7,437 results on '"S., Cheng"'
Search Results
2. [Clinical study of percutaneous endoscopic thoracic spine surgery via trench technique for thoracic spinal cord ventral decompression].
- Author
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Hu T, Deng R, Cheng S, Yan Z, Deng Z, and Yu Q
- Subjects
- Humans, Middle Aged, Male, Female, Adult, Spinal Cord Compression surgery, Spinal Cord Compression etiology, Treatment Outcome, Ossification of Posterior Longitudinal Ligament surgery, Endoscopy methods, Thoracic Vertebrae surgery, Decompression, Surgical methods, Intervertebral Disc Displacement surgery
- Abstract
Objective: To evaluate the feasibility, safety, and early effectiveness of percutaneous endoscopic thoracic spine surgery via the trench technique for ventral decompression in central calcified thoracic disc herniation (CCTDH) and thoracic ossification of the posterior longitudinal ligament (T-OPLL)., Methods: Seven patients with single-segment CCTDH or T-OPLL admitted between June 2017 and May 2020 and meeting the selection criteria were retrospectively analyzed. There were 3 males and 4 females with an average age of 51.7 years ranging from 41 to 62 years. There were 2 patients with T-OPLL (T
1, 2 in 2 cases) and 5 patients with CCTDH (T1, 2 in 1 case, T7, 8 in 1 case, T10, 11 in 2 cases, T11, 12 in 1 case). Five patients with thoracic axial pain and intercostal neuralgia had a preoperative visual analogue scale (VAS) score of 6.0 (5.0, 6.5), and 7 patients had a preoperative Japanese Orthopaedic Association (JOA) score of 21 (21.0, 22.0). Transforaminal approach was used in 4 cases and transpedicular approach in 3 cases. Ventral decompression of thoracic spinal cord was performed by thoracic endoscopy combined with trench technique. The operation time, intraoperative blood loss, postoperative hospital stay, and postoperative complications were recorded. Thoracic spine CT and MRI were performed preoperatively and postoperatively to evaluate the surgical decompression, VAS score was used to evaluate the pain of thoracic back and lower limbs, and JOA score was used to evaluate the functional recovery. Modified MacNab criteria was used to evaluate the effectiveness., Results: All surgeries were successfully completed. The operation time ranged from 60 to 100 minutes, with an average of 80.4 minutes; the intraoperative blood loss ranged from 40 to 75 mL, with an average of 57.1 mL; the postoperative hospital stay ranged from 4 to 7 days, with an average of 5.4 days. CT and MRI examinations indicated that the decompression was adequate. All 7 patients were followed up 3-22 months, with an average of 13.3 months. One case developed postoperative wound infection, and 1 case developed pneumonia; the remaining patients did not have any complications such as wound infection or cerebrospinal fluid leakage. Five patients with thoracic axial pain and intercostal neuralgia had VAS scores of 2.0 (1.5, 2.5) at 1 day after operation and 2.0 (1.0, 2.0) at last follow-up, both of which were significantly lower than the preoperative scores ( P <0.05). At 1 day after operation, the JOA scores for all 7 patients were 22.0 (21.0, 24.0), which showed no significant difference compared to the preoperative score ( P >0.05); however, at last follow-up, the score improved to 24.0 (24.0, 26.0), which was significant compared to the preoperative scores ( P <0.05). At last follow-up, the effectiveness was assessed using the modified MacNab criteria, the results were excellent in 2 cases, good in 3 cases, fair in 2 cases, and the excellent and good rate was 71.4%., Conclusion: Using the trench technique, percutaneous endoscopic thoracic spine surgery can achieve the ventral decompression in CCTDH and T-OPLL, providing a new approach for surgical treatment of CCTDH and T-OPLL.- Published
- 2024
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3. CD3D silencing alleviates diabetic nephropathy via inhibition of JAK/STAT pathway.
- Author
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Lei X, Zou F, Tang X, He F, Wang J, Cheng S, and Lei X
- Subjects
- Animals, Mice, Humans, Male, Mice, Inbred C57BL, Diabetes Mellitus, Experimental metabolism, Diabetes Mellitus, Experimental genetics, Gene Silencing, Apoptosis, STAT Transcription Factors metabolism, STAT Transcription Factors genetics, Cell Line, Lipid Metabolism, Glucose metabolism, Diabetic Nephropathies metabolism, Diabetic Nephropathies genetics, Diabetic Nephropathies pathology, Signal Transduction, Janus Kinases metabolism
- Abstract
Diabetic nephropathy (DN) is a severe microvascular complication of diabetes that poses a significant burden to global health. This investigation aims to illustrate the functional role of CD3D and its relevant mechanisms in DN progression. The pivotal genes between the GSE47183 and GSE30528 datasets were identified using bioinformatics methods. The effects of CD3D silencing on renal damage, inflammatory response, and lipid metabolism were validated in DN mice. Furthermore, the impacts of CD3D knockdown on cell viability, apoptotic rate, inflammation, and lipid levels were investigated in HK-2 cells under high glucose (HG) conditions. Additionally, RO8191 was employed to investigate the role of CD3D in the JAK/STAT pathway in HG-treated cells. A total of 5 focal genes were identified through bioinformatics and were found to be upregulated in renal tissues from DN mice. CD3D silencing mitigated pathological damage to kidneys, reduced inflammatory response, and decreased lipid accumulation in DN mice. HG stimulation restrained viability, increased apoptosis, promoted the release of inflammatory cytokines, and affected expressions of hallmarks related to lipid metabolism in HG-treated cells; these changes were partially abolished by CD3D knockdown. Mechanistically, CD3D downregulation ameliorated HG-induced injury in HK-2 cells by blocking the JAK/STAT pathway. This study underscores that CD3D silencing has significant potential as a promising candidate in the treatment of DN., (© 2024 Federation of American Societies for Experimental Biology.)
- Published
- 2024
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4. The interaction of microplastic and heavy metal in bioretention cell: Contributions of water-soil-plant system.
- Author
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Wu S, Cai C, Wang W, Bao M, Huang J, Dai Y, Wang Y, and Cheng S
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- Water Pollutants, Chemical analysis, Water Pollutants, Chemical metabolism, Biodegradation, Environmental, Metals, Heavy analysis, Soil Pollutants metabolism, Soil Pollutants analysis, Microplastics, Soil chemistry
- Abstract
The effectiveness of bioretention cells for heavy metals (HMs) and microplastics (MPs) removal from stormwater runoff has been demonstrated. Knowledge of the mechanisms that dictate the interactions between MPs and HMs would be helpful in pollution control. In this study, the performances of different water-soil-plant bioretention cells for HMs removal through the interception of polyethylene MPs (PE-MPs) were investigated. The results showed that PE-MPs bound to HMs and preferentially tended to bind to Pb (32%-44%) in the complex HMs (Cu, Zn, Cd, and Pb). This could be the reason that the concentration of Pb significantly increased in the effluent under low-intensity simulated rainfall events over a long duration. The accumulation of 1.49 g/kg PE-MPs caused a significant soil pH value decrease and a notable soil zeta potential increase in the bioretention cell, while the low sand/silt ratio media buffered this process. The retention of PE-MPs increased 138.5% in the 0-10 cm soil surface layer when the sand/silt ratio reduced from 2:1 to 1:1 and planted with Canna indica. Meanwhile, PE-MPs amplified the instability of Zn removal in bioretention cells under low-intensity rainfall events in long-duration, high silt percentage substrate and vegetation coverage. The study would contribute to developing a long-term management program for PE-MPs and HMs trapped in bioretention cells to reduce the risk of pollution transport., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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5. Study on the establishment of air pollutant and carbon emission inventory and collaborative emission reduction potential of China's coking industry from 2012 to 2022.
- Author
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Cheng L, Ye Z, Wei W, Wang K, Wang R, Yang L, Cheng S, and Zhang C
- Abstract
Coking industry is usually regarded as a high pollution and high energy consumption industry. China is accelerating its efforts to reduce pollution and carbon emissions in the industrial sector, which has received little attention as the world's largest producer of coke. Therefore, in this study, the trend of air pollution and carbon emissions in China's coking industry and the path of coordinated emission reduction were studied. The results indicate that the average annual emissions of PM, SO
2 , NOx, VOCs, and CO2 in China's coking industry from 2012 to 2022 amount to 205.98, 69.47, 193.45, 599.80 Gg and 191.10 Tg, respectively. The main sources of PM, SO2 , NOx, VOCs and CO2 in coking industry were coal preparation (51.5 %), charge and pushing (39.5 %), coke oven gas (99.8 %), byproduct recovery (47.0 %) and fuel combustion (87.5 %). The emissions from coking plants in central and southern Shanxi, eastern and southern Hebei, and central Shandong are the most concentrated. Ultra-low emission transformation and deep treatment of VOCs have greatly reduced pollutant emissions in key areas of air pollutant control, but the actual emission reduction effect of these measures has been weakened by the additional emissions caused by the increase of coke production in other non-key areas. The research on synergetic emission reduction path shows that there is a great synergistic benefit between air pollutants and CO2 emission reduction in coking industry. It is estimated that the APeq (air pollutants and carbon equivalent) of China's coking industry in 2025, 2028 and 2030 will decrease by 38.2 %, 63.5 % and 70.8 % respectively compared with 2022. With the continuous promotion of pollution reduction and carbon reduction measures, the emission reduction potential of China's coking industry will gradually shift from key areas to non-key areas., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)- Published
- 2024
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6. Based on Fe and Ni prepared organic colloidal materials as efficient oxide nanozymes for chemiluminescence detection of GSH and Hg(II) ions.
- Author
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Yan X, Cheng S, Xiao Y, Wu S, Mu H, Shi Z, Guo L, Ai F, and Zheng X
- Subjects
- Catalysis, Oxides chemistry, Water Pollutants, Chemical analysis, Water Pollutants, Chemical blood, Luminescence, Phthalic Acids chemistry, Mercury analysis, Mercury blood, Nickel chemistry, Glutathione analysis, Glutathione blood, Glutathione chemistry, Luminescent Measurements methods, Limit of Detection, Colloids chemistry, Iron chemistry, Iron analysis, Iron blood
- Abstract
Metal-organic gels (MOGs) are a type of metal-organic colloid material with a large specific surface area, loose porous structure, and open metal active sites. In this work, FeNi-MOGs were synthesized by the simple one-step static method, using Fe(III) and Ni(II) as the central metal ions and terephthalic acid as the organic ligand. The prepared FeNi-MOGs could effectively catalyze the chemiluminescence of luminol without the involvement of H
2 O2 , which exhibited good catalytic activity. Then, the multifunctional detected platform was constructed for the detection of GSH and Hg2+ , based on the antioxidant capacity of GSH, and the strong affinity between mercury ion (Hg2+ ) and GSH which inactivated the antioxidant capacity of GSH. The experimental limits of detection (LOD) for GSH and Hg2+ were 76 nM and 210 nM, and the detection ranges were 2-100 μM and 8-4000 μM, respectively. The as-proposed sensor had good performance in both detection limit and detection range of GSH and Hg2+ , which fully met the needs of daily life. Surprisingly, the sensor had low detection limits and an extremely wide detection range for Hg2+ , spanning five orders of magnitude. Furthermore, the detection of mercury ions in actual lake water and GSH in human serum showed good results, with recovery rates ranging from 90.10 % to 105.37 %, which proved that the method was accurate and reliable. The as-proposed sensor had great potential as the platform for GSH and Hg2+ detection applications., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)- Published
- 2024
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7. Vitamin D deficiency may exacerbate the role of metal exposure in depression: A cross-sectional analysis of NHANES data from 2007 to 2018.
- Author
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Gu H, Chen Z, Zhou R, Yang X, Zhang Q, Yang T, Chen X, Zhao L, and Cheng S
- Subjects
- Humans, Cross-Sectional Studies, Female, Male, Adult, Middle Aged, Environmental Exposure adverse effects, Environmental Exposure statistics & numerical data, Lead blood, Lead adverse effects, Vitamin D blood, Arsenic adverse effects, Aged, Young Adult, Vitamin D Deficiency epidemiology, Vitamin D Deficiency complications, Metals, Heavy adverse effects, Metals, Heavy blood, Nutrition Surveys, Depression epidemiology, Cadmium blood, Cadmium adverse effects
- Abstract
People are paying more and more attention to the effects of environmental factors such as heavy metals on depression, and heavy metals may destroy the homeostasis of vitamin D in the body by affecting human metabolism, and the lack of vitamin D will increase the risk of depression. There are few studies on vitamin D deficiency in depression caused by heavy metals, and it is not deep enough. Therefore, this study used logistic regression, restricted cubic spline curve, weighted quantile and Quantile g-computation model to analyze the effects of heavy metal exposure alone and in combination on vitamin D and depression, as well as the potential role of vitamin D deficiency in the process of heavy metal-induced depression. The results showed that cadmium exposure alone or in combination increased the risk of depression (P < 0.05). When Cd increased by 1 unit, the risk of depressive symptoms increased by 1.178 units. Arsenic and its compounds and lead affected vitamin D levels in the body and contributed the second highest or highest weight in the mixture (P < 0.05). It is worth noting that after grouping according to vitamin D deficiency, compared with the normal group, the mixed exposure of heavy metals in the vitamin D deficiency group had more types of metals related to depression and contributed more weight (P < 0.05). This study found that single metal or multi-metal mixed exposure is associated with depression. Vitamin D deficiency may increase the risk of depression. Vitamin D may be a potential factor in the treatment of depression caused by metal, and the specific mechanism of action needs further study., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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8. Effect of formononetin on osteoporosis in ovariectomized rats.
- Author
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Cheng S, Cao J, Jiang Z, and Peng H
- Abstract
Competing Interests: Declaration of competing interest None.
- Published
- 2024
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9. Multilocus sequence typing of clinical Burkholderia pseudomallei isolates from Cambodia.
- Author
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Gyamfi E, Delvallez G, Cheng S, Meng S, Oeurn K, Sam C, Kerleguer A, Guillard B, Bañuls AL, and Hide M
- Abstract
Melioidosis is a neglected tropical disease caused by Burkholderia pseudomallei, endemic to Southeast Asia and Northern Australia. Despite its increasing global public health and clinical significance, the molecular epidemiology of melioidosis and genetic diversity of B. pseudomallei in Cambodia remains poorly understood. This study aims to elucidate the genetic diversity and antibiotic susceptibility profiles of B. pseudomallei isolates responsible for melioidosis in humans. For this purpose, 14 clinical isolates cryopreserved at the Medical Biology Laboratory at Institut Pasteur du Cambodge from 2016 to 2020 were subjected to antimicrobial susceptibility testing and Multilocus Sequence Typing (MLST). Phenotypic testing revealed that 92.86% (13/14) of the isolates were sensitive to all tested antibiotics, while one isolate exhibited resistance to trimethoprim-sulfamethoxazole. MLST analysis resolved our isolates into 14 unique Sequence Types (STs), including 10 previously documented in Southeast Asia. Notably, ST1858, ST2064, ST2065, and ST2066 were identified as novel STs, while ST54, ST99, ST211, and ST1359 were reported in Cambodia for the first time in this study. Comparing our MLST data with available sequences on PubMLST (n = 165), our study unveiled a high genetic diversity of B. pseudomallei in Cambodia. The identified STs were closely associated with isolates from other Southeast Asian countries, particularly Thailand, Vietnam, and Malaysia. In conclusion, this study provided insight into the genetic diversity among B. pseudomallei clinical isolates in Cambodia and their close genetic association with Southeast Asian isolates. To further our understanding, a One Health approach, incorporating human, environmental (mainly soil), and animal compartments, is essential to decipher the epidemiology of B. pseudomallei in Cambodia., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Gyamfi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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10. The efficacy and safety of the prophylactic application of PEG-rhG-CSF in radiotherapy with weekly concurrent chemotherapy for cervical cancer.
- Author
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Chen H, Ma Y, Wang D, Wu H, Zhang M, Xu Y, and Cheng S
- Subjects
- Humans, Female, Middle Aged, Adult, Neutropenia prevention & control, Neutropenia etiology, Cisplatin adverse effects, Cisplatin administration & dosage, Cisplatin therapeutic use, Carboplatin administration & dosage, Carboplatin adverse effects, Carboplatin therapeutic use, Aged, Antineoplastic Combined Chemotherapy Protocols adverse effects, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Recombinant Proteins administration & dosage, Recombinant Proteins therapeutic use, Recombinant Proteins adverse effects, Uterine Cervical Neoplasms therapy, Chemoradiotherapy adverse effects, Chemoradiotherapy methods, Granulocyte Colony-Stimulating Factor administration & dosage, Granulocyte Colony-Stimulating Factor therapeutic use, Polyethylene Glycols administration & dosage, Polyethylene Glycols therapeutic use, Polyethylene Glycols adverse effects
- Abstract
Objective: To evaluate the efficacy and safety of pegylated recombinant human granulocyte colony stimulating factor (PEG-rhG-CSF) in preventing neutropenia during concurrent radiotherapy combined with weekly chemotherapy in patients with cervical cancer., Methods: From September 2019 to November 2020, 180 patients with cervical cancer who required concurrent chemoradiotherapy (CCRT) were enrolled in this study. The patients were randomly divided into the following three groups at a ratio of 1:1:1: Group A (PEG-rhG-CSF), Group B (PEG-rhG-CSF + rhG-CSF) and the control group (rhG-CSF). Cisplatin or carboplatin was administered weekly. The primary endpoint was the incidence of grade 3/4 neutropenia. The secondary endpoints were the incidence of febrile neutropenia (FN), delay of radiotherapy, chemotherapy dose reduction, rate of PFS at 2 years and 3 years, and incidence of adverse reactions., Results: Sixty patients were randomly assigned to each group. Two patients in Group B withdrew from the trial for personal reasons. The incidence of grade 1/2 neutropenia in the Control group was significantly lower than that in Group A and Group B (P < 0.001). However, the incidence of grade 3/4 neutropenia in the Control group was significantly greater than that in Group A and Group B (P < 0.001). There was no significant difference in the incidence of FN among the three groups (P = 0.771). The rate of platinum dose reduction in Group A (6.7%) and Group B (5.2%) was significantly lower than that in the Control group (30.0%) (P < 0.001). The delay rate of radiotherapy in Group A (10%) and Group B (13.8%) was obviously inferior to that in the Control group (31.7%) (P = 0.006). The 2-year PFS rates of Group A, Group B, and the Control group were 93.3%, 98.3%, and 91.7%, respectively, with no statistically significant difference (P = 0.270). The 3-year PFS rates were 89.8%, 94.1%, and 84.9%, respectively, with no statistically significant difference (P = 0.178). No treatment-related serious adverse events occurred in any of the patients., Conclusion: In Group A and Group B, The prophylactic application of PEG-rhG-CSF during conventional chemoradiotherapy combined with weekly chemotherapy for patients with cervical cancer can reduce the incidence of grade 3/4 neutropenia and does not increase the incidence of adverse reactions when compared to Control group., Trial Registration: chictr.org.cn, ChiCTR1900026309, registered 29 September 2019-prospectively registered., Competing Interests: Declarations Ethics approval and consent to participate This study was approved by the Medical Ethics Committee of the Affiliated Cancer Hospital of Zhengzhou University (No. 2019221). All patients signed informed consent forms. Consent for publication The study received written informed consent for publication by all patients. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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11. Aristolochic acid I promotes renal tubulointerstitial fibrosis by up-regulating expression of indoleamine 2,3-dioxygenase-1 (IDO1).
- Author
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Chen L, Cheng S, Ying J, Zhang Q, Wang C, Wu H, Wang Y, Zhang H, Wang J, Ye J, and Zhang L
- Abstract
Aristolochic acid I (AAI) is strongly nephrotoxic and can cause "Aristolochic acid nephropathy (AAN)". Aristolochic acid nephropathy is characterized by extensive renal interstitial fibrosis. However, the exact mechanism by which it occurs has not been fully elucidated. lt has been reported that indoleamine 2,3-dioxygenase-1 (IDO1) promotes renal fibrosis in renal disorders, but it is unclear how IDO1 functions in AAI-induced kidney fibrosis. In this work, we systematically examined the role of IDO1 in AAI-induced renal tubulointerstitial fibrosis. The results showed that AAI induced upregulation of IDO1 expression in renal tubular epithelial cells and mouse kidney. Inhibition of IDO1 expression reduced the levels of fibrosis-associated markers α-SMA, COL-I and FN and ameliorated renal tubular epithelial cell fibrosis. It also improved renal function, reduced collagen deposition, and ameliorated interstitial fibrosis in mice. Moreover, we discovered that inhibition of IDO1 decreased the expression of the apoptotic protein BAX, raised the expression of BCL-2 protein, and reduced apoptosis. The above studies suggest that IDO1 is a target of action in renal tubulointerstitial fibrosis caused by AAI, and inhibition of IDO1 may be a viable approach for the therapy of AAI-induced renal tubulointerstitial fibrosis., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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12. Assessing the causal associations of atrial fibrillation with serum uric acid level and gout: insights from a bidirectional mendelian randomization study.
- Author
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Zhu S, Zhang M, Cheng S, Wang C, and Deng F
- Subjects
- Humans, Risk Factors, Risk Assessment, Phenotype, Atrial Fibrillation genetics, Atrial Fibrillation blood, Atrial Fibrillation diagnosis, Atrial Fibrillation epidemiology, Mendelian Randomization Analysis, Uric Acid blood, Gout genetics, Gout blood, Gout diagnosis, Gout epidemiology, Genome-Wide Association Study, Polymorphism, Single Nucleotide, Genetic Predisposition to Disease, Biomarkers blood, Hyperuricemia genetics, Hyperuricemia blood, Hyperuricemia diagnosis, Hyperuricemia epidemiology
- Abstract
Background: Numerous observational studies consistently highlight a strong association between serum uric acid (sUA) levels and atrial fibrillation (AF). However, the causal relationship and the direction of this association remain elusive, despite extensive research efforts., Objective: This study aimed to investigate the bidirectional causal relationships between sUA, gout, and the risk of AF using the two-sample Mendelian randomization (MR) approach., Methods: We conducted a comprehensive analysis utilizing publicly available genome-wide association studies (GWAS) summary statistics, employing stringent criteria to meticulously select genetic variants associated with sUA, gout, and AF. Our primary analytical approach was the inverse-variance weighted (IVW) method, complemented by some sensitivity analyses, including MR-Egger, weighted median, simple mode, and weighted mode, to estimate the causal effects. To identify potential violations, we conducted Egger regression and leave-one-SNP-out analyses. We assessed the strength of instrumental variables using F values to evaluate weak instruments. Additionally, we referenced the Phenoscanner database to exclude single nucleotide polymorphisms (SNPs) associated with confounding factors or outcomes., Results: Our forward Mendelian randomization analysis suggests that there is no causal relationship between UA levels/gout from different populations and the risk of AF [IVW OR 1.03, 95% CI: 0.97-1.08; p = 0.335; IVW OR 0.99, 95% CI: 0.97-1.02; p = 0.583; and IVW OR 1.07, 95% CI: 0.84-1.37; p = 0.575], respectively. We did not detect significant heterogeneity or potential pleiotropy, and we also excluded the possibility of weak instrumental variables. Furthermore, we did not find any reverse causal effects of AF on sUA levels and gout risk., Conclusion: Our findings challenge the widely held belief that lowering urate levels is uniformly effective in reducing the risk of atrial fibrillation (AF). Our study fails to substantiate the existence of a causal link between uric acid (UA) levels or gout and the development of AF, regardless of direction., Competing Interests: Declarations Ethics approval and consent to participate Ethical approval from patients were obtained in the original studies and no further ethical approval is required for this study. Consent for publication Not applicable. Competing interests The authors declare no competing interests. Declaration of competing interest All authors declare no competing interests., (© 2024. The Author(s).)
- Published
- 2024
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13. Bayesian accuracy estimates for diagnostic tests to detect tuberculosis in captive sun bears (Helarctos malayanus) and Asiatic black bears (Ursus thibetanus) in Cambodia and Vietnam.
- Author
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Officer K, Arango-Sabogal JC, Dufour S, Lyashchenko KP, Cracknell J, Thomson S, Cheng S, Warren K, and Jackson B
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- Animals, Cambodia epidemiology, Vietnam epidemiology, Diagnostic Tests, Routine methods, Sensitivity and Specificity, Tuberculosis, Pulmonary diagnosis, Tuberculosis, Pulmonary epidemiology, Tuberculosis, Pulmonary microbiology, Tuberculosis diagnosis, Tuberculosis epidemiology, Retrospective Studies, Mycobacterium tuberculosis isolation & purification, Bronchoalveolar Lavage Fluid microbiology, Male, Female, Ursidae microbiology, Bayes Theorem
- Abstract
Effective control of tuberculosis (TB) depends on early diagnosis of disease, yet available tests are unable to perfectly detect infected individuals. In novel hosts diagnostic testing methods for TB are extrapolated from other species, with unknown accuracy. The primary challenge to evaluating the accuracy of TB tests is the lack of a perfect reference test. Here we use a Bayesian latent class analysis approach to evaluate five tests available for ante-mortem detection of pulmonary TB in captive sun bears and Asiatic black bears in Southeast Asia. Using retrospective results from screening of 344 bears at three rescue centres, we estimate accuracy parameters for thoracic radiography, a serological assay (DPP VetTB), and three microbiological tests (microscopy, PCR (Xpert MTB/RIF, Xpert MTB/RIF Ultra), mycobacterial culture) performed on bronchoalveolar lavage samples. While confirming the high specificities (≥ 0.99) of the three microbiological tests, our model demonstrated their sub-optimal sensitivities (<0.7). Thoracic radiography was the only diagnostic method with sensitivity (0.95, 95% BCI: 0.76, 0.998) and specificity (0.95, 95% BCI: 0.91, 0.98) estimated above 0.9. We recommend caution when interpreting DPP VetTB results, with the increased sensitivity resulting from treatment of weakly visible reactions as positive accompanied by a drop in specificity, and we illustrate how the diagnostic value of weak DPP VetTB reactions is particularly reduced if disease prevalence and/or clinical suspicion is low. Conversely, the reduced utility of negative microbiological tests on bronchoalveolar lavage fluid samples when prevalence and/or clinical suspicion is high is demonstrated. Taken together our results suggest multiple tests should be applied and accompanied by consideration of the testing context, to minimise the consequences of misclassification of disease status of bears at risk of TB in sanctuary settings., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Officer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
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14. Characteristics of Dissolved Organic Matter and Their Role in Membrane Fouling during Simultaneous Sludge Thickening and Reduction Using Flat-Sheet Membranes.
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Zhu X, Fang Z, Cheng S, Zhen G, Lu X, Liu H, Qi J, Wu Z, Zhang X, Zhou Z, and Sillanpää M
- Abstract
Four parallel simultaneous sludge thickening and reduction reactors using flat-sheet membranes were employed for the aerobic digestion of sludge to explore the characteristics of dissolved organic matter and its membrane fouling effect. During the initial 8 days of using flat-sheet membranes for simultaneous sludge thickening and reduction (MSTR), a notable increase was observed in the concentrations of humic acids and compounds that resemble soluble microbial by-products in the effluent. Subsequently, a fluctuating trend in humic acid levels ensued, accompanied by a gradual decline in soluble microbial by-product-like substances. Post the initial 8-day period, the capillary suction time (CST) rose from approximately 400 seconds to over 800 seconds, the viscosity increased from 20 mPa s to 38 mPa s, and the membrane resistance increased from roughly 6.0+11 m
-1 to approximately 9.0e+11 m-1 . This phenomenon can be attributed to the clogging of pores by foulants whose size is similar to that of the membrane pores leading to the accumulation and deposition of macromolecules and larger particulates forming gel layers and cake layers. The interplay among diverse microorganisms engenders functional modules, collectively influencing the distribution and characteristics of dissolved organic matter within the MSTR. These microorganisms exert their metabolic effects individually and interact reciprocally, creating synergistic and inhibitory mechanisms. Notably, the synergistic interactions among microorganisms predominated, culminating in an enhanced effluent quality within the system., Competing Interests: Declaration of Competing Interest ☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Ltd.)- Published
- 2024
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15. Advancing Cancer Vaccines with Radionuclide Imaging.
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Cheng S, Long X, Zhang Y, Lan X, and Jiang D
- Abstract
Cancer vaccines are emerged as a beacon of hope in the fight against cancer. However, the lack of effective methods to directly observe their in vivo behavior and monitor therapeutic responses hinders their translation into clinical settings. Radionuclide imaging allows for non-invasive and real-time visualization of vaccine biodistribution and immunological response, offering valuable insights into the effectiveness of cancer vaccines and aiding in patient stratification. In this review, the latest advances and potential applications of radionuclide imaging in cancer vaccines are discussed, with a specific focus on strategies for visualizing the spatiotemporal distribution of vaccines in vivo and monitoring treatment efficacy. The challenges and considerations for implementing these techniques in clinical practice are also highlighted, aiming to inform and guide future research in this field., (© 2024 Wiley‐VCH GmbH.)
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- 2024
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16. Antithrombotic coating with sheltered positive charges prevents contact activation by controlling factor XII-biointerface binding.
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Ji H, Yu K, Abbina S, Xu L, Xu T, Cheng S, Vappala S, Arefi SMA, Rana MM, Chafeeva I, Drayton M, Gonzalez K, Liu Y, Grecov D, Conway EM, Zhao W, Zhao C, and Kizhakkedathu JN
- Abstract
Antithrombotic surfaces that prevent coagulation activation without interfering with haemostasis are required for blood-contacting devices. Such materials would restrain device-induced thrombogenesis and decrease the need for anticoagulant use, thereby reducing unwanted bleeding. Here, by optimizing the interactions with coagulation factor XII rather than preventing its surface adsorption, we develop a substrate-independent antithrombotic polymeric coating with sheltered positive charges. The antithrombic properties of the coating were demonstrated in vitro with human blood and in vivo using a carotid artery-jugular vein shunt model in rabbits. The coating exhibits a strong interaction with factor XII, but results in a low reciprocal activation of the contact pathway that triggers clot formation. These findings contradict the prevailing strategy of designing antithrombotic materials through protein-repelling surfaces. Overall, the polymeric coating we describe can benefit most blood-contacting devices and is a useful engineering guideline for designing surfaces with improved antithrombotic properties., Competing Interests: Competing interests All authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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17. Chlorination of Biopterin in Water: Deciphering the Kinetics, Disinfection Byproducts, and Toxicity.
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Zuo Y, Cheng S, Han Y, Pu L, Du E, Peng M, Li A, and Li W
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- Halogenation, Kinetics, Disinfectants analysis, Disinfectants chemistry, Disinfectants toxicity, Chlorine chemistry, Nitrogen analysis, Biopterins analysis, Biopterins chemistry, Biopterins toxicity, Water Pollutants, Chemical analysis, Water Pollutants, Chemical chemistry, Water Pollutants, Chemical toxicity
- Abstract
Pterins, including biopterin prevalent during cyanobacterial blooms, are nitrogen-containing heterocyclic compounds ubiquitous in both natural and engineered environments. However, their roles and associated human risks in water treatment remain poorly understood. This study systematically investigated the kinetics, disinfection byproducts (DBPs), and toxicity of biopterin in chlorination. For deciphering the reaction kinetics, 1,3,5-trimethoxybenzene proved to be a more effective chlorine quencher than the commonly used reducing agents, as it preserved N-chlorinated intermediates without reversing them back to biopterin. The pH-dependent kinetics demonstrated that both chlorine and biopterin species had a significant influence on the reaction rates, with deprotonated biopterin exhibiting a markedly higher reactivity toward HClO/ClO
- . Based on time-of-flight mass spectrometry, ten transformation products (TPs) including seven halogenated N-Cl ones, have been identified for the first time. These cyclic TPs were transformed into various aliphatic carbonaceous and nitrogenous DBPs during the subsequent chlorination process. Notably, theoretical predictions and the luminescent bacteria assay confirmed potential higher toxicities of these products than biopterin. These findings highlight the potential risks of pterins during water disinfection and provide a reference framework for accurately revealing the chlorination behavior of emerging nitrogenous chemicals.- Published
- 2024
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18. Kinetics of nirogacestat-mediated increases in B-cell maturation antigen on plasma cells inform therapeutic combinations in multiple myeloma.
- Author
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Shearer T, Comstock M, Williams RL, Johnson MC, Cendrowicz E, Leonowens C, Smith M, Baughman TM, Breitbach CJ, Cheng S, and Green DJ
- Abstract
B-cell maturation antigen (BCMA) is the target of several investigational and approved drugs for multiple myeloma (MM). BCMA expressed on plasma cells (PCs) and MM cells is cleaved by the enzyme gamma secretase, reducing membrane-bound BCMA (mbBCMA) receptor density. Gamma secretase inhibitors (GSIs) have been shown to increase mbBCMA density and may enhance efficacy of BCMA-targeted therapies. The pharmacodynamic profile of the GSI nirogacestat was evaluated in MM cell lines and a phase 1 study in healthy volunteers. In MM cell lines, mbBCMA density and soluble BCMA (sBCMA) concentrations were measured before and after short-duration nirogacestat exposure and at serial timepoints following washout. In the phase 1 study, 23 participants were administered a single oral dose of nirogacestat 50, 150, or 300 mg or repeated doses of 100 mg every 12h for up to 48h; mbBCMA density on PCs (from whole blood and bone marrow) and nirogacestat plasma concentrations were measured at baseline and postdose. After single-dose administration, serum nirogacestat concentrations rapidly increased (Tmax ~1h), and a two-compartment model with linear absorption and clearance best described nirogacestat pharmacokinetics. In MM cells and healthy volunteers' PCs, nirogacestat resulted in rapid and robust increases in mbBCMA density, with increases up to 20-fold within 4-8h of exposure. Concomitant decreases in sBCMA were observed. Nirogacestat is currently being evaluated in combination with several BCMA-directed therapeutic agents in patients with MM. Elucidating the kinetics of BCMA in response to nirogacestat is key to guiding dosing and therapeutic strategies in MM.
- Published
- 2024
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19. Convenient in situ self-assembled formation of dual-functional Ag/MXene nanozymes for efficient chemiluminescence sensing.
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Zheng X, Shi Z, Han C, Mu H, Cheng S, and Yan X
- Abstract
MXenes are attracting increasing interest as a low-cost carrier for the development of nanozymes with enhanced peroxidase or oxidase-like activity. In this work, silver nanoparticles (AgNPs) were synthesized and loaded on Ti
3 C2 MXene nanosheets (denoted as Ag/MXene) by a simple method, using MXene as a support and reducing agent. The synthesized Ag/MXene composites exhibited satisfactory stability and the peroxidase activity was higher than that of the single components. In the presence of luminol and hydrogen peroxide (H2 O2 ), Ag/MXene could catalyze H2 O2 to produce reactive oxygen species (ROS) and act on luminol to generate strong chemiluminescent (CL) signals. Free radical scavenging experiments and electron paramagnetic resonance spectroscopy confirmed the production of these radicals. In this regard, we fabricated a facile biosensor for glutathione (GSH) and uric acid (UA) detection and the results showed good linear relationship between GSH and UA. The linear ranges of GSH and UA were 50 nM to 20 μM and 1 μM to 35 μM, respectively, with low detection limits of 0.83 nM and 0.37 μM. The sensor platform established in this study provides the possibility for developing MXene biosensors with high sensitivity and performance, and lays the solid foundation for expanding the application of MXene in biosensors.- Published
- 2024
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20. Room-Temperature Ferromagnetism with Strong Spin-Orbit Coupling Achieved in CaRuO 3 Interfacial Phase via Magnetic Proximity Effect.
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Zheng J, Zhang J, Cheng S, Shi W, Wang M, Li Z, Chen Y, Hu F, Shen B, Chen Y, Zhu T, and Sun J
- Abstract
Recently, theoretical and experimental research predicted that ferromagnets with strong spin-orbit coupling (SOC) could serve as spin sources with dramatically enhanced spin-orbit torque (SOT) efficiency due to the combination of spin Hall effect and anomalous Hall effect (AHE), presenting potential advantages over conventional nonmagnetic heavy metals. However, materials with a strong SOC and room-temperature ferromagnetism are rare. Here, we report on a ferromagnetic (FM) interfacial phase with Curie temperature exceeding 300 K in the heavy transition-metal oxide CaRuO
3 , in proximity to La0.67 Sr0.33 MnO3 . Electron energy loss and polarized neutron reflectometry spectra reveal the strong charge transfer from Ru to Mn at the interface, triggering antiferromagnetic exchange interactions between interfacial Ru/Mn ions and thus transferring magnetic order from La0.67 Sr0.33 MnO3 to CaRuO3 . An obvious advantage of such interfacial phase is the enhanced anomalous Hall effect at temperatures from 150 to 300 K. Compared to the most promising room-temperature ferromagnetic oxide La0.67 Sr0.33 MnO3 , the anomalous Hall conductivity σxy AHE (or anomalous Hall angle θH ) of CaRuO3 /La0.67 Sr0.33 MnO3 superlattices is increased by 30 (or 31) times at 150 K and 10 (or 3) times at 300 K. This work demonstrates a special approach for inducing ferromagnetism in heavy transition-metal oxides with strong SOC, offering promising prospects for all-oxide-based spintronic applications.- Published
- 2024
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21. Strong and anti-swelling nanofibrous hydrogel composites inspired by biological tissue for amphibious motion sensors.
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Ren Z, Guo F, Wen Y, Yang Y, Liu J, and Cheng S
- Subjects
- Humans, Tensile Strength, Metal Nanoparticles chemistry, Animals, Extracellular Matrix, Polyvinyl Alcohol chemistry, Nanofibers chemistry, Hydrogels chemistry, Wearable Electronic Devices, Silver chemistry
- Abstract
Conductive hydrogel-based sensors are increasingly favored for flexible electronics due to their skin-like characteristics. However, conventional hydrogels suffer from significant swelling in humid environments and poor mechanical properties which largely restrict their applications in wearable electronic devices, especially for underwater sensing. Herein, drawing inspiration from the extracellular matrix (ECM) structure, a TPU-PVAc@AgNPs/MXene nanofibrous hydrogel composite (TPAMH) with excellent mechanical robustness and anti-swelling properties is developed. The TPAMH nanofibrous hydrogel composite is created by integrating the silver nanoparticles (AgNPs) and MXene nanosheets into an interwoven network comprising of stiff TPU nanofibers as the fibril scaffold and formic acid-crosslinked PVA hydrogel fibers as the elastic matrix (PVAc). Benefiting from the unique ECM structure, the obtained nanofibrous hydrogel composites exhibit exceptional tensile strength (4.47 MPa), remarkable elongation at break (621%), excellent anti-swelling properties, and high detection sensitivity (maximum gauge factor = 105.02), which are sufficient to monitor body motions in both air and water environments effectively. They can detect large strain movements of fingers, elbows, wrists, and knees, as well as small strain physiological signals such as frown, smile, and pulse beats, with high accuracy. Particularly noteworthy is their ability to accurately identify underwater multidirectional motions and facilitate underwater smart alarms using Morse code.
- Published
- 2024
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22. Chemical Doping and O-Functionalization of Carbon-Based Electrode to Improve Vanadium Redox Flow Batteries.
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Liao H, Gao Y, Wang L, Cheng S, Liu D, Du H, and Lin L
- Abstract
The vanadium redox flow battery (VRFB) holds promise for large-scale energy storage applications, despite its lower energy and power densities compared to advanced secondary batteries available today. Carbon materials are considered suitable catalyst electrodes for improving many aspects of the VRFB. However, pristine graphite structures in carbon materials are catalytically inert and require modification to activate their catalytic activity. Among the various strategies developed so far, O-functionalization and chemical doping of carbon materials are considered some of the most promising pathways to regulate their electronic structures. Building on the catalytic mechanisms involved in the VRFB, this concise review discusses recent advancements in the O-functionalization and chemical doping of carbon materials. Furthermore, it explores how these materials can be tailored and highlights future directions for developing more promising VRFBs to guide future research., (© 2024 Wiley-VCH GmbH.)
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- 2024
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23. Sensorable zwitterionic antibacterial hydrogel for wound electrostimulation therapy.
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Li J, Chen M, Cheng S, Gao S, Zhai J, Yu D, Wang J, Zhang J, and Cai K
- Abstract
Wound healing process has always been a focal point of concern, with a plethora of hydrogel dressings available; however, their therapeutic efficacy remains a hindrance to wound closure. This article reports on a dual-network conductive system, PEDOT:PSS-co-PSBMA/XLG (PPSX) hydrogel dressing, Constructed using poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT: PSS) in combination with zwitterionic N, N-dimethyl-N-(2-methacryloyloxyethyl)-N- (3-sulfopropyl) ammonium betaine (SBMA) and nanoclay-synthesized lithium magnesium silicate (XLG). The hydrogel powder produced from it can absorb interfacial water within 30 s via physical interactions to spontaneously form hydrogels of arbitrary shapes. With a conductivity of 1.8 s/m, it can be utilized for developing flexible sensing bioelectronic devices to monitor human activities (facial expressions, blinking, swallowing, speaking, joint movements), as well as constructing electrodes for monitoring muscle movements and motorial intensity. More importantly, PPSX hydrogel effectively inhibits bacterial growth and promotes cell proliferation, thus facilitating wound healing and presenting extensive application prospects in the medical field., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. And there is no conflict of interests between the authors present in this study., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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24. Engineering of phosphatidylserine-targeting ROS-responsive polymeric prodrug for the repair of ischemia-reperfusion-induced acute kidney injury.
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Wang JH, Mao HB, Hu JB, Cheng S, and Su H
- Abstract
Ischemia-reperfusion-induced acute kidney injury (IR-AKI) commonly occurs in situations such as hemorrhagic shock, kidney transplantation, and cardiovascular surgery. As one of the significant causes of AKI, IR-AKI is characterized by its high incidence and mortality rates. Currently, effective inflammation control is the key for the treatment of IR-AKI. In this study, we developed an ROS-responsive polymeric prodrugs (Zn-D/DTH) which could target the externalized PS of apoptotic cells, and then responsively released HDM (anti-inflammatory peptides) in the presence of intracellular ROS. Zn-D/DTH effectively ameliorated renal function and mitigated pathological alterations such as the loss of the brush border, tubular dilation, and accumulation of cellular debris within the tubular lumens. Furthermore, Zn-D/DTH greatly reduced the generation of pro-inflammatory factors like IL-6, COX-2, and iNOS in renal tissues, suggesting its protective role largely stems from suppression of the inflammatory response. Additional mechanism exploration revealed that Zn-D/DTH markedly decreased the expression levels of TLR4 and MyD88, as well as the phosphorylation of NF-κB in the damaged kidneys. This, in turn, reduced the number of apoptotic tubular cells and the activity of Caspase 9 and Caspase 3 caused by ischemia-reperfusion. Additionally, Zn-D/DTH treatment showed improvement in the long-term renal damage and fibrosis induced by ischemia-reperfusion. The experimental outcomes indicated that Zn-D/DTH attenuated renal ischemia-reperfusion injury and delayed the transition from acute kidney injury to chronic kidney disease by downregulating the TLR4/MyD88/NF-κB signaling pathway and reducing the expression of apoptotic caspases, thereby inhibiting inflammation and reducing cell apoptosis., Competing Interests: Declaration of competing interest The authors report no declarations of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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25. PD-L2 of tumor-derived exosomes mediates the immune escape of cancer cells via the impaired T cell function.
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Liu T, Cheng S, Peng B, Zang H, Zhu X, Wang X, Zhao X, Gu Y, Pan Y, Hu H, and Gao S
- Subjects
- Humans, Animals, Cell Line, Tumor, Mice, T-Lymphocytes immunology, T-Lymphocytes metabolism, CD8-Positive T-Lymphocytes immunology, CD8-Positive T-Lymphocytes metabolism, Lymphocytes, Tumor-Infiltrating immunology, Lymphocytes, Tumor-Infiltrating metabolism, Programmed Cell Death 1 Receptor metabolism, B7-H1 Antigen metabolism, T-Lymphocytes, Regulatory immunology, T-Lymphocytes, Regulatory metabolism, Exosomes metabolism, Exosomes immunology, Tumor Escape, Programmed Cell Death 1 Ligand 2 Protein metabolism, Carcinoma, Renal Cell immunology, Carcinoma, Renal Cell pathology, Carcinoma, Renal Cell metabolism, Kidney Neoplasms immunology, Kidney Neoplasms pathology, Kidney Neoplasms metabolism
- Abstract
The function of PD-1/PD-L1 axis have been intensively studied for immune escape of various cancers. However, the underlying function of PD-L2 remains poorly understood. Here, we demonstrate that PD-L2 is majorly expressed in exosomes with surface localization by clear cell renal cell carcinoma (ccRCC) cells. Tumor cell-derived exosome PD-L2 (TDE-PD-L2) exhibits high expression compared with TDE-PD-L1 in various cancers. In the absence of adaptive immune, TDE-PD-L2 suppresses tumor growth and metastasis. Under immune competence condition, TDE-PD-L2 is hijacked by immune cells in a PD-1-dependent manner to systematically dampen function of T cells via the increased proportion of the regulatory T cells and the decreased proportion of cytotoxic CD8
+ T cells in both tumor-infiltrating T cells and spleen. The effects of TDE-PD-L2 on tumor is restored by antibodies targeting PD-L2. Collectively, we demonstrate that PD-1/TDE-PD-L2 axis systematically suppresses T cell functions, representing a potentially therapeutic strategy for ccRCC treatment., (© 2024. The Author(s).)- Published
- 2024
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26. Borneol-Functionalized Macrophage Membrane-Encapsulated Mesoporous Selenium Nanoparticles Loaded with Resveratrol for the Treatment of Spinal Cord Injury.
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Liu X, Du J, Sun J, Wang H, An J, Li Y, Hu Y, Cheng S, Feng H, Tian H, Mei X, Qiu Y, and Wu C
- Abstract
Spinal cord injury (SCI) is a serious neurological disease that can result in paralysis. After SCI occurs, the blood-spinal cord barrier (BSCB) is disrupted, and permeability is transiently elevated. However, the permeability of the BSCB returns to normal over time, which prevents many drugs from being used in subsequent treatments. In this study, we designed a borneol-functionalized macrophage membrane encapsulating mesoporous selenium nanoparticles loaded with resveratrol (MSe-Res-BMMs) for SCI treatment. In vivo animal experiments and in vitro cell experiments demonstrated that MSe-Res-BMMs were able to protect neurons from ferroptosis by reducing ROS levels and increasing glutathione peroxidase-4 (GP x -4) activity. In addition, this treatment also reduced ROS-induced inflammation and apoptosis by decreasing the expression of inflammatory factor IL-1β and apoptotic factor Cleaved Caspase-3 at the site of injury. Therefore, MSe-Res-BMMs are expected to provide new therapeutic options for SCI treatment.
- Published
- 2024
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27. Transcriptomic analysis of melanoma cells reveals an association of α-synuclein with regulation of the inflammatory response.
- Author
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Rajasekaran S, Cheng S, Gajendran N, Shekoohi S, Chesnokova L, Yu X, and Witt SN
- Subjects
- Humans, Cell Line, Tumor, Gene Expression Profiling, Transcriptome, alpha-Synuclein genetics, alpha-Synuclein metabolism, Melanoma genetics, Melanoma metabolism, Melanoma pathology, Inflammation genetics, Inflammation metabolism, Gene Expression Regulation, Neoplastic
- Abstract
The Parkinson's disease protein, alpha-synuclein (α-syn/SNCA), is highly expressed in neurons and melanomas. The goal of this study was to reveal the mechanism(s) of α-syn's involvement in melanoma pathogenesis. To decipher the genes and pathways affected by α-syn, we conducted an RNA sequencing analysis of human SK-MEL-28 cells and several SK-MEL-28 SNCA-KO clones. We identified 1098 significantly up-regulated genes and 660 significantly down-regulated genes. Several of the upregulated genes are related to the immune system, i.e., the inflammatory response and the matrisome. We validated five upregulated genes (IL-1β, SAA1, IGFBP5, CXCL8, and CXCL10) by RT-qPCR and detected IGFBP5 and IL-1β in spent media of control and SNCA-KO cells. The levels of each of these secreted proteins were significantly higher in the spent media of the SNCA-KO clones than control cells. These secreted proteins quite likely activate the immune response against SNCA-KO cells. We suggest that, conversely, high levels of α-syn expression in melanoma cells helps the cells evade the immune system by inhibiting the secretion of these immune activating factors., (© 2024. The Author(s).)
- Published
- 2024
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28. LC3B-Regulated Autophagy Mitigates Zinc Oxide Nanoparticle-Induced Epithelial Cell Dysfunction and Acute Lung Injury.
- Author
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Chen R, Luo S, Zhang Y, Mao L, Diao J, Cheng S, Zou Z, Chen C, Qin X, Jiang X, and Zhang J
- Abstract
Zinc oxide nanoparticles (ZnONPs) are widely utilized across various industries, raising concerns about their potential toxicity, especially in the respiratory system. This study explores the role of autophagy, regulated by microtubule-associated protein 1A/1B-light chain 3B (LC3B), in ZnONPs-induced toxicity using both in vivo (LC3B knockout mice) and in vitro (BEAS-2B cells) models. Our findings demonstrate that LC3B-regulated autophagy mitigates ZnONPs-induced epithelial cell dysfunction and acute lung injury. In the absence of LC3B, oxidative stress, inflammation, and intracellular zinc accumulation are exacerbated, resulting in mitochondrial dysfunction and epithelial cell death. In vitro, LC3B knockdown disrupted zinc ion transporter expression and impaired mitophagic flux in BEAS-2B cells. Treatment with zinc ion chelators alleviated these toxic effects, confirming that free zinc ions play a critical role in driving ZnONPs toxicity. These findings highlight that targeting autophagy and maintaining zinc homeostasis could offer therapeutic strategies to reduce ZnONPs-induced lung damage., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Society of Toxicology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2024
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29. Serum Metabolome Signature Response to Different Types of Resistance Training.
- Author
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Feuerbacher JF, Cheng R, Sedliak M, Hu M, Finni TJ, Umlauff L, Schumann M, and Cheng S
- Abstract
Pneumatic resistance training (PRT) facilitates a longer time under tension that might lead to greater changes in body composition when compared to traditional resistance training (TRT), possibly enhancing serum metabolite concentrations indicative of healthy metabolic function. To assess the impact of PRT and TRT on muscular strength, body composition, and serum metabolome, 69 men (age: 31.8±7.2 years, height: 179.7±5.4 cm, weight: 81.1±9.9 kg) were randomized into two 10-week intervention groups (PRT:n=24 and TRT:n=24) and one control group (CON:n=21). Serum metabolite concentrations were assessed before and after the training intervention by high-throughput nuclear magnetic resonance. Fat mass and lean mass were obtained by bioimpedance analysis. The training intervention resulted in an increase in lean mass for both PRT (1.85±2.69%; p=0.003) and TRT (2.72±4.53%; p=0.004), while only PRT reduced statistically significantly in body fat percentage (PRT: -5.08±10.76%; p=0.019). Only in PRT and TRT significant increases in small high-density lipoproteins (S-HDL-L) and small HDL particles (S-HDL-P) were observed. When controlling for fat and lean mass, the effects on S-HDL-L/S-HDL-P diminished. Network analysis may suggest that PRT and TRT result in an increase in network connectivity and robustness. It appears that the observed improvements are associated with changes in body composition., Competing Interests: The authors declare that they have no conflict of interest., (Thieme. All rights reserved.)
- Published
- 2024
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30. Influence of Injury to the Kaplan Fibers and Anterolateral Ligament on Pivot-Shift Phenomenon in Adult and Adolescent Patients With Anterior Cruciate Ligament Injury: A Retrospective Cohort Study.
- Author
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Cui J, Cheng S, Luo Y, Li Q, Li F, Wang Y, and Ming H
- Abstract
Background: Studies have shown that Kaplan fibers (KFs) play a role in controlling anterolateral rotatory knee laxity in anterior cruciate ligament (ACL) injury. However, recent clinical studies have suggested that KF injuries are not associated with a higher-grade pivot shift in knees with acute ACL injuries., Purpose: To compare the effect of KF and anterolateral ligament injury on anterolateral rotatory laxity as measured by the pivot-shift test in both adult and adolescent patients with acute ACL injury., Study Design: Cross-sectional study; Level of evidence, 3., Methods: This study consisted of patients who experienced primary acute ACL tears between January 2019 and December 2021. The magnetic resonance imaging examinations and pivot-shift tests for these individuals were conducted within 14 days after injury. Variables associated with concomitant injury were included in a binary logistic regression model to evaluate risk factors of a high-grade pivot shift and a KF injury., Results: The study included 540 patients with acute ACL tears (64 adolescent patients and 476 adults). The main risk factor for a high-grade pivot shift after acute ACL injury in adults was partial or total disruption of anterolateral ligament continuity (odds ratio [OR], 2.271; 95% CI, 1.499-3.442). In adolescent patients, the main risk factor was KF injury (OR, 19.98; 95% CI, 2.367-168.669), including edema and disruption of continuity., Conclusion: The main risk factor for a high-grade pivot shift after acute ACL injury differs between adolescent patients and adults: the KF injury sign in adolescent patients indicates a higher-grade pivot shift., Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: This study was supported by the Scientific Research Program of Sichuan Medical and Health Care Promotion Institute (KY2022SJ0396) and Research Program of Sichuan Medical Association (Q22085). AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto., (© The Author(s) 2024.)
- Published
- 2024
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31. RNF19A inhibits bladder cancer progression by regulating ILK ubiquitination and inactivating the AKT/mTOR signalling pathway.
- Author
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Deng H, Ji G, Ma J, Cai J, Cheng S, and Cheng F
- Subjects
- Humans, Cell Line, Tumor, Cell Proliferation, Ubiquitin-Protein Ligases genetics, Ubiquitin-Protein Ligases metabolism, Cell Movement, Disease Progression, Gene Expression Regulation, Neoplastic, Urinary Bladder Neoplasms genetics, Urinary Bladder Neoplasms metabolism, Urinary Bladder Neoplasms pathology, TOR Serine-Threonine Kinases metabolism, TOR Serine-Threonine Kinases genetics, Proto-Oncogene Proteins c-akt metabolism, Proto-Oncogene Proteins c-akt genetics, Ubiquitination, Protein Serine-Threonine Kinases metabolism, Protein Serine-Threonine Kinases genetics, Signal Transduction
- Abstract
Background: The role of the RING finger protein superfamily in carcinogenesis has been widely studied, but one member of this family, RNF19A, has not yet been thoroughly explored in bladder cancer (BCa)., Methods: The expression levels of RNF19A in BCa samples and cell lines were analysed through data mining of public resources and further experiments. BCa cells in which RNF19A was stably overexpressed or knocked down were generated through lentivirus infection. The effects of RNF19A on cell proliferation, migration, and invasion were explored by performing a series of in vitro experiments, including CCK-8, colony formation, wound healing, and Transwell invasion assays. Using bioinformatics methods and multiple experiments, including western blot, qRT‒PCR, immunoprecipitation, cycloheximide, ubiquitination, and rescue assays, the mechanism underlying the effect of RNF19A on the progression of BCa was investigated., Results: Here, we found that RNF19A expression was reduced in BCa samples and cell lines and that lower RNF19A expression predicted shorter overall survival of BCa patients. Functionally, forced expression of RNF19A suppressed BCa cell proliferation, migration, and invasion by inactivating the AKT/mTOR signalling pathway, whereas silencing RNF19A had the opposite effects. Mechanistically, RNF19A could directly interact with ILK and promote its ubiquitination and degradation. Rescue experiments revealed that forced ILK expression partially rescued the decreased phosphorylation of AKT, mTOR, and S6K1 caused by RNF19A overexpression and that the increased levels of the p-AKT, p-mTOR, and p-S6K1 proteins induced by RNF19A knockdown were eliminated after silencing ILK. Similarly, the effects of RNF19A overexpression or knockdown on the phenotypes of cell proliferation, migration, and invasion could also be restored by forced or decreased ILK expression., Conclusions: RNF19A suppressed the proliferation, migration, and invasion abilities of BCa cells by regulating ILK ubiquitination and inactivating the AKT/mTOR signalling pathway. RNF19A might be a potential prognostic biomarker and promising therapeutic target for BCa., (© 2024. The Author(s).)
- Published
- 2024
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32. Stratifying Lung Adenocarcinoma Risk with Multi-ancestry Polygenic Risk Scores in East Asian Never-Smokers.
- Author
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Blechter B, Wang X, Shi J, Shiraishi K, Choi J, Matsuo K, Chen TY, Dai J, Hung RJ, Chen K, Shu XO, Kim YT, Choudhury PP, Williams J, Landi MT, Lin D, Zheng W, Yin Z, Zhou B, Wang J, Seow WJ, Song L, Chang IS, Hu W, Chien LH, Cai Q, Hong YC, Kim HN, Wu YL, Wong MP, Richardson BD, Li S, Zhang T, Breeze C, Wang Z, Bassig BA, Kim JH, Albanes D, Wong JY, Shin MH, Chung LP, Yang Y, An SJ, Zheng H, Yatabe Y, Zhang XC, Kim YC, Caporaso NE, Chang J, Man Ho JC, Kubo M, Daigo Y, Song M, Momozawa Y, Kamatani Y, Kobayashi M, Okubo K, Honda T, Hosgood HD, Kunitoh H, Watanabe SI, Miyagi Y, Nakayama H, Matsumoto S, Horinouchi H, Tsuboi M, Hamamoto R, Goto K, Ohe Y, Takahashi A, Goto A, Minamiya Y, Hara M, Nishida Y, Takeuchi K, Wakai K, Matsuda K, Murakami Y, Shimizu K, Suzuki H, Saito M, Ohtaki Y, Tanaka K, Wu T, Wei F, Dai H, Machiela MJ, Su J, Kim YH, Oh IJ, Fun Lee VH, Chang GC, Tsai YH, Che KY, Huang MS, Su WC, Chen YM, Seow A, Park JY, Kweon SS, Chen KC, Gao YT, Qian B, Wu C, Lu D, Liu J, Schwartz AG, Houlston R, Spitz MR, Gorlov IP, Wu X, Yang P, Lam S, Tardon A, Chen C, Bojesen SE, Johansson M, Risch A, Bickeböller H, Ji BT, Wichmann HE, Christiani DC, Rennert G, Arnold S, Brennan P, McKay J, Field JK, Davies MPA, Shete SS, Le Marchand L, Liu G, Andrew A, Kiemeney LA, Zienolddiny-Narui S, Grankvist K, Johansson M, Cox A, Taylor F, Yuan JM, Lazarus P, Schabath MB, Aldrich MC, Jeon HS, Jiang SS, Sung JS, Chen CH, Hsiao CF, Jung YJ, Guo H, Hu Z, Burdett L, Yeager M, Hutchinson A, Hicks B, Liu J, Zhu B, Berndt SI, Wu W, Wang J, Li Y, Choi JE, Park KH, Sung SW, Liu L, Kang CH, Wang WC, Xu J, Guan P, Tan W, Yu CJ, Yang G, Loon Sihoe AD, Chen Y, Choi YY, Kim JS, Yoon HI, Park IK, Xu P, He Q, Wang CL, Hung HH, Vermeulen RCH, Cheng I, Wu J, Lim WY, Tsai FY, Chan JKC, Li J, Chen H, Lin HC, Jin L, Liu J, Sawada N, Yamaji T, Wyatt K, Li SA, Ma H, Zhu M, Wang Z, Cheng S, Li X, Ren Y, Chao A, Iwasaki M, Zhu J, Jiang G, Fei K, Wu G, Chen CY, Chen CJ, Yang PC, Yu J, Stevens VL, Fraumeni JF, Chatterjee N, Gorlova OY, Amos CI, Shen H, Hsiung CA, Chanock SJ, Rothman N, Kohno T, Lan Q, and Zhang H
- Abstract
Polygenic risk scores (PRSs) are promising for risk stratification but have mainly been developed in European populations. This study developed single- and multi-ancestry PRSs for lung adenocarcinoma (LUAD) in East Asian (EAS) never-smokers using genome-wide association study summary statistics from EAS (8,002 cases; 20,782 controls) and European (2,058 cases; 5,575 controls) populations. A multi-ancestry PRS, developed using CT-SLEB, was strongly associated with LUAD risk (odds ratio=1.71, 95% confidence interval (CI):1.61,1.82), with an area under the receiver operating curve value of 0.640 (95% CI:0.629,0.653). Individuals in the highest 20% of the PRS had nearly four times the risk compared to the lowest 20%. Individuals in the 95
th percentile of the PRS had an estimated 6.69% lifetime absolute risk. Notably, this group reached the average population 10-year LUAD risk at age 50 (0.42%) by age 41. Our study underscores the potential of multi-ancestry PRS approaches to enhance LUAD risk stratification in EAS never-smokers.- Published
- 2024
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33. BPDCN MYB fusions regulate cell cycle genes, impair differentiation and induce myeloid-dendritic cell leukemia.
- Author
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Booth CA, Bouyssou JM, Togami K, Armand O, Rivas HG, Yan K, Rice S, Cheng S, Lachtara EM, Bourquin JP, Kentsis A, Rheinbay E, DeCaprio JA, and Lane AA
- Abstract
MYB fusions are recurrently found in select cancers, including blastic plasmacytoid dendritic cell neoplasm (BPDCN), an acute leukemia with poor prognosis. They are markedly enriched in BPDCN compared to other blood cancers, and in some patients are the only obvious somatic mutation detected. This suggests they may alone be sufficient to drive dendritic cell transformation. MYB fusions are hypothesized to alter the normal transcription factor activity of MYB, but mechanistically how they promote leukemogenesis is poorly understood. Using CUT&RUN chromatin profiling, we found that in BPDCN leukemogenesis, MYB switches from being a regulator of dendritic cell lineage genes to aberrantly regulating G2/M cell cycle control genes. MYB fusions found in BPDCN patients increased the magnitude of DNA binding at these locations, and this was linked to BPDCN-associated gene expression changes. Furthermore, expression of MYB fusions in vivo impaired dendritic cell differentiation and induced transformation to generate a mouse model of myeloid-dendritic acute leukemia. Therapeutically, we present evidence that all-trans retinoic acid (ATRA) may cause loss of MYB protein and cell death in BPDCN.
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- 2024
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34. Colloidal Synthesis of Blue-Emitting Cs 3 TmCl 6 Nanocrystals via Localized Excitonic Recombination for Down-Conversion White Light-Emitting Diodes.
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Wang M, Chen X, Zhang F, Ma Z, Ji X, Cheng S, Pan G, Wu D, Li XJ, Zhang Y, Shan C, and Shi Z
- Abstract
Lead-halide perovskite nanocrystals (NCs) have gained significant attention for their promising applications in lighting and display technologies. However, blue-emitting NCs have struggled to match the high efficiency of their red and green counterparts. Moreover, many reported blue-emitting perovskite NCs contain heavy metal lead (Pb), which poses risks to human health and the environment. In this study, we synthesized rare-earth-based Cs
3 TmCl6 NCs via the hot injection method, which exhibit a broadband blue emission at 440 nm. Combined experimental and theoretical studies indicate that the broadband emission in Cs3 TmCl6 arises from self-trapped excitons due to the excited-state structural distortion of the [TmCl6 ]3- cluster. Furthermore, the ultrafast dynamics of charge carriers were analyzed using time-resolved photoluminescence and transient absorption measurements. Encouraged by the remarkable thermal, light, and water stabilities of Cs3 TmCl6 NCs, as evidenced by experimental and theoretical results, a white light-emitting diode was further designed and fabricated using the Cs3 TmCl6 NCs as the color converter. The device exhibits outstanding performance, achieving a long half-lifetime of 336 h and a large color-rendering index of 87.0. Combining eco-friendly features and a facile synthesis method, the rare-earth-based Cs3 TmCl6 NCs mark a significant breakthrough as a reliable blue emitter, showcasing their future potential in lighting and display applications.- Published
- 2024
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35. Chinese expert consensus on clinical application of molecularly targeted drugs for hepatocellular carcinoma (2022 edition).
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Sun J, Li Q, Bai X, Cai J, Chen Y, Chen M, Dai C, Fang C, Jia W, Li X, Wen T, Xia J, Ying M, Zhang Z, Zhang X, Zeng Z, and Cheng S
- Published
- 2024
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36. Microalgae realizes self N-doped biochar for heavy metal polluted sediment remediation.
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Wang W, Wu S, Huang J, Zhang X, Xie J, Lu Y, Li J, Wei J, Wu B, and Cheng S
- Subjects
- Adsorption, Spirulina chemistry, Nitrogen chemistry, Charcoal chemistry, Microalgae chemistry, Geologic Sediments chemistry, Metals, Heavy chemistry, Water Pollutants, Chemical chemistry, Environmental Restoration and Remediation methods
- Abstract
Heavy metal contamination in sediment has become a significant global environmental challenge. Numerous studies have demonstrated the effectiveness of modified biochar to solve heavy metal contamination in sediment. However, the modification process with complex methods and expensive modifiers prevented its large-scale application. In this study, an N self-doped biochar was obtained by pyrolysis of Spirulina sp. (SBC). Meanwhile, the K
2 CO3 impregnation method was utilized to prepare Spirulina sp. biochar (KSBC), which demonstrated a higher specific surface area (874 m2 /g) and richer O, N functional groups. The adsorption capacity of KSBC550-120 for Cu (Ⅱ), Zn (Ⅱ), and Cd (Ⅱ) was 57.9 ± 0.3 mg/g, 43.6 ± 0.7 mg/g, and 63.9 ± 0.6 mg/g, respectively. The adsorption process is primarily governed by chemical processes, mainly through ion exchange, surface complexation, dissolution-precipitation, electrostatic interactions, adsorption-reduction, and cation-π interactions. Moreover, utilizing KSBC550-120 for mixing or capping effectively reduced heavy metal concentrations in both the overlying and pore water of the sediments. 1.0 wt% KSBC550-120 with capping treatment significantly reduced the release of heavy metals from the sediment by 80.3-91.9%. This study provides effective theoretical support for re-utilizing waste algal residues and remediation of the heavy metal-contaminated river and lake sediments using microalgae biochar., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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37. Copper and cadmium co-contamination increases the risk of nitrogen loss in red paddy soils.
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Guo Y, Cheng S, Fang H, Geng J, Li Y, Shi F, Wang H, Chen L, and Zhou Y
- Subjects
- China, Bacteria metabolism, Bacteria genetics, Bacteria classification, Soil chemistry, Oryza metabolism, Oryza growth & development, Nitrogen Cycle, Denitrification, Microbiota drug effects, Cadmium toxicity, Cadmium metabolism, Soil Pollutants metabolism, Copper toxicity, Soil Microbiology, Nitrogen metabolism
- Abstract
The microbiome plays a crucial role in soil nitrogen (N) cycling and in regulating its bioavailability. However, the functional and genomic information of microorganisms encoding N cycling in response to copper (Cu) and cadmium (Cd) contamination is largely unknown. Here, metagenomics and genome binning were used to examine microbial N cycling in Cu and Cd co-contaminated red paddy soils collected from a polluted watershed in southern China. The results showed that soil Cu and Cd concentrations induced more drastic changes in microbial N functional and taxonomic traits than soil general properties. Soil Cu and Cd co-contamination stimulated microbial nitrification, denitrification, and dissimilatory nitrate reduction processes mainly by increasing the abundance of Nitrospira (phylum Nitrospirota), while inhibiting N fixation by decreasing the abundance of Desulfobacca. These contrasting changes in microbial N cycling processes suggested a potential risk of N loss in paddy soils. A high-quality genome was identified as belonging to Nitrospirota with the highest abundance in heavily contaminated soils. This novel Nitrospirota strain possessed metabolic capacities for N transformation and metal resistance. These findings elucidate the genetic mechanisms underlying soil N bioavailability under long-term Cu and Cd contamination, which is essential for maintaining agricultural productivity and controlling heavy metal pollution., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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38. Fabrication and characterization of double-layer active intelligent film based on chitosan, polyvinyl alcohol, grape skin anthocyanin and selenium nanoparticle.
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Chen X, Xiao N, Xiang H, Li S, Zhu Z, Cong X, Chen X, and Cheng S
- Abstract
This study involved the fabrication of double-layer intelligent films using chitosan (CS), polyvinyl alcohol (PVA), grape skin anthocyanin (GSA), gellan gum (GG) and selenium nanoparticles (SeNPs). The CS/PVA/GSA layer functioned as the internal indicator layer, and the GG/SeNPs layer acted as the external layer for antioxidant and antimicrobial purposes. SEM, FTIR, XRD, and TGA results confirmed the successful fabrication of double-layer films as well as the presence of hydrogen bonding interaction between the two layers. The tensile strength of double-layer films (8.06 MPa-9.61 MPa) fallen between that of single-layer CS/PVA/GSA film (12.51 MPa) and GG/SeNPs film (1.50 MPa-7.67 MPa). The double-layer films demonstrated good UV-blocking abilities, as well as outstanding antioxidant (ABTS scavenging rate can be up to ∼80 %) and antimicrobial properties. Compared with single-layer CS/PVA/GSA film, the double-layer film incorporated with 6.6 wt% SeNPs (CPG/GS2 film) possessed a more rapid and stronger response towards NH
3 /acetic acid as well as enhanced storage stability. Furthermore, the CPG/GS2 film can increase the shelf life of strawberries at 25 °C by 4 days, and its visible color change showed strong correlation with the weight loss rate (R2 = 0.99) and hardness (R2 = 0.98) of strawberries., Competing Interests: Declaration of competing interest The authors declared that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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39. Distinct mechanisms and functions of episodic memory.
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Cheng S
- Subjects
- Humans, Cognition physiology, Cognitive Science history, Cognitive Science methods, History, 20th Century, History, 21st Century, Mental Recall physiology, Memory, Episodic
- Abstract
The concept of episodic memory (EM) faces significant challenges by two claims: EM might not be a distinct memory system, and EM might be an epiphenomenon of a more general capacity for mental time travel (MTT). Nevertheless, the observations leading to these arguments do not preclude the existence of a mechanically and functionally distinct EM system. First, modular systems, like cognition, can have distinct subsystems that may not be distinguishable in the system's final output. EM could be such a subsystem, even though its effects may be difficult to distinguish from those of other subsystems. Second, EM could have a distinct and consistent low-level function, which is used in diverse high-level functions such as MTT. This article introduces the scenario construction framework, proposing that EM crucially rests on memory traces containing the gist of an episodic experience. During retrieval, EM traces trigger the reconstruction of semantic representations, which were active during the remembered episode, and are further enriched with semantic information, to generate a scenario of the past experience. This conceptualization of EM is consistent with studies on the neural basis of EM and resolves the two challenges while retaining the key properties associated with EM. This article is part of the theme issue 'Elements of episodic memory: lessons from 40 years of research'.
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- 2024
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40. Multiple Genotypes and Reassortants of Severe Fever With Thrombocytopenia Syndrome Virus Co-Circulating in Hangzhou in Southeastern China, 2013-2023.
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Wen Y, Ni Z, Hu Y, Wu J, Fang Y, Zhang G, Huang R, Cheng S, Cao F, Xu Q, Yu Y, Liu M, Yu H, Huo L, and Li J
- Subjects
- China epidemiology, Humans, Genetic Variation, Recombination, Genetic, Whole Genome Sequencing, RNA, Viral genetics, Sequence Analysis, DNA, Phlebovirus genetics, Phlebovirus classification, Phlebovirus isolation & purification, Genotype, Reassortant Viruses genetics, Phylogeny, Severe Fever with Thrombocytopenia Syndrome virology, Severe Fever with Thrombocytopenia Syndrome epidemiology, Genome, Viral genetics
- Abstract
Severe fever with thrombocytopenia syndrome (SFTS), a tick-borne infectious disease caused by the SFTS virus (SFTSV), is becoming a significant public health threat due to its high mortality rate. Knowledge of SFTSV in southeastern coastal China is limited. The whole genomes of 66 SFTSV strains collected from 2013 to 2023 in Hangzhou, a coastal city in China, were amplified and sequenced to elucidate the geography-related genetic and pathogenic diversity. Hangzhou SFTSVs could be classified into five pure genotype groups (A, B-2, D, E, and F); genotype A was dominant, and genotype E was significantly associated with SFTS fatality. An unclassified sublineage of the L segment was proposed as a novel B-4 subgenotype. Seven types of genetic reassortants (abbreviated as B-3B-3B-1, CCA, B-2AB-2, B-2CB-2, DFD, B-4FF, and B-4B-2B-1 for the L, M, and S segments) were identified, including three novel forms. Six recombination events and ten amino acid substitutions were identified in the Hangzhou viruses. Collectively, our results demonstrated that all known SFTSV genotypes co-circulated in Hangzhou, leading to a gradual increase in genetic diversity and the generation of novel reassortants. Increased surveillance is urgently needed in Hangzhou, a critical region for SFTSV genetic exchange., (© 2024 Wiley Periodicals LLC.)
- Published
- 2024
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41. EEG microstate in people with different degrees of fear of heights during virtual high-altitude exposure.
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Teng C, Cong L, Tian Q, Liu K, Cheng S, Zhang T, Dang W, Hou Y, Ma J, Hui D, and Hu W
- Subjects
- Humans, Male, Adult, Female, Young Adult, Phobic Disorders physiopathology, Support Vector Machine, Brain physiology, Electroencephalography methods, Altitude, Fear physiology, Virtual Reality
- Abstract
Previous neuroimaging studies based on electroencephalography (EEG) microstate analysis have identified abnormal neural electric activity in patients with psychiatric diseases. However, the microstate information in individuals with different degrees of fear of heights (FoH) remains unknown so far. The aim of the study was therefore to explore the changes of EEG microstate characteristics in different FoH individuals when exposed to high-altitude stimulated by virtual reality (VR). First, acrophobia questionnaire (AQ) before the experiment and 32-channel EEG signals under the virtual high-altitude exposure were collected from 69 subjects. Second, each subject was divided into one of three levels of FoH including no-FoH, mild or moderate FoH (m-FoH) and severe FoH (s-FoH) groups according to their AQ scores. Third, using microstate analysis, we transformed EEG data into sequences of characteristic topographic maps and computed EEG microstate features including microstate basic parameters, microstate sequences complexity and microstate energy. Finally, the extracted features as inputs were sent to train and test an support vector machine (SVM) for classifying different FoH groups. The results demonstrated that five types of microstates (labeled as A, B, C, D and F) were identified across all subjects, of which microstates A-D resembled the four typical microstate classes and microstate F was a non-canonical microstate. Significantly decreased occurrence, coverage and duration of microstate F and transition probabilities from other microstates to microstate F in m-FoH and s-FoH groups were observed compared to no-FoH group. It was also demonstrated that both m-FoH and s-FoH groups showed a notable reduction in sample entropy and Lempel-Ziv complexity. Moreover, energies of microstate D for m-FoH group and microstate B for s-FoH group in right parietal, parietooccipital and occipital regions exhibited prominent decreases as comparison to people without FoH. But, no significant differences were found between m-FoH and s-FoH groups. Additionally, the results indicated that AQ-anxiety scores were negatively correlated with microstate basic metrics as well as microstate energy. For classification, the performance of SVM reached a relatively high accuracy of 89 % for distinguishing no-FoH from m-FoH. In summary, the findings highlight the alterations of EEG microstates in people with fear of heights induced by virtual high-altitude, reflecting potentially underlying abnormalities in the allocation of neural assemblies. Therefore, the combination of EEG microstate analysis and VR may be a potential valuable approach for the diagnosis of fear of heights., Competing Interests: Declaration of Competing Interest The authors declare no biomedical financial interests or potential conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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42. A simplified approach to define cervical vertebral levels in spinal cord MRI studies.
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Papinutto N, Perretti I, Mallott J, Cheng S, Cooper T, Gomez R, Stern WA, Pichiecchio A, Caverzasi E, and Henry RG
- Subjects
- Humans, Male, Female, Adult, Reproducibility of Results, Middle Aged, Spinal Cord diagnostic imaging, Young Adult, Cervical Cord diagnostic imaging, Magnetic Resonance Imaging methods, Cervical Vertebrae diagnostic imaging
- Abstract
Background and Purpose: Spinal cord (SC) cross-sectional areas (CSAs) assessed with MRI have proven to be extremely valuable imaging markers in several diseases. Among the challenges is the delineation of vertebral levels to determine level-dependent changes in cord atrophy. With this study, we aimed to (1) test the hypothesis that there is proportionality in the position of the first six intervertebral discs and the length of the upper portion of the SC and (2) show that a proportionality approach can simplify the CSA assessment across vertebrae offering good reliability., Methods: Forty-six volunteers underwent standard T2-weighted and T1-weighted cervical SC MRI acquisitions. The distance between the obex and the intervertebral discs (from C2-C3 to T1-T2) was measured on the T2-weighted acquisitions of the entire cohort. In a test-retest experiment on 12 subjects, the % disc position values were used to define vertebral levels, and a comparison was performed with manual vertebrae assignment in terms of mean CSA and its coefficient of variation., Results: The mean upper cord length for the cohort was 144.0 ± 13.1 mm. The discs' level % position in the upper cord was found to be fairly consistent, with standard deviations of 0.8%-1.7%. The mean vertebral CSA obtained with the proportionality method was substantially equivalent to the manual approach in terms of mean CSA values and test-retest reliability., Conclusions: With this study, we propose a proportionality method for the assignment of cervical SC vertebral levels that can simplify the processing of MRI datasets in the context of CSA measurements., (© 2024 The Author(s). Journal of Neuroimaging published by Wiley Periodicals LLC on behalf of American Society of Neuroimaging.)
- Published
- 2024
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43. MEF2A is a transcription factor for circPVT1 and contributes to the malignancy of acute myeloid leukemia.
- Author
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Wu K, Li Y, Nie B, Guo C, Ma X, Li L, Cheng S, Li Y, Luo S, Zeng Y, Yu J, and Shi M
- Subjects
- Adult, Aged, Female, Humans, Male, Middle Aged, Apoptosis, Cell Line, Tumor, Cell Proliferation genetics, Cell Survival genetics, Epithelial-Mesenchymal Transition genetics, Gene Expression Regulation, Leukemic, Myeloid Cell Leukemia Sequence 1 Protein genetics, Myeloid Cell Leukemia Sequence 1 Protein metabolism, Leukemia, Myeloid, Acute genetics, Leukemia, Myeloid, Acute pathology, Leukemia, Myeloid, Acute metabolism, MEF2 Transcription Factors genetics, MEF2 Transcription Factors metabolism, MicroRNAs genetics, MicroRNAs metabolism, RNA, Circular genetics, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism
- Abstract
Acute myeloid leukemia (AML) is a hematological malignancy with a high relapse rate and a poor survival rate. The circular RNA circPVT1 and myocyte enhancer factor 2A (MEF2A) have unique functions in the progression of AML; however, the underlying mechanisms and clinical significance remain to be clarified. Bioinformatics and database analyses were used to assess the transcription factors and target genes of circPVT1. Dual‑luciferase reporter gene and argonaute 2‑RNA immunoprecipitation assays were used to verify the targeted relationships. The expression levels of related genes and proteins were detected by reverse transcription‑quantitative PCR and western blotting. Cell viability and apoptosis were detected by Cell Counting Kit‑8 assay and flow cytometry, respectively. The results revealed that circPVT1 was highly expressed in AML samples and cell lines, and that MEF2A regulated the expression of circPVT1. MEF2A overexpression promoted cell viability and epithelial‑mesenchymal transition (EMT), and inhibited cell apoptosis. In addition, circPVT1 was revealed to target the regulation of microRNA (miR)‑455‑3p, and miR‑455‑3p targeted the regulation of MCL1 expression, thus indicating that circPVT1 promoted MCL1 expression through its interaction with miR‑455‑3p. Furthermore, cells were transfected with the small interfering RNA‑(si)‑circPVT1, miR‑455‑3p inhibitor or si‑MCL1, and si‑circPVT1 and si‑MCL1 inhibited the viability and EMT of NB4 and HL‑60 cells. However, the miR‑455‑3p inhibitor had the opposite effect on cells. In conclusion, MEF2A may act as a transcription factor of circPVT1 to promote the malignant process of AML, and knockdown of circPVT1 could inhibit the viability and EMT of AML cells through the miR‑455‑3p/MCL1 axis.
- Published
- 2024
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44. "As if it were my own hand": inducing the rubber hand illusion through virtual reality for motor imagery enhancement.
- Author
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Cheng S, Liu Y, Gao Y, and Dong Z
- Subjects
- Humans, Male, Female, Young Adult, Adult, Computer Graphics, Movement physiology, Virtual Reality, Hand physiology, Brain-Computer Interfaces, Illusions physiology, Electroencephalography methods, Imagination physiology
- Abstract
Brain-computer interfaces (BCI) are widely used in the field of disability assistance and rehabilitation, and virtual reality (VR) is increasingly used for visual guidance of BCI-MI (motor imagery). Therefore, how to improve the quality of electroencephalogram (EEG) signals for MI in VR has emerged as a critical issue. People can perform MI more easily when they visualize the hand used for visual guidance as their own, and the Rubber Hand Illusion (RHI) can increase people's ownership of the prosthetic hand. We proposed to induce RHI in VR to enhance participants' MI ability and designed five methods of inducing RHI, namely active movement, haptic stimulation, passive movement, active movement mixed with haptic stimulation, and passive movement mixed with haptic stimulation, respectively. We constructed a first-person training scenario to train participants' MI ability through the five induction methods. The experimental results showed that through the training, the participants' feeling of ownership of the virtual hand in VR was enhanced, and the MI ability was improved. Among them, the method of mixing active movement and tactile stimulation proved to have a good effect on enhancing MI. Finally, we developed a BCI system in VR utilizing the above training method, and the performance of the participants improved after the training. This also suggests that our proposed method is promising for future application in BCI rehabilitation systems.
- Published
- 2024
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45. Evolutionarily conserved core microbiota as an extended trait in nitrogen acquisition strategy of herbaceous species.
- Author
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Cheng S, Gong X, Xue W, Kardol P, Delgado-Baquerizo M, Ling N, Chen X, and Liu M
- Subjects
- Biological Evolution, Plants microbiology, Plants metabolism, Soil Microbiology, Species Specificity, Quantitative Trait, Heritable, Nitrogen metabolism, Rhizosphere, Microbiota, Phylogeny
- Abstract
Microbiota have co-evolved with plants over millions of years and are intimately linked to plants, ranging from symbiosis to pathogenesis. However, our understanding of the existence of a shared core microbiota across phylogenetically diverse plants remains limited. A common garden field experiment was conducted to investigate the rhizosphere microbial communities of phylogenetically contrasting herbaceous families. Through a combination of metagenomic sequencing, analysis of plant economic traits, and soil biochemical properties, we aimed to elucidate the eco-evolutionary role of the core rhizosphere microbiota in light of plant economic strategies. We identified a conserved core microbiota consisting of 278 taxa that was closely associated with the phylogeny of the plants studied. This core microbiota actively participated in multiple nitrogen metabolic processes and showed a strong correlation with the functional potential of rhizosphere nitrogen cycling, thereby serving as an extended trait in the plant nitrogen acquisition. Furthermore, our examination of simulated species loss revealed the crucial role of the core microbiota in maintaining the rhizosphere community's network stability. Our study highlighted that the core microbiota, which exhibited a phylogenetically conserved association with plants, potentially represented an extension of the plant phenotype and played an important role in nitrogen acquisition. These findings held implications for the utilization of microbiota-mediated plant functions., (© 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.)
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- 2024
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46. Multidentate Fullerenes Enable Tunable and Robust Interfacial Bonding for Efficient Tin-Based Perovskite Solar Cells.
- Author
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Sun C, Zhang H, Cheng S, Chen J, Xing Y, Nan Z, Yang P, Wang Y, Zhao X, Xie L, Tian C, and Wei Z
- Abstract
Improving the efficiency of tin-based perovskite solar cells (TPSCs) is significantly hindered by energy level mismatch and weak interactions at the interface between the tin-based perovskite and fullerene-based electron transport layers (ETLs). In this study, four well-defined multidentate fullerene molecules with 3, 4, 5, and 6 diethylmalonate groups, labeled as FM3, FM4, FM5, and FM6 are synthesized, and employed as interfacial layers in TPSCs. It is observed that increasing the number of functional groups in these fullerenes leads to shallower lowest unoccupied molecular orbital (LUMO) energy levels and enhance interfacial chemical interactions. Notably, FM5 exhibits a suitable energy level and robust interaction with the perovskite, effectively enhancing electron extraction and defect passivation. Additionally, the unique molecular structure of FM5 allows the exposed carbon cage to be tightly stacked with the upper fullerene cage after interaction with the perovskite, facilitating efficient charge transfer and protecting the perovskite from moisture and oxygen damage. As a result, the FM5-based device achieves a champion efficiency of 15.05%, significantly surpassing that of the PCBM-based (11.77%), FM3-based (13.54%), FM4-based (14.34%), and FM6-based (13.75%) devices. Moreover, the FM5-based unencapsulated device exhibits excellent stability, maintaining over 90% of its initial efficiency even after 300 h of air exposure., (© 2024 Wiley‐VCH GmbH.)
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- 2024
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47. Combination of contact ultrasound and infrared radiation for improving the quality and flavor of air-dried beef during hot air drying.
- Author
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Gao J, Cheng S, Sun X, Bai Y, Yu X, Zeng X, Hu S, Zhang M, Yue J, Xu X, and Han M
- Subjects
- Cattle, Animals, Ultrasonic Waves, Air, Food Quality, Taste, Red Meat analysis, Food Handling methods, Hot Temperature, Infrared Rays, Desiccation methods
- Abstract
Air-dried beef, a traditional dry fermented meat product in China, whose quality is largely influenced by processing conditions. In this study, contact ultrasound (CU) and infrared radiation (IR) were employed to enhance hot air drying (HAD), with an investigation into the mechanisms underlying improvements in quality and flavor. Samples subjected to CU and IR treatments during HAD (CU-IRD) demonstrated superior color (L* = 42.68, a* = 5.05, b* = -3.86) and tenderness (140.59 N) than HAD group, primarily attributed to reduced drying times and alterations in ultrastructure. Analyses utilizing SDS-PAGE and total volatile basic nitrogen (TVB-N) revealed that HAD and CU-HAD resulted in significant protein oxidation (197.85 mg TVB-N/kg and 202.23 mg TVB-N/kg, respectively), while IR treatments were associated with increased thermal degradation of proteins, producing lower molecular weight peptides. Compared with HAD group, the activities of certain lipases and proteases were enhanced by ultrasound and infrared treatments, leading to the release of greater amounts of free fatty acids and flavor amino acids. Furthermore, the thermal effects of infrared and the cavitation effects of ultrasound contributed to increased fat oxidation, amino acid Strecker degradation, and esterification reactions, thereby augmenting the diversity and concentration of volatile flavor compounds, including alkanes, ketones, aldehydes, and esters. These findings indicate that the synergistic application of CU and IR represents a promising strategy for enhancing the quality of air-dried beef., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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48. One-pot enantioselective synthesis of chiral phenyllactic acids by combining stereocomplementary d- and l-lactate dehydrogenases with multi-enzyme expression fine-tuning.
- Author
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Chen Q, Cheng S, Zhang X, Zhang S, Zhou X, Jia Z, and Hao J
- Subjects
- Stereoisomerism, L-Lactate Dehydrogenase metabolism, L-Lactate Dehydrogenase chemistry, L-Lactate Dehydrogenase genetics, Formate Dehydrogenases metabolism, Formate Dehydrogenases chemistry, Formate Dehydrogenases genetics, Lactate Dehydrogenases, Escherichia coli genetics, Lactates chemistry
- Abstract
Chiral phenyllactic acid (PLA) is a new type of antiseptic agent and a valuable precursor for active ingredients in pharmaceuticals and agrochemicals. In this study, we designed a multi-enzyme cascade that combined stereocomplementary d- and l-lactate dehydrogenases with threonine aldolase, phenylserine dehydratase, and formate dehydrogenase for the one-pot conversion of achiral glycine and benzaldehyde to synthesize d-PLA and l-PLA. To overcome the imbalance of multi-enzymes in a single cell, two enzyme modules, overexpressing four enzymes, were assembled in Escherichia coli cells to construct whole-cell catalysis systems (WCCSs). Furthermore, by optimizing reaction conditions and components, recombinant E. coli (WCCS 26) was able to produce 100 mM d-PLA with >99 % ee using a fed-batch strategy, while E. coli (WCCS 60) produced 47.2 mM l-PLA with >99 % ee. This study presents a sustainable and efficient method for synthesizing chiral PLAs from food-grade achiral starting materials., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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49. Opposing sequential biases in direction and time reproduction: Influences of task relevance and working memory.
- Author
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Cheng S, Chen S, and Shi Z
- Subjects
- Humans, Female, Male, Adult, Young Adult, Motion Perception physiology, Memory, Short-Term physiology, Time Perception physiology, Cues
- Abstract
Our current perception and decision-making are shaped by recent experiences, a phenomenon known as serial dependence. While serial dependence is well-documented in visual perception and has been recently explored in time perception, their functional similarities across non-temporal and temporal domains remain elusive, particularly in relation to task relevance and working memory load. To address this, we designed a unified experimental paradigm using coherent motion stimuli to test both direction and time reproduction. The direction and time tasks were randomly mixed across trials. Additionally, we introduced pre-cue versus post-cue settings in separate experiments to manipulate working memory load during the encoding phase. We found attractive biases in time reproduction but repulsive biases in direction estimation. Notably, the temporal attraction was more pronounced when the preceding task was also time-related. In contrast, the direction repulsion remained unaffected by the nature of the preceding task. Additionally, both attractive and repulsive biases were enhanced by the post-cue compared to the pre-cue. Our findings suggest that opposing sequential effects in non-temporal and temporal domains may originate from different processing stages linked to sensory adaptation and post-perceptual processes involving working memory., (© 2024 The Author(s). British Journal of Psychology published by John Wiley & Sons Ltd on behalf of The British Psychological Society.)
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- 2024
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50. The impact of task measurements on sequential dependence: a comparison between temporal reproduction and discrimination tasks.
- Author
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Cheng S, Chen S, Yang X, and Shi Z
- Subjects
- Humans, Female, Male, Adult, Young Adult, Discrimination, Psychological physiology, Cues, Psychomotor Performance physiology, Judgment physiology, Decision Making physiology, Time Perception physiology
- Abstract
Decisions about a current stimulus are influenced by previously encountered stimuli, leading to sequential bias. However, the specific processing levels at which serial dependence emerges remain unclear. Despite considerable evidence pointing to contributions from perceptual and post-perceptual processes, as well as response carryover effects impacting subsequent judgments, research into how different task measurements affect sequential dependencies is limited. To address this gap, the present study investigated the role of task type in shaping sequential effects in time perception, employing a random-dot kinematogram (RDK) in a post-cue paradigm. Participants had to remember both the duration and the direction of the RDK movement and perform the task based on a post-cue, which was equally likely to be direction or duration. To delineate the task type, we employed the temporal bisection task in Experiment 1 and the duration reproduction task in Experiment 2. Both experiments revealed a significant sequential bias: durations were perceived as longer following longer previous durations, and vice versa. Intriguingly, the sequential effect was enhanced in the reproduction task following the same reproduction task (Experiment 2), but did not show significant variation by the task type in the bisection task (Experiment 1). Moreover, comparable response carryover effects were observed across two experiments. We argue that the differential impacts of task types on sequential dependence lies in the involvement of memory reactivation process in the decision stage, while the post-decision response carryover effect may reflect the assimilation by subjective, rather than objective, durations, potentially linking to the sticky pacemaker rate and/or decisional inertia., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
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