286 results on '"Mei Lu"'
Search Results
2. Fc-empowered exosomes with superior epithelial layer transmission and lung distribution ability for pulmonary vaccination.
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Fan Meng, Haonan Xing, Jingru Li, Yingqi Liu, Li Tang, Zehong Chen, Xiran Jia, Zenglin Yin, Jing Yi, Mei Lu, Xiuli Gao, and Aiping Zheng
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- 2024
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3. Schwann cell-derived exosomes ameliorate peripheral neuropathy induced by ablation of dicer in Schwann cells.
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Lei Wang, XueRong Lu, Szalad, Alexandra, Xian Shuang Liu, Yi Zhang, Xinli Wang, Golembieski, William Anthony, Powell, Brianna, Mccann, Mikkala, Mei Lu, Chopp, Michael, and Zheng Gang Zhang
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SCIATIC nerve diseases ,GENE expression ,SCIATIC nerve ,PERIPHERAL neuropathy ,TRANSGENIC mice - Abstract
Background: MicroRNAs (miRNAs) in Schwann cells (SCs) mediate peripheral nerve function. Ablating Dicer, a key gene in miRNA biogenesis, in SCs causes peripheral neuropathy. Exosomes from healthy SCs (SC-Exo) ameliorate diabetic peripheral neuropathy in part via miRNAs. Thus, using transgenic mice with conditional and inducible ablation of Dicer in proteolipid protein (PLP) expressing SCs (PLP-cKO), we examined whether SC-Exo could reduce peripheral neuropathy in PLP-cKO mice. Methods: PLP-cKO mice at the age of 16 weeks (8 week post-Tamoxifen) were randomly treated with SC-Exo or saline weekly for 8 weeks. Age-and sex-matched wild-type (WT) littermates were used as controls. Peripheral neurological functions, sciatic nerve integrity, and myelination were analyzed. Quantitative RT-PCR and Western blot analyses were performed to examine miRNA and protein expression in sciatic nerve tissues, respectively. Results: Compared to the WT mice, PLP-cKO mice exhibited a significant decrease in motor and sensory conduction velocities, thermal sensitivity, and motor coordination. PLP-cKO mice exhibited substantial demyelination and axonal damage of the sciatic nerve. Treatment of PLP-cKO mice with SC-Exo significantly ameliorated the peripheral neuropathy and sciatic nerve damage. PLP-cKO mice showed a substantial reduction in a set of Dicer-related miRNAs known to regulate myelination, axonal integrity, and inflammation such as miR-138, -146a and - 338 in the sciatic nerve. In addition, PLP-cKO mice exhibited significant reduction of myelin forming proteins, early growth response 2 (EGR2) and sex determining region Y-box10 (Sox10), but significantly increased myelination inhibitors, Notch1, c-Jun, and Sox2 and the axonal growth inhibitor phosphatase and tens in homolog (PTEN). However, SC-Exo treatment reversed the PLP-cKO altered miRNAs and proteins. Conclusion: This study demonstrates that exogenous SC-Exo ameliorate peripheral neuropathy induced by Dicer ablation in PLP expressing SCs. The therapeutic benefit may be mediated by the SC-Exo altered miRNAs and their targeted genes. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Training of spatial cognitive abilities reduces symptoms of visually induced motion sickness.
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Fan Wang, Shuai Pan, Xiao-wen Li, Jia-mei Lu, Chuan-jing Qiu, Meng-hang Jiang, Zhan-guo Jin, and Sheng-guang Yan
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SPATIAL ability ,COGNITIVE ability ,MOTION sickness ,COGNITIVE training ,COGNITIVE testing ,MENTAL rotation - Abstract
Purpose: This study aims to explore the effectiveness of enhancing individual spatial cognitive abilities in alleviating the negative symptoms of visually induced motion sickness (VIMS). Additionally, it seeks to develop innovative intervention methods to improve spatial cognition and identify new treatment approaches for VIMS. Methods: The study investigated the impact of innovative interventions on spatial cognitive abilities and their modulation of VIMS susceptibility. A total of 43 participants were recruited (23 in the experimental group and 20 in the control group). The experimental group underwent six sessions of spatial cognitive ability training, while the control group engaged in activities unrelated to spatial cognition. Results: The analysis revealed that the spatial cognitive ability scores of the experimental group significantly improved after the intervention. Furthermore, the experimental group exhibited significant differences in nausea, oculomotor, disorientation, and total SSQ scores before and after the intervention, indicating that the intervention effectively mitigated VIMS symptoms. Conclusion: This study developed a virtual reality training method that effectively enhances individual spatial cognitive abilities and significantly alleviates VIMS symptoms, providing a novel and effective approach for VIMS intervention and treatment. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Effect of administration routes of oxytocin on hemoglobin in neonates with delayed umbilical cord clamping: a multi-centre randomized controlled clinical trial.
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Mei, Lu, Gu, Ning, Zhou, Yan, Wang, Zhiqun, Yang, Ling, Chen, Li, Li, Chunxia, and Dai, Yimin
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UMBILICAL cord clamping ,CLINICAL trials ,OXYTOCIN ,RANDOMIZED controlled trials ,NEONATAL intensive care units ,HEMOGLOBINS - Abstract
Purpose: To evaluate the effect of intravenous infusion versus intramyometrial injection of oxytocin on hemoglobin levels in neonates with delayed umbilical cord clamping during cesarean section. Methods: The multi-centre randomized controlled trial was performed at three hospitals from February to June 2023. Women with term singleton gestations scheduled for cesarean delivery were allocated to receive an intravenous infusion of 10 units of oxytocin or a myometrial injection of 10 units of oxytocin during the surgery. The primary outcome was neonatal hemoglobin at 48 to 96 h after birth. Secondary outcomes were side-effects of oxytocin, postpartum haemorrhage, phototherapy for jaundice, feeding at 1 month, maternal and neonatal morbidity and re-admissions. Results: A total of 360 women were randomized (180 women in each group). The mean neonatal hemoglobin did not show a significant difference between the intravenous infusion group (194.3 ± 21.7 g/L) and the intramyometrial groups (195.2 ± 24.3 g/L) (p = 0.715). Secondary neonatal outcomes, involving phototherapy for jaundice, feeding at 1 month and neonatal intensive care unit admission were similar between the two groups. The maternal outcomes did not differ significantly between the two groups, except for a 200 mL higher intraoperative infusion volume observed in the intravenous group compared to the intramyometrial group. Conclusion: Among women undergoing elective cesarean delivery of term singleton pregnancies, there was no significant difference in neonatal hemoglobin at 48 to 96 h after birth between infants with delayed cord clamping, whether the oxytocin was administrated by intravenous infusion or intramyometrial injection. Trial registration: Chinese Clinical trial registry: ChiCTR2300067953 (1 February 2023). [ABSTRACT FROM AUTHOR]
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- 2024
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6. Dual PI3K/mTOR Inhibitor BEZ235 combined with BMS-1166 Promoting Apoptosis in Colorectal Cancer.
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Xueke Liu, Wei Xu, Lele Li, Zhenyong Zhang, Mei Lu, and Xiaoping Xia
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- 2024
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7. Influence of maternal body mass index on pregnancy complications and outcomes: a systematic review and meta-analysis.
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Yi Zhang, Mei Lu, Ying Yi, Luming Xia, Renjun Zhang, Chao Li, and Ping Liu
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PREGNANCY complications ,PREGNANCY outcomes ,BODY mass index ,GESTATIONAL diabetes ,OBESITY in women ,PREGNANCY ,WEIGHT gain - Abstract
Background: The prevalence of obesity among women of reproductive age is increasing worldwide, with implications for serious pregnancy complications. Methods: Following PRISMA guidelines, a systematic search was conducted in both Chinese and English databases up to December 30, 2020. Pregnancy complications and outcomes including gestational diabetes mellitus (GDM), gestational hypertension (GHTN), pre-eclampsia, cesarean section (CS), induction of labor (IOL), and postpartum hemorrhage (PPH) were analyzed. Random-effects or fixed-effects models were utilized to calculate the odds ratio (OR) with 95% confidence intervals (CIs). Results: Women with overweight and obesity issues exhibited significantly higher risks of GDM (OR, 2.92, 95%CI, 2.18-2.40 and 3.46, 95%CI, 3.05-3.94, respectively) and GHTN (OR, 2.08, 95%CI, 1.72-2.53 and 3.36, 95%CI, 2.81-4.00, respectively) compared to women of normal weight. Pre-eclampsia was also significantly higher in women with overweight or obesity, with ORs of 1.70 (95%CI, 1.44-2.01) and 2.82 (95%CI, 2.66-3.00), respectively. Additionally, mothers with overweight or obesity issues had significantly higher risks of CS (OR, 1.44, 95%CI, 1.41-1.47, and 2.23, 95%CI, 2.08-2.40), IOL (OR, 1.33, 95%CI, 1.30-1.35 and 1.96, 95%CI, 1.85-2.07), and PPH (OR, 1.67, 95%CI, 1.42-1.96 and 1.88, 95%CI, 1.55-2.29). Conclusion: Women with overweight or obesity issues face increased risks of pregnancy complications and adverse outcomes, indicating dosedependent effects. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Methylated derivatives of polycyclic aromatic hydrocarbons in road dust, green belt soil and parking lot dust: occurrence, spatial distribution and emission sources.
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Jin-Nong Li, Ye Zhang, Jian-Xin Wang, Jie Hu, Xi-Mei Lu, Wen-Xi Xie, Zi-Feng Zhang, and Zhong-Hua Tang
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Convenient transportation facilities not only bring the higher standard of living to big cities, but also bring some environmental pollution problems. In order to understand the presence and sources of methylated polycyclic aromatic hydrocarbons (Me-PAHs) in environmental samples and their association with total organic carbon (TOC), 49 Me-PAHs were analyzed in road dust, green belt soil and parking lot dust samples in Harbin. The results showed that the ranges of the total Me-PAHs (ΣMe-PAHs) content in road dust were 221–5826 ng/g in autumn and 697–7302 ng/g in spring, and those in green belt soil were 170–2509 ng/g and 155–9215 ng/g in autumn and spring, respectively. And ΣMe-PAHs content in parking lot dust ranged from 269 to 2515 ng/g in surface parking lots and from 778 to 10,052 ng/g in underground parking lots. In these samples, the composition profile of Me-PAHs was dominated by 4-ring Me-PAHs. The results of diagnostic ratios and principal component analysis (PCA) indicated that petrogenic and pyrogenic sources were the main sources of Me-PAHs in the samples. Spearman correlation analysis showed that there was no correlation for Me-PAHs in road dust and green belt soil on the same road. Furthermore, there was a significant positive relationship (0.12 ≤ R
2 ≤ 0.67, P < 0.05) between Me-PAHs concentrations and the TOC content. This study demonstrated the presence of Me-PAHs with high concentrations in the road environment samples of Harbin. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Associations between single and multiple dietary vitamins and the risk of periodontitis: results from NHANES 2009-2014.
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Feizhao Liang, Mei Lu, and Yanping Zhou
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- 2024
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10. The accumulation of active ingredients of Polygonatum cyrtonema Hua is associated with soil characteristics and bacterial community.
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Qingyou Zhang, Yunzhang Cai, Luping Zhang, Mei Lu, Luyun Yang, Dekai Wang, and Qiaojun Jia
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ENDOPHYTIC bacteria ,BACTERIAL communities ,RHIZOBACTERIA ,PEARSON correlation (Statistics) ,SOIL microbiology ,SOILS - Abstract
Introduction: With the increasing demand for health products derived from Polygonati rhizoma (PR), people begin to artificially plant Polygonatum cyrtonema Hua (P. cyrtonema) in the middle and lower reaches of the Yangtze River. To promote P. cyrtonema cultivation and increase farmers' income, efforts are needed to understand the ways to obtain high-quality PR under artificial cultivation conditions. Methods: Rhizomes of artificial planting P. cyrtonema and rhizosphere soils were collected across five regions in Zhejiang Province, China. Subsequently, the contents of the main active ingredients of P. cyrtonema and soil properties were analyzed, and both rhizosphere and endophytic bacteria of P. cyrtonema were detected by 16S rDNA sequencing. The relationship between the active ingredients and soil properties, and the dominant bacteria were investigated by correlation analysis. Results: The content of active ingredients of P. cyrtonema from the five regions varied significantly, especially polysaccharides and saponins. High-throughput sequencing demonstrated that Proteobacteria was the dominant bacterial phylum in all samples, and Burkholderia-Caballeronia-Paraburkholderia was the main endophytic bacterial genus in rhizome. In addition, the bacterial diversity and richness of rhizosphere soil samples were higher than those of rhizome samples. Soil physicochemical properties and enzyme activities were significantly different across regions, leading to notable variations in the community structures of rhizosphere and endophytic bacteria. Redundancy analysis (RDA) displayed that pH and urease (UE) were the major factors altering shifting rhizosphere bacteria community structure. Moreover, the composition and diversity of rhizome endophytic bacteria were principally affected by both soil physicochemical properties and soil enzyme activities. Soil properties and bacteria from rhizosphere soil and rhizome had a considerable impact on certain active ingredients in P. cyrtonema under artificial cultivation conditions after Pearson correlation analysis. Polysaccharides were significantly correlated with nutrient-rich soil and endophytic bacteria, such as Burkholderia-Caballeronia-Paraburkholderia, Pseudomonas, Ralstonia, and Bacillus. However, flavonoids were associated with nutrient-poor soil. Saponins were positively correlated with OM and available phosphorous (AP) and were significantly negatively affected by rhizosphere bacterial communities Conclusion: The study demonstrated that bacterial microorganisms were involved in the accumulation of active ingredients of P. cyrtonema together with soil physicochemical properties and enzyme activities, which provided a theoretical basis for the scientific and effective artificial cultivation of highquality P. cyrtonema. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Dyslipidemia may impact initial recovery following arthroscopic rotator cuff repair: a retrospective study.
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Yao, Lei, Zhao, Xiumei, Mei, Lu, Li, Yinghao, Pang, Long, Zhang, Chunsen, Li, Jian, and Tang, Xin
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PREOPERATIVE period ,HYPERLIPIDEMIA ,RESEARCH funding ,ARTHROSCOPY ,POSTOPERATIVE pain ,PROBABILITY theory ,FUNCTIONAL status ,RETROSPECTIVE studies ,MAGNETIC resonance imaging ,DESCRIPTIVE statistics ,ROTATOR cuff ,LONGITUDINAL method ,ROTATOR cuff injuries ,CONVALESCENCE ,HEALTH outcome assessment ,RANGE of motion of joints ,DISEASE complications - Abstract
Background: The current literature shows that dyslipidemia can lead to a higher incidence of rotator cuff tears (RCTs) and an increased retear rate after repair. We aimed to evaluate the influence of preoperative dyslipidemia on postoperative pain, patient-reported outcomes (PROs), active range of motion (ROM), and structural integrity. Methods: A cohort of 111 patients who underwent arthroscopic RCT repair between January 2021 and July 2022, and whose complete preoperative serum lipid data were available within one week prior to surgery was retrospectively reviewed. Dyslipidemia was defined as the presence of an increase or decrease in at least one blood lipid profile (triglycerides, total cholesterol, low-density lipoprotein, high-density lipoprotein, or non-high-density lipoprotein). There were 43 patients in the dyslipidemia group and 68 in the ortholiposis group. Patient evaluations, including pain score, PROs, and ROMs, were conducted preoperatively; at 3 and 6 months postoperatively; and at the last follow-up. Structural integrity was assessed by magnetic resonance imaging (MRI) 6 months after surgery if possible, and Sugaya type 4 or 5 was considered a retear. Propensity score matching (PSM) was used to reduce bias. Results: The RCT size, surgical technique, preoperative pain status, PROs, and active ROM were comparable between patients with dyslipidemia and those with ortholiposis. Three months after surgery, patients in the dyslipidemia group had worse average PROs (Constant score: P = 0.001; ASES score: P = 0.012; UCLA score: P = 0.015), forward flexion (P = 0.012), and internal rotation (P = 0.001) than patients in the ortholiposis group did. The difference between the two groups persisted after PSM but disappeared at the sixth month after surgery. No significant differences in pain score, PROs, or active ROMs were detected between the dyslipidemia and ortholiposis groups after a mean follow-up of 24 months. Of the 72 patients who underwent MRI, 4 retears (5.6%) were found, and all were in the ortholiposis group. There was no difference in the rate of retears between the two groups (P = 0.291) or with (P = 0.495) PSM. Conclusions: In conclusion, we found that perioperative dyslipidemia may impact initial recovery within the first 3 months following arthroscopic rotator cuff repair but may have no effect on pain, PROs, or active ROMs at a mean 2-year follow-up or rotator cuff integrity at 6 months postoperatively. Trail registration Retrospectively registered. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Causal association between genetically predicted circulating immune cell counts and frailty: a two-sample Mendelian randomization study.
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Xiao-Guang Guo, Ya-Juan Zhang, Ya-Xin Lu, Jia-Mei Lu, Jie Zhang, Hui-Xin Li, Chao-Jin Chen, and Jian-Jun Yang
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FRAILTY ,GENOME-wide association studies ,LEUKOCYTE count ,RHEUMATOID arthritis ,GENETIC variation - Abstract
Background: Despite the recognized link between immune responses and frailty, the association between immune cell counts and frailty based on previous observational studies remains disputed, with uncertain causal nexus. This study aimed to elucidate causal association between genetically predicted circulating immune cell counts and frailty. Methods: We conducted the two-sample Mendelian randomization (MR) study with independent genetic variants associated with six immune cell subtype counts from genome-wide association studies in 563,946 European individuals. Frailty summary data, assessed via frailty index (FI), was obtained from study comprising 175,226 subjects. Univariate MR, reverse MR and multivariate MR were conducted to comprehensive investigate the association between immune cell counts and FI, with two-step MR analysis for mediation analysis. Results: Univariate MR evidence indicated that among six leukocyte subtype counts, only elevated eosinophil count was significantly correlated with higher FI (β = 0.059, 95% confidence interval [CI], 0.042-0.078, P=5.63E-11), with no reverse causal relationship identified in reverse MR. In multivariate MR, the causal effect of eosinophil count retained statistical significance (β = 0.063, 95% CI, 0.021-0.104, P = 0.003). Ultimately, the two-step MR analysis demonstrated two mediators in this causal pathway: asthma (β= 0.019, 95% CI, 0.013-0.025, P = 35.84E-10, mediated proportion, 31.732%) and rheumatoid arthritis (β= 0.004, 95% CI, 0.001-0.006, P=1.75E-03, mediated proportion, 6.411%). Conclusions: Within immune cell subtypes, MR evidence indicated only genetically predicted circulating eosinophil count had irreversible and independent causal effect on frailty, with asthma and rheumatoid arthritis possibly serving as partial mediators. The finding stressed the need for further exploring physiological functions of eosinophils in order to develop effective strategies against frailty. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Persistent pruritus associated with worse quality of life in patients with chronic hepatitis.
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Mei Lu, Rupp, Loralee B., Melkonian, Christina, Trudeau, Sheri, Daida, Yihe G., Schmidt, Mark A., and Gordon, Stuart C.
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ITCHING ,CHRONIC active hepatitis ,QUALITY of life ,CHRONIC hepatitis B ,VIRAL hepatitis ,MENTAL health - Abstract
Introduction: Prevalence and severity of pruritus among US patients with chronic hepatitis B and C (HBV, HCV) are not well-documented. Chronic Hepatitis Cohort Study (CHeCS) patients were surveyed to examine pruritus prevalence and impact on quality of life (QoL). Methods: Patients who reported experiencing pruritus ≥3 on a Numeric Rating Scale (NRS) within the past 30 days were invited to participate in a 6-month study using the SF-36 questionnaire. General regression (univariate followed by multivariable modelling) was used to analyse pruritus intensity and eight QoL dimensions. Results: Among 1654 patients (HBV = 358, HCV = 1296, HBV/HCV = 6), pruritus prevalence was significantly higher among patients with HCV than those with HBV (44% vs. 35%; p < .05). One hundred and twenty-three patients (21 HBV and 102 HCV) participated in the QoL study (72% ≥60 years; 50% men; 25% Black; 37% with cirrhosis; 66% had BMI > 25). Mean NRS was 4.9--5.3. QoL responses for social functioning and emotional well-being were higher (70--72 points) than responses for energy/fatigue (50--51). Antiviral treatment rates were higher in HCV (92%, SVR 99%) than HBV (71% ever, 43% ongoing). Multivariable analyses showed no significant effect of hepatitis type or antiviral treatments on itch. Antihistamines were associated with severe itch. Higher NRS was associated with significantly reduced QoL. Each unit increase in NRS was associated with a 2--3 unit decline in emotional well-being, general health, physical function, energy/fatigue, social functioning and emotional health. Conclusion: Pruritus negatively affects many viral hepatitis patients, regardless of antiviral treatment status. Improved treatment options are needed to address its impact on QoL. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Hydrothermal apatite as a robust U–Th–Pb chronometer for the Carlin-type gold deposits in the Youjiang basin, SW China.
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Gao, Wei, Hu, Ruizhong, Huang, Yong, Zhu, Jingjing, Li, Qiuli, Mei, Lu, Bi, Xianwu, and Liu, Jianzhong
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SECONDARY ion mass spectrometry ,GOLD ores ,APATITE ,CHRONOMETERS ,GOLD ,FLUID inclusions - Abstract
The formation of Carlin-type gold deposits is poorly constrained, mainly due to the lack of accurate ages for gold mineralization. The Youjiang basin, SW China, represents the world's second-largest Carlin-type gold province after NV, USA. In this paper, we use hydrothermal apatite U–Th–Pb dating to systemically determine the mineralization ages of five Carlin-type gold deposits, namely, Shuiyindong, Jinfeng, Zimudang, Linwang, and Jinya, in the Youjiang basin. The hydrothermal apatite is characterized by intimate intergrowth with gold-bearing sulfides, presence of primary fluid inclusions, irregular morphology and cathodoluminescence zoning, and MREE-enriched composition patterns, indicating that it is clearly associated and coeval with gold mineralization. The concentrations of lattice-bound U and Th in the apatite are highly variable, making it suitable for in situ secondary ion mass spectrometry (SIMS) U–Th–Pb dating. The dating results of hydrothermal apatite from the five deposits show that they formed at ca. 150–140 Ma, contemporary with the widespread felsic magmatism and associated W–Sn mineralization to the east of the Youjiang basin, probably in response to slab breakup of the Paleo-Pacific oceanic plate beneath the South China continental plate. Our case story suggests that hydrothermal apatite could be a robust chronometer for age dating of sedimentary rock-hosted gold mineralization worldwide. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Treatment of stroke in aged male and female rats with Vepoloxamer and tPA reduces neurovascular damage.
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Li Zhang, Hao Luo, Chao Li, Hua Teng, Powell, Brianna, Mei Lu, Chopp, Michael, and Zheng Gang Zhang
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THROMBOLYTIC therapy ,STROKE ,ISCHEMIC stroke ,TISSUE plasminogen activator ,REPERFUSION injury ,RATS ,LABORATORY rats - Abstract
Stroke is a leading cause of death and disability worldwide, mainly affecting the elderly. Unfortunately, current treatments for acute ischemic stroke warrant improvement. To date, tissue plasminogen activator (tPA) is of limited use in stroke patients mainly due to its narrow therapeutic window and potential for hemorrhagic complication. The adjuvant treatment with Vepoloxamer, a purified amphipathic polymer has been shown to enhance the thrombolytic efficacy of tPA treatment in young adult male rats after embolic stroke. However, most stroke patients are aged; therefore, the current study investigated the therapeutic effect of the combined tPA and Vepoloxamer treatment in aged male and female rats subjected to embolic stroke. Methods: Male and female Wistar rats at 18 months of age were subjected to embolic middle cerebral artery occlusion and treated either with monotherapy of tPA or Vepoloxamer, a combination of these two agents, or saline at 4 h after stroke onset. Neurological outcomes were evaluated with a battery of behavioral tests including adhesive removal, foot-fault, and modified neurological severity score tests at 1 and 7 days after stroke onset, followed by histopathological analysis of infarct volume. Residual clot size and vascular patency and integrity were analyzed. Results: The combination treatment with Vepoloxamer and tPA significantly reduced infarct volume and neurological deficits in male and female rats compared to rats treated with saline and the monotherapies of tPA and Vepoloxamer. While Vepoloxamer monotherapy moderately reduced neurological deficits, monotherapies with tPA and Vepoloxamer failed to reduce infarct volume compared to saline treatment. Furthermore, the combination treatment with tPA and Vepoloxamer accelerated thrombolysis, reduced ischemia and tPA-potentiated microvascular disruption, and concomitantly improved cerebrovascular integrity and perfusion in the male ischemic rats. Conclusion: Combination treatment with tPA and Vepoloxamer at 4 h after stroke onset effectively reduces ischemic neurovascular damage by accelerating thrombolysis and reducing ischemia and tPA potentiated side effects in the aged rats. This funding suggests that the combination treatment with tPA and Vepoloxamer represents a promising strategy to potentially apply to the general population of stroke patients. [ABSTRACT FROM AUTHOR]
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- 2023
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16. Cellular Evidence for Telocytes Mediating Electroacupuncture to Ameliorate Obesity in Mice.
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Mei, Lu, Zhu, Qianmei, Bai, Xuebing, Zhang, Yingxin, Huang, Haixiang, Yang, Min, Shi, Yonghong, Liang, Chunhua, Zhang, Zhenwei, and Chen, Qiusheng
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- 2023
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17. Numerical Simulation of CO2 Used for Slag Splashing Process in Converter.
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Zhang, Han, Yuan, Zhang-fu, Zhao, Hong-xin, Xu, Bing-sheng, Liu, Ke, Mei, Lu, and Ma, Bo-wen
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COMPUTER simulation ,TECHNOLOGICAL innovations ,TURBULENT flow ,TURBULENCE ,STEEL industry ,SLAG ,TRACE gases - Abstract
Utilizing CO2 for the slag splashing process presents a novel approach that enhances CO2 utilization in the steel industry and promotes efficient slag splashing. Herein, numerical simulation is employed to investigate the kinetic feasibility of this technique on a 100 t converter. The volume of fluid (VOF) model is utilized to trace the gas–slag interface, while the standard k–ε model is selected to describe the turbulent flow of each phase. Initially, the model is validated via isentropic theory and experimental data. Subsequently, the effects of gas and oxygen lance replacement are evaluated. The results indicate that employing CO2 solely instead of N2 leads to a reduction in jet velocity and slag mass flow rates at different positions. However, the utilization of the innovative oxygen lance slows down the jet decay and increases the slag mass flow rate at various heights and sidewalls, except for the lower cone, resulting in a satisfactory slag splashing performance. The present study verifies the feasibility of this new technology and its potential to contribute to CO2 reduction in the industry positively. [ABSTRACT FROM AUTHOR]
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- 2023
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18. Effects of partial substitution of chemical fertilizer with organic manure on the activity of enzyme and soil bacterial communities in the mountain red soil.
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Zerang Lu, Yun Zhou, Yongmei Li, Chunpei Li, Mei Lu, Xuemei Sun, Zhizhang Luo, Jixia Zhao, and Maopan Fan
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RED soils ,MOUNTAIN soils ,ORGANIC fertilizers ,BACTERIAL enzymes ,BACTERIAL communities - Abstract
Introduction: The partial substitution of chemical fertilizer with organic manure takes on a critical significance to enhancing soil quality and boosting sustainable agricultural development. However, rare research has studied the effects of partial substitution of chemical fertilizer with organic manure on soil bacterial community diversity and enzyme activity in maize field in the mountain red soil region of Yunnan. Methods: In this study, four treatments were set up in which chemical fertilizer (the application rates of N, P
2 O5 and K2 O were 240, 75 and 75 kg·ha-1 , respectively) was substituted by 10% (M10), 20% (M20), 30% (M30) and 40% (M40) of organic manure with equal nitrogen, as well as two control treatments of single application of chemical fertilizer (M0) and no fertilization (CK). The maize (Zea mays L.) crop was sown as a test crop in May 2018. The effects of partial substitution of chemical fertilizer with organic manure on soil physicochemical properties, soil bacterial community diversity and enzyme activity were studied. Results: The activities of Cellulase (CBH), Invertase (INV) and β-glucosidase (BG) increased with the increase of organic manure substitution ratio. The activities of ß-1,4-N-acetylglucosaminidase (NAG), Urease (URE), and leucine aminopeptidase (LAP) also had the same trend, but the highest activities were 159.92 mg·g-1 ·h-1 , 66.82 mg·g-1 ·h-1 and 143.90 mg·g-1 ·h-1 at 30% substitution ratio. Compared with CK and M0 treatments, Shannon index increased notably by 82.91%-116.74% and 92.42%-128.01%, respectively, at the organic manure substitution ratio ranging from 10% to 40%. Chao1 and ACE index increased significantly at the organic manure substitution ratio ranging from 10% to 30%. Proteobacteria was the dominant phylum in all treatments, the relative abundance of Proteobacteria decreased as the organic manure substitution ratio increased. Redundancy analysis showed that microbial biomass C was the main factor affecting the bacterial community composition under partial replacement of chemical fertilizer treatment, while Actinobacteria was the main factor affecting the enzyme activity. In addition, the maize yield of M30 and M40 treatments was significantly higher than that of CK and M0-M20 treatments, and the yield of M30 treatment was the highest, reaching 7652.89 kg·ha-1 . Conclusion: Therefore, the partial substitution of chemical fertilizer with organic manure can improve soil biological characteristics, while increasing bacterial community diversity and soil enzyme activity. Therefore, a thirty percent organic manure substitution was determined as the optimal substitution ratio for maize farmland in the mountain red soil area of Yunnan, China. [ABSTRACT FROM AUTHOR]- Published
- 2023
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19. Comprehensive codon usage analysis of the African Swine Fever Virus.
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Mhozya Kanyema, Makoye, Mingyang Cheng, Jiawei Luo, Mei Lu, Xinyuan Xing, Yu Sun, Junhong Wang, Yiyuan Lu, Chunwei Shi, Yan Zeng, Guilian Yang, Xin Cao, and Chunfeng Wang
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AFRICAN swine fever ,AFRICAN swine fever virus ,CLASSICAL swine fever ,NATURAL selection ,GENETIC drift ,MOLECULAR evolution ,VIRUS diseases - Abstract
The non-uniform usage of synonymous codons occurs in genomes of all organisms, including DNA and RNA viruses. The preferential selection of a codon at the expense of other synonymous codons within the same group is known as Codon Usage Bias. The understanding of this bias assists in unveiling the factors driving molecular evolution, as defined by the selection-mutationdrift theory. According to this model, molecular evolution is predominantly driven by mutation, natural selection, and genetic drift. Nevertheless, elements like nucleotide composition, gene length, and protein secondary structure also contribute to this process. Comprehensive genomic analyses that highlight the codon usage preference of the African Swine Fever Virus (ASFV) are infrequent. ASFV, a hemorrhagic and highly contagious viral disease, almost invariably results in 100% fatality among infected pigs and wild boars. This study, therefore, embarked on a thorough examination of codon usage patterns in ASFV's complete genomic sequences, an endeavor of great relevance to molecular evolution studies, complex transmission models, and vaccine research. For an exhaustive evaluation of ASFV's whole-genome codon usage, we used parameters like ENC, RSCU, and CAI. A Principal Component Analysis was carried out to reaffirm the interconnected RSCU lineages based on the continent, and their evolutionary relationships were later elucidated through phylogenetic tree construction. ASFV emerged as a low-biased codon user (ENC = 52.8) that is moderately adapted to its host. Its genome has a high AT composition (64.05%), suggesting the impact of mutational pressure on genomic evolution. However, neutrality plot analysis revealed natural selection's slight supremacy over mutational pressure. The low codon bias (>45) implies ASFV's diverse usage of synonymous codons within a given codon family, allowing for effective translation and subsequent successful viral replication cycles. Its moderate. [ABSTRACT FROM AUTHOR]
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- 2023
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20. The Potential of Berberine to Target Telocytes in Rabbit Heart.
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Yang, Min, Yang, Tong, Mei, Lu, Zhang, Yingxing, Liang, Chunhua, Bai, Xuebing, Zhang, Zhenwei, Shi, Yonghong, and Chen, Qiusheng
- Subjects
STATISTICS ,CELL culture ,STAINS & staining (Microscopy) ,ALKALOIDS ,HEART ,ANIMAL experimentation ,SCANNING electron microscopy ,IMMUNOHISTOCHEMISTRY ,CELL membranes ,WESTERN immunoblotting ,ONE-way analysis of variance ,CARDIOVASCULAR diseases ,RABBITS ,HEALTH outcome assessment ,CYTOSKELETAL proteins ,STROMAL cells ,ELECTRON microscopy ,T-test (Statistics) ,FLUORESCENT antibody technique ,DESCRIPTIVE statistics ,RESEARCH funding ,MOLECULAR structure ,CELL separation ,DATA analysis software ,DATA analysis - Abstract
A brand-new class of interstitial cells, called telocytes, has been detected in the heart. Telocytes can connect and transmit signals to almost all cardiomyocytes; this is highly interrelated with the occurrence and development of heart diseases. Modern studies have shown that berberine has a therapeutic effect on cardiovascular health. However, berberineʼs mechanism of action on the cardiovascular system through cardiac telocytes is unclear. Interestingly, 5 µm of berberine remarkably decreased the concentration of intracellular calcium and membrane depolarization in cultured telocytes, upregulated the expression of CX43 and β -catenin, and downregulated the expressions of TRPV4 and TRPV1. Here, telocytes were identified in the vascular adventitia and intima, endocardium, myocardium, adventitia, and heart valves. Moreover, telocytes were broadly dispersed around cardiac vessels and interacted directly through gap junctions and indirectly through extracellular vesicles. Together, cardiac telocytes interact with berberine and then deliver drug information to the heart. Telocytes may be an essential cellular target for drug therapy of the cardiovascular system. [ABSTRACT FROM AUTHOR]
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- 2024
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21. The ratio of monocyte count and high-density lipoprotein cholesterol mediates the association between urinary tungsten and cardiovascular disease: a study from NHANES 2005–2018.
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Wu, Yudong, Meng, Yajie, Yi, Weizhuo, Pan, Rubing, Liang, Yunfeng, Li, Yuxuan, Jin, Xiaoyu, Sun, Xiaoni, Yan, Shuangshuang, Mei, Lu, Song, Jian, Song, Shasha, Cheng, Jian, and Su, Hong
- Subjects
HDL cholesterol ,CHOLESTERYL ester transfer protein ,CARDIOVASCULAR diseases ,LEUKOCYTE count ,HEALTH & Nutrition Examination Survey ,TUNGSTEN - Abstract
Tungsten (W) is an emerging contaminant that can damage multiple systems in humans. However, studies of its effects on cardiovascular disease (CVD) are limited. The monocyte count to high-density lipoprotein cholesterol ratio (MHR) is a composite inflammatory index of great concern in recent years, derived from lipid and cell inflammation parameters, that is used to indicate the risk of CVD. This study aimed to investigate the association between urinary W and CVD in the general population and compare the mediating effects of lipids, cell inflammatory parameters, and MHR to find a better target for intervention. We analyzed data from 9137 (≥ 20 years) participants in the National Health and Nutrition Examination Survey (NHANES), from 2005 to 2018. Restricted cubic splines (RCS) and survey-weighted generalized linear models (SWGLMs) were used to assess the relationship between W and CVD. Mediated analyses were used to explore lipids, cell inflammatory parameters, and MHR in the possible mediating pathways between W and CVD. In SWGLM, we found that W enhances the risk of CVD, especially congestive heart failure (CHF), coronary heart disease (CHD), and angina pectoris (AP). Women, higher age groups (≥ 55 years), and those with hypertension were vulnerable to W in the subgroup analysis. Mediation analysis showed that monocyte count (MC), white blood cell count (WBC), high-density lipoprotein cholesterol (HDL), and MHR played a mediating role between W and CVD in proportions of 8.49%, 3.70%, 5.18%, and 12.95%, respectively. In conclusion, our study shows that urinary W can increase the risk of CVD, especially for CHF, CHD, and AP. Women, older age groups, and people with hypertension seem to be more vulnerable to W. In addition, MC, WBC, HDL, and MHR mediated the association between W and CVD, especially MHR, which suggests that we should consider it as a priority intervention target in the future. [ABSTRACT FROM AUTHOR]
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- 2023
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22. Akkermansia muciniphila and Lactobacillus plantarum ameliorate systemic lupus erythematosus by possibly regulating immune response and remodeling gut microbiota.
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Mengchen Guo, Mei Lu, Kun Chen, Rui Xu, Yumin Xia, Xingyin Liu, Zhi Liu, and Qisha Liu
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- 2023
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23. Characterization of airborne microplastics at different workplaces of the poly(ethylene:propylene:diene) (EPDM) rubber industry.
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Sun, Xiaoni, Song, Rong, Liu, Jintao, Yan, Shuangshuang, Li, Yuxuan, Jin, Xiaoyu, Liang, Yunfeng, Wu, Yudong, Mei, Lu, Pan, Rubing, Yi, Weizhuo, Song, Jian, Cheng, Jian, and Su, Hong
- Subjects
RUBBER industry ,MICROPLASTICS ,PLASTIC marine debris ,MANUFACTURING processes ,ACRYLONITRILE butadiene styrene resins ,AIR sampling - Abstract
Microplastics (MPs) as an emerging air pollutant have received widespread attention, but research on airborne MPs at occupational sites is still limited, especially in the rubber industry. Hence, indoor air samples were collected from three production workshops and an office of a rubber factory producing automotive parts to analyze the characteristics of airborne MPs in different workplaces of this industry. We found MP contamination in all air samples from the rubber industry, and the airborne MPs at all sites mainly showed small-sized (< 100 μm) and fragmented characteristics. The abundance and source of MPs at various locations is primarily related to the manufacturing process and raw materials of the workshop. The abundance of MPs in the air was higher in workplaces where production activities are involved than in office (360 ± 61 n/m
3 ), of which the highest abundance of airborne MPs was in the post-processing workshop (559 ± 184 n/m3 ). In terms of types, a total of 40 polymer types were identified. The post-processing workshop has the largest proportion of injection-molded plastic ABS, the extrusion workshop has a greater proportion of EPDM rubber than the other locations, and the refining workshop has more MPs used as adhesives, such as aromatic hydrocarbon resin (AHCR). [ABSTRACT FROM AUTHOR]- Published
- 2023
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24. Lactobacillus plantarum F25‐4 assisted rice soaking reduces the cooking strength of japonica rice for Chinese rice wine brewing.
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Yang, Liu, Mei, Lu, Chen, Xin, Sun, Hanju, and Li, Jinglei
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RICE wines ,RICE flour ,LACTOBACILLUS plantarum ,RICE ,DIFFERENTIAL scanning calorimetry ,INFRARED spectroscopy ,PROTEIN structure - Abstract
Summary: This study investigated the effect of Lactobacillus plantarum F25‐4 assisted rice soaking (LAS) on the cooking properties of japonica rice used for Chinese rice wine (CRW) production. The effects of LAS and natural soaking were compared based on the chemical composition, thermal characteristics, infrared spectroscopy and sodium dodecyl sulphate‐polyacrylamide gel electrophoresis of rice flour. After LAS, the protein content of the rice was reduced by 17.63%, and the initial temperature (To), peak temperature (Tp) and conclusion temperature (Tc) were reduced by 36.86%, 17.89% and 1.61%, respectively, as revealed by differential scanning calorimetry analysis. The Zeta (ζ) potential value changed from −8.75 mV to −3.99 mV, and the minimum cooking time was reduced by 40% to only 15 min. The viscoelasticity of LAS rice increased after gelatinisation, as confirmed by confocal laser scanning microscope images. The glutelin precursor of the LAS rice disappeared, and the disorder of protein secondary structure increased, but there was no significant difference in the starch crystal area. LAS effectively improved the cooking properties of rice by changing the protein configuration on the surface of starch granules and reducing protein adsorption, leading to increased starch water absorption and decreased rice gelatinisation temperature. Our research suggests that LAS can reduce the cooking temperature of rice in CRW production, thus saving steam consumption during cooking. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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25. Effects of short-term extreme temperature treatment on the development and reproductive capacity of Encarsia formosa.
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Ming-Jiang Li, Bo Zhang, Guo-Hua Chen, Shun-Wen Zhou, Ji-Huan Liu, Mei Lu, Jin-Long Zhang, Shao-Wu Yang, and Xiao-Ming Zhang
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CLIMATE extremes ,CAPACITY building ,SWEETPOTATO whitefly ,INSECT populations ,LOW temperatures - Abstract
Encarsia formosa is a natural enemy of the invasive pest Bemisia tabaci and is known to be a dominant parasitic. The frequency and magnitude of climate extremes, particularly temperature extremes, have increased, which has put insect populations at risk. However, the effects of temperature extremes on E. formosa are not well understood. To examine the impact of short-term extreme temperature exposure on the development and reproduction of E. formosa, eggs, larvae, pupae, and adults were exposed to high/low temperature treatments (HLT
25 , HLT50 , LLT25 , and LLT50 ). Our findings indicate that the pupal stage of E. formosa exhibited the strongest tolerance to both heat and cold, while adults exhibited a weaker tolerance. The shortest egg-to-adult development period of 12.65 days was observed in E. formosa exposed to HLT50 treatment during the egg-larval stage. The parasitism peak of the adult stage was delayed by 1–6 days after exposure to extreme temperatures during the egg-larval stage. Conversely, the parasitism peak was advanced by 1–3 days after exposure to extreme temperatures during the pupal and adult stages. The eclosion rate, total parasitism, eclosion rate of the F1 generation, and adult longevity of the F1 generation were lower in the treatment groups than in the control groups. The F1 generation’s development period was prolonged to 15.49 and 15.19 days after exposure to HLT25 and HLT50 treatments, respectively, during the egg-larval stage. The F1 generation’s development period was shortened to 13.33 days after exposure to LLT50 treatment during the pupal stage. Male individuals appeared in the F1 generation after exposure to HLT50 treatment during the pupal stage, with females accounting for only 56.38%. Our results demonstrate that short-term exposure to extreme temperatures has detrimental effects on the growth and reproduction of E. formosa. In field biocontrol against E. formosa, the release of E. formosa should be avoided as much as possible when the ambient temperature is higher than 35°C or lower than 0°C. During extreme temperature conditions, timely supplementation and release of E. formosa population, along with ventilation and cooling in greenhouse facilities during summer, are necessary for better pest control efficacy [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
26. Effects of short-term extreme temperature treatment on the development and reproductive capacity of Encarsia formosa.
- Author
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Ming-Jiang Li, Bo Zhang, Guo-Hua Chen, Shun-Wen Zhou, Ji-Huan Liu, Mei Lu, Jin-Long Zhang, Shao-Wu Yang, and Xiao-Ming Zhang
- Subjects
CLIMATE extremes ,CAPACITY building ,SWEETPOTATO whitefly ,INSECT populations ,LOW temperatures - Abstract
Encarsia formosa is a natural enemy of the invasive pest Bemisia tabaci and is known to be a dominant parasitic. The frequency and magnitude of climate extremes, particularly temperature extremes, have increased, which has put insect populations at risk. However, the effects of temperature extremes on E. formosa are not well understood. To examine the impact of short-term extreme temperature exposure on the development and reproduction of E. formosa, eggs, larvae, pupae, and adults were exposed to high/low temperature treatments (HLT25, HLT50, LLT25, and LLT
50 ). Our findings indicate that the pupal stage of E. formosa exhibited the strongest tolerance to both heat and cold, while adults exhibited a weaker tolerance. The shortest egg-to-adult development period of 12.65 days was observed in E. formosa exposed to HLT50 treatment during the egg-larval stage. The parasitism peak of the adult stage was delayed by 1–6 days after exposure to extreme temperatures during the egg-larval stage. Conversely, the parasitism peak was advanced by 1–3 days after exposure to extreme temperatures during the pupal and adult stages. The eclosion rate, total parasitism, eclosion rate of the F1 generation, and adult longevity of the F1 generation were lower in the treatment groups than in the control groups. The F1 generation’s development period was prolonged to 15.49 and 15.19 days after exposure to HLT25 and HLT50 treatments, respectively, during the egg-larval stage. The F1 generation’s development period was shortened to 13.33 days after exposure to LLT50 treatment during the pupal stage. Male individuals appeared in the F1 generation after exposure to HLT50 treatment during the pupal stage, with females accounting for only 56.38%. Our results demonstrate that short-term exposure to extreme temperatures has detrimental effects on the growth and reproduction of E. formosa. In field biocontrol against E. formosa, the release of E. formosa should be avoided as much as possible when the ambient temperature is higher than 35°C or lower than 0°C. During extreme temperature conditions, timely supplementation and release of E. formosa population, along with ventilation and cooling in greenhouse facilities during summer, are necessary for better pest control efficacy. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
27. Early therapeutic effects of an Angiopoietin-1 mimetic peptide in middle-aged rats with vascular dementia.
- Author
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Huanjia Gao, Findeis, Elizabeth L., Culmone, Lauren, Powell, Brianna, Landschoot-Ward, Julie, Zacharek, Alex, Wu, Trueman, Mei Lu, Chopp, Michael, and Venkat, Poornima
- Subjects
VASCULAR dementia ,BRAIN ,BIOLOGICAL models ,INTERLEUKINS ,INFLAMMATION ,ANIMAL experimentation ,CEREBRAL infarction ,ION channels ,MICROSCOPY ,ONE-way analysis of variance ,WHITE matter (Nerve tissue) ,RATS ,MEMBRANE glycoproteins ,NOOTROPIC agents ,TELENCEPHALON ,TUMOR necrosis factors ,DESCRIPTIVE statistics ,ANALYSIS of covariance ,RESEARCH funding ,VASCULAR endothelial growth factors ,CHEMOKINES ,BLOOD coagulation factors ,POLYMERASE chain reaction ,LYMPHATICS ,THROMBIN ,PHARMACODYNAMICS ,DISEASE complications - Abstract
Background: Vascular Dementia (VaD) refers to dementia caused by cerebrovascular disease and/or reduced blood flow to the brain and is the second most common form of dementia after Alzheimer's disease. We previously found that in middle-aged rats subjected to a multiple microinfarction (MMI) model of VaD, treatment with AV-001, a Tie2 receptor agonist, significantly improves short-term memory, long-term memory, as well as improves preference for social novelty compared to control MMI rats. In this study, we tested the early therapeutic effects of AV-001 on inflammation and glymphatic function in rats subjected to VaD. Methods: Male, middle-aged Wistar rats (10-12 m), subjected to MMI, were randomly assigned to MMI and MMI + AV-001 treatment groups. A sham group was included as reference group. MMI was induced by injecting 800 ± 200, 70-100 μm sized, cholesterol crystals into the internal carotid artery. Animals were treated with AV-001 (1 μg/Kg, i.p.) once daily starting at 24 h after MMI. At 14 days after MMI, inflammatory factor expression was evaluated in cerebrospinal fluid (CSF) and brain. Immunostaining was used to evaluate white matter integrity, perivascular space (PVS) and perivascular Aquaporin-4 (AQP4) expression in the brain. An additional set of rats were prepared to test glymphatic function. At 14 days after MMI, 50 μL of 1% Tetramethylrhodamine (3 kD) and FITC conjugated dextran (500 kD) at 1:1 ratio were injected into the CSF. Rats (4-6/group/time point) were sacrificed at 30 min, 3 h, and 6 h from the start of tracer infusion, and brain coronal sections were imaged using a Laser scanning confocal microscope to evaluate tracer intensities in the brain. Result: Treatment of MMI with AV-001 significantly improves white matter integrity in the corpus callosum at 14 days after MMI. MMI induces significant dilation of the PVS, reduces AQP4 expression and impairs glymphatic function compared to Sham rats. AV-001 treatment significantly reduces PVS, increases perivascular AQP4 expression and improves glymphatic function compared to MMI rats. MMI significantly increases, while AV-001 significantly decreases the expression of inflammatory factors (tumor necrosis factor-α (TNF-α), chemokine ligand 9) and anti-angiogenic factors (endostatin, plasminogen activator inhibitor-1, P-selectin) in CSF. MMI significantly increases, while AV-001 significantly reduces brain tissue expression of endostatin, thrombin, TNF-α, PAI-1, CXCL9, and interleukin-6 (IL-6). Conclusion: AV-001 treatment of MMI significantly reduces PVS dilation and increases perivascular AQP4 expression which may contribute to improved glymphatic function compared to MMI rats. AV-001 treatment significantly reduces inflammatory factor expression in the CSF and brain which may contribute to AV-001 treatment induced improvement in white matter integrity and cognitive function. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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28. Total Hip Arthroplasty or Arthroscopy for Pigmented Villonodular Synovitis of the Hip: A Retrospective Study with 3‐Year Follow‐Up at Minimum.
- Author
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Li, Tao, Mei, Lu, Xu, Yang, Cao, YuanYiNuo, Shi, XiaoJun, Chen, Gang, and Li, Jian
- Subjects
SYNOVITIS ,TOTAL hip replacement ,ARTHROSCOPY ,VISUAL analog scale ,MUSCLE strength - Abstract
Objective: Pigment Villonodular synovitis of the hip, a rare pain proliferation of the synovium, was treated successfully with total hip arthroplasty and arthroscopy. Most recent results come from small case series with no study comparing arthroscopy and arthroplasty. In this study, we aimed to show and compare the clinical outcomes of arthroscopy and total hip arthroplasty (THA) in pigment Villonodular synovitis of the hip. Methods: This was a retrospective clinical trial with data from patients with pigment Villonodular synovitis of the hip between 2010 and 2019. The study included 17 patients in the THA group, and 20 patients in the arthroscopy group. The clinical outcomes were evaluated at 3, 6, and 12 months, at 1 and 2 years, and every 5 years afterward. The clinical efficacy was measured using the Harris hip scores (HHSs) and visual analogue scale (VAS) score. Results: The mean HHS improved from 45.24 ± 10.36 to 78.94 ± 19.11 in the THA group (t = −6.394, P = 0.000) and 45.30 ± 11.08 to 71.60 ± 19.78 (t = −5.187, P = 0.000) in the arthroscopy group from pre‐operation to the final follow‐up. There is no significant difference between the two groups (t = 1.051, P = 0.301). The mean VAS improved from 3.65 ± 0.79 to 0.35 ± 0.70 (t = 12.890, P = 0.000) in the THA group and 4.05 ± 0.94 to 1.35 ± 1.79 (t = 5.979, P = 0.001) in the arthroscopy group postoperatively. There is no significant difference between the two groups (t = 1.329, P = 0.193). Recurrence of PVNS was diagnosed in four patients (20%) of the arthroscopy group and they underwent THA after arthroscopy, and the mean interval was 44.25 ± 6.98 months. All patients reached level 5 muscle strength by the final follow‐up. All the patients' buckling ranges were over 105 degrees. Their internal and external hip rotation was over 15 degrees. Their hip adduction was over 20 degrees, and abduction over 30 degrees. Conclusion: Both THA and arthroscopy in the setting of PVNS can improve patients' function and lead to a low rate of local recurrence. By selecting patients well for each approach, one can expect a reasonable result. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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29. The Cellular Mechanism of Acupuncture for Ulcerative Colitis based on the Communication of Telocytes.
- Author
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Bai, Xuebing, Mei, Lu, Shi, Yonghong, Huang, Haixiang, Guo, Yanna, Liang, Chunhua, Yang, Min, Wu, Ruizhi, Zhang, Yingxin, and Chen, Qiusheng
- Published
- 2023
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30. The relationships among Taiwanese youth’s polychronicity, multitasking behavior and perceived learning performance in online learning.
- Author
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Yi Fang Luo, Seokmin Kang, Shu Ching Yang, and Chia Mei Lu
- Subjects
TAIWANESE people ,ONLINE education ,SATISFACTION ,HIGH school students ,CLASSROOM environment - Abstract
Background: The advancement of digital technology implies the importance of polychronic learning. Since polychronicity is not equivalent to multitasking behavior, they need to be considered separately. However, less research has been explored on how polychronicity is related to multitasking behavior in the educational field. Objective: To explore the relationships among polychronicity, multitasking behavior and learning performance (including knowledge acquisition and learning satisfaction) in an online learning environment. Methods: The relationship among variables was analyzed from 865 responses obtained from a questionnaire survey, and independent sample t tests and SEM analysis were used to examine the research hypotheses. Results: College students showed a higher frequency of multitasking behavior, time tangibility and scheduling preference, and learning satisfaction in multitasking online learning environments than high school students. Additionally, college students were different from high school students on the paths of involvement with people to multitasking behavior (Δχ2 = 5.42, p = 0.02) and scheduling preference to learning satisfaction (Δχ2 = 9.54, p = 0.002). Conclusion: The relationship among polychronicity, multitasking behavior and perceived learning performance in an online learning environment varies by student educational stage. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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31. Total Synthesis of Three Natural Phenolic Glycosides.
- Author
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Ning Cao, Sheng-Hua Cao, Ke-Hui Tang, Dan Lu, Jian-Bin Zhang, Zhi-Zhuang Ye, Zi-Cong Zhuang, Min-Yi Ye, Jian-Mei Lu, Lin-Gang Hu, Yue Song, and Xin-Yi Ye
- Published
- 2023
- Full Text
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32. Phenotypic aging mediates the association between blood cadmium and depression: a population-based study.
- Author
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Wu, Yudong, Wu, Qing, Pan, Rubing, Yi, Weizhuo, Li, Yuxuan, Jin, Xiaoyu, Liang, Yunfeng, Mei, Lu, Yan, Shuangshuang, Sun, Xiaoni, Qin, Wei, Song, Jian, Cheng, Jian, and Su, Hong
- Subjects
MIDDLE-aged persons ,CADMIUM ,HEALTH & Nutrition Examination Survey - Abstract
Depression is a serious public health problem today, especially in middle-aged and older adults. Although the etiology of the disease has not been fully elucidated, environmental factors are increasingly not negligible. Cadmium is widely used in industrial production. The general population may be chronically exposed to low doses of cadmium. This study aimed to investigate the association between blood cadmium and depression and to explore the mediating role of aging indicators in this process. We conducted a cross-sectional study on blood cadmium (N = 7195, age ≥ 20 years) using data from the 2007–2010 National Health and Nutrition Examination Survey (NHANES). Aging indicators (biological and phenotypic age) are calculated by combining multiple biochemical and/or functional indicators. To determine the relationship between blood cadmium concentrations and depressive symptoms, we used weighted multivariate logistic regression and restricted cubic spline functions and employed mediation analysis to explore the possible mediating effects of aging indicators in the process. We found a significant positive association between blood cadmium and depression with an odds ratio (OR) and 95% confidence interval (CI): 1.22 (1.04,1.43). Restricted cubic spline analysis found a linear positive association between blood cadmium and depression. In the fully covariate-adjusted model, we found a positive association between blood cadmium and biological age and phenotypic age with β and 95% CI: 1.02 (0.65, 1.39) and 2.35 (1.70, 3.01), respectively. In the mediation analysis, we found that phenotypic age mediated 21.32% of the association between blood cadmium and depression. These results suggest that even exposure to low doses of cadmium can increase the risk of depression and that this process may be mediated by phenotypic aging. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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33. Therapeutic effects of CD133 + Exosomes on liver function after stroke in type 2 diabetic mice.
- Author
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Venkat, Poornima, Huanjia Gao, Findeis, Elizabeth L., Chen, Zhili, Zacharek, Alex, Landschoot-Ward, Julie, Powell, Brianna, Mei Lu, Zhongwu Liu, Zhenggang Zhang, and Chopp, Michael
- Subjects
NON-alcoholic fatty liver disease ,STROKE ,CORD blood ,TYPE 2 diabetes ,EXOSOMES ,MICE - Abstract
Background and purpose: Non-alcoholic fatty liver disease (NAFLD) is known to adversely affect stroke recovery. However, few studies investigate how stroke elicits liver dysfunction, particularly, how stroke in type 2 diabetes mellitus (T2DM) exacerbates progression of NAFLD. In this study, we test whether exosomes harvested from human umbilical cord blood (HUCBC) derived CD133 + cells (CD133 + Exo) improves neuro-cognitive outcome as well as reduces liver dysfunction in T2DM female mice. Methods: Female, adult non-DM and T2DM mice subjected to stroke presence or absence were considered. T2DM-stroke mice were randomly assigned to receive PBS or Exosome treatment group. CD133 + Exo (20 mg/200 ml PBS, i.v.) was administered once at 3 days after stroke. Evaluation of neurological (mNSS, adhesive removal test) and cognitive function [novel object recognition (NOR) test, odor test] was performed. Mice were sacrificed at 28 days after stroke and brain, liver, and serum were harvested. Results: Stroke induces severe and significant short-term and long-term neurological and cognitive deficits which were worse in T2DM mice compared to non-DM mice. CD133 + Exo treatment of T2DM-stroke mice significantly improved neurological function and cognitive outcome indicated by improved discrimination index in the NOR and odor tests compared to control T2DM-stroke mice. CD133 + Exo treatment of T2DM stroke significantly increased vascular and white matter/axon remodeling in the ischemic brain compared to T2DM-stroke mice. However, there were no differences in the lesion volume between non-DM stroke, T2DM-stroke and CD133 + Exo treated T2DM-stroke mice. In T2DM mice, stroke induced earlier and higher TLR4, NLRP3, and cytokine expression (SAA, IL1b, IL6, TNFa) in the liver compared to heart and kidney, as measured by Western blot. T2DM-stroke mice exhibited worse NAFLD progression with increased liver steatosis, hepatocellular ballooning, fibrosis, serum ALT activity, and higher NAFLD Activity Score compared to T2DM mice and non-DM-stroke mice, while CD133 + Exo treatment significantly attenuated the progression of NAFLD in T2DM stroke mice. Conclusion: Treatment of female T2DM-stroke mice with CD133 + Exo significantly reduces the progression of NAFLD/NASH and improves neurological and cognitive function compared to control T2DMstroke mice. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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34. Exosomes may be the carrier of acupuncture treatment for major depressive disorder.
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Qin Lyu, Xin Zhou, Liu-Qing Shi, Hai-Yang Chen, Mei Lu, Xian-De Ma, and Lu Ren
- Subjects
MENTAL depression ,EXOSOMES ,ACUPUNCTURE ,EXTRACELLULAR matrix ,CELL migration - Abstract
The incidence of major depressive disorder (MDD) is increasing all over the world. There is a great need for complementary or alternative therapies with high safety, few side effects, and precise efficacy to care for MDD. In China, acupuncture has significant laboratory data and clinical trials to demonstrate its antidepressant efficacy. However, there is no clear answer as to how it works. Exosomes are membranous vesicles that rely on cellular multivesicular bodies (MVBs) fused to the cell membrane for release into the extracellular matrix. Almost all cell types are capable of producing and releasing exosomes. As a result, exosomes contain complex RNAs and proteins from their relatives (Cells that secretes exosomes). They can cross biological barriers and participate in biological activities, such as cell migration, angiogenesis, and immune regulation. These properties have made them a popular research topic. Some experts have suggested that exosomes may serve as delivery vehicles for acupuncture to work. This presents both an opportunity and a new challenge for improving the protocols of acupuncture as a treatment for MDD. To better define the relationship between MDD, exosomes, and acupuncture, we reviewed the literature from the last few years. Inclusion criteria included randomized controlled trials and basic trials evaluating acupuncture in the treatment or prevention of MDD, the role of exosomes in the development and progression of MDD, and the role of exosomes in acupuncture. We believe that acupuncture may affect the distribution of exosomes in vivo, and exosomes may be a new carrier for acupuncture treatment of MDD in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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35. Quantitative trait locus mapping and candidate gene analysis for salt tolerance at bud stage in rice.
- Author
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Wenjing Yin, Tianqi Lu, Zhengai Chen, Tao Lu, Hanfei Ye, Yijian Mao, Yiting Luo, Mei Lu, Xudong Zhu, Xi Yuan, Yuchun Rao, and Yuexing Wang
- Subjects
LOCUS (Genetics) ,GENE mapping ,RICE ,GENE expression ,SOIL salinization ,PROMOTERS (Genetics) - Abstract
Soil salinization has a serious influence on rice yield and quality. How to enhance salt tolerance in rice is a topical issue. In this study, 120 recombinant inbred line populations were generated through nonstop multi-generation selfing using a male indica rice variety Huazhan (Oryza sativa L. subsp. indica cv. 'HZ') and a female variety of Nekken2 (Oryza sativa L. subsp. japonica cv. 'Nekken2') as the parents. Germination under 80 mM NaCl conditions was measured and analyzed, and quantitative trait locus (QTL) mapping was completed using a genetic map. A total of 16 salt-tolerance QTL ranges were detected at bud stage in rice, which were situated on chromosomes 3, 4, 6, 8, 9, 10, 11, and 12. The maximum limit of detection was 4.69. Moreover, the qST12.3 was narrowed to a 192 kb region on chromosome 12 using map-based cloning strategy. Statistical analysis of the expression levels of these candidate genes under different NaCl concentrations by qRT-PCR revealed that qST12.3 (LOC_Os12g25200) was significantly downregulated with increasing NaCl concentration, and the expression level of the chlorine-transporter-encoding gene LOC_Os12g25200 in HZ was significantly higher than that of Nekken2 under 0 mM NaCl. Sequencing analysis of LOC_Os12g25200 promoter region indicated that the gene expression difference between parents may be due to eight base differences in the promoter region. Through QTL mining and analysis, a plurality of candidate genes related to salt tolerance in rice was obtained, and the results showed that LOC_Os12g25200 might negatively regulate salt tolerance in rice. The results provide the basis for further screening and cultivation of salt-tolerant rice varieties and have laid the foundation for elucidating further molecular regulation mechanisms of salt tolerance in rice. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
36. LINEAR FREQUENCY MODULATION INFRARED THERMAL IMAGING DETECTION TECHNOLOGY FOR GFRP/PMI FOAM SANDWICH STRUCTURE DEFECTS.
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Ya-Fei SONG, Qing-Ju TANG, Chi-Wu BU, Yu-Mei LU, and Peng XU
- Subjects
SANDWICH construction (Materials) ,THERMOGRAPHY ,INFRARED imaging ,DISCRETE Fourier transforms ,FOAM ,MECHANICAL behavior of materials - Abstract
As one of the important structures of composite materials, polymethacrylimide (PMI) foam sandwich structure is prone to debonding and delamination defects during manufacturing and service, which seriously affects the mechanical properties of materials. Therefore, it is necessary to detect the defects of foam sandwich structure. A linear frequency modulation infrared thermal wave nondestructive testing system was built to study the correlation between the geometric characteristics (diameter and depth) of the defect and the surface temperature signal and its influence on the detection effect. The image sequence is processed by principal component analysis, discrete Fourier transform, thermal wave signal reconstruction, and other algorithms. Studies have shown that the larger the defect diameter, the shallower the depth, easy to detect defects, detection effect is good. The detection system can effectively detect and identify debonding and delamination defects. The thermal wave signal reconstruction method is superior to the principal component analysis method and the discrete Fourier transform method in the signal-to-noise ratio index, which improves the quality of the image and is conducive to the effective identification of the image surface defect information. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
37. Dual-energy spectral detector computed tomography differential diagnosis of adrenal adenoma and pheochromocytoma: Changes in the energy level curve, a phenomenon caused by lipid components?
- Author
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Yu-li Wang, Xiao-lei Liu, Ze-bing Liao, Xiao-mei Lu, Ling-lin Chen, Yi Lei, Han-wen Zhang, and Fan Lin
- Subjects
DUAL energy CT (Tomography) ,PHEOCHROMOCYTOMA ,ADRENAL tumors ,ADENOMA ,DIFFERENTIAL diagnosis ,DETECTORS ,ADRENAL glands - Abstract
Background and objectives: Pheochromocytoma and adrenal adenoma are common space-occupying lesions of the adrenal gland, and incorrect surgery may lead to adrenal crisis. We used a new method, dual-energy spectral detector computed tomography (SDCT), to differentiate between the two. Materials and methods: We analysed the imaging images of patients with SDCT scans and pathologically confirmed adrenal adenomas (n=70) and pheochromocytomas (n=15). The 40, 70, and 100 KeV virtual monoenergetic images (VMIs) were reconstructed based on the SCDT arterial phase, and the correlation between the arterial/venous phase iodine concentration (AP-IC/VPIC), the effective atomic number (Z-effect), the slope of the Hounsfield unit attenuation plot (VMI slope) and the pathological results was tested. The Shapiro--Wilk test was used to determine whether the above data conformed to a normal distribution. For parameters with P greater than 0.05, Student's t test was used, and the Mann--Whitney testwas used for the remaining parameters. A ROCcurve was drawn based on the results. Results: Student's t test showed that the 40 KeV VMI and the VMI slope were both statistically significant (P<0.01). The Mann--Whitney U test showed that ID-A was statistically significant (P=0.004). ROC curve analysis showed that 40 keV VMI (AUC=0.818), AP-IC (AUC=0.736), difference (AUC=0.817) and VMISlope (0.817) could be used to differentiate adrenal adenoma from pheochromocytoma. Conclusion: The effect of lipid components on SDCT parameters can be used to differentiate adrenal adenoma from pheochromocytoma. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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38. miR-133b Promotes Esophageal Squamous Cell Carcinoma Metastasis.
- Author
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Cong-Gai Huang, Qing Liu, Shu-Tao Zheng, Tao Liu, Yi-Yi Tan, Tian-Yuan Peng, Jiao Chen, and Xiao-Mei Lu
- Abstract
BACKGROUND: Evaluation of biological changes at the molecular level has important clinical implications for improving the survival rate of esophageal squamous cell carcinoma (ESCC). Therefore, we plan to analyze and elucidate the expression of microRNA-133b (miR-133b), M2 pyruvate kinase (PKM2), and signal transducer and activator of transcription 3 (STAT3) in ESCC and their associated clinicopathological significance. METHODS: The 72 patients with ESCC were selected as the experimental study group. Normal adjacent tissues (NAT) were matched as the control group. In this study, in situ hybridization was used to detect the expression of miR-133b in ESCC, and tissue expressions of PKM2 and STAT3 were detected by immunohistochemistry, and literature review was conducted. RESULTS: Studies had shown that the positive expression of miR-133b in NAT was significantly higher than that in ESCC (χ² = 9.007, P = .003). PKM2 and STAT3 in ESCC had a significantly higher positive expression levels than those of NAT (χ² = 56.523, P = .000; χ² = 72.939, P = .000). From correlation analysis, there was a negative correlation between miR-133b and PKM2(r = -0.515, P < .001), a negative correlation between miR-133b and STAT3(r = -0.314, P = .007), and a positive correlation between PKM2 and STAT3(r = 0.771, P < .001). CONCLUSIONS: In ESCC, our study demonstrated that downregulation of miR-133b and upregulation of PKM2 and STAT3. We predict that miR-133b may inhibit the STAT3 pathway by downregulating PKM2. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
39. Ion-in-Conjugation: A Promising Concept for Multifunctional Organic Semiconductors.
- Author
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Chuang Yu, Jing-Hui He, and Jian-Mei Lu
- Published
- 2022
- Full Text
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40. Pre‐gelatinization and cellulase addition improve fermentation performance and antioxidant activity of black rice wine.
- Author
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Yang, Liu, Chen, Xin, Zhou, Yue, Mei, Lu, Wu, Yuting, Sun, Hanju, Yao, Shengfei, Xu, Shangying, and Li, Jinglei
- Subjects
RICE wines ,RICE flour ,RICE bran ,RICE oil ,CELLULASE ,FERMENTATION ,RICE starch ,NUCLEAR magnetic resonance - Abstract
BACKGROUND: Black rice contains a variety of bioactive substances that contribute to the high nutritional value of black rice wine (BRW). However, the dense bran layer of black rice retards the fermentation rate and reduces the dissolution of active components. Hence, this study aims to investigate the effects of pre‐gelatinization (PG) before cooking and cellulase (CE) addition during fermentation on the fermentation performance of BRW and its antioxidant activity. RESULTS: PG combined with CE treatments (PGCE) increases the alcohol content, free amino acid content, volatile flavor content and total antioxidant activity of BRW by 90.81%, 15.36%, 38.05% and 19.56%, respectively, compared with the control group. Scanning electron microscopy, low‐field nuclear magnetic resonance and texture properties analysis indicate that PG treatment increases gelatinization degree of starch during cooking, decreases bound water content in cooked black rice and promotes unbound water release. CE destroys the aleurone layer structure, facilitates the release of unbound water and the exposure of rice starch, thus increasing the reaction area and extravasation content significantly, which is beneficial to microbial growth and fermentation. Incomplete aleurone layer also promotes the dissolution of anthocyanins, phenols and other active substances, increasing the antioxidant activities of BRW. CONCLUSION: PG and CE treatments reduce the fermentation time and improve the quality of BRW by destroying the black rice structure. © 2022 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
41. The Behavior of CO2 Supersonic Jets in the Converter Slag-Splashing Process.
- Author
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Zhang, Han, Yuan, Zhangfu, Mei, Lu, Peng, Xuan, Liu, Ke, and Zhao, Hongxin
- Published
- 2022
- Full Text
- View/download PDF
42. Clinical outcomes of patients with pigmented villonodular synovitis of the shoulder after arthroscopic synovectomy.
- Author
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Li, Yinghao, Mei, Lu, Li, Tao, Pang, Long, Tang, Xin, and Li, Jian
- Subjects
SYNOVITIS ,SHOULDER ,ROTATOR cuff ,VISUAL analog scale ,ARTHROSCOPY ,TREATMENT effectiveness - Abstract
Background: Shoulder pigmented villonodular synovitis (PVNS) is a severe clinical condition, while few studies have focused on this situation due to its rarity. This study was to investigate the efficacy of arthroscopic treatment of patients diagnosed with shoulder PVNS.Methods: From Jan 1st, 2010 to Dec. 31st, 2019, 6 patients (5 females and 1 male) diagnosed with shoulder PVNS underwent arthroscopic synovectomy in our hospital and combined rotator cuff repair was performed in 3 of them. The outcomes of this study include Constant score, Visual Analogue Scale (VAS), University of California, Los Angeles (UCLA) score and American Shoulder and Elbow Surgeons (ASES) score. The data were retrieved from the patients' medical records.Results: With a mean follow-up of 52.0 months (range, 28-92 months), the mean difference of Constant, VAS, UCLA and ASES scores were 27.83 ± 21.60, 2.83 ± 2.56, 11.67 ± 10.93 and 17.83 ± 25.35, respectively. Statistically significant improvements were detected in all the patient-reported outcomes except ASES score. One of the patients suffered from recurrence. Two patients suffered from mild complications after the surgeries while both of them achieved satisfactory recovery finally.Conclusion: Arthroscopic synovectomy in the setting of shoulder PVNS can improve patients' function. A concurrent rotator cuff repair is recommended if it is needed. The conclusion still needs testifying by further high-quality research with larger sample size. [ABSTRACT FROM AUTHOR]- Published
- 2022
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43. Ag‐doped CoP Hollow Nanoboxes as Efficient Water Splitting Electrocatalysts and Antibacterial Materials.
- Author
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Tong, Xianfeng, Liao, Wenhao, Fu, Yingyan, Qian, Min, Dai, Haojiang, Mei, Lu, Zhai, Yali, Chen, Tianyun, Yang, Liu, and Yang, Qinghua
- Subjects
ANTIBACTERIAL agents ,DOPING agents (Chemistry) ,ELECTROCATALYSTS ,CHARGE transfer ,COBALT ,SURFACE area - Abstract
Functionalized designs such as doping can effectively reduce charge transfer impedance and accelerate charge transfer dynamics. In this study, we reported a facile method to synthesize Ag‐doped ZIF‐67 hollow nanoboxes (Ag‐CoP HNBs) by introducing Ag into cobalt‐centered zeolitic imidazolate framework (ZIF‐67). Its unique hollow structure results in higher stability, more active sites and bigger specific surface area with excellent HER and OER performance. Specifically, Ag‐CoP HNBs requires only 97 and 256 mV to achieve a current density of 10 mA cm−2 for HER and OER in 1.0 M KOH, respectively. Meanwhile, merely a voltage of 1.53 V is needed for delivering a current density of 10 mA cm−2 for overall water splitting. Moreover, Ag‐CoP HNBs exhibits excellent antibacterial activity for different bacteria due to the presence of Ag. In conclusion, this study provided a facile, feasible and productive way for developing Ag contained bifunctional electrocatalysts with antibacterial activity, which might have potential use in seawater splitting. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
44. Is higher ambient temperature associated with acute appendicitis hospitalizations? A case-crossover study in Tongling, China.
- Author
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Li, Yuxuan, Luo, Xuelian, Wu, Yudong, Yan, Shuangshuang, Liang, Yunfeng, Jin, Xiaoyu, Sun, Xiaoni, Mei, Lu, Tang, Chao, Liu, Xiangguo, He, Yangyang, Yi, Weizhuo, Wei, Qiannan, Pan, Rubing, Cheng, Jian, and Su, Hong
- Subjects
APPENDICITIS ,HIGH temperatures ,COVID-19 ,BODY temperature ,MARRIED people ,HOSPITAL care ,MARITAL status - Abstract
Existing studies suggested that ambient temperature may affect the attack of acute appendicitis. However, the identification of the quantitative effect and vulnerable populations are still unknown. The purposes of this study were to quantify the impact of daily mean temperature on the hospitalization of acute appendicitis and clarify vulnerable groups, further guide targeted prevention of acute appendicitis in Tongling. Daily data of cases and meteorological factors were collected in Tongling, China, during 2015–2019. Time stratified case-crossover design and conditional logistic regression model were used to evaluate the odds ratio (OR) of ambient temperature on hospitalizations for acute appendicitis. Stratified analyses were performed by sex, age, and marital status. The odds ratio (OR) of hospitalizations for acute appendicitis increased by 1.6% for per 1 ℃ rise in mean temperature at lag3[OR = 1.016, 95% confidence interval (CI): 1.004–1.028]. In addition, our results suggest it is in the women that increased ambient temperature is more likely to contribute to acute appendicitis hospitalizations; we also found that the married are more susceptible to acute appendicitis hospitalizations due to increased ambient temperature than the unmarried; people in the 21–40 years old are more sensitive to ambient temperature than other age groups. The significant results of the differences between the subgroups indicate that the differences between the groups are all statistically significant. The elevated ambient temperatures increased the risk of hospitalizations for acute appendicitis. The females, married people, and patients aged 21–40 years old were more susceptible to ambient temperature. These findings suggest that more attention should be paid to the impact of high ambient temperature on acute appendicitis in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
45. Description of two new species of Hemiphyllodactylus (Reptilia: Gekkonidae) from karst landscapes in Yunnan, China, highlights complex conservation needs.
- Author
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Agung, Ade Prasetyo, Chornelia, Ada, Grismer, L. Lee, Grismer, Jesse L., Quah, Evan S. H., Jian-Mei Lu, Tomlinson, Kyle W., and Hughes, Alice C.
- Subjects
KARST ,GECKOS ,REPTILES ,NADH dehydrogenase ,SPECIES ,HABITATS ,ECOSYSTEMS - Abstract
Karst habitats are hotspots of diversity and endemism. Their naturally fragmented distributions across broad geographic landscapes have led to the complex array of smaller evolutionary ecosystems that present unique challenges from a conservation perspective. Comprehensive biodiversity assessments of karst habitats have revealed that these ecosystems contain an almost unparalleled level of endemism, and many site-restricted species remain undescribed, thus posing considerable challenges for effective conservation management. Small rock-dwelling species, such as geckos, may be particularly prone to such isolation. In this paper, we discuss one such genus, i.e., Hemiphyllodactylus, and explore its diversity across karst landforms in Yunnan Province, southwestern China. Based on morphological and genetic data, we describe two new species of Hemiphyllodactylus from karst habitats in Simao District and Yanshan County. A phylogenetic tree for Hemiphyllodactylus was constructed using 1 039 base pairs (bp) of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). The Simao and Yanshan specimens can be distinguished from all other congeners within their respective subclades based on uncorrected genetic pairwise distances greater than 6.3% and 4.3% respectively, as well as significant morphological differences. The discovery and description of these two new species brings the total number of described Hemiphyllodactylus species in China to 14 and indicates many more undescribed species from unsurveyed karst regions await discovery. Our findings suggest that karst ecosystems in Yunnan support a higher diversity of Hemiphyllodactylus than previously known. This study also highlights the importance of karst ecosystems as refugia for sitespecific endemic species and the need for heightened conservation efforts. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
46. Liver Transplant Recipient Characteristics Associated With Worse Post-Transplant Outcomes in Using Elderly Donors.
- Author
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Shimada, Shingo, Shamaa, Tayseer, Ivanics, Tommy, Kitajima, Toshihiro, Collins, Kelly, Rizzari, Michael, Atsushi Yoshida, Abouljoud, Marwan, Moonka, Dilip, Mei Lu, and Shunji Nagai
- Subjects
LIVER transplantation ,TREATMENT effectiveness ,OLDER people ,KARNOFSKY Performance Status ,OLD age - Abstract
Advanced age of liver donor is a risk factor for graft loss after transplant. We sought to identify recipient characteristics associated with negative post-liver transplant (LT) outcomes in the context of elderly donors. Using 2014-2019 OPTN/UNOS data, LT recipients were classified by donor age: =70, 40-69, and <40 years. Recipient risk factors for one-year graft loss were identified and created a risk stratification system and validated it using 2020 OPTN/UNOS data set. At transplant, significant recipient risk factors for one-year graft loss were: previous liver transplant (adjusted hazard ratio [aHR] 4.37, 95%CI 1.98-9.65); mechanical ventilation (aHR 4.28, 95%CI 1.95-9.43); portal thrombus (aHR 1.87, 95%CI 1.26-2.77); serum sodium <125 mEq/L (aHR 2.88, 95%CI 1.34-6.20); and Karnofsky score 10-30% (aHR 2.03, 95%CI 1.13-3.65), 40-60% (aHR 1.65, 95%CI 1.08-2.51). Using those risk factors and multiplying HRs, recipients were divided into low-risk (n = 931) and high-risk (n = 294). Adjusted risk of one-year graft loss in the low-risk recipient group was similar to that of patients with younger donors; results were consistent using validation dataset. Our results show that a system of careful recipient selection can reduce the risks of graft loss associated with older donor age. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. Cerebral endothelial cell derived small extracellular vesicles improve cognitive function in aged diabetic rats.
- Author
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Li Zhang, Chao Li, Rui Huang, Hua Teng, Yi Zhang, Min Zhou, Xiangshuang Liu, Baoyan Fan, Hao Luo, Annie He, Anna Zhao, Mei Lu, Chopp, Michael, and Zheng Gang Zhang
- Subjects
COGNITION disorders treatment ,ENDOTHELIAL cells ,BIOLOGICAL models ,STATISTICS ,BLOOD-brain barrier ,INTRAVENOUS therapy ,EXOSOMES ,ANIMAL experimentation ,IMMUNOHISTOCHEMISTRY ,WESTERN immunoblotting ,ONE-way analysis of variance ,DIABETES ,RATS ,CELLULAR signal transduction ,T-test (Statistics) ,RESEARCH funding ,DESCRIPTIVE statistics ,REPEATED measures design ,STEM cells ,DATA analysis ,EXTRACELLULAR vesicles - Abstract
Small extracellular vesicles (sEVs) mediate cell-cell communication by transferring their cargo biological materials into recipient cells. Diabetes mellitus (DM) induces cerebral vascular dysfunction and neurogenesis impairment, which are associated with cognitive decline and an increased risk of developing dementia. Whether the sEVs are involved in DMinduced cerebral vascular disease, is unknown. Therefore, we studied sEVs derived from cerebral endothelial cells (CEC-sEVs) of aged DM rats (DM-CEC-sEVs) and found that DM-CEC-sEVs robustly inhibited neural stem cell (NSC) generation of new neuroblasts and damaged cerebral endothelial function. Treatment of aged DM-rats with CECsEVs derived from adult healthy normal rats (N-CEC-sEVs) ameliorated cognitive deficits and improved cerebral vascular function and enhanced neurogenesis. Intravenously administered N-CEC-sEVs crossed the blood brain barrier and were internalized by neural stem cells in the neurogenic region, which were associated with augmentation of miR-1 and - 146a and reduction of myeloid differentiation primary response gene 88 and thrombospondin 1 proteins. In addition, uptake of N-CECsEVs by the recipient cells was mediated by clathrin and caveolin dependent endocytosis signaling pathways. The present study provides ex vivo and in vivo evidence that DM-CEC-sEVs induce cerebral vascular dysfunction and neurogenesis impairment and that N-CEC-sEVs have a therapeutic effect on improvement of cognitive function by ameliorating dysfunction of cerebral vessels and increasing neurogenesis in aged DM rats, respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
48. OsSPL88 Encodes a Cullin Protein that Regulates Rice Growth and Development.
- Author
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Zhengai Chen, Wenjing Yin, Xuan Li, Tao Lu, Hanfei Ye, Gaoxing Dai, Yijian Mao, Sanfeng Li, Penggen Duan, Mei Lu, Yuchun Rao, and Yuexing Wang
- Subjects
IMMOBILIZED proteins ,RICE ,DRUG resistance in bacteria ,PROTEINS ,GENE expression ,CELL death - Abstract
Plant lesion mimics refer to necrotic spots spontaneously produced by the plant without mechanical damage, pathogen invasion, and adversity stress. Here, we isolated and characterized two rice (Oryza sativa L) mutants, namely, spl88-1 (spotted leaf88-1) and spl88-2 (spotted leaf88-2), which were identified from an ethyl methanesulfonatemutagenized japonica cultivar Xiushui 11 population. Physiological and biochemical experiments indicated that more ROS accumulated in spl88-1 and spl88-2 than in wild type. spl88-1 and spl88-2 displayed spontaneous cell death and enhanced their resistance to bacterial blight by affecting the expression of defense-related genes. We isolated SPL88 by map-based cloning, which encoded a highly conserved Cullin protein. A single base deletion was detected in spl88-1 and spl88-2, in which the 132nd base C of SPL88-1 and the 381th base T of SPL88-2 were deleted, causing premature termination of protein translation. SPL88 was expressed in root, stem, leaf, leaf sheath, and panicle. The Cullin protein was localized in the cytoplasm and nucleus. The aforementioned results indicate that SPL88 regulates the growth and development of rice by affecting the expression of defense-related genes. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
49. Recommendations for the diagnosis and management of childhood Prader-Willi syndrome in China.
- Author
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Yang-Li, Dai, Fei-Hong, Luo, Hui-Wen, Zhang, Ming-Sheng, Ma, Xiao-Ping, Luo, Li, Liu, Yi, Wang, Qing, Zhou, Yong-Hui, Jiang, Chao-Chun, Zou, PWS Cooperation Group of Rare Diseases Branch of Chinese Pediatric Society, Xiao-Ou, Shan, Yu, Yang, Hui-Feng, Zhang, Zhi-Liang, Tian, Bo, Sun, Mei, Lu, Ya-Ying, Cheng, Ying, Yang, and Xiong-Ying, Yu
- Abstract
Prader-Willi syndrome (PWS) is a complex and multisystem neurobehavioral disease, which is caused by the lack of expression of paternally inherited imprinted genes on chromosome15q11.2-q13.1. The clinical manifestations of PWS vary with age. It is characterized by severe hypotonia with poor suck and feeding difficulties in the early infancy, followed by overeating in late infancy or early childhood and progressive development of morbid obesity unless the diet is externally controlled. Compared to Western PWS patients, Chinese patients have a higher ratio of deletion type. Although some rare disease networks, including PWS Cooperation Group of Rare Diseases Branch of Chinese Pediatric Society, Zhejiang Expert Group for PWS, were established recently, misdiagnosis, missed diagnosis and inappropriate intervention were usually noted in China. Therefore, there is an urgent need for an integrated multidisciplinary approach to facilitate early diagnosis and optimize management to improve quality of life, prevent complications, and prolong life expectancy. Our purpose is to evaluate the current literature and evidences on diagnosis and management of PWS in order to provide evidence-based guidelines for this disease, specially from China. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
50. Effect and Safety of Acupuncture for Type 2 Diabetes Mellitus: A Systematic Review and Meta-analysis of 21 Randomised Controlled Trials.
- Author
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Li, Shu-qing, Chen, Jian-rong, Liu, Mei-lu, Wang, Yan-ping, Zhou, Xu, and Sun, Xin
- Subjects
BLOOD sugar analysis ,ONLINE information services ,MEDICAL databases ,FASTING ,GLYCOSYLATED hemoglobin ,HOMEOSTASIS ,META-analysis ,MEDICAL information storage & retrieval systems ,ACUPUNCTURE ,SYSTEMATIC reviews ,HEALTH outcome assessment ,HYPOGLYCEMIC agents ,TYPE 2 diabetes ,RANDOMIZED controlled trials ,INSULIN ,MEDLINE ,COMBINED modality therapy ,PATIENT safety ,INSULIN resistance ,EVALUATION - Abstract
Objective: To evaluate the effects of acupuncture on hypoglycaemic outcomes in type 2 diabetes mellitus (T2DM). Methods: PubMed, Embase, Cochrane Library, and ClinicalTrials.gov were searched from inception up to July 2020, to identify randomised controlled trials (RCTs) that enrolled patients with T2DM and compared acupuncture combined with antidiabetic drugs to antidiabetic drugs alone. The primary outcomes were haemoglobin A
1c (HbA1c ) and fasting blood glucose (FBG). The secondary outcomes included 2-h blood glucose (2hBG), fasting insulin (FINS), homeostatic model assessment for insulin resistance (HOMA-IR), and acupuncture-related adverse events. Mean difference (MD) and 95% confidence interval (CI) were used as the effect measure in the meta-analysis. The quality of evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation tool. Results: Twenty-one RCTs (n=1,188) were included. The meta-analytic results showed that the acupuncture group had greater reductions in FBG (MD −6.46 mg/dL, 95% CI −11.95 to −0.98; moderate-quality evidence) and HOMA-IR (MD −1.23, 95% CI −2.16 to −0.31; low-quality evidence), but comparable changes in HbA1c (MD −0.39%, 95% CI −0.84 to 1.61; very-low-quality evidence), 2hBG (MD −4.99 mg/dL, 95% CI −20.74 to 10.76; low-quality evidence), and FINS (MD −1.32 µIU/mL, 95% CI −3.76 to 1.12; low-quality evidence). No data on the incidence of diabetic complications were found. All acupuncture-related adverse events reported were mild. Conclusions: The current evidence suggests that acupuncture, as a complementary therapy to antidiabetic drugs, has a small but statistically significant effect on decreasing FBG and improving insulin resistance. The effects of acupuncture on HbA1c , 2hBG, and FINS remain uncertain. Acupuncture is generally safe in patients with mild diabetes. More evidence for the long-term effects of acupuncture on T2DM is needed. (Trial registration No. CRD42018115639) [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
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