472 results on '"Li BJ"'
Search Results
2. Investigation of ERCC1 and ERCC2 gene polymorphisms and response to chemotherapy and overall survival in osteosarcoma
- Author
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Zhang J, Zhang Q, Lv Ly, Wei F, and Li Bj
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Adult ,Male ,Oncology ,medicine.medical_specialty ,Adolescent ,Antineoplastic Agents ,Bone Neoplasms ,Single-nucleotide polymorphism ,Biology ,Polymorphism, Single Nucleotide ,Young Adult ,Internal medicine ,Genotype ,Genetics ,medicine ,Humans ,Genetic Predisposition to Disease ,Prospective Studies ,Child ,Prospective cohort study ,Molecular Biology ,Genetic Association Studies ,Xeroderma Pigmentosum Group D Protein ,Cisplatin ,Osteosarcoma ,Sequence Analysis, DNA ,General Medicine ,Endonucleases ,medicine.disease ,DNA-Binding Proteins ,Drug Resistance, Neoplasm ,Cancer research ,ERCC2 ,Female ,ERCC1 ,Restriction fragment length polymorphism ,medicine.drug - Abstract
We assessed the role of single nucleotide polymorphisms (SNPs) in ERCC1 and ERCC2 genes in the clinical outcomes for osteosarcoma patients receiving cisplatin-based treatment. A perspective study was conducted on 260 patients with osteosarcoma during 2010 and 2011. A polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) assay was used to assess the ERCC1 rs11615 and rs3212986, and the ERCC2 rs1799793 and rs13181 gene polymorphisms. After adjustment for clinical variables, we found that the CC genotype of ERCC1 rs11615 was significantly associated with better response to chemotherapy (OR = 2.87, 95%CI = 1.24-6.97). Our study found that those carrying the CC genotype of ERCC1 rs11615 had a longer overall survival compared with the TT genotype, and the OR (95%CI) was 0.35 (0.12-0.92). In conclusion, our results suggest that the ERCC1 rs11615 polymorphism might influence the response to cisplatin-based chemotherapy and affect the clinical outcome for osteosarcoma patients.
- Published
- 2015
3. Effect of lipoic acid combined with paclitaxel on breast cancer cells
- Author
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Li Bj, Ren Gh, Gong Y, and Hao Xy
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Paclitaxel ,Colorectal cancer ,Clone (cell biology) ,Apoptosis ,Breast Neoplasms ,medicine.disease_cause ,chemistry.chemical_compound ,Breast cancer ,Genetics ,medicine ,Humans ,Molecular Biology ,Cell Proliferation ,Thioctic Acid ,Chemistry ,Cell growth ,NF-kappa B ,General Medicine ,medicine.disease ,Lipoic acid ,Immunology ,MCF-7 Cells ,Cancer research ,Female ,lipids (amino acids, peptides, and proteins) ,Oxidative stress - Abstract
Breast cancer is the most common gynecologic tumor globally that threatens women's health. Lipoic acid is a type of antioxidant that can alleviate oxidative stress damage. Studies showed that lipoic acid could inhibit the proliferation of tumor cells in cervical cancer and colon cancer. This paper intends to explore the combined effect of lipoic acid and paclitaxel on breast cancer cells. Breast cancer MCF-7 cells were divided into four groups: control group, lipoic acid group, paclitaxel group, and a combination group. MTT was applied to detect the drugs' influence on breast cancer cell proliferation. A colony formation test was used to determine the effects on breast cancer cell clone formation rate. Western blot was performed to detect the effects on nuclear factor (NF)-κB. Lipoic acid alone can inhibit tumor cell proliferation and clone formation with time dependence. Compared with the control, paclitaxel alone can significantly suppress tumor cell proliferation and clone formation (P < 0.05). Lipoic acid and paclitaxel in combination obviously strengthened their individual inhibitory effects on tumor cells (P < 0.05). Compared with the paclitaxel alone group, the combination group exhibited more remarkable inhibitory effect (P < 0.05). Lipoic acid alone or combined with paclitaxel can inhibit NF-κB expression and inhibit breast cancer cell proliferation.
- Published
- 2015
4. Clinical efficacy and mechanism of lymphoplasma exchange in the treatment of Guillain-Barre syndrome
- Author
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Duan Ww, Wang Wf, Mengchuan Luo, Qiuming Zeng, Yin Wf, Xiaosu Yang, Yanping Li, Yue-Bei Luo, Huan Yang, and Li Bj
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Adult ,CD4-Positive T-Lymphocytes ,Male ,Immunoglobulins ,Fibrinogen ,Guillain-Barre Syndrome ,Monocytes ,Flow cytometry ,Pathogenesis ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Humans ,Autoimmune disease ,medicine.diagnostic_test ,biology ,Guillain-Barre syndrome ,business.industry ,Complement C4 ,General Medicine ,Complement C3 ,Middle Aged ,medicine.disease ,Flow Cytometry ,Treatment Outcome ,030220 oncology & carcinogenesis ,Case-Control Studies ,Lymphocyte Transfusion ,Humoral immunity ,Immunology ,biology.protein ,Leukocytes, Mononuclear ,Th17 Cells ,Administration, Intravenous ,Female ,Antibody ,business ,Polyneuropathy ,medicine.drug - Abstract
Guillain-Barre syndrome (GBS) is an autoimmune disease of the nervous system and is the most common acute polyneuropathy. Both cellular and humoral immunity are believed to be involved in the pathogenesis of GBS, and various types of activated CD4+ T cells are thought to orchestrate the onset and progression of GBS. Lymphoplasma exchange (LPE) filtering out activated lymphocytes while exchanging plasma has been used for GBS treatment for years. However the treatment is still not yet optimal. In order to assess the efficacy of this treatment, we evaluate the effect of LPE and determine the appropriate frequency of LPE treatments for GBS patients through comparing the neurological deficit scores and the changes in related immunology indicators of GBS patients before and after LPE treatment. Twenty-four patients with GBS who received LPE were evaluated for immunologic indicants before treatment, on the second day, and the fourth day after the treatment. The immunoglobulin complement and CD4+ T lymphocyte subsets were tested by flow cytometry. The patients' Medical Research Council sum scores were increased from 25.7±10.4 up to. 36.7±10.4 (P=0.019) and their Hughes scores decreased from 3.7±0.76 to 3.1±0.73 (P=0.027) at 7 days after LPE. In the peripheral blood from patients received LPE treatment, the levels of immunoglobulin, complement, monocytes and fibrinogen were significantly reduced. The percentages of Th1 and Th17 cells in the CD4+ T lymphocyte subsets were significantly decreased, whereas the Th2 and Treg cells were increased in patients after treatment. The changes in CD4+T lymphocyte subsets were correlated with patient MRC score changes. Our data indicate that LPE is effective in treating GBS patients by directly removing immunoglobulin, complement, monocytes, and fibrinogen as well as regulating lymphocyte subsets in the peripheral blood.
- Published
- 2017
5. Dielectric Properties and Crystal Structure of (Mg1-xCox)2(Ti0.95Sn0.05)O4 Ceramics
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Li Bj
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Grain growth ,Materials science ,visual_art ,visual_art.visual_art_medium ,Analytical chemistry ,Nanoparticle ,Sintering ,Nanotechnology ,Ceramic ,Dielectric ,Crystal structure ,Temperature coefficient ,Nanomaterials - Abstract
The prepared (Mg1-xCox)2(Ti0.95Sn0.05)O4 (x=0.01~0.009) ceramics are sintered at 1275-1425oC, the needed sintering temperatures of (Mg1-xCox)2(Ti0.95Sn0.05)O4 ceramics slightly increased with the increase of Co4+ content. The sintering characteristics of (Mg1-xCox)2(Ti0.95Sn0.05)O4 ceramics are developed by the X-ray diffraction patterns and SEM observations to find the influence of sintering temperatures and Sn4+ content on the crystal structure and the grain growth. The influence Co4+ content and sintering temperatures on the quality values (Q×f) and the temperature coefficient of resonant frequency (τf values) of (Mg1-xCox)2(Ti0.95Sn0.05)O4 ceramics at microwave frequency are well developed in this study. As an optimal compose, (Mg1-xCox)2(Ti0.95Sn0.05)O4 (x=0.05) successfully demonstrated a dielectric constant of 14.70, a Q×f of 330,000 GHz and a temperature coefficient of resonent frequency value of -48.18 ppm/oC sintering at 1350oC.
- Published
- 2014
6. Symmetrical 1x2 digital photonic splitting switch with low electrical power consumption in SiGe waveguides
- Author
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Li, BJ, Zhang, Y., Teng, LH, Zhao, YZ, Chua, SJ, Wang, XG, Li, BJ, Zhang, Y., Teng, LH, Zhao, YZ, Chua, SJ, and Wang, XG
- Abstract
A symmetrical digital photonic splitting switch with a low insertion loss and a low driving voltage is developed using carrier injection in a silicon-germanium material for optical communication systems and networks at a wavelength of 1.55 mum. The switch structure has been improved based on a traditional 1 x 2 Y-shaped configuration by using two widened carrier injection regions. The switch has a threshold voltage of 1.0 V and a corresponding threshold current of 85 mA on one of the two output waveguide arms. The calculated driving current density is 5.7 kA/cm(2) and the calculated power consumption is 85 mW at the 85 mA of threshold current. The measured insertion loss and the crosstalk are 5.2 dB and - 9.6 dB, respectively, at driving voltage over 2 V. (C) 2005 Optical Society of America.
- Published
- 2005
7. Neural Substrate of Internet Addiction Revealed by Neuroimaging Technique in a GoStop Paradigm
- Author
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Li, BJ, primary, Shen, H, additional, Cao, FL, additional, Su, LY, additional, and Hu, DW, additional
- Published
- 2009
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8. Cloning of the papaya ringspot virus (PRSV) replicase gene and generation of PRSV-resistant papayas through the introduction of the PRSV replicase gene
- Author
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Chen, G., Ye, CM, Huang, JC, Yu, M., Li, BJ, Chen, G., Ye, CM, Huang, JC, Yu, M., and Li, BJ
- Abstract
Papaya ringspot virus (PRSV) can cause a destructive disease in papaya (Carica papaya L.). Based on observations that viral replicase (RP) gene confers resistance to virus in other plants, we designed a pair of primers and cloned the RP gene from PRSV by RT-PCR. The 3'-truncated and 5'-extended RP gene fragment was then oriented under the control of the CaMV35 S promoter and nos termination sequence in the mini Ti plasmid vector pRok to construct a plant expression vector, designated pRPTW. Papaya (C. papaya L.) cv. Tai-nong-2 embryogenic calli were transformed by Agrobacterium tumefaciens LBA4404 harboring the pRPTW vector. After selection on 100 mg/ml kanamycin, 20 putative transgenic papayas were regenerated and confirmed by PCR-Southern blot and Southern blot analyses. PRSV inoculation tests showed that the RP gene conferred resistance to PRSV in transgenic papayas and those offspring carrying the RP gene. The consistency of the presence of the RP gene and PRSV resistance indicates that replicase-mediated resistance against PRSV was attained in papaya. Possible mechanisms include RNA-mediated resistance and protein-mediated resistance, as well as others, although further studies are required.
- Published
- 2001
9. Constraining structure formation using EDGES
- Author
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Baojiu Li, Matteo Leo, Carlton M. Baugh, Tom Theuns, Silvia Pascoli, Leo M, Theuns T, Baugh CM, Li BJ, and Pascoli S
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Physics ,Cosmology, large structure formation ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Structure formation ,Cold dark matter ,010308 nuclear & particles physics ,Star formation ,Dark matter ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,Redshift ,0103 physical sciences ,Warm dark matter ,Reionization ,Astrophysics::Galaxy Astrophysics ,Line (formation) ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
The experiment to detect the global epoch of reionization signature (EDGES) collaboration reported the detection of a line at 78MHz in the sky-averaged spectrum due to neutral hydrogen (HI) 21-cm hyperfine absorption of cosmic microwave background photons at $z\sim 17$. This requires that the spin temperature of HI be coupled to the kinetic temperature of the gas at this $z$ through the scattering of Ly-$\alpha$ photons emitted by massive stars. To explain the experimental result, star formation needs to be sufficiently efficient at $z\sim 17$ and this can be used to constrain models in which small-scale structure formation is suppressed (DMF models), either due to dark matter free-streaming or non-standard inflationary dynamics. We combine simulations of structure formation with a simple recipe for star formation to investigate whether these models emit enough Ly-$\alpha$ photons to reproduce the experimental signal for reasonable values of the star formation efficiency, $f_\star$. We find that a thermal warm dark matter (WDM) model with mass $m_\mathrm{WDM}\sim 4.3\,\mathrm{keV}$ is consistent with the timing of the signal for $f_\star\lesssim 2\%$. The exponential growth of structure around $z\sim 17$ in such a model naturally generates a sharp onset of the absorption. A warmer model with $m_\mathrm{WDM}\sim 3\,\mathrm{keV}$ requires a higher star formation efficiency, $f_\star\sim 6\%$, which is a factor of few above predictions of current star formation models and observations of satellites in the Milky Way. However, uncertainties in the process of star formation at these $z$ do not allow to derive strong constrains on such models using 21-cm absorption line. The onset of the 21-cm absorption is generally faster in DMF compared to cold dark matter (CDM), unless some process significantly suppresses star formation in halos with masses below $\sim 10^8\,h^{-1}\,\mathrm{M}_\odot$., Comment: 20 pages, 3 figures. Minor changes to text and figures, some references added. Published in JCAP
- Published
- 2020
10. A new smooth-$k$ space filter approach to calculate halo abundances
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Baojiu Li, Matteo Leo, Silvia Pascoli, Carlton M. Baugh, Leo M, Baugh CM, Li BJ, and Pascoli S
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Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,010308 nuclear & particles physics ,Truncation ,Halo mass function ,Spectral density ,FOS: Physical sciences ,Astronomy and Astrophysics ,Function (mathematics) ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Space (mathematics) ,01 natural sciences ,Computational physics ,Dark matter halo ,Cosmology, large scale structure formation ,Filter (video) ,0103 physical sciences ,Halo ,010303 astronomy & astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We propose a new filter, a smooth-$k$ space filter, to use in the Press-Schechter approach to model the dark matter halo mass function which overcomes shortcomings of other filters. We test this against the mass function measured in N-body simulations. We find that the commonly used sharp-$k$ filter fails to reproduce the behaviour of the halo mass function at low masses measured from simulations of models with a sharp truncation in the linear power spectrum. We show that the predictions with our new filter agree with the simulation results over a wider range of halo masses for both damped and undamped power spectra than is the case with the sharp-$k$ and real-space top-hat filters., Comment: 16 pages, 7 figures, LaTeX. Minor changes, one reference added. Matches the version published on JCAP
- Published
- 2018
- Full Text
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11. N-body simulations of structure formation in thermal inflation cosmologies
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Carlton M. Baugh, Silvia Pascoli, Baojiu Li, Matteo Leo, Leo M, Baugh CM, Li BJ, and Pascoli S
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Physics ,Inflation (cosmology) ,Structure formation ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,010308 nuclear & particles physics ,Matter power spectrum ,Halo mass function ,Dark matter ,Inflation, large scale structure formation ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,Redshift ,0103 physical sciences ,Galaxy formation and evolution ,Halo ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Thermal inflation models (which feature two inflationary stages) can display damped primordial curvature power spectra on small scales which generate damped matter fluctuations. For a reasonable choice of parameters, thermal inflation models naturally predict a suppression of the matter power spectrum on galactic and sub-galactic scales, mimicking the effect of warm or interacting dark matter. Matter power spectra in these models are also characterised by an excess of power (w.r.t. the standard $\Lambda$CDM power spectrum) just below the suppression scale. By running a suite of N-body simulations we investigate the non-linear growth of structure in models of thermal inflation. We measure the non-linear matter power spectrum and extract halo statistics, such as the halo mass function, and compare these quantities with those predicted in the standard $\Lambda$CDM model and in other models with damped matter fluctuations. We find that the thermal inflation models considered here produce measurable differences in the matter power spectrum from $\Lambda$CDM at redshifts $z>5$, while the halo mass functions are appreciably different at all redshifts. The halo mass function at $z=0$ for thermal inflation displays an enhancement of around $\sim 20\%$ w.r.t. $\Lambda$CDM and a damping at lower halo masses, with the position of the enhancement depending on the value of the free parameter in the model. The enhancement in the halo mass function (w.r.t. $\Lambda$CDM ) increases with redshift, reaching $\sim 40\%$ at $z=5$. We also study the accuracy of the analytical Press-Schechter approach, using different filters to smooth the density field, to predict halo statistics for thermal inflation. We find that the predictions with the smooth-$k$ filter agree with the simulation results over a wider range of halo masses than is the case with other filters commonly used in the literature., Comment: 26 pages, 19 figures. LaTeX. Major changes: new section added (Section 6). Minor changes: changes in figure layout, some references added
- Published
- 2018
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12. Nonlinear growth of structure in cosmologies with damped matter fluctuations
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Matteo Leo, Carlton M. Baugh, Silvia Pascoli, Baojiu Li, Leo M, Baugh CM, Li BJ, and Pascoli S
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Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Cold dark matter ,010308 nuclear & particles physics ,Halo mass function ,FOS: Physical sciences ,Spectral density ,Astronomy and Astrophysics ,Lambda-CDM model ,01 natural sciences ,Transfer function ,Spectral line ,Large scale structure formation ,Nonlinear system ,0103 physical sciences ,Wavenumber ,Statistical physics ,010303 astronomy & astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We investigate the nonlinear evolution of structure in variants of the standard cosmological model which display damped density fluctuations relative to cold dark matter (e.g. in which cold dark matter is replaced by warm or interacting DM). Using N-body simulations, we address the question of how much information is retained from different scales in the initial linear power spectrum following the nonlinear growth of structure. We run a suite of N-body simulations with different initial linear matter power spectra to show that, once the system undergoes nonlinear evolution, the shape of the linear power spectrum at high wavenumbers does not affect the non-linear power spectrum, while it still matters for the halo mass function. Indeed, we find that linear power spectra which differ from one another only at wavenumbers larger than their half-mode wavenumber give rise to (almost) identical nonlinear power spectra at late times, regardless of the fact that they originate from different models with damped fluctuations. On the other hand, the halo mass function is more sensitive to the form of the linear power spectrum. Exploiting this result, we propose a two parameter model of the transfer function in generic damped scenarios, and show that this parametrisation works as well as the standard three parameter models for the scales on which the linear spectrum is relevant., 18 pages, 20 figures. LateX. Minor changes, references added. Matches the version published on JCAP
- Published
- 2017
13. The effect of thermal velocities on structure formation in N-body simulations of warm dark matter
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Silvia Pascoli, Matteo Leo, Carlton M. Baugh, Baojiu Li, Leo M, Baugh CM, Li BJ, and Pascoli S
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Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Structure formation ,010308 nuclear & particles physics ,FOS: Physical sciences ,Astronomy and Astrophysics ,01 natural sciences ,7. Clean energy ,Spectral line ,Computational physics ,Power (physics) ,Large scale structure formation ,Numerical noise ,13. Climate action ,0103 physical sciences ,Thermal ,Warm dark matter ,Wavenumber ,010303 astronomy & astrophysics ,Noise (radio) ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We investigate the impact of thermal velocities in N-body simulations of structure formation in warm dark matter models. Adopting the commonly used approach of adding thermal velocities, randomly selected from a Fermi-Dirac distribution, to the gravitationally-induced velocities of the simulation particles, we compare the matter and velocity power spectra measured from CDM and WDM simulations, in the latter case with and without thermal velocities. This prescription for adding thermal velocities introduces numerical noise into the initial conditions, which influences structure formation. At early times, the noise affects dramatically the power spectra measured from simulations with thermal velocities, with deviations of the order of $\sim \mathcal{O}(10)$ (in the matter power spectra) and of the order of $\sim \mathcal{O}(10^2)$ (in the velocity power spectra) compared to those extracted from simulations without thermal velocities. At late times, these effects are less pronounced with deviations of less than a few percent. Increasing the resolution of the N-body simulation shifts these discrepancies to higher wavenumbers. We also find that spurious haloes start to appear in simulations which include thermal velocities at a mass that is $\sim$3 times larger than in simulations without thermal velocities., Comment: 31 pages, 31 figures, LaTeX. Minor changes, references added. Matches the version published on JCAP
- Published
- 2017
14. Weak lensing by voids in modified lensing potentials
- Author
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Baojiu Li, Carlton M. Baugh, Alexandre Barreira, Marius Cautun, Silvia Pascoli, Barreira A, Cautun M, Li BJ, Baugh CM, and Pascoli S
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Physics ,Gravity (chemistry) ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,010308 nuclear & particles physics ,Direct effects ,Dark matter ,Fifth force ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Approx ,01 natural sciences ,Large scale structure formation ,0103 physical sciences ,Physics::Space Physics ,Halo ,010303 astronomy & astrophysics ,Weak gravitational lensing ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We study lensing by voids in Cubic Galileon and Nonlocal gravity cosmologies, which are examples of theories of gravity that modify the lensing potential. We find voids in the dark matter and halo density fields of N-body simulations and compute their lensing signal analytically from the void density profiles, which we show are well fit by a simple analytical formula. In the Cubic Galileon model, the modifications to gravity inside voids are not screened and they approximately double the size of the lensing effects compared to GR. The difference is largely determined by the direct effects of the fifth force on lensing and less so by the modified density profiles. For this model, we also discuss the subtle impact on the force and lensing calculations caused by the screening effects of haloes that exist in and around voids. In the Nonlocal model, the impact of the modified density profiles and the direct modifications to lensing are comparable, but they boost the lensing signal by only $\approx 10\%$, compared with that of GR. Overall, our results suggest that lensing by voids is a promising tool to test models of gravity that modify lensing., Comment: 19 pages, 8 figures. v2 matches the version published in JCAP
- Published
- 2015
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15. Coating seeds with biocontrol bacteria-loaded sodium alginate/pectin hydrogel enhances the survival of bacteria and control efficacy against soil-borne vegetable diseases.
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Abdukerim R, Li L, Li JH, Xiang S, Shi YX, Xie XW, Chai AL, Fan TF, and Li BJ
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- Fusarium drug effects, Soil chemistry, Soil Microbiology, Microbial Viability drug effects, Plant Roots microbiology, Biofilms drug effects, Biofilms growth & development, Alginates chemistry, Alginates pharmacology, Seeds chemistry, Hydrogels chemistry, Hydrogels pharmacology, Bacillus subtilis, Cucumis sativus microbiology, Plant Diseases microbiology, Plant Diseases prevention & control, Pectins chemistry
- Abstract
Microbial seed coatings serve as effective, labor-saving, and ecofriendly means of controlling soil-borne plant diseases. However, the survival of microbial agents on seed surfaces and in the rhizosphere remains a crucial challenge. In this work, we embedded a biocontrol bacteria (Bacillus subtilis ZF71) in sodium alginate (SA)/pectin (PC) hydrogel as a seed coating agent to control Fusarium root rot in cucumber. The formula of SA/PC hydrogel was optimized with the highest coating uniformity of 90 % in cucumber seeds. SA/PC hydrogel was characterized using rheological, gel content, and water content tests, thermal gravimetric analysis, and Fourier transform infrared spectroscopy. Bacillus subtilis ZF71 within the SA/PC hydrogel network formed a biofilm-like structure with a high viable cell content (8.30 log CFU/seed). After 37 days of storage, there was still a high number of Bacillus subtilis ZF71 cells (7.23 log CFU/seed) surviving on the surface of cucumber seeds. Pot experiments revealed a higher control efficiency against Fusarium root rot in ZF71-SA/PC cucumber seeds (53.26 %) compared with roots irrigated with a ZF71 suspension. Overall, this study introduced a promising microbial seed coating strategy based on biofilm formation that improved performance against soil-borne plant diseases., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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16. Recent advances in catalytic enantioselective construction of monofluoromethyl-substituted stereocenters.
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Li BJ, Ruan YL, Zhu L, Zhou J, and Yu JS
- Abstract
Chiral organofluorine compounds featuring a monofluoromethyl (CH
2 F)-substituted stereocenter are often encountered in a number of drugs and bioactive molecules. Consequently, the development of catalytic asymmetric methods for the enantioselective construction of CH2 F-substituted stereocenters has made great progress over the past two decades, and a variety of enantioselective transformations have been accordingly established. According to the types of fluorinated reagents or substrates employed, these protocols can be divided into the following major categories: (i) enantioselective ring opening of epoxides or azetidinium salts by fluoride anions; (ii) asymmetric monofluoromethylation with 1-fluorobis(phenylsulfonyl)methane; (iii) asymmetric fluorocyclization of functionalized alkenes with Selectfluor; and (iv) asymmetric transformations involving α-CH2 F ketones, α-CH2 F alkenes, or other CH2 F-containing substrates. This feature article aims to summarize these recent advances and discusses the possible reaction mechanisms, advantages and limitations of each protocol and their applications. Synthetic opportunities still open for further development are illustrated as well. This review article will be an inspiration for researchers engaged in asymmetric catalysis, organofluorine chemistry, and medicinal chemistry.- Published
- 2024
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17. AUXIN RESPONSE FACTOR 2 mediates repression of strawberry receptacle ripening via auxin-ABA interplay.
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Li BJ, Shi YN, Xiao YN, Jia HR, Yang XF, Dai ZR, Sun YF, Shou JH, Jiang GH, Grierson D, and Chen KS
- Abstract
Cultivated strawberry (Fragaria × ananassa) is a popular, economically important fruit. The ripening of the receptacle (pseudocarp), the main edible part, depends on endogenously produced abscisic acid (ABA) and is suppressed by the high level of auxin produced from achenes (true fruit) during early development. However, the mechanism whereby auxin regulates receptacle ripening through inhibiting ABA biosynthesis remains unclear. Here, we identified AUXIN RESPONSE FACTOR 2 (FaARF2), which showed decreased expression with reduced auxin content in the receptacle, leading to increased ABA levels and accelerated ripening. Dual-luciferase, yeast one-hybrid, and electrophoretic mobility shift assays demonstrated that FaARF2 could bind to the AuxRE element in the promoter of 9-CIS-EPOXYCAROT-ENOID DIOXYGENASE 1 (FaNCED1), a key ABA biosynthetic gene, to suppress its transcriptional activity. Transiently overexpressing FaARF2 in the receptacles decreased FaNCED1 expression and ABA levels, resulting in inhibition of receptacle ripening and of development of quality attributes, such as pigmentation, aroma, and sweetness. This inhibition caused by overexpressing FaARF2 was partially recovered by the injection of exogenous ABA; conversely, transient silencing of FaARF2 using RNA interference produced the opposite results. The negative targeting of FaNCED1 by FaARF2 is a key link between auxin-ABA interactions and regulation of strawberry ripening., (© The Author(s) 2024. Published by Oxford University Press on behalf of American Society of Plant Biologists.)
- Published
- 2024
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18. Two-Dimensional MOF Constructed by a Binuclear-Copper Motif for High-Performance Electrocatalytic NO Reduction to NH 3 .
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Luo R, Li BJ, Wang ZP, Chen MG, Zhuang GL, Li Q, Tong JP, Wang WT, Fan YH, and Shao F
- Abstract
Ambient electrochemical NO reduction presents a dual solution for sustainable NO reduction and NH
3 synthesis. However, their complex kinetics and energy demands necessitate high-performance electrocatalysts to ensure effective and selective process outcomes. Herein, we report that a two-dimensional Cu-based metal-organic framework (MOF), {[Cu(HL)]·H2 O}n , ( Cu-OUC , H3 L = 5-(2'-carboxylphenoxy)isophthalic acid) acts as a stable electrocatalyst with high efficiency for NO-to-NH3 conversion. Electrochemical experimental studies showed that in 0.1 M K2 SO4 solution, the as-prepared Cu-OUC achieved a peak Faradaic efficiency of 96.91% and a notable NH3 yield as high as 3415.82 μg h-1 mg-1 . The Zn-NO battery in aqueous solution can produce electricity possessing a power density of 2.04 mW cm-2 while simultaneously achieving an NH3 yield of 616.92 μg h-1 mg-1 . Theoretical calculations revealed that the surface of Cu-OUC effectively facilitates NO activation through a two-way charge transfer mechanism of "electron acceptance and donation", with the *NO formation step being the potential-determining stage. The study pioneers the use of a MOF as an electrocatalyst for ambient NO-to-NH3 conversion., Competing Interests: The authors declare no competing financial interest., (© 2024 The Authors. Published by American Chemical Society.)- Published
- 2024
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19. Seed coating with biocontrol bacteria encapsulated in sporopollenin exine capsules for the control of soil-borne plant diseases.
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Fan TF, Luan YY, Xiang S, Shi YX, Xie XW, Chai AL, Li L, and Li BJ
- Abstract
Coating seeds with biocontrol agents represents an effective approach for managing soil-borne plant diseases. However, improving the viability of biocontrol microorganisms on the seed surface or in the rhizosphere remains a big challenge due to biotic and abiotic stresses. In this work, we developed a microbial seed coating strategy that uses sporopollenin exine capsules (SECs) as carriers for the encapsulation of the biofilm-like biocontrol bacteria. SECs was extracted from camellia bee pollen, and then characterized by Fourier Transform infrared spectroscopy (FTIR), elemental analysis and thermal gravity analysis (TG). The Paenibacillus polymyxa ZF129, a biocontrol bacterium, was introduced into SECs using the vacuum-incubation method and characterized by scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). Notably, the ZF129 cell formed a biofilm-like structure inside the SECs, which enhanced their tolerance to acidic stress. As a proof of concept, we applied ZF129-loaded SECs to coat pak choi seeds using a straightforward plate-shaking technique. The coated seeds demonstrated a high control efficacy of up to 60.46 % against clubroot disease. Overall, this study sheds light on the application of SECs as promising carrier for the encapsulation of biofilm-like biocontrol bacteria, further augmenting the biocontrol functionality of microbial seed coating., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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20. Exploring the links between type and content of virtual background use during videoconferencing and videoconference fatigue.
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Li BJ and Zhang H
- Abstract
The popularity of remote working in recent years has led to a rise in the use of videoconferencing tools. However, these communication tools have also given rise to a phenomenon known as videoconference fatigue (VF). Using the limited capacity model of motivated mediated message processing and impression management theory as the theoretical framework, this study explores how different types and content of virtual backgrounds in videoconferencing influence people's VF and well-being. A survey of 610 users of videoconferencing tools revealed significant variations in the content and type of virtual backgrounds used during videoconferences. Our findings highlight three main points: first, there is a significant relationship between the use of virtual backgrounds and VF; second, pairwise comparisons showed that the type of virtual background significantly influences the amount of VF experienced by users; third, the content of virtual backgrounds also significantly impacts the level of VF experienced by users. These results suggest that careful selection of virtual backgrounds can mitigate VF and improve user well-being. Theoretical and practical implications are discussed., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Li and Zhang.)
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- 2024
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21. LncRNA AFAP1-AS1 Promotes Oral Squamous Cell Carcinoma Development by Ubiquitin-Mediated Proteolysis.
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Li BJ, Ren FH, Zhang C, Zhang XW, and Jiao XH
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- Humans, Animals, Mice, Cell Line, Tumor, Proteolysis, Gene Expression Regulation, Neoplastic, Cell Proliferation genetics, Real-Time Polymerase Chain Reaction, Tongue Neoplasms genetics, Tongue Neoplasms pathology, Tongue Neoplasms metabolism, Mice, Nude, Prognosis, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, Mouth Neoplasms genetics, Mouth Neoplasms pathology, Carcinoma, Squamous Cell genetics, Carcinoma, Squamous Cell pathology, Ubiquitin metabolism
- Abstract
Background and Purpose: Long noncoding RNA (lncRNA) dysregulation has been reported to play a pivotal role in the development of cancers. In this study, we aimed to screen the key lncRNA in oral squamous cell carcinoma (OSCC) via bioinformatics analysis and further validate the function of lncRNA in vitro and in vivo., Methods: Bioinformatics analysis was conducted to identify differentially expressed lncRNAs between control and OSCC samples. Quantitative real-time-polymerase chain reaction was employed to detect the expression of differentially expressed lncRNAs in human tongue squamous cell carcinoma and human oral keratinocytes cell lines. The biological function of lncRNA and its mechanism were examined via the experimental assessment of the cell lines with the lncRNA overexpressed and silenced. Additionally, to further explore the function of lncRNA in the progression of OSCC, xenograft tumour mouse models were established using 25 mice (5 groups, each with 5 mice). Tumour formation was observed at 2 weeks after the cell injection, and the tumours were resected at 5 weeks post-implantation., Results: Two lncRNAs, LINC00958 and AFAP1-AS1, were found to be correlated with the prognosis of OSCC. The results of the quantitative real-time-polymerase chain reaction indicated that the 2 lncRNAs were highly expressed in OSCC. In combination with the previous literature, we found AFAP1-AS1 to be a potentially important biomarker for OSCC. Thus, we further investigated its biological function and found that AFAP1-AS1 silencing inhibited cell proliferation, migration, and invasion whereas AFAP1-AS1 overexpression reversed the effect of AFAP1-AS1 silencing (P < .05). Mechanism analysis revealed that AFAP1-AS1 regulated the development of OSCC through the ubiquitin-mediated proteolysis pathway., Conclusions: AFAP1-AS1 is an oncogene that aggravates the development of OSCC via the ubiquitin-mediated proteolysis pathway. It also provides a novel potential therapy for OSCC., Competing Interests: Conflict of interest None disclosed., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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22. Alcohol drinking triggered decrease of oxidative balance score is associated with high all-cause and cardiovascular mortality in hypertensive individuals: findings from NHANES 1999-2014.
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Zhang YJ, Song JJ, Zhan JH, Zhou CL, Li A, Wang MQ, Li BJ, Ding CC, Zhang YW, Tan ZH, Cheng ZH, and Huang X
- Abstract
Background: Oxidative stress is closely associated with hypertensive outcomes. The oxidative balance score (OBS) measures oxidative stress exposure from dietary and lifestyle elements. The objective of this study was to investigate the association between OBS and mortality in hypertensive patients., Methods: This study included 7823 hypertensive patients from the National Health and Nutrition Examination Survey (NHANES) 1999-2014. Several models, including Cox regression, restricted cubic splines (RCS), Kaplan‒Meier survival analysis, subgroup, and sensitivity analyses, were exploited to investigate the relationship between OBS and the risk of mortality., Results: Controlling for all potential confounders, a significantly inverse association was observed between elevated OBS and all-cause [hazard ratio (HR) = 0.90, 95% CI: 0.85-0.95] and cardiovascular mortality (HR = 0.85, 95% CI: 0.75-0.95). With adjustment for covariates, significant associations between lifestyle OBS and mortality risks diminished, whereas associations between dietary OBS and these mortality risks remained robust (all-cause mortality: HR = 0.91, 95% CI: 0.86-0.96; cardiovascular mortality: HR = 0.85, 95% CI: 0.76-0.96). RCS demonstrated a linear relationship between OBS and all-cause and cardiovascular mortality risk ( P
nonlinear = 0.088 and Pnonlinear = 0.447, respectively). Kaplan‒Meier curves demonstrated that the mortality rate was lower with a high OBS ( P < 0.001). The consistency of the association was demonstrated in subgroup and sensitivity analyses. RCS after stratification showed that among current drinkers, those with higher OBS had a lower risk of mortality compared with former or never drinkers., Conclusions: In hypertensive individuals, there was a negative association between OBS and all-cause and cardiovascular mortality. Encouraging hypertensive individuals, especially those currently drinking, to maintain high levels of OBS may be beneficial in improving their prognosis., (© 2024 JGC All rights reserved; www.jgc301.com.)- Published
- 2024
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23. Discussion on clinical application and regularity of the theory of "mind-regulating" in clinical acupuncture and moxibustion treatment.
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Zeng YH, Fu YB, Li B, Yuan F, Zhao BC, Wang YZ, Song YQ, Li BJ, and Shen LB
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- Humans, Acupuncture Points, Medicine, Chinese Traditional, Nervous System Diseases therapy, Moxibustion, Acupuncture Therapy
- Abstract
The active role of "Shen" (mind) in the process of disease treatment has always been valued by scholars of traditional Chinese medicine (TCM). "Tiaoshen" (mind-regulating) is regarded as the fundamental component of TCM therapy. "Mind-regulating" acupuncture and moxibustion therapy, as a treatment method for both body and mind, is consistent with the present bio-psycho-social medical model. In recent years, a large number of clinical studies have confirmed the exact efficacy of "mind-regulating" acupuncture and moxibustion therapy. This article reviewed the clinical applications of that in psychosomatic diseases, neurological diseases, and digestive diseases over the last decade. This article also summarized the research progress of various "mind-regulating" acupuncture and moxibustion methods, investigated the theoretical connotations of "Tongdu Tiaoshen" (dredging Governor Vessel and regulating mind) acupuncture, "Shugan Tiaoshen" (soothing liver and regulating mind) acupuncture, and the "Tiaoshen needling technique" (mind-regulating needling technique), and generalized the main acupoint selection rules. Lastly, future development directions were provided for the theoretical basis of clinical application of "mind-regulating" acupuncture and moxibustion therapy for further improvement.
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- 2024
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24. Transcriptomic decoding of regional cortical vulnerability to major depressive disorder.
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Zhu J, Chen X, Lu B, Li XY, Wang ZH, Cao LP, Chen GM, Chen JS, Chen T, Chen TL, Cheng YQ, Chu ZS, Cui SX, Cui XL, Deng ZY, Gong QY, Guo WB, He CC, Hu ZJ, Huang Q, Ji XL, Jia FN, Kuang L, Li BJ, Li F, Li HX, Li T, Lian T, Liao YF, Liu XY, Liu YS, Liu ZN, Long YC, Lu JP, Qiu J, Shan XX, Si TM, Sun PF, Wang CY, Wang HN, Wang X, Wang Y, Wang YW, Wu XP, Wu XR, Wu YK, Xie CM, Xie GR, Xie P, Xu XF, Xue ZP, Yang H, Yu H, Yuan ML, Yuan YG, Zhang AX, Zhao JP, Zhang KR, Zhang W, Zhang ZJ, Yan CG, and Yu Y
- Subjects
- Humans, Female, Male, Adult, Cerebral Cortex physiopathology, Cerebral Cortex diagnostic imaging, Cerebral Cortex metabolism, Middle Aged, Magnetic Resonance Imaging, Gene Expression Profiling, Depressive Disorder, Major genetics, Depressive Disorder, Major physiopathology, Transcriptome
- Abstract
Previous studies in small samples have identified inconsistent cortical abnormalities in major depressive disorder (MDD). Despite genetic influences on MDD and the brain, it is unclear how genetic risk for MDD is translated into spatially patterned cortical vulnerability. Here, we initially examined voxel-wise differences in cortical function and structure using the largest multi-modal MRI data from 1660 MDD patients and 1341 controls. Combined with the Allen Human Brain Atlas, we then adopted transcription-neuroimaging spatial correlation and the newly developed ensemble-based gene category enrichment analysis to identify gene categories with expression related to cortical changes in MDD. Results showed that patients had relatively circumscribed impairments in local functional properties and broadly distributed disruptions in global functional connectivity, consistently characterized by hyper-function in associative areas and hypo-function in primary regions. Moreover, the local functional alterations were correlated with genes enriched for biological functions related to MDD in general (e.g., endoplasmic reticulum stress, mitogen-activated protein kinase, histone acetylation, and DNA methylation); and the global functional connectivity changes were associated with not only MDD-general, but also brain-relevant genes (e.g., neuron, synapse, axon, glial cell, and neurotransmitters). Our findings may provide important insights into the transcriptomic signatures of regional cortical vulnerability to MDD., (© 2024. The Author(s).)
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- 2024
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25. Auxin response factors: important keys for understanding regulatory mechanisms of fleshy fruit development and ripening.
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Li BJ, Bao RX, Shi YN, Grierson D, and Chen KS
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Auxin response transcription factors (ARFs) form a large gene family, many of whose members operate at the final step of the auxin signaling pathway. ARFs participate directly in many aspects of plant growth and development. Here we summarize recent advances in understanding the roles of ARFs in regulating aspects of fleshy fruit development and ripening. ARFs play a crucial role in regulating fruit size, color, nutrients, texture, yield, and other properties that ultimately influence the ripening and quality of important crops such as tomato, apple, strawberry, and peach. ARFs impact these processes acting as positive, negative, or bidirectional regulators via phytohormone-dependent or -independent mechanisms. In the phytohormone-dependent pathway, ARFs act as a central hub linking interactions with multiple phytohormones generating diverse effects. The three domains within ARFs, namely the DNA-binding domain, the middle region, and the carboxy-terminal dimerization domain, exhibit distinct yet overlapping functions, contributing to a range of mechanisms mediated by ARFs. These findings not only provide a profound understanding of ARF functions, but also raise new questions. Further exploration can lead to a more comprehensive understanding of the regulatory mechanisms of fleshy fruit development and ripening mediated by ARFs., (© The Author(s) 2024. Published by Oxford University Press on behalf of Nanjing Agricultural University.)
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- 2024
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26. Pyridine-borane complex-catalysed thioesterification: the direct conversion of carboxylic acids to thioesters.
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Wang MC, Yang XY, Zhou JF, Zhang WX, and Li BJ
- Abstract
Thioesters are a common class of biologically active fragments and synthetically useful building blocks. An attractive synthetic approach would be to use simple and bench-stable carboxylic acids as a coupling partner. Herein, we present a 4-bromo pyridine-borane complex as a catalyst for the direct coupling of carboxylic acids with thiols. A wide range of thioesters with good functional group compatibility could be prepared via this metal-free approach. The merit of this strategy is exemplified by the modification of carboxylic acid-containing drugs.
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- 2024
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27. Rhodium-Catalyzed Highly Enantioselective Hydroboration of Acyclic Tetrasubstituted Alkenes Directed by an Amide.
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Lu HX, Wang C, Gao TT, Lin EZ, Lu SL, Hong X, and Li BJ
- Abstract
Although progress has been made in enantioselective hydroboration of di- and trisubstituted alkenes over the past decades, enantioselective hydroboration of tetrasubstituted alkenes with high diastereo- and enantioselectivities continues as an unmet challenge since the 1950s due to its extremely low reactivity and the difficulties to simultaneously control the regio- and stereoselectivity of a tetrasubstituted alkene. Here, we report highly regio-, diastereo-, and enantioselective catalytic hydroboration of diverse acyclic tetrasubstituted alkenes. The delicate interplay of an electron-rich rhodium complex and coordination-assistance forms a highly adaptive catalyst that effectively overcomes the low reactivity and controls the stereoselectivity. The generality of the catalyst system is exemplified by its efficacy across various tetrasubstituted alkenes with diverse steric and electronic properties.
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- 2024
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28. Associations between immune cell phenotypes and lung cancer subtypes: insights from mendelian randomization analysis.
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Zheng JM, Lou CX, Huang YL, Song WT, Luo YC, Mo GY, Tan LY, Chen SW, and Li BJ
- Subjects
- Humans, Carcinoma, Squamous Cell genetics, Carcinoma, Squamous Cell immunology, Receptors, CCR2 genetics, CD8-Positive T-Lymphocytes immunology, CD28 Antigens genetics, Mendelian Randomization Analysis, Lung Neoplasms genetics, Lung Neoplasms immunology, Phenotype, Adenocarcinoma of Lung genetics, Adenocarcinoma of Lung immunology
- Abstract
Introduction: Lung cancer is a common malignant tumor, and different types of immune cells may have different effects on the occurrence and development of lung cancer subtypes, including lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD). However, the causal relationship between immune phenotype and lung cancer is still unclear., Methods: This study utilized a comprehensive dataset containing 731 immune phenotypes from the European Bioinformatics Institute (EBI) to evaluate the potential causal relationship between immune phenotypes and LUSC and LUAD using the inverse variance weighted (IVW) method in Mendelian randomization (MR). Sensitivity analyses, including MR-Egger intercept, Cochran Q test, and others, were conducted for the robustness of the results. The study results were further validated through meta-analysis using data from the Transdisciplinary Research Into Cancer of the Lung (TRICL) data. Additionally, confounding factors were excluded to ensure the robustness of the findings., Results: Among the final selection of 729 immune cell phenotypes, three immune phenotypes exhibited statistically significant effects with LUSC. CD28 expression on resting CD4 regulatory T cells (OR 1.0980, 95% CI: 1.0627-1.1344, p < 0.0001) and CD45RA + CD28- CD8 + T cell %T cell (OR 1.0011, 95% CI: 1.0007; 1.0015, p < 0.0001) were associated with increased susceptibility to LUSC. Conversely, CCR2 expression on monocytes (OR 0.9399, 95% CI: 0.9177-0.9625, p < 0.0001) was correlated with a decreased risk of LUSC. However, no significant causal relationships were established between any immune cell phenotypes and LUAD., Conclusion: This study demonstrates that specific immune cell types are associated with the risk of LUSC but not with LUAD. While these findings are derived solely from European populations, they still provide clues for a deeper understanding of the immunological mechanisms underlying lung cancer and may offer new directions for future therapeutic strategies and preventive measures., (© 2024. The Author(s).)
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- 2024
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29. A Supramolecular Assembly of EGCG for Long-Term Treatment of Allergic Rhinitis.
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Zhang FZ, Tan M, Zeng J, Qi XW, Zhang YT, Che YT, Zhang S, and Li BJ
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- Animals, Mice, Allergens therapeutic use, Administration, Intranasal, Immunoglobulin E therapeutic use, Rhinitis, Allergic drug therapy, Catechin analogs & derivatives
- Abstract
Allergic rhinitis (AR) is a type-I hypersensitivity disease mediated by immunoglobulin E (IgE). Although antihistamines, glucocorticoids, leukotriene receptor antagonists, and other drugs are widely used to treat AR, the various adverse side effects of long-term use of these drugs should not be ignored. Therefore, more effective and safe natural alternative strategies are urgently needed. To this end, this study designed a nanosupramolecular delivery system composed of β-cyclodextrin supramolecular polymer (PCD), thiolated chitosan (TCS), and natural polyphenol epigallocatechin gallate (EGCG) for intranasal topical continuous treatment of AR. The TCS/PCD@EGCG nanocarriers exhibited an excellent performance in terms of retention and permeability in the nasal mucosa and released the vast majority of EGCG responsively in the nasal microenvironment, thus resulting in the significantly high antibacterial and antioxidant capacities. According to the in vitro model, compared with free EGCG, TCS/PCD@EGCG inhibited mast cell activity and abnormal histamine secretion in a more long-term and sustained manner. According to the in vivo model, whether in the presence of continuous or intermittent administration, TCS/PCD@EGCG substantially inhibited the secretion of allergenic factors and inflammatory factors, mitigated the pathological changes of nasal mucosa, alleviated the symptoms of rhinitis in mice, and produced a satisfactory therapeutic effect on AR. In particular, the therapeutic effect of TCS/PCD@EGCG systems were even superior to that of budesonide during intermittent treatment. Therefore, the TCS/PCD@EGCG nanocarrier is a potential long-lasting antiallergic medicine for the treatment of AR.
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- 2024
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30. MicroRNAs: A novel signature in the metastasis of esophageal squamous cell carcinoma.
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Wei QY, Jin F, Wang ZY, Li BJ, Cao WB, Sun ZY, and Mo SJ
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- Humans, Epigenomics, MicroRNAs genetics, Esophageal Squamous Cell Carcinoma genetics, Esophageal Neoplasms genetics, Carcinoma
- Abstract
Esophageal squamous cell carcinoma (ESCC) is a malignant epithelial tumor, characterized by squamous cell differentiation, it is the sixth leading cause of cancer-related deaths globally. The increased mortality rate of ESCC patients is predominantly due to the advanced stage of the disease when discovered, coupled with higher risk of metastasis, which is an exceedingly malignant characteristic of cancer, frequently leading to a high mortality rate. Unfortunately, there is currently no specific and effective marker to predict and treat metastasis in ESCC. MicroRNAs (miRNAs) are a class of small non-coding RNA molecules, approximately 22 nucleotides in length. miRNAs are vital in modulating gene expression and serve pivotal regulatory roles in the occurrence, progression, and prognosis of cancer. Here, we have examined the literature to highlight the intimate correlations between miRNAs and ESCC metastasis, and show that ESCC metastasis is predominantly regulated or regulated by genetic and epigenetic factors. This review proposes a potential role for miRNAs as diagnostic and therapeutic biomarkers for metastasis in ESCC metastasis, with the ultimate aim of reducing the mortality rate among patients with ESCC., Competing Interests: Conflict-of-interest statement: Mo SJ has nothing to disclose., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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31. One-Step Electrochemical Ethylene-to-Ethylene Glycol Conversion over a Multitasking Molecular Catalyst.
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Li AZ, Yuan BJ, Xu M, Wang Y, Zhang C, Wang X, Wang X, Li J, Zheng L, Li BJ, and Duan H
- Abstract
Ethylene glycol is an essential commodity chemical with high demand, which is conventionally produced via thermocatalytic oxidation of ethylene with huge fossil fuel consumption and CO
2 emission. The one-step electrochemical approach offers a sustainable route but suffers from reliance on noble metal catalysts, low activity, and mediocre selectivity. Herein, we report a one-step electrochemical oxidation of ethylene to ethylene glycol over an earth-abundant metal-based molecular catalyst, a cobalt phthalocyanine supported on a carbon nanotube (CoPc/CNT). The catalyst delivers ethylene glycol with 100% selectivity and 1.78 min-1 turnover frequency at room temperature and ambient pressure, more competitive than those obtained over palladium catalysts. Experimental data demonstrate that the catalyst orchestrates multiple tasks in sequence, involving electrochemical water activation to generate high-valence Co-oxo species, ethylene epoxidation to afford an ethylene oxide intermediate via oxygen transfer, and eventually ring-opening of ethylene oxide to ethylene glycol facilitated by in situ formed Lewis acid site. This work offers a great opportunity for commodity chemicals synthesis based on a one-step, earth-abundant metal-catalyzed, and renewable electricity-driven route.- Published
- 2024
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32. Bile acids inhibit ferroptosis sensitivity through activating farnesoid X receptor in gastric cancer cells.
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Liu CX, Gao Y, Xu XF, Jin X, Zhang Y, Xu Q, Ding HX, Li BJ, Du FK, Li LC, Zhong MW, Zhu JK, and Zhang GY
- Subjects
- Animals, Humans, Bile Acids and Salts, Signal Transduction, Stomach Neoplasms, Ferroptosis
- Abstract
Background: Gastric cancer (GC) is associated with high mortality rates. Bile acids (BAs) reflux is a well-known risk factor for GC, but the specific mechanism remains unclear. During GC development in both humans and animals, BAs serve as signaling molecules that induce metabolic reprogramming. This confers additional cancer phenotypes, including ferroptosis sensitivity. Ferroptosis is a novel mode of cell death characterized by lipid peroxidation that contributes universally to malignant progression. However, it is not fully defined if BAs can influence GC progression by modulating ferroptosis., Aim: To reveal the mechanism of BAs regulation in ferroptosis of GC cells., Methods: In this study, we treated GC cells with various stimuli and evaluated the effect of BAs on the sensitivity to ferroptosis. We used gain and loss of function assays to examine the impacts of farnesoid X receptor (FXR) and BTB and CNC homology 1 (BACH1) overexpression and knockdown to obtain further insights into the molecular mechanism involved., Results: Our data suggested that BAs could reverse erastin-induced ferroptosis in GC cells. This effect correlated with increased glutathione (GSH) concentrations, a reduced GSH to oxidized GSH ratio, and higher GSH peroxidase 4 (GPX4) expression levels. Subsequently, we confirmed that BAs exerted these effects by activating FXR, which markedly increased the expression of GSH synthetase and GPX4. Notably, BACH1 was detected as an essential intermediate molecule in the promotion of GSH synthesis by BAs and FXR. Finally, our results suggested that FXR could significantly promote GC cell proliferation, which may be closely related to its anti-ferroptosis effect., Conclusion: This study revealed for the first time that BAs could inhibit ferroptosis sensitivity through the FXR-BACH1-GSH-GPX4 axis in GC cells. This work provided new insights into the mechanism associated with BA-mediated promotion of GC and may help identify potential therapeutic targets for GC patients with BAs reflux., Competing Interests: Conflict-of-interest statement: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
- Published
- 2024
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33. Sequential 2.5 mg letrozole/FSH therapy is more effective for promoting pregnancy in infertile women with PCOS: a pragmatic randomized controlled trial.
- Author
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Chen LJ, Liu Y, Zhang L, Li JY, Xiong WQ, Li T, Ding H, and Li BJ
- Subjects
- Pregnancy, Female, Humans, Young Adult, Adult, Letrozole therapeutic use, Prospective Studies, Fertility Agents, Female therapeutic use, Ovulation Induction methods, Follicle Stimulating Hormone therapeutic use, Follicle Stimulating Hormone, Human therapeutic use, Infertility, Female complications, Infertility, Female drug therapy, Polycystic Ovary Syndrome complications, Polycystic Ovary Syndrome drug therapy
- Abstract
Study Question: In infertile women with polycystic ovary syndrome (PCOS), is the sequential use of letrozole 2.5 mg/follicle stimulating hormone(FSH) more effective than letrozole 5 mg/FSH in stimulating ovulation and promoting pregnancy?, Research Design and Methods: The study was designed as a prospective, single-center, randomized, controlled pragmatic clinical trial. 220 infertile women between the ages of 20 and 40, who matched the Rotterdam criteria for PCOS and had no other identified reasons for infertility were enrolled from April 2023 to July 2023.The participants were randomly assigned to two groups in a 1:1 ratio. One group received 2.5 mg of letrozole on cycle days 3-7 with a sequential injection of 75 IU FSH on cycle days 8-10 (n = 110), while the other group received 5 mg of letrozole on cycle days 3-7 with a sequential injection of 75 IU FSH on cycle days 8-10 (n = 110). The duration of FSH treatment varied depending on the follicular development stage. Each participant underwent one to three treatment cycles until achieving pregnancy.The primary outcome was the cumulative pregnancy rate of all the participants. Secondary outcomes included characteristics and clinical pregnancy rates of all the intervention cycles., Results: For all 220 participants, the sequential letrozole 2.5 mg/FSH treatment group had a significantly higher cumulative pregnancy rate compared to the letrozole 5 mg/FSH treatment group (72.7% versus 59.1%, RR (95%CI) = 1.23 (1.02, 1.49), P-value = 0.033). For all 468 intervention cycles, letrozole 2.5 mg/FSH group had a significantly higher clinical pregnancy rate than the letrozole 5 mg/FSH group (36.2% versus 26.3%, P-value = 0.021), no statistically significant differences were observed in ovulation rates or adverse effects., Conclusions: The data indicate that the sequential letrozole 2.5mg/FSH protocol may be more effective than the sequential letrozole 5mg/FSH protocol for promoting pregnancy in infertile women with PCOS., Clinical Trial Registration: www.chictr.org.cn, identifier ChiCTR2300069638., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Chen, Liu, Zhang, Li, Xiong, Li, Ding and Li.)
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- 2024
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34. Amide-Directed, Rhodium-Catalyzed Regio- and Enantioselective Hydroacylation of Internal Alkenes with Unfunctionalized Aldehydes.
- Author
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Sun X, Gao PC, Sun YW, and Li BJ
- Abstract
Despite the current progress achieved in asymmetric hydroacylations, highly enantioselective catalytic addition of unfunctionalized aldehydes to internal alkenes remains an unsolved challenge. Here, using a coordination-assisted strategy, we developed a rhodium-catalyzed regio- and enantioselective addition of unfunctionalized aldehydes to internal alkenes such as enamides and β,γ-unsaturated amides. Valuable α-amino ketones and 1,4-dicarbonyl compounds were directly obtained with high enantioselectivity from readily available materials.
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- 2024
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35. Potentiation of the lateral habenula-ventral tegmental area pathway underlines the susceptibility to depression in mice with chronic pain.
- Author
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Zhang CK, Wang P, Ji YY, Zhao JS, Gu JX, Yan XX, Fan HW, Zhang MM, Qiao Y, Liu XD, Li BJ, Wang MH, Dong HL, Li HH, Huang PC, Li YQ, Hou WG, Li JL, and Chen T
- Subjects
- Mice, Animals, Ventral Tegmental Area metabolism, Depression, gamma-Aminobutyric Acid metabolism, Habenula metabolism, Chronic Pain
- Abstract
Chronic pain often develops severe mood changes such as depression. However, how chronic pain leads to depression remains elusive and the mechanisms determining individuals' responses to depression are largely unexplored. Here we found that depression-like behaviors could only be observed in 67.9% of mice with chronic neuropathic pain, leaving 32.1% of mice with depression resilience. We determined that the spike discharges of the ventral tegmental area (VTA)-projecting lateral habenula (LHb) glutamatergic (Glu) neurons were sequentially increased in sham, resilient and susceptible mice, which consequently inhibited VTA dopaminergic (DA) neurons through a LHb
Glu -VTAGABA -VTADA circuit. Furthermore, the LHbGlu -VTADA excitatory inputs were dampened via GABAB receptors in a pre-synaptic manner. Regulation of LHb-VTA pathway largely affected the development of depressive symptoms caused by chronic pain. Our study thus identifies a pivotal role of the LHb-VTA pathway in coupling chronic pain with depression and highlights the activity-dependent contribution of LHbGlu -to-VTADA inhibition in depressive behavioral regulation., (© 2023. Science China Press.)- Published
- 2024
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36. Triterpenoids from the fruits of Aphanamixis polystachya and their inhibitory activities on nitric oxide production.
- Author
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Yang X, Wu SL, Li BJ, Li YP, He HP, and Dong FW
- Subjects
- Fruit chemistry, Nitric Oxide, Molecular Structure, Anti-Inflammatory Agents pharmacology, Triterpenes pharmacology, Meliaceae chemistry
- Abstract
Nineteen triterpenoids, including five previously unknown (four triucallane-type derivatives and one highly oxidized A, B-seco limonoids), together with fourteen known triterpenoids, were isolated from the fruits of Aphanamixis polystachya. Their structures were elucidated by extensive spectroscopic analysis. All isolates were evaluated their anti-inflammatory activities. The result showed that all compounds inhibit LPS-induced nitric oxide production in RAW264.7 macrophages with their IC
50 value ranging from 95 to 1332 uM, and compound 6 exhibited obvious anti-inflammatory activity comparable to that of the positive control, with IC50 values of 94.96 uM., Competing Interests: Declaration of Competing Interest We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled., (Copyright © 2023. Published by Elsevier B.V.)- Published
- 2023
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37. Uric acid as a mediator in the correlation between white blood cells and preeclampsia severity: a retrospective cohort study.
- Author
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Li BJ, Zhu TT, Hu XY, and He CM
- Subjects
- Pregnancy, Female, Humans, Uric Acid, Retrospective Studies, Creatinine, Leukocytes, Pre-Eclampsia
- Abstract
This study aimed to analyze the independent risk factors for predicting preeclampsia severity and explore its underlying mechanism. Clinical data of patients with preeclampsia were collected from the Medical Information Mart for Intensive Care (MIMIC)-IV database. Univariate and multivariate analyses were employed to assess the significant factors associated with preeclampsia severity. Additionally, we performed multivariate logistic regression analysis and mediation analysis to investigate the potential regulatory path. Based on inclusion and exclusion criteria, 731 participants were enrolled: severe preeclampsia (n = 381) and mild to moderate preeclampsia (n = 350). Age, white blood cells (WBC), platelet, creatinine, albumin, uric acid, aspartate aminotransferase, alanine aminotransferase, international normalized ratio, and prothrombin time were significantly related to preeclampsia severity. Besides, hospital length of stay was significantly higher in the severe group. Notably, age and uric acid were independent predictors for preeclampsia severity. Further, WBC and creatinine were significantly associated with uric acid. Finally, the mediation analysis showed that uric acid was a mediator of the relationship between WBC and preeclampsia severity. In conclusion, WBC might affect preeclampsia severity and progression via the mediation of uric acid. This study might provide novel insight into preventing preeclampsia development., (© 2023. The Author(s).)
- Published
- 2023
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38. Double-Layer Hydrogel with Glucose-Activated Two-Stage ROS Regulating Properties for Programmed Diabetic Wound Healing.
- Author
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Tan M, Zeng J, Zhang FZ, Zhang YT, Li H, Fan ST, Wang JX, Yuan M, Li BJ, and Zhang S
- Abstract
Slow healing of wounds induces great pain in diabetic patients. However, developing new approaches to promote diabetic wound healing is still one of the toughest challenges in the medical field. Here, we constructed a new double-layer hydrogel to effectively regulate reactive oxygen species (ROS) on the wound and promote diabetic wound healing. The inner layer contains glucose oxidase (Gox), ferrocene-modified quaternary ammonium chitosan (Fc-QCs), and poly(β-cyclodextrin) (Pβ-CD), which is used to generate hydroxyl radicals (
• OH) for antibacterial in the early stage of wound healing and collapses gradually. The outer layer is composed of gelatin and dopamine. In the later stage of wound healing, the outer layer contacts the skin, which is beneficial for ROS clearance on the wound. Antibacterial, ROS scavenging, and wound healing experiments have shown that the double-layer hydrogel possesses two-stage ROS regulating properties for programmed diabetic wound healing. In conclusion, it will be one of the most potential dressings for treating diabetic wounds in the future.- Published
- 2023
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39. Potential correlation of oral flora with pemphigus vulgaris - A case control study.
- Author
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Li BJ, He WX, Hua H, and Wei P
- Abstract
Background/purpose: Oral flora is related to various immune-related diseases. Herein we explored the characteristics of oral flora in patients with pemphigus vulgaris (PV) and analyzed the correlation between oral flora and PV., Materials and Methods: Twenty-two untreated patients with PV and 12 healthy controls (HC) were included in this case-control study. The characteristics of salivary microbiome were assessed by high-throughput sequencing using the 16S rRNA Illumina MiSeq approach, and differences between the PV and HC groups were determined. The Kyoto Encyclopedia of Genes and Genomes (KEGG) database was applied to screen key metabolic pathways and preliminarily explore potential mechanisms underlying PV occurrence and development., Results: The abundance of oral flora in the PV group was significantly lower than that in the HC group, and there were characteristic changes. The relative abundance of Prevotella and Agrobacterium in the PV group was significantly higher than that in the HC group ( P < 0.05) and that of Neisseria , Lautropia , and Fusobacterium was significantly lower ( P < 0.05). There was a linear correlation between Prevotella and serum Dsg3 level in PV. KEGG pathway analyses indicated significant differences in nine metabolic pathways between the PV and HC groups ( P < 0.05), namely carbohydrate metabolism, digestive system, neurodegenerative disease, glycan biosynthesis and metabolism, drug resistance: antimicrobial, infectious disease: viral, circulatory system, excretory system, and nervous system., Conclusion: The oral flora of patients with PV presented characteristic changes, and several metabolic pathways were affected, including N-glycan biosynthesis and metabolism. Prevotella spp. appear to require the most attention in PV. We believe that oral flora dysbacteriosis contributes to PV occurrence and development., Competing Interests: The authors have no conflicts of interest relevant to this article., (© 2023 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.)
- Published
- 2023
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40. [Epidemiological characteristics of reinfection of 2019-nCoV and influencing factors in Ningbo].
- Author
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Chu YR, Chen Y, Lei S, Zhang YW, Yi B, Ma JM, Yan KD, Wang Y, Li BJ, Lyu MQ, Xu GZ, and Zhang DL
- Subjects
- Adult, Humans, Middle Aged, Asian People statistics & numerical data, SARS-CoV-2, China epidemiology, Risk Factors, Time Factors, COVID-19 epidemiology, COVID-19 prevention & control, Epidemics, Reinfection epidemiology, Reinfection etiology, Reinfection prevention & control
- Abstract
Objective: To analyze the epidemiological characteristics of reinfection of 2019-nCoV and influencing factors, and provide evidence for effective prevention and control of COVID-19 epidemic. Methods: The incidence data of COVID-19 in Ningbo from January 1, 2020 to November 30, 2022 were collected from the infectious disease surveillance system of Chinese information system for disease control and prevention. The incidence of reinfection of 2019-nCoV was investigated by using questionnaire. logistic regression analysis was used to analyze the influences of gender, age, time interval from the first infection, history of underlying disease, 2019-nCoV vaccination dose and disease severity on the reinfection. Results: A total of 897 previous 2019-nCoV infection cases were investigated, of which 115 experienced the reinfection of 2019-nCoV, the reinfection rate was 12.82%. The interval between the two infections M ( Q
1 , Q3 ) was 1 052 (504, 1 056) days. Univariate analysis showed that age, 2019-nCoV vaccination dose, history of underlying disease, type of 2019-nCoV variant causing the first infection, time interval from the first infection and severity of the first infection were associated with the reinfection rate (all P <0.05). Multivariate logistic regression analysis showed that the risk for reinfection in age group 30- years was higher than that in age group ≥60 years ( OR =2.10, 95% CI : 1.11-3.97). No reinfection occurred in those with time interval from the first infection of <6 months, and the risk for reinfection was higher in those with the time interval of ≥12 months than in those with the time interval of 6- months ( OR =6.68, 95% CI : 3.46-12.90). The risk for reinfection was higher in the common or mild cases than in the asymptomatic cases ( OR =2.64, 95% CI : 1.18-5.88; OR =2.79, 95% CI : 1.27-6.11). Conclusion: The time interval from the first infection was an important influencing factor for the reinfection of 2019-nCoV, and the probability of the reinfection within 6 months was low.- Published
- 2023
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41. The expression levels of circulating miR-140-3p, miR-130a-3p, and miR-320b as diagnostic biomarkers in acute ischemic stroke.
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Ju HY, Tang SS, Li BJ, Luo X, and Li Q
- Subjects
- Humans, Biomarkers, Glucose, Ischemic Stroke, MicroRNAs genetics, Stroke diagnosis, Stroke genetics
- Abstract
Plasma miRNAs can characterize several diseases, including acute ischemic stroke (AIS), which is noninvasive and currently affordable in most laboratories worldwide. We aimed to demonstrate plasma miR-140-3p, miR-130a-3p, and miR-320b as diagnostic biomarkers in AIS.GSE110993 and GSE86291 datasets were analyzed to obtain plasma differentially expressed miRNAs between AIS and healthy control subjects (HCs). We further applied RT-qPCR for the validation in 85 AIS patients and 85 HCs. Receiver operating characteristic (ROC) curve were conducted to evaluate their diagnostic utility in AIS. Correlation was analyzed between DEmiRNAs and clinical and laboratory parameters, as well as inflammatory markers. The plasma levels of miR-140-3p, miR-130a-3p, and miR-320b were found to be consistently altered in both GSE110993 and GSE86291 datasets. In comparison to HCs, AIS patients at admission exhibited lower levels of miR-140-3p and miR-320b and higher level of miR-130a-3p in their plasma. The ROC analysis revealed that plasma miR-140-3p, miR-130a-3p, and miR-320b had area under the curve values of 0.790, 0.831, and 0.907, respectively. When combined, these miRNAs showed superior discriminatory power with a sensitivity of 91.76% and specificity of 95.29%. Plasma miR-140-3p and miR-320b negatively correlated glucose levels and inflammatory markers (IL-6, MMP-2, MMP-9, and VEGF) in AIS patients. Conversely, plasma miR-130a-3p levels were positively associated with glucose levels and these markers. Plasma miR-140-3p, miR-130a-3p, and miR-320b levels varied significantly among AIS patients with different NIHSS scores. Plasma miR-140-3p, miR-130a-3p, and miR-320b had high diagnostic value in AIS patients, which were correlated with inflammation and severity in stroke., (© 2023 The Authors. The Kaohsiung Journal of Medical Sciences published by John Wiley & Sons Australia, Ltd on behalf of Kaohsiung Medical University.)
- Published
- 2023
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42. Fasting produces antidepressant-like effects via activating mammalian target of rapamycin complex 1 signaling pathway in ovariectomized mice.
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Cheng ZQ, Fan J, Zhao FY, Su JY, Sun QH, Cui RJ, and Li BJ
- Abstract
Recent studies have shown that a 9-hour fast in mice reduces the amount of time spent immobile in the forced swimming test. However, whether 9-hour fasting has therapeutic effects in female mice with depressive symptoms has not been established. Therefore, in this study, we simulated perimenopausal depression via an ovariectomy in mice, and subjected them to a single 9-hour fasting 7 days later. We found that the ovariectomy increased the time spent immobile in the forced swimming test, inhibited expression of the mammalian target of rapamycin complex 1 signaling pathway in the hippocampus and prefrontal cortex, and decreased the density of dendritic spines in the hippocampus. The 9-hour acute fasting alleviated the above-mentioned phenomena. Furthermore, all of the antidepressant-like effects of 9-hour fasting were reversed by an inhibitor of the mammalian target of rapamycin complex 1. Electrophysiology data showed a remarkable increase in long-term potentiation in the hippocampal CA1 of the ovariectomized mice subjected to fasting compared with the findings in the ovariectomized mice not subjected to fasting. These findings show that the antidepressant-like effects of 9-hour fasting may be related to the activation of the mammalian target of the rapamycin complex 1 signaling pathway and synaptic plasticity in the mammalian hippocampus. Thus, fasting may be a potential treatment for depression., Competing Interests: None
- Published
- 2023
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43. PxRdl2 dsRNA increased the insecticidal activities of GABAR-targeting compounds against Plutella xylostella.
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Li BJ, Wang KK, Yu Y, Wei JQ, Zhu J, Wang JL, Lin F, and Xu HH
- Subjects
- Animals, Biological Assay, Escherichia coli genetics, RNA Interference, RNA, Double-Stranded genetics, RNA, Double-Stranded pharmacology, Insecticides pharmacology, Lepidoptera
- Abstract
The utilization of RNA interference (RNAi) for pest management has garnered global interest. The bioassay results suggested the knockout of the PxRdl2 gene significantly increased the insecticidal activities of the γ-aminobutyric acid receptor (GABAR)-targeting compounds (fipronil, two pyrazoloquinazolines, and two isoxazolines), thereby presenting a viable target gene for RNAi-mediated pest control. Consequently, we suggest enhancing the insecticidal activities of GABAR-targeting compounds by knockdown the transcript level of PxRdl2. Furthermore, PxRdl2 dsRNA was expressed in HT115 Escherichia coli to reduce costs and protect dsRNA against degradation. In comparison to in vitro synthesized dsRNA, the recombinant bacteria (ds-B) exhibited superior interference efficiency and greater stability when exposed to UV irradiation. Collectively, our results provide a strategy for insecticide spray that combines synergistically with insecticidal activities by suppressing PxRdl2 using ds-B and may be beneficial for reducing the usage of insecticide and slowing pest resistance., Competing Interests: Declaration of Competing Interest The authors declare no competing financial interest., (Copyright © 2023. Published by Elsevier Inc.)
- Published
- 2023
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44. MALAT1 binds to miR-188-3p to regulate ALOX5 activity in the lung inflammatory response of neonatal bronchopulmonary dysplasia.
- Author
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Feng DD, Chen JH, Chen YF, Cao Q, Li BJ, Chen XQ, Jin R, and Zhou GP
- Subjects
- Animals, Rats, Arachidonate 5-Lipoxygenase, Cell Line, Tumor, Leukocytes, Mononuclear metabolism, Lung metabolism, Bronchopulmonary Dysplasia genetics, Hyperoxia, MicroRNAs genetics, MicroRNAs metabolism, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism
- Abstract
Bronchopulmonary dysplasia (BPD) causes high morbidity and mortality in infants, but no effective preventive or therapeutic agents have been developed to combat BPD. In this study, we assessed the expression of MALAT1 and ALOX5 in peripheral blood mononuclear cells from BPD neonates, hyperoxia-induced rat models and lung epithelial cell lines. Interestingly, we found upregulated expression of MALAT1 and ALOX5 in the experimental groups, along with upregulated expression of proinflammatory cytokines. According to bioinformatics prediction, MALAT1 and ALOX5 simultaneously bind to miR-188-3p, which was downregulated in the experimental groups above. Silencing MALAT1 or ALOX5 and overexpressing miR-188-3p inhibited apoptosis and promoted the proliferation of hyperoxia-treated A549 cells. Suppressing MALAT1 or overexpressing miR-188-3p increased the expression levels of miR-188-3p but decreased the expression levels of ALOX5. Moreover, RNA immunoprecipitation (RIP) and luciferase assays showed that MALAT1 directly targeted miR-188-3p to regulate ALOX5 expression in BPD neonates. Collectively, our study demonstrates that MALAT1 regulates ALOX5 expression by binding to miR-188-3p, providing novel insights into potential therapeutics for BPD treatment., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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45. Overexpression of sirtuin 1 attenuates calcium oxalate-induced kidney injury by promoting macrophage polarization.
- Author
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Song BF, Li BJ, Ning JZ, Xia YQ, Ye ZH, Yuan TH, Yan XZ, Li L, Zhou XJ, Rao T, Li W, and Cheng F
- Subjects
- Animals, Mice, Inflammation metabolism, Kidney metabolism, Macrophages metabolism, Sirtuin 1 genetics, Sirtuin 1 metabolism, Calcium Oxalate chemistry, Kidney Calculi chemistry, Kidney Calculi metabolism
- Abstract
Sirtuin 1 (SIRT1) protein is involved in macrophage differentiation, while NOTCH signaling affects inflammation and macrophage polarization. Inflammation and macrophage infiltration are typical processes that accompany kidney stone formation. However, the role and mechanism of SIRT1 in renal tubular epithelial cell injury caused by calcium oxalate (CaOx) deposition and the relationship between SIRT1 and the NOTCH signaling pathway in this urological disorder are unclear. This study investigated whether SIRT1 promotes macrophage polarization to inhibit CaOx crystal deposition and reduce renal tubular epithelial cell injury. Public single-cell sequencing data, RT-qPCR, immunostaining approaches, and Western blotting showed decreased SIRT1 expression in macrophages treated with CaOx or exposed to kidney stones. Macrophages overexpressing SIRT1 differentiated towards the anti-inflammatory M2 phenotype, significantly inhibiting apoptosis and alleviating injury in the kidneys of mice with hyperoxaluria. Conversely, decreased SIRT1 expression in CaOx-treated macrophages triggered Notch signaling pathway activation, promoting macrophage polarization towards the pro-inflammatory M1 phenotype. Our results suggest that SIRT1 promotes macrophage polarization towards the M2 phenotype by repressing the NOTCH signaling pathway, which reduces CaOx crystal deposition, apoptosis, and damage in the kidney. Therefore, we propose SIRT1 as a potential target for preventing disease progression in patients with kidney stones., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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46. Brucellosis complicated by myelofibrosis: report of five cases and review of literature.
- Author
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Wang JN, Li BJ, Yuan J, and Li Y
- Abstract
Myelofibrosis is a myeloproliferative tumor, that can be secondary to malignant hematologic or inflammatory diseases, such as chronic myeloid leukemia, polycythemia vera, primary thrombocythemia, multiple myeloma, disseminated tuberculosis, or vasculitis. However, few cases of brucellosis-associated myelofibrosis have been reported. Moreover, due to the rarity of this phenomenon, it is often overlooked by clinicians, resulting in misdiagnosis and mismanagement. Thus, brucellosis should be considered as a possible cause of myelofibrosis. In the present study, we report five cases of brucellosis, of which three had myelofibrosis. In addition, to further determine the potential link between brucellosis and myelofibrosis, we retrospectively analyzed the levels of various cytokines by collecting the clinicopathologic data of patients and using immunohistochemical staining. We found that brucellosis patients with myelofibrosis had elevated levels of cytokines such as interferon (IFN)-γ, interleukin (IL)-1β, basic fibroblast growth factor (b-FGF), vascular endothelial growth factor (VEGF), suggesting that the regulation of cytokines may play a central role in the development of myelofibrosis in patients with brucellosis., Competing Interests: None., (IJCEP Copyright © 2023.)
- Published
- 2023
47. Insights into cell wall changes during fruit softening from transgenic and naturally occurring mutants.
- Author
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Shi Y, Li BJ, Grierson D, and Chen KS
- Subjects
- Plants, Genetically Modified metabolism, Plant Proteins genetics, Plant Proteins metabolism, Cell Wall genetics, Cell Wall metabolism, Gene Expression Regulation, Plant, Fruit metabolism, Malus genetics, Malus metabolism
- Abstract
Excessive softening during fleshy fruit ripening leads to physical damage and infection that reduce quality and cause massive supply chain losses. Changes in cell wall (CW) metabolism, involving loosening and disassembly of the constituent macromolecules, are the main cause of softening. Several genes encoding CW metabolizing enzymes have been targeted for genetic modification to attenuate softening. At least 9 genes encoding CW-modifying proteins have increased expression during ripening. Any alteration of these genes could modify CW structure and properties and contribute to softening, but evidence for their relative importance is sparse. The results of studies with transgenic tomato (Solanum lycopersicum), the model for fleshy fruit ripening, investigations with strawberry (Fragaria spp.) and apple (Malus domestica), and results from naturally occurring textural mutants provide direct evidence of gene function and the contribution of CW biochemical modifications to fruit softening. Here we review the revised CW structure model and biochemical and structural changes in CW components during fruit softening and then focus on and integrate the results of changes in CW characteristics derived from studies on transgenic fruits and mutants. Potential strategies and future research directions to understand and control the rate of fruit softening are also discussed., Competing Interests: Conflict of interest statement. None declared., (© The Author(s) 2023. Published by Oxford University Press on behalf of American Society of Plant Biologists.)
- Published
- 2023
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48. Gut microbial signatures and differences in bipolar disorder and schizophrenia of emerging adulthood.
- Author
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Chen YH, Zhou CH, Yu H, Wu WJ, Wang YW, Liu L, Hu GT, Li BJ, Peng ZW, and Wang HN
- Subjects
- Adult, Humans, Biomarkers, Bipolar Disorder diagnosis, Schizophrenia, Gastrointestinal Microbiome
- Abstract
Introduction: Gut microbial disturbance has been established as potential pathogenesis of mental disorders. However, the signatures and differences regarding patients with schizophrenia (SCH) or bipolar disorder (BD) in emerging adulthood as well as their subtypes have been poorly addressed., Methods: In the present study, stool samples obtained from 63 emerging adult patients with schizophrenia (SCH), 50 with bipolar disorder (BD), and 40 healthy controls (HC) were analyzed by 16 S rRNA gene sequencing; psychiatric symptoms and psychological, social, and professional functioning were also assessed., Results: We found that gut microbiota composition was remarkably changed in the patients with SCH and BD. Moreover, the distinct gut microbiome signatures and their potential function in bipolar depression (BP-D) and SCH with predominantly negative symptoms (SCH-N) as well as bipolar mania (BP-M) and SCH with predominantly positive symptoms (SCH-P) were also observed. Furthermore, we identified diagnostic potential biomarkers that can distinguish BD from HC (38 genera, AUC = 0.961), SCH from HC (32 genera, AUC = 0.962), and BD from Scheme (13 genera, AUC = 0.823). Potential diagnostic biomarkers that can distinguish BD-D from SCH-N (16 genera, AUC = 0.969) and BD-M from SCH-P (31 genera, AUC = 0.938) were also identified., Conclusion: This study provides further understanding of abnormal gut microbiome in emerging adulthood patients with SCH and BD and lay the potential foundation for the development of microbe-based clinical diagnosis for BD and SCH., (© 2022 The Authors. CNS Neuroscience & Therapeutics published by John Wiley & Sons Ltd.)
- Published
- 2023
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49. Exploring the effects of habituation and scent in first-person 360-degree videos on consumption behavior.
- Author
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Li BJ and Lee HM
- Subjects
- Humans, Pheromones, Smell, Cognition, Odorants, Habituation, Psychophysiologic
- Abstract
Although immersive virtual environments can influence food-related thoughts, emotions and behavior, the influence of repeated exposure to food cues in such environments has rarely been explored. This study seeks to understand if habituation, a decrease in one's physiological and behavioral response that results from repeated simulation, can take place while repeatedly watching 360-degrees of food being consumed. The influence of scent as an olfactory cue is further explored, based on past research on embodied cognition. In Study One (n = 42), participants who viewed 30 repetitions of someone eating an M&M ate significantly fewer M&Ms than those who viewed three repetitions. Study Two (n = 114) used a 2 (behavior: eating M&M/inserting a coin) × 2 (repetitions: 3/30) between-subjects experiment to confirm that results from Study One were due to habituation of the consumption video, finding that there were only significant differences between repetitions in the M&M condition. Finally, Study Three (n = 161) comprised a 2 (repetition: 3/30) × 2 (scent: present/absent) between-subjects experiment. Participants in the 30-repetition condition and those in the scent-present condition ate significantly fewer M&Ms respectively, but no interaction effects were found. The theoretical and practical implications of these findings are discussed., (© 2023. The Author(s).)
- Published
- 2023
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50. Flapless one-knot suture: a novel surgical technique for transscleral fixation of C-loop intraocular lenses.
- Author
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Long QQ and Li BJ
- Abstract
Aim: To describe a novel suture approach for transscleral fixation of C-loop intraocular lenses (IOL) and to compare the surgical outcomes with the four-haptics posterior chamber (PC)-IOL technique., Methods: We retrospectively analyzed 16 eyes of 16 patients who underwent transscleral fixation of C-loop PC-IOLs using a flapless one-knot suture technique, which were followed up for longer than 17mo. In this technique, the capsulorless IOL was suspended using a single suture for transscleral fixation of four feet. Then we compared its surgical outcomes and complications with the four-haptics PC-IOLs using the Student's t test and Chi-square test., Results: Sixteen patients of 16 eyes with a mean age of 58.3±10.1y (42-76y) who received transscleral C-loop IOL implantation due to trauma, vitrectomy, or cataract surgery with inadequate capsule support showed improved visual acuity. The difference was not significant between two IOLs except the surgery time ( P >0.05). The mean operation times of C-loop IOL surgery was 24.1±1.83min and 31.3±4.47min of the four-haptics PC-IOL method ( P <0.0001). In the C-loop IOLs group, there was statistical difference between the preoperative and the postoperative UCVA (logMAR, 1.20±0.50 vs 0.57±0.32, P =0.0003). There was no statistical difference between the preoperative and the postoperative BCVA (logMAR, 0.66±0.46 vs 0.40±0.23, P =0.056). However, there was no statistically significant difference in postoperative UCVA and BCVA between the two IOLs ( P >0.05). We did not detect any optic capture, IOL decentration or dislocation, suture exposed, or cystoid macular edema in patients underwent C-loop IOLs surgery., Conclusion: The novel flapless one-knot suture technique for transscleral fixation of C-loop IOL is a simple, reliable, and stable technique., (International Journal of Ophthalmology Press.)
- Published
- 2023
- Full Text
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