30 results on '"Zhanbing, Ma"'
Search Results
2. miR-183-5p Is a Potential Molecular Marker of Systemic Lupus Erythematosus
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Shaolan Zhou, Jing Zhang, Pengfei Luan, Zhanbing Ma, Jie Dang, Hong Zhu, Qian Ma, Yanfeng Wang, and Zhenghao Huo
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Immunologic diseases. Allergy ,RC581-607 - Abstract
Objective. To investigate microRNA (miRNA) expression profiles in individuals with systemic lupus erythematosus (SLE) and identify the valuable miRNA biomarkers in diagnosing and monitoring SLE. Methods. Next-generation sequencing (NGS) was performed to assess miRNA amounts in peripheral blood mononuclear cells (PBMCs) from four SLE cases and four healthy controls. Quantitative polymerase chain reaction (qPCR) was carried out for validating candidate miRNAs in 32 SLE cases and 32 healthy controls. In addition, receiver operating characteristic (ROC) curve analysis was completed to evaluate diagnostic performance. Finally, the associations of candidate miRNAs with various characteristics of SLE were analyzed. Results. A total of 157 miRNAs were upregulated, and 110 miRNAs were downregulated in PBMCs from SLE cases in comparison to healthy controls, of which the increase of miR-183-5p and decrease of miR-374b-3p were validated by qPCR and both showed good diagnostic performance for SLE diagnosis. Besides, miR-183-5p expression levels displayed a positive association with SLE disease activity index (SLEDAI) and anti-dsDNA antibody amounts. Conclusion. Our data indicated that miR-183-5p is a promising biomarker of SLE.
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- 2021
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3. Corrigendum to 'miR-183-5p Is a Potential Molecular Marker of Systemic Lupus Erythematosus'
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Shaolan Zhou, Jing Zhang, Pengfei Luan, Zhanbing Ma, Jie Dang, Hong Zhu, Qian Ma, Yanfeng Wang, and Zhenghao Huo
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Immunologic diseases. Allergy ,RC581-607 - Published
- 2021
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4. Enolase2(ENO2) responsed Perfluorooctane Sulfonate toxic in Rattus norvegicus Brain
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Honghui Li, Huifang Yang, and Zhanbing Ma
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Perfluorooctane sulfonate (PFOS) is a global environmental contaminant known to cause neurotoxicity. However, the specific targets of its neurotoxic effects remain poorly understood. In this study, we aimed to investigate the differential protein expression associated with brain tissue toxicity induced by potassium perfluorooctane sulfonate (PFOS-K) and predict its potential biological functions. Rattus norvegicus were treated with 10 mg/kg PFOS-K for 30 days to establish a toxicity model, and brain tissue morphology was examined using HE and nissl staining. Protein expression profiles were analyzed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Bioinformatics tools were used to analyze protein functions, and immunofluorescence was employed to detect the expression of the ENO2 gene in whole brain tissue.PFOS exposure resulted in changes in neuronal cell morphology in different regions of the rat hippocampus, including cell vacuolation, reduced neuronal axon length and density, and decreased nisomes in the DG region. PFOS-K exposure led to changes in protein expression profiles in brain tissue, with 53 differentially expressed proteins identified. Gene ontology (GO) and pathway analysis revealed that the main function of these proteins is to participate in the mitochondrial oxidative respiratory electron transport chain. The main signaling pathways involved include glycolysis, glutamine conversion, Wnt signaling pathway, energy metabolism, oxidative stress, and inflammatory-mediated cytokine signaling. PFOS-K exposure may primarily promote mitochondrial oxidative respiratory electron transport chain, elevate cytoplasmic Glu levels, and disrupt Ga2+ homeostasis. It induces mitochondrial pathway-dependent apoptosis, while also significantly down-regulating the expression of the neurotrophic and protective factor ENO2 in the pyramidal layer of the hippocampus, which may ultimately result in neuronal pathological damage and brain tissue toxicity through energy metabolism.
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- 2023
5. LncRNA expression profile during autophagy and Malat1 function in macrophages.
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Zhanbing Ma, Jing Zhang, Xiangrong Xu, Yuliang Qu, Hui Dong, Jie Dang, Zhenghao Huo, and Guangxian Xu
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Medicine ,Science - Abstract
Long noncoding RNAs (lncRNAs) are a class of functional non-coding transcripts that are longer than 200 nt and regulate gene expression via diverse mechanisms in eukaryotes. In fact, they have emerged as critical epigenetic and transcriptional regulators of autophagy in mammals in response to various stressors. Autophagy not only plays a crucial role in maintaining cellular homeostasis, but it is also essential to immunity, targets intracellular pathogens for degradation, modulates inflammation, and participates in adaptive immune responses. However, the expression profile of lncRNA and its role in regulating autophagy in macrophages have been poorly defined. Here, we used transcriptomic and bioinformatics to analysis LncRNA expression profile during autophagy and functional studies to evaluate the function of the metastasis-associated lung adenocarcinoma transcript-1 (Malat1) lncRNA in macrophages. A total of 1112 putative lncRNAs (240 novel lncRNAs) were identified, including 831 large intergenic, 129 intronic, and 152 anti-sense lncRNA, of which 59 differentially expressed transcripts exhibited a greater than 1.5-fold change under different conditions. The interaction of Malat1 lncRNA with microRNA (mir)-23-3p and lysosomal-associated membrane protein 1 (Lamp1) was found, Malat1 releases inhibition of Lamp1 expression in macrophages through competitive adsorption of mir-23-3p. The results of this study provide a better understanding of lncRNA function in macrophages and a basis for further investigation into the roles and mechanisms of ncRNA in immunology, particularly the functions of Malat1 and mir-23-3p in the pathogenesis of macrophages.
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- 2019
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6. Mechanisms underlying immune tolerance caused by recombinant Echinococcus granulosus antigens Eg mMDH and Eg10 in dendritic cells.
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Yana Wang, Shiyu Lv, Qiang Wang, Chan Wang, Mingxing Zhu, Zhanbing Ma, and Wei Zhao
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Medicine ,Science - Abstract
Mice immunized with recombinant Echinococcus granulosus antigens Eg10 and Eg mMDH do not show elevated resistance to E. granulosus infection but show aggravated infection instead. To gain a deeper insight in the immune tolerance mechanisms in mice immunized with Eg10 and Eg mMDH, this study simulated the immune tolerance process in vitro by culturing bone marrow-derived dendritic cells (BMDCs) in the presence of Eg10 or Eg mMDH. Scanning electron microscopy revealed that Eg10- and Eg mMDH-treated DCs exhibited immature cell morphology, while addition of LPS to the cells induced changes in cell morphology and an increase in the number of cell-surface protrusions. This observation was consistent with the increased expression of the cell-surface molecules MHCII and CD80 in Eg10- and Eg mMDH-treated DCs pretreated with LPS. DCs exposed to the two antigens had a very weak ability to induce T-cell proliferation, but could promote the formation of Treg cells. Introduction of the indoleamine 2,3-dioxygenase (IDO) inhibitor, 1-methyl tryptopha (1-MT) enhanced the ability of the antigens to induce T cells and inhibited the induction of Treg cells. Eg mMDH-treated DCs showed a strong response to 1-MT: the DCs had high mRNA levels of IDO, IL-6, and IL-10, while 1-MT decreased the expression. In contrast, DCs treated with Eg10 did not show significant changes after 1-MT treatment. Eg mMDH inhibited DC maturation and promoted IDO expression, which, on the one hand, decreased the ability of DCs to induce T-cell proliferation, resulting in T-cell anergy, and on the other hand, induced the formation of Tregs, resulting in an immunosuppressive effect. In contrast, the escape mechanisms induced by Eg10 did not primarily depend on the IDO pathway and might involve other mechanisms that need to be further explored.
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- 2018
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7. Narasin inhibits tumor metastasis and growth of ERα‑positive breast cancer cells by inactivation of the TGF‑β/SMAD3 and IL‑6/STAT3 signaling pathways
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Boxia Liu, Xieping Huang, Jun Ling, Na Li, Tao Li, Wenjun Yang, Zhanbing Ma, and Jing Chen
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0301 basic medicine ,Cancer Research ,Cell ,Estrogen receptor ,Vimentin ,Biochemistry ,Metastasis ,Mice ,chemistry.chemical_compound ,0302 clinical medicine ,Cell Movement ,Transforming Growth Factor beta ,Neoplasm Metastasis ,Mice, Inbred BALB C ,biology ,Chemistry ,Articles ,Cell cycle ,Cadherins ,Gene Expression Regulation, Neoplastic ,Molecular Docking Simulation ,tumor growth ,medicine.anatomical_structure ,Oncology ,narasin ,030220 oncology & carcinogenesis ,MCF-7 Cells ,Molecular Medicine ,Female ,Signal Transduction ,STAT3 Transcription Factor ,China ,Epithelial-Mesenchymal Transition ,Mice, Nude ,Narasin ,Breast Neoplasms ,03 medical and health sciences ,breast cancer ,Cell Line, Tumor ,Genetics ,medicine ,Animals ,Humans ,Smad3 Protein ,Molecular Biology ,Cell Proliferation ,Pyrans ,tumor metastasis ,Oncogene ,Interleukin-6 ,Cell growth ,Estrogen Receptor alpha ,medicine.disease ,Xenograft Model Antitumor Assays ,030104 developmental biology ,biology.protein ,Cancer research - Abstract
Treatment of human estrogen receptor (ER)-positive breast cancer (ER+ BC) using conventional chemotherapy remains a challenge and is often ineffective as a result of tumor metastasis. The present study aimed to investigate the ability of narasin, an ionophore antibiotic, to potentially inhibit tumor metastasis and growth in human ER+ BC. Narasin was found to have significant inhibitory abilities on cell proliferation, migration and invasion in ER+ BC cell lines MCF-7 and T47D compared with the triple-negative BC cell MDA-MB-231. For the in vivo studies, narasin effectively decreased the number of tumor metastasis nodules, tumor volume and weight without apparent toxicity in human MCF-7 nude mouse left ventricle injection tumor metastasis and xenograft models. Mechanistically, it demonstrated that exposure to TGF-β or IL-6 induced the expression of epithelial-mesenchymal transition (EMT) markers in ER+ BC cell lines. On the contrary, narasin dose-dependently reversed EMT by increasing the expression of E-cadherin and decreasing the expression of N-cadherin, vimentin, β-catenin and zinc finger E-box-binding homeobox 1 at the protein and gene expression levels. Gene microarray, molecular docking and western blotting were performed to demonstrate that those protein and gene expression levels are regulated by the inactivation of the TGF-β/phosphorylated (p)-SMAD3 and IL-6/p-STAT3 signaling pathways. Taken together, these findings indicated that narasin may be a promising candidate that can be further optimized for the treatment of human ER+ BC.
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- 2020
8. Upregulation of TIGIT and PD-1 in Colorectal Cancer with Mismatch-repair Deficiency
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Lei Xin, Dong Zhang, Zhanbing Ma, Xiaoli Luo, Xuebing Zhou, Shaoqi Yang, Xiaoling Ding, Guangxian Xu, Chun Yang, Xiaoliang Xie, and Hai Li
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0301 basic medicine ,Colorectal cancer ,T-Lymphocytes ,T cell ,Programmed Cell Death 1 Receptor ,Immunology ,Cell ,Kaplan-Meier Estimate ,03 medical and health sciences ,0302 clinical medicine ,TIGIT ,Downregulation and upregulation ,Neoplastic Syndromes, Hereditary ,Humans ,Medicine ,Receptors, Immunologic ,Brain Neoplasms ,business.industry ,Forkhead Transcription Factors ,General Medicine ,medicine.disease ,Up-Regulation ,030104 developmental biology ,medicine.anatomical_structure ,Case-Control Studies ,030220 oncology & carcinogenesis ,Cancer research ,MISMATCH REPAIR DEFICIENCY ,Cytokines ,Colorectal Neoplasms ,business - Abstract
Background: The role of T cell Ig and ITIM domain (TIGIT) and programmed cell death-1 (PD-1) in colorectal cancer (CRC) with mismatch repair deficiency is unknown.Methods: This was a study of 60 CR...
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- 2020
9. Dermatoglyphs in Coronary Artery Disease Among Ningxia Population of North China
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Hong LU, Wenli Qian, Zhi Geng, Youjing Sheng, Haochen Yu, Zhanbing Ma, and Zhenghao Huo
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anatomical marker ,dermatoglyphic patterns ,health problem ,Medicine - Abstract
Background: Coronary artery disease (CAD) is an enormous health problem in the world. Dermatoglyphs are cutaneous ridges on the fingers, palms, and soles, formed by genetic regulation and control during early intrauterine life. The Dermatoglyphic traits do not change significantly as the growth of the age. They may be the phenotypic characters of individual genes and represent the predisposition to certain diseases. Aims and Objectives: The study was carried out to document characteristic dermatoglyphic patterns in coronary artery disease which could be useful in early diagnosis of the disease. Materials and Methods: Dermatoglyphic study of 258 male (129 coronary artery disease cases and 129 normal subjects) of Ningxia China were studied in the present cross-sectional study. It involved the digital patterns, ATD angles, A-B ridge counts on the hands. Chi-square test, t-test were used for the statistical analysis in this study. Results: The overall frequency of whorls was higher followed by loop and arch in both two groups. It was observed that there was significant difference of digital frequency of whorls and ulnar loops in patients in both hands as compared to controls (p≤0.01). The mean value of finger ridge counts, total ridge counts were similar between two groups. The A-B ridge counts were significantly higher in coronary artery disease compared with controls on the right palm (p≤0.01). However, the mean ATD angle values were significantly higher in cases than those of in normal on both hands (p
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- 2015
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10. Associations Between Cytochrome P450 (CYP) Gene Single-Nucleotide Polymorphisms and Second-to-Fourth Digit Ratio in Chinese University Students
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Pengfei Luan, Hong Lu, Zhanbing Ma, Yanfeng Wang, Zhenghao Huo, Qian Ma, Qiujun Liu, Mengyi Yang, Chunlan Mu, Wei Jia, Jing Zhang, and Jie Dang
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Male ,Digit ratio ,endocrine system ,China ,Genotype ,Universities ,Population ,Single-nucleotide polymorphism ,030204 cardiovascular system & hematology ,Biology ,Polymorphism, Single Nucleotide ,Fingers ,Fetal Development ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Aromatase ,Asian People ,Cytochrome P-450 Enzyme System ,Gene Frequency ,Clinical Research ,Genetic model ,Genetics ,SNP ,Humans ,Cytochrome P-450 CYP3A ,Cholesterol Side-Chain Cleavage Enzyme ,Allele ,education ,Students ,Gonadal Steroid Hormones ,CYP3A7 ,Alleles ,Genetic Association Studies ,education.field_of_study ,Steroid 17-alpha-Hydroxylase ,General Medicine ,SNP genotyping ,030220 oncology & carcinogenesis ,Case-Control Studies ,Female - Abstract
BACKGROUND Cytochrome P450 (CYP) genes are necessary for the production or metabolism of fetal sex hormones during pregnancy. The second-to-fourth digit ratio (2D: 4D) is formed in the early stage of human fetal development and considered an indicator reflecting prenatal sex steroids levels. We explored the association between 2D: 4D and single-nucleotide polymorphisms (SNPs) of CYP. MATERIAL AND METHODS Correlation analysis between 2D: 4D and 8 SNPs, rs2687133 (CPY3A7), rs7173655 (CYP11A1), rs1004467, rs17115149, and rs2486758 (CYP17A1), and rs4646, rs2255192, rs4275794 (CYP19A1), was performed using data from 426 female and 412 male Chinese university students. SNP genotyping was conducted using PCR. Digit lengths were photographed and measured by image processing software. RESULTS rs2486758 (CYP17A1) correlated with left hand 2D: 4D in men (P=0.026), and rs1004467 (CYP17A1) correlated with right hand 2D: 4D in men (P=0.008) and the whole population (P=0.032). In men, allele G rs1004467 decreased right hand 2D: 4D, while allele C of rs2486758 increased left hand 2D: 4D. In women, left hand 2D: 4D was higher in genotypes with allele A of SNP rs4646 (CYP19A1) under the dominant genetic model; female DR-L was higher in genotypes with allele T of rs17115149 (CYP11A1). SNPs rs2687133 (CYP3A7) and rs1004467 (CYP17A1) were significantly correlated with right hand 2D: 4D (P=0.0107). CONCLUSIONS SNPs rs1004467 and rs2486758 of CYP17A1 are significant in the relationship between 2D: 4D and CYP gene polymorphisms under different conditions. SNP interactions between CYP genes probably impact 2D: 4D. The correlation between 2D: 4D and some sex hormone-related diseases may be due to the effect of CYP variants on the 2 phenotypes.
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- 2021
11. MiR-129-3p favors intracellular BCG survival in RAW264.7 cells by inhibiting autophagy via Atg4b
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Guangxian Xu, Yuliang Qu, Zhanbing Ma, Ying Zhang, Xiangrong Xu, Shuqin Ding, Aijun Zhang, and Dan Jiang
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0301 basic medicine ,Immunology ,Autophagy-Related Proteins ,Mycobacterium tuberculosis ,Mice ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Phagosomes ,microRNA ,Autophagy ,Animals ,Humans ,Tuberculosis ,Antagomir ,RNA, Messenger ,3' Untranslated Regions ,Messenger RNA ,biology ,Computational Biology ,Transfection ,biology.organism_classification ,Cell biology ,Cysteine Endopeptidases ,MicroRNAs ,HEK293 Cells ,RAW 264.7 Cells ,030104 developmental biology ,Gene Expression Regulation ,chemistry ,BCG Vaccine ,Flux (metabolism) ,Intracellular ,030215 immunology - Abstract
Autophagy plays an important role in the fight against Mycobacterium tuberculosis infection. Massive researches proved that miRNAs could be the regulators of autophagy, which implied miRNAs could favor MTB invasion or latent infection. In our study, multiple bioinformatics databases and software were used to seek and lock the miRNAs associating with regulation of autophagy. Notably, a novel miR-129-3p was found and its target gene Atg4b showed grand potential in mediation of autophagy. Moreover, BCG infection triggered miR-129-3p overexpression in RAW264.7 cells. Up-regulation of miR-129-3p decreased mRNA or protein level of Atg4b and resulted in the inhibition of autophagy. The antagomir of miR-129-3p had the opposite impact. The LC3 puncta formation in RAW264.7 cells were also affected after transfection of miR-129-3p mimic or antagomir. The mRFP-GFP-LC3 analysis indicated that mimic of miR-129-3p impaired autophagic flux while antagomir improved autophagy. The CFU assay results showed that miR-129-3p promoted the intracellular survival of BCG in macrophages. Consequently, these data suggested that miR-129-3p could favor MTB survival by inhibiting autophagy via Atg4b.
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- 2019
12. Corrigendum to 'miR-183-5p Is a Potential Molecular Marker of Systemic Lupus Erythematosus'
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Zhenghao Huo, Zhanbing Ma, Yanfeng Wang, Shaolan Zhou, Jing Zhang, Jie Dang, Qian Ma, Pengfei Luan, and Hong Zhu
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chemistry.chemical_compound ,chemistry ,business.industry ,Molecular marker ,Immunology ,Cancer research ,Immunology and Allergy ,Medicine ,General Medicine ,Immunologic diseases. Allergy ,RC581-607 ,business - Published
- 2021
13. Genome-wide identification and analysis of MAPK and MAPKK gene families in Brachypodium distachyon.
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Lihong Chen, Wei Hu, Shenglong Tan, Min Wang, Zhanbing Ma, Shiyi Zhou, Xiaomin Deng, Yang Zhang, Chao Huang, Guangxiao Yang, and Guangyuan He
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Medicine ,Science - Abstract
MAPK cascades are universal signal transduction modules and play important roles in plant growth, development and in response to a variety of biotic and abiotic stresses. Although MAPKs and MAPKKs have been systematically investigated in several plant species including Arabidopsis, rice and poplar, no systematic analysis has been conducted in the emerging monocot model plant Brachypodium distachyon. In the present study, a total of 16 MAPK genes and 12 MAPKK genes were identified from B. distachyon. An analysis of the genomic evolution showed that both tandem and segment duplications contributed significantly to the expansion of MAPK and MAPKK families. Evolutionary relationships within subfamilies were supported by exon-intron organizations and the architectures of conserved protein motifs. Synteny analysis between B. distachyon and the other two plant species of rice and Arabidopsis showed that only one homolog of B. distachyon MAPKs was found in the corresponding syntenic blocks of Arabidopsis, while 13 homologs of B. distachyon MAPKs and MAPKKs were found in that of rice, which was consistent with the speciation process of the three species. In addition, several interactive protein pairs between the two families in B. distachyon were found through yeast two hybrid assay, whereas their orthologs of a pair in Arabidopsis and other plant species were not found to interact with each other. Finally, expression studies of closely related family members among B. distachyon, Arabidopsis and rice showed that even recently duplicated representatives may fulfill different functions and be involved in different signal pathways. Taken together, our data would provide a foundation for evolutionary and functional characterization of MAPK and MAPKK gene families in B. distachyon and other plant species to unravel their biological roles.
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- 2012
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14. Overexpression of the wheat aquaporin gene, TaAQP7, enhances drought tolerance in transgenic tobacco.
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Shiyi Zhou, Wei Hu, Xiaomin Deng, Zhanbing Ma, Lihong Chen, Chao Huang, Chen Wang, Jie Wang, Yanzhen He, Guangxiao Yang, and Guangyuan He
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Medicine ,Science - Abstract
Aquaporin (AQP) proteins have been shown to transport water and other small molecules through biological membranes, which is crucial for plants to combat stress caused by drought. However, the precise role of AQPs in drought stress response is not completely understood in plants. In this study, a PIP2 subgroup gene AQP, designated as TaAQP7, was cloned and characterized from wheat. Expression of TaAQP7-GFP fusion protein revealed its localization in the plasma membrane. TaAQP7 exhibited high water channel activity in Xenopus laevis oocytes and TaAQP7 transcript was induced by dehydration, and treatments with polyethylene glycol (PEG), abscisic acid (ABA) and H(2)O(2). Further, TaAQP7 was upregulated after PEG treatment and was blocked by inhibitors of ABA biosynthesis, implying that ABA signaling was involved in the upregulation of TaAQP7 after PEG treatment. Overexpression of TaAQP7 increased drought tolerance in tobacco. The transgenic tobacco lines had lower levels of malondialdehyde (MDA) and H(2)O(2), and less ion leakage (IL), but higher relative water content (RWC) and superoxide dismutase (SOD) and catalase (CAT) activities when compared with the wild type (WT) under drought stress. Taken together, our results show that TaAQP7 confers drought stress tolerance in transgenic tobacco by increasing the ability to retain water, reduce ROS accumulation and membrane damage, and enhance the activities of antioxidants.
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- 2012
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15. Genetic variants in FAM13A and IREB2 are associated with the susceptibility to COPD in a Chinese rural population: a case-control study
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Jin Zhang, Zhanbing Ma, Ya-nan Zhang, Jie Qiu, Min Jiang, and Peng Zhang
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Adult ,Male ,Rural Population ,0301 basic medicine ,China ,medicine.medical_specialty ,Single-nucleotide polymorphism ,International Journal of Chronic Obstructive Pulmonary Disease ,Polymorphism, Single Nucleotide ,chronic obstructive pulmonary disease ,Pulmonary Disease, Chronic Obstructive ,03 medical and health sciences ,FEV1/FVC ratio ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Genetic Predisposition to Disease ,Prospective Studies ,IREB2 ,Iron Regulatory Protein 2 ,Original Research ,Genetic association ,COPD ,Univariate analysis ,Smokers ,business.industry ,GTPase-Activating Proteins ,Case-control study ,Genetic Variation ,Non-Smokers ,General Medicine ,Odds ratio ,Middle Aged ,single-nucleotide polymorphism ,medicine.disease ,Confidence interval ,respiratory tract diseases ,030104 developmental biology ,030228 respiratory system ,FAM13A ,Case-Control Studies ,Female ,business ,Genome-Wide Association Study - Abstract
Yanan Zhang,1 Jie Qiu,1 Peng Zhang,1 Jin Zhang,1 Min Jiang,2 Zhanbing Ma3 1Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, People’s Republic of China; 2National Engineering Research Center for Beijing Biochip Technology, Sub-center in Ningxia, General Hospital of Ningxia Medical University, Yinchuan, People’s Republic of China; 3Department of Medical Genetic and Cell Biology, Ningxia Medical University, Yinchuan, People’s Republic of China Background: Genome-wide association studies identified several genomic regions associated with the risk of chronic obstructive pulmonary disease (COPD), including the 4q22 and 15q25 regions. These regions contain the FAM13A and IREB2 genes, which have been associated with COPD but data are lacking for Chinese patients. The objective of the study was to identify new genetic variants in the FAM13A and IREB2 associated with COPD in Northwestern China.Methods: This was a case-control study performed in the Ningxia Hui Autonomous Region between January 2014 and December 2016. Patients were grouped as COPD and controls based on FEV1/FVC
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- 2018
16. Effects of medial prefrontal cortex 5-HT7 receptor knockdown on cognitive control after acute heroin administration
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Yong-sheng Zhu, Jie Dang, Zhenghao Huo, H J Zhong, Min Li, Yong Huang, Jing Chen, and Zhanbing Ma
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0301 basic medicine ,Gene knockdown ,business.industry ,General Neuroscience ,Cognition ,Impulsivity ,Spatial memory ,5-HT7 receptor ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine ,NMDA receptor ,Neurology (clinical) ,medicine.symptom ,business ,Prefrontal cortex ,Molecular Biology ,Neuroscience ,Episodic memory ,030217 neurology & neurosurgery ,Developmental Biology - Abstract
Heroin abuse is linked to a deleterious effect on cognitive functioning in the individual. Recent evidences suggest that the serotonin7 receptor (5-HT7R) is engaged in the regulation of cognitive control and the drug use-associated behaviors. However, the role of 5-HT7R in the cognitive control after acute heroin administration has not been studied. The present study aims to investigate whether the knockdown of the 5-HT7R by virus-mediated gene silencing in the medial prefrontal cortex (mPFC) could ameliorate the acute heroin-induced cognitive impairments. The attentional function, impulsivity and compulsivity were assessed by the 5-choice serial reaction time task (5-CSRTT) in mice. The memory ability and locomotor activity were examined by the novel objects recognition (NOR), Y-maze and open-field test (OFT). Acute heroin administration at 5 mg/kg produced robust disruptions in attention, impulsivity and motivation in mice. 5-HT7R knockdown in the mPFC did not affect the 5-CSRTT baseline performance, spatial working memory, visual episodic memory and locomotion. However, mPFC 5-HT7R knockdown selectively ameliorated acute heroin-induced increase in omissions and premature responses under conditions of increased perceptual load. In addition, mPFC 5-HT7R knockdown induced increases in perseverative responding observed across both saline and heroin-treated animals. Moreover, 5-HT7R knockdown prevented the heroin-induced decrease in NR1/CaMKII phosphorylation in mPFC, thus suggesting that 5-HT7R and N-methyl- d -aspartic acid (NMDA) receptor signaling may be involved in the cognitive outcomes of acute heroin administration. Altogether, these observations suggest modest and restricted effects of mPFC 5-HT7R knockdown on cognitive behaviors, both in the presence or absence of acute heroin treatment.
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- 2018
17. LncRNA expression profile during autophagy and Malat1 function in macrophages
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Zhenghao Huo, Guangxian Xu, Zhanbing Ma, Hui Dong, Jing Zhang, Jie Dang, Yuliang Qu, and Xiangrong Xu
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0301 basic medicine ,Cellular homeostasis ,Gene Expression ,Biochemistry ,Transcriptome ,White Blood Cells ,Mice ,0302 clinical medicine ,Post-Transcriptional Gene Regulation ,Animal Cells ,Gene expression ,Medicine and Health Sciences ,RNA-Seq ,MALAT1 ,Multidisciplinary ,Cell Death ,Non-coding RNA ,Cell biology ,Enzymes ,Nucleic acids ,Cell Processes ,030220 oncology & carcinogenesis ,Medicine ,RNA, Long Noncoding ,Cellular Types ,Oxidoreductases ,Luciferase ,Research Article ,Science ,Autophagic Cell Death ,Immune Cells ,Immunology ,Biology ,03 medical and health sciences ,microRNA ,Genetics ,Autophagy ,Animals ,Epigenetics ,Natural antisense transcripts ,Blood Cells ,Biology and life sciences ,Macrophages ,Proteins ,Computational Biology ,Lysosome-Associated Membrane Glycoproteins ,Cell Biology ,Gene regulation ,MicroRNAs ,030104 developmental biology ,RAW 264.7 Cells ,Long non-coding RNAs ,Enzymology ,RNA - Abstract
Long noncoding RNAs (lncRNAs) are a class of functional non-coding transcripts that are longer than 200 nt and regulate gene expression via diverse mechanisms in eukaryotes. In fact, they have emerged as critical epigenetic and transcriptional regulators of autophagy in mammals in response to various stressors. Autophagy not only plays a crucial role in maintaining cellular homeostasis, but it is also essential to immunity, targets intracellular pathogens for degradation, modulates inflammation, and participates in adaptive immune responses. However, the expression profile of lncRNA and its role in regulating autophagy in macrophages have been poorly defined. Here, we used transcriptomic and bioinformatics to analysis LncRNA expression profile during autophagy and functional studies to evaluate the function of the metastasis-associated lung adenocarcinoma transcript-1 (Malat1) lncRNA in macrophages. A total of 1112 putative lncRNAs (240 novel lncRNAs) were identified, including 831 large intergenic, 129 intronic, and 152 anti-sense lncRNA, of which 59 differentially expressed transcripts exhibited a greater than 1.5-fold change under different conditions. The interaction of Malat1 lncRNA with microRNA (mir)-23-3p and lysosomal-associated membrane protein 1 (Lamp1) was found, Malat1 releases inhibition of Lamp1 expression in macrophages through competitive adsorption of mir-23-3p. The results of this study provide a better understanding of lncRNA function in macrophages and a basis for further investigation into the roles and mechanisms of ncRNA in immunology, particularly the functions of Malat1 and mir-23-3p in the pathogenesis of macrophages.
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- 2019
18. Associations Between Cytochrome P450 (CYP) Gene Single-Nucleotide Polymorphisms and Second-to-Fourth Digit Ratio in Chinese University Students.
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Jing Zhang, Mengyi Yang, Pengfei Luan, Wei Jia, Qiujun Liu, Zhanbing Ma, Jie Dang, Hong Lu, Qian Ma, Yanfeng Wang, Chunlan Mu, and Zhenghao Huo
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- 2021
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19. Association of CYP19A1 single-nucleotide polymorphism with digit ratio (2D:4D) in a sample of men and women from Ningxia (China)
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Zhanbing, Ma, primary, Jie, Dang, additional, Chunyue, Bai, additional, Hong, Lu, additional, Liang, Peng, additional, and Zhenghao, Huo, additional
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- 2019
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20. Digit ratio (2D:4D) in Chinese women with gastric cancer
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Hong Lu, Chun-Yue Bai, Ke-Ke Li, Zhanbing Ma, and Lu Wang
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0301 basic medicine ,Adult ,medicine.medical_specialty ,Digit ratio ,medicine.drug_class ,Fingers ,03 medical and health sciences ,0302 clinical medicine ,Asian People ,Stomach Neoplasms ,Internal medicine ,Genetics ,Medicine ,Humans ,In patient ,Prenatal exposure ,Ecology, Evolution, Behavior and Systematics ,Testosterone ,Aged ,business.industry ,Significant difference ,Cancer ,Middle Aged ,medicine.disease ,Sexual hormones ,030104 developmental biology ,Estrogen ,030220 oncology & carcinogenesis ,Anthropology ,Case-Control Studies ,Female ,Anatomy ,business - Abstract
OBJECTIVES Digit ratio, especially the second-to-fourth digit ratio (2D:4D), is a proxy indicator for prenatal exposure and sensitivity to sexual hormones which may influence the susceptibility to certain cancers. The aim of the present study was to investigate whether there is a possible association between 2D:4D and gastric cancer (GCA) in north Chinese women. METHODS Photographs of the left and right hands of 167 women (controls: 113; patients: 54) were collected. Left hand, right hand, and right minus left hand (Dr-l) 2D:4D were analyzed and compared. RESULTS The GCA group presented significantly lower 2D:4D than controls (left: P
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- 2017
21. Second to fourth digit ratio (2D:4D) and coronary heart disease
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Zhenghao Huo, Hong Lu, Jun-li Zhao, and Zhanbing Ma
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Adult ,Male ,China ,medicine.medical_specialty ,Chinese men ,Coronary Disease ,Disease ,Risk Assessment ,Fingers ,Internal medicine ,Humans ,Medicine ,In patient ,Aged ,Sex Characteristics ,business.industry ,Obstetrics and Gynecology ,Middle Aged ,Coronary heart disease ,Surgery ,Fourth digit ,Sex steroid ,Pediatrics, Perinatology and Child Health ,Cardiology ,Biomarker (medicine) ,business ,Hormone - Abstract
Sex steroid exposure during human development may influence disease susceptibility. Second to fourth digit ratio (2D:4D) is thought to be a putative biomarker for prenatal hormone level during foetal life. Recently there has been a great deal of interest in 2D:4D and risk of disease in adulthood.We explored the relationship between 2D:4D ratio and coronary heart disease. Photocopies of the two hands of 310 males (controls: 155; patients: 155) were collected at Yin chuan city, in the Ningxia province of China. Left hand, right hand, mean hand and right minus left 2D:4D (Dr-l) were analysed.The mean values of 2D:4D ratio in patients were higher than those of CSIN controls. The patients showed significantly higher 2D:4D (left hand: P0.01; right hand, mean hand: P0.05) than controls. In patients, 2D:4D (especially left hand 2D:4D) were inversely associated with age at diagnosis (left hand: P0.001; right hand, mean hand: P0.05). No association between Dr-l and age or age at presentation of disease was observed in the groups.2D:4D may correlate particularly with risk of coronary heart disease in Chinese men.
- Published
- 2015
22. Narasin inhibits tumor metastasis and growth of ERα‑positive breast cancer cells by inactivation of the TGF‑β/SMAD3 and IL‑6/STAT3 signaling pathways.
- Author
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JING CHEN, XIEPING HUANG, NA LI, BOXIA LIU, ZHANBING MA, JUN LING, WENJUN YANG, and TAO LI
- Subjects
METASTASIS ,TUMOR growth ,EPITHELIAL-mesenchymal transition ,BREAST cancer ,CANCER cells - Abstract
Treatment of human estrogen receptor (ER)-positive breast cancer (ER
+ BC) using conventional chemotherapy remains a challenge and is often ineffective as a result of tumor metastasis. The present study aimed to investigate the ability of narasin, an ionophore antibiotic, to potentially inhibit tumor metastasis and growth in human ER+ BC. Narasin was found to have significant inhibitory abilities on cell proliferation, migration and invasion in ER+ BC cell lines MCF-7 and T47D compared with the triple-negative BC cell MDA‑MB-231. For the in vivo studies, narasin effectively decreased the number of tumor metastasis nodules, tumor volume and weight without apparent toxicity in human MCF-7 nude mouse left ventricle injection tumor metastasis and xenograft models. Mechanistically, it demonstrated that exposure to TGF-β or IL‑6 induced the expression of epithelial-mesenchymal transition (EMT) markers in ER+ BC cell lines. On the contrary, narasin dose-dependently reversed EMT by increasing the expression of E‑cadherin and decreasing the expression of N‑cadherin, vimentin, β‑catenin and zinc finger E‑box-binding homeobox 1 at the protein and gene expression levels. Gene microarray, molecular docking and western blotting were performed to demonstrate that those protein and gene expression levels are regulated by the inactivation of the TGF-β/phosphorylated (p)-SMAD3 and IL‑6/p-STAT3 signaling pathways. Taken together, these findings indicated that narasin may be a promising candidate that can be further optimized for the treatment of human ER+ BC. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
23. Digit ratio (2D:4D) and handgrip strength are correlated in women (but not in men) in Hui ethnicity
- Author
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Dan Shen, Hong Lu, Zhenghao Huo, Shibo Niu, Lu Wang, Zhanbing Ma, and Chun-Yue Bai
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Digit ratio ,Adolescent ,Ethnic group ,Fingers ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Sex Factors ,Physical ability ,Asian People ,Internal medicine ,medicine ,Humans ,Testosterone ,Chinese population ,Hand Strength ,business.industry ,Obstetrics and Gynecology ,030229 sport sciences ,030104 developmental biology ,Endocrinology ,Pediatrics, Perinatology and Child Health ,Female ,business ,Demography - Abstract
Digit ratio, especially second-to-fourth digit ratio (2D:4D) is used as a biomarker of prenatal testosterone exposure and was found associated with physical ability, such as handgrip strength (HGS). Recently, this association has been discussed in several ethnic groups.To investigate correlations between 2D:4D and HGS in Chinese population of Ningxia Hui ethnicity.Here we firstly present the evidence on digit ratio and HGS of 346 college students (119 males and 227 females) by collecting photographs and HGS of both hands at Yinchuan city, in the Ningxia province of China.Females have higher mean values of digit ratio than males; significant variances of 3D:5D (left and right: P0.05), 2D:3D, 3D:4D (left and right: P0.01) and 2D:4D, 2D:5D (left and right: P0.001) were found between different sex. Males showed significantly greater HGS than females on both hands. 2D:4D of both hands were significantly negative correlated with HGS in females (but not in males).2D:4D ratio is negatively correlated with HGS in a Chinese population (especially in females) of Ningxia Hui ethnicity.
- Published
- 2016
24. TaASR1, a transcription factor gene in wheat, confers drought stress tolerance in transgenic tobacco
- Author
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Guangxiao Yang, Rui Cai, Shiyi Zhou, Chao Huang, Yan Wang, Xiaomin Deng, Yin Li, Cheng Wang, Zhanbing Ma, Xiaoyu Liang, Lihong Chen, Qianqian Yuan, Guangyuan He, and Wei Hu
- Subjects
chemistry.chemical_classification ,Reactive oxygen species ,Osmotic shock ,Physiology ,Wild type ,food and beverages ,Plant Science ,Biology ,medicine.disease_cause ,Malondialdehyde ,Cell biology ,Superoxide dismutase ,chemistry.chemical_compound ,chemistry ,Biochemistry ,Catalase ,biology.protein ,medicine ,Abscisic acid ,Oxidative stress - Abstract
Abscisic acid (ABA)-, stress-, and ripening-induced (ASR) proteins are reported to be involved in abiotic stresses. However, it is not known whether ASR genes confer drought stress tolerance by utilizing the antioxidant system. In this study, a wheat ASR gene, TaASR1, was cloned and characterized. TaASR1 transcripts increased after treatments with PEG6000, ABA and H(2)O(2). Overexpression of TaASR1 in tobacco resulted in increased drought/osmotic tolerance, which was demonstrated that transgenic lines had lesser malondialdehyde (MDA), ion leakage (IL) and reactive oxygen species (ROS), but higher relative water content (RWC) and superoxide dismutase (SOD) and catalase (CAT) activities than wild type (WT) under drought stress. Overexpression of TaASR1 in tobacco also enhanced the expression of ROS-related and stress-responsive genes under osmotic stress. In addition, transgenic lines exhibited improved tolerance to oxidative stress by retaining more effective antioxidant system. Finally, TaASR1 was localized in the cell nucleus and functioned as a transcriptional activator. Taken together, our results showed that TaASR1 functions as a positive factor under drought/osmotic stress, involved in the regulation of ROS homeostasis by activating antioxidant system and transcription of stress-associated genes.
- Published
- 2013
25. Overexpression of a Wheat Aquaporin Gene, TaAQP8, Enhances Salt Stress Tolerance in Transgenic Tobacco
- Author
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Qianqian Yuan, Lihong Chen, Guangyuan He, Jie Wang, Yan Wang, Mingjie Chen, Xiaomin Deng, Shiyi Zhou, Chao Huang, Zhanbing Ma, Wei Hu, Rui Cai, and Guangxiao Yang
- Subjects
Physiology ,Recombinant Fusion Proteins ,Transgene ,Molecular Sequence Data ,Aquaporin ,Plant Science ,Sodium Chloride ,Aquaporins ,Plant Roots ,Green fluorescent protein ,Superoxide dismutase ,Xenopus laevis ,Gene Expression Regulation, Plant ,Cations ,Onions ,Tobacco ,Animals ,Triticum ,Peroxidase ,Plant Proteins ,chemistry.chemical_classification ,Reactive oxygen species ,Base Sequence ,biology ,Superoxide Dismutase ,Chemistry ,Cell Membrane ,Biological membrane ,Hydrogen Peroxide ,Salt Tolerance ,Sequence Analysis, DNA ,Cell Biology ,General Medicine ,Ethylenes ,Catalase ,Plants, Genetically Modified ,Molecular biology ,Biochemistry ,Seedlings ,Oocytes ,biology.protein ,Signal Transduction - Abstract
Aquaporin (AQP) proteins have been shown to transport water and other small molecules through biological membranes, which is crucial for plants to combat salt stress. However, the precise role of AQP genes in salt stress response is not completely understood in plants. In this study, a PIP1 subgroup AQP gene, designated TaAQP8, was cloned and characterized from wheat. Transient expression of TaAQP8-green fluorescent protein (GFP) fusion protein revealed its localization in the plasma membrane. TaAQP8 exhibited water channel activity in Xenopus laevis oocytes. TaAQP8 transcript was induced by NaCl, ethylene and H(2)O(2). Further investigation showed that up-regulation of TaAQP8 under salt stress involves ethylene and H(2)O(2) signaling, with ethylene causing a positive effect and H(2)O(2) acting as a negative factor. Overexpression of TaAQP8 in tobacco increased root elongation compared with controls under salt stress. The roots of transgenic plants also retained a high K(+)/Na(+) ratio and Ca(2+) content, but reduced H(2)O(2) accumulation by an enhancement of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities under salt stress. Further investigation showed that whole seedlings from transgenic lines displayed higher SOD, CAT and POD activities, increased NtSOD and NtCAT transcript levels, and decreased H(2)O(2) accumulation and membrane injury under salt stress. Taken together, our results demonstrate that TaAQP8 confers salt stress tolerance not only by retaining high a K(+)/Na(+) ratio and Ca(2+) content, but also by reducing H(2)O(2) accumulation and membrane damage by enhancing the antioxidant system.
- Published
- 2012
26. Digit ratio (2D:4D) and handgrip strength in a Chinese population of Han ethnicity
- Author
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Lu Wang, Wenli Qian, Dan Shen, Hong Lu, Jun-li Zhao, Zhenghao Huo, and Zhanbing Ma
- Subjects
Male ,Digit ratio ,China ,Adolescent ,Ethnic group ,Fingers ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Physical ability ,Medicine ,Humans ,0601 history and archaeology ,Chinese population ,Sex Characteristics ,060101 anthropology ,Traditional medicine ,Hand Strength ,business.industry ,Obstetrics and Gynecology ,06 humanities and the arts ,Index finger ,Sexual dimorphism ,medicine.anatomical_structure ,Physical performance ,Pediatrics, Perinatology and Child Health ,Trait ,Female ,business ,030217 neurology & neurosurgery ,Demography - Abstract
Background In humans, the relative lengths of the index finger to the ring finger (2D:4D) is a sexually dimorphic trait which correlated with prenatal sex steroids and has been increasingly used as a promising tool to evaluate the impact of prenatal hormone exposure in some traits, such as physical performance. Handgrip strength (HGS) is one potent index of physical ability and its relationship with 2D:4D ratio has been discussed in several ethnic groups. Aims To investigate whether there is a correlation between 2D:4D ratio and HGS in Chinese college students of Ningxia Han ethnicity. Methods 608 students (211 males and 397 females) of Han ethnicity were recruited from Ningxia medical university. Photocopies and HGS of both hands were collected at Yinchuan city, in the Ningxia province of China. Results Sexual dimorphism of 2D:4D and HGS were found, males had significantly lower 2D:4D and greater HGS than females. 2D:4D in both hands were significantly negative correlated with HGS in females and not in males. Conclusions 2D:4D ratio is negative correlated with HGS in a Chinese population of Ningxia Han ethnicity and this association should be considered on the anthropological research within an evolutionary concept in the future.
- Published
- 2016
27. Digit ratio (2D:4D) in a Chinese population with schizophrenia
- Author
-
Wenli Qian, Youjing Sheng, Hong Lu, Zhi Geng, Zhanbing Ma, and Zhenghao Huo
- Subjects
Adult ,Male ,medicine.medical_specialty ,Digit ratio ,China ,medicine.drug_class ,Physiology ,Fingers ,03 medical and health sciences ,0302 clinical medicine ,Sex Factors ,Internal medicine ,medicine ,Humans ,Testosterone ,Chinese population ,Case-control study ,Obstetrics and Gynecology ,Middle Aged ,medicine.disease ,Endocrinology ,Estrogen ,Schizophrenia ,030220 oncology & carcinogenesis ,Case-Control Studies ,Pediatrics, Perinatology and Child Health ,Female ,Age of onset ,Psychology ,030217 neurology & neurosurgery ,Gonadal hormones - Abstract
Background Prenatal gonadal hormones may play a major role in pathogenesis of schizophrenia. It has been reported that second to fourth digit ratio (2D:4D) was influenced by the levels of exposure to prenatal testosterone and estrogen. So, 2D:4D may help to predict the disease susceptibility to schizophrenia. Aims The aim of this study was to investigate the relationship between the digit ratio (2D:4D) and schizophrenia in Chinese population. Methods We recruited 178 schizophrenics (males: 76; females: 102) and 365 controls (males: 218; females: 147) in this study. Photocopies of both hands were collected and left hand, right hand, mean hand and left minus right hand (DL-R) 2D:4D were analyzed. Results The right and mean hand 2D:4D ratios were significantly higher in schizophrenics compared to that of controls in both males and females. The left hand 2D:4D ratio in female schizophrenics was also significantly higher than in controls. Compared to controls, the DL-R 2D:4D in male schizophrenics was obviously higher. There was a weakly (but not significantly) negative correlation between the mean hand 2D:4D ratio and the age of onset. Conclusions The 2D:4D ratio may correlate with the schizophrenia in Chinese population, and it may be an indicator of schizophrenia.
- Published
- 2016
28. Dermatoglyphs in Coronary Artery Disease Among Ningxia Population of North China
- Author
-
Zhenghao Huo, Zhi Geng, Zhanbing Ma, Hong Lu, Youjing Sheng, Wenli Qian, and Haochen Yu
- Subjects
medicine.medical_specialty ,Dermatoglyphic patterns ,Clinical Biochemistry ,Population ,North china ,lcsh:Medicine ,anatomical marker ,Disease ,health problem ,dermatoglyphic patterns ,Bioinformatics ,Coronary artery disease ,Internal medicine ,medicine ,education ,education.field_of_study ,business.industry ,lcsh:R ,Significant difference ,General Medicine ,medicine.disease ,Cardiology ,Anatomy Section ,Dermatoglyphics ,Palm ,business - Abstract
Background: Coronary artery disease (CAD) is an enormous health problem in the world. Dermatoglyphs are cutaneous ridges on the fingers, palms, and soles, formed by genetic regulation and control during early intrauterine life. The Dermatoglyphic traits do not change significantly as the growth of the age. They may be the phenotypic characters of individual genes and represent the predisposition to certain diseases. Aims and Objectives: The study was carried out to document characteristic dermatoglyphic patterns in coronary artery disease which could be useful in early diagnosis of the disease. Materials and Methods: Dermatoglyphic study of 258 male (129 coronary artery disease cases and 129 normal subjects) of Ningxia China were studied in the present cross-sectional study. It involved the digital patterns, ATD angles, A-B ridge counts on the hands. Chi-square test, t-test were used for the statistical analysis in this study. Results: The overall frequency of whorls was higher followed by loop and arch in both two groups. It was observed that there was significant difference of digital frequency of whorls and ulnar loops in patients in both hands as compared to controls (p≤0.01). The mean value of finger ridge counts, total ridge counts were similar between two groups. The A-B ridge counts were significantly higher in coronary artery disease compared with controls on the right palm (p≤0.01). However, the mean ATD angle values were significantly higher in cases than those of in normal on both hands (p
- Published
- 2015
29. TaASR1, a transcription factor gene in wheat, confers drought stress tolerance in transgenic tobacco
- Author
-
Wei, Hu, Chao, Huang, Xiaomin, Deng, Shiyi, Zhou, Lihong, Chen, Yin, Li, Cheng, Wang, Zhanbing, Ma, Qianqian, Yuan, Yan, Wang, Rui, Cai, Xiaoyu, Liang, Guangxiao, Yang, and Guangyuan, He
- Subjects
Molecular Sequence Data ,Gene Expression ,Water ,Hydrogen Peroxide ,Saccharomyces cerevisiae ,Plants, Genetically Modified ,Adaptation, Physiological ,Droughts ,Oxidative Stress ,Plant Growth Regulators ,Gene Expression Regulation, Plant ,Genes, Reporter ,Osmotic Pressure ,Seedlings ,Malondialdehyde ,Tobacco ,Amino Acid Sequence ,Reactive Oxygen Species ,Triticum ,Abscisic Acid ,Plant Proteins ,Signal Transduction ,Transcription Factors - Abstract
Abscisic acid (ABA)-, stress-, and ripening-induced (ASR) proteins are reported to be involved in abiotic stresses. However, it is not known whether ASR genes confer drought stress tolerance by utilizing the antioxidant system. In this study, a wheat ASR gene, TaASR1, was cloned and characterized. TaASR1 transcripts increased after treatments with PEG6000, ABA and H(2)O(2). Overexpression of TaASR1 in tobacco resulted in increased drought/osmotic tolerance, which was demonstrated that transgenic lines had lesser malondialdehyde (MDA), ion leakage (IL) and reactive oxygen species (ROS), but higher relative water content (RWC) and superoxide dismutase (SOD) and catalase (CAT) activities than wild type (WT) under drought stress. Overexpression of TaASR1 in tobacco also enhanced the expression of ROS-related and stress-responsive genes under osmotic stress. In addition, transgenic lines exhibited improved tolerance to oxidative stress by retaining more effective antioxidant system. Finally, TaASR1 was localized in the cell nucleus and functioned as a transcriptional activator. Taken together, our results showed that TaASR1 functions as a positive factor under drought/osmotic stress, involved in the regulation of ROS homeostasis by activating antioxidant system and transcription of stress-associated genes.
- Published
- 2012
30. Genome-Wide Identification and Analysis of MAPK and MAPKK Gene Families in Brachypodium distachyon
- Author
-
Guangyuan He, Min Wang, Yang Zhang, Guangxiao Yang, Lihong Chen, Zhanbing Ma, Shiyi Zhou, Shenglong Tan, Xiaomin Deng, Wei Hu, and Chao Huang
- Subjects
Light ,Arabidopsis ,lcsh:Medicine ,Gene Expression ,Plant Science ,Signal transduction ,Plant Genetics ,Genome ,Molecular cell biology ,Gene Expression Regulation, Plant ,Gene Duplication ,Plant Genomics ,Arabidopsis thaliana ,lcsh:Science ,Promoter Regions, Genetic ,Phylogeny ,Plant Proteins ,Genetics ,Multidisciplinary ,biology ,Temperature ,Signaling cascades ,food and beverages ,Genomics ,Multigene Family ,Brachypodium ,Brachypodium distachyon ,Mitogen-Activated Protein Kinases ,Genome, Plant ,Protein Binding ,Research Article ,MAPK signaling cascades ,Molecular Sequence Data ,Genes, Plant ,Synteny ,Chromosomes, Plant ,Molecular Genetics ,Stress, Physiological ,Terminology as Topic ,Gene family ,Amino Acid Sequence ,Biology ,Gene ,Mitogen-Activated Protein Kinase Kinases ,Evolutionary Biology ,Gene Expression Profiling ,lcsh:R ,Molecular Sequence Annotation ,Oryza ,Genomic Evolution ,Comparative Genomics ,biology.organism_classification ,Protein Structure, Tertiary ,lcsh:Q ,Gene Function ,Genome Expression Analysis ,Sequence Alignment ,Cloning - Abstract
MAPK cascades are universal signal transduction modules and play important roles in plant growth, development and in response to a variety of biotic and abiotic stresses. Although MAPKs and MAPKKs have been systematically investigated in several plant species including Arabidopsis, rice and poplar, no systematic analysis has been conducted in the emerging monocot model plant Brachypodium distachyon. In the present study, a total of 16 MAPK genes and 12 MAPKK genes were identified from B. distachyon. An analysis of the genomic evolution showed that both tandem and segment duplications contributed significantly to the expansion of MAPK and MAPKK families. Evolutionary relationships within subfamilies were supported by exon-intron organizations and the architectures of conserved protein motifs. Synteny analysis between B. distachyon and the other two plant species of rice and Arabidopsis showed that only one homolog of B. distachyon MAPKs was found in the corresponding syntenic blocks of Arabidopsis, while 13 homologs of B. distachyon MAPKs and MAPKKs were found in that of rice, which was consistent with the speciation process of the three species. In addition, several interactive protein pairs between the two families in B. distachyon were found through yeast two hybrid assay, whereas their orthologs of a pair in Arabidopsis and other plant species were not found to interact with each other. Finally, expression studies of closely related family members among B. distachyon, Arabidopsis and rice showed that even recently duplicated representatives may fulfill different functions and be involved in different signal pathways. Taken together, our data would provide a foundation for evolutionary and functional characterization of MAPK and MAPKK gene families in B. distachyon and other plant species to unravel their biological roles.
- Published
- 2012
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