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Wang D, Wang H, Chen X, Xu Y, He W, Wu D, Zuo M, Zhu W, Wang L. Five previously undescribed citrinin derivatives from the endophytic fungus Penicillium citrinum GZWMJZ-836. Phytochemistry 2024; 220:114032. [PMID: 38369172 DOI: 10.1016/j.phytochem.2024.114032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Penicillium citrinum GZWMJZ-836 is an endophytic fungus from Drynaria roosii Nakaike. Five previously undescribed citrinin derivatives (1-5) and six intermediates related to their biosynthesis (6-11) were obtained from the extract of this strain's solid fermentation using multiple column chromatography separations, including high-performance liquid chromatography. The structures of these compounds were determined through comprehensive spectroscopic analyses, primarily using NMR and HRESIMS data. The stereochemistry was mainly confirmed by ECD calculations, and the configurations of C-7' in compounds 4 and 5 were determined using 13C NMR calculations. Compounds 4-5 and 8 showed antibacterial activity against five strains, with minimum inhibitory concentration values ranging from 7.8 to 125 μM. Compounds 4 and 7 exhibited inhibitions against three plant pathogenic fungi, with IC50 values ranging from 66.6 to 152.1 μM. Additionally, a putative biosynthetic pathway for compounds 1-5 derived from citrinin was proposed.
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Affiliation(s)
- Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Huanhuan Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Xuli Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266003, China.
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China.
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Wang D, Zhuang X, Yin Y, Wu D, He W, Zhu W, Xu Y, Zuo M, Wang L. Indole Diterpene Derivatives from the Aspergillus flavus GZWMJZ-288, an Endophytic Fungus from Garcinia multiflora. Molecules 2023; 28:7931. [PMID: 38067659 PMCID: PMC10707737 DOI: 10.3390/molecules28237931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
A new indole diterpene, 26-dihydroxyaflavininyl acetate (1), along with five known analogs (2-6) were isolated from the liquid fermentation of Aspergillus flavus GZWMJZ-288, an endophyte from Garcinia multiflora. The structures of these compounds were identified through NMR, MS, chemical reaction, and X-ray diffraction experiments. Enzyme inhibition activity screening found that compounds 1, 4, and 6 have a good binding affinity with NPC1L1, among which compound 6 exhibited a stronger binding ability than ezetimibe at a concentration of 10 µM. Moreover, compound 5 showed inhibitory activity against α-glucosidase with an IC50 value of 29.22 ± 0.83 µM, which is 13 times stronger than that of acarbose. The results suggest that these aflavinine analogs may serve as lead compounds for the development of drugs targeting NPC1L1 and α-glucosidase. The binding modes of the bioactive compounds with NPC1L1 and α-glucosidase were also performed through in silico docking studies.
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Grants
- U1812403, QKHJC-ZK[2021]ZD017, QKHZC[2022]YB191, QKHJC-ZK [2022]YB392, QKHZYD[2022]4015, RZ [2022]4, J [2020]006, 19NSP078, 20NSP065, QKTCZJZ [2022]02 the National Natural Science Foundation of China, Guizhou Provincial Basic Research Program (Natural Science), Guizhou Provincial Key Technology R&D Program, "Light of the West" Talent Cultivation Program of Chinese Academy of Sciences, Guizhou Medical U
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Affiliation(s)
- Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Xiaohong Zhuang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Ying Yin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
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Xu Y, Liu W, Wu D, He W, Zuo M, Wang D, Fu P, Wang L, Zhu W. Sulfur-Containing Phenolic Compounds from the Cave Soil-Derived Aspergillus fumigatus GZWMJZ-152. J Nat Prod 2022; 85:433-440. [PMID: 35107296 DOI: 10.1021/acs.jnatprod.1c01158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Six new sulfur-containing phenolic compounds (1-6) and their putative metabolic precursors (7-9) were isolated from the cave soil-derived fungus Aspergillus fumigatus GZWMJZ-152. Compound 1 represents an unusual benzophenone-diketopiperazine hybrid via a thioether linker, while compound 2 contains a naturally rare sulfoxide group. Both compounds 2 and 3 were initially isolated as racemic mixtures and then purified as the enantiomerically pure (+)-2, (-)-2, (+)-3, and (-)-3, respectively. Their structures, including absolute configurations, were elucidated by spectroscopic analysis, X-ray diffraction, and the calculations of electronic circular dichroism. The antioxidant activity of compounds 1-9 was evaluated based on oxygen radical absorbance capacity, 2,2-diphenyl-1-picrylhydrazyl radical scavenging, and the protective effect on the PC12 cell line against H2O2-induced damage. Compounds 5-7 and 9 showed radical-scavenging activity against 2,2-diphenyl-1-picrylhydrazyl free radicals with the IC50 values of 3.45 ± 0.02, 23.73 ± 0.08, 18.90 ± 0.16, and 17.27 ± 0.15 μM, respectively. Compounds (±)-2, 4, 7, and 8 exhibited potent antioxidant capacity with oxygen radical absorbance capacity values of 1.73 ± 0.13, 1.65 ± 0.03, 6.14 ± 0.35, and 1.55 ± 0.04 μmol TE/μmol, respectively. Compounds (±)-2 and (±)-3 also exhibited protective effects on oxidative injury of PC12 cells induced by H2O2.
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Affiliation(s)
- Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Wen Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
| | - Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China
| | - Peng Fu
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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Gao T, Wang X, Liu Y, Wang H, Zuo M, He Y, Li H, Li G, Li C, Li X, Li X, Yang Y. Characteristics and diversity of microbial communities in lead-zinc tailings under heavy metal stress in north-west China. Lett Appl Microbiol 2021; 74:277-287. [PMID: 34822179 DOI: 10.1111/lam.13608] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/15/2021] [Accepted: 10/31/2021] [Indexed: 11/30/2022]
Abstract
High-throughput 16S rRNA and 18S rRNA sequencing were performed to study the changes of soil microbial diversity and community structure under different heavy metal pollution levels in Chengxian lead-zinc mining area, Gansu Province. In this study, we characterized the main physicochemical properties, multiple heavy metal pollution, and microbial community structure of the soil in the tailings. The results show that the soil near the tailings pond was alkaline, barren and the heavy metals were seriously polluted. The microbial diversity and richness of S1 and S2 sites were significantly lower than that of CK2 site (P < 0·05), indicating that the heavy metal pollution could change the physicochemical properties and microbial community structure in soil. Among 97 identified core operating taxa of fungal communities, Ascomycota, Teguta and Basidiomycota were dominant at the phylum level, while among 1523 identified core operating taxa of bacterial communities, Actinomycota was dominant at the phylum level. In addition, the redundancy analysis and Spearman correlation analysis showed that the physicochemical properties and the heavy metal concentration had significant effects on the composition and distribution of soil microbial community. The basic characteristics of soil physicochemical properties, multiple heavy metal pollution and microbial community structure in the tailings were revealed, hoping to provide a basis for ecological rehabilitation of tailings by revealing the variance rule of microbial community diversity in the future.
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Affiliation(s)
- T Gao
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, China.,Engineering Center for Pollution Control and Ecological Restoration in Mining of Gansu Province, Lanzhou City University, Lanzhou, China
| | - X Wang
- Xi'an Institute of Environment Sanitation Sciences, Xi'an, China
| | - Y Liu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, China
| | - H Wang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, China
| | - M Zuo
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, China
| | - Y He
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, China
| | - H Li
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, China
| | - G Li
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, China
| | - C Li
- Engineering Center for Pollution Control and Ecological Restoration in Mining of Gansu Province, Lanzhou City University, Lanzhou, China
| | - X Li
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, PR China
| | - X Li
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, China
| | - Y Yang
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, China
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Qin Y, Zhang S, Cui S, Shen X, Wang J, Cui X, Zuo M, Gao Z, Zhang J, Yang J, Zhu H, Chang B. High urinary excretion rate of glucose attenuates serum uric acid level in type 2 diabetes with normal renal function. J Endocrinol Invest 2021; 44:1981-1988. [PMID: 33515212 PMCID: PMC8357730 DOI: 10.1007/s40618-021-01513-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/18/2021] [Indexed: 12/15/2022]
Abstract
AIMS/INTRODUCTION The relationship between urinary excretion rate of glucose (UEGL) and uric acid (UA) metabolism in adults with type 2 diabetes (T2D) remains unclear to date. This study aimed to investigate the relationships of UEGL with serum UA (SUA), urinary excretion rate of uric acid (UEUA), and renal clearance of uric acid (CLUA) in adults with T2D. We hypothesised that high UEGL increases UA excretion, which in turn leads to lower SUA. MATERIALS AND METHODS This was a cross-sectional study of 635 inpatients with T2D recruited between 2018 and 2019. The relationships of UEGL with UEUA, CLUA, and hyperuricaemia were assessed using analysis of covariance and multivariate regression analysis. RESULTS Patients in the higher quartile of UEGL tended to have lower SUA levels than those in the lower quartile. In contrast, patients in the higher quartile of UEGL tended to have higher CLUA (p for trend < 0.0001), and a similar trend was observed for UEUA. In adjusted multivariable linear regression model, UEGL was negatively correlated with SUA (β = - 0.023, 95% CI - 0.034 to - 0.013, p < 0.0001). However, positive correlations of UEGL with UEUA (β = 0.046, 95% CI 0.018-0.074, p = 0.001) and CLUA (β = 0.063, 95% CI 0.042-0.085, p < 0.0001) were found. Furthermore, consistent significant inverse associations were observed between quartiles of UEGL and hyperuricaemia in the adjusted multivariate logistic regression model. CONCLUSIONS A high UEGL level was positively correlated with UEUA and CLUA. Moreover, it was inversely associated with SUA level, and a consistently increased UEGL level reduced the risk of hyperuricaemia in patients with T2D.
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Affiliation(s)
- Y Qin
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- Department of Endocrinology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - S Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S Cui
- Department of Endocrinology, Tianjin First Central Hospital, The First Center Clinical College of Tianjin Medical University, Tianjin, China
| | - X Shen
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Wang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - X Cui
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - M Zuo
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Z Gao
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Yang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - H Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - B Chang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China.
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Feng GW, Liu X, Qi Q, Wang SJ, Yang CT, Zuo M, Zhang GZ. Skin Ultrastructure and the Changes of HIF-2α, H-FABP Expression in the Myocardium of Electric Shock Death Rats. Fa Yi Xue Za Zhi 2021; 37:158-165. [PMID: 34142475 DOI: 10.12116/j.issn.1004-5619.2020.400321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To observe the skin ultrastructure change of electric shock death rats and to test the expression changes of hypoxia-inducible factor-2α (HIF-2α) and heart type-fatty acid-binding protein (H-FABP) of myocardial cells, in order to provide basis for forensic identification of electric shock death. Methods The electric shock model of rats was established. The 72 rats were randomly divided into control group, electric shock death group and postmortem electric shock group. Each group was divided into three subgroups, immediate (0 min), 30 min and 60 min after death. The skin changes of rats were observed by HE staining, the changes of skin ultrastructure were observed by scanning electron microscopy, and the expression of HIF-2α and H-FABP in rats myocardium was tested by immunohistochemical staining. Results The skin in the electric shock death group and postmortem electric shock group had no significant difference through the naked eye or by HE staining. Under the scanning electron microscope, a large number of cellular debris, cells with unclear boundaries, withered cracks, circular or elliptical holes scattered on the cell surface and irregular edges were observed. A large number of spherical foreign body particles were observed. Compared with the control group, the expression of HIF-2α in all electric shock death subgroups increased, reaching the peak immediately after death. In the postmortem electric shock group, HIF-2α expression only increased immediately after death, but was lower than that of electric shock death group (P<0.05). Compared with the control group, the expression of H-FABP in all subgroups of electric shock death group and postmortem electric shock group significantly decreased. The expression of H-FABP in all subgroups of electric shock death group was lower than that of the postmortem electric shock group (P<0.05). Conclusion Electric shock can increase HIF-2α expression and decrease H-FABP expression in the myocardium, which may be of forensic significance for the determination of electric shock death and identification of antemortem and postmortem electric shock.
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Affiliation(s)
- G W Feng
- Judicial Expertise Center, the First Hospital of Hebei Medical University, Shijiazhuang 050031, China
| | - X Liu
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Q Qi
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - S J Wang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - C T Yang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - M Zuo
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - G Z Zhang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
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He W, Xu Y, Fu P, Zuo M, Liu W, Jiang Y, Wang L, Zhu W. Cytotoxic Indolyl Diketopiperazines from the Aspergillus sp. GZWMJZ-258, Endophytic with the Medicinal and Edible Plant Garcinia multiflora. J Agric Food Chem 2019; 67:10660-10666. [PMID: 31479263 DOI: 10.1021/acs.jafc.9b04254] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two new indolyl diketopiperazines, gartryprostatins A and B (1 and 2), with an unusual 2,3-furan-fused pyrano[2,3-g]pyrrolo[1″,2″:4',5']pyrazino[1',2':1,5]pyrrolo[2,3-b]indole nucleus, along with a new naturally occurring compound (gartryprostatin C, 3) were isolated from the solid culture of Aspergillus sp. GZWMJZ-258, an endophyte from Garcinia multiflora (Guttiferae). The structures of compounds 1-3 were determined by nuclear magnetic resonance, mass spectrometry, Marfey's analysis of amino acids, and chemical calculation. Compounds 1-3 displayed selective inhibition on human FLT3-ITD mutant AML cell line, MV4-11, with IC50 values of 7.2, 10.0, and 0.22 μM, respectively.
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Affiliation(s)
- Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Peng Fu
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong 266003 , China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Wen Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
| | - Yangming Jiang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang , Guizhou 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang , Guizhou 550025 , China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang , Guizhou 550014 , China
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong 266003 , China
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Li M, Xu Y, Zuo M, Liu W, Wang L, Zhu W. Semisynthetic Derivatives of Fradcarbazole A and Their Cytotoxicity against Acute Myeloid Leukemia Cell Lines. J Nat Prod 2019; 82:2279-2290. [PMID: 31361136 DOI: 10.1021/acs.jnatprod.9b00468] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fourteen derivatives of the marine-derived fradcarbazole A were synthesized from staurosporine. Their structures were identified by NMR and high-resolution electrospray ionization mass spectrometry (HRESIMS). The derivatives were screened in vitro for antiproliferative activity against three human leukemic cell lines (MV4-11, HL-60, K562). All of the derivatives displayed cytotoxicity against the human FLT-3 internal tandem duplication (ITD) mutant acute myeloid leukemia (AML) cell line MV4-11 with IC50 values of 0.32-0.96 μM. The mechanism of action studies indicated that the most effective 3-chloro-5‴-fluorofradcarbazole A (6) induced apoptosis of the MV4-11 cells and arrested the cell cycle at the G0/G1 phase. Furthermore, compound 6 can reduce the expression of FLT-3, CDK2, and c-kit. The results suggest that 3-chloro-5‴-fluorofradcarbazole A (6) is a potential candidate for developing novel anti-AML agents in the future.
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Affiliation(s)
- Mingpeng Li
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang 550025 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang 550014 , China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang 550025 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang 550014 , China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang 550025 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang 550014 , China
| | - Wen Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang 550014 , China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- School of Pharmaceutical Sciences , Guizhou Medical University , Guiyang 550025 , China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province , Chinese Academy of Sciences , Guiyang 550014 , China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
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Xu Y, Wang L, Zhu G, Zuo M, Gong Q, He W, Li M, Yuan C, Hao X, Zhu W. New phenylpyridone derivatives from the Penicillium sumatrense GZWMJZ-313, a fungal endophyte of Garcinia multiflora. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.08.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yang CT, Zuo M, Wang SJ, Liu X, Ma RF, Qi Q, Bi HT, Li YM, Zhang GZ. Estimation on Formation Time of Thrombus. Fa Yi Xue Za Zhi 2018; 34:352-358. [PMID: 30465397 DOI: 10.12116/j.issn.1004-5619.2018.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To observe the changes of the formation time of venous thrombus in rats, and to provide new ideas and methods for the estimation on thrombus formation time of the forensic cases died from thrombosis. METHODS Totally 80 rats were randomly divided into 10 groups (0 h, 3 h, 6 h, 12 h, 1 d, 3 d, 1 week, 2 weeks, 3 weeks and 4 weeks after operation). A vein thrombosis model was established by the "narrow" method. The processes of thrombosis, organization, recanalization and the features of change on hemosiderin and calcium salt were observed by HE stain, Perls stain and Von Kossa stain. The expression changes of CD61, α-SMA and CD34 were observed by immunohistochemical staining technique. RESULTS Platelets adhered to the exposed blood vessel intima 3 h after operation, and platelet trabeculae were formed by the repeated accumulation of platelets 1 d after operation. The thrombus organization formed through the fibroblasts from vessel wall that grew into the interior of the thrombus 3 d after operation. Endothelial cells covered the surface of thrombus and then the new blood vessels were reformed, and the vessels were reconstructed. The expression of CD61 upregulated at the stages of the thrombus formation (3 h) and thrombus reformation (4 weeks), and reached the peak 1 d after thrombus formation. The release of hemosiderin and the initial expression of α-SMA were detected 3 d later. Calcium deposit and expression of CD34 were observed 1 week later. CONCLUSIONS The hemosiderin, calcium salt, CD61, α-SMA and CD34 show time-dependent changing characteristics, which is expected to provide a reference for the estimation on thrombus formation time of the forensic cases died from thrombosis.
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Affiliation(s)
- C T Yang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - M Zuo
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - S J Wang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - X Liu
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - R F Ma
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Q Qi
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - H T Bi
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Y M Li
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - G Z Zhang
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
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Xu Y, Wang L, Gong Q, Zhu G, Yuan C, Zuo M, Rao Q, Zhu W, Hao X. Kojic Acid Derivatives and Sesquiterpenes from the Aspergillus flavus GZWMJZ-288, A Fungal Endophyte of Garcinia multiflora. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
One new kojic acid dimer, dikojiacid A (1), one new naturally occurring kojic acid dimer, dikojiacid B (2), one new sesquiterpene, 12-hydroxy-8-ene-3-oxodrimenol (6), as well as three known kojic acid derivatives (3–5) and five sesquiterpenes (7–11) were isolated from a solid culture of the endophytic fungus Aspergillus flavus GZWMJZ-288 with Garcinia multiflora. The structures of the new compounds were determined on the basis of spectroscopic data and ECD calculation. This is the first report for the natural kojic acid dimers by which Aspergillus flavus GZWMJZ-288 avoids the injury from acetaldehyde.
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Affiliation(s)
- Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Qianyu Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Guoliang Zhu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Chunmao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Qing Rao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
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Li H, Zuo M, Zhao X, Zhang B, Gelb A, Yao D, Xia D, Li M, Wang K, Wu L, Huang Y. Abstract PR589. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492969.38623.3d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Liu X, Zuo M, Wang T, Sun Y, Liu S, Hu S, He H, Yang Q, Rang J, Quan M, Xia L, Ding X. Proteomic analysis of the influence of Cu(2+) on the crystal protein production of Bacillus thuringiensis X022. Microb Cell Fact 2015; 14:153. [PMID: 26438125 PMCID: PMC4595308 DOI: 10.1186/s12934-015-0339-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 09/11/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Bacillus thuringiensis X022, a novel strain isolated from soil in China, produces diamond-shaped parasporal crystals. Specific mineral nutrients, such as Mg, Cu, and Mn, influence insecticidal crystal proteins (ICP) expression and the effects of these elements vary significantly. However, the molecular mechanisms of the effects caused by mineral elements have yet to be reported. RESULTS The ICP are mainly composed of Cry1Ca, Cry1Ac, and Cry1Da, which have molecular weights of about 130 kDa. ICP production was most efficient when Cu(2+) was added at concentrations ranging from 10(-6) to 10(-4) mol/L at an initial pH of 8.0. Addition of Cu(2+) also evidently increased the toxicity of fermentation broth to Spodoptera exigua and Helicoverpa armigera. After analyzing changes in proteome and fermentation parameters caused by Cu(2+) addition, we propose that Cu(2+) increases PhaR expression and consequently changes the carbon flow. More carbon sources was used to produce intracellular poly-β-hydroxybutyrate (PHB). Increases in PHB as a storage material bring about increases of ICP production. CONCLUSIONS Bacillus thuringiensis X022 mainly expresses Cry1Ca, Cry1Ac, and Cry1Da. Cu(2+) increases the expression of Cry1Da, Cry1Ca, and also enhances the toxicity of fermentation broth to S. exigua and H. armigera.
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Affiliation(s)
- Xuemei Liu
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Mingxing Zuo
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Ting Wang
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Yunjun Sun
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Shuang Liu
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Shengbiao Hu
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Hao He
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Qi Yang
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Jie Rang
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Meifang Quan
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Liqiu Xia
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
| | - Xuezhi Ding
- College of Life Science, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Hunan Normal University, Changsha, 410081, China.
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He H, Zhu Y, Chi L, Zhao Z, Wang T, Zuo M, Zhang T, Zhou F, Xia L, Ding X. [Screening and antibacterial function of Bacillus amyloliquefaciens X030]. Wei Sheng Wu Xue Bao 2015; 55:1133-1143. [PMID: 26762026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE We isolated 339 bacillus strains from 72 soil samples all over the country, then purified their antimicrobial compounds and studied the antibacterial activity, to enrich bacillus resources and explore their second metabolites. METHODS A bacillus strain with strong antibacterial activity was selected by dilution plate and water bath heating from a soil sample from a peanut plantation in Henan Province; this strain was identified according to morphological observation, physiological and biochemical characteristics, and consequences of 16S rRNA homologous analysis. Antibacterial compound from the identified strain, Bacillus amyloliquefaciens X030, was separated and purified by acetone precipitation, Sephadex chromatography, C18 reverse phase column chromatography. Its molecular weight was analyzed by LC-MS/MS. The antibacterial activity was characterized by disc diffusion and plate two-way cultivation. RESULTS Bacillus amyloliquefaciens was isolated that not only has antibacterial activity against Staphylococcus aureus, Candida albican and Saccharomycetes; but also against Pyriculariaoryzae, Chili pointed cell anthrax, Gloeosporium eriobotryae speg and Phytophthora parasitica. The compound was confirmed as polypeptide. CONCLUSION Bacillus amyloliquefaciens X030 can produce a polypeptide that inhibits pathogenic bacteria and plant pathogenic fungi.
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Rang J, He H, Wang T, Ding X, Zuo M, Quan M, Sun Y, Yu Z, Hu S, Xia L. Comparative analysis of genomics and proteomics in Bacillus thuringiensis 4.0718. PLoS One 2015; 10:e0119065. [PMID: 25781161 PMCID: PMC4363619 DOI: 10.1371/journal.pone.0119065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 01/09/2015] [Indexed: 11/18/2022] Open
Abstract
Bacillus thuringiensis is a widely used biopesticide that produced various insecticidal active substances during its life cycle. Separation and purification of numerous insecticide active substances have been difficult because of the relatively short half-life of such substances. On the other hand, substances can be synthetized at different times during development, so samples at different stages have to be studied, further complicating the analysis. A dual genomic and proteomic approach would enhance our ability to identify such substances, and particularily using mass spectrometry-based proteomic methods. The comparative analysis for genomic and proteomic data have showed that not all of the products deduced from the annotated genome could be identified among the proteomic data. For instance, genome annotation results showed that 39 coding sequences in the whole genome were related to insect pathogenicity, including five cry genes. However, Cry2Ab, Cry1Ia, Cytotoxin K, Bacteriocin, Exoenzyme C3 and Alveolysin could not be detected in the proteomic data obtained. The sporulation-related proteins were also compared analysis, results showed that the great majority sporulation-related proteins can be detected by mass spectrometry. This analysis revealed Spo0A~P, SigF, SigE(+), SigK(+) and SigG(+), all known to play an important role in the process of spore formation regulatory network, also were displayed in the proteomic data. Through the comparison of the two data sets, it was possible to infer that some genes were silenced or were expressed at very low levels. For instance, found that cry2Ab seems to lack a functional promoter while cry1Ia may not be expressed due to the presence of transposons. With this comparative study a relatively complete database can be constructed and used to transform hereditary material, thereby prompting the high expression of toxic proteins. A theoretical basis is provided for constructing highly virulent engineered bacteria and for promoting the application of proteogenomics in the life sciences.
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Affiliation(s)
- Jie Rang
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Hao He
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Ting Wang
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Xuezhi Ding
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
- * E-mail: (XZD); (LQX)
| | - Mingxing Zuo
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Meifang Quan
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Yunjun Sun
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Ziquan Yu
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Shengbiao Hu
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
| | - Liqiu Xia
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha, China
- * E-mail: (XZD); (LQX)
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Xiao X, He H, Ding X, Yang Q, Liu X, Liu S, Rang J, Wang T, Zuo M, Xia L. Purification and cloning of lectin that induce cell apoptosis from Allium chinense. Phytomedicine 2015; 22:238-244. [PMID: 25765828 DOI: 10.1016/j.phymed.2014.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 10/20/2014] [Accepted: 12/14/2014] [Indexed: 06/04/2023]
Abstract
A 8.7 kDa lectin with high agglutin activity was isolated by affinity chromatography and cloned from Allium chinense in this study. For the MTT assay, approximately 60 µg/ml A. chinense lectin (ACL) inhibited 50% of the human hepatoma Hep-3B cells grown after 48 h. In addition, no antiproliferative effect was observed on normal human umbilical vein endothelial cells (HUVEC) even at 100 µg/ml concentration. After treatments with ACL on Hep-3B cells, morphologic changes in the nucleus and cytoskeleton were observed under laser scanning confocal microscopy with 4',6-diamidino-2-phenylindole and tubulin Alexa Fluor 488 staining; whereas, the mitochondrial membrane potential was observed through Mito Tracker Red CMXRos staining. The results showed that ACL led to cell morphology and structure change (e.g., round cell shrinkage). Moreover, ACL resulted in significant change in the shape of the nucleus, damaged the cytoskeleton when tubulin was degraded, and reduced the mitochondrial transmembrane potential. By contrast, no changes were observed on HUVEC cells under the same treatment conditions. DNA fragmentation analysis was used to detect DNA damage. Western blot showed that ACL upregulated caspase-3 and Bax expression during apoptosis and cloned the structural gene of ACL with an open reading frame of 456 bp encoding 151 amino acid residues. The results showed that ACL is a potential anticancer drug.
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Affiliation(s)
- Xiuqing Xiao
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Hao He
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Xuezhi Ding
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China.
| | - Qi Yang
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Xuemei Liu
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Shuang Liu
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Jie Rang
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Ting Wang
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Mingxing Zuo
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China
| | - Liqiu Xia
- College of Life Science, Hunan Normal University, Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key Laboratory Breeding Base of Microbial Molecular Biology, Changsha 410081, China.
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Yang Q, Tang S, Rang J, Zuo M, Ding X, Sun Y, Feng P, Xia L. Detection of toxin proteins from Bacillus thuringiensis strain 4.0718 by strategy of 2D-LC-MS/MS. Curr Microbiol 2014; 70:457-63. [PMID: 25477065 DOI: 10.1007/s00284-014-0747-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 10/29/2014] [Indexed: 11/25/2022]
Abstract
Bacillus thuringiensis is a kind of insecticidal microorganism which can produce a variety of toxin proteins, it is particularly important to find an effective strategy to identify novel toxin proteins rapidly and comprehensively with the discovery of the wild-type strains. Multi-dimensional high-performance liquid chromatography combined with mass spectrometry has become one of the main methods to detect and identify toxin proteins and proteome of B. thuringiensis. In this study, protein samples from B. thuringiensis strain 4.0718 were analyzed on the basis of two-dimensional liquid chromatography-tandem mass spectrometry (2D-LC-MS/MS), and tryptic peptides of whole cell from the late sporulation phase were eluted at different concentration gradients of ammonium chloride and followed by secondary mass spectrum identification. 831 and 894 proteins were identified from two biological replicates, respectively, while 1,770 and 1,859 peptides were detected correspondingly. Among the identified proteins and peptides, 606 proteins and 1,259 peptides were detected in both replicates, which mean that 1,119 proteins and 2,370 peptides were unique to the proteome of this strain. A total of 15 toxins have been identified successfully, and seven of them were firstly discovered in B. thuringiensis strain 4.0718 that were Crystal protein (A1E259), pesticidal protein (U5KS09), Cry2Af1 (A4GVF0), Cry2Ad (Q9RM89), Cry1 (K4HMB5), Cry1Bc (Q45774), and Cry1Ga (Q45746). The proteomic strategy employed in the present study has provided quick and exhaustive identification of toxins produced by B. thuringiensis.
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Affiliation(s)
- Qi Yang
- Hunan Provincial Key Laboratory of Microbial Molecular Biology-State Key laboratory Breeding Base of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha, 410081, China,
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Zhu Y, Zuo M, Liang Y, Jiang M, Zhang J, Scheller HV, Tan M, Zhang A. MAP65-1a positively regulates H2O2 amplification and enhances brassinosteroid-induced antioxidant defence in maize. J Exp Bot 2013; 64:3787-802. [PMID: 23956414 PMCID: PMC3745737 DOI: 10.1093/jxb/ert215] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Brassinosteroid (BR)-induced antioxidant defence has been shown to enhance stress tolerance. In this study, the role of the maize 65 kDa microtubule-associated protein (MAP65), ZmMAP65-1a, in BR-induced antioxidant defence was investigated. Treatment with BR increased the expression of ZmMAP65-1a in maize (Zea mays) leaves and mesophyll protoplasts. Transient expression and RNA interference silencing of ZmMAP65-1a in mesophyll protoplasts further revealed that ZmMAP65-1a is required for the BR-induced increase in expression and activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX). Both exogenous and BR-induced endogenous H2O2 increased the expression of ZmMAP65-1a. Conversely, transient expression of ZmMAP65-1a in maize mesophyll protoplasts enhanced BR-induced H2O2 accumulation, while transient silencing of ZmMAP65-1a blocked the BR-induced expression of NADPH oxidase genes and inhibited BR-induced H2O2 accumulation. Inhibiting the activity and gene expression of ZmMPK5 significantly prevented the BR-induced expression of ZmMAP65-1a. Likewise, transient expression of ZmMPK5 enhanced BR-induced activities of the antioxidant defence enzymes SOD and APX in a ZmMAP65- 1a-dependent manner. ZmMPK5 directly interacted with ZmMAP65-1a in vivo and phosphorylated ZmMAP65-1a in vitro. These results suggest that BR-induced antioxidant defence in maize operates through the interaction of ZmMPK5 with ZmMAP65-1a. Furthermore, ZmMAP65-1a functions in H2O2 self-propagation via regulation of the expression of NADPH oxidase genes in BR signalling.
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Affiliation(s)
- Yuan Zhu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Mingxing Zuo
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yali Liang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jianhua Zhang
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, PR China
| | - Henrik Vibe Scheller
- Department of Plant and Microbial Biology, University of California Berkeley, CA 94720, USA
| | - Mingpu Tan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
- * To whom correspondence should be addressed.
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Liu Y, Zuo M, Liao S, Zhang Y, Au K, De Rama R, Shuto C, Chen P, Siu C, Tse H. Catheter-based renal denervation improves cardiac function in a porcine model of ischemic heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Zhang CJ, Chu HJ, Chen GX, Shi DW, Zuo M, Wang J, Lu CG, Wang P, Chen L. Photosynthetic and biochemical activities in flag leaves of a newly developed superhigh-yield hybrid rice (Oryza sativa) and its parents during the reproductive stage. J Plant Res 2007; 120:209-17. [PMID: 17077941 DOI: 10.1007/s10265-006-0038-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Accepted: 08/16/2006] [Indexed: 05/08/2023]
Abstract
Responses of net photosynthetic rates to intercellular CO(2) concentration (P (n)/C (i) curves) and photochemical characteristics were investigated in flag leaves of newly developed superhigh-yield hybrid rice (Oryza sativa L.) LiangYouPeiJiu (LYPJ) and its maternal PeiAi64S (PA64S) and paternal WuMang9311 (WM9311) lines grown in the field during the reproductive stage. The results showed that photosynthetic functions, such as the electron transport activities of photosystems and photophosphorylation, assessed in vivo from P (n)/C (i) curves under field conditions declined more or earlier than those obtained in vitro. The degradation of polypeptides of thylakoid membranes was slower than those for P (Ca=360) (light-saturated net photosynthetic rate measured at 360 mumol mol(-1)) and CE (carboxylation efficiency, obtained from the initial slope of the P (n)/C (i) curve). The initial inhibition of the PSII electron transport and oxygen-evolving activity induced by senescence occurred before the degradation of the oxygen-evolving complex. In comparison, LYPJ had intermediate photosynthetic functions in the early stage of leaf development, but greater photochemical activities in the mid and late stages. WM9311 showed a similar pattern of changes but lower values, and PA64S had higher values in the early stage but showed a faster rate of senescence than LYPJ. These findings implied that the hybrid LYPJ demonstrated intermediate photosynthetic activities between its parents in the early stage of leaf development, whereas it had higher photosynthetic activities than its parents in the mid and late stages, which may be responsible for its high yield.
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Affiliation(s)
- C-J Zhang
- Key Lab of Biodiversity and Biotechnology of Jiangsu Province, College of Life Sciences, Nanjing Normal University, Nanjing, PR China
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Zuo M, Nishio H, Lee MJ, Maejima K, Mimura S, Sumino K. The C677T mutation in the methylene tetrahydrofolate reductase gene increases serum uric acid in elderly men. J Hum Genet 2000; 45:257-62. [PMID: 10944859 DOI: 10.1007/s100380070037] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A common mutation, C677T, in the methylene tetrahydrofolate reductase gene (MTHFR) reduces the activity of MTHFR and increases total homocysteine levels in plasma. Increased homocysteine levels are reportedly associated with high serum uric acid levels. The relationship between the MTHFR mutation and uric acid metabolism remains unclear, however. To investigate whether the C677T MTHFR mutation is a risk factor for hyperuricemia, we performed MTHFR genotyping and clinical laboratory determinations, including serum uric acid, in 271 elderly Japanese men (age range, 40-79 years; mean, 52.6 years). The mean uric acid levels for the C/C, C/T, and T/T genotypes were 5.67, 6.00, and 6.39 mg/dl, respectively (P = 0.012). The T/T genotype was more frequent in subjects with high uric acid levels than in those with low uric acid levels (P = 0.038). These findings suggest that the C677T MTHFR mutation contributed to higher uric acid levels in subjects enrolled in this study. In conclusion, the mutation of the MTHFR gene may be a risk factor for hyperuricemia in elderly men.
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Affiliation(s)
- M Zuo
- Department of Public Health, Kobe University School of Medicine, Japan
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Guo X, Cong B, Gu Z, Zuo M, Zhang G, Yao Y, Peng Y, Wang J, You H. Study on DNA polymorphism at D1S8 locus in Hebei Han population. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2000; 17:192-5. [PMID: 10837523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVE To study the polymorphism at D1S8 locus and to provide basic information for the construction of DNA fingerprint database and the application in forensic medicine. METHODS Minisatellite variant repeat-polymerase chain reaction (MVR-PCR) and polyacrylamide gradient gel electrophoresis followed by silver staining were used to detect the variant repeat sequences at D1S8 locus of 240 unrelated individuals in Hebei Han population, and digital codes were obtained. RESULTS Each individual obtained about 30 digital codes, in which none of two unrelated individuals had the same code. The probability of identity of 30 digital codes was 3.55x10(-11). The percentages of three repeat units, a-type, t-type and o-type were 54.77%, 42.54% and 2.69% respectively. The heterozygosity (H) was 0.9837. The excluding probability of paternity(EPP) and polymorphism information content(PIC) were 0.9669 and 0.9833 respectively. CONCLUSION Because of its high polymorphic nature, D1S8 locus is a valuable marker for forensic identification and paternity testing.
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Affiliation(s)
- X Guo
- Department of Forensic Medicine, Hebei Medical University, Shijiazhuang, Hebei, 050017 P. R. China.
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Zuo M, Lee MJ, Kim MH, Wu Y, Ayaki H, Nishio H, Sumino K. C677T mutation of the methylenetetrahydrofolate reductase gene among the Korean infants in Seoul city. Kobe J Med Sci 1999; 45:271-9. [PMID: 10985160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The missense mutation, C677T (Ala--->Val), in the methylenetetrahydrofolate reductase (MTHFR) gene, is related to hyperhomocysteinemia and is regarded as a risk factor for coronary artery disease and neural tube defects. The prevalence of this mutation was reported to differ among various ethnic groups, but there are few reports concerning Asian populations. We have investigated the frequencies of C677T mutation in 124 Korean infants (residents in Seoul city, Korea) and 115 Japanese adults (residents in Kobe city, Japan), and compared them with the reported data from other ethnic groups. The frequencies of the three genotypes in Koreans were as follows: C/C (wild homozygosity) 0.27, C/T (heterozygosity) 0.66, T/T (mutated homozygosity) 0.07, while those in Japanese were as follows: C/C 0.44, C/T 0.40, T/T 0.16. There was a marked difference in the genotype frequencies between the two populations (chi-square = 16.67, P = 0.0002), even though they are closely related in genetic background. The high C/T genotype frequency led to significant deviation from Hardy-Weinberg equilibrium (chi-square = 17.35, P = 0.00003). Deviation from Hardy-Weinberg equilibrium has not been found in any other ethnic groups. The high frequency of C/T genotype may offer Koreans a selective advantage.
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Affiliation(s)
- M Zuo
- Department of Public Health, Kobe University School of Medicine
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Cheng M, Chaiken M, Zuo M, Miller H. Nucleus taenia of the amygdala of birds: anatomical and functional studies in ring doves (Streptopelia risoria) and European starlings (Sturnus vulgaris). Brain Behav Evol 1999; 53:243-70. [PMID: 10473902 DOI: 10.1159/000006597] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nucleus taenia (Tn) in birds is a discrete component of a loosely defined archistriatal structure, the posterior and medial archistriatum. By virtue of its hypothalamic projections, the posterior and medial archistriatum is thought to be an avian homolog of the amygdala in mammals. A recent fluorogold (FG) study of avian hippocampus revealed backfilled labels in nucleus Tn, suggesting that this nucleus may indeed be the homolog of mammalian amygdala. In the present study, we sought to characterize nucleus Tn in terms of its connections and function. We used the anterograde tracers Phaseolus vulgaris leucoagglutinin (PHAL) and biotinylated dextran amine (BDA) to map the efferent projections of Tn. The retrograde tracers FG and BDA were used to corroborate the efferent projections and to explore the pattern of afferent inputs to Tn. Finally, we explored the role of Tn in social behavior by observing behavioral changes associated with electrolytic lesions to Tn. The subjects of our studies were ring doves and European starlings, representing two avian orders. When a deposit of anterograde tracer was centered in Tn, it revealed projections to the hypothalamus, following the course of the hypothalamic-occipitomesencephalic tract previously reported in pigeons. The projections were bilateral in ring doves and ipsilateral in starlings. The BDA injections in the archistratum intermedium, lateral to Tn, did not yield the same projectional pattern. Together with corroborative data from FG retrograde experiments, these findings suggest that Tn is probably the primary origin of the hypothalamic projection. A robust projection to the hyperstriatal region was present along the lateral wall of the lateral ventricle, continuing into the anteroventral pole of the ventricle. Highly arborized terminal fields were found all along this pathway, notably in the medial parolfactory lobe (corresponding to the basal ganglia) and along the dorsal roof of the rostral hyperstriatum ventrale just ventral to the laminal frontalis superior (in ring doves) and the lamina frontalis suprema (in starlings). Projections to the hippocampal complex were mostly restricted to the parahippocampus. The FG data suggest the presence of afferent projections from the ovoidais shell and nucleus subrotundus region, the hippocampal complex in both species, and high vocal nucleus in starlings. Behavioral effects of Tn lesions suggest that nucleus taenia is involved in the control of social behavior through its influence on the affective state. Nucleus taenia thus exhibits many of the structural and functional features of the amygdaloid complex in mammals - that is, subcortical sensory inputs, hippocampal complex connections, and a functional role in adaptive patterns of social behavior.
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Affiliation(s)
- M Cheng
- Department of Psychology, Biopsychology Program, Newark, NJ 07102, USA
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Ling C, Zuo M, Alvarez-Buylla A, Cheng MF. Neurogenesis in juvenile and adult ring doves. J Comp Neurol 1997; 379:300-12. [PMID: 9050792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Studies in songbirds suggest that neurogenesis during the first few years of life is related to song learning. In this study, we examined whether postnatal neurogenesis occurs in a nonsongbird, the ring dove (Streptoplia risoria), and whether it persists to old age. Twenty-four hours after a single intramuscular injection of [3H]thymidine, labeled cells were present in the brains, particularly in the lateral wall of the lateral ventricle of juvenile (3-month and 8-month) and adult (1-year to 8-year) doves. Two months after multiple [3H]thymidine injections, there were fewer labeled cells in the ventricular zone (VZ), but many labeled cells with neuronal morphology in the parenchyma of the forebrain; labeled cells were confirmed as neurons by using neuron-specific markers, microtubule-associated protein-2 (MAP-2) and anti-neuronal nucleus (NeuN). In general, new neurons were distributed in the forebrain without clustering in any particular nucleus. During the first year of life, however, neostriatum caudale and hyperstriatum, the regions known to be essential for proper integration of sensory cues and reproductive behavior, contained more new neurons than any other brain regions. These neuronal additions showed an age-related decline; the first reduction coincided with the dove's attainment of adult physical size (about 3 months old) and the second occurred when the dove would normally attain reproductive fitness (about 1 year old). A low level of forebrain neurogenesis persisted up to 8 years of age (the oldest animals studied). These observations suggest that neurogenesis in adulthood is widespread among birds but that the biological significance of adult neurogenesis in the ring dove remains to be determined.
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Affiliation(s)
- C Ling
- Department of Brain & Cognitive Science, Massachusetts Institute of Technology, Cambridge 02139, USA
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Cheng MF, Zuo M. Proposed pathways for vocal self-stimulation: met-enkephalinergic projections linking the midbrain vocal nucleus, auditory-responsive thalamic regions and neurosecretory hypothalamus. J Neurobiol 1994; 25:361-79. [PMID: 8077963 DOI: 10.1002/neu.480250403] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In this study, we have investigated the neuroanatomical pathways that may underlie the influence of a female bird's vocal behavior upon her own reproductive endocrine response. We traced the ascending efferent projections of the midbrain vocal control nucleus, the intercollicularis (ICo), using an anterograde tracer, PHAL, delivered by iontophoretic application. We found labelled terminal fields in the anterior regions of the hypothalamus that contained luteinizing hormone releasing hormone- (LHRH) immunoreactive neurons. We injected into the LHRH-rich anterior medial hypothalamus (AM) the retrograde tracer, fluoro-gold, to verify the results of PHAL anterograde tracing and examine whether retrogradely labelled neurons in the ICo can be stained with met-enkephalin antiserum by the immunohistochemical method. Of the retrogradely labelled neurons in the medial division of ICo (mICo), between 5% and 15% were found to be met-enkephalin-immunoreactive positive perikarya. Our data suggest that axonal projections into the anterior medial hypothalamus may arise in part from enkephalin-immunoreactive neurons in the medial ICo. The mICo neurons distributed along the medial border of the midbrain auditory nucleus give rise to projections into the posterior medial hypothalamus (PMH) via synapses within the shell region of thalamic auditory nucleus, ovoidalis (Ov). We conclude that in the ring dove, the medial division of the vocal control nucleus, by virtue of its connection with the auditory thalamus and neurosecretory hypothalamus, is in a position to exert influence on endocrine response partly through enkephalinergic systems. Implications of similar connections in other species are discussed.
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Affiliation(s)
- M F Cheng
- Institute of Animal Behavior, Rutgers University, Newark, New Jersey 07102
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Bernstein PL, Zuo M, Cheng MF. Social condition affects the courtship behavior of male ring doves with posterior medial hypothalamic lesions. Behav Neural Biol 1993; 59:120-5. [PMID: 8476379 DOI: 10.1016/0163-1047(93)90834-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Following bilateral lesions to the posterior medial hypothalamus (homologue of the mammalian ventromedial nucleus), adult male ring doves regain full courtship behavior and the ability to stimulate female egg-laying when housed continuously with females. Males with PMH lesions housed singly and only tested periodically with females continue to show deficits in courtship. These findings suggest that the social environment present in adulthood itself can directly influence recovery from brain lesions. They also demonstrate the importance of PMH in the mediation of male ring dove courtship behavior.
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Affiliation(s)
- P L Bernstein
- Institute of Animal Behavior, Rutgers University, Newark, New Jersey 07102
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Zuo M, Karras D, Hümpel M. Influence of protein binding on the metabolic clearance rate of synthetic progestins in the rat liver perfusion model. Arzneimittelforschung 1992; 42:1130-8. [PMID: 1445481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Levonorgestrel (LN), 3-Keto-desogestrel (KDG), norethisterone (NET), and gestodene (GST) were investigated in the recirculating rat liver perfusion model. Progestins were dissolved in buffered salt solution (MI), BSA containing (MII) or HSA and sex hormone binding globulin (SHBG) containing medium (MIII) at a concentration of about 60 ng/ml. Each 3-5 female rat livers were perfused with MI, MII, and MIII for 1 h. Perfusion medium, liver biopsies and total bile were analyzed for progestin levels by specific radioimmunoassays. Protein binding characteristics were determined in media and tissue. In all experiments bile (remaining liver) contained less than 1% (3%) of respective progestin dose demonstrating an almost complete biotransformation of all drugs by rat livers, irrespective of used medium. With MI, metabolic clearance rates (MCRs) and half-lives (t1/2) were not different for the four progestins. With MII, the actual progestin levels were generally higher than with MI, but half-lives were not changed. MCRs were close to the perfusion rate at the start of experiments but decreased to about 50%. MCRs of free and total drug levels were identical. Protein binding of 70-80% did not change with time. With MIII, the half-lives increased 1.5 fold (NET), 2.8 fold (KDG), 3.1 fold (GST) and 3.2 fold (LN) and MCRs accounted for 50-70% of perfusion rate at the beginning. The time courses of further MCR decreases were different for the various progestins and can be attributed to differences in specific binding of drugs to SHBG. Clearly, the presence of SHBG in MIII induced a shift of drug from liver tissue into the perfusion medium.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M Zuo
- Institute of Pharmacokinetics, Schering Aktiengesellschaft, Berlin/Bergkamen, Fed. Rep. of Germany
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Jiang TY, Zuo M, Vukovic L, Bederson B. Absolute cross sections for low-energy scattering of electrons by excited sodium. Phys Rev Lett 1992; 68:915-918. [PMID: 10046031 DOI: 10.1103/physrevlett.68.915] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Zuo M, Jiang TY, Vukovic L, Bederson B. Absolute elastic differential cross sections of electrons scattered by 3 (2)P3/2 sodium. Phys Rev A 1990; 41:2489-2499. [PMID: 9903381 DOI: 10.1103/physreva.41.2489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Vukovic L, Zuo M, Shen GF, Stumpf B, Bederson B. Scattering of electrons by alkali-halide molecules: LiBr and CsCl. Phys Rev A Gen Phys 1989; 40:133-149. [PMID: 9901877 DOI: 10.1103/physreva.40.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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