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Ren ZY, Gong HY, Xin D, Zhang L, Li S, Zhang X, Chen M, Pang XH. [Epidemiological characteristics and serum antibody detection of a COVID-19 aggregated outbreak in vaccinated population]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:728-731. [PMID: 37165819 DOI: 10.3760/cma.j.cn112150-20220627-00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
An epidemiological investigation was conducted on a cluster epidemic of COVID-19 in the vaccinated population in Beijing in 2022, and serum samples were collected from 21 infected cases and 61 close contacts (including 20 cases with positive nucleic acid in the isolation observation period). The results of antibody detection showed that the IgM antibody of two infected persons was positive, and the IgG antibody positive rates of patients who were converted, not converted to positive and infected persons were 36.84% (7/19), 63.41% (26/41) and 71.43% (15/21), respectively. About 98.78% of patients had been vaccinated with the SARS-CoV-2 inactivated vaccine. The positive rate of IgG antibody in patients immunized with three doses of vaccine was 86.00% (43/50), which was higher than that in patients with one or two doses [16.12% (5/31)]. The antibody level of M (Q1, Q3) in patients immunized with three doses was 4.255 (2.303, 7.0375), which was higher than that in patients with one or two doses [0.500 (0.500, 0.500)] (all P values<0.001). The antibody level of patients who were vaccinated less than three months [7.335 (1.909, 7.858)] was higher than that of patients vaccinated more than three months after the last vaccination [2.125 (0.500, 4.418)] (P=0.007). The positive rate and level of IgG antibody in patients who were converted to positive after three doses were 77.78% (7/9) and 4.207 (2.216, 7.099), respectively, which were higher than those in patients who were converted after one or two doses [0 and 0.500 (0.500, 0.500)] (all P values<0.05).
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Affiliation(s)
- Z Y Ren
- Beijing Center for Disease Control and Prevention, Institute of Infectious and Endemic Disease Control, Beijing 100013, China
| | - H Y Gong
- Department of Planned Immunization, Fangshan District Center for Disease Control and Prevention, Beijing 102401, China
| | - D Xin
- Department of Infectious Diseases and Endemic Diseases, Fangshan District Center for Disease Control and Prevention, Beijing 102401, China
| | - L Zhang
- Beijing Center for Disease Control and Prevention, Institute of Infectious and Endemic Disease Control, Beijing 100013, China
| | - S Li
- Beijing Center for Disease Control and Prevention, Institute of Infectious and Endemic Disease Control, Beijing 100013, China
| | - X Zhang
- Beijing Center for Disease Control and Prevention, Institute of Infectious and Endemic Disease Control, Beijing 100013, China
| | - M Chen
- Beijing Center for Disease Control and Prevention, Institute of Immunization, Beijing 100013, China
| | - X H Pang
- Beijing Center for Disease Control and Prevention, Institute of Infectious and Endemic Disease Control, Beijing 100013, China
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Gong HY, Wang ZY, Sui YZ, Zhao JJ, Jing YY, Wang M. Effects of dexmedetomidine combined with propofol on peri-anesthesia hemodynamics and postoperative sedation and analgesia in patients undergoing radical esophagectomy. J BIOL REG HOMEOS AG 2021; 34:2171-2175. [PMID: 33412837 DOI: 10.23812/20-415-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H Y Gong
- Department of Anesthesiology, Zhangqiu District Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Z Y Wang
- Department of Anesthesiology, People's Hospital of Rizhao, Rizhao, Shandong, China
| | - Y Z Sui
- Department of Thoracic Surgery, Qingdao Central hospital, Qingdao University, Qingdao, China
| | - J J Zhao
- Department of Surgery, The People's Hospital of Zhangqiu Area, Jinan, Shandong, China
| | - Y Y Jing
- Department of Obstetrics, The People's Hospital of Zhangqiu Area, Jinan, Shandong, China
| | - M Wang
- Department of Anesthesiology, Maternity and Child Health Care of Zaozhuang, Zaozhuang, Shandong, China
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Shi H, Zheng H, Yin YF, Hu QY, Teng JL, Sun Y, Liu HL, Cheng XB, Ye JN, Su YT, Wu XY, Zhou JF, Norman GL, Gong HY, Shi XM, Peng YB, Wang XF, Yang CD. Antiphosphatidylserine/prothrombin antibodies (aPS/PT) as potential diagnostic markers and risk predictors of venous thrombosis and obstetric complications in antiphospholipid syndrome. Clin Chem Lab Med 2018; 56:614-624. [PMID: 29166262 DOI: 10.1515/cclm-2017-0502] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [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: 06/06/2017] [Accepted: 09/18/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND The aim of the study was to determine the prevalence and clinical associations of antiphosphatidylserine/prothrombin antibodies (aPS/PT) with thrombosis and pregnancy loss in Chinese patients with antiphospholipid syndrome (APS) and seronegative APS (SNAPS). METHODS One hundred and eighty six Chinese patients with APS (67 primary, 119 secondary), 48 with SNAPS, 176 disease controls (79 systemic lupus erythematosus [SLE], 29 Sjogren's syndrome [SS], 30 ankylosing spondylitis [AS], 38 rheumatoid arthritis [RA]) and 90 healthy donors were examined. IgG and IgM aPS/PT, IgG/IgM/IgA anticardiolipin (aCL) and IgG/IgM/IgA anti-β2-glycoprotein I (anti-β2GPI) antibodies were tested by ELISA. RESULTS One hundred and sixty (86.0%) of APS patients were positive for at least one aPS/PT isotype. One hundred and thirty five (72.6%) were positive for IgG aPS/PT, 124/186 (66.7%) positive for IgM aPS/PT and 99 (53.2%) positive for both. Approximately half of the SNAPS patients were positive for IgG and/or IgM aPS/PT. Highly significant associations between IgG aPS/PT and venous thrombotic events (odds ratio [OR]=6.72) and IgG/IgM aPS/PT and pregnancy loss (OR=9.44) were found. Levels of IgM aPS/PT were significantly different in APS patients with thrombotic manifestations and those with fetal loss (p=0.014). The association between IgG/IgM aPS/PT and lupus anticoagulant (LAC) was highly significant (p<0.001). When both were positive, the OR for APS was 101.6. Notably, 91.95% (80/87) of LAC-positive specimens were positive for IgG and/or IgM aPS/PT, suggesting aPS/PT is an effective option when LAC testing is not available. CONCLUSIONS Anti-PS/PT antibody assays demonstrated high diagnostic performance for Chinese patients with APS, detected some APS patients negative for criteria markers and may serve as potential risk predictors for venous thrombosis and obstetric complications.
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Affiliation(s)
- Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hui Zheng
- Department of Rheumatology and Immunology, Affiliated Hospital of Taishan Medical University, Shandong, P.R. China
| | - Yu-Feng Yin
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Qiong-Yi Hu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jia-Lin Teng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yue Sun
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hong-Lei Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xiao-Bing Cheng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jun-Na Ye
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yu-Tong Su
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xin-Yao Wu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jin-Feng Zhou
- Werfen Medical Device Trading (Beijing) Co. Ltd., Beijing, P.R. China
| | | | - Hui-Yun Gong
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xin-Ming Shi
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yi-Bing Peng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xue-Feng Wang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai 200025, P.R. China, Phone: +86 21 54667770, Fax: +86 21 64333548
| | - Cheng-De Yang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Second Road, Huangpu District, Shanghai 200025, P.R. China, Phone: +86 21 64370045, Fax: +86 21 34186000
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Zhao YL, Wang HM, Shao BX, Chen W, Guo ZJ, Gong HY, Sang XH, Wang JJ, Ye WW. SSR-based association mapping of salt tolerance in cotton (Gossypium hirsutum L.). Genet Mol Res 2016; 15:gmr7370. [PMID: 27323090 DOI: 10.4238/gmr.15027370] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The identification of simple sequence repeat (SSR) markers associated with salt tolerance in cotton contributes to molecular assisted selection (MAS), which can improve the efficiency of traditional breeding. In this study, 134 samples of upland cotton cultivars were selected. The seedling emergence rates were tested under 0.3% NaCl stress. A total of 74 SSR markers were used to scan the genomes of these samples. To identify SSR markers associated with salt tolerance, an association analysis was performed between salt tolerance and SSR markers using TASSEL 2.1, based on the analysis of genetic structure using Structure 2.3.4. The results showed that the seedling emergence rates of 134 cultivars were significantly different, and 27 salt-sensitive and 10 salt-tolerant cultivars were identified. A total of 148 loci were found in 74 SSR markers involving 246 allelic variations, which ranged from 2 to 7 with an average of 3.32 per SSR marker. The gene diversity ranged from 0.0295 to 0.4959, with the average being 0.2897. The polymorphic information content ranged from0.0290 to 0.3729, with the average being 0.2381. This natural population was classified into two subgroups by Structure 2.3.4, containing 89 and 45 samples, respectively. Finally, eight SSR sites associated with salt tolerance ware found through an association analysis, with the rate of explanation ranging from 2.91 to 7.82% and an average of 4.32%. These results provide reference data for the use MAS for salt tolerance in cotton.
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Affiliation(s)
- Y L Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - H M Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - B X Shao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - W Chen
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - Z J Guo
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - H Y Gong
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - X H Sang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - J J Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - W W Ye
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
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Wang ZT, Gong HY, Zheng F, Liu DJ, Yue XQ. Propofol suppresses proliferation and invasion of gastric cancer cells via downregulation of microRNA-221 expression. Genet Mol Res 2015. [PMID: 26214494 DOI: 10.4238/2015.july.17.20] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Propofol is one of the extensively and commonly used intravenous anesthetic agents. The current study aimed to evaluate the effects of propofol on the behavior of human gastric cancer cells and the molecular mechanisms of this activity. The effects of propofol on SGC7901 and AGS cell proliferation, apoptosis, and invasion were detected by MTT assay, flow cytometric analysis, and matrigel invasion assay. Real-time polymerase chain reaction (PCR) was used to assess microRNA (miR)-221 expression. miR-221 mimics were transfected into SGC7901 and AGS cells to assess the role of miR- 221 in propofol-induced anti-tumor activity. Propofol significantly inhibited cell proliferation and invasion and promoted apoptosis of SGC7901 and AGS cells. Propofol also efficiently reduced miR-221 expression. Moreover, transfection of miR-221 mimics reversed the effects of propofol on the biological behavior of gastric cancer cells. Propofol can effectively inhibit proliferation and invasion and induce apoptosis of gastric cancer cells through, at least partly, downregulation of miR-221 expression.
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Affiliation(s)
- Z T Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Zhengzhou University, Jinshui District, Zhengzhou, China
| | - H Y Gong
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Xinxiang, Henan, China
| | - F Zheng
- Department of Medical Ultrasonics, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Xinxiang, Henan, China
| | - D J Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Zhengzhou University, Jinshui District, Zhengzhou, China
| | - X Q Yue
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Xinxiang, Henan, China
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Huang F, Lu MH, Gong HY, Xiong ZP. Changes in peripheral blood natural killer T cells in hepatitis B e antigen-positive chronic hepatitis B patients and efficacy prediction after pegylated interferon therapy. Genet Mol Res 2015; 14:4932-8. [PMID: 25966268 DOI: 10.4238/2015.may.11.26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We examined the expression of peripheral blood natural killer T (NKT) cells in hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) patients and predicted its efficacy after pegylated interferon α-2a (Peg-INFα-2a) therapy. Sixty-three cases of HbeAg-positive CHB inpatients and outpatients, treated in the Third Xiangya Hospital of Central South University from January to December 2010, were administrated Peg-INFα-2a 18 myriad international unit intramuscularly once per week for 48 weeks. The number of peripheral NKT cells, 5 quantitative indicators of hepatitis B, and hepatitis B virus DNA capacity were detected at each time point. Forty-eight weeks after Peg-INFα-2a treatment, 26 HBeAg-positive CHB patients exhibited significant effects, 21 cases exhibited effects, and 16 cases showed no effects. The ratio of peripheral blood NKT cells in T lymphocytes before and 4, 8, and 12 weeks after treatment in the significant effect group was significantly increased compared to the effect group and no effect group (P < 0.01); at the 48th week of treatment and 24 weeks after the drug was withdrawn, NKT cell expression in the significant effect group was significantly higher than that in the effect group (t = 32.0, P < 0.01; t = 27.6, P < 0.01, respectively). A total of 27 patients showed HBeAg seroconversion until the 24th week after drug withdrawal. During treatment with Peg-INFα-2a in HBeAg-positive CHB patients, expression of peripheral blood NKT cells could be used to predict efficacy.
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Affiliation(s)
- F Huang
- Department of Infection, Xiangya Hospital of Central-South University, Key Laboratory of Viral Hepatitis, Hunan Province, Changsha, China
| | - M H Lu
- Department of Infection, Xiangya Hospital of Central-South University, Key Laboratory of Viral Hepatitis, Hunan Province, Changsha, China
| | - H Y Gong
- Department of Infection, The Third Xiangya Hospital of Central-South University, Changsha, China
| | - Z P Xiong
- Department of Interventional Radiology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
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Huang F, Gong HY, Lu MH. Pulmonary sparganosis mansoni: a case report. Trop Biomed 2012; 29:220-223. [PMID: 22735843] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Pulmonary sparganosis mansoni is uncommon in general clinical practice, but prevalent in endemic foci. Pulmonary sparganosis mansoni shares some clinical and radiologic similarities that mimic other common pulmonary pathogens. Delayed diagnosis of pulmonary sparganosis mansoni can pose a significant hazard to the patient. Indeed, a history of ingesting uncooked stone cracks in endemic areas is strongly suggestive of the possibility of pulmonary sparganosis mansoni. We report a case of a 43-year-old male peasant infested with pulmonary sparganosis mansoni who had been misdiagnosed with pulmonary tuberculosis.
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Affiliation(s)
- F Huang
- Department of Epidemiology, Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, People's Republic of China
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Huang WT, Gong HY, Lin CJ, Weng CF, Chen MH, Wu JL. Hepatocyte nuclear factors-1alpha, -1beta, and -3beta expressed in the gonad of tilapia (Oreochromis mossambicus). Biochem Biophys Res Commun 2001; 288:833-40. [PMID: 11688983 DOI: 10.1006/bbrc.2001.5856] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hepatocyte nuclear factors (HNFs) are upstream regulators of many liver-specific genes and are involved in many cellular functions in the body, but their existence, expression, and function in gonads are still poorly understood. Here we report on the first cloning of partial cDNAs of HNF-1alpha and -1beta and full HNF-3beta cDNA from a tilapia (Oreochromis mossambicus) liver cDNA library. The deduced amino acid sequence of tilapia HNF-3beta has a 90 to 96% identity with those of other fishes (dwarf gourami, medaka, and zebrafish), 74% with mammals (human, rat, and mouse), and 82% with Xenopus. RT-PCR detected IGF-I and -II and HNF-1alpha, -1beta, and -3beta in both liver and gonads and the identity of the PCR fragments was confirmed by PCR hybridization. Immunoprecipitation and Western blotting also detected all three HNF proteins in both liver and gonads. Expression of HNFs in the gonads of the tilapia suggests that multi-HNFs may form a cascade to regulate gonadal physiology in the bony fish.
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Affiliation(s)
- W T Huang
- Institute of Zoology, Academia Sinica, Nankang, Taipei, Taiwan, 11529, Republic of China
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Gong HY, Wang KQ, Tang SG, Zhang WJ. [Effects of prostaglandin E1 on hepatic function and hepatofibrosis in patients with chronic hepatitis B]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:445-7. [PMID: 12536496] [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: 02/28/2023]
Abstract
To search for an effective drug to cure patients with chronic hepatitis B. Twenty eight patients with chronic hepatitis B were treated with prostaglandin E1. The comprehensive indexes, including glutamic pyruric tranasaminase (GPT), serum total bilirubin (TBIL), total bile acid (TBA), hyaluronic acid (HA) and precollagen type III (PCIII), were examined before and after treatment. The levels of GPT, TBIL, TBA, HA, PCIII after 1 month of the treatment were significantly lower than those before the treatment (P < 0.05), there were significant differences between the treated and the controlled group patients with chronic hepatitis B (P < 0.05). The results suggest that the treatment with PGE1 might improve hepatic function, and resist the hepatic fibrosis in patients with chronic hepatitis B.
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Affiliation(s)
- H Y Gong
- Department of Infectious Diseases, Third Xiangya Hospital, Central South University, Changsha 410013, China
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Chen MC, Gong HY, Cheng CY, Wang JP, Hong JR, Wu JL. Cloning and characterization of zfBLP1, a Bcl-XL homologue from the zebrafish, Danio rerio. Biochim Biophys Acta 2001; 1519:127-33. [PMID: 11406282 DOI: 10.1016/s0167-4781(01)00209-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The importance of the Bcl-2 family proteins in normal vertebrate embryogenesis is being recognized; however, their regulatory mechanism is poorly understood. We report here the cloning and characterization of a novel zebrafish Bcl-2 family protein, zfBLP1. The zfBLP1 cDNA is 1942 nucleotides long, encoding a polypeptide of 238 amino acids. The primary sequence of zfBLP1 shares 50% identity to human Bcl-XL, and contains all four conserved BH domains of the Bcl-2 family proteins. Primary sequence analysis identified a consensus ER retention signal at the C-terminal end of zfBLP1. Northern blot analysis indicated that there were two major and two minor zfBLP1 mRNA species expressed during embryonic development. Among the two major mRNA species, the short one, approx. 3 kb in size, was expressed throughout embryonic development, while the long one, approx. 7 kb long, was not detectable until the gastrula stage. These results suggest that zfBLP1 is a novel Bcl-2 family protein under complicated regulations, and is likely to play an important role in zebrafish oogenesis and embryogenesis.
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Affiliation(s)
- M C Chen
- Laboratory of Marine Molecular Biology and Biotechnology, Institute of Zoology, Academia Sinica, Taipei, Taiwan
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Chen MC, Gong HY, Cheng CY, Wang JP, Hong JR, Wu JL. Cloning and characterization of a novel nuclear Bcl-2 family protein, zfMcl-1a, in zebrafish embryo. Biochem Biophys Res Commun 2000; 279:725-31. [PMID: 11118352 DOI: 10.1006/bbrc.2000.3977] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [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: 11/22/2022]
Abstract
The importance of the Bcl-2 family proteins in normal vertebrate embryogenesis is being recognized; however, their regulatory mechanism is poorly understood. To elucidate the embryonic roles of Bcl-2 family proteins, we cloned and characterized the first zebrafish Bcl-2 family protein, zfMcl-1a. Zebrafish Mcl-1a shows the highest homology to rat Mcl-1 and contains several conserved BH domains of the Bcl-2 family proteins. It also contains a nuclear localization signal (NLS). Using EGFP reporter analysis, we verified the nuclear localization of zfMcl-1a. Deletion of the NLS resulted in distribution of the fusion protein in the cytoplasm. Northern blot analysis indicated that zfMcl-1a mRNA is 1.5 kb and was expressed in oocytes and throughout embryonic development. Notably, the expression of zfMcl-1a transcript was significantly downregulated during gastrulation. These results suggest that zfMcl-1a is a novel nuclear Bcl-2 family protein and is likely to play an important role in zebrafish oogenesis and embryogenesis.
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Affiliation(s)
- M C Chen
- Laboratory of Marine Molecular Biology and Biotechnology, Institute of Zoology, Taipei, Taiwan, 115, Republic of China
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Gong HY, Wang KQ, Tang SG. [Effects of cordyceps sinensis on T lymphocyte subsets and hepatofibrosis in patients with chronic hepatitis B]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:248-50. [PMID: 12212155] [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: 02/26/2023]
Abstract
In order to find an effective drug to cure patients with chronic hepatitis B, cordyceps sinensis had been used to treat 25 patients with chronic hepatitis B. The comprehensive index, including T lymphocyte subsets (CD4, CD8), hyaluronic acid(HC) and precollagen type III(PC III), were observed before and after treatment. After 3 months of treatment, CD4 and CD4/CD8 ratio increased significantly(P < 0.05), while HA and PC III decreased significantly(P < 0.05) compared with the control. The results suggest that the beneficial effects might be obtained by using cordyceps sinensis to adjust the T lymphocyte subsets level and to treat hepatic fibrosis on patients with chronic hepatitis B.
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Affiliation(s)
- H Y Gong
- Department of Infectious Disease, Third Affiliated Hospital, Hunan Medical University, Changsha 410013
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Yan QW, Shen BG, Wei YN, Zhao TY, Yao YS, Yin B, Dong C, Wang FW, Cheng ZH, Zhang PL, Gong HY, Li YF. Superconductivity in the quaternary compounds LNi4B4C with L=Y, Ho, Er, and Tm. Phys Rev B Condens Matter 1995; 51:8395-8397. [PMID: 9977450 DOI: 10.1103/physrevb.51.8395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
Previous studies have suggested that hydrophobic moieties within the aqueous outflow channels might interact with certain aqueous components to retard outflow. While elastin is among the most hydrophobic proteins in the trabecular meshwork, it reacts poorly with conventional ultrastructural staining methods, so its potential role in regulating outflow could not be assessed. It was our goal to specifically localize elastin ultrastructurally using polyclonal antibodies against alpha elastin and its soluble precursor, tropoelastin. Human aorta served as a positive control. Preadsorption of the primary antibodies or their substitution with either normal rabbit serum or Tris buffer resulted in negligible labelling. With either antibody, only the electron-lucent elements in the center of elastic fibers of the trabecular meshwork were labelled, indicating that only these elements truly represent elastin. The pattern of elastin distribution within these fibers is most consistent with that found in tendons elsewhere in the body.
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Affiliation(s)
- H Y Gong
- Department of Anatomy, Boston University School of Medicine, MA 02118
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Abstract
The authors developed a new diathermy electrode that can be used with simultaneous indirect ophthalmoscopic control. The electrode uses the same source and handle as the conventional diathermy but can be used transconjunctivally or transsclerally through full thickness sclera. Chorioretinal scars were successfully induced in 30 rabbit eyes (with or without retinal detachment). Long-term follow-up revealed normal maturation of the scars, with firm adhesion of the retina to the choroid but no gross or histopathologic evidence of permanent scleral damage.
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Affiliation(s)
- N M Jabbour
- Department of Ophthalmology, West Virginia University, Morgantown 26506
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Gong HY. [Serous detachment of the retinal pigment epithelium. Long-term follow-up studies]. Zhonghua Yan Ke Za Zhi 1986; 22:339-42. [PMID: 3100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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