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Jiang MJ, Tang HN, Tang LL. [Research progress of the application of metagenomics technology in female reproductive tract diseases]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:172-178. [PMID: 36797573 DOI: 10.3760/cma.j.cn112150-20220905-00871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
In recent years, many studies have found that vaginal microbiota is closely related to female reproductive tract diseases. However, traditional microbial culture technology has the defects of long culture cycle and most microorganisms cannot be cultured. The development of metagenomics technique has broken the limitations of culture technology, and has been gradually applied to the study of vaginal microorganisms with the characteristics of high throughput, short time, identification of microbial population structure and gene function. It also provides technical support for elucidating the relationship between vaginal microbiota and female reproductive tract diseases. This article mainly introduces the metagenomics techniques and their applications in prevention, screening and diagnosis of common female reproductive tract diseases, and discusses their promising development and limitations to be overcome.
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Affiliation(s)
- M J Jiang
- Department of Laboratory Medicine, The 2rd Xiangya Hospital, Central South University, Changsha 410011, China
| | - H N Tang
- Department of Laboratory Medicine, The 2rd Xiangya Hospital, Central South University, Changsha 410011, China
| | - L L Tang
- Department of Laboratory Medicine, The 2rd Xiangya Hospital, Central South University, Changsha 410011, China
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Zhan TZ, Ma HH, Li Q, Tang LL, He SS, Tang ZL, Xia CM. [Interleukin-9 promotes the activation of hepatic stellate cells in mice infected with Schistosoma japonicum]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:514-517. [PMID: 36464253 DOI: 10.16250/j.32.1374.2021282] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To investigate the effects of interleukin-9 (IL-9) in the activation of hepatic stellate cells (HSCs) in mice infected with Schistosoma japonicum. METHODS Primary HSCs were isolated from mice 7 weeks post-infection with S. japonicum using the in situ liver perfusion and density gradient centrifugation, and cultured in vitro. HSCs were randomly assigned to the PBS control group and IL-9 stimulation group (stimulation with 20 ng/mL IL-9). HSCs were harvested 48 h and 72 h poststimulation, and the expression of α-smooth muscle actin (α-SMA), type I collagen (Col I) and type III collagen (Col III) was determined in HSCs using Western blotting. RESULTS Following stimulation with 20 ng/mL IL-9 for 48 h, the expression of α-SMA [(0.87 ± 0.02) vs. (0.69 ± 0.01); t = 17.39, P < 0.01], Col I [(0.74 ± 0.02) vs. (0.65 ± 0.01); t = 9.56, P < 0.01] and Col III [(0.94 ±0.04) vs. (0.75 ± 0.03); t = 6.15, P < 0.01] was significantly greater in HSCs in the IL-9 stimulation group than in the PBS control group. Following stimulation with 20 ng/mL IL-9 for 72 h, the expression of α-SMA was significantly greater in HSCs in the IL-9 stimulation group than in the PBS control group[(0.76 ± 0.02) vs. (0.58 ± 0.02); t = 12.52, P < 0.01]; however, there were no significant differences between the two groups in terms of Col I [(0.68 ± 0.02) vs. (0.66 ± 0.02); t = 1.15, P > 0.05] or Col III expression [(0.75 ± 0.01) vs. (0.72 ± 0.02); t = 2.22, P > 0.05]. CONCLUSIONS IL-9 promotes the activation of HSCs in mice infected with S. japonicum.
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Affiliation(s)
- T Z Zhan
- Department of Parasitology, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - H H Ma
- Department of Pathogenic Biology, Medical College, Soochow University, Suzhou, Jiangsu 215000, China
| | - Q Li
- Department of Cell Biology, Guangxi Medical University, China
| | - L L Tang
- Department of Parasitology, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - S S He
- Department of Parasitology, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Z L Tang
- Department of Cell Biology, Guangxi Medical University, China
| | - C M Xia
- Department of Pathogenic Biology, Medical College, Soochow University, Suzhou, Jiangsu 215000, China
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Feng XJ, Yang YY, Fang YY, Zhuang SQ, Dai YF, Tang LL, Tang HN. [Analysis of discordance between HbA1c and FPG criteria for dysglycemia screening in physical examination individuals]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:780-785. [PMID: 34139820 DOI: 10.3760/cma.j.cn112150-20200716-01020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The general data, blood routine, liver and kidney function, glucose metabolism and lipid metabolism of 11 922 participants who underwent physical examination at the Health Management Center of the Second Xiangya Hospital of Central South University from January 2019 to December 2019 were collected. Clinical characteristics and independent factors of patients with discordance between HbA1c and FPG were evaluated and analyzed. The prevalence of HbA1c-defined diabetes and prediabetes (respectively 8.13%, 34.79%) were significantly higher than that in FPG-defined diabetes and prediabetes (respectively 4.70%, 8.97%) (χ²=2 635.940;P<0.001). The prevalence of inconsistence between HbA1c and FPG was 35.65% and increased with increasing age. This inconsistence mainly occurred in population with HbA1c:5.7%-6.0% and FPG<5.6 mmol/L, followed by population with HbA1c:6.1%-6.4% and FPG<5.6 mmol/L. The risk factors of inconsistency included advanced age, overweight or obesity, hypoalbuminemia, dyslipidemia and hyperuricemia. Among these special participants, compared with participants under 45 years old, participants with over 45 years of age (OR=3.525, 95%CI: 3.216-3.863, P<0.001) were more likely to have inconsistence between HbA1c and FPG; and overweight participants (OR=1.474, 95%CI: 1.341-1.620, P<0.001) or obese participants (OR=1.856, 95%CI: 1.633-2.110, P<0.001) are prone to have the inconsistence than those with normal weight.
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Affiliation(s)
- X J Feng
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Y Y Yang
- Health Management Center,the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Y Y Fang
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - S Q Zhuang
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Y F Dai
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - L L Tang
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - H N Tang
- Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
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Bai ZM, Li XF, Yang Y, Yang YF, Lv DR, Tang LL. Propofol inhibited gastric cancer proliferation via the hsa-miR-328-3p/STAT3 pathway. Clin Transl Oncol 2021; 23:1866-1873. [PMID: 33772723 DOI: 10.1007/s12094-021-02595-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 01/25/2021] [Accepted: 03/12/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE The aim of the present study was to elucidate the functional role of hsa-miR-328-3p/STAT3 pathway in the effects of propofol on gastric cancer proliferation. METHODS Bioinformatics was used to analyze the molecular expression differences of hsa-miR-328-3p/STAT3 axis in stomach adenocarcinoma (n = 435) and normal samples (n = 41) from TCGA database. The expression of the above molecules in gastric cancer cells SGC-7901 and normal gastric mucosal cells GES-1 was verified via qPCR. The dual-luciferase assay was carried out to confirm the interaction between hsa-miR-328-3p and STAT3. Subsequently, the cell proliferation and the expression of the above molecules in SGC-7901 and GES-1 cells were evaluated after 10 μM propofol treatment. Finally, we analyzed whether propofol still inhibited the proliferation of gastric cancer by suppressing STAT3 pathway after hsa-miR-328-3p down-regulation. RESULTS Compared with normal samples, the expression of hsa-miR-328-3p was significantly down-regulated in stomach adenocarcinoma samples, while the expression of STAT3 and downstream target genes (MMP2, CCND1 and COX2) was up-regulated. The results were consistent with those in GES-1 and SGC-7901 cell lines. Meanwhile, we found that hsa-miR-328-3p can bind to the 3'-UTR of the potential target gene STAT3. Furthermore, propofol significantly inhibited the proliferation of gastric cancer cell line SGC-7901, where hsa-miR-328-3p was up-regulated and the expression of STAT3 and downstream proliferation-related target genes were down-regulated. However, the growth inhibition of propofol on SGC-7901 cell was significantly reversed after the inhibition of hsa-miR-328-3p. CONCLUSIONS To sum up, propofol suppressed the STAT3 pathway via up-regulating hsa-miR-328-3p to inhibit gastric cancer proliferation.
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Affiliation(s)
- Z M Bai
- Department of Anesthesiology, Wuwei People's Hospital, North Side of Xuanwu Street, Liangzhou District, Wuwei, 733000, China
| | - X F Li
- Department of Neonatology, Wuwei People's Hospital, Wuwei, 733000, China
| | - Y Yang
- Department of Chinese Medicine, Rheumatology and Immunology, Wuwei Liangzhou Hospital, Wuwei, 733000, China
| | - Y F Yang
- Department of Neurocardiology, Wuwei Second People's Hospital, Wuwei, 733000, China
| | - D R Lv
- Department of Anesthesiology, Wuwei People's Hospital, North Side of Xuanwu Street, Liangzhou District, Wuwei, 733000, China
| | - L L Tang
- Department of Anesthesiology, Wuwei People's Hospital, North Side of Xuanwu Street, Liangzhou District, Wuwei, 733000, China.
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He Q, Liu X, Zhong Y, Xu SS, Zhang ZM, Tang LL, Zhang LY, Du LZ. Arginine bioavailability and endothelin-1 system in the regulation of vascular function of umbilical vein endothelial cells from intrauterine growth restricted newborns. Nutr Metab Cardiovasc Dis 2018; 28:1285-1295. [PMID: 30392707 DOI: 10.1016/j.numecd.2018.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/06/2018] [Accepted: 09/13/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND AIMS Intrauterine growth restriction (IUGR) is a major risk factor for perinatal morbidity and mortality, leading to long-term adverse cardiovascular outcomes. The present study aimed to investigate the potential mechanisms in IUGR-associated vascular endothelial dysfunction. METHODS AND RESULTS Human umbilical vein endothelial cells (HUVECs) were derived from IUGR or normal newborns. We found that the proliferation of IUGR-derived HUVECs was accelerated compared to those from normal subjects. Gene profiles related to vascular function including vasomotion, oxidative stress, and angiogenesis were dysregulated in IUGR-HUVECs. Compared with HUVECs from normal newborns, nitric oxide (NO) production was reduced, with imbalance between endothelial nitric oxide synthase (eNOS) and arginase-2 (Arg-2) in IUGR. Meanwhile, intracellular asymmetric dimethylarginine (ADMA) level was elevated with diminished dimethylarginine dimethylaminohydrolase 1 (DDAH1) expression in IUGR-HUVECs. Furthermore, endothelin-1 (ET-1) and hypoxia-inducible factor 1α (HIF-1α) expression were increased, and endothelin receptor type-B (ETBR) was reduced in the IUGR group. IUGR-HUVECs exposed to hypoxia increased the ratio of ADMA to l-arginine, HIF-1α and protein arginine methyltransferase 1 (PRMT1) expression compared to controls. CONCLUSIONS The present study demonstrated that the reduction of NO bioavailability and release results from elevated Arg-2, accumulation of intracellular ADMA, and imbalance of ET-1 and ETBR, further leading to IUGR-associated vascular endothelial dysfunction. Our study provides novel evidence on the mechanism underlying fetal programming associated with IUGR, which will serve as potential therapeutic targets in the prevention of adverse cardiovascular consequences in adulthood.
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Affiliation(s)
- Q He
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - X Liu
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - Y Zhong
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - S S Xu
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - Z M Zhang
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - L L Tang
- Department of Neonatology, Shanghai Children's Medical Center, Shanghai, 200127, China
| | - L Y Zhang
- Fujian University of Medicine, NICU, Fuzhou Children's Hospital of Fujian Province, Fuzhou, 350005, Fujian Province, China
| | - L Z Du
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China.
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Kuang YH, Liu YJ, Tang LL, Wang SM, Yan GJ, Liao LQ. Plasma soluble cluster of differentiation 147 levels are increased in breast cancer patients and associated with lymph node metastasis and chemoresistance. Hong Kong Med J 2018; 24:252-260. [PMID: 29807951 DOI: 10.12809/hkmj176865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Cluster of differentiation 147 (CD147) contributes to breast cancer invasion, metastasis, and multidrug resistance. Recent studies have shown that peripheral soluble CD147 (sCD147) is increased in hepatocellular tumour and multiple myeloma patients and correlated with disease severity. The primary aim of our study was to assess the level, as well as the biological and clinical significance of sCD147 in breast cancer. METHODS We tested plasma sCD147 levels in 308 breast cancer patients by enzyme-linked immunosorbent assay between February 2014 and February 2017. A subset of 165 cases of benign breast diseases was included as a control group at the same period. We analysed the clinical significance of plasma sCD147 with relevance to clinicopathological factors of breast cancer patients. RESULTS Plasma sCD147 levels were significantly higher in patients with primary breast cancer than those with benign breast diseases (P=0.001), in patients with locally advanced breast cancer (T3-T4 tumour) than those in early breast cancer (T1-T2 tumour; P=0.001), in patients with lymph node metastasis than in those without (P<0.001), and in patients with high recurrence risk than those with medium recurrence risk (P<0.001). Plasma sCD147 levels were also significantly higher in the chemotherapy-resistant group than in the chemotherapy-sensitive group (P=0.040). Plasma sCD147 was an independent predictor for lymph node metastasis in breast cancer patients (P=0.001). CONCLUSION This is the first study to demonstrate that plasma sCD147 levels are elevated in breast cancer patients. Soluble CD147 is also associated with tumour size, lymph node metastasis, high recurrent risk, and chemoresistance. Our findings support that plasma sCD147 is an independent predictive factor for lymph node metastasis.
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Affiliation(s)
- Y H Kuang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Y J Liu
- Department of Breast Surgery, Hunan Clinical Meditech Research Center for Breast Cancer, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - L L Tang
- Department of Breast Surgery, Hunan Clinical Meditech Research Center for Breast Cancer, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - S M Wang
- Department of Breast Surgery, Hunan Clinical Meditech Research Center for Breast Cancer, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - G J Yan
- Department of Breast Surgery, Hunan Clinical Meditech Research Center for Breast Cancer, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - L Q Liao
- Department of Breast Surgery, Hunan Clinical Meditech Research Center for Breast Cancer, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wen LL, Zhu ZW, Yang C, Liu L, Zuo XB, Morris DL, Dou JF, Ye L, Cheng YY, Guo HM, Huang HQ, Lin Y, Zhu CH, Tang LL, Chen MY, Zhou Y, Ding YT, Liang B, Zhou FS, Gao JP, Tang XF, Zheng XD, Wang WJ, Yin XY, Tang HY, Sun LD, Yang S, Zhang XJ, Sheng YJ, Cui Y. Multiple variants in 5q31.1 are associated with systemic lupus erythematosus susceptibility and subphenotypes in the Han Chinese population. Br J Dermatol 2017; 177:801-808. [PMID: 28144936 DOI: 10.1111/bjd.15362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND A previous study provided evidence for a genetic association between PPP2CA on 5q31.1 and systemic lupus erythematosus (SLE) across multi-ancestral cohorts, but failed to find significant evidence for an association in the Han Chinese population. OBJECTIVES To explore the association between this locus and SLE using data from our previously published genome-wide association study (GWAS). METHODS Single-nucleotide polymorphisms (SNPs) rs7726414 and rs244689 (near TCF7 and PPP2CA in 5q31.1) were selected as candidate independent associations from a large-scale study in a Han Chinese population consisting of 1047 cases and 1205 controls. Subsequently, 3509 cases and 8246 controls were genotyped in two further replication studies. We then investigated the SNPs' associations with SLE subphenotypes and gene expression in peripheral blood mononuclear cells. RESULTS Highly significant associations with SLE in the Han Chinese population were detected for SNPs rs7726414 and rs244689 by combining the genotype data from our previous GWAS and two independent replication cohorts. Further conditional analyses indicated that these two SNPs contribute to disease susceptibility independently. A significant association with SLE, age at diagnosis < 20 years, was found for rs7726414 (P = 0·001). The expression levels of TCF7 and PPP2CA messenger RNA in patients with SLE were significantly decreased compared with those in healthy controls. CONCLUSIONS This study found evidence for multiple associations with SLE in 5q31.1 at genome-wide levels of significance for the first time in a Han Chinese population, in a combined genotype dataset. These findings suggest that variants in the 5q31.1 locus not only provide novel insights into the genetic architecture of SLE, but also contribute to the complex subphenotypes of SLE.
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Affiliation(s)
- L L Wen
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Z W Zhu
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - C Yang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - L Liu
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - X B Zuo
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - D L Morris
- Division of Genetics and Molecular Medicine, King's College London, U.K
| | - J F Dou
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - L Ye
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y Y Cheng
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - H M Guo
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - H Q Huang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y Lin
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China.,Department of Dermatology, the Fourth Affiliated Hospital, Anhui Medical University, Hefei, Anhui, 230032, China
| | - C H Zhu
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - L L Tang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - M Y Chen
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y Zhou
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y T Ding
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - B Liang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - F S Zhou
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - J P Gao
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - X F Tang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - X D Zheng
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - W J Wang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - X Y Yin
- Department of Genetics, and Renaissance Computing Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - H Y Tang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - L D Sun
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - S Yang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - X J Zhang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y J Sheng
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui, 230032, China
| | - Y Cui
- Department of Dermatology, China-Japan Friendship Hospital, East Street Cherry Park, Chaoyang District, Beijing, 100029, China
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Abstract
This study investigated whether inhibition of reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase attenuates cerebral infarction after transient focal ischaemia in rats. Focal ischaemia (1.5 h) was produced in male Sprague-Dawley rats (250 − 280 g) by middle cerebral artery occlusion. Some rats also received treatment with 50 mg/kg apocynin, a NADPH oxidase inhibitor, by intraperitoneal injection 30 min prior to reperfusion. Two hours after reperfusion, brains were harvested to measure NADPH oxidase activity and superoxide levels. After 24 h, the remaining brains were harvested to investigate infarct size. NADPH oxidase activity and superoxide level were all augmented 2 h after reperfusion compared with controls. Apocynin treatment significantly reduced NADPH oxidase activity and superoxide levels. Cerebral infarct size was significantly smaller in the apocynin-treated group compared with those undergoing ischaemia/reperfusion alone. These results indicate that inhibition of NADPH oxidase attenuates cerebral infarction after transient focal ischaemia in rats, suggesting that inhibition of NADPH oxidase may provide a therapeutic strategy for ischaemic stroke.
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MESH Headings
- Acetophenones/therapeutic use
- Animals
- Brain Chemistry
- Disease Models, Animal
- Enzyme Inhibitors/therapeutic use
- Infarction, Middle Cerebral Artery/etiology
- Infarction, Middle Cerebral Artery/metabolism
- Infarction, Middle Cerebral Artery/pathology
- Infarction, Middle Cerebral Artery/prevention & control
- Injections, Intraperitoneal
- Ischemic Attack, Transient/complications
- Ischemic Attack, Transient/metabolism
- Ischemic Attack, Transient/pathology
- Male
- NADPH Oxidases/antagonists & inhibitors
- NADPH Oxidases/metabolism
- Rats
- Rats, Sprague-Dawley
- Reperfusion Injury/etiology
- Reperfusion Injury/metabolism
- Reperfusion Injury/pathology
- Reperfusion Injury/prevention & control
- Superoxides/metabolism
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Affiliation(s)
- L L Tang
- Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, The People's Republic of China
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9
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Xu HF, Hao BT, Liu LJ, Tang LL, Liu BL. Calorimetric Studies on Thermal Properties of Nano-Cryoprotectant Solutions during Vitrification. Cryo Letters 2016; 37:406-410. [PMID: 28072427] [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: 06/06/2023]
Abstract
UNLABELLED BACKGROUND: Vitrification, the ice-free cryopreservation, develops rapidly and can become an ideal method for long-term preservation of cells and tissues. But up to now it is not practical for samples with large size because of the ultra-rapid cooling rate required. It has been reported that nanoparticles improve heat conductivity of solutions. MATERIALS AND METHODS In this study, Hydroxyapatite (HA) nanoparticles(20, 40 or 60nm)at 0.1 %, 0.5 % or 1 % (w/w) were added into glycerol solutions. Glass transition temperature and devitrification temperature of aqueous glycerol solutions with/without HA nanoparticles were measured by a differential scanning calorimeter(DSC) at a cooling rate of 150 degree C/min and a warming rate of 10 degree C/ min. RESULTS AND CONCLUSION Glass-transition temperatures and devitrification temperatures of glycerol aqueous solutions increased after the incorporation of HA nanoparticles. In the study using slow cooling rate of 10 degree C/min and warming rate of 5 degree C/min, the fraction of unfrozen water in the 50 % (w/w) glycerol solution increases steadily with the addition of HA nanoparticles. The findings have significant implications for biomaterial cryopreservation.
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Affiliation(s)
- H F Xu
- Institute of Biothermal Science, Shanghai University for Science and Technology, Shanghai, China
| | - B T Hao
- Institute of Biothermal Science, Shanghai University for Science and Technology, Shanghai, China
| | - L J Liu
- Institute of Biothermal Science, Shanghai University for Science and Technology, Shanghai, China
| | - L L Tang
- Institute of Biothermal Science, Shanghai University for Science and Technology, Shanghai, China
| | - B L Liu
- Institute of Biothermal Science, Shanghai University for Science and Technology, Shanghai, China.
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10
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Wang CM, Ye HD, Li YR, Hong QX, Tang LL, Zhou AN, Xu MQ, Duan SW. Lack of an association between matrix metalloproteinase polymorphisms and coronary heart disease in a Han Chinese population. Genet Mol Res 2015; 14:12254-61. [PMID: 26505374 DOI: 10.4238/2015.october.9.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
Coronary heart disease (CHD) has become a leading cause of human deaths worldwide. Recent studied showed that polymorphisms of the matrix metalloproteinase (MMP) genes played important roles in extracellular matrix remodeling and contribute to the pathogenesis of vascular diseases. Here, we investigated whether these MMP gene polymorphisms were associated with CHD in Han Chinese. Our case-control study was involved with 1509 unrelated individuals, including 777 CHD cases and 732 controls. We selected a total of five polymorphisms whose genotypes were determined using Sequenom iPLEX technology. Our results showed there were no significant associations between the five MMP gene polymorphisms and CHD risk at either genotype or allele levels (P > 0.05). Further subgroup analyses by sex were also unable to reveal any significant association (P > 0.05). In conclusion, no significant associations were found between the five MMP gene polymorphisms and the risk of CHD in Han Chinese.
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Affiliation(s)
- C M Wang
- Department of Cardiology, People's Hospital of Yinzhou, Ningbo, Zhejiang, China
| | - H D Ye
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Y R Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Q X Hong
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - L L Tang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - A N Zhou
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - M Q Xu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - S W Duan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
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11
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Ye HD, Li YR, Hong QX, Zhou AN, Zhao QL, Xu LM, Xu MQ, Xu XT, Tang LL, Dai DJ, Jiang DJ, Huang Y, Wang DW, Duan SW. Positive association between PPARD rs2016520 polymorphism and coronary heart disease in a Han Chinese population. Genet Mol Res 2015; 14:6350-9. [PMID: 26125839 DOI: 10.4238/2015.june.11.10] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PPARD encodes peroxisome proliferator-activated re-ceptor delta, which has been shown to play an important role in control-ling lipid metabolism and atherosclerosis. In this case-control study, we explored the relationship between PPARD rs2016520 polymorphism and coronary heart disease (CHD) in a Han Chinese population. A to-tal of 657 CHD cases and 640 controls were included in the associa-tion study. rs2016520 polymorphism genotyping was performed using the melting temperature-shift polymerase chain reaction method. The PPARD rs2016520-G allele reduced CHD risk by 17.9% (χ(2) = 5.061, P = 0.025, OR = 0.821, 95%CI = 0.692-0.975). Furthermore, a signifi-cant difference in CHD risk was observed for the PPARD rs2016520 polymorphism in the dominant model (AG + GG vs AA: χ(2) = 4.751, degrees of freedom (df) = 1, P = 0.029, OR = 0.784, 95%CI = 0.631- 0.976). Analysis by age suggested that the G-allele decreased CHD risk by 14.8% in ages greater than 65 years (χ(2) = 4.446, P = 0.035, OR = 0.852, 95%CI = 0.684-1.060). In contrast, meta-analysis of PPARD rs2016520 among 3732 cases and 5042 controls revealed no associa-tion between PPARD rs2016520 and CHD (P = 0.19). We found that the PPARD rs2016520-GG genotype decreased CHD risk in a Han Chinese population. Moreover, we found an association between serum high-density lipoprotein cholesterol level and PPARD rs2016520 in senior individuals aged ≥ 65 years. The meta-analysis revealed no association between PPARD rs2016520 and CHD, suggesting ethnic differences in the association between the PPARD locus and CHD.
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Affiliation(s)
- H D Ye
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Y R Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Q X Hong
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - A N Zhou
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Q L Zhao
- Yinzhou People's Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - L M Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - M Q Xu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - X T Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - L L Tang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - D J Dai
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - D J Jiang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Y Huang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - D W Wang
- Institute of Hypertension and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S W Duan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
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12
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Chen YP, Wang ZX, Chen L, Liu X, Tang LL, Mao YP, Li WF, Lin AH, Sun Y, Ma J. A Bayesian network meta-analysis comparing concurrent chemoradiotherapy followed by adjuvant chemotherapy, concurrent chemoradiotherapy alone and radiotherapy alone in patients with locoregionally advanced nasopharyngeal carcinoma. Ann Oncol 2015; 26:205-211. [PMID: 25355717 DOI: 10.1093/annonc/mdu507] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Given the lack of studies, whether the addition of adjuvant chemotherapy (AC) to concurrent chemoradiotherapy (CCRT) is superior to CCRT alone for locoregionally advanced nasopharyngeal carcinoma (NPC) remains unclear. The main objective of this Bayesian network meta-analysis was to determine the efficacy of CCRT + AC when compared with CCRT alone. PATIENTS AND METHODS We systematically searched databases and extracted data from randomized, controlled trials involving NPC patients randomly assigned to receive CCRT + AC, CCRT, or radiotherapy (RT). Overall survival (OS), locoregional recurrence-free survival (LRFS), and distant metastasis-free survival (DMFS) with hazard ratios (HRs) were investigated. A Bayesian network for different outcomes was established to incorporate all evidence. Multiple treatment comparisons based on the network integrated the efficacy of CCRT + AC, CCRT, and RT. RESULTS Eight studies involving 2144 patients were analyzed. In the network meta-analysis, CCRT + AC and CCRT were both significantly better than RT alone for all outcomes, except that no significant difference was found between CCRT and RT for LRFS. Though ranking probabilities showed that CCRT + AC was ranked superior to CCRT for OS, LRFS, and DMFS, no significant differences were found between CCRT+AC and CCRT for all outcomes [OS: HR = 0.86, 95% credible interval (CrI) 0.60-1.16; LRFS: HR = 0.72, 95% CrI 0.43-1.15; DMFS: HR = 0.86, 95% CrI 0.62-1.16]. CONCLUSIONS No significant improvement was found following CCRT + AC compared with CCRT alone. Whether the omission of additional AC can reduce toxic effects without adversely affecting survival in patients with locoregionally advanced NPC should be further explored, in addition to the precise patient status that would benefit from AC following CCRT.
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Affiliation(s)
- Y P Chen
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | | | - L Chen
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - X Liu
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - L L Tang
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - Y P Mao
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - W F Li
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - A H Lin
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Y Sun
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou
| | - J Ma
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou.
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13
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Zhang J, Liu XF, Liu Y, Xu LZ, Zhou LL, Tang LL, Zhuang J, Li TT, Guo WQ, Hu R, Qiu DS, Han DW. Environmental risk factors for women with polycystic ovary syndrome in china: a population-based case-control study. J BIOL REG HOMEOS AG 2014; 28:203-211. [PMID: 25001653] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common reproductive endocrinology disease with heterogeneous phenotype. Environmental factors are thought to be involved in the development of PCOS. The present study aimed to explore the potential environmental risk factors of PCOS. A cross-sectional study and stratified population-based case-control study were carried out. Pre-designed questionnaires were prepared, including questions about medication history, contact history of endocrine disruptors (EDs), environment and habituation. Fasting blood was collected for measurement of sex hormone, glucose and insulin. Matched logistic regression analysis was used to find the potential independent risk factor of PCOS. One thousand eight hundred fifty-four participants (aged 12-44 years) were analyzed in the cross-sectional investigation. One hundred sixty-nine PCOS patients and 338 matched controls were compared. PCOS patients were more frequent than controls in eating plastic-packaged food (p=0.001), contacting pesticide (p=0.021), eating fruit with pericarp (p=0.001), living beside a garbage heap (p=0.001), working at an acid plant (p=0.028), taking Chinese patent drugs (p=0.001), smoking (p=0.028) and drinking alcohol (p=0.001). However, PCOS patients were less likely to use kitchen ventilators (p=0.002), eat canned food (p=0.049), contact decorated materials, use skin care products (p=0.01) and cosmetics (p=0.027). No difference was found in taking antiepileptic drugs (p=0.93). Eating plastic-packaged food (p=0.001, OR=44.449), eating fruit with pericarp (p=0.03, OR=5.7) and drinking alcohol (p=0.001, OR=29.632) were found to be the independent risk factors for PCOS. The existence of an association between EDs and PCOS was proved. Plastic-packaged food, fruit with pericarp and drinking alcohol should be avoided as possible as we can. However, the causal relationships among these factors and PCOS should be proved by further research.
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Affiliation(s)
- J Zhang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - X F Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - Y Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - L Z Xu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - L L Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - L L Tang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - J Zhuang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - T T Li
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - W Q Guo
- Department of Ultrasound, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - R Hu
- Clinical Laboratory center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - D S Qiu
- Clinical Laboratory center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
| | - D W Han
- Clinical Laboratory center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, Peoples Republic of China
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14
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Han XZ, Gao S, Cheng YN, Sun YZ, Liu W, Tang LL, Ren DM. Protective effect of naringenin-7-O-glucoside against oxidative stress induced by doxorubicin in H9c2 cardiomyocytes. Biosci Trends 2012; 6:19-25. [PMID: 22426099 DOI: 10.5582/bst.2012.v6.1.19] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Doxorubicin (DOX) is one of the most effective chemotherapeutic agents, but cardiotoxicity limits its clinical use. Although the mechanisms are not entirely understood, reactive oxygen species (ROS) and cardiomyocyte apoptosis appear to be involved in DOX cardiotoxicity. Protection or alleviation of DOX cardiotoxicity can be achieved by administration of natural phenolic compounds via activating endogenous defense systems and antiapoptosis. Naringenin-7-O-glucoside (NARG), isolated from Dracocephalum rupestre Hance, could protect from cardiomyocyte apoptosis and induce endogenous antioxidant enzymes against DOX toxicity, but the effects on intracellular ROS generation and cell membrane stability were not demonstrated. In the present study, we investigated the effects of NARG on H9c2 cell morphology, viability, lactate dehydrogenase (LDH) and creatine kinase (CK) leakage, glutathine peroxidase (GSH-Px) activity, intracellular Ca2+ concentration, and ROS generation. Compared with DOX alone treatment group, the morphological injury of the cells in groups treated by DOX plus NARG was alleviated, cell viability was increased, the amount of released LDH and CK was significantly decreased, the activity of GSH-Px was increased, the content of intracellular Ca2+ and ROS generation was lowered remarkably. These results suggest that NARG could prevent cardiomyocytes from DOX-induced toxicity by their property of stabilizing the cell membrane and reducing ROS generation.
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Affiliation(s)
- X Z Han
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, Ji'nan, China.
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15
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Tang LL, Jin CZ, Wu LJ, Brockmeyer NH, Potthoff A, Wu NP. The Impact of Highly Active Antiretroviral Treatment on the Blood Profiles of Patients with Acquired Immune Deficiency Syndrome. J Int Med Res 2011; 39:1520-8. [PMID: 21986156 DOI: 10.1177/147323001103900442] [Citation(s) in RCA: 2] [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: 11/16/2022] Open
Abstract
This study retrospectively investigated the short- and long-term impact of highly active antiretroviral treatment (HAART) on the blood profiles of patients with acquired immune deficiency syndrome (AIDS), and their relationship with disease progression. CD4+ T-cell count was measured by flow cytometry, plasma viral load of human immunodeficiency virus (HIV) RNA was detected by reverse transcription—polymerase chain reaction, and blood profile was determined by an automated analyser. CD4+ T-cell count, total lymphocyte count (TLC) and haemoglobin concentration improved gradually in patients with AIDS after the initiation of HAART. Long-term effective HAART significantly increased CD4+ T-cell counts TLC and haemoglobin concentrations, and reduced viral load to undetectable levels. An increase in haemoglobin was positively correlated with an increase in CD4+ T-cells. These findings suggest that TLC is a valuable tool for determining the initiation of HAART, and that the haemoglobin concentration could be an additional indicator for long-term monitoring of HAART in resource-limited settings.
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Affiliation(s)
- LL Tang
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - CZ Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - LJ Wu
- Department of Nursing, School of Medicine, Taizhou College, Taizhou, China
| | - NH Brockmeyer
- Department of Dermatology, Allergy and STDs, Ruhr University Bochum, Bochum, Germany
| | - A Potthoff
- Department of Dermatology, Allergy and STDs, Ruhr University Bochum, Bochum, Germany
| | - NP Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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16
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He E, Xu XH, Guan H, Chen Y, Chen ZH, Pan ZL, Tang LL, Hu GZ, Li Y, Zhang M, Zhou J, Eriksson S, Fornander T, Skog S. Thymidine kinase 1 is a potential marker for prognosis and monitoring the response to treatment of patients with breast, lung, and esophageal cancer and non-Hodgkin's lymphoma. Nucleosides Nucleotides Nucleic Acids 2010; 29:352-8. [PMID: 20544519 DOI: 10.1080/15257771003738535] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Thymidine kinase 1 (TK1) is converting thymidine to thymidine monophosphate, and is related to DNA replication and cell proliferation. The use of the TK1 protein levels as a proliferation marker in malignancies is here summarized. TK1 protein in serum (STK1p) and TK1 expression in tissues were determined by a chemoluminescent dot blot assay and by immunohistochemistry staining, respectively. The expression of TK1 in tumor tissues correlated to pathological stages and clinical grades of carcinomas (ca) of esophagus, lung and in premalignancy of breast ductal ca. STK1p could monitor the out-come of tumor therapy by being correlated to remission [breast ca, non-Hodgkin's lymphoma], relapse [breast ca] and to survival [non-Hodgkin's lymphoma] of patients. In a health screening study of 12,641 persons, STK1p seemed to predict the risk of development of neoplasia related diseases at early stage.
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Affiliation(s)
- E He
- Sino-Swed Molecular Bio-Medicine Research Institute, Shenzhen, China
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17
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Tang LL, Sheng JF, Xu CH, Liu KZ. Clinical and Experimental Effectiveness of Astragali Compound in the Treatment of Chronic Viral Hepatitis B. J Int Med Res 2009; 37:662-7. [PMID: 19589248 DOI: 10.1177/147323000903700308] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Chinese herbs are widely used in the treatment of chronic viral hepatitis B. The effectiveness of 2 months' treatment with Astragali compound (AC), containing Radix Astragali and adjuvant components, was studied for the treatment of chronic viral hepatitis in 116 patients; 92 patients were given other drugs in regular clinical use for viral hepatitis (controls). The clinical efficacy of AC was significantly better in AC-treated patients than in controls. Negative seroconversions of hepatitis B virus (HBV) antigen e and HBV DNA were also significantly higher in AC-treated patients than in controls. Of eight duck viral hepatitis B models infected with duck hepatitis B virus (DHBV) and treated with AC, three showed negative seroconversion of DHBV DNA and serum DHBV DNA levels significantly decreased after AC administration compared with the controls; DHBV DNA was negative in biopsied liver tissue by in situ hybridization and immunohistochemistry in two ducks treated with AC. Pathological changes were milder in AC-treated ducks than in controls. These results indicate that AC may promote recovery from viral hepatitis and inhibit HBV replication.
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Affiliation(s)
- LL Tang
- Department of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - JF Sheng
- Department of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - CH Xu
- Department of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - KZ Liu
- Department of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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18
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Hua Y, Tang LL, Fewel ME, Keep RF, Schallert T, Muraszko KM, Hoff JT, Xi GH. Systemic use of argatroban reduces tumor mass, attenuates neurological deficits and prolongs survival time in rat glioma models. Acta Neurochir Suppl 2005; 95:403-6. [PMID: 16463890 DOI: 10.1007/3-211-32318-x_82] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Our previous studies showed that intracerebral infusion of argatroban, a specific thrombin inhibitor, reduces brain edema and neurological deficits in a C6 glioma model. The present study investigated whether systemic argatroban administration can reduce glioma mass and neurological deficits and extend survival time in C6 and F98 gliomas. Rat C6 or F98 glioma cells were infused into the right caudate of adult male Fischer 344 rats. Osmotic minipump loaded with argatroban (0.3 mg/hour) or vehicle was implanted into abdomen immediately after glioma implantation. Tumor mass was determined at day 9. Over the period of the experiment, the animals underwent behavioral testing (forelimb placing and forelimb use asymmetry). In addition, survival time was tested in the F98 glioma model. In C6 glioma, argatroban reduced glioma mass (p < 0.05) and neurological deficits (p < 0.05) at day 9. In F98 glioma, agratroban prolonged the survival time (p < 0.05) and reduced the body weight loss (84 +/- 15 gram vs. 99 +/- 2 gram in the vehicle group, P < 0.05). In conclusion, systemic use of argatroban reduced tumor mass and neurological deficits, and prolonged survival time. These results suggest that thrombin plays a key role in glioma growth and thrombin inhibition with argatroban may be a novel treatment for gliomas.
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Affiliation(s)
- Y Hua
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan 48109-0532, USA
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19
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Tang LL, Yu H. [High efficiency gene transfer into breast cancer cells by pseudotyped retroviral vector]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:48-50. [PMID: 12536615] [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
OBJECTIVE To investigate the efficiency of gene transfer mediated by pseudotyped retroviral vector in breast cancer, and to provide an useful vector for breast cancer gene therapy. METHODS We used a MuLV vector pseudotyped with the vesicular stomatitis virus glycoprotein(VSV-G) envelope to transduce breast cancer cells MDA-MB-435, To compare the transfer efficiency with MuLV. RESULTS The transfer efficiency is (92 +/- 12)% by using MuLV/VSV-G vector, (24 +/- 5)% by MuLV vector. The transfer efficiency of MuLV/VSV-G is 3.8 times that of MuLV vector. CONCLUSION Our results suggest that pseudotyped retroviral vector MuLV/VSV-G is a kind of high efficiency gene transfer vector in breast cancer cells.
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Affiliation(s)
- L L Tang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 41008
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20
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Tang LL, Zhou JS, Shen B. [Repair of bone defect with benign tumor by embryonic bone transplantation]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2001; 15:15-6. [PMID: 12563921] [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
OBJECTIVE To evaluate the clinical results of repair of bone defect by embryonic bone transplantation. METHODS From January 1994 to June 1999, 148 cases of bone defect were repaired by embryonic bone transplantation following alcohol treatment, there were 63 cases with bone cyst, 42 cases with fibrous dysplasia of bone, 26 cases with giant cell tumor of bone, and 17 cases with enchondroma among them. The maximal bone defect was 3.5 cm x 10.0 cm, while the minimal defect was 0.5 cm x 1.0 cm. RESULTS All of those bone defect with benign tumor were bone union used by embryonic bone transplantation after 3 months to 1 year of operation, the average healing course was 6.2 months, followed up 1 to 6 years, averaged 14 months, no tumor recurrence and no obvious local or system response were observed. CONCLUSION Embryonic bone can be used as a good repairing material of postoperative bone defect of benign tumors, the clinical results are satisfactory.
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Affiliation(s)
- L L Tang
- First Orthopedic Hospital of Chengdu, Chengdu Sichuan, P. R. China 610031
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Tang LL, Shen B, Yin Y. [Clinical observation of phenytoin in promoting fracture healing]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 1999; 13:343-5. [PMID: 12080833] [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: 02/25/2023]
Abstract
OBJECTIVE To observe the promoting effect of phenytoin on fracture healing. METHODS Fourty cases with close fractures of tibia and fibula were included and divided into two groups randomly: the experimental group was administrated with phenytoin and Chinese traditional drug-Jiegudan orally, while the control group was given Jiegudan only. Longitudinal percussion pain, clinical healing time of fracture, growth of calus in X-ray film were detected to evaluate the clinical result. RESULTS All the fractures were healed in 3 months. But the experimental group was superior to the control group in all indexes. CONCLUSION Administration of phenytoin orally can markedly promote fracture healing.
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Affiliation(s)
- L L Tang
- Chengdu First Orthopedic Hospital, Chengdu, Sichuan, P. R. China 610031
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Lee AS, Lim IH, Tang LL, Telenti A, Wong SY. Contribution of kasA analysis to detection of isoniazid-resistant Mycobacterium tuberculosis in Singapore. Antimicrob Agents Chemother 1999; 43:2087-9. [PMID: 10428945 PMCID: PMC89423 DOI: 10.1128/aac.43.8.2087] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.9] [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: 11/20/2022] Open
Abstract
Genotypic analysis of resistance to isoniazid (INH) in Mycobacterium tuberculosis is complex due to the various genes potentially involved. Mutations in ketoacyl acyl carrier protein synthase (encoded by kasA) were present in 16 of 160 (10%) INH-resistant isolates (R121K [n = 1], G269S [n = 3], G312S [n = 11], G387D [n = 1]). However, G312S was also present in 6 of 32 (19%) susceptible strains. kasA analysis contributed marginally to the performance of INH genotypic testing in Singapore. The significance of kasA polymorphisms in INH resistance should be carefully established.
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Affiliation(s)
- A S Lee
- Department of Clinical Research, Ministry of Health, Singapore General Hospital, Singapore 169608.
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Lee AS, Tang LL, Lim IH, Ling ML, Tay L, Wong SY. Lack of clinical significance for the common arginine-to-leucine substitution at codon 463 of the katG gene in isoniazid-resistant Mycobacterium tuberculosis in Singapore. J Infect Dis 1997; 176:1125-7. [PMID: 9333184 DOI: 10.1086/517320] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Tang LL, Wang LH, Zhang JH. [Effect of tetramethylpyrazine on expression of collagen genes in primary cultured smooth muscle cells in rats]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1995; 15:666-8. [PMID: 8732152] [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: 02/01/2023]
Abstract
For the purpose of studying the mechanism of tetramethylpyrazine (TMP) to prevent the restenosis after percutaneous transluminal coronary angioplasty (PTCA) and promote blood circulation to remove stasis. 40 micrograms of TMP was used to treat cultured vascular smooth muscle cells (VSMs). The total RNA was extracted from treated VSMC. The RNA Northern blot hybridization with procollagen genes alpha i-I and alpha 1-III probes was used to investigate its change in mRNA level. The results indicated that TMP could inhibit significantly the transcription of procollagen genes alpha 1-I and alpha 1-III.
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Affiliation(s)
- L L Tang
- First Affiliated Hospital, Beijing Medical University
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Tang LL, Wang LH, Zhu GY. [Influence of ligustrazine and heparin on growth and cleavage of primary cultural vascular smooth muscle]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1995; 15:38-9. [PMID: 7767067] [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: 01/27/2023]
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Yamamoto M, Hayashi Y, Tang LL, Mori R. Effects of combined use of acyclovir and antibody in athymic nude mice inoculated intracutaneously with herpes simplex virus. Antiviral Res 1985; 5:83-91. [PMID: 2990334 DOI: 10.1016/0166-3542(85)90034-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Antiviral effects of acyclovir (ACV) and antibody were studied in athymic nude mice inoculated intracutaneously in the midflank with herpes simplex virus type 1. Three hours after virus inoculation, treatment was initiated. In ACV-treated mice, the development of skin lesions was inhibited and the mean survival time was prolonged as compared with controls. Treatment with ACV markedly reduced the viral titers both at the inoculation site and in the neural tissues (dorsal root ganglia, spinal cord and brain). Transfer of antibody was also effective in controlling infection as described previously. The use of ACV plus antibody was more effective than the use of ACV alone and in 5 of 17 mice the disease was completely inhibited. Furthermore, in the mice that survived, latent infections in the ganglia were also prevented. These results indicate that treatment with ACV plus antibody is highly effective against herpes simplex virus infection in the immunocompromised host.
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Tang LL. [Nursing of patients with pine caterpillars' disease]. Zhonghua Hu Li Za Zhi 1983; 18:85-7. [PMID: 6556104] [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: 04/05/2023]
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Abstract
Red cells of the McLeod phenotype in the Kell blood group system have an acanthocytic morphology. The membrane protein composition analyzed on sodium dodecyl-sulfate-polyacrylamide gel electrophoresis, the ATP level and the activities of a large number of intracellular enzymes appear to be normal. Membranes prepared from McLeod red cells incubated with gamma AT[32P] and MgCl2 incorporated twice as much radioactivity into spectrin and also showed a slight elevation of phosphorylation in band 3 protein when compared to membranes from normal cells. Intact normal red cells incubated with carrier-free [32P] incorporated radioactivity into several proteins, with most incorporation in spectrin and band 3 protein. In comparison, McLeod cells incorporated three times more radioactivity into spectrin and band 3 protein but increased phosphorylation also occurred in other, but not all, membrane proteins. Intact McLeod red cells also showed increased phosphorylation of membrane phospholipids, but they incorporated [32P] into intracellular nucleotide phosphates in a normal manner.
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