1
|
Liu Y, An Y, Xing G, Jin Z, Xi K, Huo Y, He R, Wang H, Ouyang X, Huang Y, Huang C, Han L, Zhao B. Effect of moxa smoke on sperm parameters and oxidative stress in rats with asthenozoospermia. Anat Rec (Hoboken) 2023; 306:3021-3032. [PMID: 35661433 DOI: 10.1002/ar.25002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 11/08/2022]
Abstract
Asthenozoospermia is a leading cause of male infertility, characterized by reduced sperm motility. In this study, we determined sperm motility and the activities of antioxidant enzymes and oxidation products in the testis of rats with ornidazole (ORN)-induced asthenozoospermia and further examined and compared the differential effects of moxa smoke (MS) and cigarette smoke (CS) on sperm motility and oxidative stress (OS) of asthenozoospermic rats. The smoke intervention was initiated 11 days after intragastric administration of ORN, followed by the examination of testis index, sperm parameters, OS-related gene levels, and testicular histopathology. Sperm motility and antioxidant enzyme activities, as well as oxidation products significantly decreased in ORN-induced rats compared with MS-treated rats (p < .05-.001). MS treatment restored the reduced sperm motility and activities of glutathione peroxidase, superoxide dismutase, and catalase, but increased the malondialdehyde and nitric oxide synthetase levels in ORN-induced rats (p < .05-.001). Also, the histopathological changes in the testis of ORN-induced rats were improved by MS treatment. The study highlighted that MS was an effective factor in moxibustion therapy, which notably improved the sperm motility of asthenozoospermic rats by inhibiting OS in the reproductive system.
Collapse
Affiliation(s)
- Yajie Liu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Yu An
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Guogang Xing
- Neuroscience Research Institute, Peking University, Beijing, China
- Department of Neurobiology, School of Basic Medical Sciences and Neuroscience Research Institute, Peking University, Beijing, China
| | - Zirun Jin
- Neuroscience Research Institute, Peking University, Beijing, China
- Department of Neurobiology, School of Basic Medical Sciences and Neuroscience Research Institute, Peking University, Beijing, China
| | - Ke Xi
- Neuroscience Research Institute, Peking University, Beijing, China
- Department of Neurobiology, School of Basic Medical Sciences and Neuroscience Research Institute, Peking University, Beijing, China
| | - Yongwei Huo
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
- Research Center of Reproductive Medicine, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Rui He
- School of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Hao Wang
- The Sixth Medical Center, General Hospital of People's Liberation Army, Beijing, China
| | - Xiali Ouyang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Yueping Huang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Chang Huang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Li Han
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Baixiao Zhao
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
2
|
Bestel A, Elmas B, Günkaya OS, Bestel M, Bahat PY. Could sestrin protein in serum be a new marker of oxidative stress in patients with polycystic ovary syndrome? Gynecol Endocrinol 2022; 38:1109-1113. [PMID: 36599370 DOI: 10.1080/09513590.2022.2163234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE PCOS (polycystic ovary syndrome) is one of the most common endocrinological disorders and it is the threshold of many systemic disorders. There are many studies in the literature on the mechanisms that cause increased oxidation in PCOS. Sestrin protein is known to regulate the oxidation. In this study, it is aimed to examine the changes in the level of sestrin protein in women with PCOS. METHODS A total of 60 women participated the study, 30 of whom were diagnosed with PCOS according to the Rotterdam criteria. Also, 30 women were included in the study as the control group. Demographic information, biochemical analysis results, and sestrin levels of the patients in each group were compared. RESULTS The median sestrin level was 6.2 ± 0.8 in the PCOS group and 3.38 ± 0.4 in the control group (p < 0.001). As a result of the evaluation made with ROC analysis, it is observed that serum sestrin levels may be meaningful in the diagnosis of polycystic ovary syndrome. The area under the curve (AUC) value for the 4.69 level was 99.4% (p < 0.001, 95% CI: 96.7% vs. 100%, sensitivity: 100%, specificity: 96.7%). CONCLUSIONS Sestrin protein is associated with oxidative stress. Sestrin protein can be used as an indicator of increased oxidative stress in PCOS.
Collapse
Affiliation(s)
- Aysegul Bestel
- Department of Obstetrics and Gynecology, University of Health Sciences Istanbul Kanuni Sultan Suleyman Training and Research Hospital Halkali, Istanbul, Turkey
| | - Burak Elmas
- Department of Obstetrics and Gynecology, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Osman Samet Günkaya
- Clinic of Obstetrics and Gynecology, Sehit Prof. Dr. Ilhan Varank Sancaktepe Training and Research Hospital, University of Health Sciences Turkey, Istanbul, Turkey
| | - Melih Bestel
- Department of Obstetrics and Gynecology, Univesity of Istanbul Esenyurt, Esencan Hospital, Istanbul, Turkey
| | - Pınar Yalçın Bahat
- Department of Obstetrics and Gynecology, University of Health Sciences Istanbul Kanuni Sultan Suleyman Training and Research Hospital Halkali, Istanbul, Turkey
| |
Collapse
|
3
|
Wang R, Miao C, Chen Y, Zhao Y, Yang L, Cheng W, Zhang Q. Antioxidant supplements relieve insulin resistance but do not improve lipid metabolism in women with polycystic ovary syndrome: a meta-analysis of randomized clinical trials. Gynecol Endocrinol 2022; 38:1047-1059. [PMID: 36437750 DOI: 10.1080/09513590.2022.2148648] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Indexed: 11/29/2022] Open
Abstract
Objective: The effect of antioxidant supplements on glucose metabolism and lipid profiles in polycystic ovary syndrome (PCOS) remains controversial. This systematic review and meta-analysis aimed to evaluate whether antioxidant supplements improve glucose metabolism and lipid profiles in women with PCOS to provide optimal nutritional supplement advice in clinical practice. Methods: The search was conducted across multiple medical databases from inception to January 1, 2022 and performed following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. A random effects model was used to calculate the overall effects. Results: Eighteen trials (1113 participants) were included. Antioxidant supplements significantly improved insulin resistance (95% CI, -0.62, -0.30; p < 0.00001; I2 =48%), fasting insulin (95% CI, -0.80, -0.44; p < 0.00001; I2 = 48%), and fasting plasma glucose (95% CI, -0.54, -0.21; p < 0.00001; I2 = 38%) in patients with PCOS. However, antioxidant supplements were found to not improve most indices of lipid profiles in PCOS except triglyceride. Conclusions: Antioxidant supplements are an effective intervention for relieving insulin resistance but do not significantly improve lipid metabolism in women with PCOS.
Collapse
Affiliation(s)
- Ruye Wang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenyun Miao
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Yun Chen
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Zhao
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Liuqing Yang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Wei Cheng
- Department of Orthopedics, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou,China
| | - Qin Zhang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| |
Collapse
|
4
|
Korkmaz H, Deveci CD, Alışık M, Korkmaz V, Kurdoğlu Z, Erel Ö, Üstün Y. How do thiol disulfide balance and copper-ceruloplasmin levels change in women using copper intrauterine devices? Gynecol Endocrinol 2022; 38:689-692. [PMID: 35758879 DOI: 10.1080/09513590.2022.2089650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
ObjectivesWe aimed to examine the change in plasma copper (Cu) level and copper transport proteins level before inserting Cu-IUD and after one menstrual cycle and to show the effect of this change on the thiol disulfide balance in women using copper-containing intrauterine device (Cu-IUD).MethodThirty-three reproductive women who admitted to the gynecology clinic and inserted Cu-IUD were examined in this study. Thiol-disulfide homeostasis, plasma Cu and ceruloplasmin levels and ceruloplasmin ferroxidase activity were measured using the blood samples collected just before inserting Cu-IUD and after one menstrual cycle.ResultsPlasma copper level (p = 0.006), ceruloplasmin (p < 0.001), Ceruloplasmin Ferroxidase (p = 0.005), thiol disulfide homeostasis parameters; native thiol (NT) (p = 0.004), and total thiol (p = 0.003) levels increased significantly.ConclusionAfter one menstrual cycle in women inserted intrauterine Cu-IUD for contraception, plasma levels of Cu, which is the oxidant molecule, increased significantly. Both plasma ceruloplasmin level and ceruloplasmin ferroxidase activity increased due to elevated Cu levels. This increased oxidant status in the acute period was balanced by the increase in the native thiol level.
Collapse
Affiliation(s)
- Hilal Korkmaz
- Department of Physiology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Canan Dura Deveci
- Department of Obstetrics and Gynecology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Murat Alışık
- Department of Medical Biochemistry, Bolu Abant İzzet Baysal University, Bolu, Turkey
| | - Vakkas Korkmaz
- Gynecologic Oncology Surgery Department, Health Sciences University Etlik Zubeyde Hanim Women's Health Teaching and Research Hospital, Ankara, Turkey
| | - Zehra Kurdoğlu
- Department of Obstetrics and Gynecology, Yıldırım Beyazıt University, Ankara, Turkey
| | - Özcan Erel
- Department of Medical Biochemistry, Yıldırım Beyazıt University, Ankara, Turkey
| | - Yusuf Üstün
- Department of Obstetrics and Gynecology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
5
|
Marques ES, Formato E, Liang W, Leonard E, Timme‐Laragy AR. Relationships between type 2 diabetes, cell dysfunction, and redox signaling: A meta-analysis of single-cell gene expression of human pancreatic α- and β-cells. J Diabetes 2022; 14:34-51. [PMID: 34725923 PMCID: PMC8746116 DOI: 10.1111/1753-0407.13236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/29/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a chronic disease characterized by insulin resistance and failure of β-cells to meet the metabolic demand for insulin. Recent advances in single-cell RNA sequencing (sc-RNA-Seq) have allowed for in-depth studies to further understand the underlying cellular mechanisms of T2DM. In β-cells, redox signaling is critical for insulin production. A meta-analysis of human pancreas islet sc-RNA-Seq data was conducted to evaluate how T2DM may modify the transcriptomes of α- and β-cells. METHODS Annotated sc-RNA-Seq data from six studies of human pancreatic islets from metabolically healthy and donors with T2DM were collected. α- and β-cells, subpopulations of proliferating α-cells, immature, and senescent β-cells were identified based on expression levels of key marker genes. Each dataset was analyzed individually before combining, using weighted comparisons. Pathways of significant genes and individual redox-related gene expression were then evaluated to further understand the role that redox signaling may play in T2DM-induced β-cell dysfunction. RESULTS α- and β-cells from T2DM donors modified genes involved in energy metabolism, immune response, autophagy, and cellular stress. α- and β-cells also had an increased nuclear factor erythroid 2-related factor 2 (NFE2L2)-mediated antioxidant response in T2DM donors. The proportion of immature and senescent β-cells increased in T2DM donors, and in immature and senescent β-cells, genes regulated by NFE2L2 were further upregulated. CONCLUSIONS These findings suggest that NFE2L2 plays a role in β-cell maturation and dysfunction. Redox singling maybe a key pathway for β-cell restoration and T2DM therapeutics.
Collapse
Affiliation(s)
- Emily Sara Marques
- Department of Environmental Health SciencesUniversity of Massachusetts AmherstAmherstMassachusettsUSA
| | - Emily Formato
- Molecular and Cellular Biology Graduate ProgramUniversity of Massachusetts AmherstAmherstMassachusettsUSA
| | - Wenle Liang
- Department of Environmental Health SciencesUniversity of Massachusetts AmherstAmherstMassachusettsUSA
| | - Emily Leonard
- Department of Environmental Health SciencesUniversity of Massachusetts AmherstAmherstMassachusettsUSA
| | - Alicia R. Timme‐Laragy
- Department of Environmental Health SciencesUniversity of Massachusetts AmherstAmherstMassachusettsUSA
| |
Collapse
|
6
|
董 合, 吴 洪, 唐 钰, 黄 银, 林 锐, 赵 军, 徐 晓. [AMPK regulates mitochondrial oxidative stress in C2C12 myotubes induced by electrical stimulations of different intensities]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 38:742-747. [PMID: 29997099 PMCID: PMC6765703 DOI: 10.3969/j.issn.1673-4254.2018.06.16] [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] [Received: 04/14/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To study effect of electrical stimulations of different intensities on mitochondrial oxidative stress in C2C12 myotubes and explore the molecular mechanisms. METHODS After 7 days of differentiation, C2C12 myotubes were subjected to electrical stimulations (15 V, 3Hz, 30 ms) for 60, 120, or 180 min, and the morphological changes of muscular tubes were observed under inverted microscope. The levels of MDA and SOD activity of the cells were detected, and flow cytometry was used to detect mitochondrial reactive oxygen species (ROS) and membrane potential. Western blotting was used to detect the expression of PGC1, AMPK-Ser485, AMPK-Thr172, and AMPK in the cells. RESULTS No significant changes occurred in the morphology of C2C12 myotubes in response to electrical stimulations. Electrical stimulation for 60 min resulted in significantly increased levels of MDA, AMPK-Ser485 and AMPK-Thr172 in the cells (P<0.05); simulations of the cells for 120 and 180 min caused significantly increased MDA, ROS, mitochondrial ROS, AMPK-Ser485 and PGC1 along with marked reduction of mitochondrial membrane potential (P<0.05). CONCLUSION Electrical stimulation significantly activates oxidative stress, and a longer stimulation time causes stronger mitochondrial oxidation. AMPK-Thr172 regulates oxidative stress induced by stimulations for a moderate time length, while AMPK-Ser485 and PGC1 function to modulate oxidative stress following prolonged stimulations.
Collapse
Affiliation(s)
- 合玲 董
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 洪渊 吴
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 钰 唐
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 银伟 黄
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 锐章 林
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 军 赵
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| | - 晓阳 徐
- 暨南大学体育学院,广东 广州 510632College of Sports Science, Jinan University, Guangzhou 510632, China
| |
Collapse
|
7
|
Abstract
OBJECTIVE To investigate the protective effect of exendin-4 against diabetic cardiomyopathy in mice and explore the underlying mechanism. METHODS C57BL/6J mice were randomly divided into normal control group with normal diet and diabetic group with high-fat diet for 4 weeks before streptozotocin injection. The successfully established diabetic mouse models were divided into diabetic group with exendin-4 treatment and diabetic control group for daily treatment with intraperitoneal injection of 1 nmol/kg exendin-4 and saline of equivalent volume for 8 weeks, respectively. The physiological parameters such as blood glucose and body weight were recorded. RT-PCR was used to examine the transcription levels of genes related with myocardial hypertrophy and fibrosis and the genes related with mitochondrial functions including PGC1α, NRF and CytoC. The expressions of oxidative stress markers and Sirt1/PGC1 proteins were measured using Western blotting. and HE staining was used to observe the myocardial structural changes in the mice. RESULTS Compared with the normal control mice, the mice in diabetic control group showed significantly increased blood glucose and blood lipid levels (P<0.001), which were obviously improved by Exendin-4 treatment. The expressions of ANP, BNP, TGFβ1, CytoC1 and NOX1 were significantly increased (P<0.05) while Sirt1, PGC1α, NRF and SOD1 expression were markedly decreased in the myocardial tissue of the diabetic mice (P<0.05). Exendin-4 treatment resulted in obviously reduced expressions of ANP, BNP, TGFβ1, CytoC1 and NOX1 (P<0.05) and increased expressions of Sirt1, PGC1α, NRF and SOD1 (P<0.05) in the diabetic mice. CONCLUSIONS Exendin-4 protects against myocardial injury in diabetic mice by improving mitochondrial function and inhibiting oxidative stress through the Sirt1/PGC1α signaling pathway.
Collapse
|
8
|
Yin LL, Ye ZZ, Tang LJ, Guo L, Huang WM. [Effect of rhubarb on neonatal rats with bronchopulmonary dysplasia induced by hyperoxia]. Zhongguo Dang Dai Er Ke Za Zhi 2018; 20:410-415. [PMID: 29764580 PMCID: PMC7389068 DOI: 10.7499/j.issn.1008-8830.2018.05.014] [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] [Received: 02/12/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To study the effect of rhubarb on neonatal rats with bronchopulmonary dysplasia (BPD) induced by hyperoxia. METHODS A total of 64 rats (postnatal day 4) were randomly divided into four groups: air control, rhubarb control, hyperoxia model, and hyperoxia+rhubarb (n=16 each). The rats in the hyperoxia model and hyperoxia+rhubarb groups were exposed to hyperoxia (60% O2) to establish a BPD model. The rats in the rhubarb control and hyperoxia+rhubarb groups were given rhubarb extract suspension (600 mg/kg) by gavage daily. The pathological changes of lung tissue were evaluated by hematoxylin-eosin staining on postnatal days 14 and 21. The content of malondialdehyde (MDA) and the activity of superoxide dismutase (SOD) were measured by spectrophotometry. The mRNA and protein expression levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) were determined by RT-PCR and Western blot respectively. RESULTS The hyperoxia model group showed reduced alveolar number, increased alveolar volume, and simplified alveolar structure, which worsened over the time of exposure to hyperoxia. These pathological changes were significantly reduced in the hyperoxia+rhubarb group. On postnatal days 14 and 21, compared with the air control and rhubarb control groups, the hyperoxia model group had significantly reduced radical alveolar count (RAC), significantly reduced activity of SOD in the lung tissue, and significantly increased content of MDA and mRNA and protein expression levels of TNF-α and IL-6 (P<0.05). Compared with the hyperoxia model group, the hyperoxia+rhubarb group had significantly increased RAC, significantly increased activity of SOD in the lung tissue, and significantly reduced content of MDA and mRNA and protein expression levels of TNF-α and IL-6 (P<0.05). CONCLUSIONS Rhubarb may play a protective role in rats with BPD induced by hyperoxia through inhibiting inflammatory response and oxidative stress.
Collapse
Affiliation(s)
- Ling-Ling Yin
- Department of Neonatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | | | | | | | | |
Collapse
|
9
|
Azarova I, Bushueva O, Konoplya A, Polonikov A. Glutathione S-transferase genes and the risk of type 2 diabetes mellitus: Role of sexual dimorphism, gene-gene and gene-smoking interactions in disease susceptibility. J Diabetes 2018; 10:398-407. [PMID: 29111615 DOI: 10.1111/1753-0407.12623] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 07/05/2017] [Revised: 10/25/2017] [Accepted: 10/30/2017] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Compromised defense against reactive oxygen species (ROS) is considered important in the pathogenesis of type 2 diabetes mellitus (T2DM); therefore, genes encoding antioxidant defense enzymes may contribute to disease susceptibility. This study investigated whether polymorphisms in genes encoding glutathione S-transferase M1 (GSTM1), T1 (GSTT1), and P1 (GSTP1) jointly contribute to the risk of T2DM. METHODS In all, 1120 unrelated Russian subjects (600 T2DM patients, 520 age- and sex-matched healthy subjects), were recruited to the study. Genotyping was performed by multiplex polymerase chain reaction (PCR; del/del polymorphisms of GSTM1 and GSTT1) and TaqMan-based PCR (polymorphisms I105V and A114V of GSTP1). Plasma ROS and glutathione levels in study subjects were analyzed by fluorometric and colorimetric assays, respectively. RESULTS Genotype del/del GSTT1 was significantly associated with the risk of T2DM (odds ratio [OR] 1.60, 95% confidence interval [CI] 1.17-2.21, P = 0.003). Gender-stratified analysis showed that the deletion genotypes of GSTM1 (OR 1.99, 95% CI 1.30-3.05; P = 0.0002, Q = 0.016) and GSTT1 (OR 2.23, 95% CI 1.22-4.09; P = 0.008, Q = 0.0216), as well as genotype 114A/V of GSTP1 (OR 2.85, 95% CI 1.44-5.62; P = 0.005, Q = 0.02) were associated with an increased risk of T2DM exclusively in males. Three genotype combinations (i.e. GSTM1+ × GSTT1+, GSTM1+ × GSTP1 114A/A and GSTT1+ × GSTP1 114A/A) showed significant associations with a decreased risk of T2DM in males. CONCLUSIONS This study demonstrates, for the first time, that genes encoding glutathione S-transferases jointly contribute to the risk of T2DM, and that their effects on disease susceptibility are gender specific.
Collapse
Affiliation(s)
- Iuliia Azarova
- Department of Biological Chemistry, Kursk State Medical University, Kursk, Russian Federation
- Laboratory of Biochemical Genetics and Metabolomics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, Kursk, Russian Federation
| | - Olga Bushueva
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, Kursk, Russian Federation
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, Kursk, Russian Federation
| | - Alexander Konoplya
- Department of Biological Chemistry, Kursk State Medical University, Kursk, Russian Federation
| | - Alexey Polonikov
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, Kursk, Russian Federation
- Laboratory of Statistical Genetics and Bioinformatics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, Kursk, Russian Federation
| |
Collapse
|
10
|
颜 文, 张 纯, 邢 通, 宫 雪, 杨 宇, 李 亦, 刘 玄, 阿依江·加马力丁, 郁 叶, 张 萌, 陈 莉. [Nicorandil improves cognitive dysfunction in mice with streptozotocin-induced diabetes]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 38:384-389. [PMID: 29735436 PMCID: PMC6765662 DOI: 10.3969/j.issn.1673-4254.2018.04.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Indexed: 10/07/2023]
Abstract
OBJECTIVE To observe the protective effects of potassium channel opener nicorandil against cognitive dysfunction in mice with streptozotocin (STZ)-induced diabetes. METHODS C57BL/6J mouse models of type 1 diabetes mellitus (T1DM) were established by intraperitoneal injection of STZ and received daily treatment with intragastric administration of nicorandil or saline (model group) for 4 consecutive weeks, with normal C57BL/6J mice serving as control. Fasting blood glucose level was recorded every week and Morris water maze was used to evaluate the cognitive behavior of the mice in the 4th week. At the end of the experiment, the mice were sacrificed to observe the ultrastructural changes in the hippocampus and pancreas under transmission electron microscopy; the contents of glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) in the hippocampus and SOD activity and MDA level in the brain tissue were determined. RESULTS Compared with the control group, the model group showed significantly increased fasting blood glucose (P<0.001), significantly prolonged escape latency (P<0.05) and increased swimming distance (P<0.01) with ultrastructural damage of pancreatic β cells and in the hippocampus; GIP and GLP-1 contents in the hippocampus (P<0.01) and SOD activity in the brain were significantly decreased (P<0.05) and MDA content was significantly increased in the model group (P<0.05). Compared with the model group, nicorandil treatment did not cause significant changes in fasting blood glucose, but significantly reduced the swimming distance (P<0.05); nicorandil did not improve the ultrastructural changes in pancreatic β cells but obviously improved the ultrastructures of hippocampal neurons and synapses. Nicorandil also significantly increased the contents of GIP and GLP-1 in the hippocampus (P<0.05), enhanced SOD activity (P<0.05) and decreased MDA level (P<0.01) in the brain tissue. CONCLUSION Nicorandil improves cognitive dysfunction in mice with STZ-induced diabetes by increasing GIP and GLP-1 contents in the hippocampus and promoting antioxidation to relieve hippocampal injury.
Collapse
Affiliation(s)
- 文慧 颜
- 西安交通大学医学部 基础医学院药理学系 陕西 西安 710061Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 纯茜 张
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 通 邢
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 雪 宫
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 宇轩 杨
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 亦诺 李
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 玄 刘
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 阿依江·加马力丁
- 西安交通大学医学部 临床医学系,陕西 西安 710061Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 叶 郁
- 西安交通大学医学部 基础医学院药理学系 陕西 西安 710061Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 萌 张
- 西安交通大学医学部 基础医学院药理学系 陕西 西安 710061Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - 莉娜 陈
- 西安交通大学医学部 基础医学院药理学系 陕西 西安 710061Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| |
Collapse
|
11
|
黄 昊, 汤 红, 陈 颖, 郑 秀, 胡 勇, 王 瑞, 黄 美. [Effect of intense pulsed light on Trichophyton rubrum growth in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:853-857. [PMID: 28669966 PMCID: PMC6744133 DOI: 10.3969/j.issn.1673-4254.2017.06.25] [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] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the inhibitory effect of 420 nm intense pulsed light on Trichophyton rubrum growth in vitro and explore the mechanism. METHODS The fungal conidia were divided into treatment group with intense pulse light irradiation and control group without irradiation. The surface areas of the fungal colonies were photographed before irradiation and on the 2nd and 3rd days after irradiation to observe the changes in fungal growth. The viability of the fungus in suspension was detected at 6 h after irradiation using MTT assay. The intracellular reactive oxygen species (ROS) level in the fungus was determined using DCFH-DA fluorescent probe, and the MDA content was detected using TBA method. RESULTS Intense pulse light (420 nm) irradiation caused obvious injuries in Trichophyton rubrum with the optimal effective light dose of 12 J/cm2 in 12 pulses. At 6 h after the irradiation, the fungus in suspension showed a 30% reduction of viability (P<0.05), and the fungal colonies showed obvious growth arrest without further expansion. Compared to the control group, the irradiated fungus showed significant increases in ROS level and MDA content (P<0.05). CONCLUSION Intense pulse light (420 nm) irradiation can induce oxidative stress in Trichophyton rubrum to lead to fungal injuries and death.
Collapse
Affiliation(s)
- 昊 黄
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 红峰 汤
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 颖 陈
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 秀芬 郑
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 勇 胡
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 瑞华 王
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| | - 美玲 黄
- />南方医科大学附属顺德第一人民医院皮肤科,广东 佛山 528300Department of Dermatology, Shunde First People's Hospital Affiliated to Southern Medical University, Foshan 528300, China
| |
Collapse
|
12
|
Zou C, Liu X, Liu R, Wang M, Sui M, Mu S, Li L, Ji L, Xie R. Effect of the oral iron chelator deferiprone in diabetic nephropathy rats. J Diabetes 2017; 9:332-340. [PMID: 27121697 DOI: 10.1111/1753-0407.12420] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 12/30/2015] [Revised: 04/11/2016] [Accepted: 04/20/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The aim of the present study was to investigate the effects of the iron chelator deferiprone in diabetic nephropathy (DN) rats and the mechanisms involved. METHODS Thirty-two male Wistar rats (180-220 g, 6 weeks old) were randomly divided into a control group, a DN group and two DN groups treated with either 50 or 100 mg/kg per day deferiprone. The DN group was established by feeding of a high-carbohydrate-fat diet and injection of 35 mg/kg streptozotocin into the vena caudalis. The duration of deferiprone treatment was 20 weeks. Histopathological changes were detected by hematoxylin-eosin and Masson staining, as well as transmission electron microscopy. Levels of nuclear factor (NF)-κB, monocyte chemotactic protein (MCP)-1, matrix metalloproteinase (MMP)-9, tissue-specific inhibitor of metalloproteinase (TIMP)-1, cyclo-oxygenase (COX)-2, and nitrotyrosine were determined in kidney tissues using reverse transcription-polymerase chain reaction (RT-PCR), western blotting, and immunohistochemistry. RESULTS Histopathological observations showed that deferiprone treatment alleviated inflammation infiltrates and collagenous fibrosis in DN rats. Results from RT-PCR and western blotting indicated that deferiprone inhibited the expression of NF-κB, MCP-1, COX-2, and nitrotyrosine, which were overexpressed in DN rats. Immunohistochemistry showed that the mechanism of deferiprone action may involve regulation of MMP-9 and TIMP-1. Decreased MMP-9 expression and increased TIMP-1 expression in DN rats were significantly promoted and inhibited by deferiprone, respectively. CONCLUSION Iron chelation by oral deferiprone has a renoprotective effect in DN rats by relieving oxidative stress, inflammation, and fibrosis, which is related to the cytokines NF-κB, MCP-1, MMP-9, TIMP-1, COX-2, and nitrotyrosine.
Collapse
Affiliation(s)
- Chunbo Zou
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaogang Liu
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ruichan Liu
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingao Wang
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Manshu Sui
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Suhong Mu
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Li Li
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Liqi Ji
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Rujuan Xie
- Department of Nephrology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
13
|
马 庆, 余 佩, 张 帆, 李 玉, 杨 曙, 莫 贤, 莫 凯, 丁 颖, 陈 斯. [Mechanism of heat shock protein 90 for regulating 26S proteasome in hyperthermia]. Nan Fang Yi Ke Da Xue Xue Bao 2016; 37:537-541. [PMID: 28446410 PMCID: PMC6744107 DOI: 10.3969/j.issn.1673-4254.2017.04.20] [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] [Received: 05/16/2016] [Indexed: 12/08/2022]
Abstract
OBJECTIVE To investigate the mechanism by which heat shock protein 90 (HSP90) regulates 26S proteasome in hyperthermia. METHODS Hyperthermic HepG2 cell models established by exposure of the cells to 42 degrees celsius; for 3, 6, 12, and 24 h were examined for production of reactive oxygen species (ROS) and cell proliferation, and the changes in Hsp90α and 26S proteasome were analyzed. RESULTS ROS production in the cells increased significantly after hyperthermia (F=28.958, P<0.001), and the cell proliferation was suppressed progressively as the heat exposure time extended (F=621.704, P<0.001). Hyperthermia up-regulated Hsp90α but decreased the expression level (F=164.174, P<0.001) and activity (F=133.043, P<0.001) of 26S proteasome. The cells transfected with a small interfering RNA targeting Hsp90α also showed significantly decreased expression of 26S proteasome (F=180.231, P<0.001). CONCLUSION The intracellular ROS production increases as the hyperthermia time extends. Heat stress and ROS together cause protein denature, leading to increased HSP90 consumption and further to HSP90 deficiency for maintaining 26S proteasome assembly and stability. The accumulation of denatured protein causes unfolded protein reaction in the cells to eventually result in cell death.
Collapse
Affiliation(s)
- 庆荣 马
- 广东药科大学附属第一医院胸外科,广东 广州 510080Department of Thoracic Surgery, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 佩芝 余
- 广东药科大学附属第一医院 检验科,广东 广州 510080Clinical Laboratory, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 帆 张
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 玉齐 李
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 曙 杨
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 贤毅 莫
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 凯岚 莫
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 颖 丁
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 斯泽 陈
- 广东药科大学附属第一医院肿瘤科,广东 广州 510080Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
- 陈斯泽,博士,副教授,副主任医师,E-mail:
| |
Collapse
|
14
|
孙 茫, 沈 炼, 刘 阳, 于 晴, 龙 春, 李上 莹, 涂 生. [Effect of propofol on apoptosis of PC12 cells under hypoxic condition and the mechanism]. Nan Fang Yi Ke Da Xue Xue Bao 2016; 37:216-220. [PMID: 28219866 PMCID: PMC6779674 DOI: 10.3969/j.issn.1673-4254.2017.02.12] [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] [Received: 10/18/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the mechanism by which propofol exposure causes PC12 cell apoptosis under hypoxic conditions. METHODS PC12 cells were exposed to room air, 35% oxygen, or 5% oxygen (hypoxia) for 24 h in the presence of either 10 µmol/L lipid emulsion or 10 µmol/L propofol. After the treatments, the cell apoptosis was measured by flow ceytometry, and the level of reactive oxygen species (ROS) and the activity of superoxide dismutase (SOD) were evaluated. RESULTS In room air, PC12 cells treated with propofol showed increased apoptosis rate and ROS production as compared with the cells treated with the lipid emulsion; propofol treatment of the cells exposed to 35% oxygen showed obvious enhancement of the apoptosis rate, ROS production and SOD activity. Under the hypoxic condition, propofol treatment even further increased the apoptosis rate, ROS production and SOD activity. Lipid emulsion caused no such changes in cells exposed to room air, 35% oxygen or 5% oxygen. CONCLUSION Under hypoxic conditions, propofol can cause apoptosis in PC12 cells by inducing oxidative stress injury.
Collapse
Affiliation(s)
- 茫 孙
- 重庆医科大学附属儿童医院麻醉科Department of Anesthesiology, Children’s Hospital Affiliated to Chongqing Medical University
| | - 炼桔 沈
- 儿科学重庆市重点实验室Chongqing Key Laboratory of Pediatrics
| | - 阳 刘
- 重庆医科大学附属儿童医院麻醉科Department of Anesthesiology, Children’s Hospital Affiliated to Chongqing Medical University
| | - 晴 于
- 重庆医科大学附属儿童医院麻醉科Department of Anesthesiology, Children’s Hospital Affiliated to Chongqing Medical University
| | - 春兰 龙
- 儿科学重庆市重点实验室Chongqing Key Laboratory of Pediatrics
| | - 莹莹 李上
- 重庆医科大学附属儿童医院麻醉科Department of Anesthesiology, Children’s Hospital Affiliated to Chongqing Medical University
| | - 生芬 涂
- 重庆医科大学附属儿童医院麻醉科Department of Anesthesiology, Children’s Hospital Affiliated to Chongqing Medical University
- 儿童发育重大疾病国家国际科技合作基地China International Science and Technology Cooperation Base of Child Development and Critical Disorders
- 儿科发育疾病研究教育部重点实验室, 重庆400014Ministry of Education Key Laboratory of Developmental Disorders in Children, Chongqing 400014, China
| |
Collapse
|
15
|
Yang X, Dong WB, Li QP, Kang L, Lei XP, Zhang LY, Lu YY, Zhai XS. [Resveratrol increases sirtuin 1 expression in peripheral blood mononuclear cells of premature infants and inhibits the oxidative stress induced by hyperoxia in vivo]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:72-77. [PMID: 26781417 PMCID: PMC7390098 DOI: 10.7499/j.issn.1008-8830.2016.01.015] [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] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 09/30/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To explore the effect of resveratrol on the levels of sirtuin 1 (SIRT1) and reactive oxygen species (ROS) in peripheral blood mononuclear cells (PBMCs) of premature infants exposed to hyperoxia. METHODS Peripheral blood and isolated PBMCs from premature infants (gestational age<32 weeks) without oxygen supplement were collected and were randomly assigned into four groups: control, air+resveratrol, hyperoxia, and hyperoxia+resveratrol. The PBMCs were cultured in vitro for 48 hours, then the ROS content in PBMCs was measured by laser scanning confocal microscopy. Malondialdehyde (MDA) content in the medium was measured by the whole spectrum spectrophotometer. SIRT1 positioning was assessed by immunofluorescence. SIRT1 expression levels in PBMCs were measured by Western bolt. RESULTS Compared with the control group, the level of SIRT1 in the air+resveratrol group increased significantly (P<0.05). The levels of ROS and MDA and the SIRT1 transposition rate in the hyperoxia group increased significantly, while the expression level of SIRT1 decreased significantly compared with the control group (P<0.05). The levels of ROS and MDA and the SIRT1 transposition rate decreased significantly (P<0.05), and the expression level of SIRT1 increased significantly in the hyperoxia+resveratrol group (P<0.05). CONCLUSIONS Resveratrol can increase SIRT1 expression in PBMCs and inhibit SIRT1 shuttle from nucleus to cytoplasm in order to increase the ability of antioxidative stress in premature infants exposed to hyperoxia, thereby reducing the oxidative stress injury in premature infants.
Collapse
Affiliation(s)
- Xi Yang
- Department of Neonatology, First Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 646000, China.
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Yang X, Dong WB, Li QP, Kang L, Lei XP, Zhang LY, Lu YY, Zhai XS. [Resveratrol increases sirtuin 1 expression in peripheral blood mononuclear cells of premature infants and inhibits the oxidative stress induced by hyperoxia in vivo]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:72-7. [PMID: 26781417 PMCID: PMC7390098] [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] [Received: 07/27/2015] [Accepted: 09/30/2015] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To explore the effect of resveratrol on the levels of sirtuin 1 (SIRT1) and reactive oxygen species (ROS) in peripheral blood mononuclear cells (PBMCs) of premature infants exposed to hyperoxia. METHODS Peripheral blood and isolated PBMCs from premature infants (gestational age<32 weeks) without oxygen supplement were collected and were randomly assigned into four groups: control, air+resveratrol, hyperoxia, and hyperoxia+resveratrol. The PBMCs were cultured in vitro for 48 hours, then the ROS content in PBMCs was measured by laser scanning confocal microscopy. Malondialdehyde (MDA) content in the medium was measured by the whole spectrum spectrophotometer. SIRT1 positioning was assessed by immunofluorescence. SIRT1 expression levels in PBMCs were measured by Western bolt. RESULTS Compared with the control group, the level of SIRT1 in the air+resveratrol group increased significantly (P<0.05). The levels of ROS and MDA and the SIRT1 transposition rate in the hyperoxia group increased significantly, while the expression level of SIRT1 decreased significantly compared with the control group (P<0.05). The levels of ROS and MDA and the SIRT1 transposition rate decreased significantly (P<0.05), and the expression level of SIRT1 increased significantly in the hyperoxia+resveratrol group (P<0.05). CONCLUSIONS Resveratrol can increase SIRT1 expression in PBMCs and inhibit SIRT1 shuttle from nucleus to cytoplasm in order to increase the ability of antioxidative stress in premature infants exposed to hyperoxia, thereby reducing the oxidative stress injury in premature infants.
Collapse
Affiliation(s)
- Xi Yang
- Department of Neonatology, First Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 646000, China.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Daonan S, Wei C, Yue J, Lei Z, Yafei W. [Effect of glutaredoxin on oxidative stress of umbilical vein endothelial cell exposed to Porphyromonas gingivalis lipo- polysaccharide]. Hua Xi Kou Qiang Yi Xue Za Zhi 2015; 33:613-616. [PMID: 27051955 PMCID: PMC7030377 DOI: 10.7518/hxkq.2015.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 06/30/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE This study measures the glutaredoxin (Grx) gene and protein expression in umbilical vein endothelial cells upon exposure to Porphyromonas gingivalis (P. gingivalis) lipopolysaccharide (LPS). The involvement of the Akt-signaling pathway is also determined. METHODS EA-hy926 cells were pretreated with 1,000 ng · mL⁻¹ P. gingivalis LPS for 4, 12, 18, and 24 h, and then real-time reverse transcription polymerase chain reaction was employed to detect Grx1 expression. The effect of Grx on Akt activity was investigated using Western blot for the control, LPS (1,000 ng · mL⁻¹ LPS), and carmus- tine (BCNU) groups (1,000 ng · mL⁻¹ LPS, and the EA-hy926 cells were pretreated with 25 μmol · ml⁻¹ BCNU for 30 min). RESULTS Gene expression of Grx1 significantly increased in LPS group compared with that in the control group. The Grx1 expression reached the peak level in 12 h, and the variation between the expression in 4 and 12 h was significant (P < 0.05). After 12 h, the protein levels of Grx and phosphorylated-Akt (p-Akt) significantly increased in the LPS group (P < 0.05), whereas the BCNU group showed a considerable decrease in both Grx and p-Akt expression levels (P < 0.05). Moreover, a slight difference was observed in the total Akt protein levels in the three groups (P > 0.05). CONCLUSION Grx expression increased upon exposure of EA-hy926 cells to the LPS. Akt activity could be inhibited by BCNU (a Grx inhibitor), which indicated that Akt might act as a downstream regulator of Grx.
Collapse
|