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Zeng S, Wu Y, Zhou M, Bai H, Liu X, Fan P. Association between genetic polymorphisms of leptin receptor and preeclampsia in Chinese women. J Matern Fetal Neonatal Med 2023; 36:2207708. [PMID: 37150847 DOI: 10.1080/14767058.2023.2207708] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
OBJECTIVE Leptin signaling plays an important role in regulating metabolism and reproduction. In the present study, we investigated the relationship between polymorphisms of leptin receptor (LEPR) gene A223G and A668G and preeclampsia (PE) and evaluated influences of genotypes on clinical, metabolic, and oxidative stress indices in Chinese women. METHODS This is a case-control study including 322 patients with PE and 1295 healthy pregnant women. The two polymorphisms were genotyped by polymerase chain reaction-restriction fragments length polymorphism method. Clinical and biochemical parameters were analyzed. RESULTS The frequencies of the AA + AG genotypes (28.6% vs. 36.1%) and A allele (14.9% vs. 19.8%) of LEPR A223G polymorphism, and those of the AA + AG genotypes (17.7% vs. 24.6%) and A allele (9.0% vs. 12.9%) of LEPR A668G polymorphism were significantly lower in the PE group than those in the control group. The 223A and 668A alleles were protective factors against PE in the regression model, which included age and delivery body mass index as covariates (OR = 0.684, 95% CI: 0.506-0.926, p = .014; OR = 0.650, 95% CI: 0.456-0.927, p = .017, respectively). When the 668GG/223GG combined genotype served as the reference category, the 668A/223A combined allele had further enhanced the protective effect on PE (OR = 0.558, 95% CI: 0.374-0.833, p = .004). Patients possessing the LEPR 223A allele had higher total antioxidant capacity and lower oxidative stress index (p < .05), while those with the LEPR 668A allele had higher high-density lipoprotein cholesterol levels (p = .045) compared with those carrying the corresponding GG genotype. CONCLUSIONS The 223A and 668A alleles of LEPR polymorphisms are genetic protective factors for PE in Chinese women. The two alleles may exert a beneficial effect on oxidative stress and lipid metabolism in patients.
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Affiliation(s)
- Shuai Zeng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yujie Wu
- Laboratory of Genetic Disease and Perinatal Medicine, Laboratory of the Key Perinatal Disease, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Mi Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Huai Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Laboratory of the Key Perinatal Disease, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xinghui Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ping Fan
- Laboratory of Genetic Disease and Perinatal Medicine, Laboratory of the Key Perinatal Disease, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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Li Y, Zheng H, Yang J, Zhang B, Xing X, Zhang Z, Zhang Q. Association of genetic variants in Leptin, leptin receptor and adiponectin with hypertension risk and circulating Leptin/Adiponectin changes. Gene X 2023; 853:147080. [PMID: 36470480 DOI: 10.1016/j.gene.2022.147080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/14/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUNDS Hypertension is inheritable, and some candidate genes such as leptin and adiponectin have drawn special concerns. OBJECTIVES We performed a meta-analysis on the association of 7 genetic variants in genes encoding leptin, leptin receptor and adiponectin with hypertension risk and circulating leptin/adiponectin changes. METHODS Literature search, report selection and data extraction were performed by two authors independently. Effect sizes are expressed as odds ratio (OR) or standard mean difference (SMD) with 95% confidence interval (CI). RESULTS Total 32 reports (7432 cases with hypertension and 9218 controls) were meta-analyzed. Overall analyses indicated that rs7799039 (dominant model: OR = 1.67; 95 % CI: 1.03 to 2.71; P = 0.038) and (TTTC)n (allelic model: OR = 1.53; 95 % CI: 1.05 to 2.23; P = 0.028) were significantly associated with hypertension risk. Subgroup analyses indicated that hypertension type, race, diabetes, genotyping method and quality score might be potential causes for between-study heterogeneity. Besides rs2241766, no evidence of publication bias existed for the other variants. Carriers of rs7799039-AG genotype had significantly higher leptin concentrations than carriers of rs7799039-GG genotype (SMD = 1.98; 95 % CI: 0.07 to 3.89; P = 0.042). In Mendelian randomization analyses, an increment of leptin concentrations by 1 ng/mL was causally associated with a 25 % significantly increased risk of hypertension (95 % CI: 1.02 to 10+; P < 0.05). CONCLUSIONS Our findings indicated that leptin gene rs7799039 and (TTTC)n were potential hypertension-candidacy loci, and importantly high circulating leptin concentrations causally precipitated the development of hypertension.
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Affiliation(s)
- Yingxue Li
- Department of Internal Medicine, The Second Hospital of Tangshan, Tangshan, Hebei, China.
| | - Hongwei Zheng
- Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Jing Yang
- Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Boheng Zhang
- Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Xiaowei Xing
- Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Zhiyong Zhang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Qi Zhang
- Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei, China.
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El Fessikh M, Elkarhat Z, Flatters D, Camproux AC, Belghiti H, Guerinech H, Bakri Y, Dakka N, El Baghdadi J. Association study of leptin receptor polymorphisms in women with obesity and their impact on protein domains: a case-control study and in silico analyses. J Biomol Struct Dyn 2022:1-13. [DOI: 10.1080/07391102.2022.2109755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Meriem El Fessikh
- Genetics Unit, Military Hospital Mohammed V, Rabat, Morocco
- Laboratory of Human Pathologies Biology, and Genomic Center of Human Pathologies, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Pasteur Institute of Casablanca, Casablanca, Morocco
| | - Delphine Flatters
- Université Paris Cité, CNRS, INSERM, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Anne-Claude Camproux
- Université Paris Cité, CNRS, INSERM, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Hakim Belghiti
- Clinical Nutrition Unit, Hygiene and Collectivity Medicine Ward, Military Hospital Mohammed V, Rabat, Morocco
| | - Hassania Guerinech
- Clinical Nutrition Unit, Hygiene and Collectivity Medicine Ward, Military Hospital Mohammed V, Rabat, Morocco
| | - Youssef Bakri
- Laboratory of Human Pathologies Biology, and Genomic Center of Human Pathologies, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Nadia Dakka
- Laboratory of Human Pathologies Biology, and Genomic Center of Human Pathologies, Faculty of Sciences, Mohammed V University, Rabat, Morocco
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Relative Telomere Length in Peripheral Blood Cells and Hypertension Risk among Mine Workers: A Case-Control Study in Chinese Coal Miners. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5681096. [PMID: 33354567 PMCID: PMC7735841 DOI: 10.1155/2020/5681096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
Hypertension is a common chronic disease in middle-aged and elderly people and is an important risk factor for many cardiovascular diseases. Its pathogenesis remains unclear. Epidemiological studies have found that the loss of telomere length in peripheral blood cells can increase the risk of coronary heart disease, myocardial infarction, and other diseases. However, a correlation between loss of telomere length and hypertension has not been established. In this study, we aimed to explore the association between telomere length and the risk of essential hypertension (EH) in Chinese coal miners. A case-control study was performed with 215 EH patients and 222 healthy controls in a large coal mining group located in North China. Face-to-face interviews were conducted by trained staff with the necessary medical knowledge. Relative telomere length (RTL) was measured by a quantitative real-time PCR assay using DNA extracted from peripheral blood. In the control group, the age-adjusted RTL was statistically significantly lower in miners performing hard physical labour compared with nonphysical labour (P = 0.043). A significantly shorter age-adjusted RTL was found in the control group of participants who consumed alcohol regularly compared with those who do not consume alcohol (P = 0.024). Age-adjusted RTL was negatively correlated with body mass index (BMI) and alcohol consumption. Hypertension was also found to be significantly correlated with factors such as age, BMI, alcohol consumption, smoking, and tea consumption. Our results suggest that RTL is associated with hypertension in coal miners.
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Srinivasan G, Parida S, Pavithra S, Panigrahi M, Sahoo M, Singh TU, Madhu CL, Manickam K, Shyamkumar TS, Kumar D, Mishra SK. Leptin receptor stimulation in late pregnant mouse uterine tissue inhibits spontaneous contractions by increasing NO and cGMP. Cytokine 2020; 137:155341. [PMID: 33128919 DOI: 10.1016/j.cyto.2020.155341] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 09/28/2020] [Accepted: 10/07/2020] [Indexed: 12/21/2022]
Abstract
The adipokine, leptin exerts inhibitory effect on both spontaneous and oxytocin-induced contractions in myometrium. However, the mechanisms involved in leptin-induced effect are not clear. In the present study, we studied the altered characteristics of uterine contractions in the presence of leptin and the possible mechanisms of its effect in late pregnant (18.5 day) mouse uterus. We conducted functional, biochemical and molecular biology studies to demonstrate the mechanism of leptin-induced response. Leptin exerted an inhibitory response (Emax 40.5 ± 3.99%) on basal uterine contractions. The extent of inhibition was less than that obtained with known uterine relaxants, salbutamol (Emax103 ± 8.66%) and BRL-37344 (Emax 84.79 ± 8.12%). Leptin-induced uterine response was inhibited by leptin receptor antagonist SHLA and JAK-STAT pathway inhibitor, AG-490. The relaxant response was also subdued by NO-cGMP-PK-G pathway blockers L-NAME, 1400W, ODQ and KT-5823. Further, leptin enhanced the levels of NO and cGMP in uterine tissues. Also, SHLA, AG-490 and a combination of 1400 W and L-NAME prevented leptin-induced increase in NO. Similar effect was observed on cGMP levels in presence of leptin and SHLA. However, leptin did not influence CaCl2-induced response in potassium-depolarized tissues. We also detected leptin receptor protein in late pregnant mouse uterus located in endometrial luminal epithelium and myometrial layers. Real-time PCR studies revealed significantly higher expression of short forms of the receptor (ObRa and ObRc) in comparison to the long form (ObRb). In conclusion, the results of the present study suggest that leptin inhibits mouse uterine contraction by stimulating short forms of the leptin receptors and activating NO pathway in a JAK-STAT-dependent manner.
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Affiliation(s)
- G Srinivasan
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Subhashree Parida
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India.
| | - S Pavithra
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Manjit Panigrahi
- Division of Animal Genetics and Breeding, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Monalisa Sahoo
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Thakur Uttam Singh
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - C L Madhu
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Kesavan Manickam
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - T S Shyamkumar
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Dinesh Kumar
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Santosh K Mishra
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
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Mitochondrial DNA copy number in peripheral blood cell and hypertension risk among mining workers: a case–control study in Chinese coal miners. J Hum Hypertens 2017; 31:585-590. [DOI: 10.1038/jhh.2017.30] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 02/28/2017] [Accepted: 03/17/2017] [Indexed: 12/20/2022]
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Tang H, Zhang Z, Li Z, Lin J, Fang DZ. High-Carbohydrate/Low-Fat Diet-Induced Gender-Specific Serum Lipid Profile Changes Are Associated with LEPR Polymorphisms in Chinese Youth. ANNALS OF NUTRITION AND METABOLISM 2017; 70:1-8. [PMID: 28064282 DOI: 10.1159/000455165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 12/12/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS The study aimed to investigate the interactions of genetic variants in the leptin receptor (LEPR) gene with lipid profile changes following a high-carbohydrate/low-fat (HC/LF) diet in a Chinese Han population. METHODS Fifty-six healthy young subjects were given washout diets, followed by HC/LF diets consisting of 15% fat and 70% carbohydrate for 6 days. Serum lipid profiles and insulin levels before and after HC/LF diets were analyzed. RESULTS Statistically elevated high-density lipoprotein cholesterol (HDL-C), apolipoprotein A-1 (apoA-I), and insulin levels were only observed in the GG genotype of LEPR Lys109Arg but not in the A carriers after HC/LF diet. When gender was taken into account, significantly increased HDL-C, apoA-I, and insulin levels were found in women with the GG genotype. Moreover, lower low-density lipoprotein cholesterol (LDL-C) and higher insulin levels were only observed in subjects with the GG genotype of LEPR Gln223Arg, while higher HDL-C and apoA-I were only found in the A allele carriers. Additionally, the lower LDL-C and body mass index (BMI), and higher HDL-C and insulin levels were only observed in subjects with the GG genotype of LEPR Lys656Asn. CONCLUSIONS LEPR polymorphisms contribute to the heterogeneities in BMI, LDL-C, and HDL-C responsiveness that are induced by a HC/LF diet in healthy young Chinese adults.
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Affiliation(s)
- Hui Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Belin de Chantemèle EJ. Sex Differences in Leptin Control of Cardiovascular Function in Health and Metabolic Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1043:87-111. [DOI: 10.1007/978-3-319-70178-3_6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Yang J, Du H, Lv J, Zhang L. Association of rs1137101 polymorphism in LEPR and susceptibility to knee osteoarthritis in a Northwest Chinese Han population. BMC Musculoskelet Disord 2016; 17:311. [PMID: 27457563 PMCID: PMC4960800 DOI: 10.1186/s12891-016-1162-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/12/2016] [Indexed: 01/14/2023] Open
Abstract
Background Osteoarthritis (OA) is a complex arthritic condition in which the genetic factor plays a crucial role. A single nucleotide polymorphism (SNP), rs1137101 (Gln223Arg) of leptin receptor (LEPR) gene has been demonstrated to be associated with susceptibility to knee OA. However, this association in Chinese Han population has never been examined. The present study aimed to investigate whether Gln223Arg was related to knee OA susceptibility in a Northwest Chinese population with Han ethnicity. Methods Gln223Arg polymorphisms were genotyped in 587 patients with confirmed knee OA and in 628 age- and sex-matched healthy controls using polymerase chain reaction-restriction fragment length polymorphism analysis. Besides, LEPR genotypes were verified by direct DNA sequencing analysis on PCR products. Results The genotype and allele frequencies in LEPR SNP rs1137101 were significantly different between cases and control groups (chi-square = 6.52, P = 0.038 for genotype and chi-square = 5.06, P = 0.024 for allele frequencies; respectively). Rs1137101 was correlated with knee OA in the dominant genetic model (GG + GA versus AA) (P = 0.016) and a higher G allele frequency existed (P = 0.024) among all patients with knee OA and controls. On stratification analysis, the genotype GG and G allele were associated with susceptibility to knee OA in females, both young (≤65 years) and old groups (>65 years) and patients with mild knee OA. Conclusions Our finding suggested that the genetic variant of LEPR gene rs1137101 is independently related to knee OA susceptibility in Northwest Chinese population with Han ethnicity and may serve as a potential biomarker to determine risk of knee OA.
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Affiliation(s)
- Jianhui Yang
- Rehabilitation Center, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, No. 277, Yanta West Road, Xi'an, 710061, Shaanxi Province, People's Republic of China.
| | - Heng Du
- Department of Orthopedics, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Jianguo Lv
- Rehabilitation Center, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, No. 277, Yanta West Road, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Lianhe Zhang
- Department of Statistics, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi Province, People's Republic of China
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de Faria AP, Ritter AMV, Sabbatini AR, Modolo R, Moreno H. Effects of leptin and leptin receptor SNPs on clinical- and metabolic-related traits in apparent treatment-resistant hypertension. Blood Press 2016; 26:74-80. [PMID: 27310420 DOI: 10.1080/08037051.2016.1192945] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leptin is associated to the lack of blood pressure control as well as target organ damage in resistant hypertensive (RH) subjects. Single-nucleotide polymorphisms (SNPs) rs7799039 and rs1137101 in leptin (LEP) and leptin receptor (LEPR) genes, respectively, are associated with cardiovascular disease and metabolic syndrome. We evaluated the association of these two SNPs with clinical and biochemical features in 109 apparent treatment-RH subjects (aTRH) and 125 controlled hypertensives. Homozygous genotypes GG (n = 43) vs. AA (n = 14) for rs7799039 and AA (n = 34) vs. GG (n = 26) genotypes for rs1137101 were compared in aTRH subjects. There was no difference in leptin levels among both SNPs. On the other hand, LEP SNP (GG vs. AA) associated with the levels of glycated haemoglobin (6.4 ± 1.4 vs. 7.8 ± 2.3%, p = 0.03), insulin (8.6 ± 4.6 vs. 30.6 ± 27.7 uUI/mL, p = 0.01), HDL-cholesterol (51 ± 16 vs. 39 ± 11 mg/dL, p = 0.001) and PWV (9.5 ± 2.1 vs. 11.2 ± 2.8 m/s, p = 0.03). LEPR SNP (AA vs. GG), associated with heart rate (69 ± 12 vs. 67 ± 12 bpm, p = 0.03), fat mass (31 ± 11 vs. 24 ± 8 kg, p = 0.03) and triglycerides levels (175 ± 69 vs. 135 ± 75 mg/dL, p = 0.03). These findings may be clinically useful for identifying a group of aTRH who may have a LEP and/or LEPR gene variants, which may predispose this specific group to worse or better outcomes.
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Affiliation(s)
- Ana Paula de Faria
- a Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas , Campinas , SP , Brazil
| | - Alessandra M V Ritter
- a Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas , Campinas , SP , Brazil
| | - Andréa R Sabbatini
- a Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas , Campinas , SP , Brazil
| | - Rodrigo Modolo
- a Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas , Campinas , SP , Brazil
| | - Heitor Moreno
- a Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas , Campinas , SP , Brazil
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An BQ, Lu LL, Yuan C, Xin YN, Xuan SY. Leptin Receptor Gene Polymorphisms and the Risk of Non-Alcoholic Fatty Liver Disease and Coronary Atherosclerosis in the Chinese Han Population. HEPATITIS MONTHLY 2016; 16:e35055. [PMID: 27257426 PMCID: PMC4888499 DOI: 10.5812/hepatmon.35055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/26/2016] [Accepted: 02/05/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Leptin receptor (LEPR) polymorphisms have been reported to be associated with lipid metabolism and insulin resistance in various populations. However, whether LEPR polymorphisms are associated with the risks of non-alcoholic fatty liver disease (NAFLD) and coronary atherosclerosis in the Chinese Han population remains unknown. OBJECTIVES To investigate the association of LEPR polymorphisms at Q223R and K109R with the risks of NAFLD and coronary atherosclerosis in the Chinese Han population. PATIENTS AND METHODS Genotypes of LEPR Q223R and K109R were determined by polymerase chain reaction followed by sequencing in patients with NAFLD (n = 554), coronary atherosclerosis (n = 421), and healthy controls (n = 550). Serum lipid profiles were determined using biochemical methods. Pearson's χ(2) test was used to check for Hardy-Weinberg equilibrium and to analyze the distributions of genotypes' alleles between groups. Baseline characteristics were analyzed using student's t-test, paired-samples t-test, or the χ(2) test where appropriate. RESULTS The LEPR Q223R A allele significantly reduced the risks of both NAFLD and coronary atherosclerosis (OR = 0.683, 95% CI: 0.527 - 0.884, P = 0.004 and OR = 0.724, 95% CI: 0.548 - 0.955, P = 0.022, respectively). Compared to controls, no significant differences in the genotype and allele frequencies of K109R were found in the NAFLD and coronary atherosclerosis populations, respectively. However, there was a significantly increased risk of coronary atherosclerosis in NAFLD patients who carried the K109R A allele (OR = 2.283, 95% CI: 1.556 - 3.348, P < 0.001). CONCLUSIONS LEPR Q223R polymorphisms may confer a significant risk of NAFLD and coronary atherosclerosis. The A allele in the K109R polymorphism might be considered an independent risk factor for coronary atherosclerosis in NAFLD patients.
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Affiliation(s)
- Bai-Quan An
- Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Lin-Lin Lu
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Chen Yuan
- Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Yong-Ning Xin
- Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Corresponding Authors: Yong-Ning Xin, Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China. Tel: +86-53288905289, Fax: +86-53288905293, E-mail: ; Shi-Ying Xuan, Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China. Tel: +86-53288905289, Fax: +86-53288905293, E-mail:
| | - Shi-Ying Xuan
- Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Corresponding Authors: Yong-Ning Xin, Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China. Tel: +86-53288905289, Fax: +86-53288905293, E-mail: ; Shi-Ying Xuan, Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China. Tel: +86-53288905289, Fax: +86-53288905293, E-mail:
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Lian Y, Tang Z, Xie Y, Chen Z. Leptin receptor gene polymorphisms and risk of hypertension: a meta-analysis. Int J Clin Exp Med 2015; 8:14277-82. [PMID: 26550411 PMCID: PMC4613096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 07/10/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To assess the relationship between the polymorphisms of leptin receptor gene and hypertension. METHODS Meta analysis was conducted by using RevMan 5.3. Relevant literatures were retrieved by searching PubMed using the keywords "Hypertension", "Leptin Receptor", "OB Receptor", "LEPR Protein". RESULTS Fifteen studies with a total of 5955 patients with hypertension and 3830 healthy controls were included in this meta-analysis. The results showed that Gln223Arg gene polymorphism was significantly higher in hypertension patients than in control (OR=1.36, 95% CI=1.23-1.51, P<0.00001). However, no statistically significant difference was found in Lys109Arg polymorphism between hypertension patients and control (OR=0.99, 95% CI=0.85-1.16, P=0.91). CONCLUSION Gln223Arg, but not Lys109Arg gene polymorphism, is higher in hypertension patients, suggesting that patients with Gln223Arg allele carry a higher risk to develop hypertension.
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Affiliation(s)
- Yingdong Lian
- Department of Emergency, Jining First People’s HospitalChina
| | - Zhijun Tang
- Department of Orthopedics Rehabilitation and Reconstruction, Linyi People’s HospitalChina
| | - Yuxi Xie
- ICU, Hebei United University Affiliated HospitalChina
| | - Zongxiang Chen
- Department of Emergency, Jining First People’s HospitalChina
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Tang H, Zhang Z, Li ZK, Lin J, Fang DZ. Association of Leptin Receptor Gene Polymorphisms with Genetic Susceptibility to Ischemic Stroke. J Stroke Cerebrovasc Dis 2015; 24:2128-33. [PMID: 26150085 DOI: 10.1016/j.jstrokecerebrovasdis.2015.05.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 05/20/2015] [Accepted: 05/26/2015] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Ischemic stroke is a multifactorial disease that is influenced by both genetic and environmental factors. Identification of the genetic factors that are underlining this disease is important. Leptin receptor (LEPR) mediates the leptin-regulated human energy homeostasis, and mutations of LEPR can increase cardiovascular risks and may predispose an individual to ischemic stroke. METHODS We analyzed distribution of 3 single nucleotide polymorphisms (SNPs) of LEPR gene (Lys109Arg, Gln223Arg, and Lys656Asn) in 101 patients with ischemic stroke and 105 controls by polymerase chain reaction-restriction fragment length polymorphism strategy. RESULTS Our results showed that there were significant differences in the genotype and allele distribution of Lys109Arg and Gln223Arg polymorphisms of the LEPR gene between case and control. The 109GG and 223GG genotype were associated with a significantly increased risk of ischemic stroke (odds ratio [OR], 3.23; P = .001 and OR, 2.87; P = .008, respectively). The 109G and 223G alleles carriers were correlated with an increased incidence of ischemic stroke (OR, 2.72; P = .001; OR, 2.94; P = .004). By haplotype analyses, we found that 109A/223G/656G haplotype was associated with an increased risk of ischemic stroke although this was not observed in the control group (OR, 3.86; P = .029). CONCLUSIONS LEPR 109GG and 223GG genotypes and the 109G and 223G alleles are associated with the risk of ischemic stroke. Our data suggest that LEPR Lys109Arg and Gln223Arg polymorphisms could be used as genetic predictive factor for ischemic stroke.
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Affiliation(s)
- Hui Tang
- Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, SiChuan University, ChengDu, China
| | - Zhen Zhang
- Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, SiChuan University, ChengDu, China
| | - Zheng-Ke Li
- Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, SiChuan University, ChengDu, China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, SiChuan University, ChengDu, China
| | - Ding-Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, SiChuan University, ChengDu, China.
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Jin SG, Chen GL, Yang SL, Zhao MY. Gene-gene interactions among CX3CL1, LEPR and IL-6 related to coronary artery disease in Chinese Han population. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:5968-5973. [PMID: 26191329 PMCID: PMC4503200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The purpose of this study was to investigate the impact of the interactions among CX3CL1 (rs170364 and rs614230), LEPR (rs6700896), and IL-6 (rs2066992) polymorphisms on the risk of coronary artery disease (CAD) in Chinese Han population. METHODS 120 CAD patients and 109 healthy controls were enrolled in the study. Polymerase chain reaction (PCR) and direct sequencing methods were used to analyze the genotypes of CX3CL1, LEPR, and IL-6 polymorphisms. Multifactor dimensionality reduction (MDR) software was utilized to analyze gene-gene interactions. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were used for evaluating the association between gene polymorphisms or gene-gene interactions and CAD risk. RESULTS In the study, TT genotype of rs170364 in CX3CL1 might decrease the CAD risk (OR=0.39, 95% CI=0.16-0.98). No significant correlation was found between T allele of rs170364 and CAD risk (P>0.05). CC genotype and C allele in rs614230 (CX3CL1) were significantly related with decreased risk of CAD (OR=0.38, 95% CI=0.17-0.86; OR=0.66, 95% CI=0.45-0.97). For IL-6 rs2066992 polymorphism. GG genotype could increase the risk of CAD (OR=2.32, 95% CI=1.04-5.17). Whereas, no significant correlation was observed between LEPR rs6700896 and CAD susceptibility. MDR analysis showed that CX3CL1, LEPR and IL-6 genes might jointly promote the occurrence of CAD. CONCLUSIONS The interactions of CX3CL1, LEPR and IL-6 genes might increase the risk of CAD.
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Affiliation(s)
- Song-Gen Jin
- Department of Intensive Care Unit, The First Clinical Hospital Affliated to Harbin Medical UniversityHarbin 150001, Heilongjiang, China
| | - Guo-Lin Chen
- The First Ward of Department of Infection, The First Clinical Hospital Affliated to Harbin Medical UniversityHarbin 150001, Heilongjiang, China
| | - Song-Liu Yang
- Department of Intensive Care Unit, The First Clinical Hospital Affliated to Harbin Medical UniversityHarbin 150001, Heilongjiang, China
| | - Ming-Yan Zhao
- Department of Intensive Care Unit, The First Clinical Hospital Affliated to Harbin Medical UniversityHarbin 150001, Heilongjiang, China
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15
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Duan P, Wang ZM, Liu J, Wang LN, Yang Z, Tu P. Association of gene polymorphisms in RANKL/RANK/OPG system with hypertension and blood pressure in Chinese women. J Hum Hypertens 2015; 29:749-53. [PMID: 25810067 DOI: 10.1038/jhh.2015.13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 12/09/2014] [Accepted: 01/20/2015] [Indexed: 02/05/2023]
Abstract
Recent studies have revealed that the receptor activator of nuclear factor-kappa B ligand/RANK/osteoprotegerin (RANKL/RANK/OPG) system has an important role in vascular calcification, which is contributory to various cardiovascular diseases and intimately linked to the regulation of blood pressure. Therefore, we performed a case-control study to investigate the associations of 21 single-nucleotide polymorphisms (SNPs) in the TNFSF11, TNFRSF11A and TNFRSF11B genes in the RANKL/RANK/OPG system with hypertension and blood pressure in post-menopausal Chinese women. In this study, 503 hypertensive patients and 509 normal controls were recruited. Genotyping was performed using the high-throughput Sequenom genotyping platform. The results showed that two SNPs (rs6567270 and rs4603673) in the TNFRSF11A were associated with hypertension (P=0.010 and P=0.013, respectively) and systolic blood pressure (P=0.024 and P=0.023, respectively). One SNP (rs9646629) in the TNFRSF11A showed significant association with diastolic blood pressure (P=0.031). The results of this study suggest that TNFRSF11A but not TNFSF11 and TNFRSF11B genetic variation is associated with hypertension and blood pressure in Chinese women. The findings provide additional support for the genetic role of RANKL/RANK/OPG system in hypertension and blood pressure regulation.
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Affiliation(s)
- P Duan
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
| | - Z-M Wang
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
| | - J Liu
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
| | - L-N Wang
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
| | - Z Yang
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
| | - P Tu
- Department of Endocrinology and Metabolism, Nanchang Key Laboratory of Diabetes, The Third Hospital of Nanchang, Nanchang city, People's Republic of China
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Li YX, Zhang Q, Shang XM, Li YQ, Liu XK, Liu CQ, Liu XM, Zhang QH. Association of Two Well-defined Polymorphisms in Leptin and Leptin Receptor Genes with Hypertension and Circulating Leptin: A Meta-analysis. Arch Med Res 2015; 46:38-46. [DOI: 10.1016/j.arcmed.2014.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 11/13/2014] [Indexed: 12/12/2022]
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Go MJ, Hwang JY, Jang HB, Heo L, Park TJ, Lee HJ, Park KH, Kang JH, Lee J, Han BG, Song J, Kim BJ. A genome-wide association study identifies a LEPR gene as a novel predisposing factor for childhood fasting plasma glucose. Genomics 2014; 104:594-8. [PMID: 25223902 DOI: 10.1016/j.ygeno.2014.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/29/2014] [Accepted: 09/03/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Min Jin Go
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Joo-Yeon Hwang
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Han Byul Jang
- Division of Metabolic Diseases, Center for Biomedical Sciences, Korea National Institute of Health, Cheongwon-gun, Chungcheongbuk-do 363-951, Republic of Korea
| | - Lyong Heo
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Tae-Joon Park
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Hye-Ja Lee
- Division of Metabolic Diseases, Center for Biomedical Sciences, Korea National Institute of Health, Cheongwon-gun, Chungcheongbuk-do 363-951, Republic of Korea
| | - Kyung-Hee Park
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi-do 431-796, Republic of Korea
| | - Jae Heon Kang
- Department of Family Medicine, Obesity Research Institute, Seoul Paik Hospital, College of Medicine, Inje University, Seoul 100-032, Republic of Korea
| | - Juyoung Lee
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Bok-Ghee Han
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea
| | - Jihyun Song
- Division of Metabolic Diseases, Center for Biomedical Sciences, Korea National Institute of Health, Cheongwon-gun, Chungcheongbuk-do 363-951, Republic of Korea
| | - Bong-Jo Kim
- Center for Genome Science, National Institute of Health, Osong Health Technology Administration Complex, Chungcheongbuk-do, Republic of Korea.
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