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Ji Y, Song J, Su T, Gu X. Adipokine Retinol Binding Protein 4 and Cardiovascular Diseases. Front Physiol 2022; 13:856298. [PMID: 35309061 PMCID: PMC8924404 DOI: 10.3389/fphys.2022.856298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 01/31/2022] [Indexed: 01/12/2023] Open
Abstract
The morbidity and mortality of cardiovascular diseases (CVDs) have been increasing year by year all over the world and expanding greatly to the younger population, which becomes the leading causes of death globally that threatens human life safety. Prediction of the occurrence of diseases by using risk related adverse events is crucial for screening and early detection of CVDs. Thus, the discovery of new biomarkers that related to risks of CVDs are of urgent in the field. Retinol-binding protein 4 (RBP4) is a 21-kDa adipokine, mainly secreted by adipocytes. Besides its well-established function in the induction of insulin resistance, it has also been found in recent years to be closely associated with CVDs and other risk factors, such as hypertension, coronary heart disease, heart failure, obesity, and hyperlipidemia. In this review, we mainly focus on the progress of research that establishes the correlation between RBP4 and CVDs and the corresponding major risk factors in recent years.
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Chen J, Wang C, Kuang S. Transdifferentiation of Muscle Satellite Cells to Adipose Cells Using CRISPR/Cas9-Mediated Targeting of MyoD. Methods Mol Biol 2019; 1889:25-41. [PMID: 30367407 PMCID: PMC7092730 DOI: 10.1007/978-1-4939-8897-6_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Brown adipocytes dissipate energy through non-shivering thermogenesis mediated by UCP1 protein, hence representing a powerful target to overcome obesity due to energy surplus. However, brown adipocytes are scarce in adult humans, especially in obese subjects, urging the development of novel strategies to boost the number of these thermogenic adipocytes from a therapeutical perspective. In this regard, transdifferentiation of myoblasts into brown adipocytes represents a promising approach. Here, we describe a method that we have recently developed to transdifferentiate myoblasts into brown adipocytes through CRISPR/Cas9-medidated targeting of MyoD, the master myogenic regulatory factor.
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Affiliation(s)
- Jingjuan Chen
- Department of Animal Science, Purdue University, West Lafayette, IN, USA
| | - Chao Wang
- Department of Animal Science, Purdue University, West Lafayette, IN, USA
| | - Shihuan Kuang
- Department of Animal Science, Purdue University, West Lafayette, IN, USA.
- Center for Cancer Research, Purdue University, West Lafayette, IN, USA.
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Aref-Eshghi E, Hurley O, Sun G, Simms A, Godwin M, Duke P, Araee M, Mahdavian M, Asghari S. Genetic associations in community context: a mixed model approach identifies a functional variant in the RBP4 gene associated with HDL-C dyslipidemia. BMC MEDICAL GENETICS 2018; 19:205. [PMID: 30497399 PMCID: PMC6267790 DOI: 10.1186/s12881-018-0719-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 11/14/2018] [Indexed: 12/29/2022]
Abstract
Background The objective of this study was to examine individual and community factors that influence high-density lipoprotein cholesterol (HDL-C) dyslipidemia in Newfoundland and Labrador (NL), a genetically isolated population in Canada with a high prevalence of HDL-C dyslipidemia. Methods First, a group of single nucleotide polymorphisms from 10 metabolic trait candidate genes was tested using a multivariate logistic regression model. The significant SNPs were entered into the second phase, where a mixed logistic model incorporated the community disease risk factors together with the individual factors as the fixed part of the model and the geographic region as a random effect. Results Analysis of 1489 subjects (26.9% HDL-C dyslipidemia) identified rs3758539, a non-coding variant in the 5’UTR of RBP4, to be associated with HDL-C dyslipidemia (odds ratio = 1.45, 95% confidence interval = 1.08–1.97, p = 0.01). The association remained significant, and the effect size did not change after the incorporation of individual and community risk factors from 17 geographic regions (odds ratio: 1.41, 95% confidence interval = 1.03–1.93, p = 0.03) in NL. Besides this variant, sex, BMI, and smoking also showed significant associations with HDL-C dyslipidemia, whereas no role was identified for the community factors. Conclusions This study demonstrates the use of community-level data in a genetic association testing. It reports a functional variant in the promoter of RBP4, a gene directly involved in lipoprotein metabolism, to be associated with HDL-C dyslipidemia. These findings indicate that individual factors are the main reason for a higher prevalence of HDL-C dyslipidemia in the NL population.
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Affiliation(s)
- Erfan Aref-Eshghi
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Oliver Hurley
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Guang Sun
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Alvin Simms
- Department of Geography, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Marshall Godwin
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Pauline Duke
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Mehdee Araee
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Masoud Mahdavian
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Shabnam Asghari
- Faculty of Medicine, Memorial University of Newfoundland, M5M107 Medical Education Building, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
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4
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Evaluation of serum retinol-binding protein-4 levels as a biomarker of poor short-term prognosis in ischemic stroke. Biosci Rep 2018; 38:BSR20180786. [PMID: 30038059 PMCID: PMC6131228 DOI: 10.1042/bsr20180786] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 12/29/2022] Open
Abstract
The aim was to investigate the relationship between retinol-binding protein 4 (RBP4) levels and short-term functional outcome, and to determine its possible role in acute ischemic stroke (AIS). In a prospective observational study, 299 first-ever AIS who were admitted to our hospital were included. Serum levels of RBP4 were assayed and severity of stroke was evaluated with the National Institutes of Health Stroke Scale (NIHSS) score on admission. The prognostic value of RBP4 to predict the poor outcome within 3 months was compared with the NIHSS and with other known outcome predictors. The median age of the included patients was 66 (interquartile range (IQR): 55-77) years and 155 (51.8%) were women. A poor functional outcome was found in 88 patients (29.4%), and significantly higher RBP4 values were found in poor outcomes rather than good outcomes patients (P<0.001). The poor outcomes distribution across the RBP4 quartiles ranged between 9.3% (first quartile) and 60.8% (fourth quartile). In multivariate models comparing the second(Q2), third, and fourth quartiles against the first quartile of the RBP4, RBP4 in Q3 and Q4 were associated with poor functional outcome, and increased risk of poor functional outcome by 144% (OR: 2.44; 95% confidence interval (CI): 1.22-5.03) and 602% (7.02; 3.11-12.24), respectively. Interestingly, RBP4 improved the NIHSS score (area under the curve (AUC) of the combined model, 0.79; 95% CI: 0.74-0.85; P<0.001). The data showed that elevated serum levels of RBP4 at admission were associated with severity and prognosis of AIS, suggesting that vitamin A metabolism or impaired insulin signaling could be involved.
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Majerczyk M, Choręza P, Mizia-Stec K, Bożentowicz-Wikarek M, Brzozowska A, Arabzada H, Owczarek AJ, Szybalska A, Grodzicki T, Więcek A, Olszanecka-Glinianowicz M, Chudek J. Plasma Level of Retinol-Binding Protein 4, N-Terminal proBNP and Renal Function in Older Patients Hospitalized for Heart Failure. Cardiorenal Med 2018; 8:237-248. [PMID: 29972826 DOI: 10.1159/000489403] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/18/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND/AIM Elevated plasma concentration of retinol-binding protein 4 (RBP4) has recently emerged as a potential new risk factor for cardiovascular diseases, including hypertension (HT) and coronary artery disease (CAD). Limited data suggest that RBP4 promotes inflammatory damage to cardiomyocytes and participates in the development of heart failure (HF). This study aimed to analyze the relationship between concentrations of plasma RBP4 and serum N-terminal proBNP (NT-proBNP), a powerful biomarker of left ventricle dysfunction, in the older Polish population. METHODS The study sample consisted of 2,826 (1,487 men) participants of the PolSenior study, aged 65 years and older, including a subgroup hospitalized for HF (n = 282). In all subjects, plasma concentrations of RBP4, interleukin-6 (IL-6), serum level of NT-proBNP, and hs-CRP were measured. Additionally, BMI, estimated glomerular filtration rate (eGFR), and HOMA-IR were calculated. The prevalence of HT, CAD, atrial fibrillation (AF), and medication were considered as potential confounders. RESULTS Similar RBP4 levels were found in subjects with NT-proBNP < 125 and ≥125 ng/mL, with and without AF, and in the subgroups hospitalized for HF with and without AF. Regression analysis revealed no association between log10(NT-proBNP) and log10(RBP4). Plasma levels of RBP4 were increased by HT occurrence and diuretic therapy, while diminished with regard to female gender, age, eGFR values, AF, and IL-6 levels. CONCLUSION Our results show that RBP4 is affected by GFR but cannot be considered as an independent biomarker of heart muscle dysfunction.
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Affiliation(s)
- Marcin Majerczyk
- Pathophysiology Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.,Department of Cardiology, District Hospital in Zakopane, Zakopane, Poland
| | - Piotr Choręza
- Department of Statistics, Department of Instrumental Analysis, School of Pharmacy and Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Mizia-Stec
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Maria Bożentowicz-Wikarek
- Pathophysiology Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Aniceta Brzozowska
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Habibullah Arabzada
- Pathophysiology Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Aleksander J Owczarek
- Department of Statistics, Department of Instrumental Analysis, School of Pharmacy and Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | | | - Tomasz Grodzicki
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland
| | - Andrzej Więcek
- Department of Nephrology, Transplantation and Internal Medicine, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Magdalena Olszanecka-Glinianowicz
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Jerzy Chudek
- Pathophysiology Unit, Department of Pathophysiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.,Department of Internal Diseases and Oncological Chemotherapy, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
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Korek E, Gibas-Dorna M, Chęcińska-Maciejewska Z, Krauss H, Łagiedo-Żelazowska M, Kołodziejczak B, Bogdański P. Serum RBP4 positively correlates with triglyceride level but not with BMI, fat mass and insulin resistance in healthy obese and non-obese individuals. Biomarkers 2018; 23:683-688. [DOI: 10.1080/1354750x.2018.1479770] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Emilia Korek
- Department of Physiology, Poznan University of Medical Sciences, Poznan, Poland
| | | | | | - Hanna Krauss
- Department of Physiology, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Barbara Kołodziejczak
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland
| | - Paweł Bogdański
- Department of Education and Obesity Treatment and Metabolic Disorders, Poznan University of Medical Sciences, Poznan, Poland
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Inoue T, Takemori K, Mizuguchi N, Kimura M, Chikugo T, Hagiyama M, Yoneshige A, Mori T, Maenishi O, Kometani T, Itoh T, Satou T, Ito A. Heart-bound adiponectin, not serum adiponectin, inversely correlates with cardiac hypertrophy in stroke-prone spontaneously hypertensive rats. Exp Physiol 2017; 102:1435-1447. [DOI: 10.1113/ep086407] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/23/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Takao Inoue
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Kumiko Takemori
- Department of Food Science and Nutrition, Faculty of Agriculture; Kindai University; Nara Japan
| | | | - Masatomo Kimura
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Takaaki Chikugo
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Man Hagiyama
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Azusa Yoneshige
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Tatsufumi Mori
- Kindai University Life Science Research Institute; Osaka Japan
| | - Osamu Maenishi
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
| | - Takashi Kometani
- Department of Food Science and Nutrition, Faculty of Agriculture; Kindai University; Nara Japan
| | - Tatsuki Itoh
- Department of Food Science and Nutrition, Faculty of Agriculture; Kindai University; Nara Japan
| | - Takao Satou
- Department of Hospital Pathology; Kindai University Hospital; Osaka Japan
| | - Akihiko Ito
- Department of Pathology, Faculty of Medicine; Kindai University; Osaka Japan
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Zhang M, Zhao Y, Sun H, Luo X, Wang C, Li L, Zhang L, Wang B, Ren Y, Zhou J, Han C, Zhang H, Yang X, Pang C, Yin L, Feng T, Zhao J, Hu D. Effect of dynamic change in body mass index on the risk of hypertension: Results from the Rural Chinese Cohort Study. Int J Cardiol 2017; 238:117-122. [DOI: 10.1016/j.ijcard.2017.03.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 03/03/2017] [Accepted: 03/08/2017] [Indexed: 02/03/2023]
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9
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Zhang JX, Zhu GP, Zhang BL, Cheng YY. Elevated serum retinol-binding protein 4 levels are correlated with blood pressure in prehypertensive Chinese. J Hum Hypertens 2017. [DOI: 10.1038/jhh.2017.44] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Tabesh M, Noroozi A, Amini M, Feizi A, Saraf-Bank S, Zare M. Association of retinol-binding protein 4 with metabolic syndrome in first-degree relatives of type 2 diabetic patients. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2017; 22:28. [PMID: 28413425 PMCID: PMC5377966 DOI: 10.4103/1735-1995.200270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/25/2016] [Accepted: 11/06/2016] [Indexed: 11/06/2022]
Abstract
Background: Retinol-binding protein 4 (RBP4) is known to regulate lipid and glucose metabolism and insulin resistance. The influences of RBP4 on metabolic syndrome (MS) are still unclear. The purpose of this study is to evaluate the association between serum levels of RBP4 and MS components in first-degree relations of type 2 diabetic patients. Materials and Methods: This cross-sectional study was performed within the framework of the diabetes prevention project in Isfahan. This study has been conducted during 2012–2013. Seventy-eight subjects participate, with an average age of 43.20 ± 5.29 years. Weight, height, waist and hip circumferences, blood pressure (BP) of participants, fasting plasma glucose, hemoglobin A1c, total cholesterol, high-density lipoprotein cholesterol, triglyceride (TG), and serum RBP4 were measured from fasting blood sample taken from each participant after an overnight fast (12–14 h). Results: Systolic and diastolic BP were significantly higher in people in top median of RBP4 (11.8 ± 1.5 vs. 11.0 ± 1.2, P = 0.01 and 7.8 ± 1.0 vs. 7.3 ± 0.9, P = 0.03). Moreover, TG in people with high levels of RBP4 was higher compared with those with low levels of RBP4 (177.7 ± 97.6 vs. 138.7 ± 56.9, P = 0.02). People with low levels of RBP4 had significant greater hip circumferences (107.9 ± 7.5 vs. 104.3 ± 8.0, P = 0.04). There was no correlation between RBP4 and MS in crude model (odds ratio [OR]: 1.00, 0.95–1.05, P = 0.97). This null correlation remained after adjustment for body mass index, age, and physical activity (OR: 0.93, 0.91–1.07, P = 0.31). Conclusion: Although RBP4 levels were positively association with some risk factors of MS including hip circumference, TG, and systolic and diastolic BP, it does not seem to be a valuable marker for identification of the MS in the first relative degree of diabetic patients.
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Affiliation(s)
- Marjan Tabesh
- Department of Community Nutrition, Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atsa Noroozi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Masood Amini
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Saraf-Bank
- Department of Community Nutrition, Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Zare
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Majerczyk M, Choręza P, Bożentowicz-Wikarek M, Brzozowska A, Arabzada H, Owczarek A, Mossakowska M, Grodzicki T, Zdrojewski T, Więcek A, Olszanecka-Glinianowicz M, Chudek J. Increased plasma RBP4 concentration in older hypertensives is related to the decreased kidney function and the number of antihypertensive drugs-results from the PolSenior substudy. ACTA ACUST UNITED AC 2016; 11:71-80. [PMID: 28038989 DOI: 10.1016/j.jash.2016.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 12/28/2022]
Abstract
Increased plasma retinol-binding protein 4 (RBP4), a novel adipokine, has been associated in previous studies with obesity, type 2 diabetes, dyslipidemia, hypertension (HT), atherosclerosis, and coronary artery disease. This study aimed to analyze the relationship between HT occurrence and its treatment, and plasma RBP4 concentrations in the older polish population. The study sample consisted of 1728 (890 men and 838 women) PolSenior study participants aged 65 years and older with available plasma samples and NT-proBNP values below 2000 pg/mL. The analysis included body mass index, waist circumference, blood pressure, antihypertensive medication, estimated glomerular filtration rate, serum glucose and insulin (and the homeostatic model assessment of insulin resistance), and plasma RBP4 levels. RBP4 plasma concentrations were higher in hypertensive (N = 645) than normotensive (N = 236) men (43.4 [30.4-64.8] vs. 38.1 [27.1-54.4] ng/mL, respectively; P < .01) but not in women (44.6 [29.6-63.5] vs. 40.7 [29.1-58.1] ng/mL, respectively; P = .21). In the subanalysis, higher plasma RBP4 levels were observed in women with treated than untreated HT and in subjects taking four of more antihypertensive drugs. The linear regression shown that estimated glomerular filtration rate (β = -0.015), thiazide diuretics (β = 0.041), and α-blockers (β = 0.049) were explaining log10RBP4 plasma levels variability in the study group. Older male Caucasians with HT are characterized by elevated plasma RBP4 levels. This increase is proportional to the number of antihypertensive drugs and decreased glomerular filtration rate. Among the antihypertensive drugs, only thiazide diuretics and α-blockers had a significant influence on RBP4 levels.
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Affiliation(s)
- Marcin Majerczyk
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland; Department of Cardiology, District Hospital in Zakopane, Poland
| | - Piotr Choręza
- Division of Statistics, Department of Instrumental Analysis, Faculty of Pharmacy and Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Maria Bożentowicz-Wikarek
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
| | - Aniceta Brzozowska
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
| | - Habibullah Arabzada
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
| | - Aleksander Owczarek
- Division of Statistics, Department of Instrumental Analysis, Faculty of Pharmacy and Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | | | - Tomasz Grodzicki
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland
| | - Tomasz Zdrojewski
- Department of Preventive Medicine and Education, Medical University of Gdansk, Gdansk, Poland
| | - Andrzej Więcek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Magdalena Olszanecka-Glinianowicz
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
| | - Jerzy Chudek
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland; Department of Internal Medicine and Oncological Chemotherapy, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland.
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12
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Gao W, Wang H, Zhang L, Cao Y, Bao JZ, Liu ZX, Wang LS, Yang Q, Lu X. Retinol-Binding Protein 4 Induces Cardiomyocyte Hypertrophy by Activating TLR4/MyD88 Pathway. Endocrinology 2016; 157:2282-93. [PMID: 27100622 PMCID: PMC4891784 DOI: 10.1210/en.2015-2022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Insulin resistance plays a major role in the development and progression of cardiac hypertrophy and heart failure. Heart failure in turn promotes insulin resistance and increases the risk for diabetes. The vicious cycle determines significant mortality in patients with heart failure and diabetes. However, the underlying mechanisms for the vicious cycle are not fully elucidated. Here we show that circulating levels and adipose expression of retinol-binding protein 4 (RBP4), an adipokine that contributes to systemic insulin resistance, were elevated in cardiac hypertrophy induced by transverse aortic constriction and angiotensin-II (Ang-II) infusion. Ang-II increased RBP4 expression in adipocytes, which was abolished by losartan, an Ang-II receptor blocker. The elevated RBP4 in cardiac hypertrophy may have pathophysiological consequences because RBP4 increased cell size, enhanced protein synthesis, and elevated the expression of hypertrophic markers including Anp, Bnp, and Myh7 in primary cardiomyocytes. Mechanistically, RBP4 induced the expression and activity of toll-like receptor 4 (TLR4) and myeloid differentiation primary response gene 88 (MyD88) in cardiomyocytes, resulting in enhanced inflammation and reactive oxygen species production. Inhibition or knockdown of the TLR4/MyD88 pathway attenuated inflammatory and hypertrophic responses to RBP4 stimulation. Importantly, RBP4 also reduced the expression of glucose transporter-4 and impaired insulin-stimulated glucose uptake in cardiomyocytes. This impairment was ameliorated in cardiomyocytes from TLR4 knockout mice. Therefore, RBP4 may be a critical modulator promoting the vicious cycle of insulin resistance and heart failure by activating TLR4/MyD88-mediated inflammatory pathways. Potentially, lowering RBP4 might break the vicious cycle and improve both insulin resistance and cardiac hypertrophy.
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Affiliation(s)
- Wei Gao
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Hao Wang
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Lin Zhang
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yang Cao
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ji-Zhang Bao
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zheng-Xia Liu
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Lian-Sheng Wang
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Qin Yang
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiang Lu
- Department of Geriatrics (W.G., Z.-X.L., X.L.), the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; Department of Medicine, Physiology, and Biophysics (W.G., L.Z., Y.C., J.-Z.B., Q.Y.), Center for Diabetes Research and Treatment, Center for Epigenetics and Metabolism, University of California, Irvine, Irvine, California 92697; and Department of Cardiology (H.W., L.-S.W.), the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Zabetian-Targhi F, Mahmoudi MJ, Rezaei N, Mahmoudi M. Retinol binding protein 4 in relation to diet, inflammation, immunity, and cardiovascular diseases. Adv Nutr 2015; 6:748-62. [PMID: 26567199 PMCID: PMC4642414 DOI: 10.3945/an.115.008292] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Retinol binding protein 4 (RBP4), previously called retinol binding protein (RBP), is considered a specific carrier of retinol in the blood. It is also an adipokine that has been implicated in the pathophysiology of insulin resistance. RBP4 seems to be correlated with cardiometabolic markers in inflammatory chronic diseases, including obesity, type 2 diabetes, metabolic syndrome, and cardiovascular diseases (CVDs). It has recently been suggested that inflammation produced by RBP4 induces insulin resistance and CVD. The clinical relevance of this hypothesis is discussed in this review. Knowledge concerning the association of RBP4 with inflammation markers, oxidative stress, and CVDs as well as concerning the role of diet and antioxidants in decreasing RBP4 concentrations are discussed. Special attention is given to methodologies used in previously published studies and covariates that should be controlled when planning new studies on this adipokine.
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Affiliation(s)
- Fateme Zabetian-Targhi
- Department of Cellular Molecular Nutrition, School of Nutritional Sciences and Dietetics and
| | | | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran;,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; and,Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Maryam Mahmoudi
- Department of Cellular Molecular Nutrition, School of Nutritional Sciences and Dietetics and
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Wittenbecher C, di Giuseppe R, Biemann R, Menzel J, Arregui M, Hoffmann J, Aleksandrova K, Boeing H, Isermann B, Schulze MB, Weikert C. Reproducibility of Retinol Binding Protein 4 and Omentin-1 Measurements over a Four Months Period: A Reliability Study in a Cohort of 207 Apparently Healthy Participants. PLoS One 2015; 10:e0138480. [PMID: 26402656 PMCID: PMC4581620 DOI: 10.1371/journal.pone.0138480] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/31/2015] [Indexed: 11/19/2022] Open
Abstract
The reliability of single time point measurements of the novel adipokines retinol-binding protein 4 and omentin-1 in the blood has not been evaluated in large samples yet. The present study aimed to assess the amount of biological variation of these two adipokines within individuals. The study sample comprised 207 participants (124 women and 83 men) from Potsdam (Germany) and surrounding areas, with an average age of 56.5 years (SD 4.2). Blood samples were collected from each participant twice, approximately four months apart. Using enzyme linked immunosorbent assays, the concentrations of retinol-binding protein 4 and omentin-1 were determined in EDTA plasma. As indicators of reliability, intraclass correlation coefficients (ICCs) were calculated from the repeated biomarker measurements. The ICCs for repeated retinol-binding protein 4 and omentin-1 measurements were 0.77 (95% CI 0.71, 0.82) and 0.83 (95% CI 0.78, 0.87), respectively, indicating for both adipokines excellent reliability. ICCs were stable across strata according to sex, age, BMI, and blood pressure. Thus, for epidemiological studies it seems reasonable to rely on concentrations of retinol-binding protein 4 and omentin-1 in samples from a single time point if repeated measurements are not available.
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Affiliation(s)
- Clemens Wittenbecher
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Romina di Giuseppe
- Research Group Cardiovascular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Ronald Biemann
- Department for Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Juliane Menzel
- Research Group Cardiovascular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Maria Arregui
- Research Group Cardiovascular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Juliane Hoffmann
- Department for Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Krasimira Aleksandrova
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Heiner Boeing
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Berend Isermann
- Department for Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Matthias B. Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Cornelia Weikert
- Research Group Cardiovascular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Social Medicine, Epidemiology, and Health Economics, Charité University Medical Center, Berlin, Germany
- * E-mail:
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15
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Huang QT, Huang Q, Luo W, Li F, Hang LL, Yu YH, Zhong M. Circulating retinol-binding protein 4 levels in gestational diabetes mellitus: a meta-analysis of observational studies. Gynecol Endocrinol 2015; 31:337-44. [PMID: 25703255 DOI: 10.3109/09513590.2015.1005594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Retinol-binding protein 4 (RBP4) is a novel adipocyte-derived cytokine playing an important role in the regulation of energy metabolism and insulin sensitivity. Although the association between RBP4 and metabolic dysfunction is well established, studies on the relationship between circulating RBP4 levels and the risk of gestational diabetes mellitus (GDM) have yielded inconclusive results. We performed a meta-analysis to investigate whether women with GDM had higher circulating RBP4 levels than the normglycemic pregnant women. PubMed, Web of Science and EMBASE were searched up to 1 August 2014. A total of 14 studies comprised of 884 women with GDM and 1251 normglycemic pregnant women were included. The overall results suggested that maternal circulating RBP4 levels were significantly higher in GDM than their normal controls (SMD: 0.49 μg/ml, 95% CI: 0.23-0.75 μg/ml, p < 0.001, random effect model). However, stratified results indicated that this significant difference only existed in the second/third trimester and was limited to Asian populations. Furthermore, subgroup analysis according to matched maternal age and BMI still demonstrated that GDM had higher circulating RBP4 levels than the normal controls. Our findings suggested that Asian women with GDM had increased circulating RBP4 levels in their second/third trimester.
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Affiliation(s)
- Qi-Tao Huang
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University , Guangzhou , P.R. China and
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16
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Deng W, Zhang Y, Zheng Y, Jiang Y, Wu Q, Liang Z, Yang G, Chen B. Serum retinol-binding protein 4 levels are elevated but do not contribute to insulin resistance in newly diagnosed Chinese hypertensive patients. Diabetol Metab Syndr 2014; 6:72. [PMID: 24932224 PMCID: PMC4058001 DOI: 10.1186/1758-5996-6-72] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 06/06/2014] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Insulin resistance (IR) is closely correlated with cardiovascular disease (CVD). Retinol-binding protein 4 (RBP4) is a novel adipokine that modulates the action of insulin in various diseases. This study addressed the relationship between RBP4 and IR in newly diagnosed essential hypertension. METHODS Serum RBP4, anthropometric and metabolic parameters were determined in 267 newly diagnosed essential hypertensive patients not taking antihypertensive medications. The patients along with 64 control (NC) normotensive and lean subjects paired by age and sex were divided into two groups depending on body mass index (BMI), hypertension with obesity (HPO) and hypertension without obesity (HP). RESULTS A striking difference was observed in RBP4 levels between the HP and NC groups. Significantly higher levels were noted in the HP group compared with the NC group; slightly, but not significantly, lower levels were observed in the HPO group compared with the HP group. After adjusting for BMI, WC and WHR, a modestly linear relationship was observed between RBP4 levels and SBP (r = 0.377; p = 0.00), DBP (r = 0.288; p = 0.00) and HOMA-β(r = 0.121; p = 0.028). Multiple stepwise regression analysis showed that SBP, WHR and drinking were independently related with serum RBP4 levels. CONCLUSIONS The results of this study indicated that RBP4 levels were increased in naive hypertensive patients; however, no differences were observed in obese or non-obese hypertensive subjects. Our data suggest for the first time that RBP4 levels are significantly increased but do not contribute to the development of IR in newly diagnosed hypertensive Chinese patients.
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Affiliation(s)
- Wuquan Deng
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Yuping Zhang
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yanling Zheng
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Youzhao Jiang
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Qinan Wu
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Ziwen Liang
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Bing Chen
- Department of Endocrinology and Metabolism, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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17
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Rocha M, Bañuls C, Bellod L, Rovira-Llopis S, Morillas C, Solá E, Víctor VM, Hernández-Mijares A. Association of serum retinol binding protein 4 with atherogenic dyslipidemia in morbid obese patients. PLoS One 2013; 8:e78670. [PMID: 24223837 PMCID: PMC3817034 DOI: 10.1371/journal.pone.0078670] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 09/14/2013] [Indexed: 12/30/2022] Open
Abstract
Retinol binding protein 4 (RBP4) is an adipokine that may contribute to the development of insulin resistance. However, how this adipokine is affected and its possible involvement in lipid metabolism in obese patients with varying degrees of insulin resistance is yet to be determined. A total of 299 middle-aged morbid obese patients (BMI>40 kg/m(2)) were divided in euglycemic, metabolic syndrome or type 2 diabetic. Anthropometric measurements, biochemical variables and systemic RBP4 levels were determined. RBP4 levels were significantly higher in patients with metabolic syndrome and type 2 diabetes than in euglycemic subjects (42.9±14.6; 42.3±17.0 and 37.4±11.7 µg/ml, respectively) and correlated with triglycerides but not with those of HOMA-IR in the whole population. The multivariate regression model revealed that triglycerides were the strongest predictor of systemic RBP4 levels. Analysis of lipoprotein subfractions in a subpopulation of 80 subjects showed an altered profile of insulin resistant states characterized by higher VLDL, sdLDL and small HDL percentages and lower large HDL percentage. Although RBP4 levels correlated significantly with LDL particle size and small HDL percentage, the latter parameter was independently associated only with RBP4. Our study reveals that systemic RBP4 levels could play an important role in lipid metabolism in morbid obesity, increasing triglyceride levels and contributing to the formation of small HDL.
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Affiliation(s)
- Milagros Rocha
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- CIBER CB06/04/0071 Research Group. CIBER Hepatic and Digestive Diseases, Faculty of Medicine, University of Valencia, Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
| | - Celia Bañuls
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
- Department of Medicine, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Lorena Bellod
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
| | - Susana Rovira-Llopis
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
| | - Carlos Morillas
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
- Department of Medicine, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Eva Solá
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
- Department of Medicine, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Víctor M. Víctor
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- CIBER CB06/04/0071 Research Group. CIBER Hepatic and Digestive Diseases, Faculty of Medicine, University of Valencia, Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
- Department of Physiology, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Antonio Hernández-Mijares
- Service of Endocrinology, University Hospital Dr. Peset, Valencia, Spain
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain
- Institute of Health Research INCLIVA, Valencia, Spain
- Department of Medicine, Faculty of Medicine, University of Valencia, Valencia, Spain
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Wang MN, Han YB, Li Q, Guo L, Yang YM, Wang W, Zhang JC. Higher serum retinol binding protein 4 may be a predictor of weak metabolic control in chinese patients with type 2 diabetes mellitus. J Int Med Res 2013; 40:1317-24. [PMID: 22971483 DOI: 10.1177/147323001204000410] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To investigate relationships between serum levels of retinol binding protein 4 (RBP4) and clinical and metabolic variables in Chinese patients with type 2 diabetes mellitus. METHODS A total of 513 patients (286 males/227 females) provided clinical and lifestyle data and blood and urine samples for analysis. Patients were stratified into four quartile groups according to serum RBP4 concentrations. RESULTS RBP4 concentration was independently associated with gender, systolic blood pressure, serum triglyceride and creatinine levels, and estimated glomerular filtration rate (eGFR). Hypertension, dyslipidaemia, micro albuminuria and impaired eGFR (<60 ml/min per 1.73 m2) were significantly more prevalent in patients with the highest RBP4 levels than in those with the lowest levels. Increased serum RBP4 was associated with increased risk of hypertension, dyslipidaemia, micro albuminuria and impaired eGFR after adjusting for gender, age, body mass index and duration of diabetes. CONCLUSION Serum RBP4 may be a useful marker of overall metabolic control in Chinese patients with type 2 diabetes mellitus.
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Affiliation(s)
- M N Wang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University and The Key Laboratory of Hormonal and Endocrine Diseases, Harbin Medical University, Harbin, Heilongjiang Province, China
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19
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Impact of obesity on incident hypertension independent of weight gain among nonhypertensive Japanese: the Ibaraki Prefectural Health Study (IPHS). J Hypertens 2012; 30:1122-8. [PMID: 22487734 DOI: 10.1097/hjh.0b013e328352b879] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to examine the association between BMI and risk of incident hypertension among Japanese men and women who are middle-aged and older. DESIGN Prospective, population-based cohort study. PATIENTS A total of 68 205 nonhypertensive adults (18 336 men and 49 869 women) aged 40-79 years who completed health check-ups in the Ibaraki prefecture, Japan, in 1993 were followed up through 2006. To exclude the impact of BMI change during the follow-up period, a time-dependent covariate Cox proportional hazards model was used to compute the hazard ratios of incident hypertension according to BMI categories. Incident hypertension was defined as a SBP of at least 140 mmHg, a diastolic BP of at least 90 mmHg, and/or hypertensive medication use. RESULTS A total of 30 982 adults (45.4%) developed hypertension (9331 men and 21 651 women) during a mean of 3.9 years of follow-up. Compared with a BMI of less than 19.0, time-dependent covariates adjusted hazard ratios [95% confidence interval (CI)] for hypertension among participants with a BMI of at least 25.0 were 1.42 (1.17-1.73) for men aged 40-59 years, 1.34 (1.19-1.51) for men aged 60-79 years, 1.47 (1.33-1.62) for women aged 40-59 years, and 1.29 (1.18-1.41) for women aged 60-79 years. CONCLUSION The baseline BMI is associated with future risk for incident hypertension even after accounting for weight change during the follow-up period. Weight loss may be recommended to nonhypertensive obese adults to prevent the development of hypertension.
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Faghihi T, Radfar M, Abdoli E, Amini H, Hemami MR, Larijani B. Association of serum retinol-binding protein 4 with insulin resistance and metabolic parameters during olanzapine therapy. Clin Endocrinol (Oxf) 2012; 76:207-11. [PMID: 21711373 DOI: 10.1111/j.1365-2265.2011.04150.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Retinol-binding protein 4 (RBP4) has been shown to be associated with insulin resistance (IR), metabolic indices and metabolic syndrome (MetS) in various patient populations and in obesity. We investigated the association between metabolic parameters, IR and RBP4 during olanzapine therapy. DESIGN A prospective study. PATIENTS Thirty-seven participants with psychiatric disorder who were atypical antipsychotic naive and newly initiated on olanzapine were assessed. MEASUREMENTS Fasting RBP4, anthropometric and metabolic variables were measured before and after 3 months of olanzapine therapy. RESULTS Participants who developed MetS showed higher RBP4 levels compared with those without MetS, although not significant (P = 0·053). The variation in RBP4 level was correlated with changes in systolic blood pressure (r = 0·423, P = 0·009), diastolic blood pressure (r = 0·390, P = 0·017), total cholesterol (r = 0·446, P = 0·006) and low-density lipoprotein (LDL) (r = 0·407, P = 0·012). Multiple linear regression analysis illustrated that end-point log insulin level was the most significant independent predictor of final log RBP4 levels (standardized ß = 0·353, P = 0·024). CONCLUSIONS Our results suggest that RBP4 levels might be associated with at least some olanzapine-induced metabolic abnormalities and cardiovascular disease risk factors.
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Affiliation(s)
- Toktam Faghihi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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