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Elenkov A, Wirestrand E, Hagsund A, Huhtaniemi I, Giwercman YL, Giwercman A. Non-reproductive effects of follicle-stimulating hormone in young men. Andrology 2023; 11:471-477. [PMID: 36451611 DOI: 10.1111/andr.13335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/28/2022] [Accepted: 10/31/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE Follicle-stimulating hormone (FSH) receptor expression has been reported in many extra-gonadal tissues, raising the question of non-reproductive effects of FSH. Because of increasing usage of FSH in treatment of male infertility, deeper knowledge of possible harmful off-target effects of FSH is warranted. METHODS In total, 33 healthy young men (mean age 30 years) were included in the study. All received an s.c. injection of gonadotropin-releasing hormone (GnRH) antagonist and n = 16 were randomized to 300 IU recombinant FSH (300 IE 3 times/week) for 5 weeks at first visit (V1) whereas n = 17 served as controls. Blood samples were taken at (V1), after 3 weeks (V2), and after 5 weeks (V3), when the study ended. At V2, all subjects received 1000 mg testosterone undecanoate i.m. A standard set of bio- and inflammatory markers were compared between the groups using the Mann-Whitney test adjusted for multiple testing. RESULTS As compared to controls, the FSH treated men had higher SHBG and albumin concentrations at V2 (p = 0.024 and 0.027, respectively), and lower levels of alanine aminotransferase (p = 0.026) and magnesium (p = 0.028) at V3. However, none of the results remained statistically significant after Bonferroni correction (p > 0.0011). CONCLUSIONS FSH had no significant effects on non-reproductive organs when given in standard therapeutic doses to young men for 5 weeks. Therefore, the FSH treatment can be considered safe in otherwise healthy young men, constituting candidates for the infertility treatment with FSH.
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Affiliation(s)
- Angel Elenkov
- Reproductive Medicine Centre, Skane University Hospital Malmo, Malmö, Sweden.,Department of Translational Medicine, Lund University, Lund, Sweden
| | - Elin Wirestrand
- Department of Translational Medicine, Lund University, Lund, Sweden
| | - Agnes Hagsund
- Department of Translational Medicine, Lund University, Lund, Sweden
| | - Ilpo Huhtaniemi
- Department of Translational Medicine, Lund University, Lund, Sweden
| | | | - Aleksander Giwercman
- Reproductive Medicine Centre, Skane University Hospital Malmo, Malmö, Sweden.,Department of Translational Medicine, Lund University, Lund, Sweden
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Vaspin alleviates the lncRNA LEF1-AS1-induced osteogenic differentiation of vascular smooth muscle cells via the Hippo/YAP signaling pathway. Exp Cell Res 2022; 421:113407. [PMID: 36334793 DOI: 10.1016/j.yexcr.2022.113407] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022]
Abstract
Vascular calcification (VC) is closely related to higher cardiovascular mortality and morbidity, and vascular smooth muscle cell (VSMC) switching to osteogenic-like cells is crucial for VC. LncRNA LEF1-AS1 promotes atherosclerosis and dental pulp stem cells calcification, while its role in VC remains unknown. Visceral adipose tissue-derived serine protease inhibitor (vaspin) is an adipokine regulating bone metabolism. However, the relationship between vaspin and VC is still unclear. We aimed to explore the role of LEF1-AS1 on VSMC osteogenic transition, whether vaspin inhibited LEF1-AS1-mediated osteogenic differentiation of VSMCs, and the responsible mechanism. In this study, quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting analysis indicated that LEF1-AS1 overexpression significantly upregulated osteogenic marker Runt-related transcription factor-2 (RUNX2) level and downregulated VSMC contractile marker α-smooth muscle actin (α-SMA) level. Alizarin red staining, alkaline phosphatase (ALP) staining, ALP activity assay, and calcium content assay also suggested that LEF1-AS1 overexpression promoted calcium deposition in VSMCs. However, vaspin treatment abolished this phenomenon. Mechanistically, LEF1-AS1 markedly decreased phosphorylated YAP level, while vaspin reversed LEF1-AS1-induced phosphorylated YAP decline. Our results revealed that LEF1-AS1 accelerated the osteogenic differentiation of VSMCs by regulating the Hippo/YAP pathway, while vaspin eliminated the LEF1-AS1-meditated VSMCs osteogenic phenotype switch.
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Li RY, Qin Q, Yang HC, Wang YY, Mi YX, Yin YS, Wang M, Yu CJ, Tang Y. TREM2 in the pathogenesis of AD: a lipid metabolism regulator and potential metabolic therapeutic target. Mol Neurodegener 2022; 17:40. [PMID: 35658903 PMCID: PMC9166437 DOI: 10.1186/s13024-022-00542-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 05/09/2022] [Indexed: 12/13/2022] Open
Abstract
Triggering receptor expressed on myeloid cells 2 (TREM2) is a single-pass transmembrane immune receptor that is mainly expressed on microglia in the brain and macrophages in the periphery. Recent studies have identified TREM2 as a risk factor for Alzheimer’s disease (AD). Increasing evidence has shown that TREM2 can affect lipid metabolism both in the central nervous system (CNS) and in the periphery. In the CNS, TREM2 affects the metabolism of cholesterol, myelin, and phospholipids and promotes the transition of microglia into a disease-associated phenotype. In the periphery, TREM2 influences lipid metabolism by regulating the onset and progression of obesity and its complications, such as hypercholesterolemia, atherosclerosis, and nonalcoholic fatty liver disease. All these altered lipid metabolism processes could influence the pathogenesis of AD through several means, including affecting inflammation, insulin resistance, and AD pathologies. Herein, we will discuss a potential pathway that TREM2 mediates lipid metabolism to influence the pathogenesis of AD in both the CNS and periphery. Moreover, we discuss the possibility that TREM2 may be a key factor that links central and peripheral lipid metabolism under disease conditions, including AD. This link may be due to impacts on the integrity of the blood–brain barrier, and we introduce potential pathways by which TREM2 affects the blood–brain barrier. Moreover, we discuss the role of lipids in TREM2-associated treatments for AD. We propose some potential therapies targeting TREM2 and discuss the prospect and limitations of these therapies.
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Affiliation(s)
- Rui-Yang Li
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Qi Qin
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Han-Chen Yang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Ying-Ying Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ying-Xin Mi
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Yun-Si Yin
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Meng Wang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Chao-Ji Yu
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Yi Tang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China.
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Adipokine human Resistin promotes obesity-associated inflammatory intervertebral disc degeneration via pro-inflammatory cytokine cascade activation. Sci Rep 2022; 12:8936. [PMID: 35624126 PMCID: PMC9142523 DOI: 10.1038/s41598-022-12793-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 05/05/2022] [Indexed: 12/12/2022] Open
Abstract
Adipokine human Resistin (hResistin), is known to be associated with insulin resistance and secrete low-grade pro-inflammatory cytokines in obesity. Although studies on low-grade inflammation of adipokine hResistin are known, studies on the effects and mechanisms of intervertebral disc degeneration (IVDD) are still lacking. Thus, we investigated the adipokine hResistin with or without pro-inflammatory cytokine IL-1β in intervertebral disc (IVD) cells such as human annulus fibrosus (hAF) and nucleus pulposus (hNP). The protein expression changes in IL-1β, IL-6, IL-8, MMP-1, MMP-3, and MMP-13, induced by the combined-hResistin and IL-1β stimulation on hAF cells, was significantly greater than that of the same induced by mono-IL-1β stimulation. Similarly, in the case of the protein expression change of inflammatory mediators induced by the combined-hResistin and IL-1β stimulation on hNP cells was also significantly greater than that of the same induced by mono-IL-1β stimulation. These results improve understanding of hResistin on inflammatory IVDD but also with other obesity-related inflammatory diseases.
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Qian K, Yan X, Xu C, Fang Y, Ma M. Association Between Circulating Retinol-Binding Protein 4 and Adverse Cardiovascular Events in Stable Coronary Artery Disease. Front Cardiovasc Med 2022; 9:829347. [PMID: 35369314 PMCID: PMC8968078 DOI: 10.3389/fcvm.2022.829347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
Background The predictive role of retinol-binding protein 4 (RBP4) in the adverse prognosis of patients with stable coronary artery disease (CAD) has not been well-defined. We thus conducted this cohort study to investigate the association between circulating RBP4 level and major adverse cardiovascular events (MACEs) in Chinese patients with stable CAD. Methods Patients with stable CAD and serum RBP4 concentration measurement at admission between July 2012 and January 2015 were included. The primary outcome in this study was incident MACEs, which included acute coronary syndrome, heart failure, stroke, peripheral vascular disease, and cardiovascular death. Cox proportional hazards regression was adopted to investigate the association between RBP4 and the incidence of MACEs. Results A total of 840 patients with stable CAD were analyzed. The mean age of patients was 61.2 ± 15.9 years, and 56.1% of them were men. After a median follow-up of 2.3 years, 129 MACEs were observed. Compared to participants exposed to the first quartile of serum RBP4 level, those in the second, the third, and the fourth quartiles had associated hazard ratios (HRs) of 2.38 [95% confidence interval (CI): 1.33-4.26], 2.35 (95% CI: 1.31-4.21), and 2.27 (95% CI: 1.28-4.04) after adjusted for confounders, respectively. Every 5 μg/ml increment in serum RBP4 concentration was associated with an adjusted HR of 1.13 (95% CI: 1.05-1.22) for the occurrence of MACEs. Subgroup analyses suggested no significant modifying effects of baseline characteristics for the association between RBP4 and MACEs in patients with stable CAD. Conclusion Our finding suggested that the higher circulating RBP4 level was significantly associated with an increased risk of MACEs in patients with stable CAD.
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Affiliation(s)
- Ke Qian
- Department of Emergency, Liyang People's Hospital, Liyang, China
| | - Xin Yan
- Department of General Surgery, Liyang People's Hospital, Liyang, China
| | - Cheng Xu
- Department of Emergency, Liyang People's Hospital, Liyang, China
| | - Yijia Fang
- Department of Emergency, Liyang People's Hospital, Liyang, China
| | - Moshuang Ma
- Department of Emergency, Liyang People's Hospital, Liyang, China
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Association of Leptin Levels and Disease Activity in Patients with Early Rheumatoid Arthritis. Arch Med Res 2021; 52:544-553. [PMID: 33632629 DOI: 10.1016/j.arcmed.2021.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/27/2020] [Accepted: 02/04/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Previous studies have reported a link between metabolic parameters and disease activity in rheumatoid arthritis (RA), although the evidence is limited in early RA. We aimed to investigate the relationship between disease activity and adipocytokine levels in subjects with early RA. METHODS Forty-seven patients with early RA (symptom duration ≤12 months) were enrolled. Disease activity was determined by DAS28-CRP. Patients were treated with DMARDs according to the EULAR recommendations. Subjects were tested before and five months after treatment. RESULTS Early RA patients with high disease activity (DAS28-CRP > 4.9) had greater BMI (31.2 ± 6.8 kg/m2 vs. 26.7 ± 4.1 kg/m2; p = 0.006) and higher leptin levels (14.62 ± 15.60 ng/mL vs. 7.82 ± 8.00 ng/mL; p = 0.048). Levels of other adipocytokines were not significantly different. Leptin levels were similar in subjects with mild/moderate disease activity and controls. DAS28-CRP was correlated with leptin (r = 0.303, p = 0.039). Leptin levels decreased significantly after treatment (from 10.86 ± 12.34 ng/mL to 9.22 ± 9.29 ng/mL; p = 0.047) along with insulin levels (from 13.68 ± 21.90 mU/L to 7.09 ± 4.72 mU/L; p = 0.010) and HOMA-IR (from 4.39 ± 9.53 to 1.70 ± 1.38; p = 0.012). HDL cholesterol levels increased (from 41 ± 10 mg/dL48 ± 10 mg/dL; p <0.001). CONCLUSION Leptin levels were associated with disease activity in patients with early RA and these levels decreased after treatment with DMARDs. Further research is needed to elicit leptin's role to regulate disease activity in early RA.
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Li X, Sun F, Lu J, Zhang J, Wang J, Zhu H, Gu M, Ma J. Osteoclasts May Affect Glucose Uptake-Related Insulin Resistance by Secreting Resistin. Diabetes Metab Syndr Obes 2021; 14:3461-3470. [PMID: 34366677 PMCID: PMC8336992 DOI: 10.2147/dmso.s316964] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/06/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Bone may play a role in the modulation of insulin sensitivity. Insulin resistance can be caused by increased resistin. However, whether osteoclasts affect the insulin resistance via resistin remains unclear. In the present study, we show the expression of resistin in osteoclasts and the possible underlying role of resistin on glucose uptake-related insulin resistance in vitro. METHODS Conditioned mediums (CM) were collected from Raw264.7 cells treated without (CCM) or with RANKL (CM3, treated with RANKL for 3 days; CM5, treated with RANKL for 5 days) and transfected with control or resistin siRNA (CMsiRNA). The osteoclast formation was examined by tartrate resistant acid phosphatase (TRAP) staining. C2C12 myoblasts were cultured with the CM or CMsiRNA. Glucose uptake was evaluated by 2-NBDG fluorescence intensity. Resistin expression was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay. Statistical analysis was performed by an independent two sample t-test or one-way ANOVA. RESULTS The 2-NBDG fluorescence intensity was higher in C2C12 cells treated with CCM compared to those that received CM3 and CM5 (p < 0.05). Resistin mRNA and protein expressions were both increased in RAW264.7 cells treated with RANKL for 3 days and 5 days compared with those cells without RANKL administration. The 2-NBDG fluorescence intensities in C2C12 cells treated with CMsiRNA and CM5+Anti-resistin antibody were significantly higher than those cultured with CM5 (p < 0.05). CONCLUSION Osteoclasts may promote glucose uptake-related insulin resistance by secreting resistin.
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Affiliation(s)
- Xiangqi Li
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Fei Sun
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Jiancan Lu
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Jichen Zhang
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Jingnan Wang
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Hongling Zhu
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Mingjun Gu
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
| | - Junhua Ma
- Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, 200135, People’s Republic of China
- Correspondence: Junhua Ma Department of Endocrinology, Shanghai Gongli Hospital, The Second Military Medical University, Miaopu Road 219, Shanghai, 200135, People’s Republic of ChinaTel +86 21 58858730 Email
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Sachan A, Singh A, Shukla S, Aggarwal S, Mir I, Yadav R. Serum Adipocytokines Levels and Their Association with Insulin Sensitivity in Morbidly Obese Individuals Undergoing Bariatric Surgery. J Obes Metab Syndr 2020; 29:303-312. [PMID: 33380577 PMCID: PMC7789018 DOI: 10.7570/jomes20090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/29/2020] [Accepted: 10/29/2020] [Indexed: 12/29/2022] Open
Abstract
Background Obese adipose tissue secretes a variety of adipocytokines that act as metabolic regulators with complex mechanisms. Our objective was to compare serum concentration of a panel of adipocytokines between obese and non-obese individuals and identify any distinct patterns correlating with insulin sensitivity in obesity. Methods We designed a cross-sectional study among obese (body mass index [BMI] ≥30 kg/m2, n=62) and non-obese (BMI <25 kg/m2, n=32) individuals to compare circulating levels of the adipokines, such as adiponectin and resistin in conjunction with the measurement of the levels of inflammatory cytokines including C-reactive protein (CRP), interleukin (IL)-6, IL-8, monocyte chemoattractant protein (MCP)-1, and tumor necrosis factor (TNF)-α using Luminex multiplex immunoassay with drop array technology. Correlations between circulating adipocytokine levels and those of multiple well-established markers of insulin resistance including homeostatic model assessment of insulin resistance (HOMA-IR), homeostatic model assessment of β-cell function (HOMA-β) and quantitative insulin sensitivity check index were also established. Results CRP, IL-8, MCP-1, and TNF-α levels were higher in obese than non-obese individuals; the CRP and IL-8 differences were statistically significant. CRP correlated significantly with markers of insulin resistance (fasting plasma insulin, HOMA-IR, and QUICKI), and adiponectin correlated with HOMA-β in obese individuals. We divided the group of obese individuals on the basis of HOMA-IR levels into insulin-resistant (IR; HOMA-IR ≥2.5) and insulin-sensitive (IS; HOMA-IR <2.5) groups; and 43 out of 62 participants were IR despite comparable BMIs. An overall proinflammatory profile was compared between IR and IS obese, though the values were higher in IR obese but the difference was not significant. Conclusion Obesity is associated with a general inflammatory milieu and a crosstalk between adipocytokines and insulin resistance is complex as well as multifactorial.
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Affiliation(s)
- Astha Sachan
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Archna Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Sakshi Shukla
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Sandeep Aggarwal
- Department of Surgical Disciplines, All India Institute of Medical Sciences, New Delhi, India
| | - Ishfaq Mir
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Rakhee Yadav
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
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Bednarska S, Fryczak J, Siejka A. Serum β-Klotho concentrations are increased in women with polycystic ovary syndrome. Cytokine 2020; 134:155188. [DOI: 10.1016/j.cyto.2020.155188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/24/2020] [Accepted: 06/26/2020] [Indexed: 12/12/2022]
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Su X, Peng D. Emerging functions of adipokines in linking the development of obesity and cardiovascular diseases. Mol Biol Rep 2020; 47:7991-8006. [PMID: 32888125 DOI: 10.1007/s11033-020-05732-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/18/2020] [Indexed: 12/19/2022]
Abstract
Increasing evidence shows that obesity is the critical factor in shaping cardio-metabolic phenotypes. However, the pathogenic mechanisms remain incompletely clarified. According to the published reports, adipose tissue communicates with several diverse organs, such as heart, lungs, and kidneys through the secretion of various cytokines named adipokines. The adipocytes isolated from obese mice or humans are dysfunctional with aberrant production of pro-inflammatory adipokines, which subsequently induce both acute and chronic inflammatory reaction and facilitate the process of cardio-metabolic disorder complications. Furthermore, the microenvironment within adipose tissue under obese status also influence the secretion of adipokines. Recently, given that several important adipokines have been completely researched and causally involved in various diseases, we could make a conclusion that adipokines play an essential role in modulating the development of cardio-metabolic disorder diseases, whereas several novel adipokines continue to be explored and elucidated. In the present review, we summarized the current knowledge of the microenvironment of adipose tissue and the published mechanisms whereby adipocytes affects obesity and cardiovascular diseases. On the other hand, we also provide the evidence to elucidate the functions of adipokines in controlling and regulating the inflammatory reactions which contribute to obesity and cardiovascular disease.
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Affiliation(s)
- Xin Su
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, No. 139 Middle Renmin Road, Changsha, 410011, Hunan, China.,Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Daoquan Peng
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, No. 139 Middle Renmin Road, Changsha, 410011, Hunan, China.
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Hamjane N, Benyahya F, Nourouti NG, Mechita MB, Barakat A. Cardiovascular diseases and metabolic abnormalities associated with obesity: What is the role of inflammatory responses? A systematic review. Microvasc Res 2020; 131:104023. [PMID: 32485192 DOI: 10.1016/j.mvr.2020.104023] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/19/2020] [Accepted: 05/24/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Obesity is a chronic disease responsible for a high morbidity and mortality rate, with an increasing worldwide prevalence. Obesity is associated with immune responses characterized by chronic systemic inflammation. This article focuses on the mechanisms that explain the proposed link between obesity-associated diseases and inflammation. Also, it describes the role of inflammatory molecules in obesity-associated metabolic abnormalities. METHODS More than 200 articles were selected and consulted by an online English search using various electronic search databases. Predefined key-words for the pathogenesis of obesity-induced inflammation and associated diseases, as well as the role of various inflammatory molecules, were used. RESULTS We have summarized the data of the articles consulted in this research and we have found that obesity is associated with a low-grade inflammation resulting from the change of adipose tissue (AT). The AT produces a variety of inflammatory molecules called adipocytokines that are involved in the onset of systemic low-grade inflammation which is the link between obesity and associated-chronic abnormalities; such as insulin resistance, metabolic syndrome, cardiovascular disease (CVD), hypertension, diabetes, and some cancers. Also, we have searched all the inflammatory molecules involved in this pathogenesis and we have briefly described the role of 16 of them which are the most related to obesity-associated inflammation. The results have shown that there are inflammatory molecules that have a positive relationship with the pathogenesis of obesity-related diseases and others have a negative relationship with this pathogenesis. CONCLUSION Inflammation plays a crucial role in the development of various metabolic-abnormalities related to obesity. In this regard, the management of obesity may help reduce the risk of cardiovascular disease and other metabolic complications by inhibiting inflammatory mechanisms.
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Affiliation(s)
- Nadia Hamjane
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco.
| | | | - Naima Ghailani Nourouti
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
| | - Mohcine Bennani Mechita
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
| | - Amina Barakat
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
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Su X, Peng D. The exchangeable apolipoproteins in lipid metabolism and obesity. Clin Chim Acta 2020; 503:128-135. [PMID: 31981585 DOI: 10.1016/j.cca.2020.01.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/15/2020] [Accepted: 01/17/2020] [Indexed: 12/29/2022]
Abstract
Dyslipidemia, characterized by increased plasma levels of low-density lipoprotein cholesterol (LDL-C), very low-density lipoprotein cholesterol (VLDL-C), triglyceride (TG), and reduced plasma levels of high-density lipoprotein cholesterol (HDL-C), is confirmed as a hallmark of obesity and cardiovascular diseases (CVD), posing serious risks to the future health of humans. Thus, it is important to understand the molecular metabolism of dyslipidemia, which could help reduce the morbidity and mortality of obesity and CVD. Currently, several exchangeable apolipoproteins, such as apolipoprotein A1 (ApoA1), apolipoprotein A5 (ApoA5), apolipoprotein E (ApoE), and apolipoprotein C3 (ApoC3), have been verified to exert vital effects on modulating lipid metabolism and homeostasis both in plasma and in cells, which consequently affect dyslipidemia. In the present review, we summarize the findings of the effect of exchangeable apolipoproteins on affecting lipid metabolism in adipocytes and hepatocytes. Furthermore, we also provide new insights into the mechanisms by which the exchangeable apolipoproteins influence the pathogenesis of dyslipidemia and its related cardio-metabolic disorders.
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Affiliation(s)
- Xin Su
- Department of Cardiovascular Medicine, the Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Daoquan Peng
- Department of Cardiovascular Medicine, the Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
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Adiponectin, Obesity, and Cancer: Clash of the Bigwigs in Health and Disease. Int J Mol Sci 2019; 20:ijms20102519. [PMID: 31121868 PMCID: PMC6566909 DOI: 10.3390/ijms20102519] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/16/2019] [Accepted: 05/17/2019] [Indexed: 02/07/2023] Open
Abstract
Adiponectin is one of the most important adipocytokines secreted by adipocytes and is called a “guardian angel adipocytokine” owing to its unique biological functions. Adiponectin inversely correlates with body fat mass and visceral adiposity. Identified independently by four different research groups, adiponectin has multiple names; Acrp30, apM1, GBP28, and AdipoQ. Adiponectin mediates its biological functions via three known receptors, AdipoR1, AdipoR2, and T-cadherin, which are distributed throughout the body. Biological functions of adiponectin are multifold ranging from anti-diabetic, anti-atherogenic, anti-inflammatory to anti-cancer. Lower adiponectin levels have been associated with metabolic syndrome, type 2 diabetes, insulin resistance, cardiovascular diseases, and hypertension. A plethora of experimental evidence supports the role of obesity and increased adiposity in multiple cancers including breast, liver, pancreatic, prostrate, ovarian, and colorectal cancers. Obesity mediates its effect on cancer progression via dysregulation of adipocytokines including increased production of oncogenic adipokine leptin along with decreased production of adiponectin. Multiple studies have shown the protective role of adiponectin in obesity-associated diseases and cancer. Adiponectin modulates multiple signaling pathways to exert its physiological and protective functions. Many studies over the years have shown the beneficial effect of adiponectin in cancer regression and put forth various innovative ways to increase adiponectin levels.
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Sohrabji F, Okoreeh A, Panta A. Sex hormones and stroke: Beyond estrogens. Horm Behav 2019; 111:87-95. [PMID: 30713101 PMCID: PMC6527470 DOI: 10.1016/j.yhbeh.2018.10.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022]
Abstract
Stroke risk and poor stroke outcomes in postmenopausal women have usually beeen attributed to decreased levels of estrogen. However, two lines of evidence suggest that this hormone may not be solely responsible for elevated stroke risk in this population. First, the increased risk for CVD and stroke occurs much earlier than menopause at a time when estrogen levels are not yet reduced. Second, estrogen therapy has not successfully reduced stroke risk in all studies. Other sex hormones may therefore also contribute to stroke risk. Prior to menopause, levels of the gonadotrophin Follicle Stimulating Hormone (FSH) are elevated while levels of the gonadal peptide inhibin are lowered, indicating an overall decrease in ovarian reserve. Similarly, reduced estrogen levels at menopause significantly increase the ratio of androgens to estrogens. In view of the evidence that androgens may be unfavorable for CVD and stroke, this elevated ratio of testosterone to estrogen may also contribute to the postmenopause-associated stroke risk. This review synthesizes evidence from different clinical populations including natural menopause, surgical menopause, women on chemotherapy, and preclinical stroke models to dissect the role of ovarian hormones and stroke risk and outcomes.
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Affiliation(s)
- Farida Sohrabji
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX 77807, United States of America.
| | - Andre Okoreeh
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX 77807, United States of America
| | - Aditya Panta
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX 77807, United States of America
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Lizneva D, Rahimova A, Kim SM, Atabiekov I, Javaid S, Alamoush B, Taneja C, Khan A, Sun L, Azziz R, Yuen T, Zaidi M. FSH Beyond Fertility. Front Endocrinol (Lausanne) 2019; 10:136. [PMID: 30941099 PMCID: PMC6433784 DOI: 10.3389/fendo.2019.00136] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/13/2019] [Indexed: 12/24/2022] Open
Abstract
The traditional view of follicle-stimulating hormone (FSH) as a reproductive hormone is changing. It has been shown that FSH receptors (FSHRs) are expressed in various extra-gonadal tissues and mediate the biological effects of FSH at those sites. Molecular, animal, epidemiologic, and clinical data suggest that elevated serum FSH may play a significant role in the evolution of bone loss and obesity, as well as contributing to cardiovascular and cancer risk. This review summarizes recent data on FSH action beyond reproduction.
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Affiliation(s)
- Daria Lizneva
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Alina Rahimova
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Se-Min Kim
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ihor Atabiekov
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Seher Javaid
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Bateel Alamoush
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Charit Taneja
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ayesha Khan
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Li Sun
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ricardo Azziz
- Academic Health and Hospital Affairs, State University of New York, Albany, NY, United States
| | - Tony Yuen
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mone Zaidi
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Adiponectin: A potential therapeutic target for metabolic syndrome. Cytokine Growth Factor Rev 2018; 39:151-158. [PMID: 29395659 DOI: 10.1016/j.cytogfr.2018.01.004] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 01/11/2018] [Indexed: 12/20/2022]
Abstract
Adiponectin is an important adipocytokine secreted chiefly by fat containing adipocytes, and plays a crucial role in glucose and lipid metabolism, inflammation and oxidative stress. Alterations in adiponectin levels have been shown to directly affect lipid and glucose metabolism that further increase the synthesis of lipids, free fatty acids and inflammatory cytokines. Changes in adiponectin levels also contribute to insulin resistance, obesity, cardiovascular diseases and type 2 diabetes. In the present review, we provide a comprehensive evaluation of the role of adiponectin and its molecular mechanisms in metabolic syndrome. Clinical improvement in adiponectin levels have been shown to positively modulate lipid and glucose metabolism, thus further substantiating its role in regulation of lipid and glucose metabolism. Currently adiponectin is being investigated as a potential therapeutic target for metabolic syndrome, although more research is required to understand the underlying mechanisms controlling adiponectin levels, including dietary and lifestyle interventions, that may target adiponectin as a therapeutic intervention in metabolic syndrome.
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Gundala NK, Naidu VG, Das UN. Amelioration of streptozotocin-induced type 2 diabetes mellitus in Wistar rats by arachidonic acid. Biochem Biophys Res Commun 2018; 496:105-113. [DOI: 10.1016/j.bbrc.2018.01.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/02/2018] [Indexed: 12/24/2022]
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Crawford ED, Schally AV, Pinthus JH, Block NL, Rick FG, Garnick MB, Eckel RH, Keane TE, Shore ND, Dahdal DN, Beveridge TJR, Marshall DC. The potential role of follicle-stimulating hormone in the cardiovascular, metabolic, skeletal, and cognitive effects associated with androgen deprivation therapy. Urol Oncol 2017; 35:183-191. [PMID: 28325650 DOI: 10.1016/j.urolonc.2017.01.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 01/20/2017] [Accepted: 01/24/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE To explore how follicle-stimulating hormone (FSH) may contribute to cardiovascular, metabolic, skeletal, and cognitive events in men treated for prostate cancer, with various forms of androgen deprivation therapy (ADT). MATERIALS AND METHODS A colloquium of prostate cancer experts was convened in May 2015, to discuss the role of FSH in the development of unwanted effects associated with ADT. Subsequently, a literature review (Medline, PubMed, and relevant congress abstract databases) was performed to further explore and evaluate the collected evidence. RESULTS It has become evident that, in the setting of ADT, FSH can promote the development of atherosclerotic plaque formation, metabolic syndrome, and insulin resistance. Data also suggest that FSH is an important mediator of bone remodeling, particularly bone resorption, and thereby increases the risk for bone fracture. Additional evidence implicates a role for FSH in bone metastasis as well. The influence of FSH on ADT-induced cognitive deficits awaits further elucidation; however, the possibility that FSH may be involved therein cannot be ruled out. CONCLUSIONS The widespread molecular and physiological consequences of FSH system activation in normal and pathological conditions are becoming better understood. Progress in this area has been achieved by the development of additional investigative and clinical measures to better evaluate specific adverse effects. More research is needed on FSH function in the development of cancer as well as its association with cardiovascular, metabolic, musculoskeletal, and cognitive effects in ADT.
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Affiliation(s)
- E David Crawford
- Department of Urologic Oncology, School of Medicine, University of Colorado, Denver, Denver, CO.
| | - Andrew V Schally
- Endocrine, Polypeptide and Cancer Institute, Miami Veterans Affairs Medical Center, Miami, FL; Department of Pathology, University of Miami School of Medicine, Miami, FL; Department of Medicine, University of Miami School of Medicine, Miami, FL
| | - Jehonathan H Pinthus
- Department of Surgery, Juravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada
| | - Norman L Block
- Endocrine, Polypeptide and Cancer Institute, Miami Veterans Affairs Medical Center, Miami, FL; Department of Pathology, University of Miami School of Medicine, Miami, FL; Department of Medicine, University of Miami School of Medicine, Miami, FL
| | - Ferenc G Rick
- Endocrine, Polypeptide and Cancer Institute, Miami Veterans Affairs Medical Center, Miami, FL; Department of Urology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL
| | - Marc B Garnick
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Robert H Eckel
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado, Denver, CO
| | - Thomas E Keane
- Department of Urology, Medical University of South Carolina, Charleston, SC
| | - Neal D Shore
- Carolina Urologic Research Center, Myrtle Beach, SC
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Noor R, Rini EA, Yerizel E. Retinol binding protein 4, obesity, and insulin resistance in adolescents. PAEDIATRICA INDONESIANA 2017. [DOI: 10.14238/pi57.1.2017.1-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background Obesity is a global problem. Even in poor and developing countries, obesity has reached alarming levels. In childhood, obesity may lead to insulin resistance. Retinol binding protein (RBP4), secreted primarily by liver and adipose tissues, was recently proposed as a link between obesity and insulin resistance. The role of RBP4 in pediatric obesity and its relationship with insulin resistance have not been well elucidated.Objective To compare RBP4 levels in obese and lean adolescents and to assess for a relationship between RBP4 levels and insulin resistance. Method This cross-sectional study was conducted in three senior high schools in Padang, West Sumatera, Indonesia. Subjects were adolescents aged 14-18 years, who were obese or normal weight (n=56). We measured subjects’ body mass index (BMI) and serum RBP4 concentrations. Insulin resistance was assessed using the homeostasis model assessment of insulin resistance (HOMA-IR) index.Results Similar RBP4 levels were found in the obese and normoweight groups (P>0.05). Higher RBP4 levels were found in the insulin resistant compared to the non-insulin resistant group, but the difference was not significant (P > 0.05).Conclusion There is no significant difference in mean RBP4 levels in obese adolescents compared to normoweight adolescents. Nor are mean RBP4 levels significantly different between obese adolescents with and without insulin resistance.
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Chen H, Wang S, Zhang H, Nice EC, Huang C. Nicotinamide phosphoribosyltransferase (Nampt) in carcinogenesis: new clinical opportunities. Expert Rev Anticancer Ther 2016; 16:827-38. [PMID: 27186719 DOI: 10.1080/14737140.2016.1190649] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Nicotinamide phosphoribosyltransferase (Nampt) is the rate-limiting enzyme that catalyzes the first step in the mammalian nicotinamide adenine dinucleotide (NAD) salvage pathway. Aberrant NAD metabolism was associated with oncogenic signal transduction, suggesting the critical roles of Nampt in tumorigenesis and metastasis. Additionally, Nampt can be secreted out of the cell, and this extracellular form of Nampt (eNampt) was shown to induce inflammation and angiogenesis due to its cytokine activity, which may also be involved in carcinogenesis. AREAS COVERED This article reviews recent advances in the studies of Nampt in carcinogenesis, with a special highlight on Nampt inhibitors and future clinical application, including cancer diagnosis, prognosis and therapy. Expert commentary: Nampt not only maintains the balance of cellular metabolism, but also has a profound influence on multiple aspects of carcinogenesis. Therefore, elucidation of these mechanisms opens the door for future clinical applications targeting this protein. Additional studies are needed to address important questions including the relationship between extracellular Nampt and carcinogenesis.
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Affiliation(s)
- Hang Chen
- a Key Laboratory of Tropical Diseases and Translational Medicine of Ministry of Education & Department of Neurology , The Affiliated Hospital of Hainan Medical College , Haikou , China
| | - Shiyu Wang
- a Key Laboratory of Tropical Diseases and Translational Medicine of Ministry of Education & Department of Neurology , The Affiliated Hospital of Hainan Medical College , Haikou , China
| | - Haiyuan Zhang
- a Key Laboratory of Tropical Diseases and Translational Medicine of Ministry of Education & Department of Neurology , The Affiliated Hospital of Hainan Medical College , Haikou , China
| | - Edouard C Nice
- b Department of Biochemistry and Molecular Biology , Monash University , Clayton , Australia
| | - Canhua Huang
- c State Key Laboratory for Biotherapy and Cancer Center, West China Hospital , Sichuan University, and Collaborative Innovation Center of Biotherapy , Chengdu , China
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Jung CH, Lee MJ, Kang YM, Lee YL, Seol SM, Yoon HK, Kang SW, Lee WJ, Park JY. C1q/TNF-related protein-9 inhibits cytokine-induced vascular inflammation and leukocyte adhesiveness via AMP-activated protein kinase activation in endothelial cells. Mol Cell Endocrinol 2016; 419:235-43. [PMID: 26523509 DOI: 10.1016/j.mce.2015.10.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/02/2015] [Accepted: 10/25/2015] [Indexed: 12/25/2022]
Abstract
Although recent studies have reported cardioprotective effects of C1q/TNF-related protein 9 (CTRP9), the closet adiponectin paralog, its role on cytokine-induced endothelial inflammation is unknown. We investigated whether CTRP9 prevented inflammatory cytokine-induced nuclear factor-kappa B (NF-κB) activation and inhibited the expression of adhesion molecules and a chemokine in the vascular endothelial cell. We used human aortic endothelial cells (HAECs) to examine the effects of CTRP9 on NF-κB activation and the expression of NF-κB-mediated genes, including intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and monocyte chemoattractant protein-1 (MCP-1). Tumor necrosis factor alpha (TNFα) was used as a representative proinflammatory cytokine. In an adhesion assay using THP-1 cells, CTRP9 reduced TNFα-induced adhesion of monocytes to HAECs. Treatment with CTRP9 significantly decreased TNFα-induced activation of NF-κB, as well as the expression of ICAM-1, VCAM-1, and MCP-1. In addition, treatment with CTRP9 significantly increased the phosphorylation of AMP-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC), the downstream target of AMPK. The inhibitory effect of CTRP9 on the expression of ICAM-1, VCAM-1, and MCP-1 and monocyte adhesion to HAECs was abolished after transfection with an AMPKα1-specific siRNA. Our study is the first to demonstrate that CTRP9 attenuates cytokine-induced vascular inflammation in endothelial cells mediated by AMPK activation.
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Affiliation(s)
- Chang Hee Jung
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Min Jung Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yu Mi Kang
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yoo La Lee
- Asan Institute of Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - So Mi Seol
- Asan Institute of Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hae Kyeong Yoon
- Asan Institute of Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang-Wook Kang
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Woo Je Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joong-Yeol Park
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Gondim OS, de Camargo VTN, Gutierrez FA, Martins PFDO, Passos MEP, Momesso CM, Santos VC, Gorjão R, Pithon-Curi TC, Cury-Boaventura MF. Benefits of Regular Exercise on Inflammatory and Cardiovascular Risk Markers in Normal Weight, Overweight and Obese Adults. PLoS One 2015; 10:e0140596. [PMID: 26474157 PMCID: PMC4608693 DOI: 10.1371/journal.pone.0140596] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/27/2015] [Indexed: 12/12/2022] Open
Abstract
Obesity is a worldwide epidemic that increases the risk of several well-known co-morbidities. There is a complicated relationship between adipokines and low-grade inflammation in obesity and cardiovascular disease (CVD). Physical activity practices have beneficial health effects on obesity and related disorders such as hypertension and dyslipidemia. We investigated the effects of 6 and 12 months of moderate physical training on the levels of adipokines and CVD markers in normal weight, overweight and obese volunteers. The 143 participants were followed up at baseline and after six and twelfth months of moderate regular exercise, 2 times a week, for 12 months. The volunteers were distributed into 3 groups: Normal Weight Group (NWG,), Overweight Group (OVG) and Obese Group (OBG). We evaluated blood pressure, resting heart rate, anthropometric parameters, body composition, fitness capacity (VO2max and isometric back strength), cardiovascular markers (CRP, total cholesterol, LDL-c, HDL-c, homocysteine) and adipokine levels (leptin, adiponectin, resistin, IL-6 and TNF-alpha). There were no significant changes in anthropometric parameters and body composition in any of the groups following 6 and 12 months of exercise training. Leptin, IL-6 levels and systolic blood pressure were significantly elevated in OBG before the training. Regular exercise decreased HDL-c, leptin, adiponectin and resistin levels and diastolic blood pressure in OVG. In OBG, exercise diminished HDL-c, homocysteine, leptin, resistin, IL-6, adiponectin. Moderate exercise had no effect on the body composition; however, exercise did promote beneficial effects on the low-grade inflammatory state and CVD clinical markers in overweight and obese individuals.
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Affiliation(s)
- Olivia Santos Gondim
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Vinicius Tadeu Nunes de Camargo
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Fernanda Almeida Gutierrez
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Patricia Fátima de Oliveira Martins
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Maria Elizabeth Pereira Passos
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Cesar Miguel Momesso
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Vinicius Coneglian Santos
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil
| | - Renata Gorjão
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Tania Cristina Pithon-Curi
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Maria Fernanda Cury-Boaventura
- Institute of Physical Activity and Sports Sciences, Post-Graduate Program in Human Movement Science, Cruzeiro do Sul University, São Paulo, SP, Brazil
- * E-mail:
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Hill AA, Anderson-Baucum EK, Kennedy AJ, Webb CD, Yull FE, Hasty AH. Activation of NF-κB drives the enhanced survival of adipose tissue macrophages in an obesogenic environment. Mol Metab 2015; 4:665-77. [PMID: 26779432 PMCID: PMC4588436 DOI: 10.1016/j.molmet.2015.07.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/10/2015] [Accepted: 07/18/2015] [Indexed: 01/09/2023] Open
Abstract
Objective Macrophage accumulation in adipose tissue (AT) during obesity contributes to inflammation and insulin resistance. Recruitment of monocytes to obese AT has been the most studied mechanism explaining this accumulation. However, recent evidence suggests that recruitment-independent mechanisms may also regulate pro-inflammatory AT macrophage (ATM) numbers. The role of increased ATM survival during obesity has yet to be explored. Results We demonstrate that activation of apoptotic pathways is significantly reduced in ATMs from diet-induced and genetically obese mice. Concurrently, pro-survival Bcl-2 family member protein levels and localization to the mitochondria is elevated in ATMs from obese mice. This increased pro-survival signaling was associated with elevated activation of the transcription factor, NF-κB, and increased expression of its pro-survival target genes. Finally, an obesogenic milieu increased ATM viability only when NF-κB signaling pathways were functional. Conclusions Our data demonstrate that obesity promotes survival of inflammatory ATMs, possibly through an NF-κB-regulated mechanism. Macrophage apoptosis is decreased in obese adipose tissue. ATMs from obese mice display increased mitochondrial localization of Bcl-2. The pro-survival targets of NF-κB are increased in ATMs from obese mice. NF-κB activation in ATMs during metabolic stimulation increases their survival. Decreased ATM apoptosis contributes to macrophage accumulation in obesity.
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Affiliation(s)
- Andrea A Hill
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, United States
| | - Emily K Anderson-Baucum
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, United States
| | - Arion J Kennedy
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, United States
| | - Corey D Webb
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, United States
| | - Fiona E Yull
- Department of Cancer Biology, Vanderbilt University School of Medicine, United States
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, United States; Department of Veterans Affairs, Tennessee Valley Healthcare System, United States
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Erturk A, Cure MC, Cure E, Kurt A, Cicek AC, Yuce S. Clinical potential of resistin as a novel prognostic biomarker for cellulitis. Exp Ther Med 2015. [PMID: 26136908 DOI: 10.3892/etm.2015.2311.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Cellulitis is an acute, subacute or chronic inflammation of the dermis and subdermal tissues, which is typically caused by bacteria, although other causes are possible. The present study aimed to evaluate the association between resistin levels and the recovery time of patients with cellulitis. In addition, the effect of resistin and insulin resistance on the prognosis of cellulitis was investigated. In total, 52 patients with cellulitis (male, 21; female, 31) and an age-matched group of 42 healthy individuals (male, 18; female, 24) were included in the study. The levels of serum resistin, fasting plasma glucose (FPG), homeostasis model assessment-insulin resistance (HOMA-IR), C-reactive protein (CRP) and other biochemical parameters were compared between the groups. The mean resistin levels in the cellulitis and control groups were 9.4±5.3 and 5.8±3.1 ng/ml, respectively. The levels of resistin, FPG, HOMA-IR and CRP were significantly higher in the cellulitis group compared with the control group (P<0.001). Furthermore, the mean recovery time of the patients with cellulitis was 21.2±5.6 days. Thus, increased levels of resistin (P=0.002) and HOMA-IR (P=0.005) could be used as predictive factors for the recovery time. The enhanced levels of resistin and HOMA-IR were shown to correlate with the high CRP levels in the cellulitis group. Therefore, the results indicated that increased levels of resistin may function as a prognostic marker for cellulitis.
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Affiliation(s)
- Ayse Erturk
- Department of Infectious Disease, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - Medine Cumhur Cure
- Department of Biochemistry, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - Erkan Cure
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - Aysel Kurt
- Department of Thoracic Surgery, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - Aysegul Copur Cicek
- Department of Microbiology, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - Suleyman Yuce
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
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Urinary proteomic biomarkers to predict cardiovascular events. Proteomics Clin Appl 2015; 9:610-7. [DOI: 10.1002/prca.201400195] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/21/2015] [Accepted: 03/16/2015] [Indexed: 12/29/2022]
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26
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Hong ES, Lim C, Choi HY, Ku EJ, Kim KM, Moon JH, Lim S, Park KS, Jang HC, Choi SH. The amount of C1q-adiponectin complex is higher in the serum and the complex localizes to perivascular areas of fat tissues and the intimal-medial layer of blood vessels of coronary artery disease patients. Cardiovasc Diabetol 2015; 14:50. [PMID: 25956582 PMCID: PMC4431607 DOI: 10.1186/s12933-015-0209-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 04/09/2015] [Indexed: 01/01/2023] Open
Abstract
Background The complement component C1q triggers activation of the classical immune pathway and can bind to adiponectin (APN). Recently, some studies have been reported that serum C1q-APN/total APN ratio correlates with atherosclerosis and coronary artery disease (CAD). We assessed the relationships between C1q related variables and the severity of CAD, and investigated the localization of the C1q–APN complex. Methods The sample included 153 subjects comprising healthy controls and patients with subclinical or overt CAD. We measured the serum concentrations of C1q, total APN, and high-molecular weight (HMW)-APN, and the amount of C1q–APN complex. We identified the sites of C1q–APN complex deposition in various adipose tissues and blood vessels. Results Serum concentrations of C1q and HMW-APN and the C1q/HMW-APN ratio were independently associated with the severity of coronary stenosis. The amount of C1q–APN complex was significantly higher in patients with CAD compared with controls. C1q and APN co-localized in perivascular areas of subcutaneous, visceral, and pericardial fat tissues, and the internal mammary artery of patients with severe CAD. Conclusions Serum C1q concentration and the C1q/HMW-APN ratio were independent markers of coronary artery stenosis. The amount of C1q–APN complex was significantly greater in serum from CAD patients. C1q and APN co-localized to perivascular areas in adipose tissue and blood vessels. The association between the increased amount of the C1q–APN complex and CAD should be investigated further.
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Affiliation(s)
- Eun Shil Hong
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea.
| | - Cheong Lim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, South Korea.
| | - Hye Yeon Choi
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea.
| | - Eu Jeong Ku
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea.
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Jae Hoon Moon
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Soo Lim
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Hak Chul Jang
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
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ERTURK AYSE, CURE MEDINECUMHUR, CURE ERKAN, KURT AYSEL, CICEK AYSEGULCOPUR, YUCE SULEYMAN. Clinical potential of resistin as a novel prognostic biomarker for cellulitis. Exp Ther Med 2015; 9:1875-1880. [PMID: 26136908 PMCID: PMC4471808 DOI: 10.3892/etm.2015.2311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 02/11/2015] [Indexed: 02/07/2023] Open
Abstract
Cellulitis is an acute, subacute or chronic inflammation of the dermis and subdermal tissues, which is typically caused by bacteria, although other causes are possible. The present study aimed to evaluate the association between resistin levels and the recovery time of patients with cellulitis. In addition, the effect of resistin and insulin resistance on the prognosis of cellulitis was investigated. In total, 52 patients with cellulitis (male, 21; female, 31) and an age-matched group of 42 healthy individuals (male, 18; female, 24) were included in the study. The levels of serum resistin, fasting plasma glucose (FPG), homeostasis model assessment-insulin resistance (HOMA-IR), C-reactive protein (CRP) and other biochemical parameters were compared between the groups. The mean resistin levels in the cellulitis and control groups were 9.4±5.3 and 5.8±3.1 ng/ml, respectively. The levels of resistin, FPG, HOMA-IR and CRP were significantly higher in the cellulitis group compared with the control group (P<0.001). Furthermore, the mean recovery time of the patients with cellulitis was 21.2±5.6 days. Thus, increased levels of resistin (P=0.002) and HOMA-IR (P=0.005) could be used as predictive factors for the recovery time. The enhanced levels of resistin and HOMA-IR were shown to correlate with the high CRP levels in the cellulitis group. Therefore, the results indicated that increased levels of resistin may function as a prognostic marker for cellulitis.
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Affiliation(s)
- AYSE ERTURK
- Department of Infectious Disease, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
- Correspondence to: Dr Ayse Erturk, Department of Infectious Disease, School of Medicine, Recep Tayyip Erdogan University, 74 İslampaşa Mahallesi, Rize 53200, Turkey, E-mail:
| | - MEDINE CUMHUR CURE
- Department of Biochemistry, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - ERKAN CURE
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - AYSEL KURT
- Department of Thoracic Surgery, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - AYSEGUL COPUR CICEK
- Department of Microbiology, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
| | - SULEYMAN YUCE
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize 53200, Turkey
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Akyildiz ZI, Polat S, Yurekli BS, Kocabas GU, Tuluce K, Tuluce SY, Kocabas U, Bozkaya G, Yuksel A, Nazli C. Epicardial fat, body mass index, and triglyceride are independent contributors of serum fibroblast growth factor 21 level in obese premenopausal women. J Endocrinol Invest 2015; 38:361-6. [PMID: 25312836 DOI: 10.1007/s40618-014-0185-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/29/2014] [Indexed: 12/24/2022]
Abstract
PURPOSE The hormone fibroblast growth factor 21 (FGF-21) regulates carbohydrate and lipid homeostasis. FGF-21 represents an attractive novel therapy for obesity since administration of FGF-21 has been shown to improve metabolic abnormalities in obese animal models. We investigated FGF-21 and its relationship with epicardial fat thickness (EFT), metabolic parameters, and inflammatory markers in premenopausal obese women compared to controls with similar Systematic Coronary Risk Evaluation (SCORE) project risk profiles. METHODS Forty-five obese premenopausal women with body mass index (BMI) ≥30 kg/m(2) and 41 control premenopausal women with BMI <25 kg/m(2) with similar SCORE project risk profiles were included in this case-control study. EFT was evaluated by two-dimensional transthoracic echocardiography. Serum FGF-21 was measured with an ELISA kit. RESULTS FGF-21 and EFT were significantly higher in obese women compared to controls (p < 0.001). Multiple stepwise linear regression analysis showed that EFT, BMI, and triglycerides (TG) independently contributed to FGF-21 (R(2) = 0.757, p < 0.001). However, homeostasis model assessment of insulin resistance (HOMA-IR), visceral ectopic fat, and inflammatory markers were not found as a direct contributor to serum FGF-21 level (p > 0.05). CONCLUSIONS EFT, BMI, and TG may play an important role in predicting serum FGF-21 level which may be a potential therapeutic target in cardiometabolic disorders in the future.
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Affiliation(s)
- Z I Akyildiz
- Department of Cardiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Basin Sitesi, 35360, Izmir, Turkey.
| | - S Polat
- Department of Internal Medicine, Izmir Bozyaka Education and Research Hospital, Izmir, Turkey
| | - B S Yurekli
- Department of Endocrinology and Metabolism, Ege University Faculty of Medicine, Izmir, Turkey
| | - G U Kocabas
- Department of Endocrinology, Izmir Bozyaka Education and Research Hospital, Izmir, Turkey
| | - K Tuluce
- Department of Cardiology, Izmir Karsiyaka State Hospital, Izmir, Turkey
| | - S Y Tuluce
- Department of Cardiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Basin Sitesi, 35360, Izmir, Turkey
| | - U Kocabas
- Department of Cardiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Basin Sitesi, 35360, Izmir, Turkey
| | - G Bozkaya
- Department of Biochemistry, Izmir Bozyaka Education and Research Hospital, Izmir, Turkey
| | - A Yuksel
- Department of Internal Medicine, Izmir Bozyaka Education and Research Hospital, Izmir, Turkey
| | - C Nazli
- Department of Cardiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Basin Sitesi, 35360, Izmir, Turkey
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Kim AY, Kim HS, Kang JH, Yang MP. Serum adipokine concentrations in dogs with diabetes mellitus: a pilot study. J Vet Sci 2015; 16:333-40. [PMID: 25643799 PMCID: PMC4588019 DOI: 10.4142/jvs.2015.16.3.333] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 01/29/2015] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to determine whether serum adipokine concentrations differed between healthy dogs and dogs with diabetes mellitus (DM). To accomplish this, 19 dogs with newly diagnosed DM were compared to 20 otherwise healthy dogs. The serum concentrations of visfatin, leptin, IL-1β, IL-6, IL-18, and TNF-α were significantly higher in diabetic dogs than in healthy dogs, whereas the serum adiponectin concentrations were lower in diabetic dogs. However, there were no significant differences in the IL-10 and resistin levels between groups. The serum leptin concentrations in diabetic dogs with and without concurrent disorders differed significantly. Treatment with insulin induced a significant decrease in IL-6 in diabetic dogs without concurrent disorders. These results show that the clinical diabetic state of dogs could modulate the circulating visfatin and adiponectin concentrations directly, while upregulation of leptin was probably a result of concurrent disorders rather than an effect of persistent hyperglycemia as a result of DM.
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Affiliation(s)
- Ah Young Kim
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju 361-763, Korea
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Abstract
In the last decade there has been increasing focus on body fat distribution, rather than on the degree of obesity. More recently, great interest has also been dedicated to ectopic fat deposition in overnourished individuals that reflects a failure of the system of intracellular lipid homeostasis, which, in normal conditions, prevents lipotoxicity in the organs, by confining lipid overload to cells specifically designed to store large quantities of surplus calories, the white adipocytes. Consequently, excess body weight leads to fat infiltration of multiple organs including liver, pancreas, skeletal muscle, and heart thus forming "ectopic fat". Although overfeeding is considered the main predictor of ectopic fat deposition, other factors may be also involved. The purpose of this review is to evaluate the current available data on the predictors of ectopic fat deposition in humans.
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Affiliation(s)
- Mauro Zamboni
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
| | - Andrea P Rossi
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
| | - Francesco Fantin
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
| | - Simona L Budui
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
| | - Elena Zoico
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
| | - Giulia A Zamboni
- Institute od Radiology, University Hospital GB Rossi, Verona, Italy.
| | - Gloria Mazzali
- Section of Geriatrics, Department of Medicine, University of Verona, Verona, Italy.
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Pan Z, Wang H, Liu Y, Yu C, Zhang Y, Chen J, Wang X, Guan Q. Involvement of CSE/ H2S in high glucose induced aberrant secretion of adipokines in 3T3-L1 adipocytes. Lipids Health Dis 2014; 13:155. [PMID: 25277804 PMCID: PMC4271437 DOI: 10.1186/1476-511x-13-155] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/28/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Deregulated secretion of adipokines contributes to subclinical systemic inflammation associated with type 2 diabetes mellitus (T2DM). However, the mechanisms underlying are not fully understood. Hydrogen sulfide (H2S), as an endogenous gasotransmitter, possesses an anti-inflammation activity. The aim of this study was to examine the possible involvement of H2S in high glucose induced adipokine secretion in 3T3-L1 adipocytes. METHODS The expression of cystathionine-gamma-lyase (CSE), the H2S-forming enzyme, was evaluated by Western-blotting and real-time PCR. The secretion of TNF-α, MCP-1 and adiponectin was determined by radioimmunoassay and enzyme-linked immunosorbent assay (ELISA), respectively. Lentiviral empty vector and vector expressing mouse CSE were used for in vitro transduction. RESULTS High glucose (HG) significantly decreased CSE expression at both protein and mRNA levels in mature 3T3-L1 adipocytes. In parallel, HG significantly increased secretion of MCP-1 while decreasing secretion of adiponectin, but had no effect on secretion of TNF-α. HG induced changes in MCP-1 and adiponectin secretion were partly attenuated by forced expression of CSE or sodium hydrosulfide (NaHS), a source of exogenous H2S. CONCLUSION High glucose induces aberrant secretion of adipokines in mature 3T3-L1 adipocytes, favoring inflammation. The mechanism is partly related to inhibition of CSE/ H2S system.
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Affiliation(s)
| | | | | | | | | | | | | | - Qingbo Guan
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University; Shandong Clinical Medical Center of Endocrinology and Metabolism; Institute of Endocrinology and Metabolism; Shandong Academy of Clinical Medicine, 324 Jing 5 Rd, Jinan, Shandong 250021, P, R, China.
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BAO JIAPENG, JIANG LIFENG, LI JING, CHEN WEIPING, HU PENGFEI, WU LIDONG. Visceral adipose tissue-derived serine protease inhibitor inhibits interleukin-1β-induced catabolic and inflammatory responses in murine chondrocytes. Mol Med Rep 2014; 10:2191-7. [DOI: 10.3892/mmr.2014.2478] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 05/30/2014] [Indexed: 11/06/2022] Open
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New insight into adiponectin role in obesity and obesity-related diseases. BIOMED RESEARCH INTERNATIONAL 2014; 2014:658913. [PMID: 25110685 PMCID: PMC4109424 DOI: 10.1155/2014/658913] [Citation(s) in RCA: 381] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 06/12/2014] [Indexed: 02/07/2023]
Abstract
Obesity is a major health problem strongly increasing the risk for various severe related complications such as metabolic syndrome, cardiovascular diseases, respiratory disorders, diabetic retinopathy, and cancer. Adipose tissue is an endocrine organ that produces biologically active molecules defined “adipocytokines,” protein hormones with pleiotropic functions involved in the regulation of energy metabolism as well as in appetite, insulin sensitivity, inflammation, atherosclerosis, cell proliferation, and so forth. In obesity, fat accumulation causes dysregulation of adipokine production that strongly contributes to the onset of obesity-related diseases. Several advances have been made in the treatment and prevention of obesity but current medical therapies are often unsuccessful even in compliant patients. Among the adipokines, adiponectin shows protective activity in various processes such as energy metabolism, inflammation, and cell proliferation. In this review, we will focus on the current knowledge regarding the protective properties of adiponectin and its receptors, AdipoRs (“adiponectin system”), on metabolic complications in obesity and obesity-related diseases. Adiponectin, exhibiting antihyperglycemic, antiatherogenic, and anti-inflammatory properties, could have important clinical benefits in terms of development of therapies for the prevention and/or for the treatment of obesity and obesity-related diseases.
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Eddouks M, Bidi A, El Bouhali B, Hajji L, Zeggwagh NA. Antidiabetic plants improving insulin sensitivity. ACTA ACUST UNITED AC 2014; 66:1197-214. [PMID: 24730446 DOI: 10.1111/jphp.12243] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 02/23/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND Globally, the prevalence of diabetes mellitus is increasing at an alarming rate. This chronic pathology gravely troubled the human health and quality of life. Both insulin deficiency and insulin resistance are involved in the pathophysiology of diabetes mellitus. Moreover, insulin resistance is being diagnosed nowadays in a growing population of diabetic and obese patients, especially in industrialized societies. There are lots of conventional agents available to control and to treat diabetes, but total recovery from this disorder has not been reported up to this date. Plants provided a potential source of hypoglycemic drugs and are widely used in several traditional systems of medicine to prevent diabetes. A few reviews with less attention paid to mechanisms of action have been published on antidiabetic plants. OBJECTIVES The present review focuses on the various plants that have been reported to be effective in improving insulin sensitivity associated with diabetes. KEY FINDINGS In this work, an updated systematic review of the published literature has been conducted to review the antidiabetic plants improving insulin sensitivity and 111 medicinal plants have been reported to have a beneficial effect on insulin sensitivity using several in-vitro and in-vivo animal models of diabetes. CONCLUSION The different metabolic and cellular effects of the antidiabetic plants improving insulin sensitivity are reported indicating the important role of medicinal plants as potential alternative or complementary use in controlling insulin resistance associated with diabetes mellitus.
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Affiliation(s)
- Mohamed Eddouks
- Faculty of Sciences and Techniques Errachidia, Moulay Ismail University, Errachidia, Morocco
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Jung CH, Lee MJ, Kang YM, Lee YL, Yoon HK, Kang SW, Lee WJ, Park JY. Vaspin inhibits cytokine-induced nuclear factor-kappa B activation and adhesion molecule expression via AMP-activated protein kinase activation in vascular endothelial cells. Cardiovasc Diabetol 2014; 13:41. [PMID: 24517399 PMCID: PMC3925442 DOI: 10.1186/1475-2840-13-41] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/11/2014] [Indexed: 12/17/2022] Open
Abstract
Background Vaspin is an adipocytokine that was recently identified in the visceral adipose tissue of diabetic rats and has anti-diabetic and anti-atherogenic effects. We hypothesized that vaspin prevents inflammatory cytokine-induced nuclear factor-kappa B (NF-κB) activation by activating AMP-activated protein kinase (AMPK) in vascular endothelial cells. Methods We examined the effects of vaspin on NF-κB activation and the expression of the NF-κB-mediated genes intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), E-selectin, and monocyte chemoattractant protein-1 (MCP-1). Human aortic endothelial cells (HAECS) were used. Tumor necrosis factor alpha (TNFα) was used as a representative proinflammatory cytokine. Results Treatment with vaspin significantly increased the phosphorylation of AMPK and acetyl-CoA carboxylase, the down-stream target of AMPK. Furthermore, treatment with vaspin significantly decreased TNFα-induced activation of NF-κB, as well as the expression of the adhesion molecules ICAM-1, VCAM-1, E-selectin, and MCP-1. These effects were abolished following transfection of AMPKα1-specific small interfering RNA. In an adhesion assay using THP-1 cells, vaspin reduced TNFα-induced adhesion of monocytes to HAECS in an AMPK-dependent manner. Conclusions Vaspin might attenuate the cytokine-induced expression of adhesion molecule genes by inhibiting NF-κB following AMPK activation.
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Affiliation(s)
| | | | | | | | | | | | | | - Joong-Yeol Park
- Department of Internal Medicine, University of Ulsan College of Medicine, Poongnap-dong, Songpa-gu, Seoul 138-736, Korea.
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Paragh G, Seres I, Harangi M, Fülöp P. Dynamic interplay between metabolic syndrome and immunity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 824:171-90. [PMID: 25039000 DOI: 10.1007/978-3-319-07320-0_13] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Obesity and its co-morbidities as metabolic syndrome, type 2 diabetes mellitus and cardiovascular diseases are major health problems worldwide. Several reports indicated that nutrient excess and metabolic syndrome are linked with altered immune response. Indeed, metabolic syndrome is characterized by insulin resistance and chronic low-grade inflammation, which conditions are the consequences of the complex interaction between adipocytes and immune cells. Enlarged white adipose tissue is infiltrated by immune cells and secretes various bioactive substances, like adipokines, cytokines and other inflammatory mediators. Due to its special architecture in which metabolic and immune cells are in intimate proximity, metabolic and immunologic pathways are closely integrated in adipose tissue. With the contribution of altered gut microbiota, adipokines and cytokines modulate insulin signaling and immune response leading to adipose tissue inflammation and systemic insulin resistance. In this chapter, we focus on the cellular and molecular mechanisms that lead to impaired insulin sensitivity and chronic low-grade inflammation in obesity. We also detail the potential role of adipokines and immune cells in this deleterious process, and the concerns of vaccination in metabolic syndrome. Finally, we address the links between obesity and gut microbiota as an emerging new field of interest, and scratch the surface of potential therapeutic opportunities.
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Affiliation(s)
- György Paragh
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary,
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Ota T. Obesity-induced inflammation and insulin resistance. Front Endocrinol (Lausanne) 2014; 5:204. [PMID: 25538683 PMCID: PMC4255620 DOI: 10.3389/fendo.2014.00204] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/16/2014] [Indexed: 12/20/2022] Open
Affiliation(s)
- Tsuguhito Ota
- Department of Cell Metabolism and Nutrition, Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Japan
- *Correspondence:
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