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Hua K, Li T, He Y, Guan A, Chen L, Gao Y, Xu Q, Wang H, Luo R, Zhao L, Jin H. Resistin secreted by porcine alveolar macrophages leads to endothelial cell dysfunction during Haemophilus parasuis infection. Virulence 2023; 14:2171636. [PMID: 36694280 PMCID: PMC9928480 DOI: 10.1080/21505594.2023.2171636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Haemophilus parasuis (H. parasuis) causes exudative inflammation, implying endothelial dysfunction during pathogen infection. However, so far, the molecular mechanism of endothelial dysfunction caused by H. parasuis has not been clarified. By using the transwell-based cell co-culture system, we demonstrate that knocking out resistin in porcine alveolar macrophages (PAMs) dramatically attenuated endothelial monolayer damage caused by H. parasuis. The resistin secreted by PAMs inhibited the expression of the tight junction proteins claudin-5 and occludin rather than the adherens junction protein VE-cadherin in co-cultured porcine aortic endothelial cells (PAECs). Furthermore, we demonstrate that resistin regulated claudin-5 and occludin expression and monolayer PAEC permeability in an LKB1/AMPK/mTOR pathway-dependent manner. Additionally, we reveal that the outer membrane lipoprotein gene lppA in H. parasuis induced resistin expression in PAMs, as deleting lppA reduced resistin expression in H. parasuis-infected PAMs, causing a significant change in LKB1/AMPK/mTOR pathway activity in co-cultured PAECs, thereby restoring tight junction protein levels and endothelial monolayer permeability. Thus, we postulate that the H. parasuis lppA gene enhances resistin production in PAMs, disrupting tight junctions in PAECs and causing endothelial barrier dysfunction. These findings elucidate the pathogenic mechanism of exudative inflammation caused by H. parasuis for the first time and provide a more profound angle of acute exudative inflammation caused by bacteria.
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Affiliation(s)
- Kexin Hua
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Tingting Li
- Department of Animal Disease Diagnosis, Hubei Animal Disease Prevention and Control Centre, Wuhan, China
| | - Yanling He
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Aohan Guan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Liying Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yuan Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Qianshuan Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Haoyu Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China,Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China,CONTACT Hui Jin
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Merzah MH, Diajil AR. Serum and salivary adiponectin levels as predictive markers for diabetes mellitus in children with a family history of diabetes. J Med Life 2023; 16:1561-1565. [PMID: 38313182 PMCID: PMC10835556 DOI: 10.25122/jml-2023-0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/15/2023] [Indexed: 02/06/2024] Open
Abstract
Diabetes mellitus (DM) is a chronic, metabolic condition marked by defects in insulin production, action, or both. Environmental and genetic factors can contribute to the onset of diabetes mellitus. Adiponectin, a hormone affecting pancreatic beta cell proliferation, has emerged as a potential indicator of diabetes risk. This cross-sectional study aimed to evaluate serum and salivary adiponectin levels as predictors of diabetes mellitus in children with/without a family history of diabetes mellitus. The study was conducted at Al-Zahra Hospital in Najaf city and included 125 children aged 5 to 16. Data on demographics, including name, age, and gender, were collected, and body mass index (BMI) was assessed. Serum and salivary adiponectin levels were measured and analyzed in relation to family history and BMI. Children with a family history of DM had high serum adiponectin (ADP) levels. Serum adiponectin levels were significantly higher in children with first-degree relatives having a history of diabetes mellitus, except for cases involving mothers and other relatives with diabetes mellitus history (p<0.05). Furthermore, serum adiponectin levels were higher in obese children. Salivary adiponectin levels were significantly elevated in children with a maternal family history of diabetes (p=0.01), while no significant correlation was found with BMI. A significant negative correlation (r=-0.180, p=0.05) between salivary and serum adiponectin concentrations was observed. Compared to children with a normal, healthy weight, children with obesity had decreased salivary adiponectin levels and increased serum adiponectin levels.
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Affiliation(s)
- Maryam Hamid Merzah
- Department of Oral Diagnosis, Oral Medicine, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ameena Ryhan Diajil
- Department of Oral Diagnosis, Oral Medicine, College of Dentistry, University of Baghdad, Baghdad, Iraq
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Garbuzova EV, Khudiakova AD, Shcherbakova LV, Kashtanova EV, Polonskaya YV, Stakhneva EM, Ragino YI. Associations of Adipocytokines and Early Renal Dysfunction in Young People on the Background of Dyslipidemia. J Pers Med 2023; 13:1238. [PMID: 37623488 PMCID: PMC10455902 DOI: 10.3390/jpm13081238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/28/2023] [Accepted: 08/05/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND There are data supporting the idea that atherogenic dyslipidemia is a risk factor for CKD and reduced GFR. The aim was to evaluate the associations between adipocytokines and early renal dysfunction in young people with dyslipidemia. MATERIALS AND METHODS A population study was conducted in IIPM-Branch of IC&G SB RAS, in 2013-2017. Furthermore, 1033 people were included in the study (469 men (45.4%) and 564 women (54.6%)). The study included blood sampling, anthropometric data, and adipokines by multiplex analysis. RESULTS Among people with reduced kidney function and DLP, men were 3.1 times more common than without DLP, women smoked 2 times less often, arterial hypertension was 7.8 times more common, and abdominal obesity was 2.7 times more common (and women with DLP were 3 times more likely than those without DLP). An increase in the level of resistin by 1 mcg/mL was associated with an increased chance of having renal dysfunction by 0.2%. An increase in the level of GIP was associated with an increased chance of having renal dysfunction by 1.1%. CONCLUSIONS In young people with dyslipidemia, regardless of the presence of abdominal obesity, resistin and GIP are associated with the presence of renal dysfunction.
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Affiliation(s)
| | | | | | | | | | | | - Yulia I. Ragino
- Research Institute of Internal and Preventive Medicine–Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (IIPM—Branch of IC&G SB RAS), B. Bogatkova Str., 175/1, 630089 Novosibirsk, Russia; (E.V.G.); (A.D.K.); (L.V.S.); (E.V.K.); (Y.V.P.); (E.M.S.)
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Lu Y, Liu J, Boey J, Hao R, Cheng G, Hou W, Wu X, Liu X, Han J, Yuan Y, Feng L, Li Q. Associations between eating speed and food temperature and type 2 diabetes mellitus: a cross-sectional study. Front Nutr 2023; 10:1205780. [PMID: 37560059 PMCID: PMC10407090 DOI: 10.3389/fnut.2023.1205780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/07/2023] [Indexed: 08/11/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the relationship between eating speed and food temperature and type 2 diabetes mellitus (T2DM) in the Chinese population. METHODS A cross-sectional survey was conducted between December 2020 to March 2022 from the department of Endocrinology at the Shandong Provincial Hospital. All recruited participants were asked to complete structured questionnaires on their eating behaviors at the time of recruitment. Clinical demographic data such as gender, age, height, weight, familial history of T2DM, prevalence of T2DM and various eating behaviors were collected. Univariate and multivariate logistic regression analyses were used to analyze the associations between eating behaviors and T2DM. RESULTS A total of 1,040 Chinese adults were included in the study, including 344 people with T2DM and 696 people without T2DM. Multivariate logistic regression analysis of the general population showed that gender (OR = 2.255, 95% CI: 1.559-3.260, p < 0.001), age (OR = 1.091, 95% CI: 1.075-1.107, p < 0.001), BMI (OR = 1.238, 95% CI: 1.034-1.483, p = 0.020), familial history of T2DM (OR = 5.709, 95% CI: 3.963-8.224, p < 0.001), consumption of hot food (OR = 4.132, 95% CI: 2.899-5.888, p < 0.001), consumption of snacks (OR = 1.745, 95% CI: 1.222-2.492, p = 0.002), and eating speed (OR = 1.292, 95% CI:1.048-1.591, p = 0.016) were risk factors for T2DM. CONCLUSION In addition to traditional risk factors such as gender, age, BMI, familial history of T2DM, eating behaviors associated with Chinese culture, including consumption of hot food, consumption of snacks, and fast eating have shown to be probable risk factors for T2DM.
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Affiliation(s)
- Yan Lu
- Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Jia Liu
- Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Johnson Boey
- Department of Podiatry, National University Hospital Singapore, Singapore, Singapore
| | - Ruiying Hao
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Guopeng Cheng
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Wentan Hou
- Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Xinhui Wu
- Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Xuan Liu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Junming Han
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, Shandong, China
| | - Yuan Yuan
- Department of Clinical Nutrition, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Li Feng
- Department of Clinical Nutrition, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Qiu Li
- Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Boutari C, Hill MA, Procaccini C, Matarese G, Mantzoros CS. The key role of inflammation in the pathogenesis and management of obesity and CVD. Metabolism 2023:155627. [PMID: 37302694 DOI: 10.1016/j.metabol.2023.155627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/13/2023]
Affiliation(s)
- Chrysoula Boutari
- Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration General Hospital, Thessaloniki, Greece; Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Claudio Procaccini
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Naples, Italy; Unità di Neuroimmunologia, IRCCS-Fondazione Santa Lucia, 00143 Rome, Italy
| | - Giuseppe Matarese
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Naples, Italy; Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", 80131 Naples, Italy
| | - Christos S Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Medicine, Boston VA Healthcare System, Boston, MA, USA
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Woo YR, Cho M, Han KD, Cho SH, Lee JH. Increased Risk of Dementia in Patients with Atopic Dermatitis: A Nationwide Population-Based Cohort Study. Acta Derm Venereol 2023; 103:adv4557. [PMID: 37186168 PMCID: PMC10158831 DOI: 10.2340/actadv.v103.4557] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/13/2023] [Indexed: 05/17/2023] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disorder with bimodal incidence peaks in early childhood and middle-aged and older adults. Few studies have focused on the risk of dementia in AD. The aims of this study were to analyse the incidence, and risk factors for dementia in patients with AD. This nationwide population-based retrospective cohort study enrolled 38,391 adults ≥ 40 years of age with AD and 2,643,602 controls without AD from the Korean National Health Insurance System (NHIS) database from 2009 to 2016. The cumulative incidence probability of all-cause dementia, Alzheimer's disease, or vascular dementia at 8 years was 50, 39, and 7 per 1,000 person-years in patients with AD, respectively. The adjusted risks of all-cause dementia (hazard ratio (HR), 1.072; 95% confidence interval (95% CI) 1.026-1.120), and Alzheimer's disease (HR 1.051; 95% CI 1.000-1.104) were increased in patients with AD. The effect of AD on the development of all-cause dementia and Alzheimer's dementia varied according to age and diabetes mellitus (all p for interaction, < 0.05). The risks of all-cause dementia and Alzheimer's disease were increased in patients with AD. Management of modifiable risk factors is important for preventing dementia in patients with AD.
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Affiliation(s)
- Yu Ri Woo
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Minah Cho
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyung Do Han
- Department of Statistics and Artuarial Science, Soongsil University, Seoul, Korea
| | - Sang Hyun Cho
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Hyun Lee
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Deepika F, Bathina S, Armamento-Villareal R. Novel Adipokines and Their Role in Bone Metabolism: A Narrative Review. Biomedicines 2023; 11:biomedicines11020644. [PMID: 36831180 PMCID: PMC9953715 DOI: 10.3390/biomedicines11020644] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/02/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023] Open
Abstract
The growing burden of obesity and osteoporosis is a major public health concern. Emerging evidence of the role of adipokines on bone metabolism has led to the discovery of novel adipokines over the last decade. Obesity is recognized as a state of adipose tissue inflammation that adversely affects bone health. Adipokines secreted from white adipose tissue (WAT) and bone marrow adipose tissue (BMAT) exerts endocrine and paracrine effects on the survival and function of osteoblasts and osteoclasts. An increase in marrow fat is implicated in osteoporosis and, hence, it is crucial to understand the complex interplay between adipocytes and bone. The objective of this review is to summarize recent advances in our understanding of the role of different adipokines on bone metabolism. METHODS This is a comprehensive review of the literature available in PubMED and Cochrane databases, with an emphasis on the last five years using the keywords. RESULTS Leptin has shown some positive effects on bone metabolism; in contrast, both adiponectin and chemerin have consistently shown a negative association with BMD. No significant association was found between resistin and BMD. Novel adipokines such as visfatin, LCN-2, Nesfatin-1, RBP-4, apelin, and vaspin have shown bone-protective and osteoanabolic properties that could be translated into therapeutic targets. CONCLUSION New evidence suggests the potential role of novel adipokines as biomarkers to predict osteoporosis risk, and as therapeutic targets for the treatment of osteoporosis.
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Affiliation(s)
- Fnu Deepika
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
- Correspondence: (F.D.); (R.A.-V.); Tel.: +1-713-794-1414 (R.A.-V.)
| | - Siresha Bathina
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
| | - Reina Armamento-Villareal
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
- Correspondence: (F.D.); (R.A.-V.); Tel.: +1-713-794-1414 (R.A.-V.)
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Patkar S, Kunte A, Sundaram S, Goel M. Post-hepatectomy biliary leaks: analysis of risk factors and development of a simplified predictive scoring system. Langenbecks Arch Surg 2023; 408:63. [PMID: 36692605 DOI: 10.1007/s00423-023-02776-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 12/14/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE Most studies identifying risk factors for post-hepatectomy biliary leaks (PHBLs) have relatively small proportions of major hepatectomies. A simplified predictive score to identify high risk patients is necessary in order to investigate the efficacy of mitigation strategies. METHODS A retrospective analysis of a prospectively maintained database of liver resections from a high-volume cancer center was performed. Multivariate regression was utilized for identification of risk factors and development of the predictive score. RESULTS A total of 862 patients underwent a curative hepatic resection over 10 years, of whom 146 (16.9%) developed a biliary leak; 85 (9.86%), 52 (6.03%), and 9 (1.04%) patients had a grade A, B, and C leak respectively. A biliary-enteric anastomosis [OR 5.1 (95% CI 2.45-10.58); p < 0.001], a central [OR 4.33 (95% CI 1.25-14.95); p = 0.021] or an extended hepatectomy [OR 4.29 (95% CI 1.52-12.12); p = 0.006], liver steatosis [OR 2.28 (95% CI 1.09-4.77); p = 0.027], and blood loss of ≥ 2000 mL [OR 2.219 (95% CI 1.15-4.27); p = 0.017] were identified as independent predictors of a clinically significant biliary leak and were assigned 1 point each to develop the biliary leak score. Clinically significant biliary leaks were seen in 11 (2.79%), 20 (6.38%), 19 (15.4%), 9 (56.3%), and 1 (100%) patients with scores of 0, 1, 2, 3, and 4 respectively (p < 0.001). CONCLUSION A biliary-enteric anastomosis, a central or extended hepatectomy, liver steatosis, and blood loss ≥ 2L combined result in a simple predictive score for clinically significant biliary leaks.
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Affiliation(s)
- Shraddha Patkar
- GI & HPB Services, Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Aditya Kunte
- GI & HPB Services, Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Sridhar Sundaram
- Department of Digestive Diseases and Clinical Nutrition, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Mahesh Goel
- GI & HPB Services, Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India.
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Shi Q, Liu X, Fan X, Wang R, Qi K. Paternal dietary ratio of n-6: n-3 polyunsaturated fatty acids programs offspring leptin expression and gene imprinting in mice. Front Nutr 2022; 9:1043876. [PMID: 36618698 PMCID: PMC9816484 DOI: 10.3389/fnut.2022.1043876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
Background This study determined the effects of the paternal dietary ratio of n-6: n-3 polyunsaturated fatty acids (PUFAs) on leptin expression in the offspring and associated gene imprinting in a mouse model. Methods Three- to four-week-old male C57BL/6J mice (F0) were fed an n-3 PUFA-deficient (n-3 D) diet, a diet with normal n-3 PUFA content (n-3 N; n-6: n-3 = 4.3:1), or a diet with a high n-3 PUFA content (n-3 H; n-6: n-3 = 1.5:1) for 8 weeks. Two subsequent generations were generated by mating F0 and F1 male mice with 10-week-old virgin female C57 BL/6J mice, to produce F1 and F2 offspring. Results Compared to the paternal n-3 D diet, paternal n-3 N and n-3 H diets reduced adipose mRNA expression of leptin (Lep) and its plasma concentrations in juvenile F1 male and female offspring, and adult F1 male and F2 female offspring, with upregulated Lep receptor mRNA expression in the hypothalamus. Meanwhile, paternal n-3 N and n-3 H diets altered the expression of the imprinted genes H19, Igf2, Igf2r, Plagl1, Cdkn1c, Kcnq1ot1, Peg3, and Grb10 in the adipose tissue of juvenile and adult F1 males, with almost no effects on F1 females, while more effects were observed in the adult F2 females than F2 males. Principal component analysis verified that Plagl1, Cdkn1c, and Kcnq1ot1 contributed the most to variation in adipose tissue expression in all offspring. Some of these genes (Plagl1, Cdkn1c, Kcnq1ot1, Peg3, and Grb10) were altered by the paternal n-3 N and n-3 H diets in the F1 and F2 generation testes as well. Furthermore, adipose Lep expression was positively correlated with expressions of H19, Igf2r, Plagl1, and Kcnq1ot1 in juvenile F1 males and females, negatively correlated with the Kcnq1ot1 expression in adult F1 males, and positively correlated with the Plagl1 expression in adult F2 females. Conclusion These data imply that paternal Plagl1, Cdkn1c, and Kcnq1ot1 might be part of the pathways involved in offspring leptin programming. Therefore, a lower ratio of n-6: n-3 PUFAs, with higher intake of n-3 PUFAs in paternal pre-conception, may help maintain the offspring's optimal leptin pattern in a sex-specific manner through multiple generations, and thereby, be beneficial for the offspring's long-term health.
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10
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Galley JC, Singh S, Awata WMC, Alves JV, Bruder-Nascimento T. Adipokines: Deciphering the cardiovascular signature of adipose tissue. Biochem Pharmacol 2022; 206:115324. [PMID: 36309078 PMCID: PMC10509780 DOI: 10.1016/j.bcp.2022.115324] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/02/2022]
Abstract
Obesity and hypertension are intimately linked due to the various ways that the important cell types such as vascular smooth muscle cells (VSMC), endothelial cells (EC), immune cells, and adipocytes, communicate with one another to contribute to these two pathologies. Adipose tissue is a very dynamic organ comprised primarily of adipocytes, which are well known for their role in energy storage. More recently adipose tissue has been recognized as the largest endocrine organ because of its ability to produce a vast number of signaling molecules called adipokines. These signaling molecules stimulate specific types of cells or tissues with many adipokines acting as indicators of adipocyte healthy function, such as adiponectin, omentin, and FGF21, which show anti-inflammatory or cardioprotective effects, acting as regulators of healthy physiological function. Others, like visfatin, chemerin, resistin, and leptin are often altered during pathophysiological circumstances like obesity and lipodystrophy, demonstrating negative cardiovascular outcomes when produced in excess. This review aims to explore the role of adipocytes and their derived products as well as the impacts of these adipokines on blood pressure regulation and cardiovascular homeostasis.
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Affiliation(s)
- Joseph C. Galley
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM), University of Pittsburgh, Pittsburgh, PA, USA
| | - Shubhnita Singh
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM), University of Pittsburgh, Pittsburgh, PA, USA
| | - Wanessa M. C. Awata
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM), University of Pittsburgh, Pittsburgh, PA, USA
| | - Juliano V. Alves
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM), University of Pittsburgh, Pittsburgh, PA, USA
| | - Thiago Bruder-Nascimento
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM), University of Pittsburgh, Pittsburgh, PA, USA
- Endocrinology Division at UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
- Vascular Medicine Institute (VMI), University of Pittsburgh, Pittsburgh, PA, USA
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Resistin as a risk factor for all-cause (and cardiovascular) death in the general population. Sci Rep 2022; 12:19627. [PMID: 36380110 PMCID: PMC9666658 DOI: 10.1038/s41598-022-24039-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Serum resistin is a pro-inflammatory cytokine that has been described as a risk factor associated with mortality in several clinical sets including type 2 diabetes. Mortality studies in the general population are needed to find out the risk of death associated to this cytokine. In a follow-up study of a cohort of adult population (n = 6636) in Spain over a period of fifteen years (447 deaths/102,255 person-years), serum resistin measurements and death records were obtained. The risks of all-cause deaths, and deaths from cardiovascular and oncological diseases were estimated. Hazard ratios (HR) and its confidence intervals (CI) were calculated using multivariable Cox models, adjusting the effect of 11 traditional risk factors. The risk of all-cause mortality among participants exposed to the highest quintile of resistin was always higher than among those in the lowest quintile (HR varied between 1.55 when smoking was the adjusted factor [95% CI 1.17-2.05], and 1.68 when the adjusted factor was physical activity [95% CI 1.27-2.21]). The maximally adjusted model, accounting for the effect of all traditional factors, corroborated this higher risk of all-cause mortality among people in the highest resistin quintile (HR = 1.52; 95% CI 1.13-2.05). The effect of resistin was even higher for cardiovascular deaths (HR = 2.14; 95% CI 1.13-4.06), being exceeded only by suffering diabetes (HR = 3.04; 95% CI 1.98-4.69) or previous acute coronary syndrome (HR = 3.67; 95% CI 2.18-6.18). This findings corroborate the role of resistin as a risk factor for all-cause (and cardiovascular) death in the general population.
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12
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Zhang Y, Wang S, Xia H, Guo J, He K, Huang C, Luo R, Chen Y, Xu K, Gao H, Sheng J, Li L. Identification of Monocytes Associated with Severe COVID-19 in the PBMCs of Severely Infected Patients Through Single-Cell Transcriptome Sequencing. ENGINEERING (BEIJING, CHINA) 2022; 17:161-169. [PMID: 34150352 PMCID: PMC8196473 DOI: 10.1016/j.eng.2021.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/07/2021] [Accepted: 05/17/2021] [Indexed: 05/15/2023]
Abstract
Understanding the immunological characteristics of monocytes-including the characteristics associated with fibrosis-in severe coronavirus disease 2019 (COVID-19) is crucial for understanding the pathogenic mechanism of the disease and preventing disease severity. In this study, we performed single-cell transcriptomic sequencing of peripheral blood samples collected from six healthy controls and 14 COVID-19 samples including severe, moderate, and convalescent samples from three severely/critically ill and four moderately ill patients. We found that the monocytes were strongly remodeled in the severely/critically ill patients with COVID-19, with an increased proportion of monocytes and seriously reduced diversity. In addition, we discovered two novel severe-disease-specific monocyte subsets: Mono 0 and Mono 5. These subsets expressed amphiregulin (AREG), epiregulin (EREG), and cytokine interleukin-18 (IL-18) gene, exhibited an enriched erythroblastic leukemia viral oncogene homolog (ErbB) signaling pathway, and appeared to exhibit pro-fibrogenic and pro-inflammation characteristics. We also found metabolic changes in Mono 0 and Mono 5, including increased glycolysis/gluconeogenesis and an increased hypoxia inducible factor-1 (HIF-1) signaling pathway. Notably, one pre-severe sample displayed a monocyte atlas similar to that of the severe/critical samples. In conclusion, our study discovered two novel severe-disease-specific monocyte subsets as potential predictors and therapeutic targets for severe COVID-19. Overall, this study provides potential predictors for severe disease and therapeutic targets for COVID-19 and thus provides a resource for further studies on COVID-19.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shuting Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - He Xia
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jing Guo
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Kangxin He
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Chenjie Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Rui Luo
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Yanfei Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Kaijin Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Hainv Gao
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou 310022, China
| | - Jifang Sheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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13
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Arjmand MH. The association between visceral adiposity with systemic inflammation, oxidative stress, and risk of post-surgical adhesion. Arch Physiol Biochem 2022; 128:869-874. [PMID: 32141779 DOI: 10.1080/13813455.2020.1733617] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abdominal and pelvic adhesions are common post-operative complications. Despite new medical technologies, these adhesions are appearing to be unavoidable and little is known about their causation; for example, why certain patients/or tissues are more prone to adhesions. There have been no clinical studies about increasing the risk adhesions in obese patients, but there is some evidence about the molecular mechanisms involving visceral fat (VF) that may lead to profibrotic conditions. VF is an endocrine/inflammatory organ which produces many biologically active molecules such as adipokines and inflammatory cytokines. Inflammatory conditions, oxidative stress, and the expression some fibrotic molecules in the VF may induce pathological conditions in the abdominal cavity that predispose to the formation of fibrotic bands.
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Affiliation(s)
- Mohammad-Hassan Arjmand
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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14
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Zhao B, Bouchareb R, Lebeche D. Resistin deletion protects against heart failure injury by targeting DNA damage response. Cardiovasc Res 2022; 118:1947-1963. [PMID: 34324657 PMCID: PMC9239578 DOI: 10.1093/cvr/cvab234] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/01/2021] [Indexed: 12/22/2022] Open
Abstract
AIMS Increased resistin (Retn) levels are associated with development of cardiovascular diseases. However, the role of Retn in heart failure (HF) is still unclear. Here we probed the functional and molecular mechanism underlying the beneficial effect of Retn deletion in HF. METHODS AND RESULTS Wild-type (WT) and adipose tissue-specific Retn-knockout (RKO) mice were subjected to transverse aortic constriction (TAC)-induced HF. Cardiac function and haemodynamic changes were measured by echocardiography and left ventricular catheterization. Adipose tissue Retn deletion attenuated while Retn cardiac-selective overexpression, via a recombinant adeno-associated virus-9 vector, exacerbated TAC-induced hypertrophy, cardiac dysfunction, and myocardial fibrosis in WT and RKO mice. Mechanistically, we showed that Gadd45α was significantly increased in RKO HF mice while cardiac overexpression of Retn led to its downregulation. miR148b-3p directly targets Gadd45α and inhibits its expression. Retn overexpression upregulated miR148b-3p expression and triggered DNA damage response (DDR) in RKO-HF mice. Inhibition of miR148b-3p in vivo normalized Gadd45α expression, decreased DDR, and reversed cardiac dysfunction and fibrosis. In vitro Retn overexpression in adult mouse cardiomyocytes activated miR148b-3p and reduced Gadd45α expression. Gadd45α overexpression in H9C2-cardiomyoblasts protected against hydrogen peroxide- and Retn-induced DDR. CONCLUSION These findings reveal that diminution in circulating Retn reduced myocardial fibrosis and apoptosis, and improved heart function in a mouse model of HF, at least in part, through attenuation of miR148b-3p and DDR. The results of this study indicate that controlling Retn levels may provide a potential therapeutic approach for treating pressure overload-induced HF.
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Affiliation(s)
- Baoyin Zhao
- Cardiovascular Research Institute, New York, NY 10029, USA
| | | | - Djamel Lebeche
- Cardiovascular Research Institute, New York, NY 10029, USA
- Department of Medicine, Diabetes, Obesity and Metabolism Institute, New York, NY 10029, USA
- Graduate School of Biomedical Sciences, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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15
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Hua K, Wang M, Jin Y, Gao Y, Luo R, Bi D, Zhou R, Jin H. P38 MAPK pathway regulates the expression of resistin in porcine alveolar macrophages via Ets2 during Haemophilus parasuis stimulation. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 128:104327. [PMID: 34863954 DOI: 10.1016/j.dci.2021.104327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Haemophilus parasuis is a widespread bacterial pathogen causing acute systemic inflammation and leading to the sudden death of piglets. Resistin, a multifunctional peptide hormone previously demonstrated to influence the inflammation in porcine, was extremely increased in H. parasuis-infected tissues. However, the mechanism of resistin expression regulation in porcine, especially during pathogen infection, remains unclear. In the present study, we explored for the first time the transcription factor and signaling pathway mediating the expression of pig resistin during H. parasuis stimulation. We found that H. parasuis induced the expression of pig resistin in a time- and dose-dependent manner via the transcription factor Ets2 in porcine alveolar macrophages during H. parasuis stimulation. Moreover, the expression of Ets2 was mediated by the activation of the p38 MAPK pathway induced by H. parasuis, thus promoting resistin production. These results revealed a novel view of the molecular mechanism of pig resistin production during acute inflammation induced by pathogenic bacteria.
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Affiliation(s)
- Kexin Hua
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Mingyang Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yishun Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yuan Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Dingren Bi
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China.
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16
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Al-Daghri NM, Abdi S, Sabico S, Alnaami AM, Wani KA, Ansari MGA, Khattak MNK, Khan N, Tripathi G, Chrousos GP, McTernan PG. Gut-Derived Endotoxin and Telomere Length Attrition in Adults with and without Type 2 Diabetes. Biomolecules 2021; 11:biom11111693. [PMID: 34827691 PMCID: PMC8615790 DOI: 10.3390/biom11111693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/16/2022] Open
Abstract
Premature aging, as denoted by a reduced telomere length (TL), has been observed in several chronic inflammatory diseases, such as obesity and type 2 diabetes mellitus (T2DM). However, no study to date has addressed the potential inflammatory influence of the gut-derived Gram-negative bacterial fragments lipopolysaccharide, also referred to as endotoxin, and its influence on TL in low-grade inflammatory states such as type 2 diabetes mellitus (T2DM). The current study therefore investigated the influence of endotoxin and inflammatory factors on telomere length (TL) in adults with (T2DM: n = 387) and without (non-diabetic (ND) controls: n = 417) obesity and T2DM. Anthropometric characteristics were taken, and fasted blood samples were used to measure biomarkers, TL, and endotoxin. The findings from this study highlighted across all participants that circulating endotoxin (r = −0.17, p = 0.01) was inversely associated with TL, noting that endotoxin and triglycerides predicted 18% of the variance perceived in TL (p < 0.001). Further stratification of the participants according to T2DM status and sex highlighted that endotoxin significantly predicted 19% of the variance denoted in TL among male T2DM participants (p = 0.007), where TL was notably influenced. The influence on TL was not observed to be impacted by anti-T2DM medications, statins, or anti-hypertensive therapies. Taken together, these results show that TL attrition was inversely associated with circulating endotoxin levels independent of the presence of T2DM and other cardiometabolic factors, suggesting that low-grade chronic inflammation may trigger premature biological aging. The findings further highlight the clinical relevance of mitigating the levels of circulating endotoxin (e.g., manipulation of gut microbiome) not only for the prevention of chronic diseases but also to promote healthy aging.
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Affiliation(s)
- Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
- Correspondence: (N.M.A.-D); (P.G.M.); Tel.: +966-14675939 (N.N.A.-D.); +44-115-8483477 (P.G.M.)
| | - Saba Abdi
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Shaun Sabico
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Abdullah M. Alnaami
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Kaiser A. Wani
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Mohammed G. A. Ansari
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Malak Nawaz Khan Khattak
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (S.A.); (S.S.); (A.M.A.); (K.A.W.); (M.G.A.A.); (M.N.K.K.)
| | - Nasiruddin Khan
- Department of Food Science and Human Nutrition, College of Applied and Health Sciences, A’Sharqiyah University, Ibra 400, Oman;
| | - Gyanendra Tripathi
- Human Sciences Research Centre, School of Human Sciences, University of Derby, Derby DE22 1GB, UK;
| | - George P. Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Philip G. McTernan
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham NG1 8NS, UK
- Correspondence: (N.M.A.-D); (P.G.M.); Tel.: +966-14675939 (N.N.A.-D.); +44-115-8483477 (P.G.M.)
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17
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Raeisi-Dehkordi H, Amiri M, Moghtaderi F, Zimorovat A, Rahmanian M, Mozaffari-Khosravi H, Salehi-Abargouei A. Effects of sesame, canola and sesame-canola oils on body weight and composition in adults with type 2 diabetes mellitus: a randomized, triple-blind, cross-over clinical trial. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6083-6092. [PMID: 33899246 DOI: 10.1002/jsfa.11265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/23/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Recent investigations have proposed that sesame and canola oils might affect body fat distribution. The present study aimed to examine the effects of sesame, canola and sesame-canola (a blend of sesame and canola oils) oils on body weight and composition in adults with type 2 diabetes mellitus in the context of a randomized, triple-blind, three-way, cross-over clinical trial. RESULTS Eligible participants were randomized to replace their regular dietary oil with sesame oil (SO), canola oil (CO) and sesame-canola oil (SCO) (with 40% SO and 60% CO). Treatment periods lasted 9 weeks and were separated by 4-week wash-out periods. Body weight and composition were measured at the beginning, in the middle and at the end of each intervention phase. In total, 93 participants completed the study. After adjustment for confounders, within-period changes were observed following SO and CO intake for body weight (0.34 ± 0.16 kg and 0.33 ± 0.17 kg) and visceral fat (0.13 ± 0.06% and 0.13 ± 0.05%, P < 0.05), respectively. Body mass index was increased within SO intake (0.13 ± 0.05 kg m-2 , P = 0.031). All of the treatment oils resulted in reduced waist circumference and index of central obesity (P < 0.05). A significant difference in change values was observed for visceral fat between SCO (-0.14 ± 0.07%) and SO (0.12 ± 0.08%) treatment periods in females (P = 0.02). CONCLUSION Sesame and canola oils might lead to a modest favorable body fat redistribution by reducing central adiposity, particularly in females; however, the changes were of little clinical importance. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Hamidreza Raeisi-Dehkordi
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mojgan Amiri
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Moghtaderi
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Alireza Zimorovat
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Masoud Rahmanian
- Diabetes Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hassan Mozaffari-Khosravi
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Diabetes Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Amin Salehi-Abargouei
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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18
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Dilworth L, Facey A, Omoruyi F. Diabetes Mellitus and Its Metabolic Complications: The Role of Adipose Tissues. Int J Mol Sci 2021; 22:ijms22147644. [PMID: 34299261 PMCID: PMC8305176 DOI: 10.3390/ijms22147644] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 12/14/2022] Open
Abstract
Many approaches have been used in the effective management of type 2 diabetes mellitus. A recent paradigm shift has focused on the role of adipose tissues in the development and treatment of the disease. Brown adipose tissues (BAT) and white adipose tissues (WAT) are the two main types of adipose tissues with beige subsets more recently identified. They play key roles in communication and insulin sensitivity. However, WAT has been shown to contribute significantly to endocrine function. WAT produces hormones and cytokines, collectively called adipocytokines, such as leptin and adiponectin. These adipocytokines have been proven to vary in conditions, such as metabolic dysfunction, type 2 diabetes, or inflammation. The regulation of fat storage, energy metabolism, satiety, and insulin release are all features of adipose tissues. As such, they are indicators that may provide insights on the development of metabolic dysfunction or type 2 diabetes and can be considered routes for therapeutic considerations. The essential roles of adipocytokines vis-a-vis satiety, appetite, regulation of fat storage and energy, glucose tolerance, and insulin release, solidifies adipose tissue role in the development and pathogenesis of diabetes mellitus and the complications associated with the disease.
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Affiliation(s)
- Lowell Dilworth
- Department of Pathology, Mona Campus, University of the West Indies, Kingston 7, Jamaica;
| | - Aldeam Facey
- Mona Academy of Sport, Mona Campus, University of the West Indies, Kingston 7, Jamaica;
| | - Felix Omoruyi
- Department of Life Sciences, Texas A&M University, Corpus Christi, TX 78412, USA
- Correspondence:
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19
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Vasamsetti SB, Coppin E, Zhang X, Florentin J, Koul S, Götberg M, Clugston AS, Thoma F, Sembrat J, Bullock GC, Kostka D, St Croix CM, Chattopadhyay A, Rojas M, Mulukutla SR, Dutta P. Apoptosis of hematopoietic progenitor-derived adipose tissue-resident macrophages contributes to insulin resistance after myocardial infarction. Sci Transl Med 2021; 12:12/553/eaaw0638. [PMID: 32718989 DOI: 10.1126/scitranslmed.aaw0638] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 11/27/2019] [Accepted: 07/01/2020] [Indexed: 12/13/2022]
Abstract
Patients with insulin resistance have high risk of cardiovascular disease such as myocardial infarction (MI). However, it is not known whether MI can initiate or aggravate insulin resistance. We observed that patients with ST-elevation MI and mice with MI had de novo hyperglycemia and features of insulin resistance, respectively. In mouse models of both myocardial and skeletal muscle injury, we observed that the number of visceral adipose tissue (VAT)-resident macrophages decreased because of apoptosis after these distant organ injuries. Patients displayed a similar decrease in VAT-resident macrophage numbers and developed systemic insulin resistance after ST-elevation MI. Loss of VAT-resident macrophages after MI injury led to systemic insulin resistance in non-diabetic mice. Danger signaling-associated protein high mobility group box 1 was released by the dead myocardium after MI in rodents and triggered macrophage apoptosis via Toll-like receptor 4. The VAT-resident macrophage population in the steady state in mice was transcriptomically distinct from macrophages in the brain, skin, kidney, bone marrow, lungs, and liver and was derived from hematopoietic progenitor cells just after birth. Mechanistically, VAT-resident macrophage apoptosis and de novo insulin resistance in mouse models of MI were linked to diminished concentrations of macrophage colony-stimulating factor and adiponectin. Collectively, these findings demonstrate a previously unappreciated role of adipose tissue-resident macrophages in sensing remote organ injury and promoting MI pathogenesis.
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Affiliation(s)
- Sathish Babu Vasamsetti
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Emilie Coppin
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Regeneration in Hematopoiesis, Leibniz Institute on Aging- Fritz Lipmann Institute, Jena 07745, Germany
| | - Xinyi Zhang
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA.,The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Jonathan Florentin
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Sasha Koul
- Department of Cardiology, Lund University, Skane University Hospital, Lund, 22184, Sweden
| | - Matthias Götberg
- Department of Cardiology, Lund University, Skane University Hospital, Lund, 22184, Sweden
| | - Andrew S Clugston
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Floyd Thoma
- Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - John Sembrat
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Grant C Bullock
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Dennis Kostka
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | | | - Mauricio Rojas
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Suresh R Mulukutla
- Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Partha Dutta
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA. .,Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213, USA
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20
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Dzięgielewska-Gęsiak S, Wyszomirska K, Fatyga E, Wysocka E, Muc-Wierzgoń M. The role of oxidant-antioxidant markers and resistin in metabolic syndrome elderly individuals. Sci Prog 2021; 104:368504211006510. [PMID: 33913390 PMCID: PMC10364936 DOI: 10.1177/00368504211006510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In elderly, hormones and oxidant-antioxidant interplay are suggested to mediate biochemical balance between adipose tissue to other tissues. Thus the study attempts to explore metabolic traits, plasma resistin, and oxidant-antioxidant markers in metabolic syndrome (MetS) in comparison to non-metabolic syndrome (non-MetS) elderly individuals. A total of 541 healthy elderly Caucasians, with no acute and/or chronic disorders were invited. After taking into account inclusion/exclusion criteria's the MetS was defined as the presence of three out of five abnormal findings and allowed to divided groups into: non-metabolic syndrome, non-MetS (n = 25, median age 69.0 years), and newly diagnosed MetS (n = 29; median age 70.5 years) individuals. Glucose, plasma lipids, resistin (Res), thiobarbituric acid-reacting substances (TBARS), total antioxidant status (TAS), and Cu,Zn-superoxide dismutase (SOD-1) were measured. The MetS had higher resistin than non-MetS (p < 0.04). The linear correlation (all at p < 0.05) showed correlation for Res&triacylglycerols (R = 0.44), and for Res&diastolic blood pressure (R = -0.58) and for SOD-1&fasting glucose (R = -0.34) in MetS, while in the non-MetS group fasting glucose correlates with Res (R = 0.58) and with TAS (R = -0.43). The multiple regression analysis (alone and in combination) showed that independently from other factors resistin correlated positively with fasting glucose (β = 0.37; R = 0.58; R2 = 0.23; p < 0.01) in all investigated elderly participants. In the MetS resistin correlated negatively with diastolic blood pressure (β = -0.68; R = 0.80; R2 = 0.53; p = 0.0004) moreover in that group TAS correlated negatively with HDL-C (β = -0.71; R = 0.72; R2 = 0.37; p = 0.01). While age correlated negatively with systolic blood pressure (β = -0.60; R = 0.62; R2 = 0.14; p = 0.03) independently from other factors in the non-MetS group. Various metabolic factors contribute to maintain serum resistin and oxidant-antioxidant balance in the elderly people in the presence or absence of MetS. Resistin may serve as a predictor of MetS in the elderly, while strong antioxidant defense interactions in older individuals may indicate good health.
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Affiliation(s)
| | - Karolina Wyszomirska
- Department of Clinical Biochemistry and Laboratory Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Edyta Fatyga
- Department of Internal Medicine, Medical University of Silesia in Katowice, Bytom, Poland
| | - Ewa Wysocka
- Chair and Department of Laboratory Diagnostics, Poznan University of Medical Sciences, Poznan, Poland
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21
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Perpétuo L, Voisin PM, Amado F, Hirtz C, Vitorino R. Ghrelin and adipokines: An overview of their physiological role, antimicrobial activity and impact on cardiovascular conditions. VITAMINS AND HORMONES 2021; 115:477-509. [PMID: 33706959 DOI: 10.1016/bs.vh.2020.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The human body has many different hormones that interact with each other and with other factors such as proteins, cell receptors and metabolites. There is still a limited understanding of some of the underlying biological mechanisms of some hormones. In the past decades, science and technology have made major advancements in regard to innovation and knowledge in fields such as medicine. However, some conditions are complex and have many variables that their full picture is still unclear, even though some of these conditions have an alarming rate of incidence and serious health consequences. Conditions such as type 2 diabetes, obesity, nonalcoholic liver disease (NAFLD), cancer in its different forms and even mental conditions, such as Alzheimer's disease, are some of the most common diseases in the 21st century. These conditions are relevant not only because of their high incidence on the general population, but also because of their severity. In this chapter, we present an overview of cardiovascular (CV) diseases. According to the World Health Organization (WHO), cardiovascular diseases, such as coronary artery disease (CAD), heart attack, cardiomyopathy and heart failure (among others), are the number one cause of death worldwide. In 2016, it was estimated that 17.9 million people died from CV diseases, representing more than 30% of all global deaths. Approximately 95% of people who died from CV diseases were so-called "premature deaths" because were referenced to individuals under the age of 70 years old. In this chapter we described some of the hormones that may have an impact on CV diseases, including ghrelin, a peptide that is mostly produced in the stomach, known to induce hunger. Ghrelin is linked to an increase in body fat, i.e., adipose tissue in animals. For this reason, we also included the adipokines leptin, adiponectin and resistin. The main objectives of this chapter are to present the state of the art knowledge concerning the mechanisms of each hormone relevant to CV diseases; to compile data and results that further elucidate the relevance of these peptides for several physiological events, conditions and diseases; and to discuss the metabolic impact of each hormone. We established connections between multiple peptides and the underlying condition/disease with tools such as STRING, referring to research using databases, such as UniProt, DisGeNET and Proteomics DB. Fig. 1 shows a network that summarizes the information presented in this chapter, which serves as a visual representation.
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Affiliation(s)
- Luís Perpétuo
- iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | | | - Francisco Amado
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal
| | - Christophe Hirtz
- IRMB, Univ Montpellier, INSERM, CHU Montpellier, CNRS, Montpellier, France
| | - Rui Vitorino
- iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal; UnIC, Departamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, Porto, Portugal; LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal.
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22
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Korac A, Srdic-Galic B, Kalezic A, Stancic A, Otasevic V, Korac B, Jankovic A. Adipokine signatures of subcutaneous and visceral abdominal fat in normal-weight and obese women with different metabolic profiles. Arch Med Sci 2021; 17:323-336. [PMID: 33747267 PMCID: PMC7959090 DOI: 10.5114/aoms/92118] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/10/2018] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Metabolic syndrome arises from abnormal adipose function accompanied by insulin resistance. As early factors reflecting/impacting lipid storage dysfunction of adipose tissues, we sought to determine adipokine levels in subcutaneous and visceral adipose tissues (SAT and VAT). MATERIAL AND METHODS Gene and protein expression levels of leptin, adiponectin, and resistin were analysed in SAT and VAT of normal-weight and overweight/obese women, subclassified according to insulin resistance index, triglyceride, total, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol levels into metabolically healthy and "at risk" groups. RESULTS Compared with normal-weight women, obese women had higher serum leptin levels (p < 0.05), as well as increased leptin gene and protein expression in VAT. Conversely, expression levels of leptin were lower in SAT of obese women, and minor in the SAT of "at risk" groups of women, compared with weight-matched healthy groups. In addition, lower adiponectin levels were detected in SAT of metabolically healthy obese women (p < 0.01), and lower in SAT and VAT (p < 0.05) of "at risk" obese women compared to healthy, obese women. Significant differences in resistin levels were only observed in obese women; resistin gene expression was higher in VAT and SAT of obese, compared to normal-weight women. However, higher gene expression was not consistent with protein expression of resistin. CONCLUSIONS Low adiponectin in both examined adipose tissues and inappropriate leptin expression levels in SAT appear to be important characteristics of obesity-related metabolic syndrome. Intriguingly, this adipokine dysregulation is primary seen in SAT, suggesting that endocrine dysfunction in this abdominal depot may be an early risk sign of metabolic syndrome.
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Affiliation(s)
- Aleksandra Korac
- Center for Electron Microscopy, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Biljana Srdic-Galic
- Department of Anatomy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Andjelika Kalezic
- Institute for Biological Research “Sinisa Stankovic”, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Ana Stancic
- Institute for Biological Research “Sinisa Stankovic”, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Vesna Otasevic
- Institute for Biological Research “Sinisa Stankovic”, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Bato Korac
- Institute for Biological Research “Sinisa Stankovic”, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Jankovic
- Institute for Biological Research “Sinisa Stankovic”, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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23
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Tian X, Li Y, Liu J, Lin Q, Yang Q, Tu J, Wang J, Li J, Ning X. Epidemiology of Isolated Impaired Glucose Tolerance Among Adults Aged Above 50 Years in Rural China. Diabetes Metab Syndr Obes 2021; 14:4067-4078. [PMID: 34557009 PMCID: PMC8453426 DOI: 10.2147/dmso.s330470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/04/2021] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Isolated impaired glucose tolerance (i-IGT) is a subtype of prediabetes in which an individual demonstrates elevated 2-h post-glucose load glucose levels but normal fasting plasma glucose levels. However, few studies have explored the prevalence and risk factors of i-IGT among adults in rural China. Thus, we aimed to explore the prevalence and risk factors of i-IGT among adults ≥50 years old in a low-income, rural population in China. MATERIALS AND METHODS Individuals aged ≥50 years with normal fasting plasma glucose levels were included in the final analysis. Fasting and 2-h venous blood samples were collected to assess the selected parameter measurements. RESULTS A total of 2175 individuals were included in this study. The i-IGT prevalence was 22.9% and significantly higher among females than among males (P<0.05). Older age [odds ratio (OR), 1.606; 95% confidence interval (CI), 1.101-2.342; P=0.014), hypertension (OR, 1.554; 95% CI, 1.152-2.019; P=0.004), and central obesity (OR, 1.395; 95% CI, 1.099-1.771; P=0.006) were associated with i-IGT. Moreover, white blood cell (OR, 1.089; 95% CI, 1.009-1.175; P=0.029), high-sensitivity C-reactive protein (OR, 1.049; 95% CI, 1.020-1.078; P=0.001), serum uric acid (OR, 1.0003; 95% CI, 1.001-1.004; P=0.001), triglyceride (OR, 1.540; 95% CI, 1.105-2.147; P=0.011), and alanine aminotransferase (OR, 1.012; 95% CI, 1.004-1.021; P=0.004) levels were also linked to i-IGT in the analyzed population. CONCLUSION Health promotion education and a standardized approach to managing body weight, BP, and lipid and uric acid levels would benefit this low-income population in rural China for reducing the risk of cardiovascular disease.
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Affiliation(s)
- Xiaobing Tian
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
| | - Yan Li
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Department of Anesthesiology, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
| | - Jie Liu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, People’s Republic of China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, People’s Republic of China
| | - Qiuxing Lin
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, People’s Republic of China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, People’s Republic of China
| | - Qiaoxia Yang
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
| | - Jun Tu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, People’s Republic of China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, People’s Republic of China
| | - Jinghua Wang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, People’s Republic of China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, People’s Republic of China
| | - Jidong Li
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Department of Neurosurgery, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
| | - Xianjia Ning
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China
- Center of Clinical Epidemiology & Evidence-Based Medicine, The Jizhou People’s Hospital, Tianjin, People’s Republic of China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, People’s Republic of China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, People’s Republic of China
- Correspondence: Xianjia Ning; Jidong Li Email ;
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van Loenen MR, Geenen B, Arnoldussen IAC, Kiliaan AJ. Ghrelin as a prominent endocrine factor in stress-induced obesity. Nutr Neurosci 2020; 25:1413-1424. [PMID: 33373270 DOI: 10.1080/1028415x.2020.1863740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Objectives: Ghrelin acts on a variety of central- and peripheral organs causing an orexigenic effect, conclusively followed by increased caloric intake. Recent studies have indicated that ghrelin's function as an orexigenic agent does not entirely reflect the full functional properties of the peptide. Specifically, ghrelin regulates stress-hormone synthesis and secretion therewith affecting the stress-axis. The role of stress in the development of obesity has been extensively studied. However, the orexigenic and underlying stress-regulatory effect of ghrelin has not yet been further considered in the development of stress-induced obesity.Methods: Therefore, this review aims to accentuate the potential of ghrelin as a factor in the pathological development of stress-induced obesity.Results: In this review we discuss (1) the ghrelin-mediated intracellular cascades and elucidate the overall bioactivation of the peptide, and (2) the mechanisms of ghrelin signalling and regulation within the central nervous system and the gastro-intestinal system.Discussion: These biological processes will be ultimately discussed in relation to the pathogenesis of stress-induced obesity.
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Affiliation(s)
- Mark R van Loenen
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Preclinical Imaging Center PRIME, Nijmegen, Netherlands
| | - Bram Geenen
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Preclinical Imaging Center PRIME, Nijmegen, Netherlands
| | - Ilse A C Arnoldussen
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Preclinical Imaging Center PRIME, Nijmegen, Netherlands
| | - Amanda J Kiliaan
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Preclinical Imaging Center PRIME, Nijmegen, Netherlands
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25
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Fagenson AM, Pitt HA, Moten AS, Karhadkar SS, Di Carlo A, Lau KN. Fatty liver: The metabolic syndrome increases major hepatectomy mortality. Surgery 2020; 169:1054-1060. [PMID: 33358472 DOI: 10.1016/j.surg.2020.11.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/01/2020] [Accepted: 11/17/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND As the obesity epidemic worsens, the prevalence of fatty liver disease has increased. However, minimal data exist on the impact of combined fatty liver and metabolic syndrome on hepatectomy outcomes. Therefore, the aim of this analysis is to measure the outcomes of patients who do and do not have a fatty liver undergoing hepatectomy in the presence and absence of the metabolic syndrome. METHODS Patients with fatty and normal livers undergoing major hepatectomy (≥3 segments) were identified in the 2014 to 2018 American College of Surgeon National Surgical Quality Improvement Program database. Patients undergoing partial hepatectomy and those with missing liver texture data were excluded. Propensity matching was used and adjusted for multiple variables. A subgroup analysis stratified by the metabolic syndrome (body mass index ≥30 kg/m2, hypertension and diabetes) was performed. Demographics and outcomes were compared by χ2 and Mann-Whitney tests. RESULTS Of 2,927 hepatectomies, 30% of patients (N = 863) had a fatty liver. The median body mass index was 28.6, and the metabolic syndrome was present in 6.3% of patients (N = 184). After propensity matching, 863 patients with fatty and 863 with normal livers were compared. Multiple outcomes were significantly worse in patients with fatty livers (P <.05), including serious morbidity (32% vs 24%), postoperative invasive biliary procedures (15% vs 10%), organ space infections (11% vs 7.8%), and pulmonary complications. Patients with fatty livers and the metabolic syndrome had significantly increased postoperative cardiac arrests, pulmonary embolisms, and mortality (P < .05). CONCLUSION Fatty liver disease is associated with significantly worse outcomes after major hepatectomy. The metabolic syndrome confers an increased risk of postoperative mortality.
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Affiliation(s)
| | - Henry A Pitt
- Department of Surgery, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Ambria S Moten
- Department of Surgery, Temple University Hospital, Philadelphia, PA
| | | | - Antonio Di Carlo
- Department of Surgery, Temple University Hospital, Philadelphia, PA
| | - Kwan N Lau
- Department of Surgery, Temple University Hospital, Philadelphia, PA.
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26
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Singh AK, Dawra S, Rana S, Gupta P, Samanta J, Sinha SK, Gupta V, Yadav TD, Kochhar R. Can serum resistin predict severity of acute pancreatitis? Biomarkers 2020; 26:31-37. [PMID: 33089708 DOI: 10.1080/1354750x.2020.1841295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Acute pancreatitis (AP) is a common disorder with high mortality in severe cases. Several markers have been studied to predict development of severe AP (SAP) including serum resistin with conflicting results. This study aimed at assessing the role of baseline serum resistin levels in predicting SAP. METHODS This prospective study collected data from 130 AP patients from July 2017 to Nov 2018. Parameters measured included demographic profile, serum resistin at admission, severity scores, hospital stay, surgery, and mortality. Patients were divided into two groups, severe and non-severe AP. The two groups were compared for baseline characteristics, serum resistin levels, hospital stay, surgery and mortality. RESULTS Among 130 patients, 53 patients had SAP. SAP patients had higher BMI, baseline CRP, APACHE II and CTSI scores (p-value 0.045, <0.001, <0.001 and 0.001, respectively). Both groups had comparable serum resistin levels. Serum resistin levels were also not different for obese and non-obese patients (p-value = 0.62). On multivariate analysis, BMI and high APACHE II score and CRP levels were found to independently predict SAP. CONCLUSION We found that serum resistin is not a useful marker for predicting the severity of AP and does not correlate with increasing body weight.
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Affiliation(s)
- Anupam Kumar Singh
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Saurabh Dawra
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Satyavati Rana
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Gupta
- Section of GI radiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jayanta Samanta
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Saroj K Sinha
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vikas Gupta
- Department of Surgical Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Thakur Deen Yadav
- Department of Surgical Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Kochhar
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Kumar V, Singh J, Bala K, Singh J. Association of resistin (rs3745367) and urotensin II (rs228648 and rs2890565) gene polymorphisms with risk of type 2 diabetes mellitus in Indian population. Mol Biol Rep 2020; 47:9489-9497. [PMID: 33269434 DOI: 10.1007/s11033-020-05991-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/06/2020] [Indexed: 01/20/2023]
Abstract
Insulin resistance may become the most powerful predictor of future development of type 2 diabetes mellitus (T2DM) and a therapeutic target for the treatment of the same. Both Resistin, an adipose derived peptide hormone and Urotensin II a potent vasoconstrictor, are reported to be involved in the development of insulin resistance and T2DM but the results remain contradictory. Therefore, investigations were carried out to study the association of T2DM and single nucleotide polymorphism (SNP) in Resistin (RETN) gene at rs3745367 (+ 299 G > A) and Urotensin II (UTS2) gene at rs228648 (+ 143 G > A) and rs2890565 (+ 3836 C > T) in a North Indian population. Method: The present case-control study, conducted from August 2017 to July 2020, involved 168 T2DM patients and 102 healthy controls. SNPs rs3745367, rs228648 and rs2890565 were amplified from genomic DNA in the studied samples by polymerase chain reaction (PCR) using specific primers. The amplified products were genotyped by restriction fragment length polymorphism (RFLP) using particular restriction endonucleases. Clinical parameters viz. glycosylated haemoglobin (HbA1c), fasting blood glucose (FBG), high density lipoprotein cholesterol (HDL-C), triglycerides (TG), total cholesterol (CHL) and fasting insulin were determined by enzymatic methods. Result and conclusion: A statistically significant association between T2DM and RETN gene at SNP rs3745367 (p = 0.001) and UTS2 gene at SNP rs2890565 (p = 0.001) was observed. In RETN gene SNP rs3745367, insulin and homeostasis model assessment of insulin resistance (HOMA-IR) were found to be higher in GA + AA combined genotype than in GG genotype for T2DM subjects. Regression analysis revealed that SNP rs2890565 and HOMA-IR were independently associated with the risk of development of T2DM when three SNPs were taken as independent variable adjusted for clinical variables. Among four haplotypes, A/T was found associated with increased risk of T2DM as determined for rs228648 and rs2890565 of UTS2 gene. It can be concluded from these results that polymorphism at rs3745367 of RETN gene and at rs2890565 of UTS2 gene are associated with risk of T2DM in North Indian population.
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Affiliation(s)
- Vikas Kumar
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Jaswinder Singh
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Kiran Bala
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Jasbir Singh
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India.
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Salman MA, Mikhail HMS, Abdelsalam A, Sultan AAEA, El-ghobary M, Ismail AAM, Abouelregal TE, AbdelAal AA, Shaaban HED, GabAllah GM, Tourky M, Salman AA. Improvement of Systemic Adipokines and Adipokine Hepatic Gene Expression After Laparoscopic Sleeve Gastrectomy. Bariatr Surg Pract Patient Care 2020. [DOI: https://doi.org/10.1089/bari.2019.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
| | | | - Ahmed Abdelsalam
- General Surgery Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Mohamed El-ghobary
- Internal Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | | | | | - Hossam El-Din Shaaban
- Gastroenterology Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Ghada M.K. GabAllah
- Medical Biochemistry Department, Faculty of Medicine, Menoufia University, Egypt
| | - Mohamed Tourky
- General Surgery, Alawi Tunsi Hospital, Makkah, Saudi Arabia
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29
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Salman MA, Mikhail HMS, Abdelsalam A, Sultan AAEA, El-ghobary M, Ismail AAM, Abouelregal TE, AbdelAal AA, Shaaban HED, GabAllah GM, Tourky M, Salman AA. Improvement of Systemic Adipokines and Adipokine Hepatic Gene Expression After Laparoscopic Sleeve Gastrectomy. Bariatr Surg Pract Patient Care 2020. [DOI: 10.1089/bari.2019.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - Ahmed Abdelsalam
- General Surgery Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Mohamed El-ghobary
- Internal Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | | | | | - Hossam El-Din Shaaban
- Gastroenterology Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Ghada M.K. GabAllah
- Medical Biochemistry Department, Faculty of Medicine, Menoufia University, Egypt
| | - Mohamed Tourky
- General Surgery, Alawi Tunsi Hospital, Makkah, Saudi Arabia
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Kothari C, Diorio C, Durocher F. The Importance of Breast Adipose Tissue in Breast Cancer. Int J Mol Sci 2020; 21:ijms21165760. [PMID: 32796696 PMCID: PMC7460846 DOI: 10.3390/ijms21165760] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/31/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023] Open
Abstract
Adipose tissue is a complex endocrine organ, with a role in obesity and cancer. Adipose tissue is generally linked to excessive body fat, and it is well known that the female breast is rich in adipose tissue. Hence, one can wonder: what is the role of adipose tissue in the breast and why is it required? Adipose tissue as an organ consists of adipocytes, an extracellular matrix (ECM) and immune cells, with a significant role in the dynamics of breast changes throughout the life span of a female breast from puberty, pregnancy, lactation and involution. In this review, we will discuss the importance of breast adipose tissue in breast development and its involvement in breast changes happening during pregnancy, lactation and involution. We will focus on understanding the biology of breast adipose tissue, with an overview on its involvement in the various steps of breast cancer development and progression. The interaction between the breast adipose tissue surrounding cancer cells and vice-versa modifies the tumor microenvironment in favor of cancer. Understanding this mutual interaction and the role of breast adipose tissue in the tumor microenvironment could potentially raise the possibility of overcoming breast adipose tissue mediated resistance to therapies and finding novel candidates to target breast cancer.
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Affiliation(s)
- Charu Kothari
- Department of Molecular Medicine, Faculty of Medicine, Laval University, Quebec, QC G1T 1C2, Canada;
- Cancer Research Centre, CHU de Quebec Research Centre, Quebec, QC G1V 4G2, Canada;
| | - Caroline Diorio
- Cancer Research Centre, CHU de Quebec Research Centre, Quebec, QC G1V 4G2, Canada;
- Department of Preventive and Social Medicine, Faculty of Medicine, Laval University, Quebec, QC G1T 1C2, Canada
| | - Francine Durocher
- Department of Molecular Medicine, Faculty of Medicine, Laval University, Quebec, QC G1T 1C2, Canada;
- Cancer Research Centre, CHU de Quebec Research Centre, Quebec, QC G1V 4G2, Canada;
- Correspondence: ; Tel.: +1-(418)-525-4444 (ext. 48508)
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Jiang S, Teague AM, Tryggestad JB, Lyons TJ, Chernausek SD. Fetal circulating human resistin increases in diabetes during pregnancy and impairs placental mitochondrial biogenesis. Mol Med 2020; 26:76. [PMID: 32762639 PMCID: PMC7409642 DOI: 10.1186/s10020-020-00205-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 07/27/2020] [Indexed: 12/16/2022] Open
Abstract
Background Diabetes during pregnancy affects placental mitochondrial content and function, which has the potential to impact fetal development and the long-term health of offspring. Resistin is a peptide hormone originally discovered in mice as an adipocyte-derived factor that induced insulin resistance. In humans, resistin is primarily secreted by monocytes or macrophages. The regulation and roles of human resistin in diabetes during pregnancy remain unclear. Methods Fetal resistin levels were measured in cord blood from pregnancies with (n = 42) and without maternal diabetes (n = 81). Secretion of resistin from cord blood mononuclear cells (CBMCs) was measured. The actions of human resistin in mitochondrial biogenesis were determined in placental trophoblastic cells (BeWo cells) or human placental explant. Results Concentrations of human resistin in cord sera were higher in diabetic pregnancies (67 ng/ml) compared to healthy controls (50 ng/ml, P < 0.05), and correlated (r = 0.4, P = 0.002) with a measure of maternal glycemia (glucose concentration 2 h post challenge). Resistin mRNA was most abundant in cord blood mononuclear cells (CBMCs) compared with placenta and mesenchymal stem cells (MSCs). Secretion of resistin from cultured CBMCs was increased in response to high glucose (25 mM). Exposing BeWo cells or human placental explant to resistin decreased expression of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), mitochondrial abundance, and ATP production. Conclusions Resistin is increased in fetal circulation of infants exposed to the diabetic milieu, potentially reflecting a response of monocytes/macrophages to hyperglycemia and metabolic stresses associated with diabetes during pregnancy. Increased exposure to resistin may contribute to mitochondrial dysfunction and aberrant energy metabolism characteristic of offspring exposed to diabetes in utero.
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Affiliation(s)
- Shaoning Jiang
- Department of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, 1200 Children's Ave Suite 4500, Oklahoma City, OK, 73104, USA.
| | - April M Teague
- Department of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, 1200 Children's Ave Suite 4500, Oklahoma City, OK, 73104, USA
| | - Jeanie B Tryggestad
- Department of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, 1200 Children's Ave Suite 4500, Oklahoma City, OK, 73104, USA
| | - Timothy J Lyons
- Division of Endocrinology, Diabetes, and Metabolic Diseases at the Medical University of South Carolina, Charleston, SC, USA
| | - Steven D Chernausek
- Department of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, 1200 Children's Ave Suite 4500, Oklahoma City, OK, 73104, USA
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Paraiso IL, Revel JS, Choi J, Miranda CL, Lak P, Kioussi C, Bobe G, Gombart AF, Raber J, Maier CS, Stevens JF. Targeting the Liver-Brain Axis with Hop-Derived Flavonoids Improves Lipid Metabolism and Cognitive Performance in Mice. Mol Nutr Food Res 2020; 64:e2000341. [PMID: 32627931 PMCID: PMC8693899 DOI: 10.1002/mnfr.202000341] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/16/2020] [Indexed: 08/18/2023]
Abstract
SCOPE Sphingolipids including ceramides are implicated in the pathogenesis of obesity and insulin resistance. Correspondingly, inhibition of pro-inflammatory and neurotoxic ceramide accumulation prevents obesity-mediated insulin resistance and cognitive impairment. Increasing evidence suggests the farnesoid X receptor (FXR) is involved in ceramide metabolism, as bile acid-FXR crosstalk controls ceramide levels along the gut-liver axis. The authors previously reported that FXR agonist xanthohumol (XN), the principal prenylated flavonoid in hops (Humulus lupulus), and its hydrogenated derivatives, α,β-dihydroxanthohumol (DXN), and tetrahydroxanthohumol (TXN), ameliorated obesity-mediated insulin resistance, and cognitive impairment in mice fed a high-fat diet. METHODS AND RESULTS To better understand how the flavonoids improve both, lipid and bile acid profiles in the liver are analyzed, sphingolipid relative abundance in the hippocampus is measured, and linked them to metabolic and neurocognitive performance. XN, DXN, and TXN (30 mg kg-1 BW per day) decrease ceramide content in liver and hippocampus; the latter is linked to improvements in spatial learning and memory. In addition, XN, DXN, and TXN decrease hepatic cholesterol content by enhancing de novo synthesis of bile acids. CONCLUSION These observations suggest that XN, DXN, and TXN may alleviate obesity-induced metabolic and neurocognitive impairments by targeting the liver-brain axis.
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Affiliation(s)
- Ines L Paraiso
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
| | - Johana S Revel
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
| | - Cristobal L Miranda
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
| | - Parnian Lak
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Chrissa Kioussi
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Animal & Rangeland Sciences, Oregon State University, Corvallis, OR, 97331, USA
| | - Adrian F Gombart
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Biochemistry & Biophysics, Oregon State University, Corvallis, OR, 97331, USA
| | - Jacob Raber
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
- Department of Behavioral Neuroscience, Neurology, and Radiation Medicine, Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Claudia S Maier
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
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Rostamtabar M, Esmaeilzadeh S, Tourani M, Rahmani A, Baee M, Shirafkan F, Saleki K, Mirzababayi SS, Ebrahimpour S, Nouri HR. Pathophysiological roles of chronic low-grade inflammation mediators in polycystic ovary syndrome. J Cell Physiol 2020; 236:824-838. [PMID: 32617971 DOI: 10.1002/jcp.29912] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/28/2020] [Accepted: 06/15/2020] [Indexed: 12/29/2022]
Abstract
Polycystic ovary syndrome (PCOS) is the most common hormonal imbalance disease in reproductive-aged women. Its basic characteristics are ovulatory dysfunction and ovarian overproduction of androgens that lead to severe symptoms such as insulin resistance, hirsutism, infertility, and acne. Notwithstanding the disease burden, its underlying mechanisms remain unknown, and no causal therapeutic exists. In recent years, further studies showed that inflammation processes are involved in ovulation and play a key role in ovarian follicular dynamics. Visceral adipose tissue can cause inflammatory response and maintenance of the inflammation state in adipocytes by augmented production of inflammatory cytokines, monocyte chemoattractant proteins, and recruitment of the immune cell. Therefore, the PCOS can be related to a low-grade inflammation state and inflammatory markers. Investigating the inflammatory processes and mediators that contribute to the commencement and development of PCOS can be a critical step for better understanding the pathophysiology of the disease and its treatment through inhibition or control of related pathways. In the present review, we discuss the pathophysiological roles of chronic low-grade inflammation mediators including inflammasome-related cytokines, interleukin-1β (IL-1β), and IL-18 in PCOS development.
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Affiliation(s)
- Maryam Rostamtabar
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Sedigheh Esmaeilzadeh
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Science, Babol, Iran
| | - Mehdi Tourani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Abolfazl Rahmani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Masoud Baee
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Fatemeh Shirafkan
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Kiarash Saleki
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | | | - Soheil Ebrahimpour
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Hamid Reza Nouri
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Science, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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Yao H, Fan C, Lu Y, Fan X, Xia L, Li P, Wang R, Tang T, Wang Y, Qi K. Alteration of gut microbiota affects expression of adiponectin and resistin through modifying DNA methylation in high-fat diet-induced obese mice. GENES & NUTRITION 2020; 15:12. [PMID: 32586265 PMCID: PMC7318443 DOI: 10.1186/s12263-020-00671-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/16/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Adiponectin and resistin are typically secreted by the adipose tissue and are abnormally expressed in obesity. However, the underlying influential factors and mechanisms are to be elucidated. It is well known that the expression of genes is regulated by epigenetics while gut microbiota participates in epigenetic processes through its metabolites such as folate, biotin, and short-chain fatty acids (SCFAs). Therefore, we supposed that alteration of gut microbiota might affect the transcriptional expression of adiponectin and resistin through epigenetic regulation in obesity. METHODS C57BL/6J mice were fed either a high-fat diet (34.9% fat by wt., 60% kcal) or a normal-fat diet (4.3% fat by wt., 10% kcal) for 16 weeks, with ampicillin and neomycin delivered via drinking water to interfere with gut microbiota development. Fecal microbiota was analyzed by 16S rRNA high-throughput sequencing. The mRNA expression levels of genes were measured by real-time quantitative RT-PCR. SCFA contents in feces were examined using gas chromatography. RESULTS Alteration of the gut microbiota induced by antibiotic use, characterized by a dramatic reduction of the phylum Firmicutes and Actinobacteria and an increase of Proteobacteria with reductions of genera including Lactobacillus, norank_f_Bacteroidales_S24-7_group, Alistipes, Desulfovibrio, Helicobacter, etc., and increases in Bacteroides, Enterobacter, Klebsiella, inhibited the body weight gain in mice fed the high-fat diet instead of the normal-fat diet. The mRNA expression of adiponectin and resistin was upregulated by antibiotic use in mice fed the high-fat diet, accompanied by increased expression of fat oxidation and thermogenesis-related genes (PPAR-α, Pgc-1α, and Atgl) in the fat and/or liver, whereas no change in the expression of adiponectin and resistin was found in mice fed the normal-fat diet. Furthermore, antibiotic use reduced DNA methylation fractions of the adiponectin and resistin promoters and downregulated the expression of DNA methyltransferase 1 and 3a (DNMT1 and DNMT3a) with the high-fat diet feeding. CONCLUSION Alteration of gut microbiota induced by antibiotic use may affect the expression of adiponectin and resistin in mice fed the high-fat diet by modifying promoter DNA methylation, thus leading to increased fatty acid oxidation and less body weight gain.
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Affiliation(s)
- Hongyang Yao
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Chaonan Fan
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Yuanyuan Lu
- grid.24696.3f0000 0004 0369 153XDepartment of Child Health Care Center, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Xiuqin Fan
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Lulu Xia
- grid.24696.3f0000 0004 0369 153XDepartment of Diet and Nutrition, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Ping Li
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Rui Wang
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Tiantian Tang
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Yuanyuan Wang
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
| | - Kemin Qi
- grid.24696.3f0000 0004 0369 153XLaboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 100045 China
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Obesity, Bioactive Lipids, and Adipose Tissue Inflammation in Insulin Resistance. Nutrients 2020; 12:nu12051305. [PMID: 32375231 PMCID: PMC7284998 DOI: 10.3390/nu12051305] [Citation(s) in RCA: 178] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/11/2022] Open
Abstract
Obesity is a major risk factor for the development of insulin resistance and type 2 diabetes. The exact mechanism by which adipose tissue induces insulin resistance is still unclear. It has been demonstrated that obesity is associated with the adipocyte dysfunction, macrophage infiltration, and low-grade inflammation, which probably contributes to the induction of insulin resistance. Adipose tissue synthesizes and secretes numerous bioactive molecules, namely adipokines and cytokines, which affect the metabolism of both lipids and glucose. Disorders in the synthesis of adipokines and cytokines that occur in obesity lead to changes in lipid and carbohydrates metabolism and, as a consequence, may lead to insulin resistance and type 2 diabetes. Obesity is also associated with the accumulation of lipids. A special group of lipids that are able to regulate the activity of intracellular enzymes are biologically active lipids: long-chain acyl-CoAs, ceramides, and diacylglycerols. According to the latest data, the accumulation of these lipids in adipocytes is probably related to the development of insulin resistance. Recent studies indicate that the accumulation of biologically active lipids in adipose tissue may regulate the synthesis/secretion of adipokines and proinflammatory cytokines. Although studies have revealed that inflammation caused by excessive fat accumulation and abnormalities in lipid metabolism can contribute to the development of obesity-related insulin resistance, further research is needed to determine the exact mechanism by which obesity-related insulin resistance is induced.
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An F, Zhang L, Gao H, Wang J, Liu C, Tian Y, Ma C, Zhao J, Wang K, Wang J. Variants in RETN gene are associated with steroid-induced osteonecrosis of the femoral head risk among Han Chinese people. J Orthop Surg Res 2020; 15:96. [PMID: 32143662 PMCID: PMC7060642 DOI: 10.1186/s13018-020-1557-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/14/2020] [Indexed: 12/13/2022] Open
Abstract
Background Gene polymorphism has an important influence on RETN gene expression level, and the increased level of resistin encoded in RETN will lead to metabolic disorder, especially lipid metabolism. Moreover, steroid-induced osteonecrosis of the femoral head (steroid-induced ONFH) is closely related to lipid metabolism level, so this study is intended to explore the relationship of RETN polymorphisms with susceptibility to steroid-induced ONFH in the Chinese Han population. Methods In this case-control study, eight single-nucleotide polymorphisms (SNPs) of RETN were genotyped by the Agena MassARRAY system in 199 steroid-induced ONFH patients and 200 healthy controls. The relationship between RETN polymorphisms and steroid-induced ONFH risk was assessed using genetic models and haplotype analyses. Odds ratio (OR) and 95% confidence intervals (CIs) were obtained by logistic regression adjusted for age. Results We found significant differences in the distribution of HDL-C, TG/HDL-C, and LDL-C/HDL-C between the patients and the control group (p < 0.05). In allele model and genotype model analysis, rs34861192, rs3219175, rs3745368, and rs1477341 could reduce the risk of steroid-induced ONFH. Further stratified analysis showed that rs3745367 was related to the clinical stage of patients, and rs1477341 was significantly correlated with an increased TG level and a decreased TC/HDL-C level. The linkage analysis showed that two SNPs (rs34861192 and rs3219175) in RETN even significant linkage disequilibrium. Conclusions Our results provide the firstly evidence that RETN gene polymorphisms were associated with a reduced risk of steroid-induced ONFH in Chinese Han population.
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Affiliation(s)
- Feimeng An
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Litian Zhang
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Hongyan Gao
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Jiaqi Wang
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Chang Liu
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Ye Tian
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Chao Ma
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Jian Zhao
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.,Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Kunzheng Wang
- The Second Affiliated Hospital of Xi'an Jiaotong University, #157 Xi Wu Road, Xi'an, 710004, Shaanxi Province, China.
| | - Jianzhong Wang
- Department of Trauma Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China.
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Yang S, Cao C, Xie Z, Zhou Z. Analysis of potential hub genes involved in the pathogenesis of Chinese type 1 diabetic patients. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:295. [PMID: 32355739 PMCID: PMC7186604 DOI: 10.21037/atm.2020.02.171] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Type 1 diabetes is an autoimmune disease strongly related to genetic factors. Although studies on T1D susceptibility genes have achieved great progress, the molecular mechanism of T1D remains to be explained. Methods To explore the underlying mechanisms of T1D, bioinformatic analysis based on a microarray database was used to determine the key biomarkers of T1D as well as their biofunctions and interactions. The microarray database GSE55100 was downloaded from the Gene Expression Omnibus (GEO). Differentially expressed genes (DEGs) were processed by packages in R Software. The database for Annotation, Visualization, and Integrated Discovery (DAVID, version 6.8) was used to conduct gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. The protein-protein interaction network was analyzed with the Search Tool for the Retrieval of Interacting Genes (STRING), and the module analysis was performed using Cytoscape. Results Seventy-eight DEGs and 13 hub genes were identified. The biofunctions and pathways of these DEGs were enriched in immune response, extracellular exosome, cytokine activity and antigen processing and presentation. Thirteen DEGs with MCODE score ≥2 were selected as hub genes including MMP9, ARG1, CAMP, CHI3L1, CRISP3, SLPI, LCN2, PGLYRP1, LTF, RETN, CEACAM1, CEACAM8 and MS4A3. Conclusions The identification and analyses of the DEGs and hub genes from database GSE55100 provide novel prospectives of the pathogenesis of T1D.
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Affiliation(s)
- Shuting Yang
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Diabetes Immunology, Central South University, Ministry of Education, Changsha 410011, China.,National Clinical Research Center for Metabolic Diseases, Changsha 410011, China
| | - Chuqing Cao
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Diabetes Immunology, Central South University, Ministry of Education, Changsha 410011, China.,National Clinical Research Center for Metabolic Diseases, Changsha 410011, China
| | - Zhiguo Xie
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Diabetes Immunology, Central South University, Ministry of Education, Changsha 410011, China.,National Clinical Research Center for Metabolic Diseases, Changsha 410011, China
| | - Zhiguang Zhou
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Diabetes Immunology, Central South University, Ministry of Education, Changsha 410011, China.,National Clinical Research Center for Metabolic Diseases, Changsha 410011, China
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Chait A, den Hartigh LJ. Adipose Tissue Distribution, Inflammation and Its Metabolic Consequences, Including Diabetes and Cardiovascular Disease. Front Cardiovasc Med 2020; 7:22. [PMID: 32158768 PMCID: PMC7052117 DOI: 10.3389/fcvm.2020.00022] [Citation(s) in RCA: 564] [Impact Index Per Article: 141.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/10/2020] [Indexed: 12/13/2022] Open
Abstract
Adipose tissue plays essential roles in maintaining lipid and glucose homeostasis. To date several types of adipose tissue have been identified, namely white, brown, and beige, that reside in various specific anatomical locations throughout the body. The cellular composition, secretome, and location of these adipose depots define their function in health and metabolic disease. In obesity, adipose tissue becomes dysfunctional, promoting a pro-inflammatory, hyperlipidemic and insulin resistant environment that contributes to type 2 diabetes mellitus (T2DM). Concurrently, similar features that result from adipose tissue dysfunction also promote cardiovascular disease (CVD) by mechanisms that can be augmented by T2DM. The mechanisms by which dysfunctional adipose tissue simultaneously promote T2DM and CVD, focusing on adipose tissue depot-specific adipokines, inflammatory profiles, and metabolism, will be the focus of this review. The impact that various T2DM and CVD treatment strategies have on adipose tissue function and body weight also will be discussed.
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Affiliation(s)
- Alan Chait
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Laura J den Hartigh
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States
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Liu Z, Xu L, Xing M, Xu X, Wei J, Wang J, Kang W. Trelagliptin succinate: DPP-4 inhibitor to improve insulin resistance in adipocytes. Biomed Pharmacother 2020; 125:109952. [PMID: 32036216 DOI: 10.1016/j.biopha.2020.109952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 01/18/2020] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
Trelagliptin inhibits the enzyme dipeptidyl-4 (DPP-4) to treat type 2 diabetes and it may possess the potential to improve insulin resistance. However, the molecular mechanism is not known. In this study, the effect of trelagliptin succinate in improving insulin resistance was investigated. The differentiation system of 3T3-L1 mouse preadipocytes was used to determine the content of adipokines and the content of GLUT4 in the outer membrane. The expression of AKT, P-AKT, IRS-1 and P-IRS-1 in differentiated 3T3-L1 adipocytes was determined by western blotting. Our results demonstrated that trelagliptin succinate increased the expression of AKT, P-AKT, IRS-1 and P-IRS-1 in the PI-3K/AKT insulin signaling pathway. These events promote the trans-membrane function of GLUT4 and concomitant glucose intake in adipocytes. In addition, the secretion of free fatty acids and resistin were decreased. In conclusion, our study suggested that trelagliptin succinate improved insulin resistance in adipocytes via regulation of PI-3K/AKT/GLUT4 insulin signaling pathway.
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Affiliation(s)
- Zhenhua Liu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Lanting Xu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Meimei Xing
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Xiaojie Xu
- Zhengzhou Mingze Pharmaceutical Technology Co., Ltd. Zhengzhou, 450000, China
| | - Jinfeng Wei
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Jinmei Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China.
| | - Wenyi Kang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China.
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Ibrahim SM, Bastawy AA. The Relevance of Single-nucleotide Polymorphism +62 G>A to the Expression of Resistin Gene Affecting Serum Resistin Levels in Metabolic Syndrome in the Egyptian Population. Curr Pharm Biotechnol 2019; 21:626-634. [PMID: 31820685 DOI: 10.2174/1389201021666191210122851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Metabolic Syndrome (MS) is a clinical condition consisting of risk factors associated with type two diabetes and developing cardiovascular disease. It has been suggested that resistin is a linkage between obesity, inflammation and type two diabetes. This study aims to investigate whether Resistin Gene (RETN) polymorphism (+62G>A) is linked to MS and resistin levels among the Egyptian population. METHODS This study was performed with 310 Egyptian volunteers: 160 MS subjects and 150 controls. Anthropometric parameters and biochemical variables were determined. The RETN +62G>A polymorphism was genotyped by PCR-RFLP technique. RESULTS The resistin levels of the MS group were significantly higher than those of the control group. Resistin levels were positively correlated with anthropometric parameters and liver biomarkers in the MS group. According to RETN +62G>A polymorphism, carriers with the A allele (GA/AA) had significantly increased resistin levels than subjects with the GG genotype, consequently, the RETN +62G >A polymorphism was found to be related to MS, biochemical parameters and anthropometric variables. CONCLUSION These findings propose that the RETN +62G>A polymorphism has a great impact on the circulating resistin concentrations, and that resistin levels are strongly related to MS. Therefore, this RETN polymorphism is related to the risk of the prevalence of MS in the Egyptians.
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Affiliation(s)
- Sherine M Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
| | - Afaf A Bastawy
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
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Immune-Deficient Pfp/Rag2 -/- Mice Featured Higher Adipose Tissue Mass and Liver Lipid Accumulation with Growing Age than Wildtype C57BL/6N Mice. Cells 2019; 8:cells8080775. [PMID: 31349725 PMCID: PMC6721582 DOI: 10.3390/cells8080775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/13/2019] [Accepted: 07/22/2019] [Indexed: 02/08/2023] Open
Abstract
Aging is a risk factor for adipose tissue dysfunction, which is associated with inflammatory innate immune mechanisms. Since the adipose tissue/liver axis contributes to hepatosteatosis, we sought to determine age-related adipose tissue dysfunction in the context of the activation of the innate immune system fostering fatty liver phenotypes. Using wildtype and immune-deficient mice, we compared visceral adipose tissue and liver mass as well as hepatic lipid storage in young (ca. 14 weeks) and adult (ca. 30 weeks) mice. Adipocyte size was determined as an indicator of adipocyte function and liver steatosis was quantified by hepatic lipid content. Further, lipid storage was investigated under normal and steatosis-inducing culture conditions in isolated hepatocytes. The physiological age-related increase in body weight was associated with a disproportionate increase in adipose tissue mass in immune-deficient mice, which coincided with higher triglyceride storage in the liver. Lipid storage was similar in isolated hepatocytes from wildtype and immune-deficient mice under normal culture conditions but was significantly higher in immune-deficient than in wildtype hepatocytes under steatosis-inducing culture conditions. Immune-deficient mice also displayed increased inflammatory, adipogenic, and lipogenic markers in serum and adipose tissue. Thus, the age-related increase in body weight coincided with an increase in adipose tissue mass and hepatic steatosis. In association with a (pro-)inflammatory milieu, aging thus promotes hepatosteatosis, especially in immune-deficient mice.
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Acquarone E, Monacelli F, Borghi R, Nencioni A, Odetti P. Resistin: A reappraisal. Mech Ageing Dev 2019; 178:46-63. [DOI: 10.1016/j.mad.2019.01.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/28/2018] [Accepted: 01/11/2019] [Indexed: 02/07/2023]
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Samsamshariat SZA, Sakhaei F, Salehizadeh L, Keshvari M, Asgary S. Relationship between Resistin, Endothelin-1, and Flow-Mediated Dilation in Patient with and without Metabolic Syndrome. Adv Biomed Res 2019; 8:16. [PMID: 30993086 PMCID: PMC6425749 DOI: 10.4103/abr.abr_126_18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Resistin is peptides that signal the functional status of adipose tissue to the brain and other target organs. It causes insulin resistance and affects the vascular endothelial dysfunction. However, the function and relation between resistin in endothelin-1 (ET-1), which leads to the endothelial dysfunction in humans are enigmatic. Materials and Methods: In a cross-sectional study of 76 participants (38 metabolic syndrome patients and 38 healthy participants), biochemical and clinical parameters, including lipid profile, fasting glucose, resistin, ET-1, C-reactive protein (CRP), flow-mediated dilation (FMD), and hypertension were determined and compared between the two groups. Results: Multiple linear regression analysis was performed with age- and sex-adjusted plasma resistin levels, FMD, and ET-1 as the dependent variables. Analysis showed that weight, body mass index, triglycerides (TGs), and ET-1 were statistically significant correlated with serum resistin. FMD has negative significantly correlated with weight (r = −0.491, P = 0.001), waist circumference (r = −0.491, P = 0.001), waist-to-hip ratio (r = −0.0444, P = 0.001), and ET-1 (r = −0.075, P = 0.050), but it has significantly correlated with systolic blood pressure (SBP) (r = 0.290, P = 0.016), diastolic blood pressure (DBP) (r = 0.275, P = 0.023), and high-density lipoprotein cholesterol (HDL-C) (r = −0.266, P = 0.050), and ET-1, but it has significantly correlated with SBP, DBP, and HDL-C. ET-1 is significantly correlated with TGs (r = −0.436, P = 0.006), total cholesterol (r = 0.452, P = 0.004), low-density lipoprotein cholesterol (r = 0.454, r = 0.004), and resistin (r = 0.282, P = 0.050), whereas it has negative significantly correlated with HDL-C (r = 0.346, P = 0.034), FMD (r = −0.075, P = 0.050. Conclusion: In this study, results shown plasma ET-1 and resistin are suggested as risk factors for the development of endothelial dysfunction and with further study, it is possible that can diagnose the risk of diabetes and cardiovascular disease in the early stages.
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Affiliation(s)
- Seyed Ziyae Aldin Samsamshariat
- Department of Clinical Biochemistry, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fariba Sakhaei
- Department of Clinical Biochemistry, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Leila Salehizadeh
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Science, Isfahan, Iran
| | - Mahtab Keshvari
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sedigheh Asgary
- Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
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Shi J, Fan J, Su Q, Yang Z. Cytokines and Abnormal Glucose and Lipid Metabolism. Front Endocrinol (Lausanne) 2019; 10:703. [PMID: 31736870 PMCID: PMC6833922 DOI: 10.3389/fendo.2019.00703] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 09/30/2019] [Indexed: 12/20/2022] Open
Abstract
Clear evidence indicates that cytokines, for instance, adipokines, hepatokines, inflammatory cytokines, myokines, and osteokines, contribute substantially to the development of abnormal glucose and lipid metabolism. Some cytokines play a positive role in metabolism action, while others have a negative metabolic role linking to the induction of metabolic dysfunction. The mechanisms involved are not fully understood, but are associated with lipid accumulation in organs and tissues, especially in the adipose and liver tissue, changes in energy metabolism, and inflammatory signals derived from various cell types, including immune cells. In this review, we describe the roles of certain cytokines in the regulation of metabolism and inter-organ signaling in regard to the pathophysiological aspects. Given the disease-related changes in circulating levels of relevant cytokines, these factors may serve as biomarkers for the early detection of metabolic disorders. Moreover, based on preclinical studies, certain cytokines that can induce improvements in glucose and lipid metabolism and immune response may emerge as novel targets of broader and more efficacious treatments and prevention of metabolic disease.
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Affiliation(s)
- Jie Shi
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jiangao Fan
- Shanghai Key Laboratory of Children's Digestion and Nutrition, Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Qing Su
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Qing Su
| | - Zhen Yang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Zhen Yang
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Diabetes risk assessment with imaging: a radiomics study of abdominal CT. Eur Radiol 2018; 29:2233-2242. [DOI: 10.1007/s00330-018-5865-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 10/09/2018] [Accepted: 10/25/2018] [Indexed: 12/21/2022]
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Akkus G, Evran M, Sert M, Tetiker T. Adipocytokines in Non-functional Adrenal Incidentalomas and Relation with Insulin Resistance Parameters. Endocr Metab Immune Disord Drug Targets 2018; 19:326-332. [PMID: 30306882 DOI: 10.2174/1871530318666181009112042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 08/06/2018] [Accepted: 08/17/2018] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Adrenal incidentalomas are diagnosed incidentally during radiological screenings and require endocrinological investigations for hormonal activity and malignancy. In certain studies, it has been reported that non-functional incidentalomas can be associated with high adipocytokines levels affecting the insulin resistance just like the adipose tissue with metabolic syndrome. Here, we studied serum adipocytokine levels including leptin, resistin, visfatin, omentin 1 and adiponectin in subjects with non-functional adrenal incidentaloma. METHODS Seventy-seven (77) patients (Female 57; Male 20) with non-functional adrenal incidentaloma (NFAI) were enrolled in the study. All patients' past medical history, physical examination including Body Mass Index (BMI) and waist circumference were performed. The patients' demographic, radiologic, hormonal and biochemical parameters were recorded. To compare the parameters, a control group (CG) (n=30) was formed from healthy volunteers. Both groups were matched for age, gender, waist circumference and BMI. Serum adipocytokines including leptin, resistin, visfatin, omentin 1 and adiponectin were measured quantitatively by ELISA. Fasting plasma glucose, insulin, sodium, potassium, cortisol, adrenocorticotropic hormone (ACTH), lipid profiles, and dehidroepiandrostenedion sulphate (DHEAS) were measured. RESULTS Mean age of the patients was 52.2±10.4 years. BMI and waist circumference of NFAI patients were 26.2±3.28 kg/m2 and 90.2 ±7.5cm, respectively. The mean age of the control group was 48.0±8.16. BMI and waist circumference values for the control group were 25.3±3.5 kg/m2 and 88.3±9.6 cm, respectively. When both groups were compared for age, gender, BMI and waist circumference were non-significant (p>0.05). Serum fasting insulin, total cholesterol, LDL, triglyceride levels of the NFAI group were significantly higher than CG (p<0.05). The insulin resistance index (HOMAIR) values of the NFAI subjects were found to be higher than CG (2.5±1.37, 1.1±0.3 p=0.00). Resistin level of NFAI group was also found to be higher than CG [286.6 ng/L vs. 197 ng/L; (P=0,00)], respectively. Leptin levels of NFAI were significantly higher than CG [441.1 ng/mL vs. 186.5 ng/mL; (P=0.00)] respectively. Adiponectin levels were significantly reduced in the NFAI group than in the CG [10.7 mg/L vs. 30.8 mg/L; (P=0.00)]. Comparision of visfatin and omentin levels was nonsignificant. CONCLUSION In this study on subjects with non-functional adrenal incidentaloma, we found not only significantly decreased serum adiponectin levels but also increased leptin, resistin levels as well as dyslipidemia, hypertension and high insulin resistance index. All of which could affect insulin resistance and cardiovascular risk factors. The underlying mechanisms of these findings are unknown, hence further studies are needed.
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Affiliation(s)
- Gamze Akkus
- Endocrinology Department, Cukurova University, Adana, Turkey
| | - Mehtap Evran
- Endocrinology Department, Cukurova University, Adana, Turkey
| | - Murat Sert
- Endocrinology Department, Cukurova University, Adana, Turkey
| | - Tamer Tetiker
- Endocrinology Department, Cukurova University, Adana, Turkey
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Timirci-Kahraman O, Yilmaz U, Yilmaz N, Cevik A, Horozoglu C, Celik F, Gokce MO, Ergen A, Melekoglu A, Zeybek U. A Study of Short- and Long-term mRNA Levels of the Retn, Iapp, and Drd5 Genes in Obese Mice Induced with High-fat Diet. In Vivo 2018; 32:813-817. [PMID: 29936463 DOI: 10.21873/invivo.11312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND/AIM Adipocyte gene expression is altered in obese individuals through multiple metabolic and biochemical pathways. In this study, we aimed to examine the expression of resistin (Retn), amylin (Iapp), and dopamine receptor domain 5 (Drd5) genes previously suggested to contribute to the pathogenesis of obesity, albeit controversially. We also aimed to determine the effects on short and long-term mRNA levels of these genes in obese mice, induced with high-fat diet (HFD). MATERIALS AND METHODS Two obesity models were created in our study: group T1 (20 mice) was fed with HFD (60% fat) for 3 months, and group T2 (20 mice) was fed with HFD (60% fat) for 6 months. The control group T0 (20 mice) was fed with a diet of 10% kcal fat supplement for 6 months. At the end of the experiment, their adipose tissues were dissected surgically. Tissue samples of each group were pooled for RNA isolation, cDNA synthesis was carried out and the mRNA levels were examined by quantitative real-time polymerase chain reaction. Serum resistin levels were measured using multiplex bead (luminex) technology for validation. RESULTS In T2 mice, the mRNA expression of Retn showed a moderate up-regulation (fold change=8.32; p=0.0019) in the adipose tissues. Iapp expression was also significantly up-regulated (fold change=9.78; p=0.012). Moreover, a 6.36-fold up-regulation for Drd5 was observed in the adipose tissues of T2 mice (p<0.001). At the same time, serum levels of resistin were found to be high in T1 and T2 mice compared to the control group (p<0.001 and p=0.024, respectively). CONCLUSION Our study demonstrated that the mRNA levels of the genetic markers considered to play a role in adipogenesis were different in short- and long-term obesity models formed in C57BL/6J mice using HFD.
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Affiliation(s)
- Ozlem Timirci-Kahraman
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Umit Yilmaz
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Nesibe Yilmaz
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Aydin Cevik
- Department of Experimental Animal Biology and Biomedical Application Techniques, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Cem Horozoglu
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey.,Department of Medical Services and Techniques, Istanbul Gelisim University, Istanbul, Turkey
| | - Faruk Celik
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Muhammed Oguz Gokce
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Arzu Ergen
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Abdullah Melekoglu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Umit Zeybek
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
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Comparison of Posttransplant Outcomes in Living Donor Liver Transplantation for Obese and Nonobese Recipients. Transplant Proc 2018; 50:2679-2683. [PMID: 30401376 DOI: 10.1016/j.transproceed.2018.02.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/19/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Although living donor liver transplantation for obese recipients has increased, it has not been determined that posttransplant outcomes in obese recipients are inferior compared with nonobese recipients. METHODS From January 2001 to December 2016, there was a total of 58 (6%) obese patients (body mass index ≥30) in a cohort of 973 adult patients that underwent living donor liver transplantation. Propensity score matching and classification were performed based on the type of obesity, and there were 58 patients in the obese group and 141 patients in the nonobese group. We performed comparative analysis of posttransplant outcomes including Model for Early Allograft Function (MEAF) scoring and early allograft dysfunction (EAD). RESULTS EAD was found in 11 (19%) and 31 (22%) patients in the obese and nonobese groups, respectively (P = .71). The obese group had a higher MEAF score than the nonobese group (5.2 vs 4.5, P = .007). The mean hospitalization of the obese group was shorter than in the nonobese group (32 vs 42 days, P = .003). Other posttransplant outcomes were similar between the obese and nonobese groups, including acute cellular rejection (8 vs 10 cases, P = .17), early graft failure (8 vs 12 cases, P = .30), index hospital mortality (6 vs 11 cases, P = .58), and comprehensive complication index (26.0 vs 24.6, P = .76). CONCLUSION Posttransplant outcomes of the obese group were not inferior to the nonobese group. However, obesity can impact the severity of EAD and the incidence of early graft failure, based on significantly higher MEAF scores.
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Resistin facilitates breast cancer progression via TLR4-mediated induction of mesenchymal phenotypes and stemness properties. Oncogene 2017; 37:589-600. [PMID: 28991224 DOI: 10.1038/onc.2017.357] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 12/11/2022]
Abstract
Growing evidence indicates that resistin-an obesity-related cytokine-is upregulated in breast cancer patients, yet its impact on breast cancer behavior remains to be ascertained. Similarly, Toll-like receptor 4 (TLR4) has been implicated in breast cancer progression, however, its clinically relevant endogenous ligand remains elusive. In this study, we observed that high serum resistin levels in breast cancer patients positively correlated with tumor stage, size and lymph node metastasis. These findings were replicated in animal models of breast cancer tumorigenesis and metastasis. Resistin was found to promote epithelial-mesenchymal transition and stemness in breast cancer cells-mechanisms critical to tumorigenesis and metastasis-through a TLR4/nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)/signal transducer and activator of transcription 3 (STAT3) signaling pathway and negated by TLR4-specific antibody and antagonist. These findings provide clear evidence that resistin is a clinically relevant endogenous ligand for TLR4, which promotes tumor progression via TLR4/NF-κB/STAT3 signaling, providing insights into a novel therapeutic target in breast cancer.
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