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https://www.readbyqxmd.com/read/29469650/prenatal-androgen-exposure-causes-hypertension-and-gut-microbiota-dysbiosis
#1
Shermel Sherman, Nadeen Sarsour, Marziyeh Salehi, Allen Schroering, Blair Mell, Bina Joe, Jennifer W Hill
BACKGROUND: Conditions of excess androgen in women, such as polycystic ovary syndrome (PCOS), often exhibit intergenerational transmission. One way in which the risk for PCOS may be increased in daughters of affected women is through exposure to elevated androgens in utero. Hyperandrogenemic conditions have serious health consequences, including increased risk for hypertension and cardiovascular disease. Recently, gut dysbiosis has been found to induce hypertension in rats, such that blood pressure can be normalized through fecal microbial transplant...
February 22, 2018: Gut Microbes
https://www.readbyqxmd.com/read/29469051/nonalcoholic-fatty-liver-disease-progresses-into-severe-nash-when-physiological-mechanisms-of-tissue-homeostasis-collapse
#2
Silvia Sookoian, Carlos J Pirola
Phenotypic modulation of NAFLD-severity by molecules derived from white (adipokines) and brown (batokines) adipose tissue may be important in inducing or protecting against the progression of the disease. Adipose tissue-derived factors can promote the progression of NAFLD towards severe histological stages (NASH-fibrosis and NASHcirrhosis). This effect can be modulated by the release of adipokines or batokines that directly trigger an inflammatory response in the liver tissue or indirectly modulate related phenotypes, such as insulin resistance...
March 1, 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29467799/exposure-to-maternal-cafeteria-diets-during-the-suckling-period-has-greater-effects-on-fat-deposition-and-sterol-regulatory-element-binding-protein-1c-srebp-1c-gene-expression-in-rodent-offspring-compared-to-exposure-before-birth
#3
M A Vithayathil, J R Gugusheff, Z Y Ong, S C Langley-Evans, R A Gibson, B S Muhlhausler
Background: While the adverse metabolic effects of exposure to obesogenic diets during both the prenatal and early postnatal period are well established, the relative impact of exposure during these separate developmental windows remains unclear. This study aimed to assess the relative contribution of exposure to a maternal cafeteria diet during pregnancy and lactation on body weight, fat mass and expression of lipogenic and adipokine genes in the offspring. Methods: Wistar rats were fed either a control chow (Control, n  = 14) or obesogenic cafeteria diet (CAF, n  = 12) during pregnancy and lactation...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29467310/whole-body-but-not-hepatic-knockdown-of-chemerin-by-antisense-oligonucleotide-decreases-blood-pressure-in-rats
#4
David J Ferland, Bridget Seitz, Emma S Darios, Janice M Thompson, Steve T Yeh, Adam E Mullick, Stephanie W Watts
Chemerin is an inflammatory adipokine positively associated with hypertension and obesity. The majority of chemerin derives from the liver and adipose tissue, however, their individual contributions to blood pressure are unknown. We began studying chemerin in the normal rat using antisense oligonucleotides (ASO) with whole-body activity (Gen 2.5 chemerin ASO) or liver-restricted activity (GalNAc chemerin ASO). We hypothesized that in normotensive male SD rats, circulating chemerin is predominately liver-derived and regulates blood pressure...
February 21, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29466880/telmisartan-reverses-antiretroviral-induced-adipocyte-toxicity-and-insulin-resistance-in-vitro
#5
Sudeep P Pushpakom, Antonysunil Adaikalakoteswari, Andrew Owen, David J Back, Gyanendra Tripathi, Sudhesh Kumar, Philip McTernan, Munir Pirmohamed
BACKGROUND: Antiretroviral therapy in HIV-positive patients leads to insulin resistance which is central to the pathogenesis of various metabolic abnormalities and cardiovascular disease seen in this patient group. We have investigated the dose-response relationship of telmisartan, an antihypertensive, on adipocytes in vitro in order to determine whether it may have metabolic beneficial effects. METHODS: Using in vitro chronic toxicity models (3T3-F442A murine and primary human adipocytes), we evaluated the effects of different concentrations of telmisartan on adipocyte differentiation and adipogenic gene expression using lipid accumulation assays and real-time polymerase chain reaction, respectively...
February 1, 2018: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/29466620/secretome-analysis-of-hypoxia-induced-3t3-l1-adipocytes-uncovers-novel-proteins-potentially-involved-in-obesity
#6
Anna Elisa Laria, Sebastiano Messineo, Biagio Arcidiacono, Mariaconcetta Varano, Eusebio Chiefari, Robert K Semple, Nuno Rocha, Diego Russo, Giovanni Cuda, Marco Gaspari, Antonio Brunetti, Daniela P Foti
In the obese state, as adipose tissue expands, adipocytes become hypoxic and dysfunctional, leading to changes in the pattern of adipocyte-secreted proteins. To better understand the role of hypoxia in the mechanisms linked to obesity, we comparatively analyzed the secretome of murine differentiated 3T3-L1 adipocytes exposed to normoxia or hypoxia for 24 h. Proteins secreted into the culture media were precipitated by trichloroacetic acid and then digested with trypsin. The peptides were labeled with dimethyl labeling and analyzed by reversed phase nanoscale liquid chromatography coupled to a quadrupole Orbitrap mass spectrometer...
February 21, 2018: Proteomics
https://www.readbyqxmd.com/read/29466196/-issues-of-adipokine-regulation-in-idiopathic-pulmonary-arterial-hypertension-and-systemic-osteopenia
#7
E A Kochetkova, V A Nevsorova, L G Ugay, Y V Maystrovskaya, T A Brodskaya
PURPOSE: to determine the role of adipokines and vascular remodeling in formation of osteoporosis in idiopathic pulmonary arterial hypertension (IPAH). MATERIALS AND METHODS: Functional and hemodynamic parameters, bone mineral density (BMD) T-score in lumbar spine (LS) and femoral neck (FN), blood serum levels of leptin, adiponectin, visfatin and endothelin-1 were measured in 27 patients with severe IPAH and 30 healthy volunteers. RESULTS: Half of IPAH patients had osteoporosis...
February 2018: Kardiologiia
https://www.readbyqxmd.com/read/29465306/sex-dimorphism-in-the-distribution-of-adipose-tissue-and-its-influence-on-proinflammatory-adipokines-and-cardiometabolic-profiles-in-motor-complete-spinal-cord-injury
#8
Gary J Farkas, Ashraf S Gorgey, David R Dolbow, Arthur S Berg, David R Gater
OBJECTIVE: We aimed to examine the influence of sex on the distribution of adipose tissue, as well as proinflammatory adipokine and cardiometabolic profiles, in chronic motor complete spinal cord injury (SCI). DESIGN: Cross-sectional and correlational study. SETTING: Academic rehabilitation hospital. PARTICIPANTS: Forty-seven individuals with chronic motor complete SCI classified according to sex (males: age 44.0 ± 10...
February 21, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29465158/evaluation-of-adipokines-in-children-with-cystic-fibrosis
#9
Edyta Machura, Maria Szczepańska, Elżbieta Świętochowska, Franciszek Halkiewicz, Małgorzata Barć-Czarnecka, Katarzyna Ziora, Dariusz Ziora
INTRODUCTION: Patients with CF present numerous pathological conditions such as malnutrition, depletion of fat-free mass, metabolic disturbances (abnormal glucose metabolism, increased insulin resistance, chronic energy deficit, local and chronic inflammation), which could affect or be associated with altered adipokines concentrationMaterial and Methods: We aimed in this study to investigate the levels of selected adipokines such as resistin, apelin, adiponectin to demonstrate their application as possible markers of inflammation...
February 21, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29465157/serum-concentrations-of-adipokines-in-men-with-prostate-cancer-and-benign-prostate-hyperplasia
#10
Lucyna Siemińska, Artur Borowski, Bogdan Marek, Mariusz Nowak, Dariusz Kajdaniuk, Jakub Warakomski, Beata Kos-Kudła
INTRODUCTION: Obesity and prostate cancer are related, but the causal relationship remains unknown. The aim of the study was to compare concentrations of leptin, adiponectin and chemerin in patients with prostate cancer and benign prostate hyperplasia and to examine associations of the adipokines with the grade of prostate cancer, interleukin-6 (IL-6), insulin resistance and anthropometric and metabolic variables. MATERIAL AND METHODS: The study group consisted of 140 men divided into two groups: I- prostate cancer (n=74) and II- with benign hyperplasia (n=66)...
February 21, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29464548/leptin-involvement-in-primary-brain-and-pituitary-tumors-therapeutic-potential-prognostic-value-and-proposed-diagnostic-application
#11
REVIEW
Christos Bikis, Theodora Tzanavari, Krystallenia I Alexandraki, Stamatios Theocharis
Brain tumors are associated with increased mortality and morbidity and are the most common cancer type in children and young adults. The present review focuses on the interplay between leptin, the most extensively studied adipokine, and the onset, development, and treatment of primary brain and intracranial tumors. The two main mechanisms for increased leptin levels in intracranial tumor survivors, leptin resistance caused by hypothalamic damage, or secondary to obesity, are discussed. The contradicting mechanistic observations on leptin being able to both promote tumorinogenesis (e...
February 20, 2018: Hormones & Cancer
https://www.readbyqxmd.com/read/29461239/-secretory-function-of-white-adipose-tissue-and-adipokines-biological-effects-and-clinical-significance-review
#12
O Sulaieva, Y Chereshneva, N Kartashkina, M Ivanova, D Tsomartova
In addition to accumulation and metabolism of triglycerides, white adipose tissue is recognized as the active endocrine organ, whose dysfunction is associated with the development of a wide range of diseases. The secretome of adipocytes is represented by a wide range of adipokines, which vary in depot and sex-specific manner. In addition, adipokines have diverse biological effects, correlations with different metabolic features and functions. In this review, the data on biological effects, origin and the clinical significance of adipokines are discussed...
January 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29458221/thyroid-stimulating-hormone-stimulated-human-adipocytes-express-thymic-stromal-lymphopoietin
#13
Loretta Ma, AnneMarie Gagnon, Anne Landry, Timothea Le, Fengxia Xiao, Cathy Sun, Heather A Lochnan, Dylan Burger, Alexander Sorisky
When recombinant human (rh) thyroid-stimulating hormone (TSH) is administered to thyroid cancer survivors, an acute extra-thyroidal effect raises pro-inflammatory cytokines and activates platelets. Thymic stromal lymphopoietin (TSLP) is a cytokine recently implicated in platelet activation. Our aim was to measure platelet microparticle levels after rhTSH stimulation in vivo, and to investigate TSLP expression in TSH-stimulated human adipocytes in culture. Blood samples for total and platelet microparticle analysis were obtained from thyroid cancer survivors before (day 1) and after rhTSH administration (day 5)...
February 19, 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29455364/hyperirisinemia-is-independently-associated-with-subclinical-hypothyroidism-correlations-with-cardiometabolic-biomarkers-and-risk-factors
#14
Theodora Stratigou, Maria Dalamaga, Georgios Antonakos, Ioanna Marinou, Evaggelos Vogiatzakis, Gerasimos Socrates Christodoulatos, Irene Karampela, Athanasios G Papavassiliou
PURPOSE: Irisin, a newly discovered adipo-myokine, is implicated in the modulation of the adipose phenotype, increasing energy expenditure and ameliorating systemic metabolism. Our aim was to investigate circulating irisin in subclinical hypothyroidism (SH) and study its associations with cardiometabolic risk factors. METHODS: In a large case-control study, serum irisin, insulin resistance and lipid parameters, classic adipokines, inflammatory and hepatic biomarkers, and cardiovascular risk factors were determined in 120 consecutive patients with SH and 120 healthy controls matched on age, gender, and date of blood draw...
February 17, 2018: Endocrine
https://www.readbyqxmd.com/read/29454302/aerobic-exercise-inhibits-obesity-induced-respiratory-phenotype
#15
Jefferson Comin Jonco Aquino-Junior, BreAnne MacKenzie, Ana Roberta Almeida-Oliveira, Ana Carolina Martins, Manoel Carneiro Oliveira-Junior, Auriléa Aparecida Britto, Fernanda Magalhaes Arantes-Costa, Nilsa Regina Damaceno-Rodrigues, Elia Garcia Caldini, Ana Paula Ligeiro de Oliveira, Dioze Guadagnini, Luiz Osorio Leiria, Djalma Rabelo Ricardo, Mario Jose Abdalla Saad, Rodolfo Paula Vieira
PURPOSE: Obesity results in decreased lung function and increased inflammation. Moderate aerobic exercise (AE) reduced lung inflammation and remodeling in a variety of respiratory disease models. Therefore, this study investigated whether AE can attenuate a diet-induced obesity respiratory phenotype; including airway hyper-responsiveness (AHR), remodeling and inflammation. METHODS: Sixty C57Bl/6 male mice were distributed into four groups: control lean (CL), exercise lean (EL), obese (O) and obese exercise (OE) groups (2 sets of 7 and 8 mice per group; n = 15)...
February 14, 2018: Cytokine
https://www.readbyqxmd.com/read/29453672/the-effect-of-n-3-pufas-on-circulating-adiponectin-and-leptin-in-patients-with-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#16
Azam Rezaei Farimani, Mitra Hariri, Mohsen Azimi-Nezhad, Abasalt Borji, Sadegh Zarei, Elham Hooshmand
AIM: N-3 PUFAs can potentially influence levels of inflammatory and non-inflammatory adipokines. Given the contradictory effects of n-3 PUFAs on serum levels of adipokines in type 2 diabetes, we conducted a systematic review and meta-analysis study of randomized placebo-controlled clinical trials that examined the effects of n-3 PUFAs on serum levels of leptin and adiponectin in patients with type 2 diabetes. METHODS: The electronic databases, without regard to language restrictions including PubMed/Medline, Google Scholar, SCOPUS and ISI Web of Science until August 2017, were used to identify randomized controlled trials that assessed the effect of n-3 PUFAs on serum leptin and adiponectin concentrations in type 2 diabetes...
February 16, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29453465/screening-of-potential-adipokines-identifies-s100a4-as-a-marker-of-pernicious-adipose-tissue-and-insulin-resistance
#17
Peter Arner, Paul Petrus, David Esteve, Anne Boulomié, Erik Näslund, Anders Thorell, Hui Gao, Ingrid Dahlman, Mikael Rydén
BACKGROUND: Adipokines are peptides secreted from white adipose tissue (WAT), which have been linked to WAT dysfunction and metabolic complications of obesity. We set out to identify novel adipokines in subcutaneous WAT (sWAT) linked to insulin resistance (IR). METHODS: Gene expression was determined by microarray and qPCR in obese and non-obese subjects with varying degree of IR. WAT-secreted and circulating protein levels were measured by ELISA. RESULTS: In sWAT of 80 obese women discordant for IR, 44 genes encoding potential adipose-secreted proteins were differentially expressed...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29453462/gq-11-a-new-ppar-agonist-improves-obesity-induced-metabolic-alterations-in-ldlr-mice
#18
Jacqueline C Silva, Edson M de Oliveira, Walter M Turato, Gustavo H G Trossini, Vinícius G Maltarollo, Marina G R Pitta, Ivan R Pitta, Beatriz de Las Heras, Lisardo Boscá, Martina Rudnicki, Dulcineia S P Abdalla
BACKGROUND: Obesity and insulin resistance/diabetes are important risk factors for cardiovascular diseases and demand safe and efficacious therapeutics. OBJECTIVE: To assess the effects of a new thiazolidine compound-GQ-11-on obesity and insulin resistance induced by a diabetogenic diet in LDL receptor-deficient (LDLr -/- ) mice. METHODS: Molecular docking simulations of GQ-11, PPARα and PPARγ structures were performed. Male C57BL/6J LDLr -/- mice fed a diabetogenic diet for 24 weeks were treated with vehicle, GQ-11 or pioglitazone or (20 mg/kg/day) for 28 days by oral gavage...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29453251/a-novel-adipokine-fam19a5-inhibits-postinjury-neointima-formation-through-sphingosine-1-phosphate-receptor-2
#19
Yingbao Wang, Dixin Chen, Yan Zhang, Pingzhang Wang, Can Zheng, Songyang Zhang, Bing Yu, Lu Zhang, Guizhen Zhao, Baihui Ma, Zeyu Cai, Nan Xie, Shiyang Huang, Ziyi Liu, Xiaoning Mo, Youfei Guan, Xian Wang, Yi Fu, Dalong Ma, Ying Wang, Wei Kong
Background -Obesity plays crucial roles in the development of cardiovascular diseases (CVDs). However, the mechanisms that link obesity and CVDs remain elusive. Compelling evidence indicates that adipokines play an important role in obesity-related CVDs. Here, we found a new adipokine named family with sequence similarity 19, member A5 (FAM19A5), a protein with unknown function that was predicted to be distantly related to the CC-chemokine family. We aimed to test whether adipose-derived FAM19A5 regulates vascular pathology upon injury...
February 16, 2018: Circulation
https://www.readbyqxmd.com/read/29452178/effects-of-canagliflozin-versus-glimepiride-on-adipokines-and-inflammatory-biomarkers-in-type-2-diabetes
#20
W Timothy Garvey, Luc Van Gaal, Lawrence A Leiter, Ujjwala Vijapurkar, James List, Robert Cuddihy, Jimmy Ren, Michael J Davies
OBJECTIVE: Type 2 diabetes and obesity are pro-inflammatory states associated with increased risk of cardiovascular disease. Canagliflozin, an SGLT2 inhibitor, demonstrated superiority in lowering HbA1c versus glimepiride with less hypoglycemia and greater weight reduction via loss of fat mass in a 52-week trial of type 2 diabetes patients. This post hoc, exploratory analysis assessed the effects of canagliflozin versus glimepiride on select adipokines, inflammatory biomarkers, and chemokines...
February 13, 2018: Metabolism: Clinical and Experimental
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