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https://www.readbyqxmd.com/read/28645211/akr1c3-mediated-adipose-androgen-generation-drives-lipotoxicity-in-women-with-polycystic-ovary-syndrome
#1
Michael W O'Reilly, Punith Kempegowda, Mark Walsh, Angela E Taylor, Konstantinos N Manolopoulos, J William Allwood, Robert K Semple, Daniel Hebenstreit, Warwick B Dunn, Jeremy W Tomlinson, Wiebke Arlt
Context: Polycystic ovary syndrome (PCOS) is a prevalent metabolic disorder, occurring in up to 10% of women of reproductive age. PCOS is associated with insulin resistance and cardiovascular risk. Androgen excess is a defining feature of PCOS and has been suggested as causally associated with insulin resistance; however, mechanistic evidence linking both is lacking. We hypothesized that adipose tissue is an important site linking androgen activation and metabolic dysfunction in PCOS...
June 22, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28643028/polycystic-ovary-syndrome-adipose-tissue-and-metabolic-syndrome
#2
REVIEW
Alessandro P Delitala, Giampiero Capobianco, Giuseppe Delitala, Pier Luigi Cherchi, Salvatore Dessole
PURPOSE: Polycystic ovary syndrome (PCOS) is the most common endocrine disorder that affects women of reproductive age and is characterized by ovulatory dysfunction and/or androgen excess or polycystic ovaries. Women with PCOS present a number of systemic symptoms in addition to those related to the reproductive system. It has been associated with functional derangements in adipose tissue, metabolic syndrome, type 2 diabetes, and an increased risk of cardiovascular disease (CVD). METHODS: A detailed literature search on Pubmed was done for articles about PCOS, adipokines, insulin resistance, and metabolic syndrome...
June 22, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28640452/role-of-epicardial-adipose-tissue-in-health-and-disease-a-matter-of-fat
#3
Bénédicte Gaborit, Coralie Sengenes, Patricia Ancel, Alexis Jacquier, Anne Dutour
Epicardial adipose tissue (EAT) is a small but very biologically active ectopic fat depot that surrounds the heart. Given its rapid metabolism, thermogenic capacity, unique transcriptome, secretory profile, and simply measurability, epicardial fat has drawn increasing attention among researchers attempting to elucidate its putative role in health and cardiovascular diseases. The cellular crosstalk between epicardial adipocytes and cells of the vascular wall or myocytes is high and suggests a local role for this tissue...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28640441/adipose-tissue-derived-omentin-1-function-and-regulation
#4
Takuya Watanabe, Kaho Watanabe-Kominato, Yui Takahashi, Miho Kojima, Rena Watanabe
Omentin-1, also known as intelectin-1, is a recently identified novel adipocytokine of 313 amino acids, which is expressed in visceral (omental and epicardial) fat as well as mesothelial cells, vascular cells, airway goblet cells, small intestine, colon, ovary, and plasma. The level of omentin-1 expression in (pre)adipocytes is decreased by glucose/insulin and stimulated by fibroblast growth factor-21 and dexamethasone. Several lines of experimental evidence have shown that omentin-1 plays crucial roles in the maintenance of body metabolism and insulin sensitivity, and has anti-inflammatory, anti-atherosclerotic, and cardiovascular protective effects via AMP-activated protein kinase/Akt/nuclear factor-κB/mitogen-activated protein kinase (ERK, JNK, and p38) signaling...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28637258/-dysfunctional-adipose-tissue-in-cardiovascular-disease-a-reprogrammable-target-or-an-innocent-bystander
#5
Charalambos Antoniades
Metabolically abnormal obesity as well as type 2 diabetes, are related with fundamental changes in the interactions between adipose tissue and the cardiovascular system. This editorial article introduces a spotlight issue addressing the complex relationships between adipose tissue and the cardiovascular system, in health and disease.
June 16, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28635909/-chronic-obstructive-pulmonary-disease-concurrent-with-metabolic-syndrome-pathophysiological-and-clinical-features
#6
A V Budnevsky, E S Ovsyannikov, N B Labzhania
Chronic obstructive pulmonary disease (COPD) still remains a serious public health problem, which is a common cause of disability and death in the able-bodied population. Furthermore, the number of patients with metabolic syndrome (MS) is steadily increasing worldwide. Recently, there is also an increase in the number of patients with COPD concurrent with MS, which is a mutually confounding risk factor for concomitant cardiovascular disease and adversely affects prognosis in these patients. Systemic subclinical inflammation is a common link between COPD and the components of MS...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28635127/cardiovascular-risk-score-is-linked-to-subcutaneous-adipocyte-size-and-lipid-metabolism
#7
Mikael Rydén, Peter Arner
OBJECTIVE: Although white adipose tissue mass and distribution correlates with cardiovascular disease, the fat cell-specific perturbations underlying this association are not known. We determined the relationship between adipocyte size and lipid metabolism with cardiovascular risk. DESIGN/SUBJECTS: Adipocyte size as well as spontaneous (basal) and hormone-stimulated effects on adipocyte lipid metabolism (lipolysis and lipogenesis) were investigated in abdominal subcutaneous adipose tissue of 304 men and 775 women...
June 21, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28629772/impact-of-the-cardiovascular-system-associated-adipose-tissue-on-atherosclerotic-pathology
#8
REVIEW
Dimitry A Chistiakov, Andrey V Grechko, Veronika A Myasoedova, Alexandra A Melnichenko, Alexander N Orekhov
Cardiac obesity makes an important contribution to the pathogenesis of cardiovascular disease. One of the important pathways of this contribution is the inflammatory process that takes place in the adipose tissue. In this review, we consider the role of the cardiovascular system-associated fat in atherosclerotic cardiovascular pathology and a non-atherosclerotic cause of coronary artery disease, such as atrial fibrillation. Cardiovascular system-associated fat not only serves as the energy store, but also releases adipokines that control local and systemic metabolism, heart/vascular function and vessel tone, and a number of vasodilating and anti-inflammatory substances...
June 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28623919/effects-of-karela-bitter-melon-momordica-charantia-on-genes-of-lipids-and-carbohydrates-metabolism-in-experimental-hypercholesterolemia-biochemical-molecular-and-histopathological-study
#9
Dalia Yossri Saad, Mohamed Mohamed Soliman, Ahmed A Baiomy, Magdy Hassan Yassin, Hanan Basiouni El-Sawy
BACKGROUND: Hypercholesterolemia is a serious diseases associated with type-2 diabetes, atherosclerosis, cardiovascular disorders and liver diseases. Humans seek for safe herbal medication such as karela (Momordica charantia/bitter melon) to treat such disorders to avoid side effect of pharmacotherapies widely used. METHODS: Forty male Wistar rats were divided into four equal groups; control group with free access to food and water, cholesterol administered group (40 mg/kg BW orally); karela administered group (5 g /kg BW orally) and mixture of cholesterol and karela...
June 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28621447/metformin-prevents-vascular-prostanoid-release-alterations-induced-by-a-high-fat-diet-in-rats
#10
H J Lee, S M Cantú, A S Donoso, M R Choi, H A Peredo, A M Puyó
Perivascular adipose tissue dysfunction induced by high-fat feeding leads to alterations in the modulation of inflammation, contractile activity of the vascular smooth muscle and endothelial function, all risk factors in the development of hypertension. Metformin, an activator of AMP-activated protein kinase (AMPK), is currently the first-line drug treatment for type 2 diabetes (T2DM) and metabolic syndrome. Besides its glucose-lowering effect, there is an interest in actions of this drug with potential relevance in cardiovascular diseases...
June 16, 2017: Autonomic & Autacoid Pharmacology
https://www.readbyqxmd.com/read/28619625/hmgb1-an-innate-alarmin-plays-a-critical-role-in-chronic-inflammation-of-adipose-tissue-in-obesity
#11
REVIEW
Jing Zhang, Lei Zhang, Shu Zhang, Qilin Yu, Xiong Fei, Kun Huang, Cong-Yi Wang, Ping Yang
Obesity has emerged as an imminent global public health concern over the past several decades. It has now become evident that obesity is characterized by the persistent and low-grade inflammation in the adipose tissue, and serves as an independent risk factor for many metabolic disorders such as diabetes and cardiovascular disease. Particularly, adipocytes originated from obese mice and humans likely predominate necrosis upon stressful insults, leading to passive release of cellular contents including the high mobility group box 1 (HMGB1) into the extracellular milieu...
June 12, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28616806/ipragliflozin-reduces-epicardial-fat-accumulation-in-non-obese-type-2-diabetic-patients-with-visceral-obesity-a-pilot-study
#12
Tatsuya Fukuda, Ryotaro Bouchi, Masahiro Terashima, Yuriko Sasahara, Masahiro Asakawa, Takato Takeuchi, Yujiro Nakano, Masanori Murakami, Isao Minami, Hajime Izumiyama, Koshi Hashimoto, Takanobu Yoshimoto, Yoshihiro Ogawa
INTRODUCTION: Epicardial fat (EF) was reported to be independently associated with cardiovascular disease regardless of obesity. We have previously reported that a sodium-glucose co-transporter-2 (SGLT2) inhibitor, luseogliflozin, reduces the EF volume (EFV) in parallel with the reduction of body weight in obese patients (BMI ≥25 kg/m(2)) with type 2 diabetes. However, it is unknown whether SGLT2 inhibitors could reduce EFV in non-obese patients (BMI <25 kg/m(2)) with type 2 diabetes...
June 14, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28614778/the-human-immunodeficiency-virus-hiv1-protease-inhibitor-sanquinavir-activates-autophagy-and-removes-lipids-deposited-in-lipid-droplets
#13
A Polus, M Bociaga-Jasik, U Czech, J Goralska, U Cialowicz, M Chojnacka, M Polus, K Jurowski, A Dembinska-Kiec
Reduction in mortality and increased average life span of the human immunodeficiency virus (HIV)-infected patients treated with antiretroviral therapy (ART) are associated with the risk of unwanted effects, such as insulin resistance and dyslipidemia with cardiovascular complications. Antiretroviral therapy may also be associated with lipodystrophy characterized as peripheral lipoatrophy with central fat accumulation. Understanding the molecular mechanisms of lipodystrophy caused by ART is important for therapeutic strategy and the prediction of side-effects...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614775/changes-in-viability-of-rat-adipose-derived-stem-cells-isolated-from-abdominal-perinuclear-adipose-tissue-stimulated-with-pulsed-electromagnetic-field
#14
A Baranowska, B Skowron, B Nowak, K Ciesielczyk, P Guzdek, K Gil, J Kaszuba-Zwoinska
Previous experiments demonstrated that low-frequency electromagnetic field (LF-EMF) may activate cellular death pathways in proliferating cells. Therefore, we hypothesized that LF-EMF may also influence viability of highly proliferating undifferentiated adipose-derived stem cells. Obesity is classified as a civilization disease; its etiopathogenesis is presumed to include both genetic predisposition and influence of modified environmental factors, such as unbalanced diet with excess calories and/or too low physical activity...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28610961/histone-acetylation-favours-the-cardiovascular-commitment-of-adipose-tissue-derived-stromal-cells
#15
Elena De Falco, Antonella Bordin, Eleonora Scaccia, Francesca Pagano, Mohsen Ibrahim, Leonardo Schirone, Francesco Angelini, Silvia Palmerio, Michele Madonna, Luca Fianchini, Isotta Chimenti, Sebastiano Sciarretta, Giacomo Frati
BACKGROUND: Although adipose stromal cells (ASCs) retain the ability to transdifferentiate at low rate towards the cardiac lineage, the potential mechanisms underlying such process have still to be elucidated. METHODS: Since chromatin state modifications are involved in several processes regulating the cellular cell fate commitment, we aimed at evaluating the role of histone protein acetylation in the cardiovascular-like transdifferentiation of ASCs. RESULTS: We found a clear increase of histone 3 acetylation status paralleled by a significant upregulation of cardiac TnI gene expression, in ASCs treated with the conditioned medium of primary cardiomyocyte cell cultures for 72h...
June 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28605657/muscle-as-a-paracrine-and-endocrine-organ
#16
REVIEW
Jimena Giudice, Joan M Taylor
Skeletal muscle cells are highly abundant and metabolically active and are known to 'communicate' their energy demands to other organs through active secretion. Muscle-derived secretory proteins include a variety of cytokines and peptides collectively referred to as 'myokines' that exert autocrine, paracrine or endocrine effects. Analyses of the skeletal muscle secretome revealed that numerous myokines are secreted in response to contraction or strength training, and that these factors not only regulate energy demand but also contribute to the broad beneficial effects of exercise on cardiovascular, metabolic, and mental health...
June 9, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28605451/age-at-menarche-and-incidence-of-diabetes-a-prospective-study-of-300-000-women-in-china
#17
Ling Yang, Liming Li, Sanne A E Peters, Robert Clarke, Yu Guo, Yiping Chen, Zheng Bian, Paul Sherliker, Jiyuan Yin, Zhenzhu Tang, Chunmei Wang, Xiaohuan Wang, Libo Zhang, Mark Woodward, Zhengming Chen
Previous studies of mostly Western populations have reported inconsistent associations between age at menarche and risk of diabetes. We examined such associations among Chinese women who tend to have later menarche age than women in West. China Kadoorie Biobank recruited 302,632 women aged 30-79 years from 10 areas across China in 2004-8, recording 5,391 incident cases of diabetes during 7-years follow-up among 270,345 women without diabetes, cardiovascular disease or cancer at baseline. Cox regression models yielded adjusted hazard ratios (HRs) for incident diabetes associated with age at menarche...
June 9, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28605281/re-plasminogen-activator-inhibitor-1-and-pericardial-fat-in-individuals-with-type-2-diabetes-mellitus-by-bayomi-et-al-metab-syndr-relat-disord-doi-10-1089-met-2017-0031
#18
Angelo Avogaro
Plasminogen activator inhibitor-1 (PAI-1) is a member of the serine protease inhibitor (serpin) superfamily, which inactivates tissue plasminogen activator (tPA); therefore, increased level of PAI-1 antigen counteracts the anticoagulant effect of tPA and facilitates the fibrin clot formation. Plasma PAI-1 antigen and activity levels are associated with increased body mass index and with features of the insulin resistance syndrome like obesity and diabetes. Visceral adipose tissue produces more PAI-1 than subcutaneous adipose tissue: This increased production of PAI-1 from the visceral adipose tissue is one important link between visceral obesity and cardiovascular disease...
June 12, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28603178/role-of-adipokines-in-cardiovascular-disease
#19
Wayne Bond Lau, Koji Ohashi, Yajing Wang, Hayato Ogawa, Toyoaki Murohara, Xin-Liang Ma, Noriyuki Ouchi
Cardiovascular disease (CVD) is the greatest cause of death, accounting for nearly one-third of all deaths worldwide. The increase in obesity rates over 3 decades is widespread and threatens the public health in both developed and developing countries. Obesity, the excessive accumulation of visceral fat, causes the clustering of metabolic disorders, such as type 2 diabetes, dyslipidemia, and hypertension, culminating in the development of CVD. Adipose tissue is not only an energy storage organ, but an active endocrine tissue producing various biologically active proteins known as adipokines...
June 10, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28602296/comprehensive-qualification-and-quantification-of-triacylglycerols-with-specific-fatty-acid-chain-composition-in-horse-adipose-tissue-human-plasma-and-liver-tissue
#20
Ming Guan, Dongsheng Dai, Lin Li, Jinchao Wei, Hui Yang, Shilei Li, Yangyang Zhang, Yu Lin, Shaoxiang Xiong, Zhenwen Zhao
High levels of triacylglycerols (TGs) have been linked to cardiovascular disease and liver diseases. Comprehensively analyzing TGs is helpful to understand the TGs functions in these diseases. However, due to the existence of a large number of isomers TGs and the lack of commercial standards, precise analysis of individual triacylglycerol (TG) with specific fatty acid chain composition is full of challenge. In this work, ultra-performance liquid chromatography (UPLC) coupled with electrospray ionization (ESI) mass spectrometry (MS) were employed for comprehensive qualification and quantification of TGs with specific fatty acid chain composition in horse adipose tissue, human plasma and liver tissues including hepatocellular carcinoma (HCC) and para-carcinoma tissues...
September 1, 2017: Talanta
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