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https://www.readbyqxmd.com/read/29679919/the-effect-of-growth-hormone-on-bioactive-igf-in-overweight-obese-women
#1
Laura E Dichtel, Mette Bjerre, Melanie Schorr, Miriam A Bredella, Anu V Gerweck, Brian M Russell, Jan Frystyk, Karen K Miller
OBJECTIVE: Overweight/obesity is characterized by decreased growth hormone (GH) secretion whereas circulating IGF-I levels are less severely reduced. Yet, the activity of the circulating IGF-system appears to be normal in overweight/obese subjects, as estimated by the ability of serum to activate the IGF-I receptor in vitro (bioactive IGF). We hypothesized that preservation of bioactive IGF in overweight/obese women is regulated by an insulin-mediated suppression of IGF-binding protein-1 (IGFBP-1) and IGFBP-2, and by suppression of IGFBP-3, mediated by low GH...
March 10, 2018: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29679615/novel-protective-role-of-kallistatin-in-obesity-by-limiting-adipose-tissue-low-grade-inflammation-and-oxidative-stress
#2
Gema Frühbeck, Javier Gómez-Ambrosi, Amaia Rodríguez, Beatriz Ramírez, Víctor Valentí, Rafael Moncada, Sara Becerril, Xabier Unamuno, Camilo Silva, Javier Salvador, Victoria Catalán
OBJECTIVE: Kallistatin plays an important role in the inhibition of inflammation, oxidative stress, fibrosis and angiogenesis. We aimed to determine the impact of kallistatin on obesity and its associated metabolic alterations as well as its role in adipocyte inflammation and oxidative stress. METHODS: Samples obtained from 95 subjects were used in a case-control study. Circulating concentrations and expression levels of kallistatin as well as key inflammation, oxidative stress and extracellular matrix remodelling-related genes were analyzed...
April 18, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29679542/treatments-for-diabetes-mellitus-type-ii-new-perspectives-regarding-the-possible-role-of-calcium-and-camp-interaction
#3
REVIEW
Diego Soares Carvalho, Alexandre Aparecido de Almeida, Aurélio Ferreira Borges, Diego Vannucci Campos
Diabetes mellitus (DM) is among the top ten causes of death worldwide. It is considered to be one of the major global epidemics of the 21st century, with a significant impact on public health budgets. DM is a metabolic disorder with multiple etiologies. Its pathophysiology is marked by dysfunction of pancreatic β-cells which compromises the synthesis and secretion of insulin along with resistance to insulin action in peripheral tissues (muscle and adipose). Subjects presenting insulin resistance in DM type 2 often also exhibit increased insulin secretion and hyperinsulinemia...
April 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29679334/metabolic-surgery-and-diabesity-a-systematic-review
#4
REVIEW
Lionel El Khoury, Elie Chouillard, Elias Chahine, Elias Saikaly, Tarek Debs, Radwan Kassir
Bariatric surgery is used to induce weight loss (baros = weight). Evidence has shown that bariatric surgery improves the comorbid conditions associated with obesity such as hypertension, hyperlipidemia, and type 2 diabetes mellitus T2DM. Hence, shifting towards using metabolic surgery instead of bariatric surgery is currently more appropriate in certain subset of patients. Endocrine changes resulting from operative manipulation of the gastrointestinal tract after metabolic surgery translate into metabolic benefits with respect to the comorbid conditions...
April 20, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29678877/deferoxamine-ameliorates-adipocyte-dysfunction-by-modulating-iron-metabolism-in-ob-ob-mice
#5
Hong-Fa Yan, Zhao-Yu Liu, Zhi-Ang Guan, Chuang Guo
OBJECTIVE: The mechanisms underlying obesity and anti-obesity processes have garnered remarkable attention as potential therapeutic targets for obesity-associated metabolic syndromes. Our prior work has shown the healing efficacy of iron reduction therapies for hepatic steatosis in a rodent model of diabetes and obesity. In this study, we investigated how iron depletion by deferoxamine (DFO) affected adipocyte dysfunction in the epididymal adipose tissues of ob/ob mice. METHODS: Male ob/ob mice were assigned to either a vehicle-treated or DFO-treated group...
April 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29678576/aging-impairs-beige-adipocyte-differentiation-of-mesenchymal-stem-cells-via-the-reduced-expression-of-sirtuin-1
#6
Vuong Cat Khanh, Amin Firman Zulkifli, Chiho Tokunaga, Toshiharu Yamashita, Yuji Hiramatsu, Osamu Ohneda
In the body, different types of adipose tissue perform different functions, with brown and beige adipose tissues playing unique roles in dissipating energy. Throughout life, adipocytes are regenerated from progenitors, and this process is impaired by aging. One of the progenitors of adipocytes are mesenchymal stem cells (MSCs), which have recently become a promising tool for stem cell therapy. However, whether or not aging impairs the brown/beige adipocyte differentiation of adipose tissue-derived MSCs (AT-MSCs) remains unclear...
April 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29678523/safety-and-efficacy-of-mesenchymal-stem-cells-for-radiation-induced-xerostomia-a-randomized-placebo-controlled-phase-1-2-trial-mesrix
#7
Christian Grønhøj, David H Jensen, Peter Vester-Glowinski, Siri Beier Jensen, Allan Bardow, Roberto S Oliveri, Lea Munthe Fog, Lena Specht, Carsten Thomsen, Sune Darkner, Michael Jensen, Vera Müller, Katalin Kiss, Tina Agander, Elo Andersen, Anne Fischer-Nielsen, Christian von Buchwald
BACKGROUND: Salivary gland hypofunction and xerostomia are major complications to head and neck radiotherapy. This trial assessed the safety and efficacy of adipose tissue-derived mesenchymal stem cell (ASC) therapy for radiation-induced xerostomia. PATIENT AND METHODS: This randomized, placebo-controlled phase 1/2 trial included 30 patients, randomized in a 1:1 ratio to receive ultrasound-guided transplantation of ASCs or placebo to the submandibular glands. Patients had previously received radiotherapy for a T1-2, N0-2A, human papillomavirus-positive, oropharyngeal squamous cell carcinoma...
March 6, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29678181/a20-deubiquitinase-controls-pgc-1%C3%AE-expression-in-the-adipose-tissue
#8
Bruna Bombassaro, Leticia M Ignacio-Souza, Carla E Nunez, Daniela S Razolli, Rafael M Pedro, Andressa Coope, Eliana P Araujo, Elinton A Chaim, Licio A Velloso
BACKGROUND: Peroxisome proliferator-activated receptor γ coactivator- 1alpha (PGC-1α) plays an important role in whole body metabolism and, particularly in glucose homeostasis. Its expression is highly regulated and, small variations in tissue levels can have a major impact in a number of physiological and pathological conditions. Recent studies have shown that the ubiquitin/proteasome system plays a role in the control of PGC-1α degradation. METHODS: Here we evaluated the interaction of PGC-1α with the protein A20, which plays a dual-role in the control of the ubiquitin/proteasome system acting as a deubiquitinase and as an E3 ligase...
April 20, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29677586/impact-of-sarcopenic-obesity-on-30-day-mortality-in-critically-ill-patients-with-intra-abdominal-sepsis
#9
Yun Ji, Baoli Cheng, Zhipeng Xu, Hui Ye, Weina Lu, Xiaoqian Luo, Shuiqiao Fu, Xiangming Fang
PURPOSE: This study aimed to investigate the association between sarcopenic obesity and 30-day mortality in critically ill patients with intra-abdominal sepsis. MATERIAL AND METHODS: We analyzed 236 surgical ICU patients with sepsis due to intra-abdominal infection who underwent urgent surgical intervention. Sarcopenia, visceral obesity and sarcopenic obesity were analyzed by computed tomography scans using the third lumbar vertebrae skeletal muscle index and visceral adipose tissue area, using previously reported cutoff values...
March 16, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29677533/proresolving-protein-annexin-a1-the-role-in-type-2-diabetes-mellitus-and-obesity
#10
Nathalia T Pietrani, Cláudia N Ferreira, Kathryna F Rodrigues, Luiza O Perucci, Fernanda S Carneiro, Adriana A Bosco, Marina C Oliveira, Solange S Pereira, Antônio L Teixeira, Jacqueline I Alvarez-Leite, Adaliene V Ferreira, Lirlândia P Sousa, Karina B Gomes
BACKGROUND: Annexin A1 (AnxA1) is a protein involved in inflammation resolution that might be altered in obesity-associated type 2 diabetes mellitus (DM), which is a chronic inflammatory disease. The aim of this study was to evaluate AnxA1 serum levels in individuals with and without DM stratified according to the body mass index (BMI), and the dynamic of AnxA1 expression in adipose tissue from humans with obesity and non-obesity. METHODS: Serum samples were obtained from 41 patients with DM (lean, overweight and obese) and 40 controls, and adipose tissue samples were obtained from 16 individuals with obesity (with or without DM), and 15 controls...
April 17, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29677105/the-chemical-composition-and-metabolic-effects-of-attalea-phalerata-nut-oil-in-hyperlipidemic-rats-induced-by-a-high-fructose-diet
#11
Débora da Silva Baldivia, Eliana Janet Sanjinez-Argandonã, Kátia Ávila Antunes, Izabel Cristina Freitas Moraes, Edson Lucas Dos Santos, Kely de Picoli Souza
The fatty acids found in nuts are important regulators of the metabolism. These acids are frequently associated with a reduction of serum cholesterol and body fat and a lower risk of developing cardiovascular disease. In this context, the aim of this study was to identify and quantify the nut oil fatty acids from Attalea phalerata and investigate their metabolic effects in rats with hyperlipidemia induced by a diet rich in fructose. Oleic and lauric acids were the major compounds found in the A. phalerata nut oil (APNO)...
April 20, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29676547/morphologic-comparison-of-peripheral-nerves-in-adipocyte-tissue-from-db-db-diabetic-versus-normal-mice
#12
Kyung Ae Lee, Na Young Lee, Tae Sun Park, Heung Yong Jin
Present study investigated the morphologic changes of autonomic nerves in the adipose tissue in diabetic animal model. Male obese type 2 diabetic db/db mice and age matched non-diabetic db/m control mice were used. Epididymal adipose tissue from diabetic db/db mice with that from control heterozygous db/m mice was compared using confocal microscopy-based method to visualize intact whole adipose tissue. Immunohistochemistry with tyrosine hydroxylase for sympathetic (SP), choline acetyltransferase for parasympathetic (PSP), and protein gene product 9...
April 2018: Diabetes & Metabolism Journal
https://www.readbyqxmd.com/read/29676541/primary-cilia-as-a-signaling-platform-for-control-of-energy-metabolism
#13
REVIEW
Do Kyeong Song, Jong Han Choi, Min Seon Kim
Obesity has become a common healthcare problem worldwide. Cilia are tiny hair-like organelles on the cell surface that are generated and anchored by the basal body. Non-motile primary cilia have been considered to be evolutionary rudiments until a few decades, but they are now considered as important signaling organelles because many receptors, channels, and signaling molecules are highly expressed in primary cilia. A potential role of primary cilia in metabolic regulation and body weight maintenance has been suspected based on rare genetic disorders termed as ciliopathy, such as Bardet-Biedl syndrome and Alström syndrome, which manifest as obesity...
April 2018: Diabetes & Metabolism Journal
https://www.readbyqxmd.com/read/29676207/housekeeping-gene-stability-in-human-mesenchymal-stem-and-tendon-cells-exposed-to-tenogenic-factors
#14
Marco Viganò, Carlotta Perucca Orfei, Laura de Girolamo, John Pearson, Enrico Ragni, Paola De Luca, Alessandra Colombini
The use of biochemical inducers of mesenchymal stem cells (MSCs) differentiation into tenogenic lineage represents an investigated aspect of tendon disorder treatment. Bone morphogenetic protein 12 (BMP-12) is a widely studied factor, representing along with ascorbic acid (AA) and basic fibroblast growth factor (bFGF) one of the most promising stimulus in this context so far. Quantitative gene expression of specific tenogenic marker is commonly used to assess the efficacy of these supplements. Nevertheless, the reliability of these data is strongly associated with the choice of stable housekeeping genes...
April 20, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29676049/moderate-weight-loss-improves-body-composition-and-metabolic-function-in-metabolically-unhealthy-lean-subjects
#15
Yu Chung Chooi, Cherlyn Ding, Zhiling Chan, John Choo, Suresh Anand Sadananthan, Navin Michael, Yijun Lee, S Sendhil Velan, Faidon Magkos
OBJECTIVE: Individuals who have "metabolically obese normal weight" (MONW) have an increased risk for cardiometabolic disease. Moderate weight loss has multiple benefits in people with obesity, but its effects in lean people are unknown. Thus, the effects of diet-induced 5% weight loss on body composition and metabolic function in MONW subjects were evaluated. METHODS: Total body fat, visceral adipose tissue (VAT) and subcutaneous abdominal adipose tissue (SAT) volumes, intrahepatic and intramyocellular lipid contents, insulin sensitivity (hyperinsulinemic-euglycemic clamp), glucose tolerance, and postprandial insulin secretion and clearance rates (mixed meal with minimal modeling) were measured before and after 4...
April 19, 2018: Obesity
https://www.readbyqxmd.com/read/29676025/an-unsupervised-automatic-segmentation-algorithm-for-breast-tissue-classification-of-dedicated-breast-computed-tomography-images
#16
Marco Caballo, John M Boone, Ritse Mann, Ioannis Sechopoulos
PURPOSE: To develop and evaluate a new automatic classification algorithm able to identify voxels containing skin, vasculature, adipose and fibroglandular tissue in dedicated breast CT images. METHODS: The proposed algorithm combines intensity and region-based segmentation methods with energy minimizing splines and unsupervised data mining approaches for classifying and segmenting the different tissue types. Breast skin segmentation is achieved by a region growing method which uses constraints from the previously extracted skin centerline to add robustness to the model and to reduce the false positive rate...
April 19, 2018: Medical Physics
https://www.readbyqxmd.com/read/29675734/co-culture-system-of-hepatocytes-and-endothelial-cells-two-in-vitro-approaches-for-enhancing-liver-specific-functions-of-hepatocytes
#17
Gaoxiong Wang, Youshi Zheng, Yingchao Wang, Zhixiong Cai, Naishun Liao, Jingfeng Liu, Wenmin Zhang
Although hepatocyte transplantation and bioartificial liver support system provide new promising opportunities for those patients waiting for liver transplantation, hepatocytes are easily losing liver-specific functions by using the common in vitro cultured methods. The co-culture strategies with mimicking the in vivo microenvironment would facilitate the maintenance of liver-specific functions of hepatocytes. Considering that hepatocytes and endothelial cells (ECs) account for 80-90% of total cell populations in the liver, hepatocytes and ECs were directly co-cultured with hepatic stellate cells (HSCs) or adipose tissue-derived stem cells (ADSCs) at a ratio of 700:150:3 or 14:3:3 in the present study, and the liver-specific functions were carefully analyzed...
April 19, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29675684/the-role-of-epicardial-fat-in-pericardial-diseases
#18
REVIEW
George Lazaros, Alexios Antonopoulos, Charalambos Antoniades, Dimitris Tousoulis
PURPOSE OF REVIEW: Despite the recent advancements in diagnostic modalities and therapeutic options available, the pathophysiology of pericardial syndromes remains poorly understood. In this review article, we explore the possible links between cardiac adiposity and pericardial syndromes. RECENT FINDINGS: Over the last years, the notion of cardiac adipose tissue has radically changed, and its pivotal role in myocardial diseases has been acknowledged. Recent evidence suggests a cross-talk between epicardial fat and the heart...
April 19, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29675584/brown-adipokines
#19
Francesc Villarroya, Aleix Gavaldà-Navarro, Marion Peyrou, Joan Villarroya, Marta Giralt
Brown adipokines are regulatory factors secreted by brown and beige adipocytes that exhibit endocrine, paracrine, and autocrine actions. Peptidic and non-peptidic molecules, including miRNAs and lipids, are constituents of brown adipokines. Brown adipose tissue remodeling to meet thermogenic needs is dependent on the secretory properties of brown/beige adipocytes. The association between brown fat activity and a healthy metabolic profile, in relation to energy balance and glucose and lipid homeostasis, is influenced by the endocrine actions of brown adipokines...
April 20, 2018: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/29675580/brown-adipose-tissue-in-human-infants
#20
Martin E Lidell
Adapting to the cold extrauterine environment after birth is a great challenge for the newborn. Due to their high surface area-to-volume ratio, infants tend to lose more heat to the environment as compared to adults. In addition, human newborns lack sufficiently developed skeletal muscle mass to maintain body temperature through shivering thermogenesis, an important source of heat in cold-exposed adults. Evolution has provided humans and other placental mammals with brown adipose tissue (BAT), a tissue that converts chemically stored energy, in the form of fatty acids and glucose, into heat through non-shivering thermogenesis...
April 20, 2018: Handbook of Experimental Pharmacology
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