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Adipose tissue vascularization

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https://www.readbyqxmd.com/read/28809783/role-of-omentin-vaspin-cardiotrophin-1-tweak-and-nov-ccn3-in-obesity-and-diabetes-development
#1
REVIEW
Xavier Escoté, Saioa Gómez-Zorita, Miguel López-Yoldi, Iñaki Milton-Laskibar, Alfredo Fernández-Quintela, J Alfredo Martínez, María J Moreno-Aliaga, María P Portillo
Adipose tissue releases bioactive mediators called adipokines. This review focuses on the effects of omentin, vaspin, cardiotrophin-1, Tumor necrosis factor-like Weak Inducer of Apoptosis (TWEAK) and nephroblastoma overexpressed (NOV/CCN3) on obesity and diabetes. Omentin is produced by the stromal-vascular fraction of visceral adipose tissue. Obesity reduces omentin serum concentrations and adipose tissue secretion in adults and adolescents. This adipokine regulates insulin sensitivity, but its clinical relevance has to be confirmed...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28801931/immunomodulatory-effects-of-adipose-stromal-vascular-fraction-cells-promote-alternative-activation-macrophages-to-repair-tissue-damage
#2
Annie C Bowles, Rachel M Wise, Brittany Y Gerstein, Robert C Thomas, Roberto Ogelman, Isabella Febbo, Bruce A Bunnell
The pathogenesis of many diseases is driven by the interactions between helper T (TH ) cells and macrophages. The phenotypes of these cells are a functional dichotomy that are persuaded according to the surrounding milieu. In both multiple sclerosis (MS) and the experimental autoimmune encephalomyelitis (EAE) model, TH 1 and TH 17 cells propagate autoimmune signaling and inflammation in the peripheral lymphoid tissues. In turn, this pro-inflammatory repertoire promotes the classical activation, formerly the M1-type, macrophages...
August 12, 2017: Stem Cells
https://www.readbyqxmd.com/read/28800775/lack-of-high-bmi-related-features-in-adipocytes-and-inflammatory-cells-in-the-infrapatellar-fat-pad-ifp
#3
Anja J de Jong, Inge R Klein-Wieringa, Stefan N Andersen, Joanneke C Kwekkeboom, Linda Herb-van Toorn, Badelog J E de Lange-Brokaar, Danny van Delft, John Garcia, Wu Wei, Huub J L van der Heide, Yvonne M Bastiaansen-Jenniskens, Gerjo J V M van Osch, Annemarie M Zuurmond, Vedrana Stojanovic-Susulic, Rob G H H Nelissen, René E M Toes, Margreet Kloppenburg, Andreea Ioan-Facsinay
BACKGROUND: Obesity is associated with the development and progression of osteoarthritis (OA). Although the infrapatellar fat pad (IFP) could be involved in this association, due to its intracapsular localization in the knee joint, there is currently little known about the effect of obesity on the IFP. Therefore, we investigated cellular and molecular body mass index (BMI)-related features in the IFP of OA patients. METHODS: Patients with knee OA (N = 155, 68% women, mean age 65 years, mean (SD) BMI 29...
August 11, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28799895/arginine-and-aerobic-training-prevent-endothelial-and-metabolic-alterations-in-rats-at-high-risk-for-the-development-of-the-metabolic-syndrome
#4
Renata F Medeiros, Thaiane G Gaique, Thais Bento-Bernardes, Raquel Kindlovits, Tamiris M B Gomes, Nadia Alice V Motta, Fernanda Carla Brito, Caroline Fernandes-Santos, Karen J Oliveira, Antonio Claudio L Nóbrega
Endothelial function is a key mechanism in the development of CVD. Arginine and exercise are important non-pharmacological strategies for mitigating the impact of metabolic changes in the metabolic syndrome, but the effect of their combined administration is unknown. Thus, the aim of this study was to investigate the isolated and combined effects of aerobic training and arginine supplementation on metabolic variables and vascular reactivity in rats at high risk for developing the metabolic syndrome. Wistar rats were divided into two groups: control and fructose (F - water with 10 % fructose)...
July 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28798193/the-role-of-vascular-endothelial-growth-factor-b-in-metabolic-homeostasis-current-evidence
#5
Mohammad Ishraq Zafar, Juan Zheng, Wen Kong, Xiaofeng Ye, Luoning Gou, Anita Regmi, Lu-Lu Chen
It has been shown that adipose tissue and skeletal muscles of lean individuals respond to meal-induced hyperinsulinemia by increases in perfusion, the effect not observed in patients with metabolic syndrome. In conditions of hyperglycaemia and hypertriglyceridemia, this insufficient vascularization leads to the liberation of reactive oxygen species, and disruption of nitric oxide synthesis and endothelial signalling responsible for the uptake of circulating fatty acids, whose accumulation in skeletal muscles and adipose tissue is widely associated with impairment of insulin signalling...
August 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28797835/tumor-necrosis-factor-%C3%AE-receptor-1-contributes-to-ethanol-induced-vascular-reactive-oxygen-species-generation-and-hypertension
#6
Janaina A Simplicio, Natália A Gonzaga, Marcelo A Nakashima, Bruno S De Martinis, Thiago M Cunha, Luis F Tirapelli, Carlos R Tirapelli
We evaluated the contribution of tumor necrosis factor-α receptor 1 (TNFR1) to ethanol-induced hypertension and vascular oxidative stress and the possible role of perivascular adipose tissue (PVAT) in such responses. Male C57BL/6 wild-type (WT) or TNFR1-deficient mice (TNFR1(-/-)) were treated with ethanol (20% vol/vol) for 12 weeks. Ethanol induced an increase in blood pressure in WT mice and TNFR1(-/-) at 4 and 5 weeks of treatment, respectively. Treatment with ethanol increased tumor necrosis factor-α and interleukin-6 levels in aortas with or without PVAT (PVAT+ and PVAT-, respectively) from WT mice, but not TNFR1(-/-)...
July 22, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28793833/synergistic-therapeutic-effect-of-three-dimensional-stem-cell-clusters-and-angiopoietin-1-on-promoting-vascular-regeneration-in-ischemic-region
#7
Jungmi Kang, Jeong-Kee Yoon, Seung Ja Oh, Byung-Soo Kim, Sang-Heon Kim
Peripheral artery disease (PAD) is an ischemic disease characterized by reduced blood flow to the legs, feet, and hands. Human mesenchymal stem cells (MSCs) are an attractive cell source to treat PAD in regenerative medicine. However, in clinical applications, the use of adult stem cells has several limitations, such as low cell viability and low therapeutic efficiency. In the present study, we described an innovative method of culturing three-dimensional stem cell clusters (AngioclusterTM, AC), demonstrated the potential for ACs to differentiate into vascular cells, and assessed the synergistic effects of ACs and angiopoietin-1 (Ang-1) on angiogenesis in ischemic animal models...
August 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28791287/bidirectional-mast-cell-eosinophil-interactions-in-inflammatory-disorders-and-cancer
#8
REVIEW
Maria Rosaria Galdiero, Gilda Varricchi, Mansour Seaf, Giancarlo Marone, Francesca Levi-Schaffer, Gianni Marone
Human mast cells (MCs) and eosinophils were first described and named by Paul Ehrlich. These cells have distinct myeloid progenitors and differ morphologically, ultrastructurally, immunologically, biochemically, and pharmacologically. However, MCs and eosinophils play a pivotal role in several allergic disorders. In addition, these cells are involved in autoimmune disorders, cardiovascular diseases, and cancer. MCs are distributed throughout all normal human tissues, whereas eosinophils are present only in gastrointestinal tract, secondary lymphoid tissues, and adipose tissue, thymus, mammary gland, and uterus...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28781950/role-of-the-tgf-%C3%AE-pathway-in-dedifferentiation-of-human-mature-adipocytes
#9
Julie Anne Côté, Julie Lessard, Mélissa Pelletier, Simon Marceau, Odette Lescelleur, Julie Fradette, André Tchernof
Dedifferentiation of adipocytes contributes to the generation of a proliferative cell population that could be useful in cellular therapy or tissue engineering. Adipocytes can dedifferentiate into precursor cells to acquire a fibroblast-like phenotype using ceiling culture, in which the buoyancy of fat cells is exploited to allow them to adhere to the inner surface of a container. Ceiling culture is usually performed in flasks, which limits the ability to test various culture conditions. Using a new six-well plate ceiling culture approach, we examined the relevance of TGF-β signaling during dedifferentiation...
August 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28776278/expression-of-thyroid-stimulating-hormone-receptors-and-thyroglobulin-in-limbic-regions-in-the-adult-human-brain
#10
Meleshni Naicker, Strinivasen Naidoo
Expression of the human thyroid-specific proteins, thyroid-stimulating hormone receptor (TSH-R) and thyroglobulin (TG) in non-thyroid tissue is well-documented. TSH-R has been identified in the heart, kidney, bone, pituitary, adipose tissue, skin and astrocyte cultures. TG has been identified in the skin, thymus and kidney. However, none of those previous studies had identified TSH-R or TG in specific human brain regions. Previously, a pilot study conducted by our group on normal adult human brain demonstrated TSH-R and TG in cortical neurons and cerebral vasculature, respectively, within various brain areas...
August 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28776262/visceral-adipose-tissue-derived-serine-protease-inhibitor-prevents-the-development-of-monocrotaline-induced-pulmonary-arterial-hypertension-in-rats
#11
Yuzaburo Sakamoto, Satoshi Kameshima, Chiharu Kakuda, Yuta Okamura, Tomoko Kodama, Muneyoshi Okada, Hideyuki Yamawaki
Visceral adipose tissue-derived serine protease inhibitor (vaspin), a recently identified adipocytokine, inhibits inflammation, migration, and apoptosis of vascular cells. We have recently demonstrated that chronic administration of vaspin to spontaneously hypertensive rats partly prevents systemic hypertension through inhibiting inflammation and remodeling of vascular wall. Pulmonary arterial (PA) hypertension (PAH) is caused by PA remodeling, contractile dysfunction, and inflammatory responses. We tested the hypothesis that vaspin could prevent development of PAH in animal model...
August 3, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28769981/human-suprapatellar-fat-pad-derived-mesenchymal-stem-cells-induce-chondrogenesis-and-cartilage-repair-in-a-model-of-severe-osteoarthritis
#12
Ignacio Muñoz-Criado, Jose Meseguer-Ripolles, Maravillas Mellado-López, Ana Alastrue-Agudo, Richard J Griffeth, Jerónimo Forteza-Vila, Ramón Cugat, Montserrat García, Victoria Moreno-Manzano
Cartilage degeneration is associated with degenerative bone and joint processes in severe osteoarthritis (OA). Spontaneous cartilage regeneration is extremely limited. Often the treatment consists of a partial or complete joint implant. Adipose-derived stem cell (ASC) transplantation has been shown to restore degenerated cartilage; however, regenerative differences of ASC would depend on the source of adipose tissue. The infra- and suprapatellar fat pads surrounding the knee offer a potential autologous source of ASC for patients after complete joint substitution...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28769083/human-adipose-derived-mesenchymal-stem-cells-seeded-into-a-collagen-hydroxyapatite-scaffold-promote-bone-augmentation-after-implantation-in-the-mouse
#13
Giovanna Calabrese, Raffaella Giuffrida, Stefano Forte, Claudia Fabbi, Elisa Figallo, Lucia Salvatorelli, Lorenzo Memeo, Rosalba Parenti, Massimo Gulisano, Rosario Gulino
Traumatic injury or surgical excision of diseased bone tissue usually require the reconstruction of large bone defects unable to heal spontaneously, especially in older individuals. This is a big challenge requiring the development of biomaterials mimicking the bone structure and capable of inducing the right commitment of cells seeded within the scaffold. In particular, given their properties and large availability, the human adipose-derived stem cells are considered as the better candidate for autologous cell transplantation...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28766950/imaging-features-of-rare-mesenychmal-liver-tumors-beyond-hemangiomas
#14
Rajesh Thampy, Khaled M Elsayes, Christine O Menias, Perry J Pickhardt, Hyunseon C Kang, Sandeep Deshmukh, Kareem Ahmed, Brinda Rao Korivi
Tumors arising from mesenchymal tissue components such as vascular, fibrous and adipose tissue can manifest in the liver. Although histopathology is often necessary for definitive diagnosis, many of these lesions exhibit characteristic imaging features. The radiologist plays an important role in suggesting the diagnosis, which can direct appropriate immunohistochemical staining at histology. The aim of this review is to present clinical and imaging findings of a spectrum of mesenchymal liver tumors such as hemangioma, epithelioid hemangioendothelioma, lipoma, PEComa, angiosarcoma, inflammatory myofibroblastic tumor, solitary fibrous tumor, leiomyoma, leiomyosarcoma, Kaposi sarcoma, mesenchymal hamartoma, undifferentiated embryonal sarcoma, rhabdomyosarcoma and hepatic metastases...
August 2, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28764153/correlation-of-adiposity-indices-with-electrocardiographic-ventricular-variables-and-vascular-stiffness-in-young-adults
#15
Varrshine Ravikumar, Hemamalini Ramasamy VajraVelu, Saravanan Ayyavoo, Balaji Ramraj
INTRODUCTION: Excess adiposity constitute an important public health problem because of the associated increased risk of hypertension, coronary heart disease, type 2 diabetes and other disorders. Not only the contribution of general measures of adiposity but also central measures of adiposity have been observed. AIM: To compare and correlate the central and general adiposity indices with ventricular electrocardiographic variables and vascular stiffness indices in normal, overweight and obese young adults...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762474/adipokines-psoriasis-systemic-inflammation-and-endothelial-dysfunction
#16
REVIEW
Maeve Lynch, Tomas Ahern, Cheryl M Sweeney, Anna Malara, Anne-Marie Tobin, Donal O'Shea, Brian Kirby
Adipokines are secreted by white adipose tissue, an active endocrine organ, and play a role in the regulation of metabolic functions such as lipid metabolism, inflammation, and vascular homeostasis. Adipokines are secreted in excess in obesity and contribute to the development of associated comorbidities such as metabolic syndrome and atherosclerosis. Psoriasis, a chronic immune-mediated skin disease, is associated with obesity and increased cardiovascular risk. Understanding the role of adipokines in psoriasis may in part explain the association between psoriasis and cardiovascular disease...
August 1, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28762019/epicardial-adipose-tissue-as-a-metabolic-transducer-role-in-heart-failure-and-coronary-artery-disease
#17
REVIEW
Vaibhav B Patel, Saumya Shah, Subodh Verma, Gavin Y Oudit
Obesity and diabetes are strongly associated with metabolic and cardiovascular disorders including dyslipidemia, coronary artery disease, hypertension, and heart failure. Adipose tissue is identified as a complex endocrine organ, which by exerting a wide array of regulatory functions at the cellular, tissue and systemic levels can have profound effects on the cardiovascular system. Different terms including "epicardial," "pericardial," and "paracardial" have been used to describe adipose tissue deposits surrounding the heart...
July 31, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28760942/perivascular-adipose-tissue-angiotensin-ii-type-1-receptor-promotes-vascular-inflammation-and-aneurysm-formation
#18
Tomoki Sakaue, Jun Suzuki, Mika Hamaguchi, Chika Suehiro, Akiko Tanino, Tomoaki Nagao, Teruyoshi Uetani, Jun Aono, Hirotomo Nakaoka, Mie Kurata, Tomohisa Sakaue, Takafumi Okura, Takumi Yasugi, Hironori Izutani, Jitsuo Higaki, Shuntaro Ikeda
Perivascular adipose tissue exhibits characteristics of active local inflammation, which contributes to the development of atherosclerotic disease as a complication of obesity/metabolic syndrome. However, the precise role of perivascular adipose tissue in the progression of abdominal aortic aneurysm remains unclear. To test the hypothesis that genetic deletion of angiotensin II type 1a (AT1a) receptor in perivascular visceral adipose tissue (VAT) can attenuate aortic aneurysm formation in apolipoprotein E-deficient (ApoE(-/-)) mice, we performed adipose tissue transplantation experiments by using an angiotensin II-induced aneurysm murine model, in which we transplanted VAT from ApoE(-/-) or ApoE(-/-) AT1a(-/-) donor mice onto the abdominal aorta of ApoE(-/-) recipient mice...
July 31, 2017: Hypertension
https://www.readbyqxmd.com/read/28756250/vaspin-suppresses-cytokine-induced-inflammation-in-3t3-l1-adipocytes-via-inhibition-of-nf%C3%AE%C2%BAb-pathway
#19
Konstanze Zieger, Juliane Weiner, Kerstin Krause, Maximilian Schwarz, Martin Kohn, Michael Stumvoll, Matthias Blüher, John T Heiker
Vaspin expression is increased in white adipose tissue (WAT) of diet-induced obese mice and rats and is supposed to compensate HFD-induced inflammatory processes and insulin resistance in adipose tissue by counteracting pro-inflammatory gene expression in obesity. Multiple studies have also demonstrated strong anti-inflammatory effects in vascular and skin cells. Here, we used vaspin treated 3T3-L1 murine adipocytes as well as 3T3-L1 cells with stable vaspin expression to investigate the effect of exogenous and endogenous vaspin on inflammatory processes and insulin signaling in adipocytes...
July 26, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28754674/adipose-progenitor-cell-secretion-of-gm-csf-and-mmp9-promotes-a-stromal-and-immunological-microenvironment-that-supports-breast-cancer-progression
#20
Francesca Reggiani, Valentina Labanca, Patrizia Mancuso, Cristina Rabascio, Giovanna Talarico, Stefania Orecchioni, Andrea Manconi, Francesco Bertolini
A cell population with progenitor-like phenotype (CD45-CD34+) resident in human white adipose tissue (WAT) is known to promote the progression of local and metastatic breast cancer and angiogenesis. However, the molecular mechanisms of the interaction have not been elucidated. In this study, we identified two proteins that were significantly up-regulated in WAT-derived progenitors after co-culture with breast cancer: granulocyte-macrophage colony-stimulating factor (GM-CSF) and matrix metallopeptidase 9 (MMP9)...
July 28, 2017: Cancer Research
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