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https://www.readbyqxmd.com/read/28429344/up-regulation-of-microrna-367-promotes-liver-steatosis-through-repressing-tbl1-in-obese-mice
#1
D-D Li, Y Liu, L Xue, D-Y Su, W-Y Pang
OBJECTIVE: Increasing evidence has demonstrated that microRNAs (miRNAs) play a critical role in the progression of metabolic disorders, including obesity-induced non-alcoholic fatty liver disease (NAFLD). In the present study, the expression and function of miR-367 were investigated. MATERIALS AND METHODS: C57BL/6 male mice aged 8 weeks were fed with a normal diet (ND) or high-fat-diet (HFD). The expression levels of miR-367 were analyzed in livers from two groups of mice by quantitative real-time PCR...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28413320/panax-ginseng-meyer-prevents-radiation-induced-liver-injury-via-modulation-of-oxidative-stress-and-apoptosis
#2
Hyeong-Geug Kim, Seong-Soon Jang, Jin-Seok Lee, Hyo-Seon Kim, Chang-Gue Son
BACKGROUND: Radiotherapy is one of the most important modalities in cancer treatment; however, normal tissue damage is a serious concern. Drug development for the protection or reduction of normal tissue damage is therefore a clinical issue. Herein, we evaluated the protective properties of Panax ginseng Meyer and its corresponding mechanisms. METHODS: C56BL/6 mice were orally pretreated with P. ginseng water extract (PGE; 25 mg/kg, 50 mg/kg, or 100 mg/kg) or intraperitoneally injected melatonin (20 mg/kg) for 4 d consecutively, then exposed to 15-Gy X-ray radiation 1 h after the last administration...
April 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28410969/characterization-and-mechanism-of-phosphoinositide-3-kinases-pi3ks-members-in-insulin-induced-changes-of-protein-metabolism-in-yellow-catfish-pelteobagrus-fulvidraco
#3
Mei-Qin Zhuo, Yan-Xiong Pan, Kun Wu, Yi-Huan Xu, Zhi Luo
In the present study, seven phosphoinositide 3-kinase (PI3K) members (PI3KCa, PI3KCb, PI3KCd, PI3KCg, PI3KC2a, PI3KC2b and PI3KC3, respectively) were isolated and characterized from yellow catfish Pelteobagrus fulvidraco, and their roles in insulin-induced changes of protein metabolism were determined. These seven PI3Ks can be divided into three classes, class I (including PI3KCa, PI3KCb, PI3KCd and PI3KCg), class II (including PI3KC2a and PI3KC2b) and class III (only including PI3KC3). Compared with mammals, all of these members share similar domain structure...
April 11, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28410190/dietary-oleuropein-inhibits-tumor-angiogenesis-and-lymphangiogenesis-in-the-b16f10-melanoma-allograft-model-a-mechanism-for-the-suppression-of-high-fat-diet-induced-solid-tumor-growth-and-lymph-node-metastasis
#4
Hyerim Song, Do Young Lim, Jae In Jung, Han Jin Cho, So Young Park, Gyoo Taik Kwon, Young-Hee Kang, Ki Won Lee, Myung-Sook Choi, Jung Han Yoon Park
Previously, we reported that high-fat-diet (HFD)-induced obesity stimulates melanoma progression in the B16F10 allograft model. In this study, we examined whether oleuropein (OL), the most abundant phenolic compound in olives, inhibits HFD-induced melanoma progression. Four-week-old male C57BL/6N mice were fed a HFD-diet with or without OL. After 16 weeks of feeding, B16F10-luc cells were subcutaneously injected and the primary tumor was resected 3 weeks later. OL suppressed HFD-induced solid tumor growth. In the tumor tissues, OL reduced HFD-induced expression of angiogenesis (CD31, VE-cadherin, VEGF-A, and VEGFR2), lymphangiogenesis (LYVE-1, VEGF-C, VEGF-D, and VEGFR3), and hypoxia (HIF-1α and GLUT-1) markers as well as HFD-induced increases in lipid vacuoles and M2 macrophages (MΦs)...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409883/melanocortin-4-receptor-activation-attenuates-mitochondrial-dysfunction-in-skeletal-muscle-of-diabetic-rats
#5
Hao-Hao Zhang, Jiao Liu, Gui-Jun Qin, Xia-Lian Li, Pei-Jie Du, Xiao Hao, Tian-Tian Tian, Jing- Wu, Meng- Yun, Yan-Hui Bai
Backgroud: A previous study has confirmed that the central melanocortin system was able to mediate skeletal muscle AMP-activated protein kinase (AMPK) activation in mice fed a high-fat diet, while activation of the AMPK signaling pathway significantly induced mitochondrial biogenesis. Our hypothesis was that melanocortin 4 receptor (MC4R) was involved in the development of skeletal muscle injury in diabetic rats. METHODS: In this study, we treated diabetic rats intracerebroventricularly with MC4R agonist R027-3225 or antagonist SHU9119, respectively...
April 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28402587/methotraxate-loaded-hybrid-nanoconstructs-target-vascular-lesions-and-inhibit-atherosclerosis-progression-in-apoe-mice
#6
Cinzia Stigliano, Maricela R Ramirez, Jaykrishna V Singh, Santosh Aryal, Jaehong Key, Elvin Blanco, Paolo Decuzzi
Atherosclerosis is an inflammatory disorder characterized by the progressive thickening of blood vessel walls eventually resulting in acute vascular syndromes. Here, intravenously injectable hybrid nanoconstructs are synthesized for tempering immune cell inflammation locally and systemically. Lipid and polymer chains are nanoprecipitated to form 100 nm spherical polymeric nanoconstructs (SPNs), loaded with methotrexate (MTX) and subsequently labeled with Cu(64) and fluorescent probes for combined nuclear/optical imaging...
April 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28402022/steroidogenic-acute-regulatory-protein-star-overexpression-reduces-inflammation-and-insulin-resistance-in-obese-mice
#7
Yanyan Qiu, Xianxian Sui, Shengxuan Cao, Xiaobo Li, Yanxia Ning, Songmei Wang, Lianhua Yin, Xiuling Zhi
Steroidogenic acute regulatory protein (StAR), a mitochondrial cholesterol delivery protein, plays a beneficial role in hyperlipidemia, NAFLD and endothelial inflammation. Elevated circulating fatty acids and low grade inflammation are known as key risk factors of insulin resistance and type 2 diabetes. In the present study, C57BL/6J mice were fed with a HFD and infected with recombinant adenovirus expressing StAR by tail-vein injection. Intraperitoneal glucose/insulin tolerance test was performed to assess the insulin sensitivity...
April 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28399190/expression-of-the-insect-metalloproteinase-inhibitor-impi-in-the-fat-body-of-galleria-mellonella-exposed-to-infection-with-beauveria-bassiana
#8
Lidiia Vertyporokh, Iwona Wojda
The inducible metalloproteinase inhibitor (IMPI) discovered in Galleria mellonella is currently the only specific inhibitor of metalloproteinases found in animals. Its role is to inhibit the activity of metalloproteinases secreted by pathogenic organisms as virulence factors to degrade immune-relevant polypeptides of the infected host. This is a good example of an evolutionary arms race between the insect hosts and their natural pathogens. In this report, we analyze the expression of a gene encoding an inducible metalloproteinase inhibitor (IMPI) in fat bodies of the greater wax moth larvae Galleria mellonella infected with an entomopathogenic fungus Beauveria bassiana...
April 11, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28398929/comprehensive-dynamic-contrast-enhanced-3d-magnetic-resonance-imaging-of-the-breast-with-fat-water-separation-and-high-spatiotemporal-resolution-using-radial-sampling-compressed-sensing-and-parallel-imaging
#9
Thomas Benkert, Kai Tobias Block, Samantha Heller, Melanie Moccaldi, Daniel K Sodickson, Sungheon Gene Kim, Linda Moy
OBJECTIVES: The aim of this study was to assess the applicability of Dixon radial volumetric encoding (Dixon-RAVE) for comprehensive dynamic contrast-enhanced 3D magnetic resonance imaging (MRI) of the breast using a combination of radial sampling, model-based fat/water separation, compressed sensing, and parallel imaging. MATERIALS AND METHODS: In this Health Insurance Portability and Accountability Act-compliant prospective study, 24 consecutive patients underwent bilateral breast MRI, including both conventional fat-suppressed and non-fat-suppressed precontrast T1-weighted volumetric interpolated breath-hold examination (VIBE)...
April 11, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28397049/atp-synthase-%C3%AE-subunit-abnormality-in-pancreas-islets-of-rats-with-polycystic-ovary-syndrome-and-type-2-diabetes-mellitus
#10
Wei Li, Sai-Jiao Li, Tai-Lang Yin, Jing Yang, Yan Cheng
This study investigated the abnormal expression of ATP synthase β-subunit (ATPsyn-β) in pancreas islets of rat model of polycystic ovary syndrome (PCOS) with type 2 diabetes mellitus (T2DM), and the secretion function changes after up-regulation of ATP5b. Sixty female SD rats were divided into three groups randomly and equally. The rat model of PCOS with T2DM was established by free access to the high-carbohydrate/high-fat diet, subcutaneous injections of DHEA, and a single injection of streptozotocin. The pancreas was removed for the detection of the ATPsyn-β expression by immunohistochemical staining, Western blotting and reverse transcription-PCR (RT-PCR)...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28395338/acidification-of-uterine-epithelium-during-embryo-implantation-in-mice%C3%A2
#11
Shuo Xiao, Rong Li, Ahmed E El Zowalaty, Honglu Diao, Fei Zhao, Yongwon Choi, Xiaoqin Ye
Uterine luminal epithelium (LE) is essential for establishing uterine receptivity. Previous microarray analysis revealed upregulation of Atp6v0d2 in gestation day 4.5 (D4.5) LE in mice. Realtime PCR showed upregulation of uterine Atp6v0d2 starting right before embryo attachment ∼D4.0. In situ hybridization demonstrated specific uterine localization of Atp6v0d2 in LE upon embryo implantation. Atp6v0d2 encodes one subunit for vacuolar-type H+-ATPase (V-ATPase), which regulates acidity of intracellular organelles and extracellular environment...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28394319/activation-of-nlrp3-inflammasomes-contributes-to-hyperhomocysteinemia-aggravated-inflammation-and-atherosclerosis-in-apoe-deficient-mice
#12
Renqing Wang, Yiqin Wang, Nana Mu, Xiaoying Lou, Weixuan Li, Yanming Chen, Dong Fan, Hongmei Tan
Hyperhomocysteinemia (HHcy) has been shown to promote vascular inflammation and atherosclerosis, but the underlying mechanisms remain largely unknown. The NLRP3 inflammasome has been identified as the cellular machinery responsible for activation of inflammatory processes. In this study, we hypothesized that the activation of NLRP3 inflammasomes contributes to HHcy-induced inflammation and atherosclerosis. ApoE(-/-) mice were fed regular chow, high-fat (HF) diet, or HF plus high methionine diet to induce HHcy...
April 10, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28392962/anti-diabetic-effects-of-an-ethanol-extract-of-cassia-abbreviata-stem-bark-on-diabetic-rats-and-possible-mechanism-of-its-action-anti-diabetic-properties-of-cassia-abbreviata
#13
Keagile Bati, Tebogo Elvis Kwape, Padmaja Chaturvedi
OBJECTIVES: This study aimed to evaluate the hypoglycemic effects of an ethanol extract of Cassia abbreviata (ECA) bark and the possible mechanisms of its action in diabetic albino rats. METHODS: ECA was prepared by soaking the powdered plant material in 70% ethanol. It was filtered and made solvent-free by evaporation on a rotary evaporator. Type 2 diabetes was induced in albino rats by injecting 35 mg/kg body weight (bw) of streptozotocin after having fed the rats a high-fat diet for 2 weeks...
March 2017: Journal of Pharmacopuncture
https://www.readbyqxmd.com/read/28390726/effects-of-preweaning-nutrient-intake-in-the-developing-mammary-parenchymal-tissue
#14
F Soberon, M E Van Amburgh
Historically, mammary gland growth has been considered isometric the first 2 mo of life and then allometric until peripuberty. However, recent work indicated that the mammary gland might be responsive to nutrient intake preweaning. The objectives of this study were to describe the effects of nutrient intake preweaning on mammary gland development and to investigate cell specific proliferation during this phase of development. Twelve dairy heifer calves were fed either a fixed amount of milk replacer (MR; control, n = 6) or an amount of MR adjusted for BW (enhanced, n = 6)...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28390099/subcutaneous%C3%A2-injection-of-h2-is-a-novel-effective-treatment-for-type-2-diabetes
#15
Xiaolong Zhang, Jiaming Liu, Keke Jin, Haifeng Xu, Chuang Wang, Zhuang Zhang, Mimi Kong, Zhengzheng Zhang, Qingyi Wang, Fangyan Wang
AIMS/INTRODUCTION: In previous studies H2 administration has clearly shown effectiveness in inhibiting diabetes. Here, we evaluated whether subcutaneous injection of H2 shows enhanced efficacy against type 2 diabetes mellitus (T2DM) induced in mice by a high-fat diet and low dose streptozotocin (STZ) treatment. MATERIAL AND METHODS: H2 was injected subcutaneously at a dose of 1ml/mouse/week for four weeks. T2DM associated parameters were then evaluated to determine the effectiveness of subcutaneous H2 administration...
April 8, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28381582/effect-of-temperature-and-food-restriction-on-immune-function-in-striped-hamsters-cricetulus-barabensis
#16
De-Li Xu, Xiao-Kai Hu, Yu-Fen Tian
Small mammals in the temperate area face seasonal fluctuations of temperature and food availability, both of which may influence their immune responses being critical to the survival. In the present study, we tested the hypothesis that low temperature and food restriction would suppress immune function in striped hamsters (Cricetulus barabensis). Thirty-seven adult male hamsters were randomly assigned into the warm (23±1°C) and the cold (5±1°C) groups, which were further divided into the fed and the food restricted groups, respectively...
April 5, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28374574/a-comparative-assessment-of-adipose-derived-stem-cells-from-subcutaneous-and-visceral-fat-as-a-potential-cell-source-for-knee-osteoarthritis-treatment
#17
Yan Tang, Zhang-Yi Pan, Ying Zou, Yi He, Peng-Yuan Yang, Qi-Qun Tang, Feng Yin
The intra-articular injection of adipose-derived stem cells (ASCs) is a novel potential therapy for patients with osteoarthritis (OA). However, the efficacy of ASCs from different regions of the body remains unknown. This study investigated whether ASCs from subcutaneous or visceral adipose tissue provide the same improvement of OA. Mouse and human subcutaneous and visceral adipose tissue were excised for ASC isolation. Morphology, proliferation, surface markers and adipocyte differentiation of subcutaneous ASCs (S-ASCs) and visceral ASCs (V-ASCs) were analysed...
April 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28370068/dose-response-effects-of-sex-hormone-concentrations-on-body-composition-and-adipokines-in-medically-castrated-healthy-men-administered-graded-doses-of-testosterone-gel
#18
Arthi Thirumalai, Katya B Rubinow, Lori A Cooper, John K Amory, Brett T Marck, Alvin M Matsumoto, Stephanie T Page
OBJECTIVE: Serum sex steroid concentrations may alter body composition and glucose homeostasis in men in a dose-response manner. We evaluated these endpoints in healthy men rendered medically castrate through use of a gonadotropin-releasing hormone antagonist (acyline) with incremental doses of exogenous testosterone (T) gel. DESIGN: Subjects (n=6-9 per group) were randomly assigned to injections of acyline every 2 weeks plus transdermal T gel (1.25 g, 2.5 g, 5...
March 30, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28369293/report-on-mortality-from-gluteal-fat-grafting-recommendations-from-the-aserf-task-force
#19
M Mark Mofid, Steven Teitelbaum, Daniel Suissa, Arturo Ramirez-Montañana, Denis C Astarita, Constantino Mendieta, Robert Singer
Background: Gluteal fat grafting is among the fastest growing aesthetic procedures in the United States and around the world. Given numerous anecdotal and published reports of fatal and nonfatal pulmonary fat embolism resulting from this procedure, the Aesthetic Surgery Education and Research Foundation (ASERF) formed a Task Force to study this complication. Objectives: To determine the incidence of fatal and nonfatal pulmonary fat embolism associated with gluteal fat grafting and provide recommendations to decrease the risks of the procedure...
March 21, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28369019/in-vivo-effects-of-retrobulbar-bimatoprost-injection-on-orbital-fat
#20
Kian Eftekhari, M Reza Vagefi, Vivian Lee, James Z Hui, Menglong Zhu, Kimberly Dine, Richard L Anderson, Brigitte Koeberlein, Reas Sulaimankutty, Kenneth S Shindler
PURPOSE: Recent publications have reported the adverse effects of prostaglandin analogues on the periocular tissues. These medications may cause periorbital lipodystrophy, enophthalmos, and deepening of the superior sulcus deformity. While these effects may have adverse consequences for some patients, the atrophy of the periorbital fat may have a useful role in diseases that lead to orbital and periorbital fat hypertrophy such as thyroid eye disease. In this pilot study, the authors investigated the effects of retrobulbar bimatoprost injection on the intraocular pressure and orbital fat in a rat animal model...
March 31, 2017: Ophthalmic Plastic and Reconstructive Surgery
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