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https://www.readbyqxmd.com/read/28827681/sirt1-reduction-is-associated-with-sex-specific-dysregulation-of-renal-lipid-metabolism-and-stress-responses-in-offspring-by-maternal-high-fat-diet
#1
Long The Nguyen, Hui Chen, Carol Pollock, Sonia Saad
Rodent models of maternal obesity have been associated with kidney damage and dysfunction in offspring. However, the underlying mechanisms are yet to be elucidated. In this study, female rats were fed a high-fat diet (HFD) for 6 weeks prior to mating, throughout gestation and lactation; both male and female offspring were examined at weaning. Our results demonstrate that renal lipid deposition was increased in male offspring only, which is associated with reduced protein expression of Sirtuin (SIRT) 1, an essential regulator of lipid metabolism and stress response...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28822960/loss-of-perilipin-2-in-cultured-myotubes-enhances-lipolysis-and-redirects-the-metabolic-energy-balance-from-glucose-oxidation-towards-fatty-acid-oxidation
#2
Yuan Z Feng, Jenny Lund, Yuchuan Li, Irlin K Knabenes, Siril S Bakke, Eili Tranheim Kase, Yun K Lee, Alan R Kimmel, G Hege Thoresen, Arild Christian Rustan, Knut Tomas Dalen
Lipid droplet (LD) coating proteins are essential for the formation and stability of intracellular LDs. Plin2 is an abundant LD coating protein in skeletal muscle, but its importance for muscle function is unclear. We show that myotubes established from Plin2-/- mice contain reduced content of LDs and accumulate less oleic acid in triacylglycerol (TAG), due to elevated LD hydrolysis compared to Plin2+/+ myotubes. The reduced ability to store TAG in LDs in Plin2-/- myotubes is accompanied by a shift in energy metabolism...
August 19, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28804442/mesozeaxanthin-protects-the-liver-and-reduces-cardio-metabolic-risk-factors-in-an-insulin-resistant-rodent-model
#3
Kazim Sahin, Cemal Orhan, Fatih Akdemir, Mehmet Tuzcu, Nurhan Sahin, Ismet Yilmaz, Shakir Ali, Jayant Deshpande, Vijaya Juturu
Background: Mesozeaxanthin (MZ) is a macular carotenoid which has been reported to have a number of pharmacological properties, including the antioxidant, and anticarcinogenic property, and has been stated to decrease the hepatocyte lipid content. Objective: In this study, we investigated the effect of MZ on cardio-metabolic health risk (CMHR) and its probable mechanisms of action in rats fed a high-fat diet (HFD). Design: Rats were randomly divided into four groups consisting of (i) Control, (ii) MZ, (iii) HFD, and (iv) HFD+MZ...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28799756/caffeic-acid-phenethyl-ester-propolis-extract-ameliorates-insulin-resistance-by-inhibiting-jnk-and-nf-%C3%AE%C2%BAb-inflammatory-pathways-in-diabetic-mice-and-hepg2-cells-models
#4
Jia-Rui Nie, Ya-Ning Chang, Yujia Li, Yingjun Zhou, Jiawen Qin, Zhen Sun, Haibin Li
Caffeic acid phenethyl ester (CAPE), extracted from propolis, was evaluated the ameliorative effects on insulin resistance and identified the mechanisms, using noninsulin-dependent diabetes mellitus (NIDDM) model mice and insulin resistance (IR) model cells. After 5-week of CAPE supplementation, insulin sensitivity, hyperlipidemia, and peroxisome proliferator-activated receptor-α (PPAR-α) levels were improved in mice. Pro-inflammatory cytokines in serum and the expressions of tumour necrosis factor- alpha (TNF-α) mRNA in tissues were markedly down-regulated from CAPE-treated mice...
August 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28771799/modulation-of-nfkb1-p50-by-ros-leads-to-impaired-atp-production-during-mi-compared-to-cardiac-hypertrophy
#5
Arkadeep Mitra, Ritwik Datta, Santanu Rana, Sagartirtha Sarkar
Pathological hypertrophy and myocardial infarction (MI) are two etiologically different cardiac disorders having differential molecular mechanisms of disease manifestation. However, no study has been conducted so far to analyze and compare the differential status of energy metabolism in these two disease forms. It was shown recently by our group that production of ATP is significantly impaired during MI along with inhibition of pyruvate dehydrogenase E1-β (PDHE1 B) by pyruvate dehydrogenase kinase 4 (PDK4)...
August 3, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28760335/microrna-21-regulates-peroxisome-proliferator-activated-receptor-alpha-a-molecular-mechanism-of-cardiac-pathology-in-cardiorenal-syndrome-type-4
#6
Sandra Chuppa, Mingyu Liang, Pengyuan Liu, Yong Liu, Marc C Casati, Allen W Cowley, Leah Patullo, Alison J Kriegel
Cardiovascular events are the leading cause of death in patients with chronic kidney disease (CKD), although the pathological mechanisms are poorly understood. Here we longitudinally characterized left ventricle pathology in a 5/6 nephrectomy rat model of CKD and identify novel molecular mediators. Next-generation sequencing of left ventricle mRNA and microRNA (miRNA) was performed at physiologically distinct points in disease progression, identifying alterations in genes in numerous immune, lipid metabolism, and inflammatory pathways, as well as several miRNAs...
July 28, 2017: Kidney International
https://www.readbyqxmd.com/read/28711683/anti-obesogenic-effects-of-wy14643-ppar-alpha-agonist-hepatic-mitochondrial-enhancement-and-suppressed-lipogenic-pathway-in-diet-induced-obese-mice
#7
Flavia Maria Silva Veiga, Francielle Graus-Nunes, Tamiris Lima Rachid, Aline Barcellos Barreto, Carlos Alberto Mandarim-de-Lacerda, Vanessa Souza-Mello
Non-alcoholic fatty liver disease (NAFLD) presents with growing prevalence worldwide, though its pharmacological treatment remains to be established. This study aimed to evaluate the effects of a PPAR-alpha agonist on liver tissue structure, ultrastructure, and metabolism, focusing on gene and protein expression of de novo lipogenesis and gluconeogenesis pathways, in diet-induced obese mice. Male C57BL/6 mice (three months old) received a control diet (C, 10% of lipids, n = 10) or a high-fat diet (HFD, 50% of lipids, n = 10) for ten weeks...
September 2017: Biochimie
https://www.readbyqxmd.com/read/28694661/relevance-of-proteolysis-and-proteasome-activation-in-fatty-liver-graft-preservation-an-institut-georges-lopez-1-vs-university-of-wisconsin-appraisal
#8
Mohamed Amine Zaouali, Arnau Panisello-Roselló, Alexandre Lopez, Carlos Castro Benítez, Emma Folch-Puy, Agustín García-Gil, Teresa Carbonell, René Adam, Joan Roselló-Catafau
AIM: To compare liver proteolysis and proteasome activation in steatotic liver grafts conserved in University of Wisconsin (UW) and Institut Georges Lopez-1 (IGL-1) solutions. METHODS: Fatty liver grafts from male obese Zücker rats were conserved in UW and IGL-1 solutions for 24 h at 4 °Cand subjected to "ex vivo" normo-thermic perfusion (2 h; 37 °C). Liver proteolysis in tissue specimens and perfusate was measured by reverse-phase high performance liquid chromatography...
June 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28669518/impact-of-interaction-between-ppar-alpha-and-ppar-gamma-on-breast-cancer-risk-in-the-chinese-han-population
#9
Xiong Lianggeng, Liang Baiwu, Bai Maoshu, Liu Jiming, Li Youshan
BACKGROUND: Several studies have been conducted to investigate the association of the peroxisome proliferator-activated receptor (PPAR) alpha (PPAR A) and PPAR gamma (PPAR G) polymorphism and breast cancer (BC) risk, but the results were inconsistent, and, until now, no study focused on the impact of gene-gene interactions between PPAR A and PPAR G on BC risk; thus, the aim of this study was to investigate the impact of interaction between PPAR A and PPAR G on BC risk in the Chinese Han population...
October 19, 2016: Clinical Breast Cancer
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
#10
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/28614912/peroxisome-proliferator-activated-receptor-%C3%AE-facilitates-osteogenic-differentiation-in-mc3t3-e1-cells-via-the-sirtuin-1-dependent-signaling-pathway
#11
Kai Gong, Bo Qu, Cairu Wang, Jingsong Zhou, Dongfa Liao, Wei Zheng, Xianming Pan
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease characterized by lack of insulin and high glucose levels. T2DM can cause bone loss and fracture, thus leading to diabetic osteoporosis. Promoting osteogenic differentiation of osteoblasts may effectively treat diabetic osteoporosis. We previously reported that Sirtuin 1 (Sirt1), a NAD(+)-dependent deacetylase, promotes osteogenic differentiation through downregulation of peroxisome proliferator-activated receptor (PPAR) γ. We also found that miR-132 regulates osteogenic differentiation by downregulating Sirt1 in a PPARβ/δ-dependent manner...
June 30, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28609844/an-overview-on-immunoregulatory-and-anti-inflammatory-properties-of-chrysin-and-flavonoids-substances
#12
REVIEW
Majid Zeinali, Seyed Abdolrahim Rezaee, Hossein Hosseinzadeh
Inflammation and the pro-inflammatory cytokines are associated with numerous chronic diseases. Studies suggest that flavonoids, plant polyphenolic compound derivatives from natural origin, have a wide range of putative biological activities. Similar to other flavonoids, chrysin (CH) by its anti-oxidative and anti-inflammatory effects is a potential prophylactic agent in immunopathological and physicochemical injuries. This is an overview on putative immunomodulatory activities of flavonoids and beneficial health effects of these substances particularly, CH in the immune system...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28606623/the-interaction-between-alpha-7-nicotinic-acetylcholine-receptor-and-nuclear-peroxisome-proliferator-activated-receptor-%C3%AE-represents-a-new-antinociceptive-signaling-pathway-in-mice
#13
Giulia Donvito, Deniz Bagdas, Wisam Toma, Elnaz Rahimpour, Asti Jackson, Julie A Meade, Shakir AlSharari, Abhijit R Kulkarni, F Ivy Carroll, Aron H Lichtman, Roger L Papke, Ganesh A Thakur, M Imad Damaj
Recently, α7 nicotinic acetylcholine receptors (nAChRs), primarily activated by binding of orthosteric agonists, represent a target for anti-inflammatory and analgesic drug development. These receptors may also be modulated by positive allosteric modulators (PAMs), ago-allosteric ligands (ago-PAMs), and α7-silent agonists. Activation of α7 nAChRs has been reported to increase the brain levels of endogenous ligands for nuclear peroxisome proliferator-activated receptors type-α (PPAR-α), palmitoylethanolamide (PEA) and oleoylethanolamide (OEA), in a Ca(2+)-dependent manner...
September 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28598969/cucurbitacin-e-reduces-obesity-and-related-metabolic-dysfunction-in-mice-by-targeting-jak-stat5-signaling-pathway
#14
Munazza Murtaza, Gulnaz Khan, Meha Fatima Aftab, Shabbir Khan Afridi, Safina Ghaffar, Ayaz Ahmed, Rahman M Hafizur, Rizwana Sanaullah Waraich
Several members of cucurbitaceae family have been reported to regulate growth of cancer by interfering with STAT3 signaling. In the present study, we investigated the unique role and molecular mechanism of cucurbitacins (Cucs) in reducing symptoms of metabolic syndrome in mice. Cucurbitacin E (CuE) was found to reduce adipogenesis in murine adipocytes. CuE treatment diminished hypertrophy of adipocytes, visceral obesity and lipogenesis gene expression in diet induced mice model of metabolic syndrome (MetS)...
2017: PloS One
https://www.readbyqxmd.com/read/28585194/circadian-rhythms-in-diet-induced-obesity
#15
Atilla Engin
The biological clocks of the circadian timing system coordinate cellular and physiological processes and synchronizes these with daily cycles, feeding patterns also regulates circadian clocks. The clock genes and adipocytokines show circadian rhythmicity. Dysfunction of these genes are involved in the alteration of these adipokines during the development of obesity. Food availability promotes the stimuli associated with food intake which is a circadian oscillator outside of the suprachiasmatic nucleus (SCN)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28577437/rutin-exhibits-hepatoprotective-effects-in-a-mouse-model-of-non-alcoholic-fatty-liver-disease-by-reducing-hepatic-lipid-levels-and-mitigating-lipid-induced-oxidative-injuries
#16
Qingsheng Liu, Ran Pan, Lei Ding, Fuli Zhang, Linfeng Hu, Bin Ding, Linwensi Zhu, Yongliang Xia, Xiaobing Dou
Nonalcoholic fatty liver disease (NAFLD) is characterized by excessive accumulation of hepatic lipids and oxidative injury of hepatocytes. Rutin is a natural flavonoid with significant roles in combating cellular oxidative stress and regulating lipid metabolism. The current study aims to investigate the molecular mechanisms underlying rutin's hypolipidemic and hepatoprotective effects in nonalcoholic fatty liver disease. Rutin treatment was applied to male C57BL/6 mice maintained on a high-fat diet and HepG2 cells challenged with oleic acid...
August 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28572074/characterization-of-variability-in-toxicokinetics-and-toxicodynamics-of-tetrachloroethylene-using-the-collaborative-cross-mouse-population
#17
Joseph A Cichocki, Shinji Furuya, Abhishek Venkatratnam, Thomas J McDonald, Anthony H Knap, Terry Wade, Stephen Sweet, Weihsueh A Chiu, David W Threadgill, Ivan Rusyn
BACKGROUND: Evaluation of interindividual variability is a challenging step in risk assessment. For most environmental pollutants, including perchloroethylene (PERC), experimental data are lacking, resulting in default assumptions being used to account for variability in toxicokinetics and toxicodynamics. OBJECTIVE: We quantitatively examined the relationship between PERC toxicokinetics and toxicodynamics at the population level to test whether individuals with increased oxidative metabolism are be more sensitive to hepatotoxicity following PERC exposure...
May 30, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28569254/maternal-high-fat-diet-during-pregnancy-and-lactation-affects-hepatic-lipid-metabolism-in-early-life-of-offspring-rat
#18
Yanhong Huang, Tingting Ye, Chongxiao Liu, Fang Fang, Yuanwen Chen, Yan Dong
We investigated whether maternal over-nutrition during pregnancy and lactation affects the offspring's lipid metabolism at weaning by assessing liver lipid metabolic gene expressions and analysing its mechanisms on the development of metabolic abnormalities. Female Sprague-Dawley rats were fed with standard chow diet (CON) or high-fat diet (HFD) for 8 weeks, and then continued feeding during gestation and lactation. The offspring whose dams were fed with HFD had a lower birth weight but an increased body weight with impaired glucose tolerance, higher serum cholesterol, and hepatic steatosis at weaning...
June 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28539716/prevention-mechanism-of-2-3-5-4-tetrahydroxy-stilbene-2-o-%C3%AE-d-glucoside-on-lipid-accumulation-in-steatosis-hepatic-l-02-cell
#19
Pei Lin, Jian-Mei Lu, Yan-Fang Wang, Wen Gu, Rong-Hua Zhao, Jie Yu
AIM: 2,3,5,4'-Tetrahydroxy-stilbene-2-O-β-d-glucoside (TSG), a natural stilbene, shows great activities in hepatic lipid regulation, especially for hepatic triglyceride lowering. However, information about its mechanisms on biosynthesis and degradation of triglyceride is still limited. This research pays close attention to clarify the mechanism of TSG on prevention of hepatic lipid accumulation. MATERIALS AND METHODS: TSG was given to steatosis hepatocyte L-02 cell induced by fat emulsion incubation...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28534168/father-s-obesity-programs-the-adipose-tissue-in-the-offspring-via-the-local-renin-angiotensin-system-and-mapks-pathways-especially-in-adult-male-mice
#20
Fernanda Ornellas, Isabele Bringhenti, Brenda Akemi N F Mattos, Carlos Alberto Mandarim-de-Lacerda, Marcia Barbosa Aguila
PURPOSE: Studies demonstrated the influence of mother's obesity on offspring. However, the father is also related to programming the future generation. The study aimed to evaluate the effects of father's obesity upon white adipose tissue (WAT) remodeling, resulting in activation of signaling pathways and inflammation in male and female offspring. METHODS: Male C57BL/6 mice received control diet (lean father group; 17% energy from lipids) or high-fat diet (obese father group; 49% energy from lipids) for 8 weeks before mating...
May 22, 2017: European Journal of Nutrition
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