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https://www.readbyqxmd.com/read/28739725/high-efficient-screening-method-for-identification-of-key-genes-in-breast-cancer-through-microarray-and-bioinformatics
#1
Zihao Liu, Gehao Liang, Luyuan Tan, A N Su, Wenguo Jiang, Chang Gong
BACKGROUND/AIM: The aim of the present study was to identify key pathways and genes in breast cancer and develop a new method for screening key genes with abnormal expression based on bioinformatics. MATERIALS AND METHODS: Three microarray datasets GSE21422, GSE42568 and GSE45827 were downloaded from the Gene Expression Omnibus (GEO) database and differentially expressed genes (DEGs) were analyzed using GEO2R. The gene ontology (GO) and pathway enrichment analysis were established through DAVID database...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739257/lack-of-epithelial-ppar%C3%AE-causes-cystic-adenomatoid-malformations-in-mouse-fetal-lung
#2
Jung-Hwan Kim, Satoshi Yamaori, Tomotaka Tanabe, Mitsuhiro Takagi, Tsutomu Matsubara, Minoru Okamoto, Shioko Kimura, Frank J Gonzalez
Peroxisome proliferator-activated receptor-γ (PPARγ) plays an important role in lipid and glucose metabolism. In this study, the function of PPARγ on lung development was investigated. Lung-specific Pparg conditional knockout mice (Pparg(ΔLuEpC)) were developed using Cre-Lox system. Pparg(ΔLuEpC) mice showed abnormal lung development with enlarged airspaces and followed by increase of apoptotic cells at E14.5 to E18.5. Gene analysis revealed that expression of Pmaip1, a gene related to apoptosis, was significantly increased while expression of Retnla, a gene related to anti-apoptosis, was dramatically decreased in the fetal lung (E14...
July 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28733963/peroxisome-proliferator-activated-receptor-gamma-expression-in-peripheral-blood-mononuclear-cells-and-angiopoietin-like-protein-4-levels-in-obese-children-and-adolescents
#3
Z A Sadeghabadi, M Nourbakhsh, M Alaee, B Larijani, M Razzaghy-Azar
PURPOSE: The peroxisome proliferator-activated receptor γ (PPARγ) is highly expressed in adipose tissue and functions as transcriptional regulator of metabolism and adipocyte differentiation. Angiopoietin-like protein 4 (ANGPTL4), a central player in various aspects of energy homoeostasis, is induced by PPARγ. The aim of this study was to evaluate ANGPTL4 plasma levels and PPARγ gene expression in peripheral blood mononuclear cells (PBMCs) of children and adolescents with obesity and their association with metabolic parameters...
July 21, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28733645/hdac3-is-a-molecular-brake-of-the-metabolic-switch-supporting-white-adipose-tissue-browning
#4
Alessandra Ferrari, Raffaella Longo, Erika Fiorino, Rui Silva, Nico Mitro, Gaia Cermenati, Federica Gilardi, Béatrice Desvergne, Annapaola Andolfo, Cinzia Magagnotti, Donatella Caruso, Emma De Fabiani, Scott W Hiebert, Maurizio Crestani
White adipose tissue (WAT) can undergo a phenotypic switch, known as browning, in response to environmental stimuli such as cold. Post-translational modifications of histones have been shown to regulate cellular energy metabolism, but their role in white adipose tissue physiology remains incompletely understood. Here we show that histone deacetylase 3 (HDAC3) regulates WAT metabolism and function. Selective ablation of Hdac3 in fat switches the metabolic signature of WAT by activating a futile cycle of de novo fatty acid synthesis and β-oxidation that potentiates WAT oxidative capacity and ultimately supports browning...
July 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28730964/ccl2-is-modulated-by-cytokines-and-ppar-g-in-anaplastic-thyroid-cancer
#5
Silvia Martina Ferrari, Giusy Elia, Simona Piaggi, Enke Baldini, Salvatore Ulisse, Mario Miccoli, Gabriele Materazzi, Alessandro Antonelli, Poupak Fallahi
BACKGROUND AND OBJECTIVE: Chemokine (C-C motif) ligand (CCL)2, the prototype Th2 chemokine, is secreted by tumor cells, and has growth promoting effects. Whether CCL2 protumorigenic activities will be validated, then CCL2 and its receptor CCR2 may be therapeutic targets in cancer. METHODS: We tested in "primary human anaplastic thyroid carcinoma (ATC) cells" (ANA) versus "normal thyroid follicular cells" (TFC): a) CCL2 secretion basally, after IFN-g and/or TNF-a stimulation; b) PPARg activation by thiazolidinediones (TZDs), rosiglitazone or pioglitazone, on CCL2 secretion, and on proliferation and apoptosis in ANA...
July 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28727849/associations-between-pparg-polymorphisms-and-the-risk-of-essential-hypertension
#6
Gaojun Cai, Xinyong Zhang, Weijin Weng, Ganwei Shi, Sheliang Xue, Bifeng Zhang
BACKGROUND: Peroxisome proliferator-activated receptor gamma (PPARG) plays an important role in the pathogenesis and maintenance of essential hypertension (EH). It has been suggested that polymorphisms of PPARG are associated with the risk of EH. However, findings to date remain controversial. To elucidate the associations between the PPARG Pro12Ala and C161T polymorphisms and EH risk, a meta-analysis was carried out. METHODS: A comprehensive literature search of PubMed, Embase, CNKI (Chinese National Knowledge Infrastructure), VIP and Wanfang databases was conducted...
2017: PloS One
https://www.readbyqxmd.com/read/28727095/bta-mir-130a-regulates-the-biosynthesis-of-bovine-milk-fat-by-targeting-peroxisome-proliferator-activated-receptor-gamma
#7
W C Yang, W L Guo, L S Zan, Y N Wang, K Q Tang
Milk fat determines the quality of milk and is also a main targeted trait in dairy cow breeding. Recent studies have revealed important regulatory roles of microRNAs (miRNA) in milk fat synthesis in the mammary gland. However, the role of miRNA in bovine mammary epithelial cells (BMEC) remains largely unknown. In this study, we found that the overexpression of miR-130a significantly decreased cellular triacylglycerol (TAG) levels and suppressed lipid droplet formation, whereas the inhibition of miR-130a resulted in greater lipid droplet formation and TAG accumulation in BMEC...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28718514/aldehyde-dehydrogenase-1-a1-regulates-energy-metabolism-in-adipocytes-from-different-species
#8
Kefeng Yang, Christopher Adin, Qiwen Shen, Ly James Lee, Lianbo Yu, Paolo Fadda, Arpad Samogyi, Kathleen Ham, Lu Xu, Chen Gilor, Ouliana Ziouzenkova
BACKGROUND: Survival and longevity of xenotransplants depend on immune function and ability to integrate energy metabolism between cells from different species. However, mechanisms for interspecies cross talk in energy metabolism are not well understood. White adipose tissue stores energy and is capable of mobilization and dissipation of energy as heat (thermogenesis) by adipocytes expressing uncoupling protein 1 (Ucp1). Both pathways are under the control of vitamin A metabolizing enzymes...
July 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28708516/peroxisome-proliferator-activated-receptor-ppar-isoforms-are-differentially-expressed-in-peri-implantation-porcine-conceptuses
#9
Agnieszka Blitek, Magdalena Szymanska
Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptor family of ligand-dependent transcription factors. PPARs are critical regulators of glucose homeostasis and lipid metabolism, and affect cell proliferation and differentiation. In the current study, we examined (1) the profiles of PPARA, PPARD, and PPARG mRNA expression and DNA binding activity in porcine conceptuses collected on Days 10-11 (spherical and tubular conceptuses), 11-12 (filamentous conceptuses), 13-14, and 15-16 (elongated conceptuses) of pregnancy, (2) the presence of PPARA, PPARD, and PPARG proteins in Days 10, 12, and 15 conceptuses...
June 13, 2017: Theriogenology
https://www.readbyqxmd.com/read/28700354/docking-of-cdk1-with-antibiotic-drugs-revealed-novel-therapeutic-value-in-breast-ductal-cancer-in-situ
#10
Zhong-Hai Ding, Jia Qi, An-Quan Shang, Yu-Jie Zhang, Jun Wei, Li-Qing Hu, Wei-Wei Wang, Man Yang
The aim of our research is to identify potential genes associated with Ductal carcinoma in situ (DCIS) through microarrays. The microarray dataset GS54665 were downloaded from the GEO(Gene Expression Omnibus) database. Dysregulated genes were screened and their associations with DCIS was analyzed by comprehensive bioinformatics tools. A total of 649 differential expression genes were identified between normal and DCIS samples, including 224 up-regulated genes and 425 down-regulated genes. Biological process annotation and pathway enrichment analysis identified several DCIS-related signaling pathways...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28699988/type-2-diabetes-associated-genetic-variants-of-fto-lepr-pparg-and-tcf7l2-in-gestational-diabetes-in-a-brazilian-population
#11
Mauren Isfer Anghebem-Oliveira, Bruna Rodrigues Martins, Dayane Alberton, Edneia Amancio de Souza Ramos, Geraldo Picheth, Fabiane Gomes de Moraes Rego
Objective: Gestational diabetes mellitus (GDM) is a metabolic disorder that shares pathophysiologic features with type 2 diabetes mellitus. The aim of this study was to investigate the association of the polymorphisms fat mass and obesity-associated (FTO) rs1421085, leptin receptor (LEPR) rs1137100, rs1137101, peroxisome proliferator-activated receptor gamma (PPARg) rs1801282, and transcription factor 7-like 2 (TCF7L2) rs7901695 with GDM. Subjects and methods: 252 unrelated Euro-Brazilian pregnant women were classified into two groups according to the 2015 criteria of the American and Brazilian Diabetes Association: healthy pregnant women (n = 125) and pregnant women with GDM (n = 127), matched by age...
May 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28698741/association-of-the-pro12ala-polymorphism-with-the-metabolic-parameters-in-women-with-polycystic-ovary-syndrome
#12
Moushira Zaki, Naglaa Hassan, Hala T El-Bassyouni, Sanaa Kamal, Walaa Basha, Osama Azmy, Khalda Amr
AIM: To investigate the association of peroxisome proliferator-activated receptor gamma (PPARG) Pro12Ala polymorphism with polycystic ovary syndrome (PCOS) and its effect on the metabolic parameters in PCOS women. METHODS: The study used PCR to identify the presence of the PPARG Pro12Ala polymorphism in 100 PCOS women and 120 age-matched healthy women. All participants were subjected to anthropometry, biochemical and metabolic evaluation. RESULTS: Significant difference in the genotypes distributions of PPARG Pro12Ala polymorphism was observed among PCOS women and controls (p = 0...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28686204/metabolic-and-blood-pressure-effects-of-walnut-supplementation-in-a-mouse-model-of-the-metabolic-syndrome
#13
Nicola J A Scott, Leigh J Ellmers, Anna P Pilbrow, Lotte Thomsen, Arthur Mark Richards, Chris M Frampton, Vicky A Cameron
There is extensive evidence that walnut consumption is protective against cardiovascular disease and diabetes in the healthy population, but the beneficial effects of walnut consumption in individuals with the metabolic syndrome (MetS) remain uncertain. We compared a range of cardio-metabolic traits and related tissue gene expression associated with 21 weeks of dietary walnut supplementation in a mouse model of MetS (MetS-Tg) and wild-type (WT) mice (n = 10 per genotype per diet, equal males and females). Compared to standard diet, walnuts did not significantly alter food consumption or body weight trajectory of either MetS-Tg or WT mice...
July 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28684130/indoleamine-2-3-dioxygenase-and-iron-are-required-for-mycobacterium-leprae-survival
#14
Mayara Garcia de Mattos Barbosa, Rhana Berto da Silva Prata, Priscila Ribeiro Andrade, Helen Ferreira, Bruno Jorge de Andrade Silva, Jéssica Araújo da Paixão de Oliveira, Tayná Quintella Assis, Thiago Gomes de Toledo-Pinto, Ohanna Cavalcanti de Lima Bezerra, José Augusto da Costa Nery, Patricia Sammarco Rosa, Marcelo Torres Bozza, Flávio Alves Lara, Milton Ozório Moraes, Veronica Schmitz, Euzenir Nunes Sarno, Roberta Olmo Pinheiro
Our previous study has demonstrated that IL-10 may modulate both indoleamine 2,3-dioxygenase (IDO) and CD163 expression in lepromatous leprosy (LL) cells, favoring Mycobacterium leprae persistence through induction of regulatory pathways and iron storage. Here, we observed that in LL lesion cells there is an increase in the expression of proteins involved in iron metabolism such as hemoglobin (Hb), haptoglobin, heme oxygenase 1 and transferrin receptor 1 (TfR1) when compared to tuberculoid leprosy (BT) cells...
July 3, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28676524/in-utero-vitamin-d-deficiency-predisposes-offspring-to-long-term-adverse-adipose-tissue-effects
#15
Anthony Michael Belenchia, Sarah Ashley Johnson, Mark R Ellersieck, Cheryl Susan Rosenfeld, Catherine Ann Peterson
The fetal period represents an important window of susceptibility for later obesity and metabolic disease. Maternal Vitamin D deficiency (VDD) during pregnancy is a global concern that may have long-lasting consequences on offspring metabolic health. We sought to determine whether a VDD in utero environment affects fetal adipose tissue development and offspring metabolic disease predisposition in adulthood. Furthermore, we sought to explore the extent to which the VDD intrauterine environment interacts with genetic background or postnatal environment to influence metabolic health...
July 4, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28671040/high-expressions-of-bcl6-and-lewis-y-antigen-are-correlated-with-high-tumor-burden-and-poor-prognosis-in-epithelial-ovarian-cancer
#16
Liancheng Zhu, Huilin Feng, Shan Jin, Mingzi Tan, Song Gao, Huiyu Zhuang, Zhenhua Hu, Huimin Wang, Zuofei Song, Bei Lin
Aberrant regulation of BCL6 plays crucial oncogenic roles in various malignant tumors; howbeit, the function of BCL6 in tumorigenesis of ovarian cancer remains unclear. The aim of this study is to investigate the role of BCL6 in ovarian cancer. The methods of immunohistochemical staining, quantitative real-time polymerase chain reaction, immunocytochemical staining, and gene expression profile enrichment analysis were performed to identify the possible role of BCL6 in ovarian cancer. We observed that the expression of BCL6 was significantly higher in ovarian cancer tissues and correlated with higher tumor burden including advanced International Federation of Gynecology and Obstetrics stages, poor differentiation, Type II ovarian cancer, the presence of >1 cm residual tumor size, and appearance of recurrence or death (all p < 0...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28668834/effects-of-pulsed-electromagnetic-fields-on-breast-cancer-cell-line-mcf-7-using-absorption-spectroscopy
#17
Dominic Z Alcantara, Ian Jerry S Soliman, Romeric F Pobre, Raouf N G Naguib
We present an analysis of the effects of pulsed electromagnetic fields (PEMF) with 3.3 MHz carrier frequency and modulated by audio resonant frequencies on the MCF-7 breast cancer cell line in vitro using absorption spectroscopy. This involves a fluorescence dye called PrestoBlue™ Cell Viability Reagent and a spectrophotometry to test the viability of MCF-7 breast cancer cells under different PEMF treatment conditions in terms of the cell absorption values. The DNA molecule of the MCF-7 breast cancer cells has an electric dipole property that renders it sensitive and reactive to applied electromagnetic fields...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28665940/adiposity-and-adipogenic-gene-expression-in-four-different-muscles-in-beef-cattle
#18
Lara Martínez Del Pino, Ana Arana, Leopoldo Alfonso, José Antonio Mendizábal, Beatriz Soret
Anatomical site and divergent functionalities of muscles can be related to differences in IMF content, metabolism and adipogenic gene expression. Then, potential differences in different muscles in beef cattle were studied. As a second objective, the main sources of experimental variability associated to RT-qPCR results were analyzed following a nested design in order to implement appropriate experimental designs minimizing gene expression variability. To perform the study Longissimus thoracis (LT), Semitendinosus (SM), Masseter (MS), Sternomandibularis (ST) and subcutaneous adipose tissue (SAT) samples of Pirenaica young bulls (n = 4) were collected for IMF, collagen and protein quantification, analysis of adipocyte size distribution and gene expression (PPARG, CEBPA, FAPB4 and WNT10B)...
2017: PloS One
https://www.readbyqxmd.com/read/28659749/anti-adipogenic-effects-of-tropaeolum-majus-nasturtium-ethanol-extract-on-3t3-l1-cells
#19
Gi-Chang Kim, Jin-Sook Kim, Gyoung-Mi Kim, Song-Yi Choi
Background: Edible flowers, Tropaeolum majus has been used as a disinfectant and an antibiotic, and for wound healing, but the anti-obesity effects of this plant have not been reported previously Objective: We investigated the anti-adipogenic effects of T. majus ethanol extract (TME) on 3T3-L1 cells. Design: 3T3-L1 cells were differentiated in the presence of different concentrations of TME. Lipid accumulation levels were determined using Oil-Red O staining and a triglyceride content assay. Changes in the expression of proteins related to adipocyte differentiation in 3T3-L1 cells were determined by SDS-PAGE and western blotting...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28659720/the-genetics-of-papillary-microcarcinomas-of-the-thyroid-diagnostic-and-prognostic-implications
#20
REVIEW
Ana Cunha Rodrigues, Gustavo Penna, Elisabete Rodrigues, Patrícia Castro, Manuel Sobrinho-Simões, Paula Soares
Papillary microcarcinoma of the thyroid (mPTC) is defined by the WHO as a papillary thy-roid cancer measuring 10mm or less in diameter and it is nowadays a topic of intense debate among the members of the medical community due to its apparent "epidemic" rise. Although these tumors follow almost always an indolent clinical course and carry an excellent prognosis, it is known that a small sub-set may display a potentially aggressive behavior. Nevertheless, we still lack an accurate way of predict-ing those which will cause significant disease...
June 2017: Current Genomics
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