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https://www.readbyqxmd.com/read/28641778/clinical-presentations-metabolic-abnormalities-and-end-organ-complications-in-patients-with-familial-partial-lipodystrophy
#1
Baris Akinci, Huseyin Onay, Tevfik Demir, Şenay Savas-Erdeve, Ramazan Gen, Ilgin Yildirim Simsir, Fatma Ela Keskin, Mehmet Sercan Erturk, Ayse Kubat Uzum, Guzin Fidan Yaylali, Nilufer Kutbay Ozdemir, Tahir Atik, Samim Ozen, Banu Sarer Yurekli, Tugce Apaydin, Canan Altay, Gulcin Akinci, Leyla Demir, Abdurrahman Comlekci, Mustafa Secil, Elif Arioglu Oral
OBJECTIVE: Familial partial lipodystrophy (FPLD) is a rare genetic disorder characterized by partial lack of subcutaneous fat. METHODS: This multicenter prospective observational study included data from 56 subjects with FPLD (18 independent Turkish families). Thirty healthy controls were enrolled for comparison. RESULTS: Pathogenic variants of the LMNA gene were determined in nine families. Of those, typical exon 8 codon 482 pathogenic variants were identified in four families...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28621837/pediatric-follicular-thyroid-carcinoma-indolent-cancer-with-low-prevalence-of-ras-mutations-and-absence-of-pax8-pparg-fusion-in-a-japanese-population
#2
Huy Gia Vuong, Tetsuo Kondo, Naoki Oishi, Tadao Nakazawa, Kunio Mochizuki, Akira Miyauchi, Mitsuyoshi Hirokawa, Ryohei Katoh
BACKGROUND: Pediatric follicular thyroid carcinomas are uncommon and their clinicopathological features and molecular profiles are still unknown. In this present study, we aimed to investigate the clinicopathological aspects of a large series of follicular thyroid carcinomas (FTCs) in pediatric patients and to analyse the point mutations in codons 12, 13 and 61 of NRAS, HRAS and KRAS genes and the rearrangements of PAX8-PPARG. METHODS: A total of 41 pediatric FTCs less than 21 years of age were enrolled in the present study...
June 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28612612/-molecular-aspects-of-thyroid-tumors-with-emphasis-on-microrna-and-their-clinical-implications
#3
M Ludvíková, I Kholová, D Kalfeřt
BACKGROUND: Central to neoplastic transformation and tumor progression is alteration of the signaling pathways that control cell proliferation and apoptosis. The key mechanisms for this neoplastic process are genetic changes (mutations of cancer-related genes) and recently identified epigenetic changes that involve DNA methylation, chromatin remodeling (which has a profound effect on the control of gene expression), and noncoding, regulatory RNA (notably, microRNA - miRNA). MiRNAs control expression of their target gene post-transcriptionally...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28611394/identification-of-the-ectoenzyme-cd38-as-a-marker-of-committed-preadipocytes
#4
A Carrière, Y Jeanson, J-A Côté, C Dromard, A Galinier, S Menzel, C Barreau, S Dupuis-Coronas, E Arnaud, A Girousse, V Cuminetti, J Paupert, B Cousin, C Sengenes, F Koch-Nolte, A Tchernof, L Casteilla
BACKGROUND/OBJECTIVES: Characterization of the adipocyte cellular lineage is required for a better understanding of white adipose tissue homeostasis and expansion. While several studies have focused on the phenotype of the most immature adipocyte progenitors, very few tools exist to identify committed cells. In haematopoiesis, the CD38 ectoenzyme is largely used to delineate various stages of stem cell lineage commitment. We hypothesize that this marker could be used to identify committed preadipocytes...
June 14, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28604257/genetic-factors-related-with-early-onset-of-osteonecrosis-of-the-jaw-in-patients-with-multiple-myeloma-under-zoledronic-acid-therapy
#5
Efstathios Kastritis, Pelagia Melea, Tina Bagratuni, Ioannis Melakopoulos, Maria Gavriatopoulou, Maria Roussou, Magdalini Migkou, Evangelos Eleutherakis-Papaiakovou, Evangelos Terpos, Meletios A Dimopoulos
Specific genetic polymorphisms (SNPs) have been correlated with the development of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in small series. We screened 140 myeloma patients (36 patients with and 104 without BRONJ) for the presence of previously identified SNPs in PPARG and CYP2C8 genes. All the patients received exclusively zolendronic acid (ZA) therapy and were followed prospectively for BRONJ. SNPs in both genes were associated with a higher risk of development of early BRONJ, occurring within less than 2 years of ZA therapy (59% vs...
June 11, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28590037/epigenetic-effects-of-an-adenosine-derivative-in-a-wistar-rat-model-of-liver-cirrhosis
#6
Jesús Rafael Rodríguez-Aguilera, Carlos Guerrero-Hernández, Rosario Pérez-Molina, Carla Elizabeth Cadena-Del-Castillo, Rebeca Pérez-Cabeza de Vaca, Nuria Guerrero-Celis, Mariana Domínguez-López, Adrián Rafael Murillo-de-Ozores, Rodrigo Arzate-Mejía, Félix Recillas-Targa, Victoria Chagoya de Sánchez
The pathological characteristic of cirrhosis is scarring which results in a structurally distorted and dysfunctional liver. Previously, we demonstrated that Col1a1 and Pparg genes are deregulated in CCl4 -induced cirrhosis but their normal expression levels are recovered upon treatment with IFC-305, an adenosine derivative. We observed that adenosine was able to modulate S-adenosylmethionine-dependent trans-methylation reactions, and recently, we found that IFC-305 modulates HDAC3 expression. Here, we investigated whether epigenetic mechanisms, involving DNA methylation processes and histone acetylation, could explain the re-establishment of gene expression mediated by IFC-305 in cirrhosis...
June 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28588550/the-role-of-peroxisome-proliferator-activated-receptor-gamma-pparg-in-adipogenesis-applying-knowledge-from-the-fish-aquaculture-industry-to-biomedical-research
#7
REVIEW
Rebecca Wafer, Panna Tandon, James E N Minchin
The tropical freshwater zebrafish has recently emerged as a valuable model organism for the study of adipose tissue biology and obesity-related disease. The strengths of the zebrafish model system are its wealth of genetic mutants, transgenic tools, and amenability to high-resolution imaging of cell dynamics within live animals. However, zebrafish adipose research is at a nascent stage and many gaps exist in our understanding of zebrafish adipose physiology and metabolism. By contrast, adipose research within other, closely related, teleost species has a rich and extensive history, owing to the economic importance of these fish as a food source...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28587345/palmitoleate-inhibits-insulin-transcription-by-activating-the-erk1-2-pathway-in-rat-pancreatic-%C3%AE-cells
#8
Yumei Yang, Liangliang Gong
The aim of the present study was to evaluate the effects of palmitoleate on insulin secretion and insulin mRNA levels, and to investigate the transcriptional regulation of insulin. INS-1 rat insulinoma cells were treated with palmitoleate in the presence of high glucose, and the amount of secreted insulin was measured via radioimmunoassay. Reverse transcription-quantitative polymerase chain reaction was performed to evaluate the mRNA levels of insulin and pancreatic and duodenal homeobox 1 (PDX1) under palmitoleate treatment...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28577302/ip6k1-reduces-mesenchymal-stem-stromal-cell-fitness-and-potentiates-high-fat-diet-induced-skeletal-involution
#9
Siddaraju V Boregowda, Sarbani Ghoshal, Cori N Booker, Veena Krishnappa, Anutosh Chakraborty, Donald G Phinney
Mesenchymal stem/stromal cells (MSCs) are the predominant source of bone and adipose tissue in adult bone marrow and play a critical role in skeletal homeostasis. Age-induced changes in bone marrow favor adipogenesis over osteogenesis leading to skeletal involution and increased marrow adiposity so pathways that prevent MSC aging are potential therapeutic targets for treating age-related bone diseases. Here, we show that inositol hexakisphosphate kinase 1 (Ip6k1) deletion in mice increases MSC yields from marrow and enhances cell growth and survival ex vivo...
June 2, 2017: Stem Cells
https://www.readbyqxmd.com/read/28570579/global-transcriptome-profiling-identifies-klf15-and-slc25a10-as-modifiers-of-adipocytes-insulin-sensitivity-in-obese-women
#10
Agné Kulyté, Anna Ehrlund, Peter Arner, Ingrid Dahlman
Although the mechanisms linking obesity to insulin resistance (IR) and type 2 diabetes (T2D) are not entirely understood, it is likely that alterations of adipose tissue function are involved. The aim of this study was to identify new genes controlling insulin sensitivity in adipocytes from obese women with either insulin resistant (OIR) or sensitive (OIS) adipocytes. Insulin sensitivity was first determined by measuring lipogenesis in isolated adipocytes from abdominal subcutaneous white adipose tissue (WAT) in a large observational study...
2017: PloS One
https://www.readbyqxmd.com/read/28562645/characterization-of-single-cell-derived-cultures-of-periosteal-progenitor-cells-to-ensure-the-cell-quality-for-clinical-application
#11
Stefan Stich, Alexander Loch, Su-Jin Park, Thomas Häupl, Jochen Ringe, Michael Sittinger
For clinical applications of cells and tissue engineering products it is of importance to characterize the quality of the used cells in detail. Progenitor cells from the periosteum are already routinely applied in the clinics for the regeneration of the maxillary bone. Periosteal cells have, in addition to their potential to differentiate into bone, the ability to develop into cartilage and fat. However, the question arises whether all cells isolated from periosteal biopsies are able to differentiate into all three tissue types, or whether there are subpopulations...
2017: PloS One
https://www.readbyqxmd.com/read/28560603/micro-rna-130a-3p-regulates-gemcitabine%C3%A2-resistance-via-pparg-in-cholangiocarcinoma
#12
Kei Asukai, Koichi Kawamoto, Hidetoshi Eguchi, Masamitsu Konno, Ayumu Asai, Yoshifumi Iwagami, Daisaku Yamada, Tadafumi Asaoka, Takehiro Noda, Hiroshi Wada, Kunihito Gotoh, Naohiro Nishida, Taroh Satoh, Yuichiro Doki, Masaki Mori, Hideshi Ishii
BACKGROUND: The prognosis of cholangiocarcinoma (CCA) is so poor that its chemoresistance needs to be reduced. In this study, we focused on the microRNAs (miRNAs) associated with gemcitabine resistance of CCA and assessed the clinical significance of miRNAs and their target genes. METHODS: We performed miRNA microarray analysis for two CCA cell lines (CCLP-1 and MzChA-1) and their gemcitabine-resistant (GR) cells. An miR-130a-3p mimic was induced into CCA cells using lipofection, and we used pioglitazone as a peroxisome proliferator-activated receptor-γ (PPARγ) agonist in vitro...
May 30, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28560446/prediction-of-marker-genes-associated-with-hypertension-by-bioinformatics-analyses
#13
Yuan Gao, Guo-Xian Qi, Zhi-Mei Jia, Ying-Xian Sun
This study aimed to explore the underlying marker genes associated with hypertension by bioinformatics analyses. A gene expression profile (GSE54015) was downloaded. The differentially expressed genes (DEGs) between the normotensive female (NF) and hypertensive female (HF), and between the normotensive male (NM) and hypertensive male (HM) groups were analyzed. Gene Ontology (GO) and pathway enrichment analyses were performed, followed by protein-protein interaction (PPI) network construction. The transcription factors (TFs), and the common DEGs between the HF and HM groups were then analyzed...
May 25, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28549605/wnt3a-and-the-induction-of-the-osteogenic-differentiation-in-adipose-tissue-derived-mesenchymal-stem-cells
#14
C Morsczeck, A Reck, T E Reichert
Adipose tissue derived stem cells (ASCs) can easily be isolated, but the osteogenic differentiation potential is limited. To improve this differentiation potential, more investigations are required about signaling proteins for the induction of the osteogenic differentiation. This study focused on the WNT3A protein, because little is known about the canonical WNT signaling pathway and the osteogenic differentiation of ASCs. The alkaline phosphatase (ALP) activity was measured for the evaluation of the osteogenic differentiation...
May 12, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28539839/ppard-is-an-inhibitor-of-cartilage-growth-in-external-ears
#15
Zhen Zhang, Yanyu Duan, Zhongping Wu, Hui Zhang, Jun Ren, Lusheng Huang
Peroxisome proliferator-activated receptor beta/delta (PPARD) is an important determinant of multiple biological processes. Our previous studies identified a missense mutation in the PPARD gene that significantly reduces its transcription activity, and consequently causes enlarged external ears in pigs. However, the mechanisms underlying the causality has remained largely unknown. Here, we show that PPARD retards the development of auricular cartilage by accelerating the apoptosis of cartilage stem/progenitor cells (CSPCs), the terminal differentiation of cartilage cells and the degradation of cartilage extracellular matrix in the auricle...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28527797/mir-26b-promoter-analysis-reveals-regulatory-mechanisms-by-lipid-related-transcription-factors-in-goat-mammary-epithelial-cells
#16
Hui Wang, Jun Luo, Qiuya He, Dawei Yao, Jiao Wu, Juan J Loor
MicroRNA (miRNA) regulate protein abundance and control diverse aspects of cellular processes and biological functions associated with lipid metabolism. MiR-26b and its host gene CTDSP1 regulate triacylglycerol synthesis by synergistically suppressing the insulin-induced gene 1 (INSIG1); however, the direct regulators of miR-26b expression remain unknown. In the present study, we characterized the activity of a novel putative promoter region in miR-26b. Results revealed that promoter activity and miR-26b expression are dynamically regulated by different transcription factors including peroxisome proliferator-activated receptor gamma (PPARG), sterol regulatory element binding transcription factor 1 (SREBF1), and liver X receptor α (LXRα)...
July 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28513320/crispr-cas9-based-pten-knock-out-and-sleeping-beauty-transposon-mediated-nras-knock-in-induces-hepatocellular-carcinoma-and-hepatic-lipid-accumulation-in-mice
#17
Mingming Gao, Dexi Liu
Both Pten and Nras are downstream mediators of receptor tyrosine kinase activation that plays important roles in controlling cell survival and proliferation. Here, we investigated whether and how Pten loss cross-talks with Nras activation in driving liver cancer development in mice. Somatic disruption of hepatic Pten and overexpression of Nras were achieved in out-bred immunocompetent CD-1 mice through a hydrodynamic delivery of plasmids carrying Sleeping Beauty transposon-based integration of Nras and the CRISPR/Cas9-mediated Pten knock-out system...
May 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28504924/mrna-expression-of-nuclear-factor-of-activated-t-cells-cytoplasmic-2-nfatc2-and-peroxisome-proliferator-activated-receptor-gamma-pparg-transcription-factors-in-colorectal-carcinoma
#18
Venus Zafari, Shahryar Hashemzadeh, Mohammadali Hosseinpour Feizi, Nasser Pouladi, Leila Rostami Zadeh, Ebrahim Sakhinia
Transcription factors are involved in cell cycle and apoptosis regulation and thus have a key role in the carcinogenesis of different tumors. Nuclear factor of activated T-cells, cytoplasmic 2 (NFATc2) and peroxisome proliferator-activated receptor gamma (PPARG) transcription factors are important in the carcinogenesis of colorectal cancer (CRC). In this study, we examined whether the expression of NFATc2 and PPARG genes is significantly altered during the carcinogenesis of CRC. A total of 47 tumor samples and matched normal tissue margins were collected during surgery from patients with CRC...
May 15, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28469842/peripheral-leukocyte-and-endometrium-molecular-biomarkers-of-inflammation-and-oxidative-stress-are-altered-in-peripartal-dairy-cows-supplemented-with-zn-mn-and-cu-from-amino-acid-complexes-and-co-from-co-glucoheptonate
#19
Fernanda Batistel, Johan S Osorio, Muhammad Rizwan Tariq, Cong Li, Jessica Caputo, Michael T Socha, Juan J Loor
BACKGROUND: Immune dysfunction and a higher risk of uterine infections are characteristics of the transition into lactation in dairy cows. The supply of complexed trace minerals, which are more bioavailable, could help overcome the greater needs of these nutrients in tissues around parturition and early lactation. RESULTS: Twenty Holstein cows received an oral bolus with a mix of inorganic trace minerals (INO) or complexed trace minerals (AAC) to achieve 75, 65, 11, and 1 ppm supplemental Zn, Mn, Cu, and Co, respectively, in the total diet dry matter from -30 d through +30 d relative to parturition...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28446747/a-systems-pharmacology-approach-to-determine-active-compounds-and-action-mechanisms-of-xipayi-kuijie-an-enema-for-treatment-of-ulcerative-colitis
#20
Wei Yu, Zhihong Li, Fei Long, Wen Chen, Yurong Geng, Zhiyong Xie, Meicun Yao, Bo Han, Teigang Liu
Xipayi Kui Jie'an (KJA), a type of traditional Uygur medicine (TUM), has shown promising therapeutic effects in Ulcerative colitis (UC). Owing to the complexity of TUM, the pharmacological mechanism of KJA remains vague. Therefore, the identification of complex molecular mechanisms is a major challenge and a new method is urgently needed to address this problem. In this study, we established a feasible pharmacological model based on systems pharmacology to identify potential compounds and targets. We also applied compound-target and target-diseases network analysis to evaluate the action mechanisms...
April 26, 2017: Scientific Reports
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