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https://www.readbyqxmd.com/read/28708516/peroxisome-proliferator-activated-receptor-ppar-isoforms-are-differentially-expressed-in-peri-implantation-porcine-conceptuses
#1
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/28698213/gene-expression-profiles-of-brain-endothelial-cells-during-embryonic-development-at-bulk-and-single-cell-levels
#2
Mike Hupe, Minerva Xueting Li, Susanne Kneitz, Daria Davydova, Chika Yokota, Julianna Kele-Olovsson, Belma Hot, Jan M Stenman, Manfred Gessler
The blood-brain barrier is a dynamic interface that separates the brain from the circulatory system, and it is formed by highly specialized endothelial cells. To explore the molecular mechanisms defining the unique nature of vascular development and differentiation in the brain, we generated high-resolution gene expression profiles of mouse embryonic brain endothelial cells using translating ribosome affinity purification and single-cell RNA sequencing. We compared the brain vascular translatome with the vascular translatomes of other organs and analyzed the vascular translatomes of the brain at different time points during embryonic development...
July 11, 2017: Science Signaling
https://www.readbyqxmd.com/read/28555083/ppar-delta-modulates-membrane-cholesterol-and-cytokine-signaling-in-malignant-b-cells
#3
L Sun, Y Shi, G Wang, X Wang, S Zeng, S E Dunn, G D Fairn, Y-J Li, D E Spaner
New treatment strategies may be uncovered with a deeper understanding of the mechanisms that underlie aberrant signal transduction in B cell cancers such as chronic lymphocytic leukemia (CLL). The lipid-activated nuclear receptor peroxisome proliferator-activated receptor delta (PPARδ) mediates a number of features of aggressive cancers and was found to enhance janus kinase (JAK)-mediated phosphorylation of signal transducer and activator of transcription (STAT) proteins in B lymphoma cell-lines and primary CLL cells...
May 30, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28542811/integrative-analyses-reveal-biological-pathways-and-key-genes-in-psoriasis
#4
J Dou, L Zhang, X Xie, L Ye, C Yang, L Wen, C Shen, C Zhu, S Zhao, Z Zhu, B Liang, Z Wang, H Li, X Fan, S Liu, X Yin, X Zheng, L Sun, S Yang, Y Cui, F Zhou, X Zhang
BACKGROUND: Psoriasis is a complex disease that is influenced by both genetic and environmental factors with abnormal gene expression in lesional skin. However, no studies are available on genome-scale gene expression of psoriatic lesions in the Chinese population. In addition, systematic studies on the biological pathways, pathogenicity and interaction networks of psoriasis-related genes with abnormal expression profiles require further investigation. OBJECTIVES: To further explore the associated pathways in psoriasis by functional analysis and to identify the key genes by gene pathogenicity analysis...
May 25, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28539839/ppard-is-an-inhibitor-of-cartilage-growth-in-external-ears
#5
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/28455310/exercise-induced-modification-of-the-skeletal-muscle-transcriptome-in-arabian-horses
#6
Katarzyna Ropka-Molik, Monika Stefaniuk-Szmukier, Kacper Żukowski, Katarzyna Piórkowska, Monika Bugno-Poniewierska
It has been found that Arabian and Thoroughbred horses differ in muscle fiber structure and thus in physiological changes occurring in muscles during exercise. The aim of the present study was to identify the global gene expression modifications that occur in skeletal muscle following a training regime to prepare for flat racing. Whole transcriptomes of muscle (gluteus medius) were compared between three time points of tissue collection: T0 (untrained horses), T1 (horses after intense gallop phase) and T2 (horses at the end of racing season), 23 samples in total...
April 28, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28287878/association-of-peroxisome-proliferator-activated-receptor-delta-and-additional-gene-smoking-interaction-on-cardiovascular-disease
#7
Wenqi Yang, Shudan Mao, Baoze Qu, Fengxiang Zhang, Zhaolong Xu
AIMS: To investigate the impact of peroxisome proliferator-activator receptor delta (PPARD) gene polymorphism and additional gene-smoking interaction on cardiovascular disease (CVD) risk based on this Chinese population. METHODS: A total of 1048 subjects (617 males, 431 females) with a mean age of 52.9 ± 14.1 years old were selected, including 520 CVD patients and 528 normal control subjects. The logistic regression model was used to examine the association between three SNPs and CVD risk, odds ratio (OR), and 95% confident interval (95%CI) were calculated...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28237587/hepatic-mrna-expression-for-genes-related-to-somatotropic-axis-glucose-and-lipid-metabolisms-and-inflammatory-response-of-periparturient-dairy-cows-treated-with-recombinant-bovine-somatotropin
#8
P R B Silva, W J Weber, B A Crooker, R J Collier, W W Thatcher, R C Chebel
Objectives of this experiment were to evaluate the effects of recombinant bovine somatotropin (rbST) treatment of periparturient dairy cows on hepatic mRNA expression for genes related to the somatotropic axis, insulin, glucose, and lipid metabolism, inflammation, and oxidative stress. Holstein cows were enrolled in the experiment at 253 ± 3 d of gestation and assigned to 1 of 3 treatments: untreated control (n = 53), 87.5 mg of rbST (n = 56; rbST87.5), and 125 mg of rbST (n = 57; rbST125). Cows in the rbST87...
May 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28218777/comparative-study-of-13-candidate-genes-applying-multi-reference-normalization-to-detect-the-expression-of-different-fineness-in-skin-tissues-of-wool-sheep
#9
COMPARATIVE STUDY
Y Z Tian, T Usman, K C Tian, J Di, X X Huang, X M Xu, H Tulafu, W W Wu, X F Fu, Y Bai, M Tuerxun, A Maimaiti
Fiber diameter is a useful indicator of wool traits and it is the main determinant of wool quality and value. A comparative study was conducted to analyze the abundance and expression of 13 candidate genes using expression profile microarray analysis and to identify novel molecular markers associated with wool traits to provide a molecular basis for improving wool quality in sheep. Genes associated with fineness of skin tissue were identified using a real-time reverse transcriptase-polymerase chain reaction method with 18SrRNA, β-Actin, and GAPDH used for multi-reference normalization...
February 16, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28168966/extracorporeal-membrane-oxygenation-for%C3%A2-acute-respiratory-distress-syndrome-after-pneumonectomy
#10
Jeremie Reeb, Anne Olland, Julien Pottecher, Xavier Delabranche, Mickael Schaeffer, Stephane Renaud, Nicola Santelmo, Romain Kessler, Gilbert Massard, Pierre-Emmanuel Falcoz
BACKGROUND: Postpneumonectomy acute respiratory distress syndrome (ppARDS) is a life-threatening condition with a disastrous prognosis. This study assessed the efficacy of venovenous extracorporeal membrane oxygenation (VV-ECMO) in adult patients with unresponsive severe ppARDS. METHODS: We retrospectively reviewed data of all patients treated with VV-ECMO for ppARDS from January 2009 to December 2015. We calculated the Sequential Organ Failure Assessment score before ECMO insertion and monitored the subsequent mechanical ventilation settings...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28128413/protective-role-of-294-t-c-rs2016520-polymorphism-of-ppard-in-mexican-patients-with-colorectal-cancer
#11
M A Rosales-Reynoso, L I Wence-Chavez, A R Arredondo-Valdez, S Dumois-Petersen, P Barros-Núñez, M P Gallegos-Arreola, S E Flores-Martínez, J Sánchez-Corona
PPARD encodes for peroxisome proliferator-activated receptor delta, which plays a significant role in controlling lipid metabolism, atherosclerosis, inflammation, cancer growth, progression, and apoptosis. Accumulated evidence suggests that the polymorphism rs2016520 in PPARD is associated with lipid metabolism, obesity, metabolic syndrome, and type 2 diabetes mellitus. The aim of this study was to determine whether the single nucleotide polymorphism +294T/C (rs2016520) in PPARD is associated with colorectal cancer (CRC) in the Mexican population...
January 23, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28118822/genome-wide-association-study-for-conformation-traits-in-three-danish-pig-breeds
#12
Thu H Le, Ole F Christensen, Bjarne Nielsen, Goutam Sahana
BACKGROUND: Selection for sound conformation has been widely used as a primary approach to reduce lameness and leg weakness in pigs. Identification of genomic regions that affect conformation traits would help to improve selection accuracy for these lowly to moderately heritable traits. Our objective was to identify genetic factors that underlie leg and back conformation traits in three Danish pig breeds by performing a genome-wide association study followed by meta-analyses. METHODS: Data on four conformation traits (front leg, back, hind leg and overall conformation) for three Danish pig breeds (23,898 Landrace, 24,130 Yorkshire and 16,524 Duroc pigs) were used for association analyses...
January 24, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28118678/effect-of-sex-on-the-acute-skeletal-muscle-response-to-sprint-interval-exercise
#13
Lauren E Skelly, Jenna B Gillen, Martin J MacInnis, Brian J Martin, Adeel Safdar, Mahmood Akhtar, Maureen J MacDonald, Mark A Tarnopolsky, Martin J Gibala
What is the central question of this study? Are there sex-based differences in the acute skeletal muscle response to sprint interval training (SIT)? What is the main finding and its importance? In response to a SIT protocol that involved three 20 s bouts of 'all-out' cycling, the expression of multiple genes associated with mitochondrial biogenesis, metabolic control and structural remodelling was largely similar between men and women matched for fitness. Our findings cannot explain previous reports of sex-based differences in the adaptive response to SIT and suggest that the mechanistic basis for these differences remains to be elucidated...
January 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28115213/two-novel-candidate-genes-identified-in-adults-from-the-newfoundland-population-with-addictive-tendencies-towards-food
#14
Pardis Pedram, Guangju Zhai, Wayne Gulliver, Hongwei Zhang, Guang Sun
Food addiction (FA) is a distinguished clinical feature affecting about 5% adults of the general population in Canada. FA contributes to obesity, however, the underlying genes in FA are largely unknown. The aim of the current study was to search for FA candidate genes using an exome sequencing followed by a verification study using the most significantly associated identified genes. From a total of 752 adults, 24 subjects were selected including 8 obese with high and 8 obese with low/zero FA clinical symptom score (FAO, NFO), and 8 healthy controls with normal BMI and low/zero FA symptom score (Ctrl)...
August 1, 2017: Appetite
https://www.readbyqxmd.com/read/28105924/molecular-determinants-of-the-adrenal-gland-functioning-related-to-stress-sensitive-hypertension-in-isiah-rats
#15
Larisa A Fedoseeva, Leonid O Klimov, Nikita I Ershov, Yury V Alexandrovich, Vadim M Efimov, Arcady L Markel, Olga E Redina
BACKGROUND: The adrenals are known as an important link in pathogenesis of arterial hypertensive disease. The study was directed to the adrenal transcriptome analysis in ISIAH rats with stress-sensitive arterial hypertension and predominant involvement in pathogenesis of the hypothalamic-pituitary-adrenal and sympathoadrenal systems. RESULTS: The RNA-Seq approach was used to perform the comparative adrenal transcriptome profiling in hypertensive ISIAH and normotensive WAG rats...
December 28, 2016: BMC Genomics
https://www.readbyqxmd.com/read/28097239/metastasis-regulation-by-ppard-expression-in-cancer-cells
#16
Xiangsheng Zuo, Weiguo Xu, Min Xu, Rui Tian, Micheline J Moussalli, Fei Mao, Xiaofeng Zheng, Jing Wang, Jeffrey S Morris, Mihai Gagea, Cathy Eng, Scott Kopetz, Dipen M Maru, Asif Rashid, Russell Broaddus, Daoyan Wei, Mien-Chie Hung, Anil K Sood, Imad Shureiqi
Peroxisome proliferator-activated receptor-δ (PPARD) is upregulated in many major human cancers, but the role that its expression in cancer cells has in metastasis remains poorly understood. Here, we show that specific PPARD downregulation or genetic deletion of PPARD in cancer cells significantly repressed metastasis in various cancer models in vivo. Mechanistically, PPARD promoted angiogenesis via interleukin 8 in vivo and in vitro. Analysis of transcriptome profiling of HCT116 colon cancer cells with or without genetic deletion of PPARD and gene expression patterns in The Cancer Genome Atlas colorectal adenocarcinoma database identified novel pro-metastatic genes (GJA1, VIM, SPARC, STC1, SNCG) as PPARD targets...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28050012/ppar-delta-promotes-survival-of-chronic-lymphocytic-leukemia-cells-in-energetically-unfavorable-conditions
#17
Y-J Li, L Sun, Y Shi, G Wang, X Wang, S E Dunn, C Iorio, R A Screaton, D E Spaner
Targeting the mechanisms that allow chronic lymphocytic leukemia (CLL) cells to survive in harsh cancer microenvironments should improve patient outcomes. The nuclear receptor peroxisome proliferator activated receptor delta (PPARδ) sustains other cancers, and in silico analysis showed higher PPARD expression in CLL cells than normal lymphocytes and other hematologic cancers. A direct association was found between PPARδ protein levels in CLL cells and clinical score. Transgenic expression of PPARδ increased the growth and survival of CD5(+) Daudi cells and primary CLL cells in stressful conditions including exhausted tissue culture media, low extracellular glucose, hypoxia and exposure to cytotoxic drugs...
January 31, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27938626/prepartum-maternal-diets-supplemented-with-oilseeds-alter-the-fatty-acid-profile-in-bovine-neonatal-plasma-possibly-through-reduced-placental-expression-of-fatty-acid-transporter-protein-4-and-fatty-acid-translocase
#18
Reza Salehi, Divakar J Ambrose
In the present study, we determined the effects of maternal dietary fat and the type of fat on plasma fatty acids and the expression of placental fatty acid transporter genes. In Experiment 1, Holstein cows in the last 35 days of gestation received diets containing sunflower seed (n=8; high in linoleic acid (LA)), canola seed (n=7; high in oleic acid (OLA)) or no oilseed (n=7; control). Fatty acids were quantified in dam and neonate plasma at calving. In Experiment 2, placental cotyledons were collected (LA: n=4; OLA: n=4; control: n=5) to quantify gene expression...
December 12, 2016: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/27865496/peroxisome-proliferator-activated-receptor-delta-facilitates-lipid-secretion-and-catabolism-of-fatty-acids-in-dairy-goat-mammary-epithelial-cells
#19
H B Shi, C H Zhang, W Zhao, J Luo, J J Loor
In rodents, peroxisome proliferator-activated receptor delta (PPARD) is associated primarily with catabolism of fatty acids. However, the role of PPARD in regulating lipid metabolism in ruminant mammary gland remains unknown. In the present study, we assessed the mRNA abundance of PPARD at 3 stages of lactation in goat mammary tissue. Results revealed that PPARD had lower expression at peak lactation than in the nonlactating period. Luciferase assays revealed that GW0742 (GW), a specific PPARD ligand, enhanced the activity of the PPARD response element in goat mammary epithelial cells...
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27856609/ppar%C3%AE-is-required-for-exercise-to-attenuate-endoplasmic-reticulum-stress-and-endothelial-dysfunction-in-diabetic-mice
#20
Wai San Cheang, Wing Tak Wong, Lei Zhao, Jian Xu, Li Wang, Chi Wai Lau, Zhen Yu Chen, Ronald Ching Wan Ma, Aimin Xu, Nanping Wang, Xiao Yu Tian, Yu Huang
Physical activity has profound benefits on health, especially on cardiometabolic wellness. Experiments in rodents with trained exercise have shown that exercise improves vascular function and reduces vascular inflammation by modulating the balance between nitric oxide (NO) and oxidative stress. However, the upstream regulator of exercise-induced vascular benefits is unclear. We aimed to investigate the involvement of peroxisome proliferator-activated receptor δ (PPARδ) in exercise-induced vascular functional improvement...
February 2017: Diabetes
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