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https://www.readbyqxmd.com/read/28817438/alternatively-activated-macrophages-drive-browning-of-white-adipose-tissue-in-burns
#1
Abdikarim Abdullahi, Christopher Auger, Mile Stanojcic, David Patsouris, Alexandra Parousis, Slava Epelman, Marc G Jeschke
OBJECTIVE: The aim of this study was to uncover the mediators and mechanistic events that facilitate the browning of white adipose tissue (WAT) in response to burns. BACKGROUND: In hypermetabolic patients (eg, burns, cancer), the browning of WAT has presented substantial clinical challenges related to cachexia, atherosclerosis, and poor clinical outcomes. Browning of the adipose tissue has recently been found to induce and sustain hypermetabolism. Although browning appears central in trauma-, burn-, or cancer-induced hypermetabolic catabolism, the mediators are essentially unknown...
August 16, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28816422/dolichol-kinase-deficiency-dolk-cdg-two-new-cases-and-expansion-of-phenotype
#2
Eric T Rush, Craig V Baker, William B Rizzo
Congenital disorders of glycosylation (CDGs) are a group of genetic diseases caused by mutations in genes that are necessary for the addition of oligosaccharides to acceptor proteins or lipids. An early step in this process requires dolichol kinase (DK) to catalyze the formation of dolichyl phosphate, which acts as a membrane anchor for initial attachment of sugar residues that are subsequently built up to oligosaccharides and transferred to acceptor proteins and lipids for further processing. Biallelic mutations in DOLK, the gene for DK, result in human in a CDG with variable symptoms, ranging from nonsyndromic dilated cardiomypopathy to severe multiorgan involvement...
September 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28816213/association-of-presenile-cataract-with-galactose-1-phosphate-uridyl-transferase-gene-mutations
#3
Nitin Nema, Ravindra Kumar, Abha Verma, Sonam Verma, Kiran Chaturvedi
BACKGROUND: Presenile cataract is commonly idiopathic in origin. However, patients with presenile cataract could have an underlying genetic abnormality of galactose metabolism. We studied the association, if any, between idiopathic presenile cataract and galactose-1 -phosphate uridyl transferase (GALT) gene mutation. METHODS: We selected 50 patients with idiopathic presenile cataract, <45 years of age, and 50 age- and sex-matched controls for the study. Mutations in the GALT gene were determined by polymerase chain reaction restriction fragment length polymorphism...
March 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/28815718/a-potential-high-risk-for-fatty-liver-disease-was-found-in-mice-generated-after-assisted-reproductive-techniques
#4
Gu Ll, Zhang Jj, Zheng Mm, Dong Gy, Xu Jy, Zhang Wy, Yibo Wu, Yang Yang, Zhu H
Abnormal gametogenesis and embryonic development may lead to poor health status of the offspring. The operations involved in the assisted reproductive technologies (ARTs) occur during the key stage of gametogenesis and early embryonic development. To assess the potential risk of abnormal lipid metabolism in the liver of adult ARTs offspring, two ARTs mice models derived from preimplantation genetic diagnosis (PGD group) and in vitro cultured embryos without biopsy (IVEM group) were constructed. And control mice were from in vivo naturally conceived (Normal group)...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28814976/analysis-of-proteomes-released-from-in-vitro-cultured-eight-clostridium-difficile-pcr-ribotypes-revealed-specific-expression-in-pcr-ribotypes-027-and-176-confirming-their-genetic-relatedness-and-clinical-importance-at-the-proteomic-level
#5
Jiri Dresler, Marcela Krutova, Alena Fucikova, Jana Klimentova, Veronika Hruzova, Miloslava Duracova, Katerina Houdkova, Barbora Salovska, Jana Matejkova, Martin Hubalek, Petr Pajer, Libor Pisa, Otakar Nyc
BACKGROUND: Clostridium difficile is the causative agent of C. difficile infection (CDI) that could be manifested by diarrhea, pseudomembranous colitis or life-threatening toxic megacolon. The spread of certain strains represents a significant economic burden for health-care. The epidemic successful strains are also associated with severe clinical features of CDI. Therefore, a proteomic study has been conducted that comprises proteomes released from in vitro cultured panel of eight different PCR ribotypes (RTs) and employs the combination of shotgun proteomics and label-free quantification (LFQ) approach...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28814642/an-indel-in-the-promoter-of-al-activated-malate-transporter-9-selected-during-tomato-domestication-determines-fruit-malate-contents-and-aluminum-tolerance
#6
Jie Ye, Xin Wang, Ti Xu Hu, Feng Xia Zhang, Bing Wang, Chang Xin Li, Tian Xia Yang, Han Xia Li, Yong En Lu, James J Giovannoni, Yuyang Zhang, Zhibiao Ye
Deciphering the mechanism of malate accumulation in plants would contribute to a greater understanding of plant chemistry, which has implications for improving flavor quality in crop species and enhancing human health benefits. However, the regulation of malate metabolism is poorly understood in crops such as tomato (Solanum lycopersicum). Here, we integrated a metabolite-based genome-wide association study (mGWAS) with linkage mapping and gene functional studies to characterize the genetics of malate accumulation in a global collection of tomato accessions with broad genetic diversity...
August 16, 2017: Plant Cell
https://www.readbyqxmd.com/read/28814270/transcriptional-analysis-of-abdominal-fat-in-chickens-divergently-selected-on-bodyweight-at-two-ages-reveals-novel-mechanisms-controlling-adiposity-validating-visceral-adipose-tissue-as-a-dynamic-endocrine-and-metabolic-organ
#7
C W Resnyk, W Carré, X Wang, T E Porter, J Simon, E Le Bihan-Duval, M J Duclos, S E Aggrey, L A Cogburn
BACKGROUND: Decades of intensive genetic selection in the domestic chicken (Gallus gallus domesticus) have enabled the remarkable rapid growth of today's broiler (meat-type) chickens. However, this enhanced growth rate was accompanied by several unfavorable traits (i.e., increased visceral fatness, leg weakness, and disorders of metabolism and reproduction). The present descriptive analysis of the abdominal fat transcriptome aimed to identify functional genes and biological pathways that likely contribute to an extreme difference in visceral fatness of divergently selected broiler chickens...
August 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28813755/genetics-of-alcoholism
#8
Ena C Zhu, Timothy J Soundy, Yueshan Hu
Consuming excessive amounts of alcohol has the potential to modify an individual's brain and lead to alcohol dependence. Alcohol use leads to 88,000 deaths every year in the U.S. alone and can lead to other health issues including cancers, such as colorectal cancer, and mental health problems. While drinking behavior varies due to environmental factors, genetic factors also contribute to the risk of alcoholism. Certain genes affecting alcohol metabolism and neurotransmitters have been found to contribute to or inhibit the risk...
May 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813462/a-comprehensive-profiling-of-t-and-b-lymphocyte-receptor-repertoires-from-a-chinese-origin-rhesus-macaque-by-high-throughput-sequencing
#9
Longfei Fu, Xinyang Li, Wei Zhang, Changxi Wang, Jinghua Wu, Huanming Yang, Jian Wang, Xiao Liu
Due to the close genetic background, high similarity of physiology, and susceptibility to infectious and metabolic diseases with humans, rhesus macaques have been widely used as an important animal model in biomedical research, especially in the study of vaccine development and human immune-related diseases. In recent years, high-throughput sequencing based immune repertoire sequencing (IR-SEQ) has become a powerful tool to study the dynamic adaptive immune responses. Several previous studies had analyzed the responses of B cells to HIV-1 trimer vaccine or T cell repertoire of rhesus macaques using this technique, however, there are little studies that had performed a comprehensive analysis of immune repertoire of rhesus macaques, including T and B lymphocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28812709/adaptation-to-deep-sea-chemosynthetic-environments-as-revealed-by-mussel-genomes
#10
Jin Sun, Yu Zhang, Ting Xu, Yang Zhang, Huawei Mu, Yanjie Zhang, Yi Lan, Christopher J Fields, Jerome Ho Lam Hui, Weipeng Zhang, Runsheng Li, Wenyan Nong, Fiona Ka Man Cheung, Jian-Wen Qiu, Pei-Yuan Qian
Hydrothermal vents and methane seeps are extreme deep-sea ecosystems that support dense populations of specialized macro-benthos such as mussels. But the lack of genome information hinders the understanding of the adaptation of these animals to such inhospitable environments. Here we report the genomes of a deep-sea vent/seep mussel (Bathymodiolus platifrons) and a shallow-water mussel (Modiolus philippinarum). Phylogenetic analysis shows that these mussel species diverged approximately 110.4 million years ago...
April 3, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812298/a-gata-type-transcription-factor-acareb-for-nitrogen-metabolism-is-involved-in-regulation-of-cephalosporin-biosynthesis-in-acremonium-chrysogenum
#11
Feifei Guan, Yuanyuan Pan, Jinyang Li, Gang Liu
In filamentous fungi, nitrogen metabolism is repressed by GATA-type zinc finger transcription factors. Nitrogen metabolite repression has been found to affect antibiotic production, but the mechanism is still poorly understood. AcareB, encoding a homologue of fungal GATA-type regulatory protein, was cloned from Acremonium chrysogenum. Gene disruption and genetic complementation demonstrated that AcareB plays a key role in utilization of ammonium, glutamine and urea. In addition, significant reduction of cephalosporin production in the AcareB disruption mutant indicated that AcareB is important for cephalosporin production...
August 14, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28811597/vitamin-d-receptor-gene-polymorphisms-modify-cardiometabolic-response-to-vitamin-d-supplementation-in-t2dm-patients
#12
Nasser M Al-Daghri, Abdul Khader Mohammed, Omar S Al-Attas, Mohammed Ghouse Ahmed Ansari, Kaiser Wani, Syed D Hussain, Shaun Sabico, Gyanendra Tripathi, Majed S Alokail
There is conflicting evidence on the favorable effects of vitamin D supplementation on metabolic profile in Type 2 diabetes mellitus (T2DM) patients and this might be due to genetic variations in vitamin D receptors (VDRs). Thus, we studied the metabolic effects of a 12-month vitamin D supplementation in T2DM patients according to VDR polymorphisms. A total of 204 T2DM subjects received 2000 IU vitamin D3 daily for 12 months. Serum 25(OH)D and metabolic profiles were measured at baseline and after 12 months...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811511/from-metabolome-to-phenotype-gc-ms-metabolomics-of-developing-mutant-barley-seeds-reveals-effects-of-growth-temperature-and-genotype
#13
Bekzod Khakimov, Morten Arendt Rasmussen, Rubini Maya Kannangara, Birthe Møller Jespersen, Lars Munck, Søren Balling Engelsen
The development of crop varieties tolerant to growth temperature fluctuations and improved nutritional value is crucial due to climate change and global population growth. This study investigated the metabolite patterns of developing barley seed as a function of genotype and growth temperature for ideal vegetable protein production and for augmented β-glucan production. Seeds from three barley lines (Bomi, lys3.a and lys5.f) were sampled eight times during grain filling and analysed for metabolites using gas chromatography-mass spectrometry (GC-MS)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808816/a-genome-wide-association-study-of-cognitive-function-in-chinese-adult-twins
#14
Chunsheng Xu, Dongfeng Zhang, Yili Wu, Xiaocao Tian, Zengchang Pang, Shuxia Li, Qihua Tan
Multiple loci or genes have been identified using genome-wide association studies mainly in western countries but with inconsistent results. No similar studies have been conducted in the world's largest and rapidly aging Chinese population. The paper aimed to identify the specific genetic variants associated with cognitive function in middle and old-aged Chinese dizygotic twins (DZ). Cognitive function was measured on 139 pairs of DZ by Montreal Cognitive Assessment. The subjects were genotyped at 1048575 SNP positions...
August 14, 2017: Biogerontology
https://www.readbyqxmd.com/read/28808798/genetic-engineering-approach-using-early-vinca-alkaloid-biosynthesis-genes-led-to-increased-tryptamine-and-terpenoid-indole-alkaloids-biosynthesis-in-differentiating-cultures-of-catharanthus-roseus
#15
Abhishek Sharma, Priyanka Verma, Archana Mathur, Ajay Kumar Mathur
Catharanthus roseus today occupies the central position in ongoing metabolic engineering efforts in medicinal plants. The entire multi-step biogenetic pathway of its very expensive anticancerous alkaloids vinblastine and vincristine is fairly very well dissected at biochemical and gene levels except the pathway steps leading to biosynthesis of monomeric alkaloid catharanthine and tabersonine. In order to enhance the plant-based productivity of these pharma molecules for the drug industry, cell and tissue cultures of C...
August 14, 2017: Protoplasma
https://www.readbyqxmd.com/read/28808547/patterns-of-seasonality-and-group-membership-characterize-the-gut-microbiota-in-a-longitudinal-study-of-wild-verreaux-s-sifakas-propithecus-verreauxi
#16
Andrea Springer, Claudia Fichtel, Gabriel A Al-Ghalith, Flávia Koch, Katherine R Amato, Jonathan B Clayton, Dan Knights, Peter M Kappeler
The intestinal microbiota plays a major role in host development, metabolism, and health. To date, few longitudinal studies have investigated the causes and consequences of microbiota variation in wildlife, although such studies provide a comparative context for interpreting the adaptive significance of findings from studies on humans or captive animals. Here, we investigate the impact of seasonality, diet, group membership, sex, age, and reproductive state on gut microbiota composition in a wild population of group-living, frugi-folivorous primates, Verreaux's sifakas (Propithecus verreauxi)...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28808102/recruitment-of-pre-existing-networks-during-the-evolution-of-c4-photosynthesis
#17
REVIEW
Ivan Reyna-Llorens, Julian M Hibberd
During C4 photosynthesis, CO2 is concentrated around the enzyme RuBisCO. The net effect is to reduce photorespiration while increasing water and nitrogen use efficiencies. Species that use C4 photosynthesis have evolved independently from their C3 ancestors on more than 60 occasions. Along with mimicry and the camera-like eye, the C4 pathway therefore represents a remarkable example of the repeated evolution of a highly complex trait. In this review, we provide evidence that the polyphyletic evolution of C4 photosynthesis is built upon pre-existing metabolic and genetic networks...
September 26, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28808057/a-kidney-specific-genetic-control-module-in-mice-governs-endocrine-regulation-of-the-cytochrome-p450-gene-cyp27b1-essential-for-vitamin-d3-activation
#18
Mark B Meyer, Nancy A Benkusky, Martin Kaufmann, Seong Min Lee, Melda Onal, Glenville Jones, J Wesley Pike
The vitamin D endocrine system regulates mineral homeostasis through its activities in the intestine, kidney, and bone. Terminal activation of vitamin D3 to its hormonal form, 1,25(OH)2D3, occurs in the kidney via the cytochrome P450 enzyme CYP27B1. Despite its importance in vitamin D metabolism, the molecular mechanisms underlying the regulation of the gene for this enzyme, Cyp27b1, are unknown. Here, we identified a kidney-specific control module governed by a renal cell-specific chromatin structure located distal to Cyp27b1 that mediates unique basal and parathyroid hormone (PTH)-, fibroblast growth factor 23 (FGF23)-, and 1,25(OH)2D3-mediated regulation of Cyp27b1 expression...
August 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28807600/methylglyoxal-synthase-regulates-cell-elongation-via-alterations-of-cellular-methylglyoxal-and-spermidine-content-in-bacillus-subtilis
#19
Sang-Min Shin, Sung-Hyun Song, Jin-Woo Lee, Min-Kyu Kwak, Sa-Ouk Kang
Methylglyoxal regulates cell division and differentiation through its interaction with polyamines. Loss of their biosynthesizing enzyme causes physiological impairment and cell elongation in eukaryotes. However, the reciprocal effects of methylglyoxal and polyamine production and its regulatory metabolic switches on morphological changes in prokaryotes have not been addressed. Here, Bacillus subtilis methylglyoxal synthase (mgsA) and polyamine biosynthesizing genes encoding arginine decarboxylase (SpeA), agmatinase (SpeB), and spermidine synthase (SpeE), were disrupted or overexpressed...
August 11, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28806535/interactions-between-genetic-polymorphisms-of-glucose-metabolizing-genes-and-smoking-and-alcohol-consumption-in-the-risk-of-type-2-diabetes-mellitus
#20
Kaiping Gao, Yongcheng Ren, Jinjin Wang, Zichen Liu, Jianna Li, Linlin Li, Bingyuan Wang, Hong Li, Yaxi Wang, Yunkai Cao, Kinji Ohno, Rihong Zhai, Zhen Liang
The impact of gene-environment interaction on diabetes remains largely unknown. We aimed to investigate whether interaction between glucose metabolizing genes and lifestyle factors are associated with type 2 diabetes mellitus (T2DM). METHODS- Interactions between genotypes of 4 glucose metabolizing genes (MTNR1B, KCNQ1, KLF14, and GCKR) and lifestyle factors were estimated in 722 T2DM patients and 759 controls, using multiple logistic regression. RESULTS- No significant associations with T2DM were detected for the SNPs of MTNR1B, KLF14 and GCKR...
August 14, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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