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https://www.readbyqxmd.com/read/29684863/psychological-and-genetic-risk-factors-associated-with-suicidal-behavior-in-korean-patients-with-mood-disorders
#1
Hee-Yeon Choi, Ga Eun Kim, Kyoung Ae Kong, Yu Jin Lee, Weon-Jeong Lim, So-Hyun Park, Su Hee Ha, Soo In Kim
INTRODUCTION: To prevent suicide, a nationwide important issue in Korea, understanding its etiology is essential. This study aimed to delineate the risk factors for suicidal behavior in mood disorder patients in Korea. METHODS: 216 patients with mood disorders were recruited. We measured suicidal ideation (SI) and suicide attempt (SA) history and the association of six gene polymorphisms with SB: COMT (rs4680), HTR1A (rs6295), TPH1 (rs1800532), BDNF (rs6265), SLC1A3 (rs2269272), and SLC1A2 (rs4755404)...
April 10, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29684710/genomic-characterization-of-endemic-salmonella-enterica-serovar-typhimurium-and-salmonella-enterica-serovar-i-4-5-12-i-isolated-in-malaysia
#2
Soo Tein Ngoi, Kien-Pong Yap, Kwai Lin Thong
Salmonella enterica serovar Typhimurium (S. Typhimurium) and the monophasic variant Salmonella I 4,[5],12:i:- are two clinically-important non-typhoidal Salmonella serovars worldwide. However, the genomic information of these two organisms, especially the monophasic variant, is still lacking in Malaysia. The objective of the study was to compare the genomic features of a monophasic variant and two endemic S. Typhimurium strains isolated from humans. All three strains were subjected to whole genome sequencing followed by comparative genomic and phylogenetic analyses...
April 20, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29684657/engineering-low-cadmium-rice-through-stress-inducible-expression-of-oxs3-family-member-genes
#3
Changhu Wang, Weili Guo, Xingzhe Cai, Ruyu Li, David W Ow
Cadmium (Cd) as a carcinogen poses a great threat to food security and public health through plant-derived foods such as rice, the staple for nearly half of the world's population. We have previously reported that overexpression of truncated gene fragments derived from the rice genes OsO3L2 and OsO3L3 could reduce Cd accumulation in transgenic rice. However, we did not test the full length genes due to prior work in Arabidopsis where overexpression of these genes caused seedling lethality. Here, we report on limiting the overexpression of OsO3L2 and OsO3L3 through the use of the stress- inducible promoter RD29B...
April 20, 2018: New Biotechnology
https://www.readbyqxmd.com/read/29684538/molecular-cloning-characterization-and-expression-analysis-of-c-ebp-%C3%AE-%C3%AE-and-%C3%AE-in-adipose-related-tissues-and-adipocyte-of-duck-anas-platyrhynchos
#4
Jiamin Qiu, Wanxia Wang, Shenqiang Hu, Yushi Wang, Wenqiang Sun, Jiwei Hu, Jiwen Wang
CCAAT/enhancer binding protein α, β, δ (C/EBP α, β, δ) are essential transcriptional factors in regulating adipose development. However, information about their sequence characteristics and functions during adipocyte development still remains scarce in birds. In present study, we found that duck C/EBP α, β, δ differed in their phosphorylation sites and low complexity regions (LCRs) among their orthologs and paralogs. Phylogenetic analysis showed that C/EBP α, β, δ had different evolutionary patterns, and each of duck C/EBP α, β, δ was strikingly diverged from orthologs of other Aves...
April 20, 2018: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29684214/new-perspectives-on-chloroplast-protein-import
#5
Masato Nakai
Virtually all chloroplasts in extant photosynthetic eukaryotes derive from a single endosymbiotic event that likely occurred more than a billion years ago between a host eukaryotic cell and a cyanobacterium-like ancestor. Many endosymbiont genes were subsequently transferred to the host nuclear genome, concomitant with the establishment of a system for protein transport through the chloroplast double-membrane envelope. Presently, 2000-3000 different nucleus-encoded chloroplast proteins must be imported into the chloroplast following their synthesis in the cytosol...
April 19, 2018: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29684072/arginine-is-a-component-of-the-ammonium-cyg56-signalling-cascade-that-represses-genes-of-the-nitrogen-assimilation-pathway-in-chlamydomonas-reinhardtii
#6
David González-Ballester, Emanuel Sanz-Luque, Aurora Galván, Emilio Fernández, Amaury de Montaigu
Nitrogen assimilation and metabolism are essential processes for all living organisms, yet there is still much to be learnt on how they are regulated. The use of Chlamydomonas reinhardtii as a model system has been instrumental not only in identifying conserved regulation mechanisms that control the nitrogen assimilation pathway, but also in understanding how the intracellular nitrogen status regulates metabolic processes of industrial interest such as the synthesis of biolipids. While the genetic regulators that control the nitrogen pathway are successfully being unravelled, other layers of regulation have received less attention...
2018: PloS One
https://www.readbyqxmd.com/read/29683762/regulation-of-hemolysin-in-uropathogenic-escherichia-coli-fine-tunes-killing-of-human-macrophages
#7
Ambika M V Murthy, Minh-Duy Phan, Kate M Peters, Nguyen Thi Khanh Nhu, Rodney A Welch, Glen C Ulett, Mark A Schembri, Matthew J Sweet
Uropathogenic E. coli (UPEC) causes the majority of urinary tract infections (UTIs), which are a major global public health concern. UPEC uses numerous mechanisms to subvert the innate immune system, including targeting macrophage functions. We recently showed that some UPEC strains rapidly kill human macrophages via an NLRP3-independent pathway, and also trigger NLRP3-dependent IL-1β processing. In this study, we used random transposon mutagenesis in the reference strain CFT073 to identify UPEC genes that mediate human macrophage cell death...
April 23, 2018: Virulence
https://www.readbyqxmd.com/read/29683527/modulation-of-allergic-responses-by-mitochondrial-stat3-inhibitors
#8
Tal Erlich, Israa Sharkia, Nadine Landolina, Miri Assayag, Omer Goldberger, Neville Berkman, Francesca Levi-Schafer, Ehud Razin
Recently we have shown that mast cell mitochondrial STAT3 could serve as a new target for the regulation of the allergic response as it plays an essential role in immunologically-mediated degranulation of mast cells. In the present work, we explored how two recently developed mitochondrial STAT3 inhibitors (Mitocur-1 and Mitocur-3) modulate the allergic response. Here we show that treatment of rodent and human cultured mast cells with low concentrations of mitochondrial STAT3 inhibitors had no effect on STAT3 target gene expression...
April 23, 2018: Allergy
https://www.readbyqxmd.com/read/29683387/primary-transcriptome-analysis-reveals-importance-of-is-elements-for-the-shaping-of-the-transcriptional-landscape-of-bordetella-pertussis
#9
Fabian Amman, Alexandre D'Halluin, Rudy Antoine, Ludovic Huot, Ilona Bibova, Kristina Keidel, Stéphanie Slupek, Peggy Bouquet, Loïc Coutte, Ségolène Caboche, Camille Locht, Branislav Vecerek, David Hot
Bordetella pertussis is the causative agent of whooping cough, a respiratory disease still considered as a major public health threat and for which recent re-emergence has been observed. Constant reshuffling of Bordetella pertussis genome organization was observed during evolution. These rearrangements are essentially mediated by Insertion Sequences (IS), a mobile genetic elements present in more than 230 copies in the genome, which are supposed to be one of the driving forces enabling the pathogen to escape from vaccine-induced immunity...
April 23, 2018: RNA Biology
https://www.readbyqxmd.com/read/29682634/commentary-mir-132-212-modulates-seasonal-adaptation-and-dendritic-morphology-of-the-central-circadian-clock
#10
Lucia Mendoza-Viveros, Karl Obrietan, Hai-Ying M Cheng
Daily rhythms in behavior and physiology are coordinated by an endogenous clock located in the suprachiasmatic nucleus (SCN) of the hypothalamus. This central pacemaker also relays day length information to allow for seasonal adaptation, a process for which melatonin signaling is essential. How the SCN encodes day length is not fully understood. MicroRNAs (miRNAs) are small, non-coding RNAs that regulate gene expression by directing target mRNAs for degradation or translational repression. The miR-132/212 cluster plays a key role in facilitating neuronal plasticity, and miR-132 has been shown previously to modulate resetting of the central clock...
2018: Journal of Neurology & Neuromedicine
https://www.readbyqxmd.com/read/29682184/canonical-nf-%C3%AE%C2%BAb-signaling-in-myeloid-cells-promotes-lung-metastasis-in-a-mouse-breast-cancer-model
#11
Tobias Neumann, Özge Canli, Florian R Greten
An inflammatory tumor microenvironment is a common characteristic of solid tumors. It is the result of a complex interplay between tumor cells, tumor infiltrating immune cells and other stromal cells. Myeloid cells in the tumor microenvironment are considered major drivers of tumor progression and metastasis and increased numbers of these cells are associated with poor prognosis in various cancer patients. The transcription factor NF-κB is considered the master regulator of inflammatory gene expression and immune cell function...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29682085/prostaglandin-e-2-produced-by-alginate-encapsulated-mesenchymal-stromal-cells-modulates-the-astrocyte-inflammatory-response
#12
Elizabeth C Stucky, Joshua Erndt-Marino, Rene S Schloss, Martin L Yarmush, David I Shreiber
Astroglia are well known for their role in propagating secondary injury following brain trauma. Modulation of this injury cascade, including inflammation, is essential to repair and recovery. Mesenchymal stromal cells (MSCs) have been demonstrated as trophic mediators in several models of secondary CNS injury, however, there has been varied success with the use of direct implantation due to a failure to persist at the injury site. To achieve sustained therapeutic benefit, we have encapsulated MSCs in alginate microspheres and evaluated the ability of these encapsulated MSCs to attenuate neuro-inflammation...
June 2017: Nano LIFE
https://www.readbyqxmd.com/read/29681895/metabolic-and-evolutionary-insights-in-the-transformation-of-diphenylamine-by-a-pseudomonas-putida-strain-unravelled-by-genomic-proteomic-and-transcription-analysis
#13
Evangelia S Papadopoulou, Chiara Perruchon, Sotirios Vasileiadis, Constantina Rousidou, Georgia Tanou, Martina Samiotaki, Athanassios Molassiotis, Dimitrios G Karpouzas
Diphenylamine (DPA) is a common soil and water contaminant. A Pseudomonas putida strain, recently isolated from a wastewater disposal site, was efficient in degrading DPA. Thorough knowledge of the metabolic capacity, genetic stability and physiology of bacteria during biodegradation of pollutants is essential for their future industrial exploitation. We employed genomic, proteomic, transcription analyses and plasmid curing to (i) identify the genetic network of P. putida driving the microbial transformation of DPA and explore its evolution and origin and (ii) investigate the physiological response of bacterial cells during degradation of DPA...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29681853/caffeine-promotes-conversion-of-palmitic-acid-to-palmitoleic-acid-by-inducing-expression-of-fat-5-in-caenorhabditis-elegans-and-scd1-in-mice
#14
Xiaocui Du, Qin Huang, Yun Guan, Ming Lv, Xiaofang He, Chongye Fang, Xuanjun Wang, Jun Sheng
The synthesis and metabolism of fatty acids in an organism is related to many biological processes and is involved in several diseases. The effects of caffeine on fatty acid synthesis and fat storage in Caenorhabditis elegans and mice were studied. After 6 h of food deprivation, adult C. elegans were treated with 0.1 mg/mL caffeine for 24 h. Quantitative reverse-transcription polymerase chain reaction showed that, among all the genes involved in fat accumulation, the mRNA expression of fat-5 in caffeine-treated C...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29681092/lipt1-deficiency-presenting-as-early-infantile-epileptic-encephalopathy-leigh-disease-and-secondary-pyruvate-dehydrogenase-complex-deficiency
#15
Robert C Stowe, Qin Sun, Sarah H Elsea, Fernando Scaglia
Lipoic acid is an essential cofactor for the mitochondrial 2-ketoacid dehydrogenase complexes and the glycine cleavage system. Lipoyltransferase 1 catalyzes the covalent attachment of lipoate to these enzyme systems. Pathogenic variants in LIPT1 gene have recently been described in four patients from three families, commonly presenting with severe lactic acidosis resulting in neonatal death and/or poor neurocognitive outcomes. We report a 2-month-old male with severe lactic acidosis, refractory status epilepticus, and brain imaging suggestive of Leigh disease...
May 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29680944/effect-of-terbinafine-on-the-biosynthetic-pathway-of-isoprenoid-compounds-in-carrot-suspension-cultured-cells
#16
Begoña Miras-Moreno, Lorena Almagro, María Angeles Pedreño, Ana Belén Sabater-Jara
Terbinafine induced a significant increase of squalene production. Terbinafine increased the expression levels of squalene synthase. Cyclodextrins did not work as elicitors due to the gene expression levels obtained. Plant sterols are essential components of membrane lipids, which contributing to their fluidity and permeability. Besides their cholesterol-lowering properties, they also have anti-inflammatory, antidiabetic and anticancer activities. Squalene, which is phytosterol precursor, is widely used in medicine, foods and cosmetics due to its anti-tumor, antioxidant and anti-aging activities...
April 21, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29680930/splicing-mutations-in-human-genetic-disorders-examples-detection-and-confirmation
#17
REVIEW
Abramowicz Anna, Gos Monika
Precise pre-mRNA splicing, essential for appropriate protein translation, depends on the presence of consensus "cis" sequences that define exon-intron boundaries and regulatory sequences recognized by splicing machinery. Point mutations at these consensus sequences can cause improper exon and intron recognition and may result in the formation of an aberrant transcript of the mutated gene. The splicing mutation may occur in both introns and exons and disrupt existing splice sites or splicing regulatory sequences (intronic and exonic splicing silencers and enhancers), create new ones, or activate the cryptic ones...
April 21, 2018: Journal of Applied Genetics
https://www.readbyqxmd.com/read/29680659/tracing-the-dynamic-expression-of-the-nf%C3%AE%C2%BAb2-gene-during-inflammatory-processes-by-in-vivo-bioluminescence-imaging-in-transgenic-mice
#18
Xingyu Yang, Ruilin Sun, Lei Ci, Ning Wang, Sai Yang, Jiahao Shi, Hua Yang, Mengjie Zhang, Jian Fei
Nfκb2(p52/p100) plays essential roles in many chronic inflammatory diseases. Tracing the dynamic expression of Nfκb2 during different biological processes in vivo can provide valuable clues to understand the biological functions of this gene and develop anti-inflammatory drugs. In this study, B6-Tg(Nfκb2-luc)Mlit transgenic mouse line, a mouse model in which the expression of firefly luciferase gene is under the control of a 14.6-kb mouse Nfκb2 promoter, was generated to monitor the expression of p52/p100 in vivo...
April 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29680649/an-initiator-codon-mutation-in-sde2-causes-recessive-embryonic-lethality-in-holstein-cattle
#19
Sébastien Fritz, Chris Hoze, Emmanuelle Rebours, Anne Barbat, Méline Bizard, Amanda Chamberlain, Clémentine Escouflaire, Christy Vander Jagt, Mekki Boussaha, Cécile Grohs, Aurélie Allais-Bonnet, Maëlle Philippe, Amélie Vallée, Yves Amigues, Benjamin J Hayes, Didier Boichard, Aurélien Capitan
Researching depletions in homozygous genotypes for specific haplotypes among the large cohorts of animals genotyped for genomic selection is a very efficient strategy to map recessive lethal mutations. In this study, by analyzing real or imputed Illumina BovineSNP50 (Illumina Inc., San Diego, CA) genotypes from more than 250,000 Holstein animals, we identified a new locus called HH6 showing significant negative effects on conception rate and nonreturn rate at 56 d in at-risk versus control mating. We fine-mapped this locus in a 1...
April 18, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29680640/overexpression-of-srebf-chaperone-scap-enhances-nuclear-srebp1-translocation-to-upregulate-fatty-acid-synthase-fasn-gene-expression-in-bovine-mammary-epithelial-cells
#20
L Q Han, T Y Gao, G Y Yang, J J Loor
Fatty acid synthase is a key enzyme for the synthesis of milk fat in the ruminant mammary gland. In nonruminants, sterol regulatory element binding protein 1 (SREBP1) is a regulator of FASN gene expression, and SREBF chaperone (SCAP) is essential for SREBP1 maturation and activity. However, the role of SCAP on the regulation of FASN gene expression in ruminants is unknown. The objective of this study was to investigate the transcriptional regulation of FASN by overexpressing SCAP in bovine mammary epithelial cells...
April 18, 2018: Journal of Dairy Science
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