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https://www.readbyqxmd.com/read/28736241/oxytocin-release-via-activation-of-trpm2-and-cd38-in-the-hypothalamus-during-hyperthermia-in-mice-implication-for-autism-spectrum-disorder
#1
REVIEW
Haruhiro Higashida, Teruko Yuhi, Shirin Akther, Sarwat Amina, Jing Zhong, Mingkun Liang, Tomoko Nishimura, Hong-Xiang Liu, Olga Lopatina
Oxytocin (OT) is a critical molecule for social recognition that mediates social and emotional behaviors. OT is released during stress and acts as an anxiolytic factor. To know the precise molecular mechanisms underlying OT release into the brain during stress is important. It has been reported that intracellular concentrations of free calcium in the hypothalamic neurons are elevated by simultaneous stimulation of cyclic ADP-ribose (cADPR) and heat. We have reported in vitro and in vivo data that supports the idea that release of OT in the brain of male mice is regulated by cADPR and fever in relation to stress conditions...
July 20, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28735111/screening-disrupted-molecular-functions-and-pathways-associated-with-clear-cell-renal-cell-carcinoma-using-gibbs-sampling
#2
Ning Nan, Qi Chen, Yu Wang, Xu Zhai, Chuan-Ce Yang, Bin Cao, Tie Chong
OBJECTIVE: To explore the disturbed molecular functions and pathways in clear cell renal cell carcinoma (ccRCC) using Gibbs sampling. METHODS: Gene expression data of ccRCC samples and adjacent non-tumor renal tissues were recruited from public available database. Then, molecular functions of expression changed genes in ccRCC were classed to Gene Ontology (GO) project, and these molecular functions were converted into Markov chains. Markov chain Monte Carlo (MCMC) algorithm was implemented to perform posterior inference and identify probability distributions of molecular functions in Gibbs sampling...
July 13, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28733449/mitochondrial-function-in-engineered-cardiac-tissues-is-co-regulated-by-extracellular-matrix-elasticity-and-tissue-alignment
#3
Davi Marco Lyra-Leite, Allen Mariano Andres, Andrew Patrick Petersen, Nethika Ruvini Ariyasinghe, Nathan Cho, Jezell Athena Lee, Roberta A Gottlieb, Megan L McCain
Mitochondria in cardiac myocytes are critical for generating ATP to meet the high metabolic demands associated with sarcomere shortening. Distinct remodeling of mitochondrial structure and function occur in cardiac myocytes in both developmental and pathological settings. However, the factors that underlie these changes are poorly understood. Because remodeling of tissue architecture and extracellular matrix (ECM) elasticity are also hallmarks of ventricular development and disease, we hypothesize that these environmental factors regulate mitochondrial function in cardiac myocytes...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28732057/structural-basis-of-zn-ii-induced-metal-detoxification-and-antibiotic-resistance-by-histidine-kinase-czcs-in-pseudomonas-aeruginosa
#4
Dan Wang, Weizhong Chen, Shanqing Huang, Yafeng He, Xichun Liu, Qingyuan Hu, Tianbiao Wei, Hong Shang, Jianhua Gan, Hao Chen
Pseudomonas aeruginosa (P. aeruginosa) is a major opportunistic human pathogen, causing serious nosocomial infections among immunocompromised patients by multi-determinant virulence and high antibiotic resistance. The CzcR-CzcS signal transduction system in P. aeruginosa is primarily involved in metal detoxification and antibiotic resistance through co-regulating cross-resistance between Zn(II) and carbapenem antibiotics. Although the intracellular regulatory pathway is well-established, the mechanism by which extracellular sensor domain of histidine kinase (HK) CzcS responds to Zn(II) stimulus to trigger downstream signal transduction remains unclear...
July 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28727895/how-to-become-a-killer-or-is-it-all-accidental-virulence-strategies-in-oral-streptococci
#5
Izabela Sitkiewicz
Streptococci are a diverse group of gram positive microorganisms sharing common virulence traits and similar strategies to escape the oral niche and establish an infection in other parts of the host organism. Invasive infection with oral streptococci is "a perfect storm" that requires the concerted action of multiple biotic and abiotic factors. Our understanding of streptococcal pathogenicity and infectivity should probably be less mechanistic and driven not only by the identification of novel virulence factors...
July 20, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28724751/tomo-seq-identifies-sox9-as-a-key-regulator-of-cardiac-fibrosis-during-ischemic-injury
#6
Grégory P A Lacraz, Jan Philipp Junker, Monika M Gladka, Bas Molenaar, Koen T Scholman, Marta Vigil-Garcia, Danielle Versteeg, Hesther de Ruiter, Marit W Vermunt, Menno P Creyghton, Manon M H Huibers, Nicolaas de Jonge, Alexander van Oudenaarden, Eva van Rooij
Background -Cardiac ischemic injury induces a pathological remodeling response, which can ultimately lead to heart failure. Detailed mechanistic insights into molecular signaling pathways relevant for different aspects of cardiac remodeling will support the identification of novel therapeutic targets. Methods -While genome-wide transcriptome analysis on diseased tissues has greatly advanced our understanding of the regulatory networks that drive pathological changes in the heart, this approach has been disadvantaged by the fact that the signals are derived from tissue homogenates...
July 19, 2017: Circulation
https://www.readbyqxmd.com/read/28723234/flexible-small-molecular-anti-estrogens-with-n-n-dialkylated-2-5-diethoxy-4-morpholinoaniline-scaffold-targets-multiple-estrogen-receptor-conformations
#7
Bethany K Asare, Emmanuel Yawson, Rajendram V Rajnarayanan
Estrogen mediates various cellular processes including cell proliferation, differentiation, growth and mammary gland function. Estrogen Receptors (ERs) are expressed in 70% of breast cancers. Consequently, estrogen mediated ER signaling plays a critical role in breast cancer diagnosis, prognosis, and treatment. Estrogen Receptors are ligand-triggered transcription factors. However, in the absence of a cognate estrogenic ligand, ERs can be activated by a variety of other extracellular signals. Tamoxifen, an anti-estrogen that selectively targets ER, induces substantial regression of breast tumors and an increase in disease-free survival...
July 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28716689/brg1-and-smarcal1-transcriptionally-co-regulate-drosha-dgcr8-and-dicer-in-response-to-doxorubicin-induced-dna-damage
#8
Ketki Patne, Radhakrishnan Rakesh, Vijendra Arya, Upasana Bedi Chanana, Ramesh Sethy, Pynskhem Bok Swer, Rohini Muthuswami
Recent investigations have emphasized the role of miRNA biogenesis proteins in the synthesis of non-coding RNA when double-strand DNA breaks are induced by ionizing radiations. However, the role of these ncRNA and their regulation in response to doxorubicin-induced DNA damage is not known. In this paper, BRG1 and SMARCAL1, members of the ATP-dependent chromatin remodelling family, are shown to co-regulate the transcription of DROSHA, DGCR8, and DICER in response to double-strand DNA breaks induced by doxorubicin...
July 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28716421/dual-functioning-of-plant-arginases-provides-a-third-route-for-putrescine-synthesis
#9
Jigar Patel, Menaka Ariyaratne, Sheaza Ahmed, Lingxiao Ge, Vipaporn Phuntumart, Andrea Kalinoski, Paul F Morris
Two biosynthetic routes are known for putrescine, an essential plant metabolite. Ornithine decarboxylase (ODC) converts ornithine directly to putrescine, while a second route for putrescine biosynthesis utilizes arginine decarboxylase (ADC) to convert arginine to agmatine, and two additional enzymes, agmatine iminohydrolase (AIH) and N-carbamoyl putrescine aminohydrolase (NLP1) to complete this pathway. Here we show that plants can use ADC and arginase/agmatinase (ARGAH) as a third route for putrescine synthesis...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28713998/identification-of-micrornas-in-acute-respiratory-distress-syndrome-based-on-microrna-expression-profile-in-rats
#10
Yinghui Guan, Xiang Jin, Xingang Liu, Yuanping Huang, Man Wang, Xiaodan Li
Acute respiratory distress syndrome (ARDS) remains a severe disease associated with an ~40% mortality rate and as many as 200,000 new cases annually. MicroRNAs (miRNAs) have important roles in gene regulation and cancer development. The present study aimed to identify the potential roles of miRNAs in the pathogenesis and progression of ARDS. The miRNA expression profile of the GSE57223 dataset was downloaded from the Gene Expression Omnibus database. Following data normalization, differentially expressed miRNAs were identified using the t‑test method...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713396/system-level-and-granger-network-analysis-of-integrated-proteomic-and-metabolomic-dynamics-identifies-key-points-of-grape-berry-development-at-the-interface-of-primary-and-secondary-metabolism
#11
Lei Wang, Xiaoliang Sun, Jakob Weiszmann, Wolfram Weckwerth
Grapevine is a fruit crop with worldwide economic importance. The grape berry undergoes complex biochemical changes from fruit set until ripening. This ripening process and production processes define the wine quality. Thus, a thorough understanding of berry ripening is crucial for the prediction of wine quality. For a systemic analysis of grape berry development we applied mass spectrometry based platforms to analyse the metabolome and proteome of Early Campbell at 12 stages covering major developmental phases...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28709027/singlet-oxygen-triggers-chloroplast-rupture-and-cell-death-in-the-zeaxanthin-epoxidase-defective-mutant-aba1-of-arabidopsis-thaliana-under-high-light-stress
#12
Álvaro Sánchez-Corrionero, Inmaculada Sánchez-Vicente, Sergio González-Pérez, Ascensión Corrales, Anja Krieger-Liszkay, Óscar Lorenzo, Juan B Arellano
The two Arabidopsis thaliana mutants, aba1 and max4, were previously identified as sharing a number of co-regulated genes with both the flu mutant and Arabidopsis cell suspension cultures exposed to high light (HL). On this basis, we investigated whether aba1 and max4 were generating high amounts of singlet oxygen ((1)O2) and activating (1)O2-mediated cell death. Thylakoids of aba1 produced twice as much (1)O2 as thylakoids of max4 and wild type (WT) plants when illuminated with strong red light. (1)O2 was measured using the spin probe 2,2,6,6-tetramethyl-4-piperidone hydrochloride...
July 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28705894/genome-wide-analysis-of-facial-skeletal-regionalization-in-zebrafish
#13
Amjad Askary, Pengfei Xu, Lindsey Barske, Maxwell Bay, Paul Bump, Bartosz Balczerski, Michael A Bonaguidi, J Gage Crump
Patterning of the facial skeleton involves the precise deployment of thousands of genes in distinct regions of the pharyngeal arches. Despite the significance for craniofacial development, how genetic programs drive this regionalization remains incompletely understood. Here we use combinatorial labeling of zebrafish cranial neural crest-derived cells (CNCCs) to define global gene expression along the dorsoventral axis of the developing arches. Intersection of region-specific transcriptomes with expression changes in response to signaling perturbations demonstrates complex roles for Endothelin1 (Edn1) signaling in the intermediate joint-forming region, yet a surprisingly minor role in ventral-most regions...
July 13, 2017: Development
https://www.readbyqxmd.com/read/28705662/transcriptional-response-of-the-extremophile-red-alga-cyanidioschyzon-merolae-to-changes-in-co2-concentrations
#14
Nadine Rademacher, Thomas J Wrobel, Alessandro W Rossoni, Samantha Kurz, Andrea Bräutigam, Andreas P M Weber, Marion Eisenhut
Cyanidioschyzon merolae (C. merolae) is an acidophilic red alga growing in a naturally low carbon dioxide (CO2) environment. Although it uses a ribulose 1,5-bisphosphate carboxylase/oxygenase with high affinity for CO2, the survival of C. merolae relies on functional photorespiratory metabolism. In this study, we quantified the transcriptomic response of C. merolae to changes in CO2 conditions. We found distinct changes upon shifts between CO2 conditions, such as a concerted up-regulation of photorespiratory genes and responses to carbon starvation...
July 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28702326/rev-erb-co-regulates-muscle-regeneration-via-tethered-interaction-with-the-nf-y-cistrome
#15
Ryan D Welch, Chun Guo, Monideepa Sengupta, Katherine J Carpenter, Natalie A Stephens, Stacy A Arnett, Marvin J Meyers, Lauren M Sparks, Steven R Smith, Jinsong Zhang, Thomas P Burris, Colin A Flaveny
OBJECTIVE: The loss of skeletal muscle mass and strength are a central feature of traumatic injury and degenerative myopathies. Unfortunately, pharmacological interventions typically fail to stem the long-term decline in quality of life. Reduced Rev-Erb-mediated gene suppression in cultured C2C12 myoblasts has been shown to stimulate myoblast differentiation. Yet the mechanisms that allow Rev-Erb to pleiotropically inhibit muscle differentiation are not well understood. In this study, we sought to elucidate the role of Rev-Erb in the regulation of muscle differentiation and regeneration in vivo...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28702038/neofusicoccum-parvum-colonization-of-the-grapevine-woody-stem-triggers-asynchronous-host-responses-at-the-site-of-infection-and-in-the-leaves
#16
Mélanie Massonnet, Rosa Figueroa-Balderas, Erin R A Galarneau, Shiho Miki, Daniel P Lawrence, Qiang Sun, Christopher M Wallis, Kendra Baumgartner, Dario Cantu
Grapevine trunk diseases cause important economic losses in vineyards worldwide. Neofusicoccum parvum, one of the most aggressive causal agents of the trunk disease Botryosphaeria dieback, colonizes cells and tissues of the grapevine wood, leading to the formation of an internal canker. Symptoms then extend to distal shoots, with wilting of leaves and bud mortality. Our aim was to characterize the transcriptional dynamics of grapevine genes in the woody stem and in the leaves during Neofusicoccum parvum colonization...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28701801/adipose-tissue-formation-utilizing-fat-flap-distraction-technique
#17
Myung Chul Lee, Won Jai Lee, Byung Il Lee, Kee Yang Chung, Jae Woo Kim, Eun Hye Kang, Yong Oock Kim
Co-regulation between adipocytes and supporting vasculature is considered an important process in adipose tissue generation. The objective of this study was to evaluate the mechanical and biological effects of a distraction technique on adipose tissue formation and maintenance. Based on the hypothesis that fat flaps gradually receding from each other can develop an adipose tissue construct, perforated polycarbonate syringe-shaped chambers were implanted in a rabbit model. Latency (1 week) and distraction (3 weeks) periods were followed by a consolidation period in the experimental groups (4, 8, and 12 weeks)...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698282/circulating-sex-steroids-co-regulate-adipose-tissue-immune-cell-populations-in-healthy-men
#18
Katya B Rubinow, Jing Chao, Derek Hagman, Mario Kratz, Brian Van Yserloo, Nilesh W Gaikwad, John K Amory, Stephanie T Page
Male hypogonadism results in changes in body composition characterized by increases in fat mass. Resident immune cells influence energy metabolism in adipose tissue and could promote increased adiposity through paracrine effects. We hypothesized that manipulation of circulating sex steroid levels in healthy men would alter adipose tissue immune cell populations. Subjects (n=44 men, 19-55 years of age) received 4 weeks of treatment with the GnRH receptor antagonist acyline with daily administration of 1) placebo gel, 2) 1...
July 11, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28694803/comparative-genomics-identifies-a-novel-conserved-protein-hpat-in-proteobacterial-type-iii-secretion-systems-that-do-not-possess-the-putative-translocon-protein-hrpf
#19
Céline Pesce, Jonathan M Jacobs, Edwige Berthelot, Marion Perret, Taca Vancheva, Claude Bragard, Ralf Koebnik
Xanthomonas translucens is the causal agent of bacterial leaf streak, the most common bacterial disease of wheat and barley. To cause disease, most xanthomonads depend on a highly conserved type III secretion system, which translocates type III effectors into host plant cells. Mutagenesis of the conserved type III secretion gene hrcT confirmed that the X. translucens type III secretion system is required to cause disease on the host plant barley and to trigger a non-host hypersensitive response (HR) in pepper leaves...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28694494/differential-co-expression-analysis-reveals-a-novel-prognostic-gene-module-in-ovarian-cancer
#20
Esra Gov, Kazim Yalcin Arga
Ovarian cancer is one of the most significant disease among gynecological disorders that women suffered from over the centuries. However, disease-specific and effective biomarkers were still not available, since studies have focused on individual genes associated with ovarian cancer, ignoring the interactions and associations among the gene products. Here, ovarian cancer differential co-expression networks were reconstructed via meta-analysis of gene expression data and co-expressed gene modules were identified in epithelial cells from ovarian tumor and healthy ovarian surface epithelial samples to propose ovarian cancer associated genes and their interactions...
July 10, 2017: Scientific Reports
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