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Sodium homeostasys

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https://www.readbyqxmd.com/read/28808878/role-of-intestinal-microbiome-in-american-ginseng-mediated-colon-cancer-protection-in-high-fat-diet-fed-aom-dss-mice
#1
C-Z Wang, W-H Huang, C-F Zhang, J-Y Wan, Y Wang, C Yu, S Williams, T-C He, W Du, M W Musch, E B Chang, C-S Yuan
OBJECTIVE: Chronic intestinal inflammation is a risk factor for colorectal cancer (CRC) initiation and development. Diets that are rich in Western style fats have been shown to promote CRC. This study was conducted to investigate the role of intestinal microbiome in American ginseng-mediated CRC chemoprevention in a mouse model. The population and diversity of enteric microbiome were evaluated after the ginseng treatment. METHODS: Using an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced gut inflammation and tumorigenesis mouse model, the effects of oral American ginseng on high fat diet-associated enteric pathology were determined...
August 14, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28808008/mathematical-model-reveals-role-of-nucleotide-signaling-in-airway-surface-liquid-homeostasis-and-its-dysregulation-in-cystic-fibrosis
#2
Conner I Sandefur, Richard C Boucher, Timothy C Elston
Mucociliary clearance is composed of three components (i.e., mucin secretion, airway surface hydration, and ciliary-activity) which function coordinately to clear inhaled microbes and other foreign particles from airway surfaces. Airway surface hydration is maintained by water fluxes driven predominantly by active chloride and sodium ion transport. The ion channels that mediate electrogenic ion transport are regulated by extracellular purinergic signals that signal through G protein-coupled receptors. These purinoreceptors and the signaling pathways they activate have been identified as possible therapeutic targets for treating lung disease...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28805727/leaf-physiological-and-proteomic-analysis-to-elucidate-silicon-induced-adaptive-response-under-salt-stress-in-rosa-hybrida-rock-fire
#3
Prabhakaran Soundararajan, Abinaya Manivannan, Chung Ho Ko, Sowbiya Muneer, Byoung Ryong Jeong
Beneficial effects of silicon (Si) on growth and development have been witnessed in several plants. Nevertheless, studies on roses are merely reported. Therefore, the present investigation was carried out to illustrate the impact of Si on photosynthesis, antioxidant defense and leaf proteome of rose under salinity stress. In vitro-grown, acclimatized Rosa hybrida 'Rock Fire' were hydroponically treated with four treatments, such as control, Si (1.8 mM), NaCl (50 mM), and Si+NaCl. After 15 days, the consequences of salinity stress and the response of Si addition were analyzed...
August 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28800174/curcumin-ameliorates-diclofenac-sodium-induced-nephrotoxicity-in-male-albino-rats
#4
Ahmady Y Ahmed, Amany M Gad, Ola M Abd El-Raouf
Exposure to drugs often results in toxicity in the kidney which represents the major control system maintaining homeostasis of the body and thus is especially susceptible to xenobiotics. Nephrotoxicity is a life-threatening side-effect of nonsteroidal anti-inflammatory drugs (NSAIDs). Diclofenac is one of the most frequently prescribed NSAIDs and have been reported to cause multiple organs damage. Curcumin (CUR) exhibits nephroprotective properties. Therefore, rats were divided into four groups; rats of groups 3 and 4 received diclofenac (100 mg/kg, i...
August 11, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28799261/serum-osmolarity-in-male-patients-with-bipolar-disorder-manic-episode
#5
Tevfik Kalelioglu, Nesrin Karamustafalioglu, Abdullah Genc, Murat Kocabiyik
Imbalance of water and electrolyte homeostasis has been suggested to be associated with the acute episodes of bipolar disorder. In this study we aimed to investigate, for the first time, the serum osmolarity in bipolar disorder manic episode. A total of 68 bipolar inpatients in manic episode and 60 age-gender matched healthy controls were included in the study. Serum osmolarity was calculated from Sodium (Na(+) ), glucose and blood urea nitrogen (BUN) according to formula of (2 × Na(+) ) + (BUN/2.8) + (Glucose/18)...
August 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28783698/maintenance-of-macrophage-transcriptional-programs-and-intestinal-homeostasis-by-epigenetic-reader-sp140
#6
Stuti Mehta, D Alexander Cronkite, Megha Basavappa, Tahnee L Saunders, Fatemeh Adiliaghdam, Hajera Amatullah, Sara A Morrison, Jose D Pagan, Robert M Anthony, Pierre Tonnerre, Georg M Lauer, James C Lee, Sreehaas Digumarthi, Lorena Pantano, Shannan J Ho Sui, Fei Ji, Ruslan Sadreyev, Chan Zhou, Alan C Mullen, Vinod Kumar, Yang Li, Cisca Wijmenga, Ramnik J Xavier, Terry K Means, Kate L Jeffrey
Epigenetic "readers" that recognize defined posttranslational modifications on histones have become desirable therapeutic targets for cancer and inflammation. SP140 is one such bromodomain- and plant homeodomain (PHD)-containing reader with immune-restricted expression, and single-nucleotide polymorphisms (SNPs) within SP140 associate with Crohn's disease (CD). However, the function of SP140 and the consequences of disease-associated SP140 SNPs have remained unclear. We show that SP140 is critical for transcriptional programs that uphold the macrophage state...
March 3, 2017: Science Immunology
https://www.readbyqxmd.com/read/28782494/the-role-of-proprotein-convertase-subtilisin-kexin-type-9-pcsk9-in-cardiovascular-homeostasis-a-non-systematic-literature-review
#7
Ahmad Hachem, Essa Hariri, Perla Saoud, Christelle Lteif, Louis Lteif, Francine Welty
Proprotein convertase subtilisin/kexin type 9 (PCSK9) has been gaining major attention recently after the emergence of data showing the promising role of these proteins in lipid homeostasis and atherosclerosis process, glucose and blood pressure regulation. PubMed, EMBASE, Scholar and Scopus databases were searched to identify randomized controlled trials, observational studies, in-vitro trials and reviews about the role of PCSK9 in cardiovascular homeostasis. PCSK9 was found to have major impact on lipid homeostasis and inflammatory process through regulation of low-density lipoprotein receptors...
August 4, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/28775098/influenza-virus-infection-alters-ion-channel-function-of-airway-and-alveolar-cells-mechanisms-and-physiological-sequelae
#8
James D Londino, Ahmed Lazrak, James F Collawn, Zsuzsanna Bebok, Kevin S Harrod, Sadis Matalon
The cystic fibrosis transmembrane conductance regulator (CFTR) and the amiloride-sensitive epithelial sodium channels (ENaC) are located in the apical membranes of airway and alveolar epithelial cells. These transporters play an important role in the regulation of lung fluid balance across airway and alveolar epithelia by being the conduits for chloride (Cl(-)) and bicarbonate (HCO3(-)) secretion and sodium (Na(+)) ion absorption, respectively. The functional role of these channels in the respiratory tract is to maintain the optimum volume and ionic composition of the bronchial pericilary fluid (PCL) and alveolar lining fluid (ALF) layers...
August 3, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28772209/renin-angiotensin-aldosterone-raas-the-ubiquitous-system-for-homeostasis-and-pathologies
#9
Seema Patel, Abdur Rauf, Haroon Khan, Tareq Abu-Izneid
Renin-angiotensin-aldosterone system (RAAS) is a vital system of human body, as it maintains plasma sodium concentration, arterial blood pressure and extracellular volume. Kidney-secreted renin enzyme acts on its substrate to form angiotensin II, a versatile effector peptide hormone. Every organ is affected by RAAS activation and the resultant hypertension, cell proliferation, inflammation, and fibrosis. The imbalance of renin and angiotensin II can result in an overwhelming number of chronic and acute diseases...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28771454/%C3%AE-ketoglutarate-drives-electroneutral-nacl-reabsorption-in-intercalated-cells-by-activating-a-g-protein-coupled-receptor-oxgr1
#10
Paul R Grimm, Paul A Welling
PURPOSE OF REVIEW: This review describes the recent discoveries about a powerful electroneutral NaCl reabsorption mechanism in intercalated cells, and its regulation by an intrarenal metabolite paracrine, α-ketoglutartate, and the G-protein coupled receptor, Oxgr1. RECENT FINDINGS: The distal nephron fine-tunes sodium, chloride, potassium, hydrogen, bicarbonate and water transport to maintain electrolyte homeostasis and blood pressure. Intercalated cells have been traditionally viewed as the professional regulators of acid-base balance, but recent studies reveal that a specific population of intercalated cells, identified by the pendrin-transporter, have a surprising role in the regulation of salt balance...
September 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28763637/sodium-fluoride-adversely-affects-ovarian-development-and-reproduction-in-drosophila-melanogaster
#11
Salma Khatun, Prem Rajak, Moumita Dutta, Sumedha Roy
The study demonstrates the effects of chronic sub-lethal exposure of sodium fluoride (NaF) on reproductive structure and function of female Drosophila melanogaster. As a part of treatment, flies were maintained in food supplemented with sub-lethal concentrations of NaF (10-100 μg/mL). Fecundity, ovarian morphology, presence and profusion of viable cells from ovary and fat body were taken into consideration for evaluating changes in reproductive homeostasis. Wing length (a factor demonstrating body size and reproductive fitness) was also monitored after NaF exposure...
July 29, 2017: Chemosphere
https://www.readbyqxmd.com/read/28760221/approaching-to-dm2-through-sodium-glucose-cotransporter-2-does-it-make-sense
#12
Julián Segura
The kidney is involved in glucose homeostasis through three main mechanisms: renal gluconeogenesis, renal glucose consumption and glucose reabsorption in the proximal tubule. Glucose reabsorption is one of the most relevant physiological functions of the kidney, through which filtered glucose is fully recovered, urine is free of glucose, and calorie loss is prevented. Approximately 90% of the glucose is reabsorbed in the S1 segment of the proximal tubule, where GLUT2 and SGLT2 transporters are located, while the remaining 10% is reabsorbed in the S3 segment by SGLT1 and GLUT1 transporters...
November 2016: Medicina Clínica
https://www.readbyqxmd.com/read/28759755/the-roles-of-sodium-glucose-cotransporter-2-inhibitors-in-preventing-kidney-injury-in-diabetes
#13
REVIEW
Krit Jaikumkao, Anchalee Pongchaidecha, Varanuj Chatsudthipong, Siriporn C Chattipakorn, Nipon Chattipakorn, Anusorn Lungkaphin
Diabetic nephropathy (DN) is the leading cause of end stage renal disease (ESRD) worldwide. The early effective treatment of high plasma glucose could delay or prevent the onset of DN. Sodium-glucose cotransporter 2 (SGLT2) inhibitors are new target treatments for ameliorating high plasma glucose and help to maintain glucose homeostasis in diabetic patients. Reduced renal glucose reabsorption by SGLT2 inhibition seems to have high potential to improve glycemic control in diabetes mellitus (DM) not only through glucose lowering but also through glucose-independent effects such as blood pressure-lowering and direct renal effects in diabetes...
July 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28755400/mapping-the-in-vitro-interactome-of-cardiac-sodium-na-calcium-ca-2-exchanger-1-ncx1
#14
Tandekile Lubelwana Hafver, Pimthanya Wanichawan, Ornella Manfra, Gustavo Antonio de Souza, Marianne Lunde, Marita Martinsen, William Edward Louch, Ole Mathias Sejersted, Cathrine Rein Carlson
NCX1 is an antiporter membrane protein encoded by the SLC8A1 gene. In the heart, it maintains cytosolic Ca(2+) homeostasis, serving as the primary mechanism for Ca(2+) extrusion during relaxation. Dysregulation of NCX1 is observed in end-stage human heart failure. In this study we used affinity purification coupled with mass spectrometry in rat left ventricle lysates to identify novel NCX1 interacting proteins in the heart. Two screens were conducted using: 1) anti-NCX1 against endogenous NCX1 and 2) anti-His with His-TF-NCX1cyt recombinant protein as bait...
July 28, 2017: Proteomics
https://www.readbyqxmd.com/read/28751723/hydrogen-sulphide-donors-selectively-potentiate-a-green-tea-polyphenol-egcg-induced-apoptosis-of-multiple-myeloma-cells
#15
Jaehoon Bae, Motofumi Kumazoe, Shuya Yamashita, Hirofumi Tachibana
Hydrogen sulphide (H2S) is a colourless gas with the odour of rotten eggs and has recently been recognized as a signal mediator in physiological activities related with the regulation of homeostasis, the vascular system and the inflammatory system. Here we show that H2S donors, including sodium hydrogen sulphide (NaHS), GYY 4137 and diallyltrisulfide (DATS), synergistically enhanced the anti-cancer effect of a green tea polyphenol (-)-epigallocatechin-3-O-gallate (EGCG) against multiple myeloma cells without affecting normal cells...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28735082/aeromonas-caviae-alters-the-cytosolic-and-mitochondrial-creatine-kinase-activities-in-experimentally-infected-silver-catfish-impairment-on-renal-bioenergetics
#16
Matheus D Baldissera, Carine F Souza, Guerino B Júnior, Camila Marina Verdi, Karen L S Moreira, Maria Izabel U M da Rocha, Marcelo L da Veiga, Roberto C V Santos, Bruno S Vizzotto, Bernardo Baldisserotto
Cytosolic and mitochondrial creatine kinases (CK), through the creatine kinase-phosphocreatine (CK/PCr) system, provide a temporal and spatial energy buffer to maintain cellular energy homeostasis. However, the effects of bacterial infections on the kidney remain poorly understood and are limited only to histopathological analyses. Thus, the aim of this study was to investigate the involvement of cytosolic and mitochondrial CK activities in renal energetic homeostasis in silver catfish experimentally infected with Aeromonas caviae...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28733328/thermal-imprinting-modifies-bone-homeostasis-in-cold-challenged-sea-bream-sparus-aurata-l
#17
Ana Patrícia Mateus, Rita Costa, Enric Gisbert, Patricia I S Pinto, Karl B Andree, Alicia Estévez, Deborah M Power
Fish are ectotherms and temperature plays a determinant role in their physiology, biology and ecology and is a driver of seasonal responses. The present study assessed how thermal imprinting during embryonic and larval stages modified the response of adult fish to low water temperature. We targeted the gilthead sea bream that develops a condition known as winter syndrome when it is exposed to low water temperatures. Eggs and larvae of sea bream were exposed to four different thermal regimes and then the response of the resulting adults to a low temperature challenge was assessed...
July 21, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28727929/na-h-exchanger-and-proton-channel-in-heart-failure-associated-with-becker-and-duchenne-muscular-dystrophy
#18
Ghassan Bkaily, Danielle Jacques
Cardiomyopathy is found in patients with Duchenne (DMD) and Becker (BMD) muscular dystrophies which are linked muscle diseases caused by mutations in the dystrophin gene. Dystrophin defects are not limited to DMD but are also present in mild BMD. The hereditary cardiomyopathic hamster of the UM-X7.1 strain is a particular experimental model of heart failure (HF) leading to early death in muscular dystrophy (dystrophin deficiency and sarcoglycan mutation) and heart disease (δ-sarcoglycan deficiency and dystrophin mutation) in human DMD...
July 20, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28719807/evaluation-of-a-novel-radiotracer-for-positron-emission-tomography-imaging-of-reactive-oxygen-species-in-the-central-nervous-system
#19
Alan A Wilson, Oleg Sadovski, José N Nobrega, Roger J Raymond, Francis R Bambico, Mina G Nashed, Armando Garcia, Peter M Bloomfield, Sylvain Houle, Romina Mizrahi, Junchao Tong
INTRODUCTION: Few, if any, radiotracers are available for the in vivo imaging of reactive oxygen species (ROS) in the central nervous system. ROS play a critical role in normal cell processes such as signaling and homeostasis but overproduction of ROS is implicated in several disorders. We describe here the radiosynthesis and initial ex vivo and in vivo evaluation of [(11)C]hydromethidine ([(11)C]HM) as a radiotracer to image ROS using positron emission tomography (PET). METHODS: [(11)C]HM and its deuterated isotopologue [(11)C](4) were produced using [(11)C]methyl triflate in a one-pot, two-step reaction and purified by high performance liquid chromatography...
June 1, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28710114/circadian-rhythm-disruption-impairs-tissue-homeostasis-and-exacerbates-chronic-inflammation-in-the-intestine
#20
René Pagel, Florian Bär, Torsten Schröder, Annika Sünderhauf, Axel Künstner, Saleh M Ibrahim, Stella E Autenrieth, Kathrin Kalies, Peter König, Anthony H Tsang, Dominik Bettenworth, Senad Divanovic, Hendrik Lehnert, Klaus Fellermann, Henrik Oster, Stefanie Derer, Christian Sina
Endogenous circadian clocks regulate 24 h rhythms of physiology and behavior. Circadian rhythm disruption (CRD) is suggested as a risk factor for inflammatory bowel disease. However, the underlying molecular mechanisms remain unknown. Intestinal biopsies from Per1/2 mutant and wild-type (WT) mice were investigated by electron microscopy, immunohistochemistry, and bromodeoxyuridine pulse-chase experiments. TNF-α was injected intraperitoneally, with or without necrostatin-1, into Per1/2 mice or rhythmic and externally desynchronized WT mice to study intestinal epithelial cell death...
July 14, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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