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Sodium & water balance

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https://www.readbyqxmd.com/read/29154936/antidiabetic-and-antiobesity-effects-of-sglt2-inhibitor-ipragliflozin-in-type-2-diabetic-mice-fed-sugar-solution
#1
Atsuo Tahara, Toshiyuki Takasu, Masanori Yokono, Masakazu Imamura, Eiji Kurosaki
Obesity due to excessive calorie intake is a known aggravating factor contributing to the development and progression of type 2 diabetes. Recently, excessive intake of sugar-sweetened beverages has presented challenges in stemming the tide of obesity. Here, we investigated the possible effects of sugar solution intake on the antidiabetic effects of sodium-glucose cotransporter 2 (SGLT2) inhibitor ipragliflozin in type 2 diabetic mice that were fed ordinary drinking water, water + glucose solution, or water + sucrose solution...
November 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29140136/salt-glycerol-induced-hyperhydration-enhances-fluid-retention-more-than-salt-or-glycerol-induced-hyperhydration
#2
Eric D B Goulet, Adrien De La Flore, Félix A Savoie, Jonathan Gosselin
Hyperhydration has been demonstrated to improve work capacity and cardiovascular and thermoregulatory functions, enhance orthostatic tolerance, slow or neutralize bone demineralization and decrease post-dive bubble formation. Adding sodium or glycerol to a hyperhydration solution optimizes fluid retention. Sodium and glycerol produce their effect through different physiological mechanisms. If combined into a hyperhydration solution their impact on fluid retention could potentially be greater than their singular effect...
November 15, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29079406/aldosterone-induced-protein-kinase-signalling-and-the-control-of-electrolyte-balance
#3
REVIEW
Brian J Harvey, Warren Thomas
Aldosterone acts through the mineralocorticoid receptor (MR) to modulate gene expression in target tissues. In the kidney, the principal action of aldosterone is to promote sodium conservation in the distal nephron and so indirectly enhance water conservation under conditions of hypotension. Over the last twenty years the rapid activation of protein kinase signalling cascades by aldosterone has been described in various tissues. This review describes the integration of rapid protein kinase D signalling responses with the non-genomic actions of aldosterone and transcriptional effects of MR activation...
October 24, 2017: Steroids
https://www.readbyqxmd.com/read/29077962/influence-of-emulsifier-blends-having-different-hydrophilic-lipophilic-balance-value-on-growth-performance-nutrient-digestibility-serum-lipid-profiles-and-meat-quality-of-broilers
#4
S D Upadhaya, Ju Seong Lee, Kyoung Jin Jung, I H Kim
Energy is a major cost component in diets for poultry. We hypothesized that the supplementation of emulsifier blends in broiler diets may contribute to the efficient utilization of energy and in increasing fat digestibility, thereby improving performance. To test our hypothesis, an experiment was conducted to evaluate the effect of a blend of emulsifiers on growth performance, nutrient digestibility, serum lipid profiles, and meat quality of broilers. A total of 768 1-d-old Ross 308 male broiler chicks with an average initial body weight of 45...
October 25, 2017: Poultry Science
https://www.readbyqxmd.com/read/29076349/the-therapeutic-potential-of-targeting-the-kir1-1-renal-outer-medullary-k-channel
#5
Birgit T Priest, Alexander Pasternak
Kir1.1 (renal outer medullary K(+)) channels are potassium channels expressed almost exclusively in the kidney and play a role in the body's electrolyte and water balance. Potassium efflux through Kir1.1 compliments the role of transporters and sodium channels that are the targets of known diuretics. Consequently, loss-of-function mutations in men and rodents are associated with salt wasting and low blood pressure. On this basis, Kir1.1 inhibitors may have value in the treatment of hypertension and heart failure...
October 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29061720/role-of-kidneys-in-sex-differences-in-angiotensin-ii-induced-hypertension
#6
Lei Wang, Ximing Wang, Helena Y Qu, Shan Jiang, Jie Zhang, Liying Fu, Jacentha Buggs, Bo Pang, Jin Wei, Ruisheng Liu
The significance of kidneys in regulation of sodium and water balance and hemodynamics has been demonstrated both in patients and animal models. In the present study, we tested our hypothesis that kidneys play an essential role in control of sex differences in angiotensin II (Ang II)-dependent hypertension. Kidney transplantations (KTXs) were performed between male (M) and female (F) C57BL/6 mice (donor→recipient: F→F, M→M, F→M, and M→F). Radiotelemetry transmitters were implanted for measurement of mean arterial pressure during the infusion of Ang II (600 ng·kg(-1)·min(-1))...
October 23, 2017: Hypertension
https://www.readbyqxmd.com/read/29031578/short-term-exposure-to-bisphenol-a-affects-water-and-salt-intakes-differently-in-male-and-ovariectomised-female-rats
#7
Paula Nuñez, Juan Arguelles, Carmen Perillan
Thirst and sodium appetite are motivational states that lead to the search for and ingestion of water and sodium, thus contributing to maintenance of hydromineral balance. Oestrogens affect fluid intake and sodium preference. Bisphenol A (BPA) is an environmental endocrine-disrupting substance with oestrogenic activity. Whether there are sex differences in the ingestive effects of BPA is unknown. Therefore, the aim of the present work was to determine the effect of short-term treatment of low doses of BPA on thirst and sodium appetite in adult male and ovariectomised Wistar rats...
January 1, 2018: Appetite
https://www.readbyqxmd.com/read/28985241/short-term-high-salt-diet-increases-corin-level-to-regulate-the-salt-water-balance-in-humans-and-rodents
#8
Jiao Zhang, Yanjun Yin, Lili Chen, Chao Chu, Yang Wang, Yongbo Lv, Ming He, Marcy Martin, Po-Hsun Huang, Jian-Jun Mu, John Y-J Shyy, Zu-Yi Yuan
Background: Dietary sodium and potassium affect the fluctuation in blood pressure and renal function. Corin, with its enzymatic activity to convert pro-atrial natriuretic peptide (pro-ANP) to biologically active ANP, regulates blood pressure, cardiac and renal functions. We investigated whether corin expression responds to a high-salt (HS) diet to regulate salt and water balance. Methods and results: Forty-two volunteers followed 3 sequential diets for 7 days each: a low-salt (LS) diet (3...
August 8, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28928461/time-dependent-effects-of-ipragliflozin-on-behaviour-and-energy-homeostasis-in-normal-and-type-2-diabetic-rats-continuous-glucose-telemetry-analysis
#9
Hiroyuki Iuchi, Masaya Sakamoto, Daisuke Matsutani, Hirofumi Suzuki, Yosuke Kayama, Norihiko Takeda, Susumu Minamisawa, Kazunori Utsunomiya
Sodium-glucose cotransporter 2 (SGLT2) inhibitors are oral antidiabetic drugs that promote urinary glucose excretion. Conversely, they cause behavioural changes, such as hyperphagia, that result in a positive energy balance. The relationship between energy homeostasis and SGLT2 inhibitors-induced behavioural changes remains unclear. Here we show that ipragliflozin, a SGLT2 inhibitor, time-dependently affects behaviour and enhances energy expenditure in normal and type 2 diabetic Goto-Kakizaki (GK) rats, using continuous glucose telemetry...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28920046/the-effect-of-intraoperative-alkali-treatment-on-recovery-from-atracurium-induced-neuromuscular-blockade-in-renal-transplantation-a-randomized-trial
#10
Navid Noraee, Mohammad Fathi, Majid Golestani Eraghi, Ali Dabbagh, Nilofar Massoudi
BACKGROUND: Intraoperative care and anesthesia method in patients undergoing allograft renal transplantation surgery are very necessary. Acid-base imbalance can alter neuromuscular blockade and recovery time. OBJECTIVES: The aim of the present study was to investigate the effect of acid-base balance on atracurium blockade in renal transplantation. METHODS: In this randomized-controlled trial, 31 end-stage renal disease (ESRD) patients undergoing renal transplantation were randomly assigned into two equal groups...
February 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28918839/prostaglandin-e2-induces-prorenin-dependent-activation-of-pro-renin-receptor-and-upregulation-of-cyclooxygenase-2-in-collecting-duct-cells
#11
Nicolás Salinas-Parra, Cristian Reyes-Martínez, Minolfa C Prieto, Alexis A Gonzalez
BACKGROUND: Prostaglandin E2 (PGE2) regulates renin expression in renal juxtaglomerular cells. PGE2 acts through E-prostanoid (EP) receptors in the renal collecting duct (CD) to regulate sodium and water balance. CD cells express EP1 and EP4, which are linked to protein kinase C (PKC) and PKA downstream pathways, respectively. Previous studies showed that the presence of renin in the CD, and that of PKC and PKA pathways, activate its expression. The (pro)renin receptor (PRR) is also expressed in CD cells, and its activation enhances cyclooxygenase-2 (COX-2) through extracellular signal-regulated kinase (ERK)...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28917362/a-comparative-study-of-the-antacid-effect-of-some-commonly-consumed-foods-for-hyperacidity-in-an-artificial-stomach-model
#12
Vandana Panda, Priyanka Shinde, Jyoti Deora, Pankaj Gupta
OBJECTIVES: The incorporation of certain alkalinizing vegetables, fruits, milk and its products in the diet has been known to alleviate hyperacidity. These foods help to restore the natural gastric balance and function, curb acid reflux, aid digestion, reduce the burning sensation due to hyperacidity and soothe the inflamed mucosa of the stomach. The present study evaluates and compares the antacid effect of broccoli, kale, radish, cucumber, lemon juice, cold milk and curd in an artificial stomach model...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28887070/decreased-serum-sodium-levels-predict-symptomatic-vasospasm-in-patients-with-subarachnoid-hemorrhage
#13
Yoichi Uozumi, Takashi Mizobe, Hirohito Miyamoto, Noriaki Ashida, Tsuyoshi Katsube, Shotaro Tatsumi, Mitsugu Nakamura, Eiji Kohmura
BACKGROUND: Symptomatic vasospasm is a major cause of morbidity and mortality in subarachnoid hemorrhage patients. Hyponatremia and dehydration due to natriuresis after subarachnoid hemorrhage are related to symptomatic vasospasm. Therefore, most institutions are currently targeting euvolemia and eunatremia in subarachnoid hemorrhage patients to avoid complications. We retrospectively investigated the predictors of symptomatic vasospasm with respect to water and sodium homeostasis, while maintaining euvolemia and eunatremia after subarachnoid hemorrhage...
December 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28879625/effects-of-arsenic-compounds-on-microminerals-content-and-antioxidant-enzyme-activities-in-rat-liver
#14
Ana Cláudia Ferreira Souza, Sarah Cozzer Marchesi, Graziela Domingues de Almeida Lima, Mariana Machado-Neves
Interactions of arsenic with essential trace elements may result in disturbances on body homeostasis. In the present study, we aimed to investigate the effects of different arsenic compounds on micromineral content and antioxidant enzyme activities in rat liver. Male Wistar rats were randomly divided into five groups and exposed to sodium arsenite and sodium arsenate at 0.01 and 10 mg/L for 8 weeks in drinking water. The concentration of arsenic increased in the liver of all arsenic-exposed animals. The proportion of zinc and copper increased in animals exposed to 0...
September 6, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28876128/influence-of-inhaled-amiloride-on-lung-fluid-clearance-in-response-to-normobaric-hypoxia-in-healthy-individuals
#15
Courtney M Wheatley, Sarah E Baker, Bryan J Taylor, Manda L Keller-Ross, Steven C Chase, Alex R Carlson, Robert J Wentz, Eric M Snyder, Bruce D Johnson
Wheatley, Courtney M., Sarah E. Baker, Bryan J. Taylor, Manda L. Keller-Ross, Steven C. Chase, Alex R. Carlson, Robert J. Wentz, Eric M. Snyder, and Bruce D. Johnson. Influence of inhaled amiloride on lung fluid clearance in response to normobaric hypoxia in healthy individuals. High Alt Med Biol 00:000-000, 2017. AIM: To investigate the role of epithelial sodium channels (ENaC) on lung fluid clearance in response to normobaric hypoxia, 20 healthy subjects were exposed to 15 hours of hypoxia (fraction of inspired oxygen [FiO2] = 12...
September 6, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28862988/feto-maternal-osmotic-balance-at-term-a-prospective-observational-study
#16
Vibeke Moen, Lars Brudin, Ivar Tjernberg, Mats Rundgren, Lars Irestedt
OBJECTIVE: We performed the present study to investigate the feto-maternal osmotic relationship at term with the hypothesis that, in contrast to the literature, maternal plasma osmolality is lower than fetal levels. In a previous study, we found that maternal plasma sodium at delivery was consistently lower than the sodium in the umbilical artery. Our aim was to corroborate these results with analysis of osmolality. METHODS: Blood was sampled from 30 women immediately before cesarean section and from the umbilical artery and vein before cord clamping and osmolality, sodium and albumin were analyzed...
June 6, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28801267/primum-non-nocere-the-effects-of-sodium-hypochlorite-on-dentin-as-used-in-endodontics
#17
Li-Sha Gu, Xue-Qing Huang, Brandon Griffin, Brian R Bergeron, David H Pashley, Li-Na Niu, Franklin R Tay
The medical literature is replete with the maxim 'primum non nocere', cautioning health care providers to avoid doing any harm to human subjects in their delivery of medical care. Sodium hypochlorite (NaOCl) is a well-established irrigant for root canal treatment because of its antimicrobial and organic tissue remnant dissolution capability. However, little is known about the deleterious effect of this strong oxidizing agent on the integrity of human mineralized dentin. Iatrogenically-induced loss of dentin integrity may precipitate post-treatment root fracture and has potential medico-legal complications...
August 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28796300/apelin-apj-system-a-novel-potential-therapy-target-for-kidney-disease
#18
REVIEW
Zhen Huang, Lele Wu, Linxi Chen
Apelin is an endogenous ligand of seven-transmembrane G protein-coupled receptor APJ. Apelin and APJ are distributed in various tissues, including the heart, lung, kidney, and even in tumor tissues. Studies show that apelin mRNA is highly expressed in the inner stripe of kidney outer medulla, which plays an important role in process of water and sodium balance. Additionally, more studies also indicate that apelin/APJ system exerts a broad range of activities in kidney. Therefore, we review the role of apelin/APJ system in kidney diseases such as renal fibrosis, renal ischemia/reperfusion injury, diabetic nephropathy, polycystic kidney disease, and hemodialysis (HD)...
August 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28791006/regulation-of-lung-epithelial-sodium-channels-by-cytokines-and-chemokines
#19
REVIEW
Brandi M Wynne, Li Zou, Valerie Linck, Robert S Hoover, He-Ping Ma, Douglas C Eaton
Acute lung injury leading to acute respiratory distress (ARDS) is a global health concern. ARDS patients have significant pulmonary inflammation leading to flooding of the pulmonary alveoli. This prevents normal gas exchange with consequent hypoxemia and causes mortality. A thin fluid layer in the alveoli is normal. The maintenance of this thin layer results from fluid movement out of the pulmonary capillaries into the alveolar interstitium driven by vascular hydrostatic pressure and then through alveolar tight junctions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28771454/%C3%AE-ketoglutarate-drives-electroneutral-nacl-reabsorption-in-intercalated-cells-by-activating-a-g-protein-coupled-receptor-oxgr1
#20
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
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