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https://www.readbyqxmd.com/read/29243211/manganese-concentrations-in-tissues-and-skin-of-three-dolphin-species-stranded-in-the-croatian-waters-of-the-adriatic-sea-from-1995-to-2013
#1
Maja Đokić, Nina Bilandžić, Marija Sedak, Martina Đuras, Tomislav Gomerčić, Miroslav Benić, Tomislav Bolanča
Manganese concentrations were determined in muscle, kidney, liver, spleen, lung and fat tissues and skin of three cetacean species, the bottlenose (Tursiops truncatus), striped (Stenella coeruleoalba) and Risso's (Grampus griseus) dolphins, stranded along the Croatian Adriatic coast between 1995 and 2013. Mean ranges determined in tissues were (mg/kg, ww): muscle 0.23-0.27, liver 2.87-4.00, kidney 0.66-1.26, spleen 0.37-0.79, lung 0.18-0.57, skin 0.11-0.97, fat 0.06-0.42. The highest Mn mean levels in tissues were measured in species (mg/kg, ww): T...
December 14, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29242247/chip-regulates-aquaporin-2-quality-control-and-body-water-homeostasis
#2
Qi Wu, Hanne B Moeller, Donté A Stevens, Rebekah Sanchez-Hodge, Gabrielle Childers, Marleen L A Kortenoeven, Lei Cheng, Lena L Rosenbaek, Carrie Rubel, Cam Patterson, Trairak Pisitkun, Jonathan C Schisler, Robert A Fenton
The importance of the kidney distal convoluted tubule (DCT) and cortical collecting duct (CCD) is highlighted by various water and electrolyte disorders that arise when the unique transport properties of these segments are disturbed. Despite this critical role, little is known about which proteins have a regulatory role in these cells and how these cells can be regulated by individual physiologic stimuli. By combining proteomics, bioinformatics, and cell biology approaches, we found that the E3 ubiquitin ligase CHIP is highly expressed throughout the collecting duct; is modulated in abundance by vasopressin; interacts with aquaporin-2 (AQP2), Hsp70, and Hsc70; and can directly ubiquitylate the water channel AQP2 in vitro shRNA knockdown of CHIP in CCD cells increased AQP2 protein t1/2 and reduced AQP2 ubiquitylation, resulting in greater levels of AQP2 and phosphorylated AQP2...
December 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29237740/grhl2-is-required-for-collecting-duct-epithelial-barrier-function-and-renal-osmoregulation
#3
Christian Hinze, Janett Ruffert, Katharina Walentin, Nina Himmerkus, Elham Nikpey, Olav Tenstad, Helge Wiig, Kerim Mutig, Zeliha Yesim Yurtdas, Janet D Klein, Jeff M Sands, Federica Branchi, Michael Schumann, Sebastian Bachmann, Markus Bleich, Kai M Schmidt-Ott
Collecting ducts make up the distal-most tubular segments of the kidney, extending from the cortex, where they connect to the nephron proper, into the medulla, where they release urine into the renal pelvis. During water deprivation, body water preservation is ensured by the selective transepithelial reabsorption of water into the hypertonic medullary interstitium mediated by collecting ducts. The collecting duct epithelium forms tight junctions composed of barrier-enforcing claudins and exhibits a higher transepithelial resistance than other segments of the renal tubule exhibit...
December 13, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29236952/impaired-cardiac-contractile-function-in-agat-knockout-mice-devoid-of-creatine-is-rescued-by-homoarginine-but-not-creatine
#4
Kiterie M E Faller, Dorothee Atzler, Debra J McAndrew, Sevasti Zervou, Hannah J Whittington, Jillian N Simon, Dunja Aksentijevic, Michiel Ten Hove, Chi-Un Choe, Dirk Isbrandt, Barbara Casadei, Jurgen E Schneider, Stefan Neubauer, Craig A Lygate
Aims: Creatine buffers cellular ATP via the creatine kinase reaction. Creatine levels are reduced in heart failure, but their contribution to pathophysiology is unclear. Arginine:glycine amidinotransferase (AGAT) in the kidney catalyses both the first step in creatine biosynthesis as well as homoarginine synthesis. AGAT-/- mice fed a creatine-free diet have a whole body creatine-deficiency. We hypothesised that AGAT-/- mice would develop cardiac dysfunction and rescue by dietary creatine would imply causality...
December 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29236240/effects-of-small-molecules-water-that-may-retard-kidney-stone-formation
#5
Yang Li, Jichuan Pan, Yue Zhang, Yangtao Chang, Xiaoxiong Yang, Baoyu Yang, Xu Mao, Zhonghui Wang, Bing Gao, Xiuli Lu
PURPOSE: Water intake is important for preventing kidney stones. Small molecules water is a more active restructured water under magnetic field. Here, we studied the relation between small molecules water and crystal formation in the rat kidney. MATERIALS: The small molecules water was prepared by a water machine providing a 0.8-T magnetic field. Calcium oxalate crystals were induced by 0.75% EG (ethylene glycol) in male Sprague-Dawley rats by drinking small molecules water and plain water for up to 6 weeks, respectively...
December 13, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29234440/morinda-officinalis-polysaccharides-stimulate-hypothalamic-gnrh-secretion-in-varicocele-progression
#6
Zhu Zhu, Feng Huang, Feng Wang, Yonghong Zhang, Xiaozhen Zhao, Wei Wang
Varicoceles (VCs) are the predominant cause of male infertility and are a risk factor for chronic venous disease. Morinda officinalis (M. officinalis) is a traditional Chinese medicine used to tonify the kidney and strengthen yang. In this study, we evaluated the effects of water-soluble polysaccharides extracted from M. officinalis (MOPs) on gonadotropin-release hormone (GnRH) secretion in a classic experimental left VC (ELV) rat model. Intragastric administration of MOPs at a dose ranging from 50 mg kg-1 to 100 mg kg-1 facilitated improvements in sperm parameters and seminiferous epithelial structures, modulated serum hormone profiles, and stimulated GnRH synthesis and release in the hypothalamus...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29233773/repeated-oral-dose-toxicity-study-on-hydrolysable-tannin-rich-fraction-isolated-from-fruit-pericarps-of-terminalia-chebula-retz-in-wistar-albino-rats
#7
Sanmuga Priya Ekambaram, Senthamil Selvan Perumal, Keerthi B Babu, Durgalakshmi Rajendran
Terminalia chebula fruits are one of the richest sources of hydrolysable tannins and it is well known medicinal agent in traditional systems of medicine for treatment of various chronic ailments. In the present study, hydrolysable tannin rich fraction (HTF) was isolated from 80% hydroalcoholic extract of Terminalia chebula fruit pericarps and it was studied for acute and repeated dose oral toxicity in Wistar albino rats. HTF did not show any toxic symptoms or mortality at single dose administration of 5000 mg/kg/p...
December 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29232732/high-salt-intake-promotes-different-responses-to-urodilatin-and-uroguanylin-in-the-isolated-rat-kidney
#8
Antonio Rafael Coelho Jorge, Pedro Henrique Sá Costa, Helena Serra Azul Monteiro, Manassés Claudino Fonteles
Urodilatin (UD) and uroguanylin (UGN) have been implicated in the regulation of salt and water homeostasis, particularly in the balance handling of salt intake. In this sense, the aim of the present work was to study the main effects of these peptides in kidneys from animals subjected to high NaCl (2%) intake, during 10 days in metabolic cages. The control group received only normal water, whereas the treated group drank 2% solution of NaCl (NaCl 2%). In addition, we studied effect of subthreshold UD (0.14 nM) and UGN (0...
December 12, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29231024/-diatom-detection-using-enzyme-combined-with-strong-acid-digestion-method
#9
J Yao, W J Kan
OBJECTIVES: To detect diatom in the organs of drowners by enzyme combined with strong acid digestion method, and evaluate its application value. METHODS: A total of 40 cases which have been identified as drowning in local region were collected. Samples of the lung, liver, kidney, and the water of the scene were also gathered from each case. Strong acid digestion method, enzyme combined with strong acid digestion method, and enzymic digestion method were respectively performed to detect the diatom in the samples...
April 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29230492/uplc-ms-ms-analysis-of-antibiotics-in-pharmaceutical-effluent-in-tunisia-ecotoxicological-impact-and-multi-resistant-bacteria-dissemination
#10
Leyla Tahrani, Ines Mehri, Tim Reyns, Roel Anthonissen, Luc Verschaeve, Anis Bel Haj Khalifa, Joris Van Loco, Hassen Abdenaceur, Hedi Ben Mansour
The UPLC MS/MS analysis showed the presence of the two antibiotics in the pharmaceutical industry discharges during 3 months; norfloxacin and spiramycin which were quantified with the mean concentrations of 226.7 and 84.2 ng mL-1, respectively. Sixteen resistant isolates were obtained from the pharmaceutical effluent and identified by sequencing. These isolates belong to different genera, namely Citrobacter, Acinetobacter, Pseudomonas, Delftia, Shewanella, and Rheinheimera. The antibiotic resistance phenotypes of these isolates were determined (27 tested antibiotics-discs)...
December 11, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/29229756/decoding-the-molecular-switches-of-natriuretic-peptides-which-differentiate-its-vascular-and-renal-functions
#11
Sindhuja Sridharan, R Manjunatha Kini
Heart failure (HF) is associated with high morbidity and mortality. Dysfunction of blood pressure and/or volume homeostatic processes result in lower perfusion and/or congestion. Treatment strategies exerting differential effects on pressure and volume mechanisms are critical in handling patients with HF. Atrial natriuretic peptides (ANP) is a key hormone in maintaining circulation. It binds to NP receptor-A (NPR-A) on vasculature, kidneys and nervous system to lowers blood pressure and volume. It exerts a concentration-dependent pharmacological activity; only increased renal excretion of water and sodium at low doses and vasodilation along with renal effects at slightly higher doses...
December 11, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29229166/holding-water-congenital-anomalies-of-the-kidney-and-urinary-tract-ckd-and-the-ongoing-role-of-excellence-in-plumbing
#12
REVIEW
Lars J Cisek
Congenital anomalies of the kidneys and urinary tracts can result in diminished natal kidney function, possibly through common embryologic pathway disruption or as a result of development taking place in the face of disordered 'post-renal' drainage. Impaired conduit and reservoir function present potential for an ongoing assault leading to further deterioration and progression of chronic kidney disease, a risk that extends to adults with these conditions, even after "correction". The drainage and storage aspects of the urinary system that can impact kidney function are reviewed with attention to correctable or manageable problems including: Bladder dysfunction wherein the low pressure storage of urine is compromised requiring the kidney to work against a pressure gradient, the classic post renal failure problem...
November 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/29228677/copper-or-and-arsenic-induce-oxidative-stress-cascaded-nuclear-factor-kappa-b-dependent-inflammation-and-immune-imbalance-trigging-heat-shock-response-in-the-kidney-of-chicken
#13
Yu Wang, Hongjing Zhao, Yizhi Shao, Juanjuan Liu, Jinglun Li, Mingwei Xing
Excessive amount of copper (Cu) and inorganic arsenic (iAs) coexists in drinking water in many regions, this is associated with high risk of nephropathy, defined as chronic structural and functional disorders of the kidney. However, the underlying mechanisms are not well understood. In this study, a total of 72 day-old Hy-line chickens were exposed to 300 mg/kg copper sulphate or/and 30 mg/kg arsenic trioxide for 12 weeks. Indicators of oxidative stress, inflammation and heat shock proteins (HSPs) production were analyzed in kidney...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29226783/evaluation-of-the-water-disinfection-by-product-dichloroacetonitrile-induced-biochemical-oxidative-histopathological-and-mitochondrial-functional-alterations-subacute-oral-toxicity-in-rats
#14
Ying Dong, Fang Li, Haijun Shen, Rongzhu Lu, Siqi Yin, Qi Yang, Zhuangfa Li, Suhua Wang
Dichloroacetonitrile (DCAN), an emerging nitrogenous disinfection by-product, is more genotoxic and cytotoxic than the currently regulated carbonaceous disinfection by-products such as haloacetic acids. Few mechanistic studies have been conducted on the hepatic and renal toxicities of DCAN. This study examined the clinical biochemical, hematological, histopathological, oxidative, and mitochondrial functional alterations to evaluate the systematic toxicity after subacute oral exposure of 11 or 44 mg/kg/day in rats for 28 days...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/29226298/water-rest-shade-can-simple-actions-stop-an-epidemic-of-chronic-kidney-disease-of-unknown-etiology-among-farm-workers-in-central-america
#15
EDITORIAL
Karin Broberg
No abstract text is available yet for this article.
December 11, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/29224666/central-and-peripheral-roles-of-vasopressin-in-the-circadian-defense-of-body-hydration
#16
REVIEW
Claire Gizowski, Eric Trudel, Charles W Bourque
Vasopressin is a neuropeptide synthesized by specific subsets of neurons within the eye and brain. Studies in rats and mice have shown that vasopressin produced by magnocellular neurosecretory cells (MNCs) that project to the neurohypophysis is released into the blood circulation where it serves as an antidiuretic hormone to promote water reabsorption from the kidney. Moreover vasopressin is a neurotransmitter and neuromodulator that contributes to time-keeping within the master circadian clock (i.e. the suprachiasmatic nucleus, SCN) and is also used as an output signal by SCN neurons to direct centrally mediated circadian rhythms...
December 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29220052/hypoglycemic-and-hypolipidemic-effects-of-anthocyanins-extract-from-black-soybean-seed-coat-in-high-fat-diet-and-streptozotocin-induced-diabetic-mice
#17
Zhongqin Chen, Cong Wang, Yuxiang Pan, Xudong Gao, Haixia Chen
Black soybean seed coat extract (BSSCE) is a rich source of anthocyanins with multiple health effects. This study was aimed at investigating the composition and hypoglycemic and hypolipidemic effects of BSSCE in vitro and in a high-fat diet and streptozotocin (STZ)-induced diabetic mice. The anthocyanins of BSSCE were identified as cyanidin-3-O-glucoside, delphinidin-3-O-glucoside, and peonidin-3-O-glucoside by HPLC-MS. Results demonstrated that BSSCE exhibited strong inhibitory activities for α-amylase, potent inhibition activity against lipid accumulation in HepG2 cells and protection effect on H2O2-induced oxidative stress-damaged HepG2 cells...
December 8, 2017: Food & Function
https://www.readbyqxmd.com/read/29218471/rural-environment-study-for-water-from-different-sources-in-cluster-of-villages-in-mehsana-district-of-gujarat
#18
Nitasha Khatri, Sanjiv Tyagi, Deepak Rawtani
Water pollution and water scarcity are major environmental issues in rural and urban areas. They lead to decline in the quality of water, especially drinking water. Proper qualitative assessment of water is thus necessary to ensure that the water consumed is potable. This study aims to analyze the physicochemical parameters in different sources of water in rural areas and assess the quality of water through a classification system based on BIS and CPCB standards. The classification method has defined water quality in six categories, viz...
December 7, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29217107/the-underlying-physiological-basis-of-the-desert-rodent-meriones-shawi-s-survival-to-prolonged-water-deprivation-central-vasopressin-regulation-on-peripheral-kidney-water-channels-aqps-2
#19
A Elgot, O El Hiba, M Belkouch, H Gamrani
Meriones shawi (M. shawi) is a particular semi-desert rodent known by its resistance to long periods of thirst. The aim of the present investigation is to clarify the underlying mechanisms allowing M. shawi to resist to hard conditions of dehydration. For this reason we used two different approaches: i) a morphometric study, which consists in measuring the effect of dehydration on body and kidneys weights as well as the report kidney weight/body weight, ii) By immunohistochemistry, we proceed to study the effect of dehydration on the immunoreactivity of central vasopressin (AVP) and the kidney aquaporin-2 (AQP-2) which is a channel protein that allows water to permeate across cell membranes...
December 4, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29216816/acute-kidney-injury-in-low-and-middle-income-countries-investigations-management-and-prevention
#20
Mohamed B Abdelraheem
Acute kidney injury (AKI) is a relatively common condition, encountered in everyday paediatric clinical practice. It is an important cause of morbidity and mortality in children both inside and outside intensive care units. It is associated with prolonged hospital stay and progression to chronic kidney disease. The burden of AKI is particularly high in low- and middle-income countries where rural areas and smaller cities in the countryside predominate. Most of these areas suffer from poverty, poor sanitation, water quality and hygiene, lack of education and poor access to health care...
November 2017: Paediatrics and International Child Health
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