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https://www.readbyqxmd.com/read/28937245/dextran-sodium-sulphate-dss-induced-colitis-alters-the-expression-of-neurotrophins-in-smooth-muscle-cells-of-rat-colon
#1
M Al-Qudah, D A Shammala, A Al-Dwairi, O Al-Shboul, A G Mustafa
Neurotrophins are present in the gastrointestinal tract where they participate in the survival and growth of enteric neurons, augmentation of enteric circuits, elevation of colonic myoelectrical activity and also in different aspects of colitis. Previous studies largely focused on the role of neural and mucosal neurotrophins in gut inflammation. The expression of neurotrophins in colonic smooth muscle cells (SMCs) and the interactions of this potential source with colitis has not been studied in the gut. The expression of NGF, BDNF, NT-3 and TN-4 in SMCs from longitudinal and circular muscle layers of rat colon from normal and Dextran sodium sulphate (DSS)-induced colitis rats was measured by ELISA...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28932091/randomized-clinical-trial-comparing-fixed-time-split-dosing-and-split-dosing-of-oral-picosulfate-regimen-for-bowel-preparation
#2
Jae Hyuck Jun, Koon Hee Han, Jong Kyu Park, Hyun Il Seo, Young Don Kim, Sang Jin Lee, Baek Gyu Jun, Min Sik Hwang, Yoon Kyoo Park, Myeong Jong Kim, Gab Jin Cheon
AIM: To compare the efficacy of fixed-time split dose and split dose of an oral sodium picosulfate for bowel preparation. METHODS: This is study was prospective, randomized controlled study performed at a single Institution (2013-058). A total of 204 subjects were assigned to receive one of two sodium picosulfate regimens (i.e., fixed-time split or split) prior to colonoscopy. Main outcome measurements were bowel preparation quality and subject tolerability. RESULTS: There was no statistical difference between the fixed-time split dose regimen group and the split dose regimen group (Ottawa score mean 2...
August 28, 2017: World Journal of Gastroenterology: WJG
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
#3
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/28910154/activation-of-veratridine-sensitive-sodium-channels-but-not-electrical-field-stimulation-dilates-porcine-retinal-arterioles-with-preserved-perivascular-tissue
#4
Nils M Kratholm, Peter Skov Jensen, Sidse Kringelholt, Ulf Simonsen, Toke Bek
PURPOSE: Disturbances in retinal blood flow are a prominent feature of vision threatening retinal diseases. The regulation of tone in retinal resistance vessels involves the perivascular retinal tissue, but it is unknown to what extent neurons or glial cells contribute to the effect. Therefore, the purpose of the present study was to study the contribution of neurons in the perivascular retina to vascular tone during activation of voltage-gated sodium channels with veratridine and electrical field stimulation (EFS)...
September 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28904363/calcitriol-reduces-kidney-development-disorders-in-rats-provoked-by-losartan-administration-during-lactation
#5
Lucas Ferreira de Almeida, Heloísa Della Coletta Francescato, Cleonice Giovanini Alves da Silva, Roberto Silva Costa, Terezila Machado Coimbra
Calcitriol has important effects on cellular differentiation and proliferation, as well as on the regulation of the renin gene. Disturbances in renal development can be observed in rats exposed to angiotensin II (AngII) antagonists during lactation period. The lack of tubular differentiation in losartan-treated rats can affect calcitriol uptake. This study evaluated the effect of calcitriol administration in renal development disturbances in rats provoked by losartan (AngII type 1 receptor antagonist) administration during lactation...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28904081/variable-setpoint-as-a-relaxing-component-in-physiological-control
#6
Geir B Risvoll, Kristian Thorsen, Peter Ruoff, Tormod Drengstig
Setpoints in physiology have been a puzzle for decades, and especially the notion of fixed or variable setpoints have received much attention. In this paper, we show how previously presented homeostatic controller motifs, extended with saturable signaling kinetics, can be described as variable setpoint controllers. The benefit of a variable setpoint controller is that an observed change in the concentration of the regulated biochemical species (the controlled variable) is fully characterized, and is not considered a deviation from a fixed setpoint...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28902123/bidirectional-regulation-of-circadian-disturbance-and-inflammation-in-inflammatory-bowel-disease
#7
Xiaojing Liu, Ran Yu, Liangru Zhu, Xiaohua Hou, Kaifang Zou
BACKGROUND: Tight crosstalk between the circadian and immune systems has been reported in several inflammatory diseases. We hypothesized that circadian timekeeping was perturbed in inflammatory bowel disease (IBD), and that the bidirectional regulation of circadian disturbance and inflammation may be involved in the pathogenesis of IBD. METHODS: Patients with ulcerative colitis (51) and Crohn's disease (39) and 42 healthy controls were recruited and their circadian gene expression levels evaluated...
October 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28899465/-clinical-features-and-myo5b-mutations-of-a-family-affected-by-microvillus-inclusion-disease
#8
Ying Cheng, Hong Liang, Na-Li Cai, Li Guo, Yu-Ge Huang, Yuan-Zong Song
Microvillus inclusion disease (MVID) is an autosomal recessive disorder caused by biallelic mutations in the MYO5B or STX3 gene. Refractory diarrhea and malabsorption are the main clinical manifestations. The aim of this study was to investigate the clinical features and MYO5B gene mutations of an infant with MVID. A 21-day-old female infant was referred to the hospital with the complaint of diarrhea for 20 days. On physical examination, growth retardation of the body weight and length was found along with moderately jaundiced skin and sclera...
September 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28898907/effects-of-cobalamin-vitamin-b12-on-gentamicin-induced-nephrotoxicity-in-rat
#9
Saeed Hajihashemi, Zeinab Hamidizad, Ali Rahbari, Fatemeh Ghanbari, Zohre Aghaee Motealeghi
Background The main side effect of gentamicin is nephrotoxicity. The effect of cobalamin (Cob) was investigated on gentamicin nephrotoxicity in rats. Methods Renal injury induced by i.p. injection of gentamicin (100 mg/kg) for 8 consecutive days. Cobalamin (6 mg/kg/day, i.p) treatment was done for 8 consecutive days as co-treatment and post-treatment protocol. Results Cobalamin significantly increased creatinine clearance levels and renal blood flow which were reduced by gentamicin. Also, cobalamin significantly improved serum electrolytes (sodium and potassium) levels which were disturbed by gentamicin...
September 12, 2017: Drug Research
https://www.readbyqxmd.com/read/28888605/effects-of-profound-acidemia-on-the-dynamic-glucose-and-insulin-response-and-plasma-potassium-and-phosphorus-concentrations-during-an-intravenous-glucose-tolerance-test-in-neonatal-calves
#10
F M Trefz, I Lorenz, P D Constable
Acidemia and electrolyte imbalances such as hyperkalemia are common in neonatal calves with diarrhea. Acidemia negatively affects the cellular response to insulin and may therefore result in deranged glucose, potassium, and phosphorus homeostasis. The primary aim of this study was to compare indices that characterize the dynamic glucose and insulin response between acidemic and nonacidemic neonatal diarrheic calves and a healthy control group during an intravenous glucose tolerance test (IVGTT) that consisted of i...
September 6, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28879625/effects-of-arsenic-compounds-on-microminerals-content-and-antioxidant-enzyme-activities-in-rat-liver
#11
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/28868302/electrolyte-disturbances-are-associated-with-non-survival-in-dogs-a-multivariable-analysis
#12
Robert Goggs, Sage De Rosa, Daniel J Fletcher
Electrolyte disorders have been individually associated with mortality in small populations of dogs and cats with specific conditions, but the associations and interactions between electrolyte disturbances and outcome have not been evaluated in a large, heterogeneous population. It was hypothesized that abnormalities of sodium, chloride, potassium, and calcium concentrations would be independently and proportionately associated with death from natural causes and with all-cause mortality in dogs. An electronic database containing 33,117 electrolyte profiles was constructed to retrospectively assess the association between disorders of sodium, potassium, corrected chloride, and ionized calcium concentrations with non-survival and with death excluding euthanasia by multivariable modeling...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28867800/ciguatoxins-evoke-potent-cgrp-release-by-activation-of-voltage-gated-sodium-channel-subtypes-nav1-9-nav1-7-and-nav1-1
#13
Filip Touska, Simon Sattler, Philipp Malsch, Richard J Lewis, Peter W Reeh, Katharina Zimmermann
Ciguatoxins (CTXs) are marine toxins that cause ciguatera fish poisoning, a debilitating disease dominated by sensory and neurological disturbances that include cold allodynia and various painful symptoms as well as long-lasting pruritus. Although CTXs are known as the most potent mammalian sodium channel activator toxins, the etiology of many of its neurosensory symptoms remains unresolved. We recently described that local application of 1 nM Pacific Ciguatoxin-1 (P-CTX-1) into the skin of human subjects induces a long-lasting, painful axon reflex flare and that CTXs are particularly effective in releasing calcitonin-gene related peptide (CGRP) from nerve terminals...
August 30, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28860774/bipolar-ii-disorder-as-the-initial-presentation-of-cadasil-an-underdiagnosed-manifestation
#14
Jianjun Wang, Jinfang Li, Fanxin Kong, Hanqing Lv, Zhouke Guo
Mood disturbances have been documented in cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). The highly varied morbidity indicates that the affective symptoms in CADASIL have not been cataloged systematically, leading to ineffective treatment, affecting the patients' quality of life, and possibly resulting in suicide. We present a case of CADASIL with bipolar II disorder as the first manifestation. A middle-aged female reported recurrent depressive episodes and appeared treatment resistant to adequate dosages and durations of antidepressants...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28852124/oxidative-stress-and-immune-responses-during-hepatitis-c-virus-infection-in-tupaia-belangeri
#15
Mohammad Enamul Hoque Kayesh, Sayeh Ezzikouri, Takahiro Sanada, Haiying Chi, Yukiko Hayashi, Khadija Rebbani, Bouchra Kitab, Aya Matsuu, Noriaki Miyoshi, Tsunekazu Hishima, Michinori Kohara, Kyoko Tsukiyama-Kohara
Hepatitis C virus (HCV) is a leading cause of chronic liver disease, cirrhosis, and hepatocellular carcinoma. To address the molecular basis of HCV pathogenesis using tupaias (Tupaia belangeri), we characterized host responses upon HCV infection. Adult tupaias were infected with HCV genotypes 1a, 1b, 2a, or 4a. Viral RNA, alanine aminotransferase, anti-HCV core and anti-nonstructural protein NS3 antibody titres, reactive oxygen species (ROS), and anti-3β-hydroxysterol-Δ24reductase (DHCR24) antibody levels were measured at 2-week intervals from 0 to 41 weeks postinfection...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28841529/modification-of-saltwater-stress-response-in-cyprinus-carpio-linnaeus-1758-pre-exposed-to-pesticide-indoxacarb
#16
Melika Ghelichpour, Ali Taheri Mirghaed, Seyed Saeed Mirzargar, Hamidreza Joshaghani, Hoseinali Ebrahimzadeh Mousavi
To evaluate the effects of indoxacarb on saltwater stress response in Cyprinus carpio, the fish were pre-exposed to indoxacarb (0, 0.75, 1.5 and 3mg/L denoted as CP, 0.75IT, 1.5IT and 3IT, respectively) for 21 days and then released to saltwater. A negative control (CN) group was included (the fish were held in indoxacarb-free water for the entire experiment). The fish were sampled immediately (0h) and 24, 48 and 72h after the salinity exposure for the analysis of plasma cortisol, glucose and sodium, chloride, potassium and calcium levels...
August 22, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28819898/regulation-of-hepatic-na-k-atpase-in-obese-female-and-male-rats-involvement-of-erk1-2-ampk-and-rho-rock
#17
Julijana Stanimirovic, Milan Obradovic, Anastasija Panic, Voin Petrovic, Dragan Alavantic, Irena Melih, Esma R Isenovic
In this study, we assessed whether the disturbed regulation of sodium/potassium-adenosine-triphosphatase (Na(+)/K(+)-ATPase) occurs as a consequence of obesity-induced IR in sex-specific manner. We also assessed whether alterations of IRS/PI3K/Akt, ERK1/2, AMPKα, and RhoA/ROCK signaling cascades have an important role in this pathology. Female and male Wistar rats (150-200 g, 8 weeks old) were fed a standard laboratory diet or a high-fat (HF) diet (42% fat) for 10 weeks. The activity of hepatic Na(+)/K(+)-ATPase and Rho, and the association of IRS-1/p85 were assessed in liver...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28819717/mitigation-of-acute-aluminum-toxicity-by-sodium-selenite-and-n-acetylcysteine-in-adult-male-rats
#18
Naglaa H Nour-Eldein, El-Sayed A Hassanin, Wael M El-Sayed
The objective of this study is to investigate the toxic effects of aluminum and the potential alleviation of selenite and N-acetylcysteine (NAC) on this toxicity. Acute aluminum toxicity was induced by intraperitoneal (i.p.) injection of AlCl3 (30 mg Al(3+)/kg) for four consecutive days. Al(3+) damaged the synthetic capability and regeneration power of liver cells and induced inflammation. It also damaged the kidney and disturbed the lipid profile enhancing the total cholesterol level and LDL-cholesterol level increasing the risks of atherosclerosis...
August 17, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28812061/behavioral-comorbidities-and-drug-treatments-in-a-zebrafish-scn1lab-model-of-dravet-syndrome
#19
Brian P Grone, Tiange Qu, Scott C Baraban
Loss-of-function mutations in SCN1A cause Dravet syndrome (DS), a catastrophic childhood epilepsy in which patients experience comorbid behavioral conditions, including movement disorders, sleep abnormalities, anxiety, and intellectual disability. To study the functional consequences of voltage-gated sodium channel mutations, we use zebrafish with a loss-of-function mutation in scn1lab, a zebrafish homolog of human SCN1A. Homozygous scn1lab(s552/s552) mutants exhibit early-life seizures, metabolic deficits, and early death...
July 2017: ENeuro
https://www.readbyqxmd.com/read/28806046/electrolytes-sodium-disorders
#20
Michael M Braun, Megan Mahowald
Sodium disorders (ie, hyponatremia, hypernatremia) are common electrolyte disturbances in clinical medicine and are associated with increased rates of morbidity and mortality. Etiologies of hyponatremia are classified into four categories. The first is pseudohyponatremia, in which the sodium level is low due to hyperproteinemia, hyperlipidemia, or hyperglycemia. The other three categories are based on overall patient fluid status and include hypovolemic (commonly due to fluid loss), hypervolemic (commonly due to fluid retention from heart failure, cirrhosis, or renal failure), and euvolemic (most often because of syndrome of inappropriate secretion of antidiuretic hormone)...
August 2017: FP Essentials
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