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https://www.readbyqxmd.com/read/28685242/an-investigation-of-protective-effects-of-litium-borate-on-blood-and-histopathological-parameters-in-acute-cadmium-induced-rats
#1
Serkan Yildirim, Fatih Caglar Celikezen, Gökhan Oto, Emin Sengul, Mehmet Bulduk, M Tasdemir, D Ali Cinar
This study was carried out to determine the protective effects of lithium borate (LTB) on blood parameters and histopathological findings in experimentally induced acute cadmium (Cd) toxicity in rats. Twenty-eight male Wistar albino rats were used, weighing 200-220 g, and they were randomly divided into four groups, including one control and the following three experimental groups: a Cd group (0.025 mmol/kg), a LTB group (15 mg/kg/day orally for 5 days), and a LTB + Cd group (15 mg/kg/day orally for 5 days and Cd 0...
July 7, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28666216/assessment-of-28-trace-elements-and-17-amino-acid-levels-in-muscular-tissues-of-broiler-chicken-gallus-gallus-suffering-from-arsenic-trioxide
#2
Si-Wen Li, Ying He, Hong-Jing Zhao, Yu Wang, Juan-Juan Liu, Yi-Zhi Shao, Jing-Lun Li, Xiao Sun, Li-Na Zhang, Ming-Wei Xing
The contents of 28 trace elements, 17 amino acid were evaluated in muscular tissues (wings, crureus and pectoralis) of chickens in response to arsenic trioxide (As2O3). A total of 200 one-day-old male Hy-line chickens were fed either a commercial diet (C-group) or an As2O3 supplement diet containing 7.5mg/kg (L-group), 15mg/kg (M-group) or 30mg/kg (H-group) As2O3 for 90 days. The elements content was analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Under As2O3 exposure, the concentration of As were elevated 8...
June 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28595035/n-methyl-d-aspartate-receptors-mediate-epilepsy-induced-axonal-impairment-and-tau-phosphorylation-via-activating-glycogen-synthase-kinase-3%C3%AE-and-cyclin-dependent-kinase-5
#3
Xi Liu, Shu Ou, Maojia Yin, Tao Xu, Teng Wang, Ying Liu, Xueying Ding, Xinyuan Yu, Jinxian Yuan, Hao Huang, Xiuhang Zhang, Xinjie Tan, Lifen Chen, Yangmei Chen
The mechanism of epilepsy-induced axonal impairment is poorly understood. N-methyl-D-aspartate receptors (NMDARs) play important roles in epilepsy and mediate structural and functional axonal impairment. GSK-3β and Cdk5 affect axons and are regulated by NMDARs, while their roles in epilepsy-induced axonal impairment are unclear. We demonstrated that axonal impairment is characterized by neurofilament heavy (NFH) reduction, amyloid precursor protein (APP) accumulation, and increased tau phosphorylation accompanied by a decrease of total tau in temporal lobe epilepsy (TLE) patients and pentylenetetrazol (PTZ)-kindled rats...
April 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28529112/myeloid-differentiation-factor-88-is-up-regulated-in-epileptic-brain-and-contributes-to-experimental-seizures-in-rats
#4
Na Wang, Xiong Han, Haipeng Liu, Ting Zhao, Jie Li, Yan Feng, Xiujuan Mi, Yanke Zhang, Yanan Chen, Xuefeng Wang
Accumulating evidence supports that activation of inflammatory pathways is a crucial factor contributing to the pathogenesis of seizures. In particular, the activation of interleukin-1 beta (IL-1β) system exerts proconvulsant effects in a large variety of seizure models. Myeloid differentiation factor 88 (MyD88) is a critical adaptor protein in the signaling cascade elicited by IL-1β. The present study aimed to investigate the expression pattern of MyD88 in rat models of seizures and in patients with refractory temporal lobe epilepsy (TLE), and to study the role of MyD88 in epileptic seizures...
May 18, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28452419/neurosteroid-sensitive-%C3%AE-gabaa-receptors-a-role-in-epileptogenesis
#5
Suchitra Joshi, Karthik Rajasekaran, John Williamson, Jaideep Kapur
OBJECTIVE: We determined the role of the neurosteroid-sensitive δ subunit-containing γ-aminobutyric acid A receptors (δ-GABARs) in epileptogenesis. METHODS: Status epilepticus (SE) was induced via lithium pilocarpine in adult rats, and seizures were assessed by continuous video-electroencephalography (EEG) monitoring. Finasteride was administered to inhibit neurosteroid synthesis. The total and surface protein expression of hippocampal δ, α4, and γ2 GABAR subunits was studied using biotinylation assays and Western blotting...
March 2017: Epilepsia
https://www.readbyqxmd.com/read/28338546/a-double-blind-placebo-controlled-pilot-study-of-riluzole-monotherapy-for-acute-bipolar-depression
#6
Lawrence T Park, Marc S Lener, Matthew Hopkins, Nicolas Iadorola, Rodrigo Machado-Vieira, Elizabeth Ballard, Allison Nugent, Carlos A Zarate
BACKGROUND: Glutamatergic system abnormalities are implicated in the pathophysiology and treatment of both major depressive disorder and bipolar depression (BDep). Subsequent to studies demonstrating the rapid and robust antidepressant effects of ketamine, an N-methyl-D-aspartate receptor antagonist, other glutamatergic modulators are now being studied in clinical trials of mood disorders. A previous open-label study found that riluzole, administered in combination with the mood stabilizer lithium, had antidepressant effects...
June 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28264506/plasma-membrane-na%C3%A2-%C2%BA-coupled-citrate-transporter-slc13a5-and-neonatal-epileptic-encephalopathy
#7
REVIEW
Yangzom D Bhutia, Jonathan J Kopel, John J Lawrence, Volker Neugebauer, Vadivel Ganapathy
SLC13A5 is a Na⁺-coupled transporter for citrate that is expressed in the plasma membrane of specific cell types in the liver, testis, and brain. It is an electrogenic transporter with a Na⁺:citrate(3-) stoichiometry of 4:1. In humans, the Michaelis constant for SLC13A5 to transport citrate is ~600 μM, which is physiologically relevant given that the normal concentration of citrate in plasma is in the range of 150-200 μM. Li⁺ stimulates the transport function of human SLC13A5 at concentrations that are in the therapeutic range in patients on lithium therapy...
February 28, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27951739/phytochemical-antioxidant-and-protective-effect-of-cactus-cladodes-extract-against-lithium-induced-liver-injury-in-rats
#8
Anouar Ben Saad, Brahmi Dalel, Ilhem Rjeibi, Amani Smida, Sana Ncib, Nacim Zouari, Lazhar Zourgui
CONTEXT: Opuntia ficus-indica (L.) Mill. (Castaceae) (cactus) is used in Tunisian medicine for the treatment of various diseases. OBJECTIVE: This study determines phytochemical composition of cactus cladode extract (CCE). It also investigates antioxidant activity and hepatoprotective potential of CCE against lithium carbonate (Li2CO3)-induced liver injury in rats. MATERIALS AND METHODS: Twenty-four Wistar male rats were divided into four groups of six each: a control group given distilled water (0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27770643/1h-magnetic-resonance-spectroscopy-study-of-glutamate-related-abnormality-in-bipolar-disorder
#9
Hiroko Kubo, Masahito Nakataki, Satsuki Sumitani, Jun-Ichi Iga, Shusuke Numata, Naomi Kameoka, Shin-Ya Watanabe, Hidehiro Umehara, Makoto Kinoshita, Masatoshi Inoshita, Mai Tamaru, Masashi Ohta, Chiaki Nakayama-Yamauchi, Yasuhiro Funakoshi, Masafumi Harada, Tetsuro Ohmori
BACKGROUND: Previous studies of patients with bipolar disorder (BD) using magnetic resonance spectroscopy (MRS) have shown neurophysiological abnormalities related to the glutamate (Glu)-glutamine (Gln) cycle, membrane turnover, and neuronal integrity, although the results were neither consistent nor conclusive. Recently it has been reported the Gln/Glu ratio is the most useful index, quantifying neuronal-glial interactions and the balance of glutamatergic metabolites In this MRS study, we elucidated the abnormalities of metabolites in a larger sample of patients with BD with a high-field MRI system...
January 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27609245/postpartum-psychosis-madness-mania-and-melancholia-in-motherhood
#10
REVIEW
Veerle Bergink, Natalie Rasgon, Katherine L Wisner
OBJECTIVE: Psychosis or mania after childbirth is a psychiatric emergency with risk for suicide and infanticide. METHOD: The authors reviewed the epidemiologic and genetic research and physiological postpartum triggers (endocrine, immunological, circadian) of psychosis. They also summarized all systematic reviews and synthesized the sparse clinical studies to provide diagnostic recommendations, treatment options, and strategies for prevention. RESULTS: The incidence of first-lifetime onset postpartum psychosis/mania from population-based register studies of psychiatric admissions varies from 0...
December 1, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27500978/midazolam-ketamine-dual-therapy-stops-cholinergic-status-epilepticus-and-reduces-morris-water-maze-deficits
#11
Jerome Niquet, Roger Baldwin, Keith Norman, Lucie Suchomelova, Lucille Lumley, Claude G Wasterlain
OBJECTIVE: Pharmacoresistance remains an unsolved therapeutic challenge in status epilepticus (SE) and in cholinergic SE induced by nerve agent intoxication. SE triggers a rapid internalization of synaptic γ-aminobutyric acid A (GABAA ) receptors and externalization of N-methyl-d-aspartate (NMDA) receptors that may explain the loss of potency of standard antiepileptic drugs (AEDs). We hypothesized that a drug combination aimed at correcting the consequences of receptor trafficking would reduce SE severity and its long-term consequences...
September 2016: Epilepsia
https://www.readbyqxmd.com/read/27495218/status-epilepticus-alters-hippocampal-long-term-synaptic-potentiation-in-a-rat-lithium-pilocarpine-model
#12
Kirill A Kryukov, Kira K Kim, Lev G Magazanik, Aleksey V Zaitsev
Seizure-induced memory deficits are frequent in patients with temporal lobe epilepsy. However, the neural mechanisms responsible for this memory impairment are not entirely clear. Persistent changes in synaptic efficacy, long-term potentiation (LTP), and depression are considered a cellular substrate underlying the learning and memory processes. Using a lithium-pilocarpine model to induce status epilepticus (SE) in rats, the present study investigated whether the induction of LTP was altered in hippocampal slices obtained 3 h, 1, 3, and 7 days after SE...
November 9, 2016: Neuroreport
https://www.readbyqxmd.com/read/27444804/estimation-of-the-imprecision-on-clinical-chemistry-testing-due-to-fist-clenching-and-maintenance-during-venipuncture
#13
Gabriel Lima-Oliveira, Gian Cesare Guidi, Gian Luca Salvagno, Giorgio Brocco, Elisa Danese, Giuseppe Lippi
OBJECTIVES: An experimental study was planned to assess the influence on routine clinical chemistry parameters of fist making prior to, and maintenance during, venipuncture. DESIGN AND METHODS: Blood was collected from 16 healthy volunteers with two separate sequential procedures, entailing standard venipuncture with hand opened throughout blood collection, or clenching the fist 6 times before venipuncture and maintaining the fist until completion of blood collection...
December 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/27216588/catatonic-syndrome-from-detection-to-therapy
#14
J Madigand, P Lebain, G Callery, S Dollfus
INTRODUCTION: Catatonia is a psychomotor syndrome which can include motor, mental, behavioral and vegetative symptoms. Exclusively associated with schizophrenia until the 1970s, catatonia still remains an under-diagnosed syndrome with significant morbidity and mortality. LITERATURE FINDINGS: As a result of its different forms and developments, catatonic syndrome can be associated with many organic and psychiatric etiologies and confused with a variety of diagnoses...
August 2016: L'Encéphale
https://www.readbyqxmd.com/read/27197133/quality-performance-of-laboratory-testing-in-pharmacies-a-collaborative-evaluation
#15
Martina Zaninotto, Giorgia Miolo, Adriano Guiotto, Silvia Marton, Mario Plebani
BACKGROUND: The quality performance and the comparability between results of pharmacies point-of-care-testing (POCT) and institutional laboratories have been evaluated. METHODS: Eight pharmacies participated in the project: a capillary specimen collected by the pharmacist and, simultaneously, a lithium-heparin sample drawn by a physician of laboratory medicine for the pharmacy customers (n=106) were analyzed in the pharmacy and in the laboratory, respectively. Glucose, cholesterol, HDL-cholesterol, triglycerides, creatinine, uric acid, aspartate aminotransferase, alanine aminotransferase, were measured using: Reflotron, n=5; Samsung, n=1; Cardiocheck PA, n=1; Cholestech LDX, n=1 and Cobas 8000...
November 1, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27188468/the-role-of-gastrodin-on-hippocampal-neurons-after-n-methyl-d-aspartate-excitotoxicity-and-experimental-temporal-lobe-seizures
#16
Shi-Bing Wong, Wei-Chen Hung, Ming-Yuan Min
Tian ma (Gastrodia elata, GE) is an ancient Chinese herbal medicine that has been suggested to be effective as an anticonvulsant and analgesic, and to have sedative effects against vertigo, general paralysis, epilepsy and tetanus. The primary active ingredient isolated from GE is termed gastrodin, which is the glucoside of 4-hydroxybenzyl alcohol (4-HBA). Gastrodin can abolish hypoxia-, glutamate- and N-methyl-D-aspartate (NMDA) receptor-induced toxicity in primary culture of rat cortical neurons, and reduces seizure severity in seizure-sensitive gerbils...
June 30, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/26894301/mitochondrial-dysfunction-and-lipid-peroxidation-in-rat-frontal-cortex-by-chronic-nmda-administration-can-be-partially-prevented-by-lithium-treatment
#17
Helena K Kim, Cameron Isaacs-Trepanier, Nika Elmi, Stanley I Rapoport, Ana C Andreazza
Chronic N-methyl-d-aspartate (NMDA) administration to rats may be a model to investigate excitotoxicity mediated by glutamatergic hyperactivity, and lithium has been reported to be neuroprotective. We hypothesized that glutamatergic hyperactivity in chronic NMDA injected rats would cause mitochondrial dysfunction and lipid peroxidation in the brain, and that chronic lithium treatment would ameliorate some of these NMDA-induced alterations. Rats treated with lithium for 6 weeks were injected i.p. 25 mg/kg NMDA on a daily basis for the last 21 days of lithium treatment...
May 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/26807672/an-assessment-of-the-anti-fatigue-effects-of-ketamine-from-a-double-blind-placebo-controlled-crossover-study-in-bipolar-disorder
#18
RANDOMIZED CONTROLLED TRIAL
Leorey N Saligan, David A Luckenbaugh, Elizabeth E Slonena, Rodrigo Machado-Vieira, Carlos A Zarate
BACKGROUND: Fatigue is a multidimensional condition that is difficult to treat with standard monoaminergic antidepressants. Ketamine, an N-methyl-D-aspartate receptor (NMDAR) antagonist produces rapid and robust improvements in depressive symptoms in treatment-resistant depression. However, there is a dearth of literature examining the anti-fatigue effects of ketamine. We hypothesize that ketamine will rapidly improve fatigue symptoms in treatment-resistant depressed patients. METHODS: This is an exploratory analysis of data obtained from two double-blind, randomized, placebo-controlled, crossover trials...
April 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/26688426/n-methyl-d-aspartate-receptor-nr2b-subunit-involved-in-depression-like-behaviours-in-lithium-chloride-pilocarpine-chronic-rat-epilepsy-model
#19
Wei-Feng Peng, Jing Ding, Xin Li, Fan Fan, Qian-Qian Zhang, Xin Wang
Depression is a common comorbidity in patients with epilepsy with unclear mechanisms. This study is to explore the role of glutamate N-methyl-D-aspartate (NMDA) receptor NR1, NR2A and NR2B subunits in epilepsy-associated depression. Lithium chloride (Licl)-pilocarpine chronic rat epilepsy model was established and rats were divided into epilepsy with depression (EWD) and epilepsy without depression (EWND) subgroups based on forced swim test. Expression of NMDA receptor NR1, NR2A and NR2B subunits was measured by western blot and immunofluorescence methods...
January 2016: Epilepsy Research
https://www.readbyqxmd.com/read/26327310/mammalian-csad-and-gadl1-have-distinct-biochemical-properties-and-patterns-of-brain-expression
#20
Ingeborg Winge, Knut Teigen, Agnete Fossbakk, Elaheh Mahootchi, Rune Kleppe, Filip Sköldberg, Olle Kämpe, Jan Haavik
Variants in the gene encoding the enzyme glutamic acid decarboxylase like 1 (GADL1) have been associated with response to lithium therapy. Both GADL1 and the related enzyme cysteine sulfinic acid decarboxylase (CSAD) have been proposed to be involved in the pyridoxal-5'-phosphate (PLP)-dependent biosynthesis of taurine. In the present study, we compared the catalytic properties, inhibitor sensitivity and expression profiles of GADL1 and CSAD in brain tissue. In mouse and human brain we observed distinct patterns of expression of the PLP-dependent decarboxylases CSAD, GADL1 and glutamic acid decarboxylase 67 (GAD67)...
November 2015: Neurochemistry International
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