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Human & Experimental Toxicology

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https://www.readbyqxmd.com/read/29460637/hospital-usage-of-toxbase-in-great-britain-temporal-trends-in-accesses-2008-to-2015
#1
K Pyper, M Eddleston, D N Bateman, D Lupton, S Bradberry, E Sandilands, Shl Thomas, J P Thompson, C Robertson
AIM: To examine temporal trends in accesses to the UK's National Poison Information Service's TOXBASE database in Britain. METHODS: Generalized additive models were used to examine trends in daily numbers of accesses to TOXBASE from British emergency departments between January 2008 and December 2015. Day-of-the-week, seasonality and long-term trends were analysed at national and regional levels (Wales, Scotland and the nine English Government Office Regions). RESULTS: The long-term trend in daily accesses increases from 2...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441830/corrigendum
#2
(no author information available yet)
No abstract text is available yet for this article.
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441829/role-of-peroxisome-proliferator-activated-receptor-gamma-activation-on-visfatin-advanced-glycation-end-products-and-renal-oxidative-stress-in-obesity-induced-type-2-diabetes-mellitus
#3
A Tabassum, T Mahboob
The present study focused on the role of peroxisome proliferator-activated receptor-gamma (PPAR-γ) activation on renal oxidative damages, serum visfatin, and advanced glycation end products (AGEs) in high-fat diet (HFD)-induced type 2 diabetes mellitus. Following the institutional animal ethics committee guidelines, Wistar rats were categorized into five groups: group 1: fed on a normal rat diet; group 2: HFD-induced obese rats (HFD for 8 weeks); group 3: HFD-fed rats treated with rosiglitazone (RSG; 3 mg/kg orally for 7 days); group 4: T2DM rats induced by HFD and low dose of streptozotocin (i...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441828/fluoride-associated-ultrastructural-changes-and-apoptosis-in-human-renal-tubule-a-pilot-study
#4
J A Quadri, S Sarwar, A Sinha, M Kalaivani, A K Dinda, A Bagga, T S Roy, T K Das, A Shariff
The susceptibility of the kidneys to fluoride toxicity can largely be attributed to its anatomy and function. As the filtrate moves along the complex tubular structure of each nephron, it is concentrated in the proximal and distal tubules and collecting duct. It has been frequently observed that the children suffering from renal impairments also have some symptoms of dental and skeletal fluorosis. The findings suggest that fluoride somehow interferes with renal anatomy and physiology, which may lead to renal pathogenesis...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441827/urinary-bisphenol-a-concentrations-in-relation-to-asthma-in-a-sample-of-egyptian-children
#5
M M Youssef, Ems El-Din, M M AbuShady, N R El-Baroudy, T A Abd El Hamid, A F Armaneus, A S El Refay, J Hussein, D Medhat, Y A Latif
BACKGROUND: Bronchial asthma is one of the top disabling diseases in pediatrics. Limited research has been studied the association of the widely used plastic monomer bisphenol A (BPA) with childhood asthma. OBJECTIVE: To compare the levels of urinary BPA in asthmatic and control children and to investigate the implication of BPA among other risk factors for the development of asthma. SUBJECTS AND METHODS: This case-control study included 97 children (45 asthmatic and 52 healthy controls) aged 3-8 years...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441826/protective-effect-of-an-l-type-calcium-channel-blocker-amlodipine-on-paracetamol-induced-hepatotoxicity-in-rats
#6
H Kaya, B Polat, A Albayrak, T Mercantepe, B Buyuk
Paracetamol (P), one of the most popular and commonly used analgesic and antipyretic agents, causes hepatotoxicity in overdoses. Amlodipine (AML), an L-type calcium channel blocker, has been shown to have anti-inflammatory activity by reversing the effect of calcium in the inflammation pathogenesis. In this study, the hepatoprotective activity of AML on P-induced hepatotoxicity was evaluated. Thirty male albino Wistar rats were divided into five groups: (1) control, (2) 2 g/kg of P, (3) 2 g/kg of P + 5 mg/kg of AML, (4) 2 g/kg of P + 10 mg/kg of AML, and (5) 10 mg/kg of AML...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29441825/paraquat-induced-inflammatory-response-of-microglia-through-hsp60-tlr4-signaling
#7
Y Sun, J Zheng, Y Xu, X Zhang
Previous studies showed that paraquat (PQ) caused the apoptosis of dopaminergic neurons by inducing the generation of oxygen radical. The purpose of this study is to explore PQ-induced microglial inflammatory response and its underlying molecular mechanisms. The murine microglia BV2cell line was used. After stimulation with PQ and lipopolysaccharides (positive control), the concentrations of tumor necrosis factor-α (TNF-α), interleukin 1β (IL-1β), and interleukin 6 (IL-6) in the culture supernatant and mRNA expression of TNF-α and IL-1β were determined by ELISA and quantitative real-time Polymerase Chain Reaction (PCR), respectively...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29430958/cytotoxicity-oxidative-stress-and-apoptosis-in-k562-leukemia-cells-induced-by-an-active-compound-from-pyrano-pyridine-derivatives
#8
M Mahdavi, S Asghari, M Rahnamay, G Dehghan, Mah Feizi, S Balalaie
Recent studies have reported the potential of pyrano-pyridine compounds in inhibiting cell growth and apoptosis induction in cancer cells. Here, we investigated the effect of new pyrano-pyridine derivatives on proliferation, oxidative damages, and apoptosis in K562 leukemia cells. Among different tested compounds, we found 8-(4-chlorobenzylidene)-2-amino-4-(4-chlorophenyl)-5, 6, 7, 8-tetrahydro-6-phenethyl-4H-pyrano-[3, 2-c]pyridine-3-carbonitrile (4-CP.P) as the most effective compound with IC50 value of 20 μM...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29405769/thymoquinone-alleviates-the-experimentally-induced-alzheimer-s-disease-inflammation-by-modulation-of-tlrs-signaling
#9
Y S Abulfadl, N N El-Maraghy, Aa Eissa Ahmed, S Nofal, Y Abdel-Mottaleb, O A Badary
Alzheimer's disease (AD) is characterized by a robust inflammatory response elicited by the accumulation and deposition of amyloid-β (Aβ) within the brain. Aβ induces detrimental inflammatory responses through toll-like receptors (TLRs) signaling pathway. Thymoquinone (TQ), the main active constituent of Nigella sativa oil, has been reported by several previous studies for its potent anti-inflammatory effect. The aim of this study is to elucidate the effect of TQ in improving learning and memory, using a rat model of AD induced by a combination of aluminum chloride (AlCl 3 ) and d-galactose (d-Gal)...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29405768/diepoxybutane-induced-apoptosis-is-mediated-through-the-erk1-2-pathway
#10
E Eluka-Okoludoh, A J Ewunkem, S Thorpe, A Blanchard, P Muganda
Diepoxybutane (DEB) is the most potent active metabolite of butadiene, a regulated air pollutant. We previously reported the occurrence of DEB-induced, p53-dependent, mitochondrial-mediated apoptosis in human lymphoblasts. The present study investigated the role of the extracellular signal-regulated protein kinases 1 and 2 (ERK1/2) pathway in DEB-induced apoptotic signaling in exposed human lymphoblasts. Activated ERK1/2 and mitogen-activated protein (MAP) kinase/ERK1/2 kinase (MEK) levels were significantly upregulated in DEB-exposed human lymphoblasts...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29405767/assessment-of-oxidative-stress-of-platelets-among-chronic-heroin-and-hashish-addicts
#11
M A Bani-Ahmad, A G Mustafa, Aab Ahmad, Ama Rahim
INTRODUCTION: Illicit drugs abuse is associated with several clinical life-threatening consequences that are primarily mediated by oxidative damage to multiple cellular components with a subsequent cellular dysfunction and death. Primarily, this study aimed to investigate oxidative stress to protein and lipid components of circulatory platelets among chronic heroin and hashish addicts. METHODS: Platelet lysates were prepared from 20 chronic intravenously administrated heroin addicts and 20 chronic smoked hashish addicts...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29405766/urinary-bisphenol-a-levels-in-turkish-girls-with-premature-thelarche
#12
E Durmaz, A Asci, P Erkekoglu, A Balcı, I Bircan, B Koçer-Gumusel
There is a growing concern over the timing of pubertal breast development and its possible association with exposure to endocrine disrupting chemicals (EDCs), such as bisphenol A (BPA). BPA is abundantly used to harden plastics. The aim of this study was to investigate the relation between premature thelarche (PT) and BPA by comparing the urinary BPA levels of PT girls with those of healthy subjects. Twenty-five newly diagnosed nonobese PT subjects (aged 4-8 years) who were admitted to the Pediatric Endocrinology Department at Akdeniz University were recruited...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29405765/palladium-nanoparticle-effects-on-endocrine-reproductive-system-of-female-rats
#13
V Leso, L Fontana, A Marinaccio, K Leopold, C Fanali, D Lucchetti, A Sgambato, I Iavicoli
The widespread industrial application of nanomaterials (NMs) has dramatically increased the likelihood of environmental and occupational exposure of humans to such xenobiotics. This issue, together with the increasing public health interest in understanding the effects of chemicals on endocrine system, encouraged to investigate the disruptive potential of NMs on the endocrine function. Therefore, the aim of this study was to evaluate the effects of palladium nanoparticles (Pd-NPs) on the female reproductive system of Wistar rats, intravenously exposed to different doses (0...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29350052/protective-mechanisms-of-6-gingerol-in-dextran-sulfate-sodium-induced-chronic-ulcerative-colitis-in-mice
#14
B O Ajayi, I A Adedara, E O Farombi
Ulcerative colitis (UC) is a relapsing and remitting inflammatory disease of the colon, with an increasing incidence worldwide. 6-Gingerol (6G) is a bioactive constituent of Zingiber officinale, which has been reported to possess various biological activities. This study was designed to evaluate the role of 6G in chronic UC. Chronic UC was induced in mice by three cycles of 2.5% dextran sulfate sodium (DSS) in drinking water. Each cycle consisted of 7 days of 2.5% DSS followed by 14 days of normal drinking water...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29308674/the-role-of-molecular-modelling-strategies-in-validating-the-effects-of-chrysin-on-sodium-arsenite-induced-chromosomal-and-dna-damage
#15
S Babangida, S Ibrahim, A Muhammad, D E Arthur, A Uzairu, A Garba
Chrysin (CHR) is a food-based bioactive ingredient whereas, sodium arsenite (SA) is one of the major contaminant in drinking water. When ingested, SA contributes to tissue damage due to bioactivation by S-adenosyl methionine (SAM)-dependent methyltransferase. Hence, the needs to nullify this effect by investigating the potentials of CHR on SA-induced genotoxicity in rats. The experiment was divided into two successive stages (ameliorative and preventive, curative studies) for 1 week. Rats were divided into four groups: distilled water, 10mg/kg SA, 10mg/kg CHR and co-administration...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29308673/glial-fibrillary-acidic-protein-as-a-prognostic-marker-of-acute-ischemic-stroke
#16
G Liu, J Geng
BACKGROUND: We investigated the association between serum levels of glial fibrillary acidic protein (GFAP) and stroke functional outcomes in a cohort of 286 patients with acute ischemic stroke (AIS). METHODS: We prospectively studied 286 patients with AIS who were admitted within 24 h after the onset of symptoms. Serum levels of GFAP and National Institutes of Health Stroke Scale (NIHSS) were measured at admission. The primary end point was stroke functional outcome among 1-year after stroke onset...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29357763/s-phase-arrest-in-lymphocytes-induced-by-urinary-1-hydroxypyrene-and-alcohol-drinking-in-coke-oven-workers
#17
J Yang, H Zhang, H Zhang, B Pan, W Wang, Y Fan, Y Liu
Arrest of the cell cycle after DNA damage is believed to promote DNA repair. We aim to investigate the main factors affecting cell cycle arrest of lymphocytes in coke oven workers. A total of 600 workers were included in this study, and their urinary levels of four polycyclic aromatic hydrocarbons (PAH) metabolites, 8-hydroxydeoxyguanosine (8-OHdG), and cell cycle distribution were determined. Urinary PAH metabolites were significantly increased in coke oven workers ( p < 0.01). It was found that only urinary 2-hydroxynaphthalene and 1-hydroxypyrene showed significant positive linear dose-response effects on 8-OHdG in this study population ( ptrend = 0...
March 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29320941/progressive-delayed-respiratory-complications-of-sulfur-mustard-poisoning-in-43-iranian-veterans-three-decades-after-exposure
#18
E Darchini-Maragheh, M Balali-Mood, M Malaknezhad, S R Mousavi
The most common delayed complication of sulfur mustard (SM) poisoning has been observed in the respiratory tracts. It was thus aimed to investigate the delayed respiratory complications in SM-exposed patients around 25 years before the study. Forty-three veterans with more than 25% disability of due to SM poisoning were investigated. Clinical examinations as well as pulmonary function test (PFT) were performed. High-resolution computed tomography (HRCT) of the lungs was done as clinically indicated. Triad of chronic cough, dyspnea, and expectoration were the most common symptoms that were recorded in 88...
February 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29320940/methylation-mediated-loss-of-sfrp2-enhances-invasiveness-of-non-small-cell-lung-cancer-cells
#19
X Zhang, X Rong, Y Chen, L Su
The malignancy of non-small cell lung cancer (NSCLC) largely results from its invasive manner. Secreted frizzled-related proteins (SFRPs) have been recently found to suppress the invasiveness of some cancers. On the other hand, the methylation of SFRPs increases protein degradation to reduce the activity of SFRPs, resulting in increased tumor cell invasion and cancer metastasis. However, the role of SFRPs in the invasion of NSCLC has not been reported. Here we analyzed the regulation of SFRPs in NSCLC cells and its effects on cell invasion...
February 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29233034/base-deficit-is-a-predictor-of-mortality-in-organophosphate-insecticide-poisoning
#20
S B Lee, C Kang, D H Kim, T Kim, S H Lee, J H Jeong, S C Kim, D Y Rhee, D Lim
OBJECTIVE: Organophosphate insecticide (OPI) self-poisoning is a major medical problem in many countries. Several studies have demonstrated that the base deficit (BD) is a prognostic tool that is correlated with the severity of injury and predicted mortality, particularly in trauma patients. Here, we aimed to investigate the prognostic significance of BD in OPI poisoning. METHODS: This retrospective observational study was conducted between January 1, 2006, and January 31, 2015, at a single emergency department (ED)...
February 2018: Human & Experimental Toxicology
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