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Nitrite oxide hepatic

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https://www.readbyqxmd.com/read/28866420/protective-effects-of-phloridzin-against-methotrexate-induced-liver-toxicity-in-rats
#1
Mohamed M A Khalifa, Adel G Bakr, Adel T Osman
BACKGROUND: Liver is the largest internal organ concerning with metabolism, hormonal balance and clarifying of the toxins. One of the main complications of methotrexate (MTX) therapy was the hepatic injury. OBJECTIVE: This study was conducted to elucidate the possible protective effects of phloridzin (PHL) against MTX-induced hepatotoxicity as compared to standard agent N-acetylcysteine (NAC). MATERIALS AND METHODS: Rats were randomly divided into a normal control group, a respective group (PHL 40mg/kg/day orally (p...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28833918/attenuation-of-dna-damage-and-mrna-gene-expression-in-hypoxic-rats-using-natural-antioxidants
#2
Laila Mohamed Fadda, Hala A Attia, Nouf Mohamed Al-Rasheed, Hanaa Mahmoud Ali, Manal Aldossari
This study aimed to explore the efficiency of carnosine (Cs) and/or l-arginine (Agn) in the downregulation of apoptotic and inflammatory molecule expression and DNA damage caused hepatic injury in response to sodium nitrite (Sd)-induced hypoxia in rats. Rats were injected with Sd; Agn or/and Cs were administrated prior to Sd intoxication. Sd significantly decreased hemoglobin concentration and Bcl-2 mRNA expression, while increased expressions of apoptotic markers (Bax and caspase), tumor necrosis factor-α, nuclear factor kappa B, and C-reactive protein and the oxidative DNA damage in hepatic tissue...
August 17, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28830212/heat-processed-scutellariae-radix-protects-hepatic-inflammation-through-the-amelioration-of-oxidative-stress-in-lipopolysaccharide-induced-mice
#3
Chan Hum Park, Mi-Rae Shin, Byung Kwan An, Hyun Woo Joh, Jang Cheon Lee, Seong-Soo Roh, Takako Yokozawa
The present study evaluated the effects of heat-processed Scutellariae Radix (Scutellaria baicalensis) on lipopolysaccharide (LPS)-induced liver injury in mice. Scutellariae Radix heat-processed at 160[Formula: see text]C or 180[Formula: see text]C was orally administered at a dose of 100 mg/kg body weight for three days before the intraperitoneal injection of LPS, and the effects were compared with those of vehicle-treated LPS administered to control mice. The administration of Scutellariae Radix decreased the elevated serum monocyte chemotactic protein-1 (MCP-1), interleukin-6 (IL-6), reactive oxygen species (ROS), nitrite/nitrate, peroxynitrite, and hepatic functional parameters, and reduced the increased ROS in the liver...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28427398/euphorbia-dracunculoides-l-abrogates-carbon-tetrachloride-induced-liver-and-dna-damage-in-rats
#4
Riffat Batool, Muhammad Rashid Khan, Muhammad Majid
BACKGROUND: Evaluation of Euphorbia dracunculoides of family Euphorbiaceae during previous studies had established the in vitro antioxidant and in vivo anti-inflammatory activities. The plant is used by the local communities of Pakistan for various disorders including rheumatism and edema. In this investigation we have evaluated the hepatoprotective effects against CCl4 induced toxicity in rat. METHODS: Dry powder of the aerial parts of E. dracunculoides was extracted with 95% methanol to get the extract (EDME)...
April 20, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28357909/nitrite-enhances-liver-graft-protection-against-cold-ischemia-reperfusion-injury-through-a-nos-independent-pathway
#5
Amani Cherif-Sayadi, Kaouther Hadj Ayed-Tka, Mohamed Amine Zaouali, Mohamed Bejaoui, Najet Hadj-Abdallah, Ahlem Bouhlel, Hassen Ben Abdennebi
INTRODUCTION: Nitrite has been found to protect liver graft from cold preservation injury. However, the cell signaling pathway involved in this protection remains unclear. Here, we attempt to clarify if the NOS pathway by using the NOS inhibitor, L-NAME (L-N(G)-Nitroarginine methyl ester). ANIMALS AND METHODS: Rat livers were conserved for 24 h at 4°C in (IGL-1) solution enriched or not with nitrite at 50 nM. In a third group, rats were pretreated with 50 mg/kg of L-NAME before their liver procurement and preservation in IGL-1 supplemented with nitrite (50 nM) and L-NAME (1 mM)...
December 2017: Libyan Journal of Medicine
https://www.readbyqxmd.com/read/28334048/hepatoprotective-effect-of-sitagliptin-against-methotrexate-induced-liver-toxicity
#6
Hany M Abo-Haded, Mohamed A Elkablawy, Zeyad Al-Johani, Osama Al-Ahmadi, Dina S El-Agamy
Sitagliptin is selective dipeptidyl peptidase-4 inhibitor (DPP4-I), used clinically as a new oral anti-diabetic agent. This study explored the underlying mechanisms of the hepatoprotective role of sitagliptin pretreatment against methotrexate (MTX) induced hepatotoxicity in mice. Forty mice were divided into four groups (10 mice each); control, MTX, and two sitagliptin groups (pretreated with sitagliptin 10 and 20 mg/kg/day, respectively) for five consecutive days prior to MTX injection. Results showed that MTX induced marked hepatic injury in the form of cloudy swelling, hydropic degeneration, apoptosis and focal necrosis in all hepatic zones...
2017: PloS One
https://www.readbyqxmd.com/read/28106120/altered-glucose-and-lipid-homeostasis-in-liver-and-adipose-tissue-pre-dispose-inducible-nos-knockout-mice-to-insulin-resistance
#7
Babu Nageswararao Kanuri, Jitendra S Kanshana, Sanjay C Rebello, Priya Pathak, Anand P Gupta, Jiaur R Gayen, Kumaravelu Jagavelu, Madhu Dikshit
On the basis of diet induced obesity and KO mice models, nitric oxide is implied to play an important role in the initiation of dyslipidemia induced insulin resistance. However, outcomes using iNOS KO mice have so far remained inconclusive. The present study aimed to assess IR in iNOS KO mice after 5 weeks of LFD feeding by monitoring body composition, energy homeostasis, insulin sensitivity/signaling, nitrite content and gene expressions changes in the tissues. We found that body weight and fat content in KO mice were significantly higher while the respiratory exchange ratio (RER), volume of carbon dioxide (VCO2), and heat production were lower as compared to WT mice...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104448/metformin-and-low-dose-radiation-modulates-cisplatin-induced-oxidative-injury-in-rat-via-ppar-%C3%AE-and-mapk-pathways
#8
Heba H Mansour, Shereen M El Kiki, Shereen M Galal
Cisplatin (CIS) is a chemotherapeutic agent used for therapy of many tumors and has been limited by its toxicity. The aim of this study was to investigate the role of Peroxisome proliferator-activated receptor-gamma (PPAR-γ), mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B(NFkB) in the pathogenesis of hepatic damage induced by CIS, and investigated the modulatory effect of metformin (MET) and/or low dose gamma radiation (LDR) on CIS-induced hepatotoxicity in rats. CIS(7.5 mg/kg, i.p.) hepatotoxicity was evidenced by alteration of serum hepatic indices (ALT and AST) accompanied with decreased hepatic PPAR-γ, superoxide dismutase (SOD) activities and reduced glutathione (GSH) content, whereas the levels of malondialdehyde (MDA), total nitrate/nitrite (NOx) and NFkB significantly increased as well as MAPK activity compared with the control, MET and LDR groups...
February 15, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28064552/the-novel-role-of-%C3%AE-aescin-in-attenuating-ccl4-induced-hepatotoxicity-in-rats
#9
Harsimran Singh, Shabir Sidhu, Kanwaljit Chopra, M U Khan
CONTEXT: β-Aescin has anti-inflammatory, anti-oxidant and antiedematous properties. OBJECTIVE: The present study investigated the hepatoprotective effect and underlying mechanisms of β-aescin in CCl4-induced liver damage. MATERIALS AND METHODS: Thirty-five Wistar rats were divided into six groups: normal control, CCl4 control, silymarin (50 mg/kg, p.o) and β-aescin (0.9, 1.8 and 3.6 mg/kg, i.p.) treatment for 14 d. CCl4 (1 mL/kg, i...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28027943/fowl-typhoid-in-laying-hens-cause-hepatic-oxidative-stress
#10
Angelisa H Biazus, Aleksandro S Da Silva, Nathieli B Bottari, Matheus D Baldissera, Guilherme M do Carmo, Vera M Morsch, Maria Rosa C Schetinger, Renata Casagrande, Naiara S Guarda, Rafael N Moresco, Lenita M Stefani, Gabriela Campigotto, Marcel M Boiago
The aim of this study was to analyses nitric oxide, antioxidant status, and oxidative profile in the liver of laying hens naturally infected by Salmonella enterica subsp enterica serovar Gallinarum (S. Gallinarum). The nitrite/nitrate (NOx), reactive oxygen species (ROS), thiobarbituric acid-reactive substances (TBARS), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GPx) and glutathione S-transferase (GST) activities were measured in liver samples, as well the biomarkers of hepatic function (alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyltransferase (GGT), total protein and albumin levels measured in serum...
February 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27829805/effect-of-amlodipine-lisinopril-and-allopurinol-on-acetaminophen-induced-hepatotoxicity-in-rats
#11
Nesreen E M Mohammed, Basim A S Messiha, Ali A Abo-Saif
BACKGROUND: Exposure to chemotherapeutic agents such as acetaminophen may lead to serious liver injury. Calcium deregulation, angiotensin II production and xanthine oxidase activity are suggested to play mechanistic roles in such injury. OBJECTIVE: This study evaluates the possible protective effects of the calcium channel blocker amlodipine, the angiotensin converting enzyme inhibitor lisinopril, and the xanthine oxidase inhibitor allopurinol against experimental acetaminophen-induced hepatotoxicity, aiming to understand its underlying hepatotoxic mechanisms...
November 2016: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/27821159/ceratonia-siliqua-pod-extract-ameliorates-schistosoma-mansoni-induced-liver-fibrosis-and-oxidative-stress
#12
Ebtesam M Al-Olayan, Manal F El-Khadragy, Reem A Alajmi, Mohamed S Othman, Amira A Bauomy, Shaimaa R Ibrahim, Ahmed E Abdel Moneim
BACKGROUND: Schistosomiasis is a prevalent parasitic disease found predominantly in tropical and sub-tropical areas of the developing world, with the second highest socioeconomic and public health burden despite strenuous control efforts. In the present study, we aimed to investigate the ameliorative effects of Ceratonia siliqua pod extract (CPE) on liver fibrosis and oxidative stress in mice infected with Schistosoma mansoni. METHODS: The schistosomal hepatopathologic mouse model was established by tail immersion with schistosomal cercaria...
November 8, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27820841/metformin-ameliorates-dysfunctional-traits-of-glibenclamide-and-glucose-induced-insulin-secretion-by-suppression-of-imposed-overactivity-of-the-islet-nitric-oxide-synthase-no-system
#13
Ingmar Lundquist, Israa Mohammed Al-Amily, Sandra Meidute Abaraviciene, Albert Salehi
Metformin lowers diabetic blood glucose primarily by reducing hepatic gluconeogenesis and increasing peripheral glucose uptake. However, possible effects by metformin on beta-cell function are incompletely understood. We speculated that metformin might positively influence insulin secretion through impacting the beta-cell nitric oxide synthase (NOS)-NO system, a negative modulator of glucose-stimulated insulin release. In short-time incubations with isolated murine islets either glibenclamide or high glucose augmented insulin release associated with increased NO production from both neural and inducible NOS...
2016: PloS One
https://www.readbyqxmd.com/read/27791173/prolactin-alters-blood-pressure-by-modulating-the-activity-of-endothelial-nitric-oxide-synthase
#14
Albert S Chang, Ruriko Grant, Hirofumi Tomita, Hyung-Suk Kim, Oliver Smithies, Masao Kakoki
Increased levels of a cleaved form of prolactin (molecular weight 16 kDa) have been associated with preeclampsia. To study the effects of prolactin on blood pressure (BP), we generated male mice with a single-copy transgene (Tg; inserted into the hypoxanthine-guanine phosphoribosyltransferase locus) that enables inducible hepatic production of prolactin and its cleavage product. The Tg is driven by the indole-3-carbinol (I3C)-inducible rat cytochrome P450 1A1 promoter. When the Tg mice were fed normal chow (NC), plasma prolactin concentrations were comparable to those in female WT mice in the last third of pregnancy, and BP was lower than in WT mice (∼95 mm Hg vs...
November 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27687454/dexmedetomidine-acts-as-an-oxidative-damage-prophylactic-in-rats-exposed-to-ionizing-radiation
#15
Dilek Kutanis, Engin Erturk, Ahmet Besir, Yucel Demirci, Selcuk Kayir, Ali Akdogan, Birgul Vanizor Kural, Zumrut Bahat, Emine Canyilmaz, Hanife Kara
STUDY OBJECTIVE: To investigate the effects of dexmedetomidine on oxidative injury caused by ionizing radiation. DESIGN: Randomized controlled experimental study. SETTING: Department of radiation oncology and research laboratory of an academic hospital. INTERVENTIONS: Twenty-eight rats were randomized to 4 groups (n=7 per group). Group S rats were administered physiologic serum; group SR rats were administered physiologic serum and 10 Gy external ionizing radiation...
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27670067/effects-of-nitrite-addition-to-igl-1-solution-on-rat-liver-preservation
#16
Amani Cherif-Sayadi, Kaouther Hadj Ayed-Tka, Mohamed Bejaoui, Neyla Ben Gdara, Mohamed Amine Zaouali, Hassen Ben Abdennebi
BACKGROUND The ability of nitrite to provide protection following ischemia/reperfusion (I/R) has been demonstrated, but its mechanism is still poorly understood. This study aimed to determine the optimal nitrite concentration to add into Institut Georges Lopez (IGL-1) storage solution and to assess its effect on antioxidant enzymes and autophagy. MATERIAL AND METHODS Livers from Sprague-Dawley rats were conserved in IGL-1 for 24 hours at 4°C or in IGL-1 enriched with nitrite at 50, 500 and 1,000 nM, respectively, before being perfused ex-vivo at 37 °C for 120 minutes...
2016: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/27638633/agmatine-protects-rat-liver-from-nicotine-induced-hepatic-damage-via-antioxidative-antiapoptotic-and-antifibrotic-pathways
#17
Nagla A El-Sherbeeny, Manar A Nader, Ghalia M Attia, Hayam Ateyya
Tobacco smoking with its various forms is a global problem with proved hazardous effects to human health. The present work was planned to study the defending role of agmatine (AGM) on hepatic oxidative stress and damage induced by nicotine in rats. Thirty-two rats divided into four groups were employed: control group, nicotine-only group, AGM group, and AGM-nicotine group. Measurements of serum hepatic biochemical markers, lipid profile, and vascular cell adhesion molecule-1 were done. In addition, malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH) activity, and nitrate/nitrite (NOx) levels were estimated in the liver homogenates...
December 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27546300/inhibition-of-the-jak-stat-pathway-by-ruxolitinib-ameliorates-thioacetamide-induced-hepatotoxicity
#18
Mohamed E Shaker, Sara H Hazem, Sylvia A Ashamallah
In an attempt to explore the role of the JAK/STAT pathway in liver inflammation, we investigated the effect of intervening this pathway by ruxolitinib in thioacetamide (TAA)-induced hepatotoxicity. Ruxolitinib treatments were administered to male mice either before or after intoxication with TAA. The hepatic histopathological and serum biochemical assessment revealed that ruxolitinib pre-treatments dose-dependently reduced TAA-induced liver injury, caspase 3 cleavage and increase in number of hepatocytes positive for the pro-apoptotic Bax, as well as inflammatory cells positive for F4/80 and myeloperoxidase activity in the liver...
October 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27524256/native-prussian-carp-carassius-gibelio-health-status-biochemical-and-histological-responses-to-treated-wastewaters
#19
Natalija Topić Popović, Ivančica Strunjak-Perović, Josip Barišić, Slavko Kepec, Margita Jadan, Blanka Beer-Ljubić, Vesna Matijatko, Dušan Palić, Goran Klobučar, Sanja Babić, Jasenka Gajdoš Kljusurić, Rozelindra Čož-Rakovac
The aim of this study was to assess the impact of treated wastewaters on native wild Prussian carp inhabiting effluent-receiving waters (ERC) receiving municipal and sugar plant treated wastewaters, further downstream waters (DW), and a detached canal unaffected by the WWTP activities. To that end, general fish health status was determined, including plasma biochemical, haematological, oxidative stress and tissue histopathological indices, over three seasons. The greatest tissue alterations were in fall in ERC during sugar beet processing, as hypertrophy of gill epithelial and interlamellar cells, necrosis and lymphocytic infiltration, hyperplasia and hypertrophy of renal tubules, distention of hepatic sinusoids...
November 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27520857/combination-of-vildagliptin-and-pioglitazone-in-experimental-type-2-diabetes-in-male-rats
#20
COMPARATIVE STUDY
Rowaida Refaat, Ahmed Sakr, Mona Salama, Ashgan El Sarha
Preclinical Research The majority of studies on vildagliptin and pioglitazone have focused on their combination in glycemic control. The aim of the present study was to investigate their effects in combination on (i) hyperglycemia-induced oxidative stress and inflammation and (ii) on organs involved in the pathophysiology of diabetes, pancreas, kidney and liver. Type 2 diabetes was induced using low-dose streptozotocin in male Wistar rats. Diabetic rats were treated for 4 weeks, with vildagliptin (10 mg/kg/day), pioglitazone (10 mg/kg/day) and their combination...
September 2016: Drug Development Research
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