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hepatotoxic drugs

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https://www.readbyqxmd.com/read/27909995/solithromycin-a-novel-fluoroketolide-for-the-treatment-of-community-acquired-bacterial-pneumonia
#1
REVIEW
George G Zhanel, Erika Hartel, Heather Adam, Sheryl Zelenitsky, Michael A Zhanel, Alyssa Golden, Frank Schweizer, Bala Gorityala, Philippe R S Lagacé-Wiens, Andrew J Walkty, Alfred S Gin, Daryl J Hoban, Joseph P Lynch, James A Karlowsky
Solithromycin is a novel fluoroketolide developed in both oral and intravenous formulations to address increasing macrolide resistance in pathogens causing community-acquired bacterial pneumonia (CABP). When compared with its macrolide and ketolide predecessors, solithromycin has several structural modifications which increase its ribosomal binding and reduce its propensity to known macrolide resistance mechanisms. Solithromycin, like telithromycin, affects 50S ribosomal subunit formation and function, as well as causing frame-shift errors during translation...
December 1, 2016: Drugs
https://www.readbyqxmd.com/read/27906037/integrated-therapy-for-hiv-and-cryptococcosis
#2
REVIEW
Sirawat Srichatrapimuk, Somnuek Sungkanuparph
Cryptococcosis has been one of the most common opportunistic infections and causes of mortality among HIV-infected patients, especially in resource-limited countries. Cryptococcal meningitis is the most common form of cryptococcosis. Laboratory diagnosis of cryptococcosis includes direct microscopic examination, isolation of Cryptococcus from a clinical specimen, and detection of cryptococcal antigen. Without appropriate treatment, cryptococcosis is fatal. Early diagnosis and treatment is the key to treatment success...
November 29, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27901623/autotransplantation-of-spleen-mitigates-drug-induced-liver-damage-in-splenectomized-mice
#3
Sabrine Teixeira Ferraz Grunewald, Alice Belleigoli Rezende, Bárbara Bruna Muniz Figueiredo, Ana Carolina de Paula Mendonça, Caroline de Souza Almeida, Erick Esteves de Oliveira, Flávia de Paoli, Henrique Couto Teixeira
PURPOSE: The spleen presents numerous functions, including the production of immunoglobulins and blood filtration, removing microorganisms and cellular debris. The spleen also has anatomical and functional relationship with the liver, but there are few studies on this topic. The aim of this study was to assess the effect of splenectomy and autologous spleen transplantation on both filtering functions of spleen and acetaminophen-induced hepatotoxicity. MATERIALS AND METHODS: Fifty-two BALB/c mice were randomized into four groups: splenectomized; splenectomy and splenic autotransplantation in the greater omentum; sham operated control; and non-operated control...
November 30, 2016: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/27896850/zebrafish-larva-as-a-reliable-model-for-in-vivo-assessment-of-membrane-remodeling-involvement-in-the-hepatotoxicity-of-chemical-agents
#4
Normand Podechard, Martine Chevanne, Morgane Fernier, Arnaud Tête, Aurore Collin, Doris Cassio, Olivier Kah, Dominique Lagadic-Gossmann, Odile Sergent
The easy-to-use in vivo model, zebrafish larva, is being increasingly used to screen chemical-induced hepatotoxicity, with a good predictivity for various mechanisms of liver injury. However, nothing is known about its applicability in exploring the mechanism called membrane remodeling, depicted as changes in membrane fluidity or lipid raft properties. The aim of this study was, therefore, to substantiate the zebrafish larva as a suitable in vivo model in this context. Ethanol was chosen as a prototype toxicant because it is largely described, both in hepatocyte cultures and in rodents, as capable of inducing a membrane remodeling leading to hepatocyte death and liver injury...
November 28, 2016: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/27896593/biochemical-and-oxidative-stress-markers-in-the-liver-and-kidneys-of-rats-submitted-to-different-protocols-of-anabolic-steroids
#5
Guilherme Lopes Dornelles, Andressa Bueno, Juliana Sorraila de Oliveira, Aleksandro Schafer da Silva, Raqueli Teresinha França, Cássia Bagolin da Silva, Márcia Silveira Netto Machado, Letícia do Santos Petry, Fátima Husein Abdalla, Cibele Lima Lhamas, Cinthia Melazzo de Andrade
The objective of this study was to evaluate the effects of different protocols (P1, P2, and P3) of boldenone undecylenate (BU) and stanozolol (ST) on markers of liver and kidney function and variables of oxidative stress in these organs. For this, 54 male Wistar rats were divided into nine groups of six animals each. Each animal received intramuscularly 5.0 mg kg(-1) of BU or ST once a week for 4 weeks (P1); 2.5 mg kg(-1) of BU or ST once a week for 8 weeks (P2); and 1.25 mg kg(-1) of BU or ST once a week for 12 weeks (P3)...
November 28, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27890005/mechanism-based-inhibitors-from-phytomedicine-risks-of-hepatotoxicity-and-their-potential-hepatotoxic-substructures
#6
Lili Wang, Xin He, Chunhuan Jin, Gregory Ondieki
The adverse reactions and side effects associated with use of herbal medicines, especially their damaging effects on the liver have increasingly been reported worldwide. Some of the herbal ingredients have the potential risk of herb-induced liver injury but their hepatotoxicity mechanisms and associated risk factors are not well characterized until now. Xenobiotics are catalyzed by cytochrome P450 enzymes into highly reactive metabolites, which can covalently bind to the enzyme itself and subsequently cause mechanism-based inhibition (MBI)...
November 23, 2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/27871602/hepatotoxicity-due-to-red-bush-tea-consumption-a-case-report
#7
Shamantha Reddy, Pragnyadipta Mishra, Sana Qureshi, Singh Nair, Tracey Straker
Many conventional drugs used today, including isoniazid, dapsone, and acetaminophen, are well recognized culprits of hepatotoxicity. With increasing use of complementary and alternative medical therapies, several herbal medicines, such as Ma-Huang, kava, and chaparral leaf, have been implicated as hepatotoxins. Hepatotoxicity may be the most frequent adverse reaction to these herbal remedies when taken in excessive quantities. A myriad of liver dysfunctions may occur including transient liver enzyme abnormalities due to acute and chronic hepatitis...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27868466/double-blind-placebo-controlled-1-1-randomized-phase-iii-clinical-trial-of-immunoxel-honey-lozenges-as-an-adjunct-immunotherapy-in-269-patients-with-pulmonary-tuberculosis
#8
Uyanga Batbold, Dmytro O Butov, Galyna A Kutsyna, Narantsetseg Damdinpurev, Elena A Grinishina, Otgonbayar Mijiddorj, Mikola E Kovolev, Khaliunaa Baasanjav, Tatyana S Butova, Munkhburam Sandagdorj, Ochirbat Batbold, Ariungerel Tseveendorj, Erkhemtsetseg Chunt, Svetlana I Zaitzeva, Hanna L Stepanenko, Natalia I Makeeva, Igor V Mospan, Volodymyr S Pylypchuk, John L Rowe, Peter Nyasulu, Vichai Jirathitikal, Allen I Bain, Marina G Tarakanovskaya, Aldar S Bourinbaiar
AIM: Safer and shorter antituberculosis treatment (ATT) regimens represent the unmet medical need. PATIENTS & METHODS: The patients were randomly assigned into two arms: the first (n = 137) received once-daily sublingual honey lozenge formulated with botanical immunomodulator Immunoxel and the second (n = 132) received placebo lozenges along with conventional ATT. Immunoxel and placebo arms were demographically similar: 102 versus 106 had drug-susceptible TB; 28 versus 20 multidrug-resistant TB (MDR-TB); 7 versus 7 extensively drug resistant TB (XDR-TB); and 22 versus 20 TB-HIV...
November 21, 2016: Immunotherapy
https://www.readbyqxmd.com/read/27865386/factors-associated-with-anti-tb-drug-induced-hepatotoxicity-and-genetic-polymorphisms-in-indigenous-and-non-indigenous-populations-in-brazil
#9
Melissa M Heinrich, Verônica M Zembrzuski, Marcos M Ota, Flavia P Sacchi, Raquel L F Teixeira, Pedro H Cabello Acero, Geraldo Marcelo Cunha, Reinaldo Souza-Santos, Julio Croda, Paulo C Basta
Anti-tuberculosis (TB) drugs are responsible for the occurrence of several adverse drug reactions (ADRs), including hepatotoxicity. The aim was to estimate the incidence of hepatotoxicity and its association with genetic polymorphisms and clinical-epidemiological factors by comparing indigenous and non-indigenous TB patients. We investigated clinical-epidemiological variables, serum levels of liver enzymes and NAT2, CYP2E1 and GSTM1 polymorphisms. A non-conditional logistic regression was used to identify the factors associated with hepatotoxicity...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27865233/cyp2e1-polymorphism-acetylator-profiles-and-drug-induced-liver-injury-incidence-of-indonesian-tuberculosis-patients
#10
Dyah A Perwitasari, Lalu M Irham, Endang Darmawan, Ully A Mulyani, J Atthobari
OBJECTIVE: A polymorphism of CYP2E1 may be directly associated with the development of INH hepatotoxicity. We conducted this study to evaluate the association between polymorphisms of CYP2E1, Isoniazid (INH) concentration and the acetylator status of INH in cases of Indonesian tuberculosis patients with drug-induced liver disease (DILI). METHODS: We conducted our study with a cohort design consisting of 55 Indonesian adult tuberculosis (TB) patients. Acetylating phenotypes were studied in using the metabolic ratio of plasma AcHZ/HZ...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27862262/different-effects-of-selective-%C3%AE-1-adrenoceptor-antagonists-nebivolol-or-atenolol-in-acetaminophen-induced-heptatotoxicity-of-rats
#11
Remon R Rofaeil, Maha Yehia Kamel, Walaa Yehia Abdelzaher
Acetaminophen (APAP) overdose is a common cause of acute liver failure and beta blockers are commonly used drugs in clinical practice. This study aims to evaluate the effect of two different beta blockers agents as nebivolol and atenolol against APAP-induced hepatotoxicity. Male wistar rats were treated with APAP (2 g/kg/day, p.o.) to induce hepatotoxicity. Our results showed that nebivolol and atenolol reduced heart rate and blood pressure. Nebivolol (5 mg/kg /day, p.o.) for 14 days has a hepatoprotective effect shown by significant decrease in hepatic injury parameters (serum AST and ALT) with significant suppression of hepatic malondialdehyde (MDA) and nitric oxide (NO) which were elevated with APAP administration...
November 14, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27860156/hepatotoxicity-of-statins-and-other-lipid-lowering-agents
#12
REVIEW
Einar S Björnsson
Statins are generally well tolerated and adverse effects are relatively rare. Clinical trials are underpowered to detect uncommon adverse effects such as idiosyncratic drug-induced liver injury. This review is aimed at covering the current knowledge on the hepatotoxicity associated with statins and other lipid lowering drugs. Both atorvastatin and simvastatin have been associated with more than 50 case reports of liver injury and other statins have been implicated in this type of liver injury as well. Idiosyncratic liver injury due to statins has been reported to occur 1...
November 8, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27853831/role-of-the-lipid-regulated-nf-%C3%AE%C2%BAb-il-6-stat3-axis-in-alpha-naphthyl-isothiocyanate-induced-liver-injury
#13
Zhong-Ze Fang, Naoki Tanaka, Dan Lu, Chang-Tao Jiang, Wei-Hua Zhang, Chunze Zhang, Zuo Du, Zhi-Wei Fu, Peng Gao, Yun-Feng Cao, Hong-Zhi Sun, Zhi-Tu Zhu, Yan Cai, Kristopher W Krausz, Zhi Yao, Frank J Gonzalez
Alpha-naphthyl isothiocyanate (ANIT)-induced liver damage is regarded as a useful model to study drug-induced cholestatic hepatitis. Ultra-performance liquid chromatography coupled with electrospray ionization quadrupole mass spectrometry (UPLC-ESI-QTOF MS)-based metabolomics revealed clues to the mechanism of ANIT-induced liver injury, which facilitates the elucidation of drug-induced liver toxicity. 1-Stearoyl-2-hydroxy-sn-glycero-3-phosphocholine (LPC 18:0) and 1-oleoyl-2-hydroxy-sn-glycero-3-phosphocholine (LPC 18:1) were significantly increased in serum from ANIT-treated mice, and this increase resulted from altered expression of genes encoding the lipid metabolism enzymes Chka and Scd1...
November 16, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27847016/low-prevalence-of-hepatitis-b-and-c-among-tuberculosis-patients-in-duhok-province-kurdistan-are-hbsag-and-anti-hcv-prerequisite-screening-parameters-in-tuberculosis-control-program
#14
Muayad A Merza, Safer M Haji, Abid Mohialdeen Hasan Alsharafani, Shivan U Muhammed
OBJECTIVE/BACKGROUND: Viral hepatitis, particularly hepatitis B virus (HBV) and hepatitis C virus (HCV), infections and tuberculosis (TB) are a global public health concern. Co-infection with HBV or HCV among TB patients may potentiate the risk of hepatotoxicity induced by anti-TB drugs. Hence, the aim of this study was to identify the prevalence of HBV and HCV among TB patients included in the Duhok National Tuberculosis Program (NTP). METHODS: The Duhok NTP Center is a specialized institution in Duhok City, Iraq, concerned with management and follow-up of TB patients...
September 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27843598/cancer-and-liver-cirrhosis-implications-on-prognosis-and-management
#15
REVIEW
Matthias Pinter, Michael Trauner, Markus Peck-Radosavljevic, Wolfgang Sieghart
Liver cirrhosis, the end-stage of every chronic liver disease, is not only the major risk factor for the development of hepatocellular carcinoma but also a limiting factor for anticancer therapy of liver and non-hepatic malignancies. Liver cirrhosis may limit surgical and interventional approaches to cancer treatment, influence pharmacokinetics of anticancer drugs, increase side effects of chemotherapy, render patients susceptible for hepatotoxicity, and ultimately result in a competitive risk for morbidity and mortality...
2016: ESMO Open
https://www.readbyqxmd.com/read/27842778/drug-induced-hepatotoxicity%C3%A2-a-topic-where-we-don-t-know-enough
#16
EDITORIAL
Vinod K Rustgi
No abstract text is available yet for this article.
February 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/27842777/phenotypes-and-pathology-of-drug-induced-liver-disease
#17
REVIEW
Zachary D Goodman
Drug hepatotoxicity can simulate nearly any clinical syndrome or pathologic lesion that may occur in the liver, so clinical and histopathologic diagnosis of drug-induced liver injury may be difficult. Nevertheless, most drugs that are known to idiosyncratic liver injury tend to cause patterns of injury that produce characteristic phenotypes. Recognition of these patterns or phenotypes in liver biopsy material is helpful in evaluation of clinical cases of suspected drug-induced liver injury.
February 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/27842776/adverse-drug-reactions-type-a-intrinsic-or-type-b-idiosyncratic
#18
REVIEW
Carlo J Iasella, Heather J Johnson, Michael A Dunn
Hepatotoxic adverse drug reactions are associated with significant morbidity and mortality and are the leading cause of postmarketing regulatory action in the United States. They are classified as Type A (intrinsic) or Type B (idiosyncratic). Type A are predictable, dose-related toxicities, often identified in preclinical or clinical trials, and usually occur in overdose settings or with pre-existing hepatic impairment. Type B are not clearly related to increasing dose and are associated with drug-specific and patient-specific characteristics and environmental risks...
February 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/27842775/epidemiology-and-genetic-risk-factors-of-drug-hepatotoxicity
#19
REVIEW
Jawad Ahmad, Joseph A Odin
Idiosyncratic drug-induced liver injury (DILI) from prescription medications and herbal and dietary supplements has an annual incidence rate of approximately 20 cases per 100,000 per year. However, the risk of DILI varies greatly according to the drug. In the United States and Europe, antimicrobials are the commonest implicated agents, with amoxicillin/clavulanate the most common, whereas in Asian countries, herbal and dietary supplements predominate. Genetic analysis of DILI is currently limited, but multiple polymorphisms of human leukocyte antigen genes and genes involved in drug metabolism and transport have been identified as risk factors for DILI...
February 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/27842774/mechanisms-of-drug-induced-hepatotoxicity
#20
REVIEW
Amina Ibrahim Shehu, Xiaochao Ma, Raman Venkataramanan
Drug-induced hepatotoxicity (DIH) is a significant cause of acute liver failure and liver transplantation. Diagnosis is challenging due to the idiosyncratic nature, its presentation in the form of other liver disease, and the lack of a definite diagnostic criteria. Generation of reactive metabolites, oxidative stress, and mitochondrial dysfunction are common mechanisms involved in DIH. Certain risk factors associated with a drug and within an individual further predispose patients to DIH.
February 2017: Clinics in Liver Disease
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