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https://www.readbyqxmd.com/read/28728150/fisher-discrimination-of-metabolic-changes-in-rats-treated-with-aspirin-and-ibuprofen
#1
Jing Zhang, Huanchun Song, Shuying Jiang, Zhibin Chen, Shuhua Tong, Feiyan Lin, Congcong Wen, Xiuhua Zhang, Lufeng Hu
BACKGROUND: Aspirin and ibuprofen are the most frequently prescribed non-steroidal anti-inflammatory drugs in the world. However, both are associated with a variety of toxicities. We applied serum metabonomics and Fisher discrimination for the early diagnosis of its toxic reaction in order to help diagnose these toxicities. METHODS: A total of 45 rats were randomly divided into Control group, Aspirin group, and Ibuprofen groups. The experiment groups were given intragastric aspirin (15 mg/kg) or ibuprofen (15 mg/kg) for 3 weeks...
July 21, 2017: Pharmacology
https://www.readbyqxmd.com/read/28727419/next-generation-lipids-in-rna-interference-therapeutics
#2
Stephanie Rietwyk, Dan Peer
RNA is emerging as a potential therapeutic modality for the treatment of incurable diseases. Despite intense research, the advent to clinical utility remains compromised by numerous biological barriers, hence there is a need for sophisticated delivery vehicles. In this aspect, lipid nanoparticles (LNP) are the most advanced platform among non-viral vectors for gene delivery. In this review, we critically review the literature and the reasons for ineffective delivery beyond the liver. We discuss the toxicity issues associated with permanently charged cationic lipids, and then turn our attention to next-generation ionizable cationic lipids...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28727106/increasing-dietary-inclusions-of-camelina-cake-fed-to-pigs-from-weaning-to-slaughter-safety-growth-performance-carcass-traits-and-n-3-enrichment-of-pork
#3
M N Smit, E Beltranena
Feeding cake with remaining oil content not only provides additional dietary energy but may also enrich pork with -3 fatty acids. Limited information is available on feeding camelina cake to pigs relating to feeding safety (toxicity), growth performance, and efficacy of -3 enrichment of pork. Therefore, we evaluated the effects of feeding increasing camelina cake (12.2% crude fat) inclusions in diets for nursery and grower-finisher pigs. In total, 128 pigs (9.2 kg BW) were randomly allocated by sex to 32 nursery pens for 4 wk and were then moved and combined into 16 mixed-sex grower-finisher pens...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727065/effects-of-feeding-camelina-cake-to-weaned-pigs-on-safety-growth-performance-and-fatty-acid-composition-of-pork
#4
M N Smit, E Beltranena
Feeding cake with remaining oil contributes dietary energy (fat) in addition to protein (AA) and may provide an opportunity to enrich the n-3 fatty acid content of pork. Information regarding safety, growth performance, and efficacy of feeding camelina cake to pigs is limited. We therefore evaluated the effects of camelina cake inclusion in pig nursery diets. In total, 192 pigs (9.4 kg BW) were randomly allocated by sex to 48 pens, 2 heavy and 2 light pigs per pen. Pigs were fed 1 of 4 wheat-based diets including camelina cake (0%, 6%, 12%, or 18%; variety Celine) replacing soybean meal for 4 wk...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726775/oroxylin-a-activates-pkm1-hnf4-alpha-to-induce-hepatoma-differentiation-and-block-cancer-progression
#5
Libin Wei, Yuanyuan Dai, Yuxin Zhou, Zihao He, Jingyue Yao, Li Zhao, Qinglong Guo, Lin Yang
Liver cancer is the second cause of death from cancer worldwide, without effective treatment. Traditional chemotherapy for liver cancer has big side effects for patients, whereas targeted drugs, such as sorafenib, commonly have drug resistance. Oroxylin A (OA) is the main bioactive flavonoids of Scutellariae radix, which has strong anti-hepatoma effect but low toxicity to normal tissue. To date, no differentiation-inducing agents have been reported to exert a curative effect on solid tumors. Here our results demonstrated that OA restrained the proliferation and induced differentiation of hepatoma both in vitro and in vivo, via inducing a high PKM1 (pyruvate kinase M1)/PKM2 (pyruvate kinase M2) ratio...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28726718/inhibitory-effects-of-trapping-agents-of-sulfur-drug-reactive-intermediates-against-major-human-cytochrome-p450-isoforms
#6
Jasleen K Sodhi, Erlie Marie Delarosa, Jason S Halladay, James P Driscoll, Teresa Mulder, Patrick M Dansette, S Cyrus Khojasteh
In some cases, the formation of reactive species from the metabolism of xenobiotics has been linked to toxicity and therefore it is imperative to detect potential bioactivation for candidate drugs during drug discovery. Reactive species can covalently bind to trapping agents in in vitro incubations of compound with human liver microsomes (HLM) fortified with β-nicotinamide adenine dinucleotide phosphate (NADPH), resulting in a stable conjugate of trapping agent and reactive species, thereby facilitating analytical detection and providing evidence of short-lived reactive metabolites...
July 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28724419/real-life-clinical-practice-results-with-vinflunine-in-patients-with-relapsed-platinum-treated-metastatic-urothelial-carcinoma-an-italian-multicenter-study-movie-goirc-01-2014
#7
Rodolfo Passalacqua, Silvia Lazzarelli, Maddalena Donini, Rodolfo Montironi, Rosa Tambaro, Ugo De Giorgi, Sandro Pignata, Raffaella Palumbo, Giovanni Luca Ceresoli, Gianluca Del Conte, Giuseppe Tonini, Franco Morelli, Franco Nolè, Stefano Panni, Ermanno Rondini, Annalisa Guida, Paolo Andrea Zucali, Laura Doni, Elisa Iezzi, Caterina Caminiti
BACKGROUND: Vinflunine is the only chemotherapeutic agent shown to improve survival in platinum-refractory patients with metastatic transitional cell carcinoma of the urothelium (TCCU) in a phase III clinical trial, which led to product registration for this indication in Europe. The aim of this study was to assess the efficacy of vinflunine and to evaluate the prognostic significance of risk factors in a large, unselected cohort of patients with metastatic TCCU treated according to routine clinical practice...
July 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28724414/effects-of-feeding-drunken-horse-grass-infected-with-epichlo%C3%A3-gansuensis-endophyte-on-animal-performance-clinical-symptoms-and-physiological-parameters-in-sheep
#8
Ying Liang, Hucheng Wang, Chunjie Li, Zhibiao Nan, Fadi Li
BACKGROUND: Many reports showed that grass-endophyte symbiosis induced livestock poisoned. Yet, there is no study evaluating clinical symptoms and physiological parameters in sheep fed Epichloë gansuensis endophyte-infected grass. The objective of the present study was to investigate these indexes by feeding sheep with endophyte-infected A. inebrians (E+ Group) or endophyte-free A. inebrians (E- Group) drunken horse grass or alfalfa hay (Control Group). RESULTS: The Epichloë endophyte caused obvious toxicity symptoms in the sheep fed E+ A...
July 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28723108/oral-exposure-of-silver-nanoparticles-or-silver-ions-may-aggravate-fatty-liver-disease-in-overweight-mice
#9
Jianbo Jia, Feifei Li, Hongyu Zhou, Yuhong Bai, Sijin Liu, Yiguo Jiang, Guibin Jiang, Bing Yan
As the applications and environmental release of silver ions and nanoparticles are increasing, growing human exposures to these pollutants have become an emerging health concerns. The impeding effects of such pollutants on susceptible populations are severely under-studied. Here, we demonstrate that Ag NPs, at a dose that causes no general toxicity in normal mice, promote the progression of fatty liver disease from steatosis to steatohepatitis only in overweight mice. Exposure to Ag+ ions induces the same effects in overweight mice...
July 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28722244/risk-of-liver-decompensation-with-cumulative-use-of-mitochondrial-toxic-nucleoside-analogues-in-hiv-hepatitis-c-virus-coinfection
#10
Vincent Lo Re Rd, Bret Zeldow, Michael J Kallan, Janet P Tate, Dena M Carbonari, Sean Hennessy, Jay R Kostman, Joseph K Lim, Matthew Bidwell Goetz, Robert Gross, Amy C Justice, Jason A Roy
PURPOSE: Among patients dually infected with human immunodeficiency virus (HIV) and chronic hepatitis C virus (HCV), use of antiretroviral therapy (ART) containing mitochondrial toxic nucleoside reverse transcriptase inhibitors (mtNRTIs) might induce chronic hepatic injury, which could accelerate HCV-associated liver fibrosis and increase the risk of hepatic decompensation and death. METHODS: We conducted a cohort study among 1747 HIV/HCV patients initiating NRTI-containing ART within the Veterans Aging Cohort Study (2002-2009) to determine if cumulative mtNRTI use increased the risk of hepatic decompensation and death among HIV-/HCV-coinfected patients...
July 19, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28721827/melatonin-as-pleiotropic-molecule-with-therapeutic-potential-for-type-2-diabetes-and-cancer
#11
Marzena Wojcik, Michal Krawczyk, Pawel Wojcik, Katarzyna Cypryk, Lucyna Alicja Wozniak
The incidence both of diabetes, particularly type 2 (T2DM), and cancer is increasing worldwide, making these diseases growing global health problem along with increasing healthcare expenditures. The current therapeutic approach for the treatment of these multifactorial diseases is far from satisfactory. Therefore, there is still considerable interest in searching new therapeutic strategies with the use of both natural and synthetic compounds exhibiting higher efficiency and lower toxicity compared to medicines used currently in clinical practice...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28721486/modulatory-effect-of-lycopene-against-carbofuran-toxicity-in-african-catfish-clarias-gariepinus
#12
Heba S Hamed, Alaa G M Osman
In the current study, African catfish, Clarias gariepinus, was exposed to a sublethal concentration of carbofuran (CF) to investigate its negative effects on biochemical and oxidative stress biomarkers. Also, the putative role of lycopene (LYC) administration in alleviating these negative effects was evaluated. Fish were divided into six groups in triplicates as follows: group I was without treatment, group II was orally administered corn oil, group III was orally administered 18 mg LYC/kg body weight, group IV was exposed to 0...
July 18, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28721347/peliosis-hepatis-complicating-pregnancy-a-rare-entity
#13
Muhammad Osama Butt, Nasir Hassan Luck, Syed Mujahid Hassan, Zaigham Abbas, Muhammed Mubarak
Peliosis hepatis (PH) is a rare, benign condition of the liver characterized by the presence of blood-filled lacunar spaces in the parenchyma. It usually has a chronic presentation and is a rare cause of portal hypertension reported in adult patients. Its etiology is diverse and ranges from infectious agents to tumors to toxic substances and anabolic steroids; however, the cause remains unclear in 25-50% of patients. Similarly, the symptomatology and imaging findings are diverse. Biopsy is the definitive test to diagnose the condition...
June 2017: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28721327/two-catastrophes-in-one-patient-drug-reaction-with-eosinophilia-and-systemic-symptoms-and-toxic-shock-syndrome
#14
Moayed Ibrahim, Diana L Nunley
A 70-year-old, immunocompromised patient presented to the emergency room (ER) five weeks after she was started on clopidogrel. She complained of skin eruption, mouth ulcers, fatigue, and myalgia over the past two weeks. Labs showed severe hyponatremia, acute kidney injury, rhabdomyolysis, hyperkalemia, and elevated liver enzymes. She was treated with steroids and discharged after her condition improved. However, a month later, she returned to the ER, complaining of nausea, vomiting, diarrhea, dizziness, chills, and shortness of breath over the past two days...
June 15, 2017: Curēus
https://www.readbyqxmd.com/read/28720487/pdms-b-pmoxa-polymersomes-for-hepatocyte-targeting-and-assessment-of-toxicity
#15
Klara Kiene, Susanne H Schenk, Fabiola Porta, Alexandra Ernst, Dominik Witzigmann, Philip Grossen, Jörg Huwyler
Nanoparticles, such as polymersomes, can be directed to the hepatic asialoglycoprotein receptor to achieve targeted drug delivery. In this study, we prepared asialofetuin conjugated polymersomes based on the amphiphilic di-block copolymer poly(dimethylsiloxane)-b-poly(2-methyloxazoline) (PDMS-b-PMOXA). They had an average diameter of 150nm and formed monodisperse vesicles. Drug encapsulation and sustained release was monitored using the hydrophilic model compound carboxyfluorescein. Asialoglycoprotein receptor specific uptake by HepG2 cells in vitro was energy dependent and could be competitively inhibited by the free targeting ligand...
July 15, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28719975/toxicological-effects-of-aqueous-extract-from-african-walnut-tetracarpidium-conophorum-leaves-in-rats
#16
Seun F Akomolafe, Ganiyu Oboh, Sunday I Oyeleye, Tosin A Olasehinde
Tetracarpidium conophorum leaves are used in traditional medicine for the treatment of male infertility, without considering its toxicity and side effects. In this study, we investigated the effects of T conophorum leaves on some biochemical parameters such as alanine aminotransferase, aspartate aminotransferase, bilirubin, albumin, creatinine, and uric acid. Histology of the liver and kidney were also assessed. The result revealed that the alanine aminotransferase and aspartate aminotransferase levels of the control group were not significantly different from the experimental groups...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28719149/cadmium-induced-toxicity-is-rescued-by-curcumin-a-review
#17
REVIEW
Mohammad Mohajeri, Mehdi Rezaee, Amirhossein Sahebkar
Cadmium (Cd) is one of the most common environmental and occupational heavy metals with extended distribution. Exposure to Cd may be associated with several deleterious consequences on the liver, bones, kidneys, lungs, testes, brain, immunological, and cardiovascular systems. Overproduction of reactive oxygen species (ROS) as the main mechanism behind its toxicity causes oxidative stress and subsequent damages to lipids, proteins, and DNA. Therefore, antioxidants along with chelating agents have shown promising outcomes against Cd-induced toxicity...
July 18, 2017: BioFactors
https://www.readbyqxmd.com/read/28718025/reduction-of-individual-or-combined-toxicity-of-fumonisin-b1-and-zearalenone-via-dietary-inclusion-of-organo-modified-nano-montmorillonite-in-rats
#18
Aziza A El-Nekeety, Ahmed A El-Kady, Khaled G Abdel-Wahhab, Nabila S Hassan, Mosaad A Abdel-Wahhab
Fusarium mycotoxins are nature environmental contaminants worldwide in animal feed and human food resulting in a serious health risk. The present study aimed to evaluate the potential role of organo-modified nano-montmorillonite (OMNM) against the health risk and the oxidative stress resulted from the exposure of fumonisin (FB1) and zearalenone (ZEN) individually and in combination in rats. Eight groups of female Sprague Dawley rats were treated orally for 3 weeks including the control group, FB1 alone-treated group (50 mg/kg b...
July 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28717878/the-isolation-of-primary-hepatocytes-from-human-tissue-optimising-the-use-of-small-non-encapsulated-liver-resection-surplus
#19
Charlotte J Green, Catriona A Charlton, Lai-Mun Wang, Michael Silva, Karl J Morten, Leanne Hodson
Two-step perfusion is considered the gold standard method for isolating hepatocytes from human liver tissue. As perfusion may require a large tissue specimen, which is encapsulated and has accessible vessels for cannulation, only a limited number of tissue samples may be suitable. Therefore, the aim of this work was to develop an alternative method to isolate hepatocytes from non-encapsulated and small samples of human liver tissue. Healthy tissue from 44 human liver resections were graded for steatosis and tissue weights between 7...
July 17, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28717830/a-review-of-drug-induced-liver-injury-databases
#20
REVIEW
Guangwen Luo, Yiting Shen, Lizhu Yang, Aiping Lu, Zheng Xiang
Drug-induced liver injuries have been a major focus of current research in drug development, and are also one of the major reasons for the failure and withdrawal of drugs in development. Drug-induced liver injuries have been systematically recorded in many public databases, which have become valuable resources in this field. In this study, we provide an overview of these databases, including the liver injury-specific databases LiverTox, LTKB, Open TG-GATEs, LTMap and Hepatox, and the general databases, T3DB, DrugBank, DITOP, DART, CTD and HSDB...
July 17, 2017: Archives of Toxicology
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