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https://www.readbyqxmd.com/read/29786565/modelling-non-alcoholic-fatty-liver-disease-in-human-hepatocyte-like-cells
#1
Marcus J Lyall, Jessy Cartier, John P Thomson, Kate Cameron, Jose Meseguer-Ripolles, Eoghan O'Duibhir, Dagmara Szkolnicka, Baltasar Lucendo Villarin, Yu Wang, Giovanny Rodriguez Blanco, Warwick B Dunn, Richard R Meehan, David C Hay, Amanda J Drake
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of liver disease in developed countries. An in vitro NAFLD model would permit mechanistic studies and enable high-throughput therapeutic screening. While hepatic cancer-derived cell lines are a convenient, renewable resource, their genomic, epigenomic and functional alterations mean their utility in NAFLD modelling is unclear. Additionally, the epigenetic mark 5-hydroxymethylcytosine (5hmC), a cell lineage identifier, is rapidly lost during cell culture, alongside expression of the Ten-eleven-translocation ( TET ) methylcytosine dioxygenase enzymes, restricting meaningful epigenetic analysis...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29782308/activation-of-herpes-simplex-infection-after-tattoo
#2
Antigona Begolli Gerqari, Mybera Ferizi, Merita Kotori, Aferdita Daka, Syzana Hapciu, Ilir Begolli, Mirije Begolli, Idriz Gerqari
Tattooing is a procedure where ink is applied to an area of the skin, mostly intraepidermally (1). This procedure is carried out mainly for aesthetic purposes. Lately, it has been used as a corrective medical procedure following amputation of mammilla. The procedure is aggressive (2), and the fact that skin is punctured many times with the same needle which cannot be fully sterilized may cause infection of the treated area with bacterial, fungal, or viral agents that may lead to health consequences manifesting in the form of verrucae vulgaris, molluscum contagiosum, and herpes simplex...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29778932/dynamics-of-paralytic-shellfish-toxins-and-their-metabolites-during-timecourse-exposure-of-scallops-chlamys-farreri-and-mussels-mytilus-galloprovincialis-to-alexandrium-pacificum
#3
Jiangbing Qiu, Fanping Meng, Ling Ding, Yijia Che, Pearse McCarron, Daniel G Beach, Aifeng Li
New C-11 hydroxyl metabolites of paralytic shellfish toxins (PSTs) have been reported in shellfish. To gain further information on these metabolites, as well as the potential for formation of phase-II metabolites and acyl esters of PSTs, bivalves were fed with the PSTs-producing dinoflagellate Alexandrium pacificum (strain ATHK). Through independent experiments, scallops (Chlamys farreri) were fed for 9 days and mussels (Mytilus galloprovincialis) for 5 days plus an additional 5 days of depuration, with representative samples taken throughout...
May 16, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29777752/chemical-profile-and-pharmacological-effects-of-the-resin-and-essential-oil-from-bursera-slechtendalii-a-medicinal-copal-tree-of-southern-mexico
#4
Nemesio Villa-Ruano, Yesenia Pacheco-Hernández, Elvia Becerra-Martínez, José Alejo Zarate-Reyes, Ramiro Cruz-Duran
This study reports on the volatile profile and pharmacological activities of the essential oil and resin from Bursera slechtendalii, an aromatic medicinal tree commercialized in southern Mexico. The essential oil contained 25 volatiles including p-cymen-8-ol (25.4-35.7%), n-hexyl hexanoate (6.8-17.6%) and n-octyl hexanoate (7.6-14.8%), whereas the crystallized resin contained 14 volatiles, including n-octyl acetate (29.6-34.2%), limonene (15.8-18.7%) and n-octyl butyrate (12.6-17-6%). The inhalation of vapors from the resin and essential oil caused a significant anxiolytic-like effect (p < ...
May 16, 2018: Fitoterapia
https://www.readbyqxmd.com/read/29774442/integrated-models-of-care-for-individuals-with-opioid-use-disorder-how-do-we-prevent-hiv-and-hcv
#5
REVIEW
Katherine M Rich, Joshua Bia, Frederick L Altice, Judith Feinberg
PURPOSE OF REVIEW: To describe models of integrated and co-located care for opioid use disorder (OUD), hepatitis C (HCV), and HIV. RECENT FINDINGS: The design and scale-up of multidisciplinary care models that engage, retain, and treat individuals with HIV, HCV, and OUD are critical to preventing continued spread of HIV and HCV. We identified 17 models within primary care (N = 3), HIV specialty care (N = 5), opioid treatment programs (N = 6), transitional clinics (N = 2), and community-based harm reduction programs (N = 1), as well as two emerging models...
May 17, 2018: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/29769119/adefovir-dipivoxil-induced-hypophosphatemic-osteomalacia-in-chronic-hepatitis-b-a-comparative-study-of-chinese-and-foreign-case-series
#6
Nan Chen, Jian-Bo Zhang, Qiujie Zhang, Yun-Peng Zhao, Li-Yan Li, Li-Wei Liu, Fei Yu, Xin Yu, Tao Peng, Kuan-Xiao Tang
BACKGROUND: Adefovir dipivoxil (ADV)-induced renal tubular dysfunction and hypophosphatemic osteomalacia (HO) have been given great consideration in the past few years. However, no standard guidance is available due to a lack of powerful evidence from appropriate long-term prospective case-control studies and variations in the definition of renal adverse events. The aim of this study is to clarify clinical features of ADV-related HO in Chinese chronic hepatitis B patients with long-term ADV treatment in Chinese and non-Chinese comparative case series...
May 16, 2018: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29765698/the-epidemiology-of-hepatitis-c-virus-in-pakistan-systematic-review-and-meta-analyses
#7
Zaina Al Kanaani, Sarwat Mahmud, Silva P Kouyoumjian, Laith J Abu-Raddad
To characterize hepatitis C virus (HCV) epidemiology in Pakistan and estimate the pooled mean HCV antibody prevalence in different risk populations, we systematically reviewed all available records of HCV incidence and/or prevalence from 1989 to 2016, as informed by the Cochrane Collaboration Handbook. This systematic review was reported following the PRISMA guidelines. Populations were classified into six categories based on the risk of exposure to HCV infection. Meta-analyses were performed using DerSimonian and Laird random-effects models with inverse variance weighting...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29763447/hepatitis-b-and-c-seroprevalence-knowledge-practice-and-associated-factors-among-medicine-and-health-science-students-in-northeast-ethiopia
#8
Wondmagegn Demsiss, Abdurahaman Seid, Temesgen Fiseha
BACKGROUND: Health care professionals, especially medical students, are at greater risk of contracting hepatitis B and C virus infections due to their occupational exposure to percutaneous injuries and other body fluids. The aim of this study was to determine the seroprevalence of hepatitis B and C virus infections among medicine and health science students in Northeast Ethiopia and to assess their knowledge and practice towards the occupational risk of viral hepatitis. METHODS: A cross-sectional study was conducted among a total of 408 medicine and health science students during the period from March to September 2017...
2018: PloS One
https://www.readbyqxmd.com/read/29757718/us-of-right-upper-quadrant-pain-in-the-emergency-department-diagnosing-beyond-gallbladder-and-biliary-disease
#9
Gayatri Joshi, Kevin A Crawford, Tarek N Hanna, Keith D Herr, Nirvikar Dahiya, Christine O Menias
Acute cholecystitis is the most common diagnosable cause for right upper quadrant abdominal (RUQ) pain in patients who present to the emergency department (ED). However, over one-third of patients initially thought to have acute cholecystitis actually have RUQ pain attributable to other causes. Ultrasonography (US) is the primary imaging modality of choice for initial imaging assessment and serves as a fast, cost-effective, and dynamic modality to provide a definitive diagnosis or a considerably narrowed list of differential possibilities...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29755477/glycan-shielding-and-modulation-of-hepatitis-c-virus-neutralizing-antibodies
#10
REVIEW
Muriel Lavie, Xavier Hanoulle, Jean Dubuisson
Hepatitis C virus (HCV) envelope glycoprotein heterodimer, E1E2, plays an essential role in virus entry and assembly. Furthermore, due to their exposure at the surface of the virion, these proteins are the major targets of anti-HCV neutralizing antibodies. Their ectodomain are heavily glycosylated with up to 5 sites on E1 and up to 11 sites on E2 modified by N-linked glycans. Thus, one-third of the molecular mass of E1E2 heterodimer corresponds to glycans. Despite the high sequence variability of E1 and E2, N-glycosylation sites of these proteins are generally conserved among the seven major HCV genotypes...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29752759/metformin-targets-brown-adipose-tissue-in-vivo-and-reduces-oxygen-consumption-in-vitro
#11
Peter Breining, Jonas B Jensen, Elias I Sundelin, Lars C Gormsen, Steen Jakobsen, Morten Busk, Lars Rolighed, Peter Bross, Paula Fernandez-Guerra, Lasse K Markussen, Nanna E Rasmussen, Jacob B Hansen, Steen B Pedersen, Bjørn Richelsen, Niels Jessen
Metformin is the most widely prescribed oral antidiabetic drug worldwide. Despite well-documented beneficial effects on health outcomes in diabetic patients, the target organs that mediate the effects of metformin remain to be established. In adult humans, brown adipose tissue (BAT) can influence basic metabolic rate, making BAT an attractive target for treatment of type 2 diabetes. Under the hypothesis that BAT is a metformin target tissue, we investigated in vivo uptake of [11 C]-metformin tracer in mice and studied in vitro effects of metformin on cultured human brown adipocytes...
May 12, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29751019/nighttime-light-exposure-enhances-rev-erb%C3%AE-targeting-micrornas-and-contributes-to-hepatic-steatosis
#12
Patricia C Borck, Thiago M Batista, Jean F Vettorazzi, Gabriela M Soares, Camila Lubaczeuski, Dongyin Guan, Antonio C Boschero, Elaine Vieira, Mitchell A Lazar, Everardo M Carneiro
OBJECTIVE: The exposure to artificial light at night (ALAN) disrupts the biological rhythms and has been associated with the development of metabolic syndrome. MicroRNAs (miRNAs) display a critical role in fine-tuning the circadian system and energy metabolism. In this study, we aimed to assess whether altered miRNAs expression in the liver underlies metabolic disorders caused by disrupted biological rhythms. RESULTS: We found that C3H/HePas mice exposed to ALAN developed obesity, and hepatic steatosis, which was paralleled by decreased expression of Rev-erbα and up-regulation of its lipogenic targets ACL and FAS in liver...
May 8, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29750017/pharmacokinetic-characteristics-of-telaprevir-in-healthy-korean-male-subjects-and-comparisons-with-japanese
#13
Yewon Choi, Seonghae Yoon, Kyoko Matsumoto, Yoshiyasu Ohta, SeungHwan Lee, Kyung-Sang Yu, In-Jin Jang
Introduction: Telaprevir, a reversible selective inhibitor of viral protease and a potential blocker of viral replication, is indicated for the treatment of hepatitis C virus genotype 1 infection. In this study, the pharmacokinetic profile, safety, and tolerability of telaprevir and the effect of food on telaprevir exposure were evaluated in healthy Korean subjects, and compared with data from a previous study in Japanese male subjects. Methods: The single ascending dose study was conducted in 3 dose-based groups (500, 750, and 1,250 mg, six subjects each) in a fasted state...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29746728/an-open-label-phase-1-study-to-assess-the-effects-of-hepatic-impairment-on-pomalidomide-pharmacokinetics
#14
Yan Li, Xiaomin Wang, Liangang Liu, Chengyue Zhang, Diana Gomez, Josephine Reyes, Maria Palmisano, Simon Zhou
Pomalidomide is an immunomodulatory drug and the dosage of 4 mg per day taken orally on days 1-21 of repeated 28-day cycles has been approved in the European Union and United States to treat patients with relapsed/refractory multiple myeloma. Because pomalidomide is extensively metabolized prior to excretion, a total of 32 subjects (8 healthy subjects in group 1; 8 subjects with severe hepatic impairment in group 2; 8 subjects with moderate hepatic impairment in group 3; and 8 subjects with mild hepatic impairment in group 4) were enrolled in a multicenter, open-label, single-dose study to assess the impact of hepatic impairment on pomalidomide exposure...
May 10, 2018: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/29743343/multiple-effects-of-cold-exposure-on-livers-of-male-mice
#15
Aldo Grefhorst, Johanna C van den Beukel, Wieneke Dijk, Jacobie Steenbergen, Gardi J Voortman, Selmar Leeuwenburgh, Theo J Visser, Sander Kersten, Edith Ch Friesema, Axel Pn Themmen, Jenny A Visser
Cold exposure of mice is a common method to stimulate brown adipose tissue (BAT) activity and induce browning of white adipose tissue (WAT) that has beneficial effects on whole body lipid metabolism, including reduced plasma triglyceride (TG) concentrations. The liver is a key regulatory organ in lipid metabolism as it can take up as well as oxidize fatty acids. The liver can also synthesize, store and secrete triglycerides (TGs) in very low density lipoprotein (VLDL) particles. The effects of cold exposure on murine hepatic lipid metabolism have not been addressed...
May 9, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29742524/prevalence-and-incidence-of-hepatitis-delta-in-patients-with-chronic-hepatitis-b-in-spain
#16
Antonio Aguilera, Rocio Trastoy, Javier Rodríguez-Calviño, Tamara Manso, Carmen de Mendoza, Vicente Soriano
BACKGROUND: Hepatitis delta virus (HDV) is a defective agent that only replicates in the presence of the hepatitis B virus. Accordingly, HDV acquisition may occur as superinfection of HBsAg+ carriers or following acute dual HDV and hepatitis B virus exposure. Herein, we examined the global and incident rates of HDV infections in Spain. PATIENTS AND METHODS: The presence of anti-HDV antibody and new HDV superinfections was examined in all HBsAg+ patients who attended one large tertiary outclinic in Spain since year 2000...
May 8, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29738783/do-safety-engineered-devices-reduce-needle-stick-injuries
#17
J Schuurmans, S P Lutgens, L Groen, P M Schneeberger
BACKGROUND: Needle stick injuries (NSIs) are one of the most common health hazards facing health care workers (HCWs) across the globe. Needles with safety engineered devices (SEDs) have been developed to minimize the risk of exposure to blood-borne infections such as Hepatitis B virus (HBV), Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) associated with NSIs. AIM: To assess the effect of the introduction of SEDs in preventing NSIs among HCWs in the Jeroen Bosch Hospital (JBH), the Netherlands...
May 5, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29735803/the-observed-effect-of-gastric-bypass-surgery-on-direct-acting-antiviral-treatment-a-case-report
#18
Elise J Smolders, Sophie B Willemse, Omar El-Sherif, Saye Khoo, David M Burger
Chronic hepatitis C virus (HCV) infection can be cured with treatment using direct-acting antivirals (DAAs). Although these drugs have been widely studied, information about certain special populations is missing. In this case report we describe a treatment-experienced patient with chronic HCV infection genotype 1b, treated with 150 mg/day simeprevir, 400 mg/day sofosbuvir, and 1,000 mg/ day ribavirin for 24 weeks, after a Roux-and-Y gastric bypass. At steady-state a pharmacokinetic curve was recorded of sofosbuvir, GS-331007, and simeprevir...
April 9, 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29735323/sub-optimal-protection-against-past-hepatitis-b-virus-infection-where-subtype-mismatch-exists-between-vaccine-and-circulating-viral-genotype-in-northern-australia
#19
Benjamin C Cheah, Jane Davies, Gurmeet R Singh, Nicholas Wood, Kathy Jackson, Margaret Littlejohn, Belinda Davison, Peter McIntyre, Stephen Locarnini, Joshua S Davis, Steven Y C Tong
BACKGROUND: In Australia's Northern Territory, the hepatitis B virus (HBV) subgenotype A2 (subtype adw2) vaccine was introduced in 1988 for Indigenous infants. Subsequently, the circulating viral genotype has been identified as subgenotype C4 (subtype ayw3). We assessed HBV vaccine effectiveness (VE) in light of this subtype mismatch. METHODS: Participants of the Aboriginal Birth Cohort (ABC) study were recruited at birth (1987-1990), with HBV serology obtained at follow-up waves 3 (2005-2007) and 4 (2013-2015)...
May 4, 2018: Vaccine
https://www.readbyqxmd.com/read/29731847/blue-light-induced-apoptosis-of-human-promyelocytic-leukemia-cells-via-the-mitochondrial-mediated-signaling-pathway
#20
Jianjian Zhuang, Yange Liu, Qingxia Yuan, Junsong Liu, Yan Liu, Hongdong Li, Di Wang
Acute promyelocytic leukemia is frequently associated with dizziness, fever, nausea, hematochezia and anemia. Blue light, or light with wavelengths of 400-480 nm, transmits high levels of energy. The aim of the present study was to determine the pro-apoptotic effects of blue light (wavelength, 456 nm; radiation power, 0.25 mW/cm2 ) and the underlying mechanisms in a human promyelocytic leukemia cell line (HL60). Blue light reduced the viability and enhanced the mortality of HL60 cells in a time-dependent manner...
May 2018: Oncology Letters
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