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hepatitis c exposure

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https://www.readbyqxmd.com/read/28442271/evaluation-of-the-xpert-hcv-viral-load-point-of-care-assay-from-venepuncture-collected-and-finger-stick-capillary-whole-blood-samples-a-cohort-study
#1
Jason Grebely, Francois M J Lamoury, Behzad Hajarizadeh, Yasmin Mowat, Alison D Marshall, Sahar Bajis, Philippa Marks, Janaki Amin, Julie Smith, Michael Edwards, Carla Gorton, Nadine Ezard, David Persing, Marika Kleman, Philip Cunningham, Beth Catlett, Gregory J Dore, Tanya L Applegate
BACKGROUND: Point-of-care hepatitis C virus (HCV) RNA testing offers an advantage over antibody testing (which only indicates previous exposure), enabling diagnosis of active infection in a single visit. In this study, we evaluated the performance of the Xpert HCV Viral Load assay with venepuncture and finger-stick capillary whole-blood samples. METHODS: Plasma and finger-stick capillary whole-blood samples were collected from participants in an observational cohort enrolled at five sites in Australia (three drug and alcohol clinics, one homelessness service, and one needle and syringe programme)...
April 21, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28441176/long-term-nitrite-inhalant-exposure-and-cancer-risk-in-msm
#2
Anupriya Dutta, Hajime Uno, Alex Holman, David R Lorenz, Steven M Wolinsky, Dana Gabuzda
OBJECTIVES: Nitrite inhalants (poppers) are commonly used recreational drugs among MSM and were previously associated with elevated rates of high-risk sexual behavior, HIV and human herpesvirus type 8 (HHV-8) seroconversion, and transient immunosuppressive effects in experimental models. Whether long-term popper use is associated with cancer risk among MSM in the HAART era is unclear. DESIGN: Prospective cohort study of cancer risk in 3223 HIV-infected and uninfected MSM in the Multicenter AIDS Cohort Study from 1996-2010...
May 15, 2017: AIDS
https://www.readbyqxmd.com/read/28439184/systemic-inflammation-and-viral-exposure-among-young-mexican-american-women-nativity-related-differences
#3
Natalya Rosenberg, Martha L Daviglus, Holli A DeVon, Chang Gi Park, Kamal Eldeirawi
BACKGROUND: Factors contributing to elevated inflammation in racial/ethnic minority populations are not well understood. We examined the association of viral exposure with C-reactive protein (CRP) in young Mexican American women. METHODS AND RESULTS: Participants (N=1,141) were currently non-pregnant women of Mexican background, aged 18-39 years, from the cross-sectional National Health and Nutrition Examination Survey (NHANES) 1999-2010. Viral exposure was defined as seropositive status for hepatitis B, and herpes simplex types 1 and 2, and classified as seronegative, seropositive for any one agent, and seropositive for 2 or 3 agents...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28434128/aspects-on-the-history-of-transmission-and-favor-of-distribution-of-viruses-by-iatrogenic-action-perhaps-an-example-of-a-paradigm-of-the-worldwide-spread-of-hiv
#4
REVIEW
Lutz G Gürtler, Josef Eberle
Transmission of infectious agents might be associated with iatrogenic actions of charitable help in health care. An example is the vaccination against yellow fever in USA that transmitted hepatitis B virus. Another example is injections of praziquantel for treatment and cure of schistosomiasis in Central and Northern Africa, with a focus in Egypt that has spread hepatitis C virus. There is no indication that human T-lymphotropic virus type 1 was spread by injection treatment for African trypanosomiasis, syphilis and treponematosis, but these treatments might have contributed to the early spread of human immunodeficiency virus type 1 (HIV-1) in Central Africa...
April 22, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28429187/curcumin-reverses-the-depressive-like-behavior-and-insulin-resistance-induced-by-chronic-mild-stress
#5
Ji-Duo Shen, Yu Wei, Yu-Jie Li, Jing-Yi Qiao, Yu-Cheng Li
Increasing evidence has demonstrated that patients with depression have a higher risk of developing type 2 diabetes. Insulin resistance has been identified as the key mechanism linking depression and diabetes. The present study established a rat model of depression complicated by insulin resistance using a 12-week exposure to chronic mild stress (CMS) and investigated the therapeutic effects of curcumin. Sucrose intake tests were used to evaluate depressive-like behaviors, and oral glucose tolerance tests (OGTT) and intraperitoneal insulin tolerance tests (IPITT) were performed to evaluate insulin sensitivity...
April 21, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28428958/debromoaplysiatoxin-as-the-causative-agent-of-dermatitis-in-a-dog-after-exposure-to-freshwater-in-california
#6
Birgit Puschner, Adrienne C Bautista, Chris Wong
Contamination of recreational waters with cyanobacterial toxins continues to increase and presents a risk to animals and humans. Although cases of acute hepato- and neurotoxicoses in dogs following cyanotoxin exposure exist, no reports of skin-related reactions in dogs exist. A 5-year-old female spayed 34 kg Bracco Italiano was initially presented for rapid onset of severe pruritus and urticaria. Marked excoriation and erythema were noted over the chest and neck, while urticaria was noted in the inguinal regions and ventral abdomen...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28426879/acute-exposure-to-dehp-metabolite-mehp-cause-genotoxicity-mutagenesis-and-carcinogenicity-in-mammalian-chinese-hamster-ovary-cells
#7
Yu-Jung Chang, Chia-Yi Tseng, Pei-Ying Lin, Yu-Chen Chuang, Ming-Wei Chao
Di-(2-ethylhexyl) phthalate (DEHP), the common plasticizer used in the production of polyvinyl chloride, can be converted to the more potent metabolite mono-ethylhexyl phthalate (MEHP). Epidemiological studies have shown an association with elevated induction of rat hepatic cancer and reproductive toxicity in response to MEHP exposure. However, the mechanism of genotoxicity and carcinogenicity induced by MEHP treatment remains unclear. As a means to elucidate the mechanisms of action, lethality and mutagenicity in the adenine phosphoribosyltransferase (aprt+/-) gene induced in several CHO cell types by MEHP were assessed...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28423231/direct-acting-antiviral-therapy-decreases-hepatocellular-carcinoma-recurrence-rate-in-cirrhotic-patients-with-chronic-hepatitis-c
#8
Victor Virlogeux, Pierre Pradat, Kerstin Hartig-Lavie, François Bailly, Marianne Maynard, Guillaume Ouziel, Domitille Poinsot, Fanny Lebossé, Marie Ecochard, Sylvie Radenne, Samir Benmakhlouf, Joseph Koffi, Philippe Lack, Caroline Scholtes, Anne-Claire Uhres, Christian Ducerf, Jean-Yves Mabrut, Agnès Rode, Massimo Levrero, Christophe Combet, Philippe Merle, Fabien Zoulim
BACKGROUND AND AIMS: Arrival of direct-acting antiviral (DAA) agents against hepatitis C virus (HCV) with high-sustained virological response (SVR) rates and very few side effects has drastically changed the management of HCV infection. The impact of DAA exposure on hepatocellular carcinoma (HCC) recurrence after a first remission in patients with advanced fibrosis remains to be clarified. METHODS: 68 consecutive HCV patients with a first HCC diagnosis and under remission, subsequently treated or not with a DAA combination, were included...
April 19, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28421526/impact-of-the-toxicity-of-cylindrospermopsis-raciborskii-woloszynska-seenayya-subba-raju-on-laboratory-rats-in-vivo
#9
Nevena B Đorđević, Sanja Lj Matić, Snežana B Simić, Snežana M Stanić, Vladimir B Mihailović, Nevena M Stanković, Vesna D Stanković, Andrija R Ćirić
In vivo laboratory studies of toxicity were performed on Wistar rats using a methanol extract produced by the natural population of Cylindrospermopsis raciborskii (abundance of 2.13 × 10(5) trichomes mL(-1)) collected at Aleksandrovac Lake (Serbia). HPLC analysis showed that the extract contains 6.65 μg cylindrospermopsin (CYN) mg(-1). The rats were killed 24 or 72 h after a single intraperitoneal injection of C. raciborskii extract in concentrations of 1500, 3000, 6000 and 12,000 μg kg(-1) body weight (bw) and an equivalent amount of CYN as present in the highest dose of the extract (79...
April 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28417561/population-pharmacokinetics-of-morphine-in-patients-with-nonalcoholic-steatohepatitis-nash-and-healthy-adults
#10
V Pierre, C K Johnston, B C Ferslew, Klr Brouwer, D Gonzalez
Altered expression and function of transporters in nonalcoholic steatohepatitis (NASH) patients may affect the pharmacokinetics (PK), efficacy, and safety of substrate drugs. A population pharmacokinetic (PopPK) analysis was performed to assess differences in morphine and morphine-3-glucuronide (M3G) disposition in NASH and healthy subjects. A total of 315 serum and 42 urine samples from 21 subjects (14 healthy; 7 NASH) were analyzed using NONMEM. Morphine and M3G PK were described by three- and one-compartment models, respectively...
April 18, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28413684/physiological-effects-of-environmentally-relevant-multi-day-thermal-stress-on-wild-juvenile-atlantic-salmon-salmo-salar
#11
Emily Corey, Tommi Linnansaari, Richard A Cunjak, Suzanne Currie
The frequency of extreme thermal events in temperate freshwater systems is expected to increase alongside global surface temperature. The Miramichi River, located in eastern Canada, is a prominent Atlantic salmon (Salmo salar) river where water temperatures can exceed the proposed upper thermal limit for the species (~27°C). Current legislation closes the river to recreational angling when water temperatures exceed 20°C for two consecutive nights. We aimed to examine how natural thermal variation, representative of extreme high thermal events, affected the thermal tolerance and physiology of wild, juvenile Atlantic salmon...
2017: Conservation Physiology
https://www.readbyqxmd.com/read/28412292/hla-bw4-80-t-and-multiple-hla-bw4-copies-combined-with-kir3dl1-associate-with-spontaneous-clearance-of-hcv-infection-in-people-who-inject-drugs
#12
Christine Thöns, Tina Senff, Theresa J Hydes, Angela R Manser, Falko M Heinemann, Andreas Heinold, Martin Heilmann, Arthur Y Kim, Markus Uhrberg, Norbert Scherbaum, Georg M Lauer, Salim I Khakoo, Jörg Timm
BACKGROUND AND AIMS: NK cell function is regulated by inhibitory and activating receptors including killer-cell immunoglobulin-like receptors (KIRs). Here, we analyzed the impact of different KIR/KIR-ligand genotypes on the outcome of HCV infection in people who inject drugs (PWID). KIR/KIR-ligand genotypes associated with spontaneous clearance of HCV infection were identified in a cohort of PWID from Germany (n=266) and further validated in a second anti-HCV positive cohort of PWID recruited in North America (n=342)...
April 12, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28408375/uric-acid-is-associated-with-inflammatory-biomarkers-and-induces-inflammation-via-activating-the-nf-%C3%AE%C2%BAb-signaling-pathway-in-hepg2-cells
#13
Rosangela Spiga, Maria Adelaide Marini, Elettra Mancuso, Concetta Di Fatta, Anastasia Fuoco, Francesco Perticone, Francesco Andreozzi, Gaia Chiara Mannino, Giorgio Sesti
OBJECTIVE: Serum uric acid (UA) has been associated with increased risk of cardiovascular and metabolic diseases. However, the causal mechanisms linking elevated UA levels to cardio-metabolic diseases are still unsettled. One potential explanation for how UA might contribute to cardio-metabolic disease might be its ability to induce systemic inflammation. APPROACH AND RESULTS: Herein, we report a positive relationship between serum UA and acute-phase reactants, such as high-sensitivity C-reactive protein, fibrinogen, ferritin, complement C3, and erythrocyte sedimentation rate, in a cohort of 2731 nondiabetic adults...
April 13, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28390242/cyp1a-protein-expression-and-catalytic-activity-in-double-crested-cormorants-experimentally-exposed-to-deepwater-horizon-mississippi-canyon-252-oil
#14
Courtney R Alexander, Michael J Hooper, Dave Cacela, Kim D Smelker, Caleshia S Calvin, Karen M Dean, Steve J Bursian, Fred L Cunningham, Katie C Hanson-Dorr, Katherine E Horak, John P Isanhart, Jane Link, Susan A Shriner, Céline A J Godard-Codding
Double-crested cormorants (Phalacrocorax auritus, DCCO) were orally exposed to Deepwater Horizon Mississippi Canyon 252 (DWH) oil to investigate oil-induced toxicological impacts. Livers were collected for multiple analyses including cytochrome P4501A (CYP1A) enzymatic activity and protein expression. CYP1A enzymatic activity was measured by alkoxyresorufin O-dealkylase (AROD) assays. Activities specific to the O-dealkylation of four resorufin ethers are reported: benzyloxyresorufin O-debenzylase (BROD), ethoxyresorufin O-deethylase (EROD), methoxyresorufin O-demethylase (MROD), and pentoxyresorufin O-depentylase (PROD)...
April 5, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28389619/differential-expression-of-oatp1b3-mediates-unconjugated-testosterone-influx
#15
Tristan M Sissung, Ariel M Ley, Jonathan D Strope, Edel M McCrea, Shaunna L Beedie, Cody J Peer, Suneet Shukla, Jennifer C van Velkinburgh, Kelie Reece, Sarah Troutman, Tessa Campbell, Elena Fernandez, Phoebe Huang, Jordan Smith, Nilay Thakkar, David Venzon, Steffan Brenner, Wooin Lee, Maria J Merino, Ji Luo, Walter Jager, Cindy H Chau, Douglas K Price, William D Figg
Castration resistant prostate cancer (CRPC) has greater intratumoral testosterone concentrations than similar tumors from eugonadal men; simple diffusion does not account for this observation. The present study was undertaken to ascertain the androgen uptake kinetics, functional, and clinical relevance of de novo expression of the steroid hormone transporter OATP1B3 (SLCO1B3). Experiments testing the cellular uptake of androgens suggest that testosterone is an excellent substrate of OATP1B3 (KM=23.2µM; VMAX=321...
April 7, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28387654/ending-aids-as-a-public-health-threat-by-2030-scientific-developments-from-the-2016-interest-conference-in-yaound%C3%A3-cameroon
#16
Catherine A Hankins, Sinata Koulla-Shiro, Peter Kilmarx, Guido Ferrari, Mauro Schechter, Coumba Touré Kane, François Venter, Charles Ab Boucher, Anna-Laura Ross, Debrework Zewdie, Serge Paul Eholié, Elly Katabira
The underpinning theme of the 2016 INTEREST Conference held in Yaoundé, Cameroon, 3-6 May 2016 was ending AIDS as a public health threat by 2030. Focused primarily on HIV treatment, pathogenesis and prevention research in resource-limited settings, the conference attracted 369 active delegates from 34 countries, of which 22 were in Africa. Presentations on treatment optimization, acquired drug resistance, care of children and adolescents, laboratory monitoring and diagnostics, implementation challenges, HIV prevention, key populations, vaccine and cure, hepatitis C, mHealth, financing the HIV response and emerging pathogens, were accompanied by oral, mini-oral and poster presentations...
April 7, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28383617/plasma-amino-acids-of-the-transsulfuration-pathway-and-plasma-lactate-in-septic-patients
#17
C Chiarla, I Giovannini, G Miggiano
OBJECTIVES: In sepsis increasing plasma lactate, even if unrelated to hypoperfusion and hypoxia, is a cause of concern. Among the patterns associated with increasing lactate, several plasma amino acid (AA) abnormalities, more in particular those of sulfur AAs, have remained unexplored, and their assessment has been the purpose of our study. MATERIALS AND METHODS: A systematic and detailed analysis of 183 simultaneous determinations of plasma AA-grams and lactate, from 12 trauma surgery patients who had developed sepsis, was performed...
March 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28381816/a-consensus-for-occupational-health-management-of-healthcare-workers-infected-with-human-immunodeficiency-virus-hepatitis-b-virus-and-or-hepatitis-c-virus
#18
Tomohiro Ishimaru, Koji Wada, Derek R Smith
Occupational health management plays an important role in the prevention of provider-to-patient transmission in healthcare workers infected with human immunodeficiency virus (HIV), hepatitis B virus (HBV), and/or hepatitis C virus (HCV). Therefore, the Japan Society for Occupational Health's Scientific Committee of Occupational Health for Health Care Workers has proposed a consensus for the management of healthcare workers infected with HIV, HBV, and/or HCV based on recent evidence for each concerned group...
April 5, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/28380657/genetic-polymorphisms-in-organic-cation-transporter-1-attenuates-hepatic-metformin-exposure-in-humans
#19
Elias Immanuel Ordell Sundelin, Lars Christian Gormsen, Jonas Brorson Jensen, Mikkel Holm Vendelbo, Steen Jakobsen, Ole Lajord Munk, Mette Marie Hougaard Christensen, Kim Brøsen, Jørgen Frøkiaer, Niels Jessen
Metformin has been used successfully to treat type 2 diabetes for decades. However, the efficacy of the drug varies considerably from patient to patient and this may in part be due to its pharmacokinetic properties. The aim of this study was to examine if common polymorphisms in SLC22A1, encoding the transporter protein OCT1, affect the hepatic distribution of metformin in humans. We performed non-invasive (11) C-metformin PET/CT to determine hepatic exposure in 12 subjects genotyped for variants in SLC22A1...
April 5, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28378135/exposure-safety-response-relationship-for-ombitasvir-paritaprevir-ritonavir-dasabuvir-and-ribavirin-in-patients-with-chronic-hepatitis-c-virus-genotype-1-infection-analysis-of-data-from-five-phase-ii-and-six-phase-iii-studies
#20
Chih-Wei Lin, Rajeev Menon, Wei Liu, Thomas Podsadecki, Nancy Shulman, Barbara DaSilva-Tillmann, Walid Awni, Sandeep Dutta
BACKGROUND AND OBJECTIVES: All-oral direct-acting antiviral regimens that include combinations of ombitasvir, paritaprevir, ritonavir, and dasabuvir with or without ribavirin were evaluated in hepatitis C virus-infected patients in phase II/III clinical studies. The objective of these analyses was to quantify the relationship between exposures of the components of the regimen and laboratory values and to determine covariates that could influence the relationship. METHODS: Exposure-safety response relationships between individual components of the direct-acting antiviral regimens and clinically important laboratory values were explored using data from 2998 patients from 11 phase II/III clinical studies...
April 4, 2017: Clinical Drug Investigation
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