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https://www.readbyqxmd.com/read/29156567/the-role-of-infected-cell-proliferation-in-the-clearance-of-acute-hbv-infection-in-humans
#1
Ashish Goyal, Ruy M Ribeiro, Alan S Perelson
Around 90-95% of hepatitis B virus (HBV) infected adults do not progress to the chronic phase and, instead, recover naturally. The strengths of the cytolytic and non-cytolytic immune responses are key players that decide the fate of acute HBV infection. In addition, it has been hypothesized that proliferation of infected cells resulting in uninfected progeny and/or cytokine-mediated degradation of covalently closed circular DNA (cccDNA) leading to the cure of infected cells are two major mechanisms assisting the adaptive immune response in the clearance of acute HBV infection in humans...
November 18, 2017: Viruses
https://www.readbyqxmd.com/read/29156047/immunopathogenesis-of-hepatitis-b-virus
#2
Tai-Chung Tseng, Li-Rung Huang
Chronic hepatitis B virus (HBV) infection is a global public health issue. There are >250 million people chronically infected with HBV, and these chronic carriers are at high risk of developing end-stage liver diseases and hepatocellular carcinoma. Patients with chronic hepatitis B (CHB) usually acquire the virus perinatally, while most patients infected during adulthood develop acute hepatitis B (AHB), which usually results in viral clearance. HBV infection is noncytopathic, and liver injury is mostly contributed by host immune responses...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29149046/impact-of-a-single-oral-acute-dose-of-aflatoxin-b%C3%A2-on-liver-function-cytokines-and-the-lymphoproliferative-response-in-c57bl-6-mice
#3
Angélica Tieme Ishikawa, Elisa Yoko Hirooka, Paula Leonello Alvares E Silva, Ana Paula Frederico Rodrigues Loureiro Bracarense, Karina Keller Marques da Costa Flaiban, Claudia Yuri Akagi, Osamu Kawamura, Marcio Carvalho da Costa, Eiko Nakagawa Itano
Aflatoxin B₁ (AFB₁), a mycotoxin found in food and feed, exerts harmful effects on humans and animals. The liver is the earliest target of AFB₁, and its effects have been evaluated in animal models exposed to acute or chronic doses. Considering the possibility of sporadic ingestion of AFB₁-contaminated food, this study investigated the impact of a single oral dose of AFB₁ on liver function/cytokines and the lymphoproliferative response in mice. C57BL/6 mice were treated with a single oral AFB₁ dose (44, 442 or 663 μg AFB₁/kg of body weight) on the first day...
November 17, 2017: Toxins
https://www.readbyqxmd.com/read/29146439/risk-stratification-after-paracetamol-overdose-using-mechanistic-biomarkers-results-from-two-prospective-cohort-studies
#4
James W Dear, Joanna I Clarke, Ben Francis, Lowri Allen, Jonathan Wraight, Jasmine Shen, Paul I Dargan, David Wood, Jamie Cooper, Simon H L Thomas, Andrea L Jorgensen, Munir Pirmohamed, B Kevin Park, Daniel J Antoine
BACKGROUND: Paracetamol overdose is common but patient stratification is suboptimal. We investigated the usefulness of new biomarkers that have either enhanced liver specificity (microRNA-122 [miR-122]) or provide mechanistic insights (keratin-18 [K18], high mobility group box-1 [HMGB1], and glutamate dehydrogenase [GLDH]). The use of these biomarkers could help stratify patients for their risk of liver injury at hospital presentation. METHODS: Using data from two prospective cohort studies, we assessed the potential for biomarkers to stratify patients who overdose with paracetamol...
November 13, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29145204/comparing-the-clinical-features-and-outcomes-of-acute-hepatitis-e-viral-infections-with-those-of-acute-hepatitis-a-b-and-c-infections-in-korea
#5
Hye Won Oh, Ra Ri Cha, Sang Soo Lee, Chang Min Lee, Wan Soo Kim, Yun Won Jo, Jin Joo Kim, Jae Min Lee, Hong Jun Kim, Chang Yoon Ha, Hyun Jin Kim, Tae Hyo Kim, Woon Tae Jung, Ok Jae Lee
OBJECTIVES: This study investigated the etiology of acute viral hepatitis and compared the clinical features of hepatitis E virus (HEV) infections with those of other acute viral hepatitis infections in Korea. METHODS: This study included 2,357 consecutive patients who were diagnosed with acute hepatitis, based on acute illness with jaundice or elevated alanine aminotransferase levels (>100 IU/L), between January 2007 and January 2016. Acute viral infections were observed in 23 (19...
November 17, 2017: Intervirology
https://www.readbyqxmd.com/read/29142477/modified-model-for-end-stage-liver-disease-improves-short-term-prognosis-of-hepatitis-b-virus-related-acute-on-chronic-liver-failure
#6
Wei Chen, Jia You, Jing Chen, Qi Zheng, Jia-Ji Jiang, Yue-Yong Zhu
AIM: To investigate whether the short-term prognosis of hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF) could be improved by using a modified model for end-stage liver disease (MELD) including serum lactate. METHODS: This clinical study was conducted at the First Affiliated Hospital, Fujian Medicine University, China. From 2009 to 2015, 236 patients diagnosed with HBV-related ACLF at our center were recruited for this 3-month follow-up study...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29135988/evolution-of-acute-hepatitis-c-virus-infection-in-a-large-european-city-trends-and-new-patterns
#7
César Garriga, Sandra Manzanares-Laya, Patricia García de Olalla, Pilar Gorrindo, Sabela Lens, Ricard Solà, María Martínez-Rebollar, Montserrat Laguno, Jordi Navarro, Xavier Torras, Mercè Gurguí, María-Jesús Barberá, Josep Quer, Eva Masdeu, Pere Simón, Miriam Ros, Anna de Andrés, Joan A Caylà
The aims of this study were to describe the evolution of acute hepatitis C virus (HCV) infections since 2004 and to determine its associated factors. Acute HCV infections diagnosed in Barcelona from 2004 to 2015 were included. Incidence ratios (IR) were then estimated for sex and age groups. Cases were grouped between 2004-2005, 2006-2011 and 2012-2015, and their incidence rate ratios (IRR) were calculated. In addition, risk factors for acute HCV infection were identified using multinomial logistic regression for complete, available and multiple imputed data...
2017: PloS One
https://www.readbyqxmd.com/read/29133292/intracellular-hepatitis-b-virus-increases-hepatic-cholesterol-deposition-in-alcoholic-fatty-liver-via-hepatitis-b-core-protein
#8
Ya-Qi Wang, Ting Wu, Dan-Qing Hu, Xin-Xin Weng, Xiao-Jing Wang, Pei-Jer Chen, Xiao-Ping Luo, Hong-Wu Wang, Qin Ning
Hepatits B virus (HBV) infection is a prevalent infectious disease with serious outcomes like chronic and acute hepatitis, cirrhosis and hepatocellular carcinoma. However, the metabolic alteration by HBV is rarely taken into concerns. With the high prevalence of alcohol consumption and chronic HBV infection, their overlap is assumed as an increasing latent hazard although without exact calculation, moreover, the impact of chronic alcoholic consumption combined with HBV on cholesterol metabolism is unknown. Six-week-old male FVB/Ncrl mice were hydrodynamically injected with a pGEM-4Z-1...
November 13, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29132524/hepatitis-a-and-b-infections
#9
REVIEW
Jennifer Thuener
Hepatitis A virus causes acute viral hepatitis, presenting with jaundice, nausea, and vomiting. Symptoms are self-limited and treated symptomatically. Routine vaccination of infants has greatly reduced the incidence in the United States. Vaccination is recommended for all infants and adults at increased risk. Hepatitis B virus can cause acute and chronic viral hepatitis. Acute hepatitis B is usually self-limited, but can develop into a chronic infection. Patients are at highest risk for developing chronic disease if they are infected at a younger age...
December 2017: Primary Care
https://www.readbyqxmd.com/read/29132413/germacranolide-type-sesquiterpene-lactones-from-smallanthus-sonchifolius-with-promising-activity-against-leishmania-mexicana-and-trypanosoma-cruzi
#10
Jerónimo L Ulloa, Renata Spina, Agustina Casasco, Patricia B Petray, Virginia Martino, Miguel A Sosa, Fernanda M Frank, Liliana V Muschietti
BACKGROUND: Leishmaniasis and Chagas disease are life-threatening illnesses caused by the protozoan parasites Leishmania spp. and Trypanosoma cruzi, respectively. They are known as "neglected diseases" due to the lack of effective drug treatments and the scarcity of research work devoted to them. Therefore, the development of novel and effective drugs is an important and urgent need. Natural products are an important source of bioactive molecules for the development of new drugs. In this study, we evaluated the activity of enhydrin, uvedalin and polymatin B, three sesquiterpene lactones (STLs) isolated from Smallanthus sonchifolius, on Leishmania mexicana (MNYC/BZ/62/M) and Trypanosoma cruzi (Dm28c)...
November 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29128891/prmt1-promotes-hyperglycemia-in-a-foxo1-dependent-manner-affecting-glucose-metabolism-during-hypobaric-hypoxia-exposure-in-rat-model
#11
Susovon Bayen, Supriya Saini, Priya Gaur, Arul Joseph Duraisamy, Alpesh Kumar Sharma, Karan Pal, Praveen Vats, Shashi Bala Singh
PURPOSE: High-altitude (HA) environment causes changes in cellular metabolism among unacclimatized humans. Previous studies have revealed that insulin-dependent activation of protein kinase B (Akt) regulates metabolic processes via discrete transcriptional effectors. Moreover, protein arginine methyltransferase (PRMT)1-dependent arginine modification of forkhead box other (FoxO)1 protein interferes with Akt-dependent phosphorylation. The present study was undertaken to test the involvement of PRMT1 on FoxO1 activation during hypobaric hypoxia (HH) exposure in rat model...
November 11, 2017: Endocrine
https://www.readbyqxmd.com/read/29112564/a-surgical-clostridium-associated-risk-of-death-score-predicts-mortality-after-colectomy-for-clostridium-difficile
#12
Audrey S Kulaylat, Zain Kassam, Christopher S Hollenbeak, David B Stewart
BACKGROUND: A Clostridium difficile-associated risk of death score was recently developed and validated by using a national cohort of both nonsurgical and surgical patients admitted with C difficile infection. However, risk scores specifically derived from surgical cohorts and designed for patients with C difficile infection are currently unavailable. OBJECTIVE: The aim of this study was to develop a risk of death score for patients with C difficile infection who are being considered for total abdominal colectomy because of the failure of medical therapy...
December 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29108199/-value-of-neutrophil-lymphocyte-ratio-in-predicting-hepatitis-b-related-liver-failure
#13
Y Fan, X Li, X F Zhou, D Z Zhang, X F Shi
Objective: To investigate the value of neutrophil-lymphocyte ratio (NLR) in predicting hepatitis B-related liver failure. Methods: A total of 349 subjects were enrolled, among whom 60 were healthy persons who underwent physical examination (group A), 111 had severe chronic hepatitis B (group B), 92 had decompensated hepatitis B cirrhosis (group C), and 86 had acute-on-chronic liver failure (ACLF) (group D). Routine blood test results, liver function parameters, and coagulation parameters were collected, and NLR was calculated...
October 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29106317/is-hepatitis-b-vaccination-performed-at-infant-and-adolescent-age-able-to-provide-long-term-immunological-memory-an-observational-study-on-healthcare-students-and-workers-in-florence-italy
#14
Costanza Bini, Maddalena Grazzini, Martina Chellini, Nicola Mucci, Giulio Arcangeli, Emilia Tiscione, Paolo Bonanni
Universal vaccination programmes against Hepatitis B Virus (HBV) have significantly reduced the burden of the disease; nevertheless, HBV infection remains a relevant issue for high-risk subjects, such as healthcare workers (HCWs), who may potentially be exposed to blood or body fluids. Our study evaluates the long-term duration of the immunological memory of HBV vaccination 11-23 years after primary immunization by examining the response to booster doses in HCWs and students of health disciplines at Careggi Teaching Hospital in Florence (Italy)...
November 6, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29098564/hepatitis-b-virus-virology-molecular-biology-life-cycle-and-intrahepatic-spread
#15
REVIEW
P Karayiannis
Hepatitis B virus is a member of the Hepadnaviridae family and responsible for causing acute and chronic hepatitis in humans. The current estimates of people chronically infected with the virus are put at 250 million worldwide. Immune-mediated liver damage in these individuals may lead to the development of cirrhosis and hepatocellular carcinoma later in life. This review deals with our current understanding of the virology, molecular biology, life cycle and cell-to-cell spread of this very important pathogen, all of which are considered essential for current and future approaches to antiviral treatment...
November 2, 2017: Hepatology International
https://www.readbyqxmd.com/read/29096656/liver-resection-for-hepatocellular-carcinoma-in-patients-with-hematological-malignancies
#16
Hui-Chen Lin, Yang-Shen Yang, Chieh-Lin Jerry Teng, Ching-Hui Shen, Yee-Gee Jan, Shao-Bin Cheng, Cheng-Chung Wu, Yi-Ling Lin, Chu-Chun Huang, Fang-Ku P'eng
BACKGROUND: Improvements in antimetabolite drugs have prolonged the survival of patient with hematological malignancies. However, these drugs may have hepatotoxic side effects and may induce acute liver failure, chronic liver fibrosis, cirrhosis, or even hepatocellular carcinoma (HCC). Although liver resection remains a curative option for HCC, its role in HCC with hematological malignancies has never been fully explored. METHODS: A retrospective review of 1725 patients who underwent curative liver resection for newly diagnosed HCC between 1994 and 2016 was conducted...
November 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29095312/hepatitis-b-virus-infection-in-an-hbsab-positive-lymphoma-patient-who-received-chemotherapy-a-case-report
#17
Fu-Biao Kang, Ling Wang, Dian-Xing Sun
RATIONALE: Tumor chemotherapy could weaken the immune system of patients, which might enhance the body sensitivities to the exogenous pathogens, among which the hepatitis B virus (HBV) infection should be concerned because of the higher chances of infection and the severe outcomes, especially in East Asia. The titer level of hepatitis B surface antibody (HBsAb) higher than 10 IU/L is considered to offer immunocompetent individuals adequate protection. However, whether this level is enough to the tumor patients during chemotherapy remains unclear...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29090997/safety-and-efficacy-outcomes-of-embolization-in-hepatic-sarcomas
#18
David B Pierce, Guy E Johnson, Eric Monroe, Elizabeth T Loggers, Robin L Jones, Seth M Pollack, Siddharth A Padia
OBJECTIVE: The outcome for patients with unresectable hepatic sarcoma is poor with a median survival period of 12-16 months. The purpose of this study was to evaluate liver-directed transcatheter therapies for the treatment of hepatic sarcomas. MATERIALS AND METHODS: In a retrospective study, the cases of patients with primary and metastatic hepatic sarcoma treated by transcatheter embolization, chemoembolization, and (90)Y radioembolization between 2004 and 2015 were identified...
November 1, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29089265/tenofovir-entecavir-and-lamivudine-in-patients-with-severe-acute-exacerbation-and-hepatic-decompensation-of-chronic-hepatitis-b
#19
Jung Gil Park, Yu Rim Lee, Soo Young Park, Heon Ju Lee, Won Young Tak, Young Oh Kweon, Se Young Jang, Jae Min Chun, Young Seok Han, Keun Hur, Hye Won Lee, Min Kyu Kang
OBJECTIVE: To compare the efficacy of and mortality after lamivudine (LAM), tenofovir (TDF), and entecavir (ETV) treatment in patients with severe acute chronic hepatitis B (CHB) exacerbation. METHODS: We analyzed 91 patients with severe acute CHB exacerbation treated with LAM (n=28), TDF (n=26), or ETV (n=37) for 10 years. The primary endpoint was overall mortality or liver transplantation (LT) by 48 weeks. The determined predictors of mortality, virologic and biochemical responses, and drug resistance were also evaluated...
October 28, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29089045/a-young-female-presenting-with-unilateral-sacroiliitis-following-dengue-virus-infection-a-case-report
#20
W D Jayamali, H M M T B Herath, Aruna Kulatunga
BACKGROUND: Dengue is a common arthropod-borne viral infection in Sri Lanka which is spread by the mosquitos of the genus Aedes. The clinical features of dengue include high-grade fever associated with arthralgia and myalgia. However, dengue virus is not considered an arthritogenic virus. We report a case of a previously healthy young female who presented with imaging-confirmed right-sided sacroiliitis 10 days after developing dengue fever. This is the first reported case that shows a possible link between dengue infection and development of arthritis...
November 1, 2017: Journal of Medical Case Reports
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