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Journal of Medical Virology

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https://www.readbyqxmd.com/read/28513970/cytomegalovirus-infection-and-atherosclerosis-risk-a-meta-analysis
#1
Yang-Jie Jia, Jun Liu, Fei-Fei Han, Zi-Rui Wan, Li-Li Gong, He Liu, Wen Zhang, Thomas Wardell, Ya-Li Lv, Li-Hong Liu
BACKGROUND: Human cytomegalovirus (HCMV) infection is an important risk factor for atherosclerosis (AS). Numerous studies have been conducted to analyze the association between HCMV infection and risk of AS, but no clear consensus has been reached. So the objective of this paper was aimed to demonstrate the relationship between HCMV and AS by doing a meta-analysis. METHODS: Relative literature was searched through the electronic databases PubMed, Embase, and CNKI...
May 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28513915/impact-of-a-determinant-mutations-on-detection-of-hepatitis-b-surface-antigen-hbsag-in-hbv-strains-from-chinese-patients-with-occult-hepatitis-b
#2
Xiangyan Huang, Chenyun Ma, Qiang Zhang, Qingfen Shi, Tao Huang, Chao Liu, Jie Li, F Blaine Hollinger
This study was designed to detect mutations that occur within the "a" determinant in the S gene of the hepatitis B virus (HBV) in patients with occult hepatitis B (OHB), and to analyze the influence of these mutations on expression and reactivity of the hepatitis B surface antigen (HBsAg). Twenty-three certified OHB samples were compared to 32 HBsAg positive samples from patients with chronic hepatitis B. The median HBV DNA levels in the OHB group were significantly lower than those in the control group (p < 0...
May 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28504470/hemorrhagic-fever-with-renal-syndrome-caused-by-hantaan-virus-infection-in-4-pregnant-chinese-women
#3
Fanpu Ji, Wenxuan Zhao, Hailing Liu, Hongbo Zheng, Shengbang Wang, Caini He, Wenjun Wang, Ruijuan Zhang, Dan Bai, Changyin Tian, Wenxue Zhao, Hong Deng
Hantavirus infection during pregnancy can influence both maternal and fetal outcomes. Here, we describe four cases of hemorrhagic fever with renal syndrome (HFRS) in pregnant Chinese women. The HFRS put these women at increased risk for severe illness, despite the patients' symptomologies in the onset phase were similar to those observed in non-pregnant HFRS patients, such as fever, headache, nausea and thrombocytopenia. Pregnant women appeared to have a more severe status, presenting with severe complications, such as hypervolemia and pulmonary edema...
May 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28504416/characterization-and-circulation-of-seasonal-influenza-viruses-in-madrid-2010-2016
#4
Flavia Cecilia Chiarella, Zarife Daoud, Manuel Enrique Fuentes-Ferrer, José Tomás Ramos Amador, Juan José Picazo, Esther Culebras
Influenza virus infection is a major health care burden and is associated with significant morbidity and mortality. The 2009 influenza pandemic highlighted the importance of influenza surveillance. The objective of this study was to assess the epidemiology and activity of influenza A and B viruses in adults and children in the post-pandemic period with a special focus on the pediatric population. We performed a retrospective descriptive study involving adults and children with influenza-like illness at the Clinico San Carlos Hospital (Madrid, Spain) over 6 influenza seasons, between August 2010 and April 2016...
May 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28504357/a-nationwide-seroprevalence-screening-for-west-nile-virus-and-tick-borne-encephalitis-virus-in-the-population-of-bulgaria
#5
Iva Christova, Elitsa Panayotova, Simona Tchakarova, Evgenia Taseva, Iva Trifonova, Teodora Gladnishka
To assess local circulation and risk for human infections with West Nile virus (WNV) and Tick-borne encephalitis virus (TBEV) in Bulgaria, a nationwide seroprevalence study was conducted. In total, 1451 residents of all 28 districts in Bulgaria were tested for WNV-specific and TBEV-specific IgG antibodies. The survey found overall seroprevalence of 1.5% and 0.6%, respectively. The highest WNV seroprevalence was found in Sofia Province and districts near the river Danube. TBEV circulation was detected among residents of 6 districts...
May 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28500748/epidemiology-and-genetic-diversity-of-classic-human-astrovirus-among-hospitalized-children-with-acute-gastroenteritis-in-uruguay
#6
Lfl Tort, A Lizasoain, M Victoria, C Papalardo, S Castro, E Arreseigor, P Lopez, R Colina
Classic Human Astrovirus (Classic HAstV) are one of the most important causes of pediatric acute gastroenteritis (AGE), after rotaviruses and arguably caliciviruses. The aim of this study was to determine the molecular epidemiology of Classic HAstV from 175 clinical samples, being 153 stools and 22 vomits, collected from pediatric hospitalized patients with AGE in Salto city, Uruguay, from January 2011 to December 2012. Classic HAstV were detected and genotyped by using a qualitative Retro Transcription - Polimerase Chain Reaction (RT-PCR) directed to the Open Reading Frame-2 (ORF2) region C...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28500742/amino-acids-at-positions-3-168-and-169-are-associated-with-the-ability-of-nef-proteins-from-hiv-1-crf01_ae-to-downmodulate-cd4
#7
Wen-Dong Kuang, Yan-Heng Zhou, Ping Zhong, Chiyu Zhang, Jian-Hua Wang
Several HIV-1 subtypes are co-circulating among various high-risk groups in China, and an increasing prevalence of CRF01_AE was observed among MSM (men who have sex with men) within recent years. Patients infected with CRF01_AE may experience a more rapid disease progression than patients infected with non-CRF01_AE; however, the underlying mechanisms remains elusive. HIV-1 Nef is a multifunctional protein and plays critical roles in viral pathogenesis. Nef downregulates CD4 and human leukocyte antigen (HLA) to promote viral transmission and escape from the host immune response...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28500735/increased-expression-of-cd38-and-hladr-in-hiv-infected-patients-with-oral-lesion
#8
Liliane Lins, Érica Farias, Clara Brites-Alves, Alex Torres, Eduardo Martins Netto, Carlos Brites
Persistent immune actiation is associated with innadequate immune recovery in HIV-patients, This study assessed the relationship between frequency of expression of cell activation markers (CD38 and HLADR) and presence of oral lesions in HIV-1 infected patients. Fifty-seven HIV-infected persons, undergoing antiretroviral treatment, were divided into three groups, according to the number of CD T cells and CD4(+) / CD8(+) ratio: adequate; partial; and inadequate immune restauration. All patients underwent full mouth assessments for saliva flow measurement, oral mucosal lesion, periodontal disease, and severity of periodontitis...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28500726/mutations-associated-with-drug-resistance-and-prevalence-of-vaccine-escape-mutations-in-patients-with-chronic-hepatitis-b-infection
#9
Maria Isabel Magalhães A Dos Santos, Sidelcina Pacheco Rugiere, Andreas Stocker, Maria Isabel Schinoni, Raymundo Paraná, Mitermayer G Reis, Luciano K Silva
BACKGROUND: The Brazilian public health system (SUS) has provided antiviral drugs for chronic hepatitis B treatment for over 10 years, but a system for monitoring for drug-related resistance mutations is not available. OBJECTIVES: Determine the presence of HBV mutations associated with resistance to nucleos(t)ide analogs among 81 patients with chronic HBV infection in Salvador - BA - Brazil. STUDY DESIGN: HBV-DNA was PCR amplified with primers deduced from the rt domain at the HBV P gene, the sequence extended 1032 bp (from amino acid 1 to 344 - rt domain)...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28500687/epidemiological-analysis-and-follow-up-of-human-rhinovirus-infection-in-children-with-asthma-exacerbation
#10
Shou-Yan Zheng, Li-Li Wang, Luo Ren, Jian Luo, Wei Liao, En-Mei Liu
To determine the prevalence of human rhinovirus (HRV) infection in children with acute asthma exacerbations, investigation of HRV viral load and severity of asthma exacerbations is also required. Nasopharyngeal aspirates and swabs were collected and assessed for respiratory viruses. HRV-positive samples were sequenced to identify types and determine viral load. Outpatients with asthma exacerbations underwent follow-up evaluations, their swabs were collected and clinical outcomes were recorded at their next clinic visit 4 weeks later...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480979/down-regulation-of-trif-tlr3-and-mavs-in-hcv-infected-liver-correlates-with-the-outcome-of-infection
#11
Premashis Kar, Deepak Kumar, Phani Kumar Gumma, Soumya Jyoti Chowdhury, Vijay Kumar Karra
AIMS: In virus-infected cells, pattern recognition receptors (PRRs) recruits their specific adaptor molecules, mitochondrial antiviral signaling protein (MAVS), TIR-domain-containing adapter-inducing interferon-β (TRIF) and TNF receptor associated factor (TRAF6) which induces interferon. Toll-like receptor 3 (TLR3) induces activation of the NF-kappa B (NF-κB) for interferon production. The study has been designed to assess the correlation of TLR3, MAVS, TRIF and TRAF6 outcome of HCV infection...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480974/comorbidities-and-medications-of-patients-with-chronic-hepatitis-c-under-specialist-care-in-the-uk
#12
Benjamin Hudson, Alex J Walker, William L Irving
Designing services with the capacity and expertise to meet the needs of the chronic hepatitis C (CHC) population in the era of direct acting antivirals (DAAs), and widening access to such treatments, requires detailed understanding of the characteristics and healthcare needs of the existing patient population. In this retrospective analysis of data from the National HCV Research UK Biobank between March 2012-October 2014 the characteristics of the CHC population currently under specialist care in the UK were evaluated - with specific focus upon use of medications, adverse lifestyle choices, and comorbidities...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480969/epidemiological-and-genetic-analysis-concerning-the-non-enterovirus-71-and-non-coxsackievirus-a16-causative-agents-related-to-hand-foot-and-mouth-disease-in-anyang-city-henan-province-china-from-2011-to-2015
#13
Yang Li, Honghong Bao, Xiangping Zhang, Mingqiang Zhai, Xiaobing Bao, Demin Wang, Shuanhu Zhang
Enterovirus 71 (EV-A71) and coxsackievirus A16 (CV-A16) are major pathogens of hand, foot and mouth disease (HFMD) and have been associated with consecutive outbreaks of HFMD in China over the past years. Although several other human enteroviruses (HEVs) have also acted as causative agents of HFMD, published information on their roles in the prevalence of HFMD is limited. This study was conducted to reveal the characteristics of the pathogenic spectrum and molecular epidemiology of the non-EV-71 and non-CV-A16 HEVs in Anyang City, which is located in north-central China and has a population of 5 million...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480966/human-cytomegalovirus-triggers-the-assembly-of-aim2-inflammasome-in-thp-1-derived-macrophages
#14
Yuan Huang, Lingling Liu, Di Ma, Yi Liao, Yuanyuan Lu, Heyu Huang, Wenqing Qin, Xinglou Liu, Feng Fang
Absent in melanoma 2 (AIM2) inflammasome is a multiprotein complex which plays a pivotal role in the host immune response to multiple pathogens. The role of AIM2 in human cytomegalovirus (HCMV) infection is poorly studied. Thus, using a small inference RNA (siRNA) approach and THP-1 derived macrophage cells infected with HCMV AD169 strain, we investigated the impact of HCMV infection on AIM2-mediated molecular events. Compared to wild-type cells, AIM2-defiecient macrophages showed a limited ability to activate caspase-1, process IL-1β, and induce cell death...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480962/human-papillomavirus-type-16-e6-oncoprotein-promotes-proliferation-and-invasion-of-non-small-cell-lung-cancer-cells-through-toll-like-receptor-3-signaling-pathway
#15
Xia Wang, Zhiqiang Zhang, Huimin Cao, Wenyi Niu, Mingying Li, Xiu'e Xi, Jing Wang
Human papillomavirus (HPV) oncoproteins play vital roles in non-small cell lung cancer (NSCLC) pathogenesis, and Toll-like receptors (TLRs) contribute to tumor progression. However, interaction between HPV oncoproteins and TLR signaling in NSCLC progression remains unclear. Thus, the aim of the study was to explore effects of HPV16 E6 oncoprotein-induced TLRs pathway on growth and invasion of NSCLC cells and to examine potential mechanisms being involved. Recombinant plasmid (pcDNA-HPV16 E6) expressing HPV16 E6 protein was constructed...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28480960/itpa-gene-polymorphism-94c-a-effects-on-ribavirin-induced-anemia-during-therapy-in-egyptian-patients-with-chronic-hepatitis-c
#16
Maissa El Raziky, Naglaa Ali Zayed, Amin Abdel Baki, Shimaa Afify Mansour, Rasha Mohamad Hosny Shahin
PROBLEM: Inosine triphosphatase (ITPA) gene variants can protect against ribavirin (RBV)-induced anemia in patients treated for chronic hepatitis C. The aim of this study was to determine the relationship between genetic variants of ITPA polymorphism, anemia, RBV dose reduction and treatment response in hepatitis C virus (HCV)-infected patients. METHOD OF STUDY: This study was conducted on 97 Egyptian chronic HCV patients who were scheduled for pegylated-interferon (PEG-INF) /RBV therapy...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28464479/genetic-variability-of-human-respiratory-syncytial-virus-group-b-in-panama-reveals-a-novel-genotype-ba14
#17
Leyda E Ábrego, Adriana Delfraro, Danilo Franco, Juan Castillo, Marlene Castillo, Brechla Moreno, Sandra López-Vergès, Juan M Pascale, Juan Arbiza
In Panama, human respiratory syncytial virus (HRSV) is responsible of 20 to 40 percent of acute respiratory infections in children under five years old. Currently, little is known about the genetic variability of HRSV in Central America and the Caribbean. Recently, we reported the genetic variability of HRSV-A, however; no studies on HRSV-B in Panama have been described yet. In this study, twenty-four sequences of Panamanian HRSV-B, from children (<5 years) with acute respiratory infections (ARI), collected from July 2008 to November 2012 were analyzed...
May 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28464363/declining-unawareness-of-hcv-infection-parallel-to-declining-prevalence-in-southern-italy
#18
LETTER
Paola Scognamiglio, Pierluca Piselli, Mario Fusco, Francesco Aurelio Pisanti, Diego Serraino, Giuseppe Ippolito, Enrico Girardi, The Collaborating Study Group
We read with interest the paper recently published on the Journal of Medical Virology by Morisco et al. [2017] examining prevalence and risk factors of HCV infection in three administrative district of the city of Naples, in the southern Italy.
May 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28464339/smaller-reduction-of-hepatitis-b-virus-dna-in-liver-tissue-than-in-serum-in-patients-losing-hbeag
#19
Gianluca Tripodi, Simon B Larsson, Gunnar Norkrans, Magnus Lindh
The prognosis and outcome of treatment for chronic hepatitis B virus (HBV) infection are predicted by levels of HBV DNA in serum. These levels are composed of relaxed circular DNA and double stranded linear DNA in viral particles, whereas HBV DNA in liver tissue also can be covalently closed circular DNA (cccDNA) or integrated into the human genome. The aim of this study was to investigate the quantitative relation between HBV DNA in serum and tissue, its change over time and how these markers relate to serum levels of hepatitis B surface antigen (HBsAg)...
May 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28464334/high-prevalence-of-hepatitis-e-virus-infection-in-goats
#20
Feiyan Long, Wenhai Yu, Chenchen Yang, Jue Wang, Yunlong Li, Yi Li, Fen Huang
Hepatitis E virus (HEV) is a major cause of acute hepatitis worldwide, primarily transmitted by fecal-oral route. Zoonotic transmission of HEV from HEV-infected pigs (pork) or cows (milk) to human or non-human primate has been confirmed, but the risk of HEV in goat is still rarely assessed. In the present study, stool, blood, tissues and milk of goat were collected for HEV infection investigation from Dali City of Yunnan Province in China, where raw mutton and goat milk are traditionally consumed. Surprisingly, a high prevalence of HEV infection in goat was found...
May 2, 2017: Journal of Medical Virology
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