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https://www.readbyqxmd.com/read/29050244/the-prognostic-impacts-of-tea-domain-tead-transcription-factor-polymorphisms-in-chinese-hepatocellular-carcinoma-patients
#1
Haiyan Xia, Juan Wen, Weiyong Zhao, Dongying Gu, Zhibin Hu, Jinfei Chen, Zhi Xu
TEA domain (TEAD) transcription factors play an important role in hepatocellular carcinoma (HCC) development and progression by regulating the expression of a number of genes. However, the association of their genetic variations with HCC prognosis remains elusive. Seven potentially functional single nucleotide polymorphisms in TEAD1-4 (rs2304733, rs10831923, rs12104362, rs3745305, rs11756089, rs2076173, rs7135838) were genotyped from 331 hepatitis B virus positive HCC patients using the Sequenom MassARRAY iPLEX platform...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049365/myd88-dependent-inflammasome-activation-and-autophagy-inhibition-contributes-to-ehrlichia-induced-liver-injury-and-toxic-shock
#2
Muhamuda Kader, Mounia El-Azher, Jennie Vorhauer, Bhushan B Kode, Jakob Z Wells, Donna Stolz, George Michalopoulos, Alan Wells, Melanie Scott, Nahed Ismail
Severe hepatic inflammation is a common cause of acute liver injury following systemic infection with Ehrlichia, obligate Gram-negative intracellular bacteria that lack lipopolysaccharide (LPS). We have previously shown that type I IFN (IFN-I) and inflammasome activation are key host-pathogenic mediators that promote excessive inflammation and liver damage following fatal Ehrlichia infection. However, the underlying signals and mechanisms that regulate protective immunity and immunopathology during Ehrlichia infection are not well understood...
October 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29049173/the-influence-of-caveolin-1-gene-polymorphisms-on-hepatitis-b-virus-related-hepatocellular-carcinoma-susceptibility-in-chinese-han-population-a-case-control-study
#3
Jian Zhang, Fangxi Xue, Shuhua Chen, Dongqin Zhang, Cuihong Lu, Gongen Tang
This study aimed to explore the genetic association of polymorphisms in caveolin-1 gene (CAV1) with hepatitis B virus-related hepatocellular carcinoma (HBV-related HCC) susceptibility in a Chinese Han population.The genotyping of polymorphism was conducted using polymerase chain reaction-restriction fragment length polymorphism method. Whether the genotype distribution of polymorphisms in the healthy controls was consistent with Hardy-Weinberg equilibrium (HWE) was detected. The genotype and allele frequency difference between the 2 groups was compared by chi-square test...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049080/extra-glissonian-approach-for-total-laparoscopic-left-hepatectomy-a-prospective-cohort-study
#4
Huan Wei Chen, Fei Wen Deng, Jian Yuan Hu, Jie Yuan Li, Eric Chun Hung Lai, Wan Yee Lau
Laparoscopic liver resection under hemihepatic vascular inflow control has advantages over Pringle's maneuver, especially in patients with cirrhosis. From January 2016 to August 2016, 7 patients who underwent total laparoscopic left hepatectomy under hemihepatic vascular inflow occlusion using the extra-glissonian approach were included in this study. All were hepatitis B carriers and 4 had cirrhosis. The mean operation time was 247 minutes. The mean transection time was 110 minutes. No patient needed additional Pringle's maneuver...
October 18, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29048838/-simultaneous-determination-of-plasma-indole-and-skatole-in-pregnant-women-with-hepatitis-b-virus-infection-by-high-performance-liquid-chromatography
#5
Linlin Deng, Qianna Zhen, Jieying Gao, Mingchao Jin, Min Ding, Biao Xu
A high performance liquid chromatographic (HPLC) method with fluorescence detection (FD) was established to simultaneously determine plasma indole and skatole. Plasma samples were pretreated by liquid-liquid extraction. Chromatographic separation was accomplished on a Shim-Pack VP-ODS column (150 mm×4. 6 mm, 4.6 μ m) using an isocratic mixture of 15 mmol/L sodium dihydrogen phosphate solution and methanol (40:60, v/v). The fluorescence excitation and emission wavelengths were 274 nm and 340 nm, respectively...
July 8, 2017: Se Pu, Chinese Journal of Chromatography
https://www.readbyqxmd.com/read/29048612/regulation-of-erk-and-akt-pathways-by-hepatitis%C3%A2-b-virus%C3%A2-x-protein-via-the-notch1-pathway-in-hepatocellular-carcinoma
#6
Bo Liao, Honghao Zhou, Huifang Liang, Changhai Li
Hepatitis B virus (HBV) is the dominant risk factor for hepatocellular carcinoma (HCC). HBV X protein (HBx) plays crucial roles in HCC carcinogenesis. HBx interferes with several signaling pathways including the Notch1 pathway in HCC. In this study, we found that Notch1 was highly expressed in HCC, especially in large HCCs. Notch1 and HBx co-localized in HCC and their levels were positively correlated with each other. Notch1 expression was more elevated in HepG2.2.15 cells than that in HepG2 cells. HBx activated the Notch1 pathway in HepG2...
September 15, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29048558/modeling-neuro-immune-interactions-during-zika-virus-infection
#7
Pinar Mesci, Angela Macia, Christopher N LaRock, Leon Tejwani, Isabella R Fernandes, Nicole A Suarez, Paolo M de A Zanotto, Patricia C B Beltrão-Braga, Victor Nizet, Alysson R Muotri
Although Zika virus (ZIKV) infection is often asymptomatic, in some cases it can lead to birth defects in newborns or serious neurologic complications in adults. However, little is known about the interplay between immune and neural cells that could contribute to the ZIKV pathology. To understand the mechanisms at play during infection and the antiviral immune response, we focused on neural precursor cells (NPC)-microglia interactions. Our data indicate that human microglia infected with the current circulating Brazilian ZIKV induces a similar pro-inflammatory response found in ZIKV-infected human tissues...
October 17, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29048459/an-efficient-large-scale-survey-of-hepatitis-c-viremia-in-the-democratic-republic-of-the-congo-using-dried-blood-spots
#8
Jonathan B Parr, Evans K Lodge, Vera Holzmayer, Jacques Pepin, Eric H Frost, Michael W Fried, David R McGivern, Stanley M Lemon, Corinna Keeler, Michael Emch, Kashamuka Mwandagalirwa, Antoinette Tshefu, Franck Fwamba, Jérémie Muwonga, Steven R Meshnick, Gavin Cloherty
Background: Efficient viral load testing is needed for hepatitis C (HCV) surveillance and diagnosis. HCV viral load testing using dried blood spots (DBSs), made with a single drop of finger-prick whole blood on filter paper, is a promising alternative to traditional serum- or plasma-based approaches. Methods: We adapted the Abbott Molecular m2000 instrument for high-throughput HCV viremia testing using DBSs with simple specimen processing and applied these methods to estimate the national burden of infection in the Democratic Republic of the Congo (DRC)...
October 18, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29048354/hepatitis-b-virus-and-dna-damage-response-interactions-and-consequences-for-the-infection
#9
REVIEW
Andoni Gómez-Moreno, Urtzi Garaigorta
Hepatitis B virus (HBV) is a major etiologic agent of acute and chronic hepatitis, and end-stage liver disease. Establishment of HBV infection, progression to persistency and pathogenesis are determined by viral and cellular factors, some of which remain still undefined. Key steps of HBV life cycle e.g., transformation of genomic viral DNA into transcriptionally active episomal DNA (cccDNA) or transcription of viral mRNAs from cccDNA, take place in the nucleus of infected cells and strongly depend on enzymatic activities provided by cellular proteins...
October 19, 2017: Viruses
https://www.readbyqxmd.com/read/29047340/occupational-blood-exposures-in-health-care-workers-incidence-characteristics-and-transmission-of-bloodborne-pathogens-in-south-korea
#10
Ju Hyun Lee, Junhyeon Cho, Yung Jung Kim, Sang Hyuk Im, Eun Sun Jang, Jin-Wook Kim, Hong Bin Kim, Sook-Hyang Jeong
BACKGROUND: Health care workers (HCWs) are at high risk for occupational blood exposures (OBEs) and transmission of bloodborne pathogens. This study elucidated the incidence rate and epidemiological characteristics of OBEs among HCWs and investigated the pathogen transmission rate for hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV). METHODS: Self-reported OBEs from January 1, 2011 to December 31, 2015 were obtained from the electronic recording system...
October 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29047108/clinicopathologic-characteristics-and-outcomes-of-transformed-diffuse-large-b-cell-lymphoma-in-hepatitis-c-virus-infected-patients
#11
Jeff Hosry, Roberto N Miranda, Felipe Samaniego, Minas P Economides, Harrys A Torres
Hepatitis C virus (HCV) causes a chronic but curable infection associated with the development of marginal zone lymphoma (MZL) and diffuse large B-cell lymphoma (DLBCL). Preliminary data have shown frequent transformation of indolent lymphoma to DLBCL in HCV-infected patients. To compare their clinicopathologic characteristics and oncologic outcomes, we reviewed the medical records and pathology reports of HCV-infected and uninfected patients with DLBCL that transformed from indolent lymphoma seen at The University of Texas MD Anderson Cancer Center (June 2004-May 2015)...
October 19, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29046795/comparison-of-clinicopathological-characteristics-between-cirrhotic-and-non-cirrhotic-patients-with-intrahepatic-cholangiocarcinoma-a-large-scale-retrospective-study
#12
Lei Yuan, Xianwu Luo, Xinyuan Lu, Bin Yi, Kaijian Chu, Quanyu Cai, Xiaoqing Jiang
The effect of cirrhosis on the characteristics of intrahepatic cholangiocarcinoma (ICC) has not been fully elucidated. The purpose of this study was to investigate how cirrhosis affects the clinicopathological characteristics and survival of surgically treated ICC patients. A total of 1,312 ICC patients surgically treated between January 2007 and December 2011 at a single institution were retrospectively reviewed and the clinicopathological data were compared between cirrhotic and non-cirrhotic patients. Univariate and multivariate analyses were performed to identify significant and independent prognostic factors in this cohort...
October 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29046459/hepatitis-c-virus-replication-depends-on-endosomal-cholesterol-homeostasis
#13
Ina Karen Stoeck, Ji-Young Lee, Keisuke Tabata, Inés Romero-Brey, David Paul, Philipp Schult, Volker Lohmann, Lars Kaderali, Ralf Bartenschlager
Similar to other positive-strand RNA viruses, hepatitis C virus (HCV) causes massive rearrangements of intracellular membranes, resulting in a membranous web (MW) composed of predominantly double membrane vesicles (DMVs), the presumed sites of RNA replication. DMVs are enriched for cholesterol, but mechanistic details on the source and recruitment of cholesterol to the viral replication organelle are only partially known. Here we focused on selected lipid transfer proteins implicated in direct lipid transfer at various endoplasmic reticulum (ER) - membrane contact sites...
October 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29046450/distribution-of-hepatitis-b-virus-nuclear-dna
#14
Mingming Li, Ji A Sohn, Christoph Seeger
Chronic hepatitis B affects over 300 million people who are at risk of developing liver cancer. The basis for the persistence of hepatitis B virus (HBV) in hepatocytes, even in the presence of available antiviral therapies, lies in the accumulation of covalently closed circular (ccc) DNA in nuclei of infected cells. While methods for cccDNA quantification from liver biopsies and cell lines expressing the virus are known, information about cccDNA formation, stability and turnover are lacking. In particular, little is known about the fate of cccDNA during cell division...
October 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29046350/host-transcription-factor-speckled-110kda-sp110-a-nuclear-body-protein-is-hijacked-by-hepatitis-b-virus-protein-x-for-viral-persistence
#15
Isha Sengupta, Dipanwita Das, Shivaram Prasad Singh, Runu Chakravarty, Chandrima Das
Promyelocytic leukemia nuclear bodies (PMLNB) are sub-nuclear organelles which are the hub of numerous proteins. DNA/RNA viruses often hijack cellular-factors resident in PML-NBs to promote their proliferation in host cells. Hepatitis B virus (HBV), belonging to Hepadnaviridae family, remains undetected in early infection as it does not induce the innate immune response and is known to be the cause of several hepatic diseases leading to cirrhosis and hepatocellular carcinoma. The association of PML-NB proteins and HBV is being addressed in a number of recent studies...
October 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29045974/-echocardiographic-diagnosis-of-infracardiac-total-anomalous-pulmonary-venous-connection
#16
S T Ren, Y Wang, J H Zhou, J Long, C H Wang, D B Li, Y Z Huang
OBJECTIVE: To investigate the clinical usefulness of echocardiography in the diagnosis of infracardiac total anomalous pulmonary venous connection (ITAPVC) in neonates and infants. METHODS: Retrospective analysis on 8 patients with ITAPVC was performed using echocardiography between April 2006 and December 2016. There were 4 boys and 4 girls with a mean age of 79.8 days (ranging from 15 to 195 days). A combined scanning via parasternal, subcostal and apical acoustic windows had been employed to diagnose ITAPVC and to trace the course and site of the anomalous pulmonary venous drainage, and to confirm the direction of the inter-atrial shunt and enlargement of right atrium and right ventricle...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29045810/a-novel-next-generation-sequencing-assay-as-an-alternative-to-currently-available-methods-for-hepatitis-c-virus-genotyping
#17
G Dirani, E Paesini, E Mascetra, P Farabegoli, B Dalmo, B Bartolini, A R Garbuglia, M R Capobianchi, V Samri
Chronic HCV infection is one of the leading causes of liver-related death and in many countries it is a primary reason for having a liver transplant. HCV genotype identification has long been used in the clinical practice, since different genotypes have different response rates and required different doses and durations of IFN/RBV treatment; moreover both the frequency and the pattern of resistance to different Direct-Acting Antivirals (DAAs) classes are subtype specific. Hence the necessity to make an accurate HCV subtyping becomes a fundamental tool to optimize current and future clinical management of HCV infected subjects...
October 15, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/29045731/the-chimpanzee-model-of-viral-hepatitis-advances-in-understanding-the-immune-response-and-treatment-of-viral-hepatitis
#18
Robert E Lanford, Christopher M Walker, Stanley M Lemon
Chimpanzees (Pan troglodytes) have contributed to diverse fields of biomedical research due to their close genetic relationship to humans and in many instances due to the lack of any other animal model. This review focuses on the contributions of the chimpanzee model to research on hepatitis viruses where chimpanzees represented the only animal model (hepatitis B and C) or the most appropriate animal model (hepatitis A). Research with chimpanzees led to the development of vaccines for HAV and HBV that are used worldwide to protect hundreds of millions from these diseases and, where fully implemented, have provided immunity for entire generations...
October 17, 2017: ILAR Journal
https://www.readbyqxmd.com/read/29045704/new-onset-diabetes-after-kidney-transplantation-can-the-risk-be-modified-by-choosing-immunosuppression-regimen-based-on-pretransplant-viral-serology
#19
Alfonso H Santos, Chao Chen, Michael J Casey, Karl L Womer, Xuerong Wen
Background: This study aimed to analyze adult kidney transplant recipients (KTRs) for the risk of new-onset diabetes after transplantation (NODAT) associated with viral serologies and immunosuppression regimens [tacrolimus (Tac) + mycophenolate (MPA), cyclosporine (CSA) + MPA, sirolimus (SRL) + MPA, SRL + CSA or SRL +Tac]. Methods: Cox regression models were used to examine the risk of NODAT in the first posttransplant year associated with: (i) CSA + MPA, SRL + MPA, SRL + MPA or SRL + Tac versus reference, Tac + MPA; (ii) pretransplant viral serology [+ or -; hepatitis B core (HBc), hepatitis C (HCV), cytomegalovirus (CMV) or Epstein Barr Virus (EBV)]; and (iii) interactions between immunosuppression regimens and the viral serology found significant in the main analysis...
October 16, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29045547/safety-of-resuming-anti-pd-1-in-patients-with-immune-related-adverse-events-iraes-during-combined-anti-ctla-4-and-anti-pd1-in-metastatic-melanoma
#20
M H Pollack, A Betof, H Dearden, K Rapazzo, I Valentine, A S Brohl, K K Ancell, G V Long, A M Menzies, Z Eroglu, D B Johnson, A N Shoushtari
Background: Combined CTLA-4 and PD-1 blockade induces high rates of immune-related adverse events (irAEs). The safety of resuming anti-PD-1 in patients who discontinue combination therapy due to irAEs is not known. Patients and Methods: We assessed patients who experienced clinically significant irAEs from combined CTLA-4 and PD-1 blockade leading to treatment discontinuation at four academic centers. We assessed the safety of resuming anti-PD-1 in terms of recurrent and distinct irAEs...
October 11, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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