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https://www.readbyqxmd.com/read/29239849/hepatitis-during-pregnancy-a-case-of-hemophagocytic-lymphohistiocytosis
#1
Halil Yildiz, Bernard Vandercam, Xave Thissen, Mina Komuta, Nicolas Lanthier, Frederic Debieve, Geraldine Dahlqvist
Hemophagocytic lymphohistiocytosis (HLH) is a rare but severe and potentially fatal syndrome that can occur during pregnancy. A 36 years-old woman, at 29 weeks of gestation, presented with itchiness and jaundice since a week. On clinical examination she was apyrexial and frankly icteric. Laboratory data showed evidence of acute hepatitis. A complete work-up was made excluding viral hepatitis (HAV, HEV, HBV, HCV, HHV6, CMV, EBV) and autoimmune liver disease. Liver diseases related to pregnancy were not completely excluded...
November 24, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29158925/splenic-infarct-and-pulmonary-embolism-as-a-rare-manifestation-of-cytomegalovirus-infection
#2
Prashanth Rawla, Anantha R Vellipuram, Sathyajit S Bandaru, Jeffrey Pradeep Raj
Cytomegalovirus (CMV) is a type of herpes infection that has a characteristic feature of maintaining lifelong latency within the host cell. CMV manifestations can cover a broad spectrum from fever to as severe as pancytopenia, hepatitis, retinitis, meningoencephalitis, Guillain-Barre syndrome, pneumonia, and thrombosis. Multiple case reports of thrombosis associated with CMV have been reported. Deep vein thrombosis or pulmonary embolism is more common in immunocompetent patients while splenic infarct is more common in immunocompromised patients...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/29138513/foxa2-alleviates-ccl4-induced-liver-fibrosis-by-protecting-hepatocytes-in-mice
#3
Wei Wang, Li-Jia Yao, Weifeng Shen, Kai Ding, Pei-Mei Shi, Fei Chen, Jin He, Jin Ding, Xin Zhang, Wei-Fen Xie
The liver-enriched transcription factor Forkhead Box A2 (FOXA2) has been reported to be involved in bile acid homeostasis and bile duct development. However, the role of FOXA2 in liver fibrogenesis remains undefined. In this study, we found that the abundance of FOXA2 was significantly lower in fibrotic livers of patients and mice treated with CCl4 than in controls. Interestingly, the expression level of FOXA2 decreased in hepatocytes, whereas FOXA2 was elevated in hepatic stellate cells (HSCs) of mouse fibrotic livers...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29107929/viral-sequences-in-human-cancer
#4
Paul G Cantalupo, Joshua P Katz, James M Pipas
We have developed a virus detection and discovery computational pipeline, Pickaxe, and applied it to NGS databases provided by The Cancer Genome Atlas (TCGA). We analyzed a collection of whole genome (WGS), exome (WXS), and RNA (RNA-Seq) sequencing libraries from 3052 participants across 22 different cancers. NGS data from nearly all tumor and normal tissues examined contained contaminating viral sequences. Intensive computational and manual efforts are required to remove these artifacts. We found that several different types of cancers harbored Herpesviruses including EBV, CMV, HHV1, HHV2, HHV6 and HHV7...
November 3, 2017: Virology
https://www.readbyqxmd.com/read/29075289/serology-of-viral-infections-and-tuberculosis-screening-in-an-ibd-population-referred-to-a-tertiary-centre-of-southern-italy
#5
Marco Ardesia, Giuseppe Costantino, Placido Mondello, Angela Alibrandi, Walter Fries
BACKGROUND: With the introduction of more potent immunosuppressive agents in inflammatory bowel disease, prevention of opportunistic infections has become necessary by introducing screening programs. Prevalence of the most important infectious agents may vary in different geographical areas. The aim of our study was to assess the immune status for hepatitis B, varicella, mononucleosis, and cytomegalovirus infection together with the determination of the hepatitis C and tuberculosis status in Southern Italy...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29072334/protective-efficacy-of-an-il-12-expressing-baculoviral-malaria-vaccine
#6
Mitsuhiro Iyori, Andrew M Blagborough, Katarzyna A Sala, Hidesato Nishiura, Kentaro Takagi, Shigeto Yoshida
Interleukin-12 (IL-12) plays an important role in antigen-specific adaptive immunity against Plasmodium sporozoites, and this requirement allows for a new approach to developing an effective malaria vaccine. In the present study, we examined whether IL-12 could enhance protective efficacy of a baculovirus-based malaria vaccine. For this aim, a baculoviral vector expressing murine IL-12 (mIL-12) under the control of CMV promoter (BES-mIL-12-Spider) and a baculoviral vector expressing Plasmodium falciparum circumsporozoite protein (PfCSP) with post-transcriptional regulatory element of woodchuck hepatitis virus (BDES-sPfCSP2-WPRE-Spider) were generated...
October 26, 2017: Parasite Immunology
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
#7
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/29042868/characteristics-and-prognosis-of-hepatic-cytomegalovirus-infection-in-children-10-years-of-experience-at-a-university-hospital-in-korea
#8
Chae-Yeon Min, Joo Young Song, Su Jin Jeong
PURPOSE: Studies on cytomegalovirus (CMV) infections in immunocompetent children are lacking, and minimal information is available in the medical literature on hepatic manifestations and complications of CMV. The aims of this study were to evaluate the clinical characteristics, laboratory data, and prognosis of children with CMV hepatitis, and to investigate its prevalence at a single medical center in Korea over a 10-year period. METHODS: One hundred thirty-two children diagnosed with CMV infection based on specific markers (anti-CMV IgM, CMV polymerase chain reaction in blood and urine, or CMV culture of urine) were included in the study...
August 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29037975/modular-cell-based-platform-for-high-throughput-identification-of-compounds-that-inhibit-a-viral-interferon-antagonist-of-choice
#9
Andri Vasou, Christina Paulus, Janina Narloch, Zoe O Gage, Marie-Anne Rameix-Welti, Jean-François Eléouët, Michael Nevels, Richard E Randall, Catherine S Adamson
Viral interferon (IFN) antagonists are a diverse class of viral proteins that counteract the host IFN response, which is important for controlling viral infections. Viral IFN antagonists are often multifunctional proteins that perform vital roles in virus replication beyond IFN antagonism. The critical importance of viral IFN antagonists is highlighted by the fact that almost all viruses encode one of these proteins. Inhibition of viral IFN antagonists has the potential to exert pleiotropic antiviral effects and thus this important protein class represents a diverse plethora of novel therapeutic targets...
October 13, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28933179/-infectious-complications-related-to-liver-transplants
#10
Vladimír Mejzlík, Libuše Husová, Milan Kuman, Soňa Štěpánková, Jiří Ondrášek, Petr Němec
Infection is a feared complication in the process of transplantation. The study discusses sources of infection, screening of infection and risk factors for infection, time occurrence of individual infections during the peritransplantation and posttransplantation course. It describes the most frequent forms of bacterial, viral and mycotic infections. It specifies efficient prophylactic measures that considerably reduce the risk of infection following liver transplantation.Key words: bacterial infection - cytomegalovirus (CMV) - EB virus (EBV) - hepatitis B (HBV) - hepatitis C (HCV) - liver transplantation - mycotic infection prophylaxis - risk factors - viral infection...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28893288/potential-contribution-of-gut-microbiota-and-systemic-inflammation-on-hiv-vaccine-effectiveness-and-vaccine-design
#11
REVIEW
Jean-Pierre Routy, Vikram Mehraj
The quest for an effective HIV-1 vaccine began as soon as the virus causing AIDS was identified. After several disappointing attempts, results of the Phase-III RV144 trial in Thailand were a beacon of hope for the field demonstrating correlation between protection and immunological markers. In order to optimize vaccine response, we underline results from yellow fever and hepatitis B vaccines, where protective responses were predicted by the pre-vaccination level of immune activation in healthy individuals. Such findings support the assessment and reduction of pre-vaccine immune activation in order to optimize vaccine response...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28885709/prenylation-of-viral-proteins-by-enzymes-of-the-host-virus-driven-rationale-for-therapy-with-statins-and-ft-ggt1-inhibitors
#12
REVIEW
Ekaterina S Marakasova, Birgit Eisenhaber, Sebastian Maurer-Stroh, Frank Eisenhaber, Ancha Baranova
Intracellular bacteria were recently shown to employ eukaryotic prenylation system for modifying activity and ensuring proper intracellular localization of their own proteins. Following the same logic, the proteins of viruses may also serve as prenylation substrates. Using extensively validated high-confidence prenylation predictions by PrePS with a cut-off for experimentally confirmed farnesylation of hepatitis delta virus antigen, we compiled in silico evidence for several new prenylation candidates, including IRL9 (CMV) and few other proteins encoded by Herpesviridae, Nef (HIV-1), E1A (human adenovirus 1), NS5A (HCV), PB2 (influenza), HN (human parainfluenza virus 3), L83L (African swine fever), MC155R (molluscum contagiosum virus), other Poxviridae proteins, and some bacteriophages of human associated bacteria...
September 8, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28871140/increased-incidence-of-cytomegalovirus-coinfection-in-hcv-infected-patients-with-late-liver-fibrosis-is-associated-with-dysregulation-of-jak-stat-pathway
#13
Marwa K Ibrahim, Ahmed Khedr, Noha G Bader El Din, Ahmed Khairy, Mostafa K El Awady
Herein, we examined the association between cytomegalovirus (CMV) coinfection and the progression of liver fibrosis in hepatitis C virus (HCV) infection, and investigated the effect of CMV coinfection on JAK-STAT pathway. CMV DNAemia was detected by PCR in DNA from controls (n = 120), and HCV patients with early (F0-F1, n = 131) and late (F2-F4, n = 179) liver fibrosis. By quantitative real time PCR (qRT-PCR), we examined the profile of 8 JAK-STAT transcripts in PBMCs RNA from 90 HCV patients (39 CMV positive and 51 CMV negative), 4 CMV mono-infected patients, and 15 controls...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28868964/poly-%C3%AF%C2%B5-caprolactone-chitosan-nanoparticles-provide-strong-adjuvant-effect-for-hepatitis-b-antigen
#14
Sandra Jesus, Edna Soares, Gerrit Borchard, Olga Borges
AIM: This work aims to investigate the adjuvant effect of poly-ϵ-caprolactone/chitosan nanoparticles (NPs) for hepatitis B surface antigen (HBsAg) and the plasmid DNA encoding HBsAg (pRC/CMV-HBs). METHODS: Both antigens were adsorbed onto preformed NPs. Vaccination studies were performed in C57BL/6 mice. Transfection efficiency was investigated in A549 cell line. RESULTS: HBsAg-adsorbed NPs generated strong anti-HBsAg IgG titers, mainly of IgG1 isotype, and induced antigen-specific IFN-γ and IL-17 secretion by spleen cells...
September 4, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28845855/-role-of-combination-nk-kirs-in-the-natural-history-of-viral-infections
#15
Claudia Colomba, Antonio Cascio, Calogero Caruso, Marcello Trizzino, Claudia Gioè, Giuliana Guadagnino, Antonino Tuttolomondo, Antonio Pinto, Annalisa Saracino, Gioacchino Angarano, Danilo Di Bona
Immunological mechanisms involved in the genesis of the immune response against viral infections take into account the activation of both innate adaptative response. Innate immune defenses trigger a rapid local response, which is often sufficient to control viral infection, and promotes the subsequent activation of specific immune defenses. Natural killer (NK) cells that constitute a subpopulation of lymphocyte-related cells are a key factor of innate immune response and play a role in defense against viral infections by killing infected cells or by producing cytokines and interacting with adaptative immune system's cells...
July 2017: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/28798861/overexpression-of-brg1-alleviates-hepatic-ischemia-reperfusion-induced-acute-lung-injury-through-antioxidative-stress-effects
#16
Mian Ge, Chaojin Chen, Weifeng Yao, Shaoli Zhou, Fei Huang, Jun Cai, Ziqing Hei
AIM: To investigate whether overexpression of Brahma-related gene-1 (Brg1) can alleviate lung injury induced by hepatic ischemia/reperfusion (HIR) and its precise mechanism. METHODS: Cytomegalovirus-transgenic Brg1-overexpressing (CMV-Brg1) mice and wild-type (WT) C57BL/6 mice underwent HIR. Lung histology, oxidative injury markers, and antioxidant enzyme concentrations in the lung were assessed. The protein expression levels of Brg1, nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and NAD(P)H:quinone oxidoreductase 1 (NQO1) in the lung were analyzed by Western blotting...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28780115/foreign-gene-expression-and-induction-of-antibody-response-by-recombinant-fowl-adenovirus-9-based-vectors-with-exogenous-promoters
#17
James G Ackford, Juan C Corredor, Yanlong Pei, Peter J Krell, Grégoy Bédécarrats, E Va Nagy
Fowl adenoviruses (FAdVs) are promising vectors for poultry vaccines and gene therapy. The commonly used human cytomegalovirus (CMV) promoter in recombinant FAdV-9 viruses (recFAdV-9s) leads to foreign gene expression that elicits an antibody response. Despite its strength, studies have shown that the CMV promoter is prone to silencing by methylation hampering the in vivo application of vectors containing this promoter. Therefore, to improve our virus vector system and circumvent potential limitations of silencing, we engineered recFAdV-9s with foreign gene expression cassettes carrying the CMV enhancer/chicken β-actin (CAG) or the human elongation factor 1 alpha (EF1α) promoters with or without the posttranscriptional regulatory element of woodchuck hepatitis virus (WPRE)...
August 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28749008/propofol-post-conditioning-alleviates-hepatic-ischaemia-reperfusion-injury-via-brg1-mediated-nrf2-ho-1-transcriptional-activation-in-human-and-mice
#18
Mian Ge, Huixin Chen, Qianqian Zhu, Jun Cai, Chaojin Chen, Dongdong Yuan, Yi Jin, Weifeng Yao, Ziqing Hei
To explore the effects of propofol post-conditioning (PPC) on hepatic ischaemia/reperfusion injury (HIRI) and the potential mechanisms that might be involved in the interaction of Brahma-related gene1(BRG1) and Nuclear-related factor 2(Nrf2). Patients were randomized into PPC(n = 16) and non-PPC(NPC)( n = 21) groups. Propofol(2 mg/kg) was infused within 10 min. of the onset of liver reperfusion during liver transplantation in the PPC group. Liver function tests, as well as Brg1, Nrf2, Heme oxygenase-1(HO-1) and NADPH:quinone oxidoreductase1(NQO1) expression levels were evaluated...
July 27, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28733264/the-impact-of-toxicities-on-first-year-outcomes-after-ex-vivo-cd34-selected-allogeneic-hematopoietic-cell-transplantation-in-adults-with-hematologic-malignancies
#19
Satyajit Kosuri, Diego Adrianzen Herrera, Michael Scordo, Gunjan L Shah, Christina Cho, Sean M Devlin, Molly A Maloy, Jimmy Nieves, Taylor Borrill, Dean C Carlow, Scott T Avecilla, Richard C Meagher, Richard J O'Reilly, Esperanza B Papadopoulos, Ann A Jakubowski, Guenther Koehne, Boglarka Gyurkocza, Hugo Castro-Malaspina, Brian C Shaffer, Roni Tamari, Sergio A Giralt, Miguel-Angel Perales
Factors that impact first-year morbidity and mortality in adults undergoing myeloablative allogeneic hematopoietic cell transplantation with ex vivo CD34(+) selection have not been previously reported. We assessed all toxicities ≥ grade 3 from the start of conditioning to date of death, relapse, or last contact in 200 patients during the first year after transplantation, identifying 1885 individual toxicities among 17 organ-based toxicity groups. The most prevalent toxicities in the first year were of infectious, metabolic, hematologic, oral/gastrointestinal, hepatic, cardiac, and pulmonary etiologies...
July 18, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28679983/a-case-of-cytomegalovirus-infection-with-splenic-infarction-and-an-esophageal-ulcer-in-an-immunocompetent-adult
#20
REVIEW
Yoshiaki Shimizu, Takuya Komura, Takuya Seike, Ryotaro Nakai, Hitoshi Omura, Takashi Kagaya, Hajime Ohta, Satomi Kasashima, Atsuhiro Kawashima, Masashi Unoura
BACKGROUND: Recently, morbidities due to primary cytomegalovirus (CMV) infection have increased in young Japanese adults because of decreased anti-CMV antibodies in them. CMV infections are typically resolved naturally in immunocompetent individuals, and complications rarely occur. Here we present the case of an immunocompetent adult with CMV infection complicated by splenic infarctions and an esophageal ulcer. CASE REPORT: A 37-year-old male complaining of a prolonged fever and liver injury was admitted to hospital for a closed examination...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
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