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https://www.readbyqxmd.com/read/28798861/overexpression-of-brg1-alleviates-hepatic-ischemia-reperfusion-induced-acute-lung-injury-through-antioxidative-stress-effects
#1
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
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28653972/active-hcv-replication-but-not-hcv-or-cmv-seropositive-status-is-associated-with-incident-and-prevalent-type-2-diabetes-in-persons-living-with-hiv
#6
Andrea De Luca, Patrizia Lorenzini, Antonella Castagna, Massimo Puoti, Nicola Gianotti, Francesco Castelli, Claudio Mastroianni, Franco Maggiolo, Andrea Antinori, Giovanni Guaraldi, Miriam Lichtner, Antonella dʼArminio Monforte
OBJECTIVE: To analyze the association between chronic hepatitis C virus (HCV) and cytomegalovirus (CMV) infections with type 2 diabetes in HIV-infected patients. METHODS: HIV-1-infected patients enrolled in ICONA, a prospective cohort study involving 42 tertiary care centers in Italy, were selected with the following characteristics: for the diabetes incidence analysis, all patients with available CMV IgG results (first available test = baseline) and without type 2 diabetes were followed until onset of type 2 diabetes, last available clinical follow-up, death or September 30, 2014, whichever occurred first; for the prevalence analysis, all ICONA patients were analyzed at their last follow-up visit...
August 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28650593/hhv-6-in-liver-transplantation-a-literature-review
#7
REVIEW
Tuan L Phan, Irmeli Lautenschlager, Raymund R Razonable, Flor M Munoz
Human herpesvirus 6 (HHV-6A and HHV-6B) can cause primary infection or reactivate from latency in liver transplant recipients, which can result in a variety of clinical syndromes, including fever, hepatitis, encephalitis and higher rates of graft dysfunction as well as indirect effects including increased risks of mortality, CMV disease, hepatitis C progression and greater fibrosis scores. Although HHV-6 infection is currently diagnosed by quantifying viral DNA in plasma or blood, biopsy to demonstrate histopathological effects of HHV-6 remains the gold standard for diagnosis of end-organ disease...
June 26, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28642806/the-efficacy-of-epigallocatechin-3-gallate-green-tea-in-the-treatment-of-alzheimer-s-disease-an-overview-of-pre-clinical-studies-and-translational-perspectives-in-clinical-practice
#8
REVIEW
Marco Cascella, Sabrina Bimonte, Maria Rosaria Muzio, Vincenzo Schiavone, Arturo Cuomo
Alzheimer's disease (AD) is a neurodegenerative disorder and the most common form of dementia characterized by cognitive and memory impairment. One of the mechanism involved in the pathogenesis of AD, is the oxidative stress being involved in AD's development and progression. In addition, several studies proved that chronic viral infections, mainly induced by Human herpesvirus 1 (HHV-1), Cytomegalovirus (CMV), Human herpesvirus 2 (HHV-2), and Hepatitis C virus (HCV) could be responsible for AD's neuropathology...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28642136/a-novel-hepatitis-b-virus-derived-cis-acting-sequence-that-enhances-expression-of-transgenes-delivered-by-plasmid-vectors-in-eukaryote-cell-culture-systems
#9
Seoung-Ae Lee, Hong Kim, So-Young Lee, Bum-Joon Kim
We tested the effectiveness of a novel 13-bp hepatitis B virus (HBV)-derived cis-acting element (CAE) (ACCTCGACAAGGC), called the DT2 CAE, in augmenting transgene expression delivered by plasmid vectors in eukaryotic cells. The addition of the DT2 CAE just upstream of the start codon of several different target proteins (luciferase, EGFP, LHB, HBsAg, and MIF) in DNA plasmid constructs enhanced their translation in a posttranscriptional manner, irrespective of cell type (cell lines or primary cells) or promoter (CMV or HBV preS1 promoters), suggesting its feasibility for enhanced protein production in eukaryotic cell systems...
August 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28641094/emerging-concepts-in-cytomegalovirus-infection-following-hematopoietic-stem-cell-transplantation
#10
REVIEW
Jose F Camargo, Krishna V Komanduri
Despite the refinements in molecular methods for the detection of cytomegalovirus (CMV) and the advent of highly effective preemptive strategies, CMV remains a leading cause of morbidity and mortality in hematopoietic cell transplant (HCT) recipients. CMV can cause tissue-invasive disease including pneumonia, hepatitis, colitis, retinitis, and encephalitis. Mortality in HCT recipients with CMV disease can be as high as 60%. CMV infection has been associated with increased risk of secondary bacterial and fungal infections, increased risk of graft-versus-host disease, and high rates of non-relapse mortality following HCT...
June 14, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28593007/case-report-acute-portal-vein-thrombosis-associated-with-acute-cytomegalovirus-infection-in-an-immunocompetent-adult
#11
Fania Puccia, Vania Lombardo, Lydia Giannitrapani, Anna Licata, Giovanni Mazzola, Maurizio Soresi
Cytomegalovirus (CMV) infection is usually asymptomatic and self-limiting in healthy individuals, but significant complications can develop in immunosuppressed patients. Venous or arterial thromboembolic phenomena are uncommon yet very serious complications of CMV infection. Most published reports describe immunosuppressed patients, but thrombotic events in CMV-infected immunocompetent individuals may also occur. We describe the case of an immunocompetent young man with acute CMV hepatitis that was complicated with portal vein thrombosis (PVT)...
June 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28587424/dynamic-relationship-between-infantile-hepatitis-syndrome-and-cytomegalovirus-infection
#12
Guangmeng Wang, Dongjin Feng
We investigated the correlation between cytomegalovirus (CMV) infection and infantile hepatitis syndrome and the correlation between blood ammonia levels in children with CMV-induced hepatitis syndrome and liver function indicators. To analyze the relationship between the positive-negative attributes of CMV infection and the recurrence rate of infantile hepatitis syndrome, a total of 86 cases of children with hepatitis syndrome admitted to Xuzhou Children's Hospital from January 2014 to March 2015 were selected for the study group...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28573685/epidemiology-risk-factors-and-outcomes-of-infections-in-patients-undergoing-liver-transplantation-for-hilar-cholangiocarcinoma
#13
Poornima Ramanan, Nathan W Cummins, Mark P Wilhelm, Julie K Heimbach, Ross Dierkhising, Walter K Kremers, Charles B Rosen, Gregory J Gores, Raymund R Razonable
The epidemiology of infection after liver transplantation for hilar cholangiocarcinoma has not been systematically investigated. In this study of 124 patients, 255 infections occurred in 105 patients during the median follow-up of 4.2 years. The median time to first infection was 15.1 weeks (IQR 1.6-62.6). The most common sites were the abdomen, bloodstream, and musculoskeletal system. Risk factors for any post-transplant infection were pre-transplant VRE colonization (Hazard Ratio [HR] 1.9, P=.002), living donor transplantation (HR 6...
August 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28569786/brg1-mediated-nrf2-ho-1-pathway-activation-alleviates-hepatic-ischemia-reperfusion-injury
#14
Mian Ge, Weifeng Yao, Dongdong Yuan, Shaoli Zhou, Xi Chen, Yihan Zhang, Haobo Li, Zhengyuan Xia, Ziqing Hei
Cytoprotective gene heme oxygenase 1 (HO-1) could be induced by nuclear factor E2-related factor 2 (Nrf2) nuclear translocation. The purpose of this study was to determine the role of Brahma-related gene 1 (Brg1), a catalytic subunit of SWI2/SNF2-like chromatin remodeling complexes, in Nrf2/HO-1 pathway activation during hepatic ischemia-reperfusion (HIR). Our results showed that hepatic Brg1 was inhibited during early HIR while Brg1 overexpression reduced oxidative injury in CMV-Brg1 mice subjected to HIR...
June 1, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28556523/cytomegalovirus-induced-polyarteritis-nodosa-in-a-liver-transplant-recipient
#15
K Abadeer, N Aslam, C Cortese, H M Wadei
Polyarteritis nodosa (PAN) is a necrotizing vasculitis that has been associated with viral infections, especially hepatitis B virus. We hereby report a case of tissue-invasive cytomegalovirus (CMV)-induced PAN in a liver transplant recipient presenting with acute kidney injury and active urinary sediment. Treatment directed against both PAN and CMV resulted in improvement in kidney function, normalization of urinary indices and resolution of the CMV infection. There was no recurrence of either PAN or CMV after a 3-year follow-up period...
May 28, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28533779/cytomegalovirus-driven-adaptive-like-natural-killer-cell-expansions-are-unaffected-by-concurrent-chronic-hepatitis-virus-infections
#16
David F G Malone, Sebastian Lunemann, Julia Hengst, Hans-Gustaf Ljunggren, Michael P Manns, Johan K Sandberg, Markus Cornberg, Heiner Wedemeyer, Niklas K Björkström
Adaptive-like expansions of natural killer (NK) cell subsets are known to occur in response to human cytomegalovirus (CMV) infection. These expansions are typically made up of NKG2C(+) NK cells with particular killer-cell immunoglobulin-like receptor (KIR) expression patterns. Such NK cell expansion patterns are also seen in patients with viral hepatitis infection. Yet, it is not known if the viral hepatitis infection promotes the appearance of such expansions or if effects are solely attributed to underlying CMV infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28499323/-cmv-associated-acute-liver-failure-in-a-patient-receiving-tocilizumab-for-systemic-lupus-erythematosus
#17
Sophie Fromhold-Treu, Andreas Erbersdobler, Manuela Turan, Gunther Neeck, Georg Lamprecht
A 41-year-old female patient was admitted because of febrile jaundice and acute liver failure. The quick and the bilirubin were 21 % and 258 µmol/l, and there was hepatic encephalopathy I°. AST and AP had a maximum of 612 and 215 U/l. Despite a strong left shift in the differential, the CRP had a maximum of 15 mg/l. Because of an atypically presenting systemic lupus erythematosus, she had been treated with Azathioprine, steroids and Tocilizumab until 12 days before admission. The diagnostic workup revealed CMV hepatitis and necrotizing hepatopathy, which was interpreted as toxic hepatitis...
May 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28489305/prolonged-survival-following-pig-to-primate-liver-xenotransplantation-utilizing-exogenous-coagulation-factors-and-costimulation-blockade
#18
J A Shah, M S Patel, N Elias, N Navarro-Alvarez, I Rosales, R A Wilkinson, N J Louras, M Hertl, J A Fishman, R B Colvin, A B Cosimi, J F Markmann, D H Sachs, P A Vagefi
Since the first attempt of pig-to-primate liver xenotransplantation (LXT) in 1968, survival has been limited. We evaluated a model utilizing α-1,3-galactosyltransferase knockout donors, continuous posttransplant infusion of human prothrombin concentrate complex, and immunosuppression including anti-thymocyte globulin, FK-506, methylprednisone, and costimulation blockade (belatacept, n = 3 or anti-CD40 mAb, n = 1) to extend survival. Baboon 1 remained well until postoperative day (POD) 25, when euthanasia was required because of cholestasis and plantar ulcers...
August 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28462079/loss-of-hepatic-deptor-alters-the-metabolic-transition-to-fasting
#19
Alexandre Caron, Mathilde Mouchiroud, Nicolas Gautier, Sébastien M Labbé, Romain Villot, Laurie Turcotte, Blandine Secco, Guillaume Lamoureux, Michael Shum, Yves Gélinas, André Marette, Denis Richard, David M Sabatini, Mathieu Laplante
OBJECTIVE: The mechanistic target of rapamycin (mTOR) is a serine/threonine kinase that functions into distinct protein complexes (mTORC1 and mTORC2) that regulates growth and metabolism. DEP-domain containing mTOR-interacting protein (DEPTOR) is part of these complexes and is known to reduce their activity. Whether DEPTOR loss affects metabolism and organismal growth in vivo has never been tested. METHODS: We have generated a conditional transgenic mouse allowing the tissue-specific deletion of DEPTOR...
May 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28461838/bilateral-chorioretinal-scars-in-a-child-case-report
#20
Anca Tomi, Irina Stefan
The eye manifestations of intrauterine infections are multiple, but chorioretinal scars and/or active chorioretinitis are the most frequently reported. When associated with other systemic manifestations of the infection, the diagnosis becomes more obvious, but when eye involvement is the only abnormality, etiology often remains uncertain. We are presenting the case of an 8-year-old female patient whose fundus lesions revealed an unusual choroidoretinopathy, associated with cataract in one eye. Her general examination and her medical history were unremarkable...
June 2016: Mædica
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