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Virus C and liver transplantation

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https://www.readbyqxmd.com/read/29149974/liver-transplantation-with-old-grafts-a-ten-year-experience
#1
S Roullet, M Defaye, A Quinart, J-P Adam, L Chiche, C Laurent, M Neau-Cransac
BACKGROUND: The persistent scarcity of donors has prompted liver transplantation teams to find solutions for increasing graft availability. We report our experience of liver transplantations performed with grafts from older donors, specifically over 70 and 80 years old. PATIENTS AND METHODS: We analyzed our prospectively maintained single-center database from January 1, 2005, to December 31, 2014, with 380 liver transplantations performed in 354 patients. Six groups were composed according to donor age: <40 (n = 84), 40 to 49 (n = 67), from 50 to 59 (n = 62), from 60 to 69 (n = 76), from 70 to 79 (n = 64), and ≥80 years (n = 27)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149973/hepatitis-c-virus-recurrence-occurs-earlier-in-patients-receiving-donation-after-circulatory-death-liver-transplant-grafts-compared-with-those-receiving-donation-after-brainstem-death-grafts
#2
S A Townsend, M A Monga, P Nightingale, D Mutimer, A M Elsharkawy, A Holt
INTRODUCTION: Hepatitis C virus (HCV)-related cirrhosis remains the commonest indication for liver transplantation worldwide, yet few studies have investigated the impact of donation after circulatory death (DCD) graft use on HCV recurrence and patient outcomes. DCD grafts have augmented the limited donor organ pool and reduced wait-list mortality, although concerns regarding graft longevity and patient outcome persist. METHODS: This was a single-center study of all HCV + adults who underwent DCD liver transplantation between 2004 and 2014...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149964/chikungunya-infection-in-solid-organ-transplant-recipients
#3
E S Girão, B G Rodrigues Dos Santos, E S do Amaral, P E G Costa, K B Pereira, A H de Araujo Filho, E B Hyppolito, M U Mota, L C B F Marques, C M Costa de Oliveira, S L da Silva, J H P Garcia, P F C B C Fernandes
BACKGROUND: Chikungunya virus (CHIKV) is an emerging mosquito-borne disease that causes acute febrile polyarthralgia and arthritis. CHIKV has spread rapidly to the Americas and, in Brazil, autochthonous cases are increasingly been reported. Solid organ transplant (SOT) recipients who travel to or live in CHIKV endemic areas are under high risk of acquiring the disease. Few data exist regarding the clinical characteristics of CHIKV infections in this population. We report the first case series of CHIKV infection in SOT recipients...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29141010/multiple-effects-of-toxins-isolated-from-crotalus-durissus-terrificus-on-the-hepatitis-c-virus-life-cycle
#4
Jacqueline Farinha Shimizu, Carina Machado Pereira, Cintia Bittar, Mariana Nogueira Batista, Guilherme Rodrigues Fernandes Campos, Suely da Silva, Adélia Cristina Oliveira Cintra, Carsten Zothner, Mark Harris, Suely Vilela Sampaio, Victor Hugo Aquino, Paula Rahal, Ana Carolina Gomes Jardim
Hepatitis C virus (HCV) is one of the main causes of liver disease and transplantation worldwide. Current therapy is expensive, presents additional side effects and viral resistance has been described. Therefore, studies for developing more efficient antivirals against HCV are needed. Compounds isolated from animal venoms have shown antiviral activity against some viruses such as Dengue virus, Yellow fever virus and Measles virus. In this study, we evaluated the effect of the complex crotoxin (CX) and its subunits crotapotin (CP) and phospholipase A2 (PLA2-CB) isolated from the venom of Crotalus durissus terrificus on HCV life cycle...
2017: PloS One
https://www.readbyqxmd.com/read/29137590/a-closing-chapter-hepatitis-c-genotype-3-elimination-in-liver-transplant-sofosbuvir-daclatasvir-in-a-hard-to-treat-population
#5
Eva Maria Teegen, Brigitta Globke, Eckart Schott, Johann Pratschke, Dennis Eurich
OBJECTIVES: Historically, hepatitis C virus genotype 3 infection has not been as hard to treat as genotype 1 using interferon-based therapy. Now, genotype 3 infection can be treated using interferon-free regimes such as the combination of sofosbuvir and daclatasvir, which is a highly successful and reliable therapeutic option before liver transplant. However, real world data are rather limited regarding the use of antivirals (sofosbuvir/daclatasvir) for hepatitis C virus genotype 3 recurrence after liver transplant...
November 15, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29125676/decreasing-mortality-and-disease-severity-in-hepatitis-c-patients-awaiting-liver-transplantation-in-the-united-states
#6
Allison Kwong, W Ray Kim, Ajitha Mannalithara, Nae-Yun Heo, Prowpanga Udompap, Donghee Kim
BACKGROUND: Hepatitis C virus (HCV) infection has been the leading indication for liver transplantation (LT) in the United States. Since 2013, interferon-free antiviral therapy has led to sustained virologic response in many LT candidates. We compared the waitlist mortality of HCV patients with that of patients with other chronic liver diseases. METHODS: Data for primary LT candidates were obtained from the Organ Procurement and Transplantation Network database...
November 10, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29125670/use-of-a-hepatitis-c-virus-hcv-rna-positive-donor-in-a-treated-hcv-rna-negative-liver-transplant-recipient
#7
Isabel Campos-Varela, Eliana Z Agudelo, Monika Sarkar, John P Roberts, Norah A Terrault
The shortage of livers has led most transplant centers to use extended criteria donors. Hepatitis C virus (HCV) RNA-positive donors are typically not given to patients who have cleared HCV. A 64-year-old male with chronic hepatitis C, genotype 1b was listed for LT with hepatocellular carcinoma. While on the waiting list, the patient was treated with sofosbuvir, ledipasvir, and ribavirin and achieved an HCV RNA <15 IU/mL by week 10. At week 18 of a planned 24-week treatment course, the patient underwent deceased-donor LT and received an organ from an anti-HCV-positive donor...
November 10, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29111569/the-influence-of-immunosuppressants-on-direct-acting-antiviral-therapy-is-dependent-on-hepatitis-c-virus-genotype
#8
Alexandra Frey, Katja Piras-Straub, Andreas Walker, Jörg Timm, Guido Gerken, Kerstin Herzer
BACKGROUND: Direct-acting antivirals (DAA) have substantially increased sustained virological response rates after liver transplantation, with improved tolerance compared to interferon-based therapy. The influence of immunosuppressive agents on the efficacy of DAAs has not been clarified. METHODS: Subgenomic HCV replicons for genotype (GT) 1b, 2b, 3a and 4a were treated with the mammalian target of rapamycin (mTOR) inhibitors everolimus and sirolimus or with the calcineurin inhibitors (CNI) cyclosporine or tacrolimus, either alone or in combination with selected DAAs...
November 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29105320/impact-of-hepatitis-c-virus-hcv-antiviral-treatment-on-the-need-for-liver-transplantation-lt
#9
Esteban Sáez-González, Carmen Vinaixa, Fernando San Juan, Vanesa Hontangas, Salvador Benlloch, Victoria Aguilera, Angel Rubín, María García, Martín Prieto, Rafa López-Andujar, Marina Berenguer
BACKGROUND: Therapies for hepatitis C virus (HCV) infection have revolutionized the treatment of patients with chronic HCV infection. The effect of these therapies on the epidemiology of liver transplantation (LT) has yet to be elucidated. AIM: To establish whether the indications for LT have changed as a result of the introduction of new therapies for HCV. MATERIALS AND METHODS: We conducted a retrospective study based on a prospectively maintained registry of patients who undergo LT at La Fe Hospital in Valencia from 1997 to 2016...
November 4, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29105285/historical-epidemiology-of-hepatitis-c-virus-in-select-countries-volume-4
#10
A Maaroufi, A Vince, S M Himatt, R Mohamed, J Fung, O Opare-Sem, A Workneh, R Njouom, I Al Ghazzawi, M Abdulla, K S Kaliaskarova, S Owusu-Ofori, M K Abdelmageed, D Adda, O Akin, A Al Baqali, N Al Dweik, K Al Ejji, S Al Kaabi, K Al Naamani, J Al Qamish, M Al Sadadi, J Al Salman, M AlBadri, S A Al-Busafi, H E Al-Romaihi, W Ampofo, K Antonov, C Anyaike, F Arome, A Bane, S Blach, M M Borodo, S M Brandon, B Bright, M T Butt, I Cardenas, H L Y Chan, C J Chen, D S Chen, P J Chen, R N Chien, W L Chuang, D Cuellar, M Derbala, A A Elbardiny, C Estes, E Farag, I Gamkrelidze, V Garcia, J Genov, Z Ghandour, M Ghuloom, B Gomez, J Gunter, J Habeeb, O Hajelssedig, W Hamoudi, I Hrstic, C C Hu, C F Huang, Y T Hui, R Jahis, D Jelev, A K John, Y Kamel, J H Kao, J Khamis, H Khattabi, I Khoudri, A Konysbekova, I Kotzev, M S Lai, W C Lao, J Layden, M H Lee, O Lesi, M Li, A Lo, C K Loo, B Lukšić, A O Malu, L Mateva, R Mitova, M Morović, K Murphy, B Mustapha, H Nde, A Nersesov, E Ngige, O Njoya, D Nonković, S Obekpa, S Oguche, E E Okolo, O Omede, C Omuemu, P Ondoa, R O Phillips, Y N Prokopenko, H Razavi, D Razavi-Shearer, B Redae, T Reic, T Rinke de Wit, C Rios, S Robbins, L R Roberts, S J Sanad, J D Schmelzer, M Sharma, M Simonova, T H Su, K Sultan, S S Tan, K Tchernev, O T Y Tsang, S Tsang, C Tzeuton, S Ugoeze, B Uzochukwu, R Vi, H U Wani, V W S Wong, R Yacoub, K I Yesmembetov, M Youbi, M F Yuen, K Razavi-Shearer
Due to the introduction of newer, more efficacious treatment options, there is a pressing need for policy makers and public health officials to develop or adapt national hepatitis C virus (HCV) control strategies to the changing epidemiological landscape. To do so, detailed, country-specific data are needed to characterize the burden of chronic HCV infection. In this study of 17 countries, a literature review of published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates was conducted, and inputs were validated by expert consensus in each country...
October 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29104783/expression-levels-of-the-uridine-cytidine-kinase-like-1-protein-as-a-novel-prognostic-factor-for-hepatitis-c-virus-associated-hepatocellular-carcinomas
#11
A Buivydiene, V Liakina, J Valantinas, J Norkuniene, E Mockiene, S Jokubauskiene, R Smaliukiene, L Jancoriene, L Kovalevska, E Kashuba
The expression levels of the two novel oncoproteins uridine-cytidine kinase like-1 (UCKL-1) and mitochondrial ribosomal protein S18-2 (MRPS18-2) were assessed in samples of hepatitis C virus (HCV)-associated hepatocellular carcinoma (HCC) using immunohistochemistry. Tissue microarray (TMA) paraffin blocks were prepared from 42 HCC tumor samples with the corresponding peri-tumor tissues and from 11 tissues of a liver with HCV-induced cirrhosis. We found that the UCKL-1 signal in the liver tissues of the peri-tumor zone in the HCC samples was stronger than that in cirrhosis (50 ± 49...
July 2017: Acta Naturae
https://www.readbyqxmd.com/read/29091154/ventilatory-support-and-hospital-stay-after-liver-transplant-in-cirrhotic-patients-with-hepatopulmonary-syndrome
#12
José Leonardo Faustini Pereira, Lucas Homercher Galant, Eduardo Garcia, Luis Henrique Telles da Rosa, Ajácio Bandeira de Mello Brandão, Cláudio Augusto Marroni
OBJECTIVE: To compare mechanical ventilation time, need for non-invasive ventilation, length of intensive care unit stay, and hospital stay after liver transplant in cirrhotic patients with and with no diagnosis of hepatopulmonary syndrome. METHODS: This was a prospective cohort study with a convenience sample of 178 patients (92 with hepatopulmonary syndrome) who were diagnosed as alcoholic or hepatitis C virus cirrhosis. The statistical analysis included Kolmogorov-Smirnov test and Students t test...
July 2017: Einstein
https://www.readbyqxmd.com/read/29089195/superior-immunogenicity-of-hcv-envelope-glycoproteins-when-adjuvanted-with-cyclic-di-amp-a-sting-activator-or-archaeosomes
#13
A Landi, J Law, D Hockman, M Logan, K Crawford, C Chen, J Kundu, T Ebensen, C A Guzman, L Deschatelets, L Krishnan, D L J Tyrrell, M Houghton
Three decades after the discovery, hepatitis C virus (HCV) is still the leading cause of liver transplantation and poses a major threat to global health. In spite of recent advances in the development of direct acting antivirals, there is still a need for a prophylactic vaccine to limit the virus spread and protect at-risk populations, especially in developing countries, where the cost of the new treatments may severely limit access. The use of recombinant HCV glycoproteins E1E2 (rE1E2) in combination with the MF59, an oil-in-water emulsion-based adjuvant, has previously been shown to reduce the rate of chronicity in chimpanzees and to induce production of cross-neutralizing antibodies and cellular immune responses in human volunteers...
October 28, 2017: Vaccine
https://www.readbyqxmd.com/read/29074219/a-novel-neutralizing-human-monoclonal-antibody-broadly-abrogates-hepatitis-c-virus-infection-in-vitro-and-in-vivo
#14
Isabelle Desombere, Ahmed Atef Mesalam, Richard A Urbanowicz, Freya Van Houtte, Lieven Verhoye, Zhen-Yong Keck, Ali Farhoudi, Koen Vercauteren, Karin E Weening, Thomas F Baumert, Arvind H Patel, Steven K H Foung, Jonathan Ball, Geert Leroux-Roels, Philip Meuleman
Infections with hepatitis C virus (HCV) represent a worldwide health burden and a prophylactic vaccine is still not available. Liver transplantation (LT) is often the only option for patients with HCV-induced end-stage liver disease. However, immediately after transplantation, the liver graft becomes infected by circulating virus, resulting in accelerated progression of liver disease. Although the efficacy of HCV treatment using direct-acting antivirals has improved significantly, immune compromised LT-patients and patients with advanced liver disease remain difficult to treat...
October 23, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29062905/the-impact-of-the-recipient-and-donor-interferon-lambda-3-polymorphism-on-the-course-of-hcv-infection-following-liver-transplantation
#15
Renata Wieczorek-Godlewska, Rafał Płoski, Agnieszka Perkowska-Ptasińska, Olga Tronina, Anna Sadowska, Marek Pacholczyk, Wojciech Lisik, Magdalena Durlik
AIM OF THE STUDY: Aim of the study was to assess the impact of the recipient and donor interferon lambda-3 (IFNL3) single-nucleotide polymorphisms (SNPs) rs12979860 and rs8099917 on the course of hepatitis C virus (HCV) reinfection following liver transplantation. MATERIAL AND METHODS: The study involved 141 subjects after liver transplantation for HCV-induced cirrhosis, performed between 2000 and 2015. It assessed the impact of both SNPs on the outcomes of interferon/ribavirin (IFN/RBV) treatment following transplantation, HCV viral load, laboratory test results, histological lesions in the liver graft, the risk of acute rejection, and the development of hepatocellular carcinoma (HCC) in patient's own liver...
September 2017: Clin Exp Hepatol
https://www.readbyqxmd.com/read/29061957/negative-correlation-between-hepatitis-c-virus-hcv-and-let-7-microrna-family-in-transplanted-livers-the-role-of-rs868-single-nucleotide-polymorphism
#16
Emir Ahmed Sajjad, Marek Radkowski, Agnieszka Perkowska-Ptasińska, Marek Pacholczyk, Magdalena Durlik, Mikołaj Fedorowicz, Renata Pietrzak, Bogna Ziarkiewicz-Wróblewska, Paweł Włodarski, Jacek Malejczyk
BACKGROUND Genetic alterations of TGF-β pathway members, including its transmembrane receptor, TGFBR1, may influence the course of HCV infection. Rs868 is a single-nucleotide polymorphism of the 3'UTR region of TGFBR1, located in a binding site for the conserved let-7/miR98 microRNA family. Previously, we demonstrated a favorable course of hepatitis C recurrence after liver transplantation in rs868 AG genotype of the transplanted liver when compared to rs868 AA. The aim of the present study was to confirm the biological effect of rs868...
October 24, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29055987/-current-status-and-future-views-of-indicators-for-clinical-outcome-of-antiviral-treatment-in-patients-with-hepatitis-b-virus-infection
#17
Y C Yu, J L Hou
The optimal clinical outcomes are the original intention and base to form the short-term, long-term and special goals of antiviral treatment in patients with hepatitis B virus (HBV) infection. The immediate indicators for assessment of antiviral clinical outcomes, which usually need prolonged follow-up, include the liver histopathological changes, the occurrence and severity of liver cirrhosis and hepatocellular carcinoma (HCC), mortality and survival rates, survival time and life quality, prevention rates of Mother-to-Child Transmission and HBV reinfection after liver transplantation, etc...
July 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29053394/vedroprevir-in-the-management-of-hepatitis-c-virus-infection
#18
Ameer Abutaleb, Shyamasundaran Kottilil
Hepatitis C Virus (HCV) is a chronic infection of the liver and the leading cause of liver failure and liver transplantation worldwide. While prior HCV therapies were prolonged and had variable success rates, the advent of direct-acting antivirals (DAAs) has dramatically improved HCV therapy with minimal side effects, shorter treatment durations, and higher cure rates. Areas covered: In this paper, we review the literature discussing the use of Vedroprevir (GS-9451) in treatment of HCV in a variety of patient populations...
October 26, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/29049126/shear-wave-elastography-for-the-assessment-of-liver-fibrosis-in-liver-transplant-recipients-treated-for-hepatitis-c-virus-recurrence
#19
David Korda, Zsuzsanna M Lenard, Zsuzsanna Gerlei, Zsuzsanna Jakab, Anita Haboub-Sandil, Laszlo Wagner, Marina Varga, Orsolya Cseprekal, Adrienn Marton, Denes Horvathy, Szabolcs Takacs, Attila Doros, Zoltan Mathe
OBJECTIVES: Direct-acting antiviral agents have revolutionized hepatitis C therapy, and are also found to be effective in the liver transplant setting. The extent of liver fibrosis influences patient management and is used to monitor therapeutic effects. Shear-wave elastography (SWE) is a relatively new imaging-based method that has not yet been studied extensively in liver transplant patients. Our aim was to study the effect of direct-acting antivirals in heaptitis C recurrence on liver stiffness determined by SWE...
October 18, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29045810/a-novel-next-generation-sequencing-assay-as-an-alternative-to-currently-available-methods-for-hepatitis-c-virus-genotyping
#20
G Dirani, E Paesini, E Mascetra, P Farabegoli, B Dalmo, B Bartolini, A R Garbuglia, M R Capobianchi, V Sambri
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...
January 2018: Journal of Virological Methods
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