Early detection of acute renal failure by serum cystatin C: A new opportunity for a hepatologist

Marek J. Mazur, Raymond L. Heilman – 24 May 2005 – Acute renal failure (ARF) is associated with high mortality. Presently, no specific therapy for ARF exists. Therefore, early detection of ARF is critical to prevent its progression. However, serum creatinine, the standard marker to detect ARF, demonstrates major limitations. We prospectively evaluated whether serum cystatin C detected ARF earlier than serum creatinine. In 85 patients at high risk to develop ARF, serum creatinine and cystatin C were determined daily.

Impact of donor gender on male rat recipients of small‐for‐size liver grafts

Yanli Gu, Olaf Dirsch, Uta Dahmen, Yuan Ji, Qing He, Haidong Chi, Christoph Erich Broelsch – 24 May 2005 – The aim of this study was to assess the impact of donor gender on small‐for‐size (SFS) liver transplantation in male recipients using a rat model. Adult female or male Lewis rats were used as donors and male Lewis rats as recipients. Size‐matched (SM) and SFS liver grafts from either male or female donors were transplanted into male recipients.

Induction of umbilical cord blood–derived β2m−c‐Met+ cells into hepatocyte‐like cells by coculture with CFSC/HGF cells

Yunfang Wang, Xue Nan, Yanhua Li, Rui Zhang, Wen Yue, Fang Yan, Xuetao Pei – 24 May 2005 – Several studies have indicated that adult stem cells derived from bone marrow (BM) and cord blood (CB) can differentiate into hepatocyte‐like cells. This ability is important for the treatment of hepatic diseases with BM or CB as a potential approach. However, methods are still being developed for the efficient induction of stem cell differentiation and expansion to get enough cells to be useful.

Who among cytomegalovirus‐seropositive liver transplant recipients is at risk for cytomegalovirus infection?

Nina Singh, Cheryl Wannstedt, Lois Keyes, Marilyn M. Wagener, Thomas V. Cacciarelli – 24 May 2005 – A vast majority of the transplant recipients are cytomegalovirus (CMV)‐seropositive (R+). We sought to assess variables predictive of CMV infection, specifically in R+ liver transplant recipients. Study patients comprised 182 consecutive liver transplant recipients who survived at least 14 days after transplantation. Surveillance testing was used to detect CMV infection.

Susceptibility to antivirals of a human HBV strain with mutations conferring resistance to both lamivudine and adefovir

Marie‐Noëlle Brunelle, Anne‐Carole Jacquard, Christian Pichoud, David Durantel, Sandra Carrouée‐Durantel, Jean‐Pierre Villeneuve, Christian Trépo, Fabien Zoulim – 24 May 2005 – Mutations within the hepatitis B virus (HBV) polymerase gene conferring drug‐resistance are selected during prolonged lamivudine (3TC) or adefovir dipivoxil (ADV) treatment. Because there is no other approved drug against HBV, treatments with 3TC or ADV are used either sequentially or in addition, depending on treatment response or failure.

Dynamic left ventricular outflow tract obstruction in an orthotopic liver transplant recipient

Jacek B. Cywinski, Maged Argalious, Theodore N. Marks, Brian M. Parker – 24 May 2005 – A 53 year‐old man with Laennec's and hepatitis C–related cirrhosis was found to have dynamic left ventricular outflow tract obstruction during routine evaluation for orthotopic liver transplantation. The outflow tract obstruction gradient was quantified as being 155 to 189 mmHg maximally during dobutamine stress echocardiography. The patient subsequently underwent successful orthotopic liver transplantation at our institution.

Modulation of mitochondrial calcium management attenuates hepatic warm ischemia‐reperfusion injury

Christopher D. Anderson, Janene Pierce, Ian Nicoud, Andrey Belous, Clayton D. Knox, Ravi S. Chari – 24 May 2005 – Hepatic warm ischemia and reperfusion (IR) injury occurs in many clinical situations and has an important link to subsequent hepatic failure. The pathogenesis of this injury involves numerous pathways, including mitochondrial‐associated apoptosis. We studied the effect of mitochondrial calcium uptake inhibition on hepatic IR injury using the specific mitochondrial calcium uptake inhibitor, ruthenium red (RR).

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