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https://www.readbyqxmd.com/read/28336726/proteomic-signature-of-acute-liver-failure-from-discovery-and-verification-in-a-pig-model-to-confirmation-in-humans
#1
Jie Wang, Zeyu Sun, Jing Jiang, Daxian Wu, Xiaoli Liu, Zhongyang Xie, Ermei Chen, Danhua Zhu, Chao Ye, Xiaoqian Zhang, Wenqian Chen, Hongcui Cao, Lanjuan Li
Acute liver failure (ALF) is a fatal condition hallmarked by rapid development. The present study aimed to describe the dynamic alterations of serum proteins associated with ALF development, and to seek for novel biomarkers of ALF. Miniature pigs (n=30) were employed to establish ALF models by infusing D-galactosamine (GALN, 1.3g/kg). A total of 1589 serum proteins were compared in pooled serum samples (n=10) before and 36 hours after GALN administration through label-free quantitation (LFQ) based shotgun proteomics...
March 23, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28331420/serum-procalcitonin-in-patients-with-acute-liver-failure
#2
Takaaki Sugihara, Masahiko Koda, Toshiaki Okamoto, Kenichi Miyoshi, Tomomitsu Matono, Kenji Oyama, Keiko Hosho, Jun-Ichi Okano, Hajime Isomoto
BACKGROUND: Procalcitonin (PCT) is a known diagnostic marker of bacterial infection. There are no previous reports of PCT concerning acute liver failure (ALF). We evaluated the clinical value of serum PCT levels in patients with ALF. METHODS: Forty-four patients with acute hepatitis (19 men and 25 women; median age, 40 years; range, 20-79 years) were retrospectively enrolled from January 2001 and June 2015. PCT levels were measured by saved serum samples obtained within 3 days after admission...
March 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28329297/association-of-mutations-in-tlr2-signaling-genes-with-fulminant-form-of-hepatitis-b-related-acute-liver-failure
#3
Yue Han, Leilei Gu, Jing Liu, Xinhua Li, Mingjie Wang, Qiming Gong, Demin Yu, Zhitao Yang, Donghua Zhang, Huijuan Yang, Zhongliang Shen, Hongguang Zhu, Youhua Xie, Xinxin Zhang
Background: Fulminant form of hepatitis B related acute liver failure (FHB-ALF) is a rare but highly fatal outcome of acute hepatitis B virus (HBV) infection. Its related host factors have not been studied. Methods.: To identify functionally relevant biological pathway(s) in FHB-ALF pathogenesis, pathway enrichment analysis was conducted on a dataset of rare case-specific variants derived from exomic sequencing of ten unrelated cases. Key variants in identified pathways were validated using 312 HBV disease controls...
February 21, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28321216/facilitated-peptide-transport-via-the-mucosal-epithelium-impact-on-tolerance-induction
#4
Elisabeth E Kenngott, Jennifer Pfeil, Ute Hoffmann, Uta Lauer, Anja A Kühl, Anne Rigby, Anton Pernthaner, Alf Hamann
A hallmark of autoimmunity is the breakdown of tolerance and generation of effector responses against self-antigens. Re-establishment of tolerance in autoimmune disorders was always the most desired treatment option; however, despite many efforts, clinical trials have been largely unsuccessful. This also applies to the generation of oral tolerance, which seems to be a default response type of the mucosa-associated lymphoid tissues to harmless antigens. In this study, we report improved efficacy of oral tolerance induction by coupling antigen with the newly identified mucosal carrier peptide 13C...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28321158/porcine-model-characterizing-various-parameters-assessing-the-outcome-after-acetaminophen-intoxication-induced-acute-liver-failure
#5
Karolin Thiel, Wilfried Klingert, Kathrin Klingert, Matthias H Morgalla, Martin U Schuhmann, Pamela Leckie, Yalda Sharifi, Nathan A Davies, Rajiv Jalan, Andreas Peter, Christian Grasshoff, Alfred Königsrainer, Martin Schenk, Christian Thiel
AIM: To investigate the changes of hemodynamic and laboratory parameters during the course of acute liver failure following acetaminophen overdose. METHODS: Eight pigs underwent a midline laparotomy following jejunal catheter placement for further acetaminophen intoxication and positioning of a portal vein Doppler flow-probe. Acute liver failure was realized by intrajejunal acetaminophen administration in six animals, two animals were sham operated. All animals were invasively monitored and received standardized intensive care support throughout the study...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28320485/mesenchymal-stem-cells-increase-expression-of-heme-oxygenase-1-leading-to-anti-inflammatory-activity-in-treatment-of-acute-liver-failure
#6
Zhi-Heng Zhang, Wei Zhu, Hao-Zhen Ren, Xin Zhao, Shuai Wang, Hu-Cheng Ma, Xiao-Lei Shi
BACKGROUND: Mesenchymal stem cells (MSCs) have been studied for the treatment of acute liver failure (ALF) for several years. MSCs may exert their effect via complex paracrine mechanisms. Heme oxygenase (HO) 1, a rate-limiting enzyme in heme metabolism, exerts a wide range of anti-inflammatory, anti-apoptotic and immunoregulatory effects in a variety of diseases. However, the relationship between MSCs and HO-1 in the treatment of ALF is still unclear. We investigated the preventive and therapeutic potential of intravenously administered BMSCs...
March 20, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28319324/future-of-robotic-surgery-in-urology
#7
Jens J Rassweiler, Riccardo Autorino, Jan Klein, Alex Mottrie, Ali Serdar Goezen, Jens-Uwe Stolzenburg, Koon H Rha, Marc Schurr, Jihad Kaouk, Vipul Patel, Prokar Dasgupta, Evangelos Liatsikos
OBJECTIVES: To provide a comprehensive overview of the current status and future perspectives in the field of robotic systems for urologic surgery. MATERIALS AND METHODS: A non-systematic literature review was performed by using PubMed / Medline search electronic engines. Existing patents for robotic devices were researched using the Google search machine. Findings were critically analyzed also by taking into account personal experience of the authors. RESULTS: Relevant patents of the first generation of the da Vinci platform will expire in 2019...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28294319/grpr-antagonist-protects-from-drug-induced-liver-injury-by-impairing-neutrophil-chemotaxis-and-motility
#8
Rafael S Czepielewski, Natália Jaeger, Pedro E Marques, Maísa M Antunes, Maurício M Rigo, Débora M Alvarenga, Rafaela V Pereira, Rodrigo D da Silva, Tiago G Lopes, Vinícius D da Silva, Bárbara N Porto, Gustavo B Menezes, Cristina Bonorino
Drug-induced liver injury (DILI) is a major cause of acute liver failure (ALF), where hepatocyte necrotic products trigger liver inflammation, release of CXCR2 ligands (IL-8) and other neutrophil chemotactic molecules. Liver infiltration by neutrophils is a major cause of the life threatening tissue damage that ensues. A GRPR (gastrin-releasing peptide receptor) antagonist impairs IL-8-induced neutrophil chemotaxis in vitro. We investigated its potential to reduce acetaminophen-induced ALF, neutrophil migration and mechanisms underlying this phenomenon...
March 10, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28293919/-extracorporeal-liver-support-of-liver-failure
#9
Hans Ulrich Gerth, Michele Pohlen, Hermann Pavenstädt, Hartmut Schmidt
Extracorporeal liver support can be classified into cell-free, artificial methods (artificial liver support, ALS) and cell-based bioartificial methods (bioartificial liver support, BLS). ALS improves biochemical parameters of liver failure by the simultaneous removal of protein-bound and water-soluble substances. Here, the MARS therapy belongs to the most studied methods with a proved beneficial effect on hepatic encephalopathy (HE), hepatorenal syndrome (HRS) or hyperbilirubinemia. However, a general survival advantage of any liver support for liver failure has not been shown yet and is restricted to meta-analyses or patient subgroups...
March 14, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28286789/acute-liver-failure-from-herpes-simplex-virus-in-an-immunocompetent-patient-due-to-direct-inoculation-of-the-peritoneum
#10
Dhruv Chaudhary, Shifat Ahmed, Nanlong Liu, Luis Marsano-Obando
Herpes simplex virus (HSV) hepatitis is a rare cause of acute liver failure (ALF). It carries a mortality rate of 80% if untreated, thus early identification and treatment are critical. Without high clinical suspicion, HSV hepatitis is difficult to diagnose. A 48-year-old Hispanic female presented with a 4-day history of abdominal pain and a vaginal cuff tear requiring laparoscopic repair. She subsequently developed postsurgical disseminated HSV, resulting in ALF. Acyclovir was initiated, but she was resistant to treatment...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28282576/antioxidation-anti-inflammation-and-anti-apoptosis-by-paeonol-in-lps-d-galn-induced-acute-liver-failure-in-mice
#11
Xiaobao Gong, You Yang, Ligua Huang, Qingyan Zhang, Rong-Zhen Wan, Peng Zhang, Baoshun Zhang
To evaluate the hepatoprotective effects and potential mechanisms of paeonol (Pae) against acute liver failure (ALF) induced by lipopolysaccharide (LPS)/d-galactosamine (d-GalN) in mice, we examined anti-oxidative, anti-inflammatory and anti-apoptotic activities of Pae. We found that Pae pretreatment markedly reduced the activities of alanine transaminase and aspartate transaminase as well as the histopathological changes induced by LPS/d-GalN. Catalase, glutathione and superoxide dismutase activities increased and reactive oxygen species activity decreased after Pae treatment compared with LPS/d-GalN treatment...
March 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28276834/drug-induced-liver-injury-due-to-antibiotics
#12
Einar S Björnsson
Drug-induced liver injury (DILI) is an important differential diagnosis in patients with abnormal liver tests and normal hepatobiliary imaging. Of all known liver diseases, the diagnosis of DILI is probably one of the most difficult one to be established. In all major studies on DILI, antibiotics are the most common type of drugs that have been reported. The clinical phenotype of different types of antibiotics associated with liver injury is highly variable. Some widely used antibiotics such as amoxicillin-clavulanate have been shown to have a delayed onset on liver injury and recently cefazolin has been found to lead to liver injury 1-3 weeks after exposure of a single infusion...
February 20, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28274638/development-of-a-self-assembling-protein-nanoparticle-vaccine-targeting-plasmodium-falciparum-circumsporozoite-protein-delivered-in-three-army-liposome-formulation-adjuvants
#13
Labdhi Seth, Karen M Bingham Ferlez, Stephen A Kaba, Derek M Musser, Sharareh Emadi, Gary R Matyas, Zoltan Beck, Carl R Alving, Peter Burkhard, David E Lanar
We have developed FMP014, a vaccine candidate against Plasmodium falciparum malaria, which is comprised of 60 identical monomer protein chains that form an icosahedral shaped self-assembling protein nanoparticle (SAPN). Each monomer contains selected P. falciparum Circumsporozoite Protein (PfCSP) CD4+ and CD8+ epitopes, universal TH epitopes, portions of the α-TSR domain, and 6 repeats of the NANP motifs of the PfCSP. Here we describe the conditions that are required for successful scale-up and cGMP manufacturing of FMP014 with a yield of ≈1...
March 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28274107/pathophysiology-and-management-of-alcoholic-liver-disease-update-2016
#14
REVIEW
Felix Stickel, Christian Datz, Jochen Hampe, Ramon Bataller
Alcoholic liver disease (ALD) is a leading cause of cirrhosis, liver cancer, and acute and chronic liver failure and as such causes significant morbidity and mortality. While alcohol consumption is slightly decreasing in several European countries, it is rising in others and remains high in many countries around the world. The pathophysiology of ALD is still incompletely understood but relates largely to the direct toxic effects of alcohol and its main intermediate, acetaldehyde. Recently, novel putative mechanisms have been identified in systematic scans covering the entire human genome and raise new hypotheses on previously unknown pathways...
March 15, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28272428/secreted-ectodomain-of-siglec-9-and-mcp-1-synergistically-improve-acute-liver-failure-in-rats-by-altering-macrophage-polarity
#15
Takanori Ito, Masatoshi Ishigami, Yoshihiro Matsushita, Marina Hirata, Kohki Matsubara, Tetsuya Ishikawa, Hideharu Hibi, Minoru Ueda, Yoshiki Hirooka, Hidemi Goto, Akihito Yamamoto
Effective treatments for acute liver failure (ALF) are still lacking. We recently reported that a single intravenous administration of serum-free conditioned medium from stem cells derived from human exfoliated deciduous teeth (SHED-CM) into the D-galactosamine (D-Gal)-induced rat ALF model improves the liver injury. However, the specific factors in SHED-CM that are responsible for resolving ALF remain unclear. Here we found that depleting SHED-CM of two anti-inflammatory M2 macrophage inducers-monocyte chemoattractant protein-1 (MCP-1) and the secreted ectodomain of sialic acid-binding Ig-like lectin-9 (sSiglec-9)-abolished its ability to resolve rat ALF...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28272093/elevated-procalcitonin-is-associated-with-bacterial-infection-during-acute-liver-failure-only-when-unrelated-to-acetaminophen-intoxication
#16
Maxime Mallet, Maela Haq, Simona Tripon, Maguy Bernard, Hedi Benosman, Dominique Thabut, Marika Rudler
AIM: The aim of this study was to evaluate the accuracy of procalcitonin (PCT) in predicting bacterial infection and survival without transplantation upon admission in the ICU for acute liver failure (ALF). PATIENTS AND METHODS: From January 2009 until October 2015, all cases of ALF patients admitted in our ICU were retrospectively reviewed and included in the study if the PCT level upon admission was available. Patients with pre-existing liver pathology or ALF in a context of already advanced multiorgan failure were excluded...
March 7, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28259424/long-term-incidence-of-female-specific-cancer-after-bariatric-surgery-or-usual-care-in-the-swedish-obese-subjects-study
#17
Åsa Anveden, Magdalena Taube, Markku Peltonen, Peter Jacobson, Johanna C Andersson-Assarsson, Kajsa Sjöholm, Per-Arne Svensson, Lena M S Carlsson
OBJECTIVE: To examine the long-term effects of bariatric surgery on female-specific cancer in women with obesity. METHODS: The prospective, matched Swedish Obese Subjects (SOS) study was designed to examine outcomes after bariatric surgery. This study includes 1420 women from the SOS cohort that underwent bariatric surgery and 1447 contemporaneously matched controls who received conventional obesity treatment. Age was 37-60years and BMI was ≥38kg/m(2). Information on cancer events was obtained from the Swedish National Cancer Registry...
March 1, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28254629/the-effect-of-nanoparticle-size-and-nls-density-on-nuclear-targeting-in-cancer-and-normal-cells-impaired-nuclear-import-and-aberrant-nanoparticle-intracellular-trafficking-in-glioma
#18
Salma N Tammam, Hassan M E Azzazy, Alf Lamprecht
The cell nucleus is an interesting target in many diseases with particular interest in cancer. Previously, nuclear targeted small and large chitosan nanoparticles (S-NPs≈25nm, and L-NPs≈150nm respectively), modified with low, intermediate and high densities of NLS (L-NLS, I-NLS and H-NLS) were developed and assessed in L929 fibroblasts. However, to evade apoptosis and stimulate tumor growth cancer cells are capable of manipulating the nuclear-cytoplasmic transport on many levels, making NPs that are capable of nuclear targeting in normal cells incapable of doing so in cancer...
February 27, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28253901/the-intranasal-adjuvant-endocine%C3%A2-enhances-both-systemic-and-mucosal-immune-responses-in-aged-mice-immunized-with-influenza-antigen
#19
Tina Falkeborn, Jorma Hinkula, Marie Olliver, Alf Lindberg, Anna-Karin Maltais
Despite availability of annual influenza vaccines, influenza causes significant morbidity and mortality in the elderly. This is at least in part a result of immunosenescence; the age-dependent decrease in immunological competence that results in greater susceptibility to infections and reduced responses to vaccination. To improve protective immune responses in this age group, new vaccines strategies, such as the use of adjuvants, are needed. Here, we evaluated the mucosal vaccine adjuvant Endocine™, formulated with split influenza antigen and administered intranasally in aged (20-month old) mice...
March 3, 2017: Virology Journal
https://www.readbyqxmd.com/read/28248208/extracorporeal-liver-support-systems-in-paediatric-liver-failure
#20
Vandana Jain, Anil Dhawan
Extracorporeal liver support systems (ELSS), encompassing artificial and bio-artificial devices, have been used for decades, with the aim of supporting patients with acute liver failure (ALF) and acute-on chronic liver failure (AoCLF), as a bridge to recovery (ALF only) or liver transplantation (LT), in an era of organ donation shortage. Although biochemical efficacy has been consistently demonstrated by these devices, translation into clinical and survival benefits has been unclear, due to study limitations and lack of reliable prognostic scoring in liver failure...
December 21, 2016: Journal of Pediatric Gastroenterology and Nutrition
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