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https://www.readbyqxmd.com/read/28727010/effect-of-experimentally-increased-protein-supply-to-postpartum-dairy-cows-on-plasma-protein-synthesis-rumen-tissue-proliferation-and-immune-homeostasis
#1
M Larsen, C M Røntved, P K Theil, M Khatun, C Lauridsen, N B Kristensen
The effect of experimentally increasing the postpartum protein supply on plasma protein synthesis, rumen tissue proliferation, and immune homeostasis was studied using 8 periparturient Holstein cows in a complete randomized design. At calving, cows were assigned to abomasal infusion of water (CTRL) or casein (CAS) in addition to a lactation diet. Casein infusion was gradually decreased from 696 ± 1 g/d at +2 d relative to calving (DRTC) to 212 ± 10 g/d at +29 DRTC to avoid excessive supply. Synthesis rate of plasma proteins was measured at -14, +4, +15, and +29 DRTC by measuring [C]Phe isotopic enrichment in arterial plasma free Phe, total plasma proteins, and albumin after 3, 5, and 7 h of jugular ring[C]Phe infusion...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726360/machine-perfusion-in-liver-transplantation-an-essential-treatment-or-just-an-expensive-toy
#2
Andrea A Schlegel, Marit Kalisvaart, Paolo Muiesan
This review focuses on recent developments in preservation techniques in liver transplantation. First, we discuss mechanisms of organ injury when using high-risk organs, including DCD and steatotic grafts and we summarize pathways of ischemia reperfusion injury together with their link to the immune response. Second, we report on improvement strategies of marginal liver grafts by different machine perfusion concepts and summarize perfusion approaches with recent clinical implementation.
July 20, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28725183/bile-acid-mediated-sphingosine-1-phosphate-receptor-2-signaling-promotes-neuroinflammation-during-hepatic-encephalopathy-in-mice
#3
Matthew McMillin, Gabriel Frampton, Stephanie Grant, Shamyal Khan, Juan Diocares, Anca Petrescu, Amy Wyatt, Jessica Kain, Brandi Jefferson, Sharon DeMorrow
Hepatic encephalopathy (HE) is a neuropsychiatric complication that occurs due to deteriorating hepatic function and this syndrome influences patient quality of life, clinical management strategies and survival. During acute liver failure, circulating bile acids increase due to a disruption of the enterohepatic circulation. We previously identified that bile acid-mediated signaling occurs in the brain during HE and contributes to cognitive impairment. However, the influences of bile acids and their downstream signaling pathways on HE-induced neuroinflammation have not been assessed...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28724761/isg15-modulates-type-i-interferon-signaling-and-antiviral-response-during-hepatitis-e-virus-replication
#4
Harini Sooryanarain, Adam J Rogers, Dianjun Cao, Mary Etna R Haac, Yogesh A Karpe, Xiang-Jin Meng
Hepatitis E virus (HEV), a single-stranded positive-sense RNA virus, generally causes a self-limiting acute viral hepatitis, although chronic HEV infection has recently become a significant clinical problem in immunocompromised individuals especially in solid organ transplant recipients. Innate immunity, via type-I interferon (IFN) response, plays an important role during initial stages of a viral infection. ISG15, an IFN-induced ubiquitin-like protein, is known to have an immunomodulatory role, as well as can impart a direct antiviral effect against a wide spectrum of virus families...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28723951/cd8-t-cells-provide-immune-protection-against-murine-disseminated-endotheliotropic-orientia-tsutsugamushi-infection
#5
Guang Xu, Nicole L Mendell, Yuejin Liang, Thomas R Shelite, Yenny Goez-Rivillas, Lynn Soong, Donald H Bouyer, David H Walker
Scrub typhus, caused by a Gram-negative obligately intracellular coccobacillus, Orientia tsutsugamushi, is a long neglected but important tropical disease. Orientia tsutsugamushi causes illness in one million people each year, and 1 billion people are at risk. Without appropriate diagnosis and treatment, the disease can cause severe multiorgan failure with a case fatality rate of 7-15%. The current gaps in knowledge of immunity include the unknown mechanisms of host immunity to O. tsutsugamushi. Using an intravenous (i...
July 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28723948/integrative-functional-analyses-using-rainbow-trout-selected-for-tolerance-to-plant-diets-reveal-nutrigenomic-signatures-for-soy-utilization-without-the-concurrence-of-enteritis
#6
Jason Abernathy, Andreas Brezas, Kevin R Snekvik, Ronald W Hardy, Ken Overturf
Finding suitable alternative protein sources for diets of carnivorous fish species remains a major concern for sustainable aquaculture. Through genetic selection, we created a strain of rainbow trout that outperforms parental lines in utilizing an all-plant protein diet and does not develop enteritis in the distal intestine, as is typical with salmonids on long-term plant protein-based feeds. By incorporating this strain into functional analyses, we set out to determine which genes are critical to plant protein utilization in the absence of gut inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28723419/nf-%C3%AE%C2%BAb-p65-serine-467-phosphorylation-sensitizes-mice-to-weight-gain-and-tnf%C3%AE-or-diet-induced-inflammation
#7
Tabea Riedlinger, Marleen B Dommerholt, Tobias Wijshake, Janine K Kruit, Nicolette Huijkman, Daphne Dekker, Mirjam Koster, Niels Kloosterhuis, Debby P Y Koonen, Alain de Bruin, Darren Baker, Marten H Hofker, Jan van Deursen, Johan W Jonker, M Lienhard Schmitz, Bart van de Sluis
The NF-κB family of transcription factors is essential for an effective immune response, but also controls cell metabolism, proliferation and apoptosis. Its broad relevance and the high connectivity to diverse signaling pathways require a tight control of NF-κB activity. To investigate the control of NF-κB activity by phosphorylation of the NF-κB p65 subunit, we generated a knock-in mouse model in which serine 467 (the mouse homolog of human p65 serine 468) was replaced with a non-phosphorylatable alanine (S467A)...
July 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28721827/melatonin-as-pleiotropic-molecule-with-therapeutic-potential-for-type-2-diabetes-and-cancer
#8
Marzena Wojcik, Michal Krawczyk, Pawel Wojcik, Katarzyna Cypryk, Lucyna Alicja Wozniak
The incidence both of diabetes, particularly type 2 (T2DM), and cancer is increasing worldwide, making these diseases growing global health problem along with increasing healthcare expenditures. The current therapeutic approach for the treatment of these multifactorial diseases is far from satisfactory. Therefore, there is still considerable interest in searching new therapeutic strategies with the use of both natural and synthetic compounds exhibiting higher efficiency and lower toxicity compared to medicines used currently in clinical practice...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28721684/pharmacokinetics-microscale-distribution-and-dosimetry-of-alpha-emitter-labeled-anti-pd-l1-antibodies-in-an-immune-competent-transgenic-breast-cancer-model
#9
Jessie R Nedrow, Anders Josefsson, Sunju Park, Tom Bäck, Robert F Hobbs, Cory Brayton, Frank Bruchertseifer, Alfred Morgenstern, George Sgouros
BACKGROUND: Studies combining immune checkpoint inhibitors with external beam radiation have shown a therapeutic advantage over each modality alone. The purpose of these works is to evaluate the potential of targeted delivery of high LET radiation to the tumor microenvironment via an immune checkpoint inhibitor. METHODS: The impact of protein concentration on the distribution of (111)In-DTPA-anti-PD-L1-BC, an (111)In-antibody conjugate targeted to PD-L1, was evaluated in an immunocompetent mouse model of breast cancer...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28721327/two-catastrophes-in-one-patient-drug-reaction-with-eosinophilia-and-systemic-symptoms-and-toxic-shock-syndrome
#10
Moayed Ibrahim, Diana L Nunley
A 70-year-old, immunocompromised patient presented to the emergency room (ER) five weeks after she was started on clopidogrel. She complained of skin eruption, mouth ulcers, fatigue, and myalgia over the past two weeks. Labs showed severe hyponatremia, acute kidney injury, rhabdomyolysis, hyperkalemia, and elevated liver enzymes. She was treated with steroids and discharged after her condition improved. However, a month later, she returned to the ER, complaining of nausea, vomiting, diarrhea, dizziness, chills, and shortness of breath over the past two days...
June 15, 2017: Curēus
https://www.readbyqxmd.com/read/28719764/surgical-anatomy-does-not-affect-the-progression-of-intestinal-failure-associated-liver-disease-in-neonatal-piglets
#11
Celeste M Lavallee, Pamela R Wizzard, Marihan Lansing, Donna F Vine, Patrick N Nation, Jason Y Yap, Benjamin P Willing, Paul W Wales, Justine M Turner
BACKGROUND: Intestinal failure-associated liver disease (IFALD) causes significant morbidity in neonates with short bowel syndrome (SBS) dependent on parenteral nutrition (PN). Resected ileum, with loss of the ileocecal valve (ICV), is the most common anatomy in SBS, yet its impact on IFALD has not been adequately studied. METHODS: Neonatal piglets were randomized to 75% intestinal resection with jejunocolic anastomosis (JC, n = 12), 75% resection with jejunoileal anastomosis and intact ICV (JI, n = 13), PN-fed sham (sham, n = 14), or sow-fed control (SF, n = 8)...
July 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28719070/sirtuin-1-attenuates-inflammation-and-hepatocellular-damage-in-liver-transplant-ischemia-reperfusion-from-mouse-to-human
#12
Kojiro Nakamura, Shoichi Kageyama, Bibo Ke, Takehiro Fujii, Rebecca A Sosa, Elaine F Reed, Nakul Datta, Ali Zarrinpar, Ronald W Busuttil, Jerzy W Kupiec-Weglinski
Hepatic ischemia-reperfusion injury (IRI), an inevitable antigen-independent inflammation response in cadaveric liver transplantation, correlates with poor early graft function, rejection episodes, and contributes to donor organ shortage. Sirtuin 1 (SIRT1) is a histone deacetylase which may regulate inflammatory cell activity and manage liver function in IRI, though its functional role and clinical relevance remains to be elucidated. We investigated the efficacy of SIRT1 activation in murine liver IRI model and verified the concept of putative SIRT1-mediated hepatoprotection in clinical liver transplantation...
July 18, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28718957/elevated-levels-of-il-22-and-il-17a-producing-t-helper-cells-in-cholangiocarcinomarelated-to-liver-fluke-infection
#13
Si-Biao Su, Jian-Feng Zhang, Fei-Fei Huang, Yu Cen, Hai-Xing Jiang
Cholangiocarcinoma (CCA) associated with liver fluke infection appears to involve inflammatory and immune processes, but whether these involve the proinflammatory cytokine interleukin-17A (IL-17A) and proliferative cytokine interleukin-22 (IL-22) is unclear.We compared levels of IL-22- or IL-17A-producing T helper cells and cytokine levels in 30 CCA patients with long-term liver fluke infection, 40 patients with liver-fluke infection but not CCA and 16 healthy controls. Analyses were performed using immunohistochemistry, flow cytometry, ELISA and RT-PCR...
July 18, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28718696/tumor-induced-disorder-of-iron-metabolism-in-major-organs-a-new-insight-from-chemical-speciation-of-iron
#14
Rujie Chen, Guangcun Chen
Objective To investigate the evolution of iron speciation in major organs of tumor-bearing mice and its role in cancer formation and cancer-associated complications. Methods The concentration and chemical speciation of iron in the spleen, liver, lung, kidney, heart, blood, muscle, and tumor tissue of healthy mice and tumor-bearing mice were studied by synchrotron radiation-based total reflection X-ray fluorescence spectrometry (SR-TXRF) coupled with X-ray absorption spectroscopy (XAS). Results The TXRF and XAS results showed that the iron content, especially the ferritin content, significantly decreased in the blood and spleen but significantly increased in the liver, lung, and muscle of mice after tumor implantation...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28716576/tlr9-mediated-conditioning-of-liver-environment-is-essential-for-successful-intrahepatic-immunotherapy-and-effective-memory-recall
#15
Marcin Cebula, Mathias Riehn, Upneet Hillebrand, Ramona F Kratzer, Florian Kreppel, Georgia Koutsoumpli, Toos Daemen, Hansjörg Hauser, Dagmar Wirth
Immune defense against hepatotropic viruses such as hepatitis B (HBV) and hepatitis C (HCV) poses a major challenge for therapeutic approaches. Intrahepatic cytotoxic CD8 T cells that are crucial for an immune response against these viruses often become exhausted resulting in chronic infection. We elucidated the T cell response upon therapeutic vaccination in inducible transgenic mouse models in which variable percentages of antigen-expressing hepatocytes can be adjusted, providing mosaic antigen distribution and reflecting the varying viral antigen loads observed in patients...
July 14, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28716071/primary-solitary-plasmacytoma-of-the-liver-successful-treatment-with-fractionated-stereotactic-radiotherapy-cyberknife%C3%A2-a-case-report
#16
Thomas Chalopin, Isabelle Barillot, Jean-Paul Biny, Flavie Arbion, Marie Besson, Maria Santiago-Ribeiro, Eric Piver, Olivier Herault, Emmanuel Gyan, Lotfi Benboubker
BACKGROUND: Solitary plasmacytoma of the liver is a very rare and aggressive form of plasma cell dyscrasia. To the best of our knowledge, very few cases have been reported without systemic disease. We reported a rare case of hepatic solitary plasmacytoma that successfully responded to fractionated stereotactic radiotherapy. CASE PRESENTATION: A 64-year-old white French man had monoclonal gammopathy of the immune globulin G lambda type; he developed a cholestasis and cytolysis with the discovery of a subscapular nodule...
July 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28715649/excellent-response-to-anti-pd-1-therapy-in-a-patient-with-hepatocellular-carcinoma-case-report-and-review-of-literature
#17
Hirva Mamdani, Howard Wu, Bert H O'Neil, Amikar Sehdev
Hepatocellular carcinoma (HCC) is an aggressive cancer associated with high mortality worldwide. HCC develops in the setting of underlying cirrhosis due to chronic liver disease. Surgery is usually considered the treatment of choice for early disease; however, most patients have locally advanced or metastatic HCC at diagnosis in which case treatments are limited. Immune checkpoint blockade of programmed death receptor-1 (PD-1) pathway offers a potential treatment strategy based on the encouraging results of the phase I/II trial of nivolumab (Checkmate 040 trial)...
May 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28715128/sibiriline-a-new-small-chemical-inhibitor-of-receptor-interacting-protein-kinase-1-prevents-immune-dependent-hepatitis
#18
Fabienne Le Cann, Claire Delehouzé, Sabrina Penna-Leverrier, Aveline Filliol, Arnaud Comte, Olivier Delalande, Nathalie Desban, Blandine Baratte, Isabelle Gallais, Claire Piquet-Pellorce, Florence Faurez, Marion Bonnet, Yvette Mettey, Peter Goekjian, Michel Samson, Peter Vandenabeele, Stéphane Bach, Marie-Thérèse Dimanche-Boitrel
Necroptosis is a regulated form of cell death involved in several disease models including in particular liver diseases. Receptor-Interacting Protein Kinases, RIPK1 and RIPK3, are the main serine/threonine kinases driving this cell death pathway. We screened a non-commercial kinase-focused chemical library allowed us to identify Sibiriline as new inhibitor of necroptosis induced by TNF in Fas-Associated protein with Death Domain (FADD)-deficient Jurkat cells. Moreover, Sib inhibits necroptotic cell death induced by various death ligands in human or mouse cells while not protecting from caspase-dependent apoptosis...
July 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28714885/differences-in-genetic-background-contribute-to-pseudomonas-exotoxin-a-induced-hepatotoxicity-in-rats
#19
Chien-Chao Chiu, Yu-Chih Wang, Wen-Ching Huang, Yi-Hsun Chen, Shao-Wen Hung, Yen-Te Huang, Hsiao-Li Chuang, Yi-Chih Chang
Pseudomonas aeruginosa exotoxin A (PEA) causes severe hepatotoxicity in experimental animals and is useful in investigations of immune-mediated liver injury. However, strain differences in the sensitivity to PEA-induced hepatotoxicity in rats remains be elucidated. In this study, we determined the severity of PEA-induced hepatotoxicity in six genetically different rat strains. Male LE (Long Evans), Wistar, F344, WKY, BN/SsN and LEW rats were administered a single intravenous injection of PEA (20 μg/kg). Significantly elevated serum ALT and AST levels, massive necrosis and hemorrhage, and numerous TUNEL-positive hepatocytes were observed in BN/SsN rats...
July 15, 2017: Toxins
https://www.readbyqxmd.com/read/28714482/type-2-immunity-hero-turns-villain-in-fatty-liver
#20
Shimona Starling
No abstract text is available yet for this article.
July 17, 2017: Nature Reviews. Immunology
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