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Hepatic CEACAM1 expression indicates donor liver quality and prevents early transplantation injury
Although CEACAM1 (CC1) glycoprotein resides at the interface of immune liver injury and metabolic homeostasis, its role in orthotopic liver transplantation (OLT) remains elusive. We aimed to determine whether/how CEACAM1 signaling may affect hepatic ischemia-reperfusion injury (IRI) and OLT outcomes. In the mouse, donor liver CC1 null mutation augmented IRI-OLT (CC1-KO→WT) by enhancing ROS expression and HMGB1 translocation during cold storage, data supported by in vitro studies where hepatic flush from CC1-deficient livers enhanced macrophage activation in bone marrow–derived macrophage cultures. Although hepatic CC1 ...
Source: Journal of Clinical Investigation - April 21, 2020 Category: Biomedical Science Authors: Kojiro Nakamura, Shoichi Kageyama, Fady M. Kaldas, Hirofumi Hirao, Takahiro Ito, Kentaro Kadono, Kenneth J. Dery, Hidenobu Kojima, David W. Gjertson, Rebecca A. Sosa, Maciej Kujawski, Ronald W. Busuttil, Elaine F. Reed, Jerzy W. Kupiec-Weglinski Source Type: research

Systems Biology Approaches and Precision Oral Health: A Circadian Clock Perspective
Conclusion Most head and neck pathologies show a broad cellular heterogeneity making it difficult to achieve an accurate diagnosis and efficient treatment (Graf and Zavodszky, 2017; Lo Nigro et al., 2017). Single cell analysis of circadian omics (Lande-Diner et al., 2015; Abraham et al., 2018), may be a crucial tool needed in the future to fully understand the circadian control of head and neck diseases. It becomes more obvious that there is only a small genetic component but a largely unknown epigenetics and/or environmental component for most of the head and neck pathologies (Moosavi and Motevalizadeh Ardekani, 2016; He...
Source: Frontiers in Physiology - April 15, 2019 Category: Physiology Source Type: research

Plant-Derived Alkaloids: The Promising Disease-Modifying Agents for Inflammatory Bowel Disease
Conclusion This paper summarizes the current findings regarding the anti-colitis activity of plant-derived alkaloids and shows how these alkaloids exhibit significant and beneficial effects in alleviating colonic inflammation. These natural alkaloids are not only promising agents for IBD treatment but are also components for developing new wonder drugs. However, the underlying molecular mechanisms or toxicological evaluation of most plant-derived alkaloids still require much scientific research, and their actual efficacies for IBD patients have not been verified well in field research. Thus, further clinical trials to elu...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research

Caffeic Acid Attenuates Rat Liver Injury after Transplantation Involving PDIA3-Dependent Regulation of NADPH Oxidase.
This study was undertaken to explore the effect of Caffeic acid (CA), a naturally occurring antioxidant, on I/R injury of grafted liver and the mechanisms involved. Male Sprague-Dawley rats underwent orthotopic liver transplantation (LT) in the absence or presence of CA administration. In vitro, HL7702 cells were subjected to hypoxia/reoxygenation. LT led to apparent hepatic I/R injury, manifested by deteriorated liver function, microcirculatory disturbance and increased apoptosis, along with increased PDIA3 expression and nicotinamide adenosine dinucleotide phosphate (NADPH) oxidase activity, and membrane translocation of...
Source: Free Radical Biology and Medicine - September 12, 2018 Category: Biology Authors: Mu HN, Li Q, Fan JY, Pan CS, Liu YY, Yan L, Sun K, Hu BH, Huang DD, Zhao XR, Chang X, Wang CS, He SY, He K, Yang BX, Han JY Tags: Free Radic Biol Med Source Type: research

New role and molecular mechanism of Gadd45a in hepatic fibrosis.
CONCLUSION: Gadd45a may counteract hepatic fibrosis by regulating the activation of HSCs via the inhibition of TGF-β/Smad signaling. PMID: 26973416 [PubMed - in process]
Source: World Journal of Gastroenterology : WJG - March 7, 2016 Category: Gastroenterology Authors: Hong L, Sun QF, Xu TY, Wu YH, Zhang H, Fu RQ, Cai FJ, Zhou QQ, Zhou K, Du QW, Zhang D, Xu S, Ding JG Tags: World J Gastroenterol Source Type: research