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Hepatic regeneration

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https://www.readbyqxmd.com/read/28316070/the-involvement-of-thrombin-in-the-pathogenesis-of-glioblastoma
#1
REVIEW
Harald Krenzlin, Viola Lorenz, Beat Alessandri
Prothrombin and its active derivative thrombin are key members of the coagulation system. The only site of extra-hepatic thrombin expression is the central nervous system (CNS), where it is involved in brain development, protection, and regeneration. Thrombin affects various degenerative and ischemic CNS diseases like Alzheimer's, multiple sclerosis, cerebral ischemia, and hemorrhage in a dose dependent manner. Additionally, the association of thrombin with various malignancies has recently become evident. Thrombin facilitates the interaction between tumor cells with platelets, endothelial cells, and the adhesion to matrix proteins in various tumor types...
March 19, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28315013/protective-vaccination-and-blood-stage-malaria-modify-dna-methylation-of-gene-promoters-in-the-liver-of-balb-c-mice
#2
Saleh Al-Quraishy, Mohamed A Dkhil, Abdel-Azeem S Abdel-Baki, Foued Ghanjati, Lars Erichsen, Simeon Santourlidis, Frank Wunderlich, Marcos J Araúzo-Bravo
Epigenetic mechanisms such as DNA methylation are increasingly recognized to be critical for vaccination efficacy and outcome of different infectious diseases, but corresponding information is scarcely available for host defense against malaria. In the experimental blood-stage malaria Plasmodium chabaudi, we investigate the possible effects of a blood-stage vaccine on DNA methylation of gene promoters in the liver, known as effector against blood-stage malaria, using DNA methylation microarrays. Naturally susceptible Balb/c mice acquire, by protective vaccination, the potency to survive P...
March 18, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28297787/-umbilical-cord-mesenchymal-stem-cells-and-their-association-with-liver-fibrosis
#3
L Tuo, W Z Zeng, H L Xue, X L Wu
At present, the most effective therapeutic method for end-stage liver fibrosis is liver transplantation. However, the application of liver transplantation is limited by a shortage of liver donors, a high incidence rate of surgical complications, graft-versus-host disease, and high medical costs. Umbilical cord mesenchymal stem cell (UC-MSC) transplantation may become a promising method for the treatment of liver diseases. UC-MSCs are adult stem cells which exhibit multipotential differentiation and can differentiate into hepatic parenchymal cells...
January 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28294559/the-platelet-activating-receptor-c-type-lectin-receptor-2-plays-an-essential-role-in-liver-regeneration-after-partial-hepatectomy-in-mice
#4
Hiroshi Kono, Hideki Fujii, Katsue Suzuki-Inoue, Osamu Inoue, Shinji Furuya, Kazuyoshi Hirayama, Yasuhiro Akazawa, Yuuki Nakata, Chao Sun, Nagaharu Tsukiji, Toshiaki Shirai, Yukio Ozaki
BACKGROUND AND AIM: The aim of the present study was to investigate the role of CLEC-2 in liver regeneration following partial liver resection in mice. MATERIALS AND METHODS: Irradiated chimeric mice transplanted with fetal liver cells from wild-type (WT), CLEC-2 deleted (KO), or CLEC-2 deleted specifically from platelets (flKO) mice were generated. Mice underwent 70% partial hepatectomy (PH). Immunohistochemical staining was performed to investigate the expression of the endogenous ligand for CLEC-2, podoplanin...
March 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28294067/the-infectious-etiology-of-alzheimer-s-disease
#5
Marta Sochocka, Katarzyna Zwolińska, Jerzy Leszek
Inflammation is a part of the first line of defense of the body against invasive pathogens, and plays a crucial role in tissue regeneration and repair. A proper inflammatory response ensures the suitable resolution of inflammation and elimination of harmful stimuli, but when the inflammatory reactions are inappropriate it can lead to damage of the surrounding normal cells. The relationship between infections and Alzheimer's Disease (AD) etiology, especially late-onset AD (LOAD) has been continuously debated over the past three decades...
March 13, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28293730/liver-macrophages-in-healthy-and-diseased-liver
#6
REVIEW
Zeinab Abdullah, Percy A Knolle
Kupffer cells, the largest tissue resident macrophage population, are key for the maintenance of liver integrity and its restoration after injury and infections, as well as the local initiation and resolution of innate and adaptive immunity. These important roles of Kupffer cells were recently identified in healthy and diseased liver revealing diverse functions and phenotypes of hepatic macrophages. High-level phenotypic and genomic analysis revealed that Kupffer cells are not a homogenous population and that the hepatic microenvironment actively shapes both phenotype and function of liver macrophages...
March 14, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28281782/effects-of-lactulose-and-silymarin-on-liver-enzymes-in-cirrhotic-rats
#7
Mozhgan Ghobadi Pour, Naser Mirazi, Hojjatollah Alaei, Shirin Moradkhani, Ziba Rajaei, Alireza Monsef Esfahani
Silymarin, a mixture of antihepatotoxic flavonolignans used in the treatment of liver diseases, and lactulose, a nonabsorbable synthetic disaccharide, were investigated to analyze their probable synergic and healing effects in a hepatic cirrhotic rat model. Liver damage was induced by the administration and subsequent withdrawal of thioacetamide. The significant decrease in liver enzymes and malondialdehyde levels confirmed the curative effects of silymarin and lactulose. In the silymarin + lactulose group, liver enzyme and malondialdehyde levels were significantly reduced compared with those in the thioacetamide group...
March 10, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28276299/immunohistochemical-analysis-of-the-stem-cell-marker-lgr5-in-pediatric-liver-disease
#8
Zahida Khan, Anne Orr, George K Michalopoulos, Sarangarajan Ranganathan
Aims In regenerating liver, hepatic progenitor cells (HPCs) are recruited in response to injury; however, few highly specific human HPC markers exist for the hepatocyte lineage. Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5), a Wnt-associated stem cell marker, has been extensively studied in intestinal stem cells, but little is known about its expression in human liver. We hypothesized that LGR5+ HPCs are induced in the regenerative response to pediatric liver injury. Methods and results Immunohistochemistry was used to characterize LGR5 expression in pediatric liver explants (n = 36)...
January 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28273656/animal-models-for-associating-liver-partition-and-portal-vein-ligation-for-staged-hepatectomy-alpps-achievements-and-future-perspectives
#9
Andras Budai, Andras Fulop, Oszkar Hahn, Peter Onody, Tibor Kovacs, Tibor Nemeth, Miklos Dunay, Attila Szijarto
BACKGROUND: Since 2012, Associated Liver Partition and Portal vein ligation for Staged hepatectomy (ALPPS) has been standing in the limelight of modern liver surgery and numerous questions have been raised regarding this novel approach. On the one hand, ALPPS has proved to be a valuable method in the treatment of hepatic tumors, while on the other hand, there are many controversies, such as high mortality and morbidity rates. Further surgical research is essential for a better understanding of underlying mechanisms and for enhancing patient safety...
March 9, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28265828/liver-regeneration-is-impaired-in-mice-with-acute-exposure-to-a-very-low-carbohydrate-diet
#10
Hao Chen, Yandie Lin, Wu Sun, Yun Cai, Hao Li
BACKGROUND: The metabolic response to hepatic insufficiency has been implicated in the regulators of normal liver regeneration. Modulation of nutritional factors has been demonstrated to affect liver regeneration. Diets containing very low carbohydrate and high fat levels cause a unique metabolic state, the effect of which on liver regeneration is unknown. METHODS: Mice were placed on standard mice chow (ND) or a very low carbohydrate diet (VLCD) after 70% partial hepatectomy (PH)...
March 6, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28261549/bioengineering-hearts-simple-yet-complex
#11
REVIEW
Doris A Taylor, Rohan B Parikh, Luiz C Sampaio
PURPOSE OF REVIEW: In this review, we focus on the multiple advancements in the field of cardiovascular regenerative medicine and the state-of-the art of building a heart. An organ is comprised of cells, but cells alone do not comprise an organ. We summarize the components needed, the hurdles, and likely translational steps defining the opportunities for discovery. RECENT FINDINGS: The therapies being developed in regenerative medicine aim not only to repair, but also to regenerate or replace ailing tissues and organs...
2017: Current Stem Cell Reports
https://www.readbyqxmd.com/read/28254100/effects-of-intravenous-pharmacopuncture-with-harmonizing-and-releasing-formulas-on-hepatic-recovery-after-partial-hepatectomy-in-rats
#12
Hyun-Jin Lee, Chan Lee, Yun-Kyoung Yim
The objective of this study was to find out the effect of intravenous pharmacopuncture on hepatic recovery after partial hepatectomy in rats. Male Sprague-Dawley rats were randomly divided into five groups: normal group, control group, saline group, and two experimental groups. Except for those in the normal group, the rats underwent partial hepatectomy. Those in the control group did not receive any treatment. Those in the saline group received an intravenous injection with saline. Those in the two experimental groups received intravenous pharmacopuncture with SihoJigak-tang or DanchiSoyo-san extracts (10 mg/kg)...
January 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28249806/application-of-quantitative-targeted-absolute-proteomics-to-profile-protein-expression-changes-of-hepatic-transporters-and-metabolizing-enzymes-during-cholic-acid-promoted-liver-regeneration
#13
Takayuki Miura, Masanori Tachikawa, Hideo Ohtsuka, Koji Fukase, Shun Nakayama, Naoaki Sakata, Fuyuhiko Motoi, Takeshi Naitoh, Yu Katayose, Yasuo Uchida, Sumio Ohtsuki, Tetsuya Terasaki, Michiaki Unno
Preoperative administration of cholic acid (CA) may be an option to increase the liver volume before elective liver resection surgery, so it is important to understand its effects on liver functionality for drug transport and metabolism. The purpose of this study was to clarify the absolute protein expression dynamics of transporters and metabolizing enzymes in the liver of mice fed CA-containing diet for 5 days (CA1) and mice fed CA-containing diet for 5 days followed by diet without CA for 7 days (CA2), in comparison with non CA-fed control mice...
February 26, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28249265/role-of-the-g-protein-coupled-bile-acid-receptor-tgr5-in-liver-damage
#14
Maria Reich, Caroline Klindt, Kathleen Deutschmann, Lina Spomer, Dieter Häussinger, Verena Keitel
BACKGROUND: TGR5 (G protein-coupled bile acid receptor 1, M-Bar) is a G protein-coupled cell surface receptor responsive to bile acids (BA) and different steroid hormones. TGR5 mRNA is detected almost ubiquitious in human and rodent tissues with a very high expression in gallbladder, liver and intestine. In liver, TGR5 is found in sinusoidal endothelial cells, Kupffer cells and cholangiocytes. Activation of TGR5 triggers an elevation of intracellular cyclic AMP and further downstream signalling...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28248832/pathophysiology-of-pediatric-multiple-organ-dysfunction-syndrome
#15
Joseph A Carcillo, Bradley Podd, Rajesh Aneja, Scott L Weiss, Mark W Hall, Timothy T Cornell, Thomas P Shanley, Lesley A Doughty, Trung C Nguyen
OBJECTIVE: To describe the pathophysiology associated with multiple organ dysfunction syndrome in children. DATA SOURCES: Literature review, research data, and expert opinion. STUDY SELECTION: Not applicable. DATA EXTRACTION: Moderated by an experienced expert from the field, pathophysiologic processes associated with multiple organ dysfunction syndrome in children were described, discussed, and debated with a focus on identifying knowledge gaps and research priorities...
March 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28247264/new-paradigms-in-management-of-alcoholic-hepatitis-a-review
#16
REVIEW
Sandeep Singh Sidhu, Omesh Goyal, Harsh Kishore, Simran Sidhu
Severe alcoholic hepatitis (SAH) is defined by modified Maddrey discriminant function ≥32 or Model for End-Stage Liver Disease (MELD) >21 and/or hepatic encephalopathy. It has a 3-month mortality rate ≥30-70 %. Patients with severe alcoholic hepatitis need combined, i.e., static (MELD score) and dynamic (Lille's score), prognostication. Systemic inflammation and poor regeneration are hallmarks of SAH, rather than intrahepatic inflammation. SAH is characterized by dysregulated and uncontrolled systemic inflammatory response followed by weak compensatory antiinflammatory response that leads to increased susceptibility to infection and multiple organ failure...
February 28, 2017: Hepatology International
https://www.readbyqxmd.com/read/28236612/determining-the-effects-of-geraniol-on-liver-regeneration-via-the-nuclear-factor-kb-pathway-after-partial-hepatectomy
#17
Emre Ceyhan, Mediha Canbek
Context • Nuclear factor kB (NF-κB) is a dimeric transcription factor that is involved in the regulation of regenerative and apoptosic genes and plays a key role in liver regeneration after a partial hepatectomy (PH). Complementary medicine is used to treat various diseases and can be obtained from a large number of plants that are found in nature. One such plant is geraniol, and no studies have yet occurred assessing its in vivo effects on liver regeneration. Objective • The current study intended to assess the effects of geraniol on liver regeneration after a 70% PH in rats...
February 27, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28219950/nutritional-modulation-of-mouse-and-human-liver-bud-growth-through-a-branched-amino-acid-metabolism
#18
Hiroyuki Koike, Ran-Ran Zhang, Yasuharu Ueno, Keisuke Sekine, Yun-Wen Zheng, Takanori Takebe, Hideki Taniguchi
Liver bud progenitors experience a transient amplification during early organ growth phase, yet the responsible mechanism was not fully understood. Collective evidence highlighted the specific requirements in stem cell metabolism for expanding organ progenitors during organogenesis and regeneration. Here, transcriptome analyses showed progenitors of mouse and human liver bud growth stage specifically expressed branched chain aminotransferase1 gene, a known breakdown enzyme of branched-chain amino acid (BCAA) for energy generation...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28216578/tumor-microenvironment-a-paradigm-in-hepatocellular-carcinoma-progression-and-therapy
#19
REVIEW
Maryam Tahmasebi Birgani, Vinicio Carloni
Hepatocellular carcinoma (HCC) is among the most lethal and prevalent cancers in the human population. Different etiological factors such as hepatitis B and C virus, alcohol and diabetes cause liver injury followed by inflammation, necrosis and hepatocytes proliferation. Continuous cycles of this destructive-regenerative process culminates in liver cirrhosis which is characterized by regenerating nodules that progress to dysplastic nodules and ultimately HCC. Despite its significance, there is only an elemental understanding of the pathogenetic mechanisms, and there are only limited therapeutic options...
February 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28214206/involvement-of-prolyl-isomerase-pin1-in-the-cell-cycle-progression-and-proliferation-of-hepatic-oval-cells
#20
Prabodh Risal, Nirajan Shrestha, Lokendra Chand, Karl G Sylvester, Yeon Jun Jeong
Liver regenerates remarkably after toxic injury or surgical resection. In the case of failure of resident hepatocytes to restore loss, repopulation is carried out by induction, proliferation, and differentiation of the progenitor cell. Although, some signaling pathways have been verified to contribute oval cell-mediated liver regeneration, role of Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1(Pin1) in the oval cells proliferation is unknown. In the present study, we evaluate the role of Pin1 in oval cells proliferation...
January 18, 2017: Pathology, Research and Practice
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