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Liver regeneration

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https://www.readbyqxmd.com/read/28086800/relevance-of-fxr-p62-sqstm1-pathway-for-survival-and-protection-of-mouse-hepatocytes-and-liver-especially-with-steatosis
#1
Sanae Haga, Yimin, Michitaka Ozaki
BACKGROUND: Liver injury and regeneration involve complicated processes and are affected by various physio-pathological conditions. Surgically, severe liver injury after surgical resection often leads to fatal liver failure, especially with some underlying pathological conditions such as steatosis. Therefore, protection from the injury of hepatocytes and liver is a serious concern in various clinical settings. METHODS: We studied the effects of the farnesoid X receptor (FXR) on cell survival and steatosis in mouse hepatocytes (AML12 mouse liver cells) and investigated their molecular mechanisms...
January 13, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28086788/comprehensive-circrna-expression-profile-and-selection-of-key-circrnas-during-priming-phase-of-rat-liver-regeneration
#2
Lifei Li, Jianlin Guo, Yanhui Chen, Cuifang Chang, Cunshuan Xu
BACKGROUND: Rat liver regeneration (LR) proceeds along a process of highly organized and ordered tissue growth in response to the loss or injury of liver tissue, during which many physiological processes may play important roles. The molecular mechanism of hepatocyte proliferation, energy metabolism and substance metabolism during rat LR had been elucidated. Further, the correlation of circular RNA (circRNA) abundance with proliferation has recently been clarified. However, the regulatory capacity of circRNA in rat LR remains a fascinating topic...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28078802/evaluation-of-pva-biodegradable-electric-conductive-membranes-for-nerve-regeneration-in-axonotmesis-injuries-the-rat-sciatic-nerve-animal-model
#3
J Ribeiro, A R Caseiro, T Pereira, Pas Armada-da-Silva, I Pires, J Prada, I Amorim, I Leal Reis, S Amado, J D Santos, S Bompasso, S Raimondo, Asp Varejão, S Geuna, A L Luís, A C Maurício
The therapeutic effect of three polyvinyl alcohol (PVA) membranes loaded with electrically conductive materials - carbon nanotubes (PVA-CNTs) and polypyrrole (PVA-PPy) - were tested in vivo for neuro-muscular regeneration after an axonotmesis injury in the rat sciatic nerve. The membranes electrical conductivity measured was 1.5±0.5x10(-6) S/m, 579±0.6x10(-6) S/m, and 1837.5±0.7 x10(-6) S/m, respectively. At week-12, a residual motor and nociceptive deficit were present in all treated groups, but at week-12, a better recovery to normal gait pattern of the PVA-CNTs and PVA-PPy treated groups was observed...
January 12, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28075444/the-role-of-lncrna-malat1-in-the-regulation-of-hepatocyte-proliferation-during-liver-regeneration
#4
Cuicui Li, Lei Chang, Zhiquan Chen, Zhongzhong Liu, Yanfeng Wang, Qifa Ye
Exploring the biological functions of long non-coding RNAs (lncRNAs) has come to the foreground in recent years. Studies have indicated that the lncRNA metastasis‑associated lung adenocarcinoma transcript 1 (MALAT1) not only regulates tumorigenesis in hepatocellular carcinoma, but also controls cell cycle progression in hematopoietic cells. The present study was designed to investigate the biological role of lncRNA MALAT1 in liver regeneration. We carried out a series of assays during liver regeneration following 2/3 partial hepatectomy in mice...
January 11, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28074124/involvement-of-blood-mononuclear-cells-in-the-infertility-age-associated-diseases-and-cancer-treatment
#5
REVIEW
Antonin Bukovsky
Blood mononuclear cells consist of T cells and monocyte derived cells. Beside immunity, the blood mononuclear cells belong to the complex tissue control system (TCS), where they exhibit morphostatic function by stimulating proliferation of tissue stem cells followed by cellular differentiation, that is stopped after attaining the proper functional stage, which differs among various tissue types. Therefore, the term immune and morphostatic system (IMS) should be implied. The TCS-mediated morphostasis also consists of vascular pericytes controlled by autonomic innervation, which is regulating the quantity of distinct tissues in vivo...
December 26, 2016: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28068511/inhibition-of-glycogen-synthase-kinase-3-accelerated-liver-regeneration-after-acetaminophen-induced-hepatotoxicity-in-mice
#6
Bharat Bhushan, Samikshya Poudel, Michael W Manley, Nairita Roy, Udayan Apte
Overdose of acetaminophen (APAP) is the leading cause of acute liver failure (ALF) in the United States. Timely initiation of compensatory liver regeneration after APAP hepatotoxicity is critical for final recovery, but the mechanisms of liver regeneration after APAP-induced ALF have not been extensively explored yet. Previous studies from our laboratory have demonstrated that activation of β-catenin signaling after APAP overdose is associated with timely liver regeneration. Herein, we investigated the role of glycogen synthase kinase 3 (GSK3) in liver regeneration after APAP hepatotoxicity using a pharmacological inhibition strategy in mice...
January 6, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28068414/antibody-array-revealed-prl-3-affects-protein-phosphorylation-and-cytokine-secretion
#7
Yongyong Yang, Shenyi Lian, Lin Meng, Like Qu, Chengchao Shou
Phosphatase of regenerating liver 3 (PRL-3) promotes cancer metastasis and progression via increasing cell motility and invasiveness, however the mechanism is still not fully understood. Previous reports showed that PRL-3 increases the phosphorylation of many important proteins and suspected that PRL-3-enhanced protein phosphorylation may be due to its regulation on cytokines. To investigate PRL-3's impact on protein phosphorylation and cytokine secretion, we performed antibody arrays against protein phosphorylation and cytokines separately...
2017: PloS One
https://www.readbyqxmd.com/read/28064552/the-novel-role-of-%C3%AE-aescin-in-attenuating-ccl4-induced-hepatotoxicity-in-rats
#8
Harsimran Singh, Shabir Sidhu, Kanwaljit Chopra, M U Khan
CONTEXT: β-Aescin has anti-inflammatory, anti-oxidant and antiedematous properties. OBJECTIVE: The present study investigated the hepatoprotective effect and underlying mechanisms of β-aescin in CCl4-induced liver damage. MATERIALS AND METHODS: Thirty-five Wistar rats were divided into six groups: normal control, CCl4 control, silymarin (50 mg/kg, p.o) and β-aescin (0.9, 1.8 and 3.6 mg/kg, i.p.) treatment for 14 d. CCl4 (1 mL/kg, i...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28063905/trichloroethylene-induced-formic-aciduria-in-the-male-c57-bl-6-mouse
#9
Edward A Lock, Paul Keane, Philip H Rowe, John R Foster, Daniel Antoine, Christopher M Morris
1, 1, 2-Trichloroethylene (TCE) is of environmental concern, due to evaporation while handling, chemical processing and leakage from chemical waste sites, leading to its contamination of ground water and air. For several decades there has been issues about possible long term health effects of TCE but recently the International Agency for Research on Cancer (IARC) and the US Environmental Protection Agency classified TCE as a human carcinogen. Links having been established between occupational exposures and kidney cancer and possible links to non-Hodgkin lymphoma and liver cancer, but there is more still more to learn...
January 4, 2017: Toxicology
https://www.readbyqxmd.com/read/28063746/canine-idiopathic-chronic-hepatitis
#10
REVIEW
Nick Bexfield
The World Small Animal Veterinary Association's Liver Standardization Group produced standardized criteria for the histologic diagnosis of canine chronic hepatitis (CH). They define CH by the presence of hepatocellular apoptosis or necrosis, a variable mononuclear or mixed inflammatory cell infiltrate, regeneration, and fibrosis. There are variations in histologic appearance between breeds. Hepatic copper accumulation is an important cause of canine CH. However, where copper accumulation has been ruled out, dogs are said to have idiopathic CH...
January 4, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28063210/the-progress-and-challenges-for-dermal-regeneration-in-tissue-engineering
#11
REVIEW
Hanlei Zhou, Chuangang You, Ronghua Jin, Pan Wu, Qiong Li, Chunmao Han
Wound healing is an inherent response resulting in the restoration of tissue integrity. It is a complex process involving cell migration, proliferation, differentiation, apoptosis, and the synthesis and remodeling of the extracellular matrix (ECM). The dermal tissue is an important component of skin that acts as a connecting link between the epidermis and hypodermis. The appearance of scars and contractures after autologous split-thickness skin transplantation or single epidermis diaphragm transplantation for full skin defects indicates that the dermal tissue plays an important role in skin regeneration...
January 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28061452/augmenter-of-liver-regeneration-protects-against-carbon-tetrachloride-induced-liver-injury-by-promoting-autophagy-in-mice
#12
Hongbo Shi, Weijia Han, Honglin Shi, Feng Ren, Dexi Chen, Yu Chen, Zhongping Duan
BACKGROUND: Augmenter of liver regeneration (ALR) exerts strong hepatoprotective properties in various animal models of liver injury, but its protective mechanisms have not yet been explored. Autophagy is a recently recognized rudimentary cellular response to inflammation and injury. The aim of this study was to test the hypothesis that ALR may protect against acute liver injury through the autophagic pathway. METHODS: The level and role of ALR in liver injury were studied in a mouse model of acute liver injury induced by carbon tetrachloride (CCl4)...
January 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28060824/chronological-profiling-of-plasma-native-peptides-after-hepatectomy-in-pigs-toward-the-discovery-of-human-biomarkers-for-liver-regeneration
#13
Kohta Iguchi, Etsuro Hatano, Takashi Nirasawa, Noriyuki Iwasaki, Motohiko Sato, Gen Yamamoto, Kenya Yamanaka, Tatsuya Okamoto, Yosuke Kasai, Naohiko Nakamura, Hiroaki Fuji, Tomohito Sakai, Nobuto Kakuda, Satoru Seo, Kojiro Taura, Kei Tashiro, Shinji Uemoto, Masaya Ikegawa
Liver regeneration after partial hepatectomy (PHx) is a time-dependent process, which is tightly regulated by multiple signaling cascades. Failure of this complex process leads to posthepatectomy liver failure (PHLF), which is associated with a high rate of mortality. Thus, it is extremely important to establish a useful biomarker of liver regeneration to help prevent PHLF. Here, we hypothesized that alterations in the plasma peptide profile may predict liver regeneration following PHx and hence we set up a diagnostic platform for monitoring posthepatectomy outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28059863/spatiotemporal-expression-of-ski-after-rat-spinal-cord-injury
#14
Kaisheng Zhou, Wei Nan, Dongliang Feng, Zhigang Yi, Yandong Zhu, Zaiyun Long, Sen Li, Haihong Zhang, Yamin Wu
Ski is an evolutionarily conserved protein and widely participates in the regulation of various pathological and physiological processes such as wound healing, liver regeneration, development of the embryonic nervous system, muscle differentiation, and progression of many kinds of tumors. However, the distribution and function of Ski in central nervous system lesion and disease remain unclear. In this study, we investigated the spatiotemporal expression of Ski in a spinal cord injury (SCI) model in adult rats...
January 2, 2017: Neuroreport
https://www.readbyqxmd.com/read/28054243/differential-expression-and-mirna-regulation-of-the-gstp1-gene-in-the-regenerating-liver-of-chiloscyllium-plagiosum
#15
Yinghua Ge, Jiewen Zhang, Xinyi Shi, Conger Lu, Lingrong Yang, Yuanyuan Li, Yanna Chen, Dandan Cheng, Jing Bai, Zhengbing Lv, Lili Liu
Liver regeneration is a complicated process, and understanding the regulatory mechanism will be helpful in the treatment of diseases associated with liver. In this study, the one-third liver resection model was established in Chiloscyllium plagiosum, and the whole transcriptome of the C. plagiosum was generated using the Illumina-Solexa sequencing platform. Differentially expressed genes were analyzed using bioinformatics methods and verified using quantitative real-time PCR (qRT-PCR). Using miRanda and TargetScan, we screened the microRNA library for miRNAs that target the glutathione S-transferase P1(GSTP1) gene...
January 4, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28052241/modeling-dynamics-and-function-of-bone-marrow-cells-in-mouse-liver-regeneration
#16
Elisa Pedone, Vlad-Aris Olteanu, Lucia Marucci, Maria Isabel Muñoz-Martin, Sameh A Youssef, Alain de Bruin, Maria Pia Cosma
In rodents and humans, the liver can efficiently restore its mass after hepatectomy. This is largely attributed to the proliferation and cell cycle re-entry of hepatocytes. On the other hand, bone marrow cells (BMCs) migrate into the liver after resection. Here, we find that a block of BMC recruitment into the liver severely impairs its regeneration after the surgery. Mobilized hematopoietic stem and progenitor cells (HSPCs) in the resected liver can fuse with hepatocytes, and the hybrids proliferate earlier than the hepatocytes...
January 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28051807/%C3%A2-graft-calcification-caused-by-a-torsion-of-the-hepatic-vein-after-a-living-related-donor-liver-transplantation
#17
Kuo-Shyang Jeng, Chun-Chieh Huang, Cheng-Kuan Lin, Chien-Chu Lin, Kuo-Hsin Chen
 The torsion of vessels after liver transplantation rarely occurs. Likewise, calcification of a liver graft has seldom been reported. This report details a case which had torsion of the left hepatic vein on the seventh day after living-related donor liver transplantation. The torsion was reduced soon after re-exploration; however, congestion with partial necrosis of the graft occurred. On the follow-up imaging studies, some resolution of necrosis and graft regeneration were found, yet geographic calcification of the liver graft appeared...
January 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28042087/melatonin-as-a-promising-agent-of-regulating-stem-cell-biology-and-its-application-in-disease-therapy
#18
REVIEW
Shuo Zhang, Simon Chen, Yuan Li, Yu Liu
Stem cells have emerged as an important approach to repair and regenerate damaged tissues or organs and show great therapeutic potential in a variety of diseases. However, the low survival of engrafted stem cells still remains a major challenge for stem cell therapy. As a major hormone from the pineal gland, melatonin has been shown to play an important role in regulating the physiological and pathological functions of stem cells, such as promoting proliferation, migration and differentiation. Thus, melatonin combined with stem cell transplantation displayed promising application potential in neurodegenerative diseases, liver cirrhosis, wound healing, myocardial infarction, kidney ischemia injury, osteoporosis, etc...
December 30, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28039700/extended-hepatectomy-using-the-bipolar-tissue-sealer-an-experimental-model-of-small-for-size-syndrome-in-pigs
#19
Antonios Athanasiou, Michael Kontos, Emmanouil Pikoulis, John Griniatsos, Apostolos Papalois, Eleftherios Spartalis, Demetrios Moris, Evangelos Felekouras, Theodoros Liakakos
PURPOSE: After liver transplantation with a small-for-size liver graft or after extensive hepatectomy for liver malignancies or other non malignant conditions with an insufficient liver volume, the survival of patients depends on liver regeneration. This study was carried out in order to create a new porcine model for the study of small-for-size syndrome (SFSS) after extensive hepatectomy. METHODS: In the present study we used 23 domestic Landrace pigs weighing 28...
November 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28032566/rabbit-model-provides-new-insights-in-liver-regeneration-after-transection-with-portal-vein-ligation
#20
Mingheng Liao, Tao Zhang, Haichuan Wang, Ying Liu, Minxun Lu, Jiwei Huang, Yong Zeng
BACKGROUND: The rabbit model of associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has not been reported before. MATERIALS AND METHODS: New Zealand white rabbits were allocated to two protocols. Protocol 1 involved either liver parenchymal transection (LPT, n = 5) or portal vein ligation (PVL, n = 5). Protocol 2 involved the ligation of different portal vein branches combined with liver partition, including the LPT + 20% PVL group (n = 5; the caudate portal vein was ligated), the LPT + 50% PVL group (n = 5; the left portal vein was ligated), and the LPT + 70% PVL group (n = 10; both veins were ligated)...
November 2, 2016: Journal of Surgical Research
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