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https://www.readbyqxmd.com/read/29773670/high-%C3%AE-tocopherol-dosing-increases-lipid-metabolism-by-changing-redox-state-in-damaged-rat-gastric-mucosa-and-liver-after-ethanol-treatment
#1
Marisela Olguín-Martínez, Diego R Hernández-Espinosa, Rolando Hernández-Muñoz
Regeneration of ethanol-injured rat gastric mucosa must undergo changes in major metabolic pathways to achieve DNA replication and cell proliferation. These events are highly dependent on glucose utilization and inhibited by vitamin E (α-tocopherol) administration. Therefore, this study was aimed at assessing lipid metabolism in the gastric mucosa and ethanol-induced gastric damage and the effect of α-tocopherol administration. For this, rates of fatty acid β-oxidation and lipogenesis were tested in gastric mucosa samples...
May 17, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29770283/cardiac-amyloidosis-diagnosis-with-magnetic-resonance-imaging-a-case-report
#2
Meidi El Issa, Malik El Issa, Besma Sidia
Amyloidosis is a rare disease, which can affect various organs, such as the kidneys, heart, liver, respiratory and gastrointestinal tracts, and the nervous system. It still has a bad prognosis nowadays, despite chemotherapy and the new biotherapies. Its physiopathology corresponds to an irreversible, extracellular accumulation of fibrillous proteins in the tissues. Notwithstanding the fact that a clear diagnosis can be made with histology (of solid injured organs or a subcutaneous biopsy), magnetic resonance imaging (MRI) can show various advantages, especially to prove cardiac involvement, with great specificity and sensibility as well...
March 15, 2018: Curēus
https://www.readbyqxmd.com/read/29758331/liver-regeneration-requires-yap1-tgf%C3%AE-dependent-epithelial-mesenchymal-transition-in-hepatocytes
#3
Seh-Hoon Oh, Marzena Swiderska-Syn, Mark L Jewell, Richard T Premont, Anna Mae Diehl
BACKGROUND: Chronic failure of mechanisms that promote effective regeneration of dead hepatocytes causes replacement of functional hepatic parenchyma with fibrous scar and ultimately results in cirrhosis. Therefore, defining and optimizing mechanisms that orchestrate effective regeneration might prevent cirrhosis. We hypothesized that effective regeneration of injured livers requires hepatocytes to evade the growth inhibitory actions of TGF-β since TGF-β signaling inhibits mature hepatocyte growth but drives cirrhosis pathogenesis...
May 11, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29744785/herb-induced-liver-injury-a-global-concern
#4
Neil Kaplowitz
Chinese medicine and herb medicine though used to treat liver diseases are an important cause of liver injury. Many phytochemicals have the potential to injure the liver, some in a dose-related fashion and more often in an idiosyncratic fashion, meaning occurrence is uncommon to rare in the population using these treatments. As is the case with pharmaceuticals, the phytochemicals are usually tolerated despite either no or mild transient subclinical injury but rarely in some susceptible patients cause moderate to severe liver injury which is likely mediated by the adaptive immune system...
May 3, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29732993/endothelial-progenitor-cells-as-molecular-targets-in-vascular-senescence-and-repair
#5
Divya Rana, Saurabh Sharma
Endothelial progenitor cells are circulating blood cells derived from various sources like bone marrow, spleen, umbilical cord, liver, kidney and other sources that play a vital role in the regeneration of endothelial lining of blood vessels and wound repair. There are two types of EPCs, early EPCs and late EPCs. EPCs are believed to originate from hematopoietic stem cells and mesenchymal stem cells. The mobilization of progenitor cells from bone marrow to the peripheral circulation is highly regulated under both normal physiological conditions and stress...
May 1, 2018: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29727510/chronic-liver-injury-promotes-hepatocarcinoma-cells-seeding-and-growth-associated-with-the-infiltration-by-macrophages
#6
Bénédicte Delire, Patrick Henriet, Pascale Lemoine, Isabelle A Leclercq, Peter Stärkel
Ninety percent of hepatocarcinoma (HCC) develop in a chronically damaged liver. The interactions between non tumor stromal components, especially macrophages, and the cancer cells are still incompletely understood. Our aim was to determine whether a chronically injured liver represents a favorable environment for the seeding and growth of HCC cells, and to evaluate the potential roles of macrophages infiltrated within the tumor. HCC cells were injected into the liver in healthy mice (healthy liver group-HL) and in mice chronically treated with CCl4 for 7 weeks (CCl4 7w group)...
May 4, 2018: Cancer Science
https://www.readbyqxmd.com/read/29709350/hepatic-fibrosis-it-is-time-to-go-with-hepatic-stellate-cell-specific-therapeutic-targets
#7
Devaraj Ezhilarasan, Etienne Sokal, Mustapha Najimi
Hepatic fibrosis is a pathological lesion, characterized by the progressive accumulation of extracellular matrix (ECM) in the perisinusoidal space and it is a major problem in chronic liver diseases. Phenotypic activation of hepatic stellate cells (HSC) plays a central role in the progression of hepatic fibrosis. Retardation of proliferation and clearance of activated HSCs from the injured liver is an appropriate therapeutic strategy for the resolution and treatment of hepatic fibrosis. Clearance of activated HSCs from the injured liver by autophagy inhibitors, proapoptotic agents and senescence inducers with the high affinity toward the activated HSCs may be the novel therapeutic strategy for the treatment of hepatic fibrosis in the near future...
April 21, 2018: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/29696080/therapeutic-effects-of-serum-extracellular-vesicles-in-liver-fibrosis
#8
Li Chen, Ruju Chen, Sherri Kemper, Min Cong, Hong You, David R Brigstock
The lack of approved therapies for hepatic fibrosis seriously limits medical management of patients with chronic liver disease. Since extracellular vesicles (EVs) function as conduits for intercellular molecular transfer, we investigated if EVs from healthy individuals have anti-fibrotic properties. Hepatic fibrogenesis or fibrosis in carbon tetrachloride (CCl4 )- or thioacetic acid-induced liver injury models in male or female mice were suppressed by serum EVs from normal mice (EVN) but not from fibrotic mice (EVF)...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29672927/interleukin-33-contributes-to-ilc2-activation-and-early-inflammation-associated-lung-injury-during-abdominal-sepsis
#9
Hui Xu, Jing Xu, Li Xu, Shuqing Jin, Heth R Turnquist, Rosemary Hoffman, Patricia Loughran, Timothy R Billiar, Meihong Deng
Sepsis is defined as infection with organ dysfunction due to a dysregulated immune response. The lung is one of the most vulnerable organs at the onset of sepsis. Interleukin-33 (IL-33) can be released by injured epithelial and endothelial cells in the lung and regulate immune activation and infiltration. Therefore, we postulated that IL-33 would contribute to the immune response in the lung during sepsis. Using the cecal ligation and puncture (CLP) sepsis model, we show here that IL-33 contributes significantly to both sepsis-induced inflammation in the lung and systemic inflammatory response in the early phase of sepsis...
April 19, 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29669958/allyl-isothiocyanate-reduces-liver-fibrosis-by-regulating-kupffer-cell-activation-in-rats
#10
Jeongtae Kim, Hyojin Bang, Meejung Ahn, Yuna Choi, Gi Ok Kim, Taekyun Shin
Allyl isothiocyanate (AITC), a metabolite of the glucosinolate sinigrin, protects the liver of rats injured by carbon tetrachloride (CCl4 ). This study evaluated whether AITC reduces hepatic fibrosis in rats repetitively exposed to CCl4 . Serum chemistry showed that AITC (doses of 5 and 50 mg) administered to rats exposed to CCl4 significantly reduced the levels of alanine aminotransferase and aspartate aminotransferase activity that were elevated in CCl4 -intoxicated rats. The connective tissue in AITC-treated rats was significantly reduced based on Sirius staining...
April 17, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29661450/effect-of-hepatic-preconditioning-with-the-use-of-methylene-blue-on-the-liver-of-wistar-rats-submitted-to-ischemia-and-reperfusion
#11
T N de Almeida, J P Victorino, J Bistafa Liu, D Tófoli Queiroz Campos, C Graf, M C Jordani, L A Carneiro d'Albuquerque, K D S Mendes, O Castro-E-Silva
BACKGROUND: The liver may be injured in situations where it is submitted to ischemia, such as partial hepatectomy and liver transplantation. In all cases, ischemia is followed by reperfusion and, although it is essential for the reestablishment of tissue function, reperfusion may cause greater damage than ischemia, an injury characterized as ischemia-reperfusion (I/R) damage. The aim of this work was to analyze the effect of ischemic preconditioning with the use of methylene blue (MB; 15 mg/kg) 5 or 15 minutes before I/R (IRMB5' and IRMB15', respectively) on the hepatic injury occurring after I/R...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29623517/mini-review-on-photosensitization-by-plants-in-grazing-herbivores
#12
REVIEW
Syeda M Hussain, Valdo Rodrigues Herling, Paulo Henrique Mazza Rodrigues, Ishrat Naz, Hamayun Khan, Muhammad Tahir Khan
Photosensitization is severe dermatitis or oxidative/chemical changes in the epidermal tissues activated by the light-induced excitation of molecules within the tissue. It is a series of reactions mediated through light receptors and is more common when the plant-produced metabolites are heterocyclic/polyphenols in nature. The areas affected are exposed body parts and mostly non-pigmented areas with least ultraviolet protection. Similarly, cellular alteration also occurs in the affected animal's dermal tissues and body parts and grazing animals by the accumulation and activation of photodynamic molecules...
April 6, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29614353/necrosulfonamide-attenuates-the-spinal-cord-injury-via-necroptosis-inhibition
#13
Yongxiang Wang, Jingcheng Wang, Hua Wang, Xinmin Feng, Yuping Tao, Jiandong Yang, Jun Cai
Spinal cord injury (SCI) is a serious trauma without efficient treatment currently. Necroptosis can be blocked post injury by special inhibitors. To investigate the effects of Necrosulfonamide (NSA) in the treatment of SCI, pathological condition, necroptosis related factors, mitochondrial function and ethological performance were detected. Pathological detection using HE staining was performed first. Reduced lesions and protected neurons were found in the injured spinal cord after treatment with NSA. No obvious toxicity on rat liver, kidney, heart and spleen was detected using HE staining...
March 31, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29606873/noninvasive-evaluation-of-the-migration-effect-of-transplanted-endothelial-progenitor-cells-in-ischemic-muscle-using-a-multimodal-imaging-agent
#14
Xingui Peng, Cong Li, Yingying Bai, Xinyi Wang, Yi Zhang, Yanli An, Gao-Jun Teng, Shenghong Ju
Background: Endothelial progenitor cells (EPCs) play an important role in repairing ischemia tissues. However, the survival, migration and therapeutic efficacy of EPCs after transplantation need to be better understood for further cell therapy. Purpose: This study investigated the migration effect of EPCs labeled with a multimodal imaging agent in a murine ischemic hindlimb model, using magnetic resonance imaging (MRI) and optical imaging after transplantation. Methods: EPCs derived from mouse bone marrow were labeled with a multimodal imaging agent and were administered through intracardiac delivery to mice with ischemic hindlimbs...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29605018/thrombin-stimulates-increased-plasminogen-activator-inhibitor-1-release-from-liver-compared-to-lung-endothelium
#15
Benjamin R Huebner, Ernest E Moore, Hunter B Moore, Eduardo Gonzalez, Marguerite R Kelher, Angela Sauaia, Anirban Banerjee, Christopher C Silliman
BACKGROUND: Plasminogen activator inhibitor-1 (PAI-1) is a major regulator of the fibrinolytic system, covalently binding to tissue plasminogen activator and blocking its activity. Fibrinolysis shutdown is evident in the majority of severely injured patients in the first 24 h and is thought to be due to PAI-1. The source of this PAI-1 is thought to be predominantly endothelial cells, but there are known organ-specific differences, with higher levels thought to be in the liver. Thrombin generation is also elevated in injured patients and is a potent stimulus for PAI-1 release in human umbilical endothelial cells...
May 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29593715/comparative-analysis-of-the-regulatory-t-cells-dynamics-in-peripheral-blood-in-human-and-porcine-polytrauma
#16
Rafael Serve, Ramona Sturm, Lukas Schimunek, Philipp Störmann, David Heftrig, Michel P J Teuben, Elsie Oppermann, Klemens Horst, Roman Pfeifer, Tim P Simon, Yannik Kalbas, Hans-Christoph Pape, Frank Hildebrand, Ingo Marzi, Borna Relja
Background: Severely injured patients experience substantial immunological stress in the aftermath of traumatic insult, which often results in systemic immune dysregulation. Regulatory T cells (Treg) play a key role in the suppression of the immune response and in the maintenance of immunological homeostasis. Little is known about their presence and dynamics in blood after trauma, and nothing is known about Treg in the porcine polytrauma model. Here, we assessed different subsets of Treg in trauma patients (TP) and compared those to either healthy volunteers (HV) or data from porcine polytrauma...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29589006/pretreatment-with-dihydroquercetin-a-dietary-flavonoid-protected-against-concanavalin-a-induced-immunological-hepatic-injury-in-mice-and-tnf-%C3%AE-actd-induced-apoptosis-in-hepg2-cells
#17
Jiajie Chen, Xu Sun, Tingting Xia, Qiqi Mao, Liang Zhong
We have previously demonstrated the hepatoprotective effect of dihydroquercetin (DHQ) against concanavalin A (Con A)-induced immunological hepatic injury in mice. In this study, we investigated the immunoregulatory effects of DHQ on Con A-induced liver injury in mice. DHQ administration significantly decreased the serum levels of alanine transaminase and aspartate transaminase, effectively prevented liver damage, and increased the survival rate of Con A-treated mice. Immunohistochemistry examination revealed that supplementation with DHQ obviously reduced infiltration of CD4+ and CD8+ T cells in the injured liver tissues...
March 28, 2018: Food & Function
https://www.readbyqxmd.com/read/29569680/successful-non-operative-management-of-blunt-abdominal-trauma-in-highly-selective-cases-a-safe-and-effective-choice
#18
Georgios Theodoros Liagkos, Charalampos Spyropoulos, Gerasimos Tsourouflis, Aris Papadopoulos, Paulos Ioannides, Constantine Vagianos
BACKGROUND: The non-operative management (NOM) of abdominal injuries has gained wide acceptance over the last few decades. The present study evaluated the efficacy of NOM in blunt abdominal trauma (BAT) at a regional Hellenic hospital. METHODS: We analyzed the results of a pre-decided treatment protocol, which was applied to all patients hospitalized for BAT, from 2008 to 2015. The protocol proposed NOM in hemodynamically stable patients with no signs of peritonitis...
March 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29564544/incidence-and-management-of-arterial-injuries-during-pancreatectomy
#19
Dyre Kleive, Mushegh A Sahakyan, Ammar Khan, Bjarte Fosby, Pål-Dag Line, Knut Jørgen Labori
PURPOSE: The incidence of intraoperative arterial injury during pancreatectomy is not well described. This study aims to evaluate the incidence, management, and outcome of arterial injuries during pancreatectomy. METHODS: This is a retrospective study of 1535 consecutive patients undergoing pancreatectomy between 2006 and 2016 at Oslo University Hospital. The type of arterial injury and potential contributing factors were analyzed. Short-term outcomes were compared between patients with arterial injury and patients undergoing a planned arterial resection due to tumor involvement...
March 21, 2018: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/29549558/human-adipose-derived-mesenchymal-stem-cells-promote-recovery-of-injured-hepg2-cell-line-and-show-sign-of-early-hepatogenic-differentiation
#20
Ling Ling Liau, Suzana Makpol, Abdul Ghani Nur Azurah, Kien Hui Chua
Currently, orthotopic liver transplantation is the gold standard therapy for liver failure. However, it is limited by the insufficient organ donor and risk of immune rejection. Stem cell therapy is a promising alternative treatment for liver failure. One of the most ideal sources of stem cells for regenerative medicine is adipose-derived stem cells (ADSCs). In this study, primary ADSCs seeded on cell culture insert were indirectly co-cultured with injured HepG2 to elucidate the role of ADSCs in promoting the recovery of injured HepG2 in non-contact manner...
March 16, 2018: Cytotechnology
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