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https://www.readbyqxmd.com/read/29145424/levosimendan-protects-human-hepatocytes-from-ischemia-reperfusion-injury
#1
Stefanie N Brunner, Nicolai V Bogert, Andreas A Schnitzbauer, Eva Juengel, Anton Moritz, Isabella Werner, Angela Kornberger, Andres Beiras-Fernandez
BACKGROUND: Ischemia-reperfusion injury (IRI) is a major challenge in liver transplantation. The mitochondrial pathway plays a pivotal role in hepatic IRI. Levosimendan, a calcium channel sensitizer, was shown to attenuate apoptosis after IRI in animal livers. The aim of this study was to investigate the effect of levosimendan on apoptosis in human hepatocytes. METHODS: Primary human hepatocytes were either exposed to hypoxia or cultured under normoxic conditions...
2017: PloS One
https://www.readbyqxmd.com/read/29141035/influence-of-boron-supplementation-on-performance-immunity-and-antioxidant-status-of-lambs-fed-diets-with-or-without-adequate-level-of-calcium
#2
T Vijay Bhasker, N K S Gowda, D T Pal, S Karthik Bhat, P Krishnamoorthy, S Mondal, A K Pattanaik, A K Verma
Little is known about biological significance of effects of dietary Boron (B) and Calcium (Ca) interaction on health and production of farm animals. This is a preliminary investigation to evaluate the effects of B supplementation in lambs fed diets with (normal) or without adequate (low) levels of Ca. Twenty-four crossbred ram lambs were randomly distributed into four groups with six animals each in a 2x2 factorial design namely, normal-Ca diet (NCa) and low-Ca diet (LCa) fed without or with 40 ppm B (NCaB-40 and LCaB-40)...
2017: PloS One
https://www.readbyqxmd.com/read/29139246/-systemic-evaluation-and-meta-analysis-of-xianling-gubao-capsule-in-treatment-of-primary-osteoporosis-in-randomized-controlled-trials
#3
Gui-Qian Wang, Xing Liao, Yi-Li Zhang, Yan-Ming Xie
To evaluate the efficacy and safety of Xianling Gubao capsule in the treatment of osteoporosis (OP). Eight Chinese and English databases were retrieved (from establishment to February 2017), and clinical trials were screened according to the preset inclusion criteria and exclusion criteria. Then risk assessment tools were used for quality evaluation of the studies, and data extraction and analysis were conducted by using RevMan 5.3 software for Meta-analysis. A total of 1 895 articles were retrieved, and finally 54 studies were included...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29130236/-occurrence-diagnosis-and-treatment-of-de-novo-gastrointestinal-malignancies-after-organ-transplantation
#4
Linhua Ji, Gang Zhao
With the continuous use of immunosuppressive agents routinely, the long-term survival rate of organ transplant recipients has been incessantly improved. However, the risk of de novo malignancies is also increasing, which has become the second cause of death after organ transplantation. De novo gastrointestinal malignancies are common after liver or kidney transplantation, mostly with advanced stage when diagnosed and poor prognosis. There is a significant trend in the development of de novo malignancies in transplant recipients, which is probably related to factors, including direct or indirect effects of immunosuppressive agents, precancerosis and survival time of transplanted grafts and recipients...
October 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29120705/effects-of-waterborne-cadmium-on-metabolic-rate-oxidative-stress-and-ion-regulation-in-the-freshwater-fish-inanga-galaxias-maculatus
#5
Nicole K McRae, Sally Gaw, Chris N Glover
The freshwater fish Galaxias maculatus (inanga) is a widespread Southern hemisphere species, but despite its habitation of lowland near-coastal waters with a high potential for cadmium contamination, nothing is known regarding its sensitivity to this toxic trace metal. Acute (96h) exposures were therefore performed to determine sublethal responses of inanga to waterborne cadmium at a regulatory trigger value (nominally 0.2μgL(-1); measured 1μgL(-1)), an environmental level (measured at 2.5μgL(-1)), and an effect level (measured at 10μgL(-1))...
October 31, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29114148/the-enzymes-and-electrolytes-profiles-in-hydatid-cyst-fluid-of-naturally-infected-iranian-domestic-ruminants
#6
Mohammad Yakhchali, Siamak Asri-Rezaie, Saeid Samimirad, Hadi Rezaie
Cystic echinoccoccosis is a zoonotic and prevalent disease which causes health problems and economic looses worldwide. The biochemical components of hydatid cyst fluid (HCF) have important role in metabolism and growth of unilocular hydatid cyst. The aim of the current study was to determine HCF level of enzymes and electrolytes profiles in naturally infected Iranian domestic ruminants. The livers and lungs infected with hydatid cysts were collected and HCF was aspirated from a total of 100 cysts obtained from livers (50 cysts) and lungs (50 cysts) of slaughtered domestic ruminants...
December 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/29112932/anti-atherosclerotic-effect-of-longxuetongluo-capsule-in-high-cholesterol-diet-induced-atherosclerosis-model-rats
#7
J M Zhou, H M Wang, Y Z Lv, Z Z Wang, W Xiao
Chinese dragon's blood, the red resin of Dracaena cochinchinensis, one of the famous traditional medicines, has been used to promote blood circulation, disperse blood stasis, stop bleeding, relieve pain and muscle regeneration for thousands of years. The aims of this study were to evaluate the anti-atherosclerotic effect of Longxuetongluo Capsule (LTC), which made by total phenolic compounds of Chinese dragon's blood, in high cholesterol diet (HCD)-induced atherosclerosis model rats and explore the possible mechanism...
November 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29110180/correlation-between-the-molecular-effects-of-mutations-at-the-dimer-interface-of-alanine-glyoxylate-aminotransferase-leading-to-primary-hyperoxaluria-type-i-and-the-cellular-response-to-vitamin-b6
#8
Mirco Dindo, Elisa Oppici, Daniele Dell'Orco, Rosa Montone, Barbara Cellini
Primary hyperoxaluria type I (PH1) is a rare disease caused by the deficit of liver alanine-glyoxylate aminotransferase (AGT). AGT prevents oxalate formation by converting peroxisomal glyoxylate to glycine. When the enzyme is deficient, progressive calcium oxalate stones deposit first in the urinary tract and then at the systemic level. Pyridoxal 5'-phosphate (PLP), the AGT coenzyme, exerts a chaperone role by promoting dimerization, as demonstrated by studies at protein and cellular level. Thus, variants showing a destabilized dimeric structure should, in principle, be responsive to vitamin B6, a precursor of PLP...
November 6, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29102149/systemic-histone-release-disrupts-plasmalemma-and-contributes-to-necrosis-in-acute-pancreatitis
#9
Peter Szatmary, Tingting Liu, Simon T Abrams, Svetlana Voronina, Li Wen, Michael Chvanov, Wei Huang, Guozheng Wang, David N Criddle, Alexey V Tepikin, Cheng-Hock Toh, Robert Sutton
BACKGROUND: Clinical and experimental acute pancreatitis feature histone release within the pancreas from innate immune cells and acinar cell necrosis. In this study, we aimed to detail the source of circulating histones and assess their role in the pathogenesis of acute pancreatitis. METHODS: Circulating nucleosomes were measured in patient plasma, taken within 24 and 48 h of onset of acute pancreatitis and correlated with clinical outcomes. Using caerulein hyperstimulation, circulating histones were measured in portal, systemic venous and systemic arterial circulation in mice, and the effects of systemic administration of histones in this model were assessed...
October 7, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29101656/impact-of-enteric-health-and-mucosal-permeability-on-skeletal-health-and-lameness-in-poultry
#10
L R Bielke, B M Hargis, J D Latorre
Intestinal barrier leakage and/or altered gut microbial composition has been shown to markedly impact both osteoblast and osteoclast activities, systemically through circulation of gut immune cells and cytokines and locally by causing inflammation of extraintestinal organs such as the liver and bone marrow. Mild cases of heightened intestinal inflammation can cause bone loss in male mice in the absence of any overt nutritional deficiencies or weight loss, which has also been shown in chickens that have been infected with Salmonella...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29101365/biomineral-nano-theranostic-agent-for-magnetic-resonance-image-guided-augmented-radiofrequency-ablation-of-liver-tumor
#11
Anusha Ashokan, Vijay Harish Somasundaram, Genekehal Siddaramana Gowd, Ida M Anna, Giridharan L Malarvizhi, Badrinathan Sridharan, Rupal B Jobanputra, Reshmi Peethambaran, A K K Unni, Shantikumar Nair, Manzoor Koyakutty
Theranostic nanoparticles based on biocompatible mineral compositions can significantly improve the translational potential of image guided cancer nano-therapy. Here, we report development of a single-phase calcium phosphate biomineral nanoparticle (nCP) with dual-mode magnetic resonance contrast (T1-T2) together with radiofrequency (RF) mediated thermal response suitable for image-guided RF ablation of cancer. The nanoparticles (NP) are engineered to provide dual MR contrast by an optimized doping concentration (4...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29079454/the-adenosine-a2a-receptor-agonist-t1-11-ameliorates-neurovisceral-symptoms-and-extends-the-lifespan-of-a-mouse-model-of-niemann-pick-type-c-disease
#12
Antonella Ferrante, Antonella Pezzola, Andrea Matteucci, Antonella Di Biase, Lucilla Attorri, Monica Armida, Alberto Martire, Yijuang Chern, Patrizia Popoli
Niemann-Pick C is a fatal neurovisceral disorder caused, in 95% of cases, by mutation of NPC1 gene. Therapeutic options are extremely limited and new "druggable" targets are highly warranted. We previously demonstrated that the stimulation of the adenosine A2A receptor (A2AR) normalized the pathological phenotype of cellular models of NPC1. Since the validation of A2ARs as a therapeutic target for NPC1 can be obtained only conducting studies in in vivo models of the disease, in the present paper, the effects of two agonists of A2ARs were evaluated in the mouse model Balb/c Npc1(nih), hereafter indicated as NPC1-/-...
October 25, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29077799/the-three-d-s-of-transcription-activation-by-glucagon-direct-delayed-and-dynamic
#13
Ido Goldstein, Gordon L Hager
Upon lowered blood glucose occurring during fasting, glucagon is secreted from pancreatic islets, exerting various metabolic effects to normalize glucose levels. A significant portion of these effects are mediated by glucagon-activated transcription factors (TFs) in liver. Glucagon directly activates several TFs via immediate cAMP- and calcium-dependent signaling events. Among these TFs, cAMP responsive element binding protein (CREB) is a major factor. CREB recruits histone modifying enzymes and cooperates with other TFs on the chromatin template to increase the rate of gene transcription...
October 25, 2017: Endocrinology
https://www.readbyqxmd.com/read/29074825/-update-on-recent-progress-in-vitamin-d-research-vitamin-d-receptor-and-the-nuclear-receptor-superfamily
#14
Makoto Makishima
The vitamin D receptor(VDR)is a ligand-dependent transcription factor of the nuclear receptor superfamily. VDR belongs to the NR1I subfamily along with other nuclear receptors involved in xenobiotic metabolism, such as pregnane X receptor. The oxysterol receptors liver X receptors α/β and the bile acid receptor farnesoid X receptor belong to the NR1H subfamily, which are closely related to the NR1I subfamily. NR1I and NR1H nuclear receptors form heterodimers with retinoid X receptor. The active form of vitamin D, 1α,25-dihydroxyvitamin D3[1,25(OH)2D3], acts as a physiological VDR ligand, and regulates various physiological processes, including calcium and bone metabolism, cellular growth and differentiation, immunity, and cardiovascular function...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/29071511/folding-defects-leading-to-primary-hyperoxaluria
#15
Elisa Oppici, Mirco Dindo, Carolina Conter, Carla Borri Voltattorni, Barbara Cellini
Protein misfolding is becoming one of the main mechanisms underlying inherited enzymatic deficits. This review is focused on primary hyperoxalurias, a group of disorders of glyoxylate detoxification associated with massive calcium oxalate deposition mainly in the kidneys. The most common and severe form, primary hyperoxaluria Type I, is due to the deficit of liver peroxisomal alanine/glyoxylate aminotransferase (AGT). Various studies performed in the last decade clearly evidence that many pathogenic missense mutations prevent the AGT correct folding, leading to various downstream effects including aggregation, increased degradation or mistargeting to mitochondria...
October 26, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/29055401/how-hepatitis-b-virus-causes-cirrhosis-and-liver-cancer
#16
Yanchao Zhou, Yulin Wan, Zi-Wei Ye, Zhumei He, Qiuyun Liu, Yunfan Shi
Hepatitis B virus is a major pathogen infecting the liver, causing high morbidity and mortality worldwide, particularly in developing countries. The mechanism underlying progression from infections of Hepatitis B virus to cirrhosis and liver cancer is not fully determined. Here we propose that the HBV X protein traps protons and Cl(-), and induces the expression of collagen in the liver, which forms potent hydrogen bonds with trapped protons. The presence of collagen in the liver marks the progression to fibrosis...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29046367/pkc%C3%AE-silencing-alleviates-saturated-fatty-acid-induced-er-stress%C3%A2-by-enhancing-serca-activity
#17
Shujie Lai, Yan Li, Yi Kuang, Hongli Cui, Yang Yang, Wenjing Sun, Kaijun Liu, Dongfeng Chen, Qixian Yan, Liangzhi Wen
Aim : Protein Kinase C δ (PKCδ) plays an important role in non-alcoholic fatty liver disease (NAFLD), however the mechanism remains unknown. This study explored the role of PKCδ in NAFLD development and investigated the relationships between PKCδ, calcium homeostasis and endoplasmic reticulum stress (ERS). Methods : Hepatic steatosis cell model was induced by palmitic acid (PA) in L02 cells. Lipid accretion was evaluated using Oil Red O staining and a triglyceride detection kit. PKCδ was down-regulated by siRNA...
October 18, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29035092/vitamin-d-supplementation-and-non-alcoholic-fatty-liver-disease-a-critical-and-systematic-review-of-clinical-trials
#18
Nasrin Sharifi, Reza Amani
Previous observational studies have found a relationship between vitamin D deficiency and non-alcoholic fatty liver disease (NAFLD). However, this type of study could not show the causal relationship between these two conditions. Therefore, we systematically and critically reviewed the available clinical trials to elucidate such relationship. We searched databases such as Medline, Scopus and Cochrane to identify the clinical trials that assessed the effects of vitamin D supplementation in adults with NAFLD...
October 16, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29032086/two-trypsin-isoforms-from-albacore-tuna-thunnus-alalunga-liver-purification-and-physicochemical-and-biochemical-characterization
#19
Sappasith Klomklao, Soottawat Benjakul
Two trypsins (A and B) from the liver of albacore tuna (Thunnus alalunga) were purified to homogeneity using a series of column chromatographies including Sephacryl S-200, Sephadex G-50 and Diethylaminoethyl-cellulose. Purity was increased to 80.35- and 101.23-fold with approximately 3.1 and 19.2% yield for trypsins A and B, respectively. The molecular weights of trypsins A and B were estimated to be 21 and 24kDa, respectively, by SDS-PAGE and size exclusion chromatography. Both trypsins showed only one band on native-PAGE...
October 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29031978/monitoring-the-phase-behavior-of-supersaturated-solutions-of-poorly-water-soluble-drugs-using-fluorescence-techniques
#20
Francesco Tres, Stephen D Hall, Michael A Mohutsky, Lynne S Taylor
Phase transformations of poorly water-soluble drugs, in low concentration, supersaturated aqueous solutions are of considerable interest. Herein, fluorescence lifetime and steady-state fluorescence spectroscopy were employed to investigate the fluorescence properties of the autofluorescent compound, felodipine (a 1,4-dihydropyridine calcium channel blocker), when present as free drug in solution, drug-rich aggregates and crystals. Measurements were also performed in the absence and presence of liver microsomes...
October 11, 2017: Journal of Pharmaceutical Sciences
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