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https://www.readbyqxmd.com/read/27912738/hepatoprotective-activity-of-lepidium-sativum-seeds-against-d-galactosamine-lipopolysaccharide-induced-hepatotoxicity-in-animal-model
#1
Mohammad Raish, Ajaz Ahmad, Khalid M Alkharfy, Syed Rizwan Ahamad, Kazi Mohsin, Fahad I Al-Jenoobi, Abdullah M Al-Mohizea, Mushtaq Ahmad Ansari
BACKGROUND: Fulminant hepatic failure (FHF) is clinical syndrome with very poor prognosis and high mortality there is urgent need for the development of safe and non-toxic hepatoprotective agents for the adequate management of hepatitis. Hepatoprotective effect of the Lepidium sativum ethanolic extract (LSEE) was assessed by D-galactosamine-induced/lipopolysaccharide (400 mg/kg and 30 μg/kg) liver damage model in rats. METHODS: Hepatoprotective activity of LSEE (150 and 300 mg/kg) and silymarin on D-GalN/LPS induced FHF in rat was assessed using several liver function enzyme parameters...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27893754/cyp26-enzymes-facilitate-second-heart-field-progenitor-addition-and-maintenance-of-ventricular-integrity
#2
Ariel B Rydeen, Joshua S Waxman
Although retinoic acid (RA) teratogenicity has been investigated for decades, the mechanisms underlying RA-induced outflow tract (OFT) malformations are not understood. Here, we show zebrafish embryos deficient for Cyp26a1 and Cyp26c1 enzymes, which promote RA degradation, have OFT defects resulting from two mechanisms: first, a failure of second heart field (SHF) progenitors to join the OFT, instead contributing to the pharyngeal arch arteries (PAAs), and second, a loss of first heart field (FHF) ventricular cardiomyocytes due to disrupted cell polarity and extrusion from the heart tube...
November 2016: PLoS Biology
https://www.readbyqxmd.com/read/27876602/genistein-attenuates-d-galn-induced-liver-fibrosis-chronic-liver-damage-in-rats-by-blocking-the-tgf-%C3%AE-smad-signaling-pathways
#3
Ajaz Ahmad Ganai, Mohammad Husain
BACKGROUND AND AIM: Genistein is a major isoflavonoid abundantly found in soy. Earlier genistein has been reported to possess protective effect against a multitude of disorders including cancer. Previously we demonstrated the protective effects of Genistein in d-Galactosamine (D-GalN) induced fulminant hepatic failure (FHF) in rats. In present study, we evaluated the hepatoprotective activity of Genistein in rat model of chronic liver damage and liver fibrosis. METHODS: Liver fibrosis was induced by intraperitoneal injection of D-GalN (250 mg/kg BW) twice a week for 12 weeks...
November 19, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27861739/afzelin-ameliorates-d-galactosamine-and-lipopolysaccharide-induced-fulminant-hepatic-failure-by-modulating-mitochondrial-quality-control-and-dynamics-150-150
#4
Sang-Bin Lee, Jung-Woo Kang, So-Jin Kim, Jongmin Ahn, Jinwoong Kim, Sun-Mee Lee
BACKGROUND AND PURPOSE: Fulminant hepatic failure (FHF) is a fatal clinical syndrome that results in excessive inflammation and hepatocyte death. Mitochondrial dysfunction is considered to be a possible mechanism of FHF. Afzelin, a flavonol glycoside found in Houttuynia cordata Thunberg, has anti-inflammatory and antioxidant properties. The present study elucidated the cytoprotective mechanisms of afzelin against D-galactosamine (GalN)/lipopolysaccharide (LPS)-induced FHF, particularly focusing on mitochondrial quality control and dynamics...
November 15, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27836788/regression-of-fibrosis-cirrhosis-by-glycine-propionyl-l-carnitine-treatment-in-d-galactosamine-induced-chronic-liver-damage
#5
Ajaz Ahmad Ganai, Ishfaq Ahmad Ganaie, Nishika Verma, Humaira Farooqi
BACKGROUND AND PURPOSE: Liver fibrosis and cirrhosis are leading causes of morbidity and mortality, with majority of preventable cases attributed to excessive alcohol consumption, viral hepatitis, or non-alcoholic fatty liver disease. We previously reported the hepatoprotective effect of Glycine propionyl-l-carnitine (GPLC) against the fulminant hepatic failure (FHF) induced by d-Galactosamine (D-GalN). In this study we evaluated the protective effect of GPLC against D-GalN induced chronic liver damage...
November 9, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27832135/intestinal-dendritic-cells-are-altered-in-number-maturity-and-chemotactic-ability-in-fulminant-hepatic-failure
#6
Mei Liu, Peng Wang, Min Zhao, D Y Liu
Fulminant hepatic failure (FHF) is defined as rapid acute liver injury, often complicated with spontaneous bacterial peritonitis (SBP). The precise onset of FHF with SBP is still unknown, but it is thought that SBP closely correlates with a weakened intestinal barrier. Dendritic cells (DCs) play a crucial role in forming the intestinal immune barrier, therefore the number, maturity and chemotactic ability of intestinal DCs were studied in FHF. Mouse intestinal and spleen DCs were isolated by magnetic-activated cell sorting (MACS) and surface markers of DCs, namely CD11c, CD74, CD83 and CD86, were identified using flow cytometry...
2016: PloS One
https://www.readbyqxmd.com/read/27666389/fhf-independent-conduction-of-action-potentials-along-the-leak-resistant-cerebellar-granule-cell-axon
#7
Katarzyna Dover, Christopher Marra, Sergio Solinas, Marko Popovic, Sathyaa Subramaniyam, Dejan Zecevic, Egidio D'Angelo, Mitchell Goldfarb
Neurons in vertebrate central nervous systems initiate and conduct sodium action potentials in distinct subcellular compartments that differ architecturally and electrically. Here, we report several unanticipated passive and active properties of the cerebellar granule cell's unmyelinated axon. Whereas spike initiation at the axon initial segment relies on sodium channel (Nav)-associated fibroblast growth factor homologous factor (FHF) proteins to delay Nav inactivation, distal axonal Navs show little FHF association or FHF requirement for high-frequency transmission, velocity and waveforms of conducting action potentials...
September 26, 2016: Nature Communications
https://www.readbyqxmd.com/read/27574545/multimodal-brain-monitoring-in-fulminant-hepatic-failure
#8
REVIEW
Fernando Mendes Paschoal, Ricardo Carvalho Nogueira, Karla De Almeida Lins Ronconi, Marcelo de Lima Oliveira, Manoel Jacobsen Teixeira, Edson Bor-Seng-Shu
Acute liver failure, also known as fulminant hepatic failure (FHF), embraces a spectrum of clinical entities characterized by acute liver injury, severe hepatocellular dysfunction, and hepatic encephalopathy. Cerebral edema and intracranial hypertension are common causes of mortality in patients with FHF. The management of patients who present acute liver failure starts with determining the cause and an initial evaluation of prognosis. Regardless of whether or not patients are listed for liver transplantation, they should still be monitored for recovery, death, or transplantation...
August 8, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27559088/rab5-and-its-effector-fhf-contribute-to-neuronal-polarity-through-dynein-dependent-retrieval-of-somatodendritic-proteins-from-the-axon
#9
Xiaoli Guo, Ginny G Farías, Rafael Mattera, Juan S Bonifacino
An open question in cell biology is how the general intracellular transport machinery is adapted to perform specialized functions in polarized cells such as neurons. Here we illustrate this adaptation by elucidating a role for the ubiquitous small GTPase Ras-related protein in brain 5 (Rab5) in neuronal polarity. We show that inactivation or depletion of Rab5 in rat hippocampal neurons abrogates the somatodendritic polarity of the transferrin receptor and several glutamate receptor types, resulting in their appearance in the axon...
September 6, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27495753/fulminant-hepatic-failure-as-a-risk-factor-for-cytomegalovirus-infection-in-children-receiving-preemptive-therapy-after-living-donor-liver-transplantation
#10
Munehiro Furuichi, Takeo Fujiwara, Akinari Fukuda, Mureo Kasahara, Isao Miyairi
BACKGROUND: Cytomegalovirus (CMV) is 1 of the most common causes of infection after solid organ transplantation with symptomatic disease occurring at an incidence of 20-40% without preventative measures. While CMV donor+/recipient- serostatus is well known to be a risk factor, there is little data about other risk factors for CMV infection in the setting of pediatric liver transplantation (LT). We hypothesized that fulminant hepatic failure (FHF) may be a risk factor for CMV infection given anecdotal reports of complications associated with FHF...
August 5, 2016: Transplantation
https://www.readbyqxmd.com/read/27475347/multicomponent-density-functional-theory-embedding-formulation
#11
Tanner Culpitt, Kurt R Brorsen, Michael V Pak, Sharon Hammes-Schiffer
Multicomponent density functional theory (DFT) methods have been developed to treat two types of particles, such as electrons and nuclei, quantum mechanically at the same level. In the nuclear-electronic orbital (NEO) approach, all electrons and select nuclei, typically key protons, are treated quantum mechanically. For multicomponent DFT methods developed within the NEO framework, electron-proton correlation functionals based on explicitly correlated wavefunctions have been designed and used in conjunction with well-established electronic exchange-correlation functionals...
July 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27462279/aliskiren-administration-during-early-postnatal-life-sex-specifically-alleviates-hypertension-programmed-by-maternal-high-fructose-consumption
#12
Chien-Ning Hsu, Kay L H Wu, Wei-Chia Lee, Steve Leu, Julie Y H Chan, You-Lin Tain
UNLABELLED: Key points summary Maternal high-fructose (HF) induces programmed hypertension in adult offspring.Early aliskiren administration prevents HF-induced hypertension in both sexes of adult offspring.HF regulates RAS components in the offspring kidney in a sex-specific manner.HF alters renal transcriptome, with female offspring being more sensitive.Deprogramming strategy to prevent hypertension might be sex-specific. BACKGROUND: Maternal high fructose (HF) intake induced renal programming and hypertension in male adult offspring...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27452443/the-effect-of-17%C3%AE-ethynylestradiol-induced-intrahepatic-cholestasis-of-pregnancy-on-placental-p-glycoprotein-in-mice-implications-in-the-individualized-transplacental-digoxin-treatment-for-fetal-heart-failure
#13
Chuan Wang, Yi Zhang, Yalan Zhan, Chunyan Luo, Yifei Li, Dajian Qiu, Dezhi Mu, Hongyu Duan, Kaiyu Zhou, Yimin Hua
INTRODUCTION: Placental P-glycoprotein (P-gp) plays a significant role in controlling transplacental digoxin transfer rate. Investigations on P-gp regulation in placenta of women with different pregnant pathological states are of great significance to individualized transplacental digoxin treatment for fetal heart failure (FHF). This study aimed to explore the effect of 17α-ethynylestradiol induced intrahepatic cholestasis of pregnancy (ICP) on placental P-gp in mice. METHODS: ICP model in mice was induced by subcutaneous injection of 17α-ethynylestradiol dissolved in propylene glycol once daily from E12...
August 2016: Placenta
https://www.readbyqxmd.com/read/27400137/a-global-analytical-representation-of-the-potential-energy-surface-of-the-fhf-anion
#14
Yann Cornaton, Roberto Marquardt
A global analytical representation of the potential energy hypersurface of the lowest adiabatic electronic state of the FHF(-) anion is derived from ab initio calculations at the coupled cluster level of theory with full single and double and perturbative triple excitations using explicitly correlated atomic basis functions. The new compact function of interatomic distances combines covalent short-range and long-range electrostatic interaction forms and assesses accurately both the lowest reaction channels between the F(-) and HF fragments, with reaction enthalpies to within 1 kJ mol(-1), as well as vibrational terms to within 1...
August 4, 2016: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/27381200/comparison-of-hydrogen-and-gold-bonding-in-xhx-xaux-and-isoelectronic-nghng-ngaung-x-halogen-ng-noble-gas
#15
Sławomir J Grabowski, Jesus M Ugalde, Diego M Andrada, Gernot Frenking
Quantum chemical calculations at the MP2/aug-cc-pVTZ and CCSD(T)/aug-cc-pVTZ levels have been carried out for the title compounds. The electronic structures were analyzed with a variety of charge and energy partitioning methods. All molecules possess linear equilibrium structures with D∞h symmetry. The total bond dissociation energies (BDEs) of the strongly bonded halogen anions [XHX](-) and [XAuX](-) decrease from [FHF](-) to [IHI](-) and from [FAuF](-) to [IAuI](-) . The BDEs of the noble gas compounds [NgHNg](+) and [NgAuNg](+) become larger for the heavier atoms...
August 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27349328/inverse-ubbelohde-effect-in-the-short-hydrogen-bond-of-photosystem-ii-relation-between-h-d-isotope-effect-and-symmetry-in-potential-energy-profile
#16
Yusuke Kanematsu, Masanori Tachikawa, Yu Takano
The short hydrogen bond between tyrosine Yz and D1-His190 of photosystem II (PSII) was investigated using multicomponent quantum mechanics, where the quantum fluctuation of a hydrogen nucleus was incorporated into electronic structure calculation. Our computation demonstrated that the deuteration for hydrogen in the short hydrogen bond of PSII led to the reduction of the O…N distance. It indicated an inverse Ubbelohde effect typically recognized in strong and symmetric hydrogen-bonding clusters such as FHF(-) and H3O2-...
September 5, 2016: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/27347815/interactions-between-sf4-and-fluoride-a-crystallographic-study-of-solvolysis-products-of-sf4%C3%A2-nitrogen-base-adducts-by-hf
#17
James T Goettel, Nathan Kostiuk, Michael Gerken
Adducts between SF4 and a nitrogen base are easily solvolyzed by HF, yielding the protonated nitrogen base and fluoride. Salts resulting from the solvolysis of SF4·NC5H5, SF4·NC5H4(CH3), SF4·NC5H3(CH3)2, and SF4·NC5H4N(CH3)2 have been studied by Raman spectroscopy and X-ray crystallography. Crystal structures were obtained for pyridinium salts [HNC5H5(+)]F(-)·SF4 and [HNC5H5(+)]F(-)[HF]·2SF4, the 4-methylpyridinium salt [HNC5H4(CH3)(+)]F(-)·SF4, the 2,6-methylpyridinium salt [HNC5H3(CH3)2(+)]2[SF5(-)]F(-)·SF4, and 4-(dimethylamino)pyridinium salts [HNC5H4N(CH3)2(+)]2[SF5(-)]F(-)·CH2Cl2 and [NC5H4N(CH3)2(+)][HF2(-)]·2SF4...
July 18, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27262167/current-view-on-regulation-of-voltage-gated-sodium-channels-by-calcium-and-auxiliary-proteins
#18
REVIEW
Geoffrey S Pitt, Seok-Yong Lee
In cardiac and skeletal myocytes, and in most neurons, the opening of voltage-gated Na(+) channels (NaV channels) triggers action potentials, a process that is regulated via the interactions of the channels' intercellular C-termini with auxiliary proteins and/or Ca(2+) . The molecular and structural details for how Ca(2+) and/or auxiliary proteins modulate NaV channel function, however, have eluded a concise mechanistic explanation and details have been shrouded for the last decade behind controversy about whether Ca(2+) acts directly upon the NaV channel or through interacting proteins, such as the Ca(2+) binding protein calmodulin (CaM)...
September 2016: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/27246624/fgf13-modulates-the-gating-properties-of-the-cardiac-sodium-channel-nav1-5-in-an-isoform-specific-manner
#19
Jing Yang, Zhihua Wang, Daniel S Sinden, Xiangchong Wang, Bin Shan, Xiao Yu, Hailin Zhang, Geoffrey S Pitt, Chuan Wang
FGF13 (FHF2), the major fibroblast growth factor homologous factor (FHF) in rodent heart, directly binds to the C-terminus of the main cardiac sodium channel, NaV1.5. Knockdown of FGF13 in cardiomyocytes induces slowed ventricular conduction by altering NaV1.5 function. FGF13 has five splice variants, each of which possess the same core region and C terminus but differing in their respective N termini. Whether and how these alternatively spliced N termini impart isoform-specific regulation of NaV1.5, however, has not been reported...
September 2, 2016: Channels
https://www.readbyqxmd.com/read/27194381/efficacy-of-fluidized-bed-bioartificial-liver-in-treating-fulminant-hepatic-failure-in-pigs-a-metabolomics-study
#20
Pengcheng Zhou, Li Shao, Lifu Zhao, Guoliang Lv, Xiaoping Pan, Anye Zhang, Jianzhou Li, Ning Zhou, Deying Chen, Lanjuan Li
Bioartificial livers may act as a promising therapy for fulminant hepatic failure (FHF) with better accessibility and less injury compared to orthotopic liver transplantation. This study aims to evaluate the efficacy and safety of a fluidized bed bioartificial liver (FBBAL) and to explore its therapeutic mechanisms based on metabolomics. FHF was induced by D-galactosamine. Eighteen hours later, pigs were treated with an FBBAL containing encapsulated primary porcine hepatocytes (B group), with a sham FBBAL (containing cell-free capsules, S group) or with only intensive care (C group) for 6 h...
2016: Scientific Reports
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