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https://www.readbyqxmd.com/read/28231326/expression-of-glyoxalase-i-is-reduced-in-cirrhotic-livers-a-possible-mechanism-in-the-development-of-cirrhosis
#1
Marcus Hollenbach, Antje Thonig, Sabine Pohl, Cristina Ripoll, Maurice Michel, Alexander Zipprich
BACKGROUND: High concentrations of methylglyoxal (MGO) cause cytotoxiticy via formation of advanced glycation endproducts (AGEs) and inflammation. MGO is detoxificated enzymatically by glyoxalase-I (Glo-I). The aim of this study was to analyze the role of Glo-I during the development of cirrhosis. METHODS: In primary hepatocytes, hepatic stellate cells (pHSC) and sinusoidal endothelial cells (pLSEC) from rats with early (CCl4 8wk) and advanced cirrhosis (CCl4 12wk) expression and activity of Glo-I were determined and compared to control...
2017: PloS One
https://www.readbyqxmd.com/read/28229939/chenopodium-bonus-henricus-l-a-source-of-hepatoprotective-flavonoids
#2
Zlatina Kokanova-Nedialkova, Paraskev Nedialkov, Magdalena Kondeva-Burdina, Rumyana Simeonova, Virginia Tzankova, Denitsa Aluani
Three new flavonoid glycosides (7-9) named patuletin-3-O-(5″'-О-Е-feruloyl)-β-d-apiofuranosyl(1→2)[β-d-glucopyranosyl (1→6)]-β-d-glucopyranoside (7), spinacetin-3-O-(5″'-О-Е-feruloyl)-β-d-apiofuranosyl (1→2)[β-d-glucopyranosyl(1→6)]-β-d-glucopyranoside (8) and 6-methoxykaempferol-3-O-(5″'-О-Е-feruloyl)-β-d-apiofuranosyl(1→2)[β-d-glucopyranosyl (1→6)]-β-d-glucopyranoside (9) together with six known flavonoid glycosides of patuletin, spinacetin and 6-methoxykaempferol (1-6) were isolated from the aerial parts of C...
February 14, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28229921/protective-effect-of-a-polysaccharide-from-anoectochilus-roxburghii-against-carbon-tetrachloride-induced-acute-liver-injury-in-mice
#3
Biyu Zeng, Minghua Su, Qingxi Chen, Qiang Chang, Wei Wang, Huihua Li
ETHNOPHARMACOLOGICAL RELEVANCE: Anoectochilus roxburghii (Wall.) Lindl. is traditionally used for the treatment of various types of chronic and acute hepatitis in China. Considering that Anoectochilus roxburghii polysaccharide (ARPT) is the main constituent of Anoectochilus roxburghii, the present study was designed to investigate the hepatoprotective effect of ARPT and its possible mechanism in carbon tetrachloride (CCl4)-induced mice. MATERIAL AND METHODS: The hepatoprotective activity of ARPT (150, 300 and 500 mg/kg) were investigated on CCl4-induced acute liver damage in mice...
February 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28224331/the-interaction-of-ccl4-with-ng-ng%C3%A2-%C3%A2-he-ne-ar-o2-d2o-and-nd3-rovibrational-energies-spectroscopic-constants-and-theoretical-calculations
#4
Rhuiago M de Oliveira, Luiz F Roncaratti, Luiz Guilherme M de Macedo, Ricardo Gargano
This investigation generated rovibrational energies and spectroscopic constants for systems of CCl4 with Ng (Ng = He, Ne, Ar), O2, D2O and ND3 from scattering experimental data, and the results presented are of interest for microwave spectroscopy studies of small halogenated molecules. The rovibrational spectra were obtained through two different approaches (Dunham and DVR) within the improved Lennard Jones (ILJ) model. Spectra were also generated within ordinary Lennard Jones and deviations suggest that the ILJ model should be preferred due to interactions beyond dispersion forces presented in these systems...
March 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28224232/effects-of-traumeel-tr14-on-recovery-and-inflammatory-immune-response-after-repeated-bouts-of-exercise-a-double-blind-rct
#5
Kerstin Muders, Christian Pilat, Vanessa Deuster, Torsten Frech, Karsten Krüger, Jörn Pons-Kühnemann, Frank-Christoph Mooren
PURPOSE: The purpose of this double-blind, randomized, placebo-controlled clinical trial was to investigate the effects of the natural combination medicine Traumeel (Tr14) consisting of 14 diluted biological and mineral components on the inflammatory immune response and recovery up to 72 h after repetitive bouts of bicycle tests. METHODS: Antigen-stimulated IL-1ra and IL-6 were defined as primary outcome measures. Moreover, various immunological and serum muscle damage markers were investigated...
February 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28222401/combination-of-sitagliptin-and-silymarin-ameliorates-liver-fibrosis-induced-by-carbon-tetrachloride-in-rats
#6
Samia Salem Sokar, Magda El-Sayed El-Sayad, Mai El-Sayed Ghoneim, Abdelhadi Mohamed Shebl
Liver fibrosis is a common pathological condition that occurs in most conditions associated with chronic liver injury. Silymarin is a herbal product widely used for its hepatoprotective effect. Sitagliptin, a dipeptidyl peptidase-4 inhibitor (DPP4-I), is clinically used as an oral antidiabetic agent. This study was designed to investigate the effects of Sitagliptin, Silymarin, and their combination on established liver fibrosis in carbon tetrachloride (CCl4) rat model. Male albino rats received intraperitoneal injections of CCl4 three times a week for 7 weeks, as well as daily oral treatments of Sitagliptin (100mg/kg) or Silymarin (100mg/kg) or their combination during the 7 weeks of intoxication...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28219798/integrative-hepatoprotective-efficacy-comparison-of-raw-and-vinegar-baked-radix-bupleuri-using-nuclear-magnetic-resonance-based-metabolomics
#7
Jie Xing, Hui-Min Sun, Jin-Ping Jia, Xue-Mei Qin, Zhen-Yu Li
Radix Bupleuri (RB), with a Chinese name Chaihu, is one of the most popular Traditional Chinese herbal drug. It can be baked with vinegar to afford vinegar-baked Radix Bupleuri (VBRB), which is used in Traditional Chinese Medicine (TCM) for liver diseases treatment. In the present study, nuclear magnetic resonance-based metabolomic approach was used to compare the liver protective effect of RB and two types of VBRBs, which were prepared by two kinds of vinegar. The contents of 14 metabolites in the liver of carbon tetrachloride (CCl4) treated mice were significantly altered in comparison with control group, and VBRB prepared by Shanxi vinegar showed best effect as revealed by the amount and regulatory degree of the perturbed metabolites...
February 7, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28218851/temperature-drift-of-conformational-equilibria-of-butyl-alcohols-studied-by-near-infrared-spectroscopy-and-fully-anharmonic-dft
#8
Justyna Grabska, Krzysztof Bernard Beć, Yukihiro Ozaki, Christian W Huck
Conformational isomerism of aliphatic alcohols with respect to the internal rotation of C-O(H) group and its impact on near-infrared (NIR) spectra has been known in the literature. However, no attempt has ever been made to investigate systematically whether and how the conformational flexibility of the aliphatic chain determines the observed NIR data of aliphatic alcohols. In the present study NIR spectra of four kinds of butyl alcohols, 1-butanol, 2-butanol, iso-butanol and tert-butanol, were investigated in diluted (0...
February 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28218781/study-on-the-effects-of-blueberry-treatment-on-histone-acetylation-modification-of-ccl4-induced-liver-disease-in-rats
#9
W Zhan, X Liao, T Tian, L Yu, X Liu, B Li, J Liu, B Han, R J Xie, Q H Ji, Q Yang
The objective of this study was to investigate the effects of blueberry treatment on histone acetylation modification of carbon tetrachloride (CCl4)-induced liver disease in rats. Laboratory rats were randomly divided into control, hepatic fibrosis, blueberry treatment, blueberry intervention, and natural recovery groups. Rats in the model groups were treated with CCl4 administered subcutaneously at 4- and 8-week intervals, and then executed. Both the 4- and 8-week treatment groups were treated with blueberry juice for 8 weeks, and then executed after 12 and 16 weeks, respectively...
February 16, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28214686/enhanced-anticancer-effect-of-combretastatin-a-4-phosphate-when-combined-with-vincristine-in-the-treatment-of-hepatocellular-carcinoma
#10
Esam M Aboubakr, Ashraf Taye, Omar M Aly, A M Gamal-Eldeen, Mohamed A El-Moselhy
Tubulin targeting agents have received considerable interest as a potential tumor-selective vascular disrupting agents, which represent another avenue for cancer growing therapeutic opportunities. Hence, the present study was conducted to investigate the anti-tumor activity of Combretastatin A-4 phosphate (CA4-P) and vincristine against hepatocellular carcinoma in rats, by individual administration and in combination. In vitro study was conducted using human hepatocellular carcinoma cell lines, showed that CA4-P and vincristine have a potent cell cytotoxic and tubulin inhibitory effect...
February 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28213291/hepatoprotective-effect-of-2-o-galloylhyperin-against-oxidative-stress-induced-liver-damage-through-induction-of-nrf2-are-mediated-antioxidant-pathway
#11
Peng Wang, Yi-Meng Gao, Xing Sun, Na Guo, Ji Li, Wei Wang, Li-Ping Yao, Yu-Jie Fu
2'-O-galloylhyperin (2'-O-GH), an active compound isolated from Pyrola calliantha, possesses remarkable antioxidant activity. The aims of this study were to investigate the hepatoprotective effect of 2'-O-GH against oxidative stress and elucidate the underlying mechanistic signaling pathways in HepG2 cells as well as in an animal model. Results showed that 2'-O-GH significantly inhibited hydrogen peroxide (H2O2)-induced HepG2 cell death in a dose dependent manner. The mitogen-activated protein kinase activation, ROS production, mitochondrial membrane potential, intracellular calcium level and subsequent apoptotic protein activation in H2O2-stimulated HepG2 cells were remarkably inhibited by 2'-O-GH...
February 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28210256/transcriptomic-analysis-of-the-innate-antiviral-immune-response-in-porcine-intestinal-epithelial-cells-influence-of-immunobiotic-lactobacilli
#12
Leonardo Albarracin, Hisakazu Kobayashi, Hikaru Iida, Nana Sato, Tomonori Nochi, Hisashi Aso, Susana Salva, Susana Alvarez, Haruki Kitazawa, Julio Villena
Lactobacillus rhamnosus CRL1505 and Lactobacillus plantarum CRL1506 are immunobiotic strains able to increase protection against viral intestinal infections as demonstrated in animal models and humans. To gain insight into the host-immunobiotic interaction, the transcriptomic response of porcine intestinal epithelial (PIE) cells to the challenge with viral molecular associated pattern poly(I:C) and the changes in the transcriptomic profile induced by the immunobiotics strains CRL1505 and CRL1506 were investigated in this work...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28202906/bar502-a-dual-fxr-and-gpbar1-agonist-promotes-browning-of-white-adipose-tissue-and-reverses-liver-steatosis-and-fibrosis
#13
Adriana Carino, Sabrina Cipriani, Silvia Marchianò, Michele Biagioli, Chiara Santorelli, Annibale Donini, Angela Zampella, Maria Chiara Monti, Stefano Fiorucci
Non-alcoholic steatohepatitis (NASH) is a highly prevalent chronic liver disease. Here, we have investigated whether BAR502, a non-bile acid, steroidal dual ligand for FXR and GPBAR1, reverses steato-hepatitis in mice fed a high fat diet (HFD) and fructose. After 9 week, mice on HFD gained ≈30% of b.w (P < 0.01 versus naïve) and were insulin resistant. These overweighting and insulin resistant mice were randomized to receive HFD or HFD in combination with BAR502. After 18 weeks, HFD mice developed NASH like features with severe steato-hepatitis and fibrosis, increased hepatic content of triacylglycerol and cholesterol and expression of SREPB1c, FAS, ApoC2, PPARα and γ, α-SMA, α1 collagen and MCP1 mRNAs...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28196290/curcumin-protects-against-intestinal-origin-endotoxemia-in-rat-liver-cirrhosis-by-targeting-pcsk9
#14
Yu Cai, Di Lu, Yanting Zou, Chaohui Zhou, Hongchun Liu, Chuantao Tu, Feng Li, Lili Liu, Shuncai Zhang
Intestinal origin endotoxemia always occurs in severe liver injury. The aim of the current study was to test antiendotoxemia effect of curcumin on tetrachloride (CCl4 )-induced liver cirrhosis rats, and to elucidate the underlying molecular mechanism. Rat cirrhosis models were constructed with CCl4 subcutaneous injections with curcumin (200 mg/kg/d) administered via gavages for 12 wk until the rats were sacrificed. We found that the administration of curcumin improved the physiological condition pertaining to activity index and temperature, and ameliorated the liver injury in CCl4 -induced cirrhosis rats...
February 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28194423/effects-of-liver-fibrosis-progression-on-tissue-relaxation-times-in-different-mouse-models-assessed-by-ultrahigh-field-magnetic-resonance-imaging
#15
Andreas Müller, Katrin Hochrath, Jonas Stroeder, Kanishka Hittatiya, Günther Schneider, Frank Lammert, Arno Buecker, Peter Fries
Recently, clinical studies demonstrated that magnetic resonance relaxometry with determination of relaxation times T1 and T2(⁎) may aid in staging and management of liver fibrosis in patients suffering from viral hepatitis and steatohepatitis. In the present study we investigated T1 and T2(⁎) in different models of liver fibrosis to compare alternate pathophysiologies in their effects on relaxation times and to further develop noninvasive quantification methods of liver fibrosis. MRI was performed with a fast spin echo sequence for measurement of T1 and a multigradient echo sequence for determination of T2(⁎)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28193696/astrocytic-orosomucoid-2-modulates-microglial-activation-and-neuroinflammation
#16
Myungjin Jo, Jong-Heon Kim, Gyunjee Song, Minchul Seo, Eun Mi Hwang, Kyoungho Suk
Orosomucoid (ORM) is an acute-phase protein that belongs to the immunocalin subfamily, a group of small-molecule binding proteins with immunomodulatory functions. Little is known about the role of ORM proteins in the central nervous system. The aim of the present study was to investigate the brain expression of ORM and its role in neuroinflammation. Expression of Orm2, but not Orm1 or Orm3, was highly induced in the mouse brain after systemic injection of lipopolysaccharide (LPS). Plasma levels of ORM2 were also significantly higher in patients with cognitive impairment than in normal subjects...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28193525/caffeic-acid-phenethyl-ester-attenuates-liver-fibrosis-via-inhibition-of-tgf-%C3%AE-1-smad3-pathway-and-induction-of-autophagy-pathway
#17
Ning Yang, Shuangsuo Dang, Juanjuan Shi, Fengping Wu, Mei Li, Xin Zhang, Yaping Li, Xiaoli Jia, Song Zhai
Caffeic acid phenethyl ester (CAPE) has been reported to possess the hepatoprotective effect. This study was to investigate the mechanism underlying CAPE against liver fibrosis in a liver fibrosis model induced by toxic carbon tetrachloride (CCl4) in male Sprague-Dawley rats and in vitro in CAPE (5 μM, 10 μM, 15 μM) treated hepatic stellate cells (HSC-T6). We found that CAPE treatment remarkably attenuated CCl4-induced liver fibrosis by blocking the activation of HSCs as determined by the expression alternation of transforming growth factor (TGF)-β1, phosphorylated Smad3 (p-Smad3), collage I, α-smooth muscle actin (α-SMA), matrix metalloproteinases (MMPs) 2, tissue inhibitor of matrix metalloproteinases (TIMPs) 1...
February 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28193000/compound-specific-chlorine-isotope-analysis-of-tetrachloromethane-and-trichloromethane-by-gc-irms-vs-gc-qms-method-development-and-evaluation-of-precision-and-trueness
#18
Benjamin Heckel, Diana Rodríguez-Fernández, Clara Torrentó, Armin H Meyer, Jordi Palau, Cristina Domenech, Mònica Rosell, Albert Soler, Daniel Hunkeler, Martin Elsner
Compound-specific chlorine isotope analysis of tetrachloromethane (CCl4) and trichloromethane (CHCl3) was explored by both, gas chromatography - isotope ratio mass spectrometry (GC-IRMS) and GC - quadrupole MS (GC-qMS), where GC-qMS was validated in an interlaboratory comparison between Munich and Neuchâtel with the same type of commercial GC-qMS instrument. GC-IRMS measurements analyzed CCl isotopologue ions, whereas GC-qMS analyzed the isotopologue ions CCl3, CCl2, CCl (of CCl4) and CHCl3, CHCl2, CHCl (of CHCl3), respectively...
February 10, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28192731/isotrifoliol-inhibits-pro-inflammatory-mediators-by-suppression-of-tlr-nf-%C3%AE%C2%BAb-and-tlr-mapk-signaling-in-lps-induced-raw264-7-cells
#19
Hua Li, Jeong-Hyun Yoon, Hyo-Jun Won, Hyeon-Seon Ji, Heong Joo Yuk, Ki Hun Park, Ho-Yong Park, Tae-Sook Jeong
Soybeans, produced by Glycine max (L.) Merr., contain high levels of isoflavones, such as genistein and daidzein. However, soy leaves contain more diverse and abundant flavonol glycosides and coumestans, as compared to the soybean. This study investigated the anti-inflammatory effects of the major coumestans present in soy leaf (coumestrol, isotrifoliol, and phaseol) in lipopolysaccharide (LPS)-induced RAW264.7 cells. Coumestans significantly reduced LPS-induced nitric oxide (NO), prostaglandin E2 (PGE2), and reactive oxygen species (ROS) production; isotrifoliol had the most potent anti-inflammatory activity...
February 10, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28192186/elevated-expression-of-erbin-destabilizes-er%C3%AE-protein-and-promotes-tumorigenesis-in-hepatocellular-carcinoma
#20
Hua Wu, Su Yao, Shen Zhang, Jing-Ru Wang, Peng-Da Guo, Xiu-Ming Li, Wen-Juan Gan, Lin Mei, Tian-Ming Gao, Jian-Ming Li
BACKGROUND & AIMS: Aberrant estrogen receptor-α (ERα) expression and signaling are implicated in the development of hepatocellular carcinoma (HCC), but its regulation in HCC remains enigmatic. Herein, we aimed to identify a new mechanism by which ERα signaling is regulated in HCC, which may lead to a potential new strategy for HCC therapy. METHODS: Expression levels of' Erbin and ERα in human HCC samples were evaluated by immunohistochemistry. In vitro and in vivo experiments were used to assess the effect of Erbin and ERα signaling on HCC cells growth...
February 9, 2017: Journal of Hepatology
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