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https://www.readbyqxmd.com/read/28918026/anti-fibrotic-effects-of-synthetic-oligodeoxynucleotide-for-tgf-%C3%AE-1-and-smad-in-an-animal-model-of-liver-cirrhosis
#1
Jung-Yeon Kim, Hyun-Jin An, Woon-Hae Kim, Mi-Gyeong Gwon, Hyemin Gu, Yoon-Yub Park, Kwan-Kyu Park
Liver fibrosis is characterized by changes in tissue architecture and extracellular matrix composition. Liver fibrosis affects not only hepatocytes but also the non-parenchymal cells such as hepatic stellate cells (HSCs), which are essential for maintaining an intact liver structure and function. Transforming growth factor β1 (TGF-β1) is a multifunctional cytokine that induces liver fibrosis through activation of Smad signaling pathways. To improve a new therapeutic approach, synthetic TGF-β1/Smad oligodeoxynucleotide (ODN) was used to suppress both TGF-β1 expression and Smad transcription factor using a combination of antisense ODN and decoy ODN...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28916633/systems-genetics-identifies-a-co-regulated-module-of-liver-micrornas-associated-with-plasma-ldl-cholesterol-in-murine-diet-induced-dyslipidemia
#2
Alisha R Coffey, Tangi L Smallwood, Jody Albright, Kunjie Hua, Matt Kanke, Daniel Pomp, Brian J Bennett, Praveen Sethupathy
Chronically altered levels of circulating lipids, termed dyslipidemia, is a significant risk factor for a number of metabolic and cardiovascular morbidities. MicroRNAs (miRNAs) have emerged as important regulators of lipid balance, have been implicated in dyslipidemia, and have been proposed as candidate therapeutic targets in lipid-related disorders including atherosclerosis. A major limitation of most murine studies of miRNAs in lipid metabolic disorders is that they have been performed in just one (or very few) inbred strains, such as C57BL/6...
September 15, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28916355/grouper-stat1a-is-involved-in-antiviral-immune-response-against-iridovirus-and-nodavirus-infection
#3
Jingcheng Zhang, Xiaohong Huang, Songwei Ni, Jiaxin Liu, Yin Hu, Ying Yang, Yepin Yu, Linli Zhou, Qiwei Qin, Youhua Huang
Signal Transducer and Activator of Transcription 1 (STAT1) has been demonstrated to function as a critical mediator in multiple cell processes, such as cell proliferation, cell death, and innate immune response. Interestingly, two orthologues of human STAT1, including STAT1a and STAT1b genes have been identified in different fish. However, the detailed roles of fish STAT1a in virus replication still remained largely uncertain. Here, we cloned a STAT1a from orange-spotted grouper Epinephelus coioides (EcSTAT1a) and characterized its roles during fish virus infection...
September 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28910310/gugulipid-causes-hypercholesterolemia-leading-to-endothelial-dysfunction-increased-atherosclerosis-and-premature-death-by-ischemic-heart-disease-in-male-mice
#4
Andrea Leiva, Susana Contreras-Duarte, Ludwig Amigo, Esteban Sepúlveda, Mauricio Boric, Verónica Quiñones, Dolores Busso, Attilio Rigotti
For proper cholesterol metabolism, normal expression and function of scavenger receptor class B type I (SR-BI), a high-density lipoprotein (HDL) receptor, is required. Among the factors that regulate overall cholesterol homeostasis and HDL metabolism, the nuclear farnesoid X receptor plays an important role. Guggulsterone, a bioactive compound present in the natural product gugulipid, is an antagonist of this receptor. This natural product is widely used globally as a natural lipid-lowering agent, although its anti-atherogenic cardiovascular benefit in animal models or humans is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28905319/pi3k-inhibition-protects-mice-from-nafld-by-down-regulating-cmklr1-and-nlrp3-in-kupffer-cells
#5
Wenfeng Zhang, Yan Liu, Mingbing Wu, Xiwen Zhu, Tao Wang, Kun He, Peizhi Li, Xiaoling Wu
Inflammation induced by high-fat diet (HFD) is of critical importance in the development of hepatic steatosis. The role of chemerin in the progress of nonalcoholic fatty liver disease (NAFLD) remains controversial. Here, we have evaluated the effects and mechanism of chemerin on insulin sensitivity and inflammation. An inhibitor (wortmannin) and agonist (insulin-like growth factor 1 (IGF-1) of phosphatidyl inositol 3-kinase (PI3K) were applied to Kupffer cells (KCs) after treatment with a concentration gradient of chemerin in vitro...
September 13, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28903486/nonalcoholic-fatty-liver-disease-is-a-susceptibility-factor-for-perchloroethylene-induced-liver-effects-in-mice
#6
Joseph A Cichocki, Shinji Furuya, Yu-Syuan Luo, Yasuhiro Iwata, Kranti Konganti, Weihsueh A Chiu, David W Threadgill, Igor P Pogribny, Ivan Rusyn
Nonalcoholic fatty liver disease (NAFLD) is the most prevalent pathological liver condition in developed countries. NAFLD results in severe alterations in liver function, including xenobiotic metabolism. Perchloroethylene (PERC) is a ubiquitous environmental pollutant, a known hepatotoxicant in rodents, and a probable human carcinogen. It is known that PERC disposition and metabolism are affected by NAFLD in mice; here, we examined how NAFLD changes PERC-associated liver effects. Male C57Bl6/J mice were fed a low-fat diet (LFD), high-fat diet (HFD), or methionine/folate/choline-deficient diet (MCD) to model a healthy liver, or mild and severe forms of NAFLD, respectively...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28903312/gnp-gapdh1-22-nanovaccines-prevent-neonatal-listeriosis-by-blocking-microglial-apoptosis-and-bacterial-dissemination
#7
Ricardo Calderon-Gonzalez, Elisabet Frande-Cabanes, Hector Teran-Navarro, José María Marimon, Javier Freire, David Salcines-Cuevas, M Carmen Fariñas, Claudia Onzalez-Rico, Marco Marradi, Isabel Garcia, Mirian Alkorta-Gurrutxaga, Aida San Nicolas-Gomez, Ana Castañeda-Sampedro, Sonsoles Yañez-Diaz, Soledad Penades, Carmen Punzon, Javier Gomez-Roman, Fernando Rivera, Manuel Fresno, Carmen Alvarez-Dominguez
Clinical cases of neonatal listeriosis are associated with brain disease and fetal loss due to complications in early or late pregnancy, which suggests that microglial function is altered. This is believed to be the first study to link microglial apoptosis with neonatal listeriosis and listeriosis-associated brain disease, and to propose a new nanovaccine formulation that reverses all effects of listeriosis and confers Listeria monocytogenes (LM)-specific immunity. We examined clinical cases of neonatal listeriosis in 2013-2015 and defined two useful prognostic immune biomarkers to design listeriosis vaccines: high anti-GAPDH1-22 titres and tumor necrosis factor (TNF)/interleukin (IL)-6 ratios...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902450/current-status-of-portal-vein-thrombosis-in-japan-results-of-a-questionnaire-survey-by-the-japan-society-for-portal-hypertension
#8
Seiichiro Kojima, Norihito Watanabe, Jun Koizumi, Shigehiro Kokubu, Naoya Murashima, Shoichi Matsutani, Katsutoshi Obara
AIM: To investigate the current status of portal vein thrombosis (PVT) in Japan, the Clinical Research Committee of the Japan Society of Portal Hypertension conducted a questionnaire survey. METHODS: A questionnaire survey of 539 cases of PVT over the previous 10 years was conducted at institutions affiliated with the Board of Trustees of the Japan Society of Portal Hypertension. RESULTS: The most frequent underlying etiology of PVT was liver cirrhosis (LC) in 75...
September 13, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28894435/neuroactive-steroids-receptor-interactions-and-responses
#9
REVIEW
Kald Beshir Tuem, Tesfay Mehari Atey
Neuroactive steroids (NASs) are naturally occurring steroids, which are synthesized centrally as de novo from cholesterol and are classified as pregnane, androstane, and sulfated neurosteroids (NSs). NASs modulate many processes via interacting with gamma-aminobutyric acid (GABA), N-methyl-d-aspartate, serotonin, voltage-gated calcium channels, voltage-dependent anion channels, α-adrenoreceptors, X-receptors of the liver, transient receptor potential channels, microtubule-associated protein 2, neurotrophin nerve growth factor, and σ1 receptors...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28890346/hepatoprotective-effects-of-methyl-ferulic-acid-on-alcohol-induced-liver-oxidative-injury-in-mice-by-inhibiting-the-nox4-ros-mapk-pathway
#10
Chen Li, Li Li, Cheng-Fang Yang, Yu-Juan Zhong, Dan Wu, Lin Shi, Li Chen, Yong-Wen Li
AIMS: The present study aimed to investigate the hepatoprotective effects of Methyl ferulic acid (MFA) against oxidative stress and apoptosis as well as inflammation in mice with liver injury induced by alcohol and its underlying mechanisms. METHODS: C57BL/6 mice were divided into a control group,a model group, and Methyl ferulic acid with high dosage (20 mg/kg), moderate dosage (10 mg/kg) and low dosage (5 mg/kg) groups. The general condition and organ index of each group were investigated...
September 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28887067/rush-to-the-fire-fgf21-extinguishes-metabolic-stress-metaflammation-and-tissue-damage
#11
REVIEW
Yongde Luo, Sheng Ye, Xiong Chen, Fanghua Gong, Weiqin Lu, Xiaokun Li
FGF21 is a master regulator of homeostasis of local and systemic lipid, glucose and energy metabolism. Since its discovery a decade ago, significant progress has been made in understanding the basic molecular, cellular and physiological mechanisms underlying its metabolic roles, and characterizing its beneficial pharmacological activities and possible pathological roles in obesity, diabetes, dyslipidemia, fatty liver disease and their collateral complications and tissue damage. Under basal or normal conditions, FGF21 appears to play a dispensable role in metabolism...
August 26, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28882572/identification-of-essential-transcription-factors-for-adequate-dna-damage-response-after-benzo-a-pyrene-and-aflatoxin-b1-exposure-by-combining-transcriptomics-with-functional-genomics
#12
Evelyn Smit, Terezinha Souza, Danyel G J Jennen, Jos C S Kleinjans, Twan van den Beucken
DNA damage mediates widespread changes in transcription through activation or repression of transcription factors (TFs). However, the consequences of regulating specific TFs for the outcome of the DNA repair process remain incompletely understood. Here, we combined transcriptomics and TF binding prediction with functional genomics to identify TFs essential for adequate DNA repair in HepG2 liver cells after a non-cytotoxic dose of carcinogens benzo(a)pyrene (BaP) (2μM) and aflatoxin B1 (AFB1) (5μM). BaP and AFB1 induced a largely common transcriptional response, mediated by similar TFs...
September 4, 2017: Toxicology
https://www.readbyqxmd.com/read/28880231/the-impact-of-sex-and-25-oh-d-deficiency-on-metabolic-function-in-mice
#13
Ryan J Giblin, Ellen J Bennett, Graeme R Zosky, Renée M Dwyer
Both dietary fat and vitamin D deficiency have been linked with increased incidence of non-alcoholic fatty liver disease and insulin resistance. While sex differences in disease prevalence and severity are well known, the impact on disease pathogenesis remains unclear. To further explore the effect of these exposures on metabolic function, C57BL/6 male and female mice were weaned onto one of four diets; low fat vitamin D replete, low fat vitamin D deficient, or two high fat diets, one vitamin D replete and one deficient...
September 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28880224/parenteral-nutrition-associated-liver-disease-the-role-of-the-gut-microbiota
#14
REVIEW
Monika Cahova, Miriam Bratova, Petr Wohl
Parenteral nutrition (PN) provides life-saving nutritional support in situations where caloric supply via the enteral route cannot cover the necessary needs of the organism. However, it does have serious adverse effects, including parenteral nutrition-associated liver disease (PNALD). The development of liver injury associated with PN is multifactorial, including non-specific intestine inflammation, compromised intestinal permeability, and barrier function associated with increased bacterial translocation, primary and secondary cholangitis, cholelithiasis, short bowel syndrome, disturbance of hepatobiliary circulation, lack of enteral nutrition, shortage of some nutrients (proteins, essential fatty acids, choline, glycine, taurine, carnitine, etc...
September 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28874357/reduced-obesity-diabetes-and-steatosis-upon-cinnamon-and-grape-pomace-are-associated-with-changes-in-gut-microbiota-and-markers-of-gut-barrier
#15
Matthias Van Hul, Lucie Geurts, Hubert Plovier, Céline Druart, Amandine Everard, Marcus Ståhlman, Moez Rhimi, Kleopatra Chira, Pierre-Louis Teissedre, Nathalie M Delzenne, Emmanuelle Maguin, Angèle Guilbot, Amandine Brochot, Philippe Gerard, Fredrik Bäckhed, Patrice D Cani
Increasing evidence suggests that polyphenols have a significant potential in the prevention and treatment of risk factors associated with metabolic syndrome. The objective of this study was to assess the metabolic outcomes of two polyphenol-containing extracts from cinnamon bark (CBE) and grape pomace (GPE) on C57BL/6J mice fed a high-fat diet (HFD) for 8 weeks. Both CBE and GPE were able to decrease fat mass gain and adipose tissue inflammation in mice fed a HFD without reducing food intake. This was associated with reduced liver steatosis and lower plasma non-esterified fatty acids levels...
September 5, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28873070/functional-assessment-of-genetic-variants-located-in-the-promoter-of-shp1-nr0b2
#16
Katharina Prestin, Maria Olbert, Janine Hussner, Henry Völzke, Henriette E Meyer Zu Schwabedissen
Small heterodimer partner 1 (SHP1, NR0B2) is a member of the superfamily of nuclear receptors (NRs). Even if this orphan receptor, unlike other NRs, lacks the DNA-binding domain, it is capable of regulating transcription by repressing the activity of other NRs by direct protein-protein interaction. Accordingly, SHP1 is part of negative feedback loops of the transcriptional regulation of genes involved in drug metabolism and various metabolic pathways including bile acid and glucose homeostasis. Although it is known that several interacting partners of SHP1 also modulate its expression, there is little information about genetic variability of this regulatory mechanism...
August 31, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28872123/ileectomy-induced-bile-overaccumulation-in-mouse-intestine
#17
Rongli Zhang, Jonathan W Ray, Mukesh K Jain, Shuxin Han
Intestinal resection is a common therapeutic approach for human diseases such as obesity, inflammatory bowel disease, Crohn's disease, and colon cancer that often results in severe short bowel syndrome-like adverse effects including bile acid diarrhea, dehydration, electrolyte disturbances, and nutrient malabsorption. Here we introduce a murine ileal resection model, termed ileectomy, to evaluate tissue communication and the maintenance of systemic homeostasis. After ileal resection, circulating blood is permanently devoid of the ileum-specific endocrine hormone fibroblast growth factor 15 (FGF15), which releases its endocrinal inhibition of bile acid synthesis in the liver...
August 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28866420/protective-effects-of-phloridzin-against-methotrexate-induced-liver-toxicity-in-rats
#18
Mohamed M A Khalifa, Adel G Bakr, Adel T Osman
BACKGROUND: Liver is the largest internal organ concerning with metabolism, hormonal balance and clarifying of the toxins. One of the main complications of methotrexate (MTX) therapy was the hepatic injury. OBJECTIVE: This study was conducted to elucidate the possible protective effects of phloridzin (PHL) against MTX-induced hepatotoxicity as compared to standard agent N-acetylcysteine (NAC). MATERIALS AND METHODS: Rats were randomly divided into a normal control group, a respective group (PHL 40mg/kg/day orally (p...
August 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28865619/a-comprehensive-approach-to-formulation-of-seaweed-enriched-meat-products-from-technological-development-to-assessment-of-healthy-properties
#19
S Cofrades, J Benedí, A Garcimartin, F J Sánchez-Muniz, F Jimenez-Colmenero
Meat consumption is influenced by various kinds of factors, among them health implications. Different strategies can be effective in developing meat-based functional foods. These basically entail reducing the presence of compounds with negative health implications and enhancing the presence of beneficial compounds. This article reviews a comprehensive model for the development of meat-based functional foods based on a presentation of the research achieved in terms of the design and development of qualitatively and quantitatively modified meat products (frankfurters, patties and restructured steaks)...
September 2017: Food Research International
https://www.readbyqxmd.com/read/28864379/overexpression-of-heparin-binding-epidermal-growth-factor-like-growth-factor-mediates-liver-fibrosis-in-transgenic-mice
#20
Yongze Guo, Qian Ding, Lei Chen, Chenguang Ji, Huiyao Hao, Jia Wang, Wei Qi, Xiaoli Xie, Junji Ma, Aidi Li, Xiaoyu Jiang, Xiaotian Li, Huiqing Jiang
BACKGROUND: The role of heparin-binding epidermal growth factor-like growth factor (HB-EGF) in liver fibrosis is not clear and is sometimes even contradictory. To clarify this role, a HB-EGF transgenic (Tg) mouse model was, for the first time, used to evaluate the functions of HB-EGF in liver fibrosis. MATERIALS AND METHODS: For the in vivo study, carbon tetrachloride injection and bile duct ligation treatment were used to induce liver fibrosis in HB-EGF Tg mice and wild-type (WT) mice, respectively...
August 2017: American Journal of the Medical Sciences
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