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https://www.readbyqxmd.com/read/28602867/effect-of-gangjihwan-on-hepatic-steatosis-and-inflammation-in-high-fat-diet-fed-mice
#1
Jong Seong Roh, Haerim Lee, Jonghoon Lim, Jeongjun Kim, Heejung Yang, Yooshik Yoon, Soon Shik Shin, Michung Yoon
ETHNOPHARMACOLOGICAL RELEVANCE: Gangjihwan (DF), a polyherbal drug composed of Ephedra intermedia Schrenk et C. A. Mayer (Ephedraceae), Lithospermum erythrorhizon Siebold et Zuccarini (Borraginaceae), and Rheum palmatum L. (Polygonaceae), is used to treat obesity in local Korean clinics. The constituents of DF have traditionally been reported to exert anti-obesity and anti-nonalcoholic fatty liver disease (NAFLD) effects. Thus, we investigated the effects of DF on obesity and NAFLD and the underlying mechanisms...
June 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28600126/chemokine-cc-motif-receptor-like-2-mrna-is-expressed-in-hepatic-stellate-cells-and-is-positively-associated-with-characteristics-of-non-alcoholic-steatohepatitis-in-mice-and-men
#2
Sebastian Zimny, Rebekka Pohl, Lisa Rein-Fischboeck, Elisabeth M Haberl, Sabrina Krautbauer, Thomas S Weiss, Christa Buechler
Chemokine (CC-motif) receptor-like 2 (CCRL2) is a decoy receptor and regulates the local responses of the chemokine chemerin. Recently our group has shown that the functional chemerin receptor, chemokine-like receptor 1 (CMKLR1), correlates with fibrosis and non-alcoholic steatohepatitis (NASH) score in males only. In our current study, we wanted to know whether CCRL2 shows similar correlations as CMKLR1. Therefore, we analyzed the hepatic expression of CCRL2 in murine NASH and in liver tissues obtained from 85 patients with non-alcoholic fatty liver disease (NAFLD) and 33 controls...
June 15, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28591717/peretinoin-an-acyclic-retinoid-suppresses-steatohepatitis-and-tumorigenesis-by-activating-autophagy-in-mice-fed-an-atherogenic-high-fat-diet
#3
Hikari Okada, Riuta Takabatake, Masao Honda, Kai Takegoshi, Taro Yamashita, Mikiko Nakamura, Takayoshi Shirasaki, Yoshio Sakai, Tetsuro Shimakami, Naoto Nagata, Toshinari Takamura, Takuji Tanaka, Shuichi Kaneko
The pathogenesis of non-alcoholic steatohepatitis (NASH) is still unclear and the prevention of the development of hepatocellular carcinoma (HCC) has not been established. We established an atherogenic and high-fat diet mouse model that develops hepatic steatosis, inflammation, fibrosis, and liver tumors at a high frequency. Using two NASH-HCC mouse models, we showed that peretinoin, an acyclic retinoid, significantly improved liver histology and reduced the incidence of liver tumors. Interestingly, we found that peretinoin induced autophagy in the liver of mice, which was characterized by the increased co-localized expression of microtubule-associated protein light chain 3B-II and lysosome-associated membrane protein 2, and increased autophagosome formation and autophagy flux in the liver...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28538665/molecular-basis-of-alcohol-related-gastric-and-colon-cancer
#4
REVIEW
Hye-Kyung Na, Ja Young Lee
Many meta-analysis, large cohort studies, and experimental studies suggest that chronic alcohol consumption increases the risk of gastric and colon cancer. Ethanol is metabolized by alcohol dehydrogenases (ADH), catalase or cytochrome P450 2E1 (CYP2E1) to acetaldehyde, which is then further oxidized to acetate by aldehyde dehydrogenase (ALDH). Acetaldehyde has been classified by the International Agency for Research on Cancer (IARC) as a Group 1 carcinogen to humans. The acetaldehyde level in the stomach and colon is locally influenced by gastric colonization by Helicobacter pylori or colonic microbes, as well as polymorphisms in the genes encoding tissue alcohol metabolizing enzymes, especially ALDH2...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28482104/mediating-alcohol-use-in-eastern-nigeria-a-qualitative-study-exploring-the-role-of-popular-media-in-young-people-s-recreational-drinking
#5
Emeka W Dumbili, Lesley Henderson
Nigeria has high levels of alcohol consumption, and little or no regulation of the alcohol industry. There is a dearth of studies exploring young adults' drinking in a Nigerian context with only a few predominantly quantitative surveys. These do not explore the social meanings attached to drinking practices nor do they shed light on potential gender differences and how these are mediated by popular media. This qualitative study addresses this gap with semi-structured interviews involving 31 undergraduate students...
June 1, 2017: Health Education Research
https://www.readbyqxmd.com/read/28444769/lesions-of-the-basal-forebrain-cholinergic-neurons-attenuates-sleepiness-and-adenosine-after-alcohol-consumption
#6
Rishi Sharma, Pradeep Sahota, Mahesh M Thakkar
Alcohol has a profound effect on sleep. However, neuronal substrates mediating sleep-promoting effects of alcohol are unknown. Since the basal forebrain (BF) cholinergic neurons are implicated in the homeostatic regulation of sleep, we hypothesized that the BF cholinergic neurons may have an important role in sleepiness observed after alcohol consumption. 192-IgG-saporin (bilateral BF infusions) was used to selectively lesion BF cholinergic neurons in adult male Sprague Dawley rats. Standard surgical procedures were used to implant sleep recording electrodes or microdialysis guide cannulas...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28398003/midkine-in-the-mouse-ventral-tegmental-area-limits-ethanol-intake-and-ccl2-gene-expression
#7
H Chen, D He, A W Lasek
Midkine (MDK) is a cytokine and neurotrophic factor that is more highly expressed in the brains of alcoholics and in mice predisposed to drink large amounts of ethanol, suggesting that MDK may regulate ethanol consumption. Here we measured ethanol consumption in male and female Mdk knockout (-/-) mice using the two-bottle choice and the drinking in the dark (DID) tests. We found that Mdk -/- mice consumed significantly more ethanol than wild-type controls in both tests. To determine if MDK acts in the ventral tegmental area (VTA) to regulate ethanol consumption, we delivered lentivirus expressing a Mdk shRNA into the VTA of male C57BL/6J mice to locally knockdown Mdk and performed the DID test...
April 11, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28387223/ethanol-withdrawal-drives-anxiety-related-behaviors-by-reducing-m-type-potassium-channel-activity-in-the-lateral-habenula
#8
Seungwoo Kang, Jing Li, Wanhong Zuo, Rao Fu, Danielle Gregor, Kresimir Krnjevic, Alex Bekker, Jiang-Hong Ye
Alcohol use disorders (AUDs) and anxiety disorders (ADs) are often seen concurrently, but their underlying cellular basis is unclear. For unclear reasons, the lateral habenula (LHb), a key brain region involved in the pathophysiology of ADs, becomes hyperactive after ethanol withdrawal. M-type K(+) channels (M-channels), important regulators of neuronal activity, are abundant in the LHb, yet little is known about their role in AUDs and associated ADs. We report here that in rats at 24 h withdrawal from systemic ethanol administration (either by intraperitoneal injection, 2 g/kg, twice/day, for 7 days; or intermittent drinking 20% ethanol in a two-bottle free choice protocol for 8 weeks), the basal firing rate and the excitability of LHb neurons in brain slices was higher, whereas the amplitude of medium afterhyperpolarization and M-type K(+) currents were smaller, when compared to ethanol naïve rats...
April 7, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28383062/nox4-regulates-ccr2-and-ccl2-mrna-stability-in-alcoholic-liver-disease
#9
Yu Sasaki, Ali Dehnad, Sarah Fish, Ai Sato, Joy Jiang, Jijing Tian, Kathrin Schröder, Ralf Brandes, Natalie J Török
Recruitment of inflammatory cells is a major feature of alcoholic liver injury however; the signals and cellular sources regulating this are not well defined. C-C chemokine receptor type 2 (CCR2) is expressed by active hepatic stellate cells (HSC) and is a key monocyte recruitment signal. Activated HSC are also important sources of hydrogen peroxide resulting from the activation of NADPH oxidase 4 (NOX4). As the role of this NOX in early alcoholic liver injury has not been addressed, we studied NOX4-mediated regulation of CCR2/CCL2 mRNA stability...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333598/achieving-health-equity-through-community-engagement-in-translating-evidence-to-policy-the-san-francisco-health-improvement-partnership-2010-2016
#10
Kevin Grumbach, Roberto A Vargas, Paula Fleisher, Tomás J Aragón, Lisa Chung, Colleen Chawla, Abbie Yant, Estela R Garcia, Amor Santiago, Perry L Lang, Paula Jones, Wylie Liu, Laura A Schmidt
BACKGROUND: The San Francisco Health Improvement Partnership (SFHIP) promotes health equity by using a novel collective impact model that blends community engagement with evidence-to-policy translational science. The model involves diverse stakeholders, including ethnic-based community health equity coalitions, the local public health department, hospitals and health systems, a health sciences university, a school district, the faith community, and others sectors. COMMUNITY CONTEXT: We report on 3 SFHIP prevention initiatives: reducing consumption of sugar sweetened beverages (SSBs), regulating retail alcohol sales, and eliminating disparities in children's oral health...
March 23, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28300213/effect-of-modulation-of-ppar-%C3%AE-activity-on-kupffer-cells-m1-m2-polarization-in-the-development-of-non-alcoholic-fatty-liver-disease
#11
Wenjing Luo, Qinyu Xu, Qi Wang, Huimin Wu, Jing Hua
Abnormal lipid-mediated hepatic inflammatory-immune dysfunction and chronic low grade inflammation play an important role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Macrophage polarization is an important mechanism for the regulation of inflammatory response. Since PPAR-γ has emerged as a master regulator of macrophage polarization, we aimed to investigate the lipid-induced macrophage/Kupffer cell polarization in vivo and in vitro, and explore the association between PPAR-γ activity and macrophages M1/M2 polarization shifting...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293388/protective-role-of-licochalcone-b-against-ethanol-induced-hepatotoxicity-through-regulation-of-erk-signaling
#12
Xiao-Peng Gao, Dong-Wei Qian, Zhen Xie, Hao Hui
OBJECTIVES: Oxidative stress has been established as a key cause of alcohol-induced hepatotoxicity. Licochalcone B, an extract of licorice root, has shown antioxidative properties. This study was to investigate the effects and mechanisms of licochalcone B in ethanol-induced hepatic injury in an in vitro study. MATERIALS AND METHODS: An in vitro model of Ethanol-induced cytotoxicity in BRL cells was used in this study. Cell injury was assessed using WST-1 assay and lactate dehydrogenase, alanine transaminase, and aspartate aminotransferase release assay...
February 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28243247/dkpk-genes-promote-natural-deastringency-in-c-pcna-persimmon-by-up-regulating-dkpdc-and-dkadh-expression
#13
Changfei Guan, Xiaoyun Du, Qinglin Zhang, Fengwang Ma, Zhengrong Luo, Yong Yang
The astringency of Chinese pollination-constant non-astringent (C-PCNA) persimmon (Diospyros kaki Thunb.) can be naturally removed on the tree. This process is controlled by a single locus and is dominant against other types of persimmons; therefore, this variant is an important candidate for commercial cultivation and the breeding of PCNA cultivars. In our previous study, six full-length coding sequences (CDS) for pyruvate kinase genes (DkPK1-6) were isolated, and DkPK1 is thought to be involved in the natural deastringency of C-PCNA persimmon fruit...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28144388/hepatic-structural-enhancement-and-insulin-resistance-amelioration-due-to-at1-receptor-blockade
#14
EDITORIAL
Vanessa Souza-Mello
Over the last decade, the role of renin-angiotensin system (RAS) on the development of obesity and its comorbidities has been extensively addressed. Both circulating and local RAS components are up-regulated in obesity and involved in non-alcoholic fatty liver disease onset. Pharmacological manipulations of RAS are viable strategies to tackle metabolic impairments caused by the excessive body fat mass. Renin inhibitors rescue insulin resistance, but do not have marked effects on hepatic steatosis. However, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers (ARB) yield beneficial hepatic remodeling...
January 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28119971/spectroscopic-investigation-of-bio-mimetic-solvolysis-of-6-n-n-dimethylamino-2-3-naphthalic-anhydride-in-confined-nanocavities
#15
Falguni Chandra, Suman Mallick, Apurba L Koner
Enzymes are biological catalysts that can vastly accelerate the reaction rate of a substrate by accommodating it within the active site. The local environment provided by the active site of a natural catalyst causes a significant rate-enhancement of the reaction as compared to that without catalyst. The solvolysis reaction of a 6-(N,N-dimethylamino)-2,3-naphthalic anhydride probe is investigated using UV-Vis and fluorescence spectroscopy in pure alcohols and in bio-mimetic nano-sized environments like surfactants, macrocyclic hosts and protein nanocavities...
January 25, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28108359/synaptic-targets-chronic-alcohol-actions
#16
REVIEW
Marisa Roberto, Florence P Varodayan
Alcohol acts on numerous cellular and molecular targets to regulate neuronal communication within the brain. Chronic alcohol exposure and acute withdrawal generate prominent neuroadaptations at synapses, including compensatory effects on the expression, localization and function of synaptic proteins, channels and receptors. The present article reviews the literature describing the synaptic effects of chronic alcohol exposure and their relevance for synaptic transmission in the central nervous system. This review is not meant to be comprehensive, but rather to highlight the effects that have been observed most consistently and that are thought to contribute to the development of alcohol dependence and the negative aspects of withdrawal...
January 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28106368/programmable-shape-recovery-process-of-water-responsive-shape-memory-poly-vinyl-alcohol-by-wettability-contrast-strategy
#17
Zhiqiang Fang, Yudi Kuang, Panpan Zhou, Siyi Ming, Penghui Zhu, Yu Liu, Honglong Ning, Gang Chen
Water-responsive shape-memory polymers (SMPs) are desirable for biomedical applications, but their limited shape recovery process is problematic. Herein, we demonstrate a shape-memory poly(vinyl alcohol) (SM-PVA) with programmable multistep shape recovery processes in water via a wettability contrast strategy. A hexamethyldisilazane (HMDS)-treated SiO2 nanoparticle layer with varying loading weights was rationally deposited onto the surface of SM-PVA, aiming to create surface-wettability contrast. The varying wettability led to different water adsorption behaviors of SM-PVA that could be well-described by the pseudo-first-order kinetic model...
February 6, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28063004/tubulin-alpha-8-is-expressed-in-hepatic-stellate-cells-and-is-induced-in-transformed-hepatocytes
#18
Lisa Rein-Fischboeck, Rebekka Pohl, Elisabeth M Haberl, Sebastian Zimny, Maximilian Neumann, Kristina Eisinger, Thomas S Weiss, Sabrina Krautbauer, Christa Buechler
Tubulin alpha 8 (TUBA8) is highly abundant in murine liver tumors suggesting a role in hepatocellular carcinoma (HCC). Non-alcoholic steatohepatitis (NASH) is a risk factor for HCC. In mice that are fed with a methionine-choline deficient diet for two weeks to induce advanced murine NASH, we do see increased hepatic levels of TUBA8 protein. In animals given a high-fat diet for 14 weeks or an atherogenic diet for 12 weeks, hepatic TUBA8 is unchanged. TUBA8 is highly expressed in human hepatic stellate cells (HSC) and co-localizes with the HSC marker desmin in the murine liver...
April 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28028356/sirtuins-and-nonalcoholic-fatty-liver-disease
#19
REVIEW
Fatiha Nassir, Jamal A Ibdah
Mammalian sirtuins are seven members belonging to the silent information regulator 2 family, a group of Class III histone/protein deacetylases. Sirtuins (SIRT 1-7) have different subcellular localization and function and they regulate cellular protein function through various posttranslational modifications. SIRT1 and 3, the most studied sirtuins, use the product of cellular metabolism nicotinamide adenine dinucleotide as a cofactor to post-translationally deacetylate cellular proteins and consequently link the metabolic status of the cell to protein function...
December 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27978938/-mechanism-of-action-of-the-sirt1-foxo1-adipor2-signaling-pathway-in-alcoholic-fatty-liver-disease
#20
Z Sun, J Y Zhou
Long-term alcohol stimulation may inhibit the expression of silent information regulator 1 in hepatocytes, which increases the acetylation level of forkhead box transcription factor O1, reduces nuclear localization, and reduces the binding capacity of DNA sequence. This further downregulates the expression of downstream adiponectin receptor 2 and microsomal triglyceride transfer protein, causes lipid metabolism disorders and triglyceride deposition in hepatocytes by affecting adiponectin signal transduction and synthesis of very-low-density lipoprotein, and finally promotes the development of alcoholic fatty liver disease...
November 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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