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Lipid and chronic hepatitis C

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https://www.readbyqxmd.com/read/28820612/the-potential-of-signal-peptide-peptidase-as-a-therapeutic-target-for-hepatitis-c
#1
Kohji Moriishi
Chronic infection with hepatitis C virus (HCV) causes liver steatosis, cirrhosis, metabolic syndrome with inflammation, and eventually leads to hepatocellular carcinoma. HCV core protein is a well-known capsid protein and pathogenic factor related to lipid accumulation, type 2 diabetes mellitus, and carcinogenesis. Cleavage of the C-terminal transmembrane region by signal peptide peptidase (SPP) is required for maturation of the core protein. Areas covered: Herein, this review details the general aspects of the structure, lifecycle, pathogenesis, and maturation of the HCV core protein, the function of SPP, and clinically available direct-acting antivirals (DAAs)...
August 18, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28811694/estimation-of-upper-limit-of-normal-for-serum-alanine-transaminase-in-healthy-south-indian-population
#2
Pazhanivel Mohan, Varun Sundar, Emmanuel Bhaskar, Syluvai Anthony
Alanine aminotransferase (ALT) is the most common and cost effective screening test for asymptomatic liver disease. There is paucity of data on normal ALT among healthy individuals in India. An observational cross sectional study was conducted from January to July 2013 to estimate the upper limit of normal for ALT in healthy south Indian population. Adults undergoing voluntary or pre-employment health screening were included. Those with current and past alcoholism or smoking, acute illness or hospitalization during preceding 12 months, non-steroidal anti-inflammatory or over the counter medication use within a month, current or past intake of herbal medications, any chronic medical illness, abnormal body mass index (BMI), fatty liver in ultrasound, abnormality in haemoglobin, platelet count, blood sugar, creatinine, lipid profile and thyroid function test and positive serology (Hepatitis B, C or HIV) were excluded...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28729862/rad51-interacts-with-non-structural-3-protein-of-hepatitis-c-virus-and-regulates-viral-production
#3
Kidong Son, Tram T T Nguyen, Jae-Woong Choi, Long V Pham, Trang T D Luong, Yun-Sook Lim, Soon B Hwang
Hepatitis C virus (HCV) is a leading cause of chronic liver disease affecting over 170 million people worldwide. Chronic infection with HCV progresses to liver fibrosis, cirrhosis, and hepatocellular carcinoma. HCV exploits host cellular factors for viral propagation. To investigate the cellular factors required for HCV propagation, we screened a siRNA library targeting human cell cycle genes using cell culture grown HCV-infected cells. In the present study, we selected and characterized a gene encoding Rad51...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28707319/tenofovir-disoproxil-fumarate-significantly-decreases-serum-lipoprotein-levels-compared-with-entecavir-nucleos-t-ide-analogue-therapy-in-chronic-hepatitis-b-carriers
#4
A A Shaheen, M AlMattooq, S Yazdanfar, K W Burak, M G Swain, S E Congly, M A Borman, S S Lee, R P Myers, C S Coffin
BACKGROUND: Tenofovir disoproxil fumarate (TDF) and entecavir (ETV) are first-line treatments for chronic hepatitis B (CHB). Studies suggest lipid lowering effect of TDF in human immunodeficiency virus positive (HIV+) individuals, but the effect on lipids and cardiovascular disease (CVD) risk in CHB is unknown. AIM: To compare TDF vs ETV effects on lipid levels in CHB. METHODS: In this retrospective cohort study, data on serum lipids and CVD risk factors at baseline and ~1 year on TDF or ETV were collected from CHB carriers...
September 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28689587/metabolic-manifestations-of-hepatitis-c-virus-diabetes-mellitus-dyslipidemia
#5
REVIEW
Lawrence Serfaty
Metabolic disorders are common in patients with chronic hepatitis C virus (HCV) infection. Epidemiologic and clinical data indicate an overprevalence of lipids abnormalite, steatosis, insuline resistance (IR) and diabetes mellitus in HCV patients, suggesting that HCV itself may interact with glucido-lipidic metabolism. HCV interacts with the host lipid metabolism by several mechanisms leading to hepatic steatosis and hypolipidemia which are reversible after viral eradication. Liver and peripheral IR are HCV genotype/viral load dependent and improved after viral eradication...
August 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28686624/adverse-effects-of-chronic-exposure-to-nonylphenol-on-non-alcoholic-fatty-liver-disease-in-male-rats
#6
Jie Yu, Xuesong Yang, Ya Luo, Xuefeng Yang, Mengxue Yang, Jin Yang, Jie Zhou, Feng Gao, Liting He, Jie Xu
Endocrine-disrupting chemical (EDC) has been thought to play a role in non-alcoholic fatty liver disease (NAFLD). However, the toxic effects of Nonylphenol (NP), an EDC, on non-alcoholic fatty liver disease have never been elaborated. This study aimed to investigate whether exposure to NP could induce NAFDL, a promoting effect of high-sucrose-high-fat diet (HSHFD) on the adverse effects caused by NP was evaluated. Fourth eight male rats were assigned to four groups and each group was treated with a specific testing sample: normal-diet (ND) control group (C-ND); normal diet plus NP (180mg/kg/day) group (NP-ND); high-sucrose-high-fat-diet control group (C-HSHFD); HSHFD plus NP (180mg/kg/day) group (NP-HSHFD)...
2017: PloS One
https://www.readbyqxmd.com/read/28657143/emergence-of-drug-resistance-associated-variants-and-changes-in-serum-lipid-profiles-in-sofosbuvir-plus-ledipasvir-treated-chronic-hepatitis-c-patients
#7
Hiromi Kan, Michio Imamura, Yoshiiku Kawakami, Kana Daijo, Yuji Teraoka, Fumi Honda, Yuki Nakamura, Kei Morio, Tomoki Kobayashi, Takashi Nakahara, Yuko Nagaoki, Tomokazu Kawaoka, Masataka Tsuge, Hiroshi Aikata, Clair Nelson Hayes, Daiki Miki, Hidenori Ochi, Yoji Honda, Nami Mori, Shintaro Takaki, Keiji Tsuji, Kazuaki Chayama
Combination of sofosbuvir plus ledipasvir therapy has been expected to enhance sustained virological response (SVR) rates in hepatitis C virus (HCV) genotype 1 chronic infected patients. We analyzed the emergence of drug resistance-associated variants (RAVs) in treatment failure and changes in lipid profiles in sofosbuvir/ledipasvir-treated patients. A total of 176 patients with chronic HCV genotype 1 infection without decompensated liver cirrhosis were treated with sofosbuvir/ledipasvir for 12 weeks. NS5A and NS5B RAVs were determined by either Invader assay or direct sequencing...
June 28, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28634113/vitamin-d3-supplementation-attenuates-the-early-stage-of-mouse-hepatocarcinogenesis-promoted-by-hexachlorobenzene-fungicide
#8
Guilherme R Romualdo, Renata L Goto, Ana A H Fernandes, Bruno Cogliati, Luis F Barbisan
Hexachlorobezene (HCB), a fungicide widely distributed in the environment, promotes the development of hepatocellular preneoplastic lesions (PNL) and tumors in rodents. In contrast, vitamin D3 (VD3) supplementation presents a potential role for the prevention/treatment of chronic liver diseases. Thus, we investigated whether VD3 supplementation attenuates the early stage of HCB-promoted hepatocarcinogenesis. Female Balb/C mice were injected a single dose of diethylnitrosamine (DEN, 50 mg/kg) at postnatal day 15...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28630011/interplay-between-hepatitis-c-virus-and-lipid-metabolism-during-virus-entry-and-assembly
#9
REVIEW
Muriel Lavie, Jean Dubuisson
Hepatitis C virus (HCV) infection is a major public health problem worldwide. In most cases, HCV infection becomes chronic, leading to the development of liver diseases that range from fibrosis to cirrhosis and hepatocellular carcinoma. Due to its medical importance, the HCV life cycle has been deeply characterized, and a unique feature of this virus is its interplay with lipids. Accordingly, all the steps of the virus life cycle are influenced by the host lipid metabolism. Indeed, due to their association with host lipoproteins, HCV particles have a unique lipid composition...
June 16, 2017: Biochimie
https://www.readbyqxmd.com/read/28625086/hepatitis-c-virus-apolipoprotein-interactions-molecular-mechanisms-and-clinical-impact
#10
Emilie Crouchet, Thomas F Baumert, Catherine Schuster
Chronic hepatitis C virus (HCV) infection is a leading cause of cirrhosis, hepatocellular carcinoma and liver failure. Moreover, chronic HCV infection is associated with liver steatosis and metabolic disorders. With 130-150 million people chronically infected in the world, HCV infection represents a major public health problem. One hallmark on the virus is its close link with hepatic lipid and lipoprotein metabolism. Areas covered: HCV is associated with lipoprotein components such as apolipoproteins. These interactions play a key role in the viral life cycle, viral persistence and pathogenesis of liver disease...
June 30, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28615303/favouring-modulation-of-circulating-lipoproteins-and-lipid-loading-capacity-by-direct-antiviral-agents-grazoprevir-elbasvir-or-ledipasvir-sofosbuvir-treatment-against-chronic-hcv-infection
#11
Hung-Yu Sun, Pin-Nan Cheng, Chiung-Ying Tseng, Wei-Jen Tsai, Yen-Cheng Chiu, Kung-Chia Young
OBJECTIVE: Lipid homoeostasis is disturbed in patients with HCV infection. Direct-acting antiviral agent (DAA) treatment eradicates chronic HCV viraemia, but the dynamics of lipid components remain elusive. This study investigates the clinical manifestation and mechanistic relevance of plasma triglyceride (TG), cholesterol (Chol), lipoproteins and apolipoproteins (apos) after DAA treatment. DESIGN: Twenty-four patients with chronic genotype 1 (GT1) HCV treated with elbasvir/grazoprevir or ledipasvir/sofosbuvir for 12 weeks, and followed-up thereafter, were recruited...
June 14, 2017: Gut
https://www.readbyqxmd.com/read/28599245/anti-inflammatory-and-ameliorative-effects-of-gallic-acid-on-fluoxetine-induced-oxidative-stress-and-liver-damage-in-rats
#12
Omid Karimi-Khouzani, Esfandiar Heidarian, Sayed Asadollah Amini
BACKGROUND: Fluoxetine-induced liver damage is a cause of chronic liver disease. In the present study the hepatoprotective effects of gallic acid against fluoxetine-induced liver damage were examined. METHODS: Forty-eight male rats were divided into six groups as follow: group 1, the control group; group 2, rats receiving fluoxetine (24mg/kg bw daily, po) without treatment; group 3, rats receiving 24mg/kg bw fluoxetine, treated with 50mg/kg bw silymarin and groups 4, 5, and 6 in which gallic acid (50, 100, and 200mg/kg bw, po, respectively) was prescribed after the consumption of fluoxetine...
March 23, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28586387/salsalate-ameliorates-metabolic-disturbances-by-reducing-inflammation-in-spontaneously-hypertensive-rats-expressing-human-c-reactive-protein-and-by-activating-brown-adipose-tissue-in-nontransgenic-controls
#13
Jaroslava Trnovská, Jan Šilhavý, Ondřej Kuda, Vladimír Landa, Václav Zídek, Petr Mlejnek, Miroslava Šimáková, Hynek Strnad, Vojtěch Škop, Olena Oliyarnyk, Ludmila Kazdová, Martin Haluzík, Michal Pravenec
Chronic low-grade inflammation plays an important role in the pathogenesis of insulin resistance. In the current study, we tested the effects of salsalate, a non-steroidal anti-inflammatory drug, in an animal model of inflammation and metabolic syndrome using spontaneously hypertensive rats (SHR) that transgenically express human C-reactive protein (SHR-CRP rats). We treated 15-month-old male transgenic SHR-CRP rats and nontransgenic SHR with salsalate (200 mg/kg/day) mixed as part of a standard diet for 4 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28507477/enzymatic-hydrolysate-from-velvet-antler-suppresses-adipogenesis-in-3t3-l1-cells-and-attenuates-obesity-in-high-fat-diet-fed-mice
#14
Yuling Ding, Yanmei Wang, Byong-Tae Jeon, Sang-Ho Moon, Seung-Hong Lee
The purpose of the current study was to investigate the potential anti-obesity activity of an enzymatic hydrolysate of velvet antler in inhibiting adipogenesis in 3T3-L1 cells and in high-fat diet (HFD)-fed obese mice. The enzymatic hydrolysate was prepared using the commercial food grade protease, Protamex. The velvet antler Protamex hydrolysate (VAPH) indicated profound inhibitory effects on adipogenesis dose-dependently by decreasing the accumulation of triglycerides and down-regulating expression levels of adipogenesis-related proteins C/EBPα, SREBP-1, and PPARγ...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28502908/chronic-administration-of-antioxidant-resin-from-virola-oleifera-attenuates-atherogenesis-in-ldlr-mice
#15
Paola Nogueira Coutinho, Beatriz Peters Pereira, Ana Claudia Hertel Pereira, Marcella Leite Porto, Arícia Leone Evangelista Monteiro de Assis, Afrânio Côgo Destefani, Silvana Santos Meyrelles, Elisardo Corral Vasquez, Breno Valentim Nogueira, Tadeu Uggere de Andrade, Denise Coutinho Endringer, Marcio Fronza, Thiago Melo Costa Pereira
ETHNOPHARMACOLOGICAL RELEVANCE: Virola oleifera (Schott) A. C. Smith, Myristicaceae has been largely used in traditional folk medicine in Brazil as an anti-inflammatory agent and our previous data indicated the antioxidant properties in other oxidative stress-related models. However, its effects on atherosclerosis (AT) are not yet investigated. AIMS OF THE STUDY: To evaluate the influence of resin from Virola oleifera (RV) on progression of AT in LDLr(-/-) mice...
July 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28475247/exploration-of-potential-mechanisms-of-hcv-resistance-in-exposed-uninfected-intravenous-drug-users
#16
Isaac Thom Shawa, Daniel J Felmlee, Doha Hegazy, David A Sheridan, Matthew E Cramp
A rare outcome following exposure to hepatitis C virus (HCV) is a lack of observable infection as clinically measured by HCV RNA or HCV recognising antibodies. The population who exhibit this trait is termed exposed uninfected (EU). Increasing evidence has refined characterisation of these individuals, distinct from those who become infected but spontaneously clear HCV. Study of the EU population is highly pertinent for the discovery of antiviral mechanisms of resistance that can reveal antiviral therapeutic strategies...
May 5, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28471945/metabolic-concerns-in-aging-hiv-infected-persons-from-serum-lipid-phenotype-to-fatty-liver
#17
Giovanni Guaraldi, Amedeo Lonardo, Liliana Maia, Frank J Palella
: Among HIV-infected persons, the assessment of nonalcoholic fatty liver disease (NAFLD) provides a window through which overall metabolic health can be evaluated. In this review, we summarize clinical data that support the roles of aging and metabolic dysregulation as factors contributing to fatty liver/NAFLD among HIV-infected persons.Age-related metabolic alterations include hepatic anatomic and functional changes, altered homeostasis of gastrointestinal microbiota and anthropometric changes (such as a shift of body fat depots from the subcutaneous to the visceral compartment) that are often associated with the development of insulin resistance and increased cardiovascular risk...
June 1, 2017: AIDS
https://www.readbyqxmd.com/read/28455662/close-correlation-between-the-ankle-brachial-index-and-symptoms-of-depression-in-hemodialysis-patients
#18
Ing-Chin Jong, Hung-Bin Tsai, Chien-Hung Lin, Tsung-Liang Ma, How-Ran Guo, Peir-Haur Hung, Kuan-Yu Hung
BACKGROUND: As both of peripheral arterial disease (PAD) and depression carried a poor prognosis in patients on maintenance hemodialysis (MHD), we investigated the correlation between the ankle-brachial index (ABI), an indicator of subclinical PAD, and symptoms of depression in patients on MHD. METHODS: One hundred and twenty-nine patients on MHD (75 males and 54 females, mean age 64.8 ± 12 years) were enrolled in this cross-sectional study, which aimed at evaluating the relationship between symptoms of depression and ABI...
August 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28454041/long-term-intake-of-a-high-protein-diet-increases-liver-triacylglycerol-deposition-pathways-and-hepatic-signs-of-injury-in-rats
#19
Rubén Díaz-Rúa, Jaap Keijer, Andreu Palou, Evert M van Schothorst, Paula Oliver
Intake of high-protein (HP) diets has increased over the last years, mainly due to their popularity for body weight control. Liver is the main organ handling ingested macronutrients and it is associated with the beginning of different pathologies. We aimed to deepen our knowledge on molecular pathways affected by long-term intake of an HP diet. We performed a transcriptome analysis on liver of rats chronically fed with a casein-rich HP diet and analyzed molecular parameters related to liver injury. Chronic increase in the dietary protein/carbohydrate ratio up-regulated processes related with amino acid uptake/metabolism and lipid synthesis, promoting a molecular environment indicative of hepatic triacylglycerol (TG) deposition...
August 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28428715/impact-of-interferon-free-antivirus-therapy-on-lipid-profiles-in-patients-with-chronic-hepatitis-c-genotype-1b
#20
Daisuke Endo, Kenichi Satoh, Noritomo Shimada, Atsushi Hokari, Yoshio Aizawa
AIM: To investigate the influence of interferon-free antivirus therapy on lipid profiles in chronic hepatitis C virus genotype 1b (HCV1b) infection. METHODS: Interferon-free antiviral agents were used to treat 276 patients with chronic HCV1b infection, and changes in serum lipids of those who achieved sustained virologic response (SVR) were examined. The treatment regimen included 24 wk of daclatasvir plus asunaprevir (DCV + ASV) or 12 wk of sofosbuvir plus ledipasvir (SOF + LDV)...
April 7, 2017: World Journal of Gastroenterology: WJG
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