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https://www.readbyqxmd.com/read/29438564/erratum-for-%C3%AE-7-nicotinic-acetylcholine-receptor-agonist-ameliorates-nicotine-plus-high-fat-diet-induced-hepatic-steatosis-in-male-mice-by-inhibiting-oxidative-stress-and-stimulating-ampk-signaling
#1
https://www.readbyqxmd.com/read/29437870/cpt2-downregulation-adapts-hcc-to-lipid-rich-environment-and-promotes-carcinogenesis-via-acylcarnitine-accumulation-in-obesity
#2
Naoto Fujiwara, Hayato Nakagawa, Kenichiro Enooku, Yotaro Kudo, Yuki Hayata, Takuma Nakatsuka, Yasuo Tanaka, Ryosuke Tateishi, Yohko Hikiba, Kento Misumi, Mariko Tanaka, Akimasa Hayashi, Junji Shibahara, Masashi Fukayama, Junichi Arita, Kiyoshi Hasegawa, Hadassa Hirschfield, Yujin Hoshida, Yoshihiro Hirata, Motoyuki Otsuka, Keisuke Tateishi, Kazuhiko Koike
OBJECTIVE: Metabolic reprogramming of tumour cells that allows for adaptation to their local environment is a hallmark of cancer. Interestingly, obesity-driven and non-alcoholic steatohepatitis (NASH)-driven hepatocellular carcinoma (HCC) mouse models commonly exhibit strong steatosis in tumour cells as seen in human steatohepatitic HCC (SH-HCC), which may reflect a characteristic metabolic alteration. DESIGN: Non-tumour and HCC tissues obtained from diethylnitrosamine-injected mice fed either a normal or a high-fat diet (HFD) were subjected to comprehensive metabolome analysis, and the significance of obesity-mediated metabolic alteration in hepatocarcinogenesis was evaluated...
February 6, 2018: Gut
https://www.readbyqxmd.com/read/29437549/hepatic-and-renal-histology-and-mercury-concentrations-of-north-west-and-north-east-greenland-narwhals-monodon-monoceros
#3
Christian Sonne, Pall S Leifsson, Jens Søndergaard, Rune Dietz
Narwhals (Monodon monoceros) are at the top of the Arctic food web and therefore might biomagnify high total mercury (Hg) concentrations in organs and tissues. The aim of this study was to determine histopathology and Hg concentrations in liver and kidneys from 15 North East Greenland narwhals (3 subadult females, 8 adult females, 3 subadult males, and 1 adult male) and compare data with previous observations of 12 North West Greenland specimens (1 subadult female, 4 adult females, 1 subadult male, and 6 adult males)...
February 13, 2018: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29435319/serum-magnesium-concentration-is-independently-associated-with-non-alcoholic-fatty-liver-and-non-alcoholic-steatohepatitis
#4
Ahad Eshraghian, Saman Nikeghbalian, Bita Geramizadeh, Seyed Ali Malek-Hosseini
Background: The pathogenesis of non-alcoholic fatty liver disease (NAFLD) has not been well recognized yet. Objective: This study aimed to investigate the association between serum magnesium concentration and NAFLD. Methods: Study participants were healthy individuals who had undergone liver biopsies between January 2012 and August 2015 as a routine pre-transplant check-up before living donor liver transplantation. Liver biopsy specimens were evaluated by an expert pathologist regarding presence of hepatic steatosis and steatohepatitis...
February 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29434074/validation-of-simple-indexes-for-nonalcoholic-fatty-liver-disease-in-western-china-a-retrospective-cross-sectional-study
#5
Jinzhou Zhu, Mingqing He, Yong Zhang, Tingxin Li, Yuping Liu, Zhiye Xu, Weichang Chen
Various noninvasive algorithms have been developed for predicting the presence of nonalcoholic fatty liver disease (NAFLD). The evaluation of the indexes' diagnostic performance has been reported in Europe and Asia over the past decade; however, external validation of them in China is rare. This study was aimed to evaluate various indexes for NAFLD in western China. It was a retrospective cross-sectional study, using data from a large-scale health check-up project at Sichuan provincial hospital. Receiver operating characteristic (ROC) curves of eight indexes, including the fatty liver index (FLI), the hepatic steatosis index, lipid accumulation product and etc...
February 9, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29432257/progression-of-living-liver-donation-worldwide
#6
Trevor L Nydam, Mettu Srinivas Reddy, Elizabeth A Pomfret, Mohamed Rela
PURPOSE OF REVIEW: Living donor liver transplantation (LDLT) has developed into a well tolerated and viable option when deceased donor transplantation is not available. Transplant and advanced hepatobiliary surgeons from around the world have performed living donor hepatectomies consistently for decades with acceptable donor outcomes. However, optimizing the preoperative workup, donor selection, operative technique, and perioperative care will improve these outcomes. This manuscript reviews recent worldwide literature for the living liver donor...
February 9, 2018: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29431616/role-of-the-pregnane-x-receptor-in-binge-ethanol-induced-steatosis-and-hepatotoxicity
#7
Sora Choi, Afua A Gyamfi, Prince Neequaye, Samuel Addo, Frank J Gonzalez, Maxwell A Gyamfi
The pregnane X receptor (PXR, NR1I2) is a xenobiotic-sensing nuclear receptor that defends against toxic agents. We have shown that PXR promotes chronic ethanol (EtOH)-induced steatosis. Therefore, we examined the role of PXR in binge EtOH-induced hepatotoxicity. Male wild type (WT) and Pxr-null mice were orally administered three binge doses of EtOH (4.5 g/kg, every 12 hours) and euthanized four hours after the final dose. Pxr-null mice displayed higher basal mRNA levels of hepatic lipogenic transcription factor sterol regulatory element binding protein 1c (Srebp-1c) and its target stearoyl-CoA desaturase 1 (Scd1) and the lipid peroxide detoxifying aldo-keto reductase 1b7 (Akr1b7) and higher protein levels of EtOH-metabolizing alcohol dehydrogenase 1 (ADH1)...
February 5, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29428719/combination-effects-of-alogliptin-and-pioglitazone-on-steatosis-and-hepatic-fibrosis-formation-in-a-mouse-model-of-non-alcoholic-steatohepatitis
#8
Yuichiro Amano, Shuntarou Tsuchiya, Mayumi Imai, Kimio Tohyama, Jun Matsukawa, Osamu Isono, Hironobu Yasuno, Kazuaki Enya, Emiko Koumura, Hiroshi Nagabukuro
This study aimed to evaluate the effects of combination therapy with a dipeptidyl peptidase-4 inhibitor, alogliptin, and a peroxisome proliferator-activated receptor-γ agonist, pioglitazone, in a preclinical model of nonalcoholic steatohepatitis using low-density lipoprotein receptor-knockout mice fed a modified choline-deficient l-amino acid-defined diet. Monotherapy with either alogliptin (10-200 mg/kg) or pioglitazone (6-20 mg/kg) significantly decreased hepatic triglyceride content and fibrosis. The concomitant treatment of alogliptin (30 mg/kg), pioglitazone (20 mg/kg) also decreased hepatic triglyceride and hepatic collagen-I mRNA at greater extent compared to monotherapy...
February 8, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29428667/silybum-marianum-oil-attenuates-hepatic-steatosis-and-oxidative-stress-in-high-fat-diet-fed-mice
#9
Shu Yun Zhu, Ning Jiang, Jing Yang, Jie Tu, Yue Zhou, Xiang Xiao, Ying Dong
In the present study, the effects of Silybum marianum oil (SMO) on hepatic steatosis and oxidative stress were investigated during the development of nonalcoholic fatty liver disease (NAFLD) in high fat diet (HFD)-fed mice. The results showed that body weight, fat mass, and serum biochemical parameters such as triglyceride, free fatty acid, glucose and insulin were reduced by SMO treatment. Meanwhile, SMO decreased the histological injury of liver and the levels of hepatic triglyceride, cholesterol and free fatty acid in HFD-fed mice...
February 8, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29427497/diagnosis-of-non-alcoholic-fatty-liver-disease-non-alcoholic-steatohepatitis-why-liver-biopsy-is-essential
#10
REVIEW
Pierre Bedossa
The pattern of non-alcoholic fatty liver disease is complex with an association of several lesions, each of them related to different pathophysiological mechanisms. Despite the progress in non-invasive tools, liver biopsy remains the only diagnostic procedure that can reliably assess these various patterns, their related severity and associations. The most important difficulties of liver biopsy can be avoided if this procedure is performed by an experienced hepatologist and read by a liver pathologist. However, for obvious reasons, biopsy should be restricted to selected patients, especially in the context of clinical trials...
February 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29426937/ultraconserved-element-uc-372-drives-hepatic-lipid-accumulation-by-suppressing-mir-195-mir4668-maturation
#11
Jun Guo, Weiwei Fang, Libo Sun, Yonggang Lu, Lin Dou, Xiuqing Huang, Weiqing Tang, Liqing Yu, Jian Li
Ultraconserved (uc) RNAs, a class of long non-coding RNAs (lncRNAs), are conserved across humans, mice, and rats, but the physiological significance and pathological role of ucRNAs is largely unknown. Here we show that uc.372 is upregulated in the livers of db/db mice, HFD-fed mice, and NAFLD patients. Gain-of-function and loss-of-function studies indicate that uc.372 drives hepatic lipid accumulation in mice by promoting lipogenesis. We further demonstrate that uc.372 binds to pri-miR-195/pri-miR-4668 and suppresses maturation of miR-195/miR-4668 to regulate expression of genes related to lipid synthesis and uptake, including ACC, FAS, SCD1, and CD36...
February 9, 2018: Nature Communications
https://www.readbyqxmd.com/read/29424449/viral-eradication-reduces-both-liver-stiffness-and-steatosis-in-patients-with-chronic-hepatitis-c-virus-infection-who-received-direct-acting-anti-viral-therapy
#12
T Tada, T Kumada, H Toyoda, Y Sone, K Takeshima, S Ogawa, T Goto, A Wakahata, M Nakashima, M Nakamuta, J Tanaka
BACKGROUND: Whether direct-acting anti-viral therapy can reduce liver fibrosis and steatosis in patients with chronic hepatitis C virus (HCV) infection is unclear. AIMS: To evaluate changes in liver stiffness and steatosis in patients with HCV who received direct-acting anti-viral therapy and achieved sustained virological response (SVR). METHODS: A total of 198 patients infected with HCV genotype 1 or 2 who achieved SVR after direct-acting anti-viral therapy were analysed...
February 9, 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29423877/nhlrc2-variants-identified-in-patients-with-fibrosis-neurodegeneration-and-cerebral-angiomatosis-finca-characterisation-of-a-novel-cerebropulmonary-disease
#13
Johanna Uusimaa, Riitta Kaarteenaho, Teija Paakkola, Hannu Tuominen, Minna K Karjalainen, Javad Nadaf, Teppo Varilo, Meri Uusi-Mäkelä, Maria Suo-Palosaari, Ilkka Pietilä, Anniina E Hiltunen, Lloyd Ruddock, Heli Alanen, Ekaterina Biterova, Ilkka Miinalainen, Annamari Salminen, Raija Soininen, Aki Manninen, Raija Sormunen, Mika Kaakinen, Reetta Vuolteenaho, Riitta Herva, Päivi Vieira, Teija Dunder, Hannaleena Kokkonen, Jukka S Moilanen, Heikki Rantala, Lawrence M Nogee, Jacek Majewski, Mika Rämet, Mikko Hallman, Reetta Hinttala
A novel multi-organ disease that is fatal in early childhood was identified in three patients from two non-consanguineous families. These children were born asymptomatic but at the age of 2 months they manifested progressive multi-organ symptoms resembling no previously known disease. The main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. In the affected children, neuropathology revealed increased angiomatosis-like leptomeningeal, cortical and superficial white matter vascularisation and congestion, vacuolar degeneration and myelin loss in white matter, as well as neuronal degeneration...
February 8, 2018: Acta Neuropathologica
https://www.readbyqxmd.com/read/29422939/associations-between-fatty-acid-oxidation-hepatic-mitochondrial-function-and-plasma-acylcarnitine-levels-in-mice
#14
Bodil Bjørndal, Eva Katrine Alterås, Carine Lindquist, Asbjørn Svardal, Jon Skorve, Rolf K Berge
Background: The 4-thia fatty acid tetradecylthiopropionic acid (TTP) is known to inhibit mitochondrial β-oxidation, and can be used as chemically induced hepatic steatosis-model in rodents, while 3-thia fatty acid tetradecylthioacetic acid (TTA) stimulates fatty acid oxidation through activation of peroxisome proliferator activated receptor alpha (PPARα). We wished to determine how these two compounds affected in vivo respiration and mitochondrial efficiency, with an additional goal to elucidate whether mitochondrial function is reflected in plasma acylcarnitine levels...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29421579/polyphenol-enriched-extract-of-rosa-rugosa-thunb-regulates-lipid-metabolism-in-diabetic-rats-by-activation-of-ampk-pathway
#15
Liu Liu, Mireguli Yasen, Dan Tang, Jianping Ye, Haji Akber Aisa, Xuelei Xin
This study was designed to investigate the mechanism of polyphenol-enriched extract of Rosa rugosa Thunb (RPE) in the control of dyslipidemia in diabetic rats. RPE was tested at three dosages (37.5 mg/kg, 75 mg/kg and 150 mg/kg) in the rat dyslipidemia model established with high fat diet feeding in combination with STZ injection (30 mg/kg). The RPE effect was evaluated after 4 weeks of treatment. In the RPE-treated rats, hepatic total cholesterol (TC) and triglyceride (TG) were significantly reduced, lipoprotein lipase (LPL) and liver lipase (HL) were significantly increased...
February 5, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29421523/maraviroc-improves-hepatic-triglyceride-content-but-not-inflammation-in-a-murine-nonalcoholic-fatty-liver-disease-model-induced-by-a-chronic-exposure-to-high-fat-diet
#16
Laura Pérez-Martínez, Laura Ochoa-Callejero, Susana Rubio-Mediavilla, Judit Narro, Iván Bernardo, José-Antonio Oteo, José-Ramón Blanco
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the general population. Its severity ranges from simple steatosis to cirrhosis. C-C chemokine ligand type 5 or RANTES plays an important role in the progression of hepatic inflammation and fibrosis. Our objective was to examine the preventive and therapeutic effects of maraviroc (MVC), a C-C chemokine receptor 5 antagonist, on liver pathology in an NAFLD mouse model. A total of 60 male C57BL/6 mice were randomly assigned to 1 of 4 groups: (1) high-fat diet (HFD) group or control group, (2) preventive group (HFD group plus MVC in drinking water since the beginning of the study), (3) early-therapeutic group (HFD group plus MVC in drinking starting at week 24 of the study), and (4) late-therapeutic group (HFD group plus MVC in drinking water starting at week 36 of the study)...
January 31, 2018: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29420235/loss-of-mitochondrial-protease-clpp-protects-mice-from-diet-induced-obesity-and-insulin-resistance
#17
Shylesh Bhaskaran, Gavin Pharaoh, Rojina Ranjit, Ashley Murphy, Satoshi Matsuzaki, Binoj C Nair, Brittany Forbes, Suzana Gispert, Georg Auburger, Kenneth M Humphries, Michael Kinter, Timothy M Griffin, Sathyaseelan S Deepa
Caseinolytic peptidase P (ClpP) is a mammalian quality control protease that is proposed to play an important role in the initiation of the mitochondrial unfolded protein response (UPRmt), a retrograde signaling response that helps to maintain mitochondrial protein homeostasis. Mitochondrial dysfunction is associated with the development of metabolic disorders, and to understand the effect of a defective UPRmt on metabolism, ClpP knockout (ClpP-/-) mice were analyzed. ClpP-/- mice fed ad libitum have reduced adiposity and paradoxically improved insulin sensitivity...
February 2, 2018: EMBO Reports
https://www.readbyqxmd.com/read/29419350/swim-exercise-training-ameliorates-hepatocyte-ultrastructural-alterations-in-rats-fed-on-a-high-fat-and-sugar-diet
#18
Mohammed A Dallak, Ismaeel Bin-Jaliah, Alia Albawardi, Mohamed A Haidara, Hussein F Sakr, Refaat A Eid, W N Hassan, Bahjat Al-Ani
Excessive consumption of carbohydrate and fat increases the risk of liver disease. We hypothesized that swim exercise can protect hepatocytes from ultra-structural damage induced by high cholesterol and fructose diets (HCFD). Rats were either fed with HCFD (model group) or a standard laboratory chow (control group) for 15 weeks before being sacrificed. Swim exercise trained rats started the treatment from the 11th week until the sacrifice day, end of week 15. Blood samples were assayed for biomarkers of liver injury and adiponectin...
February 8, 2018: Ultrastructural Pathology
https://www.readbyqxmd.com/read/29416063/ahr-and-shp-regulate-phosphatidylcholine-and-s-adenosylmethionine-levels-in-the-one-carbon-cycle
#19
Young-Chae Kim, Sunmi Seok, Sangwon Byun, Bo Kong, Yang Zhang, Grace Guo, Wen Xie, Jian Ma, Byron Kemper, Jongsook Kim Kemper
Phosphatidylcholines (PC) and S-adenosylmethionine (SAM) are critical determinants of hepatic lipid levels, but how their levels are regulated is unclear. Here, we show that Pemt and Gnmt, key one-carbon cycle genes regulating PC/SAM levels, are downregulated after feeding, leading to decreased PC and increased SAM levels, but these effects are blunted in small heterodimer partner (SHP)-null or FGF15-null mice. Further, aryl hydrocarbon receptor (AhR) is translocated into the nucleus by insulin/PKB signaling in the early fed state and induces Pemt and Gnmt expression...
February 7, 2018: Nature Communications
https://www.readbyqxmd.com/read/29414781/maresin-1-attenuates-nafld-by-suppression-of-endoplasmic-reticulum-stress-via-ampk-serca2b-pathway
#20
Tae Woo Jung, Hyoung-Chun Kim, A M Abd El-Aty, Ji Hoon Jeong
Maresin 1 (MAR1), which is derived from docosahexaenoic acid biosynthesized by macrophages, has been reported to improve insulin resistance. Recently, it has been documented that MAR1 could ameliorate inflammation and insulin resistance in obese mice. These findings led us to investigate the effects of MAR1 on hepatic lipid metabolism. We found that MAR1 could stimulate AMP-activated protein kinase (AMPK), thereby augmenting sarcoendoplasmic reticulum (ER) Ca2+-ATPase 2b (SERCA2b) expression. This stimulation suppressed lipid accumulation by attenuating the ER stress in hepatocytes under hyperlipidemic conditions...
February 5, 2018: Journal of Biological Chemistry
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