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https://www.readbyqxmd.com/read/28332230/screening-and-identification-of-multiple-constituents-and-their-metabolites-of-zhi-zi-chi-decoction-in-rat-urine-and-bile-by-uplc-q-tof-ms-ms
#1
Wei Feng, Qiuju Dong, Minyan Liu, Si Li, Ting Liu, Xinguo Wang, Liying Niu
Zhi-zi-chi decoction (ZZCD) is a classical formula widely used in Chinese clinical application. In the present study, a novel and efficient strategy has been developed for screening and identification of multiple constituents and their metabolites of ZZCD using ultra high performance liquid chromatography combined with triple TOF mass spectrometry. The novel approach of an on-line data acquisition method dependent on multiple mass defect filter and dynamic background subtraction is combined with multiple data processing techniques...
March 23, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28330995/hepatic-fcrn-regulates-albumin-homeostasis-and-susceptibility-to-liver-injury
#2
Michal Pyzik, Timo Rath, Timothy T Kuo, Sanda Win, Kristi Baker, Jonathan J Hubbard, Rosa Grenha, Amit Gandhi, Thomas D Krämer, Adam R Mezo, Zachary S Taylor, Kevin McDonnell, Vicki Nienaber, Jan Terje Andersen, Atsushi Mizoguchi, Laurence Blumberg, Shalaka Purohit, Susan D Jones, Greg Christianson, Wayne I Lencer, Inger Sandlie, Neil Kaplowitz, Derry C Roopenian, Richard S Blumberg
The neonatal crystallizable fragment receptor (FcRn) is responsible for maintaining the long half-life and high levels of the two most abundant circulating proteins, albumin and IgG. In the latter case, the protective mechanism derives from FcRn binding to IgG in the weakly acidic environment contained within endosomes of hematopoietic and parenchymal cells, whereupon IgG is diverted from degradation in lysosomes and is recycled. The cellular location and mechanism by which FcRn protects albumin are partially understood...
March 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28323811/obeticholic-acid-ocaliva-for-primary-biliary-cholangitis
#3
(no author information available yet)
No abstract text is available yet for this article.
March 27, 2017: Medical Letter on Drugs and Therapeutics
https://www.readbyqxmd.com/read/28321334/the-interpretation-of-cholesterol-balance-derived-synthesis-data-and-surrogate-noncholesterol-plasma-markers-for-cholesterol-synthesis-under-lipid-lowering-therapies
#4
REVIEW
Frans Stellaard, Dieter Lütjohann
The cholesterol balance procedure allows the calculation of cholesterol synthesis based on the assumption that loss of endogenous cholesterol via fecal excretion and bile acid synthesis is compensated by de novo synthesis. Under ezetimibe therapy hepatic cholesterol is diminished which can be compensated by hepatic de novo synthesis and hepatic extraction of plasma cholesterol. The plasma lathosterol concentration corrected for total cholesterol concentration (R_Lath) as a marker of de novo cholesterol synthesis is increased during ezetimibe treatment but unchanged under treatment with ezetimibe and simvastatin...
2017: Cholesterol
https://www.readbyqxmd.com/read/28302491/bile-acids-and-their-receptors-during-liver-regeneration-dangerous-protectors
#5
REVIEW
Merlen Grégory, Ursic-Bedoya José, Jourdainne Valeska, Kahale Nicolas, Mathilde Glenisson, Doignon Isabelle, Dominique Rainteau, Thierry Tordjmann
Tissue repair is orchestrated by a finely tuned interplay between processes of regeneration, inflammation and cell protection, allowing organisms to restore their integrity after partial loss of cells or organs. An important, although largely unexplored feature is that after injury and during liver repair, liver functions have to be maintained to fulfill the peripheral demand. This is particularly critical for bile secretion, which has to be finely modulated in order to preserve liver parenchyma from bile-induced injury...
March 13, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28301142/manganese-complex-of-ethylenediaminetetraacetic-acid-edta-benzothiazole-aniline-bta-conjugate-as-a-potential-liver-targeting-mri-contrast-agent
#6
Md Kamrul Islam, Soyeon Kim, Hee-Kyung Kim, Subin Park, Gang-Ho Lee, Hyo Jeung Kang, Jae-Chang Jung, Joon-Suk Park, Tae-Jeong Kim, Yongmin Chang
A novel manganese(II) complex based on an ethylenediaminetetraacetic acid (EDTA) coordination cage bearing a benzothiazole aniline (BTA) moiety (Mn-EDTA-BTA) was designed and synthesized for use as a liver-specific MRI contrast agent with high chelation stability. In addition to forming a hydrophilic, stable complex with Mn(2+), this new Mn chelate was rapidly taken up by liver hepatocytes and excreted by the kidneys and biliary system. The kinetic inertness and R1 relaxivity of the complex were much higher than those of mangafodipir trisodium (MnDPDP), a clinically approved liver-specific MRI contrast agent...
March 22, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28297794/-research-advances-in-autoimmune-liver-diseases-in-2016
#7
B Li, Q X Wang, X Ma
Autoimmune liver diseases are a group of abnormal autoimmune-mediated inflammatory hepatobiliary injuries, mainly including autoimmune hepatitis(AIH), primary biliary cholangitis(PBC), and primary sclerosing cholangitis (PSC). The diagnosis and treatment of autoimmune liver diseases, an important type of non-viral liver disease, have become a prominent issue in hepatology. In 2016, many new advances have been achieved in the clinical and basic research on autoimmune liver diseases, including the phase 3 clinical trial of obeticholic acid, the proposal of UK-PBC risk score, and the research on gut microbiota associated with PSC...
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28283178/activation-of-constitutive-androstane-receptor-prevents-cholesterol-gallstone-formation
#8
Shihai Cheng, Min Zou, Qinhui Liu, Jiangying Kuang, Jing Shen, Shiyun Pu, Lei Chen, Hong Li, Tong Wu, Rui Li, Yanping Li, Wei Jiang, Zhiyong Zhang, Jinhan He
Cholesterol gallstone disease (CGD) is one of the most common gastrointestinal diseases. Lithogenic hepatic bile secretion precedes the formation of cholesterol gallstones. Constitutive androstane receptor (CAR), a member of nuclear family, plays an important role in cholesterol and bile acid metabolism. To examine whether activation of CAR can prevent cholesterol gallstone formation, we treated C57BL6/J mice maintained on a lithogenic diet with CAR agonist 1,4-bis-[2-(3, 5-dichlorpyridyloxy)] benzene and performed bile duct cannulation to study the dynamics of biliary lipids...
March 6, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28267673/paeoniflorin-attenuates-anit-induced-cholestasis-by-inhibiting-apoptosis-in-vivo-via-mitochondria-dependent-pathway
#9
Hou-Qin Zhou, Wei Liu, Jian Wang, Yin-Qiu Huang, Peng-Yan Li, Yun Zhu, Jia-Bo Wang, Xiao Ma, Rui-Sheng Li, Shi-Zhang Wei, Kun Li, Hao-Tian Li, Jian-Yu Li, Xiao-He Xiao, Yan-Ling Zhao
Apoptosis induced by the bile acids in the liver is considered to play a pivotal role in the pathogenesis of cholestatic disease. Increasing evidence has demonstrated that Paeoniflorin (PF) exerts therapeutic effect on severe cholestatic liver diseases. However, whether PF could protect against alpha-naphthylisothiocyanate (ANIT)-induced cholestasis by inhibiting apoptosis remains unclear. In this study, we mainly investigated the effect and anti-apoptosis mechanism of PF on cholestasis. Experimental results indicated that PF pretreatment could attenuate liver damage and cholestasis by ANIT in rats, lift the biliary excretion in addition to decrease serum indices (ALT, AST, DBIL, TBIL, TBA, ALP and ϒ-GT) and conspicuous neutrophil infiltration and cell apoptosis in liver evidenced by TUNEL staining...
March 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28255561/genetic-contribution-to-the-pathogenesis-of-primary-biliary-cholangitis
#10
REVIEW
Satoru Joshita, Takeji Umemura, Eiji Tanaka, Masao Ota
Formerly termed primary biliary cirrhosis, primary biliary cholangitis (PBC) is a chronic and progressive cholestatic liver disease characterized by the presence of antimitochondrial antibodies. Ursodeoxycholic acid (UDCA) therapy is the most effective and approved treatment for PBC and leads to a favorable outcome in the vast majority of cases. Although the etiology of PBC has not yet been elucidated, human leukocyte antigen (HLA) class II alleles have been consistently associated with disease onset for decades...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28250026/foxo3-increases-mir-34a-to-cause-palmitate-induced-cholangiocyte-lipoapoptosis
#11
Sathish Kumar Natarajan, Bailey A Stringham, Ashley M Mohr, Cody J Wehrkamp, Sizhao Lu, Mary Anne Phillippi, Dee Harrison-Findik, Justin L Mott
Non-alcoholic steatohepatitis (NASH) patients have elevated plasma saturated free fatty acid levels. These toxic fatty acids can induce liver cell death and our recent results demonstrated that the biliary epithelium may be susceptible to lipotoxicity. Here, we explored the molecular mechanisms of cholangiocyte lipoapoptosis in cell culture and in an animal model of NASH. Treatment of cholangiocytes with palmitate showed increased caspase-3/7 activity, and increased levels of cleaved PARP and cleaved caspase 3 demonstrating cholangiocyte lipoapoptosis...
March 1, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28249274/the-emerging-role-of-soluble-adenylyl-cyclase-in-primary-biliary-cholangitis
#12
Jung-Chin Chang, Ulrich Beuers, Ronald P J Oude Elferink
BACKGROUND: Primary biliary cholangitis (PBC; previously referred to as primary biliary cirrhosis) is a chronic fibrosing cholangiopathy with the signature of an autoimmune disease and features of intrahepatic cholestasis. Immunosuppressing treatments are largely unsuccessful. Responsiveness to ursodeoxycholic acid and reduced expression of anion exchanger 2 (AE2) on canalicular membranes and small bile ducts underline the importance of bicarbonate transportation in its disease mechanism...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28249264/bile-acids-and-deregulated-cholangiocyte-autophagy-in-primary-biliary-cholangitis
#13
Motoko Sasaki, Yasuni Nakanuma
BACKGROUND: Primary biliary cholangitis (PBC) is characterized by a high prevalence of serum anti-mitochondrial antibodies against the E2 subunit of the pyruvate dehydrogenase complex and bile duct lesions called chronic non-suppurative destructive cholangitis (CNSDC) in small bile ducts, eventually followed by extensive bile duct loss and biliary cirrhosis. Macroautophagy (a major type of autophagy) is a process of cellular self-digestion that plays a critical role in energy homeostasis and in the cytoprotection to various stresses...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28249258/apical-sodium-dependent-transporter-inhibitors-in-primary-biliary-cholangitis-and-primary-sclerosing-cholangitis
#14
Vinod S Hegade, David E J Jones, Gideon M Hirschfield
Bile acids (BAs) have gained mainstream attention since the discovery of their key role as signalling molecules in health and disease. The apical sodium-dependent transporter (ASBT) protein located in the terminal ileum plays an important physiological role in the enterohepatic circulation of BAs and therefore essential for the BA homeostasis. Primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC), the 2 most common cholestatic liver diseases are characterised by altered BA flow and BA composition, which contribute to disease progression and symptom (pruritus) development...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28242458/hepatotoxicity-and-metabolic-effects-of-cellular-extract-of-cyanobacterium-radiocystis-fernandoi-containing-microcystins-rr-and-yr-on-neotropical-fish-hoplias-malabaricus
#15
Marcelo Gustavo Paulino, Priscila Adriana Rossi, Francine Perri Venturini, Driele Tavares, Naiara Elisabete da Silva Souza, Marise Margareth Sakuragui, Gilberto Moraes, Ana Paula Terezan, João Batista Fernandes, Alessandra Giani, Marisa Narciso Fernandes
The toxicological effect of cellular extract of cyanobacterium Radiocystis fernandoi strain R28 containing RR and YR microcystins was analyzed in the fish Hoplias malabaricus with emphasis on the liver structure and energetic metabolism, after short-term exposure. Fish were intraperitoneally (i.p.) injected with 100 μg of equivalent MC-LR kg(-1) body mass containing in the cellular extract of R. fernandoi strain R28. Twelve and 96 h post-injection, the plasma, liver and white muscle were sampled for biochemical analyses and liver was also sampled for morphological analyses...
May 2017: Chemosphere
https://www.readbyqxmd.com/read/28240637/correlation-between-bile-reflux-gastritis-and-biliary-excreted-contrast-media-in-the-stomach
#16
Jong Jin Hyun, Suk Keu Yeom, Euddeum Shim, Jaehyung Cha, Inyoung Choi, Seung Hwa Lee, Hwan Hoon Chung, Sang Hoon Cha, Chang Hee Lee
OBJECTIVE: This study aimed to evaluate the relationship between biliary excreted contrast media in the stomach and the presence of bile reflux gastritis. METHODS: Consecutive 111 patients who underwent both gadoxetic acid-enhanced magnetic resonance cholangiography (gadoxetic MRC) and gastric endoscopy were included in this study. We performed a review of the gadoxetic-MRC image sets acquired 60 minutes after intravenous injection of contrast media and endoscopic images...
February 24, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28239402/high-cholesterol-diet-does-not-alter-gut-microbiota-composition-in-mice
#17
Lidiya G Dimova, Nikola Zlatkov, Henkjan J Verkade, Bernt Eric Uhlin, Uwe J F Tietge
INTRODUCTION: Western diet containing both saturated fat and cholesterol impairs cardio-metabolic health partly by modulating diversity and function of the microbiota. While diet containing only high fat has comparable effects, it is unclear how diets only enriched in cholesterol impact the microbiota. Therefore, we aimed to characterize the response of host and microbiota to a high cholesterol (HC) diet in mice susceptible to cardio-metabolic disease. METHODS: LDLR knockout mice received either 1...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28239322/intestinal-barrier-integrity-and-function-in-infants-with-cholestasis
#18
Nagla H Abu Faddan, Tahra M K Sherif, Omnia A Mohammed, Khalid A Nasif, Ebtesam M El Gezawy
BACKGROUND/AIMS: The safety of the human body is maintained by effective monitoring of the mucosal surface integrity and protection against potentially harmful compounds. This function of the gut called intestinal barrier function can be affected by cholestasis and the absence of bile in the intestinal lumen. We aimed to determine whether the gut barrier integrity is impaired in infants with cholestasis by evaluation of the intestinal fatty acid binding proteins (I-FABP) and ileal bile acid binding protein (I-BABP) as markers of intestinal epithelial cell damage and plasma D-lactate level as a marker of gut wall permeability...
January 2017: Intestinal Research
https://www.readbyqxmd.com/read/28238692/management-of-pruritus-in-primary-biliary-cholangitis-a-narrative-review
#19
REVIEW
Hirsh D Trivedi, Blanca Lizaola, Elliot B Tapper, Alan Bonder
Primary biliary cholangitis is an autoimmune condition characterized by destruction of intrahepatic bile ducts. It causes debilitating symptoms, which dramatically affect the patient's quality of life. Pruritus affects 60% to 70% of individuals with primary biliary cholangitis and leads to sleep disturbances, fatigue, depression and suicidal ideation. A complete search was done with studies from PubMed, EMBASE, Web of Science, Cochrane database, Countway library and CINAHL with specific search terms. This narrative review was prepared after a comprehensive literature review...
February 23, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28225291/-a-contribution-to-the-differential-diagnostics-of-sclerosing-cholangitides
#20
Martin Blaho, Petr Dítě, Martina Bojková, Martin Rydlo, Tomáš Kupka, Pavel Svoboda, Pavel Klvaňa, Arnošt Martínek
Sclerosing cholangitides represent a group of chronic biliary obstructive diseases which include primary sclerosing cholangitis (PSC), IgG4 associated sclerosing cholangitis (IgG4-SC) and secondary sclerosing cholangitis (SSC). The manifestations of the diseases are similar, but their asymptomatic course is also frequent. IgG4-SC belongs to the group of IgG4 associated diseases and it is the most frequently related to type 1 autoimmune pancreatitis. Diagnosing of IgG4-SC is based on typical histopathological images, shape changes revealed by diagnostic imaging, serological tests, concurrent impairment of other organs and response to therapy, where IgG4-SC responds well to treatment with corticoids, whereas the only possibility for the remaining units is endoscopic intervention or liver transplantation...
2017: Vnitr̆ní Lékar̆ství
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