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Cholestyramine

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https://www.readbyqxmd.com/read/28487440/cholestyramine-treatment-of-healthy-humans-rapidly-induces-transient-hypertriglyceridemia-when-treatment-is-initiated
#1
Beatrice Sjöberg, Sara Straniero, Bo Angelin, Mats Rudling
Bile acid (BA) production in mice is regulated by hepatic farnesoid X receptors and by intestinal fibroblast growth factor (FGF) 15, (in humans FGF19) a suppressor of BA synthesis that also reduces serum triglycerides and glucose. Cholestyramine treatment reduces FGF19 and induces BA synthesis while plasma triglycerides may increase of unclear reasons. We explored if FGF19 may suppress BA synthesis and plasma triglycerides in humans by modulation of FGF19 levels through long-term cholestyramine at increasing doses...
May 9, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28474246/pectin-penta-oligogalacturonide-suppresses-intestinal-bile-acids-absorption-and-downregulates-the-fxr-fgf15-axis-in-high-cholesterol-fed-mice
#2
Rugang Zhu, Yuting Hou, Yandi Sun, Tuoping Li, Jungang Fan, Gang Chen, Junxiu Wei
Haw pectin penta-oligogalacturonide (HPPS), purified from the hydrolysates of haw pectin, has important role in decreasing hepatic cholesterol accumulation and promoting bile acids (BA) excretion in the feces of mice fed a high-cholesterol diet (HCD). However, the mechanism is not clear. This study aims to investigate the effects of HPPS on BA reabsorption in ileum and biosynthesis in liver of mice. Results showed that HPPS increased fecal BA output by approximately 110%, but decreased ileal BA and the total BA pool size by approximately 47 and 36%, respectively, compared to HCD...
May 4, 2017: Lipids
https://www.readbyqxmd.com/read/28446519/cationic-polystyrene-resolves-nonalcoholic-steatohepatitis-nash-obesity-and-metabolic-disorders-by-promoting-eubiosis-of-gut-microbiota-and-decreasing-endotoxemia
#3
Airu Zhu, Jingjing Chen, Pengfei Wu, Mei Luo, Yilan Zeng, Han Zheng, Li Zhang, Zishou Cheng, Qun Sun, Wenwen Li, Yixiang Duan, Danmei Su, Zhixiong Xiao, Zhongping Duan, Sujun Zheng, Li Bei, Xiaohui Zhang, Zhongyuan Ju, Richard Hu, Stephen J Pandol, Yuan-Ping Han
A pandemic of metabolic diseases, consisting of type-2 diabetes, non-alcoholic fatty liver diseases (NAFLD) and obesity, has imposed critical challenges for societies worldwide, prompting investigation of underlying mechanisms and exploration of low cost and effective treatment. In this report, we demonstrate that metabolic disorders in mice generated by feeding with a high-fat diet without dietary vitamin D (HD) can be prevented by oral administration of polycationic amine resin. Oral administration of cholestyramine , but not the control uncharged polystyrene, was able to sequester negatively charged bacterial endotoxin in the gut, leading to (1) reducing plasma endotoxin levels, (2) resolving systemic inflammation and hepatic steatohepatitis,and (3) improving insulin sensitivity...
April 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28407899/in-vitro-evaluation-of-whole-faba-bean-and-its-seed-coat-as-a-potential-source-of-functional-food-components
#4
Selen Çalışkantürk Karataş, Demet Günay, Sedat Sayar
In vitro studies were conducted to evaluate the particular nutritional benefits of whole faba bean seed (WFB) and fava bean seed coat (FBSC). Total dietary fiber contents of WFB and FBSC were 27.5% and 82.3%, respectively. FBSC were contained much higher total phenolic substances, condensed tannins, and total antioxidant activity than WFB. Bile acid (BA)-binding capacities of in vitro digested samples and nutritionally important products produced by in vitro fermentation of digestion residues were also studied...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28380377/farnesoid-x-receptor-regulation-of-the-nlrp3-inflammasome-underlies-cholestasis-associated-sepsis
#5
Haiping Hao, Lijuan Cao, Changtao Jiang, Yuan Che, Songyang Zhang, Shogo Takahashi, Guangji Wang, Frank J Gonzalez
Cholestasis is a common complication of sepsis, and the increased plasma levels of bile acids are predictive of sepsis-associated mortality. However, the exact mechanism by which cholestasis aggravates sepsis development remains elusive. Here, we show that bile acids are danger-associated molecular patterns (DAMPs) that can activate both signal 1 and 2 of the NLRP3 inflammasome in inflammatory macrophages. Mechanistically, bile acids induce a prolonged calcium influx and activate the NLRP3 inflammasome synergistically with ATP...
April 4, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28376607/statin-utilization-improves-oncologic-and-survival-outcomes-in-patients-with-dyslipidemia-and-surgically-treated-renal-cell-carcinoma
#6
Sean W Berquist, Hak J Lee, Zachary Hamilton, Aditya Bagrodia, Abdelrahman Hassan, Alp T Beksaç, Catherine A Dufour, Song Wang, Reza Mehrazin, Anthony Patterson, Ithaar H Derweesh
BACKGROUND: We evaluated the role of statins in patients who underwent surgery for Renal Cell Carcinoma (RCC) and who had dyslipidemia, as use of statins has been suggested to improve outcomes in RCC. METHODS: Two-center retrospective study of patients with dyslipidemia who underwent surgery for RCC from 7/1995 to 6/2005. Patients were managed by statins or ezetimibe, fibrate agents, or cholestyramine. Analysis was conducted between patients who received statin therapy versus those that did not...
March 30, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28348902/atypical-complications-of-graves-disease-a-case-report-and-literature-review
#7
Khaled Ahmed Baagar, Mashhood Ahmed Siddique, Shaimaa Ahmed Arroub, Ahmed Hamdi Ebrahim, Amin Ahmed Jayyousi
Graves' disease (GD) may display uncommon manifestations. We report a patient with rare complications of GD and present a comprehensive literature review. A 35-year-old woman presented with a two-week history of dyspnea, palpitations, and edema. She had a raised jugular venous pressure, goiter, and exophthalmos. Laboratory tests showed pancytopenia, a raised alkaline phosphatase level, hyperbilirubinemia (mainly direct bilirubin), and hyperthyroidism [TSH: <0.01 mIU/L (reference values: 0.45-4.5), fT4: 54...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28345673/sex-dependent-effects-on-gut-microbiota-regulate-hepatic-carcinogenic-outcomes
#8
Guoxiang Xie, Xiaoning Wang, Aihua Zhao, Jingyu Yan, Wenlian Chen, Runqiu Jiang, Junfang Ji, Fengjie Huang, Yunjing Zhang, Sha Lei, Kun Ge, Xiaojiao Zheng, Cynthia Rajani, Rosanna A Alegado, Jiajian Liu, Ping Liu, Jeremy Nicholson, Wei Jia
Emerging evidence points to a strong association between sex and gut microbiota, bile acids (BAs), and gastrointestinal cancers. Here, we investigated the mechanistic link between microbiota and hepatocellular carcinogenesis using a streptozotocin-high fat diet (STZ-HFD) induced nonalcoholic steatohepatitis-hepatocellular carcinoma (NASH-HCC) murine model and compared results for both sexes. STZ-HFD feeding induced a much higher incidence of HCC in male mice with substantially increased intrahepatic retention of hydrophobic BAs and decreased hepatic expression of tumor-suppressive microRNAs...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28288854/irinotecan-induced-bile-acid-malabsorption-is-associated-with-down-regulation-of-ileal-asbt-slc10a2-in-mice
#9
A-Xi Shi, Yan Zhou, Xiao-Yi Zhang, Yan-Shu Zhao, Hong-Yan Qin, Yan-Ping Wang, Xin-An Wu
Irinotecan, (CPT-11), an antitumor agent primarily used for the treatment of solid tumors, has often compromised clinical application due to the inducement of severe delay-onset diarrhea. Bile acid malabsorption (BAM) is widely accepted as the common cause of diarrhea. However, whether CPT-11-induced diarrhea has correlation with BAM is unknown. The aim of this study was to investigate the effect of CPT-11 on the bile acid homeostasis in mice. The mice were administrated with CPT-11 intravenously for four consecutive days...
March 10, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28275691/targeting-the-enterohepatic-bile-acid-signaling-induces-hepatic-autophagy-via-a-cyp7a1-akt-mtor-axis-in-mice
#10
Yifeng Wang, Yifeng Ding, Jibiao Li, Hemantkumar Chavan, David Matye, Hong-Min Ni, John Y L Chiang, Partha Krishnamurthy, Wen-Xing Ding, Tiangang Li
BACKGROUND & AIMS: Hepatic cholesterol accumulation and autophagy defects contribute to hepatocyte injury in fatty liver disease. Bile acid synthesis is a major pathway for cholesterol catabolism in the liver. This study aims to understand the molecular link between cholesterol and bile acid metabolism and hepatic autophagy activity. METHODS: The effects of cholesterol and cholesterol 7α-hydroxylase (CYP7A1) expression on autophagy and lysosome function were studied in cell models...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28270045/evaluation-of-the-efficacy-of-octreotide-lar-in-the-treatment-of-crohn-s-disease-associated-refractory-diarrhea
#11
Laura Martelli, Arnaud Colard, Fernand Fontaine, Jacques Deflandre, Boris Bastens, Edouard Louis
OBJECTIVES: Diarrhea is one of the main symptoms of Crohn's disease (CD). It is usually significantly improved with specific CD treatments, loperamide or cholestyramine. However, in some cases, diarrhea becomes refractory. The aim of this study was to assess the safety and efficacy of octreotide in this situation. MATERIALS AND METHODS: Fifteen patients with CD refractory diarrhea defined by at least an average of five smooth or liquid stools per day despite an optimized CD treatment were included from three Belgian centers...
May 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28238692/management-of-pruritus-in-primary-biliary-cholangitis-a-narrative-review
#12
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 that 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 performed 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 24, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28199789/cholesterol-lowering-activity-of-tartary-buckwheat-protein
#13
Chengnan Zhang, Rui Zhang, Yuk Man Li, Ning Liang, Yimin Zhao, Hanyue Zhu, Zouyan He, Jianhui Liu, Wangjun Hao, Rui Jiao, Ka Ying Ma, Zhen-Yu Chen
Previous research has shown that Tartary buckwheat flour is capable of reducing plasma cholesterol. The present study was to examine the effect of rutin and Tartary buckwheat protein on plasma total cholesterol (TC) in hypercholesterolemia hamsters. In the first animal experiment, 40 male hamsters were divided into four groups fed either the control diet or one of the three experimental diets containing 8.2 mmol rutin, 8.2 mmol quercetin, or 2.5 g kg(-1) cholestyramine, respectively. Results showed that only cholestyramine but not rutin and its aglycone quercetin decreased plasma TC, which suggested that rutin was not the active ingredient responsible for plasma TC-lowering activity of Tartary buckwheat flour...
February 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28153426/factors-affecting-gastrointestinal-absorption-of-levothyroxine-a-review
#14
REVIEW
Marko Skelin, Tomo Lucijanić, Daniela Amidžić Klarić, Arnes Rešić, Miro Bakula, Ana-Marija Liberati-Čizmek, Hossein Gharib, Dario Rahelić
PURPOSE: Levothyroxine (LT4) is a drug with a narrow therapeutic index, applied in small amounts (micrograms), which makes interactions in the absorption phase clinically significant. The main aim of this article was to review and present the latest information on factors that affect the gastrointestinal absorption of this drug. METHODS: Relevant data were collected by using the MEDLINE, PubMed, EMBASE, Web of Science, Science Direct, and Scopus databases with the key words levothyroxine and absorption...
February 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28067465/cholestyramine-alters-bile-acid-amounts-and-the-expression-of-cholesterol-related-genes-in-rabbit-intestinal-and-hepatic-tissues
#15
Dong Ni Qiu, Quan Shang, Da Yu Sun, Wei Qun Ding, Zhong Guang Luo, Jian Chen, Wei Ru Jiang, Jian Ping Huang, Xiao Yun Jiang
OBJECTIVE: Cholestyramine (CHO), as a bile acid sequestering exchange resin, has been widely used to treat hypercholesterolemia. The aim of this study was to explore how CHO regulated serum cholesterol amounts and bile acid levels in animal models. METHODS: New Zealand White rabbits were randomly assigned to the control (given distilled water) and CHO-treated (given CHO solution 1 g/kg per day for 2 weeks) groups. To assess bile acid pool size, bile fistulas were constructed in five rabbits in each group...
February 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28039331/hepatic-deletion-of-x-box-binding-protein-1-impairs-bile-acid-metabolism-in-mice
#16
Xiaoying Liu, Anne S Henkel, Brian E LeCuyer, Susan C Hubchak, Matthew J Schipma, Eric Zhang, Richard M Green
The unfolded protein response (UPR) is an adaptive response to endoplasmic reticulum stress and the inositol-requiring enzyme 1α/X-box binding protein 1 (IRE1α/XBP1) pathway of the UPR is important in lipid metabolism. However, its role in bile acid metabolism remains unknown. We demonstrate that liver-specific Xbp1 knockout (LS-Xbp1(-/-)) mice had a 45% reduction in total bile acid pool. LS-Xbp1(-/-) mice had lower serum 7α-hydroxy-4-cholesten-3-one (C4) levels compared with Xbp1(fl/fl) mice, indicating reduced cholesterol 7α-hydroxylase (CYP7A1) synthetic activity...
March 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28028430/a-child-with-debilitating-pruritus
#17
Nikhil Sonthalia, Samit S Jain, Vinay B Pawar, Vinay G Zanwar, Ravindra G Surude, Pravin M Rathi, Kshitij K Munde, Sandeep Bavdekar
We describe a case of two-year-old boy presenting with debilitating pruritus, patchy alopecia and jaundice since the age of 6 months. On evaluation he had intrahepatic cholestasis with persistently raised serum alkaline phosphatase, normal Gamma glutamyl transferase and raised serum bile acid levels. His liver biopsy showed bland cholestasis and electron microscopy showed granular bile suggestive of progressive familial intrahepatic cholestasis type I. Medical therapy with ursodeoxycholic acid, cholestyramine, rifampicin with nutritional modification was successful in alleviating the symptoms and correcting the nutritional status...
October 24, 2016: Clinics and Practice
https://www.readbyqxmd.com/read/27921051/systemic-mastocytosis-causing-refractory-pruritus-in-a-liver-disease-patient
#18
Naga S Addepally, Jagpal S Klair, Mohit Girotra, Johnny Jones, Farshad Aduli
Systemic mastocytosis (SM) results from clonal, neoplastic proliferation of abnormal mast cells. Patients become susceptible to itching, urticaria, and anaphylactic shock, which occurs due to histamine release from mast cells. SM may coexist alongside other systemic diseases, thus confounding the overall clinical presentation. We discuss a 23-year-old woman with refractory pruritus, which was initially attributed to primary sclerosing cholangitis but had a nonresponse to antihistaminics, ursodiol, and cholestyramine...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27888342/putting-recommendations-into-practice-australian-rheumatologists-opinions-on-leflunomide-use-in-rheumatoid-arthritis
#19
Ashley M Hopkins, Michael D Wiese, Catherine E O'Doherty, Susanna M Proudman
Leflunomide is the most recently introduced conventional disease-modifying anti-rheumatic drugs in Australia. It has several unique methods for initiation, unique monitoring recommendations and a distinctive cessation protocol in the event of serious toxicity. The aim of this study was to evaluate initiation and monitoring practices of Australian rheumatologists using leflunomide. A survey was emailed twice, approximately 3 months apart to 332 rheumatologist members of the Australian Rheumatology Association...
November 25, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27884451/cholesterol-lowering-pattern-affects-the-progression-of-atherosclerosis-in-apolipoprotein-e-deficient-mice
#20
Yusuke Masuda, Shinji Yamaguchi, Tomohiro Nishizawa
Although the importance of LDL cholesterol lowering is widely recognized, the impact of the cholesterol-lowering pattern on the atherosclerosis remains unclear. Here, we used cholestyramine in apolipoprotein E deficient mice in two different regimens to induce a see-saw shaped or a sustained cholesterol reduction, with the trough of cholesterol comparable. After 12 weeks-treatment, a sustained cholesterol reduction exhibited a smaller atherosclerotic area. Moreover, we observed a correlation between the area under the curve of plasma cholesterol and the atherosclerotic area...
December 2016: Journal of Pharmacological Sciences
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