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https://www.readbyqxmd.com/read/28202005/impact-of-gut-hormone-fgf-19-on-type-2-diabetes-and-mitochondrial-recovery-in-a-prospective-study-of-obese-diabetic-women-undergoing-bariatric-surgery
#1
Lucia Martinez de la Escalera, Ioannis Kyrou, Jana Vrbikova, Voitech Hainer, Petra Sramkova, Martin Fried, Milan K Piya, Sudhesh Kumar, Gyanendra Tripathi, Philip G McTernan
BACKGROUND: The ileal-derived hormone, fibroblast growth factor 19 (FGF-19), may promote weight loss and facilitate type-2 diabetes mellitus remission in bariatric surgical patients. We investigated the effect of different bariatric procedures on circulating FGF-19 levels and the resulting impact on mitochondrial health in white adipose tissue (AT). METHODS: Obese and type-2 diabetic women (n = 39, BMI > 35 kg/m(2)) undergoing either biliopancreatic diversion (BPD), laparoscopic greater curvature plication (LGCP), or laparoscopic adjustable gastric banding (LAGB) participated in this ethics approved study...
February 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28169840/bile-acid-disease-the-emerging-epidemic
#2
Ibironke Oduyebo, Michael Camilleri
PURPOSE OF REVIEW: Our objective was to review advances in bile acids in health and disease published in the last 2 years. Bile acid diarrhea (BAD) is recognized as a common cause of chronic diarrhea, and its recognition has been facilitated by development of new screening tests. RECENT FINDINGS: Primary BAD can account for 30% of cases of chronic diarrhea. The mechanisms leading to BAD include inadequate feedback regulation by fibroblast growth factor 19 (FGF-19) from ileal enterocytes, abnormalities in synthesis or degradation of proteins involved in FGF-19 regulation in hepatocytes and variations as a function of the bile acid receptor, TGR5 (GPBAR1)...
February 6, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28164555/continuous-hemodiafiltration-with-an-an69st-hemofilter-an69st-chdf-as-fgf-23-lowering-therapy
#3
Masafumi Yamato, Yusuke Minematsu, Yuta Ikemiya, Junichi Shibata, Junya Fujii, Takumi Minato, Sachie Miyagawa, Kaori Takaori, Yoko Tomiyama, Ikue Nagayama, Akira Wada, Takahito Ito, Hirotsugu Iwatani
BACKGROUND: Recent studies have shown that fibroblast growth factor-23 (FGF-23) is elevated not only in chronic kidney disease (CKD), but also in acute illnesses such as acute kidney injury, septic shock, and acute heart failure. FGF-23 would be not only a simple biomarker but also a direct toxic factor in acute illness. Therefore, lowering circulating FGF-23 levels in clinical practice would be an exciting and valuable interventional strategy. Continuous hemodiafiltration (CHDF) is often performed for the treatment of the aforementioned acute illnesses...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28130714/the-effect-of-nephrectomy-on-klotho-fgf-23-and-bone-metabolism
#4
Katarzyna Kakareko, Alicja Rydzewska-Rosolowska, Szymon Brzosko, Joanna Gozdzikiewicz-Lapinska, Ewa Koc-Zorawska, Pawel Samocik, Robert Kozlowski, Michal Mysliwiec, Beata Naumnik, Tomasz Hryszko
BACKGROUND: Increased concentration of fibroblast growth factor 23 (FGF-23) and decreased levels of soluble Klotho (sKL) are linked to negative clinical outcomes among patients with chronic kidney disease and acute kidney injury. Therefore, it is reasonable to hypothesize that GFR reduction caused by nephrectomy might alter mineral metabolism and induces adverse consequences. Whether nephrectomy due to urological indications causes derangements in FGF-23 and sKL has not been studied. The aim of the study was to evaluate the effect of acute GFR decline due to unilateral nephrectomy on bone metabolism, FGF-23 and sKL levels...
January 27, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28106545/the-alterations-of-serum-fgf-21-levels-metabolic-and-body-composition-in-early-breast-cancer-patients-receiving-adjuvant-endocrine-therapy
#5
Murat Akyol, Ahmet Alacacioglu, Leyla Demir, Yuksel Kucukzeybek, Yasar Yildiz, Zehra Gumus, Mete Kara, Tarik Salman, Umut Varol, Halil Taskaynatan, Utku Oflazoglu, Vedat Bayoglu, Mustafa Oktay Tarhan
BACKGROUND: In early breast cancer patients, the effects of hormonal therapy (tamoxifen and aromatase inhibitors) on plasma fibroblast growth factor 21 (FGF-21), lipid levels and body composition have not yet been investigated. Therefore, we aimed to analyze the relationship between FGF-21 and body composition as well as the effects of tamoxifen and aromatase inhibitors on plasma lipid levels, FGF-21, and body composition. METHODS: A total of 72 patients were treated with either tamoxifen or aromatase inhibitors due to their menopausal status after adjuvant radiotherapy...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28086917/resveratrol-regulates-neuro-inflammation-and-induces-adaptive-immunity-in-alzheimer-s-disease
#6
Charbel Moussa, Michaeline Hebron, Xu Huang, Jaeil Ahn, Robert A Rissman, Paul S Aisen, R Scott Turner
BACKGROUND: Treatment of mild-moderate Alzheimer's disease (AD) subjects (N = 119) for 52 weeks with the SIRT1 activator resveratrol (up to 1 g by mouth twice daily) attenuates progressive declines in CSF Aβ40 levels and activities of daily living (ADL) scores. METHODS: For this retrospective study, we examined banked CSF and plasma samples from a subset of AD subjects with CSF Aβ42 <600 ng/ml (biomarker-confirmed AD) at baseline (N = 19 resveratrol-treated and N = 19 placebo-treated)...
January 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28065787/intestinal-farnesoid-x-receptor-controls-transintestinal-cholesterol-excretion-in-mice
#7
Jan Freark de Boer, Marleen Schonewille, Marije Boesjes, Henk Wolters, Vincent W Bloks, Trijnie Bos, Theo H van Dijk, Angelika Jurdzinski, Renze Boverhof, Justina C Wolters, Jan A Kuivenhoven, Jan M van Deursen, Ronald P J Oude Elferink, Antonio Moschetta, Claus Kremoser, Henkjan J Verkade, Folkert Kuipers, Albert K Groen
BACKGROUND & AIMS: The role of the intestine in the maintenance of cholesterol homeostasis is increasingly recognized. Fecal excretion of cholesterol is the last step in the atheroprotective reverse cholesterol transport pathway, to which biliary and transintestinal cholesterol excretion (TICE) contribute. The mechanisms controlling the flux of cholesterol through the TICE pathway are, however, poorly understood. We aimed to identify mechanisms that regulate and stimulate TICE. METHODS: We performed studies with C57Bl/6J mice, as well as mice with intestine-specific knockout of the farnesoid X receptor (FXR), mice that express an FXR transgene specifically in the intestine, and ABCG8-knockout mice...
January 5, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28041926/chronic-over-expression-of-fibroblast-growth-factor-21-increases-bile-acid-biosynthesis-by-opposing-fgf15-19-action
#8
Jun Zhang, Jamila Gupte, Yan Gong, Jennifer Weiszmann, Yuan Zhang, Ki Jeong Lee, William G Richards, Yang Li
Pharmacological doses of fibroblast growth factor (FGF) 21 effectively normalize glucose, lipid and energy homeostasis in multiple animal models with many benefits translating to obese humans with type 2 diabetes. However, a role for FGF21 in the regulation of bile acid metabolism has not been reported. Herein, we demonstrate AAV-mediated FGF21 overexpression in mice increases liver expression of the key bile acid producing enzyme, Cyp7a1, resulting in an increased bile acid pool. Furthermore, in cholecystectomized mice, FGF21-mediated bile acid pool increase led to increased transit of bile acids into colon...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/27988457/in-vitro-and-in-vivo-activity-of-lucitanib-in-fgfr1-2-amplified-or-mutated-cancer-models
#9
Federica Guffanti, Rosaria Chilà, Ezia Bello, Massimo Zucchetti, Monique Zangarini, Laura Ceriani, Mariella Ferrari, Monica Lupi, Anne Jacquet-Bescond, Mike F Burbridge, Marie-Jeanne Pierrat, Giovanna Damia
The fibroblast growth factor receptor (FGFR) pathway has been implicated both as an escape mechanism from anti-angiogenic therapy and as a driver oncogene in different tumor types. Lucitanib is a small molecule inhibitor of vascular endothelial growth factor (VEGF) receptors 1 to 3 (VEGFR1 to 3), platelet derived growth factor α/β (PDGFRα/β) and FGFR1-3 tyrosine kinases and has demonstrated activity in a phase I/II clinical study, with objective RECIST responses in breast cancer patients with FGFR1 or FGF3/4/19 gene amplification, as well as in patients anticipated to benefit from anti-angiogenic agents...
December 15, 2016: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/27849035/continuous-exposure-to-non-lethal-doses-of-sodium-iodate-induces-retinal-pigment-epithelial-cell-dysfunction
#10
Xiao-Yu Zhang, Tsz Kin Ng, Mårten Erik Brelén, Di Wu, Jian Xiong Wang, Kwok Ping Chan, Jasmine Sum Yee Yung, Di Cao, Yumeng Wang, Shaodan Zhang, Sun On Chan, Chi Pui Pang
Age-related macular degeneration (AMD), characterized by progressive degeneration of retinal pigment epithelium (RPE), is the major cause of irreversible blindness and visual impairment in elderly population. We previously established a RPE degeneration model using an acute high dose sodium iodate to induce oxidative stress. Here we report findings on a prolonged treatment of low doses of sodium iodate on human RPE cells (ARPE-19). RPE cells were treated continuously with low doses (2-10 mM) of sodium iodate for 5 days...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27803896/roles-of-fgf-signals-in-heart-development-health-and-disease
#11
REVIEW
Nobuyuki Itoh, Hiroya Ohta, Yoshiaki Nakayama, Morichika Konishi
The heart provides the body with oxygen and nutrients and assists in the removal of metabolic waste through the blood vessels of the circulatory system. It is the first organ to form during embryonic morphogenesis. FGFs with diverse functions in development, health, and disease are signaling proteins, mostly as paracrine growth factors or endocrine hormones. The human/mouse FGF family comprises 22 members. Findings obtained from mouse models and human diseases with FGF signaling disorders have indicated that several FGFs are involved in heart development, health, and disease...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27750286/secretion-profile-of-induced-pluripotent-stem-cell-derived-retinal-pigment-epithelium-during-wound-healing
#12
Whitney A Greene, Teresa A Burke, Elaine D Por, Ramesh R Kaini, Heuy-Ching Wang
Purpose: The purpose of this study was to characterize the secretion profile of induced pluripotent stem cell-derived retinal pigment epithelium (iPS-RPE) during wound healing. iPS-RPE was used to develop an in vitro wound healing model. We hypothesized that iPS-RPE secretes cytokines and growth factors which act in an autocrine manner to promote migration and proliferation of cells during wound healing. Methods: iPS-RPE was grown in transwells until fully confluent and pigmented...
August 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27721584/the-three-sisters-of-fate-in-multiple-sclerosis-klotho-clotho-fibroblast-growth-factor-23-lachesis-and-vitamin-d-atropos
#13
Hamit Yasar Ellidag, Necat Yilmaz, Fatma Kurtulus, Ozgur Aydin, Esin Eren, Ayca Inci, Suleyman Dolu, Fatma Demet Arslan Ince, Özlem Giray, Aylin Yaman
BACKGROUND: The klotho (Klt)-fibroblast growth factor-23 (FGF-23)-vitamin D axis is the main component of calcium (Ca) and phosphorus (P) metabolisms; on the contrary, it is also secreted from the choroid plexus (CP). PURPOSE: This study is aimed at evaluating serum soluble Klt (sKlt), FGF-23, and 25-(OH)-vitamin D levels in multiple sclerosis (MS) patients. METHODS: Thirty-two relapsing-remitting MS patients (11 males and 21 females; mean age 38...
September 2016: Annals of Neurosciences
https://www.readbyqxmd.com/read/27699175/regulation-of-hepatic-stellate-cells-and-fibrogenesis-by-fibroblast-growth-factors
#14
REVIEW
Justin D Schumacher, Grace L Guo
Fibroblast growth factors (FGFs) are a family of growth factors critically involved in developmental, physiological, and pathological processes, including embryogenesis, angiogenesis, wound healing, and endocrine functions. In the liver, several FGFs are produced basally by hepatocytes and hepatic stellate cells (HSCs). Upon insult to the liver, expression of FGFs in HSCs is greatly upregulated, stimulating hepatocyte regeneration and growth. Various FGF isoforms have also been shown to directly induce HSC proliferation and activation thereby enabling autocrine and paracrine regulation of HSC function...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27679852/the-relationship-of-novel-plasma-proteins-in-the-early-neonatal-period-with-retinopathy-of-prematurity
#15
Anne M Lynch, Brandie D Wagner, Naresh Mandava, Alan G Palestine, Peter M Mourani, Emily A McCourt, Scott C N Oliver, Steven H Abman
Purpose: Retinopathy of prematurity (ROP) is a vision-threatening disease associated with abnormal retinal vascular development. Proteins from the insulin-like growth factor pathway are related to ROP. However, there is a paucity of research on the role of other proteins in ROP. The aim of this study was to identify plasma proteins related to clinically significant ROP. Methods: We measured 1121 plasma proteins in the early neonatal period in infants at risk for ROP using an aptamer-based proteomic technology...
September 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27646933/current-and-upcoming-pharmacotherapy-for-non-alcoholic-fatty-liver-disease
#16
REVIEW
Yaron Rotman, Arun J Sanyal
Given the high prevalence and rising incidence of non-alcoholic fatty liver disease (NAFLD), the absence of approved therapies is striking. Although the mainstay of treatment of NAFLD is weight loss, it is hard to maintain, prompting the need for pharmacotherapy as well. A greater understanding of disease pathogenesis in recent years was followed by development of new classes of medications, as well as potential repurposing of currently available agents. NAFLD therapies target four main pathways. The dominant approach is targeting hepatic fat accumulation and the resultant metabolic stress...
January 2017: Gut
https://www.readbyqxmd.com/read/27589928/obeticholic-acid-for-the-treatment-of-primary-biliary-cirrhosis
#17
David E J Jones
INTRODUCTION: There is significant unmet need in Primary Biliary Cholangitis (PBC) in patients under-responsive to the only approved therapy Ursodeoxycholic Acid (UDCA) who are at increased risk of progressing to end-stage liver disease. Obeticholic Acid (OCA) is a farnesoid X receptor (FXR) agonist which has been evaluated as a second line therapy in PBC and has recently been licenced by the FDA. AREAS COVERED: The pharmacology and biology of OCA as an FXR agonist and its clinical benefits...
September 2, 2016: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27580383/alterations-in-enterohepatic-fgf15-signaling-and-changes-in-bile-acid-composition-depend-on-localization-of-murine-intestinal-inflammation
#18
Monika Rau, Bruno Stieger, Maria J Monte, Johannes Schmitt, Daniel Jahn, Isabelle Frey-Wagner, Tina Raselli, Jose J G Marin, Beat Müllhaupt, Gerhard Rogler, Andreas Geier
BACKGROUND: Fibroblast growth factor (FGF) 15/19 is part of the gut-liver crosstalk accounting for bile acid (BA) metabolism regulation. Dysregulation of fibroblast growth factor 15/19 signaling is observed in different pathological conditions, for example, in gastrointestinal diseases such as inflammatory bowel disease (IBD). To understand the molecular bases, we analyzed the enterohepatic regulation of Fgf15-mediated pathway in 2 different inflammatory bowel disease mouse models. METHODS: Target genes of the BA-farnesoid-X-receptor (Fxr)-Ffg15 axis were quantified by RT-PCR or western blotting in gut and liver of dextran sulfate sodium (DSS)-treated and IL10 mice...
October 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27521506/new-pharmacologic-agents-that-target-inflammation-and-fibrosis-in-nonalcoholic-steatohepatitis-related-kidney-disease
#19
Giovanni Musso, Franco De Michieli, Daria Bongiovanni, Renato Parente, Luciana Framarin, Nicola Leone, Mara Berrutti, Roberto Gambino, Maurizio Cassader, Solomon Cohney, Elena Paschetta
Epidemiologic data show an association between the prevalence and severity of nonalcoholic fatty liver disease and the incidence and stage of chronic kidney disease (CKD); furthermore, nonalcoholic steatohepatitis (NASH)-related cirrhosis has a higher risk of renal failure, a greater necessity for simultaneous liver-kidney transplantation, and a poorer renal outcome than cirrhosis of other etiologies even after simultaneous liver-kidney transplantation. These data suggest that NASH and CKD share common proinflammatory and profibrotic mechanisms of progression, which are targeted incompletely by current treatments...
August 10, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27452603/serum-bile-acids-and-glp-1-decrease-following-telemetric-induced-weight-loss-results-of-a-randomized-controlled-trial
#20
Ronald Biemann, Marina Penner, Katrin Borucki, Sabine Westphal, Claus Luley, Raik Rönicke, Kathleen Biemann, Cornelia Weikert, Anke Lux, Nikolai Goncharenko, Hanns-Ulrich Marschall, Jochen G Schneider, Berend Isermann
Bile acids (BAs) are increasingly recognised as metabolic regulators, potentially improving insulin sensitivity following bariatric surgery. However, physiological relevance of such observations remains unknown. Hence, we analysed serum BA composition and associated gut-derived hormone levels following lifestyle-induced weight loss in individuals with metabolic syndrome (MetS). 74 non-smoking men (45-55 yr) with MetS were randomised to a lifestyle-induced weight loss program (supervision via telemonitoring) or to a control arm...
2016: Scientific Reports
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