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https://www.readbyqxmd.com/read/28626379/fifteen-year-old-male-with-type-2-autoimmune-pancreatitis-an-argument-for-endoscopy
#1
Nathan T Kolasinski, Marc T Johannsen, Justin R Hollon
Type 2 autoimmune pancreatitis, an increasingly recognized etiology of pancreatitis in patients less than 20 years old, has characteristically been diagnosed with the histological finding of duct-centric pancreatitis in a patient who lacks elevated serum immunoglobulin G4. We present the case of a nonobese 15-year-old male, without any chronic medical conditions, who presented with the chief complaint of abdominal pain. The laboratory study results were remarkable for a lipase level of 5,419 U/L and a γ-glutamyl transferase level of 373 U/L...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28623133/prostaglandin-d2-enhances-lipid-accumulation-through-suppression-of-lipolysis-via-dp2-crth2-receptors-in-adipocytes
#2
Eri Wakai, Kosuke Aritake, Yoshihiro Urade, Ko Fujimori
Prostaglandin (PG) D2 enhanced lipid accumulation in adipocytes. However, its molecular mechanismremains unclear. In this study, we investigated the regulatory mechanisms of PGD2-elevated lipid accumulation in mouse adipocytic 3T3-L1 cells. The Gi-coupled DP2 (CRTH2) receptors (DP2R), one of the two-types of PGD2 receptors were dominantly expressed in adipocytes. A DP2R antagonist, CAY10595, but not DP1 receptor antagonist, BWA868C cleared the PGD2-elevated intracellular triglyceride level. While, a DP2R agonist, 15R-15-methyl PGD2 (15R) increased the mRNA levels of the adipogenic and lipogenic genes, and decreased the glycerol release level...
June 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28606126/pooled-safety-analyses-of-alk-tki-inhibitor-in-alk-positive-nsclc
#3
Qian Zhu, Hao Hu, De-Sheng Weng, Xiao-Fei Zhang, Chang-Long Chen, Zi-Qi Zhou, Yan Tang, Jian-Chuan Xia
BACKGROUND: The anaplastic lymphoma kinase tyrosine kinase inhibitors (ALK-TKIs) have been administered to patients with ALK-positive non-small cell lung cancer for a long period of time and show a promising response. However, the differences in the toxicity profiles among these drugs are still unclear. METHODS: We performed a comprehensive search of the MEDLINE, EMBASE, WEB OF SCIENCE and COCHRANE databases from the drugs' inception to May 2016 to identify clinical trials...
June 12, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28591627/triglyceride-metabolism-under-attack
#4
Sander Kersten
Hydrolysis of circulating triglycerides is carried out by the enzyme lipoprotein lipase, which is transported and anchored to the capillary wall by the protein GPIHBP1. Recent evidence indicates that certain individuals develop autoantibodies against GPIHBP1, impairing lipoprotein lipase function and leading to markedly elevated plasma triglyceride levels (Beigneux et al., 2017).
June 6, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28589990/a-novel-self-activation-mechanism-of-candida-antarctica-lipase-b
#5
Binquan Luan, Ruhong Zhou
Candida antarctica lipase B (CalB), resembling many other lipases structure-wise, contains a flexible lid that undergoes a surprisingly large conformational change when catalyzing hydrophobic substrates (e.g. triglycerides). Despite extensive and important applications in industry, it is so far still elusive whether CalB can be activated on a hydrophobic surface, like other lipases. From large-scale all-atom molecular dynamics simulations, we discovered an open state that strikingly shows a much wider and more stable entrance to the catalytic site than the one suggested by previous crystal structures...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28576451/elbasvir-plus-grazoprevir-in-patients-with-hepatitis-c-virus-infection-and-stage-4-5-chronic-kidney-disease-clinical-virological-and-health-related-quality-of-life-outcomes-from-a-phase-3-multicentre-randomised-double-blind-placebo-controlled-trial
#6
Annette Bruchfeld, David Roth, Paul Martin, David R Nelson, Stanislas Pol, Maria-Carlota Londoño, Howard Monsour, Marcelo Silva, Peggy Hwang, Jean-Marie Arduino, Michael Robertson, Bach-Yen Nguyen, Janice Wahl, Eliav Barr, Wayne Greaves
BACKGROUND: In the C-SURFER study, therapy with the all-oral elbasvir plus grazoprevir regimen for 12 weeks in patients with chronic hepatitis C virus (HCV) infection and stage 4-5 chronic kidney disease resulted in a high rate of virological cure compared with placebo. Here, we report sustained virological response (SVR), safety data, health-related quality-of-life (HRQOL), and virological resistance analyses in patients in C-SURFER who received immediate antiviral therapy or who received placebo before therapy...
May 30, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28575409/giant-reverse-transcriptase-encoding-transposable-elements-at-telomeres
#7
Irina R Arkhipova, Irina A Yushenova, Fernando Rodriguez
Transposable elements are omnipresent in eukaryotic genomes and have a profound impact on chromosome structure, function and evolution. Their structural and functional diversity is thought to be reasonably well-understood, especially in retroelements, which transpose via an RNA intermediate copied into cDNA by the element-encoded reverse transcriptase, and are characterized by a compact structure. Here we report a novel type of expandable eukaryotic retroelements, which we call Terminons. These elements can attach to G-rich telomeric repeat overhangs at the chromosome ends, in a process apparently facilitated by complementary C-rich repeats at the 3'-end of the RNA template immediately adjacent to a hammerhead ribozyme motif...
May 30, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28559780/pancreatitis-induced-by-cocaine
#8
Sebastián Pablo Chapela, Silvina de Los Angeles Paz, Florencia Maria Ballestero
Pancreatitis is one of the commonest diseases of the gastrointestinal tract, characterized by epigastric pain of moderate to severe intensity, which radiates to the back, elevation of pancreatic lipase and amylase enzymes, and changes in pancreatic parenchyma in imaging methods. The most common etiologies vary, generally the most frequent being biliary lithiasis and alcohol, followed by hypertriglyceridemia. Among the less frequent causes is drug-induced pancreatitis. We report a case of acute pancreatitis caused by cocaine, rarely described in literature...
January 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28546021/sodium-butyrate-improved-intestinal-immune-function-associated-with-nf-%C3%AE%C2%BAb-and-p38mapk-signalling-pathways-in-young-grass-carp-ctenopharyngodon-idella
#9
Li Tian, Xiao-Qiu Zhou, Wei-Dan Jiang, Yang Liu, Pei Wu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Fei Xie, Lin Feng
The present study evaluated the effect of dietary sodium butyrate (SB) supplementation on the growth and immune function in the proximal intestine (PI), middle intestine (MI) and distal intestine (DI) of young grass carp (Ctenopharyngodon idella). The fish were fed one powdery sodium butyrate (PSB) diet (1000.0 mg kg(-1) diet) and five graded levels of microencapsulated sodium butyrate (MSB) diets: 0.0 (control), 500.0, 1000.0, 1500.0 and 2000.0 mg kg(-1) diet for 60 days. Subsequently, a challenge test was conducted by injection of Aeromonas hydrophila...
May 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28538100/enzymatic-hydrolysis-of-polyester-thin-films-at-the-nanoscale-effects-of-polyester-structure-and-enzyme-active-site-accessibility
#10
Michael Thomas Zumstein, Daniela Rechsteiner, Nicolas Roduner, Veronika Perz, Doris Ribitsch, Georg M Guebitz, Hans-Peter E Kohler, Kristopher McNeill, Michael Sander
Biodegradable polyesters have a large potential to replace persistent polymers in numerous applications and to thereby reduce the accumulation of plastics in the environment. Ester hydrolysis by extracellular carboxylesterases is considered the rate-limiting step in polyester biodegradation. In this work, we systematically investigated the effects of polyester and carboxylesterase structure on the hydrolysis of nanometer-thin polyester films using a quartz-crystal microbalance with dissipation monitoring. Hydrolyzability increased with increasing polyester-chain flexibility as evidenced from differences in the hydrolysis rates and extents of aliphatic polyesters varying in the length of their dicarboxylic acid unit and of poly(butylene adipate co-terephthalate) (PBAT) polyesters varying in their terephthalate-to-adipate ratio by Rhizopus oryzae lipase and Fusarium solani cutinase...
May 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28534127/genetics-of-triglycerides-and-the-risk-of-atherosclerosis
#11
REVIEW
Jacqueline S Dron, Robert A Hegele
PURPOSE OF REVIEW: Plasma triglycerides are routinely measured with a lipid profile, and elevated plasma triglycerides are commonly encountered in the clinic. The confounded nature of this trait, which is correlated with numerous other metabolic perturbations, including depressed high-density lipoprotein cholesterol (HDL-C), has thwarted efforts to directly implicate triglycerides as causal in atherogenesis. Human genetic approaches involving large-scale populations and high-throughput genomic assessment under a Mendelian randomization framework have undertaken to sort out questions of causality...
July 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28529456/ethyl-acetate-fraction-of-huogu-formula-inhibits-adipogenic-differentiation-of-bone-marrow-stromal-cells-via-the-bmp-and-wnt-signaling-pathways
#12
Xiangying Kong, Xiaomin Li, Cun Zhang, Liuluan Zhu, Chunfang Liu, Qingxia Qin, Cuiling Liu, Qianqian Wang, Jia Zhu, Xuan Wu, Hongye Wan, Weiheng Chen, Na Lin
Elevated adipogenesis of bone marrow stromal cells (BMSCs) is closely associated with non-traumatic osteonecrosis of femoral head (ONFH). Our previous studies have shown that Huogu (HG) formula was effective both in clinic experience and experimental ONFH. How HG impacts the differentiation of BMSCs and what is the underlying molecular mechanism remain largely unknown. Our results showed that ethyl acetate extract of HG (HGE) significantly decreased the adipocyte differentiation as determined by oil red staining, while slightly increased the ALP activity...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28516111/transhiatal-herniation-of-the-pancreas-a-rare-cause-of-acute-pancreatitis
#13
Jeremy Wang, Adarsh M Thaker, Wael Noor El-Nachef, Rabindra R Watson
Transhiatal herniation of the pancreas is rare. Acute pancreatitis secondary to this phenomenon is particularly unusual. A 102-year-old woman presented with 1 day of severe chest pain, vomiting, dyspnea, and diaphoresis. Serum lipase was elevated, and computed tomography angiogram of the chest and magnetic resonance cholangiopancreatography revealed a hiatal hernia containing the pancreas, with associated findings of pancreatitis. Pancreatitis in this setting may be due to repetitive trauma or ischemia from sliding, intermittent folding of the pancreatic duct, or pancreatic incarceration...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28512098/a-rare-case-of-thrombotic-microangiopathy-triggered-by-acute-pancreatitis
#14
Kevin Singh, Ahmed Jamal Nadeem, Behzad Doratotaj
Thrombotic microangiopathy (TMA) occurring after acute pancreatitis is rarely described. Without prompt intervention, TMA can be, and often is, lethal, so prompt recognition is important. Here, we present a case of a 61-year-old woman with a history of alcohol misuse who presented with epigastric pain, nausea and vomiting after binge drinking. Elevated serum lipase and imaging were suggestive of acute-on-chronic pancreatitis. Although the patient's symptoms of acute pancreatitis subsided, her anaemia, thrombocytopenia and acute kidney injury worsened...
May 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28504497/liver-disease-and-dyslipidemia-as-a-manifestation-of-lysosomal-acid-lipase-deficiency-lal-d-clinical-and-diagnostic-aspects-and-a-new-treatment-an-update
#15
Luisa Bay, Cristina Canero Velasco, Mirta Ciocca, Andrea Cotti, Miriam Cuarterolo, Alejandro Fainboim, Eduardo Fassio, Marcela Galoppo, Federico Pinero, Paula Rozenfeld
Lysosomal acid lipase deficiency (LAL-D) is still a little recognized genetic disease with significant morbidity and mortality in children and adults. This document provides guidance on when to suspect LAL-D and how to diagnose it. It is recommended to add lysosomal acid lipase deficiency to the List of differential diagnoses of sepsis, oncological diseases, storage diseases, persistent diarrhea, chronic malnutrition, and hemophagocytic lymphohistiocytosis. It should also be considered in young patients with dyslipidemia and atherosclerosis as well as diseases associated with fatty liver and/or hepatomegaly...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28502515/lysosomal-acid-lipase-deficiency-in-all-siblings-of-the-same-parents
#16
James J Maciejko, Premchand Anne, Saleem Raza, Hernando J Lyons
We present 4 normal-weight sibling children with lysosomal acid lipase deficiency (LAL-D). LAL-D was considered in the differential diagnosis based on the absence of secondary causes and primary inherited traits for their marked hyperlipidemia, together with unexplained hepatic transaminase elevation. Residual lysosomal acid lipase activity confirmed the diagnosis. DNA sequencing of LIPA indicated that the siblings were compound heterozygotes (c.894G>A and c.428+1G>A). This case describes the unusual occurrence of all offspring from the same nonconsanguineous mother and father inheriting compound heterozygosity of a recessive trait and the identification of an apparently unique LIPA mutation (c...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28502512/metreleptin-therapy-lowers-plasma-angiopoietin-like-protein-3-in-patients-with-generalized-lipodystrophy
#17
Ranganath Muniyappa, Brent S Abel, Asha Asthana, Mary F Walter, Elaine K Cochran, Alan T Remaley, Monica C Skarulis, Phillip Gorden, Rebecca J Brown
BACKGROUND: Reduced triglyceride clearance due to impaired lipoprotein lipase-mediated lipolysis contributes to severe hypertriglyceridemia in lipodystrophy. Angiopoietin-like protein 3 (ANGPTL3) and 4 (ANGPTL4) impair clearance of triglycerides by inhibiting lipoprotein lipase. Whether circulating ANGPTL3/4 levels are altered in lipodystrophy and the effects of leptin replacement on these ANGPTLs are unknown. OBJECTIVE: To examine if ANGPTL3/4 levels are elevated in patients with generalized lipodystrophy and assess the effects of leptin replacement on these ANGPTLs...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28502509/the-heterozygous-n291s-mutation-in-the-lipoprotein-lipase-gene-impairs-whole-body-insulin-sensitivity-and-affects-a-distinct-set-of-plasma-metabolites-in-humans
#18
Sofia Mikkelsen Berg, Jesper Havelund, Harald Hasler-Sheetal, Vibeke Kruse, Andreas James Thestrup Pedersen, Aleksander Bill Hansen, Mads Nybo, Henning Beck-Nielsen, Kurt Højlund, Nils Joakim Færgeman
BACKGROUND: Mutations in the lipoprotein lipase gene causing decreased lipoprotein lipase activity are associated with surrogate markers of insulin resistance and the metabolic syndrome in humans. OBJECTIVE: We investigated the hypothesis that a heterozygous lipoprotein lipase mutation (N291S) induces whole-body insulin resistance and alterations in the plasma metabolome. METHODS: In 6 carriers of a heterozygous lipoprotein lipase mutation (N291S) and 11 age-matched and weight-matched healthy controls, we examined insulin sensitivity and substrate metabolism by euglycemic-hyperinsulinemic clamps combined with indirect calorimetry...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28502159/lpl-gene-pvu-ii-polymorphism-and-hypertriglyceridemia-a-meta-analysis-involving-1-640-subjects
#19
Yan-Yan Li, Yan-Hong Zhou, Ge Gong, Hong-Yu Geng, Xin-Xing Yang, Xiang-Ming Wang, Chuan-Wei Zhou, Jian Xu, Yun Qian
Background/Aims: Although lipoprotein lipase (LPL) gene Pvu II polymorphism has been associated with an increased risk of hypertriglyceridemia (HT), there is no clear consensus within the scientific community. Methods: A meta-analysis of 1,640 subjects from six individual studies was conducted to better elucidate the potential relationship between the LPL gene Pvu II polymorphism and HT within the Chinese population. Pooled odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were evaluated by using fixed effect models...
May 16, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28493444/impact-of-hyperlipidaemia-on-intermediary-metabolism-faecal-microbial-metabolites-and-urinary-characteristics-of-lipoprotein-lipase-deficient-vs-normal-cats
#20
N Paßlack, J Zentek, J A Larsen, J L Westropp, A J Fascetti
Findings in humans and rats indicate that hyperlipidaemia may be associated with enhanced endogenous oxalate (Ox) synthesis, which may be relevant for calcium oxalate (CaOx) urolith formation. Moreover, changes in lipid metabolism are proposed to negatively affect gut microbiota. This study aimed to investigate those potential interactions in hyperlipidaemic cats. Therefore, 10 normal control cats and seven lipoprotein lipase (LPL)-deficient cats were fed a low-fat diet for seven weeks. During the last week of the study, cats were housed in metabolic cages to collect urine and faeces...
May 11, 2017: Journal of Animal Physiology and Animal Nutrition
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