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https://www.readbyqxmd.com/read/28916914/the-effects-of-protein-and-fiber-content-on-gut-structure-and-function-in-zebrafish-danio-rerio
#1
Samantha C Leigh, Bao-Quang Nguyen-Phuc, Donovan P German
Chemical reactor theory (CRT) suggests that the digestive tract functions as a chemical reactor for processing food. Presumably, gut structure and function should match diet to ensure adequate nutrient and energy uptake to maintain performance. Within CRT, dietary biochemical composition is the most important factor affecting gut structure and function in vertebrates. We fed Danio rerio (zebrafish) diets ranging from high- to moderate- to low-quality (i.e., ranging from high-protein, low-fiber to low-protein, high-fiber), and observed how gut length and surface area, as well as the activity levels of digestive enzymes (amylase, maltase, trypsin, aminopeptidase, and lipase) shifted in response to these dietary changes...
September 15, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28915794/genome-sequence-of-the-ectophytic-fungus-ramichloridium-luteum-reveals-unique-evolutionary-adaptations-to-plant-surface-niche
#2
Bo Wang, Xiaofei Liang, Mark L Gleason, Rong Zhang, Guangyu Sun
BACKGROUND: Ectophytic fungi occupy the waxy plant surface, an extreme environment characterized by prolonged desiccation, nutrient limitation, and exposure to solar radiation. The nature of mechanisms that facilitate adaptation to this environment remains unclear. In this study, we sequenced the complete genome of an ectophytic fungus, Ramichloridium luteum, which colonizes the surface of apple fruit, and carried out comparative genomic and transcriptome analysis. RESULTS: The R...
September 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28891316/associations-of-the-abca1-and-lpl-gene-polymorphisms-with-lipid-levels-in-a-hyperlipidemic-population
#3
Fang Tao, Justin Weinstock, Scott A Venners, Jun Cheng, Yi-Hsiang Hsu, Yanfeng Zou, Faming Pan, Shanqun Jiang, Xiangdong Zha, Xiping Xu
We conducted a cross-sectional study to investigate the effects of the adenosine triphosphate-binding cassette transporter 1 (ABCA1) I883M and lipoprotein lipase (LPL) HindIII polymorphisms on lipid levels in patients with hyperlipidemia. A total of 533 patients were enrolled. Serum lipid parameters were determined by an automatic biochemistry analyzer. Genotyping of the ABCA1 I883M and LPL HindIII was carried out using the polymerase chain reaction-restriction fragment length polymorphism technique. Multiple linear regression analysis was used to estimate the associations between serum lipid levels and the genetic polymorphisms...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28891024/resveratrol-supplementation-improves-lipid-and-glucose-metabolism-in-high-fat-diet-fed-blunt-snout-bream
#4
Dingdong Zhang, Yanan Yan, Hongyan Tian, Guangzhen Jiang, Xiangfei Li, Wenbin Liu
Here, we aimed to investigate whether resveratrol (RSV) can ameliorate high-fat diet (HFD)-induced metabolic disorder in fish. Blunt snout bream (Megalobrama amblycephala) with average weight 27.99 ± 0.56 g were fed a normal fat diet (NFD, 5% fat, w/w), a HFD (11% fat), or a HFD supplemented with 0.04, 0.36, or 1.08% RSV for 10 weeks. As expected, fish fed a HFD developed hepatic steatosis, as shown by elevated hepatic and plasma triglycerides, raised whole body fat, intraperitoneal fat ratio and hepatosomatic index, and increased plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST)...
September 10, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28881270/molecular-and-clinical-characterization-of-a-series-of-patients-with-childhood-onset-lysosomal-acid-lipase-deficiency-retrospective-investigations-follow-up-and-detection-of-two-novel-lipa-pathogenic-variants
#5
Livia Pisciotta, Giulia Tozzi, Lorena Travaglini, Roberta Taurisano, Tiziano Lucchi, Giuseppe Indolfi, Francesco Papadia, Maja Di Rocco, Lorenzo D'Antiga, Patricia Crock, Komal Vora, Scott Nightingale, Helen Michelakakis, Anastasia Garoufi, Lilia Lykopoulou, Stefano Bertolini, Sebastiano Calandra
BACKGROUND AND AIMS: Childhood/Adult-onset Lysosomal Acid Lipase Deficiency (LAL-D) is a recessive disorder due to loss of function variants of LAL, the enzyme which hydrolyses cholesteryl esters, derived from internalized apoB containing lipoproteins. The disease is characterized by multi-organ involvement including the liver, spleen, intestine and cardiovascular system. The aim of this study was the clinical and molecular characterization of 14 (13 unrelated) previously unreported patients with childhood-onset LAL-D...
August 26, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28877730/pancreas-herniation-into-the-mediastinum-a-case-report
#6
Muhammad Shafiq, Moaviz B Badshah, Maaz B Badshah, Mashood B Badshah, James Watkins
BACKGROUND: Pancreatic tissue found in the mediastinum (both true ectopic and herniated pancreas) is rare. It becomes even more challenging when there are complications associated with this entity. CASE PRESENTATION: We report an unusual case of pancreatic herniation into the mediastinum in a 90-year-old Caucasian female. This patient initially presented with nausea and vomiting associated with abdominal pain. Serum lipase and amylase both were elevated. Computed tomography scan of the chest, abdomen and pelvis revealed a large hiatal hernia with pancreas herniation into the mediastinum, with superimposed acute pancreatitis likely due to gallstone...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28873429/cd18-deficiency-improves-liver-injury-in-the-mcd-model-of-steatohepatitis
#7
Andrew A Pierce, Caroline C Duwaerts, Kevin Siao, Aras N Mattis, Amanda Goodsell, Jody L Baron, Jacquelyn J Maher
Neutrophils and macrophages are important constituents of the hepatic inflammatory infiltrate in non-alcoholic steatohepatitis. These innate immune cells express CD18, an adhesion molecule that facilitates leukocyte activation. In the context of fatty liver, activation of infiltrated leukocytes is believed to enhance hepatocellular injury. The objective of this study was to determine the degree to which activated innate immune cells promote steatohepatitis by comparing hepatic outcomes in wild-type and CD18-mutant mice fed a methionine-choline-deficient (MCD) diet...
2017: PloS One
https://www.readbyqxmd.com/read/28871567/a-case-of-biliary-atresia-with-pancreaticobiliary-maljunction
#8
Kosuke Endo, Akiko Yokoi, Yasuhiko Mishima, Akihiko Tamaki, Keiichi Morita, Yuichi Okata, Chieko Hisamatsu, Hiroaki Fukuzawa, Makiko Yoshida, Yoshinobu Akasaka, Kosaku Maeda
BACKGROUND: The pathogenesis of biliary atresia (BA) is still unknown. There are several reports on the etiology of BA, including pancreaticobiliary maljunction (PBM). We experienced a case of Kasai type IIIa BA with PBM, in which we found elevation of pancreatic enzymes in the gallbladder. We evaluated whether PBM is related to the pathogenesis of BA based on our findings. CASE PRESENTATION: The patient was born at 40 weeks of gestation. His body weight at birth was 2850 g...
September 5, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28866808/chylomicrons-stimulate-incretin-secretion-in-mouse-and-human-cells
#9
Arianna Psichas, Pierre F Larraufie, Deborah A Goldspink, Fiona M Gribble, Frank Reimann
AIMS/HYPOTHESIS: Lipids are a potent stimulus for the secretion of glucagon-like peptide (GLP)-1 and glucose-dependent insulinotropic peptide (GIP). Traditionally, this effect was thought to involve the sensing of lipid digestion products by free fatty acid receptor 1 (FFA1) and G-protein coupled receptor 119 (GPR119) on the apical surface of enteroendocrine cells. However, recent evidence suggests that lipids may in fact be sensed basolaterally, and that fatty acid absorption and chylomicron synthesis may be a prerequisite for their stimulatory effect on gut peptide release...
September 2, 2017: Diabetologia
https://www.readbyqxmd.com/read/28826718/contrasting-effects-of-selective-magl-and-faah-inhibition-on-dopamine-depletion-and-gdnf-expression-in-a-chronic-mptp-mouse-model-of-parkinson-s-disease
#10
Noemi Pasquarelli, Christoph Porazik, Hanna Bayer, Eva Buck, Stefan Schildknecht, Patrick Weydt, Anke Witting, Boris Ferger
The modulation of the brain endocannabinoid system has been identified as an option to treat neurodegenerative diseases including Parkinson's disease (PD). Especially the elevation of endocannabinoid levels by inhibition of hydrolytic degradation represents a valuable approach. To evaluate whether monoacylglycerol lipase (MAGL) or fatty acid amide hydrolase (FAAH) inhibition could be beneficial for PD, we examined in parallel the therapeutic potential of the highly selective MAGL inhibitor KML29 elevating 2-arachidonoylglyerol (2-AG) levels and the highly selective FAAH inhibitor PF-3845 elevating anandamide (AEA) levels in a chronic methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid (MPTP/probenecid) mouse model of PD...
August 5, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28797250/omega-3-fatty-acids-eicosapentaenoic-acid-and-docosahexaenoic-acid-and-their-mechanisms-of-action-on-apolipoprotein-b-containing-lipoproteins-in-humans-a-review
#11
REVIEW
Jan Oscarsson, Eva Hurt-Camejo
BACKGROUND: Epidemiological and genetic studies suggest that elevated triglyceride (TG)-rich lipoprotein levels in the circulation increase the risk of cardiovascular disease. Prescription formulations of omega-3 fatty acids (OM3FAs), mainly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), reduce plasma TG levels and are approved for the treatment of patients with severe hypertriglyceridemia. Many preclinical studies have investigated the TG-lowering mechanisms of action of OM3FAs, but less is known from clinical studies...
August 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28782883/gallbladder-mucosal-lesions-associated-with-high-biliary-amylase-irrespective-of-pancreaticobiliary-maljunction
#12
Jason Free, Frank Wang, Nick Williams, Justin S Gundara, Ralph F Staerkle, Thomas J Hugh, Jaswinder S Samra
BACKGROUND: Previous studies have focused on the presence of reflux in selected cohorts with pancreaticobiliary maljunction (PBM), but little is known regarding the wider incidence of occult reflux and associated mucosal changes. We aimed to correlate gallbladder mucosal abnormalities with objective evidence of PBM and occult pancreaticobiliary reflux (PBR) in an Australian population undergoing cholecystectomy. METHODS: Patients undergoing cholecystectomy between September 2010 and September 2012 were eligible for inclusion...
August 7, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28771242/pancreatic-and-intestinal-function-post-roux-en-y-gastric-bypass-surgery-for-obesity
#13
Stephen J D O'Keefe, Tina Rakitt, Junhai Ou, Ihab I El Hajj, Elizabeth Blaney, Kishore Vipperla, Jens-Jules Holst, Jens Rehlfeld
OBJECTIVES: Despite the fact that the most effective treatment for morbid obesity today is gastric bypass surgery, some patients develop life-threatening nutritional complications associated with their weight loss. METHODS: Here we examine the influence of the altered anatomy and digestive physiology on pancreatic secretion and fat absorption. Thirteen post Roux-en-Y gastric bypass (RYGB) patients who had lost >100 lbs in the first year following surgery and who gave variable histories of gastrointestinal (GI) dysfunction, were selected for study...
August 3, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28763157/a-unifying-mathematical-model-of-lipid-droplet-metabolism-reveals-key-molecular-players-in-the-development-of-hepatic-steatosis
#14
Christin Wallstab, Dimitra Eleftheriadou, Theresa Schulz, Georg Damm, Daniel Seehofer, Jürgen Borlak, Hermann-Georg Holzhütter, Nikolaus Berndt
The liver responds to elevated plasma concentrations of free fatty acids (FFAs) with an enhanced uptake of FFAs and their esterification to triacylglycerol (TAG). On the long term this may result in massive hepatic TAG accumulation called steatosis hepatitis. In hepatocytes, the poor water-soluble TAG is packed in specialized organelles: Lipid droplets (LDs) serving as transient cellular deposit and lipoproteins (LPs) transporting TAG and cholesterol esters to extra-hepatic tissues. The dynamics of these organelles is controlled by a variety of regulatory surface proteins (RSPs)...
August 1, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28760555/rhythmicity-and-plasticity-of-digestive-physiology-in-a-euryhaline-teleost-fish-permit-trachinotus-falcatus
#15
Carlo C Lazado, Per Bovbjerg Pedersen, Huy Quang Nguyen, Ivar Lund
Digestive physiology is considered to be under circadian control, but there is little evidence in teleost fish. The present study explored the rhythmicity and plasticity to feeding schedules of enzymatic digestion in a candidate aquaculture fish, the permit (Trachinotus falcatus). The first experiment identified the rhythms of digestive factors throughout the light-dark (LD) cycle. Gastric luminal pH and pepsin activity showed significant daily variation albeit not rhythmic. These dynamic changes were likewise observed in several digestive enzymes, in which the activities of intestinal protease, chymotrypsin and lipase exhibited significant daily rhythms...
July 29, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28741302/estimates-of-biologic-variation-in-specific-feline-pancreatic-lipase-concentrations-in-cats-without-clinical-or-ultrasonographic-evidence-of-pancreatitis
#16
Margaret Cohn-Urbach, Craig G Ruaux, Sarah Nemanic
BACKGROUND: Serum concentrations of feline-specific pancreatic lipase are commonly used for diagnosis and monitoring of pancreatitis in cats, but little is known regarding biologic variation of this analyte. OBJECTIVES: The purpose of the study was to determine biologic variation, index of individuality, and reference change values (RCV) for specific feline pancreatic lipase concentrations (Spec fPL) in apparently healthy cats. METHODS: Four blood samples were collected prospectively from 12 apparently healthy cats at 2-week intervals...
July 24, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28733267/angptl4-promotes-bile-acid-absorption-during-taurocholic-acid-supplementation-via-a-mechanism-dependent-on-the-gut-microbiota
#17
Aafke W F Janssen, Wieneke Dijk, Jos Boekhorst, Folkert Kuipers, Albert K Groen, Sabina Lukovac, Guido J E J Hooiveld, Sander Kersten
Angiopoietin-like 4 (ANGPTL4) raises plasma triglyceride levels by inhibiting lipoprotein lipase. A set of compounds that are able to reduce plasma triglyceride levels are bile acids (BA). Because BA have been shown to decrease ANGPTL4 secretion by intestinal cells, we hypothesized that BA lower plasma triglycerides (partly) via ANGPTL4. To test that hypothesis, wild-type and Angptl4(-/-) mice were fed chow supplemented with taurocholic acid (TCA) for seven days. TCA supplementation effectively lowered plasma triglycerides in wild-type and Angptl4(-/-) mice, indicating that ANGPTL4 is not required for plasma triglyceride-lowering by BA...
October 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28725307/acute-pancreatitis-secondary-to-severe-hypertriglyceridemia-management-of-severe-hypertriglyceridemia-in-emergency-setting
#18
Ahmad Chaudhary, Umair Iqbal, Hafsa Anwar, Hafiz Umair Siddiqui, Madiha Alvi
Hypertriglyceridemia (HTG) is the third most common cause of acute pancreatitis (AP). The incidence of AP is around 10-20% with levels > 2,000 mg/dL. We present here a case of a 44-year-old male with history of uncontrolled diabetes mellitus and HTG admitted with severe abdominal pain. Labs revealed elevated lipase and amylase. CT of abdomen with contrast showed AP. He was found to have a triglyceride (TG) level of 6,672 mg/dL. Besides conventional treatment for AP with intravenous (IV) hydration, he was started on IV regular insulin along with dextrose saline...
June 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28720341/lipase-or-amylase-for-the-diagnosis-of-acute-pancreatitis
#19
REVIEW
Ola Z Ismail, Vipin Bhayana
Acute pancreatitis is a rapid onset of inflammation of the pancreas causing mild to severe life threatening conditions [1, 2]. In Canada, acute pancreatitis is the 5th most expensive digestive disease in Canada with a considerable economic burden on the health care system [3]. The diagnosis of acute pancreatitis is usually based on the presence of abdominal pain and elevated levels of serum amylase and/or lipase. Many health care centers use either serum amylase, lipase or both to diagnose acute pancreatitis without considering which one could provide a better diagnostic accuracy...
July 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28714716/cb%C3%A2-receptor-antagonism-in-the-bed-nucleus-of-the-stria-terminalis-interferes-with-affective-opioid-withdrawal-in-rats
#20
Kiri L Wills, Marieka V DeVuono, Cheryl L Limebeer, Kiran Vemuri, Alexandros Makriyannis, Linda A Parker
The bed nucleus of the stria terminalis (BNST) is a region of the extended amygdala that is implicated in addiction, anxiety, and stress related behaviors. This region has been identified in mediating the aversive state of naloxone-precipitated morphine withdrawal (MWD) and cannabinoid Type I (CB1) receptors have been found to modulate neurotransmission within this region. Previous findings suggest that the CB1 antagonist/inverse agonist, AM251, administered systemically or by infusion into the central nucleus of the amygdala (CeA) prevented the aversive affective properties of MWD as measured by conditioned place aversion learning...
August 2017: Behavioral Neuroscience
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