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Intestinal alkaline phosphatase

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https://www.readbyqxmd.com/read/28440703/zeta-potential-changing-nanoparticles-conjugated-with-cell-penetrating-peptides-for-enhanced-transfection-efficiency
#1
Wongsakorn Suchaoin, Arshad Mahmood, Kesinee Netsomboon, Andreas Bernkop-Schnürch
AIM: The aim of this study was to develop zeta-potential-changing nanoparticles (NPs) combining cell-penetrating peptides for gene delivery. METHODS & MATERIALS: NPs were formed using phosphorylated carboxymethyl cellulose-glucosamine 6-phosphate (CMC-G6P) and polyethylene imine-polyarginine conjugates. Phosphate release was evaluated using intestinal alkaline phosphatase and cell lines. Transfection studies with plasmid DNA were then performed. RESULTS: The zeta potential of CMC-G6P/branched PEI NPs was -3 mV and switched to +4 mV after intestinal alkaline phosphatase cleavage...
April 25, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28424943/intestinal-alkaline-phosphatase-attenuates-alcohol-induced-hepatosteatosis-in-mice
#2
Sulaiman R Hamarneh, Byeong-Moo Kim, Kanakaraju Kaliannan, Sara A Morrison, Tyler J Tantillo, Qingsong Tao, Mussa M Rafat Mohamed, Juan M Ramirez, Aaron Karas, Wei Liu, Dong Hu, Abeba Teshager, Sarah Shireen Gul, Konstantinos P Economopoulos, Atul K Bhan, Madhu S Malo, Michael Y Choi, Richard A Hodin
BACKGROUND AND AIMS: Bacterially derived factors from the gut play a major role in the activation of inflammatory pathways in the liver and in the pathogenesis of alcoholic liver disease. The intestinal brush-border enzyme intestinal alkaline phosphatase (IAP) detoxifies a variety of bacterial pro-inflammatory factors and also functions to preserve gut barrier function. The aim of this study was to investigate whether oral IAP supplementation could protect against alcohol-induced liver disease...
April 19, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28423120/primary-cultures-of-mouse-small-intestinal-epithelial-cells-using-the-dissociating-enzyme-type-i-collagenase-and-hyaluronidase
#3
H J Ren, C L Zhang, R D Liu, N Li, X G Li, H K Xue, Y Guo, Z Q Wang, J Cui, L Ming
The epithelium is a highly dynamic system, which plays a crucial role in the homeostasis of the intestinal tract. However, studies on the physiological and pathophysiological functions of intestinal epithelial cells (IECs) have been hampered due to lack of normal epithelial cell models. In the present study, we established a reproducible method for primary culture of mouse IECs, which were isolated from the viable small intestinal crypts of murine fetuses (on embryonic day 19), using type I collagenase and hyaluronidase in a short span of time (≤20 min)...
April 13, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28406692/effect-of-pre-and-post-weaning-high-fat-dietary-manipulation-on-intestinal-microflora-and-alkaline-phosphatase-activity-in-male-rats
#4
Z Šefčíková, D Bujňáková
We investigated the impact of a high-fat (HF) diet during pre- and post-weaning periods on the intestinal microbiota and alkaline phosphatase (AP) activity in male rats. Nutrition from birth was influenced by feeding rat dams with either a standard or HF diet. After weaning male pups nursed by control dams continued on a standard diet (CC) or HF diet (C->HF), while offspring nursed by HF dams continued on HF diet (HF) or standard diet (HF->C). The numbers of Bacteriodes/Prevotella (BAC) and Lactobacillus/Enterococcus (LAB) in the gut were determined by FISH technique...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28401057/intestinal-hypoganglionosis-leading-to-intestinal-failure-and-the-compassionate-use-of-omegaven%C3%A2
#5
Racha Khalaf, Sara Karjoo, Paul Danielson, Michael Wilsey, Fauzia Shakeel
Intestinal hypoganglionosis is a rare innervation disorder that provides numerous nutritional, medical and surgical challenges. In this case report, we present a case of a newborn with intestinal hypoganglionosis leading to intestinal failure and intestinal failure-associated liver disease who responded to Omegaven™, a fat emulsion comprised of omega-3 fatty acids. Omegaven™ has been shown to be beneficial in the management of cholestatic liver injury. Clinical success with Omegaven™ was seen in this patient with a clear decrease in aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase and complete resolution of cholestasis with a direct bilirubin of zero within two weeks of initiation of Omegaven™...
March 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28400412/western-diet-consumption-induces-alteration-of-barrier-function-mechanisms-in-the-ileum-that-correlates-with-metabolic-endotoxemia-in-rats
#6
Mathilde Guerville, Anaïs Leroy, Annaëlle Sinquin, Fabienne Laugerette, Marie-Caroline Michalski, Gaëlle Boudry
Obesity and its related disorders have been associated to the presence in the blood of gut bacteria-derived lipopolysaccharides (LPS). However, the factors underlying this low-grade elevation in plasma LPS, so-called metabolic endotoxemia, are not fully elucidated. We aimed to investigate the effects of Western diet (WD) feeding on intestinal and hepatic LPS handling mechanisms in a rat model of diet-induced obesity (DIO). Rats were fed either a standard chow diet (C) or a Western Diet (WD, 45% fat) for 6 weeks...
April 11, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28393441/intestinal-alkaline-phosphatase-at-the-crossroad-of-intestinal-health-and-disease-a-putative-role-in-type-1-diabetes
#7
M I Lassenius, C L Fogarty, M Blaut, K Haimila, L Riittinen, A Paju, J Kirveskari, J Järvelä, A J Ahola, D Gordin, M-A Härma, A Kumar, S R Hamarneh, R A Hodin, T Sorsa, T Tervahartiala, S Hörkkö, P J Pussinen, C Forsblom, M Jauhiainen, M-R Taskinen, P-H Groop, M Lehto
BACKGROUND: Patients with type 1 diabetes have shown an increase in circulating cytokines, altered lipoprotein metabolism and signs of vascular dysfunction in response to high-fat meals. Intestinal alkaline phosphatase (IAP) regulates lipid transport and inflammatory responses in the gastrointestinal tract. We therefore hypothesized that changes in IAP activity could have profound effects on gut metabolic homeostasis in patients with type 1 diabetes. METHODS: Faecal samples of 41 nondiabetic controls and 46 patients with type 1 diabetes were analysed for IAP activity, calprotectin, immunoglobulins and short-chain fatty acids (SCFAs)...
April 10, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28376858/clinical-diagnostic-value-of-viable-schistosoma-japonicum-eggs-detected-in-host-tissues
#8
Kongzhen Gu, Yuesheng Li, Patrick Driguez, Qingren Zeng, Xinlin Yu, Hui Sun, Liting Cai, Yongkang He, Wenyang Wang, Donald P McManus
BACKGROUND: Schistosomiasis, one of the neglected tropical diseases, is endemic in more than 70 countries. However, the clinical diagnosis of patients with a low degree of infection is an unsolved technical problem. In areas endemic for schistosomiasis japonica, proctoscopy detection of eggs has been one method used for clinical diagnosis. However, it is often a challenge to find typical live eggs and it is difficult to distinguish live eggs from large numbers of partially degraded and/or completely degraded eggs within colon biopsy tissue...
April 4, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28350976/neuroendocrine-tumor-of-the-common-bile-duct-case-report
#9
C Raspanti, N Falco, V Silvestri, G Rotolo, S Bonventre, G Gulotta
Neuroendocrine tumors (NET) are a very heterogeneous group of neoplasms; in recent years we have seen an increase in their incidence (3.65 /100.000/year). They can be associated with hereditary endocrine syndromes (MEN, Von Hippel Lindau); they can occur at any age and the incidence is slightly higher in men than women. The aetiology of the neuroendocrine tumors is unclear; in most cases, inflammation of the bile ducts may be the underlying cause and for this reason, the initial patient's evaluation should be focused on the different aspects concerning the oncological one and the possible sequelae of the biliary obstructions that can evolve in biliary sepsis...
November 2016: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28318299/lithocholic-acid-a-new-emergent-protector-of-intestinal-calcium-absorption-under-oxidant-conditions
#10
Ana M Marchionatti, Adriana Pérez, María A Rivoira, Valeria A Rodríguez, Nori G Tolosa de Talamoni
LCA and 1,25(OH)2D3 are vitamin D receptor ligands with different binding affinity. The secosteroid stimulates intestinal Ca(2+) absorption. Whether LCA alters this process remains unknown. The aim of our work was to determine the effect of LCA on intestinal Ca(2+) absorption in the absence or presence of NaDOC, bile acid that inhibits the cation transport. The data show that LCA by itself did not alter intestinal Ca(2+) absorption, but prevented the inhibitory effect of NaDOC. The concomitant administration of LCA avoided the reduction of intestinal alkaline phosphatase activity caused by NaDOC...
April 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28316376/the-role-of-intestinal-alkaline-phosphatase-in-inflammatory-disorders-of-gastrointestinal-tract
#11
REVIEW
Jan Bilski, Agnieszka Mazur-Bialy, Dagmara Wojcik, Janina Zahradnik-Bilska, Bartosz Brzozowski, Marcin Magierowski, Tomasz Mach, Katarzyna Magierowska, Tomasz Brzozowski
Over the past few years, the role of intestinal alkaline phosphatase (IAP) as a crucial mucosal defence factor essential for maintaining gut homeostasis has been established. IAP is an important apical brush border enzyme expressed throughout the gastrointestinal tract and secreted both into the intestinal lumen and into the bloodstream. IAP exerts its effects through dephosphorylation of proinflammatory molecules including lipopolysaccharide (LPS), flagellin, and adenosine triphosphate (ATP) released from cells during stressful events...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28303430/management-of-neuroendocrine-tumor-liver-metastases-long-term-outcomes-and-prognostic-factors-from-a-large-prospective-database
#12
Mark Fairweather, Richard Swanson, Jiping Wang, Lauren K Brais, Trevor Dutton, Matthew H Kulke, Thomas E Clancy
BACKGROUND: Liver-directed therapies have been used to treat neuroendocrine liver metastases (NELM) for both symptomatic improvement and tumor growth control. We reviewed our experience with NELM to investigate the outcomes of available treatment modalities and to identify prognostic factors for survival. METHODS: We identified all patients with NELM, who were managed at our institution, from a prospectively collected institutional database. Overall survival (OS) was determined for each treatment modality...
March 16, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28298536/pasteurization-procedures-for-donor-human-milk-affect-body-growth-intestinal-structure-and-resistance-against-bacterial-infections-in-preterm-pigs
#13
Yanqi Li, Duc Ninh Nguyen, Marita de Waard, Lars Christensen, Ping Zhou, Pingping Jiang, Jing Sun, Anders Miki Bojesen, Charlotte Lauridsen, Jens Lykkesfeldt, Trine Kastrup Dalsgaard, Stine Brandt Bering, Per Torp Sangild
Background: Holder pasteurization (HP) destroys multiple bioactive factors in donor human milk (DM), and UV-C irradiation (UVC) is potentially a gentler method for pasteurizing DM for preterm infants.Objective: We investigated whether UVC-treated DM improves gut maturation and resistance toward bacterial infections relative to HP-treated DM.Methods: Bacteria, selected bioactive components, and markers of antioxidant capacity were measured in unpasteurized donor milk (UP), HP-treated milk, and UVC-treated milk (all from the same DM pool)...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28287856/enzymatic-kinetics-regarding-reversible-metabolism-of-cs-0777-a-sphingosine-1-phosphate-receptor-modulator-via-phosphorylation-and-dephosphorylation-in-humans
#14
Shin-Ichi Inaba, Maki Yamaguchi-Goto, Kaoru Tanaka-Takanaka, Kiyoaki Yonesu, Hidetaka Sakurai, Kazuishi Kubota, Takashi Izumi
1. CS-0777, a candidate compound for autoimmune diseases, becomes phosphorylated active metabolite, M1, by fructosamine 3-kinase (FN3K), FN3K-related protein (FN3K-RP); and M1 is reverted back to CS-0777 by alkaline phosphatase (ALP) in the body. We performed enzyme kinetic analysis of phosphorylation of CS-0777 by FN3K, FN3K-RP, human erythrocytes and human platelets; and dephosphorylation of M1 by various ALP isozymes and human liver, kidney, lung and small intestine microsomes. 2. The Michaelis constants of human FN3K, FN3K-RP and erythrocytes for CS-0777 phosphorylation were in the range from 498 μM to 1060 μM...
April 3, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28254498/effects-of-tussah-immunoreactive-substances-on-growth-immunity-disease-resistance-against-vibrio-splendidus-and-gut-microbiota-profile-of-apostichopus-japonicus
#15
Shuhui Ma, Yongxin Sun, Fuqiang Wang, Rui Mi, Zhixin Wen, Xuejun Li, Nan Meng, Yajie Li, Xingfan Du, Shuying Li
Tussah immunoreactive substance (TIS) comprises a number of active chemicals with various bioactivities. The current study investigated the effects of these substances on the sea cucumber Apostichopus japonicus. The specific growth rate (SGR) of TIS-fed sea cucumbers was significantly enhanced, whereas no significant difference in SGR was observed between those soaked in antibiotics and those fed with basal diet only. TIS also improved the immune response of the animals when given at a dose of 1.0% or 2.0%, as shown by increased phagocytic, lysozyme, superoxide dismutase, alkaline phosphatase, acid phosphatase, and catalase activities following injection with live Vibrio splendidus...
February 27, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28216902/feeble-antipyretic-analgesic-and-anti-inflammatory-activities-were-found-with-regular-dose-4-o-%C3%AE-d-glucosyl-5-o-methylvisamminol-one-of-the-conventional-marker-compounds-for-quality-evaluation-of-radix-saposhnikoviae
#16
Jing-Ming Yang, Hua Jiang, Hong-Liang Dai, Zi-Wei Wang, Gui-Zhi Jia, Xiang-Cai Meng
INTRODUCTION: 4'-O-β-D-glucosyl-5-O-methylvisamminol (GML) is a conventional marker compound for quality control of Radix Saposhnikoviae. Despite that, neither pharmacodynamic or pharmacokinetic information is available with regard to GML. As such, the aim of thisstudy was to assess the conventional evaluation indices for the quality of Radix Saposhnikoviae. MATERIALS AND METHODS: Pyretic animal model, hot plate test, and ear edema model were established to evaluate and compare the antipyretic, analgesic, and anti-inflammatory effect of the chromone derivativescimifugin, prime-O-glucosylcimifugin (PGCN), and GML in Radix Saposhnikoviae...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28210795/observational-comparisons-of-intestinal-microbiota-characterizations-immune-enzyme-activities-and-muscle-amino-acid-compositions-of-loach-in-paddy-fields-and-ponds-in-sichuan-province
#17
Song Yang, Yuanliang Duan, Jie Zhang, Jian Zhou, Ya Liu, Jun Du, Liulan Zhao, Zongjun Du, Shuaishuai Han
A balanced intestinal microbial ecosystem is crucial for the growth and health of animals because it can influence the digestion and absorption of nutrients in the intestine. Different culture conditions may change the ecology of microbial in intestine and thus affect the overall growth performance of an animal. In this study, we compared intestinal morphologies, microbiota characterizations, immune enzyme activities, and muscle amino acid compositions of loach cultured in paddy fields and ponds. The fish were fed with the same diets from May 5 to November 5 (2015) in three paddy or ponds...
February 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28193579/zinc-enhances-intestinal-epithelial-barrier-function-through-the-pi3k-akt-mtor-signaling-pathway-in-caco-2-cells
#18
Yuxin Shao, Patricia G Wolf, Shuangshuang Guo, Yuming Guo, H Rex Gaskins, Bingkun Zhang
Zinc plays an important role in maintaining intestinal barrier function as well as modulating cellular signaling recognition and protein kinase activities. The phosphatidylinositol 3-kinase (PI3K) cascade has been demonstrated to affect intercellular integrity and tight junction (TJ) proteins. The current study investigated the hypothesis that zinc regulates intestinal intercellular junction integrity through the PI3K/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway. A transwell model of Caco-2 cell was incubated with 0, 50 and 100 μM of zinc at various time points...
January 31, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28176790/architectural-and-functional-alterations-of-the-small-intestinal-mucosa-in-classical-whipple-s-disease
#19
H-J Epple, J Friebel, V Moos, H Troeger, S M Krug, K Allers, K Schinnerling, A Fromm, B Siegmund, M Fromm, J D Schulzke, T Schneider
Classical Whipple's disease (CWD) affects the gastrointestinal tract and rather elicits regulatory than inflammatory immune reactions. Mechanisms of malabsorption, diarrhea, and systemic immune activation are unknown. We here analyzed mucosal architecture, barrier function, and immune activation as potential diarrheal trigger in specimens from 52 CWD patients. Our data demonstrate villus atrophy and crypt hyperplasia associated with epithelial apoptosis and reduced alkaline phosphatase expression in the duodenum of CWD patients...
February 8, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28114245/human-milk-oligosaccharides-influence-intestinal-epithelial-cell-maturation-in-vitro
#20
Hannah D Holscher, Lars Bode, Kelly A Tappenden
OBJECTIVES: Human milk oligosaccharides (HMOs) are reported to promote epithelial cell differentiation in vitro. The aim of the present study was to assess induction of epithelial cell differentiation by individual and combined administration of 3 HMOs. METHODS: An in vitro epithelial model of the crypt-villus axis consisting of preconfluent HT-29, preconfluent Caco-2Bbe, and postconfluent Caco-2Bbe cells was used. Cultures were randomized to 17 treatments for 72 hours of incubation: low- and high-dose HMOs (3'sialyllactose [3'SL] at 0...
February 2017: Journal of Pediatric Gastroenterology and Nutrition
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