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https://www.readbyqxmd.com/read/28097735/autoimmune-enteropathy-and-hepatitis-in-pediatric-heart-transplant-recipient
#1
Kimberly Lewis, Ryan Butts, J Antonio Quiros, Michelle Hudspeth, Katherine Twombley, Andrew Savage, Sally Self, Ali Burnette, Shaoli Sun
AIE is a rare disorder in children that presents with severe diarrhea and malabsorption, caused by immune-mediated damage to intestinal mucosa. AIE is often associated with various syndromes of immunodeficiency including IPEX syndrome (immune dysregulation, polyendocrinopathy and enteropathy, X-linked). Dysfunctional T regulatory cells are the source of pathology in both IPEX syndrome and AIE as they are essential in maintaining tolerance to self-antigens and eliminating autoreactive B cells. This case report describes a 10-year-old cardiac transplant and total thymectomy patient on chronic immunosuppression with tacrolimus that presented with AIE and extraintestinal manifestations of cyclical hepatitis...
January 17, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28089681/steatorrhea-and-hyperoxaluria-in-severely-obese-patients-before-and-after-roux-en-y-gastric-bypass
#2
Amber M Moreland, Carol A Santa Ana, John R Asplin, Joseph A Kuhn, Ross P Holmes, Jason A Cole, Elizabeth A Odstrcil, Thomas G Van Dinter, Juan G Martinez, John S Fordtran
BACKGROUND: Hyperoxaluria after Roux-en-Y gastric bypass (RYGB) is generally attributed to fat malabsorption. If hyperoxaluria is indeed caused by fat malabsorption, magnitudes of hyperoxaluria and steatorrhea should correlate. Severely obese patients, prior to bypass, ingest excess dietary fat, which can produce hyperphagic steatorrhea. The primary objective of the study was to determine whether urine oxalate excretion correlates with elements of fat balance in severely obese patients before and after RYGB...
January 12, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28062276/molecular-pathogenicity-of-novel-sucrase-isomaltase-mutations-found-in-congenital-sucrase-isomaltase-deficiency-patients
#3
Birthe Gericke, Mahdi Amiri, C Ronald Scott, Hassan Y Naim
BACKGROUND & AIMS: Congenital sucrase-isomaltase deficiency (CSID) is a genetic disorder associated with mutations in the sucrase-isomaltase (SI) gene. The diagnosis of congenital diarrheal disorders like CSID is difficult due to unspecific symptoms and usually requires invasive biopsy sampling of the intestine. Sequencing of the SI gene and molecular analysis of the resulting potentially pathogenic SI protein variants may facilitate a diagnosis in the future. This study aimed to categorize SI mutations based on their functional consequences...
January 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28043932/changes-in-presentation-of-celiac-disease-in-ireland-from-the-1960s-to-2015
#4
P Dominguez Castro, G Harkin, M Hussey, B Christopher, C Kiat, J Liong Chin, V Trimble, D McNamara, P MacMathuna, B Egan, B Ryan, D Kevans, R Farrell, V Byrnes, N Mahmud, R McManus
BACKGROUND & AIMS: Celiac disease is an immune-mediated enteropathy characterized with high heterogeneity in presentation among genetically predisposed individuals. In recent years, a change in the phenotypic presentation of celiac disease has been reported. We studied clinical presentation, from 1960 through 2015, in Ireland, which has a high incidence of celiac disease. METHODS: We performed a retrospective analysis of medical charts from patients diagnosed with celiac disease at 5 secondary referral centers in Ireland from 1960 through 2015 (n=749; median age, 56 years; age range 18-91 years)...
December 30, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28038428/ghrelin-upregulates-pept1-activity-in-the-small-intestine-epithelium-of-rats-with-sepsis
#5
Jingquan Liu, Bin Shi, Kai Shi, Guoguang Ma, Hongze Zhang, Xiaoli Lou, Hongxiang Liu, Shengxia Wan, Dongyu Liang
BACKGROUND: Sepsis causes nutritional substrate malabsorption; hence, preventing gut barrier problems and improving the nutritional status in sepsis is a compelling issue. AIMS: We tested whether ghrelin administration affects peptide transporter 1 (PepT1) activity in the intestinal epithelium of rats with sepsis. METHODS: Sixty male Sprague-Dawley rats were randomly divided into sham-operated, sepsis, and ghrelin-treated groups. The cecum of sham-operated rats was separated after laparotomy without ligation and perforation...
December 27, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28027914/vitamin-d-and-intestinal-calcium-transport-after-bariatric-surgery
#6
REVIEW
Anne L Schafer
Bariatric surgery is a highly effective treatment for obesity, but it may have detrimental effects on the skeleton. Skeletal effects are multifactorial but mediated in part by nutrient malabsorption. While there is increasing interest in non-nutritional mechanisms such as changes in fat-derived and gut-derived hormones, nutritional factors are modifiable and thus represent potential opportunities to prevent and treat skeletal complications. This review begins with a discussion of normal intestinal calcium transport, including recent advances in our understanding of its regulation by vitamin D, and areas of continued uncertainty...
December 24, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28027072/spectrum-of-drug-induced-chronic-diarrhea
#7
Nissy A Philip, Nazir Ahmed, Capecomorin S Pitchumoni
The evaluation of a patient with chronic diarrhea can be quite frustrating, as it is expensive and involves multiple diagnostic studies. Moreover, identification of a drug as a cause of chronic diarrhea is a challenge in patients taking multiple medications. The disease may either be associated with intestinal mucosal changes, mimicking diseases such as celiac disease, or purely functional, with no histopathologic change. Drug-induced diarrhea may or may not be associated with malabsorption of nutrients, and a clinical improvement may occur within days of discontinuation of the drug, or may take longer when associated with mucosal injury...
February 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28011645/in-vitro-and-in-vivo-analyses-reveal-profound-effects-of-fibroblast-growth-factor-16-as-a-metabolic-regulator
#8
Ingrid C Rulifson, Patrick Collins, Li Miao, Dana Nojima, Ki Jeong Lee, Miki Hardy, Jamila Gupte, Kelly Hensley, Kim Samayoa, Cynthia Cam, James B Rottman, Mike Ollmann, William G Richards, Yang Li
The discovery of brown adipose tissue (BAT) as a key regulator of energy expenditure has sparked interest in identifying novel soluble factors capable of activating inducible BAT (iBAT) to combat obesity. Using a high content cell-based screen, we identified Fibroblast Growth Factor (FGF) 16 as a potent inducer of several physical and transcriptional characteristics analogous to those of both classical BAT and iBAT. Over-expression of Fgf16 in vivo recapitulated several of our in vitro findings, specifically significant induction of Ucp1 gene and UCP1 protein expression in inguinal white adipose tissue (iWAT), a common site for emergent active iBAT...
December 23, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28002030/anti-hyperglycemic-activity-of-aegle-marmelos-l-corr-is-partly-mediated-by-increased-insulin-secretion-%C3%AE-amylase-inhibition-and-retardation-of-glucose-absorption
#9
Prawej Ansari, Nadia Afroz, Shahnaz Jalil, Sohel Bin Azad, Md Gazi Mustakim, Sabbir Anwar, S M Nazmul Haque, Saad Mosharraf Hossain, Ramisha Rifat Tony, J M A Hannan
BACKGROUND: Aegle marmelos (commonly known as Bael, golden apple) was formerly described to have anti-hyperglycemic activity. The present study aimed to explore the possible effects, in depth, of A. marmelos extracts on carbohydrate absorption, glucose utilization, and α-amylase inhibition and insulin content in pancreases of type 2 diabetic rats. METHODS: This research begins with fasting blood glucose and oral glucose tolerance test (OGTT) to evaluate the primary anti-hyperglycemic effect in chemically induced type 2 diabetic rats...
January 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28000520/small-bowel-villous-atrophy-celiac-disease-and-beyond
#10
Luca Elli, Federica Branchi, Reena Sidhu, Stefano Guandalini, Asaad Assiri, Firas Rinawi, Raanan Shamir, Prasenjit Das, Govind K Makharia
Small bowel villous atrophy can represent a diagnostic challenge for gastroenterologists and pathologists. In Western countries small bowel atrophy and mild non-atrophic alterations are frequently caused by celiac disease. However, other pathology can mimic celiac disease microscopically, widening the differential diagnosis. The several novelties on this topic and the introduction of the device-assisted enteroscopy in the diagnostic flowchart make an update of the literature necessary. Areas covered: In this review, a description of the different clinical scenarios when facing with small bowel mucosal damage, particularly small bowel atrophy, is described...
December 29, 2016: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27995414/na-h-exchanger-3-inhibitor-diminishes-hepcidin-enhanced-duodenal-calcium-transport-in-hemizygous-%C3%AE-globin-knockout-thalassemic-mice
#11
Narattaphol Charoenphandhu, Kamonshanok Kraidith, Kornkamon Lertsuwan, Chanakarn Sripong, Panan Suntornsaratoon, Saovaros Svasti, Nateetip Krishnamra, Kannikar Wongdee
Recent investigation has shown that the liver-derived iron-regulating hormone, hepcidin, can potentiate intestinal calcium absorption in hemizygous β-globin knockout thalassemic (BKO) mice. Since the upregulation of Fe(2+) and H(+) cotransporter, divalent metal transporter (DMT)-1, has been shown to correlate with thalassemia-induced intestinal calcium absorption impairment, the inhibition of the apical Na(+)/H(+) exchanger (NHE)-3 that is essential for cytoplasmic pH regulation and transepithelial sodium absorption was hypothesized to negatively affect hepcidin action...
December 19, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27977357/coeliac-disease
#12
Lynne Pearce
Essential facts [Figure: see text] Coeliac disease is a lifelong autoimmune condition where the body reacts to eating gluten, a protein found in wheat, rye and barley. This leads to chronic inflammation of the small intestine and can result in malabsorption of nutrients.
December 14, 2016: Nursing Standard
https://www.readbyqxmd.com/read/27971306/unspecified-intestinal-malabsorption-associated-with-angiotensin-receptor-blocker-therapy-results-from-a-nationwide-population-based-study-in-italy-and-germany
#13
C Ripellino, N Cataldo, C Scarpignato
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27940670/environmental-enteric-dysfunction-and-growth-failure-stunting-in-global-child-health
#14
REVIEW
Victor Owino, Tahmeed Ahmed, Michael Freemark, Paul Kelly, Alexander Loy, Mark Manary, Cornelia Loechl
Approximately 25% of the world's children aged <5 years have stunted growth, which is associated with increased mortality, cognitive dysfunction, and loss of productivity. Reducing by 40% the number of stunted children is a global target for 2030. The pathogenesis of stunting is poorly understood. Prenatal and postnatal nutritional deficits and enteric and systemic infections clearly contribute, but recent findings implicate a central role for environmental enteric dysfunction (EED), a generalized disturbance of small intestinal structure and function found at a high prevalence in children living under unsanitary conditions...
December 2016: Pediatrics
https://www.readbyqxmd.com/read/27929465/using-multi-fluorinated-bile-acids-and-in-vivo-magnetic-resonance-imaging-to-measure-bile-acid-transport
#15
Jessica Felton, Kunrong Cheng, Anan Said, Aaron C Shang, Su Xu, Diana Vivian, Melissa Metry, James E Polli, Jean-Pierre Raufman
Along with their traditional role as detergents that facilitate fat absorption, emerging literature indicates that bile acids are potent signaling molecules that affect multiple organs; they modulate gut motility and hormone production, and alter vascular tone, glucose metabolism, lipid metabolism, and energy utilization. Changes in fecal bile acids may alter the gut microbiome and promote colon pathology including cholerrheic diarrhea and colon cancer. Key regulators of fecal bile acid composition are the small intestinal Apical Sodium-dependent Bile Acid Transporter (ASBT) and fibroblast growth factor-19 (FGF19)...
November 27, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27904960/active-and-passive-involvement-of-claudins-in-the-pathophysiology-of-intestinal-inflammatory-diseases
#16
REVIEW
Christian Barmeyer, Michael Fromm, Jörg-Dieter Schulzke
Intestinal inflammatory diseases, four of which are discussed here, are associated with alterations of claudins. In ulcerative colitis, diarrhea and antigen entry into the mucosa occurs. Claudin-2 is upregulated but data on other claudins are still limited or vary (e.g., claudin-1 and -4). Apart from that, tight junction changes contribute to diarrhea via a leak flux mechanism, while protection against antigen entry disappears behind epithelial gross lesions (erosions) and apoptotic foci. Crohn's disease is additionally characterized by a claudin-5 and claudin-8 reduction which plays an active role in antigen uptake already before gross lesions appear...
January 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27900603/enteropathy-associated-t-cell-lymphoma
#17
REVIEW
Sarah Ondrejka, Deepa Jagadeesh
Enteropathy-associated T-cell lymphoma is a rare neoplasm with uniformly aggressive features that arises from intestinal T-cells. There is strong evidence supporting its association as a dire complication of celiac disease. The clinical presentation can vary from malabsorption and abdominal pain to an acute abdominal emergency. Originally, it was divided into types I and II in World Health Organization (WHO) classification schemes, reflective of epidemiology and differences in clinicopathologic features. The debate over the degree of separation of the two types is ongoing as new data emerges regarding the pathogenetics...
December 2016: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/27875355/novel-mutations-in-epcam-cause-congenital-tufting-enteropathy
#18
Wenjuan Tang, Taosheng Huang, Zhongyao Xu, Ying Huang
BACKGROUND AND AIMS: Congenital tufting enteropathy (CTE) is a rare autosomal recessive form of intractable diarrhea of infancy. Patients develop chronic diarrhea within days after birth, leading to severe malabsorption and significant mortality. CTE is characterized by subtotal villous atrophy with crypt hyperplasia. Typical features include abnormal villi in the intestinal epithelium and disorganization of surface enterocytes with focal crowding, resembling tufts. The pathogenesis of CTE remains poorly understood...
November 21, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27849236/treatment-of-short-bowel-syndrome-in-children-value-of-the-intestinal-rehabilitation-program
#19
Uenis Tannuri, Fabio de Barros, Ana Cristina Aoun Tannuri
The main cause of acute intestinal failure is short bowel syndrome, generally as a result of resection of extensive segments of small intestine. As a result, the main symptoms are watery diarrhea, malabsorption syndrome, chronic malnutrition, and death, if the patient is not properly treated. If the length of the remaining intestine is greater than 30 cm, complete adaptation is possible and the patient may not require parenteral nutrition. The currently recommended treatment includes the use of prolonged parenteral nutrition and enteral nutrition, always aimed at constant weight gain, in conjunction with surgeries aimed at elongating the dilated bowel...
September 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27830928/oral-iron-absorption-test-with-ferrous-bisglycinate-chelate-in-children-with-celiac-disease-preliminary-results
#20
Giuseppe A Mazza, Luisa Pedrelli, Elisabetta Battaglia, Laura Giancotti, Roberto Miniero
BACKGROUND: Celiac disease (CD) is an immunologically-mediated enteropathy resulting in small-bowel mucosal villous atrophy with crypt hyperplasia. Iron malabsorption is usually observed in CD. Only few studies investigated oral iron absorption in subjects with gastrointestinal diseases and Iron Deficiency Anemia (IDA), using the oral iron absorption test (OIAT). We considered useful to investigate the OIAT, using Ferrous Bisglycinate Chelate (FBC), in patients with CD at diagnosis or on Gluten Free Diet (GFD) from at least 1 year...
November 10, 2016: Minerva Pediatrica
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