Important dietary carbohydrates such as fructose and sorbitol are incompletely absorbed in the normal small intestine. This malabsorption is sometimes associated with abdominal complaints and diarrhea development, symptoms indistinguishable from those of functional bowel disease. Recently, polymerized forms of fructose (fructans) also were implicated in symptom production in patients with irritable bowel syndrome (IBS). Evidence from uncontrolled and controlled challenge studies suggests that malabsorbed sugars (fructose, sorbitol, lactose) and fructans may act as dietary triggers for clinical symptoms suggestive of IBS. Further placebo-controlled studies are needed to obtain definite conclusions about the role of dietary sugar malabsorption in functional bowel disease.
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http://dx.doi.org/10.1007/s11894-009-0056-9 | DOI Listing |
Stem Cells Dev
December 2024
Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Ninety-nine percent of alpha-synuclein (α-syn) in the human body is distributed in erythrocytes. However, the role that α-syn plays in erythropoiesis remains unclear. To determine the effect of α-syn on erythroid differentiation, the erythroid cells, derived from human CD34+ progenitors in the umbilical cord, were cultured in a system composed of a series of cytokines and harvested after 6 days.
View Article and Find Full Text PDFBMC Plant Biol
December 2024
College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China.
Melatonin (MT) can improve plant resistance and fruit quality. The mechanism by which MT affects soluble sugar and organic acids accumulation in drupe fruits is not clear. In this study, 100 µmol/L MT was sprayed on the leaves of plum trees at the second stage of rapid fruit expansion (90 and 97 d after flowering), and the effects of MT on plum fruit quality and its effects on the soluble sugar-organic acid metabolism were investigated.
View Article and Find Full Text PDFFood Chem X
October 2024
Research Institute of Pomology Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning Province 125100, PR China.
Apple quality is closely related to its cultivar and origin. However, the apple quality characteristics of different cultivars and origins are unclear. The hypothesis that some quality indicators can effectively distinguish the cultivar and origin of apples.
View Article and Find Full Text PDFPlant Physiol Biochem
January 2025
College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China.
Carbohydrate metabolism plays an essential role in mediating quality and ripening of postharvest fruit. Previous work has demonstrated the regulatory role of methyl jasmonate (MeJA) in ripening of apple fruit. However, the role of MeJA in mediating carbohydrate metabolism of ripening apple fruit is unexplored.
View Article and Find Full Text PDFFood Chem X
December 2024
Institute of Agricultural Products Preservation and Processing Science and Technology, Tianjin Academy of Agricultural Sciences, National Engineering and Technology Research Center for Preservation of Agricultural Products (Tianjin), Tianjin 300384, China.
The aim of this study was to explore the effect of periodical negative air ions (NAI) on the quality of 'Fuji' apple fruit after treatment at 0, 30, 60, and 90 min every 4 weeks. NAI for 60 min decreased weight loss, mitigated decay, and maintained hardness of the apple fruit during the 40 weeks of storage. Treatment of fruits with NAI for 60 min enhanced the apple defense ability against pathogens by maintaining the cell wall integrity and improving the related-enzyme activities as well as accumulation of total phenols and flavonoids.
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