Ultrastructural changes of colonic mucosa in patients with chronic laxative misuse. 1978

J F Riemann, and J Schenk, and R Ehler, and H Schmidt, and H Koch

Laxatives are amongst the most widely used and misused drugs. Especially the "irritant chathartics" are associated with severe cell poisoning. Electrolyte disturbances like potassium deficiency may occur as a result of enhanced potassium secretion into the colon. Ultrastructural studies of patients with chronic laxative misuse demonstrate, that this functional disorder is correlated with damage of the colonic epithelial cells consisting in stereotyped lesions as changes in microvilli, reduction and structural defects of cytoplasmic organelles and an increase of lysosomes and dense bodies. The lesions have a focal distribution and may explain the potassium loss from a morphological point of view.

UI MeSH Term Description Entries
D007413 Intestinal Mucosa Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI. Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D002400 Cathartics Agents that are used to stimulate evacuation of the bowels. Bowel Evacuant,Bowel Preparation Solution,Cathartic,Purgative,Purgatives,Bowel Evacuants,Bowel Preparation Solutions,Evacuant, Bowel,Evacuants, Bowel,Preparation Solution, Bowel,Preparation Solutions, Bowel,Solution, Bowel Preparation,Solutions, Bowel Preparation
D003106 Colon The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON. Appendix Epiploica,Taenia Coli,Omental Appendices,Omental Appendix,Appendices, Omental,Appendix, Omental
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014883 Water-Electrolyte Imbalance Disturbances in the body's WATER-ELECTROLYTE BALANCE. Imbalance, Water-Electrolyte,Imbalances, Water-Electrolyte,Water Electrolyte Imbalance,Water-Electrolyte Imbalances
D019966 Substance-Related Disorders Disorders related to substance use or abuse. Chemical Dependence,Drug Abuse,Drug Addiction,Drug Dependence,Drug Habituation,Drug Use Disorder,Drug Use Disorders,Organic Mental Disorders, Substance-Induced,Substance Abuse,Substance Dependence,Substance Related Disorder,Substance Use,Substance Use Disorder,Substance Use Disorders,Prescription Drug Abuse,Substance Addiction,Abuse, Drug,Abuse, Prescription Drug,Abuse, Substance,Addiction, Drug,Addiction, Substance,Chemical Dependences,Dependence, Chemical,Dependence, Drug,Dependence, Substance,Dependences, Chemical,Disorder, Drug Use,Disorder, Substance Related,Disorder, Substance Use,Disorders, Substance Related,Drug Abuse, Prescription,Habituation, Drug,Organic Mental Disorders, Substance Induced,Related Disorder, Substance,Related Disorders, Substance,Substance Abuses,Substance Uses,Use, Substance

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