Biomaterial Database

Calcium malabsorption and absence of bone decalcination following intestinal shunt operation for obesity. A comparison of two types of operation. 1978

P Danö, and C Christiansen

Calcium absorption was studied in 23 patients before and one year after intestinal shunt operation for obesity. It decreased from 23 to 12% (p less than 0.02) after surgery, when the jejunum/ileum ratio was 36cm/12cm [type I], and only from 19 to 16% (p greater than 0.05), when the ratio was 12cm/36cm [type III]. It is suggested that the difference is due to variation in absorptive surface in the distal half of the small intestine and to a minor degree to change in external pancreatic function, bile acid metabolism, and fat digestion. Bone mineral content was lower in 37 obese than in normal subjects and underwent only minor changes (p greater than 0.01) 3 and 12 months after surgery, possible because of postoperative daily calcium and vitamin-D substitution.

UI	MeSH Term	Description	Entries
D007421	Intestine, Small	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.	Small Intestine,Intestines, Small,Small Intestines
D008286	Malabsorption Syndromes	General term for a group of MALNUTRITION syndromes caused by failure of normal INTESTINAL ABSORPTION of nutrients.	Malabsorption Syndrome,Syndrome, Malabsorption,Syndromes, Malabsorption
D008297	Male		Males
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D008903	Minerals	Native, inorganic or fossilized organic substances having a definite chemical composition and formed by inorganic reactions. They may occur as individual crystals or may be disseminated in some other mineral or rock. (Grant & Hackh's Chemical Dictionary, 5th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Mineral
D009765	Obesity	A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D001842	Bone and Bones	A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX.	Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
D002128	Calcium Metabolism Disorders	Disorders in the processing of calcium in the body: its absorption, transport, storage, and utilization.	Calcium Metabolism Disorder,Disorder, Calcium Metabolism,Disorders, Calcium Metabolism