Vitamin-D Absorption After Partial Gastrectomy

Preserving Duodenal Passage for Bone Mineralization: Billroth I versus Billroth II Reconstruction After Partial Gastrectomy in Growing Minipigs

“…In gastrectomized patients, most studies report a decrease in serum 25(OH)D3 [15,[33][34][35][36]. Impaired absorption, insufficient intake, or both have been suggested as the cause of low 25(OH)D after gastrectomy [16,37,38]. Since vitamin D intake and exposure to ultraviolet B radiation was identical in both groups in our study, vitamin D malabsorption may be the major cause of low 25(OH) D3 in BII animals because the decrease in circulating 25(OH)D concentration does not seem to be related to a decrease in the activity of the D 25-hydroxylase in the absence of liver disease.…”

New Observations on the Absorption of ⁴⁷Ca in Patients with Partial Gastrectomy

“…Causal factors include: (1) low calcium intake result ing from partial intolerance of milk and milk products (8,13,18,19); (2) de creased absorption of calcium from food as a result of the rapid evacuation of the stomach stump (10); (3) secondary jejunitis (11,20); (4) exclusion of the duodenum from the absorptive circuit in Billroth II types (14, 15); (5) the socalled 'blind-loop syndrome' (11); (6) defective bile and pancreatic juice release and poor admixture with food resulting in a steatorrhea and decreased vitamin D absorption (24); (7) formation of insoluble Ca-soaps. Gregory and Van Ueleft (12), however, found Ca malabsorption in only 5 out of 25 gastrectomized patients.…”

Influence of Lactose Intolerance on the Bones of Patients after Partial Gastrectomy

“…24], inadequate vitamin D absorption [4,9,30], We decided, therefore, to investigate the influence of intolerance on the con dition of bones in a group of patients after partial gastrectomy, followed-up in our department.…”