| Abstract: | In eight normal pregnant women and in eighteen women with a family history of diabetes, plasma calcitonin (CT), parathyroid hormone (PTH), insulin and glucagon variations and total plasma calcium levels were investigated. Calcitonin, parathyroid hormone and glucagon were all increased during the 2nd and 3rd trimester of pregnancy in normal women (N.W.) and in women with a family history of diabetes (W.F.H.D.). Plasma calcitonin levels were statistically significantly different between the two groups only in the 3rd trimester (118 +/- 4.9 vs 139 +/- 3.6 pg/ml p less than 0.01 in N.W. and W.F.H.D. respectively). Total plasma calcium levels were decreased significantly in the 3rd trimester in both groups: 3rd vs 1st trimester p less than 0.005 and p less than 0.001 in N.W. and W.F.H.D. respectively. Statistically significant difference between the two groups in total insulinemic area (p less than 0.001), in the rapid phase area (p less than 0.01) and insulinogenic index (p less than 0.05) were observed in the 3rd trimester. |
