Salmon calcitonin treatment by nasal spray in primary hyperparathyroidism.

Abstract:

:The hypocalcemic and hypophosphatemic effect of salmon calcitonin (sCT) given by intranasal (i.n.) spray to 12 patients with histological confirmed primary hyperparathyroidism (1 degree HPT) was studied. The concentration of ionized calcium in whole blood (B-Ca++), serum phosphate (S-P), magnesium (S-Mg), plasma sCT (Pl-sCT), and endogenous CT (hCT) was followed during five 24-hour periods with at least three days between. After period I (control day), 100 IU sCT was given intramuscularly (i.m.) in period II. In periods III-V, either 110, 200, or 400 IU of sCT were given intranasally (i.n.) in randomized order. Although B-Ca++ decreased from the baseline value with all four sCT treatments and at 4.5 hour on the control day (p less than 0.05-0.001), the i.n. sCT treatments had no significant hypocalcemic effect, as the change of the area under the B-Ca++ curve (delta AUC B-Ca++) for the three i.n. treatments was not significantly different from the control period (p less than 0.001, ANOVA). Only the i.m. injection of calcitonin had a calcium-lowering effect (p less than 0.001, ANOVA). Three subjects were considered nonresponders with a decrease in B-Ca++ less than 0.06 mmol/L. S-P decreased within three hours after 200 IU sCT i.n. and 100 IU i.m., but the S-Mg levels showed no consistent changes. The area under the curve for the Pl-sCT levels did not correlate with delta AUC B-Ca++ except for i.m. given sCT.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Bone

journal_title

Bone

authors

Tørring O,Bucht E,Sjöstedt U,Sjöberg HE

doi

10.1016/8756-3282(91)90016-c

subject

Has Abstract

pub_date

1991-01-01 00:00:00

pages

311-6

issue

5

eissn

8756-3282

issn

1873-2763

pii

8756-3282(91)90016-C

journal_volume

12

pub_type

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