The clearance of synthetic luteinizing hormone releasing hormone (LH-RH) after intravenous injection has been investigated in man. Thirteen tests were performed in ten subjects, four of whom were normal, the other six had proven disease of the hypothalamo-pituitary region. The rate of disappearance of LH-RH from the circulation could be represented as a double exponential with half-times of the two components of 5·3 and 27·4 min respectively. The initial volume of distribution was 11·1 ± 1·6 (s.d.) 1 and the metabolic clearance rate 1480 ± 170 (s.d.) 1/day. There was no difference in any of these parameters between normal and abnormal subjects. Between 0·75 and 2·8% of the injected dose was excreted in the urine within 8 h, of which 48% was excreted in the first hour. The daily production rates of LH-RH were calculated from the urinary excretion rates; these gave higher results than production rates calculated from the blood metabolic clearance rate. Possible reasons for this are discussed.
Journal of Endocrinology is committed to supporting researchers in demonstrating the impact of their articles published in the journal.
The two types of article metrics we measure are (i) more traditional full-text views and pdf downloads, and (ii) Altmetric data, which shows the wider impact of articles in a range of non-traditional sources, such as social media.
More information is on the Reasons to publish page.
| Sept 2018 onwards | Past Year | Past 30 Days | |
|---|---|---|---|
| Full Text Views | 1 | 1 | 0 |
| PDF Downloads | 1 | 0 | 0 |
Online ISSN: 1479-6805
Print ISSN: 0022-0795
Strengthening biomedical communities
to advance science and health
CONTACT US
Bioscientifica Ltd | Starling House | 1600 Bristol Parkway North | Bristol BS34 8YU | UK
Bioscientifica Ltd | Registered in England no 3190519
