Effect of Recombinant Human Growth Hormone on Cellular Sodium Metabolism

1994 ◽  
Vol 86 (3) ◽  
pp. 233-237 ◽  
Author(s):  
Hans Herlitz ◽  
Olof Jonsson ◽  
Bengt-Åke Bengtsson

1. The effect of treatment with recombinant human growth hormone on urinary sodium excretion, total body water, the renin-angiotensin system and erythrocyte sodium metabolism was investigated in 16 adults with growth hormone deficiency. 2. Total body water was determined by isotopic dilution, and erythrocyte electrolyte contents were analysed using flame photometry. The rate of sodium influx and the efflux rate constant of sodium were calculated from values of 22Na in erythrocytes in vitro. 3. One week of treatment with recombinant human growth hormone caused a decrease in urinary sodium excretion in 9/10 patients and an increase in erythrocyte sodium content. Total body water, plasma renin activity, angiotensin II concentration and transmembrane sodium transport were unaltered. 4. Six months of treatment with recombinant human growth hormone caused significant increases in total body water, erythrocyte sodium content and sodium transmembrane influx. Plasma renin activity tended to increase, whereas blood pressure and serum sodium and potassium concentrations remained unchanged. After 6 months on recombinant human growth hormone total body water showed a significant negative correlation with plasma renin activity. 5. The enhanced erythrocyte sodium transport, if this reflects what happens in the renal tubular cell, combined with a decrease in urinary sodium excretion, during treatment with recombinant human growth hormone could indicate an increase in tubular sodium reabsorption induced by the hormone. An increased plasma renin activity associated with the lack of blood pressure rise would reinforce sodium and water retention.

2018 ◽  
Vol 50 (09) ◽  
pp. 675-682 ◽  
Author(s):  
Patrícia Tosta-Hernandez ◽  
Adriana Siviero-Miachon ◽  
Nasjla da Silva ◽  
Andrea Cappellano ◽  
Marcelo Pinheiro ◽  
...  

AbstractCraniopharyngioma is a sellar/suprasellar benign tumor whose aggressiveness may imply in endocrine disturbances (hypothalamic obesity and hormone deficiencies). Fifty-seven patients were evaluated according to clinical characteristics, hypothalamic involvement, type of treatment, anthropometric variables, adiposity indexes (body mass index Z score category at diagnosis and post-treatment, total body fat, visceral adipose tissue, and metabolic syndrome components) and analyzed through multiple regression and logistic models. Patients were stratified according to growth hormone deficiency and recombinant human growth hormone use. Mean ages at diagnosis and at study evaluation were 9.6 and 16.6 years old, respectively. A set of 43/57 (75.4%) patients presented with important hypothalamic involvement, 24/57 (42.1%) received surgical treatment and cranial radiotherapy, and 8/57 (14%) interferon-α exclusively. Fifty-five patients (96.5%) were considered growth hormone deficient, and 26/57 (45.6%) grew despite no recombinant human growth hormone replacement therapy. At diagnosis, 12/57 (21%) patients were obese, and 33/57 (57.9%) at study evaluation, and after 3.2 years (median) post first therapy. There was no influence of height Z score on body mass index Z score. Body mass index Z score at diagnosis positively influenced body mass index Z score, total body fat, waist circumference and the presence of the metabolic syndrome post-treatment. Replacement of recombinant human growth hormone decreased total body fat and visceral adipose tissue. Craniopharyngioma patients worsened body mass index Z score category 3.2 years (median) after first treatment. Body mass index Z score increased due to real weight gain, without height decrease. Replacement of recombinant human growth hormone had beneficial effect on adiposity.


2020 ◽  
Vol 33 (12) ◽  
pp. 1577-1588
Author(s):  
George Paltoglou ◽  
Ioannis Dimitropoulos ◽  
Georgia Kourlaba ◽  
Evangelia Charmandari

AbstractObjectivesIdiopathic short stature (ISS) is a recognized, albeit a controversial indication for treatment with recombinant human growth hormone (rhGH).The objective of the present study was to conduct a systematic review of the literature and meta-analyses of selected studies about the use of rhGH in children with ISS on linear growth and adult height (AH).MethodsA systematic literature search was conducted to identify relevant studies published till February 28, 2017 in the following databases: Medline (PubMed), Scopus and Cochrane Central Registry of Controlled Trials. After exclusion of duplicate studies, 3,609 studies were initially identified. Of those, 3,497 studies were excluded during the process of assessing the title and/or the abstract. The remaining 112 studies were evaluated further by assessing the full text; 21 of them fulfilled all the criteria in order to be included in the current meta-analysis.ResultsChildren who received rhGH had significantly higher height increment at the end of the first year, an effect that persisted in the second year of treatment and achieved significantly higher AH than the control group. The difference between the two groups was equal to 5.3 cm (95% CI: 3.4–7 cm) for male and 4.7 cm (95% CI: 3.1–6.3 cm) for female patients.ConclusionIn children with ISS, treatment with rhGH improves short-term linear growth and increases AH compared with control subjects. However, the final decision should be made on an individual basis, following detailed diagnostic evaluation and careful consideration of both risks and benefits of rhGH administration.


Sign in / Sign up

Export Citation Format

Share Document