The effect of growth hormone (GH) replacement therapy on sympathetic nerve hyperactivity in hypopituitary adults: a double-blind, placebo-controlled, crossover, short-term trial followed by long-term open GH replacement in hypopituitary adults.

What Was Tested

The paper reports a study of Exogenous HGH, sermorelin & older GHRPs (why they're passed over), published as a randomized controlled trial.

Who Took Part

The study group was 10 patients.

By PubMed's age tags, the people studied were middle-aged adults and older adults, both men and women.

Sympathetic nerve activity to the muscle vascular bed (MSA) expressed as burst frequency (bursts/min) and incidence (bursts/100 heartbeats) was recorded in 10 hypopituitary patients (aged 48-69 years), before and after acute (1 week) randomized, double-blind, crossover treatment with a 1-month washout period and chronic (1 year) GH replacement treatment.

How the Study Was Run

The design is described as randomized, double-blind and crossover.

Because people in this Exogenous HGH, sermorelin & older GHRPs (why they're passed over) study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

As a double-blind Exogenous HGH, sermorelin & older GHRPs (why they're passed over) study, the assignments were hidden from both participants and investigators until the end.

Each person switched between Exogenous HGH, sermorelin & older GHRPs (why they're passed over) and the comparison at some point, usually with a gap in between.

What Was Measured

Topics PubMed links to this paper include Blood Pressure, Body Water, Cardiac Output, Glucose Tolerance Test, Hormone Replacement Therapy, Human Growth Hormone and Hypopituitarism.

What This Means in Plain Language

The paper is a randomized, double-blind and crossover study of Exogenous HGH, sermorelin & older GHRPs (why they're passed over) in 10 patients.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The abstract goes on to report its results in about 5 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2003 (Journal of hypertension), a journal based in Netherlands.

More context: the Exogenous HGH, sermorelin & older GHRPs (why they're passed over) compound page, all human trials.