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Effect of Growth Hormone in Metabolic Syndrome

2014-08-27 03:45:30 | BioPortfolio

Summary

Investigating the effect of low dose growth hormone therapy on body fat composition, insulin sensitivity and metabolic profiles in middle-aged men with metabolic syndrome and low insulin-like growth factor (IGF-1) level.

Description

Metabolic syndrome, a constellation of glucose intolerance, hypertension, dyslipidemia, obesity, pro-inflammatory and prothrombotic state culminating to development of premature cardiovascular diseases is a serious public health problem with significant impact on life expectancy, societal productivity and quality of life of those afflicted with it. Insulin resistance has been proposed as the key linking factor for the metabolic syndrome. Although the underlying mechanism for the development of insulin resistance, diabetes and metabolic syndrome is not fully understood, increasing evidence suggests that neurohormonal dysregulation plays a pivotal role in causing this growing health hazard. In our previous study of 307 middle-aged men, low insulin-like growth factor (IGF)-1 level was independently associated with insulin resistance and metabolic syndrome, especially amongst those with positive family history of diabetes. Replacement with growth hormone has been shown by other researchers to reduce body fat and improve metabolic profiles in patients with adult growth hormone deficiency and type 2 diabetes.

We hypothesize that treatment with growth hormone can lead to reduction of body fat, insulin resistance and cardiovascular risk factors in men with metabolic syndrome. This will be a 12-month prospective, randomized, double-blind, placebo-controlled study using growth hormone treatment in middle-aged men with metabolic syndrome. The primary outcome measure will be body fat distribution, including changes in visceral and mesenteric fat, whereas secondary outcome measure will be insulin sensitivity, and tertiary outcome will be variable parameters of metabolic syndrome.

The results of this study will have important impact on the treatment of patients with metabolic syndrome, and our understanding of the role of growth hormone in the pathogenesis of insulin resistance, diabetes and metabolic syndrome.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Metabolic Syndrome

Intervention

Growth hormone

Location

Prince of Wales Hospital, The Chinese University of Hong Kong
Hong Kong SAR
China

Status

Not yet recruiting

Source

Chinese University of Hong Kong

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:45:30-0400

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Medical and Biotech [MESH] Definitions

An autosomal recessive disorder characterized by short stature, defective GROWTH HORMONE RECEPTOR, and failure to generate INSULIN-LIKE GROWTH FACTOR I by GROWTH HORMONE. Laron syndrome is not a form of primary pituitary dwarfism (GROWTH HORMONE DEFICIENCY DWARFISM) but the result of mutation of the human GHR gene on chromosome 5.

A 191-amino acid polypeptide hormone secreted by the human adenohypophysis (PITUITARY GLAND, ANTERIOR), also known as GH or somatotropin. Synthetic growth hormone, termed somatropin, has replaced the natural form in therapeutic usage such as treatment of dwarfism in children with growth hormone deficiency.

A pituitary tumor that secretes GROWTH HORMONE. In humans, excess HUMAN GROWTH HORMONE leads to ACROMEGALY.

A form of dwarfism caused by complete or partial GROWTH HORMONE deficiency, resulting from either the lack of GROWTH HORMONE-RELEASING FACTOR from the HYPOTHALAMUS or from the mutations in the growth hormone gene (GH1) in the PITUITARY GLAND. It is also known as Type I pituitary dwarfism. Human hypophysial dwarf is caused by a deficiency of HUMAN GROWTH HORMONE during development.

A polypeptide that is secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Growth hormone, also known as somatotropin, stimulates mitosis, cell differentiation and cell growth. Species-specific growth hormones have been synthesized.

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