Related Experiment Videos

Cardiovascular risk factors improve during 3 years of growth hormone therapy in Prader-Willi syndrome

D l'Allemand1, U Eiholzer, M Schlumpf

  • 1Foundation Growth Puberty Adolescence, Zurich, Switzerland.

Insights

Prader-Willi syndrome (PWS) children show early cardiovascular risks like obesity and abnormal lipids. Growth hormone therapy improves body composition and lipid profiles in these patients.

Area of Science:

  • Pediatric Endocrinology
  • Cardiovascular Health
  • Metabolic Disorders

Background:

  • Prader-Willi syndrome (PWS) is associated with cardiovascular risk factors, potentially linked to obesity or growth hormone (GH) deficiency.
  • Understanding these risk factors' patterns and interrelations in children with PWS is crucial for early intervention.

Purpose of the Study:

  • To investigate cardiovascular risk factors in children with PWS.
  • To assess the age-dependency and interrelations of these factors.
  • To evaluate the long-term effects of GH therapy on cardiovascular risk markers.

Main Methods:

  • Observational study of 23 children with PWS (aged 0.3-14.6 years).
  • Assessed body composition (fat mass, waist-to-hip ratio), lipid profiles (TG, LDL-C, HDL-C, Lp(a)), and apolipoproteins (Apo A-I, Apo B).
  • Monitored effects of GH therapy (0.037 mg/kg/day for ~3 years).

Main Results:

  • Children over 4 years exhibited increased body fat and abnormal waist-to-hip ratio.
  • Abnormalities in LDL-C, Apo B, HDL-C, and TG were noted in several participants.
  • GH therapy normalized body fat, waist-to-hip ratio, and improved LDL-C/HDL-C ratio by decreasing LDL-C and increasing HDL-C.

Conclusions:

  • Cardiovascular risk factors are prevalent in prepubertal children with PWS.
  • Growth hormone treatment positively impacts both body composition and lipid metabolism in PWS patients.
  • GH therapy offers a therapeutic strategy for mitigating cardiovascular risks in PWS.
Abstract

Related Concept Videos

Physical Growth During Infancy and Toddlerhood01:18

Physical Growth During Infancy and Toddlerhood

Physical growth is especially rapid during the first three years of life, with the greatest rate in the first few months after birth. Although children continue to gain height and weight throughout infancy and toddlerhood, the rate of growth gradually slows during the second and third years. At most ages, boys are typically slightly taller and heavier than girls, reflecting a common pattern of early physical development.Changes in Body ProportionsAs infants become toddlers, their body...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cellular Adaptation II: Hypertrophy01:26

Cellular Adaptation II: Hypertrophy

Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy: physiological...
Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
Thrombopoietin (TPO), mainly released by the liver,...
Cellular Adaptation III: Hyperplasia01:26

Cellular Adaptation III: Hyperplasia

Hyperplasia is an increase in the number of cells in a tissue or organ due to enhanced cell division. It is an adaptive, controlled response to stimuli such as injury, hormones, or stress, involving mitosis to produce genetically identical cells and support tissue repair and regeneration.Tissue CapacityCertain tissues, including the epidermis, intestinal epithelium, bone marrow, and fibroblasts, have a high potential for hyperplasia. Others, such as bone, cartilage, and smooth muscle, show...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...