Related Experiment Video
Updated: Aug 8, 2026

14:09
Genetic Studies of Human DNA Repair Proteins Using Yeast as a Model System
Published on: March 18, 2010
[Werner's syndrome and endocrine disorders]
B Zantour1, R Messaoud, M Zouali
1Service de médecine interne et endocrinologie, CHU Tahar Sfar, Mahdia, Tunisie.
Annales D'Endocrinologie
|August 12, 2003
Summary
Werner's syndrome, a genetic disorder from WRN gene mutation, causes premature aging and scleroderma-like skin changes. Comprehensive metabolic and endocrine evaluations are crucial for managing associated conditions and improving patient outcomes.
Area of Science:
- Genetics
- Endocrinology
- Dermatology
Background:
- Werner's syndrome is a rare autosomal recessive disorder caused by WRN gene mutations.
- It leads to premature aging and age-related diseases, including skin changes resembling scleroderma.
Observation:
- A 41-year-old man with consanguineous parents presented with hypoglycemia and sexual impotence.
- Clinical diagnosis of Werner's syndrome was confirmed by characteristic features and skin biopsy showing a scleroderma-like appearance.
Findings:
- Metabolic disorders included insulin-requiring diabetes and hypertriglyceridemia.
- Endocrinologic investigations revealed hypothyroidism, hypogonadism, adrenal insufficiency, and GH deficiency.
- Associated conditions were osteoporosis, atherosclerosis, and cataracts.
Implications:
- Early and thorough metabolic and endocrine assessments are vital in Werner's syndrome patients.
- Managing these associated disorders can significantly improve patient prognosis and quality of life.
More Related Videos
Related Concept Videos
Adrenal Gland Disorders
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Disorders of the Female Reproductive System
The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
Hyperthyroidism II: Pathophysiology
Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hypothyroidism II: Pathophysiology
Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Cushing Syndrome I: Introduction
Cushing syndrome refers to the collection of clinical manifestations that arise when tissues are exposed to excessive amounts of cortisol or cortisol-like medications over an extended period. Cortisol, a glucocorticoid produced by the adrenal cortex, regulates metabolism, immune responses, and the body’s adaptation to stress. When its concentration remains chronically elevated, these physiological pathways become dysregulated, resulting in the characteristic features of the syndrome.Exogenous...
Cushing Syndrome II: Pathophysiology
Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...

