Gross Changes in Adrenal Glands in Suicidal and Sudden Death Cases: A Postmortem Study

Area of Science:

• Forensic Medicine and Toxicology
• Endocrinology
• Pathology

Background:

• Chronic stress disrupts hypothalamic-pituitary-adrenal axis homeostasis, potentially causing adrenal gland hypertrophy and hyperplasia.
• Suicide is often linked to chronic stress, while sudden death typically involves acute stress.

Purpose of the Study:

• To investigate gross morphological differences in adrenal glands between individuals who died by suicide and those who died suddenly.
• To determine if adrenal gland changes can differentiate between chronic and acute stress.

Main Methods:

• An analytical study involving 100 suicide cases and 20 sudden death controls.
• Adrenal glands, kidneys, and peri-renal fat were examined post-mortem.
• Adrenal gland weight and volume were measured and compared between groups, considering factors like sex, age, height, and weight.

Main Results:

• The left adrenal gland was heavier than the right in suicide cases, unlike controls where the right was heavier.
• Adrenal gland weight was significantly associated with individual height in both groups.
• Relative adrenal gland weight was significantly higher in the suicide group, suggesting a link to chronic stress.

Conclusions:

• Adrenal gland appearance can reflect the body's response to stress relative to the mode of death.
• Increased left adrenal gland weight may indicate chronic stress exposure.
• Relative adrenal weight is a potential specific indicator for chronic stress in suicidal cases, while volume is unreliable for differentiating stress types.