Related Experiment Video
Updated: Jul 28, 2026

09:07
Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats
Published on: February 23, 2015
Estrogen for dementia-related aggression in elderly men
1Department of Pharmacy Practice, Campbell University, Buies Creek, NC, USA. pshelton@dhr.state.nc.us
The Annals of Pharmacotherapy
|August 31, 1999
Summary
Conjugated estrogens effectively reduced aggression in two elderly men with dementia. This treatment shows promise for managing behavioral symptoms in older adults with cognitive impairment.
Area of Science:
- Geriatric Psychiatry
- Neuropharmacology
- Dementia Research
Background:
- Aggression is a challenging behavioral symptom in elderly individuals with dementia.
- Current pharmacologic treatments for dementia-related aggression have limitations.
Observation:
- Two elderly men with Alzheimer and vascular dementia, respectively, exhibited significant aggression unresponsive to standard therapies.
- Conjugated estrogens were administered at 1.875 mg/d and 0.625 mg/d.
Findings:
- Conjugated estrogens led to a 75% reduction in physical aggression in Case 1.
- Conjugated estrogens resulted in an 80% decline in physical and sexual aggression and a 55% reduction in sexual comments in Case 2.
- Estrogen therapy was well-tolerated in both cases.
Implications:
- Conjugated estrogens may represent a viable alternative pharmacologic intervention for managing aggression in elderly men with dementia.
- Further research is warranted to establish the precise role and efficacy of estrogen therapy in this population.
Related Concept Videos
Alzheimer's Disease: Treatment
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
Menopause
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
Drug Dosing: Geriatric Patients
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacodynamics in Geriatric Patients: Effects of Age
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Dementia
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
The progression of dementia is generally gradual.
Alzheimer Disease l: Introduction
Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...

