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Related Concept Videos

Primary Healthcare Services01:30

Primary Healthcare Services

1.9K
Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
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Levels of Health Promotion and Illness Prevention01:26

Levels of Health Promotion and Illness Prevention

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Health promotion allows a person to control the determinants of health, resulting in an improved health status. It enhances the quality of life and reduces premature deaths. Health promotion and illness prevention programs help people make beneficial choices to reduce the risk of disease and disabilities. There are three health promotion and illness prevention levels: primary, secondary, and tertiary prevention.
In primary prevention, actions taken before disease onset prevent the disease from...
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Preventive Healthcare Services01:30

Preventive Healthcare Services

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Healthcare Agencies II01:17

Healthcare Agencies II

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There are various healthcare agencies in the United States—some of which are managed by religious institutions and others by different government branches.
Parish nursing is a growing specialty nursing profession that focuses on holistic healthcare, health promotion, and illness prevention. It blends professional nursing practice with a health ministry, focusing on health and healing within the context of a Christian community. Parish nurses serve as health educators, referral sources,...
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Methods Of Healthcare Delivery System01:26

Methods Of Healthcare Delivery System

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At the different levels of the healthcare system, we see varying methods of healthcare used. These methods include managed care systems, case management, and primary healthcare.
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
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Updated: Jan 8, 2026

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children

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Public Health.

Caimei Luo1, Ruihan Wang1, Feng Yang1

  • 1West China Hospital of Sichuan University, Chengdu, Sichuan, China.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
PubMed
Summary
This summary is machine-generated.

Higher scores on the Composite Dietary Antioxidant Index (CDAI) are linked to a lower risk of dementia and Alzheimer's disease (AD). This dietary approach may help reduce dementia risk by impacting inflammation and brain structure.

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Area of Science:

  • Nutritional Science
  • Neuroscience
  • Epidemiology

Background:

  • The Composite Dietary Antioxidant Index (CDAI) measures antioxidant-rich diets.
  • The link between CDAI and dementia risk was previously unexplored.
  • Understanding this relationship is crucial for public health.

Purpose of the Study:

  • To investigate the association between CDAI and dementia risk.
  • To explore CDAI's role in dementia subtypes, including Alzheimer's disease (AD) and vascular dementia (VD).
  • To elucidate the underlying mechanisms, focusing on inflammation and brain structure.

Main Methods:

  • Prospective analysis of 157,742 dementia-free UK Biobank participants.
  • CDAI calculated from dietary intake of six antioxidants via 24-hour recall.
  • Cox proportional hazards models and restricted cubic splines used to assess associations and non-linear correlations.
  • Mediation analyses explored inflammation markers and brain structures.

Main Results:

  • Higher CDAI scores showed a significant association with reduced risk of all-cause dementia and AD.
  • An L-shaped nonlinear association was observed, with risk decreasing significantly below specific CDAI thresholds.
  • Inflammation markers partially mediated the association; CDAI positively correlated with brain volumes in some analyses.

Conclusions:

  • A nonlinear, L-shaped association exists between CDAI and dementia/AD risk.
  • CDAI shows potential as a dementia biomarker and dietary intervention target.
  • Beneficial effects on inflammation and brain structure suggest underlying mechanisms.