BACKGROUND: Family studies and heritability estimates provide evidence for a genetic contribution to variation in the human life span. METHODS: We conducted a genome wide association study (Affymetrix 100K SNP GeneChip) for longevity-related traits in a community-based sample. We report on 5 longevity and aging traits in up to 1345 Framingham Study participants from 330 families.
Longevity can be explained by the free radical theory of aging, and caloric restriction (CR) studies showed that CR-induced lifespan extension is associated with the prevention of a decrease in oxidative stress. Non-enzymatic lipophilic antioxidants may play a pivotal role in our aging process, and are reflected in our dietary lifestyle and dietary supplementation. Their significance lies in their general good absorption and slow excretion within our body.
Okinawans, who have a different ethnicity and food cultural history to other Japanese nationals, and an exceptional longevity have been studied at home and as migrant groups in Hawaii and Brazil. Biomarkers for fish and soy intake and intervention studies indicate that these foods, along with seaweed and green vegetables are candidates for chronic non-communicable disease prevention.
The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
BACKGROUND: A significant component of the ability to survive to exceptional old age may be familial. This study assessed the prevalence of age-related diseases in the offspring of centenarians. METHODS: The health histories of centenarian offspring (n=177) and controls (n=166) were assessed from 1997-2000 using a cross-sectional study design. The offspring of 192 centenarian subjects enrolled in the nationwide New England Centenarian Study were recruited and enrolled.
Centenarians exist at the extreme of life expectancy and are rare. A number of pedigree and molecular genetic studies indicate that a significant component of exceptional longevity is genetically influenced. Furthermore, the recent discovery of a genetic locus on chromosome 4 indicates the powerful potential of studying centenarians for genetic factors that significantly modulate aging and susceptibility to age-related diseases. These studies include siblings and children of centenarians.
JAMA: the journal of the American Medical Association
CONTEXT: Individuals with exceptional longevity have a lower incidence and/or significant delay in the onset of age-related disease, and their family members may inherit biological factors that modulate aging processes and disease susceptibility. OBJECTIVE: To identify specific biological and genetic factors that are associated with or reliably define a human longevity phenotype.
Archives of Gerontology and Geriatrics. Supplement
In Western countries data from clinical and epidemiological studies have induced the public health offices to promote a great deal of advertising and informative campaigning for smoking reduction. Cigarette smoking has been clearly linked to the most common causes of death in the elderly and contributes to the higher death rate and disability rate associated with many chronic illnesses that are common in this age group.
The aim of the present study was to investigate the association between blood groups and life expectancy. We compared frequencies of ABO blood group in 269 centenarians (persons over 100 years) living in Tokyo and those in regionally matched controls (n=7153). Frequencies of blood types A, O, B, and AB in centenarians were 34.2, 28.3, 29.4, and 8.2%, respectively, while those in controls were 38.6, 30.1, 21.9, and 9.4%, respectively. Blood type B was observed more frequently in centenarians than in controls (chi(2)=8.41, P=0.04).
OBJECTIVES: To assess the cause of death for centenarians' offspring and controls. DESIGN: Cross-sectional study. SETTING: Community-based, nationwide sample. PARTICIPANTS: Family pedigree information was collected on 295 offspring of centenarians (from 106 families with a parent already enrolled in the nationwide New England Centenarian Study) and on 276 controls (from 82 control families) from 1997 to 2000. Controls were individuals whose parents were born in the same year as the centenarians but at least one of whom died at the average life expectancy.