GERON chap2
67 flashcards · Other · by KRYSTEL ANN A MARTIN
The process of growing older than begins at birth
Aging
Explain biological aging as resulting from a complex predetermined factors or process
Nonstochastic theories
View the effects of biological aging as resulting from random assaults from both the internal and external environment.
Stochastic Theories
is the progressive loss of function.
Biologic aging
It can be viewed as a balance of positive factors such as healthy diet, regular exercise, and coping resources and negative factors such as obesity, unhealthy lifestyle, chronic illness, and stress that exceeds the individual's coping resoures
biologic aging
is a multifactorial process involving genetics, oxidative stress, diet, and environment
Biologic Aging
Two categories of biologic aging theories are
Stochastic Theories Nonstochastic Theories
Stochastic Theories on Biologic Aging:
Cross-Linking Theory Free radicals and Lipofuscin Theory Wear and tear Theories Evolutionary Theories Biogerontology Theory
Nonstochastic Theories of Biologic aging are:
Genetic Theories Apoptosis (programmed cell death theory) Neuroendocrine and Neurochemical Theories Autoimmune Reactions (Immunologic Theory) Radiation Theory Environmental Theories Nutrition Theories
Propose that aging is due to chance
Stochastic Theories of Biologic Aging
Avers that over time and as a result of exposure to chemicals and radiation in the environment, cross-links form between lipids, proteins, and carbohydrates as well as nucleic acids
Cross-Linking Theory
Proposes that a free radical is highly reactive atom or molecule that carries an unpaired electron and thus seeks to combine with another molecule causing an oxidative process
Free radicals and Lipofuscin theories
can ultimately disrupt cell membranes and alter DNA and protein synthesis
Oxidative stress
are natural byproducts of normal cellular processes and are also created by such environmental factors such as smog, tobacco, smoke, radiation, pesticides and other pollutants
Free radicals
a lipoprotein byproduct of oxidation that can be seen only under a fluorescent microscope in the aging process
lipofuscin "age pigments"
Attribute aging to repeated use and injury of the body over time as it performs its highly specialized functions.
Wear and tear theories
These theories of aging are related to genetics and hypothesize that the differences in the aging process and longevity of various species occur due to interplay between the process of mutation and natural selection
Evolutionary Theories
Groups of Theories that relate aging to evolution
Mutation Accumulation Theory Antagonistic Pleiotropy Theory Disposable Soma Theory
Suggests that aging occurs due to a declining force of natural selection with age.
Mutation accumulation theory
suggests that accumulated mutant genes that have negative effects in late life may have had beneficial effects in early life
Antagonistic Pleiotropy Theory
Proposes that aging is related to the use of the body's energy rather than to genetics
Disposable Soma Theory
This theory believes that bacteria, fungi, viruses, and other organisms are responsible for certain physiologic changes during the aging process
Biogerontology Theory
Hypothesize that aging changes result from a complex predetermined process that genes program age related molecular and cellular events
Nonstochastic Theories of Biologic aging
Proposes that there is an impairment in the ability of the cell to continue dividing
Apoptosis (programmed cell death)
is the process of programmed cell death that continuously occurs throughout life due to biochemical events
Apoptosis
advocates that animals and humans are born with genetic program or biological clock that predetermines the life span
The programmed theory of aging
this theory holds that genetic mutations are responsible for aging by causing organ decline as a result of self-perpetuating cellular mutations
the error theory
Proposes declining functional capacity of the immune system as the basis for aging
Autoimmune reactions (immunologic theory)
It believes that aging not a passive wearing out of systems but an active self-destruction mediated by the immune system
Autoimmune reactions (immunologic theory)
It is based on observing an age-associated decline in B and T cell functioning, accompanied by a decrease in resistance and increase in autoimmune diseases with aging
Autoimmune reactions (immunologic theory)
What are the primary organ of the immune system?
thymus and bone marrow
propose that aging occurs because of functional decline in neurons and associated hormones, it also suggests that aging is the result of changes in the brain and endocrine glands
neuroendocrine and neurochemical theories
repeated exposure to ultraviolet light is known to cause __________, the "old age" type of skin wrinkling that results from the replacement of collagen by elastin
solar elastosis
Describe the aging individual in terms of his or her social group/culture
Sociologic Theories of Aging
The basis of this theory arises from the fact that human beings are mortal and must eventually leave their place and role in society, therefore it is their responsibility to look for suitable replacement
Disengagement Theory
assert that an older person should continue a middle-aged lifestyle, denying the existence of old age as long as possible, and that society should apply the same norms to old age as it does to middle age and not advocate diminishing activity, interest as its members grow old
Activity Theory
Accounts for the continuous flow of phases in the life cycle and does not limit itself to change
Continuity Theory
It assumes that persons will remain the same unless there are factors that stimulate change or necessitate adaptation
Continuity Theory
The continuity theory of aging is also referred to as the _______________, relates personality and predisposition toward certain action in old age to similar factors during other phases of life cycle
developmental theory
This theory suggests that society is stratified by age groups, persons within a similar age groups generally have similar experiences, beliefs, attitudes, and life transitions that offer them unique shared history
Age stratification theory
Views older adults as a group with distinct norms beliefs, expectations, habits and issues that separate them from the rest of society. Their formation of a __________ is a response to the negative attitudes and treatment by society
Subculture Theory, subculture
Explore the mental processes, behavior and feelings of persons throughout life span, along with some mechanisms people use to meet the challenges they face in old age.
Psychological Theories of Aging
are the challenges that must be met and adjustments that must be made in response to life experiences that are part of an adult's continued growth through the life span
Developmental tasks
detailed three specific challenges facing the older adults that influence the outcome of ego integrity
Robert Peck
To develop satisfaction from oneself as a person rather than through parental or occupational roles.
Ego differentiation vs. role preoccupation
to find psychological pleasures rather than become absorbed with health problems or physical limitations imposed by aging
Body transcendence vs. body preoccupation
to achieve satisfaction through reflection on one's past life and accomplishments rather than be preoccupied with finite number of years left to live
Ego transcendence vs preoccupation
Robert Butler and Myrna Lewis outlined additional developmental tasks of later life: ____________, ____________,___________
Adjusting to one's infirmities Developing a sense of satisfaction with a life that has been lived Preparing for death
It suggests that aging entails a transition from a rational, materialistic meta-perspective to a cosmic and transcendence vision
Gerotranscendence
What are the three Nursing theories of Aging
Functional consequences theory Theory of Thriving Theory of Successful Aging
integrates theories from aging and holistic nursing , it advocates that nurses can promote wellness by addressing individuals holistically, recognizing the interconnection of body, mind, and spirit
Functional Consequences Theory
This theory proposes that everything that impacts people throughout their lives must be linked to create holistic view of aging
Theory of thriving
saw the individual as biopsychosocial being that continuously interacts with and adapts to the changing internal and external environment
Adaptation Model by Sister Callista Roy
Sister Callista Roy assumes that the person has four modes of adaptation: _____________,_______________,____________,__________
Physiologic needs, self-concept, role function, and interdependence
Biological Aging has been described by stochastic and non-stochastic theories. ____________ view aging as a result of random assaults from the internal and external environment. whereas, ______________ view aging as being a complex, predetermined process.
Stochastic theories, Nonstochastic theories
hypothesizes that people are living longer due to emphasis on natural selection through reproduction.
Evolutionary theory
attributes longer life to the prevention and control of pathogens
biogerontology theory of aging
views aging as a process in which the individual gradually withdraws or disengage from society
disengagement theory
proposes that to age in a healthy manner, individuals need to stay active and engaged in society
activity theory
suggests that individuals will maintain the patterns of engagement in old age that they practiced throughout their life span
continuity theory
suggests that similarities among various age groups cause them to have unique experiences and interactions with society
age stratification theory
described developmental tasks people face during each stage of life, with the task in old age as ego integrity vs. despair.
Erikson
_______developed this further by offering specific challenge that older adults face as they strive for ego integrity which are as follows: ego differentiation vs. role preoccupation, body transcendence vs. body preoccupation, ego transcendence vs. ego preoccupation
Peck
also offered specific developmental tasks of late life which are as follows: adjusting to one's infirmities, developing a sense of satisfaction with life that has been lived, and preparing for death
Robert Butler and Myrna Lewis
assumes that with age there is transition from material to nonmaterial concerns
Gerotranscendence
Advocates that nurses can promote wellness by addressing individuals holistically, recognizing the interconnections of body, mind, and spirit
Functional Consequences Theory
Proposes that everything that impacts people throughout their lives must be linked to create a holistic view of aging
Theory of Thriving