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Causes and effects of down syndrome
Causes and effects of down syndrome
Abstract paper on effects of down syndrome
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Javrious Crape
Mrs. Patterson
Biology 1 – B Period
November 22, 2016
Down syndrome
There’s a nucleus in every cell in the human body, where genetics is stored in gene. Codes are carried by the genes that are responsible for inherited traits are together as rod-like structures called chromosomes. Each nucleus contains 23 pairs of chromosomes. Both DNA from the parents are shared. Down syndrome is a genetic chromosome 21 disorder causing developmental intellectual delays. Down syndrome affects the organ system or body functions. They have a risk of heart defects, respiratory and hearing problems, Alzheimer’s disease, childhood leukemia, epilepsy, and thyroid conditions. Most of Down syndrome is not inherited. When it is caused by trisomy
On a normal person, you have 23 pairs of chromosomes. In each pair, 1 gene comes from the mother, and 1 gene comes from the father. This is how things get passed down from parents to children (like eye color, height, skin tone etc...).
Down’s syndrome is a chromosomal condition that is caused by an extra 21st chromosome as there is an error in the body’s cell division. Every human has a nucleus in every cell in the body which contains genes that are grouped along with chromosomes. The normal number of
performance that involves, but is not limited to, a loss in at least 2 of the
Alzheimer’s disease, named after Dr. Alois Alzheimer, is a disease that is on the rise in America and the rest of the world. People should learn as much as they want about this disease, because as you age, your chances of becoming an Alzheimer’s Disease, or AD, patient increases. It is estimated that approximately 3 percent of Americans between the ages of 65 and 74 have the illness, and more than half of all people over age 85 have the ailment.
Alzheimer’s disease is a complex illness that affects the brain tissue directly and undergoes gradual memory and behavioral changes which makes it difficult to diagnose. It is known to be the most common form of dementia and is irreversible. Over four million older Americans have Alzheimer’s, and that number is expected to triple in the next twenty years as more people live into their eighties and nineties. (Johnson, 1989). There is still no cure for Alzheimer’s but throughout the past few years a lot of progress has been made.
Down Syndrome results when one of the three types of abnormal cell divisions involving chromosome 21 occur. Roger W. Harms, a medical doctor, states, “Human cells normally contain twenty-three pairs of chromosomes. One pair comes from your father and one pair comes from your mother.” In each pair, one chromosome comes from the father, and one comes from the mother. One of the three genetic variations that can cause Down Syndrome is Trisomy 21. This version of Down Syndrome occurs more than 90% of the time. It re...
It is inevitable that eventually each of us will grow old and begin to face more and more health problems as our age rises. Elderly people are challenged by many illnesses and diseases that unfortunately, are incurable. One disease that becomes more common as people age is Alzheimer’s disease. Alzheimer’s a common cause and a form of dementia and can severely damage a patient’s cognitive functions and can ultimately cause death. Living with Alzheimer’s disease can be saddening for both the sufferer and the family. Family and friends will find it very hard to cope when a loved one begins slipping away and losing memory of who they are.
In 1866 British doctor John Langdon Down defined and described the characteristic symptoms of Down Syndrome but was unsure of the cause. It wasn't until 1959 that Dr. Lejeunne and his team in Paris showed that people with Down Syndrome have an additional chromosome. We normally have 23 pairs of chromosomes, each made up of genes. The cells of people with Down Syndrome include three chromosome #21 instead of two. The extra 21st chromosome causes an extra dose of proteins. These proteins cause the typical features of Down Syndrome. While the fetus with Down Syndrome is developing, its body cells do not reproduce as fast as usual. That is the main reason why these babies are smaller than average after birth and their brain not as big as those of other newborn children.
Down syndrome is a genetic disorder, associated with the presence of an extra chromosome. Downs is characterized by mild to severe mental impairment, weak muscle tone, shorter stature, and a flattened face. Down syndrome is not a very common disease, one in every 691 children are born with Down syndrome. The disability is an illness that people are born with and is not contagious. Most people with Downs have a life expectancy of about 40 or 50 years of age. They only live for that short amount of time because they begin to develop a similar disease to Alzheimer’s. “100% of people with Down syndrome will develop some physiologic signs of Alzheimer’s when they are over 35 years old in the U.S” (Statistics about Down Syndrome). They also die earlier because having Down syndrome increases the risk of leukemia 15-20 times in the US. Therefore most people with Downs will die because of leukemia or heart problems before the age of 50.
In this day and age, it seems as though almost everyone has experience a loved one taken away form a very serious disease known as Alzheimer’s disease. Alzheimer’s disease is unbelievably devastating for everyone affected by it. This disease is causing major economical problems such as less occupancy in the nursing homes, and hospitals due to the rising population of elderly men and women being diagnosed with it everyday. Because there is not yet a cure for this disease and the percent of the population being diagnosed keeps rapidly rising, more time and money needs to go towards Alzheimer’s research.
Alzheimer's Disease Introduction to Alzheimer's Alzheimer's disease is a progressive, degenerative disease of the brain. It was first described by the German neuropathologist Alois Alzheimer (1864-1915). in 1905. This disease worsens with advancing age, although there is no evidence. that it is caused by the aging process.
of the cells, instead of the norm of two. Generally, Down syndrome is not hereditary since it is
So, as we can see here synaptic loss is not just age related and we can see this relationship through the evidence of the parts of the brains affected as well as a study that looks at an actual comparison of synapses. The comparison is between people with no cognitive impairment, mild cognitive impairment, and early Alzheimer’s disease. Mild cognitive impairment is a type of impairment within the brain that can cause a slight but noticeable decline in cognitive abilities. These abilities include memory and thinking skills. These patients are at a higher risk of developing Alzheimer’s and that is why they were also looked at in this research (Scheff, Price, Schmitt & Mufson, 2005). One of the major research findings that led to this study was that patients with Alzheimer’s disease seemed to have a loss of synaptic contacts in their neocortex and hippocampus. This loss of synaptic contacts demonstrates an association with cognitive ability and correlates strongly with dementia. It was unknown whether patients with mild cognitive impairment had significant synaptic loss compared to those with no cognitive impairment.
Introduction This assignment critically discusses dementia, a widespread disability among older adults today. It provides an introduction to dementia and analyses its prevalence in society. The various forms of dementia are elaborated with descriptions of dysfunctions and symptoms. Nursing Assessment and Interventions are provided in the further sections which discuss actions nurses should take while evaluating patients and treating them.
Dementia is a major neurocognitive disorder that interferes with the independence of the elderly by inhibiting memory and thinking skills. Fifty to eighty percent of dementia cases constitute of Alzheimer’s diagnoses; consequently Alzheimer’s disease is the most common type of dementia and currently affects 5.2 million Americans. Most of these cases are patients above the age of 65 and by 2050; 13.8 million Americans in total will suffer Alzheimer’s due to aging of the general population, specifically the baby boomers. Total cost to society ranges from $157- $215 billion (Associated Press). Some would assume the cost of Alzheimer’s to be incurred by pharmaceuticals or medical costs, however RAND Corp suggests dementia cost to society is from care rather than treatment. Therefore, assistance provided by informal providers and directs caregivers incur a majority of the financial and social cost. Currently, the workforce does not have the capacity or training to care for these unique patients; the delivery system needs to address Alzheimer’s as the population ages and more and more fam...