down syndrome symptoms
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Down syndrome People with Down syndrome may have some or all of these physical characteristics: a small chin, slanted eyes, poor muscle tone, a flat nasal bridge, a single crease of the palm, and a protruding tongue due to a small mouth and relatively large tongue.
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Ageing And Its Consequences For People With Down's Syndrome The appearance of these brain changes in people with Down's syndrome is only of great significance if they lead to loss of ability and the appearance of the clinical changes characteristic of dementia (i.e., the development of Alzheimer's disease).
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Down Syndrome: Information and Birth Likelihood Down syndrome (DS or DNS) or Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.
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Causes of down syndrome? The cause of Down syndrome is one of three types of abnormal cell division involving chromosome 21. All three abnormalities result in extra genetic material from chromosome 21, which is responsible for the characteristic features and developmental problems of Down syndrome.
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Down syndrome People with Down syndrome often experience a gradual decline in thinking ability (cognition) as they age, usually starting around age 50. Down syndrome is also associated with an increased risk of developing Alzheimer disease, a brain disorder that results in a gradual loss of memory, judgment, and ability to function. Approximately half of adults with Down syndrome develop Alzheimer disease.
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- Dr. Ledoux: As any family member of a person with Down syndrome knows, there are characteristic features about the eyes. This includes upward slanting of the eyelids, prominent folds of skin between the eye and the nose, and small white spots present on the iris (the colored part of the eye) called Brushfield’s spots. These spots are harmless, and can be seen in people without Down syndrome as well.
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- Down syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.
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What are common symptoms of Down syndrome? The symptoms of Down syndrome vary from person to person, and people with Down syndrome may have different problems at different times of their lives. Physical Symptoms. In addition, physical development in children with Down syndrome is often slower than development of children without Down syndrome.
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Down syndrome In most cases, Down syndrome occurs when there is an extra copy of chromosome 21. This form of Down syndrome is called Trisomy 21. The extra chromosome causes problems with the way the body and brain develop.
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Down Syndrome Down syndrome is a genetic disorder that includes a combination of birth defects. Persons with Down syndrome have some degree of mental retardation and characteristic facial features. Often, heart defects and other problems are present. It is one of the most common genetic birth defects, affecting approximately 1 in 800 babies. Chromosomes are the structures in cells that contain the genes. Down syndrome is caused by extra genetic material from chromosome 21. Affected persons have two normal copies of number 21 chromosomes, plus extra chromosome number 21 material attached to another chromosome.
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Description Down Syndrome: Musculoskeletal Effects. Down syndrome is one of the most common genetic disorders. According to the Centers for Disease Control and Prevention, it affects about 1 baby in every 691 births. Children with Down syndrome have varying developmental delays and medical problems. They may have special medical problems of the heart, stomach, eyes, and other parts of the body. Many children have problems that involve the bones and joints.
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What are common symptoms of Down syndrome? Physical Symptoms. Common physical signs of Down syndrome include 1  : Decreased or poor muscle tone. 2  Short neck, with excess skin at the back of the neck. 3  Flattened facial profile and nose. 4  Small head, ears, and mouth. 5  Upward slanting eyes, often with a skin fold that comes out from the upper eyelid and covers the inner corner of the eye.
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Overview Symptoms. The severity of fetal alcohol syndrome symptoms varies, with some children experiencing them to a far greater degree than others. Signs and symptoms of fetal alcohol syndrome may include any mix of physical defects, intellectual or cognitive disabilities, and problems functioning and coping with daily life.
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Jensen Ackles Jensen Ackles. Jensen Ross Ackles (born March 1, 1978) is an American actor and director. He is known for his roles in television as Eric Brady in Days of Our Lives, which earned him several Daytime Emmy Award nominations, as well as Alec/X5-494 in Dark Angel and Jason Teague in Smallville.
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What causes Down syndrome? Research shows that three types of chromosomal changes can lead to Down syndrome. 1  Complete trisomy 21. 2  In this case, an error during the formation of the egg or the sperm results in either one having an extra chromosome. 3  So after the egg and sperm unite, the resulting cells will also have three copies of chromosome 21.
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- Associated with Down syndrome is an increased risk of hearing and vision defects, heart abnormalities (about 50% are born with congenital heart defects, for which the majority can be surgically corrected), infection, leukaemia, thyroid disorders, and of developing Alzheimer-type dementia in later life.
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- About Down Syndrome. Down syndrome is a set of cognitive and physical symptoms that result from having an extra chromosome 21 or an extra piece of that chromosome. It is the most common chromosomal cause of mild to moderate intellectual disabilities.
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Trisomy 18 and 13 Down's syndrome. Introduction. Down's syndrome, also known as Down syndrome, is a genetic condition that typically causes some level of learning disability and characteristic physical features. Around 775 babies are born with the condition each year in England and Wales.
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What causes Down syndrome? Research shows that three types of chromosomal changes can lead to Down syndrome. 1  Complete trisomy 21. In this case, an error during the formation of the egg or the sperm results in either one having an extra chromosome. 2  Mosaic trisomy 21. Not every cell in the body is exactly the same. 3  Translocation trisomy 21.
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- Down syndrome (DS or DNS) or Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.It is typically associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.own syndrome is one of the most common chromosome abnormalities in humans, occurring in about one per 1000 babies born each year. In 2013 it resulted in 36,000 deaths down from 43,000 deaths in 1990. It is named after John Langdon Down, the British doctor who fully described the syndrome in 1866.
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Down Syndrome The baby with Down syndrome has a hallmark appearance. However, every aspect of the appearance does not need to be present as the phenotype, the way the genes make the child look, can be markedly different for each patient. Commonly, there is a small head and short neck, a flat face, and upward slanting eyes.
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Down's Syndrome People with Down's syndrome often have certain physical characteristics. Not everyone will have all of them, but they may include: 1  reduced muscle tone which results in floppiness (hypotonia). 2  a small nose and flat nasal bridge. 3  a small mouth with a protruding tongue. 4  eyes that slant upwards and outwards. 5  a flat back of the head. 6  a big space ....
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- Down syndrome is a genetic condition in which there is an extra chromosome present. Symptoms may range from mild to severe. Children with Down syndrome share a common physical appearance including a flattened nose, small ears, a small mouth, upward slanting eyes, and a single crease in the palm of the hand.
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- Down syndrome (sometimes spelled “Down’s syndrome”) is a genetic abnormality. It is the most common single cause of birth defects in the United States (NIH, 2012). This syndrome occurs because of an extra copy of chromosome 21. Your chromosomes contain your genetic material, and any problems with your chromosomes can cause serious physical and mental health problems.