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What Is Ataxia Telangiectasia?
Ataxia telangiectasia or A-T is defined as a rare, inherited, neurodegenerative disease that can affect different body parts resulting in severe disability. The word 'ataxia' means poor coordination while 'telangiectasia' is the medical term used for small and dilated blood vessels; these two conditions are the primary features of A-T. The other traits marking ataxia telangiectasia are tendency of developing lymphoma and hypersensitivity towards X-rays.
Ataxia telangiectasia affects our cerebellum, which is the body part responsible for maintaining our motor coordination. Around 70% of the patients suffering from A-T experience weakening of their immune system due to the disease, which increases their risk of developing cancer and makes them suffer from respiratory disorders. Usually ataxia telangiectasia first occurs when the patient is in his early childhood i.e. when he is still a toddler. The initial signs of the condition are: increased infections, slurred speech and lack of proper balance. As most children of this age do not have perfect walking skills or ability of speaking properly, diagnosis of A-T requires some years. The signs of ataxia telangiectasia in a grown up individual include:
- Cerebellar ataxia, a condition that's make controlling movement difficult
- Ocular apraxia, a condition that makes following any object across the visual field difficult
- Immunodeficiency, decreased concentration of immunoglobulin
- Telangiectasias of skin and eyes
- Chromosomal instability
- Increased levels of alpha-fetoprotein
- Ovarian dysgenesis
- Hypersensitivity towards ionizing radiation
- Absence of thymic shadows on X-rays
An individual develops ataxia telangiectasia due to defect in his or her ATM gene. The ATM gene is responsible for performing important functions like correcting the errors of DNA duplication during cell division and destroying cells when errors cannot be corrected.
The diagnosis of ataxia telangiectasia involves both physical exam conducted by the doctor and certain laboratory tests. When a patient experiencing one or more of the above symptoms visit a physician, the physician will perform physical exam to locate signs like:
- Tonsils, spleen and lymph nodes that are much smaller than their normal size
- Absence or decreased size of deep tendon reflex
- Absence or delay in physical development
- Changes in skin texture and skin color
The common laboratory tests recommended for detecting ataxia telangiectasia include:
- Screening for T and B cell
- Blood test for knowing the levels of alpha fetoprotein
- Blood test for knowing presence of carcinoembryonic antigen
- Glucose tolerance tests
- Genetic tests to check for ATM gene mutations
- Tests for knowing levels of serum immunoglobulin (IgA and IgE)
Ataxia Telangiectasia: Overview of the Condition and Life Expectancy
Ataxia Telangiectasia can be defined as a genetic condition affecting human body system like its  immune system and nervous system. The condition is marked by difficulty in coordinating movement starting from the early childhood and then progressing with age; this complication of the disorder is referred to as ataxia. The affected children generally find it difficult to walk, develop problems with their balance and have slurred speech and abnormal eye movement. Telangiectasia means petite clusters formed of enlarged blood vessels. Kids with Ataxia Telangiectasia develop such clusters on their skin surface and eyes.
Ataxia Telangiectasia patients have weak immune systems, which makes conditions like chronic lung infection common among them. They also have increased risk of suffering from [...]
Ataxia Telangiectasia Treatment
Ataxia Telangiectasia is an atypical infancy neurologic condition causing a section of the brain controlling motor motions & dialogue to degenerate. It’s highly uncommon symptom is a sharp sensitiveness to ionizing radiation like gamma ray, X-ray.
The foremost indications of this condition that comprise of postponed motor skill developments, pitiable balance & slurry verbal communication generally arises in the initial ten years of life.
Telangiectasias or small, reddish spider veins that surface in the crooks of the eye or on the surfaces of ear, cheek areas are typical of the disorder, however are not existent at all times, & usually not appearing in the initial years of life. Around twenty percent of patients having Ataxia Telangiectasia would be developing cancer, with [...]
What is Ataxia-Telangiectasia?
Brief and pertinent information about what is Ataxia Telangiectasia.
What is Ataxia-Telangiectasia
Ataxia-Telangiectasia (A-T) is a heritable disorder typified by advancing neurological issues which cause walking-related problems. Indications of ataxia-telangiectasia mostly are observed to arise during early years. Kids with ataxia-telangiectasia might start wobbling & seem rickety (ataxia) briefly after having learnt walking. Majority of the individuals having ataxia-telangiectasia would sooner or later require using wheel-chairs. Individuals having ataxia-telangiectasia posses normal I.Q., however with passage of time, he/she would start experiencing slurriness in verbal communication & face difficulties when trying to write & do other chores. Reddish spots known as telangiectasias [...]
Ataxia-Telangiectasia – Differential Diagnostic Procedures
Ataxia-telangiectasia is a rare autosomally recessive, multifarious, multisystem infancy disorder.
Diagnosis & Tests
A-T is doubted in case an infant starts developing ataxia signs. Testing methods for identifying the ATM gene are obtainable, however solely ninety percent of the mutations could be spotted. The below mentioned tests could be further useful in ascertaining the presence of A-T or any other form of ataxia:
Immunoblotting or ATM protein testing
This is the finest testing method for diagnosing A-T. Almost the entire populace of individuals having A-T would have dearth of or no protein presence that the ATM gene would make.
Radiosensitivity assay
As individuals having A-T are increasingly sensitive to radiation hence removal of cell sample and exposing it to radiation [...]
