Tay Sachs Disease In Children

Genetic testing is used to determine the risk of a patient or patient’s offspring developing genetic diseases. This is done with DNA sequencing in adults and preimplantation genetic diagnosis (PDG) on embryos. These methods of genetic testing are effective means of determining the likelihood of developing diseases such as Huntington’s disease, a disease resulting from trinucleotide repeat on chromosome 4p16.3 that causes uncontrollable muscle movement and decrease in cognitive function. However, they only determine probability, which isn’t an entirely reliable means of knowing whether or not symptoms will arise.

There are many diseases in the world that can have severe negative impacts on a person and their family. Many neurodegenerative diseases are caused by genetic mutations. This essay will be discussing the similarities and differences between the diseases of Tay-Sachs, Alzheimer’s, Parkinson’s and Fragile X as well as their symptoms, treatments and intervention strategy’s.

Tay Sachs is an incurable genetic disease that affects the central nervous system. It is a rare disorder that occurs chiefly in infants and children, especially those of the Jewish heritage. It is characterized by a red spot in the retina, paralysis, gradual blindness, and loss of muscle movement.

Signs and symptoms of the disease do not begin to surface until the child is around six months of age and it begins with gradual dysfunction of the motor skills. As the nervous system further degrades the symptoms become worse and the child loses sight, hearing, and mental functionality. Unfortunately there is no treatment for Tay-Sach’s except comfort measures and the life expectancy for a child with infantile Tay-Sach’s disease is typically four to five years (Ainsworth, 2011). The physician would need to emphasize that maternal age or lifestyle does not have any part in the cause of this diagnosis. The physician would then need to explain the options available at this time which are carrying the child to term or terminating the pregnancy via therapeutic abortion (Tay-sachs.org). Depending on the parent’s decision, should they choose to carry the child, they can also choose to care for the infant or place it for adoption. After the physician has spoken with the family, the RN would need to be there for the family, not only to listen, but again to answer any questions they may have.

Since children lack the HEXA-A gene it causes progressive damage and eventually the nervous system will shut down because it can no longer produce vital neurons needed to function the nervous system and life. Beta-hexosamindinidase is located in the lysosomes, which are structures in cells that act as recycling centers and breaking down the toxic substance. Beta-hexosamidnidase role is toxic and fatty substances called GM2 ganglioside. If the gangliosides become overpowering or too much, can cause destruction of the neurons. The excessive storage of the gangliosides in lysosomes is another factor that causes Tay-Sachs. Tay-Sachs occurs usually when the individual lacks the protein hexosamindinidase A and defected and alterations on chromosome 15 (specifically 15q23-q24). More than 50 mutations having been discovered on chromosome 15 and HEXA-A enzyme. The mutation can vary as in deletion, insertion, and splitting in which each mutation alters the protein. The mutation and disorder cause a decrease in enzymes activity. The severity of the disorder depends on the degree of the enzyme activity and deficiency. For example, one mutation includes, the mutation includes a G-to-T substitution at the 3-inch end of intron 5, which makes a short mRNA. Then skipping exon 6 and the polypeptide lacking 34 amino acids. (Tanaka

Tay Sachs Disease is an inherited disease that results in slow destruction of the central nervous system and sensory systems, which is caused by a mutation resulting in a deficiency of a lysosomal enzyme. The missing enzyme, hexosaminidase A, functions in breaking down the fatty material ganglioside GM2, a chemical found in nerve tissue. Without this enzyme, lipids accumulate in the brain cells and destroy them, resulting in damaged nerve cells, neurological problems, and eventually leading to death several years after birth. The disease was first discovered by Waren Tay, a British ophthalmologist in 1881. Tay-Sachs disease is very rare in the general population and is relatively common among certain ethnic groups such as Eastern Europeans

The history behind Tay Sachs disease is in 1881 Warren Tay who is a ophthalmologist had this child with mental and physical retardation in the child’s

Tay Sachs is a genetic disorder that occurs when there is a missing enzyme in the body. This causes a buildup of fatty substances in the nervous system (Gale). Beta-Hemosaminidase, or HexA, is the missing enzyme that causes the various nerve disorders that happen within Tay Sachs (NTSAD). This disease is inherited in a few different areas of the world, but it is most commonly

Tay-Sachs disease is a rare genetic disorder. Nathan Harney was only 10 months old when he was diagnosed with this fatal disease. At an early age, he started to lose his skills and had consistent seizures. He couldn’t walk, sit, or stand on his own. During a careful eye examination, Nathan’s doctor found a cherry red spot in his eye which led him to the conclusion that he suffered from Tay-Sachs. Later, after he had genetic testing, Nathan was officially diagnosed with the genetic disorder Tay-Sachs. Sadly, Nathan passed away on June 18, 2015 at the age of four (Aaron and Kathryn Harney, 2011).

"Children with Tac-Sachs disease often die by 4 despite the provision of best available care. Their seizures worsen, and eventually fall into an unresponsive vegetative state.

As a result of the funding for such testing, many believe the breakthrough for curing diseases is around the corner. The decision is whether or not America wants to take a step forward and progress their knowledge in medicine. Nobody agreed it would be easy, but as any other advancement in medicine, one must concur the future is near. Ultimately getting a specific drug tailored to your genetic sequence might be helpful to possibly eradicate and possibly cure deadly diseases and disorders. Within the past few years, many breakthroughs in medical advancements came through as some neurosurgeons complete brain surgeries while the patient is awake. Such testing poses crucial features to preventing things from going wrong. Similarly, being provided with the needed tools, one can hope the next step is toward cures for age-old monstrosities. Although not being enforced, many doctors are willing to refer their patients to get their genes tested. Next time a visit to the doctor’s office is scheduled, feel free to ask about a glimpse into what your future

“The carrier rate for Tay-Sachs in the general population is 1/600” (OMIM). Sandhoff Disease is a rare genetic disorder, and it is a severe form of Tay-Sachs that progressively destroys cells in the brain and spinal cord. Since its discovery and analysis of inheritance, there have been advancements of its diagnosis, treatment, research, and its support resources for affected families. Those affected individuals lose motor skills and function of other body parts. As the disease progresses they experience seizures, vision/hearing loss, mental disability, paralysis, and a cherry red spot on the eye. This leads to loss of coordination, alertness, and respitory health. The disease has three forms infantile, juvenile, and late-onset. In infants

Tay-Sachs disease got its name from Warren Tay and Bernard Sachs. Warren Tay was a British ophthalmologist who first discovered a cherry-red spot on the retina of the eye. Bernard Sachs was a neurologist from New York who later discovered and described the cellular changes of the disease. Not only did Sachs become the first person to recognize the cellular changes, but he was also able to see that the disease was most common amongst families .

The infant presented was to be examined in depth. Concern arose after a typical birth and resent changes that had taken place; exaggerated startle response, twitching and mild muscle tone loss (myoclonic jerks). Straight forward exam of: eyes, ears, nose, throat and so on. With inspection of the eyes it was noted that a spot of cherry red was detected in the eye. Cause of the red spot appearance; is from the macula cells breaking down they then expose the choroid which supplies blood to the retina. Resulting in the red spot appearance when cells have become damaged, with this detection a more in-depth family health history and genic screening would need to occur. Though Tay-sachs (TSD) is suspected it is necessary to verify the suspicion. There

It can also be used to test for Tay-Sachs Disease, Fragile-X Mental Retardation, Cystic Fibrosis, Down Syndrome and Spinal Muscular Atrophy. In the past couples who wanted to have childr en, and were carriers of inherited diseases, worried about the possibility of their children inheriting the disease. Parents will no longer have this worry. In 1989, an English couple became the first to use PGD [Grady,1995]. It was used because they were at risk of passing along a form of severe mental retardation. Because it only affected sons, PGD was used to ensure that the couple had a daughter.