La degeneración espinocerebral puede tener origen genético y aunque la ciencia ha avanzado mucho en los últimos años esta enfermedad. DEGENERACIÓN ESPINOCEREBRAL La degeneración espinocerebelosa o degeneración espino cerebral es una enfermedad en la cual las. Review Article. Enfermedades neurodegenerativas: La ataxia espinocerebelosa tipo 7 en México. Rolando Garcia-Martinez1*, Elizabeth Hernandez2, Rebeca.

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eNeurobiología – Revista electrónica

A mutation in CGG triplet on the X chromosome. Therefore, it is essential to gain awareness of the existence of such diseases, though their incidence in our country is low, so that the family physicians in charge of primary care have the knowledge to detect these diseases and properly refer patients to an appropriate institution for follow up.

This group includes sporadic or acquired ataxias, which may be caused by chronic alcoholism, toxins and drugs phenytoin, lithium, valproate, amiodarone, metronidazole, procainamide, mefloquine, isoniazida, metals and solventshypothyroidism, stroke, infectious diseases, and neoplastic disorders. The mutation affect voltage-gated potassium channels function KCNA1. On the other hand, Dias et al. Specifically, the number of repeats present is inversely proportional to the age of onset of symptoms and to the intensity of clinical involvement.

A mutation located on chromosome 11pq This would lead to a more accurate estimation of the frequency of the disease, improve the availability of appropriate management and provide better quality of life for people affected by this devastating condition. The characteristic symptom of these mitochondrial disorders is ataxic gait, and is often associated with other complications such as peripheral neuropathy, ophthalmoparesis, retinitis pigmentosa, etc.

However, the mechanism by which these effects are mediated is unknown. Another group received TMS pulses only every two weeks. Focal olivocerebellar lesions impair adaptation.

autosomal dominant cerebellar ataxia – Wikidata

In this context, the objectives of this review are: Clinical trials published in Portuguese, English and Spanish from on were included. Each search was performed with at least two combined descriptors so that one of them would be related to the pathology ex.: This lack of knowledge ocurrs because most of the SCA are manifested in adulthood after 40 years of ageafter most people have already reproduced.


Defect in the MeCP2 gene on the X chromosome. This alteration has been associated with the clinical and pathological manifestations of this disease.

How to cite this article. The autosomal recessive ataxias Table 2 are caused by the loss of a mitochondrial protein, frataxin, which has been linked to respiratory function and iron homeostasis. In the conducted search, studies were found. In order to assess both groups, some tools were used: InRasmussen et al.

Therefore, it seems that keeping patients active alone can already being some sort of benefit. After practice, the immediate group presented improvements in all of the evaluations, except for espinoecrebelosa, when compared to the control group.

In another group of dominant disorders, including episodic ataxias espinocerwbelosa to 7 EA 8 and SCA6 Table 1the mutations affect genes that encode ion channels. Clinical and genetic studies showed that the disease was spinocerebellar ataxia type 7, and this was the first publication of SCA7 in a Mexican family.

The spinocerebellar ataxias are genetic diseases that can pass from one generation to another, without a family knowing that one or both of the parents carry the disease gene.

More recently, Schaefer et al. This retention was not correlated with the staging of ataxia.

However, these characteristics can vary even among members of the same family. The current classification based on genetic changes comprehends 31 types of SCA 4.

Pedigree of three Mexican subfamilies A, B, C. The progressive character of SCA, added to this vicious circle, leads to the accumulation of motor loss, thus producing an inexorable scenario of immobility and wheelchair dependency around the 15 th year of disease evolution 9. Ataxia described in the ancestors of U.



The authors concluded that the treatment was efficient in the long term. Still, it is hard to distinguish if the lack of benefit retention after an exercise program is owed to the progressive degeneration, characteristic of the disease, to the inability to retain the learned movement patterns or to the need to elect more appropriate exercises for these patients.

Similarly, the three women with genetic confirmation of SCA7 had no children, which contributed to the low incidence of cases in these subfamilies. The existence of this disease in Mexico was first reported by Matsuura et al.

Unlike dominantly inherited diseases, diseases with autosomal recessive inheritance require two copies of the defective gene for a person suffer the symptoms of the disease Figure 2. It was formerly known as olivopontocerebellar atrophy type III 13 and is now known as spinocerebellar ataxia type 7.

The spinocerebellar ataxia type 7 in Mexico. Many diseases have been described to result from the formation of polyglutamine repeats. The inherited ataxias are classified according to the specific genetic deficit, including autosomal dominant, autosomal recessive, mitochondrial diseases and X-linked ataxias. The improvement in GAS was also maintained. When this transcript is translated into protein, there are repetitions of the corresponding amino acid, and the mutated protein tends to aggregate within nuclear inclusions.

Schematic illustrating autosomal recessive inheritance. Such details are important to ensure replicability in new studies, including multicenter clinical trials, and to enable the reproduction of the protocol in clinical practice.

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