Variation in chemical composition of the nervous system as determined by developmental and genetic factors

1967 ◽  
Vol 5 (2) ◽  
pp. 400
Author(s):  
J.N. Cumings
Cephalalgia ◽  
2002 ◽  
Vol 22 (8) ◽  
pp. 624-632 ◽  
Author(s):  
E Loder

Susceptibility to migraine is determined by genetic factors and is therefore subject to the forces of natural selection. Migraine is a common and ancient disorder whose prevalence may be increasing, suggesting that a migraine-prone nervous system may be associated with reproductive or survival advantages. Five evolutionary explanations are reviewed that might account for the persistence of migraine: (i) migraine as a defence mechanism; (ii) migraine as a result of conflict with other organisms; (iii) migraine as result of novel environmental factors; (iv) migraine as a trade-off between genetic harms and benefits; and (v) migraine as a design constraint. An evolutionary perspective on migraine allows the generation of important hypotheses about the disorder and suggests rewarding possibilities for further research.


Author(s):  
Ronald L. Wilder ◽  
Marie M. Griffiths ◽  
Grant W. Cannon ◽  
Rachel Caspi ◽  
Percio S. Gulko ◽  
...  

2002 ◽  
Vol 60 (3A) ◽  
pp. 624-627 ◽  
Author(s):  
Margô Gomes de Oliveira Karnikowski ◽  
Bruno Rodrigues Veloso Costa ◽  
Oscar Francisco Sanchez Osella ◽  
Otávio de Tolêdo Nóbrega

We present an investigation of a case of polymyositis affecting two sisters of one same parenthood. Their cases have been documented for almost two decades, being investigated by means of a diagnostic protocol which combined clinical findings as well as laboratorial, histopathological and image tests. In both cases, clinical manifestations started in childhood, without signs of involvement of the central and peripheral nervous system. Both patients proved to respond to a therapeutics based on corticosteroids. The degree of relatedness between their parents corroborate the notion that genetic factors may contribute to the development of the disease.


2018 ◽  
Vol 6 (4) ◽  
pp. 174-181
Author(s):  
Małgorzata Popis

AbstractParkinson's disease is the second most common neurodegenerative disease, affecting about 0,15-0,3% of the world's population. Its characteristic feature is a loss of dopaminergic neurons in the substantia nigra. PD leads to dopamine deficiency and formation of intracellular inclusions called Lewy bodies, whose main ingredient is α-synuclein. Other types of nervous system cells are also affected by changes associated with that disease. The underlying molecular pathogenesis involves multiple pathways and mechanisms: mitochondrial function, oxidative stress, genetic factors, α-synuclein proteostasis, mitochondrial dynamic impairment, and disorders of the mitophagy process. This review summarizes the factors affecting the functioning of the mitochondria and their connection to the development of Parkinson's disease.


1969 ◽  
Vol 1 (1) ◽  
pp. 71-83 ◽  
Author(s):  
C. O. Carter

SummaryAnencephaly and spina bifida cystica, malformations of the central nervous system, are due to failure of closure of the neural tube. These malformations are a major cause of stillbirth, infant death and (in the case of spina bifida) of childhood morbidity in Britain today.Their aetiology is not known in detail. There are, however, indications from family studies and from the striking racial variation in their incidence (which is in part at least maintained after migration) that genetic factors are important in their causation. There is also evidence from maternal age and birth order effects, secular and seasonal variation, and social class effects that environmental factors also are important in their aetiology.


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