Colaboring: Within Collaboration Degenerative Processes

Author(s):  
Cristina D. Vintimilla ◽  
Iris Berger
1926 ◽  
Vol 43 (4) ◽  
pp. 495-499 ◽  
Author(s):  
David Marine

Calcification of the fascicular zone of the cortex has been observer in 64 of 257 cats. It is always calcification and never ossification It is more common in young animals and in our experience is associated with distemper. In its severe forms it may be recognized clinically. The symptoms resemble those seen in cats surviving double suprarenalectomy for 2 to 3 weeks. The toxin producing the focal degeneration is dearly a very specific one since attempts to produce such lesions by several types of experimental injury have failed. The sequence of events appears to be similar to that present in other degenerative processes associated with calcification, namely cell injury and necrosis, deposition of calcium at first as fatty compounds which later change to carbonate and phosphate. It is suggested that this lesion should be considered in interpreting experiments in which cats are used.


2016 ◽  
Vol 74 (9) ◽  
pp. 761-766 ◽  
Author(s):  
Tiago Attoni ◽  
Rogério Beato ◽  
Serge Pinto ◽  
Francisco Cardoso

ABSTRACT Chorea is an abnormal movement characterized by a continuous flow of random muscle contractions. This phenomenon has several causes, such as infectious and degenerative processes. Chorea results from basal ganglia dysfunction. As the control of the eye movements is related to the basal ganglia, it is expected, therefore, that is altered in diseases related to chorea. Sydenham’s chorea, Huntington’s disease and neuroacanthocytosis are described in this review as basal ganglia illnesses that can present with abnormal eye movements. Ocular changes resulting from dysfunction of the basal ganglia are apparent in saccade tasks, slow pursuit, setting a target and anti-saccade tasks. The purpose of this article is to review the main characteristics of eye motion in these three forms of chorea.


1992 ◽  
Vol 7 (3) ◽  
pp. 109-113 ◽  
Author(s):  
MJ Filteau ◽  
E Pourcher ◽  
RH Bouchard ◽  
P Baruch ◽  
J Mathieu ◽  
...  

Brain alterations have been sought since the beginning of the century to explain the ‘dementia’ of dementia præcox. Kraepelin suggested in 1913 that it might have its internal origins in early childhood, while Southard (1915) considered likely a congenital or early acquired basis for the development of the disease. Afterwards, degenerative processes were described for decades until neurodevelopmental theories emerged recently (Lewis, 1988).Using pneumoencephalography, Jacobi and Winkler (1927) first reported that some patients with schizophrenia presented enlarged ventricles. Johnstone et al (1976, 1978), in CT-scan studies, observed an increase in mean lateral ventricular size in a group of institutionalized schizophrenic patients. This finding has been replicated by other studies (Weinberger et al, 1983) but challenged by others (Gluck et al, 1980; Jernigan et al, 1982).


Planta Medica ◽  
2019 ◽  
Vol 85 (17) ◽  
pp. 1292-1303 ◽  
Author(s):  
Isabel Martínez-Solís ◽  
Nuria Acero ◽  
Francisco Bosch-Morell ◽  
Encarna Castillo ◽  
María Eugenia González-Rosende ◽  
...  

AbstractLike other tissues of the central nervous system, the retina is susceptible to damage by oxidative processes that result in several neurodegenerative disease such as age-related macular degeneration, diabetic retinopathy, glaucoma, ischaemic retinal disease, retinal disease produced by light oxidation, and detached retina, among other diseases. The use of antioxidant substances is a solution to some health problems caused by oxidative stress, because they regulate redox homeostasis and reduce oxidative stress. This is important for neurodegeneration linked to oxidation processes. In line with this, Ginkgo biloba is a medicinal plant with excellent antioxidant properties whose effects have been demonstrated in several degenerative processes, including retinal diseases associated with neurodegeneration. This review describes the current literature on the role of ginkgo in retinal diseases associated with neurodegeneration. The information leads to the conclusion that G. biloba extracts might be a good option to improve certain neurodegenerative retinal diseases, but more research is needed to determine the safety and efficacy of G. biloba in these retinal degenerative processes.


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