scholarly journals A biophysical study on molecular physiology of the uncoupling proteins of the central nervous system

2015 ◽  
Vol 35 (4) ◽  
Author(s):  
Tuan Hoang ◽  
Miljan Kuljanin ◽  
Matthew D. Smith ◽  
Masoud Jelokhani-Niaraki

Uncoupling proteins (UCP)2, UCP4 and UCP5 transport protons across the inner membrane of mitochondria in the central nervous system (CNS). Novel recombinant protein expression allowed expression of UCPs in Escherichia coli membranes. Functional neuronal UCPs formed multimers in membranes and interacted with various fatty acids (FAs) to transport protons. Self-association and unique ion transport properties of UCPs distinguish their physiological roles in the CNS.

2017 ◽  
Vol 37 (8) ◽  
pp. 820-828 ◽  
Author(s):  
Guilherme Konradt ◽  
Daniele M. Bassuino ◽  
Klaus S. Prates ◽  
Matheus V. Bianchi ◽  
Gustavo G.M. Snel ◽  
...  

ABSTRACT: This study describes suppurative infectious diseases of the central nervous system (CNS) in domestic ruminants of southern Brazil. Reports from 3.274 cattle, 596 sheep and 391 goats were reviewed, of which 219 cattle, 21 sheep and 7 goats were diagnosed with central nervous system inflammatory diseases. Suppurative infectious diseases of the CNS corresponded to 54 cases (28 cattle, 19 sheep and 7 goats). The conditions observed consisted of listerial meningoencephalitis (8 sheep, 5 goats and 4 cattle), suppurative leptomeningitis and meningoencephalitis (14 cattle, 2 goats and 1 sheep), cerebral (6 cattle and 2 sheep), and spinal cord (7 sheep) abscesses, and basilar empyema (4 cattle and 1 sheep). Bacterial culture identified Listeria monocytogenes (9/54 cases), Escherichia coli (7/54 cases), Trueperella pyogenes (6/54 cases) and Proteus mirabilis (1/54 cases). All cases diagnosed as listeriosis through histopathology yielded positive immunostaining on immunohistochemistry, while 12/17 of the cases of suppurative leptomeningitis and meningoencephalitis presented positive immunostaining for Escherichia coli. Meningoencephalitis by L. monocytogenes was the main neurological disease in sheep and goats, followed by spinal cord abscesses in sheep. In cattle, leptomeningitis and suppurative meningoencephalitis was the most frequent neurological disease for the species, and E. coli was the main cause of these lesions. Basilar empyema, mainly diagnosed in cattle, is related to traumatic injuries, mainly in the nasal cavity, and the main etiologic agent was T. pyogenes.


2019 ◽  
Vol 70 (7) ◽  
pp. 2647-2651
Author(s):  
Alina Plesea Condratovici ◽  
Alina Mihaela Elisei ◽  
Decebal Vasincu ◽  
Iulian Dan Cuciureanu ◽  
Aurel Nechita ◽  
...  

Any pathological process is accompanied by quantitative and qualitative changes in metabolism, which is the main form of life manifestation. Metabolism disorders (it is the permanent exchange of substances between the body and the environment) arise if the activity of the central nervous system is affected; the trophic function of the nervous system directs nutrition and metabolism. In this function, the coordinating role belongs to the central nervous system and is made by means of the endocrine glands. Lipids introduced into the body are digested mainly with the help of the pancreatic and intestinal juice and are resorbed through the walls of the small intestine. Even in the intestinal wall, the re-synthesis of fatty acids and glycerine fat occurs. A certain amount of neutral fat is probably resorbed without being split into fatty acids and glycerine. Fats are mainly resorbed through the lymphatic system, in part (about 30%) by means of the portal vein system; the entire fat emulsion penetrates into the blood and its main mass is deposited in certain fat deposits: the adipose subcutaneous cell tissue, the epiploon and the mesenterium of the abdominal cavity, as well as in the fatty layers of the various organs. In fat deposits, processes of lipid formation from carbohydrates and of transformation of higher fatty acids can occur. Lipids from fat deposits are subject to oxidation, especially at the liver level.


Sign in / Sign up

Export Citation Format

Share Document