Oxygen Supply and Microcirculation of the Brain Cortex

1985 ◽  
pp. 3-19 ◽  
Author(s):  
Elfriede Leniger-Follert
Keyword(s):  
Oxygen Supply ◽  
Brain Cortex ◽  
The Brain

Oxygen supply of the brain cortex in acute nitrite hypoxia in rodents with different ecological specialization

2006 ◽  
Vol 42 (4) ◽  
pp. 424-430
Author(s):  
T. E. Shumilova ◽  
G. B. Weinstein ◽  
V. N. Semernya ◽  
V. I. Shereshkov ◽  
A. D. Nozdrachev ◽  
...  
Keyword(s):  
Oxygen Supply ◽  
Brain Cortex ◽  
Ecological Specialization ◽  
The Brain

Oxygen Supply to the Brain Cortex in SHR and Normotensive Rats

1984 ◽  
pp. 271-279 ◽  
Author(s):  
K. Skolasinska ◽  
H. Günther ◽  
J. Höper ◽  
R. Funk
Keyword(s):  
Oxygen Supply ◽  
Brain Cortex ◽  
The Brain

Oxygen supply of the brain cortex (rat) during severe hypoglycemia

1980 ◽  
Vol 387 (2) ◽  
pp. 121-126 ◽  
Author(s):  
Leszek Krolicki ◽  
Elfriede Leniger-Follert ◽  
Hans-J�rgen Deymann
Keyword(s):  
Oxygen Supply ◽  
Brain Cortex ◽  
Severe Hypoglycemia ◽  
The Brain

scholarly journals Intermittent Hypoxic Conditioning Rescues Cognition and Mitochondrial Bioenergetic Profile in the Triple Transgenic Mouse Model of Alzheimer’s Disease

2021 ◽  
Vol 22 (1) ◽  
pp. 461
Author(s):  
Sónia C. Correia ◽  
Nuno J. Machado ◽  
Marco G. Alves ◽  
Pedro F. Oliveira ◽  
Paula I. Moreira
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Brain Cortex ◽  
Neurodegenerative Disorder ◽  
Special Focus ◽  
Mitochondrial Bioenergetics ◽  
Related Phenotype ◽  
Brain Resilience ◽  
The Brain

The lack of effective disease-modifying therapeutics to tackle Alzheimer’s disease (AD) is unsettling considering the actual prevalence of this devastating neurodegenerative disorder worldwide. Intermittent hypoxic conditioning (IHC) is a powerful non-pharmacological procedure known to enhance brain resilience. In this context, the aim of the present study was to investigate the potential long-term protective impact of IHC against AD-related phenotype, putting a special focus on cognition and mitochondrial bioenergetics and dynamics. For this purpose, six-month-old male triple transgenic AD mice (3×Tg-AD) were submitted to an IHC protocol for two weeks and the behavioral assessment was performed at 8.5 months of age, while the sacrifice of mice occurred at nine months of age and their brains were removed for the remaining analyses. Interestingly, IHC was able to prevent anxiety-like behavior and memory and learning deficits and significantly reduced brain cortical levels of amyloid-β (Aβ) in 3×Tg-AD mice. Concerning brain energy metabolism, IHC caused a significant increase in brain cortical levels of glucose and a robust improvement of the mitochondrial bioenergetic profile in 3×Tg-AD mice, as mirrored by the significant increase in mitochondrial membrane potential (ΔΨm) and respiratory control ratio (RCR). Notably, the improvement of mitochondrial bioenergetics seems to result from an adaptative coordination of the distinct but intertwined aspects of the mitochondrial quality control axis. Particularly, our results indicate that IHC favors mitochondrial fusion and promotes mitochondrial biogenesis and transport and mitophagy in the brain cortex of 3×Tg-AD mice. Lastly, IHC also induced a marked reduction in synaptosomal-associated protein 25 kDa (SNAP-25) levels and a significant increase in both glutamate and GABA levels in the brain cortex of 3×Tg-AD mice, suggesting a remodeling of the synaptic microenvironment. Overall, these results demonstrate the effectiveness of the IHC paradigm in forestalling the AD-related phenotype in the 3×Tg-AD mouse model, offering new insights to AD therapy and forcing a rethink concerning the potential value of non-pharmacological interventions in clinical practice.

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