[Disorders of oxygen supply and tissue metabolism and their correction in rats with experimental rickets]

Area of Science:

• Biochemistry
• Physiology
• Pediatric Research

Background:

• Rickets, a condition affecting bone development, can lead to systemic metabolic and physiological disturbances.
• Oxygen supply and utilization are critical for tissue function, particularly in developing organs.

Purpose of the Study:

• To investigate indices of oxygen supply in preadolescent rats with experimental rickets.
• To determine the efficacy of piracetam and vitamin D3 in correcting oxygen transport and utilization disturbances.

Main Methods:

• Induction of experimental rickets in preadolescent rats.
• Assessment of oxygen transport, capillary-tissue diffusion, and tissue oxygen utilization in brain, liver, and skeletal muscles.
• Evaluation of the effects of piracetam and vitamin D3 administration.

Main Results:

• Experimental rickets caused significant disturbances in oxygen supply, including impaired transport, diffusion, and utilization across multiple tissues.
• The severity of these oxygen supply deficits correlated with the degree of rickets.
• Administration of piracetam and vitamin D3 ameliorated tissue hypoxia and normalized metabolic disturbances.

Conclusions:

• Experimental rickets in preadolescent rats leads to widespread tissue hypoxia.
• Piracetam and vitamin D3 are effective in correcting oxygen supply disturbances and mitigating hypoxia in experimental rickets.