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Effects of spermidine treatment on neurobehavioral development in intrauterine growth retarded (IUGR) rats
Insights
Spermidine (SPMD) injections improved neurobehavioral development in undernourished newborn rats. This suggests spermidine
Area of Science:
- Neuroscience
- Developmental Biology
- Pharmacology
Background:
- Polyamines are known to promote development in newborn rats.
- Undernutrition can impair neurobehavioral development in early life stages.
Purpose of the Study:
- To investigate the effects of spermidine (SPMD) on neurobehavioral development in undernourished rats.
- To assess if SPMD can mitigate developmental deficits caused by intrauterine growth retardation (IUGR).
Main Methods:
- Daily subcutaneous injections of spermidine (SPMD) were administered to newborn rats with IUGR.
- Neurobehavioral development was evaluated using gripping and righting reflexes.
- Measurements were taken at various postnatal days up to 30 days.
Main Results:
- SPMD-treated IUGR rats achieved righting reflex control comparable to control rats by 30 days postnatal.
- SPMD treatment led to a decline in gripping reflex values in IUGR rats, reaching control levels by 30 days postnatal.
Conclusions:
- Exogenous spermidine (SPMD) shows potential utility in improving neurobehavioral development in undernourished rats.
- These findings suggest a possible clinical relevance for SPMD in managing developmental issues related to undernutrition.
Abstract:
It was previously shown that polyamine treatment could induce precocious development of several somatic and neurobehavioral functions in newborn rats. This study investigates the effects of daily injections of spermidine (SPMD) 50 microl/10 g s.c. on neurobehavioral development of newborn rats experiencing undernutrition. Neurobehavioral development was assessed by measurements of gripping and righting reflexes. SPMD treated intrauterine growth retarded (IUGR) rats reached righting reflex control values at 30 days postnatal (1.87 +/- 0.78 s vs 1.75 +/- 0.66 s). Beginning from 7 days postnatal, gripping reflex values of SPMD treated IUGR rats declined, reaching that of controls at 30 days postnatal (1.77 +/- 91 degrees vs 1.82 +/- 65 degrees). These results suggest the utility of exogenous SPMD in rats experiencing undernutrition, thus indicating a clinical relevance.
