Abstract Title:

Monosodium glutamate suppresses the female reproductive function by impairing the functions of ovary and uterus in rat.

Abstract Source:

Environ Toxicol. 2018 Feb ;33(2):198-208. Epub 2017 Nov 9. PMID: 29119727

Abstract Author(s):

Mukti Mondal, Kaushik Sarkar, Partha Pratim Nath, Goutam Paul

Article Affiliation:

Mukti Mondal


The aim of the present study was to examine the effect of monosodium glutamate (MSG) on the functions of ovary and uterus in rat. Virgin female rats of Charles Foster strain (120 gms approximately) were administrated MSG by oral gavage at a dose level of 0.8, 1.6, 2.4 gm/kgBW/day, respectively for 30 and 40 days duration. We observed a significant decrease in the duration of proestrus, estrus and metestrus phases, and increase in the duration of diestrus phase and diestrus index compared to control. We found significant increase in the levels of serum LH, FSH and estradiol in test groups of rat. We also observed significant increase in the number of primary and primordial follicles, increase in the size of graafian follicle, and decrease in the size of corpus luteum. Further, we have seen significant increase in the activities SOD, CAT and GST, decrease in the activities GR and GPx, and decrease MDA level in MSG exposed groups. These results suggest that MSG impairs the functions of the ovary probably by augmenting the release of FSH, LH and estradiol; promoting the follicular maturation and improving the biochemical mechanism for antioxidant defense. We also observed significant potentiation of the force of contraction of uterus in estrus, metestrus and diestrus phases. This result suggests that MSG potentiates the contraction of uterus probably by stimulating the estradiol sensitivity to oxytocin. From the results it is concluded that MSG suppresses the female reproductive function in rat probably by impairing the functions of ovary and uterus.

Study Type : Animal Study

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