Influência do óleo de gergelim sobre o desenvolvimento somático e reflexo da prole de ratas tratadas durante a gestação e lactação.

Abstract

Sesame oil, sesame seed from the, is a source of linoleic acid (omega 6), considered an essential fatty acid. This fatty acid is a precursor of other fatty acids and acts as a structural constituent of cell membranes and participate in the formation of hormones, besides the formation of the central nervous system. The maturation of the central nervous system in humans begins during intrauterine life and continues until the first years of postnatal life. The lack of essential fatty acids causes changes in brain development. Thus, this study investigated the effects of sesame oil supply as a source of omega 6, inserted in the diet of female rats during pregnancy and lactation divided into two groups: control group (CG) (n = 15) - treated with 7% of soybean oil and sesame oil group (GOG) (n = 15) - treated with 7% of sesame oil. Were measured and somatic reflex ontogeny, weight weight and tail length (CC). The observed reflections were: Palmar Grasp (PG), Righting (R), Vibrissa Placing (VP), Cliff Avoidance (CA), Negative Geotaxis (NG), Response to Scare (RS) and Free-Fall Righting (FFR). Quanto à maturação somática, foram estudados os seguintes parâmetros: Ear Unfolding (EU), Auditory Conduit Opening (ACO), Eruption of the Lower Incisors (ELI), Eruption of the Upper Incisors (EUI), Aparecimento dos Pelos Epidérmicos (APE), Eye Opening (EO).. The offspring of rats treated with sesame oil showed anticipation in the appearance PP, APV, GN, RS, RDQL, early ripening as the APA, ACO, LIE, APE, increased tail length 1, 7 and 14 days, as well as increased body weight 1, 7 and 14 days, compared with the control group (p <0.05). From the results it could be proved that the sesame oil exerts significantly effect on acceleration / anticipation of most somatic maturation parameters and reflex ontogeny, but also influenced the increase of weight gain and length of the tail in the early days of life in offspring of female rats when treated during pregnancy and lactation.