ArticleActa cirurgica brasileira2026
Effects of maternal arginine supplementation during lactation on offspring growth and wound healing in an experimental rat model of intrauterine malnutrition.
Article in Acta cirurgica brasileira, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the effects of maternal arginine-enriched diet during lactation, following gestational undernutrition, on offspring growth and wound healing.
methodsPregnant Wistar rats were divided into two groups during gestation: control (C; ad libitum diet) and undernourished (Und; 60% of control diet). After delivery, the undernourished mothers were reassigned to two subgroups: ad libitum + Impact® (Arg) and ad libitum + Nutren® (Hh). Evaluated parameters included offspring anthropometric measurements, serum albumin, tensile strength, and collagen morphometry at the surgical wound. Statistical analyses included analysis of variance (ANOVA) and Tukey's, Student's t-test, and Fisher's test.
resultsMaternal immunonutrition during lactation promoted recovery of offspring weight (C = 29.21 ± 2.86 g; Arg = 36.08 ± 5.38 g; p = 0.0009) and body length (C = 9.87 ± 0.32 cm; Arg = 10.91 ± 0.73 cm; p = 0.0008), shifting values from significantly lower at birth to higher than controls by weaning. Offspring healing parameters showed no significant differences compared with controls.
conclusionAn arginine-enriched diet provided to lactating rats malnourished during gestation significantly improved offspring anthropometric growth and supported wound healing following surgery at weaning.
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