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Abstract Title:

Fructose consumption during pregnancy and lactation causes DNA damage and biochemical changes in female mice.

Abstract Source:

Mutagenesis. 2020 Jan 22. Epub 2020 Jan 22. PMID: 31967303

Abstract Author(s):

Marina Lummertz Magenis, Adriani Paganini Damiani, Pamela Souza de Marcos, Ellen de Pieri, Emanuel de Souza, Thais Ceresér Vilela, Vanessa Moraes de Andrade

Article Affiliation:

Marina Lummertz Magenis

Abstract:

The consumption of fructose during pregnancy can cause hyperglycaemia and may stimulate production of reactive oxygen species; however, there are only a few studies reporting whether fructose consumption during pregnancy causes DNA damage. Therefore, the aim of this study was to evaluate the effects of fructose consumption on genetic and biochemical parameters in Swiss mice treated during pregnancy and lactation. For this, 15 couples of 60-day-old Swiss mice were divided into three groups of five couples: negative control (water) and two fructose groups (fructose dose of 10%/l and 20%/l). During this period, we evaluated food consumption, energy efficiency and body weight. Samples of blood were collected from the females before copulation, after the 15th day of conception and on the 21st day after the lactation period, for the glycaemic and lipid profiles as well as comet assay and micronucleus (MN) test. Comet assay and MN test evaluate DNA damage and clastogenicity, respectively. In the gestation and lactation period, the two fructose doses tested showed DNA damage as observed in the comet assay, which is associated with an increase in dietary intake, body weight, lipid profile and fasting glycaemia in females. Thus, it can be suggested that the high consumption of fructose during these periods is harmful for pregnancy and lactation.

Study Type : Animal Study

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