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An unusually substituted coumarin, named poligalen, was isolated from a chloroform extract of the aerial parts of Polygala boliviensis. This coumarin was identified by one- and two-dimensional NMR techniques, and the structure of the compound was confirmed by X-ray diffraction. Poligalen exhibits immunomodulatory effects, reducing the levels of IL-6 and TNF after LPS stimulation in peritoneal macrophages...
The purpose of the present study was to evaluate the effects of maternal protein and energy restriction during lactation on the bodyweight and skull dimensions of pups at weaning. At parturition, Wistar rat dams were randomly assigned to the following groups: (i) control group (C), free access to a standard laboratory diet containing 23% protein; (ii) protein-energy-restricted group (PER), free access...
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