Although indirect, our data suggest the existence of a vascular isoform of podocin with a different molecular mass. We propose that examination of podocin expression may help differentiate MCD from FSGS.
The effects of 5-aminolevulinic acid (5-ALA) on obesity were investigated using a murine model (diet-induced obese mice). Diet-induced obese mice were divided into 4 groups: a control group (C group), which was fed a high-fat diet; a low-5-ALA dose (10 mg/kg/day) group (10A group); a moderate-5-ALA dose (30 mg/kg/day) group (30A group); and a high-5-ALA dose (100 mg/kg/day) group (100A group). 5-ALA was administered by mixing the high fat diet for 8 weeks. Body weight increases in the 30A and 100A groups were significantly smaller compared with those of the C group. Body fat measurements by X-ray computed tomography indicated that the 100A group showed a tendency toward low visceral fat quantities during the final week of the study. Visceral fat weights in the 30A and 100A groups were slightly low. The levels of serum alanine aminotransferase (ALT) and total cholesterol (TC) in the 10A group was slightly low, whereas the 30A and 100A groups showed significantly lower ALT and TC values. Liver lipid concentration showed a dose-dependent decrease with ALA. Thus, in this diet-induced obese murine model, administration of 5-ALA had a significantly beneficial impact on the visceral fat, serum ALT and TC, and liver lipid concentration.
Quillaja saponin (QS) was examined for its immunostimulating effect on mice and humans after oral administration. Mice fed QS for 24 h significantly increased in chemotactic and phagocytosis activities of peritoneal macrophages. This enhancing effect in both activities continued for 4-d after QS administration. Mice fed QS for 24 h prior to an interperitoneal challenge with Escherichia coli showed a higher survival rate than the control group. Peripheral blood analysis of volunteers showed significant increases in chemotactic and phagocytosis activities after oral administration of QS for 7 d. Furthermore, the volunteers did not show significant changes in immunoglobulin, transaminase, IL-1, or TNF-levels, or in serum albumin concentrations. Thus orally administered QS can effectively enhance the immune response through stimulation of macrophages without adverse effects.
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