PubMed Health⌕ Search

Biomedical subjects

J Hojerová

Publications and source records attributed to J Hojerová.

3 recordsLinked to original sources

[Cytotoxic and genotoxic activity of certain preservative agents in cosmetics].

Cytotoxic effects of the preservative compounds for cosmetics JMAC TD, Bronopol, CA 24, and Euxyl K100 were studied. Bronopol demonstrated the highest cytotoxic effect on the proliferation of V79 and VH10 fibroblast cell lines--the IC100 values being 10 mg/l during the whole experiment. The preservatives CA 24 and Euxyl K100 showed 4-times and 5-times smaller cytotoxic activity than Bronopol IC100 = 42 or 50.3 mg/l). The preservative compounds on silver chloride ions JMAC TD manifested the lowest cytotoxicity of the preservatives tested (IC100 = 150 mg/l); 15-times smaller than Bronopol, 3.5-times smaller than CA 24 and 3-times smaller than Euxyl K100. The biocide JMAC TD did not exhibit mutagenic effects on the bacteria Salmonella typhimurium TA 98 and TA 100.

Animals↗

[Coenzyme Q10--its importance, properties and use in nutrition and cosmetics].

Coenzyme Q10, or ubiquinone, is a nutrient--a vitamin-like substance which plays a crucial role in the generation of cellular energy an in free radical scavenging in the human body. After the age of 35 to 40, the organism begins to lose its ability to synthesize Co Q10 from food and its deficiency develops. Ageing, poor eating habits, stress and infection--they all affect our ability to provide adequate amounts of Co Q10. Therefore Co Q10 supplementation may be very helpful for the organism. The present summarizing study reports the history of the discovery and research, properties, biochemical effects, dosage of Co Q10 deficiency in the human body. A possible use of Co Q10 as a dietary supplement and an ingredient for topical cosmetic products is described.

Aging↗

[Pharmaceutical and cosmetic emulsifiers].

The present review paper summarizes the most significant theoretical knowledge and factors of correct selection of emulsifiers for cosmetic and pharmaceutical topical emulsions. The problems discussed include securing the stability of emulsions, the origin ant the health and ecological defectlessness of the emulsifier, as well as some others. The comparative study presents also a list of some trade names of traditional and newly designed nonionic emulsifiers produces by important manufacturers used or recommended for this type of emulsions.

Cosmetics↗