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Aims: The study is intended to compare the freshly collected henna (Lawsonia inermis L.) and the market henna in term of microscopical key elements and heavy metals contamination. Moreover, this study is aimed to investigate the effect of henna and its oily additives on kidney histology in female mice. Study Design: Department of Pharmacognosy, Faculty of Pharmacy, University of Tripoli and Animals House, Biotechnology Research Center in 2010. Methodology: The powders of collected and market henna have been subjected to a microscopical study with magnification of 5x then 40 x to investigate the henna key elements, which are calcium oxalate clusters, anomocytic stomata, starch grains and fibers. Three elements: arsenic (As), mercury (Hg) and lead (Pd) were analyzed by atomic absorption spectroscopy (AAs) Original Research Article Mughrbi et al.; AJARR, 10(2): 8-15, 2020; Article no.AJARR.56673 9 for the collected and market henna. For histopathological study, an aqueous extracts of L. inermis leaves and L. inermis leaves-oils were prepared by maceration. Eighteen female Albino Wister mice (3-4-months, 20-25 gm) were injected with the prepared extracts subcutaneously by dose 50 ml/kg/day for 5 days. Kidneys were collected and subjected to histopathological study. Results: From this study, the microscopical investigation exhibited the presence of some elements which are never mentioned as the henna key elements. Both market and collected henna were contaminated with a high level of heavy metals specially lead (Pd). The histopathological findings implied that there are many histological changes on the kidney tissues such as aggregation of round cells and congestion of blood vessels. Conclusion: The market henna might be adulterated with other types of plant. The presence of a high concentration of lead (Pd) in the collected henna as well as the market henna might be considered as the cause of some L. inermis adverse effects. L. inermis leaves and L. inermis leaves-oils aqueous extracts implied many abnormalities in the kidney tissues.

Microscopical Characters, Heavy Metals Level and Histopathological Effects of Lawsonia inermis L. Leaves in Female Mice