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[Study on the cytotoxic and DNA damaging effects in oral mucosal fibroblasts by areca nut extract]
Abstract:
An aqueous areca nut extract (ANE) was tested for its cytotoxic effects on cultured human embryo oral mucosal fibroblasts (HE-OMF) in vitro by using the trypan blue and thiazolyl blue (MTT) assay. The ANE decreases the cell survival rate in a dose-dependent manner (P < 0.05). So was the extract in inducing damage on the cellular DNA of HE-OMF in vitro examined by the nick translation assay. The increase in counts per minute (CPM) values was significant (P < 0.05) for comparing all four concentration groups tested, The results suggests that aqueous ANE is highly cytotoxic and capable to induce DNA damage on cultured HE-OMF. It may have potential carcinogenic effect on the oral mucosal membrane of whom habitually chewing the areca nut frequently for quite a long time. Futher study is required to illustrate the detail process and study the mechanism of these effects.
Insights
Aqueous areca nut extract (ANE) is cytotoxic, reducing oral fibroblast survival and damaging cellular DNA in vitro. This suggests a potential carcinogenic effect from habitual areca nut use.
Area of Science:
- Oral pathology
- Cytotoxicity studies
- DNA damage assessment
Context:
- Areca nut chewing is prevalent in many Asian countries.
- Oral submucous fibrosis and oral cancer are associated with areca nut use.
- Understanding the cellular mechanisms of areca nut's toxicity is crucial.
Purpose:
- To investigate the in vitro cytotoxic effects of aqueous areca nut extract (ANE) on human oral mucosal fibroblasts (HE-OMF).
- To assess the DNA-damaging potential of ANE on HE-OMF.
- To explore the potential carcinogenic mechanisms of areca nut.
Summary:
- Aqueous areca nut extract (ANE) significantly decreased HE-OMF cell survival in a dose-dependent manner.
- ANE induced significant DNA damage in HE-OMF, as evidenced by increased CPM values in the nick translation assay.
- The results indicate that ANE possesses high cytotoxicity and genotoxicity towards oral mucosal cells.
Impact:
- The findings suggest a potential carcinogenic risk associated with long-term, habitual areca nut consumption.
- Highlights the need for further research into the specific mechanisms of ANE-induced oral carcinogenesis.
- Informs public health initiatives and preventative strategies related to areca nut chewing.