[Epidemiological investigation of chewing fresh or dried betel nut and oral mucosal disease]

Exposure assessment to areca alkaloids in the Chinese populations through areca nut chewing

Chewing areca nuts is popular in China. Areca alkaloids are the major toxic compounds in areca nuts. In this study, the levels of four areca alkaloids (i.e. arecoline, arecaidine, guvacoline and guvacine) in 119 areca nut samples were analyzed and 3030 areca nut consumption questionnaires were collected to investigate the exposure to areca alkaloids in the Chinese populations through areca nut chewing. The levels of arecoline, arecaidine, guvacoline and guvacine in different areca nut products were 0.46-4.97 mg/g, 0.57-7.51 mg/g, 0.08-1.44 mg/g and 0.03-8.48 mg/g, respectively. Chewing fresh areca fruits was the main source of arecoline and the total areca alkaloids exposure. The estimated daily intake (EDI) of arecoline and the total areca alkaloids for the Chinese populations were 1.126 and 2.625 mg/kg BW/day for average exposure, 4.411 and 9.739 mg/kg BW/day for high exposure (P95th). The EDI varied with age and gender. The young male population (≤ 34 years) had the highest EDI than other populations. Concentrated and focused efforts are required to educate the general public, especially the young male population, about the risks of areca nut chewing to reduce exposure to areca alkaloids of the Chinese population.

Supplementary Information

The online version contains supplementary material available at 10.1007/s13197-024-05966-6.

Prevalence of oral submucous fibrosis linking with Areca Nut usage among Indians

The prevalence of oral submucous fibrosis amongst population of Southern Rajasthan is of interest to dentists. Hence, a cross sectional study had been conducted on 3548 patients from 18-60 years age group who visited the Department of the Oral Medicine and Radiology, Pacific Dental College and Research Centre, Bedla, Udaipur was completed. They were subjected to thorough case history related to quid habit in arecanut (Areca catechu L.) form and to diagnose OSMF clinically. 1645 processed form of arecanut users were identified. The prevalence of arecanut chewers in study population has been reported to be 46.36%. The prevalence of OSMF in study population has been reported to be 458 (12.9%). Exact component associated and the mechanism involved in the occurrence of OSMF is still not available in literature and research is going on regarding unveiling this mysterious lesion.

Effect of chewing betel nut on the gut microbiota of Hainanese

Betel nut chewing (BNC) is prevalent in South Asia and Southeast Asia. BNC can affect host health by modulating the gut microbiota. The aim of this study is to evaluate the effect of BNC on the gut microbiota of the host. Feces samples were obtained from 34 BNC individuals from Ledong and Lingshui, Hainan, China. The microbiota was analyzed by 16S rRNA gene sequencing. BNC decreased the microbial α-diversity. Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria were the predominant phyla, accounting for 99.35% of the BNC group. The Firmicutes-to-Bacteroidetes ratio was significantly increased in the BNC group compared to a control group. The abundances of the families Aerococcaceae, Neisseriaceae, Moraxellaceae, Porphyromonadaceae, and Planococcaceae were decreased in the BNC/BNC_Male/BNC_Female groups compared to the control group, whereas the abundances of Coriobacteriaceae, Streptococcaceae, Micrococcaceae, Xanthomonadaceae, Coxiellaceae, Nocardioidaceae, Rhodobacteraceae, and Succinivibrionaceae were increased. In general, the gut microbiome profiles suggest that BNC may have positive effects, such as an increase in the abundance of beneficial microbes and a reduction in the abundance of disease-related microbes. However, BNC may also produce an increase in the abundance of disease-related microbes. Therefore, extraction of prebiotic components could increase the beneficial value of betel nut.

Research Achievements of Oral Submucous Fibrosis: Progress and Prospect

Oral submucous fibrosis (OSMF) is a kind of chronic, insidious disease, and it is categorized into potentially malignant disorders (PMD), which poses a global and regional problem to public health. It is considered to be a multifactorial disease, such as due to areca nut chewing, trace element disorders, and genetic susceptibility. However, there is still no unanimous conclusion on its pathogenesis, diagnosis, and treatment strategies. Hence, this article provides a comprehensive review and prospect of OSMF research, providing scholars and clinicians with a better perspective and new ideas for the research and treatment of OSMF.

A Discourse Analysis on Betel Nut Chewing in Hunan Province, China

Betel nut chewing has become prevalent in Hunan Province, China. There are different voices over its health risks. In spite of this, the local government has not taken any effective measures to control its expansion. It is necessary to reveal the concern of interests and public health behind such voices. This study used qualitative and quantitative methods to investigate the dispute over the health risks of betel nut chewing. The different voices over the risks demonstrate the tension of power, interests and public health among the government, institution, business, media and medical elites. Discursive practices of these institutions and individuals are associated with the exercise of power and expression of interests. With the deep concern about its cancerogenicity, majority of the public hold a negative attitude, and agree that the related industry should be controlled. Faced with conflicting perspectives, the government has the responsibility to clarify the issue and express an official stance. Measures should be taken to protect public health.