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Oral lesions, genotoxicity and nitrosamines in betel quid chewers with no obvious increase in oral cancer risk.

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A link between the generation of areca nut-related N-nitrosamines in the saliva, the induction of genotoxic damage in the oral mucosa, as judged by an increase in micronucleated exfoliated cells (MEC), and a low incidence of oral cancer was studied in 2 population groups characterized by their habit

Piper betel Linn (betel vine), the maligned Southeast Asian medicinal plant possesses cancer preventive effects: time to reconsider the wronged opinion.

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Since antiquity, Piper betel Linn (betel vine; family Piperaceae) has been an important medicinal agent in the various traditional and folk systems of medicine in Southeast Asia countries. The leaves are the most valued plant part and in the past were routinely used as a chewing agent to prevent

Areca nut exposure increases secretion of tumor-promoting cytokines in gingival fibroblasts that trigger DNA damage in oral keratinocytes.

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Molecular crosstalk between cancer cells and fibroblasts has been an emerging hot issue in understanding carcinogenesis. As oral submucous fibrosis (OSF) is an inflammatory fibrotic disease that can potentially transform into squamous cell carcinoma, OSF has been considered to be an appropriate

KNOWLEDGE AND PERCEPTION OF ARECA/SMOKELESS TOBACCO USERS ABOUT ORAL CANCER.

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BACKGROUND According to World Health Organization (WHO), six million deaths are attributable to tobacco use globally, of which nearly 1.2 million occur in South-East Asia. Use of smokeless tobacco is highly prevalent in subcontinent and is home to over 250 million smokeless tobacco (ST) users. ST is

Cytogenetic surveillance of tobacco-areca nut (mava) chewers, including patients with oral cancers and premalignant conditions.

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Three cytogenetic endpoints were studied in non-chewing healthy controls and 3 groups of tobacco-areca nut chewers, viz. normal chewers, chewers with oral submucous fibrosis and chewers with oral cancer. Frequencies of sister-chromatid exchanges and chromosome aberrations in peripheral blood

Glutathione S-transferasesP1 AA (105Ile) allele increases oral cancer risk, interacts strongly with c-Jun Kinase and weakly detoxifies areca-nut metabolites.

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The Glutathione S-transferases (GSTs) protects cellular DNA against oxidative damage. The role of GSTP1 polymorphism (A313G; Ile105Val) as a susceptibility factor in oral cancer was evaluated in a hospital-based case-control study in North-East India, because the habit of chewing raw areca-nut (RAN)

Relationship between site of oesophageal cancer and areca chewing and smoking in Taiwan.

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Among 309 male patients, those who had heavily consumed betel and tobacco were more likely than nonchewers (OR=2.91; 95% CI=1.36-6.25) and nonsmokers (OR=2.49; 95% CI=1.02-6.08) to develop cancer in the upper and middle third of the oesophagus, respectively; the effects of alcohol did not dominate

Molecular and cellular cues of diet-associated oral carcinogenesis--with an emphasis on areca-nut-induced oral cancer development.

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In modern times, potent dietary carcinogens are key contributors for neoplastic development. For oral squamous cell carcinoma (OSCC), one of the leading cancer types in developing countries, main oncogenic inducers/enhancers, including areca nut chewing, tobacco smoking, and alcohol consumption,

Areca nut and betel quid chewing among South Asian immigrants to Western countries and its implications for oral cancer screening.

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The South Asian community is the largest and one of the fastest growing minority groups in Canada, according to the 2006 census. These immigrants bring to Canada talents and skills that can promote Canada's economy and cultural diversity, but they also bring lifestyle habits that may lead to serious

Association between areca-stimulated vimentin expression and the progression of head and neck cancers.

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BACKGROUND Areca nut chewing is a common oral habit of Asians that is closely associated with the high incidence of head and neck carcinoma. The purpose of this study was to investigate the impacts of areca nut chewing on neoplastic process of head and neck carcinoma. METHODS Head and neck carcinoma

Inhibitory effect of bupleuri radix saponins on adhesion of some solid tumor cells and relation to hemolytic action: screening of 232 herbal drugs for anti-cell adhesion.

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Anti-cell adhesive activity and hemolytic action of herbal drugs were investigated. Among 232 herbal drugs tested, six showed a remarkable anti-cell adhesive activity, and the extract from the roots of Bupleurum falcatum (Umbelliferae), the semen of Psorala corylifolia (Leguminosae), and the semen

Areca users in combination with tobacco and alcohol use are associated with younger age of diagnosed esophageal cancer in Taiwanese men.

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BACKGROUND Whether the habitual use of substances (tobacco, alcohol, or areca nut (seed of the Areca palm)) can affect the age of esophageal squamous cell carcinoma (ESCC) presentation has rarely been examined. METHODS The study subjects were those who were males and the first time to be diagnosed

Chronic Stimulation of the Autophagy-inducing Ingredient of Areca Nut Promotes Tumor Growth In Vivo Through Up-regulation of Tumoral Autophagy.

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Autophagy can be either tumor promotive or suppressive. We previously identified an autophagy-inducing activity in the 30-100 kDa fraction of areca-nut-extract (ANE 30-100K) and showed that several tumor cells subjected to chronic ANE 30-100K stimulation (CAS) exhibited higher

A Survey of Areca (Betel) Nut Use and Oral Cancer in the Commonwealth of the Northern Mariana Islands.

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Areca nut use is a cause of higher rates of oral cavity cancer in the Commonwealth of the Northern Mariana Islands (CNMI). Little is known about patient insights into the risks of areca nut use worldwide. The purpose of this study is to evaluate perceptions of areca nut use and oral cancer among

Consumption of areca quid, cigarettes, and alcohol related to the comorbidity of oral submucous fibrosis and oral cancer.

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OBJECTIVE Oral submucous fibrosis (OSF) is defined as a precancerous condition, and it is also commonly seen in clinical practice, coexisting with oral cancer. The aim of this study was to identify the effects of areca quid, cigarette, and alcohol on the coexistence of oral cancer and

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