arecaidine/fibrose

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In vitro production of interleukin-6 by human gingival, normal buccal mucosa, and oral submucous fibrosis fibroblasts treated with betel-nut alkaloids.

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This study aimed to assess the possibility of a direct effect of betel-nut alkaloids arecoline and arecaidine on cell proliferation and interleukin-6 (IL-6) production by cultured fibroblasts from human normal gingiva, buccal mucosa and oral submucous fibrosis (OSF) buccal mucosa in vitro. Confluent

Molecular Pathology of Malignant Transformation of Oral Submucous Fibrosis.

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Oral submucous fibrosis (OSF) is prevalent mostly in Southeast Asia, particularly in the Indian subcontinent. Chewing betel nuts and betel leaves, with or without tobacco, has been associated with OSF. Betel quid contents including guvacine, arecoline, guvacoline, arecaidine, and chavibetol are

Augmented mRNA expression of tissue inhibitor of metalloproteinase-1 in buccal mucosal fibroblasts by arecoline and safrole as a possible pathogenesis for oral submucous fibrosis.

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Oral submucous fibrosis (OSF) is an oral precancerous condition, and is associated with betel quid (BQ) chewing habits. It is a disorder of excessive deposition of collagen in the connective tissues that results from disruption in the regulation of the equilibrium between matrix metalloproteinases

Deficiency in collagen and fibronectin phagocytosis by human buccal mucosa fibroblasts in vitro as a possible mechanism for oral submucous fibrosis.

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Oral submucous fibrosis (OSF), a chronic oral mucosal condition commonly found in south Asians, is a disorder characterized by a quantitative as well as a qualitative alteration of collagen deposition within the subepithelial layer of the oral mucosa. Since degradation of collagen by fibroblast

Activation of TGF-β pathway by areca nut constituents: a possible cause of oral submucous fibrosis.

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Oral submucous fibrosis (OSF) is a chronic inflammatory disease characterized by the accumulation of excess collagen, and areca nut chewing has been proposed as an important etiological factor for disease manifestation. Activation of transforming growth factor-β signaling has been postulated as the

Areca nut extract lowers the permeability of vaginal mucosa to reduced arecoline and arecaidine.

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Areca nut chewing has been implicated in the development of oral cancer and oral submucous fibrosis. Arecoline and arecaidine, which are alkaloids present in the areca nut, are thought to play a major role in the development of adverse effects resulting from this chewing habit. Because these

An in-vitro comparison of human fibroblasts from normal and oral submucous fibrosis tissue.

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Fibroblasts cultured in vitro from normal buccal tissue and from tissue from oral submucous fibrosis (OSF) associated with betel-nut chewing showed no significant difference in their rates of proliferation in culture, nor in the rate at which they hydrolysed the betel nut alkaloid arecoline to

Areca nut-induced buccal mucosa fibroblast contraction and its signaling: a potential role in oral submucous fibrosis--a precancer condition.

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Betel quid (BQ) chewing is an oral habit that increases the risk of oral cancer and oral submucous fibrosis (OSF), a precancerous condition showing epithelial atrophy and tissue fibrosis. Persistent fibroblast contraction may induce the fibrotic contracture of tissue. In this study, we found that

Diffusion of reduced arecoline and arecaidine through human vaginal and buccal mucosa.

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Because alkaloids from areca nut, arecoline and arecaidine, have been implicated in the development of oral submucous fibrosis, we determined their diffusion kinetics through human buccal and vaginal mucosa. Four clinically healthy vaginal mucosa specimens (mean patient age +/- standard deviation:

The effects of arecoline on the release of cytokines using cultured peripheral blood mononuclear cells from patients with oral mucous diseases.

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In Taiwan there is a significant correlation between oral precancer diseases and oral cancer associated with the betel quid chewing habit. The carcinogenic components of betel quid are arecoline, arecaidine and safrole. However, it is unknown whether these substances influence the immune functions.

High-performance liquid chromatographic determination of arecoline in human saliva.

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Arecoline (methyl-1,2,5,6-tetrahydro-1-methyl nicotinate) is an alkaloid found in the areca catechu nut which is a major component of the 'betel quid' chewed by a large proporation of the population in India, South Asia and the South Pacific islands. It is commonly associated with the development of

Areca nut alkaloids induce irreparable DNA damage and senescence in fibroblasts and may create a favourable environment for tumour progression.

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BACKGROUND Oral submucous fibrosis (OSMF) is a pre-malignant condition that is strongly associated with the areca nut alkaloids, arecoline (ARC) and arecaidine (ARD). The condition is characterised by the presence of senescent fibroblasts in the subepithelial mesenchyme which have the potential to

Characterization of protein adducts formed by toxic alkaloids by nano-scale liquid chromatography with mass spectrometry.

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Betel quid chewing is associated with cytotoxicity, genotoxicity and carcinogenicity in diseases such as oral cancer, liver cirrhosis, hepatocellular carcinoma and diabetes mellitus. Arecoline and arecaidine, which are the main alkaloids in the areca nut, are potential exposure biomarkers in

Role of areca nut in betel quid-associated chemical carcinogenesis: current awareness and future perspectives.

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Betel quid (BQ)-chewing is a popular oral habit with potential links to the occurrence of oral cancer. Many of the literature-based studies reveal that areca nut (AN) extract may demonstrate mutagenic and genotoxic effects, in addition to inducing preneoplastic as well as neoplastic lesions in

Stimulation of human buccal mucosa fibroblasts in vitro by betel-nut alkaloids.

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Oral submucous fibrosis (OSF) is characterized by excessive collagen production by mucosal fibroblasts and is associated with the habitual chewing of betel-nuts (Areca catechu); nut extracts stimulate fibroblast activity in vitro. The metabolism of arecoline, the major alkaloid in the nut, by human

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