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<p><b>OBJECTIVE</b>To retrospectively analyze oral lichen planus (OLP) patients and to summarize the clinical characteristic of OLP in Chinese patients.</p><p><b>METHODS</b>A total of 724 patients with histologically and clinically confirmed OLP were collected from department of oral mucosa in School of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University between 1978 and 2006.</p><p><b>RESULTS</b>The OLP patients were followed up from 1 month to 259 months (mean 21 months). Of the 724 patients, 68.23% were women and 31.77% were men. The buccal mucosa was the most common site of involvement in each form, followed by the dorsal tongue, ventral tongue, lip, gingiva, palate and the floor of mouth. The reticular form of the disease was the predominant type in 53.82% of patients at initial presentation. About 48.76% of the patients had multiple oral sites of involvement. Fifteen OLP lesions developed into carcinoma, the malignant transformation rate was 2.07%.</p><p><b>CONCLUSIONS</b>Because OLP has potential of malignant change, a long time and periodical follow-up is of great importance for detection of malignant lesions.</p>
Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Young Adult , Follow-Up Studies , Lichen Planus, Oral , Epidemiology , Retrospective StudiesABSTRACT
Objective To explore the expression of osteopontin (OPN) in mucosal epithelium of oral local lesion in patients with oral lichen planus(OLP). Methods Forty patients with pathologically-confirmed OLP (erosive OLP,n=15; reticular OLP,n=25) were investigated,among whom 17 were complicated with mild dysplasia. Mucosal epithelium of oral local lesion was examined for the expression of OPN by immunohistochemical method. Forty healthy subjects were served as normal controls. Results The positive expression rates of OPN were 65.4% and 82.4%,respectively in patients with OLP and those complicated with mild dysplasia,and both were significantly higher than that in normal controls (10.0%) (P0.05),while both were significantly higher than that in normal controls (P
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Objective To examine the inhibitory effect of Chinese herbal Compound Dongju on 4-nitroquinoline 1-oxide(4NQO)-induced tongue carcinogenesis in rats. Methods A total of 85 Wistar rats were divided into four groups: model group(n=35),administration group(n=35),normal control group(n=5) and herb control group(n=10).4NQO dissolved in drinking water was administered orally to induce tongue carcinogenesis in rats.The herb compound was injected into the stomach of the rats during oral carcinogenesis.Rats were sacrificed at 9,13,20,24 and 32 weeks from the beginning of the experiment.The tongues of the rats were dissected for gross and histological assessment,and SP immunohistochemical method was also employed to detect the expression of cyclin D1 in the specimens. Results Compared with the model group,the incidence of dysplasia and the positive rate of cyclin D1 were suppressed by Compound Dongju(P
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Objective To investigate the chemopreventive potential of salvianolic acid B against 7,12-dimethylbenz(a)anthracene(DMBA)-induced hamster buccal pouch carcinogenesis with respect to angiogenesis. Methods(Sixty) male Syrian golden hamsters were randomly divided into 4 groups(group A and B,n=20;group C and D,(n=10).) DMBA solution(0.5% in acetone) was applied topically to the right cheek pouch of male Syrian golden hamsters in group A and B,while animals in group C were painted with acetone,3 times a week for 6 weeks.Animals in group D received neither DMBA nor acetone in the first 6 weeks.Two days after the last treatment of(DMBA,) animals in group B and D received salvianolic acid B daily(10 mg/kg) by gavage,while animals in group A and C received same volume of saline,for the next 12 weeks.At the end of the experiment,animals were sacrificed and tissue samples were collected for histopathological and immunohistochemical examination. Results Salvianolic acid B significantly decreased the incidence of squamous carcinoma(P
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<p><b>OBJECTIVE</b>To investigate the preventive effect of genistein on the malignant transformation of oral leukoplakia in hamster cheek pouch.</p><p><b>METHODS</b>Sixty male Syrian golden hamsters were randomly divided into 4 groups, with two of 20 and two of 10. DMBA solution (0.5% in acetone) was applied topically to the left cheek pouch of male Syrian golden hamsters in group A and B, while animals in group C were painted with acetone, 3 times a week for 6 weeks. For the next 12 weeks, animals in group B received genistein (10 mg.kg(-1).d(-1)) daily by gavage; animals in group A and C received same volume of saline; animals in group D serving as blank control. At the end of the experiment, animals were sacrificed and tissue samples were collected for histopathological examination.</p><p><b>RESULTS</b>No significant differences in the tumor latency and tumor incidence were observed between the control and genistein treated group.</p><p><b>CONCLUSIONS</b>No inhibitory effect of genistein on the transformation of oral leukoplakia was observed in hamster.</p>
Subject(s)
Animals , Cricetinae , Male , Genistein , Pharmacology , Therapeutic Uses , Leukoplakia, Oral , Pathology , Mesocricetus , Mouth Mucosa , Pathology , Precancerous Conditions , PathologyABSTRACT
<p><b>OBJECTIVE</b>To evaluate the sensitivity and resistance of pathogenic oral Candida spp. isolated from head and neck cancer patients treated with radiotherapy or chemotherapy to antifungal agents. To screen antifugal agents from Chinese traditional and herbal drugs by NCCLS M27-A2 method.</p><p><b>METHODS</b>Using YBC Test Kit to identify 20 clinical oral Candida isolated from head and neck cancer patients treated with radiotherapy or chemotherapy. The in vitro susceptibilities of 20 oral Candida spp. to 5-flucytosine (5-FC), itraconazole (ITR), fluconazole (FLU), the extracts of 6 Chinese traditional and herbal drugs (caltrop, honeysuckle flower, dandelion, green tea, pine bark, red trefoil) and utility componets of 7 Chinese traditional and herbal drugs (sophorcarpidine, aloperine, archin, glycyrrhizic acid, glycosides of white peony root, glycosides of baikal skullcap root, hydrochloric berberine) were determined by NCCLS M27-A2 method.</p><p><b>RESULTS</b>The proportion of no-C. albicans in all Candida spp. were 25%. All strains were sensitive to 5-flucytosine, 25% stains were resistant to fluconazole and 40% stains were resistant to itraconazole. In all agents from Chinese traditional and herbal drugs, glycosides of white peony root and hydrochloric berberine (C20H18CINO4) exhibited antifungal activity, especially to C. glabrates.</p><p><b>CONCLUSION</b>The proportion of no-C. albicans in all oral Candida spp. isolated from head and neck cancer patients treated with radiotherapy or chemotherapy was pretty high. NCCLS M27-A2 micro-dilution method is a reliable and reproducible method and can be used to screen antifugal agents from Chinese traditional and herbal drugs.</p>