Αρχειοθήκη ιστολογίου

Παρασκευή 29 Σεπτεμβρίου 2017

Second primary cancer after major salivary gland carcinoma

Abstract

Background

We investigated the risk of second primary cancers after major salivary gland carcinoma in Finland, with a population of 5.5 million.

Methods

Nationwide cancer registry data were used to identify patients with major salivary gland carcinoma diagnosed between 1953 and 2014. Standardized incidence ratios (SIRs) were estimated to compare their second primary cancer risk with the respective site-specific cancer risk in the general population.

Results

There were 1727 patients with major salivary gland carcinomas and 222 second primary cancers had been diagnosed in these patients (SIR 1.43). The risk was increased for cancers of the thyroid (SIR 5.12), breast (SIR 1.63), respiratory organs (SIR 1.63), male genital organs (SIR 1.48), melanoma of the skin (SIR 3.35), and nonmelanoma skin cancer (SIR 2.50). The risk was high during the first 5 years and after 20 years of diagnosis.

Conclusion

Second primary cancers can occur among patients with major salivary gland carcinoma even after a long time period. This needs to be recognized in the follow-up of these patients.



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Giardia duodenalis et son implication dans diverses dermatoses

Publication date: Available online 29 September 2017
Source:Annales de Dermatologie et de Vénéréologie
Author(s): P. Humbert, A. Guichard, I. Bennani, S. Chiheb
ObjectifAu cours de ces trente dernières années, la communauté scientifique s'est de plus en plus intéressée à la flore intestinale, microbiote ou pathogène et son impact sur les autres organes. La possibilité qu'un agent microbien intestinal soit un facteur étiologique de symptômes cutanés n'est plus à démontrer. Un parasite, en particulier, a fait l'objet de nombreuses investigations : Giardia duodenalis. L'objectif de ce travail était de dresser une revue complète des publications démontrant l'implication de G. duodenalis dans diverses dermatoses.MéthodeUne revue de la littérature a été réalisée via différentes bases de données (Medline, Pubmed et Google Scholar) pour la période de 1975 à 2015. Parmi la trentaine de cas décrits depuis 1976, nous en rapportons ici une vingtaine qui nous semblent les plus objectifs et cliniquement pertinents.Résultats et discussionBien qu'il s'agisse le plus souvent de cas isolés, cette revue démontre que la giardiose intestinale peut être associée à des dermatoses variées par l'intermédiaire de mécanismes inflammatoires, allergiques ou d'hyperperméabilité intestinale, voire en être elle-même le facteur étiologique. Les lésions cutanéomuqueuses sont variées : urticaire, angio-œdème, érythème noueux, syndrome de Wells… Le rôle et l'origine de l'infestation étant souvent inconnus, il est alors difficile de déterminer l'intervalle de temps entre l'infestation parasitaire et l'apparition des lésions cutanées. C'est pourquoi il faut discuter un examen parasitologique des selles à la recherche de ce parasite devant une urticaire ou un angio-œdème chronique ou récidivant, une dermatite atopique sévère, voire même proposer un traitement d'épreuve, tant celui-ci est aisé, et les examens de selles peu sensibles.BackgoundOver the last thirty years, the scientific community has become increasingly interested in the intestinal flora, whether commensal or pathogenic, and its impact on other organs. In dermatology, the correlation between intestinal microbial agents and cutaneous lesions is well established. Giardia duodenalis, an intestinal parasite, has been particularly widely studied. The aim of this work is to provide a review of studies demonstrating the involvement of G. duodenalis in various forms of dermatosis.Patients and methodsThe data were obtained by an English-language literature search of Medline, PubMed and Google Scholar for the period 1975–2015. Among the thirty case reports since 1976, we selected the twenty most objective and clinically relevant.Results and discussionThis review demonstrates that intestinal giardiasis may be an etiological factor, either alone or in combination with other agents, of various dermatoses through inflammatory and allergic mechanisms or intestinal hyperpermeability. The mucocutaneous lesions are varied: urticaria, angioedema, atopic dermatitis, erythema nodosum, Wells syndrome, among others. The role and origin of the infection are often unknown, and it is thus difficult to determine the interval between parasite infestation and the onset of skin lesions. Consequently, a fecal examination to identify G. duodenalis should be considered in chronic urticaria or angioedema, and where atopic dermatitis occurs in adulthood without any specific etiology. Therapeutic test should be done in every suspicion.



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Diagnostic accuracy of PCR-based detection tests for Helicobacter Pylori in stool samples: A systematic review and meta-analysis

Abstract

Background

Although different methods have been established to detect Helicobacter pylori (H. pylori) infection, identifying infected patients is an ongoing challenge. The aim of this meta-analysis was to provide pooled diagnostic accuracy measures for stool PCR test in the diagnosis of H. pylori infection.

Methods

In this study, a systematic review and meta-analysis were carried out on various sources, including MEDLINE, Web of Sciences, and the Cochrane Library from April 1, 1999, to May 1, 2016. This meta-analysis adheres to the guidelines provided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses report (PRISMA Statement). The clinical value of DNA stool PCR test was based on the pooled false positive, false negative, true positive, and true negative of different genes.

Results

Twenty-six of 328 studies identified met the eligibility criteria. Stool PCR test had a performance of 71% (95% CI: 68-73) sensitivity, 96% (95% CI: 94-97) specificity, and 65.6 (95% CI: 30.2-142.5) diagnostic odds ratio (DOR) in diagnosis of H. pylori. The DOR of genes which showed the highest performance of stool PCR tests was as follows: 23S rRNA 152.5 (95% CI: 55.5-418.9), 16S rRNA 67.9 (95%CI: 6.4-714.3), and glmM 68.1 (95%CI: 20.1-231.7).

Conclusions

The sensitivity and specificity of stool PCR test are relatively in the same spectrum of other diagnostic methods for the detection of H. pylori infection. In descending order of significance, the most diagnostic candidate genes using PCR detection were 23S rRNA, 16S rRNA, and glmM. PCR for 23S rRNA gene which has the highest performance could be applicable to detect H. pylori infection.



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Dermoscopic features of a case of external dental fistula



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Apoptosis induced by caffeic acid phenethyl ester in human oral cancer cell lines: Involvement of Puma and Bax activation

Publication date: December 2017
Source:Archives of Oral Biology, Volume 84
Author(s): Hyun-Ju Yu, Ji-Ae Shin, In-Hyoung Yang, Dong-Hoon Won, Chi Hyun Ahn, Hye-Jeong Kwon, Jeong-Sang Lee, Nam-Pyo Cho, Eun-Cheol Kim, Hye-Jung Yoon, Jae Il Lee, Seong-Doo Hong, Sung-Dae Cho
ObjectiveCaffeic acid phenethyl ester (CAPE), a natural honeybee product exhibits a spectrum of biological activities including antimicrobial, anti-inflammatory, antioxidant and antitumor actions. The purpose of this research was to investigate the anticancer potential of CAPE and its molecular mechanism in human oral cancer cell lines (YD15, HSC-4 and HN22 cells).DesignTo determine the apoptotic activity of CAPE and identify its molecular targets, trypan blue exclusion assay, soft agar assay, Western blot analysis, DAPI staining, and live/dead assay were performed.ResultsCAPE significantly suppressed transformation of neoplastic cells induced by epidermal growth factor (EGF) and 12-O-tetradecanoylphorbol 13-acetate (TPA) without inhibiting growth. CAPE treatment inhibited cell growth, increased the cleavages of caspase-3 and poly (ADP-ribose) polymerase (PARP), and augmented the number of fragmented nuclei in human oral cancer cell lines. CAPE activated Bax protein causing it to undergo a conformational change, translocate to the mitochondrial outer membrane, and oligomere. CAPE also significantly increased Puma expression and interestingly Puma and Bax were co-localized.ConclusionOverall, these results suggest that CAPE is a potent apoptosis-inducing agent in human oral cancer cell lines. Its action is accompanied by up-regulation of Bax and Puma proteins.



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Electroneurography in the acute stage of facial palsy as a predictive factor for the development of facial synkinesis sequela

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Publication date: Available online 29 September 2017
Source:Auris Nasus Larynx
Author(s): Takahiro Azuma, Katsuhiko Nakamura, Mika Takahashi, Hitomi Miyoshi, Naoki Toda, Hidetaka Iwasaki, Noriaki Takeda
ObjectiveWe investigated whether the value of ENoG is a predictive factor for the development of facial synkinesis in patients with facial palsy.MethodsThe degree of oral-ocular synkinesis was evaluated quantitatively by an asymmetry of the interpalpebral space width during the mouth movement (% eye opening). Twenty healthy volunteers without a history of facial palsy (12 men and 8 women; 25–65 years old; mean age: 42.3±9.7years) were included in the study to examine the normal range of % eye opening. Fifty-one patients with facial palsy including 38 with Bell palsy and 15 with herpes zoster oticus (28 men and 25 women; 11–86 years old; mean age: 54±19years) were enrolled to examine the relationship between the ENoG value 10–14days after the onset of facial palsy, and the % eye opening 12 months later. Receiver operating characteristic (ROC) curve for the ENoG value was then used to decide the optimum cut-off value as a predictor of the development of oral-ocular synkinesis.ResultsWe defined a % eye opening inferior to 85% as an index of the development of oral-ocular synkinesis. There was a significant correlation between the values of ENoG 10–14days after the onset of facial palsy and those of % eye opening 12 months later (ρ=0.81, p<0.001). The area under the ROC curve for the ENoG value was the predictor for the development of oral-ocular synkinesis at 0.913 (95%CI: 0.831–0.996, p<0.001). The optimum cut-off value of ENoG 10–14days after the onset of facial palsy was 46.5% to predict the development of oral-ocular synkinesis 12 months after the onset of facial palsy (sensitivity 97.1% and specificity 77.5%).ConclusionThe value of ENoG 10–14days after the onset of facial palsy is a predictive factor for the development of facial synkinesis 12 months later. Since facial palsy patients with a ENoG value inferior to 46.5% have a high risk of developing synkinesis, they should receive the facial biofeedback rehabilitation with a mirror as a preventive therapy.



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Comparison of snoring sounds between natural and drug-induced sleep recorded using a smartphone

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Publication date: Available online 28 September 2017
Source:Auris Nasus Larynx
Author(s): Soo Kweon Koo, Soon Bok Kwon, Ji Seung Moon, Sang Hoon Lee, Ho Byung Lee, Sang Jun Lee
ObjectivesSnoring is an important clinical feature of obstructive sleep apnea (OSA), and recent studies suggest that the acoustic quality of snoring sounds is markedly different in drug-induced sleep compared with natural sleep. However, considering differences in sound recording methods and analysis parameters, further studies are required. This study explored whether acoustic analysis of drug-induced sleep is useful as a screening test that reflects the characteristics of natural sleep in snoring patients.Subjects and materialsThe snoring sounds of 30 male subjects (mean age=41.8years) were recorded using a smartphone during natural and induced sleep, with the site of vibration noted during drug-induced sleep endoscopy (DISE); then, we compared the sound intensity (dB), formant frequencies, and spectrograms of snoring sounds.ResultsRegarding the intensity of snoring sounds, there were minor differences within the retrolingual level obstruction group, but there was no significant difference between natural and induced sleep at either obstruction site. There was no significant difference in the F1 and F2 formant frequencies of snoring sounds between natural sleep and induced sleep at either obstruction site. Compared with natural sleep, induced sleep was slightly more irregular, with a stronger intensity on the spectrogram, but the spectrograms showed the same pattern at both obstruction sites.ConclusionAlthough further studies are required, the spectrograms and formant frequencies of the snoring sounds of induced sleep did not differ significantly from those of natural sleep, and may be used as a screening test that reflects the characteristics of natural sleep according to the obstruction site.



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