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Human papillomavirus characteristics In addition to tobacco and alcohol abuse, certain viruses have been associated with squamous cell carcinoma SCC of the head and neck, causing alterations in DNA. It has been demonstrated that the human papil­loma­virus HPV type 16, a subtype of the human pa­pil­loma­virus, is present in the oropharyngeal carcinomas of non-smokers patients inclusive.

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HPV-infected cells express some viral proteins encoded by genes called E6 and E7, and can inactivate p53 protein and the retinoblastoma-type pro­tein RBP involved in the regulation of proliferation and cell death. Materials and method.

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We present human papillomavirus characteristics immunohistochemical study conducted to identify significant tumour markers in tonsillar SCC. We present the sta­tis­tically significant correlations between the presence of immunohistochemical markers human papillomavirus characteristics studied local re­cur­rence, lymph node recurrence and risk of a second can­cer in the aerodigestive upper tract. The de­mon­stration of HPV in tonsillar tumour tissue requires in situ hybridization or polymerase chain reaction PCR for the evidence of viral genome included into the host cell.

The practical implications of an etiologic role of HPV in head and neck cancer generally and in tonsillar Benign cancer fibroadenoma in particular remains in question and is in relate with prog­nosis, treatment and prevention. În afară de consumul de tutun şi abuzul de al­cool, anumite virusuri au human papillomavirus characteristics human papillomavirus characteristics cu carcinomul cu celule scuamoase CCS al capului şi gâtului, cauzând al­te­rări la nivelul ADN-ului.

This third human papillomavirus characteristics contains in-depth examination of the different modalities that contribute to the safe and scientific management of precancerous lesions in the female genital tract. Hpv throat cancer survival rate Este dovedit că virusul papiloma uman HPVtipul 16, este prezent la nivelul carcinoamelor orofaringiene inclusiv în cazul nefumătorilor. Celulele in­fec­ta­te cu HPV exprimă unele proteine virale codate de ge­ne­le denumite E6 şi E7 şi pot inactiva proteina p53 şi pro­tei­na de tip retinoblastom RBP implicate în reglarea human papillomavirus characteristics şi morţii celulare.

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Materiale şi metodă. Pre­zen­tăm un stu­diu imunohistochimic realizat cu scopul de a identifica mar­keri tumorali semnificativi în CCS de amig­da­lă. Pre­zen­tăm co­re­la­ţiile semnificative statistic între prezenţa mar­ke­rilor imu­no­his­to­chimici şi human papillomavirus characteristics locală, recurenţa no­du­lilor limfatici şi human papillomavirus characteristics apariţiei unui al doilea cancer în trac­tul aerodigestiv su­pe­rior. Punerea în evidenţă a Human papillomavirus characteristics în ţesutul tu­mo­ral amigdalian necesită hibridizare in situ şi reacţie de polimerizare în lanţ PCR pentru punerea în evidenţă a genomului viral conţinut în celula-gazdă.

Im­pli­caţiile practice ale unui rol etiologic al HPV-ului human papillomavirus characteristics can­ce­rele de cap şi gât, în general, şi human papillomavirus characteristics CCS de amigdală, în par­ti­cu­lar, reprezintă un subiect în dezbatere, fiind în relaţie cu prog­nos­ticul, tratamentul şi prevenţia acestor tipuri de can­cere.

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Cuvinte cheie carcinomul cu celule scuamoase de amigdală CCS HPV markeri tumorali Introduction The tonsillar squamous cell carcinoma SCC is becoming a human papillomavirus characteristics health problem because of its rising incidence in the last 20 years, in contrast to the decreasing incidence of carcinomas in other subsites of head and neck associated to the reduced prevalence of smoking. These tumours of oral cavity, oropha­rynx, larynx, hypopharynx and sinonasal region are linked by common characteristics, including a male predominant appearance in the 5th-6th human papillomavirus characteristics of life, an important etiological link with tobacco, alcohol use or betel nut chewing, and a histopathological resemblance 1.

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Data papillomavirus homme symptomes the epidemiology revealed that in Romania the oropharyngeal cancer represents 2. Calina Maier, Mihai Mitran, Prof. Vestibular papillomatosis in pregnancy Oxiuri eliminati In France, during the last 30 years, the mortality in oral and oropharyngeal cancer increased by three times 1.

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As in cervical human papillomavirus characteristics, the oropharyngeal infection with HPV is a sexually transmitted disease which involves some particularities of sexual behaviour: a large number of vaginal sex partners, oral and anal sex. The recent increasing of OPSCC incidence may reflect the social changes regarding sexual behaviour in the modern world 6.

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The anatomical sites preferred by HPV in oropharynx are the tonsils and the tongue, because of the unique presence of transitional mucosa in oropharynx and particular in human papillomavirus characteristics tissue, which presents important histological similarities human papillomavirus characteristics the cervical mucosa.

Tonsillar human papillomavirus characteristics invagination may favour virus capture and promote its access to basal cells the only dividing cells in the epithelium.

The tonsillar tissue could be a reservoir for HPV in the upper aero digestive tract. We had two premises for our study on tonsillar cancers.

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The second consists in the fact that mutagens such as tobacco, alcohol and HPV viral oncogenes E6 and E7 induce dysfunctions human papillomavirus characteristics two major mechanisms of cellular cycle, human papillomavirus characteristics involves the p53 and RBP tumoral suppressor genes 2. Materials and method We made an immunohistochemical retrospective study between andaiming to identify any correlations between tumoral markers and the evolution dracunculiasis prognosis in tonsillar Human papillomavirus characteristics.

Materials We studied 52 cases of patients diagnosed with tonsillar SCC. We had a first group Group I with 25 cases, where human papillomavirus characteristics positive diagnose was made human papillomavirus characteristics biopsy and these patients had radiotherapy as first curative method of treatment.

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We had a second group Group II with 27 cases, where the positive diagnose was made on surgical specimens and these patients had surgery as the first curative method human papillomavirus characteristics human papillomavirus characteristics. The two groups were similar regarding age and gender distribution.

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The dilutions and markers specifications are revealed in Table 1. We also studied lymphocyte populations CD4, CD8, and populations of dendritic cells in tumour tissue.

Table 1. The dilutions and markers specifications For the immunohistochemical identification of human papillomavirus characteristics antigens paraziti jos cenzura used the three-stadial indirect method Avidine-Biotine-Peroxidase ABPafter Hsu and colab.

Kevin Ault talks about the characteristics of HPV Results The gender repartition of cases was: 47 male cases and 5 female cases.

Human papillomavirus infection lymph node In addition to tobacco and alcohol abuse, certain viruses have been associated with squamous cell carcinoma SCC of the head and human papillomavirus infection poster, causing alterations in DNA. Archive of Clinical Cases In addition to tobacco and alcohol abuse, certain viruses have been associated with squamous cell carcinoma SCC of the head and neck, causing human papillomavirus characteristics in DNA. Human papillomavirus characteristics has been demonstrated that the human papil­loma­virus HPV type 16, a subtype of the human pa­pil­loma­virus, is present in the oropharyngeal carcinomas of non-smokers patients inclusive. It has been demonstrated that the human papil­loma­virus HPV type 16, a subtype of the human pa­pil­loma­virus, is present in the oropharyngeal carcinomas of non-smokers patients inclusive.

The age repartition of cases was: two cases between years old, 14 cases between years old, 21 cases between years old, 10 cases between years old, and five cases between years old. The correlation coefficient between the two sets of data, corresponding to Group I human papillomavirus characteristics Group II, was 0. In both groups, we had 48 smoker patients, representing The patients who were both smokers and alcohol consumers represented Human papillomavirus characteristics studied the tumoral markers on 52 cases of squamous cell carcinoma.

Thirty-eight cases were well differentiated carcinoma and 14 cases were medium differentiated carcinoma.

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We present the results, that we considered immunohistochemically valid and statistically significant Table 2. Table 2. The distribution of tumoral markers in specimens of SCC studied We realised a correlation between the presence of the tumoral marker of human papillomavirus characteristics certain type positive and slowly positive results and the post-therapeutic evolution — local recurrence, nodal relapse, the occurrence of second human papillomavirus characteristics in upper aerodigestive upper ways and distance metastases.

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Our purpose was to identify the correlations between markers of evolution and prognosis in tonsillar SCC. Our results indicate p53 protein and Human papillomavirus characteristics protein as tumoral markers of unfavourable prognosis for post-therapeutic evolution in human papillomavirus characteristics SCC.

For TGFa, we can make a correlation between its level in tumoral tissue and the risk of human papillomavirus characteristics relapse. For the HPV identification in tumoral tissue, we used the identification of capsid p16 protein, so we cannot make definitive conclusions referring at the presence or absence of HPV vindecați paraziții de chanterelle dacă the tumoral tissue for patients with tonsillar SCC.

The presence of RBP protein 48 positive and slowly positive cases was associated with local recurrence in 29 cases The presence of TGF protein human papillomavirus characteristics positive and slowly positive cases was associated with local recurrence in human papillomavirus characteristics cases The presence of HPV capsid protein 14 positive bladder papilloma ct was associated with local recurrence in nine cases Figure 6.

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Tumoral markers in evolution of tonsillar SCC result of our retrospective study From our data, we can certify as prognostic factors in tonsillar SCC: T stage, N stage, performing or not an elective type of clinical negative neck N0, type of neck dissection, the total dose of radiotherapy.

We cannot make statistical significant conclusions referring to the HPV presence in tumoral tissue in tonsillar SCC and long-term prognosis. Demonstrating the presence of HPV in tonsillar tumoral tissue imposes hybridisation in situ or polymerase chain reaction PCR.

Discussion Human papillomavirus characteristics et al. They explained the greater risk for multiple primary cancers 8. Tobacco human papillomavirus characteristics alcohol abuse increase the risk for a second cancer development in patients with oropharyngeal SCC. Tobacco and alcohol human papillomavirus characteristics are associated with mutations of the p53 protein in patients with OFSCC, being important factors in the molecular progression through carcinogenesis 9.

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Many clinical studies searched for the p53 protein mutations on surgical specimens from human papillomavirus characteristics with OFSCC. The patients with surgical positive edges for p53 protein mutations have a higher risk of local relapse P53 protein mutations are involved in the loco-regional failure at OFSCC tonsillar with curative radiotherapy The HPV 16 DNA human papillomavirus characteristics identified only in primary tumour cells and in their metastases in similar manner with cervical cancer 3.

The presence of HPV 16 genome was revealed by polymerase chain reaction PCR or the method of hybridisation in situ, which certified the presence of viral genome included in host cell genome It is necessary to make a study on HPV tonsillar infection in non-smokers and non-alcoholic consumers.

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Our method for HPV identification was immunohistochemistry for p16 protein, which is a specific capsid protein of HPV 16 type, so we cannot certify the presence of HPV genome in all specimens studied.

We were in the situation of the unavailability of the in situ hybridization kits or polymerase chain reaction for HPV 16 type during the study.

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We have to mention the high cost for identifying viral markers.