RESUMEN
INTRODUCTION: Between 16,000 and 48,000 women are estimated to present to UK breast clinics with nipple discharge each year. The incidence of malignancy in these women is 2.7-24.2%. Currently, there is no consensus on the best way to investigate and manage these women. The aim of this study was to assess the rate of malignancy in women presenting with unilateral nipple discharge, and to evaluate the role of examination, imaging and cytology in reliably predicting outcome. METHODS: Breast units were asked to prospectively collect data on all new patients with unilateral nipple discharge. Data collected included discharge colour, whether it was uniductal or multiductal, examination and imaging findings, cytology results and outcome. RESULTS: Complete datasets were submitted by 5 units on 228 patients. The incidence of malignancy was 4.4%. Clinical examination was valuable in detecting malignancy and multiductal discharge was not related to malignancy. The positive predictive value for detecting malignancy for an abnormality found on mammography was 53.5% and for ultrasonography, it was 65.2%. The role of cytology in detecting malignancy was inconclusive with positive predictive values of the presence of red blood cells and epithelial cells at 6.1% and 10.7% respectively. CONCLUSIONS: A large number of women are investigated for nipple discharge (with huge resource implications) but there is little reliable evidence on the best way to investigate and manage these patients. A larger study is needed to evaluate the role of investigations in nipple discharge to produce guidelines on optimal management.
Asunto(s)
Neoplasias de la Mama/epidemiología , Secreción del Pezón/citología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/patología , Conjuntos de Datos como Asunto , Inglaterra/epidemiología , Femenino , Humanos , Incidencia , Mamografía , Persona de Mediana Edad , Secreción del Pezón/diagnóstico por imagen , Pezones/diagnóstico por imagen , Pezones/patología , Valor Predictivo de las Pruebas , Estudios Prospectivos , Ultrasonografía , Adulto JovenRESUMEN
The mitogenic and anti-apoptotic effects of insulin-like growth factor-I (IGF-I) are regulated by a family of insulin-like growth factor binding proteins (IGFBPs), particularly IGFBP-3. Little is known about the IGF-independent role of IGFBP-3 in breast cancer and the mechanisms regulating its production. The expression of IGFBP-3 in paired malignant and adjacent normal (n=53), and healthy normal (n=17) breast tissue samples was investigated using RT-PCR, immunohistochemistry and ELISA. We compared IGFBP-3 expression with other members of the IGF-I axis, other known tumorigenic genes and clinicopathological parameters. We also developed a novel tissue explant system using fresh normal and malignant breast tissue, with which we examined the in vitro effects of IGFBP-3 alone and in combination with known apoptotic agent, doxorubicin (n=6), on tissue viability and apoptosis. We demonstrated a high level of expression of IGFBP-3 mRNA in all samples. 96% of samples also expressed IGFBP-3 protein. No significant correlation was seen between IGFBP-3 expression and other clinicopathological parameters. The in vitro tissue explant system demonstrated that IGFBP-3 had little effect by itself on apoptosis. However, when used in combination with doxorubicin, increased apoptosis was seen in tumours. In contrast, less apoptosis was seen in normal tissue suggesting a protective effect. These divergent effects suggest a potential novel chemotherapeutic approach in the treatment of breast cancer. These findings suggest that IGFBP-3 may play a role in tumorigenesis, and that IGFBP-3 levels could be used in the future in cancer risk assessment/prevention or as markers of response to cancer treatments.
Asunto(s)
Neoplasias de la Mama/metabolismo , Mama/metabolismo , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/fisiología , Biomarcadores de Tumor/biosíntesis , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/fisiología , Mama/citología , Mama/fisiología , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Ciclooxigenasa 2/biosíntesis , Ciclooxigenasa 2/genética , Doxorrubicina/farmacología , Células Epiteliales/metabolismo , Células Epiteliales/fisiología , Femenino , Humanos , Inmunohistoquímica , Proteína 3 de Unión a Factor de Crecimiento Similar a la Insulina , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/biosíntesis , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/genética , Factor I del Crecimiento Similar a la Insulina/biosíntesis , Factor I del Crecimiento Similar a la Insulina/genética , ARN Mensajero/biosíntesis , ARN Mensajero/genética , Células del Estroma/metabolismo , Células del Estroma/fisiología , Técnicas de Cultivo de Tejidos , Factor A de Crecimiento Endotelial Vascular/biosíntesis , Factor A de Crecimiento Endotelial Vascular/genéticaRESUMEN
AIMS: The purpose of this study was to evaluate COX-2 mRNA expression with known clinical prognostic features of breast cancer, oestrogen/progesterone receptor status, tumour size and grade. METHODS: Total RNA was extracted from 45 frozen breast tumour (invasive) and 22 normal breast tissue samples. COX-2 mRNA transcription was quantified using a real time RT-PCR assay and expressed as copy number/microg total RNA. All specimens were assessed for tumour grade, size, nodal status and presence of vascular invasion and oestrogen and progesterone receptor status. RESULTS: COX-2 mRNA was detected in all samples with a median copy number of 1.15 x 10(7) for tumours and 6.5 x 10(6) for normal samples. Expression was significantly higher in oestrogen receptor negative tumours compared to the receptor positive group. There was no correlation between COX-2 mRNA levels and tumour size, grade, nodal status and presence of vascular invasion. CONCLUSIONS: COX-2 mRNA expression is increased in oestrogen and progesterone receptor negative breast cancers.
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Neoplasias de la Mama/metabolismo , Ciclooxigenasa 2/metabolismo , Proteínas de la Membrana/metabolismo , ARN Mensajero/metabolismo , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Mama/metabolismo , Neoplasias de la Mama/irrigación sanguínea , Neoplasias de la Mama/patología , Ciclooxigenasa 2/genética , Femenino , Humanos , Metástasis Linfática , Proteínas de la Membrana/genéticaRESUMEN
The aim of this study was to retrospectively examine whether the occurrence of squamous cell carcinoma (SCC) antigen tumour marker in the serum has prognostic significance in operable SCC of the cervix at the International Federation of Gynaecology and Obstetrics (FIGO) stages IA2-IIB. A total of 129 patients who had undergone a radical hysterectomy for SCC of the uterine cervix at the Department of Gynecology of the Martin-Luther University, Halle-Wittenberg in 1991-2000 were included. SCC antigen (Ag) was measured by IMx SCC-Ag microparticle enzyme immunoassay (Abbott Laboratories, Abbott Park, IL, USA). To assess the prognostic value of SCC antigen in the serum, we used a step-by-step multivariate analysis based on the Cox proportional hazard regression model. Using a cut-off value of 3.0 ng/ml, we detected preoperative SCC antigen in the serum as an independent prognostic factor in SCC of the cervix, both for recurrence-free and overall survival (P=0.003 and 0.0078). In this retrospective analysis the value of the SCC antigen tumour marker correlates with prognosis in operable SCC of the cervix, independent of tumour size, pelvic nodal status, cervical stroma infiltration, parametrial spread and tumour grading.
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Antígenos de Neoplasias/sangre , Biomarcadores de Tumor/sangre , Carcinoma de Células Escamosas/sangre , Serpinas , Neoplasias del Cuello Uterino/sangre , Adulto , Anciano , Carcinoma de Células Escamosas/cirugía , Femenino , Humanos , Histerectomía/métodos , Persona de Mediana Edad , Análisis Multivariante , Pronóstico , Estudios Retrospectivos , Análisis de Supervivencia , Neoplasias del Cuello Uterino/cirugíaRESUMEN
OBJECTIVE: To assess the prevalence of psychiatric disorders and help-seeking behaviour of Afghan refugees with a residence status in the province of Drenthe, the Netherlands. DESIGN: Cross-sectional prevalence study. METHOD: By means of a modified multiflex snowball sampling with 3 primary informants, 55 Afghan households in 16 towns and villages in Drenthe were selected. After informed consent had been obtained, 51 adults completed a sociodemographic questionnaire and a culturally validated shortened 'Composite international diagnostic interview' (CIDI), DSM-IV version. Help-seeking behaviour was recorded. RESULTS: Half of the sample had resided in the Netherlands for at least 3 years. There was a high level of education, an unemployment level of 88% and moderate to poor language skills in 92% of the respondents. The prevalence of psychiatric disorders was 65% (95% CI: 52-78); depressive disorder occurred in 57% and posttraumatic stress disorder in 35%. Psychopathological findings were related to poor language skills, a lower level of education and unemployment. A total of 56% received treatment from a general practitioner and 4% were under psychiatric treatment. CONCLUSIONS: The prevalence of psychiatric disorders among adult Afghan refugees in Drenthe with a residence status was considerably higher than among the general population in the Netherlands.
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Depresión/etnología , Trastornos Mentales/etnología , Trastornos por Estrés Postraumático/etnología , Adulto , Afganistán/etnología , Estudios Transversales , Depresión/epidemiología , Femenino , Humanos , Lenguaje , Masculino , Trastornos Mentales/epidemiología , Países Bajos/epidemiología , Prevalencia , Factores Socioeconómicos , Trastornos por Estrés Postraumático/epidemiología , Estrés Psicológico/epidemiología , Estrés Psicológico/etnologíaRESUMEN
Fibroblasts act as the effector cells of the fibrotic response via production of collagen. In an attempt to understand the regulation of fibroblasts from areas of active human tissue fibrosis, we have developed an ex vivo model in which biopsies of scars from patients 6 weeks post thoracotomy were cultured. This model has been used to investigate whether interleukin-10 (IL-10) and triamcinolone acetonide modulate the expression of type I procollagen mRNA and protein. In situ hybridization and a quantitative competitive RT-PCR were used to measure type I procollagen mRNA. Type I procollagen protein was evaluated by immunochemistry. Viability of biopsies in culture using 3H-uridine incorporation into RNA was observed to be > 80% for at least 96 hours. Following addition of either IL-10 or triamcinolone acetonide there was a modest but significant decrease (P < 0.05) in type I procollagen mRNA expression. Similarly, each agent added individually to biopsies reduced the proportion of cells staining positively for type I procollagen when compared to biopsies treated with medium alone (P < 0.05). These results extend in vitro data that IL-10 and corticosteroids down-regulate collagen synthesis in skin fibroblast cell lines and suggest that this ex vivo model may offer a closer approximation to the post-operative scarring process when testing new therapeutic agents for reducing an over-exuberent fibrotic response.
Asunto(s)
Antiinflamatorios/farmacología , Cicatriz/metabolismo , Interleucina-10/farmacología , Procolágeno/efectos de los fármacos , Triamcinolona Acetonida/farmacología , Administración Tópica , Técnicas de Cultivo de Célula , Cicatriz/patología , Glucocorticoides , Humanos , Técnicas para Inmunoenzimas , Reacción en Cadena de la Polimerasa , Procolágeno/genética , Procolágeno/metabolismo , ARN Mensajero/genéticaRESUMEN
From 2,580 submariners, divers, and frogmen, 13,618 individual findings were evaluated from a total of about 50,000 dental findings of the Nautical Medical Institute of the German Navy, Kiel, West Germany. Trend analysis and statistical significance tests showed that the teeth of navy divers and frogmen had deteriorated very much more within a period of 9 years after their first dental examination than those of submariners. This negative tendency was verified through additional direct comparison between 37 navy divers and 37 submariners whose dental states were observed during a period of 10 years. Here as well, navy divers had significantly worse teeth. The cause of this distinctive dental deterioration among navy divers is probably due to the additional barometric stress they were subjected to for many years during their diving career. Delayed damages as a result of barotrauma may be assumed, a logical suspicion which should be verified by further scientific research.