793 research outputs found
A Survey of Male Sexual Functioning in the General Population in the Northern Netherlands
Aim. To describe age-related male sexual functioning in a representative Dutch general population using internationally accepted and validated questionnaires.Material and Methods. A random selection of 1404 men from the general populations in the Netherlands were asked to participate. Men primarily completed the International Index of Erectile Function (IIEF), but also provide medical history, details of daily activities, the Body Image Scale, the SF-36 Health Survey, the Hospital Anxiety and Depression Scale, and the Multidimensional Fatigue Inventory. Participants’ representativeness was assessed by comparison with data from the Dutch Central Agency for Statistics and the Dutch Health Monitor. Main outcome measurements were the age-related domain scores of the IIEF.Results. Responses were obtained from 333 of 1404 men (24%). Participant characteristics were broadly comparable to those of the Dutch population, except for underreporting homosexuals, immigrants, age <40 years and mid-level educations. Overall, 39% of respondents were sexually inactive, and inactivity increased significantly with advancing age. All IIEF domain scores decreased markedly with increasing age, except for overall satisfaction. The prevalence rates of mild and severe erectile dysfunction were 22% and 5%, respectively, and both increased significantly with advancing age.Conclusion. Four of the IIEF domain scores (i.e., erectile function, orgasmic function, sexual desire, and intercourse satisfaction) decrease with increasing age, whereas the overall satisfaction domain scores remain stable throughout life
Home-based Physical Activity to Alleviate Fatigue in Cancer Survivors:A Systematic Review and Meta-analysis
PURPOSE: Physical activity (PA) affects fatigue and mental health in cancer survivors favorably, but participation in PA interventions tends to be low. More participants may be reached by home-based PA due to greater accessibility and self-monitoring. This systematic review therefore evaluated the effects of home-based PA of low to moderate intensity on symptoms of fatigue, depression, and anxiety among cancer survivors.METHODS: PubMed, CINAHL, PsycINFO, and Web of Science were systematically searched for randomized controlled trials. We included investigations of home-based PA interventions in adults treated curatively for cancer and evaluating fatigue, depression, or anxiety as outcomes. We performed a random-effect meta-analysis for the effects of PA interventions on fatigue in the short and long term. Sub-group analyses were performed for the frequency of counseling. Standardized mean differences (SMD) and 95% confidence intervals are reported.RESULTS: Eleven articles comprising 1066 participants were included: 77% had a history of breast cancer, 14% of ovarian cancer, 4% of colorectal cancer, 4% of prostate cancer and 1% of "other" cancer (not specified). Concerning the outcomes, nine articles reported on fatigue and two reported on depression or anxiety. Meta-analyses showed a significant effect of home-based PA on fatigue immediately post-intervention (SMD = 0.22 [0.06-0.37]), at 3 months' follow-up (SMD = 0.27 [0.04-0.51]), and at 6-9 months' follow-up (SMD = 0.31 [0.08-0.55]). PA interventions that used frequent counseling were associated with larger improvements in fatigue than those using no or infrequent counseling.CONCLUSION: Home-based PA interventions can reduce fatigue among adult cancer survivors for up to 9 months, and frequent counseling may improve the benefits of these interventions.</p
L1CAM expression in uterine carcinosarcoma is limited to the epithelial component and may be involved in epithelial–mesenchymal transition
Uterine carcinosarcoma (UCS) has been proposed as a model for epithelial–mesenchymal transition (EMT), a process characterized
by a functional change facilitating migration and metastasis in many types of cancer. L1CAMis an adhesion molecule that
has been involved in EMT as a marker for mesenchymal phenotype.We examined expression of L1CAM in UCS in a cohort of
90 cases from four different centers. Slides were immunohistochemically stained for L1CAMand scored in four categories (0%,
50%). A score of more than 10% was considered positive for L1CAM. The median age at presentation
was 68.6 years, and half of the patients (53.3%) presented with FIGO stage 1 disease. Membranous L1CAM expression was
positive in the epithelial component in 65.4% of cases. Remarkably, expression was negative in the mesenchymal component. In
cases where both components were intermingled, expression limited to the epithelial component was confirmed by a double stain
for L1CAMand keratin. Expression of L1CAMdid not relate to overall or disease-free survival. Our findings suggest L1CAMis
either not a marker for the mesenchymal phenotype in EMT, or UCS is not a good model for EMT
Follow-up for breast cancer - the patients' view
Background: International and national guidelines (S3 guideline) for the surveillance of post-treatment breast cancer patients recommend a clinical follow-up including routine history and physical examination and regular mammograms. The practice of a clinical follow-up has been often discussed, but has been proven not to be inferior when compared to an intensified follow-up in randomized trials. Patients and Methods: The present manuscript reports the patients' view on the basis of a survey including 2000 patients with a history of breast cancer. Results: A total of 452 patients (22.6%) answered the questionnaire. The median age was 62 years (range 23-85 years). More than 80% of the patients were disease-free at the time of the survey. The need for surveillance was affirmed by the majority of patients (>95%), and one third stated that there was a need for more technical efforts during follow-up. In contrast to the follow-up guidelines, the results of the present survey indicated that most of the regularly scheduled follow-up visits were expanded using extensive laboratory and imaging procedures. Conclusion: This survey shows that the majority of physicians obviously do not accept the present follow-up guidelines. A new surveillance study investigating the efficacy of an intensified surveillance based on the improved possibilities of modern diagnostics and endocrine, immunotherapeutic, chemotherapeutic and interventional treatment options is warranted
Discovery of new methylation markers to improve screening for cervical intraepithelial neoplasia grade 2/3
Background: Assessment of DNA promoter methylation markers in cervical scrapings for the detection of cervical intraepithelial neoplasia (CIN) and cervical cancer is feasible, but finding methylation markers with both high sensitivity as well as high specificity remains a challenge. In this study, we aimed to identify new methylation markers for the detection of high-grade CIN (CIN2/3 or worse, CIN2+) by using innovative genome-wide methylation analysis (MethylCap-seq). We focused on diagnostic performance of methylation markers with high sensitivity and high specificity considering any methylation level as positive.
Results: MethylCap-seq of normal cervices and CIN2/3 revealed 176 differentially methylated regions (DMRs) comprising 164 genes. After verification and validation of the 15 best discriminating genes with methylation-specific PCR (MSP), 9 genes showed significant differential methylation in an independent cohort of normal cervices versus CIN2/3 lesions (p < 0.05). For further diagnostic evaluation, these 9 markers were tested with quantitative MSP (QMSP) in cervical scrapings from 2 cohorts: (1) cervical carcinoma versus healthy controls and (2) patients referred from population-based screening with an abnormal Pap smear in whom also HPV status was determined. Methylation levels of 8/9 genes were significantly higher in carcinoma compared to normal scrapings. For all 8 genes, methylation levels increased with the severity of the underlying histological lesion in scrapings from patients referred with an abnormal Pap smear. In addition, the diagnostic performance was investigated, using these 8 new genes and 4 genes (previously identified by our group: C13ORF18, JAM3, EPB41L3, and TERT). In a triage setting (after a positive Pap smear), sensitivity for CIN2+ of the best combination of genes (C13ORF18/JAM3/ANKRD18CP) (74 %) was comparable to hrHPV testing (79 %), while specificity was significantly higher (76 % versus 42 %, p <= 0.05). In addition, in hrHPV-positive scrapings, sensitivity and specificity for CIN2+ of this best-performing combination was comparable to the population referred with abnormal Pap smear.
Conclusions: We identified new CIN2/3-specific methylation markers using genome-wide DNA methylation analysis. The diagnostic performance of our new methylation panel shows higher specificity, which should result in prevention of unnecessary colposcopies for women referred with abnormal cytology. In addition, these newly found markers might be applied as a triage test in hrHPV-positive women from population-based screening. The next step before implementation in primary screening programs will be validation in population-based cohorts
Separate and combined analysis of successive dependent outcomes after breast-conservation surgery: recurrence, metastases, second cancer and death
<p>Abstract</p> <p>Background</p> <p>In the setting of recurrent events, research studies commonly count only the first occurrence of an outcome in a subject. However this approach does not correctly reflect the natural history of the disease. The objective is to jointly identify prognostic factors associated with locoregional recurrences (LRR), contralateral breast cancer, distant metastases (DM), other primary cancer than breast and breast cancer death and to evaluate the correlation between these events.</p> <p>Methods</p> <p>Patients (n = 919) with a primary invasive breast cancer and treated in a cancer center in South-Western France with breast-conserving surgery from 1990 to 1994 and followed up to January 2006 were included. Several types of non-independent events could be observed for the same patient: a LRR, a contralateral breast cancer, DM, other primary cancer than breast and breast cancer death. Data were analyzed separately and together using a random-effects survival model.</p> <p>Results</p> <p>LRR represent the most frequent type of first failure (14.6%). The risk of any event is higher for young women (less than 40 years old) and in the first 10 years of follow-up after the surgery. In the combined analysis histological tumor size, grade, number of positive nodes, progesterone receptor status and treatment combination are prognostic factors of any event. The results show a significant dependence between these events with a successively increasing risk of a new event after the first and second event. The risk of developing a new failure is greatly increased (RR = 4.25; 95%CI: 2.51-7.21) after developing a LRR, but also after developing DM (RR = 3.94; 95%CI: 2.23-6.96) as compared to patients who did not develop a first event.</p> <p>Conclusion</p> <p>We illustrated that the random effects survival model is a more satisfactory method to evaluate the natural history of a disease with multiple type of events.</p
A descriptive study of UK cancer genetics services: an emerging clinical response to the new genetics
The objective was to describe NHS cancer genetic counselling services and compare UK regions. The study design was a cross-sectional study over 4 weeks and attendee survey. The setting was 22 of the 24 regional cancer genetics services in the UK NHS. Participants were individuals aged over 18 attending clinics at these services. Outcome measures were staff levels, referral rates, consultation rates, follow-up plans, waiting time. There were only 11 dedicated cancer geneticists across the 22 centres. Referrals were mainly concerned with breast (63%), bowel (18%) and ovarian (12%) cancers. Only 7% of referrals were for men and 3% were for individuals from ethnic minorities. Referral rates varied from 76 to 410 per million per annum across the regions. Median waiting time for an initial appointment was 19 weeks, ranging across regions from 4 to 53 weeks. Individuals at population-level genetic risk accounted for 27% of consultations (range 0%, 58%). Shortfalls in cancer genetics staff and in the provision of genetic testing and cancer surveillance have resulted in large regional variations in access to care. Initiatives to disseminate referral and management guidelines to cancer units and primary care should be adequately resourced so that clinical genetics teams can focus on the genetic testing and management of high-risk families. © 2001 Cancer Research Campaign http://www.bjcancer.co
CHEK2 1100delC in patients with metachronous cancers of the breast and the colorectum
BACKGROUND: Development of multiple primary tumors is a hallmark of hereditary cancer. At least 1/10 of breast cancers and colorectal cancers occur because of heredity and recently the cell cycle kinase 2, CHEK2 1100delC allele has been identified at a particularly high frequency in families with hereditary breast and colorectal cancer. METHODS: We utilized the Southern Sweden population-based cancer registry to identify women with double primary breast and colorectal cancer and sequenced tumor material in order to assess the contribution of the CHEK2 1100delC to the development of such metachronous tumors. RESULTS: Among the 75 patients successfully analyzed, 2 (2.5%) carried the CHEK2 1100delC allele. which was not significantly different (p = 0.26) from the 1% (3/300) carriers identified in the control group. CONCLUSION: In summary, our data suggest that the CHEK2 1100delC is not a major cause of double primary breast and colorectal cancer in Sweden, which suggests that this patient group should not routinely be screened for the CHEK2 1100delC variant
A Practical Guide to Rodent Islet Isolation and Assessment
Pancreatic islets of Langerhans secrete hormones that are vital to the regulation of blood glucose and are, therefore, a key focus of diabetes research. Purifying viable and functional islets from the pancreas for study is an intricate process. This review highlights the key elements involved with mouse and rat islet isolation, including choices of collagenase, the collagenase digestion process, purification of islets using a density gradient, and islet culture conditions. In addition, this paper reviews commonly used techniques for assessing islet viability and function, including visual assessment, fluorescent markers of cell death, glucose-stimulated insulin secretion, and intracellular calcium measurements. A detailed protocol is also included that describes a common method for rodent islet isolation that our laboratory uses to obtain viable and functional mouse islets for in vitro study of islet function, beta-cell physiology, and in vivo rodent islet transplantation. The purpose of this review is to serve as a resource and foundation for successfully procuring and purifying high-quality islets for research purposes
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