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101.
Tercyak KP Demarco TA Mars BD Peshkin BN 《American journal of medical genetics. Part A》2004,131(1):36-41
Women who participate in BRCA1/2 cancer genetic counseling do so for a variety of reasons, including learning quantitative risk information about their chances of developing hereditary breast-ovarian cancer at some point during their lifetimes. For these women, obtaining pre-test and disclosure genetic counseling with a professional affords them numerous potential benefits, including adequate preparation for, and accurate interpretation of, their test results. In consequence, women commonly report being highly satisfied with their cancer genetic counseling experience, even if the information learned through testing suggests they are at increased cancer risk. This occurrence raises an interesting question, namely, what are the psychological aspects of satisfaction with genetic counseling for hereditary breast-ovarian cancer in women? To answer this question, we administered the Genetic Counseling Satisfaction Scale (GCSS) to a convenience sample of 61 women participating in BRCA1/2 pretest genetic counseling, and re-administered the GCSS to approximately one-third of these women at disclosure. Available psychological data included personality, distress, and family functioning. In bivariate analyses, optimism and family functioning were positively associated with pretest satisfaction. With respect to satisfaction at disclosure, general and cancer-specific distress were negatively associated with satisfaction. Our findings suggest that psychological aspects of satisfaction with cancer genetic counseling vary, with individual differences and family functioning playing a role at pretest, and distress playing a role at disclosure. The implications for future research and clinical practice are discussed. 相似文献
102.
Correlates of protection induced by live Aro- Salmonella typhimurium vaccines in the murine typhoid model.
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J A Harrison B Villarreal-Ramos P Mastroeni R Demarco de Hormaeche C E Hormaeche 《Immunology》1997,90(4):618-625
Live attenuated salmonella vaccines generally confer better protection than killed vaccines. The immune responses in BALB/c mice elicited by immunization with a live attenuated Aro Salmonella typhimurium vaccine given orally, intravenously or subcutaneously were compared with those elicited by killed whole-cell vaccines (acetone or heat-treated) given subcutaneously. Live vaccines given by all routes elicited higher interleukin-2 (IL-2) and interferon-gamma (IFN-gamma) responses in spleen cells against an alkali-treated whole-cell salmonella lysate than did killed vaccines. Live and killed vaccines elicited high total antibody levels to smooth lipopolysaccharide (LPS) (enzyme-linked immunosorbent assay), but all live vaccine regimes elicited higher IgG2a, suggesting a Th1 response. Oral and intravenous vaccination with live organisms elicited IgA against smooth LPS which subcutaneous vaccination with live or killed salmonellae failed to evoke. Western blots using rough whole-cell lysates showed that all vaccines elicited a varied anti-protein response; however, all groups immunized with live organisms recognized three unidentified bands of MW 52,000, 46,000 and 18,000 which were consistently absent in groups immunized with killed organisms. The results indicate that immunization with live aroA salmonellae elicited a Th1 type of response, including bystander T-cell help to LPS, and a response to proteins not seen in mice that received killed vaccines. 相似文献
103.
Deficient Lymphoid Cell-Mediated, PHA-Induced Cytotoxicity in Rheumatoid Arthritis Patients 总被引:1,自引:0,他引:1
Lymphoid cells from patients with rheumatoid arthritis were compared with those from healthy blood donors and from nonrheumatoid arthritis patients for the ability to manifest in vitro cytotoxicity against target cells in the presence of phytohemagglutinin (PHA) or anti-target cell antibodies. The PHA-induced cytotoxicity in the rheumatoid patient group was significantly lower than that of the blood donors (P < 0.01) and of the nonrheumatoid patients (P < 0.05). The rheumatoid arthritis patients appeared to fall into two groups, one with normal and one with distinctly subnormal PHA-induced cytotoxicity. No obvious differences were observed between these two groups with regard to duration or activity of the disease, treatment, autoantibodies, or the proportion in peripheral blood of T lymphocytes (E–RFC) or Fc-receptor-bearing lymphocytes (EA-RFC). There were no significant differences between the groups with regard to antibody-dependent cytotoxicity. 相似文献
104.
Predictors of participation in psychosocial telephone counseling following genetic testing for BRCA1 and BRCA2 mutations. 总被引:3,自引:0,他引:3
Chanita Hughes Halbert Lari Wenzel Caryn Lerman Beth N Peshkin Steven Narod Alfred Marcus Camille Corio Tiffani Demarco Scarlett Bellamy 《Cancer epidemiology, biomarkers & prevention》2004,13(5):875-881
Although adjunctive educational and psychosocial programs are now being developed for BRCA1 and BRCA2 (BRCA1/2) mutation carriers, limited information is available about whether mutation carriers will want to receive such programs or about the characteristics of individuals who participate. The goals of the present study were to describe rates of completing a psychosocial telephone counseling (PTC) intervention that was offered to female BRCA1/2 mutation carriers and to identify sociodemographic and psychological factors associated with decisions to complete the intervention. Subjects were 66 BRCA1/2 mutation carriers who were randomized to receive a PTC intervention following receipt of genetic test results. Sociodemographic and psychological factors were evaluated before notification of assignment to the PTC intervention. Completion of the intervention was determined from study records. Overall, 75.8% of subjects completed the PTC intervention. Compared to unaffected subjects, those affected with breast and/or ovarian cancer were 76% less likely to complete the intervention [odds ratio (OR) = 0.24, 95% confidence interval (CI) = 0.06, 0.98, P = 0.05]. In addition, subjects with higher levels of cancer-specific distress [OR = 4.74, 95% CI = 1.02, 22.03, P = 0.05] and those with greater perceptions of social support [OR = 5.81, 95% CI = 1.29, 26.16, P = 0.02] were also most likely to complete the intervention. The results of this study suggest that while most BRCA1/2 mutation carriers are likely to complete an adjunctive psycho-educational program, personal history of cancer, cancer-specific distress, and perceptions of social support are likely to influence participation. 相似文献
105.
Maisa Pinheiro Julia C. Gage Gary M. Clifford Maria Demarco Li C. Cheung Zigui Chen Meredith Yeager Michael Cullen Joseph F. Boland Xiaojian Chen Tina Raine-Bennett Mia Steinberg Sara Bass Brian Befano Yanzi Xiao Vanessa Tenet Joan Walker Rosemary Zuna Nancy E. Poitras Michael A. Gold Terence Dunn Kai Yu Bin Zhu Laurie Burdett Sevilay Turan Thomas Lorey Philip E. Castle Nicolas Wentzensen Robert D. Burk Mark Schiffman Lisa Mirabello 《International journal of cancer. Journal international du cancer》2020,147(10):2677-2686
HPV35 has been found in only ∼2% of invasive cervical cancers (ICC) worldwide but up to 10% in Sub-Saharan Africa, warranting further investigation and consideration of impact on preventive strategies. We studied HPV35 and ethnicity, in relation to the known steps in cervical carcinogenesis, using multiple large epidemiologic studies in the U.S. and internationally. Combining five U.S. studies, we measured HPV35 positivity and, in Northern California, observed HPV35 type-specific population prevalence and estimated 5-year risk of developing precancer when HPV35-positive. HPV35 genetic variation was examined for differences in carcinogenicity in 1053 HPV35+ cervical specimens from a U.S. cohort and an international collection. African-American women had more HPV35 (12.1% vs 5.1%, P < .001) and more HPV35-associated precancers (7.4% vs 2.1%, P < .001) compared to other ethnicities. Precancer risks after HPV35 infection did not vary by ethnicity (global P = .52). The HPV35 A2 sublineage showed an increased association with precancer/cancer in African-Americans (OR = 5.6 vs A1, 95% CI = 1.3-24.8) and A2 was more prevalent among ICC in Africa than other world regions (41.9% vs 10.4%, P < .01). Our analyses support a strong link between HPV35 and cervical carcinogenesis in women of African ancestry. Current HPV vaccines cover the majority of cervical precancer/cancer across all ethnic groups; additional analyses are required to determine whether the addition of HPV35 to the already highly effective nine-valent HPV vaccine would provide better protection for women in Africa or of African ancestry. 相似文献
106.
Anne Hammer Maria Demarco Nicole Campos Brian Befano Patti E. Gravitt Li Cheung Thomas S. Lorey Nancy Poitras Walter Kinney Nicolas Wentzensen Philip E. Castle Mark Schiffman 《International journal of cancer. Journal international du cancer》2020,147(6):1612-1620
Many countries are transitioning to HPV testing for cervical cancer screening, despite a lack of long-term experience. To anticipate multi-round screening performance, we analyzed 15-year HPV testing results at Kaiser Permanente Northern California (KPNC). We evaluated HPV test result patterns among women aged 30–64 undergoing triennial HPV/cytology cotesting at KPNC during 2003–2018. We calculated incidence rates and proportion of CIN3+ diagnoses associated with the most frequent HPV testing patterns overall and stratified by age. From 2003 to 2018, a total of 1,361,581 women had a valid HPV test result, and 7,087 were diagnosed with CIN3+. Incidence rates of CIN3+ after HPV positivity were lowest when HPV detection was new and highest in women with prevalent infections (770 vs. 13,910/100,000 person-years). Repeat test negativity reduced subsequent incidence rates of CIN3+ to extremely low levels (18/100,000 person-years following four consecutive negative results). For mixed patterns of positivity/negativity, the recency and frequency of positive tests were associated with increased rates of CIN3+ diagnosis. Most CIN3+ cases (76%) were diagnosed in women who were positive at baseline (the first known positive HPV result); 16% were attributed to apparent newly detected infections and 3% to possible reappearing infections. These results corroborate previous findings that current HPV positivity, particularly when prevalent rather than new, is associated with the highest rates of CIN3+. In a screening program implementing HPV testing, most CIN3+ is detected at the first HPV positive test. 相似文献
107.
Endoscopic revision of external dacryocystorhinostomy. 总被引:1,自引:0,他引:1
Ricardo Demarco Alex Strose Marcos Araújo Fabiana Cardoso Pereira Valera Iracema Moribe Wilma Terezinha Anselmo-Lima 《Otolaryngology--head and neck surgery》2007,137(3):497-499
OBJECTIVES: To observe the benefit of endoscopic surgery for the treatment of lacrimal duct obstruction in revisional surgeries after external dacryocystorhinostomy. STUDY DESIGN AND SETTING: Retrospective nonrandomized study. Eleven cases of recurrent lacrimal duct obstruction after external dacryocystorhinostomy were submitted to endoscopic dacryocystorhinostomy. RESULTS: The rate of success after revisional surgery was 90.9%. The major causes of failure of the external approach were the presence of granulation tissue, septal deviations and synechiae near the opening of the fistula, inadequate removal of the bony wall adjuvant the lacrimal sac, technical error in the localization of the lacrimal sac, and excessive perioperative bleeding that impaired the surgical field. CONCLUSION: Endoscopic dacryocystorhinostomy in revisional cases proved to be a safe technique of low morbidity, permitting effective resolution of the lacrimal obstructions. SIGNIFICANCE: Endoscopic surgery allows greater visibility of the lacrimal sac and its neighbor anatomic alterations and leads to better results. 相似文献
108.
Definition of a virulence-related antigen of Neisseria gonorrhoeae with monoclonal antibodies and lectins 总被引:3,自引:0,他引:3
R Demarco de Hormaeche C Bundell H Chong D W Taylor P Wildy 《The Journal of infectious diseases》1986,153(3):535-546
Variants of one strain of Neisseria gonorrhoeae, grown in vivo or in vitro, that have been previously shown to differ in infectivity, serum resistance, and capsule production were compared with use of monoclonal antibodies and lectins. Monoclonal antibodies to virulent gonococci recognized an antigenic site of the lipopolysaccharide (LPS) produced in large amounts by gonococci grown in vivo but present only in a small proportion of in vitro-grown gonococci. This antigen (C-LPS) was found in all 85 different gonococcal isolates studied but not among nonpathogenic neisseriae. It was shared by group B and C meningococci but not by groups A and D. Enzyme-linked immunosorbent assay and Western blot analysis showed that N-acetylglucosamine and N-acetylgalactosamine form part of the epitope. The C-LPS antigen was shown by immunofluorescence to be present on the surface of the gonococci and also free as slime. This antigen appears to confer resistance to killing by normal sera. 相似文献
109.
Infuso A Hamers F Downs AM Alix J 《Euro surveillance : bulletin européen sur les maladies transmissibles = European communicable disease bulletin》2000,5(2):13-17
AIDS case reporting has been an essential tool for monitoring HIV infection in western Europe. Recent trends in AIDS have been affected by improved antiretroviral treatments that delay HIV disease progression, however, and no longer serve as indicators of 相似文献
110.
The purpose of this study was to evaluate the root-end sealing ability through dye leakage evaluation and the marginal adaptation through scanning electron microscopy (SEM) of some root-end filling materials. Thirty human uniradicular teeth were used. Teeth were divided into three groups: (1) retrofilled with MTA-Angelus, (2) with SuperEBA, and (3) with Vitremer. The root surfaces were isolated with nail polish and teeth were immersed in silver nitrate. Roots were sectioned transversally at each millimeter, in three sections and evaluated at a stereomicroscope to observe dye penetration. Using SEM the distance between the tested root-end filling materials and the surrounding dentin was measured at four points. The statistical analysis showed significant differences among the three materials in relation to the sealing ability (p < 0.05). Concerning marginal adaptation, MTA-Angelus presented the best results (p < 0.01). Absence of correlation between the two methodologies was clearly observed. 相似文献