Male albino (Sprague Dawley) and pigmented (Norwegian Brown) rats received 1% 2,5-hexanediol (H) in their drinking water for 5 or 8 weeks, respectively. The rats were housed either in 12 h light (average 30 cd/cm2 inside cage) and 12 h darkness (group LH) or in total darkness (group DH). Two control groups (Light only, LC; Darkness only, DC) were studied in parallel under identical conditions. The animals were sacrificed at the end of H exposure or after an ensuing 13-week period without H but under the same lighting conditions. The retinas of albino rats in the LH group showed a reduction (compared to the LC, DH and DC groups) in the number of nuclei per unit area of the outer nuclear layer (ONL; p < 0.05) and degeneration of the outer segment and the inner segment layers (photoreceptor cells). A less pronounced loss of nuclei was seen in the LC group. No decrease in the number of nuclei, or signs of degeneration, were demonstrated in the albino DH or DC groups. Thirteen weeks after exposure to H, the albino LH rats had lost about 50% of the nuclei in the ONL (p < 0.05) and the outer plexiform layer (OPL) had almost disappeared. At the corresponding time, in the pigmented rats the LH and DH groups differed from the LC and DC groups. The degenerative process resulted in no inflammatory changes in the retina. The results imply an interaction exceeding simple summation after exposure to light and H, in destroying photoreceptors and OPL (p < 0.001) in albino rats.(ABSTRACT TRUNCATED AT 250 WORDS)
Background: Approximately 12% of women living in the United States will be diagnosed with breast cancer during their lifetimes. Although breast cancer survival rates are improving, there remain significant impacts upon women's length and quality of life. This includes women already diagnosed with the disease, as well as those who are at increased risk owing to hereditary breast cancer-causing mutations (e.g., BRCA1/2 genes). While all women face formidable challenges posed by the threat of living with or being at increased risk for breast cancer, those of Ashkenazi and Central or Eastern European Jewish descent face additional challenges owing to higher BRCA1/2 mutation prevalence in this population. Amidst calls for population-based screening for hereditary breast cancer risk, much can be learned from the experiences of young Jewish women at risk for and surviving with breast cancer about their information and psychosocial needs. Methods: The present study is a secondary analysis of survey data from 2010 to 2014 originally collected by Sharsheret, a non-profit organization dedicated to serving women of all Jewish backgrounds facing or at risk for breast cancer. The evaluation included measures and metrics of community referral practices, social service/program engagement and satisfaction, and resource needs among the target population (N=555). Only survey items administered across all data collection years were analyzed. Results: Respondents had a M age of 50 years and ∼90% identified as Jewish. Over 1/3 were referred to the organization by family or friends, most often after a breast cancer diagnosis. Within the surveyed population, 25% reported being at risk or confirmed carriers of a BRCA1/2 mutation. Of the education and support programs offered, the greatest level of engagement occurred in the 1-on-1 peer emotional support and health care symposia education programs. Women reported very high levels of satisfaction with the programs and services available, sought additional information and social support services, and noted a strong desire to give back to the community by participating as a peer supporter. Importantly for this high-risk population, women who participated in the organization's breast cancer genetics program were >98% satisfied (on average) with the various evaluated components of the program. Women identified genetic risk information as one of their top needs for future engagement. Conclusion: These data affirm success of the organization's programs, especially in educating Jewish women about breast cancer genetics. Genetic information is increasingly salient among members of the Jewish community, extending to their cultural needs and need for peer support. Women likely responded well to Sharsheret's peer support program as it connects women to those with similar backgrounds, including culture, lifestyle, and medical similarities. Implications of these findings assert that culturally-relevant information and psychosocial services for young Jewish women living with or at risk for breast cancer can be enhanced for larger dissemination to meet the expected growing demand in this high risk community. Citation Format: Silber E, Fleischmann AK, Shoretz R, Johnson AC, Murphy SE, Mays D, O'Neill SC, Tercyak KP. Meeting the information and psychosocial needs of young Jewish women at increased risk for or diagnosed with breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-10-14.
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