Medical Advocacy among Latina Women Diagnosed with Breast Cancer.

Medical advocacy has continued to significantly impact quality of life and survivorship outcomes among Latina breast cancer survivors in the United States. However, little is known about the unique experiences of Latina survivors, including the perceived value, process, and context in which they practice medical advocacy. To help address this gap, we conducted a qualitative, secondary analysis of semi-structured focus groups with 18 Latina breast cancer survivors from Chicago, Illinois. Eligible women had to self-identify as (1) female, (2) Latina, (3) 18 years or older, and (4) having a breast cancer diagnosis 5 years ago or more. In total, 61% of participants were 50-59 years old, 83% were born in Mexico, and 100% spoke Spanish. The three emergent themes from the focus groups were (1) the cultural need for Latina advocates and support groups; (2) the process and experiences of becoming a community advocate within Latine culture; and (3) the cultural contexts for advocacy by Latina breast cancer survivors. Latina survivor advocates share strengths of receiving ongoing health education, peer support, and access to resources when being linked to a support group furthering their exposure to role models, increasing their awareness of opportunities in medical advocacy, and providing an entry to participate in medical advocacy.

Intentional Storytelling to Sustain Low-cost/Free Breast Cancer Services: A Latina Example of Community-driven Advocacy.

BACKGROUND: Community-based public health advocacy efforts are crucial to sustaining the low-cost/free breast cancer services that support underserved populations. OBJECTIVES: We introduce two ways in which narrative theory may be a useful tool for developing advocacy materials and provide an example, using a community-academic partnership to promote Latina breast health in Chicago, Illinois. METHODS: Community and academic partners 1) engaged 25 Spanish-speaking Latinas in an advocacy workshop, 2) leveraged narrative theory to develop multi-media advocacy materials, and 3) disseminated materials to policymakers. LESSONS LEARNED: Our project highlights 1) that narrative theory may be useful to describe how Latinas engage policy-makers in relation to their needs and cultural norms, 2) the importance of flexibility and offering community members multiple options to engage policymakers, and 3) the importance of leveraging partners' complementary strengths. CONCLUSIONS: Narrative theory may be a useful tool for developing advocacy materials in community-academic partnerships.

Comparing Different Interventions' Effects on Latinas' Screening Mammography Attainment and Participant-Driven Information Diffusion.

Evaluation of multiple community-based approaches to improve Latinas' breast cancer (BC) screening utilization has resulted in inconsistent findings. Factors contributing to this variation include heterogeneity in approaches (e.g., types of conceptual frameworks) and study quality (e.g., lack of measurement of spillover effects). This pilot study sought to clarify which approach may be most effective by evaluating the relative efficacy of two conceptual approaches using an area-level design with 145 Latinas nonadherent to U.S. Preventive Services Taskforce (USPSTF) BC screening guidelines. Each study arm included identical intervention format and duration (e.g., three group-based sessions, logistic assistance (LA) via five monthly calls and referral to free/low-cost screening programs). However, study content differed. While educate+LA addressed participants' BC prevention and screening behavior, empower+LA addressed participants' and their social networks' BC screening. After adjusting for age, insurance status, and baseline mammography intention, when compared with educate+LA participants, empower+LA participants were more likely to report obtaining mammograms, engaging more individuals about BC, initiating BC conversations in public settings, and discussing mammography specifically. Our study has important implications regarding the utility of evaluating behavioral interventions overall in terms of behavioral and spillover network effects.

Integrating multiple community perspectives in intervention development.

We offer a framework and exemplify how to integrate multiple community perspectives in research to develop breast cancer screening interventions among Latinas non-adherent to national guidelines. We leverage members of an academic institution's community consultative service [community engagement advisory board (CEAB) members]; study team members [community health workers (CHWs)] and study-eligible individuals (non-adherent Latinas). First, we asked what was needed from CEAB members (N=17), CHWs (N=14) and non-adherent Latinas (N=20) in one-time semi-structured group consultations and focus groups. Second, we drafted materials. Third, we conducted group consultations and focus groups with a new set of CEAB members (N=13), CHWs (N=17) and non-adherent Latinas (N=16) to reflect on our initial analysis and draft materials. Fourth, we finalized interventions. Certain recommendations were shared across stakeholders and simple to integrate (e.g. costs → access to free services). Some recommendations varied, but complementary integration was possible (e.g. location versus recruitment → multiple recruitment in multiple community areas). Others were distinct across stakeholders and resulted in strategies to recognize participants' agency and inform their choices about breast cancer screening (e.g. differences in preferred information about screening → personalized information and evidence about all screening options).

The "Empowering Latinas to Obtain Breast Cancer Screenings" study: Rationale and design.

BACKGROUND: Latinas suffer disproportionately from breast cancer (BC) in part due to lower guideline-concordant screening. Multiple intervention approaches have been developed to promote screening through direct patient education and empowerment approaches (i.e., training community members to share BC information). This study compares the relative effects of these approaches on: 1) women's BC screening; and, 2) women's dissemination of BC information within their social networks. DESIGN/METHODS: Our quasi-experimental trial is being implemented in community venues in two predominantly Latino neighborhoods in South and West Chicago. Eligible participants: 1) are female; 2) are 52-74 years old; 3) have not obtained a mammogram in the past 2 years; and, 4) have not previously participated in health-related volunteerism. Based on their geographic location, participants are assigned to one of two group-based interventions. Both interventions consist of three two-hour sessions, which includes BC early detection education. The education intervention sessions also covers BC prevention (diet, physical activity), whereas the empowerment intervention covers sharing information with family/friends, and health volunteerism. Navigation is provided for all women who wish to obtain mammograms. Primary outcomes include: 1) receipt of BC screening; and, 2) participants' dissemination of BC information. Secondary outcomes include positive changes in 1) participants' self-reported psychosocial facilitators; and, 2) social network members' BC behaviors. DISCUSSION: The design of our program allows for a preliminary comparison of the effectiveness of these two approaches. This work will inform larger comparativeness trials and offers a new approach to intervention evaluation via social network analysis.

Isolation of Antibacterial Hydrolysates from Hen Egg White Lysozyme and Identification of Antibacterial Peptides.

Native and heated hen egg white lysozyme (HEWL) hydrolysates were isolated by hydrolysis with pepsin at pH 2.0 in situ in a cation exchange membrane to isolate and identify antibacterial peptides of the HEWL hydrolysates. Native and heated HEWL was partially hydrolyzed with pepsin at pH 2.0. The fractions were eluted with 5 M ammonia to identify 23 antibacterial peptides using a tandem mass spectrometry. Then, these fractions were eluted with a solution of NaCl 1 M, and seven positively charged peptides f(23-28) YSLGNW, f(122-129) AWIRGCRL, f(123-129) WIRGCRL, f(124-129) IRGCRL, f(82-96) ALLSSDITASVNCAK, f(103-129) VAWRNRCKGTDVQAWIRGCRL, and f(97-123) KIVSDGNGMNAWVAWRNRCKGT were identified using tandem mass spectrometry. Native HEWL hydrolysate presented an enzymatic activity of 23.0%, heated HEWL hydrolysate at pH 6.0 presented a residual enzymatic activity of 22.0%, and heated HEWL hydrolysate at pH 7.0 presented an enzymatic activity of 21.33%. Native and heated HEWL hydrolysate presented antibacterial activity against Escherichia coli and Staphylococcus carnosus. Native HEWL hydrolysate presented a higher enzymatic activity than heated HEWL hydrolysates.