10 research outputs found

    Perceptions of Adolescent Pregnancy Among Teenage Girls in Rakai, Uganda.

    Get PDF
    The leading causes of death and disability among Ugandan female adolescents aged 15 to 19 years are pregnancy complications, unsafe abortions, and childbirth. Despite these statistics, our understanding of how girls perceive adolescent pregnancy is limited. This qualitative study explored the social and contextual factors shaping the perceptions of adolescent pregnancy and childbirth among a sample of 12 currently pregnant and 14 never pregnant girls living in the rural Rakai District of Uganda. Interviews were conducted to elicit perceived risk factors for pregnancy, associated community attitudes, and personal opinions on adolescent pregnancy. Findings indicate that notions of adolescent pregnancy are primarily influenced by perceptions of control over getting pregnant and readiness for childbearing. Premarital pregnancy was perceived as negative whereas postmarital pregnancy was regarded as positive. Greater understanding of the individual and contextual factors influencing perceptions can aid in development of salient, culturally appropriate policies and programs to mitigate unintended adolescent pregnancies

    The Impact of the Human DNA Topoisomerase II C-Terminal Domain on Activity

    Get PDF
    Type II DNA topoisomerases (topos) are essential enzymes needed for the resolution of topological problems that occur during DNA metabolic processes. Topos carry out an ATP-dependent strand passage reaction whereby one double helix is passed through a transient break in another. Humans have two topoII isoforms, alpha and beta, which while enzymatically similar are differentially expressed and regulated, and are thought to have different cellular roles. The C-terminal domain (CTD) of the enzyme has the most diversity, and has been implicated in regulation. We sought to investigate the impact of the CTD domain on activity.We have investigated the role of the human topoII C-terminal domain by creating constructs encoding C-terminally truncated recombinant topoIIalpha and beta and topoIIalpha+beta-tail and topoIIbeta+alpha-tail chimeric proteins. We then investigated function in vivo in a yeast system, and in vitro in activity assays. We find that the C-terminal domain of human topoII isoforms is needed for in vivo function of the enzyme, but not needed for cleavage activity. C-terminally truncated enzymes had similar strand passage activity to full length enzymes, but the presence of the opposite C-terminal domain had a large effect, with the topoIIalpha-CTD increasing activity, and the topoIIbeta-CTD decreasing activity.In vivo complementation data show that the topoIIalpha C-terminal domain is needed for growth, but the topoIIbeta isoform is able to support low levels of growth without a C-terminal domain. This may indicate that topoIIbeta has an additional localisation signal. In vitro data suggest that, while the lack of any C-terminal domain has little effect on activity, the presence of either the topoIIalpha or beta C-terminal domain can affect strand passage activity. Data indicates that the topoIIbeta-CTD may be a negative regulator. This is the first report of in vitro data with chimeric human topoIIs

    Beyond the statistic: exploring the process of early marriage decision-making using qualitative findings from Ethiopia and India

    No full text
    Abstract Background Early marriage of girls (marriage < 18 years) is a pervasive abuse of rights that compromises maternal and child health. The common conceptualization of this practice as an outcome undermines the nuanced and sometimes protracted decision-making process of whom and when to marry. Methods This paper uses qualitative data from semi-structured interviews with females aged 13–23 years who participated in child marriage prevention programs and either married early or cancelled/postponed early marriage, and their key marital decision-makers in Oromia, Ethiopia (n = 105) and Jharkhand, India (n = 100). Results Social norms and the loss of a parent were stressors sustaining early marriage across contexts. Participants described three stages of early marriage: initiation, negotiation and final decision-making. Girls were infrequently involved in the initiation of early marriage proposals, though their decision-making autonomy was greater in groom-initiated proposals. The negotiation phase was most open to extra-familial influences such as early marriage prevention program staff and teachers. Across settings, fathers were the most important final decision-makers. Conclusions The breadth and number of individual and social influences involved in marital decision-making in these settings means that effective early marriage prevention efforts must involve girls, families and communities. While underlying norms need to be addressed, programs should also engage and enable the choice, voice and agency of girls. Empowerment was important in this sample, but generally required additional social resources and support to have impact. Girls with greater social vulnerability, such as those without a male caretaker, had more compromised voice, choice and agency with regards to early marriage. Understanding early marriage decision-making as a process, rather than an endpoint, will better equip programs and policies that aim to eliminate early marriage to address the underlying norms that perpetuate this practice, and is an important lens through which to support the health and human rights of women and girls globally

    Students and brides: a qualitative analysis of the relationship between girls’ education and early marriage in Ethiopia and India

    Get PDF
    Abstract Background Early marriage (< 18 years) is associated with education cessation among girls. Little research has qualitatively assessed how girls build resiliency in affected contexts. This study examines these issues in Oromia, Ethiopia and Jharkhand, India among girls and their decision-makers exposed to early marriage prevention programs. Methods Qualitative interviews were conducted with girls who received the intervention programs and subsequently either a) married prior to age 18 or b) cancelled/postponed their proposed early marriage. Girls also selected up to three marital decision-makers for inclusion in the study. Participants (N = 207) were asked about the value and enablers of, and barriers to, girls’ education and the interplay of these themes with marriage, as part of a larger in-depth interview on early marriage. Interviews were transcribed, coded, and analyzed using latent content analysis. Results Participants recognized the benefits of girls’ education, including increased self-efficacy and life skills for girls and opportunity for economic development. A girl’s capacity and desire for education, as well as her self-efficacy to demand it, were key psychological assets supporting school retention. Social support from parents and teachers was also important, as was social support from in-laws and husbands to continue school subsequent to marriage. Post-marriage education was nonetheless viewed as difficult, particularly subsequent to childbirth. Other noted barriers to girls’ education included social norms against girls’ education and for early marriage, financial barriers, and poor value of education. Conclusion Social norms of early marriage, financial burden of school fees, and minimal opportunity for girls beyond marriage affect girls’ education. Nonetheless, some girls manifest psychological resiliency in these settings and, with support from parents and teachers, are able to stay in school and delay marriage. Unfortunately, girls less academically inclined, and those who do marry early, are less supported by family and existing programs to remain in school; programmatic efforts should be expanded to include educational support for married and childbearing girls as well as options for women and girls beyond marriage

    Co-assembly, spatiotemporal control and morphogenesis of a hybrid protein-peptide system

    Get PDF
    Controlling molecular interactions between bioinspired molecules can enable the development of new materials with higher complexity and innovative properties. Here we report on a dynamic system that emerges from the conformational modification of an elastin-like protein by peptide amphiphiles and with the capacity to access, and be maintained in, non-equilibrium for substantial periods of time. The system enables the formation of a robust membrane that displays controlled assembly and disassembly capabilities, adhesion and sealing to surfaces, self-healing and the capability to undergo morphogenesis into tubular structures with high spatiotemporal control. We use advanced microscopy along with turbidity and spectroscopic measurements to investigate the mechanism of assembly and its relation to the distinctive membrane architecture and the resulting dynamic properties. Using cell-culture experiments with endothelial and adipose-derived stem cells, we demonstrate the potential of this system to generate complex bioactive scaffolds for applications such as tissue engineering.The work was supported by the European Research Council Starting Grant (STROFUNSCAFF), the European Commission under FP7 and H2020 programs ((NMP3- LA-2011-263363, HEALTH-F4-2011-278557, PITN-GA-2012-317304, MSCA-ITN-2014- ETN- 642687, 642687 H2020-NMP-2014-646075), the Ministry of Economy and Competitiveness (Spain) (MAT2012-38043-C02-01, MAT2013-41723-R, MAT2013- 42473-R) the Junta de Castilla y Leon (VA244U13, VA313U14) and the Portuguese Foundation for Science and Technology, grants PTDC/EBB-BIO/114523/2009 and SFRH/ BD/44977/2008. Additional support was obtained from the Bilateral Program Portugal– Spain Integrated Actions 2011 (E-50/11) and Marie Curie Career Integration Grant 618335. The authors thank the European Synchrotron Research Facility for access to synchrotron beamline BM29 and P. Pernot for support during the experiments, and C. López (Centres Científics i Tecnològics University of Barcelona), C. Semino (Institut Químic de Sarrià), E. Rebollo (Advanced Fluorescence Microscopy Unit in the Molecular Biology Institute of Barcelona), J. P. Aguilar, R. Doodkorte, A. Amzour and the technical staff of the Material Characterization Laboratory and Nanovision Laboratory at the Queen Mary University of London for the constructive discussions and contributions in this study
    corecore