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1.
Health Promot Int ; 36(6): 1765-1774, 2021 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-33604649

RESUMO

Over the past four decades, group-based microfinance programs have spread rapidly throughout south Asia, sub-Saharan Africa and Latin America. Recent evaluations of the programs have identified social capital as a common byproduct of frequent association by members, increasing trust, belonging and normative influence. Concurrently, social capital is increasingly recognized as an important health determinant. We present an overview of a program intervention operating in Kenya that utilizes a microfinance approach to produce social capital, and seeks to leverage that social capital to promote health at three levels-the village, group, and individual. A theory of change is presented for each of these three levels, demonstrating conceptually and with program examples how social capital can be applied to promote health. Related social theories and approaches, further research and program directions are given for each of the three levels. We identify potential to improve a broad range of health outcomes through this innovative model, which requires engagement with health promotion researchers and planners in low- and middle-income countries for further refinement and validation.


Assuntos
Promoção da Saúde , Capital Social , Humanos , Renda , Quênia , Inquéritos e Questionários
2.
J Water Health ; 14(3): 513-27, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27280615

RESUMO

Water quality is an important determinant of diarrheal illnesses, especially affecting children in sub-Saharan Africa. Orphans and vulnerable children (OVC) in sub-Saharan Africa are at increased risk of poor quality drinking water, and therefore of diarrheal illness. The present study assesses primary drinking water source and typical household water purification among OVC households involved in a multi-sectoral empowerment program in semi-rural Kenya. Findings show water purification practices, but not water source, significantly increase with more time in the program. Other factors associated with safer water include household income, orphan type, food consumption and security, school completion, psychological resilience, engaging in sexual intercourse with more than one partner in the past 12 months, and previous year's financial status. Incorporating water quality improvements in a community-based empowerment program such as the one described may be one method of improving water quality and decreasing diarrheal illnesses among OVCs in sub-Saharan Africa.


Assuntos
Purificação da Água , Qualidade da Água , Adolescente , Crianças Órfãs/estatística & dados numéricos , Características da Família , Feminino , Humanos , Quênia , Masculino , População Rural , Fatores Socioeconômicos , Purificação da Água/estatística & dados numéricos , Adulto Jovem
3.
Biochim Biophys Acta ; 1830(10): 4594-603, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23747302

RESUMO

BACKGROUND: Broader clinical acceptance of photodynamic therapy is currently hindered by (a) poor depth efficacy, and (b) predisposition towards establishment of an angiogenic environment during the treatment. Improved depth efficacy is being sought by exploiting the NIR tissue transparency window and by photo-activation using two-photon absorption (2PA). Here, we use two-photon activation of PDT sensitizers, untargeted and targeted to SST2 receptors or EGF receptors, to achieve deep tissue treatment. METHODS: Human tumor lines, positive or negative for SST2r expression were used, as well as murine 3LL cells and bovine aortic endothelial cells. Expression of SST2 receptors on cancer cells and tumor vasculature was evaluated in vitro and frozen xenograft sections. PDT effects on tumor blood flow were followed using in vivo scanning after intravenous injection of FITC conjugated dextran 150K. Dependence of the PDT efficacy on the laser pulse duration was evaluated. Effectiveness of targeting to vascular SST2 receptors was compared to that of EGF receptors, or no targeting. RESULTS: Tumor vasculature stained for SST2 receptors even in tumors from SST2 receptor negative cell lines, and SST2r targeted PDT led to tumor vascular shutdown. Stretching the pulse from ~120fs to ~3ps led to loss of the PDT efficacy especially at greater depth. PDT targeted to SST2 receptors was much more effective than untargeted PDT or PDT targeted to EGF receptors. GENERAL SIGNIFICANCE: The use of octreotate to target SST2 receptors expressed on tumor vessels is an excellent approach to PDT with few recurrences and some long term cures.


Assuntos
Vasos Sanguíneos/efeitos dos fármacos , Neoplasias/tratamento farmacológico , Fotoquimioterapia , Receptores de Somatostatina/efeitos dos fármacos , Espectroscopia de Luz Próxima ao Infravermelho , Linhagem Celular Tumoral , Humanos , Fótons
4.
Health Psychol Behav Med ; 11(1): 2164498, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36643576

RESUMO

Background: Emerging Long COVID research indicates the condition has major population health consequence. Other chronic conditions have previously been associated with functional and mental health challenges - including depression, anxiety, post-traumatic stress disorder (PTSD), suicide ideation, substance use and lower life satisfaction. Methods: This study explores correlations between self-reported Long COVID, functional and mental health challenges among a random community-based sample of people (n = 655) aged 20-50 years who contracted COVID-19 prior to vaccination in a Texas county. A random sample of eligible participants was mailed a link to participate in a semi-structured questionnaire. Participant responses, including open-ended responses regarding their experience following COVID-19, were paired with health system data. Results: Long COVID was associated with increased presence of depression (13% increase), anxiety (28% increase), suicide ideation (10% increase), PTSD (20% increase), and decreased life satisfaction and daily functioning. Structural equation modeling, controlling for sociodemographic variables and imposing a theoretical framework from existing chronic disease research, demonstrated correlations between Long COVID and higher PTSD, suicide ideation and lower life satisfaction were mediated by higher daily functional challenges and common mental disorders. Conclusions: Basic and applied, interdisciplinary research is urgently needed to characterize the population-based response to the new challenge of Long COVID.

5.
Int J Child Maltreat ; 6(4): 555-566, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38333764

RESUMO

Increasing partner cooperation is an established approach to reducing intimate partner violence. This strategy, known in the literature as "gender transformation," benefits mental and physical health of women and men. Less is known about the potential for gender transformation strategies to improve the nurturing context for children. We hypothesize that increasing partner cooperation, a common benefit of community-based empowerment programs, would decrease child maltreatment through reducing intimate partner conflict and improving maternal mental health. This study utilizes cohort data from women (n = 400) participating in a combined group-based microfinance program to assess potential mechanisms by which partner cooperation at T1 (June 2018) predicts less children maltreatment at T2 (June 2019). As hypothesized, partner cooperation predicts less subsequent child maltreatment-frequency of neglect, corporal punishment, physical assault, and psychological abuse in the past month. This association is mediated completely by subsequent more partner cooperation and less intimate partner conflict, maternal loneliness, and depression. Implications of this study include potential for combining multiple development areas-women's empowerment, intimate partner cooperation, mental health, and child nurturing contexts. Future study should assess these pathways in a cluster-based randomized trial, and explore how findings may inform policy and practice where these domains are less integrated.

6.
J Fam Violence ; 38(3): 407-417, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37197413

RESUMO

Multisystem, multi-level interventions are required to enable resilient, nurturing environments for children facing adversity. This study assesses parenting behavior associated with participation in a community-based, adapted microfinance program, and mediated by program-affiliated social capital, maternal depression and self-esteem among Kenyan women. Participants in the intervention, Kuja Pamoja kwa Jamii (KPJ, Swahili for "Come Together to Belong"), gather weekly to engage in trainings and group-based microfinance. Groups selected for the study had participated in the program for 0-15 months at the time of the first interview. Women (n = 400) completed surveys in June 2018 and June 2019. Measures included duration of program exposure, group-affiliated social capital (i.e. trust, belonging, cohesion, and expectation of mutual benefit), depression, self-esteem, and conflict tactics. We used regression analyses and generalized structural equation models to explore associations between program exposure, social capital, psychosocial variables and child maltreatment. Each standard deviation increase in duration of program exposure decreased odds of child physical abuse by 40% and child neglect by 35%. Each standard deviation in the social capital index predicted a significant reduction in odds of child physical abuse (aOR: 0.67), and child neglect (aOR: 0.71). Self-esteem and depression fully mediated observed associations between social capital and child maltreatment. Findings recommend further investigation of the potential for adapted microfinance programs to deliver parenting interventions, improve mental health and foster resilience-enabling social capital. A randomized control trial is required to validate the potential of the assessed intervention to improve parenting behaviors and supportive social conditions.

7.
J Community Appl Soc Psychol ; 33(3): 756-772, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37213894

RESUMO

Communities often face numerous challenges and opportunities - situations that may be reduced to specific domains by researchers, policy makers and interventionists. This study informs and animate a new "flourishing community" model that seeks to build collective capacity to respond to challenges and opportunities. Our work is a response to children living on the streets, whose families face myriad challenges. The Sustainable Development Goals make explicit the need for new, integrative models that acknowledge the interplay of challenges and opportunities within communities through the flow of everyday life. Flourishing communities are generative, supportive, resilient, compassionate, curious, responsive, self-determined, and build resources across economic, social, educational, and health domains. Integrating theoretical models - specifically, community-led development, multi-systemic resilience, and the "broaden and build" cycle of attachment - provide a testable framework to understand and explore hypothesized relationships between survey-collected, cross-sectional variables with 335 participants. Higher collective efficacy, a common byproduct of group-based microlending activities, was correlated with higher sociopolitical control. This correlation was mediated by higher positive emotion, meaning in life, spirituality, curiosity, and compassion. Further research is required to understand replicability, cross-sectoral impact, mechanisms of integrating health and development domains, and implementation challenges of the flourishing community model. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.

8.
Front Psychol ; 14: 1175593, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37680240

RESUMO

Introduction: Millions of children and youth live on city streets across the globe, vulnerable to substance use, abuse, material and structural neglect. Structural resilience, the re-establishment of access to structural goods within a society such as housing, education, and healthcare following some interruption, provides an orientation for research and interventional efforts with street-involved children and youth (SICY). Further, a structural resilience framework supports organizing interactions between levels and sectors of a socio-ecology. Methods: Following the expressed interests of Kenyan SICY, and consistent with emerging policy interests at national and global levels, we assess reintegration trajectories of Kenyan SICY (n = 227) participating in a new program intervention and model. The intervention combines two coordinated, parallel programs - one focused on the rescue, rehabilitation, reintegration and resocialization of SICY, and the other focused on empowering families and communities to provide better care for children and youth who are reintegrating from life on the streets to the broader community. Data were collected and analyzed from multiple stages across SICY involvement with the intervention. Results: We found 79% of SICY participants reintegrated with the broader community, and 50% reintegrated with families of origin and returned to school. Twenty-five percent of participants reintegrated to a boarding school, polytechnical school, or began a business. Probability of reintegrating successfully was significantly improved among participants whose families participated in the family- and community-oriented program, who were younger, with less street-exposure, expressed more personal interests, and desired to reintegrate with family. Discussion: To our knowledge, these are the first quantitative data published of successful reintegration of SICY to the broader, non-institutionalized community in any low- or middle-income country. Future research should (1) identify factors across socio-ecological levels and sectors contributing to health and developmental outcomes of reintegrated children and youth, (2) mechanisms to support SICY for whom the interventional strategy did not work, (3) methods to prevent street-migration by children and youth, and (4) system development to coordinate follow-up and relevant investment by institutions, organizations and community leaders to continue reintegration work.

9.
Glob Public Health ; 17(12): 3399-3411, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35787237

RESUMO

ABSTRACTSocial capital predicts many positive health outcomes, including food and water access and sufficiency. Hence, increasing social capital has emerged as one potential strategy to improve food and water security. In this study, we investigate whether social capital generated through participation in a community-based microlending programme based in semi-rural Kenya is associated with water and food insecurity, and explore the interconnectedness of water and food insecurity through mediation analysis. Randomly-selected women participants of the community-based programme (n = 400) were interviewed in June 2018 and again in June 2019. Survey measures included water insecurity, food insecurity and an index of social capital constructs, namely group cohesion, trust, expectations of mutual support, sense of belonging and frequency of attendance in the programme. Random effects linear regression showed that an increase the social capital index was associated with lower water and food insecurity. The mediation analysis indicated that the association between social capital and food insecurity was completely mediated by water insecurity. This study demonstrates the need for further investigation into how social capital-generating programmes can contribute to systems approaches for collaborative food and water security programmes, especially among rural communities in low- and middle-income countries.


Assuntos
População Rural , Capital Social , Humanos , Feminino , Quênia , Insegurança Hídrica , Abastecimento de Alimentos , Insegurança Alimentar
10.
J Health Psychol ; 27(1): 81-91, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-32705891

RESUMO

Globally there is high morbidity due to mental illnesses, necessitating research on positive mental health and new models of mental health promotion. This study investigates the mediating role of spirituality to known pathways between childhood social exposures and adult mental health outcomes-hope, meaning in life and depression among young Kenyan men. Using the "religion as attachment" framework, we investigate whether childhood attachment conditions predict lower scores of daily spiritual experiences, and whether this pathway mediates associations between childhood attachment conditions and current depression, meaning in life, and hope. Spirituality significantly mediated associations between childhood attachments and adult mental health.


Assuntos
Saúde Mental , Espiritualidade , Adulto , Humanos , Quênia , Acontecimentos que Mudam a Vida , Masculino , Religião
11.
J Anxiety Disord ; 91: 102614, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35988441

RESUMO

Hundreds of millions of people suffer anxiety disorders globally, demonstrating need for scalable and effective interventions. Adverse childhood experiences contribute to this mental health burden. The stress-buffering hypothesis, which posits social factors moderate prior adversity and subsequent mental health outcomes, provides one theoretical avenue to consider observations that group-based microfinance programs improve social capital. We investigate associations between adverse childhood experiences, generalized anxiety among adults and social capital associated with participation in a group-based microfinance program in rural Kenya. Adult participants (n = 400 women) responded to standardized measures of childhood adversity in June 2018, group-affiliated social capital and generalized anxiety in June 2019. Cumulative adverse childhood experiences predicted higher anxiety, which was statistically moderated by the presence of group-affiliated interpersonal trust. This study is the first to find social capital associated with participation in a group-based microfinance program statistically moderates expected associations between adverse childhood experiences and adult generalized anxiety. Future study should be conducted using a cluster-randomized control design to further assess the potential of this intervention method to ameliorate associations between past adversity and current mental health.


Assuntos
Experiências Adversas da Infância , Capital Social , Adulto , Ansiedade/psicologia , Transtornos de Ansiedade , Feminino , Humanos , Quênia
12.
Public Health Rep ; 136(6): 658-662, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34460336

RESUMO

Public health in the United States has long been challenged by budget cuts and a declining workforce. The COVID-19 pandemic exposed the vulnerabilities left by years of neglecting this crucial frontline defense against emerging infectious diseases. In the early days of the pandemic, the University of Texas Medical Branch and the Galveston County Health District (GCHD) partnered to bolster Galveston County's public health response. We mobilized interprofessional teams of students and provided training to implement projects identified by GCHD as necessary for responding to the pandemic. We provided a safe outlet for students to contribute to their community by creating remote volunteer opportunities when students faced displacement from clinical rotations and in-person didactics converted to virtual formats. As students gradually returned to clinical rotations and didactic demands increased, it became necessary to expand volunteer efforts beyond what had initially been mostly hand-selected student teams. We have passed the initial emergency response phase of COVID-19 in Galveston County and are transitioning into more long-term opportunities as COVID-19 moves from pandemic to endemic. In this case study, we describe our successes and lessons learned.


Assuntos
COVID-19/epidemiologia , Administração em Saúde Pública , Estudantes de Medicina , Voluntários , Mão de Obra em Saúde/organização & administração , Humanos , Relações Interprofissionais , Pandemias , SARS-CoV-2 , Telefone , Estados Unidos/epidemiologia
13.
Int J Soc Psychiatry ; 67(6): 613-621, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33059496

RESUMO

BACKGROUND: Tools and systems to improve mental health have been understudied in low-resource environments, such as sub-Saharan Africa. This study explores depression amongst women participating in a community-based intervention combining savings- and lending-groups, entrepreneurial training and other skills training. AIMS: This study aims to determine whether depression decreases with more program participation, and the extent to which social capital variables may explain these changes. METHOD: Survey data were gathered in June 2018, within 6 months of group formation, and again in June 2019 from 400 women participants in the program. Data between 2018 and 2019 were compared using Wilcoxon rank-sum and Chi square tests. Inferential statistics included random effects regression models and general structural equation models. RESULTS: At 1-year follow-up, depression and loneliness amongst Kenyan women (n = 400) participating in the program had decreased. Social capital remained higher within groups than within the broader community, and mediated the association between program participation and decreased depression. CONCLUSIONS: Findings suggest this novel, community-based intervention has the potential to benefit mental health. Future research, including a randomised control trial, is required to establish (1) the extent of the program's benefits and (2) the program's application to particular subject areas and population segments.


Assuntos
Capital Social , Depressão/terapia , Feminino , Humanos , Quênia , Solidão , Saúde Mental
14.
Clin Cancer Res ; 14(20): 6564-73, 2008 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-18927297

RESUMO

PURPOSE: The aim of this study was to show that novel photodynamic therapy (PDT) sensitizers can be activated by two-photon absorption in the near-IR region of the spectrum and to show, for the first time, that such activation can lead to tumor regressions at significant tissue depth. These experiments also evaluated effects of high-energy femtosecond pulsed laser irradiation on normal tissues and characterized the response of xenograft tumors to our PDT protocols. EXPERIMENTAL DESIGN: Human small cell lung cancer (NCI-H69), non-small cell lung cancer (A549), and breast cancer (MDA-MB-231) xenografts were induced in SCID mice. Irradiation of sensitized tumors was undertaken through the bodies of tumor-bearing mice to give a treatment depth of 2 cm. Posttreatment tumor regressions and histopathology were carried out to determine the nature of the response to these new PDT agents. Microarray expression profiles were conducted to assess the similarity of responses to single and two-photon activated PDT. RESULTS: Regressions of all tumor types tested were seen. Histopathology was consistent with known PDT effects, and no, or minimal, changes were noted in irradiated normal tissues. Cluster analysis of microarray expression profiling showed reproducible changes in transcripts associated with apoptosis, stress, oxygen transport, and gene regulation. CONCLUSIONS: These new PDT sensitizers can be used at a depth of 2 cm to produce excellent xenograft regressions. The tumor response was consistent with known responses to single-photon activated PDT. Experiments in larger animals are warranted to determine the maximal achievable depth of treatment.


Assuntos
Hematoporfirinas/uso terapêutico , Neoplasias/tratamento farmacológico , Fotoquimioterapia , Fármacos Fotossensibilizantes/uso terapêutico , Ensaios Antitumorais Modelo de Xenoenxerto , Animais , Apoptose/efeitos da radiação , Feminino , Perfilação da Expressão Gênica , Regulação Neoplásica da Expressão Gênica/efeitos da radiação , Hematoporfirinas/síntese química , Hematoporfirinas/química , Humanos , Raios Infravermelhos , Lasers , Masculino , Camundongos , Camundongos SCID , Neoplasias/metabolismo , Neoplasias/patologia , Estresse Oxidativo/efeitos da radiação , Oxigênio/metabolismo , Fótons , Fármacos Fotossensibilizantes/síntese química , Fármacos Fotossensibilizantes/química , Células Tumorais Cultivadas , Irradiação Corporal Total
15.
Lancet Infect Dis ; 14(10): 976-81, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25195178

RESUMO

BACKGROUND: In May, 2013, an outbreak of symptomatic hepatitis A virus infections occurred in the USA. Federal, state, and local public health officials investigated the cause of the outbreak and instituted actions to control its spread. We investigated the source of the outbreak and assessed the public health measures used. METHODS: We interviewed patients, obtained their shopping information, and did genetic analysis of hepatitis A virus recovered from patients' serum and stool samples. We tested products for the virus and traced supply chains. FINDINGS: Of 165 patients identified from ten states, 69 (42%) were admitted to hospital, two developed fulminant hepatitis, and one needed a liver transplant; none died. Illness onset occurred from March 31 to Aug 12, 2013. The median age of patients was 47 years (IQR 35-58) and 91 (55%) were women. 153 patients (93%) reported consuming product B from retailer A. 40 patients (24%) had product B in their freezers, and 113 (68%) bought it according to data from retailer A. Hepatitis A virus genotype IB, uncommon in the Americas, was recovered from specimens from 117 people with hepatitis A virus illness. Pomegranate arils that were imported from Turkey--where genotype IB is common--were identified in product B. No hepatitis A virus was detected in product B. INTERPRETATION: Imported frozen pomegranate arils were identified as the vehicle early in the investigation by combining epidemiology--with data from several sources--genetic analysis of patient samples, and product tracing. Product B was removed from store shelves, the public were warned not to eat product B, product recalls took place, and postexposure prophylaxis with both hepatitis A virus vaccine and immunoglobulin was provided. Our findings show that modern public health actions can help rapidly detect and control hepatitis A virus illness caused by imported food. Our findings show that postexposure prophylaxis can successfully prevent hepatitis A illness when a specific product is identified. Imported food products combined with waning immunity in some adult populations might make this type of intervention necessary in the future. FUNDING: US Centers for Disease Control and Prevention, US Food and Drug Administration, and US state and local public health departments.


Assuntos
Surtos de Doenças , Contaminação de Alimentos , Vírus da Hepatite A Humana/isolamento & purificação , Hepatite A/epidemiologia , Lythraceae/virologia , Vacinas Virais/administração & dosagem , Adulto , Notificação de Doenças , Estudos Epidemiológicos , Fezes/virologia , Feminino , Frutas/virologia , Genótipo , Hepatite A/prevenção & controle , Hepatite A/terapia , Vírus da Hepatite A Humana/genética , Vírus da Hepatite A Humana/imunologia , Humanos , Imunoglobulinas/administração & dosagem , Masculino , Pessoa de Meia-Idade , Filogenia , Recall e Retirada de Produto , Análise de Sequência de DNA , Turquia , Estados Unidos/epidemiologia
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