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2.
Am J Clin Nutr ; 94(6): 1740S-1744S, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22089447

RESUMEN

Food security exists when all people, at all times, have physical, social, and economic access to sufficient, safe, and nutritious food that meets their dietary needs and food preferences for an active and healthy life. Food insecurity is the converse state, is often associated with poverty and low income, and has important implications for the health and nutrition of individuals. Given their contribution to food production and preparation, their role in society as child bearers and caregivers, the increasing number of female-headed households worldwide, and their disproportionately poor economic status, women need special consideration in discussions of food insecurity and its effect on health, nutrition, and behavior. This article reviews the scientific literature on issues related to women and food insecurity. Food insecurity is associated with obesity, anxiety, and depressive symptoms; risky sexual behavior; poor coping strategies; and negative pregnancy outcomes in women, although evidence about the direction and causality of associations is unclear. There is a lack of evidence and understanding of the effects of food insecurity in resource-poor settings, including its effect on weight, nutritional outcomes, and pregnancy outcomes, as well as its effect on progression of diseases such as HIV infection. More research is needed to guide efficient interventions that address food insecurity among women. However, practical experience suggests that both short-term assistance and longer-term strategies that improve livelihoods, address behavioral and coping strategies, acknowledge the mental health components of food insecurity, and attempt to ensure that women have the same economic opportunities, access to land, and economic power as men are important.


Asunto(s)
Abastecimiento de Alimentos , Desnutrición/complicaciones , Estado Nutricional , Pobreza , Factores Sexuales , Derechos de la Mujer , Peso Corporal , Composición Familiar , Femenino , Infecciones por VIH , Humanos , Desnutrición/terapia , Trastornos Mentales , Embarazo , Resultado del Embarazo , Clase Social
3.
AIDS Res Ther ; 8(1): 37, 2011 Oct 12.
Artículo en Inglés | MEDLINE | ID: mdl-21992146

RESUMEN

BACKGROUND: Partners In Health (PIH) works with the Ministry of Health to provide comprehensive health services in Haiti. Between 1994 and 2009, PIH recommended exclusive formula feeding in the prevention of mother-to-child transmission (PMTCT) of HIV program and provided support to implement this strategy. We conducted this study to assess HIV-free survival and prevalence of diarrhea and malnutrition among infants in our PMTCT program in rural Haiti where exclusive formula feeding was supported. METHODS: We reviewed medical charts of PMTCT mother-infant pairs at PIH between November 2004 and August 2006 through a retrospective longitudinal study and cross-sectional survey. We performed household surveys for each pair and at control households matched by infant's age and gender. RESULTS: 254 mother-infant pairs were included. 15.3% of infants were low birth weight; most births occurred at home (68.8%). 55.9% of households had no latrine; food insecurity was high (mean score of 18; scale 0-27, SD = 5.3). HIV-free survival at 18 months was 90.6%. Within the cohort, 9 children (3.5%) were HIV-infected and 17 (6.7%) died. Community controls were more likely to be breastfed (P = 0.003) and more likely to introduce food early (P = 0.003) than PMTCT-program households. There was no difference in moderate malnutrition (Z score ≤ 2 SD) between PMTCT and community groups after controlling for guardian's education, marital status, and food insecurity (OR = 1.05; 95% CI: 0.67, 1.64; P = 0.84). Diarrhea was 2.9 times more prevalent among community children than PMTCT infants (30.3% vs. 12.2%; P < 0.0001). CONCLUSIONS: In a PIH-supported program in rural Haiti that addressed socioeconomic barriers to ill-health, breast milk substitution was safe, acceptable and feasible for PMTCT for HIV-infected women choosing this option.

4.
PLoS One ; 6(5): e19276, 2011 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-21573152

RESUMEN

INTRODUCTION: At least 36 countries are suffering from severe shortages of healthcare workers and this crisis of human resources in developing countries is a major obstacle to scale-up of HIV care. We performed a case study to evaluate a health service delivery model where a task-shifting approach to HIV care had been undertaken with tasks shifted from doctors to nurses and community health workers in rural Haiti. METHODS: Data were collected using mixed quantitative and qualitative methods at three clinics in rural Haiti. Distribution of tasks for HIV services delivery; types of tasks performed by different cadres of healthcare workers; HIV program outcomes; access to HIV care and acceptability of the model to staff were measured. RESULTS: A shift of tasks occurred from doctors to nurses and to community health workers compared to a traditional doctor-based model of care. Nurses performed most HIV-related tasks except initiation of TB therapy for smear-negative suspects with HIV. Community health workers were involved in over half of HIV-related tasks. HIV services were rapidly scaled-up in the areas served; loss to follow-up of patients living with HIV was less than 5% at 24 months and staff were satisfied with the model of care. CONCLUSION: Task-shifting using a community-based, nurse-centered model of HIV care in rural Haiti is an effective model for scale-up of HIV services with good clinical and program outcomes. Community health workers can provide essential health services that are otherwise unavailable particularly in rural, poor areas.


Asunto(s)
Atención a la Salud/organización & administración , Infecciones por VIH , Agentes Comunitarios de Salud , Estudios Transversales , Atención a la Salud/estadística & datos numéricos , Haití , Humanos , Enfermeras y Enfermeros , Médicos
5.
Health Hum Rights ; 12(2): 61-72, 2010 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-21178190

RESUMEN

Months after a 7.0 magnitude earthquake hit Port-au-Prince, Haiti, over one million remain homeless and living in spontaneous internally displaced person (IDP) camps. Billions of dollars from aid organizations and government agencies have been pledged toward the relief effort, yet many basic human needs, including food, shelter, and sanitation, continue to be unmet. The Sphere Project, "Humanitarian Charter and Minimum Standards in Disaster Response," identifies the minimum standards to be attained in disaster response. From a human rights perspective and utilizing key indicators from the Sphere Project as benchmarks, this article reports on an assessment of the living conditions approximately 12 weeks after the earthquake in Parc Jean Marie Vincent, a spontaneous IDP camp in Port-au-Prince. A stratified random sample of households in the camp, proportionate to the number of families living in each sector, was selected. Interview questions were designed to serve as "key indicators" for the Sphere Project minimum standards. A total of 486 interviews were completed, representing approximately 5% of households in each of the five sectors of the camp. Our assessment identified the relative achievements and shortcomings in the provision of relief services in Parc Jean Marie Vincent. At the time of this survey, the Sphere Project minimum standards for access to health care and quantity of water per person per day were being met. Food, shelter, sanitation, and security were below minimum accepted standard and of major concern. The formal assessment reported here was completed by September 2010, and is necessarily limited to conditions in Haiti before the cholera outbreak in October.


Asunto(s)
Terremotos , Derechos Humanos , Recolección de Datos , Femenino , Haití , Humanos , Entrevistas como Asunto , Masculino , Sistemas de Socorro/normas
7.
AIDS ; 24 Suppl 1: S73-8, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20023443

RESUMEN

OBJECTIVES: South-south collaborations in building human resource capacity have been inadequately emphasized globally despite the growing experience among resource-poor countries in scaling up HIV care and the funding to implement programmes. This paper aims to describe one such successful collaboration, in which a model of HIV care was developed in Haiti, adapted and expanded to Lesotho, and allowed the effective scale-up of HIV and other treatment services in a rural African setting. METHODS: Institutional experiences and lessons learned over a 10-year period in Haiti and a 3-year period in Lesotho are discussed. RESULTS: The Haiti-Lesotho collaborative model shows that human resource capacity can be built using creative partnerships and exchanges between developing countries, particularly with financial support from the north. The collaboration allows for the sharing of experiences and solutions through perspectives and experiences that are unique to developing countries. Healthcare workers in Haiti and Lesotho have established meaningful and fruitful cross-country working relationships, job satisfaction and retention has been improved and a sense of solidarity developed. The model of care developed in Haiti was successfully adapted, replicated and implemented in Lesotho. CONCLUSION: South-south collaborations are an important way for countries with established experience managing HIV in resource-poor settings to share their skills in a collaborative fashion with other nations facing similar disease problems and infrastructural challenges. This model for scaling up effective practice should be encouraged and supported by programme funders.


Asunto(s)
Servicios de Salud Comunitaria/organización & administración , Infecciones por VIH/terapia , Servicios de Salud Rural/organización & administración , Terapia Antirretroviral Altamente Activa , Conducta Cooperativa , Infecciones por VIH/epidemiología , Haití/epidemiología , Humanos , Lesotho/epidemiología
8.
Clin Infect Dis ; 49(7): 1096-102, 2009 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-19725790

RESUMEN

Despite tremendous advances in care for human immunodeficiency virus (HIV) infection and increased funding for treatment, morbidity and mortality due to HIV/AIDS in developing countries remains unacceptably high. A major contributing factor is that >800 million people remain chronically undernourished globally, and the HIV epidemic largely overlaps with populations already experiencing low diet quality and quantity. Here, we present an updated review of the relationship between HIV infection, nutritional deficiencies, and food insecurity and consider efforts to interrupt this cycle at a programmatic level. As HIV infection progresses, it causes a catabolic state and increased susceptibility to other infections, which are compounded by a lack of caloric and other nutrient intake, leading to progressive worsening of malnutrition. Despite calls from national and international organizations to integrate HIV and nutritional programs, data are lacking on how such programs can be effectively implemented in resource-poor settings, on the optimum content and duration of nutritional support, and on ideal target recipients.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/complicaciones , Síndrome de Inmunodeficiencia Adquirida/epidemiología , Desnutrición/complicaciones , Desnutrición/epidemiología , Síndrome de Inmunodeficiencia Adquirida/mortalidad , Países en Desarrollo , Humanos , Desnutrición/mortalidad
9.
Am J Physiol Gastrointest Liver Physiol ; 287(2): G334-43, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15044179

RESUMEN

cAMP has previously been shown to promote cell survival in a variety of cell types, but the downstream signaling pathway(s) of this antiapoptotic effect is unclear. Thus the role of cAMP signaling through PKA and cAMP-regulated guanine nucleotide exchange factors (cAMP-GEFs) in cAMP's antiapoptotic action was investigated in the present study. cAMP's protective effect against bile acid-, Fas ligand-, and TNF-alpha-induced apoptosis in rat hepatocytes was largely unaffected by the selective PKA inhibitor, Rp-8-(4-chlorophenylthio)-cAMP (Rp-cAMP). In contrast, a novel cAMP analog, 8-(4-chlorophenylthio)-2'-O-methyl (CPT-2-Me)-cAMP, which activated cAMP-GEFs in hepatocytes without activating PKA, protected hepatocytes against apoptosis induced by bile acids, Fas ligand, and TNF-alpha. The role of cAMP-GEF and PKA on activation of Akt, a kinase implicated in cAMP survival signaling, was investigated. Inhibition of PKA with RP-cAMP had no effect on cAMP-mediated Akt phosphorylation, whereas CPT-2-Me-cAMP, which did not activate PKA, induced phosphatidylinositol 3-kinase (PI3-kinase)-dependent activation of Akt. Pretreatment of hepatocytes with the PI3-kinase inhibitor, Ly-294002, prevented CPT-2-Me-cAMP's protective effect against bile acid and Fas ligand, but not TNF-alpha-mediated apoptosis. Glucagon, CPT-cAMP, and CPT-2-Me-cAMP all activated Rap 1, a downstream effector of cAMP-GEF. These results suggest that a PKA-independent cAMP/cAMP-GEF/Rap pathway exists in hepatocytes and that activation of cAMP-GEFs promotes Akt phosphorylation and hepatocyte survival. Thus a cAMP/cAMP-GEF/Rap/PI3-kinase/Akt signaling pathway may confer protection against bile acid- and Fas-induced apoptosis in hepatocytes.


Asunto(s)
Apoptosis/fisiología , Proteínas Quinasas Dependientes de AMP Cíclico/fisiología , Factores de Intercambio de Guanina Nucleótido/fisiología , Hepatocitos/fisiología , Animales , Ácidos y Sales Biliares/farmacología , Células Cultivadas , AMP Cíclico/análogos & derivados , AMP Cíclico/farmacología , AMP Cíclico/fisiología , Citoprotección , Hepatocitos/efectos de los fármacos , Masculino , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Proteínas Proto-Oncogénicas/metabolismo , Proteínas Proto-Oncogénicas c-akt , Ratas , Ratas Wistar , Tionucleótidos/farmacología , Proteínas de Unión al GTP rap1/fisiología
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