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1.
Malar J ; 19(1): 166, 2020 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-32334581

RESUMEN

The Senegal National Malaria Control Programme (NMCP) introduced home-based malaria management for all ages, with diagnosis by rapid diagnostic test (RDT) and treatment with artemisinin-based combination therapy (ACT) in 2008, expanding to over 2000 villages nationwide by 2014. With prise en charge à domicile (PECADOM), community health workers (CHWs) were available for community members to seek care, but did not actively visit households to find cases. A trial of a proactive model (PECADOM Plus), in which CHWs visited all households in their village weekly during transmission season to identify fever cases and offer case management, in addition to availability during the week for home-based management, found that CHWs detected and treated more cases in intervention villages, while the number of cases detected weekly decreased over the transmission season. The NMCP scaled PECADOM Plus to three districts in 2014 (132 villages), to a total of six districts in 2015 (246 villages), and to a total of 16 districts in 2016 (708 villages). A narrative case study with programmatic results is presented. During active sweeps over approximately 20 weeks, CHWs tested a mean of 77 patients per CHW in 2014, 89 patients per CHW in 2015, and 90 patients per CHW in 2016, and diagnosed a mean of 61, 61 and 43 patients with malaria per CHW in 2014, 2015 and 2016, respectively. The number of patients who sought care between sweeps increased, with a 104% increase in the number of RDTs performed and a 77% increase in the number of positive tests and patients treated with ACT during passive case detection. While the number of CHWs increased 7%, the number of patients receiving an RDT increased by 307% and the number of malaria cases detected and treated by CHWs increased 274%, from the year prior to PECADOM Plus introduction to its first year of implementation. Based on these results, approximately 700 additional CHWs in 24 new districts were added in 2017. This case study describes the process, results and lessons learned from Senegal's implementation of PECADOM Plus, as well as guidance for other programmes considering introduction of this innovative strategy.


Asunto(s)
Manejo de Caso/estadística & datos numéricos , Agentes Comunitarios de Salud/estadística & datos numéricos , Malaria/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Pruebas Diagnósticas de Rutina/estadística & datos numéricos , Humanos , Lactante , Recién Nacido , Persona de Mediana Edad , Senegal , Adulto Joven
2.
Malar J ; 18(1): 258, 2019 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-31358005

RESUMEN

BACKGROUND: Ensuring universal access to malaria diagnosis and treatment is a key component of Pillar 1 of the World Health Organization Global Technical Strategy for Malaria 2016-2030. To achieve this goal it is essential to know the types of facilities where the population seeks care as well as the malaria service readiness of these facilities in endemic countries. METHODS: To investigate the utilization and provision of malaria services, data on the sources of advice or treatment in children under 5 years with fever from the household-based Demographic and Health Surveys (DHS) and on the components of malaria service readiness from the facility-based Service Provision Assessment (SPA) surveys were examined in Malawi, Senegal and Tanzania. Facilities categorized as malaria-service ready were those with: (1) personnel trained in either malaria rapid diagnostic testing (RDT), microscopy or case management/treatment of malaria in children; (2) national guidelines for the diagnosis and treatment of malaria; (3) diagnostic capacity (available RDT tests or microscopy equipment as well as staff trained in its use); and, (4) unexpired artemisinin-based combination therapy (ACT) available on the day of the survey. RESULTS: In all three countries primary-level facilities (health centre/health post/health clinic) were the type of facility most used for care of febrile children. However, only 69% of these facilities in Senegal, 32% in Malawi and 19% in Tanzania were classified as malaria-service ready. Of the four components of malaria-service readiness in the facilities most frequented by febrile children, diagnostic capacity was the weakest area in all three countries, followed by trained personnel. All three countries performed well in the availability of ACT. CONCLUSIONS: This analysis highlights the need to improve the malaria-service readiness of facilities in all three countries. More effort should be focused on facilities that are commonly used for care of fever, especially in the areas of malaria diagnostic capacity and provider training. It is essential for policymakers to consider the malaria-service readiness of primary healthcare facilities when allocating resources. This is particularly important in limited-resource settings to ensure that the facilities most visited for care are properly equipped to provide diagnosis and treatment for malaria.


Asunto(s)
Instituciones de Salud/estadística & datos numéricos , Servicios de Salud/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Preescolar , Humanos , Lactante , Recién Nacido , Malaui , Senegal , Tanzanía
3.
Trop Med Int Health ; 20(11): 1438-1446, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26171642

RESUMEN

OBJECTIVES: We piloted a community-based proactive malaria case detection model in rural Senegal to evaluate whether this model can increase testing and treatment and reduce prevalence of symptomatic malaria in target communities. METHODS: Home care providers conducted weekly sweeps of every household in their village throughout the transmission season to identify patients with symptoms of malaria, perform rapid diagnostic tests (RDT) on symptomatic patients and provide treatment for positive cases. The model was implemented in 15 villages from July to November 2013, the high transmission season. Fifteen comparison villages were chosen from those implementing Senegal's original, passive model of community case management of malaria. Three sweeps were conducted in the comparison villages to compare prevalence of symptomatic malaria using difference in differences analysis. RESULTS: At baseline, prevalence of symptomatic malaria confirmed by RDT for all symptomatic individuals found during sweeps was similar in both sets of villages (P = 0.79). At end line, prevalence was 16 times higher in the comparison villages than in the intervention villages (P = 0.003). Adjusting for potential confounders, the intervention was associated with a 30-fold reduction in odds of symptomatic malaria in the intervention villages (AOR = 0.033; 95% CI: 0.017, 0.065). Treatment seeking also increased in the intervention villages, with 57% of consultations by home care providers conducted between sweeps through routine community case management. CONCLUSIONS: This pilot study suggests that community-based proactive case detection reduces symptomatic malaria prevalence, likely through more timely case management and improved care seeking behaviour. A randomised controlled trial is needed to further evaluate the impact of this model.

4.
Am J Trop Med Hyg ; 104(6): 1955-1959, 2021 04 23.
Artículo en Inglés | MEDLINE | ID: mdl-33891560

RESUMEN

World Malaria Day 2021 coincides with the 15th anniversary of the United States President's Malaria Initiative (PMI) and follows the first anniversary of the declaration of the coronavirus disease (COVID-19) pandemic. From 2006 to the present, the PMI has led to considerable country-managed progress in malaria prevention, care, and treatment in 24 of the highest-burden countries in sub-Saharan Africa and three countries in the Southeast Asia Greater Mekong subregion. Furthermore, it has contributed to a 29% reduction in malaria cases and a 60% reduction in the death rates in sub-Saharan Africa. In this context of progress, substantial heterogeneity persists within and between countries, such that malaria control programs can seek subnational elimination in some populations but others still experience substantial malaria disease and death. During the COVID-19 pandemic, most malaria programs have shown resilience in delivering prevention campaigns, but many experienced important disruptions in their care and treatment of malaria illness. Confronting the COVID-19 pandemic and building on the progress against malaria will require fortitude, including strengthening the quality and ensuring the safety and resiliency of the existing programs, extending services to those currently not reached, and supporting the people and partners closest to those in need.


Asunto(s)
COVID-19/epidemiología , Salud Global , Malaria/epidemiología , Malaria/prevención & control , Servicios Preventivos de Salud , SARS-CoV-2 , África del Sur del Sahara , Niño , Mortalidad del Niño , Humanos , Malaria/mortalidad , Control de Mosquitos , Estados Unidos , Organización Mundial de la Salud
5.
Glob Adv Health Med ; 9: 2164956120976107, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-35174005

RESUMEN

BACKGROUND: Peace Corps is a US government volunteer service agency which provides trained Volunteers to assist host countries in addressing critical development challenges at the community level. The US President's Malaria Initiative provides technical expertise and financial resources to reduce malaria morbidity and mortality in focus countries in sub-Saharan Africa. OBJECTIVE: We aim to describe the nature of the collaboration between Peace Corps and President's Malaria Initiative (PMI) and highlight examples of the partnership in select countries. METHODS: We conducted an analysis of retrospective data obtained from Peace Corps and PMI for the years 2014-2019. RESULTS: Volunteers were able to learn about and work on malaria prevention and control with PMI in three key ways: a malaria-specific training program for staff and Volunteers; malaria-focused small grants; and extension of Volunteer assignments for a third year to support malaria projects. Successful Peace Corps projects supported by PMI, at the community level, were highlighted, with a focus on Rwanda, Benin, Zambia, Madagascar, and Senegal. In Fiscal Year 2019, 1408 Volunteers contributed to malaria prevention activities in 18 Peace Corps programs across Africa, of which 15 were PMI focus countries. While the majority of documented work by Volunteers has involved social and behavior change, there were many other ways to partner with PMI staff. CONCLUSION: Each of the proven interventions that PMI supports for malaria prevention and control may have a role for Volunteer involvement. Combined with the technical expertise and the relationships that PMI staff have with national-level counterparts in PMI focus countries, the continued collaboration between Peace Corps and PMI can accelerate the fight against malaria.

6.
Rev Lat Am Enfermagem ; 27: e3135, 2019 Apr 29.
Artículo en Portugués, Inglés, Español | MEDLINE | ID: mdl-31038629

RESUMEN

OBJECTIVES: this case-control study compared levels of stress and allostatic load (AL) among Mexican women in the US ( n =19) and Mexico ( n = 40). METHOD: measures of stress included the Perceived Stress Scale (PSS) and the Hispanic Women's Social Stressor Scale (HWSSS). A composite measure of 8 indicators of AL (systolic and diastolic blood pressure, body mass index (BMI), waist-to-hip ratio, total cholesterol, glycated hemoglobin (hemoglobin A1C), triglycerides and C-reactive protein) was calculated. RESULTS: there were no significant group differences in AL between Mexican and Mexican immigrant women ( t = 1.55, p = .126). A principal component factor analysis was conducted on the 8 AL indicators; a 2-factor solution explained 57% of the variance. Group differences in the two AL factors were analyzed using MANOVA. BMI and waist-to-hip ratios were lower, but blood pressure and triglycerides were higher in the US group and were mediated by time in the US. Greater acculturation stress was significantly related to increased waist-to-hip ratio ( r = .57, p = .02). FINAL REMARKS: findings suggest some measures of AL increased with time in the US, and acculturation stress may be a significant factor.


Asunto(s)
Aculturación , Alostasis , Estrés Psicológico/psicología , Análisis de Varianza , Biomarcadores/análisis , Presión Sanguínea , Índice de Masa Corporal , Proteína C-Reactiva/análisis , Estudios de Casos y Controles , Emigrantes e Inmigrantes , Femenino , Hispánicos o Latinos , Humanos , México , Escalas de Valoración Psiquiátrica , Estrés Psicológico/etnología , Triglicéridos/sangre , Estados Unidos
8.
Int J Womens Health ; 9: 59-67, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28184171

RESUMEN

BACKGROUND: Senegal ranks 15th in the world in incidence of cervical cancer, the number one cause of cancer mortality among women in this country. The estimated participation rate for cervical cancer screening throughout Senegal is very low (6.9% of women 18-69 years old), especially in rural areas and among older age groups (only 1.9% of women above the age of 40 years). There are no reliable estimates of the prevalence of cervical dysplasia or risk factors for cervical dysplasia specific to rural Senegal. The goals of this study were to estimate the prevalence of cervical dysplasia in a rural region using visual inspection of the cervix with acetic acid (VIA) and to assess risk factors for cervical cancer control. PATIENTS AND METHODS: We conducted a cross-sectional study in which we randomly selected 38 villages across the Kédougou region using a three-stage clustering process. Between October 2013 and March 2014, we collected VIA screening results for women aged 30-50 years and cervical cancer risk factors linked to the screening result. RESULTS: We screened 509 women; 5.6% of the estimated target population (9,041) in the region. The point prevalence of cervical dysplasia (positive VIA test) was 2.10% (95% confidence interval [CI]: 0.99-3.21). Moreover, 287 women completed the cervical cancer risk factor survey (56.4% response rate) and only 38% stated awareness of cervical cancer; 75.9% of the screened women were less than 40 years of age. CONCLUSION: The overall prevalence of dysplasia in this sample was lower than anticipated. Despite both overall awareness and screening uptake being less than expected, our study highlights the need to address challenges in future prevalence estimates. Principally, we identified that the highest-risk women are the ones least likely to seek screening services, thus illustrating a need to fully understand demand-side barriers to accessing health services in this population. Targeted efforts to educate and motivate older women to seek screenings are needed to sustain an effective cervical cancer screening program.

9.
Sci Total Environ ; 366(2-3): 784-98, 2006 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-16368127

RESUMEN

The non-essential elements, arsenic, cadmium, mercury and lead, inevitably accumulate in marine top predators such as seals. The concentration of these elements and the essential element selenium, due to its proposed protective properties against mercury toxicity in marine mammals, were measured in muscle, liver and kidney from reproductive active females of harp seal (Phagophilus groenlandicus) and hooded seal (Cystophora cristata) caught in the drift ice between Iceland and East Greenland. Arsenic levels were below 1 microg/g w.w. in all analysed samples, and were therefore low compared to other seafood products. The concentrations of arsenic found in the present study were comparable to the results reported in a similar study from 1985. Mean concentrations of total mercury in muscle from the present study were higher than levels in other seafood products. The levels of total mercury from the present study showed a tendency of lower levels in all tissue samples compared to the study from 1985. Methyl mercury displayed a trend of a lower ratio of methyl mercury to total mercury as the concentration of total mercury increased, indicating a demethylation of methyl mercury at high total mercury concentrations (e.g. mercury in liver of hooded seal). The concentration ratio of methyl mercury to total mercury in muscle samples was more than 75%, with total mercury concentration less than 0.5 microg/g w.w., whereas the ratio for liver was as low as 0.2% with a total mercury concentration of 128 microg/g w.w. The molar concentration ratios of selenium to mercury showed that selenium was present in a molar surplus to mercury in all tissues with low mercury concentration. However, there seemed to be a general mobilisation of selenium in liver and kidney tissues of harp seal and hooded seal, whereas an extraordinary mobilisation seemed to take place at hepatic mercury concentrations exceeding 50 microg/g w.w. The mean concentrations of lead in muscles in the present study were higher than in fish and other seafood products from the Barents Sea. The lead concentrations from the present study were lower than levels reported in the 1985 study. However, the levels of the non-essential elements analysed in muscle from the two seal species in the present study should not prevent the use of seal meat in human nutrition.


Asunto(s)
Contaminación de Alimentos , Metales Pesados/análisis , Phocidae , Contaminantes Químicos del Agua/análisis , Animales , Monitoreo del Ambiente , Femenino , Riñón/química , Hígado/química , Músculos/química , Océanos y Mares
10.
J Assoc Nurses AIDS Care ; 27(3): 234-9, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27086187

RESUMEN

The move to integrate HIV treatment and care into primary care is a major obstacle for the current U.S. health care workforce. Many HIV specialty providers will soon retire, while few primary care clinicians have been adequately trained in the diagnosis, care, and treatment of people living with HIV. The Health Resources and Services Administration (HRSA) has supported the development of a Doctor of Nursing Practice (DNP) program with an HIV specialty at Rutgers, the State University of New Jersey, to assure successful transition to an HIV primary care workforce. The Rutgers School of Nursing has been at the forefront of the DNP education movement and is among the first to develop an HIV-focused DNP program. Thirty-seven students have enrolled in the 3-year program, and two have graduated from the first cohort. Here we discuss the planning, implementation, successes, and recommendations of the new program.


Asunto(s)
Enfermería de Práctica Avanzada/educación , Competencia Clínica , Atención a la Salud , Educación de Postgrado en Enfermería , Modelos Educacionales , Desarrollo de Programa , Competencia Clínica/normas , Curriculum/normas , Infecciones por VIH/enfermería , Humanos , New Jersey , Rol de la Enfermera , Atención Primaria de Salud , Recursos Humanos
11.
Lipids ; 37(10): 935-40, 2002 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-12530551

RESUMEN

Long-chain n-3 PUFA in fish oil have modulating effects on inflammatory responses. The aim of this open pilot study was to investigate whether duodenal seal oil administration would benefit patients with inflammatory bowel disease (IBD). Seal oil (10 mL) was administered three times a day directly into the distal part of the duodenum via a nasoduodenal feeding tube for 10 d in 10 patients, 5 of whom had Crohn's disease and 5 ulcerative colitis. Nine of the 10 patients suffered from IBD-associated joint pain. Various parameters of disease activity and FA incorporation in tissues were analyzed before and after treatment. Following seal oil therapy, joint pain index, disease activity, and serum cholesterol level were significantly decreased, whereas the n-3 to n-6 ratio both in intestinal biopsies and blood was significantly increased. Measures of calprotectin concentration in gut lavage fluid, intestinal permeability, and lipid peroxidation were not significantly changed. The results suggest positive effects of seal oil in patients with IBD, especially on IBD-associated joint pain. Further controlled studies are warranted.


Asunto(s)
Duodeno/metabolismo , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Aceites/administración & dosificación , Aceites/uso terapéutico , Phocidae , Administración Oral , Animales , Artralgia/tratamiento farmacológico , Enfermedad Crónica , Colitis/tratamiento farmacológico , Enfermedad de Crohn/tratamiento farmacológico , Duodeno/efectos de los fármacos , Ácidos Grasos Insaturados/sangre , Femenino , Humanos , Enfermedades Inflamatorias del Intestino/sangre , Estudios Longitudinales , Masculino , Aceites/química , Aceites/farmacología
12.
Glob Adv Health Med ; 3(5): 8-15, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25568819

RESUMEN

BACKGROUND: There is abundant evidence of the affordable, life-saving interventions effective at the local primary health care level in low- and middle-income countries (LMICs). However, the understanding of how to deliver those interventions in diverse settings is limited. Primary healthcare services implementation research is needed to elucidate the contextual factors that can influence the outcomes of interventions, especially at the local level. US universities commonly collaborate with LMIC universities, communities, and health system partners for health services research but common barriers exist. Current challenges include the capacity to establish an ongoing presence in local settings in order to facilitate close collaboration and communication. The Peace Corps is an established development organization currently aligned with local health services in many LMICs and is well-positioned to facilitate research partnerships. This article explores the potential of a community-Peace Corps-academic partnership approach to conduct local primary healthcare services implementation research. DISCUSSION: The Peace Corps is well positioned to offer insights into local contextual factors because volunteers work closely with local leaders, have extensive trust within local communities, and have an ongoing, constant, well-integrated presence. However, the Peace Corps does not routinely conduct primary healthcare services implementation research. Universities, within the United States and locally, could benefit from the established resources and trust of the Peace Corps to conduct health services implementation research to advance access to local health services and further the knowledge of real world application of local health services in a diversity of settings. The proposed partnership would consist of (1) a local community advisory board and local health system leaders, (2) Peace Corps volunteers, and (3) a US-LMIC academic institutional collaboration. Within the proposed partnership approach, the contributions of each partner are as follows: the local community and health system leadership guides the work in consideration of local priorities and context; the Peace Corps provides logistical support, community expertise, and local trust; and the academic institutions offer professional technical and public health educational and training resources and research support. CONCLUSION: The Peace Corps offers the opportunity to enhance a community-academic partnership in LMICs through community-level guidance, logistical assistance, and research support for community based participatory primary health-care services implementation research that addresses local primary healthcare priorities.

13.
Rev. latinoam. enferm. (Online) ; 27: e3135, 2019. tab, graf
Artículo en Portugués | LILACS, BDENF - enfermagem (Brasil) | ID: biblio-1004248

RESUMEN

Objetivos este estudo de caso-controle comparou os níveis de estresse e carga alostática (CA) entre mulheres mexicanas nos EUA ( n = 19) e no México ( n = 40). Método medidas de estresse incluíram a Escala de Estresse Percebido (EEP) e a Escala de Estresse Social das Mulheres Hispânicas (EESMH). Uma medida composta por 8 indicadores de CA (pressão arterial sistólica e diastólica, índice de massa corporal (IMC), relação cintura-quadril, colesterol total, hemoglobina glicada (hemoglobina A1C), triglicerídeos e proteína C-reativa) foi calculada. Resultados não houve diferenças significativas entre os grupos na CA entre mulheres mexicanas imigrantes e não imigrantes ( t = 1,55, p = 0,126). Uma análise fatorial de componentes principais foi realizada nos 8 indicadores de CA; uma solução de 2 fatores explicou 57% da variância. As diferenças entre grupo nos dois fatores CA foram analisadas usando MANOVA. O IMC e a relação cintura-quadril foram menores, mas a pressão arterial e os triglicerídeos foram maiores no grupo dos EUA e foram mediados pelo tempo nos EUA. O maior estresse de aculturação foi significativamente relacionado ao aumento da relação cintura-quadril ( r = 0,57, p = 0,02). Considerações finais os resultados sugerem que algumas medidas de CA aumentam com o tempo nos EUA e o estresse de aculturação pode ser um fator significativo.


Objectives this case-control study compared levels of stress and allostatic load (AL) among Mexican women in the US ( n =19) and Mexico ( n = 40). Method measures of stress included the Perceived Stress Scale (PSS) and the Hispanic Women's Social Stressor Scale (HWSSS). A composite measure of 8 indicators of AL (systolic and diastolic blood pressure, body mass index (BMI), waist-to-hip ratio, total cholesterol, glycated hemoglobin (hemoglobin A1C), triglycerides and C-reactive protein) was calculated. Results there were no significant group differences in AL between Mexican and Mexican immigrant women ( t = 1.55, p = .126). A principal component factor analysis was conducted on the 8 AL indicators; a 2-factor solution explained 57% of the variance. Group differences in the two AL factors were analyzed using MANOVA. BMI and waist-to-hip ratios were lower, but blood pressure and triglycerides were higher in the US group and were mediated by time in the US. Greater acculturation stress was significantly related to increased waist-to-hip ratio ( r = .57, p = .02). Final remarks findings suggest some measures of AL increased with time in the US, and acculturation stress may be a significant factor.


Objetivos este estudio de casos y controles ha comparado los niveles de estrés y carga alostática (CA) en mujeres mexicanas en los EE.UU. ( n = 19) y México ( n = 40). Método las medidas de estrés incluyeron la Escala de Estrés Percibido (EEP) y la Escala de Estrés Social de las Mujeres Hispanas (HWSSS, por sus siglas en inglés). Se calculó una medida compuesta de 8 indicadores de CA (presión arterial sistólica, presión arterial diastólica, índice de masa corporal (IMC), relación cintura/cadera, colesterol total, hemoglobina glicosilada (HbA1c), triglicéridos, y proteína C reactiva). Resultados no hubo diferencias significativas de CA entre los grupos de mujeres mexicanas e inmigrantes mexicanas ( t = 1,55, p = 0,126). Se realizó un análisis factorial de componente principal de los 8 indicadores de CA; una solución de 2 factores explicó el 57% de la varianza. Las diferencias de grupo en los dos factores de CA se analizaron utilizando MANOVA. El IMC y la relación cintura/cadera disminuyeron, pero la presión arterial y los triglicéridos aumentaron en el grupo de los EE.UU. y estuvieron influenciados por el tiempo de residencia en los EE.UU. Un mayor estrés aculturativo se relacionó significativamente con el aumento de la relación cintura/cadera (r = 0,57, p = 0,02). Comentarios finales los hallazgos sugieren que algunas medidas de CA aumentan con el tiempo de residencia en los EE.UU. y el estrés aculturativo puede ser un factor importante.


Asunto(s)
Humanos , Síndrome Metabólico/diagnóstico , Emigrantes e Inmigrantes/estadística & datos numéricos , Manejo de la Obesidad/organización & administración , Alostasis/inmunología , Aculturación/historia
14.
Exp Neurol ; 215(1): 160-6, 2009 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19000674

RESUMEN

Whether differences in diet composition may influence demyelinating diseases remains controversial. The aim of this study was to analyse if diets with a different composition of polyunsaturated fatty acids (PUFAs) could influence demyelination and remyelination in cuprizone fed mice, a widely used animal model for de- and remyelination. C57Bl/6 mice were fed with 0.2% cuprizone on three different diets. The diets consisted of the same ingredients, except the lipid source, which came from 1) salmon fillets rich in marine n-3 polyunsaturated fatty acids (PUFAs), 2) cod liver oil rich in marine n-3 PUFAs, or 3) a control diet containing soybean oil rich in n-6 PUFAs. After 5 weeks of cuprizone treatment, the mice given salmon-cuprizone had significantly less hyperintense lesion volume on brain magnetic resonance imaging (MRI) than the two other groups (P<0.0005). After 6 weeks of cuprizone treatment, the salmon-cuprizone group had less demyelination in the corpus callosum, as measured with luxol fast blue (LFB) (P<0.0005) and anti-proteolipid protein (PLP) (P=0.014). The salmon-cuprizone group also had enhanced remyelination compared to the cod liver oil-cuprizone group (LFB; P=0.003, PLP; P=0.018). This study indicates that a fish rich diet may offer a protective role in demyelination. The source of N-3 PUFAs, or other components in the fish, may be important, as no effect of a cod liver oil based diet was observed. This may be of importance related to the discrepant results in dietary intervention studies for demyelinating diseases.


Asunto(s)
Cuprizona , Enfermedades Desmielinizantes/inducido químicamente , Enfermedades Desmielinizantes/dietoterapia , Ácidos Grasos Insaturados/administración & dosificación , Animales , Antígenos de Diferenciación/metabolismo , Cuerpo Calloso/patología , Cuerpo Calloso/fisiopatología , Enfermedades Desmielinizantes/patología , Modelos Animales de Enfermedad , Femenino , Proteína Ácida Fibrilar de la Glía/metabolismo , Indoles , Inyecciones Intravenosas/métodos , Imagen por Resonancia Magnética/métodos , Ratones , Ratones Endogámicos C57BL , Proteína Proteolipídica de la Mielina/metabolismo , Recuperación de la Función/fisiología , Estadísticas no Paramétricas
15.
Clin Nutr ; 28(1): 83-7, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19042061

RESUMEN

BACKGROUND & AIMS: Although many patients with multiple sclerosis (MS) use special diets, the data available at present are insufficient to assess any potential benefit of diet modification. Cuprizone induced demyelination is a commonly used animal model for demyelination in the central nervous system. METHODS: The present study was designed to analyse behaviour and activity due to demyelination in mice fed with 0.2% cuprizone on three different diets. The diets consisted of (1) salmon fillets rich in marine n-3 polyunsaturated fatty acids (PUFAs), (2) cod liver oil rich in marine n-3 PUFAs, or (3) a control diet containing soybean oil rich in n-6 PUFAs. After 5 weeks of continuous cuprizone treatment, animal activity was assessed with the elevated plus maze (EPM) test. After 6 weeks the brains were fixated in paraformaldehyde and stained with luxol fast blue (LFB). RESULTS: There was significantly less demyelination in the salmon-cuprizone group than in the two other cuprizone-treatment groups (P<0.0005). The salmon-cuprizone mice had less weight loss (P<0.001) and showed more visits in both open and closed arms of the elevated plus maze than the other cuprizone-treated groups (P<0.0001). In addition they had more entries in the open arms than both the cod liver oil-cuprizone (P<0.02) and the soybean oil-cuprizone-treated mice (P<0.0001). CONCLUSIONS: A diet containing salmon seems to protect against behavioural changes induced by demyelination in the cuprizone model, indicating that a fish diet could have a protective effect in demyelinating diseases.


Asunto(s)
Conducta Animal/efectos de los fármacos , Enfermedades Desmielinizantes/prevención & control , Enfermedades Desmielinizantes/fisiopatología , Ácidos Grasos Omega-3/administración & dosificación , Salmón , Animales , Conducta Animal/fisiología , Encéfalo/efectos de los fármacos , Encéfalo/patología , Aceite de Hígado de Bacalao , Cuprizona/toxicidad , Enfermedades Desmielinizantes/inducido químicamente , Enfermedades Desmielinizantes/patología , Modelos Animales de Enfermedad , Ácidos Grasos Omega-3/farmacología , Femenino , Inmunohistoquímica , Ratones , Ratones Endogámicos C57BL , Distribución Aleatoria , Alimentos Marinos , Aceite de Soja
16.
J Rheumatol ; 33(2): 307-10, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16465662

RESUMEN

OBJECTIVE: To investigate effects of short-term oral treatment with seal oil in patients with psoriatic arthritis (PsA). METHODS: Forty-three patients with polyarticular PsA were randomized to receive oral treatment for 2 weeks with either seal oil or soy oil in a double blind controlled trial. Clinical and biochemical variables were assessed at baseline, after treatment, and 4 weeks post-treatment. Patients were allowed to continue nonsteroidal antiinflammatory drugs (NSAID) and disease modifying antirheumatic drugs (DMARD) during the study. RESULTS: Forty patients completed the study, 20 in each treatment group. Patients in the seal oil group reported a significant improvement in global assessment of the disease 4 weeks post- treatment (p < 0.01), and both groups showed a trend toward improvement in tender joint count, but the differences between the groups were not significant. There was a fall in the ratio of n-6 to n-3 fatty acids and in arachidonic acid (AA) to eicosapentaenoic acid (EPA) in serum after treatment with seal oil (p < 0.01). Twenty-one percent of all patients had elevated values of calprotectin in feces suggestive of asymptomatic colitis. CONCLUSION: Treatment with seal oil was followed by a modest improvement in patient's global assessment of the disease and a trend towards a decrease in number of tender joints. There was a shift in fatty acid composition in serum toward a putative antiinflammatory profile. Oral treatment with seal oil may have NSAID-like effects in PsA.


Asunto(s)
Artritis Psoriásica/terapia , Phocidae , Aceite de Soja/administración & dosificación , Administración Oral , Antiinflamatorios no Esteroideos/uso terapéutico , Antirreumáticos/uso terapéutico , Artritis Psoriásica/fisiopatología , Método Doble Ciego , Quimioterapia Combinada , Estado de Salud , Humanos , Proyectos Piloto , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
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