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Cutaneous leishmaniasis (CL), a neglected tropical disease, is a major public health concern in Yemen, with Leishmania tropica identified as the main causative agent. This study aims to investigate the occurrence and distribution of Leishmania parasites in domestic and wild animals in CL endemic areas in the western highlands of Yemen. A cross-sectional study was conducted in the Utmah District of western Yemen. Blood and skin scraping specimens were collected from 122 domestic and wild animals and tested for the Leishmania DNA using internal transcribed spacer 1 (ITS1) nested polymerase chain reaction. Phylogenetic analyses were performed on 20 L. tropica sequences obtained from animals in this study and 34 sequences from human isolates (collected concurrently from the same study area) retrieved from the GenBank. Overall, L. tropica was detected in 16.4% (20/122) of the examined animals, including 11 goats, two dogs, two bulls, one cow, one donkey, one rabbit, one rat and one bat. None of the examined cats and sheep was positive. The animal sequences were segregated into four different L. tropica haplotypes, with the majority of the animal (15/20) and human (32/34) sequences composed of one dominant haplotype/genotype. These findings represent the first confirmed evidence of natural L. tropica infections in different kinds of domestic and wild animals in western Yemen, suggesting these animals potentially have a role in the transmission of CL in Yemen. Therefore, a One Health approach is required for the effective prevention and control of this devastating disease among endemic populations.
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Animais Domésticos , Animais Selvagens , Leishmania tropica , Leishmaniose Cutânea , Saúde Única , Filogenia , Animais , Leishmania tropica/genética , Leishmania tropica/isolamento & purificação , Leishmania tropica/classificação , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/veterinária , Leishmaniose Cutânea/parasitologia , Iêmen/epidemiologia , Humanos , Estudos Transversais , Animais Selvagens/parasitologia , Animais Domésticos/parasitologia , DNA de Protozoário/genética , Doenças Negligenciadas/parasitologia , Doenças Negligenciadas/epidemiologia , Doenças Negligenciadas/veterinária , Doenças Endêmicas/veterinária , DNA Espaçador Ribossômico/genética , Reação em Cadeia da Polimerase/veterinária , Análise de Sequência de DNA , MasculinoRESUMO
BACKGROUND: Toxoplasmosis is a common and serious parasitic infection caused by the ubiquitous obligatory intracellular protozoan organism, Toxoplasma gondii. Although infection with T. gondii is usually asymptomatic in healthy individuals, it can lead to severe pathological effects in congenital cases and immunocompromised patients. This study aimed to determine the seroprevalence of T. gondii and its predictors among pregnant women seeking prenatal and medical care at the general maternal and child health facility in Dhamar district of Dhamar governorate, Yemen. METHODS: A total of 420 pregnant women were randomly selected for this cross-sectional study. Participants were screened for anti-T. gondii antibodies (i.e. immunoglobulin M; IgM and immunoglobulin G; IgG) using electrochemiluminescence immunoassay. Demographic, socioeconomic, obstetric and behavioural data were collected using a pretested questionnaire via face-to-face interview. Univariate and multivariate analyses were used to identify the independent predictors of T. gondii seroprevalence. RESULTS: The overall seroprevalence of anti-T. gondii antibodies (IgG and/or IgM) among the participants was 21.2% (89/420; 95% CI = 17.3-25.1). Anti-T. gondii IgG antibodies were detected in 20.0% (84/420) of the women of which 12.9% (54/420) were positive for only IgG and 7.1% (30/420) were positive for both IgG and IgM antibodies. Moreover, 5 women (1.2%) were reactive only for IgM antibodies. Significant associations between T. gondii seroprevalence and history of spontaneous abortion (P < 0.001), raw vegetables consumption (P = 0.036), and presence of cats in household (P = 0.049) were reported. Multivariate analysis confirmed that history of spontaneous abortion (AOR = 4.04; 95% CI = [2.46, 6.63]) and presence of cats in household (AOR = 1.77; 95% CI = [1.02, 3.07]) are significant predictors of T. gondii seroprevalence among the studied participants. CONCLUSION: The study found a high seroprevalence (21.2%) of T. gondii infection during pregnancy in Dhamar district, which is significantly associated with adverse pregnancy outcomes. The provision of adequate maternal healthcare and health education pertaining to the prevention of T. gondii infection is therefore imperative to curtail the prevalence of infection among the studied population.
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Complicações Parasitárias na Gravidez/epidemiologia , Toxoplasma/imunologia , Toxoplasmose/epidemiologia , Aborto Espontâneo , Adolescente , Adulto , Animais , Anticorpos Antiprotozoários/análise , Estudos Transversais , Feminino , Educação em Saúde , Humanos , Hospedeiro Imunocomprometido , Imunoglobulina G/análise , Imunoglobulina M/análise , Pessoa de Meia-Idade , Análise Multivariada , Animais de Estimação , Gravidez , Prevalência , Alimentos Crus , Fatores de Risco , Estudos Soroepidemiológicos , Inquéritos e Questionários , Iêmen/epidemiologia , Adulto JovemRESUMO
OBJECTIVES: To investigate the molecular epidemiology of Entamoeba histolytica, E. dispar and E. moshkovskii infections among rural communities in Yemen. METHODS: In a community-based study, faecal samples were collected from 605 participants and examined by wet mount, formalin-ether sedimentation, trichrome staining and nested multiplex PCR techniques. Demographic, socio-economic and environmental information was collected using a pre-tested questionnaire. RESULTS: Overall, 324 (53.6%) of the samples were positive for Entamoeba cysts and/or trophozoites by microscopic examination. Molecular analysis revealed that 20.2%, 15.7% and 18.2% of the samples were positive for E. histolytica, E. dispar and E. moshkovskii, respectively. Multivariate analysis showed different sets of species-specific risk factors among these communities. Educational level was identified as the significant risk factor for E. histolytica; age and gender were the significant risk factors for E. moshkovskii; and sources of drinking water and consumption of unwashed vegetables were the significant risk factors for E. dispar. Moreover, living in coastal/foothill areas and presence of other infected family members were risk factors for both E. histolytica and E. moshkovskii infections. CONCLUSION: The study reveals that Entamoeba spp. infection is highly prevalent among rural communities in Yemen, with E. histolytica, E. dispar and E. moshkovskii differentiated for the first time. Identifying and treating infected family members, providing health education pertinent to good personal and food hygiene practices and providing clean drinking water should be considered in developing a strategy to control intestinal parasitic infections in these communities, particularly in the coastal/foothill areas of the country.
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Entamoeba/crescimento & desenvolvimento , Entamebíase/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Criança , Pré-Escolar , Água Potável/parasitologia , Entamoeba/genética , Entamoeba histolytica/genética , Entamebíase/epidemiologia , Entamebíase/parasitologia , Fezes/parasitologia , Feminino , Humanos , Higiene , Lactente , Masculino , Pessoa de Meia-Idade , Epidemiologia Molecular , Reação em Cadeia da Polimerase/métodos , Fatores de Risco , Fatores Socioeconômicos , Iêmen , Adulto JovemRESUMO
Cutaneous leishmaniasis (CL), a neglected tropical disease (NTD), is a major public health problem in Yemen with widespread distribution in rural areas. Evaluating the knowledge and understanding of people's beliefs towards the disease is essential to the implementation of effective control measures. This study aims to assess the knowledge, attitudes, practices (KAP) and treatment-seeking behaviour concerning CL among rural populations in the western highlands of Yemen. A community-based cross-sectional study was conducted among 289 household heads in four rural areas of the Utmah District. Data were collected using a pre-tested questionnaire. All the participants had heard about the disease; however, only 9.3% attributed it to sandflies. Nearly half (48.1%) of the participants could not mention any preventive measures for CL, and nearly two-thirds (65.4%) could not do so for sandflies. The overall 'good' knowledge about CL was found to be 51.2%, and it was 33.9% for sandflies. The participants' attitude and prevention practices towards CL were not satisfactory, as only 38.1% and 16.3% had a positive attitude and good CL-related prevention practices, respectively. Moreover, 45.7% believed CL to be a stigmatising disease, and 50% had used traditional remedies to treat suspected CL lesions. Multivariate analyses showed that age, sex, presence of CL-confirmed cases in the same household, residency, occupation and monthly household income were the significant predictors associated with KAP concerning CL among the participants. The findings support an urgent need for integrated health education and community mobilisation interventions to improve awareness of these vulnerable populations about this devastating disease.
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Conhecimentos, Atitudes e Prática em Saúde , Leishmaniose Cutânea , População Rural , Humanos , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/psicologia , Leishmaniose Cutânea/prevenção & controle , Iêmen/epidemiologia , Feminino , Masculino , Adulto , Estudos Transversais , Pessoa de Meia-Idade , Inquéritos e Questionários , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Adulto Jovem , Adolescente , Doenças EndêmicasRESUMO
BACKGROUND: Cutaneous leishmaniasis (CL) is a major health problem in Yemen and is endemic in many rural areas across the country. METHODS: A community-based cross-sectional survey followed by unmatched case-control comparisons was conducted among 612 participants in Utmah district, western Yemen. A total of 223 participants were included in the case-control analysis to identify the significant risk factors. Skin scrapping samples were examined by microscopy and internal transcribed spacer 1 nested polymerase chain reaction. RESULTS: Overall, 33% (202/612) of the participants had active skin lesions and/or scars that met the clinical criteria for CL. A total of 90 (14.7%) participants had suspected active CL lesions; however, a prevalence of 8.7% (53/612) was obtained based on molecular and parasitological examination, with Leishmania tropica being the only causative agent identified. Multivariable logistic regression analyses showed that being ≤10 y old, being female, living in houses with cracked walls, living in the presence of other family members with typical ulcerating skin diseases and sleeping outside were factors significantly associated with an increased likelihood of having CL. Moreover, keeping livestock on the ground floor of the house was significantly associated with a decreased likelihood of having CL. CONCLUSION: The study reveals an alarmingly high prevalence of CL among the studied population. Therefore there is an urgent need for effective control measures and improved treatment efforts against this devastating disease.
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Leishmaniose Cutânea , População Rural , Humanos , Feminino , Masculino , Iêmen/epidemiologia , Prevalência , Estudos Transversais , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/diagnóstico , Fatores de Risco , Doenças NegligenciadasRESUMO
Soil-transmitted helminthiasis (STH), among the most common neglected tropical diseases, is a major public health problem in Malaysia with a possible impact on the nutritional status and school participation of rural children. This study was carried out among Aboriginal schoolchildren, living in an endemic area for STH in Malaysia, to determine the possible relationship between intestinal helminthiasis and school absenteeism. We also evaluated whether successful treatment of the infection will affect school attendance among the subjects. Stool analysis revealed that more than 90% of the subjects were infected with at least 1 helminth species, with Ascaris lumbricoides and Trichuris trichiura infections being most prevalent. Infection of moderate-to-heavy worm burdens, low level of fathers' education and anaemia were identified as the significant predictors of high absenteeism among the subjects (P<0·05). Following treatment of the infected children, it was found that school absenteeism was reduced significantly (P<0·01). In conclusion, STH continues to have significant impacts on public health, particularly in rural communities with a negatively significant effect on the school participation of Aboriginal children. A school-based de-worming programme should be introduced and incorporated in the current educational assistance targeted towards the Aboriginal communities, under the auspices of the government.
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Absenteísmo , Helmintíase/epidemiologia , Enteropatias/epidemiologia , População Rural , Instituições Acadêmicas , Solo/parasitologia , Estudantes , Adolescente , Animais , Ascaríase/epidemiologia , Ascaríase/parasitologia , Ascaríase/prevenção & controle , Ascaríase/transmissão , Criança , Fezes/parasitologia , Feminino , Helmintíase/parasitologia , Helmintíase/prevenção & controle , Helmintíase/transmissão , Helmintos , Infecções por Uncinaria/epidemiologia , Infecções por Uncinaria/parasitologia , Infecções por Uncinaria/prevenção & controle , Infecções por Uncinaria/transmissão , Humanos , Enteropatias/parasitologia , Enteropatias/prevenção & controle , Enteropatias Parasitárias , Malásia/epidemiologia , Masculino , Estado Nutricional , Recidiva , Tricuríase/epidemiologia , Tricuríase/parasitologia , Tricuríase/prevenção & controle , Tricuríase/transmissãoRESUMO
Enterobiasis is a highly infectious parasitic disease spreading worldwide including Yemen. Therefore, this study aimed to investigate the prevalence and risk factors of enterobiasis among Yemeni children in Dhamar governorate. A total of 402 children (aged 1-12 years) participated in this cross-sectional survey carried out at Thamar University Al-Wahdah Teaching Hospital (TUWTH), between 2018 and 2019. Enterobius vermicularis infection was examined using the adhesive tape technique. Association between risk factors and enterobiasis were measured by prevalence ratio (PR). The overall prevalence of enterobiasis was found to be 29.4% (118/402). Risk factors that showed independent association with the infection were child's care responsibility (PR = 1.90; 95% CI = 1.37-2.63; P = 0.001); irregular washing hands before meals (PR = 2.01; 95% CI = 1.32-3.05; P = 0.003); habit of nail biting or cutting by teeth (PR = 1.61; 95% CI = 1.18-2.21; P = 0.002); habit of putting toys or pen in mouth (PR = 1.58; 95% CI = 1.19-2.10; P = 0.002); frequent anal itching (PR = 1.46; 95% CI = 1.10-1.93; P = 0.016); using anthelmintic during the last six months (PR = 1.68; 95% CI = 1.20-2.36; P = 0.011); and parents have no knowledge on preventive measures (PR = 1.62; 95% CI = 1.04-2.53; P = 0.036). Prevalence of enterobiasis among Yemeni children in Dhamar governorate is high with higher infection rate among those aged 1-6 years. Health education and mass treatment are highly recommended among this poor population.
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BACKGROUND: Despite continuous efforts by the government and private sectors, malaria is still a public health problem in rural Peninsular Malaysia. This study investigated household knowledge, attitude and practices (KAP) regarding malaria in two malaria endemic communities, forest-aboriginal and rural communities, in the Lipis district of Pahang state, Malaysia. METHODS: A descriptive cross-sectional study with a semi-structured questionnaire was carried out among 100 and 123 households from forest-aboriginal and rural areas, respectively. RESULTS: Knowledge about malaria and its transmission is significantly higher among the rural participants than the aborigines (86.2% vs 76%, p < 0.01). However, use of medicinal plants and beliefs in witchcraft and sorcery in treating febrile diseases were significantly higher among the aboriginal population (p < 0.01). There were no significant differences between the two communities in terms of the knowledge about malaria symptoms, attitudes towards its severity and practices in preventive measures against malaria by using mosquito bed nets. However, the knowledge and practice of different preventive measures to combat malaria, such as insecticide and the elimination of breeding areas, was significantly higher among the rural population than the aborigines (p < 0.001). CONCLUSIONS: Both communities were aware of malaria as a disease, but knowledge, attitudes and practices were inadequate. Providing efficient health education to people residing in malaria endemic areas would improve their understanding about malaria prevention in order to bring about the elimination of malaria from the country.
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Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Malária/prevenção & controle , Controle de Mosquitos/métodos , Aceitação pelo Paciente de Cuidados de Saúde , Adolescente , Adulto , Comparação Transcultural , Estudos Transversais , Características da Família , Feminino , Humanos , Malária/epidemiologia , Malária/etnologia , Malária/transmissão , Malásia , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico/etnologia , População Rural , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto JovemRESUMO
The methanolic extract of Languas galanga rhizomes was investigated for antimalarial activity against Plasmodium berghei (NK65) infections in mice. The median lethal dose was determined to ascertain the safety of the extract in ICR mice of both sexes. The antimalarial activities during early and established infections, as well as the prophylactic activity were evaluated. Phytochemical screening and radical scavenging activity of the extract were also investigated to elucidate the possible mechanism of the antimalarial properties. The acute oral toxicity (LD50) of Languas galanga extract in mice was established to be 4.998 mg/kg. The extract of Languas galanga rhizomes demonstrated significant antiplasmodial activity in all the three models of the antimalarial evaluations. Phytochemical screening revealed the presence of some vital antiplasmodial constituents such as terpenoids and flavonoids. The extract also exhibited a moderate capacity to scavenge the free radicals. The rhizome extract of Languas galanga thus possesses antimalarial activity, which explains the rational usage of this plant in traditional Malaysian medicine.
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Alpinia/química , Antimaláricos/química , Antimaláricos/uso terapêutico , Malária/tratamento farmacológico , Metanol/química , Extratos Vegetais/química , Extratos Vegetais/uso terapêutico , Animais , Antimaláricos/toxicidade , Compostos de Bifenilo/química , Feminino , Dose Letal Mediana , Masculino , Camundongos , Camundongos Endogâmicos ICR , Picratos/química , Plasmodium berghei , Rizoma/químicaRESUMO
The need for new compounds active against malaria parasites is made more urgent by the rapid spread of drug-resistance to available antimalarial drugs. The crude methanol extract of Piper betle leaves (50-400 mg/kg) was investigated for its antimalarial activity against Plasmodium berghei (NK65) during early and established infections. The phytochemical and antioxidant potentials of the crude extract were evaluated to elucidate the possibilities of its antimalarial effects. The safety of the extract was also investigated in ICR mice of both sexes by the acute oral toxicity limit test. The leaf extract demonstrated significant (P < 0.05) schizonticidal activity in all three antimalarial evaluation models. Phytochemical screening showed that the leaf extract contains some vital antiplasmodial chemical constituents. The extract also exhibited a potent ability to scavenge the free radicals. The results of acute toxicity showed that the methanol extract of Piper betle leaves is toxicologically safe by oral administration. The results suggest that the Malaysian folklorical medicinal application of the extract of Piper betle leaf has a pharmacological basis.
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Antimaláricos/farmacologia , Metanol/química , Piper/química , Extratos Vegetais/farmacologia , Plasmodium berghei/efeitos dos fármacos , Animais , Feminino , Masculino , CamundongosRESUMO
PURPOSE: Gestational diabetes mellitus (GDM) continues to be a significant health disorder triggering harmful complications in pregnant women and fetuses. Our knowledge of GDM epidemiology in Yemen is largely based on very limited data. The aim of this study was, therefore, to determine the prevalence and risk factors of GDM among pregnant women in Dhamar governorate, Yemen. PATIENTS AND METHODS: A total of 311 subjects were randomly selected for this cross sectional survey. Health history data and blood samples were collected using a pretested questionnaire. To determine the prevalence of GDM, the fasting and random blood glucose techniques were applied according to the recommendations of the American Diabetes Association, using alternative methods that are more convenient to the targeted population. Poisson's regression model incorporating robust sandwich variance was utilized to assess the association of potential risk factors in developing GDM. RESULTS: The prevalence of GDM was found to be 5.1% among the study population. Multivariate analysis confirmed age ≥30 years, previous GDM, family history of diabetes, and history of polycystic ovary syndrome as independent risk factors for GDM prevalence. However, body mass index ≥30 kg/m(2) and previous macrosomic baby were found to be dependent risk factors. CONCLUSION: This study reports new epidemiological information about the prevalence and risk factors of GDM in Yemen. Introduction of proper maternal and neonatal medical care and health education are important in order to save the mother and the baby.
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OBJECTIVE: To determine the prevalence of the filarial parasites,ie.,Brugia malayi, Brugia, Brugia pahangi(B. pahangi), Dirofilaria immitisandDirofilaria repens (D. repens) in domestic and stray cats. METHODS: A total of 170 blood sample were collected from domestic and stray cats and examined for filarial worm parasites in two localities, Pulau Carey and Bukit Gasing, Selangor State, Malaysia. RESULTS: The overall prevalence of infection was 23.5% (40/170; 95% CI = 17.4-30.6). Of this, 35% (14/40; 95% CI = 22.1-50.5) and 50% (20/40; 95% CI = 35.2-64.8) were positive for single B. pahangi nd D. repens, respectively. The remaining of 15% (6/40; 95% CI = 7.1-29.1) were positive for mixed B. pahangi and D. repens. In addition, 75% of the infected cats were domestic, and 25% were strays. No Brugia malayi and Dirofilaria immitis was detected. Eighty-four cats were captured at Pulau Carey, of which 35.7% (30/84) were infected. Among the cats determined to be infected, 93% (28/30; 95% CI = 78.7-98.2) were domestic, and only 6.7% (2/30; 95% CI = 19.0-21.3) were strays. Conversely, the number of infected cats was three times lower in Bukit Gasing than in Pulau Carey, and most of the cats were stray. CONCLUSIONS: B. pahangi and D. repens could be the major parasites underlying filariasis in the study area. Adequate prophylactic plans should be administrated in the cat population in study area.
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BACKGROUND: Lymphatic filariasis (LF) is a major cause of permanent disability in many tropical and sub-tropical countries of the world. Malaysia is one of the countries in which LF is an endemic disease. Five rounds of the mass drug administration (MDA) program have been conducted in Malaysia as part of the Global Program to Eliminate Lymphatic Filariasis (GPELF) by year 2020. This study investigated the level of awareness of LF and the MDA program in a population living in an endemic area of the country. METHODS: A descriptive cross-sectional survey that involved 230 respondents (≥15 years old) living in the LF endemic communities of Terengganu state in Peninsular Malaysia was performed. Demographic, socioeconomic, and knowledge, attitudes and practices (KAP) data of the respondents were obtained using pre-tested questionnaires and were analyzed using SPSS software version 13.0. RESULTS: More than 80% of the respondents were aware of LF and the common symptoms of the disease. Moreover, about 70% of the respondents that were aware of LF indicated that it is a problematic disease. Approximately 77% of the respondents indicated that filariasis is transmitted by mosquitoes. Two-thirds of respondents preferred hospital treatment for illness; however, only 12% had participated and/or received treatment for LF during an MDA program. Only 35% of the respondents that participated in this research were aware of the MDA program that had taken place in the area. None of the respondents had knowledge of the drug used in the treatment of LF. The findings from this research indicated that there was no significant association between LF awareness and with gender, age group, educational status, occupation, or socio-economic status of the respondents (P >0.05). CONCLUSION: A good proportion of the respondents are aware of LF, its mode of transmission and symptoms, however they demonstrated a poor knowledge of MDA which took place in the study area. For greater understanding of LF in the Malaysian population, there is a need for an enhancement in the delivery of health education and information programs and mass mobilization campaigns in endemic communities.
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Filariose Linfática/epidemiologia , Adolescente , Adulto , Animais , Estudos Transversais , Culicidae/parasitologia , Coleta de Dados , Filariose Linfática/tratamento farmacológico , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Insetos Vetores , Malásia/epidemiologia , Masculino , Pessoa de Meia-Idade , Saúde da População Rural , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto JovemRESUMO
Lymphatic filariasis is a parasitic infection that causes a devastating public health and socioeconomic burden with an estimated infection of over 120 million individuals worldwide. The infection is caused by three closely related nematode parasites, namely, Wuchereria bancrofti, Brugia malayi, and B. timori, which are transmitted to human through mosquitoes of Anopheles, Culex, and Aedes genera. The species have many ecological variants and are diversified in terms of their genetic fingerprint. The rapid spread of the disease and the genetic diversification cause the lymphatic filarial parasites to respond differently to diagnostic and therapeutic interventions. This in turn prompts the current challenge encountered in its management. Furthermore, most of the chemical medications used are characterized by adverse side effects. These complications urgently warrant intense prospecting on bio-chemicals that have potent efficacy against either the filarial worms or thier vector. In lieu of this, we presented a review on recent literature that reported the efficacy of filaricidal biochemicals and those employed as vector control agents. In addition, methods used for biochemical extraction, screening procedures, and structure of the bioactive compounds were also presented.
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BACKGROUND: Soil-transmitted helminths (STH) infections, anaemia and malnutrition are major public health problems in school-age children in developing countries. This study was conducted on 289 Orang Asli (aboriginal) schoolchildren in order to assess the current prevalence and predictors of anaemia and malnutrition, as well as the nutritional impacts of STH infections among these children. METHODS: A cross-sectional study was combined with a longitudinal follow-up three months after treatment with anthelminthic drugs. Blood samples were collected from the children to measure haemoglobin (Hb) level. Anthropometric and socioeconomic data were also collected and the children were screened for STH. RESULTS: The baseline findings revealed that the prevalence of anaemia, significant stunting, underweight and wasting among the children were 41.0%, 28.0%, 29.2% and 12.5%, respectively. Overall, the prevalence of trichuriasis, ascariasis and hookworm infections were 84.6%, 47.6% and 3.9%, respectively. Haemoglobin level was significantly lower among the moderate-to-heavy infected children compared to the negative-to-light infected children. Age <10 years and moderate-to-heavy ascariasis were the predictors of anaemia. Stunting was associated with gender, age, moderate-to-heavy ascariasis and trichuriasis. Three months post-treatment assessment showed that the moderate-to-heavy infected children gained significant increment in their mean Hb level compared to the negative-to-light infected children (0.44 g/dL compared to 0.08 g/dL). However, no difference was found in the mean increments in growth indices between the groups. CONCLUSION: STH infections, anaemia and malnutrition are still prevalent and a matter of public health concern in Orang Asli communities in Malaysia. Sustainable deworming programme at school and community levels among these populations will help to improve their health and nutritional status.
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Helmintíase/parasitologia , Estado Nutricional/fisiologia , Solo/parasitologia , Adolescente , Animais , Criança , Estudos Transversais , Feminino , Helmintíase/complicações , Humanos , Malásia/epidemiologia , MasculinoRESUMO
ETHNOPHARMACOLOGICAL RELEVANCE: White flesh extract of Cocos nucifera (coconut) was studied to ascertain the ethnopharmacological standing of its antimalarial usage in Malaysian folk medicine. MATERIALS AND METHODS: The crude methanol extract was investigated for phytochemical constituents and acute oral toxicity. Antimalarial activity of different extract doses of 50, 100, 200 and 400mg/kg were investigated in vivo against Plasmodium berghei (NK65) infections in mice during early, established and residual infections. Chloroquine (20mg/kg) and pyrimethamine (1.2mg/kg) were used as reference drugs. RESULTS: The results revealed that the extract contained some phytochemical constituents and is toxicologically safe by oral administration. The extract significantly reduced the parasitaemia by the 200 and 400mg/kg doses in the all three in vivo assessment assays. However, the extract did not significantly increase the survival time of the infected mice. CONCLUSIONS: The observed pharmacological activities suggest that the Malaysian folkloric medicinal application of Cocos nucifera has a pharmacological basis.
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Antimaláricos/uso terapêutico , Cocos/química , Medicina Tradicional , Extratos Vegetais/uso terapêutico , Animais , Antimaláricos/farmacologia , Relação Dose-Resposta a Droga , Etanol/química , Feminino , Malária/tratamento farmacológico , Malária/parasitologia , Malásia , Masculino , Camundongos , Extratos Vegetais/farmacologia , Plasmodium berghei/efeitos dos fármacosRESUMO
BACKGROUND: Soil-transmitted helminth (STH) infections, among the most common neglected tropical diseases, continue to be a major threat to the health and socioeconomic wellbeing of infected people especially children in developing countries. METHODS: A cross-sectional study among 254 aboriginal schoolchildren was conducted in order to determine the current prevalence and intensity of infections and to investigate the potential risk factors associated with moderate-to-heavy burden of STH infections among these children. RESULTS: Overall, 93.7% of children were found to be infected with one or more STH species. The prevalence of trichuriasis, ascariasis and hookworm infections were 84.6%, 47.6% and 3.9%, respectively. Almost half of the participants had heavy trichuriasis, one-quarter had heavy ascariasis whereas all hookworm infections were light infections. Overall, moderate-to-heavy STH infections accounted for 56.7% of the total infections. Univariate analysis revealed that those using untreated water supply (P = 0.013), living in houses without toilets (P = 0.027) and having domestic animals in the houses (P = 0.044) had significantly higher prevalence of moderate-to-heavy infections than others. Logistic regression analysis confirmed using untreated water for drinking (P = 0.001) and the absence of a toilet in the house (P = 0.003) as significant risk factors of moderate-to-heavy STH infections among these children. CONCLUSION: The high proportion of moderate-to-heavy STH infections further confirms the need for serious attention towards these devastating diseases that has put lives and the future of aboriginal children in jeopardy. Introduction of more poverty alleviation schemes, proper sanitation, provision of clean and safe drinking water, health education, as well as the introduction of periodic school-based deworming programmes are imperative among these communities in order to curtail the transmission and morbidity caused by STH.
Assuntos
Helmintíase/epidemiologia , Adolescente , Animais , Criança , Estudos Transversais , Feminino , Helmintíase/parasitologia , Helmintíase/transmissão , Helmintos/classificação , Helmintos/isolamento & purificação , Humanos , Malásia/epidemiologia , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico , Prevalência , População Rural , Solo/parasitologiaRESUMO
ETHNOPHARMACOLOGICAL RELEVANCE: Various plants species are used in the traditional medicine for the treatment of malaria. This is the first community based ethnobotanical study in Peninsular Malaysia. AIM OF THE STUDY: To investigate the plants traditionally used in the treatment of malaria in Malaysia. MATERIALS AND METHODS: An ethnobotanical survey was carried out among 233 Aboriginal and rural households, and traditional healers in malaria endemic areas in Peninsular Malaysia. Data were collected using a pre-tested questionnaire. RESULTS: Nineteen species belonging to 17 families were identified. Twelve plant species have not previously been documented for the treatment of malaria in Malaysia. CONCLUSIONS: Findings of this study can be used as an ethnopharmacological basis for selecting plants for further anti-malarial phytochemical and pharmaceutical studies.