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Soil-transmitted helminth

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https://www.readbyqxmd.com/read/29211746/review-of-the-factors-influencing-the-motivation-of-community-drug-distributors-towards-the-control-and-elimination-of-neglected-tropical-diseases-ntds
#1
Alison Krentel, Margaret Gyapong, Shruti Mallya, Nana Yaa Boadu, Mary Amuyunzu-Nyamongo, Mariana Stephens, Deborah A McFarland
BACKGROUND: Community drug distributors or neglected tropical disease (NTD) volunteers have played a crucial role in ensuring the success of mass drug administration (MDA) programs using preventive chemotherapy (PC) for lymphatic filariasis, onchocerciasis, schistosomiasis, trachoma and soil transmitted helminths. In recent years however, a noticeable decline in motivation of some of these volunteers has been perceived, potentially negatively impacting the success of these programs. Potential hypotheses for this change in motivation include the long duration of many MDA programs, the change in sociocultural environments as well as the changes to the programs over time...
December 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29207309/polypyridylruthenium-ii-complexes-exert-in-vitro-and-in-vivo-nematocidal-activity-and-show-significant-inhibition-of-parasite-acetylcholinesterases
#2
Madhu Sundaraneedi, Ramon M Eichenberger, Rafid Al-Hallaf, Dai Yang, Javier Sotillo, Siji Rajan, Phurpa Wangchuk, Paul R Giacomin, F Richard Keene, Alex Loukas, J Grant Collins, Mark S Pearson
Over 4.5 billion people are at risk of infection with soil transmitted helminths and there are concerns about the development of resistance to the handful of frontline nematocides in endemic populations. We investigated the anti-nematode efficacy of a series of polypyridylruthenium(II) complexes and showed they were active against L3 and adult stages of Trichuris muris, the rodent homologue of the causative agent of human trichuriasis, T. trichiura. One of the compounds, Rubb12-mono, which was among the most potent in its ability to kill L3 (IC50 = 3...
November 29, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29176840/turning-poop-into-profit-cost-effectiveness-and-soil-transmitted-helminth-infection-risk-associated-with-human-excreta-reuse-in-vietnam
#3
Ngan Tran-Thi, Rachel J Lowe, Janna M Schurer, Tu Vu-Van, Lauren E MacDonald, Phuc Pham-Duc
Human excreta is a low cost source of nutrients vital to plant growth, but also a source of pathogens transmissible to people and animals. We investigated the cost-savings and infection risk of soil transmitted helminths (STHs) in four scenarios where farmers used either inorganic fertilizer or fresh/composted human excreta supplemented by inorganic fertilizer to meet the nutrient requirements of rice paddies in the Red River Delta, Vietnam. Our study included two main components: 1) a risk estimate of STH infection for farmers who handle fresh excreta, determined by systematic review and meta-analysis; and 2) a cost estimate of fertilizing rice paddies, determined by nutrient assessment of excreta, a retailer survey of inorganic fertilizer costs, and a literature review to identify region-specific inputs...
November 27, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29169386/spatiotemporal-distribution-and-population-at-risk-of-soil-transmitted-helminth-infections-following-an-eight-year-school-based-deworming-programme-in-burundi-2007-2014
#4
Mohamad Assoum, Giuseppina Ortu, Maria-Gloria Basáñez, Colleen Lau, Archie C A Clements, Kate Halton, Alan Fenwick, Ricardo J Soares Magalhães
BACKGROUND: Investigating the effect of successive annual deworming rounds on the spatiotemporal distribution of infection prevalence and numbers at risk for soil-transmitted helminths (STHs) can help identify communities nearing elimination and those needing further interventions. In this study, we aim to quantify the impact of an 8-year mass drug administration (MDA) programme (from 2007 to 2014) on the spatiotemporal distribution of prevalence of STH infections and to estimate the number of school-aged children infected with STHs in Burundi...
November 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29168467/temporal-trends-of-intestinal-parasites-in-patients-attending-a-tertiary-care-hospital-in-south-india-a-seven-year-retrospective-analysis
#5
Ira Praharaj, Rajiv Sarkar, Sitara Swarna Rao Ajjampur, Sheela Roy, Gagandeep Kang
BACKGROUND & OBJECTIVES: Intestinal parasitic infections and their associated complications are a major cause of morbidity in the developing world. This retrospective study was done to assess the prevalence of intestinal parasitic infections among patients in a tertiary healthcare setting and to analyze age-, gender- and time-related trends in the prevalence of these intestinal parasites over a seven year period (2006-2012). METHODS: The presence of various intestinal parasites in a tertiary care setting over a seven year period in different age groups was determined by performing routine stool microscopy...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29165218/molecular-identification-of-trichuris-suis-and-trichuris-trichiura-eggs-in-human-populations-from-thailand-lao-pdr-and-myanmar
#6
Issarapong Phosuk, Oranuch Sanpool, Tongjit Thanchomnang, Lakkhana Sadaow, Rutchanee Rodpai, Witthaya Anamnart, Penchom Janwan, Adulsak Wijit, Sakhone Laymanivong, Win Pa Pa Aung, Pewpan M Intapan, Wanchai Maleewong
Trichuris trichiura is a soil-transmitted helminth infecting human populations globally. Human cases caused by Trichuris suis and Trichuris vulpis have also been reported. Molecular identifications of Trichuris species infecting human populations in Lao PDR and Myanmar are lacking. Here, we explored molecular data obtained from Trichuris eggs recovered from human fecal samples from these countries and compared these with new and existing data from Thailand. Nuclear ribosomal DNA (18S and ITS2) sequences were amplified from Trichuris eggs and sequenced...
November 20, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29162144/schistosoma-mansoni-and-other-helminthes-infections-at-haike-primary-school-children-north-east-ethiopia-a-cross-sectional-study
#7
Daniel Getacher Feleke, Solomon Arega, Mulien Tekleweini, Kegnitu Kindie, Alemu Gedefie
OBJECTIVES: Schistosomiasis and soil-transmitted helminthes infections are among the widely distributed infections worldwide. In Ethiopia, parasitic helminthic infections and schistosomiasis are among the most predominant causes of outpatient morbidity. Hence there is still lack of epidemiological information in North-Eastern Ethiopia, this study aimed to determine the prevalence and associated factors of Schistosoma mansoni and other helminthes infections at Haike primary school children, Haike, North-East Ethiopia...
November 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29144297/effect-of-reagents-used-during-detection-and-quantification-of-ascaris-suum-in-environmental-samples-on-egg-viability
#8
Isaac Dennis Amoah, Poovendhree Reddy, Thor Axel Stenström
Soil-transmitted helminths (STHs) are a major health concern globally. Infection is mostly through contact with contaminated water, food or soil. Therefore to break the cycle of viable transmission STH eggs must be quantitatively detected in the environment. The effect of different reagents on the viability of Ascaris suum eggs during laboratory detection and quantification was assessed and different incubation solutions compared. Sulphuric acid gave a slightly higher recovery percentage of viable eggs (91...
November 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29143641/effects-of-deworming-on-child-and-maternal-health-a-literature-review-and-meta-analysis
#9
Winter Maxwell Thayer, Adrienne Clermont, Neff Walker
BACKGROUND: Soil-transmitted helminth infections are widespread. Many studies have been published on the topic of deworming. The Lives Saved Tool (LiST) is a software package that uses a deterministic mathematical model to estimate the effect of scaling up interventions on maternal and child health outcomes. This review investigates the scope of available evidence for benefits of deworming treatments in order to inform a decision about possible inclusion of deworming as an intervention in LiST...
November 7, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29141763/pilot-study-of-the-addition-of-mass-treatment-for-malaria-to-existing-school-based-programs-to-treat-neglected-tropical-diseases
#10
Lauren M Cohee, Moses Chilombe, Andrew Ngwira, Samuel K Jemu, Don P Mathanga, Miriam K Laufer
Malaria and neglected tropical diseases (NTDs), including schistosomiasis and soil transmitted helminths, threaten the health of school aged in sub-Saharan Africa. Established school-based mass drug administration (MDA) programs are used to control NTDs. Recent clinical trials have shown benefit of mass treatment of malaria in schools. The potential of adding malaria treatment to existing NTD programs has not been thoroughly evaluated. We offered malaria treatment with artemether-lumefantrine during routine NTD MDA and developed peer education programs in two primary schools in southern Malawi...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29138640/prevalence-of-soil-transmitted-helminthiases-and-schistosomiasis-in-preschool-age-children-in-mwea-division-kirinyaga-south-district-kirinyaga-county-and-their-potential-effect-on-physical-growth
#11
Stephen Sifuna Wefwafwa Sakari, Amos K Mbugua, Gerald M Mkoji
Intestinal parasitic infections can significantly contribute to the burden of disease, may cause nutritional and energetic stress, and negatively impact the quality of life in low income countries of the world. This cross-sectional study done in Mwea irrigation scheme, in Kirinyaga, central Kenya, assessed the public health significance of soil-transmitted helminthiases (STH), schistosomiasis, and other intestinal parasitic infections, among 361 preschool age children (PSAC) through fecal examination, by measuring anthropometric indices, and through their parents/guardians, by obtaining sociodemographic information...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29137663/patent-landscape-of-neglected-tropical-diseases-an-analysis-of-worldwide-patent-families
#12
Folahanmi Tomiwa Akinsolu, Vitor Nobre de Paiva, Samuel Santos Souza, Orsolya Varga
BACKGROUND: "Neglected Tropical Diseases" (NTDs) affect millions of people in Africa, Asia and South America. The two primary ways of strategic interventions are "preventive chemotherapy and transmission control" (PCT), and "innovative and intensified disease management" (IDM). In the last 5 years, phenomenal progress has been achieved. However, it is crucial to intensify research effort into NTDs, because of the emerging drug resistance. According to the World Health Organization (WHO), the term NTDs covers 17 diseases, namely buruli ulcer, Chagas disease, dengue, dracunculiasis, echinococcosis, trematodiasis, human African trypanosomiasis, leishmaniasis, leprosy, lymphatic filariasis, onchocerciasis, rabies, schistosomiasis, soil-transmitted helminthes, taeniasis, trachoma, and yaws...
November 14, 2017: Globalization and Health
https://www.readbyqxmd.com/read/29127616/worm-infestation-diagnosis-treatment-and-prevention
#13
REVIEW
Bhavneet Bharti, Sahul Bharti, Sumeeta Khurana
Worm infections continue to be among the most common diseases affecting children from low and middle income countries. Major worm infections of public health importance include Ascariasis, Trichuriasis, Hookworm, and Enterobiasis, which are transmitted through contaminated soil. In India, combined prevalence rates of worm infestation as per pooled data of 127 surveys is over 20%. Although most helminthic infections are mild and are often asymptomatic, but moderate to heavy worm infestations are generally associated with growth faltering, nutritional compromise, anemia and suboptimal academic performance among children from endemic regions...
November 11, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29114485/laboratory-diagnosis-of-soil-transmitted-helminthiasis
#14
Sumeeta Khurana, Shveta Sethi
Soil-transmitted helminths (STHs) include, i.e., hookworms (Ancylostoma duodenale, Necator americanus), roundworm (Ascaris lumbricoides), whipworm (Trichuris trichiura) and Strongyloides stercoralis. Globally, around 1.5 billion people are infected with STHs. STHs contribute to significant impairment of mental and physical growth, especially in developing countries. Unfortunately, these infections mostly remain undiagnosed due to lack of trained personnel and appropriate technologies. Intermittent shedding of eggs or larvae further makes the diagnosis difficult...
July 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/29114484/epidemiology-and-clinical-features-of-soil-transmitted-helminths
#15
Subhash Chandra Parija, Meenachi Chidambaram, Jharna Mandal
Soil-transmitted helminths (STH) consist of Ascaris lumbricoides, Trichuris trichiura, and hookworm (Necator americanus and Ancylostoma duodenale). It affects nearly 1.7 billion people globally in which Ascaris contributes nearly 1.2 billion cases. The main mode for transmission of Ascaris and Trichuris is through contaminated food and water, whereas hookworm transmitted by skin penetration. STH were mainly seen in areas with poverty, overcrowding, and poor sanitation. The prevalence is more in rural areas compared to urban areas...
July 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/29108026/status-of-soil-transmitted-helminth-infections-in-schoolchildren-in-laguna-province-the-philippines-determined-by-parasitological-and-molecular-diagnostic-techniques
#16
Mary Lorraine S Mationg, Catherine A Gordon, Veronica L Tallo, Remigio M Olveda, Portia P Alday, Mark Donald C Reñosa, Franziska A Bieri, Gail M Williams, Archie C A Clements, Peter Steinmann, Kate Halton, Yuesheng Li, Donald P McManus, Darren J Gray
BACKGROUND: Soil-transmitted helminths (STH) are the most common parasitic infections in impoverished communities, particularly among children. Current STH control is through school-based mass drug administration (MDA), which in the Philippines is done twice annually. As expected, MDA has decreased the intensity and prevalence of STH over time. As a result, the common Kato Katz (KK) thick smear method of detecting STH is less effective because it lacks sensitivity in low intensity infections, making it difficult to measure the impact of deworming programs...
November 6, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29079553/c%C3%A3-te-d-ivoire-dual-burden-of-disease-codubu-study-protocol-to-investigate-the-co-occurrence-of-chronic-infections-and-noncommunicable-diseases-in-rural-settings-of-epidemiological-transition
#17
Ikenna C Eze, Clémence Esse, Fidèle K Bassa, Siaka Koné, Felix Acka, Loukou Yao, Medea Imboden, Fabienne N Jaeger, Christian Schindler, Mireille Dosso, Véronique Laubhouet-Koffi, Dinard Kouassi, Eliézer K N'Goran, Jürg Utzinger, Bassirou Bonfoh, Nicole Probst-Hensch
BACKGROUND: Individual-level concomitance of infectious diseases and noncommunicable diseases (NCDs) is poorly studied, despite the reality of this dual disease burden for many low- and middle-income countries (LMICs). OBJECTIVE: This study protocol describes the implementation of a cohort and biobank aiming for a better understanding of interrelation of helminth and Plasmodium infections with NCD phenotypes like metabolic syndrome, hypertension, and diabetes. METHODS: A baseline cross-sectional population-based survey was conducted over one year, in the Taabo health and demographic surveillance system (HDSS) in south-central Côte d'Ivoire...
October 27, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/29052354/revisiting-the-ancylostoma-caninum-secretome-provides-new-information-on-hookworm-host-interactions
#18
Taylor Morante, Catherine Shepherd, Constantin Constantinoiu, Alex Loukas, Javier Sotillo
Hookworm infection is a major tropical parasitic disease affecting almost 500 million people worldwide. These soil-transmitted helminths can survive for many years in the intestine of the host, where they feed on blood, causing iron deficiency anaemia and other complications. These parasites release a variety of molecules known as excretory/secretory products (ESPs) that are involved in many different biological processes that govern parasite survival. Using a combination of separation techniques such as SDS-PAGE and OFFGEL electrophoresis, in combination with state-of-the-art mass spectrometry we have reanalysed the dog hookworm, Ancylostoma caninum, ESPs (AcES)...
October 20, 2017: Proteomics
https://www.readbyqxmd.com/read/29047387/isothermal-diagnostic-assays-for-the-detection-of-soil-transmitted-helminths-based-on-the-smartamp2-method
#19
Nour Rashwan, Aïssatou Diawara, Marilyn E Scott, Roger K Prichard
BACKGROUND: Diagnosis of soil-transmitted helminths (STHs) has traditionally relied on stool microscopy, which has a number of critical deficiencies. Molecular diagnostics are powerful tools to identify closely related species, but the requirement for costly equipment makes their implementation difficult in low-resource or field settings. Rapid, sensitive and cost-effective diagnostic tools are crucial for accurate estimation of STH infection intensity in MDA programmes in which the goal is to reduce morbidity following repeated rounds of chemotherapy...
October 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29035384/effect-of-anthelmintic-treatment-on-leptin-adiponectin-and-leptin-to-adiponectin-ratio-a-randomized-controlled-trial
#20
D L Tahapary, K de Ruiter, I Martin, E A T Brienen, L van Lieshout, Y Djuardi, C C Djimandjaja, J J Houwing-Duistermaat, P Soewondo, E Sartono, T Supali, J W A Smit, M Yazdanbakhsh
Emerging evidence suggests that helminths might confer protection against the development of type 2 diabetes. We aimed to assess the role of adipokines in mediating the effect of helminths on insulin resistance. Serum samples were obtained from a randomized-controlled trial of anthelmintic treatment in an area endemic for soil-transmitted helminths (STH), Flores Island, Indonesia. In STH-infected subjects, anthelmintic treatment significantly increased the ratio of leptin to adiponectin (treatment effect factor (95% confidence interval (CI)), P-value for interaction: 1...
October 16, 2017: Nutrition & Diabetes
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