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Parasitology

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https://www.readbyqxmd.com/read/27921244/towards-green-oviposition-deterrents-effectiveness-of-syzygium-lanceolatum-myrtaceae-essential-oil-against-six-mosquito-vectors-and-impact-on-four-aquatic-biological-control-agents
#1
Giovanni Benelli, Mohan Rajeswary, Marimuthu Govindarajan
Essential oils (EOs) from plants may be alternative sources of molecules toxic against mosquito vectors of public health relevance. Most of researches in this field focused on EOs as larvicides or ovicides, while limited efforts focused on the exploitation of EOs as oviposition deterrents. In the present study, the larvicidal and oviposition deterrent activity of Syzygium lanceolatum leaf EO was evaluated against six mosquito species, Anopheles stephensi, An. subpictus, Aedes aegypti, Ae. albopictus, Culex quinquefasciatus, and Cx...
December 5, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27920563/assessing-parasite-clearance-during-uncomplicated-plasmodium-falciparum-infection-treated-with-artesunate-monotherapy-in-suriname
#2
Stephen Gs Vreden, Rakesh D Bansie, Jeetendra K Jitan, Malti R Adhin
BACKGROUND: Artemisinin resistance in Plasmodium falciparum is suspected when the day 3 parasitemia is >10% when treated with artemisinin-based combination therapy or if >10% of patients treated with artemisinin-based combination therapy or artesunate monotherapy harbored parasites with half-lives ≥5 hours. Hence, a single-arm prospective efficacy trial was conducted in Suriname for uncomplicated P. falciparum infection treated with artesunate-based monotherapy for 3 days assessing day 3 parasitemia, treatment outcome after 28 days, and parasite half-life...
2016: Infection and Drug Resistance
https://www.readbyqxmd.com/read/27914572/different-treatment-schemes-and-dynamizations-of-trypanosoma-cruzi-biotherapies-what-information-do-they-transfer-to-the-organism-in-infected-mice
#3
Fabiana Nabarro Ferraz, Franciele Karina da Veiga, Denise Lessa Aleixo, Miguel Spack Júnior, Silvana Marques de Araújo
BACKGROUND: The use of biotherapies in Trypanosoma cruzi infection can provide an understanding about effects of these highly diluted medications. OBJECTIVES: To evaluate different treatment schemes and dynamizations of biotherapies prepared from blood trypomastigotes (buffy coat) in mice infected with T. cruzi. METHODS: Swiss mice infected with Y strain of T. cruzi were divided into two experiments. Experiment 1, all treated groups received biotherapy 7dH (10 μL/mL ad libitum) in different treatment schemes: TB7dH - treated 3 days before infection; TBA7dH - treated 3 days before and after infection; TBAe...
November 2016: Homeopathy: the Journal of the Faculty of Homeopathy
https://www.readbyqxmd.com/read/27906988/atypical-manifestations-of-cutaneous-leishmaniasis-in-a-region-endemic-for-leishmania-braziliensis-clinical-immunological-and-parasitological-aspects
#4
Luiz Henrique Guimarães, Adriano Queiroz, Juliana A Silva, Silvana C Silva, Viviane Magalhães, Ednaldo L Lago, Paulo Roberto L Machado, Olívia Bacellar, Mary E Wilson, Stephen M Beverley, Edgar M Carvalho, Albert Schriefer
BACKGROUND: Atypical cutaneous leishmaniasis (ACL) has become progressively more frequent in Corte de Pedra, Northeast Brazil. Herein we characterize clinical presentation, antimony response, cytokine production and parasite strains prevailing in ACL. METHODOLOGY/PRINCIPAL FINDINGS: Between 2005 and 2012, 51 ACL (cases) and 51 temporally matched cutaneous leishmaniasis (CL) subjects (controls) were enrolled and followed over time in Corte de Pedra. Clinical and therapeutic data were recorded for all subjects...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27905288/cyclospora-cayetanensis-opportunistic-protozoan-parasite-in-van-province-turkey-a-report-of-seven-cases
#5
Zeynep Taş Cengiz, Yunus Emre Beyhan, Hasan Yılmaz
The aim of this study is to report seven Cyclospora cayetanensis (C.cayetanensis) cases determined in Yuzuncu Yil University Medical Faculty Parasitology Laboratory, Van province, Turkey. In the study native-Lugol, formalin-ethyl acetate and modified acid-fast staining methods were performed to stool samples of the patients sent from outpatient clinics of the hospital. All of the patients infected with C. cayetanensis were older than 15 years. In our cases there were not a history of international travel. Only one of our seven cases was immunosuppressed...
September 2016: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/27905282/distribution-of-parasites-detected-in-stool-samples-of-patients-admitted-to-our-parasitology-laboratory-during-a-three-year-period-between-2012-and-2014
#6
Mehmet Burak Selek, Bayhan Bektöre, Ergenekon Karagöz, Orhan Baylan, Mustafa Özyurt
OBJECTIVE: Parasitic diseases are among the major public health issues worldwide. A number of tests are available for diagnosis, but the sentivity and specifity of these tests are assumed to be insufficient. Nevertheless, the most common diagnostic method is microscopic examination. In this study, we aimed to introduce the distribution of parasites detected in stool samples of patients admitted to our laboratory on the basis of parameters such as, age, and gender during a 3-year period between 2012 and 2014...
September 2016: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/27905281/identification-of-acanthamoeba-genotypes-in-pools-and-stagnant-water-in-ponds-in-sistan-region-in-southeast-iran
#7
Ali Aghajani, Mansour Dabirzadeh, Yahya Maroufi, Hossein Hooshyar
OBJECTIVE: Acanthamoeba is one of the most abundant free-living amoebas that is widely distributed in natural and artificial environment resources. Acanthamoeba pathogenic genotypes cause chronic human diseases including amoebic keratitis and granulomatous amoebic encephalitis. The aim of this study was to determine and identify Acanthamoeba genotypes residing in pools and stagnant water in ponds in Sistan region in southeast Iran. This descriptive study was conducted at the Parasitology Laboratory, School of Medicine, Zabol University of Medical Sciences...
September 2016: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/27903313/robert-leiper-and-the-london-school-of-hygiene-and-tropical-medicine
#8
Francis E G Cox
Robert Leiper is best known for his discoveries in the fields of Guinea worm and schistosomiasis, but he also made major contributions to parasitology during his career as helminthologist and later Professor of Helminthology at the London School of (Hygiene and) Tropical Medicine. He was particularly involved in establishing the London School's Winches Farm Field Station and stimulating the research carried out there, work that has made a number of important contributions to our understanding of parasites. Leiper founded the Commonwealth Bureau of Agricultural Parasitology and was also instrumental in initiating, and editing, the Journal of Helminthology, Helminthological Abstracts and establishing, indirectly, Protozoological Abstracts...
December 1, 2016: Parasitology
https://www.readbyqxmd.com/read/27895270/dicrocoelium-dendriticum-an-unusual-parasitological-diagnosis-in-a-reference-international-health-unit
#9
Zaira Moure, Francesc Zarzuela, Mateu Espasa, Diana Pou, Nuria Serre-Delcor, Begoña Treviño, Cristina Bocanegra, Israel Molina, Tomas Pumarola, Elena Sulleiro
Finding Dicrocoelium dendriticum eggs in human feces is exceptional and there are few prevalence data available. True infection occurs after accidental ingestion of ants containing metacercariae and spurious infection through the consumption of infected animal liver. Differential diagnosis between true and pseudo-infections is performed through stool examination after a diet free of liver. In addition, microscopy can help to differentiate the type of infection. We report six cases, all from sub-Saharan Africa, detection of this fluke at the Tropical Medicine Unit Vall d'Hebron-Drassanes (Barcelona, Spain)...
November 28, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27894933/parasitism-personality-and-cognition-in-fish
#10
REVIEW
I Barber, A B Mora, E M Payne, K L Weinersmith, A Sih
It is well established that parasites can have profound effects on the behaviour of host organisms, and that individual differences in behaviour can influence susceptibility to parasite infections. Recently, two major themes of research have developed. First, there has been a growing interest in the proximate, mechanistic processes underpinning parasite-associated behaviour change, and the interactive roles of the neuro-, immune, and other physiological systems in determining relationships between behaviour and infection susceptibility...
November 25, 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27893347/asymptomatic-infections-in-blood-donors-harbouring-plasmodium-an-invisible-risk-detected-by-molecular-and-serological-tools
#11
Giselle F M C Lima, Maria C Arroyo Sanchez, José E Levi, Mahyumi Fujimori, Luiza Da Cruz Caramelo, Arianni Rondelli Sanchez, Eduardo M Ramos-Sanchez, Juliana Inoue, Maria De Jesus Costa-Nascimento, Alfredo Mendrone Junior, Silvia M Di Santi
BACKGROUND: Transfusion-transmitted malaria due to asymptomatic Plasmodium infections is a challenge for blood banks. There is a lack of data on the prevalence of asymptomatic infected blood donors and the incidence of transfusion-transmitted malaria in low endemicity areas worldwide. We estimated the frequency of blood donors harbouring Plasmodium in an area in which asymptomatic infections have been reported. MATERIAL AND METHODS: To estimate the frequency of blood donors harbouring Plasmodium we used microscopy and molecular tools...
November 7, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27888125/initiating-ntd-programs-targeting-schistosomiasis-and-soil-transmitted-helminthiasis-in-two-provinces-of-the-democratic-republic-of-the-congo-establishment-of-baseline-prevalence-for-mass-drug-administration
#12
Achille Kabore, Moudachirou Ibikounle, Jean Jacques Tougoue, Sylvain Mupoyi, Martin Ndombe, Scott Shannon, Eric A Ottesen, Faustin Mukunda, Naomi Awaca
BACKGROUND: Schistosomiasis (SCH) and soil-transmitted helminthiasis (STH) are widely distributed in the Democratic Republic of the Congo (DRC) and constitute a serious public health problem. As recommended by the World Health Organization (WHO), before launching mass chemotherapy to control these diseases, parasitological surveys were conducted in sentinel sites in six health zones (HZs) in Bandundu and Maniema provinces. Baseline prevalence and intensity of infection for SCH and STH were determined to establish the appropriate treatment plan using Praziquantel (PZQ) and Albendazole (ALB)...
November 22, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27887614/insight-into-k13-propeller-gene-polymorphism-and-ex-vivo-dha-response-profiles-from-cameroonian-isolates
#13
Sandie Menard, Joëlle Njila Tchoufack, Christelle Ngou Maffo, Sandrine E Nsango, Xavier Iriart, Luc Abate, Majoline Tchioffo Tsapi, Parfait H Awono-Ambéné, Francis A Abega Mekongo, Isabelle Morlais, Antoine Berry
BACKGROUND: The spread of Plasmodium falciparum resistance to artemisinin derivatives in Southeast Asia is a major source of concern and the emergence of resistance in Africa would have dramatic consequences, by increasing malaria mortality and morbidity. It is therefore urgent to implement regular monitoring in sentinel sites in sub-Saharan Africa using robust and easy-to-implement tools. The prevalence of k13-propeller mutations and the phenotypic profiles are poorly known in sub-Saharan Africa...
November 26, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27884406/-clinical-approach-to-imported-eosinophilia
#14
Elías Cañas García-Otero, Julia Praena-Segovia, Maite Ruiz-Pérez de Pipaón, Xerach Bosh-Guerra, Magdalena Sánchez-Agüera, Daniel Álvarez-Martínez, José Miguel Cisneros-Herreros
Eosinophilia is a common finding in international travelers and immigrants, being an helmintic infection its main etiology. The positive predictive value of eosinophilia for an helmintosis is low in travellers. Eosinophilia may be an incidental finding, or symptomatic, and it represents a clinical challenge due to the low sensitivity and specificity of direct and indirect parasitological diagnostic tests, respectively. It requires a structured approach based on geographical areas, environmental exposures and behavioral risks, and associated symptoms...
December 2016: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27884121/prevalence-and-risk-factors-of-intestinal-protozoan-infections-a-population-based-study-in-rural-areas-of-boyer-ahmad-district-southwestern-iran
#15
Bahador Sarkari, Ghasem Hosseini, Mohammad Hossein Motazedian, Mohammad Fararouei, Abdolali Moshfe
BACKGROUND: Parasitic infections are still a significant health problem in rural areas in developing countries including Iran. There is no recent population-based data about the prevalence of human intestinal parasites in most rural areas of Iran. The current study aimed to determine the prevalence of intestinal protozoan infection in inhabitants of rural areas of Boyer-Ahmad district, Southwestern Iran. METHODS: A total of 1025 stool samples were collected from the inhabitant of 50 randomly selected villages in Boyer-Ahmad Township...
November 25, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27883269/oil-fortified-maize-porridge-increases-absorption-of-lumefantrine-in-children-with-uncomplicated-falciparum-malaria
#16
Norah Mwebaza, Markus Jerling, Lars L Gustafsson, Antero V Silva, Anton Pohanka, Celestino Obua, Paul Waako, Olof Beck, Manijeh Vafa Homann, Anna Färnert, Urban Hellgren
Artemether-lumefantrine (AL) is a first-line treatment for uncomplicated malaria. Absorption of lumefantrine (LUM) is fat-dependent, and in children intake is recommended with milk. We investigated whether oil-fortified maize porridge can be an alternative when milk is not available. In an open-label pharmacokinetic study, Ugandan children <5 years with uncomplicated Plasmodiun falciparum malaria were randomized to receive standard 6-dose AL treatment (1 tablet {20mgA/ 120mg LUM} if <15kg and 2 tablets if > 15 kg) with milk (A) or maize porridge plus oil (B)...
November 24, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27881115/intestinal-polyparasitism-with-special-emphasis-to-soil-transmitted-helminths-among-residents-around-gilgel-gibe-dam-southwest-ethiopia-a-community-based-survey
#17
Zeleke Mekonnen, Sultan Suleman, Abdissa Biruksew, Tamirat Tefera, Legese Chelkeba
BACKGROUND: One third of the world population is estimated to be infected with intestinal parasites. The most affected people are children and the poor people living in tropics and subtropics. Polyparasitism (the concurrent infection with multiple intestinal parasite species) is found to be the norm among the same population although accurate estimate of its magnitude is unknown. It was found that polyparasitism might have a greater impact on morbidity than single species infection which might also increase susceptibility to other infections...
November 23, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27879464/severe-pleuropulmonary-paragonimiasis-caused-by-paragonimus-mexicanus-treated-as-tuberculosis-in-ecuador
#18
Manuel Calvopina, Daniel Romero-Alvarez, Rubén Macias, Hiromu Sugiyama
A 30-year-old male, from a subtropical region of Ecuador, was hospitalized with a 5-year history of persistent cough with rusty brown sputum, chest pain, and progressive dyspnea. The patient underwent thoracic surgery 3 years ago for pleural effusion and subsequently received a 9-month regimen treatment of tuberculosis. However, there was no clinical resolution and symptoms became progressively worse. A chest radiograph and computerized tomography scan showed several small nodules in both lungs. Eggs of Paragonimus spp...
November 22, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27879460/effectiveness-of-short-course-meglumine-antimoniate-glucantime%C3%A2-for-treatment-of-visceral-leishmaniasis-a-13-year-multistage-non-inferiority-study-in-iran
#19
Abdolvahab Alborzi, Gholamreza Pouladfar, Armin Attar, Fatemeh Falahi, Zahra Jafarpour, Abdollah Karimi, Mohammad Rahim Kadivar
The World Health Organization's (WHO) recommendation is 28-day course of meglumine antimoniate (Glucantime(®)) for the treatment of visceral leishmaniasis (VL). The aim of this study was to evaluate the effectiveness of a shorter duration of treatment in regions with low level of resistance to Glucantime. During 13 years, this study was conducted in three phases on 392 patients. In the pilot first phase, we performed splenic punctures in seven patients to assess the correlation between the changes in the parasite load during treatment with Glucantime and defervescence...
November 22, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27876991/trichomoniasis-in-older-individuals-a-preliminary-report-from-iran
#20
Zohreh Momeni, Javid Sadraei, Bahram Kazemi, Abdolhossein Dalimi
Infection with Trichomonas vaginalis is one of the most common sexually transmitted diseases (STDs) in humans. The prevalence of infection in Iran has been reported 0.009-8 % depending on deferent socio-cultural conditions. This study aimed to determine the frequency of T. vaginalis according to age in patients referred to clinics, hospitals and medical diagnostic laboratories in Karaj city, Iran. For this purpose, fifty positive samples were collected from July 2012 to June 2014 from clinics, medical diagnostic laboratories and hospitals, then transferred to laboratory of parasitology and cultured in TYM medium...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
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