keyword
MENU ▼
Read by QxMD icon Read
search

Parasite

keyword
https://www.readbyqxmd.com/read/28550645/new-entamoeba-group-in-howler-monkeys-alouatta-spp-associated-with-parasites-of-reptiles
#1
Claudia Villanueva-García, Elías José Gordillo-Chávez, Carlos Baños-Ojeda, Emilio Rendón-Franco, Claudia Irais Muñoz-García, Julio César Carrero, Alex Córdoba-Aguilar, Pablo Maravilla, José Galian, Fernando Martínez-Hernández, Guiehdani Villalobos
Our knowledge of the parasite species present in wildlife hosts is incomplete. Protozoans such as amoebae of the genus Entamoeba infect a large variety of vertebrate species, including NHPs. However, traditionally, their identification has been accomplished through microscopic evaluation; therefore, amoeba species have not always been identified correctly. We searched for Entamoeba spp. using a fragment of the small subunit rDNA in free-ranging howler monkeys (Alouatta palliata and A. pigra) from southeast Mexico...
May 27, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28550644/high-genetic-diversity-of-giardia-duodenalis-assemblage-e-in-pre-weaned-dairy-calves-in-shanghai-china-revealed-by-multilocus-genotyping
#2
Xiaolan Wang, Min Cai, Wen Jiang, Yuping Wang, Yue Jin, Na Li, Yaqiong Guo, Yaoyu Feng, Lihua Xiao
Giardia duodenalis is a common parasitic protozoan in human and animals. Epidemiological and molecular data are available from dairy cattle in many industrialized countries, but information on genetic diversity at multiple genetic loci is limited, especially in pre-weaned dairy calves. In this study, 818 fecal specimens were collected from five dairy cattle farms located in suburbs of Shanghai, China, with two to five samplings per farm. G. duodenalis assemblages and subtypes were determined using multilocus genotyping (MLG) at the β-giardin (bg), glutamate dehydrogenase (gdh), and triosephosphate isomerase (tpi) loci...
May 26, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28550086/the-iron-dependent-mitochondrial-superoxide-dismutase-soda-promotes-leishmania-virulence
#3
Bidyottam Mittra, Maria Fernanda Laranjeira-Silva, Danilo Ciccone Miguel, Juliana Perrone Bezerra de Menezes, Norma W Andrews
Leishmaniasis is one of the leading global neglected diseases, affecting millions of people worldwide. Leishmania infection depends on the ability of insect-transmitted metacyclic promastigotes to invade mammalian hosts, differentiate into amastigotes and replicate inside macrophages. To counter the hostile oxidative environment inside macrophages, these protozoans contain anti-oxidant systems that include iron-dependent superoxide dismutases (SODs) in mitochondria and glycosomes. Increasing evidence suggests that in addition to this protective role, Leishmania mitochondrial SOD may also initiate H2O2-mediated redox signaling that regulates gene expression and metabolic changes associated with differentiation into virulent forms...
May 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28549942/tissue-specific-expression-profile-of-some-immune-related-genes-in-labeo-rohita-to-edwardsiella-tarda-infection
#4
Sajal Kole, Deepika Anand, Rupam Sharma, Gayatri Tripathi, Makesh M, Rajendran Kv, Megha Kadam Bedekar
Rohu (Labeo rohita), an Indian Major Carp (IMC) is an economically important aquaculture species in India. Inspite of the technological advances, infectious diseases caused by viruses, bacteria and parasites have been a major limiting factor in the development and profitability of fish farms. At present, information regarding the immune status of the Indian major carps is limited. This lack of knowledge is a major impediment for establishment of effective preventive measures against broad spectrum of infectious agents...
May 23, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28549910/naturally-acquired-immune-responses-to-thrombospondin-related-adhesion-protein-trap-of-plasmodium-vivax-in-patients-from-areas-of-unstable-malaria-transmission
#5
Saeed Nazeri, Sedigheh Zakeri, Akram Abouie Mehrizi, Navid Dinparast Djadid
A key tool for the control, elimination, and eradication of Plasmodium vivax is the development of an effective vaccine. The thrombospondin-related adhesion protein (TRAP) is one of the major sporozoite antigens that plays an important role in the invasion of mosquito salivary glands and hepatocytes by sporozoites. The main goal of this study was to evaluate the naturally acquired antibodies to the P. vivax TRAP (PvTRAP) in patients from malaria-endemic areas of Iran (n=116), Afghanistan (n=50), and Pakistan (n=50)...
May 23, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28549876/prediction-and-analysis-of-promiscuous-t-cell-epitopes-derived-from-the-vaccine-candidate-antigens-of-leishmania-donovani-binding-to-mhc-class-ii-alleles-using-in-silico-approach
#6
Manju Kashyap, Varun Jaiswal, Umar Farooq
Visceral leishmaniasis is a dreadful infectious disease and caused by the intracellular protozoan parasites, Leishmania donovani and Leishmania infantum. Despite extensive efforts for developing effective prophylactic vaccine, still no vaccine is available against leishmaniasis. However, advancement in immunoinformatics methods generated new dimension in peptide based vaccine development. The present study was aimed to identify T-cell epitopes from the vaccine candidate antigens like Lipophosphogylcan-3(LPG-3) and Nucleoside hydrolase (NH) from the L...
May 23, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28549457/atp8-is-in-the-ground-pattern-of-flatworm-mitochondrial-genomes
#7
Bernhard Egger, Lutz Bachmann, Bastian Fromm
BACKGROUND: To date, mitochondrial genomes of more than one hundred flatworms (Platyhelminthes) have been sequenced. They show a high degree of similarity and a strong taxonomic bias towards parasitic lineages. The mitochondrial gene atp8 has not been confidently annotated in any flatworm sequenced to date. However, sampling of free-living flatworm lineages is incomplete. We addressed this by sequencing the mitochondrial genomes of the two small-bodied (about 1 mm in length) free-living flatworms Stenostomum sthenum and Macrostomum lignano as the first representatives of the earliest branching flatworm taxa Catenulida and Macrostomorpha respectively...
May 26, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28549390/clinical-and-molecular-monitoring-of-plasmodium-falciparum-resistance-to-antimalarial-drug-artesunate-sulphadoxine-pyrimethamine-in-two-highly-malarious-district-of-madhya-pradesh-central-india-from-2012-2014
#8
Sweta Mishra, Praveen K Bharti, Man M Shukla, Nazia A Ali, Sher S Kashyotia, Avdhesh Kumar, Akshay C Dhariwal, Neeru Singh
The spread of P. falciparum resistant strain has led to a significant resurgence of malaria morbidity and mortality. The current cornerstone in malaria treatment in India is Artemisinin based Combination (Artesunate + Sulphadoxine-Pyrimethamine) Therapy (ACT) for treatment of uncomplicated P. falciparum malaria since 2010. In the present study we assessed the therapeutic efficacy of ACT and molecular monitoring of antimalarial resistance. Therapeutic efficacy was determined by in vivo method using 28 days follow-up...
May 26, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28548703/microsporidians-xenomas-of-anglerfish-from-ne-atlantic-waters
#9
M Llarena-Reino, E Abollo, S Pascual
The presence of emergent visible parasites at commercial valuable fish species is increasingly causing problems at fisheries and seafood industries. Microsporidians have been previously reported to appear forming apparent xenomas complexes in anglerfish species, but no effort has been carried out to simultaneously integrate epidemiological data, phenotypic, genotypic and fine structural characterizations in the same parasite sample. In this work, specimens of Lophius budegassa and Lophius piscatorius from NE Atlantic waters were sampled and examined to provide information about specific site of infection and demographic data of two groups of different sizes of xenomas present at both fish species...
May 26, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28548690/rainbow-trout-oncorhynchus-mykiss-immune-response-towards-a-recombinant-vaccine-targeting-the-parasitic-ciliate-ichthyophthirius-multifiliis
#10
L von Gersdorff Jørgensen, P W Kania, K J Rasmussen, A H Mattsson, J Schmidt, A Al-Jubury, A Sander, A Salanti, K Buchmann
The protective effect in rainbow trout (Oncorhynchus mykiss) of an experimental subunit vaccine targeting antigens in the parasite Ichthyophthirius multifiliis has been evaluated and compared to effects elicited by a classical parasite homogenate vaccine. Three recombinant parasite proteins (two produced in E. coli and one in insect cells) were combined and injected i.p., and subsequently, protection and antibody responses were analysed. Both the experimental and the benchmark vaccine induced partial but significant protection against I...
May 26, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28548496/alkylated-selenophene-based-ladder-type-monomers-via-a-facile-route-for-high-performance-thin-film-transistor-applications
#11
Zhuping Fei, Yang Han, Eliot Gann, Thomas Hodsden, Anthony Chesman, Christopher R McNeill, Thomas D Anthopoulos, Martin Heeney
We report the synthesis of two new selenophene containing ladder-type monomers, cyclopentadiselenophene (CDS) and indacenodiselenophene (IDSe), via a twofold and fourfold Pd catalyzed coupling with a 1,1-diborylmethane derivative. Co-polymers with benzothiadiazole (BT) were prepared in high yield by Suzuki polymerization to afford co-polymers which exhibited excellent solubility in a range of non-chlorinated solvents. The CDS co-polymer exhibited a band gap of just 1.18 eV, which is amongst the lowest reported for donor-acceptor polymers...
May 26, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28547798/a-tough-nut-to-crack-intracellular-detection-and-quantification-of-heme-in-malaria-parasites-by-a-genetically-encoded-protein-sensor
#12
Diana Imhof, Amelie Wißbrock
A genetically encoded protein sensor based on HRP2 was used to detect heme in the human malaria parasite Plasmodium falciparum using fluorescence-quenching after heme binding. Protein labels ECFP and EYFP were attached to the termini to allow for a FRET signal as the initial detection parameter before heme binding. The sensor was eventually used to investigate alterations of the labile heme pool during the parasite's life cycle as well as under the influence of the drug chloroquine.
May 26, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28546688/collagen-cross-linking-for-microbial-keratitis
#13
Prashant Garg, Sujata Das, Aravind Roy
Collagen cross-linking is gaining popularity not only for arresting the progression of keratoconus but also other indications including management of corneal infections. In this review article, we analyzed the published literature to understand the level of evidence for its use in corneal ulcer. Photoactivated riboflavin and ultraviolet A light are known to possess antimicrobial properties. The treatment also induces formation of inter- and intra-fibrillar bonds, thereby making the corneal collagen resistant to the action of proteases arresting stromal melt...
January 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546554/high-throughput-resistance-profiling-of-plasmodium-falciparum-infections-based-on-custom-dual-indexing-and-illumina-next-generation-sequencing-technology
#14
Sidsel Nag, Marlene D Dalgaard, Poul-Erik Kofoed, Johan Ursing, Marina Crespo, Lee O'Brien Andersen, Frank Møller Aarestrup, Ole Lund, Michael Alifrangis
Genetic polymorphisms in P. falciparum can be used to indicate the parasite's susceptibility to antimalarial drugs as well as its geographical origin. Both of these factors are key to monitoring development and spread of antimalarial drug resistance. In this study, we combine multiplex PCR, custom designed dual indexing and Miseq sequencing for high throughput SNP-profiling of 457 malaria infections from Guinea-Bissau, at the cost of 10 USD per sample. By amplifying and sequencing 15 genetic fragments, we cover 20 resistance-conferring SNPs occurring in pfcrt, pfmdr1, pfdhfr, pfdhps, as well as the entire length of pfK13, and the mitochondrial barcode for parasite origin...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28546518/safety-immunogenicity-and-cross-species-protection-of-a-plasmid-dna-encoding-plasmodium-falciparum-sera5-polypeptide-microbial-epitopes-and-chemokine-genes-in-mice-and-olive-baboons
#15
Nyamongo Onkoba, Ruth M Mumo, Horace Ochanda, Charles Omwandho, Hastings S Ozwara, Thomas G Egwang
Incorporation of biomolecular epitopes to malarial antigens should be explored in the development of strain-transcending malarial vaccines. The present study sought to determine safety, immunogenicity and cross-species efficacy ofPlasmodium falciparum serine repeat antigen 5 polypeptide co-expressed with epitopes of Bacille-Calmette Guerin (BCG), tetanus toxoid (TT) and a chemokine gene. Olive baboons and BALB/c mice were randomly assigned into vaccine and control groups. The vaccine group animals were primed and boosted twice with pIRES plasmids encoding the SERA5+ BCG+ TT alone, or with either CCL5 or CCL20 and the control group with pIRES plasmid vector backbone...
April 6, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28546104/development-of-a-paediatric-physiologically-based-pharmacokinetic-model-to-assess-the-impact-of-drug-drug-interactions-in-tuberculosis-co-infected-malaria-subjects-a-case-study-with-artemether-lumefantrine-and-the-cyp3a4-inducer-rifampicin
#16
Olusola Olafuyi, Michael Coleman, Raj K S Badhan
The fixed dosed combination of artemether and lumefantrine (AL) is widely used for the treatment of malaria in adults and children in sub-Sahara Africa, with lumefantrine day 7 concentrations being widely used as a marker for clinical efficacy. Both are substrates for CYP3A4 and susceptible to drug-drug interactions (DDIs); indeed, knowledge of the impact of these factors is currently sparse in paediatric population groups. Confounding malaria treatment is the co-infection of patients with tuberculosis. The concomitant treatment of AL with tuberculosis chemotherapy, which includes the CYP3A4 inducer rifampicin, increases the risk of parasite recrudescence and malaria treatment failure...
May 22, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28545900/environmental-contamination-with-toxocara-spp-eggs-in-public-parks-and-playground-sandpits-of-greater-lisbon-portugal
#17
David Otero, Ana Margarida Alho, Rolf Nijsse, Jeroen Roelfsema, Paul Overgaauw, Luís Madeira de Carvalho
Toxocarosis is a zoonotic parasitic disease transmitted from companion animals to humans. Environmental contamination with Toxocara eggs is considered to be the main source of human infections. In Portugal, knowledge regarding the current situation, including density, distribution and environmental contamination by Toxocara spp., is largely unknown. The present study investigated environmental contamination with Toxocara spp. eggs, in soil and faecal samples collected from public parks and playground sandpits in Greater Lisbon, Portugal...
May 22, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28545896/morphological-identification-and-dna-barcoding-of-a-new-species-of-parabrachiella-siphonostomatoida-lernaeopodidae-with-aspects-of-their-intraspecific-variation
#18
M M Montes, R Castro-Romero, S R Martorelli
We present a detailed morphological description and a DNA barcoding of Parabrachiella platensis n. sp. collected from Mugil liza Valenciennes in Samborombon Bay (Buenos Aires, Argentina). This new species was compared with two Parabrachiella species parasitic on mugilids: Parabrachiella exilis (Shiino, 1956) and Parabrachiella mugilis (Kabata, Raibaut et Ben Hassine, 1971). Parabrachiella platensis n. sp. differs from those species in the shape of posterior processes, the anal slit with two pairs of bipartite papillae, the size of cephalothorax, the trunk, the maxilla, the microhabitat on the host, and the lack of caudal rami...
May 22, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28545895/molluscicidal-potential-of-heterorhabditis-baujardi-rhabditida-heterorhabditidae-strain-lpp7-on-lymnaea-columella-gastropoda-pulmonata-an-alternative-for-biological-control-of-fasciolosis
#19
Victor Menezes Tunholi, Priscila de Oliveira Lorenzoni, Ygor Henrique da Silva, Vinícius Menezes Tunholi-Alves, Jankerle Neves Boeloni, Maria Aparecida da Silva, Caio Oliveira Monteiro, Márcia Cristina de Azevedo Prata, Jairo Pinheiro da Silva, Isabella Vilhena Freire Martins
This study elucidated for the first time, under laboratory conditions, the susceptibility of Lymnaea columella to infective juveniles of Heterorhabditis baujardi LPP7. Exposure to the nematodes induced an average mortality rate of 66.66% in the population of L. columella, with the highest values attained from the second week after exposure onward. In addition, all the reproductive parameters analyzed (total number of eggs, number of egg masses, number of eggs laid/snail, embryo hatching rate and content of galactogen stored in the albumen gland) changed as a result of the infection...
May 22, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28545664/a-phenolic-glycoside-from-flacourtia-indica-induces-heme-mediated-oxidative-stress-in-plasmodium-falciparum-and-attenuates-malaria-pathogenesis-in-mice
#20
Shiv Vardan Singh, Ashan Manhas, Suriya P Singh, Sonali Mishra, Nimisha Tiwari, Parmanand Kumar, Karuna Shanker, Kumkum Srivastava, Koneni V Sashidhara, Anirban Pal
BACKGROUND: Flacourtia indica is especially popular among the various communities of many African countries where it is being used traditionally for the treatment of malaria. In our previous report, we have identified some phenolic glycosides from the aerial parts of F. indica as promising antiplasmodial agents under in vitro conditions. PURPOSE: Antimalarial bioprospection of F. indica derived phenolic glycoside in Swiss mice (in vivo) with special emphasis on its mode of action...
July 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
keyword
keyword
26614
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"