Phylogenetic Analysis of the Complete rRNA Gene Sequence of Nosema sp. SE Isolated from the Beet Armyworm Spodoptera exigua.

Phylogenetic Analysis of the Complete rRNA Gene Sequence of Nosema sp. SE Isolated from the Beet Armyworm Spodoptera exigua. J Parasitol. 2019 Dec;105(6):878-881 Authors: Xing D, Li Q, Zhang J, Xiao Y, Chen W, Yang Q Abstract The microsporidium Nosema sp. SE is a pathogen that infects the beet armyworm Spodoptera exigua. The complete sequence of its 4,302-base pair (bp) ribosomal ribonucleic acid (rRNA) gene region was obtained by polymerase chain reaction amplification and sequencing. The rRNA organization of Nosema sp. SE was 5'-large subunit (LSU) rRNA-internal transcribed spacer-small subunit (SSU) rRNA-intergenic spacer-5S-3', which corresponded to the pattern of Nosema bombycis. Phylogenetic analysis based on LSU rRNA and SSU rRNA both indicated that the parasite had a close relationship with other true Nosema species, confirming that Nosema sp. SE belongs to true Nosema group of the genus Nosema. PMID: 31730392 [PubMed - in process]
Source: The Journal of Parasitology - Category: Parasitology Authors: Tags: J Parasitol Source Type: research

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Authors: Bartra-More CA, Ramos-Castillo J, Mendoza-Bautista RC, Galindo-Cabello NR, Gebol-Cahuaza M, Chirinos-Palomino FJ Abstract Timely diagnosis of malaria is a strategy proposed by the World Health Organization to reduce malaria morbidity and mortality. A study was conducted to assess performance in microscopic diagnosis of malaria in the network of laboratories under the National Malaria Reference Laboratory of the National Institute of Health between 2012 and 2017. In the years of study, the laboratories obtained a rating of "acceptable" in the diagnosis of Plasmodium by 38.4%, 43.7%, 60.0%, 83.3%, ...
Source: Revista Peruana de Medicina de Experimental y Salud Publica - Category: International Medicine & Public Health Tags: Rev Peru Med Exp Salud Publica Source Type: research
CONCLUSIONS: . Mechanical, thermal shock, and enzymatic pre-treatments are necessary for the rupture of the cystic wall of Giardia spp. making it the highest-yielding bg molecular marker for detecting cyst DNA. Trophozoites do not require pre-treatment to achieve satisfactory results. A reproducible methodology for the extraction of DNA from Giardia spp. from any evolutionary stage is available. PMID: 31800934 [PubMed - in process]
Source: Revista Peruana de Medicina de Experimental y Salud Publica - Category: International Medicine & Public Health Tags: Rev Peru Med Exp Salud Publica Source Type: research
Conclusion: Leishmania major is responsible for the most common CL in southern Iran. In addition, in two patients with L. major and L. tropica, mix infection with Crithidia was confirmed. The potential role of Crithidia as the main factor for CL and the probability of this parasite to have synergistic effects on Leishmania, as a hypothesis, requires more comprehensive researches on the ambiguity of this protozoon. PMID: 31803781 [PubMed]
Source: Iranian Journal of Arthropod-Borne Diseases - Category: Infectious Diseases Tags: J Arthropod Borne Dis Source Type: research
Conclusion: The mosquito collected and mapped can be considered for transmission of malaria and filariasis in the region. Bearing in mind the results of niche modeling for vector species, more studies on vectorial capacity and resistance status to different insecticides of these species are recommended. PMID: 31803777 [PubMed]
Source: Iranian Journal of Arthropod-Borne Diseases - Category: Infectious Diseases Tags: J Arthropod Borne Dis Source Type: research
Conclusion: Some investigations have reported An. martinius as a member of sibling species of An. sacharovi among Iranian Anopheles genus; while based on our study, there was no evidence of the presence of this species in north and northwest of Iran. PMID: 31803774 [PubMed]
Source: Iranian Journal of Arthropod-Borne Diseases - Category: Infectious Diseases Tags: J Arthropod Borne Dis Source Type: research
The anthelmintic drug praziquantel (PZQ) is used to treat schistosomiasis, a neglected tropical disease that affects over 200 million people worldwide. PZQ causes Ca2+ influx and spastic paralysis of adult worms and rapid vacuolization of the worm surface. However, the mechanism of action of PZQ remains unknown even after 40 years of clinical use. Here, we demonstrate that PZQ activates a schistosome transient receptor potential (TRP) channel, christened Sm.TRPMPZQ, present in parasitic schistosomes and other PZQ-sensitive parasites. Several properties of Sm.TRPMPZQ were consistent with known effects of PZQ on schistosomes...
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: Accelerated Communications Source Type: research
Malaria is caused by unicellular apicomplexan parasites of the genus Plasmodium, which includes the major human parasite Plasmodium falciparum. The complex cycle of the malaria parasite in both mosquito and human hosts has been studied extensively. There is tight control of gene expression in each developmental stage, and at every level of gene synthesis: from RNA transcription, to its subsequent translation, and finally post-translational modifications of the resulting protein. Whole-genome sequencing of P. falciparum has laid the foundation for significant biological advances by revealing surprising genomic information. ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In this study, we characterized the role of amylo-alpha-1,6-glucosidase (Aa16GL) in the biology and infectivity of Toxoplasma gondii, using Aa16GL-deficient parasites of type I RH and type II Prugniaud (Pru) strains. The subcellular localization of Aa16GL protein was characterized by tagging a 3 × HA to the 3′ end of the Aa16GL gene endogenous locus. Immunostaining of the expressed Aa16GL protein revealed that it is located in several small cytoplasmic puncta. Functional characterization of ΔAa16GL mutants using plaque assay, egress assay and intracellular replication assay showed that parasites lacking A...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
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Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
We present the case of a woman diagnosed with a tapeworm infection by capsule endsocopy. Capsule endoscopy may have a role when the microscopic stool examination is negative in patients with non-specific symptoms. PMID: 31793320 [PubMed - as supplied by publisher]
Source: Revista Espanola de Enfermedades Digestivas - Category: Gastroenterology Tags: Rev Esp Enferm Dig Source Type: research
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