Parasitology

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Article Infectious Diseases

Human monoclonal antibodies inhibit invasion of transgenic Plasmodium knowlesi expressing Plasmodium vivax Duffy binding protein

Quentin D. Watson, Lenore L. Carias, Alyssa Malachin, Karli R. Redinger, Juergen Bosch, Martino Bardelli, Lea Baldor, Lionel Brice Feufack-Donfack, Jean Popovici, Robert W. Moon, Simon J. Draper, Peter A. Zimmerman, Christopher L. King

Summary: This study evaluated the invasion and growth inhibition of human monoclonal antibodies targeting PvDBP using a transgenic parasite model. Results showed that PvDBP-specific antibodies could effectively inhibit the invasion of P. vivax, but there was no significant synergistic effect observed in combinations of different antibodies.

MALARIA JOURNAL (2023)

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Article Parasitology

Rapid insecticide resistance bioassays for three major urban insects in Taiwan

Hsiu-Hua Pai, Chun-Yung Chang, Kai-Chen Lin, Err-Lieh Hsu

Summary: Taiwan's warm and humid climate and dense population provide a suitable environment for pest breeding. House flies, cockroaches, and mosquitoes are the three major urban pests in Taiwan. Selecting the most effective insecticide is crucial in cases where a disease outbreak or high pest density necessitates chemical control, and rapid resistance assessment is required.

PARASITES & VECTORS (2023)

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Article Parasitology

PCR-Based Screening of Pathogens in Bombus terrestris Populations of Turkey

Ali Sevim, Rahsan Akpinar, Seyit Hasan Ozturk, Fatih Yilmaz, Umit Kayaboynu, Elif Sevim, Hasan Ese, Umit Karatas, Mucahit Buldag, Sinasi Umur

Summary: This study aimed to determine the incidence and prevalence of pathogens in Turkish bumblebee populations and the distribution of each pathogen in bumblebee samples. The results showed that bumblebee populations in Turkey have a high prevalence of pathogen infection, with variations in infection rates between seasons and habitats.

ACTA PARASITOLOGICA (2023)

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Article Parasitology

Efficacy of an oral formulation of afoxolaner and milbemycin oxime against Tunga penetrans in naturally infected dogs

Katharine Costa dos Santos, Eric Tielemans, Andre Antonio Cutolo, Paula Elisa Brandao Guedes, Tatiani Vitor Harvey, Jamille Bispo de Carvalho Teixeira, Rebeca Costa Vitor, Anaia da Paixao Seva, Adan William de Melo Navarro, Ana Carolina Ribeiro Lima, Karin Denise Botteon, Thammy Vieira Bittar, George Rego Albuquerque, Fernando de Almeida Borges, Frederic Beugnet, Renata Santiago Alberto Carlos

Summary: This study assessed the efficacy of NexGard Spectra (R) against canine tungiasis and proved its high effectiveness. In addition to benefiting the health and welfare of treated dogs, the use of this product may have a one-health benefit on human cases by controlling the main reservoir of sand fleas.

PARASITES & VECTORS (2023)

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Article Parasitology

The role of apoptosis and oxidative stress in the pathophysiology of Acanthamoeba spp. infection in the kidneys of hosts with different immunological status

Karolina Kot, Patrycja Kupnicka, Maciej Tarnowski, Patrycja Tomasiak, Danuta Kosik-Bogacka, Natalia Lanocha-Arendarczyk

Summary: This study analyzes the gene expression and protein concentration of NADPH oxidase 2 and 4 (NOX2 and NOX4) and nuclear erythroid 2-related factor (Nrf2) in the kidneys of hosts with systemic acanthamoebiasis. The results show increased expression and/or concentration of NOX2 and NOX4 in infected mice, as well as higher expression of Nrf2 in immunocompetent mice. The study also reveals different strategies of Acanthamoeba spp. in relation to apoptosis, inhibiting apoptosis in immunocompetent hosts and increasing apoptosis in immunosuppressed hosts.

PARASITES & VECTORS (2023)

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Article Parasitology

Synopsis of gastropod-associated nematodes of Ciscaucasia (Russian Federation) with the description of a new species of Pellioditis Dougherty, 1953 (syn. Phasmarhabditis Andrássy, 1976)

E. S. Ivanova, S. E. Spiridonov

Summary: Caucasus is a biodiversity hotspot in Europe known for its rich gastropod fauna. The nematode fauna associated with gastropods in this region has been understudied. Recent surveys conducted in the North Caucasus of Russia discovered three new species of Pellioditis, a parasite of land gastropods, as well as other previously unrecorded species. Molecular studies indicate that the identified Pellioditis species likely belong to two separate clades with independent evolutionary histories.

JOURNAL OF HELMINTHOLOGY (2023)

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Article Infectious Diseases

13-Valent pneumococcal conjugate vaccines vaccination innovative strategy in Weifang City, China: a case study

Jiachen Wang, Yujue Wang, Ruoyu Xu, Ting Zhang, Yanyan Jiang, Yuanyuan Wang, Yi Wang, Yuanze Du, Wenxue Sun, Kai Deng, Weizhong Yang, Zengwu Wang, Luzhao Feng, Chunping Wang

Summary: Weifang City implemented an innovative strategy for PCV13 vaccination, providing free vaccines and reducing prices to increase vaccination coverage. However, the coverage is still lower than that in developed countries. To further promote PCV13 vaccination, Weifang City should continue to implement this strategy and explore appropriate financing channels.

INFECTIOUS DISEASES OF POVERTY (2023)

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Article Infectious Diseases

Plasmodium infections and associated risk factors among parturients in Jawi district, northwest Ethiopia: a cross-sectional study

Zemenu Tamir, Abebe Animut, Sisay Dugassa, Mahlet Belachew, Adugna Abera, Aster Tsegaye, Berhanu Erko

Summary: The study finds a significant prevalence of asymptomatic Plasmodium infections among parturients in northwest Ethiopia. Risk factors for malaria during pregnancy include maternal illiteracy, primigravidity, lack of antenatal care follow-up, and history of symptomatic malaria during pregnancy. Promoting healthy pregnancies through ANC follow-up, strengthening malaria prevention and control practices, and screening asymptomatic pregnant women for malaria are suggested to reduce its burden during pregnancy.

MALARIA JOURNAL (2023)

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Article Infectious Diseases

UPLC/ESI/MS profiling of red algae Galaxaura rugosa extracts and its activity against malaria mosquito vector, Anopheles pharoensis, with reference to Danio rerio and Daphnia magna as bioindicators

Mohamed A. M. El-Tabakh, Esraa A. Elhawary, Hossam M. Hwihy, Kareem F. Darweesh, Raafat M. Shaapan, Emad A. Ghazala, Mostafa M. Mokhtar, Hassan O. Waheeb, Deyaa E. M. Emam, Nader A. Bakr, Ahmed Z. I. Shehata

Summary: This study aims to investigate the activity of Galaxaura rugosa extracts against Anopheles pharoensis and non-target organisms, as well as to identify its chemical constituents using UPLC/ESI/MS.

MALARIA JOURNAL (2023)

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Article Parasitology

Expansion Microscopy of trichomonads

Paula Terra Bandeira, Sharmila Fiama das Neves Ortiz, Marlene Benchimol, Wanderley de Souza

Summary: Light microscopy has made significant advancements in fluorescence image resolution, particularly with the use of the Expansion Microscopy (ExM) technique. This article presents the application of ExM in two parasites, Trichomonas vaginalis and Tritrichomonas foetus, demonstrating improved localization of cytoskeleton-associated proteins through immunofluorescence microscopy. The ExM technique expands cells isotropically by embedding samples in a highly hydrophilic gel, resulting in a 4.5-fold expansion and a spatial resolution of approximately 70 nm. This new methodology allows for detailed observation of protozoa structural organization and enhanced resolution in the imaging of major proteins.

EXPERIMENTAL PARASITOLOGY (2023)

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Article Parasitology

Lychnopholide loaded in surface modified polylactide nanocapsules (LYC-PLA-PEG-NC) cure mice infected by Trypanosoma cruzi strain a prototype of resistance to benznidazole and nifurtimox: First insights of its mechanism of action

Matheus Marques Milagre, Fernanda Karoline Vieira da Silva Torchelsen, Tamiles Caroline Fernandes Pedrosa, Gabriel Marques Teixeira, Larissa Silva Sampaio, Renata Tupinamb, Vanessa Carla Furtado Mosqueira, Marta de Lana

Summary: This study fills some gaps in the research on lychnopholide nanoencapsulated LYC-PLA-PEG-NC (LYC-NC) and free LYC, and demonstrates LYC as a potential therapeutic option for Chagas disease.

EXPERIMENTAL PARASITOLOGY (2023)

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Article Parasitology

Development of a novel molecular tool to study molecular ecology of Ornithomya (Hippoboscidae) avian louse flies

Aleksandra Janiszewska, Maciej Bartos, Lukasz Trebicki, Magdalena Remisiewicz, Grzegorz Cierlik, Piotr Minias, Tomasz Rewicz

Summary: Louse flies are hematophagous ectoparasites of birds and mammals that have a significant impact on their hosts and can transmit bloodborne pathogens. This study developed a molecular tool to improve research on the genetic population structure and molecular ecology of louse flies.

EXPERIMENTAL PARASITOLOGY (2023)

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Article Parasitology

Increased copy number of the target gene squalene monooxygenase as the main resistance mechanism to terbinafine in Leishmania infantum

Fereshteh Fani, Marine Queffeulou, Philippe Leprohon, Marc Ouellette

Summary: In this study, we employed two genomic screens to investigate the mode of action and resistance mechanism of terbinafine against Leishmania parasite. The results revealed that ERG1 gene is the main target of terbinafine and gene amplification is the main resistance mechanism.

INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE (2023)

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Article Parasitology

Epidemiological, serological, and entomological aspects of visceral leishmaniasis (VL) in suspected new VL foci in Bangladesh

Debashis Ghosh, Md Utba Rashid, Soumik Kha Sagar, Md Rasel Uddin, Shomik Maruf, Prakash Ghosh, Rajashree Chowdhury, Md Abu Rahat, Md Nazmul Islam, M. M. Aktaruzzaman, Abu Nayeem Mohammad Sohel, Megha Raj Banjara, Axel Kroeger, Abraham Aseffa, Dinesh Mondal

Summary: The study aimed to explore the epidemiological, serological, and entomological aspects of visceral leishmaniasis (VL) in suspected new VL foci and assess the knowledge, attitude, and practices of the community living in the alleged new VL foci. The study found some areas with VL infection but no new active cases in the suspected new foci, highlighting the need for early detection and community awareness to control the spread of the disease.

ACTA TROPICA (2023)

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Article Parasitology

Both C57BL/KsJ (H2d haplotype) and CB10-H2 (H2b haplotype) mice are highly susceptible to congenital toxoplasmosis

Loyane Bertagnolli Coutinho, Mario Cezar de Oliveira, Ester Cristina Borges Araujo, Flavia Batista Ferreira Franca, Marcos Paulo Oliveira Almeida, Yusmaris Cariaco, Paulo Czarnewski, Neide Maria Silva

Summary: Congenital toxoplasmosis can lead to adverse pregnancy outcomes. This study found that C57BL/KsJ mice were more susceptible to congenital toxoplasmosis compared to CB10-H2 mice, and there were differences in systemic cytokine levels between the two mouse lineages.

ACTA TROPICA (2023)

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Article Parasitology

Classification and identification of mosquitoes in China based on rDNA 28S D5 region

Li Hu, Guodian Xiong, Yae Zhao, Rong Chai, Jiaxuan Xie, Yuyao Xiao, Yue Du, Juan Teng, Wanyu Zhang, Chenglin Guan

Summary: Accurate classification and identification of mosquitoes are crucial for preventing and controlling mosquito-borne diseases. This study examined mosquitoes from different cities in China and utilized morphological and molecular methods to identify and classify them. The results showed that the rDNA 28S D5 region can effectively distinguish different species of mosquitoes.

ACTA TROPICA (2023)

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Article Parasitology

Proteomic profile of the venom of three dark-colored Tityus (Scorpiones: Buthidae) from the tropical rainforests of Costa Rica

Cecilia Diaz, Marcela Serna-Gonzalez, Arturo Chang-Castillo, Bruno Lomonte, Fabian Bonilla, Adriana Alfaro-Chinchilla, Felipe Triana, Mahmood Sasa

Summary: The objective of this study was to examine the differences in venom peptide sequences of Tityus species in Costa Rican rainforests compared to T. cf. asthenes from Colombia. The results showed that the venom peptides of dark-colored Tityus in Costa Rica are similar to those found in other T. (Atreus) species from the region. This suggests that the level of toxicity caused by Tityus in Costa Rica should be similar to that caused by members of the same subgenus in other geographical locations. The lack of epidemiological evidence of medical emergencies caused by envenoming by this scorpion group in Costa Rica may be more related to ecological and demographic factors.

ACTA TROPICA (2023)

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Article Parasitology

Evaluation of isotype-based serology for diagnosis of Schistosoma mansoni infection in individuals living in endemic areas with low parasite burden

Fernanda do Carmo Magalha, Joao Marcelo Peixoto Moreira, Michelle Carvalho de Rezende, Vivian Favero, Carlos Graeff-Teixeira, Paulo Marcos Zech Coelho, Mariangela Carneiro, Stefan Michael Geiger, Deborah Negrao-Correa

Summary: Intestinal schistosomiasis is a chronic and debilitating disease that affects public health systems worldwide. Serum reactivity levels of different immunoglobulin isotypes can improve the diagnosis of infected individuals with low parasite loads.

ACTA TROPICA (2023)

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Article Ecology

Molecular and morphological confirmation of Profilicollis altmani as the cause of acanthocephalan peritonitis in California sea otters (Enhydra lutris nereis)

Richard E. Grewelle, Katherine Greenwald, Colleen Young, Melissa Miller

Summary: The cause of acanthocephalan peritonitis in southern sea otters has been unresolved for a long time. This study confirmed that P. altmani is the main species causing AP, and that P. kenti is synonymous with P. altmani. Another species, P. botulus, was found only in the intestinal lumen and not associated with peritonitis.

INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE (2023)

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Article Ecology

Molecular detection and characterization of Giardia spp., Cryptosporidium spp., and Blastocystis in captive wild animals rescued from central Colombia

Lissa Cruz-Saavedra, Vivian Alejandra Arevalo, Diego Garcia-Corredor, Paula Andrea Jimenez, Laura Vega, Martin Pulido-Medellin, Melissa Ortiz-Pineda, Juan David Ramirez

Summary: This study investigated the prevalence of intestinal parasites in Colombian wild animals and found that Cryptosporidium, Giardia, and Blastocystis were the most commonly found parasites, with co-infections also observed.

INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE (2023)

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