Rhodnius prolixusimmune responses following parasite infection and interactions with microbiota

2016 ◽  
Author(s):  
Daniele Pereira Castro
Keyword(s):  
Parasite Infection

STUDY ON THE RELATIONSHIP BETWEEN PARASITIC INFECTION AND KNOWLEDGE, HYGIENIC PRACTICAL MEASURES OF PARASITIC INFECTIOUS PREVENTION IN VINH THAI COMMUNITY

2017 ◽  
pp. 119-124
Author(s):  
Keyword(s):  
Health Education ◽  
Risk Behaviors ◽  
Ascaris Lumbricoides ◽  
Intestinal Parasite ◽  
Parasitic Infection ◽  
Parasite Infection ◽  
Intestinal Parasite Infection ◽  
Before And After ◽  
Parasite Infections ◽  
The Relationship

Introduction: Intestinal parasite infections werecommonintropical country such as Vietnam. Having good knowledge of parasitic infectious prevention and changing risk behaviors can decrease the infection rate. Objective: To evaluate the parasitic infectious rate in Vinh Thai community before and after being health education and the changing of knowledge of parasitic infectious prevention and risk behaviors. Materials and methods: 60 households in Vinh Thai commune were interviewed their knowledge of parasitic infectious prevention and examined intestinal parasite infection by Kato technique and then trained the knowledge of parasitic infectious prevention. The interview and examination parasite infectiousrate were carried out after 6 months to evaluating their knowledge. Result: Before health education, the rate of intestinal parasite infection was 17.4% with the prevalence of Ascaris lumbricoides, hookworm, whipworm, pinworm, small fluke worm and co-infection with A. lumbricoides - whipworm, hookworm-whipworm were 0.1%; 8.0%; 5.8%; 0.6%; 0.3%; 1.2% and 3.0% respectively. Six months later the rate of intestinal parasite infection was decreased in 12.6% even though not statistical significantly. However, there were no case of small fluke worm and co-infection with hookworm-whipworm. Receiving health education, their knowledge of parasitic infectious prevention was higher significantly but their risk behaviors were not changed so much. Conclusion: Health education can change the rate of parasite infection with higher knowledge of parasitic infectious prevention but it was necessary continuous study to change the risk behaviors. Key words: intestinal parasite, health education

scholarly journals Development of a rapid and sensitive immunochromatographic strip based on EuNPs-ES fluorescent probe for the detection of early Trichinella spiralis-specific IgG antibody in pigs

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Xinyu Wang ◽  
Bin Tang ◽  
Ying Zhao ◽  
Jing Ding ◽  
Nan Wang ◽  
...  
Keyword(s):  
Test Line ◽  
Trichinella Spiralis ◽  
Parasite Infection ◽  
Igg Antibody ◽  
Immunochromatographic Strip ◽  
Muscle Larvae ◽  
Zoonotic Parasite ◽  
Circulating Antibodies ◽  
Novel Method ◽  
Specific Igg

AbstractTrichinellosis, which is caused by nematodes of the genus Trichinella, is one of the most important zoonotic parasite diseases in the world. A rapid and sensitive immunochromatographic strip (ICS) based on Eu (III) nanoparticles (EuNPs) was developed for the detection of Trichinella spiralis (T. spiralis) infection in pigs. T. spiralis muscle larvae excretory secretory or preadult worm excretory secretory (ML-ES or PAW-ES) antigens were conjugated with EuNPs probes to capture T. spiralis-specific antibodies in pig sera, after which the complex bound to mouse anti-pig IgG deposited on the test line (T-line), producing a fluorescent signal. In the pigs infected with 100, 1000 and 10 000 ML, seroconversion was first detectable for the EuNPs-ML-ES ICS at 30, 25 and 21 days post-infection (dpi) and for the EuNPs-PAW-ES ICS at 25, 21 and 17 dpi. These results show that EuNPs-PAW-ES ICS detects anti-Trichinella IgG in pigs 4–5 days earlier that test using ML-ES antigens. Our ICS have no cross reaction with other parasite infection sera. Furthermore, the detection process could be completed in 10 min. This study indicated that our ICS can be used for the detection of the circulating antibodies in early T. spiralis infection and provide a novel method for on-site detection of T. spiralis infection in pigs.

Dispersion and abundance of Maritrema arenaria in Semibalanus balanoides in north-east Ireland

1990 ◽  
Vol 64 (2) ◽  
pp. 151-160 ◽  
Author(s):  
H. Carrol ◽  
W. I. Montgomery ◽  
R. E. B. Hanna
Keyword(s):  
Size Structure ◽  
Background Level ◽  
Host Population ◽  
Parasite Infection ◽  
Semibalanus Balanoides ◽  
Low Background ◽  
Digenean Trematode ◽  
North East ◽  
Parasitic Burden ◽  
A Site

ABSTRACTInfection of the barnacle Semibalanus balanoides with the digenean trematode Maritrema arenaria was investigated at 17 sites along the Co. Down coastline. There was a low background level of infection. Abundance of M. arenaria, however, was substantially greater at sites close to fish factories and at a site close to a sewage works. Aggregation of M. arenaria in S. balanoides was least marked at low mean parasite burdens. The parasitic burden was related more closely to barnacle size at a site of heavy infection than at one with a low abundance. There was a significant association between height on the shore and number of encysted metacercariae in S. balanoides. This was independent of variation in host size. It is concluded that relationships that bring about overdispersion of digeneans, such as that between the size-structure of the host population and parasite infection, may be dependent on the overall abundance of the parasite.

scholarly journals Urogenital Schistosomiasis—History, Pathogenesis, and Bladder Cancer

2021 ◽  
Vol 10 (2) ◽  
pp. 205
Author(s):  
Lúcio Lara Santos ◽  
Júlio Santos ◽  
Maria João Gouveia ◽  
Carina Bernardo ◽  
Carlos Lopes ◽  
...  
Keyword(s):  
Schistosoma Haematobium ◽  
Historical Perspective ◽  
Hiv Transmission ◽  
Parasite Infection ◽  
Urogenital Schistosomiasis ◽  
Host Parasite Interactions ◽  
Immunodeficiency Virus ◽  
Recent Outbreak ◽  
Host Parasite ◽  
Female Genital

Schistosomiasis is the most important helminthiasis worldwide in terms of morbidity and mortality. Most of the infections occurs in Africa, which about two thirds are caused by Schistosoma haematobium. The infection with S. haematobium is considered carcinogenic leading to squamous cell carcinoma (SCC) and urothelial carcinoma of the urinary bladder. Additionally, it is responsible for female genital schistosomiasis leading to infertility and higher risk of human immunodeficiency virus (HIV) transmission. Remarkably, a recent outbreak in Corsica (France) drew attention to its potential re-mergence in Southern Europe. Thus far, little is known related to host-parasite interactions that trigger carcinogenesis. However, recent studies have opened new avenues to understand mechanisms on how the parasite infection can lead cancer and other associated pathologies. Here, we present a historical perspective of schistosomiasis, and review the infection-associated pathologies and studies on host–parasite interactions that unveil tentative mechanisms underlying schistosomiasis-associated carcinogenesis.

scholarly journals Strongyloides stercoralis Infestation in a Child: How a Nematode Can Affect Gut Microbiota

2021 ◽  
Vol 22 (4) ◽  
pp. 2131
Author(s):  
Stefania Pane ◽  
Anna Sacco ◽  
Andrea Iorio ◽  
Lorenza Romani ◽  
Lorenza Putignani
Keyword(s):  
Gut Microbiota ◽  
Bacterial Species ◽  
Alpha Diversity ◽  
Strongyloides Stercoralis ◽  
Pulmonary Involvement ◽  
Diversity Indices ◽  
Parasite Infection ◽  
Intestinal Nematode ◽  
Immune Mediated ◽  
Stool Samples

Background: Strongyloidiasis is a neglected tropical disease caused by the intestinal nematode Strongyloides stercoralis and characterized by gastrointestinal and pulmonary involvement. We report a pediatric case of strongyloidiasis to underline the response of the host microbiota to the perturbation induced by the nematode. Methods: We performed a 16S rRNA-metagenomic analysis of the gut microbiota of a 7-year-old female during and after S. stercolaris infection, investigating three time-point of stool samples’ ecology: T0- during parasite infection, T1- a month after parasite infection, and T2- two months after parasite infection. Targeted-metagenomics were used to investigate ecology and to predict the functional pathways of the gut microbiota. Results: an increase in the alpha-diversity indices in T0-T1 samples was observed compared to T2 and healthy controls (CTRLs). Beta-diversity analysis showed a shift in the relative abundance of specific gut bacterial species from T0 to T2 samples. Moreover, the functional prediction of the targeted-metagenomics profiles suggested an enrichment of microbial glycan and carbohydrate metabolisms in the T0 sample compared with CTRLs. Conclusions: The herein report reinforces the literature suggestion of a putative direct or immune-mediated ability of S. stercolaris to promote the increase in bacterial diversity.

Intestinal Parasite Infection in the Kampuchean Refugee Population 6 Years after Resettlement in Canada

1992 ◽  
Vol 166 (2) ◽  
pp. 413-417 ◽  
Author(s):  
T. W. Gyorkos ◽  
J. D. MacLean ◽  
P. Viens ◽  
C. Chheang ◽  
E. Kokoskin-Nelson
Keyword(s):  
Intestinal Parasite ◽  
Parasite Infection ◽  
Refugee Population ◽  
Intestinal Parasite Infection
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