Spicule Length in Cooperia curticei as a Measure of Favorable Intestinal Environment for This Intestinal Nematode of Sheep

1941 ◽  
Vol 27 (5) ◽  
pp. 449 ◽  
Author(s):  
J. H. Tetley
Keyword(s):  
Intestinal Environment ◽  
Spicule Length ◽  
Intestinal Nematode

231-LB: Importance of Intestinal Environment and Cellular Plasticity of Beta Cells in the Development of Post-Pancreatectomy Diabetes

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 231-LB
Author(s):  
RYOTARO BOUCHI ◽  
TATSUYA FUKUDA ◽  
TAKATO TAKEUCHI ◽  
KIKUKO AMO-SHIINOKI ◽  
KATSUYA TANABE ◽  
...  
Keyword(s):  
Beta Cells ◽  
Cellular Plasticity ◽  
Intestinal Environment

Microbiological Performance of Multi-Stage Stabilization Ponds for Effluent Use in Agriculture

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1517-1524 ◽  
Author(s):  
M. M. Saqqar ◽  
M. B. Pescod
Keyword(s):  
Environmental Parameters ◽  
Complete Removal ◽  
Faecal Coliform ◽  
Winter Period ◽  
Intestinal Nematode ◽  
Stabilization Ponds ◽  
Multi Stage ◽  
Guideline Value ◽  
Temperature Dependent Model ◽  
Egg Removal

The paper presents data on total and faecal coliform removal and on intestinal nematode egg removal achieved in the Al-Samra stabilization ponds in Jordan during the winter period December 1986 to March 1987. A total retention of 34 days in the series of 10 ponds was able to achieve complete removal of nematode eggs at the pond temperature 12-15°C but was not able to meet the WHO guideline value for faecal conforms of ≤ 1000/100 ml. In addition to retention time having a positive effect on faecal conform die-off, it was shown that surface organic loading, pond pH, BOD5 concentration, and depth, influenced the rate of faecal coliform die-off. It became apparent that interactions existed among the operational and environmental parameters but that the simple time-and-temperature-dependent model for faecal conform die-off was no longer appropriate.

scholarly journals Helminth infections in the US military: from strongyloidiasis to schistosomiasis

2021 ◽  
Author(s):  
Alyssa R Lindrose ◽  
Indrani Mitra ◽  
Jamie Fraser ◽  
Edward Mitre ◽  
Patrick W Hickey
Keyword(s):  
Military Personnel ◽  
International Classification Of Diseases ◽  
Data Repository ◽  
Military Health ◽  
Intestinal Nematode ◽  
Us Military ◽  
Helminth Infections ◽  
The Us ◽  
East And Southeast Asia ◽  
The Military

Abstract Background Helminth infections caused by parasitic worms, including nematodes (roundworms), cestodes (tapeworms) and trematodes (flukes), can cause chronic symptoms and serious clinical outcomes if left untreated. The US military frequently conducts activities in helminth-endemic regions, particularly Africa, the Middle East and Southeast Asia. However, the military does not currently screen for these infections, and to date, no comprehensive surveillance studies have been completed to assess the frequency of helminth diagnoses in the military personnel and their families. Methods To determine the burden of helminth infections in the US Military Health System (MHS), we conducted a retrospective analysis of International Classification of Diseases (ICD)-9/10 diagnosis codes from all medical encounters in the MHS Data Repository (MDR) from fiscal years (FY) 2012 to 2018. Chart reviews were conducted to assign ICD diagnoses as incorrect, suspected, probable or confirmed based on the laboratory results and symptoms. Results Abstraction of MHS data revealed over 50 000 helminth diagnoses between FY 2012 and FY 2018. Of these, 38 445 of diagnoses were amongst unique subjects. After chart review, we found there were 34 425 validated helminth infections diagnosed amongst the unique subjects of US military personnel, retirees and dependents. Nearly 4000 of these cases represented infections other than enterobiasis. There were 351 validated strongyloidiasis diagnoses, 317 schistosomiasis diagnoses and 191 diagnoses of cysticercosis during the study period. Incidence of intestinal nematode infection diagnoses showed an upward trend, whilst the incidence of cestode infection diagnoses decreased. Conclusions The results of this study demonstrate that helminth infections capable of causing severe morbidity are often diagnosed in the US military. As helminth infections are often asymptomatic or go undiagnosed, the true burden of helminth infections in US military personnel and dependents may be higher than observed here. Prospective studies of US military personnel deployed to helminth-endemic areas may be indicated to determine if post-deployment screening and/or empirical treatment are warranted.

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.

Morphometrics and molecular analysis ofOzolaimus linstowin. sp. (Oxyuroidea: Pharyngodonidae) from the green lizardIguana iguana

2015 ◽  
Vol 90 (2) ◽  
pp. 186-198 ◽  
Author(s):  
S.V. Malysheva
Keyword(s):  
Body Size ◽  
Large Subunit ◽  
Buccal Capsule ◽  
Small Subunit ◽  
Present Species ◽  
Lsu Rdna ◽  
Adult Males ◽  
Spicule Length ◽  
Males And Females ◽  
Characteristic Features

AbstractOzolaimus linstowin. sp. is described from the large intestine ofIguana iguanaLinnaeus, 1758 from Mexico. The present species can be easily distinguished fromO. megatyphlonandO. cirratusby the presence of a long and slender pharynx not divided into sections, more similar to the remaining two species,O. monhysteraandO. ctenosauri. Ozolaimus linstowin. sp. can be differentiated fromO. monhysteraby the shorter spicule length and smaller body size of both males and females. Males ofO. linstowin. sp. are morphologically close to those ofO. ctenosauri, but females possess a markedly smaller body size and differ in the organization of the oral cuticular armature. Adult males ofO. linstowin. sp. bear some characteristic features of the J3 juvenile morphology in terms of the cuticular organization of the oral and buccal capsule. Phylogenetic analysis ofO.linstowin. sp. using partial small subunit (SSU) and D2–D3 large subunit (LSU) rDNA shows relationships with several Oxyuridae genera.

scholarly journals Key Roles for Specific and Nonspecific Antibody in Intestinal Nematode Expulsion

2008 ◽  
Vol 4 (4) ◽  
pp. 303-305 ◽  
Author(s):  
William G.C. Horsnell ◽  
Frank Brombacher
Keyword(s):  
Intestinal Nematode
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