Succinic and Lactic Acids Present in the Protonephridial Canal Fluid of Hymenolepis diminuta

1972 ◽  
Vol 58 (2) ◽  
pp. 410 ◽  
Author(s):  
Lesley A. Webster
Keyword(s):  
Hymenolepis Diminuta ◽  
Lactic Acids

scholarly journals Worm expulsion is independent of alterations in composition of the colonic bacteria that occur during experimental Hymenolepis diminuta-infection in mice

Gut Microbes ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 497-510
Author(s):  
Adam Shute ◽  
Arthur Wang ◽  
Timothy S. Jayme ◽  
Marc Strous ◽  
Kathy D. McCoy ◽  
...  
Keyword(s):  
Hymenolepis Diminuta ◽  
Colonic Bacteria ◽  
Worm Expulsion

scholarly journals Helminth Interactions with Bacteria in the Host Gut Are Essential for Its Immunomodulatory Effect

2021 ◽  
Vol 9 (2) ◽  
pp. 226
Author(s):  
Milan Jirků ◽  
Zuzana Lhotská ◽  
Lucia Frgelecová ◽  
Oldřiška Kadlecová ◽  
Klára Judita Petrželková ◽  
...  
Keyword(s):  
Protective Effect ◽  
Intestinal Inflammation ◽  
Hymenolepis Diminuta ◽  
Clinical Parameters ◽  
Th2 Response ◽  
Histological Changes ◽  
Immunological Markers ◽  
Bacterial Microbiota ◽  
Inflammatory Effect

Colonization by the benign tapeworm, Hymenolepis diminuta, has been associated with a reduction in intestinal inflammation and changes in bacterial microbiota. However, the role of microbiota in the tapeworm anti-inflammatory effect is not yet clear, and the aim of this study was to determine whether disruption of the microflora during worm colonization can affect the course of intestinal inflammation. We added a phase for disrupting the intestinal microbiota using antibiotics to the experimental design for which we previously demonstrated the protective effect of H. diminuta. We monitored the immunological markers, clinical parameters, bacterial microbiota, and histological changes in the colon of rats. After a combination of colonization, antibiotics, and colitis induction, we had four differently affected experimental groups. We observed a different course of the immune response in each group, but no protective effect was found. Rats treated with colonization and antibiotics showed a strong induction of the Th2 response as well as a significant change in microbial diversity. The microbial results also revealed differences in the richness and abundance of some bacterial taxa, influenced by various factors. Our data suggest that interactions between the tapeworm and bacteria may have a major impact on its protective effect.

Photooxidation at Platinum Colloidal TiO2 Aqueous-Solution Interfaces. I. Ethylenediaminetetraacetic Acid and Related-Compounds

1986 ◽  
Vol 39 (5) ◽  
pp. 757 ◽  
Author(s):  
DN Furlong ◽  
D Wells ◽  
WHF Sasse
Keyword(s):  
Carbon Dioxide ◽  
Aqueous Solution ◽  
Ethylenediaminetetraacetic Acid ◽  
Oxidation Potential ◽  
Illumination Time ◽  
Carbonium Ions ◽  
Production Of Hydrogen ◽  
Glycine Derivatives ◽  
Lactic Acids ◽  
Exhaustive Oxidation

The photooxidation of ethylenediaminetetraacetic acid ( edta ) and related glycine derivatives, at Pt/TiO2/aqueous solution interfaces, has been monitored via the production of hydrogen and carbon dioxide. Yields are consistent with the exhaustive oxidation of methoxycarbonyl groups and the rate varied with the number and distribution of such groups. A photooxidation pathway is proposed which involves the oxidation of intermediate carbonium ions. Plausible molecular intermediates, such as formic acid and formaldehyde in the case of edta , have been shown in separate experiments to be photooxidized according to the proposed pathway. The maximum rate of oxidation for each donor depends on its oxidation potential and its tendency to adsorb on TiO2 surfaces. Desorption due to pH increase, as well as consumption of the donor, causes the rate to decline rapidly with illumination time. Acetic and malonic acids gave some hydrogen but underwent mainly (> c. 80%) photo-Kolbe decarboxylation to yield carbon dioxide and methane. By contrast the oxidation of oxomalonic, pyruvic and lactic acids proceeded mainly via a H2 producing pathway similar to that established for edta. The oxidation of pyruvic and lactic acids ceased at a yield of one mole of CO2 per mole of acid.

scholarly journals Subacute Ruminal Acidosis in Zebu Cattle: Clinical and Behavioral Aspects

Animals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 21
Author(s):  
Natalia Sato Minami ◽  
Rejane Santos Sousa ◽  
Francisco Leonardo Costa Oliveira ◽  
Mailson Rennan Borges Dias ◽  
Débora Aparecida Cassiano ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Dry Matter ◽  
Short Chain Fatty Acids ◽  
Clinical Aspects ◽  
Zebu Cattle ◽  
Subacute Ruminal Acidosis ◽  
Ruminal Ph ◽  
Ruminal Acidosis ◽  
Citrus Pulp ◽  
Lactic Acids

We evaluated the clinical aspects and feeding behavior of cattle with subacute ruminal acidosis (SARA) caused by short-chain fatty acids (SCFAs). Ten healthy Nelore heifers were subjected to an adjusted SARA induction protocol using citrus pulp (CP). Clinical examinations were performed at baseline and at 3, 6, 9, 12, 15, 18, and 24 h intervals after induction, with ruminal fluid, blood, and feces sampling. The animals’ feeding behavior was evaluated on, before, and for 3 days after SARA by observing the animals every 5 min for 24 h. The dry matter intake (DMI) was recorded daily. The ruminal pH during SARA was always lower than baseline, with an acidotic duration of 547 ± 215 min, a minimum pH of 5.38 ± 0.16, and an average pH of 5.62 ± 0.1. SARA was mainly caused by SCFAs (maximum 118.4 ± 9.3 mmol/L), with the production of l-lactic acids (7.17 mmol/L) and d-lactic acids (0.56 mmol/L) 6 h after the experiment began. The DMI was reduced by 66% and 48% on days 1 and 2, respectively, and returned to normal levels on day 3. SARA caused a reduction in feed intake and rumination time, as well as an increase in the time spent in decubitus on days 1 and 2. These results were influenced by the ruminal pH, ruminal movement, and osmolarity. Furthermore, SARA caused different degrees of depression, which became more pronounced with higher ruminal lactic acid concentrations.

Metabolic transition in the development of Hymenolepis diminuta (Cestoda)

1998 ◽  
Vol 84 (10) ◽  
pp. 777-782 ◽  
Author(s):  
C. F. Fioravanti ◽  
D. J. Walker ◽  
P. S. Sandhu
Keyword(s):  
Hymenolepis Diminuta ◽  
Metabolic Transition

scholarly journals A case of Hymenolepis diminuta in a young male from Odisha

2013 ◽  
Vol 3 (2) ◽  
pp. 145 ◽  
Author(s):  
T Karuna ◽  
Sagar Khadanga
Keyword(s):  
Young Male ◽  
Hymenolepis Diminuta
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