13 documents found, page 1 of 2

Strongyloides venezuelensis: efeito de antimicrobiano e imunossupressor no curs...

Submitted by ROBERTO PAULO CORREIA DE ARAÚJO (ppgorgsistem@ufba.br) on 2017-06-01T19:15:21Z No. of bitstreams: 1 11_v.8_3.pdf: 600434 bytes, checksum: e7b46126669b1be1fbbd4677124fecc0 (MD5); Made available in DSpace on 2017-06-01T19:15:21Z (GMT). No. of bitstreams: 1 11_v.8_3.pdf: 600434 bytes, checksum: e7b46126669b1be1fbbd4677124fecc0 (MD5) Previous issue date: 2009-09; Camundongos da linhagem AKR/J infectado...

Investigating acid stress response in different saccharomyces strains.

Yeast cells need to respond to a variety of stresses found in such different conditions as gastrointestinal tract after probiotic ingestion or fermentation vat during ethanol production. In the present study, H+ neutralisation capacity, membrane fatty acid composition, H+-ATPase activity, and cytosolic Ca2+ concentration were evaluated in yeast cells used for probiotic (Saccharomyces boulardii) and laboratory (...

Glucose induced activation of the plasma membrane ATPase in Fusarium oxysporum.

Addition of glucose and other sugars to derepressed cells of the fungus Fusarium oxysporum var. Zini triggered activation of the plasma membrane H+-ATPase within 5 min. Glucose was the best activator while galactose and lactose had a lesser effect. The activation was not prevented by previous addition of cycloheximide and it was fully reversible when the glucose was removed. The activation process in uiuo also ...

Vitamin D overload and experimental Trypanosoma cruzi infection : parasitologic...

l. Six groups of 45-day-old, 23.0 & 1.7 g, female Balb/c mice were inoculated intraperitoneally with 63, 252, 440, 630, 2520 or 6300 I.U. of vitamin D for 6 days. A seventh group was inoculated with saline. Each group consisted of 30 animals. 2. All animals inoculated with the doses of 2520 and 6300 and 70% of mice which received 630 I.U. of vitamin D died 21 days after the first administration of the vitamin. ...

The effect of iron deficiency and iron overload on the evolution of chagas dise...

l. CFW mice were fed either on control diet or on iron-deficient diet. 2. After 5 months the mice were infected with CL, Y or YuYu strain of Trypanosoma cruzi. 3. On the fifth day after the infection, the mice on control diet were divided in three groups: one group remained as controls, two groups were injected either with desferrioxamine or iron-dextran. 4. The severity of the disease was evaluated by parasite...

Lactobacillus delbrueckii UFV-H2b20 induces type 1 cytokine production by mouse...

The effect of iron nutritional status on Trypanosoma cruzi infection in germfre...

1. Conventional (CV) and gnotobiotic (GN) female CFW mice were infected with the Y strain of Trypanosoma cruzi. 2. After infection, both CV and GN groups received injections of iron-dextran or desferrioxamine. Non-injected mice served as controls. 3. The parasitemia was more intense in iron-dextran-treated mice. 4. The iron levels in serum, liver, and spleen were: (a) not decreased by desferrioxamine and (b) in...

American trypanosomiasis (chagas' disease) in conventional and germfree rats an...

Effect of the trehalose levels on the screening of yeast as probiotic by in viv...

Probiotics are viable defined microorganisms (bacteria or yeasts) that exert a beneficial effect on the health of the host when ingested in adequate amounts. Screening for such biotherapeutic agents is commonly performed by in vitro assays simulating gastrointestinal environment to determine the ability to survive in the digestive tract. In the present study, the possibility of extrapolation of data obtained in...

Trypanosoma cruzi : influence of predominant bacteria from indigenous digestive...

To verify the inXuence of some predominant components from indigenous microbiota on systemic immunological responses during experimental Chagas disease, germ-free NIH Swiss mice were mono-associated with Escherichia coli, Enterococcus faecalis, Bacteroides vulgatus or Peptostreptococcus sp. and then infected with the Y strain of Trypanosoma cruzi. All the mono-associations predominantly induced a Th1 type of sp...