Phosphatidylcholine
Mostrando 1-12 de 1023 artigos, teses e dissertações.
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1. Biomechanical and biochemical investigation of erythrocytes in late stage human leptospirosis
Leptospirosis is a zoonotic disease caused by bacteria of the genus Leptospira, which can cause lipid changes in the erythrocyte membrane. Optical tweezers were used to characterize rheological changes in erythrocytes from patients with leptospirosis in the late stage. Biochemical methods were also used for quantification of plasma lipid, erythrocyte membran
Braz J Med Biol Res. Publicado em: 2020-08
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2. Does the sequence of addition of herbicide and adjuvants to the spray solution influence sicklepod control?
RESUMO O uso de adjuvantes associados a herbicidas visa melhorar o desempenho da aplicação e o consequente aumento do efeito biológico do tratamento. Porém, a ordem de adição dos produtos ao tanque do pulverizador pode trazer importantes influências à calda fitossanitária. Assim, o objetivo desta pesquisa foi avaliar o controle de Senna obtusifolia
Arq. Inst. Biol.. Publicado em: 28/11/2019
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3. Evaluation of an herbal choline feed plant additive in lamb feedlot rations
ABSTRACT An experiment was carried out to evaluate the effect of an herbal choline feed plant additive on the productive parameters and blood metabolites of finishing lambs. Forty male Hampshire × Suffolk lambs (initial body weight of 30.36±3.75 kg) were assigned according to a completely randomized design. Treatments consisted of dietary inclusion of the
R. Bras. Zootec.. Publicado em: 11/11/2019
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4. Effect of Pesticide Addition Sequence on the Preparation of Phytosanitary Spray Solutions
RESUMO: A adição de adjuvantes às caldas herbicidas visa preservar ou aumentar o efeito biológico do tratamento, porém é comumente realizada sem conhecimento das interações físico-químicas entre os produtos. Assim, objetivou-se neste trabalho avaliar os efeitos sobre a tensão superficial e o ângulo de contato decorrentes de diferentes sequências
Planta daninha. Publicado em: 09/09/2019
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5. Phospholipid composition and resistance to vitrification of in vivo blastocyst of a Brazilian naturalized porcine breed
RESUMO Blastocistos de suínos foram submetidos ao MALDI-TOF para se identificarem os principais fosfolipídios (PL). Depois, parte destes embriões (D6) foram vitrificados (n=52), ou permaneceram frescos (grupo controle, n=42). Após o aquecimento, os blastocistos foram cultivados in vitro para se avaliar a reexpansão e a eclosão (BE) às 24 e 48 horas. F
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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6. The efficacy of saxagliptin in T2DM patients with non-alcoholic fatty liver disease: preliminary data
RESUMO OBJETIVO Investigar a eficácia clínica e os possíveis mecanismos da saxagliptina no tratamento do diabetes mellitus tipo 2 (DM2) associado à doença hepática gordurosa não alcoólica (DHGNA). MÉTODOS Um total de 95 DM2 combinados com pacientes com DHGNA foram aleatoriamente divididos em grupo A (grupo saxagliptina), grupo B (grupo glimepiri
Rev. Assoc. Med. Bras.. Publicado em: 2019-01
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7. Study on the Application of Electric Field to Giant Vesicles Comprised of 1,2-Dilauroyl-Sn-Glycero-3-Phosphatidylcholine Using Optical Fluorescence Microscopy
The influence of alternating electric field (AC) in the structure and dynamics of giant unilamellar vesicles (GUVs) comprised of 1,2-dilauroyl-sn-glycero-3-phosphatidylcholine (DLPC) is reported. The investigations were conducted by using optical fluorescence microscopy as the method of analysis. The lipid membrane of the DLPC GUVs at the fluid phase can be
Mat. Res.. Publicado em: 18/05/2017
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8. Dietary Supplementation of Alternative Methionine and Choline Sources in the Organic Broiler Production in Brazil
ABSTRACT The objective of this study was to evaluate the use of natural and alternative sources of methionine and choline which can be allowed to use in organic livestock systems to feed broilers produced in Brazil. Seven hundred and twenty one-d-old male Cobb broilers were randomly allocated to four treatments with six replicates of 24 birds each. The treat
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
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9. Antioxidant effect of 4-nerolidylcatechol and α-tocopherol in erythrocyte ghost membranes and phospholipid bilayers
4-Nerolidylcatechol (4-NC) is found in Pothomorphe umbellataroot extracts and is reported to have a topical protective effect against UVB radiation-induced skin damage, toxicity in melanoma cell lines, and antimalarial activity. We report a comparative study of the antioxidant activity of 4-NC and α-tocopherol against lipid peroxidation initiated by two fre
Braz J Med Biol Res. Publicado em: 06/09/2013
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10. Leishmania amazonensis exhibits phosphatidylserine-dependent procoagulant activity, a process that is counteracted by sandfly saliva
Leishmania parasites expose phosphatidylserine (PS) on their surface, a process that has been associated with regulation of host's immune responses. In this study we demonstrate that PS exposure by metacyclic promastigotes of Leishmania amazonensis favours blood coagulation. L. amazonensis accelerates in vitro coagulation of human plasma. In addition, L. am
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-09
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11. Mecanismos moleculares da ação tóxica pró-oxidante de 1,4-diamino-2-butanona, um análogo de putrescina, sobre células de mamíferos e Trypanosoma cruzi / The Molecular mechanisms of pro-oxidant activity of 1,4-diamino-2-butanone, a putrescine analogue, to mammalian cells and Trypanosoma cruzi
α-Aminocarbonyl componds such as 5-aminolevunilic acid (ALA) and aminoacetone (AA) have been shown to exhibit pro-oxidant properties. These compounds undergo phosphate-catalyzed enolization in physiological pH and subsequent aerobic oxidation, yielding reactive oxygen species, NH4+ ions and an α-oxoaldehyde highly cytotoxic. The α-aminoketone 1
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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12. The termal influence on the dynamics of cell membranes: a contribution to the conservation of Steindachneridion parahybae (Siluriformes: Pimelodidae), a threatened species of fish / A influência térmica na dinâmica das membranas celulares: uma contribuição na conservação de Steindachneridion parahybae (Siluriformes: Pimelodidae), uma espécie de peixe ameaçada de extinção
Temperature is the most important environmental factor affecting the activity of ectothermic animals such as fish. Compensatory adjustments to temperature occur with time courses ranging from less than a minute to more than a month, and membranes are the first targets affected by change of temperature, and their lipid components respond immediately to this c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/06/2012