Polyamines
Mostrando 1-12 de 411 artigos, teses e dissertações.
-
1. Spontaneous vegetative propagules differentiation in Bowdichia virgilioides seedlings maintained at MS basal medium
ABSTRACT Bowdichia virgilioides Kunth is a medium size tree used in folk medicine and in furniture manufacturing which makes it a target of extractive processes. The aim of this work was to evaluate the endogenous content of polyamines, amino acids, and sugars in seedlings of Bowdichia virgilioides that presented or not the development of spontaneously diffe
Rev. Ceres. Publicado em: 2021-02
-
2. Decreased plasmatic spermidine and increased spermine in mild cognitive impairment and Alzheimer’s disease patients
Abstract Background Current evidence suggests that upregulation of polyamines system plays a role both in cognitive deficit and synaptic loss observed in Alzheimer’s disease (AD). Objective The aim of this study was to determine the plasmatic concentration of polyamines in mild cognitive impairment (MCI) and AD patients in comparison with healthy contr
Arch. Clin. Psychiatry (São Paulo). Publicado em: 25/11/2019
-
3. Regulators, culture media and types of lights in vitro lavender culture
RESUMO: Lavanda é uma planta ornamental aromática que é amplamente utilizada nas indústrias de perfumaria, farmacêutica, cosmética e alimentícia e por isso é importante estudar maneiras de promover a produção dessa matéria-prima. Para tanto, foram realizados quatro experimentos com o objetivo de estudar a germinação e o desenvolvimento inicial
Cienc. Rural. Publicado em: 21/10/2019
-
4. Intravitreal injection of the synthetic peptide LyeTx I b, derived from a spider toxin, into the rabbit eye is safe and prevents neovascularization in a chorioallantoic membrane model
Abstract Background: The great diversity of molecules found in spider venoms include amino acids, polyamines, proteins and peptides, among others. Some of these compounds can interact with different neuronal receptors and ion channels including those present in the ocular system. To study potential toxicity and safety of intravitreal injection in rabbits of
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 17/12/2018
-
5. Characterization of Leiurus abdullahbayrami (Scorpiones: Buthidae) venom: peptide profile, cytotoxicity and antimicrobial activity
Background Scorpion venoms are rich bioactive peptide libraries that offer promising molecules that may lead to the discovery and development of new drugs. Leiurus abdullahbayrami produces one of the most potent venoms among Turkish scorpions that provokes severe symptoms in envenomated victims. Methods In the present study, the peptide profile of the v
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 02/12/2014
-
6. Efeito do fator de crescimento insulina-símile-I em promastigota e amastigota intracelular de Leishmania (Viannia) braziliensis de pacientes com diferentes formas clínicas de leishmaniose tegumentar americana / Effect of Insulin-like growth factor-I on promastigotes and intracellular amastigotes of Leishmania (Viannia) braziliensis from patients with different clinical forms of American tegumentary leishmaniasis
Leishmaniasis are diseases caused by protozoa of the genus Leishmania that may manifest as cutaneous or visceral disease. In Brazil, American tegumentary leishmaniasis (ATL) is caused mostly by Leishmania (Viannia) braziliensis and cutaneous (CL), mucosal (ML) and disseminated (DL) forms of the disease are known.The diversity of clinical manifestations has b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2012
-
7. Metais traço e aminas bioativas em alface proveniente da agricultura urbana
Urban agriculture is an activity being practiced in every city of the world. Its practice has provided several benefits to growers, among them, availability of fresh vegetables, source of vitamins, minerals and bioactive compounds such as polyamines, which have shown antioxidant activity. However, urban agriculture can be a risk in case the vegetables are co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/05/2012
-
8. Arcaine-induced state-dependent memory involves opioid mechanisms in rats / ENVOLVIMENTO DO SISTEMA OPIÓIDE NA DEPENDÊNCIA DE ESTADO INDUZIDA PELA ARCAÍNA EM RATOS
Arcaine is a competitive antagonist of the polyamine binding site at the NMDA receptor which induces state-dependent recall. However, no study has addressed the involvement of other neurotransmitter/neuromodulators in arcaine-induced state dependency. The current study investigates whether the opioid system is involved in arcaine-induced state-dependent memo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2011
-
9. STUDY OF COPPER(II) AND ZINC(II) COMPLEXES WITH SOME POLYAMINES AND PHOSPHOCREATINE OR ATP / ESTUDO DE COMPLEXOS DE COBRE(II) E ZINCO(II) COM ALGUMAS POLIAMINAS E A FOSFOCREATINA OU O ATP
Foram estudados alguns sistemas binários de Cu(II) e Zn(II) formados com as poliaminas (PA= En, Tn, Put, Spd e Spm) e os complexos ternários (MLPA), onde L foi a PCr ou o ATP e PA uma das cinco poliaminas. O estudo foi realizado em solução aquosa por potenciometria, espectroscopia de ultravioleta-visível, Raman, RMN e RPE e cálculos de menor energia de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
-
10. Atividade Leishmanicida do composto N-dodecil-1,2-etanodiamina
Leishmaniose é uma doença infecciosa que afeta mais de 12 milhões de pessoas em todo mundo. Com mais de 2 milhões de novos casos por ano e falhas no tratamento há o surgimento de resistência às drogas. Como prioridades são realizadas pesquisas relacionadas ao ciclo de vida do parasito, interação com o hospedeiro, desenvolvimento de vacinas e novas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
-
11. Changes induced by Cu2+ and Cr6+ metal stress in polyamines, auxins, abscisic acid titers and antioxidative enzymes activities of radish seedlings
The present study determined the effects of copper and chromium metals on the endogenous titers of polyamines, auxins, abscisic acid and antioxidative enzyme activities in Raphanus sativus L. cv. Pusa chetki seedlings. Among polyamines, putrescine and spermidine contents were enhanced by Cu2+ metal to 62.44 and 402.8 µg g-1 f.w. respectively over control. S
Brazilian Journal of Plant Physiology. Publicado em: 2010
-
12. Polyamines metabolism during somatic embryogenesis in sugarcane. / Metabolismo de poliaminas durante a embriogênese somática de cana-de-açúcar.
O estudo do metabolismo de poliaminas (PAS), envolvendo parâmetros fisiológicos, bioquímicos e moleculares, pode gerar uma melhor compreensão do processo de maturação, e criar estratégias importantes para a otimização da embriogênese somática (ES) em cana-de-açúcar. O objetivo deste trabalho foi estudar a relação entre os conteúdos endógenos
Publicado em: 2010