Ultrastructural Analysis
Mostrando 13-24 de 375 artigos, teses e dissertações.
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13. Ultrastructural analysis and residual DNA evaluation of rabbit vein scaffold
Abstract Purpose: To investigate the ultrastructural characteristics and analysis of residual DNA in scaffold models, produced with decellularized vena cava in an experimental model with rabbits. Methods: Three groups were created for ultrastructural and residual DNA analysis: group 1 - control, consisting of samples of vena cava in natura; group 2 - SD,
Acta Cir. Bras.. Publicado em: 2017-09
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14. Synthesis and biological evaluation of novel imidazolidine derivatives as candidates to schistosomicidal agents
ABSTRACT Introduction: Schistosomiasis is an infectious parasitic disease caused by trematodes of the genus Schistosoma, which threatens at least 258 million people worldwide and its control is dependent on a single drug, praziquantel. The aim of this study was to evaluate the anti-Schistosoma mansoni activity in vitro of novel imidazolidine derivatives.
Rev. Inst. Med. trop. S. Paulo. Publicado em: 03/04/2017
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15. Ultrastructural study of morphological changes in Schistosoma mansoni after in vitro exposure to the monoterpene rotundifolone
ABSTRACT INTRODUCTION: Schistosomiasis, a parasitic disease caused by trematode flatworms of the genus Schistosoma, affects more than 200 million people worldwide, and its control is dependent on a single drug, praziquantel. Here, we report the in vitro effect of rotundifolone, a monoterpene isolated from Mentha x villosa (Lamiaceae), on Schistosoma manson
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-02
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16. Physiological and ultrastructural analysis reveal the absence of a defined abscission zone in coffee fruits
ABSTRACT In order to investigate the existence of a possible abscission zone in the binding region between the peduncle and the coffee fruit, as well as the biochemical events involved in fruit ripening, we studied peduncles and fruits of Coffea arabica L. cv. “Icatu amarelo”. Coffee fruits were harvested at different maturation stages by using specific
Bragantia. Publicado em: 06/10/2016
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17. Ultrastructural detection of lipids in the cephalic salivary glands of Apis mellifera and Scaptotrigona postica (Hymenoptera: Apidae) workers
ABSTRACT Secretory cells of the cephalic salivary glands (CSGs) of eusocial bees produce and accumulate lipid-like secretion in the lumens of their alveoli. Correspondingly, secretory cells present typical ultrastructural features of lipid-compound producers. Previous work on bees has revealed inter-specific differences in the chemical composition of secreti
Zoologia (Curitiba). Publicado em: 20/06/2016
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18. Histology, histochemistry and fine structure of the Harderian gland, lacrimal gland and superficial gland of the third eyelid of the European bison, Bison bonasus bonasus (Artiodactyla: Bovidae)
ABSTRACT The macroscopic anatomy and the microscopic and ultrastructural features of the Harderian gland (HG), lacrimal gland (LG) and superficial gland of the third eyelid (SGTE) of the adult European bison are described. In addition, morphometric studies were conducted and were followed by statistical analysis of the results. Tissue sections were stained w
Zoologia (Curitiba). Publicado em: 2015-10
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19. Acinar autolysis and mucous extravasation in human sublingual glands: a microscopic postmortem study
Although some morphological investigations on aged human sublingual glands (HSG) found eventual phenomena identified as autolysis and mucous extravasation, the exact meaning of these findings has not been elucidated. Objective The aim of this work is to investigate whether acinar autolysis and mucous extravasation are related to the aging process in human
J. Appl. Oral Sci.. Publicado em: 2015-10
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20. Induction and Morpho-Ultrastructural Analysis of Organogenic Calli of a Wild Passionfruit
This work studied a new protocol for organogenic calli induction and characterization of the morphology and ultrastructure of callogenesis in leaf explants of Passiflora gibertii N. E. Brown, a native passion fruit species from Brazil. Calli induction was performed in different growth conditions (light and dark), different MS medium salt concentrations (MS a
Braz. arch. biol. technol.. Publicado em: 2014-12
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21. Candida albicans morphologies revealed by scanning electron microscopy analysis
Scanning electron microscope (SEM) observations were used to analyze particular morphologies of Candida albicans clinical isolate (strain 82) and mutants defective in hyphae-promoting genes EFG1 (strain HLC52) and/ or CPH1 (strains HLC54 and Can16). Transcription factors Efg1 and Cph1 play role in regulating filamentation and adhesion of C. albicans' morphol
Braz. J. Microbiol.. Publicado em: 10/12/2013
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22. Peripheral blood fibrocytes: new information to explain the dynamics of Leishmania infection
Fibrocytes are important for understanding the progression of many diseases because they are present in areas where pathogenic lesions are generated. However, the morphology of fibrocytes and their interactions with parasites are poorly understood. In this study, we examined the morphology of peripheral blood fibrocytes and their interactions with Leishmania
Mem. Inst. Oswaldo Cruz. Publicado em: 28/11/2013
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23. Long term evaluation of morphometric and ultrastructural changes of testes of alloxan-induced diabetic rats
PURPOSE: To evaluate in a long term the morphometric and ultrastructural changes in seminiferous tubules (ST) of normal and diabetic rats, and to correlate any changes with animal age and diabetes duration. METHODS: Sixty male Wistar rats, three months-old, were randomly divided into two groups: 30 non-diabetic controls (N) and 30 alloxan untreated diabetic
Acta Cir. Bras.. Publicado em: 2013-04
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24. Spermatogenesis of Zaprionus indianus and Zaprionus sepsoides (Diptera, Drosophilidae): cytochemical, structural and ultrastructural characterization
Zaprionus indianus is a drosophilid native to the Afrotropical region that has colonized South America and exhibits a wide geographical distribution. In contrast, Z. sepsoides is restricted to certain African regions. The two species differ in the size of their testes, which are larger in Z. indianus than in Z. sepsoides. To better understand the biology and
Genet. Mol. Biol.. Publicado em: 2013