Fast Fish
Mostrando 25-36 de 45 artigos, teses e dissertações.
-
25. Estudo do efeito do naproxeno na regeneração da nadadeira caudal do peixe teleosteo Cyprinus carpio (carpa)
The fins of teleosts show a very fast capacity for regeneration, what make them one important and appropriate biologic model for study of the drugs that can affect their development. The rays of fins are formed, for the most part, of collagen and glycosaminoglycans and, as showed on literature reports, some antiinflammatory drugs, steroidal and nonsteroidal,
Publicado em: 2003
-
26. Estudo da interação da veratrina com o musculo esqueletico por metodos histoquimicos, ultraestruturais e bioquimicos
Veratrine, a commercial extract from the South and Central America plant Schoenocaulon officinale (Liliaceae), activates voltage-dependent Na + channels to produce persistent depolarization and an increase in sodium ion penneability in muscle fibers or nerves. The aim of this study was to investigate the effects of the veratrine aIkaloid on skeletal muscle o
Publicado em: 2000
-
27. Morphology, performance, fitness: functional insight into a post-Pleistocene radiation of mosquitofish
Bahamas mosquitofish (Gambusia hubbsi) colonized blue holes during the past approximately 15 000 years and exhibit relatively larger caudal regions in blue holes that contain piscivorous fish. It is hypothesized that larger caudal regions enhance fast-start escape performance and thus reflect an adaptation for avoiding predation. Here I test this hypothesis
The Royal Society.
-
28. The pCa-tension and force-velocity characteristics of skinned fibres isolated from fish fast and slow muscles
1. Single fast fibres and small bundles of two to six slow fibres were dissected from the myotomal muscles of the cod, Gadus morhua, and the dogfish, Scyliorhinus canicula. Fibres were chemically skinned with the non-ionic detergent Brij 58.
-
29. Notochord induction of zebrafish slow muscle mediated by Sonic hedgehog
The patterning of vertebrate somitic muscle is regulated by signals from neighboring tissues. We examined the generation of slow and fast muscle in zebrafish embryos and show that Sonic hedgehog (Shh) secreted from the notochord can induce slow muscle from medial cells of the somite. Slow muscle derives from medial adaxial myoblasts that differentiate early,
Cold Spring Harbor Laboratory Press.
-
30. The fastest contracting muscles of nonmammalian vertebrates express only one isoform of the ryanodine receptor.
The skeletal muscles of chickens, frogs, and fish have been reported to express two isoforms (alpha and beta) of the sarcoplasmic reticulum calcium release channel (ryanodine receptor or RYR), while mammals express only one. We have studied patterns of RYR isoform expression in skeletal muscles from a variety of fish, reptiles, and birds with immunological t
-
31. A simple and efficient method for microdissection and microFISH.
A simple and efficient method for the dissection of (marker) chromosomes, (micro)nuclei, and chromosome regions is presented. Before microdissection, metaphases are overlaid with milli-Q water to rehydrate the chromosomes, which makes them soft and sticky. The dissected chromosome fragments are dissolved without proteinase-K or topoisomerase treatment and di
-
32. Effects of phosphate on the contractile properties of fast and slow muscle fibres from an Antarctic fish.
Single fast myotomal fibres and small bundles of slow fibres (from the adductor pectoralis profundus muscle) were isolated from the Antarctic teleost Notothenia neglecta. Fibres were skinned by a brief detergent treatment. The effects of phosphate on the mechanical properties and ATPase activity of fast and slow fibres were studied. 20 mM-phosphate inhibited
-
33. Function of identified motoneurones and co-ordination of primary and secondary motor systems during zebra fish swimming.
1. The activity of the two classes of motoneurones, primary and secondary, which innervate myotomal muscle fibres in the zebra fish, was monitored with electromyographic and intracellular techniques. 2. Simultaneous EMG and intracellular recordings from muscle fibres showed that the activity of the two motor systems and of individual primary motoneurones can
-
34. Dopamine alters glutamate receptor desensitization in retinal horizontal cells of the perch (Perca fluviatilis).
The patch-clamp technique in combination with a fast liquid filament application system was used to study the effect of dopamine on the glutamate receptor desensitization in horizontal cells of the perch (Perca fluviatilis). Kinetics of ligand-gated ion channels in fish horizontal cells are modulated by dopamine. This modulation is presumably mediated by a c
-
35. Fluorescence In Situ Hybridization Assay Using Peptide Nucleic Acid Probes for Differentiation between Tuberculous and Nontuberculous Mycobacterium Species in Smears of Mycobacterium Cultures
TB PNA FISH is a new fluorescence in situ hybridization (FISH) method using peptide nucleic acid (PNA) probes for differentiation between species of the Mycobacterium tuberculosis complex (MTC) and nontuberculous mycobacteria (NTM) in acid-fast bacillus-positive (AFB+) cultures is described. The test is based on fluorescein-labelled PNA probes that target th
American Society for Microbiology.
-
36. An intronic mutation in a lariat branchpoint sequence is a direct cause of an inherited human disorder (fish-eye disease).
The first step in the splicing of an intron from nuclear precursors of mRNA results in the formation of a lariat structure. A distinct intronic nucleotide sequence, known as the branchpoint region, plays a central role in this process. We here describe a point mutation in such a sequence. Three sisters were shown to suffer from fish-eye disease (FED), a diso