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| FOGLIARINI,CARINE O.; GARLET,QUELEN I.; PARODI,THAYLISE V.; BECKER,ALEXSSANDRO G.; GARCIA,LUCIANO O.; HEINZMANN,BERTA M.; PEREIRA,ANA MARIA S.; BALDISSEROTTO,BERNARDO. |
| ABSTRACT This study investigated the anesthetic potential of the essential oil (EO) of Aloysia polystachya in juveniles of dusky grouper (Epinephelus marginatus). Fish were exposed to different concentrations of EO of A. polystachya to evaluate time of induction and recovery from anesthesia. In the second experiment, fish were divided into four groups: control, ethanol and 50 or 300 µL L−1 EO of A. polystachya, and each group was submitted to induction for 3.5 min and recovery for 5 or 10 min. The blood gases and glucose levels showed alterations as a function of the recovery times, but Na+ and K+ levels did not show any alteration. In conclusion, the EO from leaves of A. polystachya is an effective anesthetic for dusky grouper, because anesthesia was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthetic efficacy; Blood gases; Glucose; Hemoglobin; Plasma ion levels. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200445 |
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| BENOVIT,SIMONE C.; SILVA,LENISE L.; SALBEGO,JOSEÂNIA; LORO,VANIA L.; MALLMANN,CARLOS A.; BALDISSEROTTO,BERNARDO; FLORES,ERICO M.M.; HEINZMANN,BERTA M.. |
| This work aimed to determine the efficacy of the essential oil of A. gratissima as anesthetic for silver catfish, and to perform the bio-guided fractionation of essential oil aiming to isolate compounds responsible for the noted effects. Fish were submitted to anesthesia bath with essential oil, its fractions and isolated compounds to determine time of anesthetic induction and recovery. Eugenol (50 mg L-1) was used as positive control. Essential oil of A. gratissima was effective as an anesthetic at concentrations of 300 to 900 mg L-1. Fish presented involuntary muscle contractions during induction and recovery. The bio-guided fractionation of essential oil furnishedE-(-)-pinocamphone, (-)-caryophyllene oxide, (-)-guaiol and (+)-spathulenol.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthesia (-)-caryophyllene oxide E-(-)-pinocamphone (-)-guaiol; Silver catfish (+)-spathulenol. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401675 |
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| SUTILI,FERNANDO J.; CUNHA,MAURO A.; ZIECH,ROSANGELA E.; KREWER,CARINA C.; ZEPPENFELD,CARLA C.; HELDWEIN,CLARISSA G.; GRESSLER,LETICIA T.; HEINZMANN,BERTA M.; VARGAS,AGUEDA C.; BALDISSEROTTO,BERNARDO. |
| In vitro and in vivo activity of the Lippia alba essential oil (EO) against Aeromonas sp. was evaluated. In the in vitro assay the minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of EO for Aeromonas cells were determined using the microdilution method. Twenty five strains of Aeromonassp. isolated from infected fish obtained from local fish farms were used. MIC and MBC values were 2862 and 5998 µg mL-1 for L. alba EO and 0.5 and 1.2 µg mL-1for gentamicin, respectively. In the in vivo assay silver catfish juveniles (Rhamdia quelen) (7.50 ± 1.85 g and 10.0 ± 1.0 cm) with typical injuries associated to Aeromonas infection were divided into four treatments (in triplicate n=10): untreated fish (negative control), 10 mg L-1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial activity; Essential oils; Fish; Gentamicin. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100095 |
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| COPATTI,CARLOS E.; BOLNER,KEIDI C.S.; LONDERO,ÉRIKA P.; ROSSO,FELIPE L. DE; PAVANATO,MARIA A.; BALDISSEROTTO,BERNARDO. |
| Abstract: The aquatic environment presents daily and/or seasonal variations in dissolved oxygen (DO) levels. Piava faces different DO levels in the water due to its distributional characteristics. The goal of this study was to describe the effects of low DO levels on plasma ion, biochemical and oxidative variables in piava juveniles. Fish were exposed to different DO levels, including 1.0, 2.0, 3.0, 4.0 and 5.0 mg L-1 of DO for 96 h, after which blood and tissue samples (liver, kidney, gill and muscle) were collected. The decrease in DO levels decreased plasma Na+, Cl-, K+ and NH3 levels as well as protein and glycogen levels in the liver, kidney and muscle; increased Na+/K+-ATPase activity in the gills and kidney as well as glucose and ammonia levels in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iono-regulatory; Glucose; Lactate; Na+; K+-ATPase activity; Oxidative stress. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500858 |
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| SOUZA,CARINE F.; LIMA,TÁBATA; BALDISSERA,MATHEUS D.; GEIHS,MÁRCIO A.; MACIEL,FÁBIO E.; NERY,LUIZ E.M.; SANTOS,ROBERTO C.V.; RAFFIN,RENATA P.; HEINZMANN,BERTA M.; CARON,BRAULIO O.; BALDISSEROTTO,BERNARDO. |
| ABSTRACT The aim of this study was to evaluate the efficacy and safety of several anesthetics in the brachyuran crab Neohelice granulata, an emergent experimental model. The essential oils (EOs) of Lippia alba, Aloysia tryphilla, and Melaleuca alternifolia (tea tree oil; TTO), the isolated compounds eugenol, menthol, terpinen-4-ol, and the nanoencapsulated form of TTO, were administered in one or more of the following ways: added to the water (immersion), through an arthrodial membrane (injected), or by oral gavage. Unexpectedly, most EOs did not produce an anesthetic effect after immersion. Only TTO and eugenol induced anesthesia by immersion, with very long induction and recovery times compared to anesthesia of other crustaceans. However, a good... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthesia; Eugenol; Terpinen-4-ol; Nanotechnology; Invertebrate; Tea-tree-oil. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602855 |
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| SILVA,LENISE L.; BALCONI,LUANA S.; GRESSLER,LETÍCIA T.; GARLET,QUELEN I.; SUTILI,FERNANDO J.; VARGAS,AGUEDA P. C.; BALDISSEROTTO,BERNARDO; MOREL,ADEMIR F.; HEINZMANN,BERTA M.. |
| ABSTRACT Linalool is the main compound of many essential oils and occurs in two isomeric forms: S-(+)- and R-(-)-linalool. This study aimed to determine if linalool isomers have different antimicrobial and anesthetic properties in fish. For this purpose, these compounds were previously isolated from Lippia alba (Mill.)N. E. Brown and Ocimum americanum L. essential oils. Antimicrobial effects were evaluated through the microdilution test against Aeromonas hydrophila, an important fish disease etiologic agent. Induction time until sedation, anesthesia and recovery time were determined in silver catfish (Rhamdia quelen) through bath exposure (60, 180, 300 or 500 μL L-1). The results showed different biological properties for the isomers being S-(+)-linalool... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthesia; Aeromonas hydrophila; Chirality; Linalool; Silver catfish.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100203 |
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