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| Registros recuperados: 55 | |
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| Dias,J.V.; Paredes,B.D.; Mesquita,L.F.Q.; Carvalho,A.B.; Kozlowski,E.O.; Lessa,A.S.; Takiya,C.M.; Resende,C.M.C.; Coelho,H.S.M.; Campos-de-Carvalho,A.C.; Rezende,G.F.M.; Goldenberg,R.C.S.. |
| We investigated whether liver injury by dual exposure to ethanol and carbon tetrachloride (EtOH + CCl4) for 15 weeks would persist after hepatotoxic agents were removed (EtOH + CCl4/8wR). After 15 weeks of hepatic injury with ethanol (5.5%, m/v) and carbon tetrachloride (0.05, mL/kg, ip), 5 of 11 female Wistar rats were sacrificed. The other 6 rats were maintained for an additional 8 weeks without hepatotoxic agents. Ultrasonography showed increased liver echogenicity and dilation of portal vein caliber in both groups (EtOH + CCl4: 0.22 ± 0.01 cm, P < 0.001; EtOH + CCl4/8wR: 0.21 ± 0.02 cm, P < 0.01) vs control (0.16 ± 0.02 cm). Histopathology showed regenerative nodules in both experimental groups. Histomorphometry revealed increased fibrosis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rat; Cirrhosis; Collagen; Ultrasound; CCl4; Ethanol. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100008 |
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| Nunes,J.L.B.; Silvany-Neto,A.; Pitta,G.B.B.; Figueiredo,L.F.P.; Oliveira,I.; Quadros,R.; Miranda-Junior,F.. |
| The presence of peripheral arterial occlusive disease increases the morbidity and mortality of patients with coronary artery disease. The objective of the present study was to calculate the prevalence of peripheral arterial occlusive disease in patients referred for coronary angiography. This prevalence study was carried out at the Hemodynamics Unit of Hospital Santa Isabel, Salvador, Brazil, from December 2004 to April 2005. After approval by the Ethics Committee of the hospital, 397 patients with angiographic signs of coronary artery disease were enrolled. Diagnosis of peripheral arterial occlusive disease was made using the ankle-brachial blood pressure index (£0.90). Statistical analyses were performed using the z test and a level of significance of a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peripheral vascular diseases; Coronary atherosclerosis; Prevalence; Epidemiology; Ultrasound; Coronary angiography. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000300005 |
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| Cruz-Cansino,Nelly del Socorro; Reyes-Hernández,Isidro; Delgado-Olivares,Luis; Jaramillo-Bustos,Diana Pamela; Ariza-Ortega,José Alberto; Ramírez-Moreno,Esther. |
| Abstract The aim of this study was to investigate the effectiveness of ultrasound as a conservation method for the inactivation of Escherichia coli inoculated into cactus pear juices (green and purple). Total soluble solids, pH, titratable acidity, and the kinetics of E. coli in cactus pear juices treated by ultrasound (60%, 70%, 80% and 90% amplitude levels for 1, 3 and 5 min) were evaluated over 5 days. Total inactivation was observed in both fruit juices after 5 min of ultrasound treatment at most amplitude levels (with the exception of 60% and 80%). After one and two days of storage, the recovery of bacteria counts was observed in all cactus pear juices. Ultrasound treatment at 90% amplitude for 5 min resulted in non-detectable levels of E. coli in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ultrasound; Growth; Escherichia coli; Cactus pear juice; Storage. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200431 |
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| Denadai,Renan; Leite,Hyago Ramalho; Bicudo,Luana de Cássia; Rodello,Leandro; Oba,Eunice; Bicudo,Sony Dimas. |
| ABSTRACT: The aim of this study was to determine the pattern of follicular development in ewes following ablation of all follicles associated with ovarian superstimulatory treatment. After confirmation of reproductive cyclicity using ultrasonography and progesterone levels, five adult ewes of undetermined breed received a vaginal pessary containing 60mg of medroxyprogesterone, maintained for 10 days, with the application of 100μg cloprostenol on the fourth day. On the tenth day, 300UI equine chorionic gonadotropin (eCG) was applied together with 80mg FSH, and all visible follicles were aspirated by laparoscopic ovum pick-up (LOPU). Following LOPU, ovarian structures were assessed using sonography every 8 hours for a period of 64 hours, and the number and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Follicular dynamics; Superstimulation; Ultrasound; Ewes. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100701 |
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| Reis,Ana Guiomar Matos Santiago; Baccarin,Raquel Yvonne Arantes. |
| Twenty Thoroughbred racehorses were ultrasonographically evaluated to determine the relation between normal values of the cross-sectional area (CSA) of the right and left forelimbs superficial digital flexor tendons (SDFT) in the metacarpal region for trained and untrained Thoroughbreds racehorses. Ultrasonography revealed that CSA at 26cm distal to the accessory carpal bone is larger than other proximal levels, for either left or right forelimbs. In addition, the CSA at 2, 4, 6, 8, 10, 12 and 14cm distal to the accessory carpal bone of the left forelimb are larger (P<0.05) for trained horses when compared with untrained horses. On the other hand, there was no significant difference (P>0.05) between left and right forelimb for CSA of the SDFT, at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equine; Tendon; Ultrasound; Cross-sectional area. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000800018 |
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| Boeira,Caroline Pagnossim; Piovesan,Natiéli; Soquetta,Marcela Bromberger; Flores,Déborah Cristina Barcelos; Lucas,Bruna Nichelle; Barin,Juliano Smanioto; Rosa,Claudia Severo da; Terra,Nelcindo Nascimento. |
| ABSTRACT: The aim of this study was to evaluate the effect of extraction conditions on bioactive compounds, as well as on antioxidant activity, and the antimicrobial activity of the extracts with the highest antioxidant characteristics. The extracts were obtained by conventional method and ultrasound-assisted extraction at various temperatures (20°C, 40°C and 60°C). Total phenolics, total flavonoids, antimicrobial activity and antioxidant activity were quantified by the methods of DPPH, FRAP, and ORAC, respectively. The conventional extraction method and ultrasound method influenced the phenolic content at all the tested temperatures. Flavonoids were not influenced by extraction methods. The antioxidant activity (DPPH) was highest in the ultrasonic method... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ultrasound; Bioactive compounds; Natural antioxidant; Achyrocline satureioides. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600201 |
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| Nora,Flávia Michelon Dalla; Borges,Caroline Dellinghausen. |
| ABSTRACT: Essential oils are substances originated from plants in general. These compounds are well known to have a high biological activity, specially the antioxidant and antimicrobial. Several extraction techniques are employed to obtain these substances. However, the majority of these techniques require a long extraction time. In this sense, innovative and alternative extraction techniques, such as ultrasound, have recently been the target of studies. In view of the small amount of publications using ultrasonic pretreatment, this review aimed to congregate current relevant information on ultrasound-assisted extraction of essential oils. In this sense, theoretical aspects, such as the main factors that influence the performance of this technique as well... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Food; Extraction; Ultrasound; Green chemistry. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900753 |
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| Meireles,Yara Silva; Shinike,Flávia Serra; Matte,Douglas Rodrigo; Morgado,Thaís Oliveira; Kempe,Guilherme Vincoletto; Corrêa,Sandra Helena Ramiro; Souza,Roberto Lopes de; Néspoli,Pedro Brandini. |
| ABSTRACT: Herein it was describe sonographic morphology and sintopy of the bowels of the coelomic cavity in the red-footed tortoise. Coelomic cavity of 19 males and 19 females were scanned through cervical and prefemoral access with a multifrequency sector transducer. Morphology, syntopy and echogenicity of the heart, thyroid, liver, gallbladder, reproductive organs, stomach, small intestine, large intestine, urinary bladder and kidneys were evaluated. The heart showed two atria and one ventricle with a thick, trabecular wall. The thyroid was oval and hyperecoic, visualized in the cardiac portion of the ultrasound. The liver, gallbladder and digestive system were similar to those seen in mammals and turtles. However, the tortoise liver was relatively more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chelonians; Ultrasound; Tortoise; Testudines; Chelonoidis carbonaria. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001811 |
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| Boeira,Caroline Pagnossim; Piovesan,Natiéli; Soquetta,Marcela Bromberger; Flores,Déborah Cristina Barcelos; Lucas,Bruna Nichelle; Rosa,Claudia Severo da; Terra,Nelcindo Nascimento. |
| ABSTRACT: The aim of this work was to determine the best extraction condition of bioactive compounds from lemongrass (Cymbopogon citratus), using the conventional method and ultrasonic assisted extraction, varying the temperature, in order to evaluate the antioxidant activity and the antimicrobial activity of the extract with higher antioxidant power in fresh chicken sausages during the storage period. The extracts were obtained by the conventional method (solvent extraction) and by ultrasound assisted extraction, varying the temperature (20°C, 40°C and 60°C). Phenolic compounds, total flavonoids and antioxidant activity were measured by the DPPH, FRAP, ORAC methods. Conventional extraction and ultrasound methods influenced the phenolic and total flavonoid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cymbopogon citratus; Natural antioxidants; Ultrasound; Chicken sausage. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100751 |
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| Vidal,Alessandra Roseline; Cechin,Carine da Fonseca; Cansian,Rogério Luis; Mello,Renius de Oliveira; Schmidt,Michele Mantelli; Demiate,Ivo Mottin; Kempka,Aniela Pinto; Dornelles,Rosa Cristina Prestes. |
| ABSTRACT: Enzymatic hydrolysis (pepsin) assisted with or without ultrasound in the functional properties of hydrolyzates from different collagens were analyzed. Degree of hydrolysis, antioxidant activity (DPPH) and antimicrobial activity (MIC) were assessed. The treatment that resulted in greater antioxidant activity for the fiber sample was with the use of 4% of enzyme and concomitant ultrasound (40.7%), leading to a degree of hydrolysis of 21.7%. For the powdered fiber sample the hydrolysis treatment with use of 4% of enzyme resulted in lower protein content (6.97mg/mL), higher degree of hydrolysis (19.9%) and greater antioxidant activity (38.6%). The hydrolyzates showed inhibitory capacity against gram-negative bacteria Salmonella choleraesuis and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pepsin; Degree of hydrolysis; Antioxidant activity; Antimicrobial activity; Ultrasound. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300752 |
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| Ribeiro,Bruno Teixeira; Lima,José Maria de; Mello,Carlos Rogério de; Sá,Marcos Aurélio Carolino de; Oliveira,Geraldo César de. |
| The aim of this work was to compare aggregate disruption of undisturbed soil samples by ultrasonic energy to aggregate disruption caused by the energy of simulated raindrops, to provide equations that can describe this relationship, and to evaluate whether aggregate stability, expressed by sonication method, may be used to estimate the effect that raindrops have on undisturbed soil samples. Undisturbed soil samples from A, Bi and C horizons of a Cambisol were submitted to different levels of ultrasonic energy and simulated raindrops. Sieved samples (aggregates) were also submitted to different levels of ultrasonic energy so that both disturbed and undisturbed conditions of samples could be compared. The results showed that the method using ultrasonic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aggregation; Soil structure; Ultrasound. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000300021 |
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| Yıkmış,Seydi; Aksu,Harun; Çöl,Başak Gökçe; Alpaslan,Mehmet. |
| ABSTRACT Quince (Cydonia oblonga) is an important fruit for the juice industry because of its nutritional properties that support health. In this study, the aim was to optimize the bioactive components (total phenolic content, ascorbic acid and total antioxidant capacity) and color values (L *, a * and b *) using thermosonication treatment, which is a mild ultrasound treatment, on quince juice. Sensory evaluation was also performed with optimization parameters. For this purpose, thermosonication treatment was completed at different temperatures (30, 35, 40, 45 and 50 °C), different amplitudes (40%, 45%, 50%, 55% and 60%) and at different times (2, 4, 6, 8 and 10 min). At the end of the thermosonication treatment, the optimization values for quince juice... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Non-thermal; Ultrasound; Pasteurization.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100404 |
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| Pereira,Luciane Dias; Ascheri,Diego Palmiro Ramirez; Bastos,Suely Miranda Cavalcante; Ascheri,José Luis Ramírez; Santos,Suzana da Costa. |
| ABSTRACT Jaboticaba is a fruit with high nutritional potential with beneficial effects for health. The aims of this work were the optimization of the extraction of phenolic compounds (PhC) from freeze-dried jaboticaba peel (FJP) as a function of the stirring time (ST) and solvent volume (SV) and to study the edaphic effect on the physical-chemical composition of FJP from five orchards. In the first stage, a 2-factor, 2-level central composite designs combined with the Response Surface Methodology and desirability function was used. In the second stage, a one-way analysis of variance was used to investigate the edaphic effect on the responses. Total phenols (Tph), tannins (Ta), total monomeric anthocyanins (TMA), color index (CI) and tone responses (Ton)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myrciaria cauliflora; Ultrasound; Response surface methodology; Physical-chemical properties.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000400431 |
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| Registros recuperados: 55 | |
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