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| Dousseau,Sara; Rodrigues,Amanda Cristiane; Lira,Jean Marcel Sousa; Ribeiro Júnior,Pedro Martins; Pacheco,Fernanda Ventorim; Alvarenga,Amauri Alves de; Resende,Mario Lúcio Vilela; Paula,Ana Cardoso Clemente Filha Ferreira de. |
| A aplicação de eliciadores em plantas é utilizada em estudos de fisiologia para compreensão dos mecanismos de defesa ao ataque de herbívoros ou infecção por patógenos. Em virtude disso, foi avaliado o efeito do eliciador exógeno quitosana no sistema antioxidante enzimático de jaborandi (Piper mollicomum Kunth). Foram avaliadas as atividades das enzimas ascorbato peroxidase (APX), catalase (CAT) e superóxido dismutase (SOD) e as concentrações de peróxido de hidrogênio (H2O2) e malonaldeído (MDA), ambas análises para verificar a peroxidação lipídica. O delineamento experimental utilizado foi o de blocos casualizados (DBC), constituído de um fatorial (5x2) composto pelos controles sem quitosana (plantas sem pulverização e plantas pulverizadas apenas com o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eliciador quitosana; SOD; CAT; APX; Piper mollicomum. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000100191 |
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| NK,Asha Tukappa; Londonkar,Ramesh L; Nayaka,Hanumantappa B; CB,Sanjeev Kumar. |
| BACKGROUND: To evaluate the hepatoprotective potential and invitro cytotoxicity studies of whole plant methanol extract of Rumex vesicarius L. Methanol extract at a dose of 100 mg/kg bw and 200 mg/kg bw were assessed for its hepatoprotective potential against CCl4-induced hepatotoxicity by monitoring activity levels of SGOT (Serum glutamic oxaloacetic transaminase), SGPT (Serum glutamic pyruvic transaminase), ALP (Alkaline phosphatase), TP (Total protein), TB (Total bilirubin) and SOD (Superoxide dismutase), CAT (Catalase), MDA (Malondialdehyde). The cytotoxicity of the same extract on HepG2 cell lines were also assessed using MTT assay method at the concentration of 62.5, 125, 250, 500 μg/ml. RESULTS: Pretreatment of animals with whole plant... |
| Tipo: Journal article |
Palavras-chave: Rumex vesicarius L; HepG2; MDA; SOD; CAT; CCl4 induced hepatotocixity. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100019 |
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| CHAMY,VERÓNICA M; LEPE,JAIME; CATALÁN,ÁLVARO; RETAMAL,DAVID; ESCOBAR,JORGE A; MADRID,EVA M. |
| Pre-eclampsia is a hypertensive disorder of pregnancy in which enzymatic antioxidant defenses fail and tissues are injured. This prospective case-control study evaluated whether pre-eclamptic women and their newborns show higher degrees of oxidative stress than normal pregnancies and sought to determine if this stress is related to clinical severity. Forty-four pre-eclamptic and thirty healthy pregnant women attending two hospitals in Valparaíso, Chile, were studied. The following plasmatic variables of antioxidant capacity were evaluated: glutathione peroxidase activity (GPx), total antioxidant capacity measured by oxidation of ABTS substrate (2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid), and superoxide dismutase activity (SOD). malondialdehide... |
| Tipo: Journal article |
Palavras-chave: Pre-eclampsia; MDA; SOD; GPx; ABTS; Lipoperoxidation; Antioxidants. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200005 |
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| 何, 寧; 太野, 友和; 小嶋, 道之; He, Ning; Futono, Tomokazu; Kojima, Michiyuki. |
| 出芽期の低温に強いアカネダイナゴンと出芽期の低温に弱い斑小粒系－１の実生を１５℃で低温処理 した時に，両品種の抗酸化酵素活性に違いがあるのかどうかを調べた。アカネダイナゴンの緑化実生を 低温処理すると，APX 活性やCAT 活性は上昇したが，斑小粒系－１のCAT 活性は顕著に低下した。しか し，黄化実生に4000Lx の光照射下で低温処理すると，斑小粒系－１のCAT 活性は上昇したが，アカネダ イナゴンのそれはほとんど変化しなかった。斑小粒系－１の緑化実生は，光のある状態で低温を受ける と代謝が乱れ，CAT 活性が低下して細胞内の過酸化水素が過剰となり，細胞障害を起こすのかもしれない｡ Seedlings of 2 varieties of Adzuki beans – the Buchisyouryukei-1 variety, which is weak under low temperatures in the budding stage, and the Akanedainagon variety, which is resistant to low temperatures in the budding stage – were investigated to clarify whether differences in the antioxidative enzyme activity are associated with exposure to low temperatures (15ºC). APX and CAT activity rose when greenish Akanedainagon seedlings were exposed to low temperatures,... |
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Palavras-chave: アズキ; 実生; 低温処理; SOD; APX; CAT; Adzuki; Seedling; Low-temperature; Superoxide disumutase; Ascorbate peroxidase; Catalase . |
| Ano: 2005 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/83 |
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