Effects of catalase, peroxidase, superoxide dismutase and 10 scavengers of oxygen radicals in carrageenin edema and in adjuvant arthritis of rats

1981 ◽  
Vol 37 (12) ◽  
pp. 1313-1314 ◽  
Author(s):  
R. Hirschelmann ◽  
H. Bekemeier
Keyword(s):  
Superoxide Dismutase ◽  
Adjuvant Arthritis ◽  
Oxygen Radicals ◽  
Catalase Peroxidase ◽  
Carrageenin Edema

scholarly journals Superoxide dismutase entrapped in long-circulating liposomes: formulation design and therapeutic activity in rat adjuvant arthritis

2002 ◽  
Vol 1564 (1) ◽  
pp. 227-236 ◽  
Author(s):  
M Luisa Corvo ◽  
João C.S Jorge ◽  
Ron van't Hof ◽  
M.Eugénia M Cruz ◽  
Daan J.A Crommelin ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Adjuvant Arthritis ◽  
Therapeutic Activity ◽  
Formulation Design ◽  
Rat Adjuvant Arthritis

scholarly journals Activity of some isoenzymatic systems in stored coffee grains

2014 ◽  
Vol 38 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Reni Saath ◽  
Fernando Broetto ◽  
Marco Antônio Martin Biaggioni ◽  
Flávio Meira Borém ◽  
Sttela Dellyzete Veiga Franco da Rosa ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Water Content ◽  
Environmental Conditions ◽  
Defense Mechanisms ◽  
Stress Condition ◽  
Drying Method ◽  
Heated Air ◽  
Stored Grains ◽  
Catalase Peroxidase ◽  
Jute Bags

Considering the worldwide consumption of coffee, it is natural that throughout the history many people have dedicated the research to markers that contribute somehow on gauging its quality. This research aimed to evaluate the biochemical performance of arabica coffee during storage. Coffee in beans (natural) and in parchment (pulped) dried in concrete terrace and in dryer with heated air were packed in jute bags and stored in not controlled environmental conditions. Enzymatic activities of superoxide dismutase, catalase, peroxidase, polyphenoloxidase, esterase and lipoxygenase in coffee grains were evaluated at zero, three, six, nine and twelve months by means of electrophoresis. Independently of the drying method, the activity of isoenzymatic complexes highlighted deteriorative processes in stored grains of coffee. The treatments 60/40º C and 60º C used to reduce the water content imposed a greater stress condition, accelerated metabolism of natural coffee in the storage with decreased activity of defense mechanisms due to latent damage in these grains. Natural coffees are more sensible to high drying temperatures and its quality reduces faster than pulped coffee in the storage.

Enzymosomes with surface-exposed superoxide dismutase: In vivo behaviour and therapeutic activity in a model of adjuvant arthritis

2007 ◽  
Vol 117 (2) ◽  
pp. 186-195 ◽  
Author(s):  
Maria Manuela Gaspar ◽  
Otto C. Boerman ◽  
Peter Laverman ◽  
Maria Luísa Corvo ◽  
Gert Storm ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Adjuvant Arthritis ◽  
Therapeutic Activity

Anti-inflammatory effects of recombinant human manganese superoxide dismutase on adjuvant arthritis in rats

1994 ◽  
Vol 14 (2) ◽  
pp. 77-81 ◽  
Author(s):  
M. Shingu ◽  
S. Takahashi ◽  
M. Ito ◽  
N. Hamamatu ◽  
Y. Suenaga ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Adjuvant Arthritis ◽  
Manganese Superoxide Dismutase ◽  
Manganese Superoxide ◽  
Anti Inflammatory

Free Radicals and Scavenging Enzymes in Chronic Tonsillitis

2003 ◽  
Vol 129 (3) ◽  
pp. 265-268 ◽  
Author(s):  
Irfan Kaygusuz ◽  
Nevin Ilhan ◽  
Turgut Karlidag ◽  
Erol Keles ◽  
Sinasi Yalçin ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Oxygen Radicals ◽  
Venous Blood ◽  
Chronic Tonsillitis ◽  
Free Oxygen Radicals ◽  
Free Oxygen ◽  
Blood Samples ◽  
Tonsil Tissue ◽  
Scavenging Enzymes ◽  
The Relationship

OBJECTIVE: This study aimed to define the relationship between chronic tonsillitis and levels of malondialdehyde and superoxide dismutase in free radical and antioxidant forms. It is suggested that free oxygen radicals may play a role in chronic tonsillitis. MATERIALS AND METHODS: One hundred twenty-four patients were enrolled in the study. Tonsillectomy was performed via the usual dissection-snare method. Venous blood was taken preoperatively and at 2 weeks postoperatively. Blood samples and tonsil specimens were evaluated for malondialdehyde and superoxide dismutase analysis. RESULTS: The levels of malondialdehyde and superoxide dismutase in plasma were compared preoperatively and postoperatively, and there were statistically significant differences between these levels ( P < 0.05). In contrast, the levels of malondialdehyde and superoxide dismutase in tonsil tissue were not correlated with the plasma levels of malondialdehyde and superoxide dismutase in pretonsillectomy and posttonsillectomy terms ( P > 0.05). CONCLUSION: The presence of malondialdehyde and superoxide dismutase in plasma and tonsil tissue reinforces the involvement of oxidative stress in the pathophysiology of chronic tonsillitis.

A H2O2-forming peroxidase rather than a NAD(P)H-dependent O2• - synthase may be the major player in cell death responses controlled by the Pto - Fen complex following fenthion treatment

2003 ◽  
Vol 30 (4) ◽  
pp. 409 ◽  
Author(s):  
Margherita G. De Biasi ◽  
Stefania Astolfi ◽  
Andrea Acampora ◽  
Sabrina Zuchi ◽  
Valentina Fonzo ◽  
...  
Keyword(s):  
Cell Death ◽  
Superoxide Dismutase ◽  
Sampling Period ◽  
The Other ◽  
Near Isogenic Lines ◽  
Gene Encoding ◽  
Sustained Activity ◽  
Foliar Symptoms ◽  
Major Player ◽  
Catalase Peroxidase

Four tomato (Lycopersicon esculentum Mill.) near-isogenic lines were treated by foliar spraying with the insecticide fenthion. Two, Riogrande and Rimone, differed from each other only for the presence in the latter of the Fen gene, conferring propensity to develop foliar symptoms upon exposure to fenthion. The other two, namely RC332 and RC131, were the transgenic versions of Riogrande and Rimone, respectively, harbouring the Gox gene encoding for glucose oxidase of Aspergillus niger. The production of H2O2 as well as the activities of H+-ATPase, NAD(P)H-dependent superoxide synthase, catalase, peroxidase, and Cu,Zn-superoxide dismutase were evaluated in the foliar tissues up to 24 h after exposure to fenthion. The Fen gene conferred sensitivity to fenthion, regardless of the expression of a Gox transgene. A prolonged accumulation of H2O2 was observed in the leaves of Rimone and of RC131, which was instead transient in Riogrande and in RC332. In all the tomato lines, exposure to fenthion induced rapid but transient changes in the activities of most enzymes. The only exception was peroxidase activity in the leaves of Rimone and of RC131, which steadily increased until the end of the sampling period. It is suggested that the sensitivity of Rimone to fenthion might be due to the sustained activity of a H2O2-forming peroxidase.

scholarly journals Effects of putrescine and low temperature on the apoplastic antioxidant enzymes in the leaves of two wheat cultivars

2009 ◽  
Vol 55 (No. 8) ◽  
pp. 320-326 ◽  
Author(s):  
T. Çakmak ◽  
Ö. Atıcı
Keyword(s):  
Superoxide Dismutase ◽  
Antioxidant Enzymes ◽  
Low Temperature ◽  
Winter Wheat ◽  
Spring Wheat ◽  
Enzyme Activities ◽  
Cold Treatment ◽  
Wheat Cultivars ◽  
Catalase Peroxidase ◽  
Wheat Leaves

The effects of putrescine (a polyamine), low temperature and their combinations on the activities of apoplastic antioxidant enzymes were studied in the leaves of two wheat cultivars, winter (Dogu-88) and spring (Gerek-79). Fifteen-day-old wheat seedlings were treated with putrescine solutions (0.1, 1 and 10mM) prior to cold treatment (5/3°C). The activities of apoplastic catalase, peroxidase and superoxide dismutase were determined in the leaves both under normal and cold conditions at 1, 3 and 5 days. The results indicate that cold treatment significantly increased the activities of apoplastic catalase, peroxidase and superoxide dismutase in winter wheat while not generally affecting spring wheat. Under control conditions, the putrescine treatments were more effective in increasing the enzyme activities in winter wheat than in spring wheat. However, under cold conditions, the putrescine treatments surprisingly induced enzyme activities in spring wheat while generally reducing those in winter wheat leaves. The results show that putrescine may act as an agent inducing primary changes in the apoplastic antioxidant system of wheat leaves during reactive oxygen species-mediated damage caused by low temperature stress.

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