Regulation of Superoxide Anion Radical–Superoxide Dismutase System in the Avian Thyroid by TSH with Reference to Thyroid Hormonogenesis

1997 ◽  
Vol 239 (1) ◽  
pp. 212-216 ◽  
Author(s):  
Prem Prakash Singh ◽  
G.Pradeep Kumar ◽  
Malini Laloraya
Keyword(s):  
Superoxide Dismutase ◽  
Superoxide Anion ◽  
Anion Radical ◽  
Superoxide Anion Radical

Changes in the superoxide radical and superoxide dismutase levels in the uterus of Rattus norvegicus during the estrous cycle and a possible role for superoxide radical in uterine oedema and cell proliferation at proestrus

1991 ◽  
Vol 69 (4) ◽  
pp. 313-316 ◽  
Author(s):  
M. Laloraya ◽  
G. P. Kumar ◽  
M. M. Laloraya
Keyword(s):  
Cell Proliferation ◽  
Superoxide Dismutase ◽  
Superoxide Anion ◽  
Anion Radical ◽  
Superoxide Radical ◽  
Inverse Correlation ◽  
Oestrous Cycle ◽  
Superoxide Anion Radical ◽  
Albino Rat ◽  
Cyclic Changes

Superoxide anion radical, a radical whose toxicity is well documented, is present in the uterus of albino rat. The cyclic changes that it undergoes during the reproductive cycle are also illustrated. An inverse correlation is seen between the levels of superoxide radical and the enzyme dismutating it, i.e., superoxide dismutase (EC 1.15.1.1), which is also reported to be present in the uterus of albino rat and is shown to exhibit cyclic changes during its oestrous cycle. The high levels of superoxide radical at pro-oestrus enable us to hypothesize that superoxide may be involved in regulating the oedema and cell proliferation of the uterus during proestrus.Key words: superoxide anion radical, superoxide dismutase, uterus, oestrous cycle, uterine oedema, cell proliferation.

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