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Essiac tea: scavenging of reactive oxygen species and effects on DNA damage.
Leonard SS, Keil D, Mehlman T, Proper S, Shi X, Harris GK. Leonard SS, et al. J Ethnopharmacol. 2006 Jan 16;103(2):288-96. doi: 10.1016/j.jep.2005.09.013. Epub 2005 Oct 13. J Ethnopharmacol. 2006. PMID: 16226859
Freshly fractured quartz inhalation leads to enhanced lung injury and inflammation. Potential role of free radicals.
Vallyathan V, Castranova V, Pack D, Leonard S, Shumaker J, Hubbs AF, Shoemaker DA, Ramsey DM, Pretty JR, McLaurin JL, et al. Vallyathan V, et al. Among authors: leonard s. Am J Respir Crit Care Med. 1995 Sep;152(3):1003-9. doi: 10.1164/ajrccm.152.3.7663775. Am J Respir Crit Care Med. 1995. PMID: 7663775
Hydroxyl radical generation by coal mine dust: possible implication to coal workers' pneumoconiosis (CWP).
Dalal NS, Newman J, Pack D, Leonard S, Vallyathan V. Dalal NS, et al. Among authors: leonard s. Free Radic Biol Med. 1995 Jan;18(1):11-20. doi: 10.1016/0891-5849(94)e0094-y. Free Radic Biol Med. 1995. PMID: 7896164
Efficacy of taurine based compounds as hydroxyl radical scavengers in silica induced peroxidation.
Shi X, Flynn DC, Porter DW, Leonard SS, Vallyathan V, Castranova V. Shi X, et al. Among authors: leonard ss. Ann Clin Lab Sci. 1997 Sep-Oct;27(5):365-74. Ann Clin Lab Sci. 1997. PMID: 9303176
Augmentation of pulmonary reactions to quartz inhalation by trace amounts of iron-containing particles.
Castranova V, Vallyathan V, Ramsey DM, McLaurin JL, Pack D, Leonard S, Barger MW, Ma JY, Dalal NS, Teass A. Castranova V, et al. Among authors: leonard s. Environ Health Perspect. 1997 Sep;105 Suppl 5(Suppl 5):1319-24. doi: 10.1289/ehp.97105s51319. Environ Health Perspect. 1997. PMID: 9400745 Free PMC article.
Antioxidant activity of lazaroid (U-75412E) and its protective effects against crystalline silica-induced cytotoxicity.
Huang SH, Leonard S, Shi X, Goins MR, Vallyathan V. Huang SH, et al. Among authors: leonard s. Free Radic Biol Med. 1998 Mar 1;24(4):529-36. doi: 10.1016/s0891-5849(97)00285-2. Free Radic Biol Med. 1998. PMID: 9559864
Cobalt-mediated generation of reactive oxygen species and its possible mechanism.
Leonard S, Gannett PM, Rojanasakul Y, Schwegler-Berry D, Castranova V, Vallyathan V, Shi X. Leonard S, et al. J Inorg Biochem. 1998 Jul;70(3-4):239-44. doi: 10.1016/s0162-0134(98)10022-3. J Inorg Biochem. 1998. PMID: 9720310
Vanadate-induced activation of activator protein-1: role of reactive oxygen species.
Ding M, Li JJ, Leonard SS, Ye JP, Shi X, Colburn NH, Castranova V, Vallyathan V. Ding M, et al. Among authors: leonard ss. Carcinogenesis. 1999 Apr;20(4):663-8. doi: 10.1093/carcin/20.4.663. Carcinogenesis. 1999. PMID: 10223197
The role of hydroxyl radical as a messenger in the activation of nuclear transcription factor NF-kappaB.
Shi X, Dong Z, Huang C, Ma W, Liu K, Ye J, Chen F, Leonard SS, Ding M, Castranova V, Vallyathan V. Shi X, et al. Among authors: leonard ss. Mol Cell Biochem. 1999 Apr;194(1-2):63-70. doi: 10.1023/a:1006904904514. Mol Cell Biochem. 1999. PMID: 10391125
Cr(IV) causes activation of nuclear transcription factor-kappa B, DNA strand breaks and dG hydroxylation via free radical reactions.
Shi X, Ding M, Ye J, Wang S, Leonard SS, Zang L, Castranova V, Vallyathan V, Chiu A, Dalal N, Liu K. Shi X, et al. Among authors: leonard ss. J Inorg Biochem. 1999 May 30;75(1):37-44. doi: 10.1016/S0162-0134(99)00030-6. J Inorg Biochem. 1999. PMID: 10402675
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