Purkayastha S - Search Results

1

Mechanisms of strand break formation in DNA due to the direct effect of ionizing radiation: the dependency of free base release on the length of alternating CG oligodeoxynucleotides.

Sharma KK, Razskazovskiy Y, Purkayastha S, Bernhard WA. Sharma KK, et al. Among authors: purkayastha s. J Phys Chem B. 2009 Jun 11;113(23):8183-91. doi: 10.1021/jp900803b. J Phys Chem B. 2009. PMID: 19492855 Free PMC article.

2

The role of hydration in the distribution of free radical trapping in directly ionized DNA.

Purkayastha S, Milligan JR, Bernhard WA. Purkayastha S, et al. Radiat Res. 2006 Jul;166(1 Pt 1):1-8. doi: 10.1667/RR3585.1. Radiat Res. 2006. PMID: 16808596 Free PMC article.

3

Correlation of free radical yields with strand break yields produced in plasmid DNA by the direct effect of ionizing radiation.

Purkayastha S, Milligan JR, Bernhard WA. Purkayastha S, et al. J Phys Chem B. 2005 Sep 8;109(35):16967-73. doi: 10.1021/jp0518409. J Phys Chem B. 2005. PMID: 16853159 Free PMC article.

4

An investigation into the mechanisms of DNA strand breakage by direct ionization of variably hydrated plasmid DNA.

Purkayastha S, Milligan JR, Bernhard WA. Purkayastha S, et al. J Phys Chem B. 2006 Dec 28;110(51):26286-91. doi: 10.1021/jp065489i. J Phys Chem B. 2006. PMID: 17181287 Free PMC article.

5

What is the initial chemical precursor of DNA strand breaks generated by direct-type effects?

Purkayastha S, Bernhard WA. Purkayastha S, et al. J Phys Chem B. 2004 Nov 25;108(47):18377-82. doi: 10.1021/jp048539x. J Phys Chem B. 2004. PMID: 17361311 Free PMC article.

6

Unaltered free base release from d(CGCGCG)2 produced by the direct effect of ionizing radiation at 4 K and room temperature.

Sharma KK, Purkayastha S, Bernhard WA. Sharma KK, et al. Among authors: purkayastha s. Radiat Res. 2007 May;167(5):501-7. doi: 10.1667/RR0847.1. Radiat Res. 2007. PMID: 17474798 Free PMC article.

7

On the chemical yield of base lesions, strand breaks, and clustered damage generated in plasmid DNA by the direct effect of X rays.

Purkayastha S, Milligan JR, Bernhard WA. Purkayastha S, et al. Radiat Res. 2007 Sep;168(3):357-66. doi: 10.1667/RR0964.1. Radiat Res. 2007. PMID: 17705639 Free PMC article.

8

Mechanisms of direct radiation damage in DNA, based on a study of the yields of base damage, deoxyribose damage, and trapped radicals in d(GCACGCGTGC)(2).

Swarts SG, Gilbert DC, Sharma KK, Razskazovskiy Y, Purkayastha S, Naumenko KA, Bernhard WA. Swarts SG, et al. Among authors: purkayastha s. Radiat Res. 2007 Sep;168(3):367-81. doi: 10.1667/RR1058.1. Radiat Res. 2007. PMID: 17705640 Free PMC article.

9

One-electron oxidation of DNA by ionizing radiation: competition between base-to-base hole-transfer and hole-trapping.

Sharma KK, Tyagi R, Purkayastha S, Bernhard WA. Sharma KK, et al. Among authors: purkayastha s. J Phys Chem B. 2010 Jun 10;114(22):7672-80. doi: 10.1021/jp101717u. J Phys Chem B. 2010. PMID: 20469885 Free PMC article.

10

Which DNA damage is likely to be relevant in hormetic responses?

Bernhard WA, Purkayastha S, Milligan JR. Bernhard WA, et al. Among authors: purkayastha s. Dose Response. 2007 Nov 23;6(2):184-95. doi: 10.2203/dose-response.07-009.Bernhard. Dose Response. 2007. PMID: 18648576 Free PMC article.

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