• 2006 Workshop
  The Bystander Effect in Normal Human 3-D Tissue: Experiments, Models, and Implications
  Brenner, D., Ponnaiya, B., Shuryak, I., Sachs, R., and Geard, D.

  
  
• 2005 Workshop:
  The Radiation-Induced Bystander Response: Different Protocols, Similar Effects.
  Geard, C.R., Baskar, B.R., Jenkins-Baker, G., Bigelow, A., Marino, S., and Ponnaiya, B.
  
  
• 2003 Workshop:
  Detection of Genomic Instability in a-Irradiated and Bystander Human Fibroblasts.
  Ponnaiya, B., Jenkins-Baker, G., Bigelow, A., Marino, S., and Geard, C.R.
  
  
• 2002 Workshop:
  Investigation of a Radiation-Induced Bystander Effect Using Co-Culturing Protocols. Ponnaiya, B., Jenkins-Baker, G., Zhang, M., Bigelow, A., Marino, S., and Geard, C.R.
  
  
• 2001 Workshop:
  Probing the Origins of Radiation-Induced Biological Damage in Normal Human Cells with a Charged-Particle Microbeam.
  Geard, C.R., Jenkins-Baker, G., Ponnaiya, B., Zhang, M., Bigelow, A., and Randers-Pehrson, G.
  
  Computer Simulations of Chromosome Aberration Data for Human Cells Subjected to Low-LET Radiation: Mechanistic Implications.
  Sachs, R., Cornforth, M., Vazquez, M., Arsuaga, J., Hlatky, L., Geard, C.R., and Brenner, D.
  
  Are Bystander Effects Important at Low Radiation Doses?
  Brenner, D.J., Geard, C.R., Hall, E.J., and Sachs, R.K.
  
  
• 1999 Workshop:
  The Risk of Cancer Induction Due to Routine Mammographic Screening
  Brenner, D.J., Marino, S., and Geard, C.R., Center for Radiological Research, Columbia University.
  
  Site Specific Microbeam Irradiation: Defining a Bystander Effect
  Geard, C.R., Ballajee, A.S., Hei, T.K., Ponnaiya, B. and Marino S. Center for Radiological Research.
  
  Cytogenetic Tests of Radiobiological Models Relating Epidemiologically Measurable Risks to Low-Dose Risks
  Sachs, R.K., Brenner, D.J., Geard, C.R., and Hlatky, L., Department of Mathematics, Evans Hall.

Baskar, R., Balajee, A.S., Geard, C.R., and Hande, M.P. (2008) Isoform-specific activation of protein kinase C in irradiated human fibroblasts and their bystander cells. International J. of Biochemistry & Cell Biology 40(1):125-134.

Baskar, R., Balajee, A.S., and Geard, C.R. (2007) Effects of low and high LET radiations on bystander human lung fibroblast cell survival. International J. of Radiation Biology 83(8):551-559.

Ponnaiya, B., Jenkins-baker, G., Randers-Pherson, G., and Geard, C.R. (2007) Quantifying a bystander response following microbeam irradiation using single-cell RT-PCR analyses. Experimental Hematology 35(4):64-68.

Braby, L., Brenner, D., Cherubini, R., Cremer, T., Durante, M., Geard, C.R., Kobayashi, K., Miller, J., Prise, K., and Taucher-Scholz, G. (2006) Session 1. Microbeam probes of cellular radiation response. In: Extended Abstracts: Proceedings of the 7th International Workshop: Microbeam Probes of Cellular Radiation Response.Radiation Research 166:652-653.

Ponnaiya, B., Jenkins-Baker, G., Randers-Pherson, G., and Geard, C.R. (2006) Session 7. Comparisons of bystander responses observed in two-dimensional and three-dimensional systems after microbeam irradiation. Proceedings of the 7th International Workshop: Microbeam Probes of Cellular Radiation Response.Radiation Research 166:685-686.

Belyakov, O.V., Mitchell, S.A., Parikh, D., Randers-Pehrson, G., Marino, S.A., Amundson, S.A., Geard, C.R., and Brenner, D.J. (2005) Biological effects in unirradiated human tissue induced by radiation damage up to 1 mn away. PNAS 102(40):14203-14208.

Zhou, H., Ivanov, V.N., Gillespie, J., Geard, C.R., Amundson, S.A., Brenner, D.J., Yu, Z., Lieberman, H.B., and Hei, T.K. (2005) Mechanism of radiation-induced bystander effect: Role of the cyclooxygenase-2 signaling pathway. PNAS 102(41):14641-14646.

Zhu, A., Zhou, H., Leloup, C., Marino, S.A., Geard, C.R., Hei, T.K., and Lieberman, H.B. (2005) Differential impact of mouse Rad9 deletion on ionizing radiation-induced bystander effects. Radiation Research 164:655-661

Balajee, A.S., Ponnaiya, B., Baskar, R., and Geard, C.R. (2004) Induction of replication protein A in bystander cells. Radiation Research 162:677-686.

Ponnaiya, B., Jenkins-Baker, G., Brenner, D.J., Hall, E.J., Randers-Pehrson, G., and Geard, C.R. (2004) Biological responses in known bystander cells relative to known microbeam-irradiated cells. Radiation Research 162:426-432.

Suzuki, M., Zhou, H., Geard, C.R., and Hei, T.K. (2004) Effect of medium on chromatin damage in bystander mammalian cells. Radiation Research 162:264-269.

Mitchell, C.R., Azizova, T.V., Hande, M.P., Burak, L.E., Tsakok, J.M., Khokhryakov, V.F., Geard, C.R., and Brenner, D.J. (2004) Stable intrachromosomal biomarkers of past exposure to densely ionizing radiation in several chromosomes of exposed individuals. Radiation Research 162:257-263.

Zhou, H., Randers-Pehrson, G., Geard, C.R., Brenner, D.J., Hall, E.J., and Hei, T.K. (2003) Interaction between radiation-induced adaptive response and bystander mutagenesis in mammalian cells. Radiation Research 160(5):512-516.

Hande, M.P., Azizova, T.V., Geard, C.R., Burak, L.E., Mitchell, C.R., Khokhryakov, V.F., Vasilenko, E.K., and Brenner, D.J. (2003) Past exposure to densely-ionizing radiation leaves a unique permanent signature in the genome. American J. of Human Genetics 72:1162-1170.

Zhou, H., Randers-Pehrson, G., Geard, C.R., Brenner, D.J., Hall, E.J., and Hei, T.K. (2003) Interaction between radiation-induced adaptive response and bystander mutagenesis in mammalian cells. Radiation Research 160:512-516.

Geard, C.R., Jenkins-Baker, G., Marino, S.A., and Ponnaiya, B. (2002) Novel approaches with track segment alpha particles and cell co-cultures in studies of bystander effects. Radiation Protection Dosimetry 99(1-4):233-236.

Sawant, S.G., Randers-Pehrson, G., Geard, C.R., Brenner, D.J., and Hall, E.J. (2001) The bystander effect in radiation oncogenesis: I. Oncogenic transformation can be initiated in C3H10T1/2 cells in vitro in the unirradiated neighbors of irradiated cells. Radiation Research 155:397-401.