Lora L. Arnold, M.S., MT (ASCP)

Department Affiliations
Assistant Professor

Chemical Carcinogenesis, Toxicology, Risk Assessment, Quality Assurance.
Please see Dr. Cohen's laboratory for details on Professor Arnold's research. 

Education and Training
B.A. (Honors), Hastings College, 1976
M.T., Lincoln School of Medical Technology, 1977
M.S. (Pathology/Microbiology), University of Nebraska Medical Center, 1999

Teaching Activities
Graduate students: supervisory committee
Post doctoral fellows: animal and laboratory techniques
Animal and laboratory technicians

Notable Publications
Yokohira, M., Arnold, L.L., Pennington, K.L., Suzuki, S., Kakiuchi-Kiyota, S., Herbin-Davis, K., Thomas, D.J., and Cohen, S.M. (2010) Severe systemic toxicity and urinary bladder cytotoxicity and regenerative hyperplasia induced by arsenite in arsenic (+3 oxidation state) methyltransferase knockout mice.  A preliminary report. Tox. Appl. Pharm. 246, 1-7

Suzuki, S., Arnold, L.L., Pennington, K.L., Kakiuchi-Kiyota, S., Wei, M., Wanibuchi, H., and Cohen, S.M.  (2010) Effect of pioglitazone, a peroxisome proliferator- activated receptor gamma agonist, on urine and urothelium of the rat. Toxicol. Sci., 113:349-357.

Suzuki, S., Arnold, L.L., Pennington, K.L., Chen,B., Naranmandura, H., Le, X.C., and Cohen, S.M.  (2010) Dietary administration of sodium arsenite to rats: Relations between dose and urinary concentrations of methylated and thio-metabolites and effects on the rat urinary bladder epithelium. Toxicol. Appl. Pharmacol. 244, 99-105.

Suzuki, S., Arnold L.L., Pennington, K., Kakiuchi-Kiyota, S., and Cohen, S.M. (2009) Effects of co-administration of dietary sodium arsenite and a NADPH oxidase inhibitor on the rat bladder epithelium.  Toxicology 261, 241-46.

Kakiuchi-Kiyota, S., Vetro, J., Suzuki, S., Varney, M., Han, H., Nascimento, M., Pennington, K., Arnold, L., Singh, R., Cohen, S. (2009) Effect of the PPARγ agonist troglitazone on endothelial cells in vivo and in vitro: Differences between human and mice, Toxicol. Appl. Pharm. 237, 83-90.

Suzuki, S., Arnold, L.L., Pennington, K.L., Chen, B., Le, X.C. and Cohen, S.M. (2009) Effects of an epidermal growth factor receptor inhibitor on arsenic associated toxicity in the rat bladder epithelium. Toxicol. Letters 187, 124-129.

Suzuki, S., Arnold, L.L., Ohnishi, T., and Cohen, S.M.  (2008) Effects of inorganic arsenic on the rat and mouse urinary bladder.  Toxicol. Sci., 106, 350-363.

Suzuki, S., Arnold, L.L., Muirhead, D., Lu, X., Le, C.X,  Bjork, J.A. , Wallace, K.B., Ohnishi, T., Kakiuchi-Kiyota,S., Pennington, K.L., and Cohen S.M. (2008) Inorganic arsenic intramitochondrial granules in mouse urothelium. Toxicol. Pathol. 36, 999-10058.

Nascimento, M.G., Suzuki, S., Wei, M., Tiwari, A., Arnold, L.L., Lu, X., Le, S.C., Cohen, S.M. (2008) Cytotoxicity of combinations of arsenicals on rat urinary bladder urothelial cells in vitro. Toxicology 249, 69-74.

Cohen, S.M. and Arnold, L.L. (2008) Cell proliferation and carcinogenesis. J. Toxicol. Pathol. 21, 1-7.

For a detailed list of publications, click here.

Lora L. Arnold, M.S., MT (ASCP)
Lora L. Arnold, M.S., MT (ASCP)
Email Address


Mailing Address
985900 Nebraska Medical Center
Omaha, NE 68198-5900

Office Address
DRCII 1029

Laboratory Address
DRCII 1016

Phone Numbers
Office: 402-559-7758
Lab: 402-559-6157

Fax Number