About DN Rao
Dr. Veeramachaneni's research career focused on determining if deteriorating reproductive health in males is really idiopathic, as male infertility often is labeled, or a consequence of exposure to environmental pollutants. Using a variety of laboratory animal models, his laboratory evaluated long-term reproductive sequelae following developmental exposure to ubiquitous pollutants. Compounds studied included anti-androgenic pesticides (DDT and its metabolites; vinclozolin), water disinfection byproducts, and plasticizers (phthalates). Notable findings included the impairment of spermiogenesis long after exposure to common chemical contaminants in drinking water and occurrence of carcinoma in situ lesions in the testis following developmental exposures to DDT. Veeramachaneni's laboratory also provided morphological/andrological services spanning a variety of tissue matrices in clinical research paradigms (from a variety of species including domesticated, wild, and laboratory animals as well as humans) to facilitate identification, and in many instances interpretation, of subtle lesions. This service of evaluation of the gametes at an ultrastructural level to assess potential fertility was valued by equine practitioners both nationally and internationally. Dr. Veeramachaneni also taught both graduate and undergraduate students in the areas of endocrine pharmacology, cancer therapeutics, andrology, and reproductive toxicology including courses such as Animal and Human Reproductive Biology, Essentials of Pathophysiology, Pathophysiology Perspectives, and Pharmacology.
Education
PhD, University of Illinois, Urbana-Champaign, 1985BVSc, A P Agricultural University, India, 1972MS, A P Agricultural University, India, 1975
Publications
Thompson RE, Meyers MA, Palmer J, Veeramachaneni DNR, Magee C, de Mestre AM, Antczak DF, Hollinshead FK. 2023. Production of Mare Chorionic Girdle Organoids That Secrete Equine Chorionic Gonadotropin. Int J Mol Sci 24(11):9538.Blawut B, Wolfe B, Premanandan C, Schuenemann G, Ludsin SA, Liu S-L, Veeramachaneni DNR, Cutinho da Silva MA (2023). Effects of activation and assisted reproduction techniques on the composition, structure, and properties of the sauger (Sander canadensis) spermatozoan plasma membrane. Theriogenology 198:87-99.Thompson RE, Meyers MA, Veeramachaneni DNR, Pukazhenthi BS, Hollinshead FK. 2022. Equine Oviductal Organoid Generation and Cryopreservation. Methods Protoc 15; 5(3):51.Blawut B, Wolfe B, Premanandan C, Schuenemann G, Ludsin SA, Veeramachaneni DNR, Cutinho da Silva MA. 2021. Spatial and Temporal Changes in Testis Morphology and Sperm Ultrastructure of the Sportfish Sauger (Sander canadensis). Acta Zoologica DOI: 10.1111/azo.12399.Loveland KL, Rajpert-De Meyts E, and Veeramachaneni DNR. 2018. Testicular Cancer in Relation to Testicular Dysgenesis Syndrome. In: Comprehensive Toxicology, 3rd Edition (Ed. McQueen, CA), Oxford: Elsevier Ltd. Vol 4, pp 147-164.Veeramachaneni DNR. 2012. Ultrastructural evaluation of semen to assess effects of exposure to toxicants. Toxicol Pathol 40:382-390. Veeramachaneni DNR, Palmer JS, Amann RP. 2001. Long-term effects on male reproduction of early exposure to common chemical contaminants in drinking water. Human Reprod 16:979-987.Veeramachaneni DNR. 2000. Deteriorating trends in male reproduction: Idiopathic or Environmental? Anim Reprod Sci 60-61:121-130. (Plenary lecture, XIV International Congress on Animal Reproduction, Stockholm). Veeramachaneni DNR, Ott RS, Heath EH, McEntee K, Bolt DJ, Hixon JE. 1986. Pathophysiology of small testes in beef bulls: relationship between scrotal circumference, histopathologic features of testes and epididymides, seminal characteristics, and endocrine profiles. Am J Vet Res. 47:1988-1999.
Research Specialty
Andrology and Reproductive ToxicologyMixed Animal (large and small)Wildlife/Zoo