Alan Loynachan
Special Faculty
Scholars@UK
Detection of Neorickettsia risticii in antemortem fecal and postmortem fetal samples, with genomic insights from complete genome sequencing of a strain recovered from an aborted equine fetus
Uprety, T., Durazo, J., Paul, L., Metiner, K., Ruby, R., Loynachan, A., Janes, J., Kenndy, L., Cassone, L., Molly, E., Quick, M., Morgan, J., Beyhan, S. & Erol, E., Nov 2025, In: Veterinary Microbiology. 310, 110705.Research output: Contribution to journal › Article › peer-review
Retrospective investigation of 43 necropsy cases of Tyzzer disease in foals and partial genome sequence of Clostridium piliforme by shotgun metagenomics
Uprety, T., Swan, M., Kennedy, L., Bryant, U., Cassone, L., Loynachan, A., Janes, J., Evely, M. M., Calvaruso, F. C., Quick, M., Morgan, J., Abdelrazek, S., Lahmers, K., Carter, C. & Erol, E., May 2025, In: Veterinary Microbiology. 304, 110489.Research output: Contribution to journal › Article › peer-review
Case report: Long-term survival in puppies assessed with echocardiography, electrocardiography and cardiac troponin I after acute death in littermates due to parvoviral myocarditis
Dines, B., Kellihan, H., Allen, C., Loynachan, A., Bochsler, P. & Newbury, S., 2023, In: Frontiers in Veterinary Science. 10, 1229756.Research output: Contribution to journal › Article › peer-review
Effect of pentobarbital as a euthanasia agent on equine in vitro embryo production
Martin-Pelaez, S., Rabow, Z., de la Fuente, A., Draheim, P., Loynachan, A., Fiehn, O., Meyers, S., Lyman, C. & Dini, P., Jul 15 2023, In: Theriogenology. 205, p. 1-8 8 p.Research output: Contribution to journal › Article › peer-review
Validation and evaluation of VapA-specific IgG and IgG subclass enzyme-linked immunosorbent assays (ELISAs) to identify foals with Rhodococcus equi pneumonia
Sanz, M. G., Oliveira, A. F., Loynachan, A., Page, A., Svansson, V., Giguère, S. & Horohov, D. W., Jan 2016, In: Equine Veterinary Journal. 48, 1, p. 103-8 6 p.Research output: Contribution to journal › Article › peer-review
Porcine Reproductive and Respiratory Syndrome Virus and Equine Arteritis Virus (Arteriviridae)
Zhang, J., Loynachan, A. T., Stevenson, G. W. & Zimmerman, J. J., Jan 1 2020, Encyclopedia of Virology: Volume 1-5, Fourth Edition. Vol. 1-5. p. 697-706 10 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
Comparison of the host response to larvicidal and nonlarvicidal treatment of naturally acquired cyathostomin infections in horses
Steuer, A. E., Scoggin, K., Stewart, J. C., Barker, V. D., Adams, A. A., Loynachan, A. T. & Nielsen, M. K., Oct 2022, In: Parasite Immunology. 44, 10, e12941.Research output: Contribution to journal › Article › peer-review
Equine Arteritis Virus Elicits a Mucosal Antibody Response in the Reproductive Tract of Persistently Infected Stallions
Carossino, M., Wagner, B., Loynachan, A. T., Cook, R. F., Canisso, I. F., Chelvarajan, L., Edwards, C. L., Nam, B., Timoney, J. F., Timoney, P. J. & Balasuriya, U. B. R., Oct 1 2017, In: Clinical and Vaccine Immunology. 24, 10, e00215-17.Research output: Contribution to journal › Article › peer-review
The use of streptolysin O (SLO) as an adjunct therapy for Rhodococcus equi pneumonia in foals
Horohov, D. W., Loynachan, A. T., Page, A. E., Hughes, K., Timoney, J. F., Fettinger, M., Hatch, T., Spaulding, J. G. & McMichael, J., Dec 29 2011, In: Veterinary Microbiology. 154, 1-2, p. 156-162Research output: Contribution to journal › Article › peer-review
Streptolysin-O/antibiotics adjunct therapy modulates site-specific expression of extracellular matrix and inflammatory genes in lungs of Rhodococcus equi infected foals
Gurel, V., Lambert, K., Page, A. E., Loynachan, A. T., Huges, K., Timoney, J. F., Fettinger, M., Horohov, D. W. & McMichael, J., Jun 2013, In: Veterinary Research Communications. 37, 2, p. 145-154Research output: Contribution to journal › Article › peer-review
Acute Deterioration and Death with Necrotizing Enteritis Associated with Lawsonia intracellularis in 4 Weanling Horses
Page, A. E., Fallon, L. H., Bryant, U. K., Horohov, D. W., Luna, T. W., Marsh, P. S., Slovis, N. M., Sprayberry, K. A. & Loynachan, A. T., 2012, In: Journal of Veterinary Internal Medicine. 26, 6, p. 1476-1480Research output: Contribution to journal › Article › peer-review
Characterization of the interferon gamma response to Lawsonia intracellularis using an equine proliferative enteropathy challenge (EPE) model
Page, A. E., Loynachan, A. T., Bryant, U., Stills, H. F. ,. J., Adams, A. A., Gebhart, C. J., Pusterla, N. & Horohov, D. W., Sep 15 2011, In: Veterinary Immunology and Immunopathology. 143, 1-2, p. 55-65Research output: Contribution to journal › Article › peer-review
Equine Pulmonary Agenesis and Hypoplasia Associated With Diaphragmatic Herniation
Loynachan, A. T., Feb 2022, In: Journal of Equine Veterinary Science. 109, 103855.Research output: Contribution to journal › Article › peer-review
Paternally expressed retrotransposon Gag-like 1 gene, RTL1, is one of the crucial elements for placental angiogenesis in horses
Dini, P., Carossino, M., Balasuriya, U. B. R., El-Sheikh Ali, H., Loux, S. C., Esteller-Vico, A., Scoggin, K. E., Loynachan, A. T., Kalbfleisch, T., De Spiegelaere, W., Daels, P. & Ball, B. A., Jun 1 2021, In: Biology of Reproduction. 104, 6, p. 1386-1399 14 p.Research output: Contribution to journal › Article › peer-review
Equine cervical remodeling during placentitis and the prepartum period: A transcriptomic approach
El-Sheikh Ali, H., Scoggin, K. E., Ruby, R., Loynachan, A., Boakari, Y., Fernandes, C., Dini, P., Fedorka, C. E., Loux, S. C., Esteller-Vico, A. & Ball, B. A., May 2021, In: Reproduction. 161, 6, p. 603-621 19 p.Research output: Contribution to journal › Article › peer-review
Cardiovascular and hematopoietic systems
Robinson, N. A. & Loynachan, A. T., Mar 29 2019, Diseases of Swine. p. 223-233 11 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
Investigation of innate immune function in adult and geriatric horses
Miller, A. B., Loynachan, A. T., Barker, V. D. & Adams, A. A., May 2021, In: Veterinary Immunology and Immunopathology. 235, 110207.Research output: Contribution to journal › Article › peer-review
Effects of pituitary pars intermedia dysfunction and Prascend (pergolide tablets) treatment on endocrine and immune function in horses
Miller, A. B., Loynachan, A. T., Bush, H. M., Hart, K. A., Barker, V. D., Campana-Emard, A. G., Grubbs, S. T. & Adams, A. A., Jan 2021, In: Domestic Animal Endocrinology. 74, 106531.Research output: Contribution to journal › Article › peer-review
Replicon particle vaccine protects swine against influenza
Bosworth, B., Erdman, M. M., Stine, D. L., Harris, I., Irwin, C., Jens, M., Loynachan, A., Kamrud, K. & Harris, D. L., Dec 2010, In: Comparative Immunology, Microbiology and Infectious Diseases. 33, 6, p. e99-e103Research output: Contribution to journal › Article › peer-review
Rhodococcus equi pneumonia in an adult horse
Waldridge, B. M., Morresey, P. R., Loynachan, A. T., Reimer, J., Riddle, W. T., Williams, N. M. & Bras, R., Feb 2008, In: Equine Veterinary Education. 20, 2, p. 67-71 5 p.Research output: Contribution to journal › Article › peer-review
FY 2025 NAHLN Infrastructure (Farm Bill)
Loynachan, A. (PI) & Payton, M. (CoI)
Animal and Plant Health Inspection Service
6/1/25 → 5/31/26
Project: Research project
FY 2025 NAHLN Infrastructure
Loynachan, A. (PI) & Payton, M. (CoI)
Animal and Plant Health Inspection Service
6/1/25 → 5/31/26
Project: Research project
HPAI Avian - 12639525F0583
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
4/24/24 → 4/23/26
Project: Research project
HPAI in Cattle
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
10/17/24 → 10/16/25
Project: Research project
AMR-AST Testing - 2024
Loynachan, A. (PI) & Carter, C. (Former PI)
Animal and Plant Health Inspection Service
6/14/24 → 6/13/25
Project: Research project
HPAI Testing
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
4/26/24 → 4/25/25
Project: Research project
FY 24 NAHLN Infrastructure Agreement (Farm Bill)
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
6/1/24 → 5/31/25
Project: Research project
Add 2024AMR-AST-Genome Sequencing F0390: AMR WGS Testing off CLIN 0003.10
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
2/26/24 → 2/25/25
Project: Research project
FY 24 NAHLN Infrastructure Agreement
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
6/1/24 → 5/31/25
Project: Research project
UKRF Avian Influenza 24: UKRF Avian Influenza 2024
Loynachan, A. (PI)
4/25/24 → 6/30/24
Project: Research project
AMR-AST-Genome Sequencing 23F0630
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
6/2/23 → 6/1/24
Project: Research project
AMR _AST Bacterial Isolates - 23F0709
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
6/20/23 → 6/19/24
Project: Research project
FY 23 NAHLN Infrastructure Agreement
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
6/1/23 → 5/31/24
Project: Research project
AMR-AST WO12639523F0247
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
1/26/23 → 1/25/24
Project: Research project
WO12639522F0882
Loynachan, A. (PI)
Animal and Plant Health Inspection Service
8/1/22 → 7/31/23
Project: Research project
Education
Iowa State University, BS in Microbiology, 2001.
Iowa State University, DVM, 2003
Iowa State University, PhD in Veterinary Microbiology, 2005
Diplomate, American College of Veterinary Pathologists, 2008
