Comparison of plasma citrulline levels, hemogram parameters and some clinical findings in Feline Panleukopenia (FPV) and healthy cats
Year 2025,
Volume: 10 Issue: 3, 205 - 211, 31.12.2025
Halime Kara
,
Yasin Parlatır
Abstract
Citrulline is an amino acid associated with enterocyte mass in humans and animals. It is important for diagnosis in cases of severe enterocyte loss. While many studies have been conducted in humans, research in veterinary medicine is limited. This study is the first to evaluate plasma citrulline concentrations in cats. The aim was to evaluate the diagnostic potential of plasma citrulline concentration in cats with feline panleukopaenia (FPV). Ten healthy (control) cats and twenty infected cats (FPV) were used in the study. The plasma citrulline levels of all the animals were measured. The tandem mass spectrometry liquid chromatography (LC-MS-MS) method was used to determine these levels. Immunosuppression and thrombocytopenia were detected in cats infected with FPV (p < 0.05). The mean plasma citrulline concentration in the panleukopenia group was 11.10 μmol/L, compared to 12.48 μmol/L in the control group. The citrulline levels of the panleukopenia and control groups were found to be similar. The citrulline results showed no statistical significance between the groups. In conclusion, plasma citrulline levels were not found to be of diagnostic significance.
Ethical Statement
The study was ethically approved by the Animal Experiments Local Ethics Committee of Kırıkkale University (Decision Number: 2025/01/08).
Thanks
We thank Prof. Dr. Salim NESELIOGLU for the analysis of citrulline. There was no financial support in this study.
References
-
Breuillard, C., Cynober, L. & Moinard, C. (2015). Citrulline and nitrogen homeostasis: an overview. Amino Acids, 47(4), 685–691. https://doi.org/10.1007/s00726-015-1932-2
-
Chang, R. W., Javid, P. J., Oh, J. T., Andreoli, S., Kim, H. B., Fauzo, D., & Jaksic, T. (2006). Serial transverse enteroplasty enhances intestinal function in a model of short bowel syndrome. Annals of Surgery, 243(2), 223–228. https://doi.org/10.1097/01.sla.0000197704.76166.07
-
Cohn, L. A., & Langdon, P. (2008). Viral infections. In R. V. Morgan (Eds.), Handbook of small animal practice, (5th ed.). (pp.576-589). USA: Saunders.
-
Crenn, P., Coudray-Lucas, C., Thuillier, F., Cynober, L., & Messing, B. (2000). Postabsorptive plasma citrulline concentration is a marker of absorptive enterocyte mass and intestinal failure in humans. Gastroenterology, 119(6), 1496-1505. https://doi.org/10.1053/gast.2000.20227
-
Crenn, P., Messing, B., & Cynober L. (2008). Citrulline as a biomarker of intestinal failure due to enterocyte mass reduction. Clinical Nutrition, 27(3), 328-339. https://doi.org/10.1016/j.clnu.2008.02.005
-
Crenn, P., Neveux, N., Chevret, S., Jaffray, P., Cynober, L., Melchior, J. C., & Annane, D. (2014). Plasma L-citrulline concentrations and its relationship with inflammation at the onset of septic shock: a pilot study. Journal of Critical Care, 29(2), 315e1-315e6. https://doi.org/10.1016/j.jcrc.2013.11.015
-
Crenn, P., Vahedi, K., Lavergne-Slove, A., Cynober, L., Matuchansky, C., & Messing, B. (2003). Plasma citrulline: a marker of enterocyte mass in villous atrophy-associated small bowel disease. Gastroenterology, 124(5), 1210-1219. https://doi.org/10.1016/S0016-5085(03)00170-7
-
Curis, E., Crenn, P., & Cynober, L. (2007). Citrulline and the gut. Current Opinion Clinical Nutrition and Metabolic Care, 10(5), 620-626. https://doi.org/10.1097/MCO.0b013e32829fb38d
-
Curis, E., Nicolis, I., Moinard, C., Osowska, S., Zerrouk, N., Benazeth, S., & Cynober, L. (2005). Almost all about citrulline in mammals. Amino Acids, 29(3), 177e205,2005. https://doi.org/10.1007/s00726-005-0235-4
-
Cynober, L., Le Boucher, J., & Vasson, M. P. (1995). Arginine metabolism in mammals. The Jounal of Nutritional Biochemistry, 6(8), 402-413. https://doi.org/10.1016/0955-2863(95)00066-9
-
Çelik, B. C., & Koçkaya, M. (2024). Comparison of hemogram, amylase and lipase values in cats with feline panleukopenia disease and healthy cats. Journal of Istanbul Veterinary Sciences, 8(3), 294-298. https://doi.org/10.30704/http-www-jivs-net.1561477
-
de Betue, C. T., & Deutz, N. E. (2013). Changes in arginine metabolism during sepsis and critical illness in children. Nestle Nutritional Institues Workshop Series, 77, 17-28.
-
Dossi, O., Rupassara, S. I., Weng, H. Y., Williams, D. A., Garlick, P. J., & Schoeman, J. P. (2011). Effect of parvoviral enteritis on plasma citrulline concentration in dogs. Journal of Veterinary Internal Medicine, 25(2), 215-221. https://doi.org/10.1111/j.1939-1676.2010.0671.x
-
Fearon, W. R. (1939). The carbamido diacetyl reaction: a test for citrulline. Biochemical Journal, 33(6), 902-907. https://doi.org/10.1042/bj0330902
-
Fei-Fei, D., Yong-Feng, Z., Jıan-Lı, W., Xue-Hua, W., Kaı, C., Chuan-Yı, L., & Zhı-Jıng, X. (2017). Molecular characterization of feline panleukopenia virus isolated from mink and its pathogenesis in mink. Veterinary Microbiology, 205, 92-98. https://doi.org/10.1016/j.vetmic.2017.05.017.
-
Foley, J. E., Orgad, U., Hirsh, D. C., Poland, A., & Pedersen, N. C. (1999). Outbreak of fatal salmonellosis in cats following use of a high-titer modified-live panleukopenia virus vaccine. Journal of The American Veterinary Medical Association, 214(1), 67-70.
-
Fragkos, K. C., & Forbes, A. (2018). Citrulline as a marker of intestinal function and absorption in clinical settings: a systematic review and meta-analysis. United European Gastroenterol Journal, 6(2), 181-191. https://doi.org/10.1177/2050640617737632
-
Gülersoy, E., Balıkçı, C., Erol, B. B., Şahan, A., & Günal, İ. (2023). Diagnostic performances of clinical and hematological parameters in cats naturally ınfected with feline panleukopeniavirus: clinical parameters in cats with feline panleukopenia virus. Journal of the Hellenic Veterinary Medical Society, 74(3), 6051-6062. https://doi.org/10.12681/jhvms.30721
-
Gültekin, M., Voyvoda, H., Ural, K., Erdoğan, H., Balıkçı, C., & Gültekin, G. (2018.) Plasma citrulline, arginine, nitric oxide, and blood ammonia levels in neonatal calves with acute diarrhea. Journal of Veterinary Internal Medicine, 33, 987-998. https://doi.org/ 10.1111/jvim.15459.
-
Harvey, J. W. (2017).. The feline blood film: Techniques and erythrocyte morphology. Journal of Feline Medicine and Surgery, 19(5), 529-540. https://doi.org/10.1177/1098612X17706466
-
Kadam, M., Sawale, G., Gandge, R. S., & Ingle, S. A. (2022). Hematobiochemical and electrolyte profile in feline panleukopenia affected cats. International Journal of Livestock Research, 12(2), 17-22. https:/doi.org/ 10.5455/ijlr.20220222015425
-
Kızılkaya, B., & Kara, E. (2023). The effect of granulocyte colony stimulating factor use in addition to classical treatment on prognosis and blood values in patients with feline panleukopenia Kocatepe Veterinary Jourmal, 16(3), 357-364. https://doi.org/ 10.30607/kvj. 1313752
-
Kruse, B. D., Unterer, S., Horlacher, K., Sauter-Louis, C., & Hartmann, K. (2010). Prognostic factors in cats with feline panleukopenia. Journal of Veterinary Internal Medicine, 24,1271-1276. https://doi.org/10.1111/j.1939-1676.2010.0604.x
-
Le, A., Ng, A., Kwan, T., Cusmano-Ozog, K., & Cowan, T. M. (2014). A rapid, sensitive method for quantitative analysis of underivatized amino acids by liquid chromatography–tandem mass spectrometry (LC–MS/MS). Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences 944, 166-174. http://doi.org/10.1016/j.chromb.2013.11.017.
-
Luo, M., Fernández-Estívariz, C., Manatunga, A. K., Bazargan, N., Gu, L. H., Jones, D. P., Klapproth, J. M., Sitaraman, S. V., Leader, L. M., Galloway, J. R., & Ziegler, T. R. (2007). Are plasma citrulline and glutamine biomarkers of intestinal absorptive function in patients with short bowel syndrome? Journal of Parenteral and Enteral Nutrition, 31(1), 1–7. https://doi.org/10.1177/014860710703100101
-
Osowska, S., Moinard, C., Neveux, N., Loi, C., & Cynober, L. (2004). Citrulline increases arginine pools and restores nitrogen balance after massive intestinal resection. Gut, 53, 1781–1786. https://doi.org/10.1136/gut.2004.042317
-
Papadia, C., Osowska, S., Cynober, L., & Forbes, A. (2018). Citrulline in health and disease. Review on human studies. Clinical Nutrition, 37(6), 1823-1828. https://doi.org/10.1016/j.clnu.2017.10.009
-
Parrish, C. R. (2006). Pathogenesis of feline panleukopenia virus and canine parvovirus. In J. Kerr, S. F. Cotmore, M. E. Bloom, R. M. Linden, & C. R. Parrish. (Eds.), Parvoviruses (pp. 429-434) USA: Oxford University Press.
-
Rehme, T., Hartmann, K., Truyen, U., Zablotski, Y., & Bergmann, M. (2022). Feline panleukopenia outbreaks and risk factors in cats in animal shelters. Viruses, 14(6), 1248. https://doi.org/10.3390/v14061248.
-
Rıce, J. K. (2017). Successful treatment of feline panleukopenia: A guideline for rescuers and veterinarians. Part I. Jourmal of Veterianry Science Medical Diagnosis, 6(2), 100223. https://doi.org/ 10.4172/2325-9590.1000223
-
Rimando, A. M., & Perkins-Veazie, P. M. (2005). Determination of citrulline in watermelon. Journal of Chromatography A, 1078, 196-200. https://doi.org/10.1016/j.chroma.2005.05.009
-
Santarpia, L., Catanzano, F., Ruoppolo, M., Alfonsi, L., Vitale, D. F., Pecce, R., Pasanisi, F., Contaldo, F., & Salvatore. (2008). Citrulline blood levels as indicators of residual intestinal absorption in patients with short bowel syndrome. Annals of Nutrition Metabolism 53(2), 137–142. https://doi.org/10.1159/000170888
-
Shelton, G. H., Linenberger, M. L., Grant, C. K., & Abkowitz, J. L. (1990). Hematologic manifestations of feline immunodeficiency virus infection. Blood, 76(6), 1104-1109. https://doi.org/10.1182/blood.V76.6.1104.1104
-
Strombeck, D. R., & Rogers, Q. (1978). Plasma amino acid concentrations in dogs with hepatic disease. Journal of The American Veterinary Medical Association, 173(1), 93–96.
-
Stuetzer, B., & Hartmann, K. (2014). Feline parvovirus infection and associated diseases. The Veterinary Journal, 201(2), 150-155. https://doi.org/10.1016/j.tvjl.2014.05.027
-
Sultana, H., Kitano, A., Wadud, S., Takahashi, T., Morita, T., & Onodera, R. (2003). Synthesis of citrulline from ornithine by the small intestinal mucosa of cattle. Animal Science Journal, 74, 283-287. https://doi.org/10.1046/j.1344-3941.2003.00118.x
-
Truyen, U., Addie, D., Belák, S., Boucraut-Baralon, C., Egberink, H., Frymus, T., Gruffydd-Jones, T., Hartman, K., Hosie, M. J., Lloret, A., Lutz, H., Marsilio, F., Pennisi, M. G., Radford, A. D., Thiry, E., & Horzinek, M. C. (2009). Feline panleukopenia. ABCD guidelines on prevention and management. Journal of Feline Medicine & Surgery, 11(7), 538-546. https://doi.org/10.1016/j.jfms.2009.05.002
-
Truyen, U., & Parrish, C. R. (2000). Epidemiology and pathology of autonomous parvoviruses. In S. Faisst, & J. Rommelaere (Eds). Contributions to microbiology from molecular biology to pathology and therapeutic uses (chp. 149-162). Switzerland: S Karger AG. https://doi.org/10.1159/000060331
-
Uyurca, T., & Haydardedeoğlu, A. E. (2025). Feline panleukopenia effects of treatment with filgrastim on mortality, hematological and biochemical parameters. Acta Scientiae Veterinariae, 53, 1979. https://doi.org/ 10.22456/1679-9216.144222
-
Weiss, D. J., & Wardrop, K. J. (2010). Normal hematology of the cat. In M. B. Brooks, K. E. Harr, D. M. Seelig, K. J. Wardrop, & D. J. Weiss (Ed.), Schalm’s veterinary hematology, (6th ed). (pp. 832-837). USA, Wiley.