RT Journal Article T1 Histopathological and immunohistochemical findings in lymphoid tissues of the endangered Iberian lynx (Lynx pardinus) A1 Peña Fernández, Laura Luisa A1 García Palencia, María Del Pilar A1 Jiménez Martínez, María De Los Ángeles A1 Benito, Alberto A1 Pérez Alenza, María De Los Dolores A1 Sánchez Maldonado, María Belén AB The Iberian lynx (Lynx pardinus) is the most threatened wild feline in the world. Little is known about the diseases and pathology that affect this animal. The aim of this study was to evaluate the histopathological status of the peripheral lymphoid tissues and thymus of Iberian lynxes necropsied between 1998 and 2003. Seventeen animals including females (n=8) and males (n=9), age range of 10 months to 16 years, with different causes of death were histopathologically and immunohistochemically (anti-CD3, CD79, MAC387, CD68) studied. Feline immunosuppressive virus laboratorial tests were negative. Five individuals presented neoplasia and/or tuberculosis. All animals presented some degree of both B and T cells depletion in peripheral lymphoid tissues and follicular hyalinosis in the center of depleted follicles. A viral origin of the lymphoid depletion is postulated although other causes (inbreeding, stress, toxic) are not ruled out. The loss of the effectiveness of the immune system increases the vulnerability of the critically endangered Iberian lynx to pathogens PB ELSEVIER SCI LTD SN 0147-9571 YR 2006 FD 2006 LK https://hdl.handle.net/20.500.14352/96461 UL https://hdl.handle.net/20.500.14352/96461 LA eng NO Peña, L., Garcia, P., Jiménez, M., Benito, A., Pérez Alenza, M., & Sánchez, B. (2006). Histopathological and immunohistochemical findings in lymphoid tissues of the endangered Iberian lynx (Lynx pardinus). Comparative immunology, microbiology and infectious diseases, 29(2-3), 114–126. NO Ministerio de Medio Ambiente (España) DS Docta Complutense RD 23 jul 2024