PMID- 2961927 OWN - NLM STAT- MEDLINE DCOM- 19880211 LR - 20170214 IS - 0023-6772 (Print) IS - 0023-6772 (Linking) VI - 21 IP - 4 DP - 1987 Oct TI - Quantitative studies of lymphoid organs, blood and lymph in inbred athymic and euthymic LEW rats under germfree and specified-pathogen-free conditions. PG - 342-7 AB - Four groups of inbred male LEW rats were examined: A, germfree athymic; B, specified pathogen free (SPF) athymic; C, germfree euthymic; D, SPF euthymic. All animals were killed at 18 weeks and compared with respect to body weight, histological appearance and cell density of the lymphoid organs, haematological values and differential counts of bone marrow, peripheral blood and lymph. Athymic rats had a lower body weight, less densely populated lymphoid organs, and fewer lymphocytes in the blood and lymph compared with euthymic animals. No difference was seen between athymic rats under germfree and SPF conditions, and in general the differences between athymic and euthymic animals were less pronounced under germfree conditions. FAU - Klausen, B AU - Klausen B AD - Department of Oral Diagnosis, Royal Dental College, Copenhagen, Denmark. FAU - Hougen, H P AU - Hougen HP LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Lab Anim JT - Laboratory animals JID - 0112725 SB - IM MH - Animals MH - Body Weight MH - *Bone Marrow Cells MH - *Germ-Free Life MH - Leukocyte Count MH - Lymph/*cytology MH - Lymph Nodes/anatomy & histology/cytology MH - Lymphocytes MH - Lymphoid Tissue/*anatomy & histology/cytology MH - Male MH - Organ Size MH - Rats MH - Rats, Inbred Lew/*anatomy & histology/blood MH - Rats, Inbred Strains/*anatomy & histology MH - Rats, Mutant Strains/*anatomy & histology MH - Rats, Nude/*anatomy & histology/blood MH - Specific Pathogen-Free Organisms MH - Spleen/anatomy & histology/cytology MH - Thymus Gland/anatomy & histology/cytology EDAT- 1987/10/01 00:00 MHDA- 1987/10/01 00:01 CRDT- 1987/10/01 00:00 PHST- 1987/10/01 00:00 [pubmed] PHST- 1987/10/01 00:01 [medline] PHST- 1987/10/01 00:00 [entrez] AID - 10.1258/002367787781363318 [doi] PST - ppublish SO - Lab Anim. 1987 Oct;21(4):342-7. doi: 10.1258/002367787781363318.