| nude mice | Strains of athymic mice bearing the recessive allele nu/nu which are largely hairless and lack all or most of the T-cell population. Show no rejection of either allografts or xenografts. Nu/nu alleles on some backgrounds have near normal numbers of T-cells. (18 Nov 1997) |
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| nude mouse | A hairless mutant mouse with thymic hypoplasia, lacking T-cells. (05 Mar 2000) |
| rats, nude | A mutant strain of rattus norvegicus without a thymus and with depressed or absent T-cell function. This strain of rats may have a small amount of hair at times, but then lose it. (12 Dec 1998) |
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| mice, nude | Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumour studies and studies on immune responses. (12 Dec 1998) |