respiratory system
• age related decline in number of olfactory receptor neurons at age 24 months
• normal apoptosis rate at age 24 months
• normal level of proliferating precursor basal cells at age 24 months
• normal olfactory bulb size at age 24 months
• normal number of granule and mitral cells in mitral cell layer of olfactory bulb at age 24 months
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taste/olfaction
• age related decline in number of olfactory receptor neurons at age 24 months
• normal apoptosis rate at age 24 months
• normal level of proliferating precursor basal cells at age 24 months
• normal olfactory bulb size at age 24 months
• normal number of granule and mitral cells in mitral cell layer of olfactory bulb at age 24 months
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• increased detection threshold in modified habituation-dishabituation test for some odors at age 18 or 24 months
• normal time to find buried cookie at ages 3 months and 18 months
• normal odor preference behavior at age 18 months
• normal behavior in standard habituation-dishabituation test at age 18 mont
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nervous system
• age related decline in number of olfactory receptor neurons at age 24 months
• normal apoptosis rate at age 24 months
• normal level of proliferating precursor basal cells at age 24 months
• normal olfactory bulb size at age 24 months
• normal number of granule and mitral cells in mitral cell layer of olfactory bulb at age 24 months
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craniofacial
• age related decline in number of olfactory receptor neurons at age 24 months
• normal apoptosis rate at age 24 months
• normal level of proliferating precursor basal cells at age 24 months
• normal olfactory bulb size at age 24 months
• normal number of granule and mitral cells in mitral cell layer of olfactory bulb at age 24 months
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behavior/neurological
N |
• normal behavior
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mortality/aging
N |
• normal survival rate
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muscle
N |
• normal excitation-contraction coupling in skeletal muscle (extensor digitorum longus (EDL) and soleus (SOL) muscles) at age 6-8 months
• normal muscle fiber diameter and number and location of nuclei
• normal age-related grip strength decline between ages 3 months and 18 months
• normal muscle weight and length at age 6-8 months
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growth/size/body
N |
• normal body weight
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• age related decline in number of olfactory receptor neurons at age 24 months
• normal apoptosis rate at age 24 months
• normal level of proliferating precursor basal cells at age 24 months
• normal olfactory bulb size at age 24 months
• normal number of granule and mitral cells in mitral cell layer of olfactory bulb at age 24 months
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