No obvious deficiency of oligodendrocytes is noted but myelin deposition in existing sheaths seems to be retarded [ 7].
Although a deficiency of catalase activity is noted in many tissues of the body, including the red blood cells, bone marrow, liver, and skin, only about half of the affected persons have symptoms, which consist of recurrent infections of the gums and associated oral structures that may lead to gangrenous lesions.
Of note, genetic heterozygous deficiency of PTEN with reduced PTEN expression or inhibition of PTP1B by specific inhibitor also attenuated the IGF-1 resistance in vivo in a Sod2-deficient murine ageing model (Fig 8C and D).
Low liver manganese levels suggestive of a manganese deficiency were noted in 63percentt of the cattle examined in western Costa Rica (Lang et al., 1976).
In both patients, deficiency of the inner dynein arms was noted on ciliary ultrastructural analysis, associated with a clinical syndrome of bronchiectasis, chronic sinusitis, and middle ear disease.
If not, this should be noted as a deficiency of the study.
As noted previously, a deficiency of the ALDH2 enzyme in people carrying the ALDH2 Lys487 allele contributes to an elevated risk of cancer from alcohol consumption.
We note that partial deficiency of epsin function has a major impact on intercellular signaling mediated by Notch (Overstreet et al., 2003; Chen et al., 2009).
We are hesitant to agree that this should be noted as a deficiency of the study since very few studies show interaction of a secreted peptide ligand for a receptor tyrosine kinase through immunoprecipitation with its ligand at the level of endogenous proteins.
Of note, p53 deficiency did not abolish Trf1 deficiency-mediated senescence.
In addition a marked deficiency of NK cells in the spleen was noted.
