A probabilistic Boolean model on hair follicle cell fate regulation by TGF-β

Emergence, Submergency, And Revival of Hair Multi Bioelement Analysis in Public Health

“…We have the same question in our mind on how reliable are our hair bio element concentration in healthy and people suffering from depression [3]. Recently, however, Diah and Wong [4] have proved that the hair chemical analysis was not to be blamed for the diversity of the bio elements contents in the, what we call the hair replicates. Indeed, every hair sample is a mixed set of hair piles (and their follicles) at the different stage of their development.…”

“…Council of Canada, I studied the problem of zinc availability from milk protein and plant protein based infant formulas [4]. During that study I observed that the amount of zinc in the bones was linearly growing with the amount of zinc in the diet from zero to 12 ppm, and that after that the more addition of zinc to the diet was leveled off.…”

Sex Dimorphism of Calcium and Magnesium Metabolism

“…However, the great hopes for massive using of noninvasively collected hair for bio element analysis in clinical practice and epidemiological studies 3,4 faded when the analysis of the hair replicate samples yielded an excessive dispersion of the supposedly identical hair replicates samples 5 . It was assumed that the observed variability is related to the inaccuracies of chemical analysis of hair samples until Dinh and Wong 6 showed that what was considered to be the replicate of the hair sample was in fact a non-homogenous random mixture of hair piles in their various stages of hair developmental cycle. In short, the treads of the hair sample collected from even the same head are not to be considered the identical replicates.…”

Hair Potassium and Sodium in Cystic Fibrosis

“…For a long time use of hair bio element (bioinorganic elements) analysis in clinical practice was considered controversial, because the analyses of the replicate hair samples in different laboratories were discrepant [3]. Today, we know that there is no identical hair sample replicate, even if they came from the same head, since the collected hair sample is a mixture of hair piles in their distinct follicular growth cycle phase [4].…”