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Porphyrin excretion in normal subjects was studied by solvent extraction procedures and by thin-layer chromatography of their methyl-esters. The mean value of the urinary coproporphyrin fraction was significantly higher in males than in females. Taking age also into account this difference was not significant in subjects under 20 years of age. Within the same sex, age did not have any influence on this coproporphyrin fraction. Neither of these two factors, i.e. sex and age modified the mean values of uroporphyrin fraction. Males and females showed similar amounts of fecal copro and protoporphyrin fractions. The thin-layer chromatographic urinary pattern revealed a minor porcentual value of octo-carboxylic-porphyrin in males, due mainly to a lower amount of porphyrin in the 20-40 year, period, when males also showed a decreased value of heptacarboxylic-porphyrin. Neither sex nor age modified the fecal chromatographic porphyrin pattern. Di-carboxylic porphyrins were always predominant, but theri appraisal was very frequently interfered by the presence in feces of fluorescent substances with a Rf similar to tri-carboxylic-porphyrin but with a pheophytinlike spectra.
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
July 2009,
Clinica chimica acta; international journal of clinical chemistry,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
October 1991,
American journal of kidney diseases : the official journal of the National Kidney Foundation,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
May 1980,
Wiener klinische Wochenschrift,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
November 1968,
Archives of dermatology,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
February 1976,
Rinsho byori. The Japanese journal of clinical pathology,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
January 1994,
British journal of rheumatology,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
August 1978,
Medizinische Klinik,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
May 1978,
Nihon Kyobu Shikkan Gakkai zasshi,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
January 1972,
Padiatrie und Padologie,
M L Peña-Payero, and
R Enriquez de Salamanca, and
A Olmos, and
F Romero, and
M J Montes
April 1976,
Casopis lekaru ceskych,
