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Different renal structures were studied during the initial phases of compensatory renal hypertrophy. Four days after unilateral nephrectomy, kidney weight had increased by 31%, total glomerular volume by 17%, and glomerular filtration surface by 10%. After 24 days, kidney weight had increased by 44%, glomerular volume by 24%, and filtration area by 22%. The proximal tubules increased their cell volume and diameter significantly after four days (30% and 11%), but tubular length did not increase until later. We conclude that during compensatory renal hypertrophy glomerular growth is less pronounced than tubular growth, and that the increase in filtration surface area is not sufficient to explain the increased glomerular filtration rate after nephrectomy. Proximal tubules initially grow transversally and only later on longitudinally, the two growth phases possibly corresponding to cellular hypertrophy and hyperplasia.
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
April 1987,
Journal of cellular physiology,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
September 1963,
Zeitschrift fur Anatomie und Entwicklungsgeschichte,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
April 1981,
Journal of steroid biochemistry,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
January 1961,
Texas reports on biology and medicine,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
January 1978,
The Yale journal of biology and medicine,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
July 1955,
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
February 1982,
Biochimica et biophysica acta,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
December 1967,
The American journal of physiology,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
October 1963,
International abstracts of surgery,
K Seyer-Hansen, and
H J Gundersen, and
R Osterby
May 1963,
Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova,
