Regeneration in isolated tails ofXenopus larvae Tập 18 Số 2 - Trang 83-84 - 1962
Hauser, R., Lehmann, F. E.
Isolierte Schwänze vonXenopus-larven lassen sich in Holtfreterlösung + 0.05%
Sulfothiazol mindestens einen Monat am Leben erhalten. Sie bilden trotz
Abwesenheit des Blutkreislaufes ein kleines, heteropolares Regenerat, in welchem
Chorda und Neuralrohr, nicht aber die Muskulatur, typische
Differenzierungsleistungen zeigen.
A morphometric study of spermatogenesis in the testes of mice of a senescence accelerated strain Tập 50 Số 9 - Trang 808-811 - 1994
Miyamoto, H., Manabe, N., Akiyama, Y., Watanabe, T., Sugimoto, M., Sato, E.
The morphometric parameters of spermatogenic cells in a mouse strain prone to
accelerated senescence (SAM-P), a novel murine model of spontaneously promoted
aging, were compared with those of a SAM resistant strain (SAM-R) after birth
until 40 weeks (mean life span of SAM-P). A mixture of gonocytes and
spermatogonia were present in the testis in 1-week-old mice, and no gonocytes
were observed in 2... hiện toàn bộ
Nuclear envelope changes related to cell activation inHelianthus tuberosus L. Tập 31 Số 11 - Trang 1276-1278 - 1975
Severs, N. J., Jordan, E. G.
The ultrastructure of nuclei from dormant and activatedHelianthus tuberosus
tuber cells has been investigated with particular reference to nuclear pore
frequency and nuclear envelope invaginations, and the results discussed in
relation to observations made on other cell types.
Sex chromosomes of a pygopodid lizard,Lialis burtonis Tập 26 Số 2 - Trang 206-207 - 1970
Gorman, G. C., Gress, F.
Es wird erstmals über den Karyotyp einer Eidechse der Familie Pygopodidae,Lialis
burtonis mit dem GeschlechtschromosomensystemX 1 X 2 Y berichtet. Die diploide
Chromosomenzahl des Männchens ist 33 und diejenige des Weibchens 34.
Morphologisch scheint der Karyotyp eine Ähnlichkeit mit demjenigen der
Geckoniden zu besitzen.
Modification of theophylline-induced lipolysis in human fat cells after trypsination Tập 34 Số 2 - Trang 161-163 - 1978
Giudicelli, Y., Brullé, D., Nordmann, R.
Trypsin-treatment of human fat cells results in the potentiation of the
lipolytic response and the cAMP accumulation induced by theophylline (5·10−4 M)
but not of those induced by theophylline (5·10−3 M). The amount of cAMP formed
after exposure to theophylline (5·10−3 M) plus norepinephrine (5·10−6 M)
remains, however, 2.6fold higher in trypsin-treated human fat cells than in the
control ones.
Protease in ascidian endostyle - 1981
Pestarino, M.
A proteolytic activity at pH 7.6 was determined in the endostyle of the
ascidianStyela plicata. With the use of specific inhibitors, it was demonstrated
that a tryptic-like alkaline protease, TLCK-dependent, is involved.
Altered adrenergic responses of the coronary arterial bed in alloxan-diabetic dogs Tập 38 Số 8 - Trang 934-935 - 1982
Palik, I., Koltai, M. Zs., Wagner, M., Kolonics, I., Pogátsa, G.
The conductivity of the coronary arterial bed increased in healthy and decreased
in alloxan-diabetic dogs in response to intracoronary administration of
norepinephrine or sympathetic stimulation. This suggests a modification of
adrenergic receptors sensitivity in diabetes.