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Digitale Medien

The responses of plasma biochemical parameters to a 56-km race in novice and experienced ultra-marathon runners (1982)

Noakes, T. D. ; Carter, J. W.

Springer

European journal of applied physiology 49 (1982), S. 179-186

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ISSN: 1439-6327

Schlagwort(e): Plasma enzymes ; Creatine kinase ; Aspartate aminotrans-ferase ; Ultra-marathon running

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Summary A number of blood biochemical parameters, including the activities of the plasma enzymes creatine kinase (CK), aspartate amino-transferase (ASAT), lactate dehydrogenase and alkaline phosphatase, were measured in 23 athletes before, and immediately after a 56-km running race. Of the 23 athletes, 18 had previously completed standard 42-km marathon or longer (up to 90-km) ultra-marathon races, whereas not one of the other five athletes had previously run in a long-distance race. After the race, plasma CK and ASAT activities had both risen at least 280% more in the novice runners despite their much slower mean running speed (9.8±0.4 vs. 13.8±0.3 hm/h). There were no other inter-group differences in the absolute levels of the other measured biochemical parameters, although the rise in plasma calcium during the race was significantly greater in the experienced marathon runners. This study shows that either higher levels of training, or previous ultra-marathon racing experience, or both, is associated with lower immediate post-exercise levels of plasma enzyme activity. This is compatible with the finding that physical training reduces post-exercise plasma enzyme levels.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02334066

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Digitale Medien

Hemocytes and granular cell fragments of Tipula paludosa larvae (1987)

Carter, J. B. ; Green, E. I.

New York, NY : Wiley-Blackwell

Journal of Morphology 191 (1987), S. 289-294

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ISSN: 0362-2525

Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Medizin

Notizen: Five morphological categories of hemocyte (prohemocyte, ameboid plasmatocyte, spindle-shaped plasmatocyte, oenocytoid, and granular cell) were observed by light and electron microscopy of hemolymph from Tipula paludosa larvae. In addition, vast numbers of membrane-bounded granule-containing fragments were present, and were also found in the larval hemolymph of four other Tipula spp. The fragments appear to be derived from the granular cells, which readily fragment. Granules in the granular cells and the fragments appear to have similar substructure. Melanization and coagulation of the hemolymph occur rapidly on exposure to air; the granular cell fragments may be concerned with one or both of these processes.

Zusätzliches Material: 16 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jmor.1051910308

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Digitale Medien

The juxtaglomerular apparatus in fetal and newborn mice (1967)

Kaylor, C. T. ; Carter, J. M.

New York, NY [u.a.] : Wiley-Blackwell

The @Anatomical Record 159 (1967), S. 171-177

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ISSN: 0003-276X

Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Medizin

Notizen: Kidneys of timed fetal and newborn mice of the C57BL stock were sectioned and stained with a modified Bowie technique. The juxtaglomerular cells, indentifiable by their granularity and position, were recognized rather late in fetal life - three or four days before birth. By the eighth day postpartum, the granular cells of the JGA had reached a peak of differentiation and closely resembled the adult JGA in their number, size, granularity, and position. The mesangial cell was often but not always granulated. The granular cell indices (G.C.I.) of fetal, newborn, and adult mice are compared. The high G.C.I. in fetal kidneys in our studies should account for the high renin titre found by others in fetal kidney extracts.

Zusätzliches Material: 1 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/ar.1091590206

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