LACTATE DEHYDROGENASE ISOENZYMES AND THE REPRODUCTIVE CYCLE IN THE RAT
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چکیده
منابع مشابه
Synthesis and degradation of rat liver lactate dehydrogenase M4. Hybridization in the purification of lactate dehydrogenase isoenzymes.
For the measurement of lactate dehydrogenase (LDH) isoenzyme biosynthesis a new method is presented which is based on the quantitative hybridization of isoenzyme MI with isoenzyme Hq. After reversible dissociation the formation of active LDH M4 was more rapid and occurred to a greater extent than the formation of LDH Hq. The formation of hybrid isoenzymes from the two subunits resulted in an in...
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Incubation of rat hepatocytes with epinephrine inhibited alanine aminotransferase (ALT) (80%) and aspartate aminotransferase (AST) (53%) activities with no effect on lactate dehydrogenase (LDH) activity. Injection of epinephrine caused a progressive increase with time in hepatic LDH activity, being 52% at 24 h. Preinjection with propranolol eliminated the hormone effect and caused further ...
متن کاملLactate Dehydrogenase Isoenzymes in Transected Nerves.
THE recent interest in organ-specific patterns of lactate dehydrogenase (LDH) isoenzymes (WIELAND and PFLEIDERER, 1957; WROBLEWSKI, Ross and GREGORY, 1960; PLAGEMANN, GREGORY and WROBLEWSKI, 1960; WROBLEWSKI and GREGORY, 1961) stimulated search for isoenzyme pattern differences among regions of the brain. VAN DER HELM (1962) found no isoenzymic differences among several regions of the human bra...
متن کاملHormonal influences on the oviducal lactate dehydrogenase and its isoenzymes.
Changes in the specific activities and distribution of lactate dehydrogenase (LDH) isoenzymes have been studied in the oviduct of intact, ovariectomized and ovariectomized-hormone treated rats. Total LDH and M-subunits were higher in the oviduct during estrus compared to early diestrus phase. Ovariectomy lowered the total activity as well as the proportion of H and M-subunits of LDH, with a tot...
متن کاملTissue distribution of mammalian lactate dehydrogenase isoenzymes.
system of Jervis [7] is used here.) Previous electrophoretic examination of the LDH of most other plants was carried out with extracts from leaves [1,2j. Such a study of potato leaves would not have revealed the existence of isoenzymic forms in this species. We have, therefore, examined extracts from various regions of a number of plants: roots, stem-base, upper stems, leaves and any special ti...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1972
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0300425