Autoradiographic studies on RNA synthesis and transport in the Salivary gland ofLygaeus sp. (Hemiptera-Lygaeidae)

Summary Autoradiographic studies using³H-uridine in the salivary gland of adultLygaeus sp. were carried out. The gland cell nuclei, particularly the multiple nucleoli, are the sites of incorporation of the label exhibiting RNA synthesis. The labelled molecules (RNA) are transported to the cell cytoplasm and then into the gland lumen in which no turnover of the radioactivity is observed.I am grateful to my teacher, Prof. P. S. Ramamurty, School of Life Sciences, University of Hyderabad, for his constant inspiration. Grateful acknowledgement is made to Prof. J. P. Thapliyal, Dept of Zoology, B. H. U. for encouragement and to Dr Om Prakash, Dept of Biochemistry, B. H. U. for his valuable criticism.     

Dialyzable serum factors alter cellular immunity in pregnancy

Summary Lymphocyte responsiveness was found to be decreased in pregnant and increased in habitually aborting women. This is attributed to a dialyzable serum factor(s), that can be removed from the surface of lymphocytes by repeated washing.     

The localization of3H-corticosterone in mast cell granules by electron microscopic autoradiography

Zusammenfassung Der Einbau von 1,2-³H-Corticosteron in die Mastzellen der lymphatischen Organe wurde bei Mäusen untersucht. Bei gleichzeitiger Anwendung von Autoradiographie und Elektronenmikroskopie konnte das Corticosteron in den Mastzellen nachgewiesen werden.     

Glycopeptides from normal and ulcered gastric mucosae of pig

Zusammenfassung Die Zusammensetzung der aus normalen und ulzerösen Magenschleimhäuten von Zwergschweinen isolierten Glykopeptide ergibt 50% Sulfat-Ionen weniger als aus denjenigen gesunder Magenschleimhäute.

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This work was supported by the grant No. 70.00079/03 115.1927 from Consiglio Nazionale delle Ricerche (C.N.R.), Italy.     

Threo-3,4-Dihydroxyphenylserine,a poor source of noradrenaline in the rat

Résumé Chez le rat, les injections dedl-thréo-3,4-dihydroxyphénylsérine, un précurseur pharmacologique synthétique de la noradrénaline, provoquent une conversion de moins de 1% au 4-hydroxy-3-méthoxyphényl-glycol, le métabolite urinaire majeur de la noradrénaline dans cette espèce. Un nouveau cheminement qui entraîne une coupure latérale de la chaîne prit environ 10% de la dose et un autre 10% fût excrété comme un amino-acideO-méthylé; le sort de quelque 80% est inconnu.