Effect of chemical sympathectomy,adrenalectomy and adrenergicα- andβ-blocking agents on the development of hyperglycemia induced by streptozotocin in the rat

Summary The sympathetic nervous system in the rat does not play any significant role in the streptozotocin-induced and tolbutamipe-induced hypoglycemia.     

A wide spectrum of resistance to pyrethroid insecticides inMusca domestica

Summary Selection of a strain of house flies with the pyrethroid bioresmethrin has resulted in a wide range of cross resistance to 15 other pyrethroid insecticides.     

Phospholipid composition ofDipylidium caninum

Summary The phospholipid composition ofDipylidium caninum has been studied. Chloroform-methanol-soluble fraction amounted to 2.4% and phospholipids to 0.5% of the wet weight of the parasite. Phosphatidyl choline and phosphatidyl ethanolamine represented the bulk of the phospholipids, whereas phosphatidyl serine, phosphatidyl inositol, lysolecithin and lysophosphatidyl ethanolamine were present in minor amounts. Sulfatides were also identified in this parasite.     

The control of contraction activation by the membrane potential

Summary Force measurements under voltage-clamp control were performed in short toe muscles of the frog. The results show a) that the activation of force development and its repriming process can at least qualitatively be correlated to charge movement kinetics; b) that caffeine improves EC coupling by potentiating the potential dependent activation process.This work was supported by DFG (SFB 114 Bionach) and DAAD.     

Cardiac glycogen fractions in the ventricles of fasted and non-fasted,exercised rats

Zusammenfassung Vergleich von Glykogenfraktionen aus Ventrikeln männlicher Albinoratten, die 24 h gefüttert wurden, mit Nichgefütterten. Letztere verbrauchten meistens TCA (ungebundenes Glykogen) nach Bewegung, während gefütterte Ratten sowohl Rest-Glykogen (gebundenes) wie auch TCA Glykogen verbrauchten. Die Glykogenabnahme war im linken Ventrikel nach Bewegung grösser als im rechten.

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This investigation was supported by Public Health Service Research Grant No. HE 06747.