I T HAS long been known that one of the most striking features of the normal renal circulation is its autonomous capacity to change its resistance in the face of changed arterial pressure, so that renal blood flow stays relatively constant.' 2 Ever since, there has been much question as to whether this renal circulatory autoregulation is caused by a vital vasomotor response or by a passive phys...

The electrochemical behavior of chloral hydrate in aqueous solutions at various pH values was investigated by using polarography. Reduction takes place two steps: one appears as a small limiting current value that corresponds to the reduction unhydrated form, present less than 3%, and another larger more negative potentials corresponding C-Cl bonds hydrated form. schemes for both forms an oxida...

We used constant potential in vivo voltammetry to measure changes in striatal ascorbate in the rat in response to i.p. administration of several non-volatile anaesthetics. Propofol and pentobarbitone, which enhance GABA-mediated neuronal inhibitions, decreased ascorbate current to 27.0 (SEM 7.4) % and 46 (6) % of control, respectively. Chloral hydrate, diazepam alone or with ketamine, and fenta...

I t has been shown (1, 2) that the general cell inhibitors urethane, chloral hydrate, and sulfanilamide inhibit cell division of fertilized Arbacia eggs, and that this inhibition results from an inhibition of the specific fraction of the cell respiration upon which cell division depends. I t was considered to be of interest to study the effects of the chemotherapeutic agent, penicillin, on thes...