摘要:

Summary.Acetylcholine has a pronounced dilator action on the coronaries of the dog. The observation is in agreement with our previous suggestion that the sywpathetic coronary dilator fibres in the dog are cholinergic.

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00566.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.Nembutal, ether and morphine in hypnotic doses completely abolish the gastric secretory response to insulin. Chloralose depresses but does not prevent the secretory response. The secretory responses become practically normal as soon as the animals regain conciousness.Insulin hypoglycemia does not evoke any gastric secretion in cats.

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00567.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.The gastric secretory response to hypoglycemia produced by insulin remains after decortication. After decerebration the secretory response disappears in most animals. In a few animals a reduced and delayed response remains.

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00568.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.1) The electrodialytic method for the determination of total cations gives 100 % yield for Na+, K+, Ca++.2 Por Mg++a modification is reported consisting in transferring the membrane to the titration flask after completed electrodialysis. Hereby the yield is increased from 20% to 90%‐95%.3 The electrolysis time for Na+and K+must be 11/2hours, and 3–4 hours for Ca++and Mg++.4 By the application of cellophane membranes with analysis of sera, a standard deviation of ± 1.0 to ± 1.3 m. eq. was found and a standard error of mean of ± 0.3%.5 The proteins did not influence the yield of cations in th

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00569.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.1 Changes in the total bases in serum are found:a) a) Increase in total bases from horisontal to upright position, averaging 1.7%.b) Increase in total bases during muscular work, at an average of 3.5%.c) Increase in total bases after food consumption at an average of 3%.d) Reduction in total bases after fluid intake at an average of 2.3 %.e) Reduction in total bases following hyperventilation at an average of 1.2%.2 The recorded changes are primarily caused by variations of the anions. When these changes are not fully compensated in the anion group the total acids are changed. Then as an important compensation, changes in the total bases occur so that the electrolyte neutrality is maintained.3 The normal total bases values are recorded in the material consisting of 46 men and 10 women at an average of 23 years.a) For the total material a normal value is found of 155.0 ni. eq./1. with a dispersion of approx. 10%.b) In fasting persons the following is found: lying position: 151 m. eq., standing position: 153 m. eq.c) In non‐fasting persons the following is found: lying position: 156 m. eq., standing position: 158 m.eq.d) The majority of the normal values are above 148 m. eq./l., but only values below 145 m.eq./l. ar

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00570.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00571.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.Sulfa preparations and methyl thiouracil deplete the stores of vitamin C in the organism. In prolonged use and in large doses they cause a lack of vitamin C which can be ascertained at least in laboratory experiments. Hence it is recommendable that vitamin C be administered in connection with the sulfa therapy especially as infectious cases themselves already cause an increased consumption of the vitamin.

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00572.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.1 The “metabolic” oxygen uptake of the blood of 33 pregnant ewes and of 35 foetuses between the 60th day of gestation and the full term has been measured, by using Barcroft manometric technique.2 The foetal samples have on an average slightly higher oxygen uptake than the samples of maternal blood. With the proceeding of gestation foetal and maternal blood show parallel changes: there is a maximum of the oxygen uptake round the 100th day of gestation, with a fall towards the term. The parallelism and the correlation between foetal and maternal values is most pronounced, if the oxygen uptake is calculated as being due to the corpuscles only.3 The values found for the oxygen uptake of plasma are considerably higher than those reported previously in other species.4 It is pointed out, that — on the basis of the present material — the reticulocyte staining has little if anything to do with the oxygen

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00573.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.A study is made of optical specificity effects in the methylation of ethanol amine and dimcthyl ethanol amine to choline with methionine as methyl donator. It is found that d‐methionine is considerably more efficient as methyl donator than the I‐form. The significance of this fact is briefly discus

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00574.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

Summary.The resting niuscle of the fed rat was found to contain a mixture of phosphorylaseaandb. The total phosphorylase activity as well as the relative proportion of phosphorylasenwas observed to increase during fasting and to decrease on re‐feeding.The change in the relative proportion of the two forms of phosphorylase suggests an alteration in the activity of the prostetic‐group removing (PR) enzyme.The possible significance of these changes as a mechanism regulating the mobilization of niuscle glycogen during starvation is discus

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1949.tb00575.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY