Respiratory Sensitivity to Carbon Dioxide in Schizophrenia

Respiration ◽  
1987 ◽  
Vol 52 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Rita Verma ◽  
Mantosh Dewan ◽  
Kumar Ashutosh
Keyword(s):  
Carbon Dioxide ◽  
Respiratory Sensitivity

Respiratory sensitivity to carbon dioxide in cross-circulated dogs

1962 ◽  
Vol 202 (5) ◽  
pp. 1024-1028 ◽  
Author(s):  
Frederick F. Kao ◽  
Remedios G. Suntay ◽  
William K. Li
Keyword(s):  
Carbon Dioxide ◽  
Carotid Arteries ◽  
Ventilatory Response ◽  
Sensitivity Coefficient ◽  
Vertebral Arteries ◽  
Arterial Blood ◽  
The Common ◽  
Respiratory Centers ◽  
Common Carotid Arteries ◽  
Respiratory Sensitivity

The effect of CO2 on ventilation was studied in cross-circulated dogs. In these experiments the recipient dog's head was perfused exclusively by arterial blood from the donor dog through anastomoses of the common carotid arteries of the donor to the vertebral arteries of the recipient. The carotid arteries of the recipient dog, as well as its muscles in the neck, were tied. The injection of lipiodol and latex did not reveal leakage from the recipient's head to its body or vice versa. Ventilation and arterial Pco2 of both dogs were determined before, during, and after the inhalation of carbon dioxide of 3, 5, and 7% with 20% oxygen and balance nitrogen by the donor for 20 min or more. The sensitivity of the respiratory centers of both dogs to Pco2 was similar, as indicated by the regression lines relating ventilation in both dogs as a function of arterial Pco2 of the donor dog only. The blood of the recipient's body was hypocapnic when its head was receiving hypercapnic blood. The sensitivity coefficient in both dogs was similar to that of decerebrate dogs during CO2 inhalation. It is inferred that the central CO2 chemoreceptors can account for all the ventilatory response to CO2 inhalation.

Effect of Ketosis on Respiratory Sensitivity to Carbon Dioxide in Obesity

1976 ◽  
Vol 294 (20) ◽  
pp. 1081-1086 ◽  
Author(s):  
Peter I. Fried ◽  
Patricia A. McClean ◽  
Eliot A. Phillipson ◽  
Noe Zamel ◽  
Frederick T. Murray ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Respiratory Sensitivity

Electron Cytochemical Study of Carbon Dioxide Laser Effect on Rhesus Monkey Cornea

1974 ◽  
Vol 32 ◽  
pp. 224-225
Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice
Keyword(s):  
Carbon Dioxide ◽  
Electron Microscope ◽  
Rhesus Monkey ◽  
Carbon Dioxide Laser ◽  
Cytochemical Study ◽  
Laser Effect

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.

The Critical Point Drying Method Applied to Scanning Electron Microscopy of L-929 Cells

1970 ◽  
Vol 28 ◽  
pp. 278-279
Author(s):  
Charles TurnbiLL ◽  
Delbert E. Philpott
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Surface Tension ◽  
Critical Point ◽  
Freeze Drying ◽  
Attractive Alternative ◽  
Crystal Formation ◽  
Critical Point Drying ◽  
Time Required ◽  
Scanning Electron

The advent of the scanning electron microscope (SCEM) has renewed interest in preparing specimens by avoiding the forces of surface tension. The present method of freeze drying by Boyde and Barger (1969) and Small and Marszalek (1969) does prevent surface tension but ice crystal formation and time required for pumping out the specimen to dryness has discouraged us. We believe an attractive alternative to freeze drying is the critical point method originated by Anderson (1951; for electron microscopy. He avoided surface tension effects during drying by first exchanging the specimen water with alcohol, amy L acetate and then with carbon dioxide. He then selected a specific temperature (36.5°C) and pressure (72 Atm.) at which carbon dioxide would pass from the liquid to the gaseous phase without the effect of surface tension This combination of temperature and, pressure is known as the "critical point" of the Liquid.

A global perspective of ground level, 'ambient' carbon dioxide for assessing the response of plants to atmospheric CO2

2001 ◽  
Vol 7 (7) ◽  
pp. 789-796 ◽  
Author(s):  
L. H. Ziska ◽  
O. Ghannoum ◽  
J. T. Baker ◽  
J. Conroy ◽  
J. A. Bunce ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ground Level ◽  
Global Perspective ◽  
Atmospheric Co2

964: Direct Visualization of Renal Hemodyanamics Affected by Carbon Dioxide Pneumoperitoneum

2007 ◽  
Vol 177 (4S) ◽  
pp. 319-319
Author(s):  
Naoto Sassa ◽  
Ryohei Hattori ◽  
Yoshinari Ono ◽  
Tokunori Yamamoto ◽  
Momokazu Gotoh
Keyword(s):  
Carbon Dioxide ◽  
Direct Visualization ◽  
Carbon Dioxide Pneumoperitoneum
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