Search PubMed⌕ Search

Biomedical subjects

R C Joshi

Publications and source records attributed to R C Joshi.

33 records · Page 2Linked to original sources
PubMed1977

Failure of an antagonist of histamine--chlorpheniramine--to modify the pulmonary vascular response to hypoxia in chronic bronchitis.

Experimental evidence from animals suggests that the response of the pulmonary circulation to hypoxia is mediated by histamine. In 3 patients with chronic bronchitis the pulmonary vascular response to hypoxia was measured before and after administration of chlorpheniramine, a competitive antagonist of histamine. No convincing evidence was obtained of a reduction in the size of the response to hypoxia.

Bronchitis↗
PubMed1975

Prevalence of chronic bronchitis in an industrial population in North India.

A survey for the prevalence of chronic bronchitis in an industrial population in North India is reported. The prevalence of chronic bronchitis is 12.5 percent in 473 subjects between the ages of 17 and 64 years. The prevalence rate of chronic bronchitis is comparable to that observed in areas of low community air pollution in Europe and North America. There is no age-related rise in the frequency of respiratory symptoms. The consumption of tobacco in these subjects is low and is comparable to tobacco consumption of light smokers. The prevalence of chronic bronchitis in smokers is five times the prevalence in non-smokers and is similar to the values reported for light smokers in other surveys. These observations suggest that cigarette smoking is associated with the development of chronic bronchitis, and the differences in the prevalence rate of chronic bronchitis between this survey and other surveys conducted in Europe and North America are mainly due to differences in smoking habits. Air pollution has a minor effect only and ethnic differences do not appear to play any part. Forced expired volume in one second shows a negative correlation with age. It is lower in asymptomatic smokers than in non-smokers and is lower in chronic bronchitis than in controls.

Adolescent↗
PubMedDate not supplied

Role of radiation therapy in the treatment of benign ocular diseases.

Radiation therapy, although a prime treatment modality for malignant disease, has few definitive indications for some benign ocular diseases too. Orbital pseudotumour, Graves ophthalmopathy and pterygium are the conditions where the radiation oncologist has got an important role to play. This article reviews the current status of the role of radiation and its effectiveness in the management of these diseases.

Eye Diseases↗