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Biomedical subjects

M Takamatsu

Publications and source records attributed to M Takamatsu.

At least 91 records · Page 5Linked to original sources
PubMed1979

Studies on the progress of occupational cervicobrachial disorder by analysing the subjective symptoms of work-women in assembly lines of a cigarette factory.

The Committee on Cervicobrachial Syndrome in Japan Association of Industrial Health (JAIH) made a report on the questionnaires for checking for the complaints of patients suffering from Occupational Cervicobrachial Disorder (OCD). In order to reveal how the complaints develop in the progress of OCD, we analysed the complaints of 117 workwomen in assembly lines of a cigarette factory by using the questionnaires. And the followings were made clear: 1) At the mild stage of OCD, stiffness or dullness at the neck and shoulders, and eyestrain become remarkable. 2) At the moderate stage, pain at the neck, shoulders, arms and hands, dullness at extremities, general fatigue, pain or heavy feeling in the head, increased irritability etc. become remarkable in addition to the mild stage complaints. 3) At the severe stage, pain and dullness at the back, numbness at arms and hands, hand coldness, sleep disturbance etc. become remarkable in addition to the moderate stage complaints. 4) Various sufferings in daily life such as "I want to lie down at rest time," "I lack patience to go on reading long," "It is hard for me to go on writing long," and "Fixed sitting soon tires me" become more and more frequent as the stage advances. We consider it is important in the diagnosis of OCD to pay attention to the general symptoms such as general fatigue, pain or heavy feeling in the head, increased irritability and sleep disturbance, together with complaints at the neck, shoulders, arms and hands.

Adult↗
PubMed1976

[An epidemiologic study on vibration hazards among workers at the state forests in Kyushu (author's transl)].

There are only very few reports of epidemiologic analysis on vibration hazards among the workers at the state forests of Japan since 1970. It was necessary to perform investigations on the state of vibration hazards anew, through some labor hygienic policies on the prevention of the hazards, such as regulation of the time of using vibrating tools, had been executed to some extent since 1970. From the data of physical check-ups of 861 chain saw users of 24 District Forestry Offices in Kumamoto, Miyazaki and Kagoshima Prefectures in the south of Kyushu, the transition of vibration hazards was studied by using the incidence and prevalence of Raynaud's phenomenon and paresthesia of the fingers as indices. From the yearly transition of the hazards, a tendency was observed of increasing patients with vibration syndrome during the period from 1962 to 1970 when countermeasures on vibration hazards were not sufficient. However, since 1970 the occurrence of Raynaud's Phenomenon has shown a tendency to decrease among the workers with short history of using chain saw and the occurrence of paresthesia of the fingers as indices. From the yearly transition of the hazards, a tendency was observed of increasing patients with vibration syndrome during the period from 1962 to 1970 when countermeasures on vibration hazards were not sufficient. However, since 1970 the occurrence of Raynaud's Phenomenon has shown a tendency to decrease among the workers with short history of using chain saw and the occurrence of paresthesia of the fingers to increase among those with long history. The results are suggestive of making clear the pathophysiology of vibration hazards.

Fingers↗
PubMed1975

Intestinal absorption of cytidine diphosphate choline and its changes in the digestive tract.

Intestinal absorption of cytidine diphosphate choline (CDP-choline), its structural changes in the digestive tract, and hepatic uptake have been investigated in rats using 14C-labeled (14CH3 attached to N of choline) and 3H-labeled (at C5 of pyrimidine) compounds. The results indicate that: 1)CDP-choline is relatively stable in the stomach, but is quickly degraded into cytidine and choline in the intestine; 2) The hepatic uptakes of 14C and 3H reach the maximum in two to three hours after oral administration; 3) Whereas the amount of 14C remaining in the gut is inversely related to the hepatic uptake, no similar correlation is seen with 3H-labeled CDP-choline, and 4) Extrahepatic uptake of 14C and 3H is very small. The possibility of phosphorylation in the mucosa of choline and cytidine has been discussed, based on the differences in individual broken-down products in the intestinal lumen and mucosa.

Animals↗