The results of study in the IIIrd year period are as follows.
The relationship between the number of cases and consumption of QuinoformWe traced the yearly number of cases of SMON developed during treatment of abdominal symptom and the yearly consumption of Quinoform for 7 years period from 1965 through 1971 at 14 national hospitals in the nationwide scale; i. e. Noboribetsu, Sendai, Tochigi, Chiba, Konodai, the 1st Tokyo, the 2nd Tokyo, Yokohama, Nagoya, Tsu, Osaka, Okayama, Kure and kochi National Hospitals.
a) there is no relationship between the yearly numder of development of SMON during treatment of abdominal symptom and the yearly consumption of Quinoform at each hospitals.
b) although the each national hospital plays the important roll as the center in that district, there were some number of cases of SMON received Quinoform at some other hospital prior to visit us, and on the contrary there were some number of cases received Quinoform at the national hospital but treated by some other hospital, therefore these investigations are unsatisfactory to obtain distinct conclusion.
The effects of additional administration of Quinoform upon neurological stateIn the stage after development of neurological signs and symptoms, we inquired about the effect of additional administration of Quinoform upon neurological state in 80 cases.
a) on the occasion of one round administration of Quinoform (26 cases), paresthesia, impairment of superficial and deep sensation, impairment of motor system and impairment of vision, etc. became worse in much cases, though there were still improved or invariable cases in considerable number. Particularly the worsen cases were below half the number among female below the age of the fourth decade
b) on the occasion of two rounds administration of Quinoform, and in the case received below 30gm as initial round (10 cases), aggravation of the neurological symptoms were below half the number, whereas in the case received over 31gm as initial round (5 cases) the aggravated cases were found more to some extent, though these cases were not enough to come to a distinct conclusion.
c) on the occasion of three rounds administration of Quinoform, in the case received below 30gm as initial and the second round (3 cases) the neurological symptoms became worse, and in the cases received over 31gm (3 cases) the neurological symptoms were not aggravated, but these cases were so few that it is hard to be interpreted.
The results of investigation on the prognosisThe prognosis of this illness was investigated on 130 cases, in which generally speaking the male was better to improve than the female, and it might be caused by the higher rate of contraction of the female (the ratio of male to female was 1 to 2.4) and more severe cases found in the female.
Only the rate of improvement of paresthesia was higher in the female than the male, but that is not so well evaluated because this kind of sensation is merely based on the subjective sense.
Speaking about the age, the rate of improvement of symptom is higher below the fourth decade than above that age group.
The rate of improvement concerning the time from the onset of illness, the group within 2 years is higher than the group over 3 years.
The effects of Quinoform on the enteric bacterial flora in miceThe investigations were designed to study the role of enteric bacterial flora on effects of Quinoform given by oral administration. The disturbances of enteric flora and histological alterations were demonstrated in the mice administered perorally with Quinoform 10mg per day, although the striking changes of distribution of enteric bacterial flora and histopathological findings have not been revealed in the mice introduced perorally with Quinoform 3mg per day.
It should be emphasized that qualitative and quantitative distributions of enteric bacterial flora would be associated with development
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