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Biomedical subjects

S Takemoto

Publications and source records attributed to S Takemoto.

102 records · Page 6Linked to original sources
PubMed1984

Determination of trialkyltin, dialkyltin, and triphenyltin compounds in environmental water and sediments.

An analytical procedure for the determination of trialkyltin (tributyltin, tripropyltin), triphenyltin and dialkyltin (dibutyltin) compounds in environmental water and sediment was studied. Water samples were extracted into benzene with hydrochloric acid and sodium chloride. Sediment samples were extracted into methanolic hydrochloric acid and converted into benzene. Silica gel, which was impregnated with hydrochloric acid and activated, was used for clean-up of these compounds. These extracts of organotin chlorides were hydrogenated with an ethanol solution of sodium borohydride. Organotin hydrides were measured by gas chromatography with electron-capture detection. Recoveries of these compounds were ca. 70-95% from river water and sediment samples. The detection limits were 0.4-0.8 micrograms/l in water and 0.02-0.04 micrograms/g in sediment samples.

Chromatography, Gas↗
PubMed1982

Deliberate buffy-coat transfusions and the risk of antibody formation.

Antibody formation was monitored after buffy-coat transfusions were given at weekly intervals for 9 weeks or a single injection of buffy-coat pooled from ten different donors was given. Among patients with no prior transfusion history, 7 patients given repeated transfusions did not develop warm B or T cytotoxins. Among 25 patients receiving pooled buffy-coat, only 1 patient (who had 3 prior pregnancies) developed warm B and T cytotoxins. In contrast, approximately one fourth of patients who had prior blood transfusions developed warm B and T cytotoxins with either repeated or pooled buffy-coat transfusions. We conclude that buffy-coat from 10 donors given weekly or as a single pooled injection does not produce warm B and T cytotoxins in nontransfused patients, but does function as a secondary stimulus in primed patients.

Antilymphocyte Serum↗
PubMed1976

[An infantile skull fracture followed by the enlarging of the fracture line ("enlarging skull fracture") (author's transl)].

We experience sometimes an infantile skull fracture which is followed by the skull fracture line and bulging of the fractured area day by day after the head injury. Since John Howship reported the case of the partial absorption of the right parietal bone, arising from a blow on the head in a child aged 9 month in 1816, this phenomenon was variously described meningocele spuria, traumatic cephalohydrocele, leptomeningeal cyst, fibrosing osteitis, cerebrocranial erosion, traumatic meningocele, die wachsende Schädelfrakture, growing skull fracture, etc. So called "growing skull fracture" has generally the triad of the symptoms which are the parietal skull fracture in infancy or childhood, traumatic dural tears, and subsequent enlargement of the fractures. And it is said that the dural tear is an indispensable condition for the developing of the "growing skull fracture". But we recently had the case of a 14 day old male infant who had neither traumatic dural tear nor subdural hematoma, but the progressive enlarging of the fracture line in the left parietal bone. The authors suggest that there should be the difference between the growing skull fracture (with the dural teat) and the enlarging skull fracture (without the dural tear).

Fractures, Ununited↗
PubMedDate not supplied

MR image and CT scan of a tuberculous abscess in the gluteus maximus muscle.

A 77-year-old man had rapidly increased intramuscular tuberculous abscess in his left buttock. Radiographs showed a bone defect in the left ischium. Postcontrast CT scanning revealed marginal enhancement. MR imaging showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. T1-weighted MR images with Gd-DTPA enhancement showed enhancement of the wall. Bone defect and marginal enhancement on postcontrast MR images and on postcontrast CT images are image character of the intramuscular tuberculous abscess.

Abscess↗