Yukiko Umetani

Learn More
The effect of inhibition of glial metabolism by infusion of fluorocitrate (FC, 1 nmol/microl, 2 microl) into the right striatum of the rat brain on the glucose metabolism was studied. Significant increases in [(18)F]fluorodeoxyglucose ([(18)F]FDG) uptake (45 min) in the right cerebral cortex and striatum were observed 4h after the infusion of FC, both as(More)
Receptive field size of rod-driven horizontal cells (HCs) in the carp retina was measured by the spread of responses to the slit of light stimulus with changing the distance from the recording electrode and it was found to decay with a single exponential function. By perfusing 10 microM dopamine (DA) the length constant of rod-driven HCs was reduced to half(More)
Mice were forced to swim for 5 min in water at a temperature of 12 degrees C (cold water swim stress) or 32 degrees C (warm water swim stress), and stress-induced analgesia (SIA) was measured using the tail-flick test. The cold water swim stress induced non-opioid SIA as well as hypothermia, whereas the warm water swim stress caused opioid SIA. The in vivo(More)
It is an obvious fact that the shape of mandibles and its change are much concerned with the force vector of mastication muscles. In reference to the shape of mentum, however, it is yet inexplicable up to the present that the human mentum is such toughly shaped as being bearable against the force induced by mastication. In this paper, the authors show their(More)
Since 1981, we have used the stapes allograft, singly or in combination with homograft incus, in 20 cases of tympanoplasty and in 7 cases of fixed stapes. All of the allograft stapes discussed were procured, processed and stored in 1980 by the Hyogo Ear Bank, the first to be established in Japan. The stapes allograft was used in three situations: an intact(More)
A case of metastatic squamous cell carcinoma of the eyelid from the parotid gland in a 61-year-old woman is presented. Open biopsy of the cervical lymphadenopathy revealed the metastatic lesion of squamous cell carcinoma in the nodes. Histopathological examination of extirpated eyelid tumor also showed secondary squamous cell carcinoma probably from the(More)
Salicylic acid was converted into its O-glucoside when administered to cell suspension cultures of Mallotus japonicus. The efficiency of the glucosylation was highest in the cells grown in Linsmaier-Skoog medium containing 1 μM 2,4-dichlorophenoxy-acetic acid at any scale of culture (7 ml — 3 1). The yield of salicylic acid-O-glucoside could be increased up(More)
Postcapillary venules in rabbit tonsils were studied by scanning (SEM) and transmission electron microscopy (TEM). Tonsils were perfused with Ringer solution and a glutaraldehyde fixative and blood cells were drained away leaving the migrating lymphocytes in the vascular wall. Specimens were freeze-cracked and the luminal surface of the venules was exposed(More)
Cell suspension cultures of Lithospermum erythrorhizon, Gardenia jasminoides and Nicotiana tabacum were capable of glucosylating esculetin to esculin (7-hydroxycoumarin-6-O-β-D-glucoside). Especially, a culture strain of Lithospermum erythrorhizon was superior in the esculetin glucosylating capability; 40 to 50% of esculetin administered to the culture(More)