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Delayed neuronal death in the hippocampal CA1 region after transient forebrain ischemia may share its underlying mechanism with neurodegeneration and other modes of neuronal death. The precise mechanism, however, remains unknown. In the postischemic hippocampus, conjugated ubiquitin accumulates and free ubiquitin is depleted, suggesting impaired proteasome… (More)
Prostaglandin D(2) (PGD(2)), a major cyclooxygenase product in a variety of tissues and cells, readily undergoes dehydration to yield electrophilic PGs, such as 15-deoxy-Delta(12,14)-PGJ(2) (15d-PGJ(2)). We have previously shown that 15d-PGJ(2) potently induces apoptosis of SH-SY5Y human neuroblastoma cells via accumulation of the tumor suppressor gene… (More)
The 26 S proteasome is an evolutionarily conserved ATP-dependent protease complex that degrades poly-ubiquitinated proteins and plays essential roles in a critical part of cellular regulation. In vertebrates, the roles of the proteasome have been widely studied by use of specific inhibitors, but not genetically. Here, we generated a cell line Z(-/-/-)/Z-HA,… (More)
Depression is a kind of mood disorder. The incidence of depressed patients has demonstrated an upward trend in recent years. Symptoms may improve with treatments such as pharmacotherapy and cognitive-behavioral therapy, but such approaches may exert strong side effects, and therapeutic effects can be slow. We studied how acupuncture stimulation would affect… (More)
Acute exposure to gaseous 1,2-dibromo-3-chloropropane (DBCP) caused sex-linked recessive lethal mutations in Drosophila melanogaster males. Brood pattern analysis showed that spermatids and spermatocytes were more sensitive to the lethal-mutation induction by DBCP than were spermatogonia. The mutation induction was not observed in the stage of spermatozoa.
A previous study on rats showed that simultaneous acupuncture stimulation at the "Bai-Hui" (GV 20) and the "Yintáng" (Ex-HN3) acupoints alleviated the state of depression to an extent similar to that achieved by pharmacotherapy. This study investigated whether the alleviation of the depressed state required simultaneous acupuncture at these two acupuncture… (More)
Manual acupuncture at Yanglingquan (GB34) is reported to have a beneficial effect on chronic liver damage. We, therefore, studied the effect of manual acupuncture at GB34 on acute liver damage. Rats were administered carbon tetrachloride (CCl(4)) or olive oil, and direct manual acupuncture was subsequently performed at GB34 or at a sham point (a… (More)