Ryo Iwai

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Plant pathogens alter the course of plant developmental processes, resulting in abnormal morphology in infected host plants. Phytoplasmas are unique plant-pathogenic bacteria that transform plant floral organs into leaf-like structures and cause the emergence of secondary flowers. These distinctive symptoms have attracted considerable interest for many(More)
A 50-year-old man was admitted to our hospital with a diagnosis of traumatic carotid cavernous fistula. The fistula was observed to disappear spontaneously just after orbital venography. This was confirmed by clinical examinations and subsequent carotid angiogram. The possible mechanisms responsible for the spontaneous occlusion of carotid cavernous fistula(More)
There have been reports that superior cervical ganglionectomy (SCG) is effective as a treatment for cerebral vasospasm following subarachnoid haemorrhage (SAH). On the other hand, denervation supersensitivity is supposed to play an important role in vasospasm. The two accounts contradict each other. To investigate this problem, various examinations were(More)
SUMMARY Emergency revascularization of acute carotid artery occlusion is still controversial.We treated 15 patients (13 men and two women, mean age of 67.3 years) with acute atherosclerotic carotid occlusion by endovascular procedures and evaluated the usefulness of this treatment. All of the patients were evaluated with emergency MRI and MRA before(More)
This study was performed as part of a series of investigations into the relation between cerebral vasospasm following subarachnoid hemorrhage and the sympathetic nervous system. We studied the effect of phenoxybenzamine chloride (POB) and prazosin hydrochloride (Prazosin) on the cerebral vasoconstriction in the basilar arteries of cats induced by(More)
UNLABELLED The pathological mechanism of cerebral vasospasm following subarachnoid hemorrhage has not been well clarified until now. There have been reports that denervation supersensitivity in cerebral vessels occurring after subarachnoid hemorrhage may possible play a role in the appearance of cerebral vasospasm. On the other hand, we have accepted that(More)
A 50-year-old man with traumatic CCF was presented. Spontaneous cure with closure of the fistula occurred just after orbital venography and it was confirmed by clinical examinations and followed up carotid angiography. The possible mechanisms responsible for the spontaneous cure of CCF were discussed.
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