نتایج جستجو برای: calyceal microlithiasis
تعداد نتایج: 733 فیلتر نتایج به سال:
The thesis put forward by Hodson (1959) from radiological evidence that renal scars due to ischaemia show a narrowed parenchyma associated with a normal calyceal pattern, whereas in focal pyelonephritic scars the narrowed parenchyma is associated with clubbing of the calyx in the affected area, has been investigated anatomically. The thesis finds considerable support and the importance of caref...
The diagnosis of a testicular sclerosing Sertoli cell tumor is rare. Approximately 17 cases have been previously described in the literature worldwide. We present a case and review the evaluation and surgical management of a sclerosing Sertoli cell tumor presenting in a 26 year-old African-American adult, in association with testicular microlithiasis and oligospermia. Imaging techniques and the...
Usher syndrome type 1 (USH1) causes combined hearing and sight defects, but how mutations in USH1 genes lead to retinal dystrophy in patients remains elusive. The USH1 protein complex is associated with calyceal processes, which are microvilli of unknown function surrounding the base of the photoreceptor outer segment. We show that in Xenopus tropicalis, these processes are connected to the out...
The mammalian medial nucleus of the trapezoid body (MNTB) harbors one of the most powerful terminals in the CNS, the calyx of Held. The mechanisms known to regulate this synaptic relay are relatively ineffective. Here, we report the presence of a remarkably robust and fast-acting glycinergic inhibitory system capable of suppressing calyceal transmission. Evoked glycinergic IPSCs were relatively...
Cells in the anteroventral cochlear nucleus (aVCN) send out calyceal axons that form large excitatory somatic terminals, the calyces of Held, onto principal cells of the contralateral medial nucleus of the trapezoid body (MNTB). It is unclear which fraction of these axons might form more than one calyx and whether this fraction changes during development. We combined in vitro anterograde tracin...
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