M. extract ameliorate -phenylenediamine-induced toxicity in keratinocytes.

-Phenylediamine (PPD), a major component of hair dyeing ingredients, can induce allergenic sensitization and exert mutagenic, tumorigenic and cytotoxic effect. In this study, we determined the cytotoxic effect of PPD on human keratinocytes and evaluated the protective effect of M. extracts (RSE) on PPD induced cytotoxicity for the first time.

Length and sequence effect on the B-Z transition of [d(A-T)] oligonucleotide induced by a cationic porphyrin.

trans-BMPyP induced the B-Z transition for alternated AT oligonucleotides as it was evident by inversed CD spectrum. The transition occurred simultaneously with appearance of the extensive stacking of porphyrin. Complete B-Z transition required at least 14 base-pairs long.

Cochlear implantation after bilateral transverse temporal bone fractures.

Patients deafened by a severe head injury are rarely encountered. We report a case of a 65-yr-old man with bilateral transverse temporal bone fractures due to head injury. He underwent cochlear implant and achieved a satisfactory auditory rehabilitation.

A case of unilateral sensorineural hearing loss caused by a venous malformation of the internal auditory canal.

Intracranial vascular malformations can be classified as telangiectasis, varices, cavernous malformations, venous malformations (VMs), or arteriovenous malformations. VMs are congenital vascular malformations of the brain thought to be anomalies of the normal venous drainage. VMs are the most common intracranial vascular malformations documented by brain imaging and by autopsy series.