کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6282706 1615145 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Liposome-encapsulated hemoglobin alleviates hearing loss after transient cochlear ischemia: An experimental study in the gerbil
ترجمه فارسی عنوان
هموگلوبین کپسوله شده لیپوزوم کاهش شنوایی پس از ایسکمی کچلی گذرا را کاهش می دهد: یک مطالعه تجربی در گربه
کلمات کلیدی
حامل اکسید مصنوعی، پاسخ شنوایی مغز، ایسکمی کچلر، ناشنوایی ناگهانی، آسیب مجدد
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
چکیده انگلیسی


- We tested if post-ischemic administration of LEH alleviates cochlea damage.
- Post-treatment with LEH alleviated hearing impairment.
- Post-treatment with LEH alleviated inner hair cell loss.

The effects of liposome-encapsulated hemoglobin (LEH), an artificial oxygen carrier, were experimentally investigated in gerbils in the context of alleviation of hearing loss after transient cochlear ischemia. Animals were randomly assigned to receive 2 mL/kg of either LEH (P50O2 = 15 mmHg) or saline 1 h after the experimental induction of 15 min of ischemia. Sequential recordings of auditory brainstem response (ABR) showed that administration of LEH prevented hearing loss due to cochlear ischemia. The mean ABR threshold at 32 kHz on day 1 was 21 ± 7 dB in the LEH group (n = 6) and 45 ± 6 dB in the saline group (n = 6). Thereafter, hearing impairment gradually improved up to day 7 in both groups. The animals were then subjected to histological study, which revealed that there was more substantial loss of the inner hair cells, but not the outer hair cells, in the saline group as compared to the LEH group. These results suggest that LEH is an efficient agent with regard to protection against hearing loss and underlying hair cell damager due to ischemic insult.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 553, 11 October 2013, Pages 176-180
نویسندگان
, , , , , ,