Objective To study the regulatory effect of exogenous fibroblast growth factor(FGF\|2) in expressions of calcitonin gene\|related peptide(CGRP) and FGF\|2 in facial motoneurons after injury. Methods The right facial nerve was transected 6?mm distal to the stylomastoid foraman.A 3?mm\+3 piece of Gelfoam presoaked in 25??l of various test solutions(normal saline,or 16?10 6?IU/L FGF\|2,or 32?10 6?IU/L FGF\|2) was implanted adjacent to the proximal nerve stump.After three days survival,the rats were killed and brainstems were removed.Serial 20??m cryosections were cut through the whole brainstem.The CGRP and FGF\|2 immunoreactivity were studied by immunohistochemisty and image analysis. Results An increase in the CGRP and decrease in the FGF\|2 signals were presented in axotomized motoneurons with saline\|treated animals.In FGF\|2\|treated animals,the lesion\|induced up\|regulation of CGRP and down\|regulation of FGF\|2 were attenuated compairing with normal saline treated animals.Conclusion\ Exogenous FGF\|2 can increase FGF\|2 expression and decrease CGRP expression in rat facial motoneurons after injury.\;[

Objective To explore the expressions of annexin and epidermal growth factor receptor(EGFR) in pediatric middle ear cholesteatoma.Methods Twenty-three children with middle ear cholesteatoma and 26 children with normal skin of external auditory canal(control group) were selected from the children enrolled in the First Affiliated Hospital of Zhengzhou University from August 2014 to March 2016.The expressions of annexin A1 (AnxA1),AnxA2 and EGFR mRNA in cholesteatoma and normal tissues were analyzed by quantitative real-time PCR (qPCR).Protein expressions of AnxA1,AnxA2 and EGFR were evaluated by using Western blot and immunohistochemistry methods.Results The expressions of AnxA1,AnxA2 and EGFR mRNA were significantly increased in cholesteatoma compared with the control group (AnxA1:4.68 ± 1.77 vs.2.65 ± 0.96,U =111.5,P ＜ 0.001;AnxA2:3.89 ± 1.00 vs.2.4 7 ± 0.81,U =84.5,P ＜ 0.001;EG FR:4.97 ± 1.85 vs.3.50 ± 0.95,U =15 3.5,P =0.004).AnxA1 and AnxA2 mRNA expressions were positively correlated with EGFR mRNA (AnxA1 and EGFR:r2 =0.283 2,P =0.009;AnxA2 and EGFR:r2 =0.213 5,P =0.027).Compared with the control group,protein expressions of AnxA1,AnxA2 and EGFR were markedly enhanced (AnxA1:0.450 ±0.031 vs.0.320 ±0.026,U =102.4,P ＜0.001;AnxA2:0.568 ±0.024 vs.0.365 ±0.028,U =94.6,P ＜0.001;EGFR:0.397 ±0.021 vs.0.228 ±0.017,U =128.4,P ＜0.001).The results of immunohistochemistry analysis showed that the ratio of AnxA1,AnxA2 and EGFR positive cells were higher than those in the control group(AnxA1:65.22％ vs.38.46％,x2 =9.296,P =0.026;AnxA2:69.57％ vs.46.15％,x2 =8.378,P =0.039;EGFR:69.57％ vs.50.00％,x2 =10.574,P =0.014).Conclusions The expressions of AnxAl,AnxA2 and EGFR are upregulated in pediatric cholesteatoma,with AnxA1 and AnxA2 expressions positively correlated with EGFR.

Objective To study clinical characteristics and treatment effects on old patients with sudden sen-sorinerural hearing loss .Methods To compare clinical characteristics and effects of 357 cases of unilateral SSHL from Sep ,2013 to Mar ,2015 in the First Affiliated Hospital of Zhengzhou University .The patients were divided into 2 groups :the old group(66 cases)≥60 years ,and the control group(291 cases)<60 years .All cases were trea-ted with drugs to supply nutrition to the nerves and drugs to improve circulation and intratympanic injection of dexa-methasone .Results The genders ,ear sides ,concomitant symptoms and onset time ,degrees of hearing in 2 groups showed no significant difference (P>0 .05) ,but there were less patients with the type in low frequencies (1 .51% ) and more with the type in high frequencies (22 .73% ) and the type in total deafness (50 .0% ) than those of in the control group(14 .43% ,15 .44% ,39 .52% ) .The old group had more patients with systemic diseases (60 .61% ) and the hearing impairment of the other ear (57 .58% ,P<0 .05) .Total effective rate was 70 .03% ,which the old group and the control group were 60 .61% and 72 .16% ,respectively .The difference had no statistical significance (P>0 .05) .The old group's complete recovery rate was 10 .61% ,which was significantly lower than that in the control (P<0 .05) .Conclusion The old group has more patients with systemic diseases and the hearing impairment of the other ear .Their hearing impairment more easily occurs in the type in high frequencies and the type in total deafness . But the complete recovery rate is low ,the doctors and patients should have a reasonable expectation .

Objective To investigate the recurrent etiologic causes in otitis media with effusion(OME).Meth-ods The patients with OME had been conducted clinical evaluation and ventilation tube insertion.Among 255 cases observed,85 cases were recurrence within one year,while 170 cases were recovered.Factors including age,gender, course of disease,smoking environment,recurrent respiratory tract infection,chronic nasal sinusitis,nasal struc-tural abnormalities,adenoid hypertrophy/nasopharyneal lymphadenosis,and mastoid gasification condition,histo-ry of tube insertion,duration of ventilation tube were evaluated by univariate analysis and multivariate logistic re-gression analysis and compared among preschool children,school age children and adults.Results In univariate a-nalysis,it was strongly associated with age,higher prevalence of recurrent respiratory tract infection(χ2= 22.546,P= 0.000),chronic nasal sinusitis(χ2= 5.211,P= 0.023),adenoid hypertrophy/nasopharyneal lymphadenosis(χ2= 10.338,P= 0.002),mastoid pneumatization adverse(χ2= 15.196,P= 0.000)and duration of ventilation tubeand (χ2= 11.347,P= 0.001).In multivariate logistic regression model,five of these factors were found to be predictors of recurrent OME,which were younger age,recurrent respiratory tract infection (P= 0.001,OR= 2.992),adenoid hypertrophy/nasopharyneal lymphadenosis (P= 0.021,OR= 2.198),mastoid pneumatization adverse (P= 0.000, OR= 3.433)and duration of ventilation tube(3~6 m)(P= 0.010,OR= 2.237).When comparing the difference a-mong preschool children,school age children and adults,recurrent respiratory tract infections in preschool and school age children had the statistic significance(P<0.05),and adenoid hypertrophy in preschool had the statistic significance(P<0.05).Conclusion Younger age,recurrent respiratory tract infection,chronic nasal sinusitis,ade-noid hypertrophy/nasopharyneal lymphadenosis,mastoid pneumatization adverse and less time of ventilation tube are the risk factors causing recurrence of OME.When comparing the recurrent preschool children,school age chil-dren and adults cases,more recurrent respiratory tract infection in preschool and school age children have statistic significance,and adenoid hypertrophy in preschool has the statistic significance.

OBJECTIVE To investigate the effect of nuclear factor-kappa B ligand-receptor activator of nuclear factor-kappa B-osteoprotegerin(RANKRANKL-OPG)system on bone resorption in middle ear cholesteatoma,and the reasons why middle ear cholesteatoma in children were more aggressive. METHODS The expression of RANKL and OPG in 21 adults cholesteatoma,17 children cholesteatoma and 18 normal external meatal skin was studied with immunohistochemistry. Semiquantitative analysis was used for comparison and statistical analysis. RESULTS RANKL-positive cells and the ratio of RANKL/OPG in cholesteatoma were significantly higher than that in external meatal skin(P

Objective To investigate the diagnosis and treatment of vertigo associated with changes of head position.Methods 112 patients of vertigo associated with changes of head position were analyzed from June 2006 to December 2007 through the positional tests and imaging examination.Results 45 men and 67 women from ages 12 to 75 (median 50) were included with a total of 112 patients.88 patients were diagnosed as benign paroxysmal positional vertigo(BPPV),76 patients as posterior semicircular canals BPPV,9 patients as horizontal semicircular canal BPPV,3 patients as anterior semicircular canals BPPV,9 patients as suspicious BPPV.They were treated by canalith repositioning procedure,the total improvement rate was 96.9% after 1 week.15 cases of cervical vertigo were treated by physical therapy and medication,the vertigo of 4 patients disappeared and of 11 patients was improved significantly after 2 weeks.Conclusion The positional tests and cervical plain x-ray are the simplest ways to diagnose vertigo associated with changes of head position.Physical therapy and medication are effective.It is suitable to promote in the grass-roots hospitals.

Objective:To investigate the diagnostic value of high resolution CT for temporal bone traumatic facial nerve paralysis and the guidance significance for surgery.Method:Twenty-nine patients of traumatic facial nerve paralysis were investigated.The predictive diagnosis was made according to the clinical data and the image features of HRCT,then a comparative analysis of the preoperative image features and the surgical findings were carried out.Result:The trend of temporal bone fracture displayed on the CT scan was basically consisted with the surgical findings.The direct CT signs of facial nerve injury include the bone fracture line went through the tube,bone tube rupture or continuity interruption,while the indirect CT signs include local incrassation of the facial nerve,lower bone density of the tube,geniculate fossa expansion,oppressed facial nerve,et al.The predictive diagnostic accordance rates of all the image features were above 90%as to the surgical findings.Conclusion:High resolution CT could localize the trend of temporal bone fracture,and is helpful to estimate the extent of facial nerve injury and other complications.High resolution CT could provide reliable basis for clinical diagnosis and trotment.

OBJECTIVE To study the clinical features and therapeutic efficacy of middle ear adhesion.METHODS The clinical data of 40 cases of middle ear adhesion collected during 5 years from 2002 to 2007 were studied retrospectively. RESULTS Part or all of the tympanic membrane of the patients did not move under Siegle otoscopy. The lesions of middle ear adhesion were extensive and invaded all middle ear structures including round and oval windows.The lesions were severe, especially in narrow anatomical spaces such as mesotympanum,hypotympanum and interossicular spaces.Pure tone audiometry showed that average air-bone gap (A-B gap) were (35.34?6.99) dB preoperatively.The average A-B gap were (18.47?5.76) dB 6 months after operation.Follow-up observations and postoperative CT scan showed that tympanic membranes and middle ear cavity recovered well.CONCLUSION There are various degrees of tympanic fibrous adhesion and atelectatic tympanum in middle ear adhesion,especially in mesotympanum, hypotympanum and interossicular spaces.The middle ear adhesion can be treated with operation.The key points for a successful operation include preserving normal tympanum mucosa,opening eustachian tubes, making a bigger middle ear cavity,and performing tympanoplasty with perichondrium-cartilage plates.

Objective The aim of this study was to evaluate the outcomes of auditory perception skills after cochlear implantation in children with malformed inner ear and compare them with a group of congenitally deaf chil ‐dren implantees with a normal inner ear .Methods 21 children with inner ear malformation were retrospective stud‐ied .There were 9 cases with large vestibular aqueduct syndrome (LVAS) ,7 with Mondini abnormality ,5 with com‐mon cavity .The postoperative outcomes of these 21 cases were compared with 21 cases with normal inner ear struc‐ture .The outcomes of all the children after the surgery in 1 year were studied using the soundfield test in frequency ranging 0 .5 to 4 kHz and the auditory perception skills ,and the auditory perception skills consisted of natural envi‐ronmental sound recognition ,consonants recognition ,vowels recognition ,numeral recognition ,tone recognition , monosyllabe recognition ,disyllabe recognition ,trisyllabe recognition ,short sentences recognition ,selective hearing recognition .Results The results of soundfield test and auditory perception skills after cochlear implantation in 9 children with LVAS and 6 with Mondini abnormality had no significant difference (P > 0 .05) comparing with the control cases .Postoperative thresholds in soundfield test were 50 ~ 75 dB HL for 1 case with severe Mondini abnor‐mality ,the mean value of hearing ability score was 70 .5% ,and less than the results of control cases .Postoperative mean thresholds in soundfield test were 65 .26 ± 5 .13 dB HL for 5 cases with common cavity ,the hearing ability score was less than the results of control cases (P< 0 .05) .Conclusion The effect of rehabilitation had no difference between the children with LVAS and the cases with normal inner structure after cochlear implantation ,but was poo‐rer in children with severe Mondini abnormality and common cavity .It was necessary to evaluate the degree of mal‐formation of inner ear structure before cochlear implantation .

Objective To study the effects of the integrity of the tensor tympani muscle on the postoperative hearing recovery and the morphology of tympanic membrane,to provide the reference for the handling of the tensor tympani muscle during the operation.Methods A total of 145 cases of chronic tympanitis were grouped by the integ-rity of the tensor tympani muscle and the implanted types of biological auditory ossicles,the clinical data were ana-lyzed retrospectively.There were 80 cases in the tensor tympani muscle intact group,including 45 cases of PORP group and 35 TORP group.The tensor tympani muscle rupture group of 65 cases consisted of 34 cases of PORP group,and 31 cases of TORP group.The postoperative recovery conditions of tympanic membrane morphology, hearing threshold Ac and air-bone gap(ABG)between the tensor tympani muscle intact group and the tensor tym-pani muscle rupture group were compared 1 month or 3 months,and 6 months after the operation.ResuIts One month after the operation,there was no significant difference in tympanic membrane morphology between the two groups.Three months after the operation,the tensor tympani muscle intact group had a higher ratio about the loca-tion and shape of tympanic membrane ,closer to the normal than the tensor tympani muscle rupture group in which the ratio in the intact group was 81.25% (65/80),while in the rupture group it was 52.31% (34/65 ).After 6 months,with the operation of PORP,the tensor tympani muscle intact group of AC value was 27.48±10.02 dB HL, and ABG value was 13.57±6.36 dB,while the rupture group of AC value was 32.36±9.34 dB HL,and ABG value was 25.73±7.44 dB.With the operation of TORP,the tensor tympani muscle intact group of AC value was 28.76± 7.14 dB HL,and ABG value was 21.02±5.48 dB,while the rupture group of AC value was 39.93 ±5.12 dB HL, and ABG value was 31.41±6.25 dB.The postoperative recovery condition of the tensor tympani muscle intact group was better than those of in the rupture group.ConcIusion The tensor tympani muscle can maintain the morphology and location of the postoperative tympanic membrane.The integrity of the tensor tympani muscle may has a positive effect on the improvement of the postoperative hearing.