Hearing loss caused by cochlear damage is the main symptom of sudden deafness (SD). Some patients also suffer from vestibular symptoms. In recent years, more attention has been paid to the vestibular dysfunction in patients with SD. The lesions could involve the whole inner ear in SD patients with and without vertigo. Comprehensive evaluation of vestibular function may help us understand the extent of lesions in sudden deafness and analyze the pathogenesis of disease. A less involvement of inner ear lesion may indicate a better hearing recovery.
Cochlea ; injuries ; Hearing Loss, Sudden ; diagnosis ; pathology ; Hearing Tests ; Humans ; Vertigo ; Vestibule, Labyrinth ; physiopathology

Objective To investigate the origin of prostatic blood-supply by digital subtraction angiography (DSA) and provide references for the arterial embolization of prostatic hyperplasia. Methods A total of 72 male patients with successful selective and super-selective prostatic arterial catheterization angiographies were observed and recorded the original arterial blood-supply of the prostate, number of the prostatic arteries and the predominant blood supply. Results The blood-supply of prostate is very complicated including the original prostatic arterial supply from the inferior vesicle arteries (69); the internal iliac arteries (63); the internal pudendal arteries (52); the inferior rectum arteries (29); the superior vesicle arteries (14). The predominant arterial supply include the internal iliac arteries (37); the inferior vesicle arteries (20); the internal pudendal arteries (6) and the inferior rectum arteries (2). Conclusion Arterial contrast medium angiography can correctly demonstrate and assess the original arterial supply of prostate, providing significant guidance for further interventional embolization.

OBJECTIVE: To observe waveform differences among ocular vestibular evoked myogenic potentials (ACS-oVEMP) elicited by different types of air conducted sound in normal young Chinese subjects. METHOD: Twenty-two adult volunteers (44 ears) were recruited as research subjects including 12 males and 10 females aged between 18 and 35. Five hundred Hz tone burst, 125 Hz tone burst and click were employed as stimulus for conventional ACS-oVEMP examinations in bilateral ears of each subject. The response rate, threshold, n I latency, p I latency, n I-p I latency interval, amplitude and inter-aural asymmetry were recorded and compared among groups. RESULT: The response rate was 100% (44/44) in 500 Hz tone burst group, 40.9% (18/44) in 125 Hz tone burst group and 29.6% (12/44) in click group There were statistical significant differences between the 500 Hz tone burst group and the other groups (P < 0.05). Waveform amplitude was the largest in the 500 Hz tone burst group (7.3 +/- 5.5) muV than that in the 125 Hz tone burst group (3.8 +/- 1.5) muV and that in the click group (5.8 +/- 1.3) muV, which had statistically significant differences between the former and the later two groups (P < 0.05). Other waveform parameters presented similar differeces. CONCLUSION ACS-oVEMP waveforms could be largely affected by different stimulus. 500 Hz tone burst was the best stimulus with highest response rate, biggest amplitude and therefore most easily recognizable waveform in ACS-oVEMP examination.
Acoustic Stimulation ; Adolescent ; Adult ; Asian Continental Ancestry Group ; Female ; Humans ; Male ; Vestibular Evoked Myogenic Potentials ; Young Adult

Objective To investigate the effects of benazepril on the expression of receptors for advanced glycation end-products(RAGE)in diabetic rat kidneys,and to explore its mechanisms of renal protection in diabetic rats. Methods Thirty SD rats were randomly divided into three groups(n=10 in each group): normal control group,diabetic control group and diabetic with benazepril group.Blood glucose,blood lipid,HbA1c,kidney to body weight ratio and 24 h urinary protein excretion were detected after 12 weeks.RAGE mRNA level was analyzed by quantitative RT-PCR. Results Compared with the normal control group,the blood glucose,HbA1c,triglyceride,total cholesterol and low density lipoprotein cholesterol in the diabetic control group and diabetic with benazepril group were significantly increased(P0.05).The kidney to body weight ratio,24 h urinary protein excretion and RAGE mRNA level in the diabetic with benazepril group were significantly higher than those in the normal control group(P

Objective To investigate the effects of valsartan on the expression of receptors for advanced glycation end-products(RAGE) in kidneys of diabetic rats,and to explore its renoprotection mechanisms. Methods Thirty rats were divided into normal control group,diabetes control group and diabetes with valsartan group(n=10).Blood glucose,blood lipid,HbA1c,kidney to body weight ratio and 24 h urinary protein excretion were measured after 12 weeks.RAGE mRNA level was detected by real-time quantitative PCR. Results Compared with normal control group,kidney to body weight ratio,24 h urinary protein excretion and RAGE mRNA were significantly increased in diabetes control group.Compared with diabetes control group,kidney to body weight ratio,24 h urinary protein excretion and RAGE mRNA were significantly decreased in diabetes with valsartan group. Conclusion Valsartan can inhibit renal hypertrophy and decrease urinary protein excretion in diabetic rats.The renoprotective effects may be related to its inhibition on RAGE expression.

AIM: To evaluate the preservation of anterior capsule during vitrectomy and lensectomy.ment (RD) and grade C proliferative vitreoretinopathy (PVR)underwent pars plana vitrectomy (PPV) and pars plana lensectomy (PPL) with preservation and polishing of the anterior capsule. Of the 15 eyes, 4 eyes had giant tear, 3 had recurrent rhegmatogenous retinal detachment (RRD), 2 had diabetic retinopathy. Totally 6 eyes had gas and 9 had silicone oil tamponade. The surgeries were evaluated according to the visual acuity (VA) and the postoperative complications during the follow-up of at least 3 months.in all eyes, improved by 3± 3 lines overall. Eight eyes were implanted posterior chamber intraocular lens (PCIOL) successfully at 2-3 months after operation, including 6 having gas and 2 having silicone oil tamponade. No eyes had central anterior capsule opacity, corneal decompensation, puplillary block, retina redetachment or other complications.an intact anterior capsule in eyes with RD and PVR. Preserving the anterior capsule can help preventing intraoperative and postoperative complications of gas or silicone oil, simplify future PCIOL placement, and maintaining a normal iris appearance.

Objective To investigate the changes of soluble CD105,transforming growth factor-beta1(TGF-β1) and vascular endothelial growth factor(VEGF) in esophageal cancer(EC) patients,analyzing its clinical significance.Methods Collecting 56 cases of gastric cancer(observation group) and 49 cases of healthy people(control group)from Nov.2014 to Jan.2016 as the research objects.The levels of soluble CD105,TGF-β1 and VEGF were detected in EC patients pre-and post-operation and healthy subjects.The data of soluble CD105,TGF-β1 and VEGF were analyzed in the two groups.Results The pre-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were significantly higher than those in the control group,the difference was statistically significant(P<0.05).The pre-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were significantly higher than post-operation levels,the difference was statistically significant(P<0.05).The post-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were not statistically different with control group(P>0.05).Conclusion The levels of soluble CD105,TGF-β1 and VEGF could be abnormal in patients with EC,which might be the index for monitoring the clinical disease condition and judging the prognosis of the EC.

Baculoviral IAP(inhibitor of apoptosis protein) gene was identified firstly in IAP gene family.The structurcal feature of baculoviral IAP genes are characterized BIR and RING domain;Despite similar to P35 in antiapoptotic function,baculovrial IAP and P35 differ in structure and mechnism of action.Phylogenetic analysis of IAP genes and lots of evidence sppport the origin of this viral gene by capture of a host gene early in the evolution of Lepidoptera.

To study the effect of Gegen Qinlian decoction and its major effective components on five hepatic microsomal CYP450 isozymes in rats. The in vitro hepatic microsomal incubation technique was used to co-culture Gegen Qinlian decoction and its major effective components together with each probe substrate. HPLC-MS/MS was used to establish the analytical method for metabolites of the five isoform probe substrates of CYP450 isozymes, detect the linearity among micoromal protein concentration, incubation time and metabolite formation amount. And HPLC-MS/MS was applied to determine the formation rate (V) of corresponding metabolites (acetaminophen, 4-OH-chlorzoxazone, dextrophan, 6-OH-chlorzoxazone and 6β-hydroxytestosterone) specific probe substrates of the five isoform probe substrates of CYP450 isozymes (phenacetin, polbutamide, dextromethorphan, chlorzoxazone, testosterone), in order to determine the activity of each isozyme. The result showed good linearity among acetaminophen, 4-OH-tolbutamide, dextrophan, 6-OH-chlorzoxazone and 6β-hydroxytestosterone, satisfactory precision, stability and average recovery, suggesting the method was feasible. The optimized in vitro microsomal incubation conditions conformed to the requirements in the guideline of drug-drug interaction. Gegen Qinlian decoction showed different degrees of inhibitor effect on 5 CYP450 isoforms (CYP1A2, CYP2C11, CYP2D2, CYP2E1, CYP3A1/2). Its major effective component berberine could inhibit each CYP450 isoform at high concentrations (except for CYP1A2, CYP3A1/2).
Animals ; Chromatography, High Pressure Liquid ; methods ; Cytochrome P-450 Enzyme Inhibitors ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Isoenzymes ; antagonists & inhibitors ; Liver ; enzymology ; Rats ; Tandem Mass Spectrometry ; methods

The effect of phenol concentration on the structure and function of microbial communities,which were cultured in different conditions using coking wastewater biofilm as seeding,was investigated by Biolog and denaturing gradient gel electrophoresis(DGGE)methods.The less number of bands of cultivated sam-ples on the denaturing gradient gel electrophoresis fingerprint of 16S rRNA gene indicated reduction of di-versity after enrichment and cultivation.Some bands on the DGGE gel were significantly influenced by the phenol concentration in medium.The results of Biolog showed that the original biofilm sample had the highest substrate utility capacity as measured by average well color development(AWCD).But low concen-tration of phenol enriched sample S7 showed more diverse activity on the utility of Carboxylic acids.The principal component analysis(PCA)of Biolog data revealed that the metabolic patterns were similar when using the same phenol concentration,although the sample S7 much less similar to other cultivated samples.These results suggested that the enrichment and cultivation with phenol supplemented decreased the diver-sity and also changed the metabolic function of the microbial community.Lower phenol concentration in-creased the microbial community metabolic activity.The phenol degrading capacity of isolates from each samples indicated that the enrichment and cultivation condition had changed the type and property of cul-truable bacteria.Based on these results,we concluded that the different microorganisms will be isolated un-der different cultivation condition.