Carcinoma, Adenoid Cystic ; etiology ; Ear Neoplasms ; etiology ; Humans ; Male ; Middle Aged ; Tympanoplasty ; adverse effects

BACKGROUND: Mesenchymal stem cells (MSCs) have the abilities of self-renewal, multidirectional differentiation and immunomodulation, and have become the focus of current research. OBJECTIVE: To summarize the immunomodulation of MSCs to different immune cells and the clinical applications of MSCs in the treatment of immune-related diseases. METHODS: The first author searched the PubMed and the CKNI databases for relative articles from January 1974 to December 2016. The key words were mesenchymal stem cells, immunomodulation, MSC1 and MSC2, autoimmune diseases in English and Chinese, respectively. Finally, 52 representative articles were included. RESULTS AND CONCLUSION: MSCs can inhibit the function of T lymphocytes, reduce the activation, proliferation and antibody secretion of B lymphocytes, affect the polarization of macrophages, inhibit the maturation of dendritic cells, inhibit the proliferation and toxicity of NK cells, so MSCs have the great potential in the treatment of immune-related diseases. However, MSCs exhibit the opposite immunomodulatory abilities under different inflammatory microenvironments, and moreover the definite and controllable mechanism of this phenomenon is still unclear, Therefore, future investigations may focus on the specific mechanism of MSCs in the clinical treatment of immune-related diseases.

OBJECTIVE:To observe the effects of bisoprolol combined with conventional triple therapy on the efficacy and re-lated indexes of patients with rheumatic heart valvular disease (RVD) combined chronic heart failure. METHODS:110 patients with RVD combined with chronic heart failure were randomly divided into observation group(55 cases)and control group(55 cas-es). All patients were treated with oxygen inhalation,anti-infection,correcting electrolyte imbalance,controlling arrhythmia,and giving digitalis drugs and diuretic drugs(it can be disabled after edema symptom being controlled);based on it,control group was given Enalapril tablet with initial dose of 2.5 mg,once to twice a day,then adjusted to 10-20 mg after 1 week,twice a day+20 mg Spironolactone tablet,once a day+10 mg Propranolol tablet,once a day. Observation group was additionally given Bisoprolol fuma-rate tablet initial dose of 1.25 mg,once a day,and then increased to 10 mg based on condition improved and tolerability after a meal,once a day. They were treated for 12 weeks. Clinical efficacy,and LVEF,LVEDD,LVESD,SBP,DBP,HR before and af-ter treatment and incidence of adverse reactions in 2 groups were observed. RESULTS:The total effective rate in observation group was significantly higher than control group,the difference was statistically significant (P<0.05). Before treatment,there were no significant differences in the LVEF,LVEDD,LVESD,SBP,DBP and HR between 2 groups(P>0.05). After treatment,LVEF in 2 groups were significantly higher than before,and observation group was higher than control group,LVEDD,LVESD,SBP, DBP and HR were significantly lower than before,and observation group was lower than control group,the differences were statis-tically significant(P<0.05). And there was no significant difference in the incidence of adverse reactions(P>0.05). CONCLU-SIONS:Based on conventional treatment,bisoprolol combined with conventional triple therapy shows good efficacy in the treat-ment of RVD combined chronic heart failure,it can improve cardiac function,with good safety.

OBJECTIVE: To investigate the effect of SOX2 on chemotherapy sensitivity of human laryngeal epithelial cells Hep-2. METHOD: We designed and synthesized RNAis for silencing the expression of SOX2 in Hep-2 cells and selected the most effective RNAi by Western blot analysis. Then the recombinant plasmids of pGCsi-H1-SOX2 and pGCsi-H1-NC were constructed and transfected into Hep-2 cells to build cell lines of psiSOX2-Hep-2 and psiNC-Hep-2. CCK-8 assay had been used to test the sensitivity of Hep-2 cells to 5-FU and PTX after silencing SOX2 expression. Hoechst staining had been used to exam the changes of Hep-2 cells apoptosis treatment by 5-FU and PTX after silencing SOX2 expression. Furthermore, the changes of apoptosis-related genes expressions were detected by Western blotting. RESULT: The cell lines of psiSOX2-Hep-2 and psiNC-Hep-2 were successfully established, and the expression of SOX2 protein was decreased 78% in psiSOX2-Hep-2 cells compared with psiNC-Hep-2 cells. After reducing SOX2 expression, the sensitivity of Hep-2 cells to 5-FU and PTX were increased and the IC50 values for 48 h were decreased to 8.12 μg/ml and 5.16 μg/ml. Meanwhile, the apoptosis rate and the expression of apoptotic gene Bax and cleaved caspase-3 expression were dramatically increased and anti-apoptotic genes survivin and Bcl-2 were significantly decreased in psiSOX2-Hep-2 cells compared with psiNC-Hep-2 cells. CONCLUSION Down-regulating the protein expression of SOX2 by RNAi will significantly enhance the sensitivity of human laryngeal epithelial cells Hep-2 to 5-FU and PTX.
Apoptosis ; Cell Line, Tumor ; Cell Proliferation ; Drug Resistance, Neoplasm ; Epithelial Cells ; drug effects ; metabolism ; pathology ; Fluorouracil ; pharmacology ; Humans ; Laryngeal Neoplasms ; metabolism ; pathology ; RNA Interference ; SOXB1 Transcription Factors ; genetics

Objective To investigate the effect of anterior percutaneous endoscopic discectomy (APECD) and open-door laminoplasty (ODLP) through hybrid surgery in the treatment of multisegmental cervical stenosis and giant disc herniation. Methods This study involved 3 patients with multisegmental cervical stenosis and giant disc herniation confirmed by MRI. Among them, there were 2 males and 1 female, with ages from 56-61. All patients showed significant paresthesia or weakness, and were treated between September and November 2016. The surgery was performed by first the ODLP that made spinal cord back shift, and then APECD for the second step. The visual analog scale (VAS) and neck disability index (NDI) were assessed before and after operation. Results The VAS and NDI scores were improved two weeks after operation. No adverse events like spinal cord injury and vascular injury were found during the operation. After operation, no patients were found incision infection, hematoma formation, cerebrospinal fluid leakage, dysphagia, trachyphonia and so on. Conclusion The hybrid surgery of APECD and ODLP for the treatment of the multisegmental cervical stenosis and giant disc herniation can not only decompress the nerve safely and improve the function, but also preserve cervical intervertebral disc and motion segments, therefore delaying the degeneration of adjacent segments with clinical significance.

OBJECTIVE: To research the prevalences of four kinds of bacteria including Alloiococcus otitidis, Streptococcus pneumonia, Haemophilus influenzae, and Moraxella catarrhalis in children with chronic otitis media with effusion (SOM) of the middle ear effusion, and the reproduction of the nasopharynx, so as to explore their meaning for the children with SOM. METHOD: Alloiococcus otitidis, Streptococcus pneumonia, Haemophilus influenza, and Moraxella catarrhal were investigated in the samples obtained from middle ear effusion and nasopharyn- geal swabs, using PCR and conventional bacterial culture methods. RESULT: By bacterial culture, the pathogen detection rate from middle ear effusion was 3.6%,while the nasopharynx was 54.0%, the detection rate of Streptococcus pneumonia, Haemophilus influenza, Moraxella catarrhalis was 10.8%, 27.0%, 4.5%, respectively, the drug susceptibility results for 51 samples of bacterial culture positive showed that 39 cases was sensitivite to the β-lactam antibiotic; By PCR, the number of detecting various kinds of bacteria simultaneously in middle ear effusion or in the nasopharynx were 6 and 34. The bacteria prevalences of S. pneumoniae, H. influenzae, M. catarrhalis, and A. otitidis are 5.4%, 5.4%, 3.6%, and 42.3% in the middle ear effusion, are 25.2%, 27.0%,13.5% and 34.2% in nasopharyngeal, respectively. CONCLUSION (1) PCR method is more sensitively detecting the bacteria than conventional bacterial culture methods. (2) The chronic SOM of children may be a combination of mixed bacterial infection, A. otitidis may be the most common pathogen of children SOM. (3) For children of SOM, if antibiotics are chosen to be used early in the disease, we suggest using the β-lactam antibiotics.
Bacteria ; Bacterial Infections ; complications ; Child ; Haemophilus influenzae ; isolation & purification ; Humans ; Moraxella (Branhamella) catarrhalis ; isolation & purification ; Nasopharynx ; Otitis Media with Effusion ; complications ; microbiology ; Polymerase Chain Reaction ; Prevalence ; Streptococcus pneumoniae ; isolation & purification

OBJECTIVE: Investigate common deafness gene mutations in patients with severe and profound non-syndromic hearing loss in Liaoning in order to understand their hereditary etiologies and characteristics at the molecular level. METHOD: Peripheral blood samples were obtained and the DNA templates were extracted from 128 non-syndromic hearing loss patients who are sporadic in clinics. The deafness gene chip was applied to detect hot-spot deafness gene mutations including GJB2, GJB3, SLC26A4 and mitochondrial 12S rRNA. Deafness etiology questionnaires, pure tone audiometry, auditory brainstem response, tympanometry and temporal bone CT were also applied. RESULT: Various types of gene locus mutations were seen in 52 of the 128 patients (40.6%); (1) GJB2 gene mutations (n=22) included c. 235 del C homozygous mutation (n=10), c. 235 del C heterozygous mutation (n=5); c. 176_191 del 16 heterozygous mutation (n=l); c 35 del G heterozygous mutation (n=l); c. 235 del C/c. 299_300 del AT mutation (n=l), c. 235 del C/c. 176_191 del 16 mutation (n=l), c. 35 del G/c. 176_191 del 16 mutation (n=l); c. 299_300 del AT/c. 919-2 A>G mutation (n=l), c. 235 del C/c. 919-2 A>G mutation (n=l). (2) SLC26A4 gene mutations (n=30) included c. 919-2 A>G homozygous mutation (n=6), c. 919-2 A>G heterozygous mutation (n=17), c. 2168 A>G homozygous mutation (n=l), c. 2168 A>G heterozygous mutation (n=2), c. 2168 A>G/c. 919-2 A>G mutation (n=2), c. 919-2 A>G/GJB2 c. 235 del C mutation (n=2); (3) No GJB3 and mitochondrial 12S rRNA mutation. Genetic deafness was confirmed at the gene level in 24 cases (18.8%) and 28 patients (21.9%) were diagnosed as carriers of genetic deafness gene mutations. CONCLUSION Genetic deafness occupies a large population in deaf community in Liaoning. Molecular genetic screening for these mutations and genetic counseling are effective methods to prevent the occurrence of hereditary hearing loss and provide theoretical guidance.
Adolescent ; Child ; Child, Preschool ; China ; Connexins ; DNA Mutational Analysis ; Deafness ; genetics ; Female ; Genetic Testing ; Humans ; Infant ; Male ; Mutation

Objective The study was conducted to investigate the acute phase of convulsion related problem on the clinical manifestations,imaging and electroencephalograph (EEG) examination of purulent meningitis.Methods Cluster sampling method was employed to select children in our hospital,a total of 301 cases with purulent meningitis was analyzed retrospectively.Among them,62 cases had convulsion.The incidence of convulsion in the acute phase of the purulent meningitis,risk factors,and prognosis were analyzed.Results The convulsion incidence rate of acute purulent meningitis was 20.60％.The partial seizure was eight cases (12.90％).The secondarily generalized seizure following partial seizure was 15 cases (24.19％).The generalized seizure was 32 cases (51.61％).The convulsive status was 7 cases (11.29％).The EEG abnormality was significantly different between the convulsion group and the no convulsion group (P ＜ 0.05).The incidence of brain organic damage was significantly different between two groups (P ＜0.05).The multivariate unconditional logistic regression analysis showed,cause of disease,first symptom,disturbance of consciousness,obvious signs,and cerebrospinal fluid culture with convulsion were the relevant factors (P ＜ 0.01).Conclusions The most common seizure of purulent meningitis was the generalized seizure.Brain organic damage easily resulted in convulsion of purulent meningitis.The days of hospitalization,cause of disease,first symptom,disturbance of consciousness,obvious signs,and cerebrospinal fluid culture with convulsion were the positively relevant factors.Those positively relevant factors in combination of the clinical manifestations,imaging,and EEG examination in children would play an important role in diagnosis,treatment,and prognosis evaluation of convulsion derived from purulent meningitis.Moreover,convulsion affects the disease recovery in children with purulent meningitis.

OBJECTIVE:To establish a RP-HPLC method for simultaneous determination of chlorapheniramine maleate,furacilin and ephedrine hydrochloride in Puma nose drops.METHODS:The analysis was carried on a XDB C 8 column;the mo?bile phase was composed of methanol(A),acetonitrile(B)and0.02mol/L potassium dihydrogen phosphate solutions(containing0.2%triethylamine and adjusted to pH3.0with phosphoric acid,C)with linear gradient elution(0min～3.5min,A∶B∶C=6∶13∶18,8.5min,A∶B∶C=6∶30∶64)and the flow rate was1.0ml/min;the detection wavelength was254nm and the column temperature was30℃.Chloramphenicol was used as the internal standard.RESULTS:The linear ranges were0.04～0.20mg/ml for chlorapheniramine maleate,0.02～0.10mg/ml for furacilin,0.50～2.50mg/ml for ephedrine hydrochlo?ride.The average recoveries were99.44%(RSD=0.48%,n=3)for chlorapheniramine maleate,101.36%(RSD=0.41%,n=3)for furacilin and99.43%(RSD=0.59%,n=3)for ephedrine hydrochloride.CONCLUSION:The method is reliable,accurate and suitable for quality control of Puma nose drops.

Objective To investigate the effects ofamiodarone (AMD) on simvastatin (SV) in human liver microsomes and the possible underlying mechanisms. Methods Time-, NADPH- and concentration-dependent inhibitions were tested in HLM. The logarithm of relative inhibition values was plotted versus preincubation time (0, 5, 10, 15, 20min) for a series concentration of AMD used (0, 2, 5,25, 50 μ mol/L), and the slopes determined by linear regression. These slope values represente the observed inactivation rate constants (kobs). A double-reciprocal plot was then constructed using the reciprocal of the ko～ (y-axis) and the reciprocal of the associated inhibitor concentration (x-axis) to estimate the values ofkinact and K, which were two principal kinetic constants that were specific for mechanism-based inhibition (MBI).drug-drug interactions (DDI) potential was predicted based on in vitro data and by using the in vitro-in vivo extrapolation. Results The time-, concentration- and NADPH-dependent charactga'istics confirmed that when SV was the substrate of CYP3A4, the inhibition of AMD to CYP3A4 is MBI. Kj and kinact value were calculated to be 5.1 μ mol/L and 0.018min-1 The Clint of SV was reduced 2.96-5.63 fold when it was administrated with AMD. Conclusion Based on the results, AMD would inhibit SV metabolism via the mechanism-based manner, which would lead to DDI when they are taken together. Careful clinical observation is recommended when AMD and SV have to be simultaneously prescribed.