Cilia ; ultrastructure ; Humans ; Maxillary Sinus ; ultrastructure ; Microscopy, Electron, Scanning ; Mucous Membrane ; ultrastructure

Dendritic Cells ; Humans ; Rhinitis, Allergic, Perennial ; Rhinitis, Allergic, Seasonal

Objective To summarize the clinical experience of urethral realignment for treating early urethral injury under the guidance of ureteroscope,and evaluate its curative effect.Methods Twenty-nine male patients with urethral injury were selected,and 12 patients of posterior urethral injury,17 patients of former urethral injury.All the patients were treated with urethral realignment under the guidance of ureteroscope,postoperative indwelling catheter 3-8 weeks,every 7-16 days changed diameter increase 2 F the catheter 1 time.Results The 29 patients with urethral injury were a indwelling catheter success,all patients were no incontinence after operation 3 months.In the 29 patients,27 patients were urination unobstructed after catheter removal,2 patients were appeared urine line slim after 2 weeks,the 2 patients were normal urination after short urethral expansion.Conclusions The urethral realignment for treating early urethral injury under the guidance of ureteroscope has simple,lower complication,rapid recovery,better effect.The continuous flexible progressive urethral expansion and the strict nursing,which can effectively reduce the occurrence of urethral stricture.

Clinically,heparin-induced thrombocytopenia (HIT) is an uncommon but serious disease,which is induced by the use of immune unfractionated heparin or low-molecular-weight heparin.The overall incidence of HIT is about 0.6％-5.0％.Nevertheless,in clinical practice it is profoundly dangerous,especially for patients who are receiving cardiovascular surgery or interventional therapy.At present,HIT is a hot clinical research subject.This paper aims to make a brief review about HIT pathogenesis,epidemiology,clinical evaluation and treatment,etc.

Objective To investigated the role of the autophagy lysosomal pathway in PD cells and the possible molecular mechanisms. Methods A dopaminergic neuronal injury model was induced by 6-OHDA in PC12 cells . Autophagosomes in PC12 cells were examined by transmission electronmicro-scopy( TEM ). The expression of LC3- Ⅱ , Cathepsin B were assayed by western blot analysis. Results TEM revealed that the autophagosomes were increased in PC12 cells after 6-OHDA treatment and appeared apoptosis. The LC3-Ⅱ (2h:52.57 ±2.27,4h:56.83 ±3.51,6h:73.43 ±5.41,12h:103.90 ±2.57,24h: 100.40 ±3.91 )and Cathepsin B expression ( model group: 113.80 ± 4.46; normal group 35.89 ± 3.40) were increased after 6-OH DA treatments (P ＜ 0.05 or P ＜ 0.01 ). Conclusion The results indicate that autophagy lysosome pathway is involved in 6-OHDA-induced cell death in PC12 cells.

HPLC is widely applied in the analysis of chemical drugs. In order to regulate the use and maintenance of HPLC col-umn and guarantee the analysis quality of HPLC, the classified management of HPLC column was explored in the paper from the follow-ing five aspects:file establishment, recipient and return management, column performance evaluation, information accumulation of ap-plication range, and maintenance and abandonment of HPLC column.

BACKGROUND:Psychiatric patients are the high risk group of people who are liable to commit suicide.Recently,research on neurobiology and genetics of suicide mainly concentrates in the study of 5 hydroxytryptamine(5 HT) system.It is found that T102C polymorphism of 5 HT2A receptor gene is associated with suicide in depressive patients. OBJECTIVE:To investigate the correlation of A 1438G polymorphism of 5 HT2A receptor gene with attempted suicide in psychiatric patients. DESIGN:An observational comparative study of taking the patients as subjects and healthy physical examinee as the controls. SETTINGS:A psychiatric department in a municipal hospital and a neurological department in a university hospital. PARTICIPANTS:All the samples in the research were collected from the Department of Psychiatry of Yangzhou Wutaishan Hospital from March to September 2002.Analysis of genotype was completed in the Neurobiological Laboratory of Xuzhou Medical Institute from October to December 2002.Inclusive criterion:patients met the diagnostic criteria of schizophrenia or affective disorder in the third edition of the Chinese Classification and diagnostic criteria of Mental Disorders(CCMD 3) and Diagnostic and Statistical Manual of Mental Disorders Fourth Edition(DSM IV).Exclusive criterion: parasuicider with idea or behavior of hurting oneself,but without intention to die.According to whether there was suicidal behavior or intention,116 patients were divided into 2 groups:attempted suicide group[n=52,35 males and 17 females,with an average age of (44± 13) years old] and no suicide group [n=64, 44 males and 20 females, with an average age of (48± 15) years old].Other 63 cases were taken as the normal controls[33 males and 30 females, with an average age of (55± 17) years old]. INTERVENTIONS:DNA of all the participants was extracted with the routine method of chloroform saturatedphenol leukocyte pheresis.The polymorphism of 5 HT2A receptor gene was analyzed with the restriction fragment length polymorphism. RESULTS:The G allele frequency of A 1438G polymorphism in the attempted suicide group(0.52) was significantly higher than that in the normal control group(0.39)(χ 2=3.91,P< 0.05).There were significant differences in the distribution of the 3 genotypes of AA, AG and GG between the attempted suicide group(0.23,0.50, 0.27) and normal control group(0.32, 0.59, 0.09)(χ 2=6.12,P< 0.05). CONCLUSION:Attempted suicide of psychiatric patient is associated with A 1438G polymorphism of 5 HT2A receptor gene.G allele may be a risk factor for the attempted suicide of psychiatric patient.

Objective To investigate the location of receptor interacting protein 3( RIP3) in Necroptosis and its function in this signal passage, and explore the relationship between receptor interacting protein 1 ( RIP1 ) and RIP3 in nuclear translocation. Methods Primary cerebrocortical neurons were cultured for 12 days,then pre-treated with zVAD-fmk(20μ,mol/L) for half an hour to block apoptosis. ①Extracting nuclear and cytoplasmic protein after neurons were exposed to TNF for different time ,then protein levels of RIP3 were analyzed by western blot and immunofluorescence for qualitative observation;②In the following research,the neurons were treated with Nec-1 and shRlPl ,then the protein level of RIP1 and RIP3 with western blot were analyzed, cell viability were determined by measuring LDH levels. Results ①In signaling pathways of necroptosis, the protein level of RIP3 in cytoplasmic decreased gradually with prolonged TNF exposure, to the corresponding it rolled up in nucleus and a-chieved the peak in 12 hours of TNF treatment ( Cytoplasmic 0. 45 ± 0. 03 ,0. 41 ± 0. 02,0. 73 ± 0. 03 ,0. 90 ± 0.01,1.15 ±0.04,1.30 ±0.02,0.99 ±0.03,0.63 ±0. 03;Nucleus 0. 07 ±0.02,0. 26 ±0.02,0. 57 ±0. 02,0. 68 ± 0.02,0. 80 ± 0.01,0.92 ± 0.02,1.28 ± 0.03,0. 87 ± 0.02) (P < 0.01). ②Blocking the relationship between RIP1 and RIP3 with necrostatin-1 and shRIPl , nuclear translocation of RIP3 decreased and caused a great increase in cell viability( 1.00 ±0.05,0.39 ±0.03,0.50 ±0. 03) (P<0. 01). Conclusion RIP3 mainly locates in cy-tolymph of normal cells,it translocates into nucelus as necroptosis takes place. RIP1 function with RIP3 in nuclear translocation. Block nuclear translocation of RIP3 is a potential way to protect cells.

Objective:To explore social support and personality characteristic of patients with clinically chronic pains to provide a new idea for clinical psycho-intervention.Method:45 patients with clinically chronic pains were evaluated by the Symptom Checklist(SCL-90),EPQ and SSRS,and compared with the control group.Results:Somatization,interpersonal sensitivity,anxiety,fear and psychotic factors have significant differences from those of the control group when being compared(p

AIM: To observe the effect of simvastatin on the proliferation of vascular smooth muscle cells(VSMCs) induced by serum and growth factor PDGF-BB and the effect of simvastatin on the expression of PTEN,a important regulator of G 1/S cell cycle transition. METHODS: The DNA synthesis was determined by -TdR incorporation, cell cycle was examined with flow cytometry, the protein level of PTEN was measured by Western blot method. RESULTS: (1)Simvastatin inhibited -TdR incorporation in a dose dependent manner. (2) Flow cytometric DNA analysis revealed that simvastatin induced significantly enhancement of G 0/G 1 phase and decrease in S phase VSMCs.(3)Simvastatin increased protein level of PTEN and mevalonate, a metabolite of HMG-COA, reversed the effect of simvastatin on PTEN protein expression. CONCLUSION: Simvastatin may inhibit proliferation of VSMCs and retarded cell cycle in G 0/G 1 phase by increasing PTEN expression through inhibiting synthesis of mevalonate.