The clinical probation is an important part of medical education, which is also a bridge from theoretical learning to clinic practice. To improve the quality of clinical probation teaching of hematology department, multiple teaching activities have been carried out, including full preparation before teaching, creating better medical environment, arousing enthusiasm, tralning the physician-patient communication ability and strengthening operating skill of the students. Good study effect has been achieved.

Objective:To evaluate the clinical efficacy and safety of Tongqiao Biyan granules in the treatment of sinusitis. Meth-ods:Totally 240 cases of sinusitis were randomly divided into two groups, each group had 120 cases. The patients in observation group were treated with 1 bag of Tongqiao Biyuan granules, 3 times a day, while the patients in control group were treated with busesonide nasal spray 100 μg each side nasal cavity, once a day. After 3 weeks,curative effect and adverse drug reaction of the two groups were observed. Results:After the treatment, nasal congestion, runny nose, headache, cough and other signs and symptoms were improved more significantly in the observation group than those in the control group (P<0. 05), the total effective rate of the observation group was 92. 5%, while that of the control group was 79. 2%, the difference was significant (P<0. 05). During the treatment, the two groups showed no obvous adverse drug reactions. Conclusion: The effect of Tongqiao Biyuan granules in the treatment of sinusitis is significant with no obvious adverse drug reactions, which should be recommended to use in clinic.

Background Proliferative vitreoretinopathy (PVR) is a a common cause of anatomic failure in retinal detachment surgery.Proteomics is the critical method to investigate the different proteins. Objective This study was to search for related vitreous proteins in rhegmatogenous retinal detachment patients with proliferative vitreoretinopathy (PVR)and screen for the related protein expression in the vitreous with PVR. Methods Vitreous samples were obtained from 8 moderate PVR (grade B)eyes and 8 severe PVR(grade C or D)eyes during pars plana vitrectomy (PPV)for the proteomics analysis by two-dimensional gel electrophoresis coupled with mass spectrometry.Normal vitreous from 8 healthy donor eyes served as control.First dimension isoelectric focusing (IEF) was performed with the Pharmacia IPGphor in solvent B using 18 cm non-linear pH 3-10 immobilized pH gradient (IPG)strips.IPG strips were rehydrated with sample,and then IEF was performed.The second dimension 12%sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis (PAGE) was performed after the IPG strips were equilibrated.After silver staining,the gels were analyzed by the 2-DE gel analysis software.The matched spots were excised and tryptica digested in-gel.The peptides were analyzed by MALDI-TOF-MS and the MS/MS spectral were searched against the human protein databases using MASCOT.This study process complied with the Declaration of Helsinki.Wfitten informed consent was obtained from each patient prior to this trial. Results In the current study,a total of 47,184 and 336 protein spots were detected from the normal donor eyes,moderate PVR eyes and severe PVR eyes,respectively,by 2-DE gels.Among 13 protein spots with significant differences in the 3 groups,7 types of proteins were successfully identified.The results indicated that Enolase 2 was a specific protein for normal donor vitreous.whereas transthyretin monomer and retinol-binding protein(RBP) chain B were distinct proteins found in severe PVR vitreous.and prostaglandin D synthase and RBP3 precursor were common proteins with up-regulated expression in vitreous samples with moderate PVR,but down-regulated levels in vitreous samples with severe PVR.The levels of albumin and transferrin in vitreous showed dynamic elevation with the enhancement of severity of PVR.Conclusion The changes in the vitreous proteome imply that some types of vitreous proteins degrade and some common serum proteins are expressed in the vitreous body with PVR,which indicated the disruption of the blood retinal barrier in the pathogenesis of PVR.

Primary biliary cirrhosis (PBC) is considered to be an autoimmune liver disease. Its etiology is unknown. Pathogenesis of PBC is associated with many aspects such as genetic factors, environmental factors, independent activity of target antigen, T-cell autoreactive immune responses and so on. Recently, new materials that involved in the morbidity of PBC have been identified constantly. Antimitochondrial antibodies (AMA) are characteristic of PBC. In particular, AMA-M2 is highly positive for the serological diagnosis mark of PBC. At present, treatment still cannot be for the etiology of PBC. Symptomatic treatment and support treatment are main measures. Ursodeoxycholic acid (UDCA)is the only one recognized medication with specific effect on the PBC. At present, the liver transplant can increase the survival rate and extend their survival time for end-stage of patients with PBC. This article emphasis on the progress of pathogenesis and treatment of the PBC are reviewed to explore research.

Objective To study the efficacy and adverse reactions of the treatment on different types of infantile hemangiomas (IH) with different doses of propranolol .Methods One hundred and fifty cases of IH without contraindications were randomly treated with different doses of propranolol (low dose group:1 mg?kg -1 ?d-1 ;high dose group:2 mg?kg -1 ?d-1 ) under ECG monitoring inferior half an hour to breastfeeding taking ,and stay in hospital for observation for 6 to 24 hours after the treatment . The patients returned to the hospital for review every month(ECG and blood RT ;lung function in necessary) .Results The curative effect is better on strawberry IH than that on flat IH ,also better on deeply IH than that on superficial IH .The adverse reactions oc‐curred relatively slight in the low dose group and there was no significantly statistical differences on the treatment effects between the both groups(P>0 .05) .Conclusion It is safe and effective to treat IH with propranolol .

Amniotic Fluid ; cytology ; Cardiomyopathies ; therapy ; Humans ; Stem Cells ; cytology

BACKGROUND:Apexification and mineral trioxide aggregate apexification are mainly used to treat pulpal necrosis in the immature permanent tooth, but neither methods can increase the root canal length and thickness. How to promote the root development of the affected teeth based on patients' potential? Pulp regeneration and revascularization has provided a new direction for clinical treatment, but successful cases are rarely reported. OBJECTIVE: To testify the clinical effectiveness of pulp regeneration and revascularization in the treatment of pulpal necrosis, root development stagnation in the permanent teeth caused by caries, odontodysplasia and injury, thus providing reference for clinical application. METHODS:We propose to conduct a prospective, single-center, randomized, controlled, clinical trial at Stomatological Hospital Affiliated to Xi'an Jiaotong University, Shaanxi Province, China. Eighty-two patients (82 affected teeth) with pulpal necrosis or periapical periodontitis in the immature permanent tooth from December 2013 to December 2016 were selected, and equally randomized into trial and control groups, followed by treated with pulp regeneration and revascularization, and apexification, respectively. The clinical examinations and X-ray radiology were used to evaluate the clinical effectiveness at 3, 6, 9, 12 and 18 months, and the pulp vitality and rot development were observed. The study protocol has been approved by the Ethics Committee of Stomatological Hospital Affiliated to Xi'an Jiaotong University of China (approval number: JDKY015-02). All protocols were performed in accordance with the Ethical Principles for Medical Research Involving Human Subjects in theDeclaration of Helsinki. Written informed consent was provided by each patient and their family members after they indicated that they fully understood the treatment plan. RESULTS AND CONCLUSION: Up to March 25, 2017, all patients have been followed up for 6.5-18 months. The treatment success rate in the trial and control groups was 97.6% and 82.9%, respectively, and the intergroup difference was significant (P < 0.05). The positive rate of pulp vitality in the trial and control groups was 24.4% and 0, respectively, which showed significant difference (P < 0.05). The rate of root continuous development showed significant difference between trial and control groups (63.4%vs. 29.3%,P < 0.05). To conclude, compared with apexification, pulp regeneration and revascularization exhibits high success rate in the treatment of pulpal necrosis in the immature permanent tooth, and can contribute to root development.

Objective To observe the effect of Prodifen ( Skf525A) on rat thoracic aorta artery stenosis after bal-loon angioplasty and to discuss the relationship between endogenous Cytochrome P 450/epoxyeicosatrienoic acids (CYP2J2/EETs) system and artery stenosis after vascular injury .Methods Totally 24 Wistar rats were randomly divided into four groups assigned to the following treatments:sham group, I group ( treated by ballon angioplasty for 15 d).Using sham+Skf group (administrated with Skf525A), I+Skf group (administrated with Skf525A, then treated by ballon angioplasty for 15 d).Relative luminal area (RLA) and the intimal proliferation index (IPI) were observed by HE staining;The expression of Cytochrome P450 epoxygenase 2J3 (CYP2J3) mRNA was deter-mined by semi-quatative reverse transcription polymerase chain reaction ( RT-PCR ); the level of 11 ,12-EET was detected by high pressure liquid chromatography ( HPLC) .Results Compared with sham group , RLA significantly decreased , IPI significantly increased , CYP2 J3 mRNA expression and the content of 11 ,12-EET all significantly increased in I group ( P<0.01 ) .Compared with I group , Skf525 A treatment significantly decreased RLA , in-creased IPI, and decreased CYP2J3 mRNA expression and the content of 11,12-EET (P<0.01).Conclusions CYP2J3/EETs system can inhibit stenosis after vascular injury .

Objective To investigate the relationships of tone burst -ABR Thresholds and the pure -tone audiograms in normal hearing adults .Methods The response thresholds of Tone burst -ABR and the pure -tone audiogram were recorded from 34 adult(68 ears) at 0 .5 ,1 .0 ,2 .0 ,and 4 .0 kHz .The results were statistically ana-lyzed .The correlation of the response thresholds of tone burst -ABR and the pure-tone audiogram were studied . Results At 0 .5 ,1 .0 ,2 .0 ,4 .0 kHz ,the averages of the response thresholds of tone burst -ABR were 27 .43 ± 3 .29 ,25 .98 ± 2 .76 ,16 .78 ± 2 .37 ,and 12 .42 ± 2 .64 dB nHL ,respectively .The averages of the pure -tone audio-gram were 12 .23 ± 3 .99 ,11 .82 ± 2 .56 ,9 .58 ± 3 .23 ,and 9 .92 ± 2 .59 dB nHL ,respectively .The differences between the response thresholds of tone burst -ABR and the pure-tone audiogram were 12 .13 ± 4 .51 ,11 .43 ± 3 .66 ,7 .61 ± 2 .43 ,and 7 .17 ± 1 .32 dB ,respectively .At 0 .5 ,1 .0 ,2 .0 ,and 4 .0 kHz ,Pearson correlation coefficients were 0 .69 ,0 .79 ,0 .84 ,0 .89 ,respectively .Conclusion The tone burst -ABR and the pure -tone audiogram thresholds were a highly correlated with each other ,especially at 2 .0 kHz and 4 .0 kHz .Tone burst -ABR has the frequency specificity ,which can response the hearing level better .

Objective To evatluate the effect of dexmedetomidine on intraoperative wake-up test during cerebral functional area operation performed under combined iv propofol-remifentanil anesthesia.Methods Twenty-seven ASA Ⅰ or Ⅱ patients (both sexes) aged 17-43 yr with a body mass index of 20-24 kg/m2 undergoing op-eration on cerebral functional area during which intraoperative wake-up test was performed were randomly divided into control group (group C,n =13) and dexmedetomidine group (group D,n =14).Anesthesia was induced with midazolam,sufentanil,etomidate and rocuronium and maintained with TCl of propofol (Cp =3-5 μg/ml) and remifentanil (Ce =2-6 ng/ml).BIS value was maintained at 55-65.In group D after dura of brain was opened,a loading dose of dexmedetomidine 0.3 μg/kg was administered iv over 15 min followed by continuous iv infusion at 0.2 μg· kg-1 · h-1 while TCI of propofol and remifentanil were suspended.In group C after opening of dura,Cp of propofol TCI was reduced to 0.5 μg/ml and Ce of remifentanil to 0.5 ng/ml.The wake-up time and development of hypertension,tachycardia,headache,dysphoria,delirium and awareness were recorded.Results All patients were successfully awakened.There was no significant difference in wake-up time between the 2 groups (P ＞0.05).The incidences of hypertension,tachycardia,headache and awareness were significantly lower in group D than in group C (P ＜ 0.05).Conclusion Dexmedetomidine does not affect intraoperative wake-up time during operation on cerebral functional area performed under iv propofol-remifentanil anesthesia,but can significantly reduce the incidence of adverse effects.