BACKGROUND:Currently, buccal tubes are mostly preferred rather than molar bands to control posterior tooth movement. However, the buccal tube is difficult to bind the molar because of its position. Meanwhile, due to the relatively large masticatory forces on the posterior tooth, the buccal tube is easier to drop off. OBJECTIVE: To investigate the clinical effects of two kinds of adhesives bonding the buccal tube. METHODS:Sixty orthodontic patients were selected randomly. The right side of the upper and lower first molars of each patient was bonded by 3M TransbondTM light-cured resin binder, and the left side of the upper and lower first molar of each patient was bonded by 3M chemical curing adhesive. Cases of buccal tube shedding were recorded within 4 months. Meanwhile, 3M TransbondTM RESULTS AND CONCLUSION: The dropout rate of 3M Transbond light-cured resin binder and 3M chemical curing adhesive were used to bond the isolated human first molar, respectively. The normal oral environment and temperature were stimulated, and the shear bonding strength was measured after measured after 10 000 thermal cycles. TM light-cured resin binder and 3M chemical curing adhesive groups was 10.80% and 24.10% respectively, and there was a significant difference (P < 0.05). In vitro experiments confirmed that two kinds of adhesives could meet the clinical requirements, but 3M TransbondTM light-cured resin binder was better than 3M chemical curing adhesive. These findings indicate that compared with 3M chemical curing adhesive, 3M TransbondTM light-cured resin binder is more suitable for the binding between the molar and buccal tubes.

Objective To identify candidate regions of sporadic pheochromacytoma (PCC).Methods Totally 42 patients who were clinically diagnosed as sporadic PCC from 2011-9 to 2013-5 in PUMCH were enrolled .To extract whole genome DNA from their tumors as well as peripheral blood leukocytes and to exclude inherited cases by San-ger sequence mutation .Within 14 verified cases of sporadic PCC , we applyed single nucleotide polymorphism ( SNP) chip to detect whole genome DNA copy number variations ( CNV) and loss of heterozygosity ( LOH) to ini-tiallylocatethehotregions.FinallyapplyQ-PCRtoconfirmthehotregionsinleftcases.Results 38caseswere identified as sporadic PCC , and 4 as inherited cases .CNV were found in 14/14 tumors, of which deletions were more common.Missing regions occurred in 1p,3q,17p,22q,11p.On the other hand, of the 3 inherited cases, de-letion was also detected.The loss of parts of arm 1p is the most common, including chr1:74 957 006 ~86 132 879 , chr1:58 096 424~67 700 471 , and chr1:98 902 091~107 622 430 .The result of Q-PCR confirmed the above-mentioned three regions , and the three segments are final candidate regions .Conclusions Partially de-letion of 1p in most cases is the most striking phenomenon , we believe that the deletion of 1p may occur with PCC development , and there may be some tumor suppressor gene ( s) within these areas .

Objective To discuss the value of unilateral adrenalectomy(UA)for the treatment of refractory or recurrent Cushing disease(RRCD).Methods From January 2003 to July 2011,10 patients with RRCD underwent UA.The preoperative symptoms,preoperative treatments,intra-and post-operative complications and follow-up in patients were reviewed.All the 10 patients presented with hypercortisolemia symptoms.Transsphenoidal surgery had been performed in 9 patients as initial therapy.Of the 10 patients,8 received radiation therapy before adrenalectomy.All the 10 cases accepted a right UA.Results No perioperative complications occurred.The 10 patients were followed up for 1-8 years.Eight patients with radiation therapy before adrenalectomy got remission.Two bilateral adrenalectomies were eventually performed because the symptoms could not be controlled.Of the 8 patients who got remission,none of them developed Nelson syndrome and none need lifelong mineralocorticoid and glucocorticoid replacement therapy.Conclusions UA could be an option for RRCD.For patients with RRCD receiving radiation therapy,UA may effectively relief hypercortisolemia.Compared with bilateral adrenalectomies,UA could avert permanent adrenal insufficiency,which leads to a lifelong glucocorticoid and mineralocorticoid replacement therapies,and a life-threatening adrenal crisis.

Objective To establish a method for determining the content of Danshensu and Protocatechuic Aldehyde in Huoxue capsule. Methods The HPLC method was adopted for the determination. Danshensu and Protocatechuic Aldehyde were used as the standard. Detection wave length was set at 280 nm,the mobile phase consisted of methanol-0.5 % HAc (30∶70). Results The linear range of Danshensu was 0.421～3.364 ?g and Protocatechuic Aldehyde was 0.212～1.699 ?g. The average recovery rate of Danshensu was 100.05% with RSD of 3.07% and Protocatechuic Aldehyde was 99.39% with RSD of 1.62%. Conclusion This method is accurate,specific and reliable for the quality control of Huoxue capsule.

This paper analyses the problems of information service to foreign students in the library of Dali University and put forwards the proper solutions.

OBJECTIVE To strengthen the hospital supply Division standardized management and prevent the pathogenic microorganism dissemination effectively and safeguard the human health.METHODS Strengthening the vocational study,improving personnel′s knowledge level,formulating control system,strengthening detail and flow management and adopting the effective monitoring method all were the main measures.RESULTS The results were to guarantee the aseptic material quality,and prevent the occurreance of hospital Ainfection.CONCLUSIONS The scientific and effective management measures make our supply division a good quality management institution,with the programming the materiol processing and the standardizing the disinfection and antisepsis.

OBJECTIVE To investigate the infection of Mycoplasma and drug resistance in the patients of nongonococcal urethritis(NGU)in the local area.METHODS Totally 414 specimens in the patients of NGU were collected,cultured and tested for drug sensitvity.RESULTS From them there were 284 patients who had Mycoplasma(68.60%).The simple infection of Ureaplasma urealyticum(Uu)was 90 cases(21.74%) and that of Mycoplasma hominis(Mh) was 52 cases(12.56%).The mixed was 142 cases(34.30%).The result of drug sensitivity showed that sensitivity of Mycoplasma to minocycline(Minocin) was the highest,then was to doxycycline.Ciprofloxacin was with the highest drug resistance,then were sparfloxacin and erythromycin.CONCLUSIONS The infection rate of Mycoplasma in the patients of NGU is in a rising tendency;Mycoplasma are severely resistant to ciprofloxacin,sparfloxacin,and erythromycin,and have multi-resistance.It is important to culture and test the drug sensitivity of Mycoplasma.To control the Mycoplasma infection and supervision management of antibiotics is a urged and important task for us.

Diabetic retinopathy ( DR ) is one of the most serious microvascular complications of diabetes. It also is a world's major causes of blind eye diseases. Although the injection of anti - vascular endothelial growth factor intraocular drug is becoming a hotspot of current research. Pan retinal photocoagulation (PRP) remains the effective and economical treatment for DR. As a destructive treatment, PRP will inevitably cause some changes on the normal morphology and function of the retinal and cornea. Currently, with the development of the optical coherence tomography, confocal microscopy and other auxiliary examination, we have more accurate and objective research to better understand the laser-neural tissue interaction. This may help us to protect the patient's visual function more efficiently.

ObjectiveTo investigate the effect of psychological intervention on quality of life (QOL) of patients with mammary carcinoma.Methods64 patients with mammary carcinoma were divided into intervention group (n=36) and control group (n=28), and psychological status and QOL of patients of two groups were analyzed after treatment.ResultsThe psychological status and QOL of intervention group was better than that of control group (P<0.05～0.001).ConclusionThe psychological intervention in full stage being in hospital can improve QOL of patients with mammary carcinoma, and it is clinically significant to improve cure rate and survival rate of patients.