Objective: To study the difference in tooth profile among Chinese,Caucasian and Japanese with normal occlusion.Methods: The data of the measurments of Chinese,Caucasian and Japanese with normal occlusion were collected from published studies.Crown angulation,crown inclination and crown convex were used in the comparation among the peoples. Results: Tooth profile in Chinese was significantly different from that of Caucasian but was similar to that of Japanese. Conclusion: The orthodontic appliances should be modified when we use the straight wire appliances that is suitable for Caucasian and Japanese.

Objective To observe the effect of Lovastatin on carotid atherosclerotic plaque(CAP),levels of blood lipid and serum C-reactive protein(CRP) in patients with cerebral infarction(CI).Methods 120 CI patients with CAP were randomly divided into Lovastatin group and control group.At the basic of low fit diet for the two groups,Lovastatin was taken with 20 mg once a day for 6 months in Lovastatin group.Then,the changes of paque score,the levels of CRP and blood-lipid were observed 8 weeks and 6 months after treatment.Results (1)6 months later,the plaque score(4.20?3.77) in the Lovastatin group was significantly lower than pro-treatment(4.77?2.31)and the control group(6.86?1.89) (all P

Objective To analysis the effect of using comprehensive rehabilitation treatment for osteoporotic bulging disc combine diabetes otients.Methods Ninety cases osteoporotic bulging disc combine diabetes patients, who treated in Guanganmen Hospital of Chinese Academy of Traditional Chinese Medicine from January 2011 to January 2011, were randomly divided them into observation group and control group, 45 cases in each group, control group was given conventional treatment, the observation group was given comprehensive rehabilitation treatment, compare visual analogue scale (VAS) score and Oswetry functional disability index (ODI) changes in two groups after treatment, and compared the efficient of treatment.Results VAS scores after treatment for one course and 2 courses in observation group were respectively (2.05± 1.31) and (1.26± 1.03) points,ODI score was respectively (26.37±5.10) and (21.82±4.57) points, VAS score in the control group was (5.85±1.38) and (3.29±1.94) points,ODI score was respectively (37.29±6.32) and (28.33±5.30), all obviously improving than before treatment, but compared with control group, the observation group improved more apparent,the difference between groups was statistically significant(P＜0.05).Treatment effective rate in observation group was 95.56％ (43/45), the control group was 80.00％ (36/45), the difference between groups was statistically significant(x2=5.075 ,P＜0.05).Conclusion Comprehensive rehabilitation therapy applied in treatment for osteoporotic bulging disc combine diabetes patients can obviously improve the patient's pain symptomsand and the lumbar spine, obtain better treatment effect, worthy of clinical popularization and applications.

Objective To investigate the effects of different doses of diphtheria toxin on cochlear structure and auditory function of adult wildtype mice.Methods The auditory-mature wild type C57BL/6J mice 4 weeks old were randomly devided into 50 ng/g group, 100 ng/g group and control group.C57BL/6J mice in the 50 ng/g or 100 ng/g group were injected 50 ng/g or 100 ng/g diphtheria toxin intraperitoneally for one time, respectively, and the control mice were injected equal volume of normal saline for one time.Then we investigated the ABR threshold change and morphological change of inner and outer hair cell and spiral ganglion neuron 7 days after the injection.Results At 7 day post diphtheria toxin injection compared with those of in control group, in the 50 ng/g group, there was no threshold elevation across frequencies(8 kHz ABR threshold was 20.0±3.78 and 20.83±2.04 dB SPL for 50 ng/g and control respectively), and no loss of inner and outer hair cells (for both groups, the HC loss rates were 0.3%~1%) or SGN (the SGN density was 39.45±3.65, 41.03±3.73/105 μm2, in 50 ng/g and control, respectively).However, the 100 ng/g group, compared with those of in control group, the ABR threshold (8 kHz ABR threshold was 63.0±4.47 dB SPL, respectively)was significantly elevated across each frequency(t=19.62,P<0.001), and there was significant loss of outer hair cell (the loss rate of IHC and OHC was 0.5%±0.1%, 10.7%±0.3%, respectively), which was 10% loss in the apical, middle and basal turn(t=42.219,P<0.001).And the loss of spiral ganglion neuron (the SGN density was 25.55±3.66/105 μm2) was 38%, which was significantly different from the control(t=10.985,P<0.001).Conclusion High dose injection of diphtheria toxin can cause loss of outer hair cell and spiral ganglion neuron in wild type auditory-mature C57BL/6J mice.

Retinitis pigmentosa (RP) is a hereditary disease characterized by the progressive loss of photoreceptor cells. Disease pathology primarily affects rod photoreceptor cells first but light-insensitive cone photoreceptor bodies can survivor longer. Delivered by adeno-associated viral vector or lentiviral vector, expression of microbial-type rhodopsin, channelrhodopsin-2 or archaebacterial halorhodopsin in the survived retinal cells can substitute for the native phototransduction cascade in mouse models of retinitis pigmentosa. It can also restore light sensitivity and activate all retinal cone pathways and drive sophisticated retinal circuit functions. Thus, expression of channelrhodopsins or halorhodopsin might be a potential strategy for the restoration vision of patients with RP.

BACKGROUND:The patients with porcelain-fused-to-metal crowns who do examination of magnetic resonance imaging (MRI) can cause artifacts. In recent years, researching for MRI artifacts of different porcelain-fused-to-metal materials has been some progress, but there are less quantitatively reports on the MRI artifacts of different porcelain-fused-to-metal materials.
OBJECTIVE:To evaluate the artifact sizes shown on fast spin-echo T 2-weighted sequence caused by different kinds of porcelain-fused-to-metal crowns.
METHODS:Forty-eight lower right first molar crown patients who had MRI examination in MRI room were enrol ed. The patients were divided into nickel-chromium al oy group, cobalt-chromium al oy group and titanium crown group. Al patients were examined with fast spin-echo T 2-weighted sequences by means of 1.5 T MRI apparatus. MRI artifacts areas of same sequence on the MRI images of different porcelain-fused-to-metal materials were analyzed with variance test.
RESULTS AND CONCLUSION:Forty-five cases appearing to have high signal samples with clearly curved boundary zone that can be measured were selected, 15 cases for each material. Different artifact sizes were produced on the same sequence of different porcelain-fused-to-metal materials, which were (321.67±33.29) mm in the nickel-chromium al oy group, (263.53±34.95) mm2 in the cobalt-chromium al oy group, and (143.67±31.13) mm2 in the titanium crown group. There were significant differences between groups (P<0.05). The artifact size is smal est for the titanium crown and largest for the nickel-chromium al oy crown.

Objective To learn the clinicians'attitude towards the “Drug and Medical Service Separation” reform in Beijing.Methods A number of pilot hospitals of “Drug and Medical Service Separation” reform in Beijing were pinpointed,for a random questionnaires survey among 800 clinicians,to learn their awareness,evaluation and attitudes to the reform.Results The clinicians were found with good awareness and understanding of the reform,with an awareness rate of 99.5％ ; 72.0％ of them hold that the pricing of “medical service charge” of the reform as reasonable; most of them believe that the reform plays a positive role in relieving the difficulties of seeing doctors and affordability of medical treatment; their approval rate for the reform pilot project is 97.3％; their satisfaction for the reform implementation is 90.8％,and their support for full implementation of the reform is 94.0％.Conclusion The clinicians from those pilot hospitals are sufficiently aware of and understand this policy,and are supportive of the pilot with useful suggestions.The recommended strengthened publicity and training,higher medical service charges,better pay for medical workers,improved incentive mechanism and evaluation mechanism,and better clinicians' satisfaction.

Objectives To explore the perceived stigma among family members of people with schizophrenia and to identify the influential factors related to perceived stigma in socio-demographic characters of family members and patient characters.Methods Total 127 family members of people with schizophrenia in a psychiatric hospital in Beijing were surveyed by the Perceived Devaluation-Discrimination Scale developed by Link.Results The mean score of the perceived devaluation-discrimination scale is 2.60±0.44.It was significantly higher than the 2.5 midpoint(t=2.53,P<0.05).Family member's perceived stigma was significantly different between different groups of residence area,education level,occupation and family income (P<0.05).Perceived stigma were not affected by patient characters (P>0.05).Family members'education level was the influencing factors of stigma,and the R~2 Square is 0.213.Conclusions The family members of people with schizophrenia suffered from high stigma.Education level of family member may be one of the influential factors.

Chinese herbal pieces are a key factor to protecting the quality of the clinical efficacy of traditional Chinese medicine (TCM), and it is one of the basic elements of ensuring the quality of TCM and people's usage safety. However, Chinese herbal pieces has massive problem such as adulteration and counterfeit, dyeing and weighting, pesticide residues, heavy metals in excess of the standards, and all the issues are repeated excessive in the clinic treatment. These issues impacted sound development of production, management and use of TCM, but also brings common people hidden trouble for the clinical safety of medication. Protect and improve the quality of the Chinese herbal pieces demand that continue improve quality system, in-depth scientific research, and strengthen self-discipline and other factors. So it is fundamentally to ensure good quality of Chinese herbal pieces with the color, taste and shape by systematic supervision to it from the source, production, management and research, with strengthened implementation and en- forcement of the "3G".
Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; adverse effects ; Medicine, Chinese Traditional ; adverse effects ; Total Quality Management ; methods

Anemia, Hemolytic, Autoimmune ; etiology ; Female ; Humans ; Infant, Newborn ; Male ; Pregnancy ; Pregnancy Complications ; Sjogren's Syndrome ; complications