1.Determination of Active Components in Whitening and Freckle-removing Cosmetics by High Performance Liquid Chromatography
Ying ZHU ; Yanwei YANG ; Tianhao ZHANG
Journal of Environment and Health 1992;0(04):-
Objective To develop a high performance liquid chromatography(HPLC)method for the determination of active components,sodium ascorbic phosphate,?-arbutin,hydroquinone,niacinamide,brillian-280 and phenol,in the whitening and Freckle-removing cosmetics.Methods Whitening and freckle-removing active components were separated on a C8 column(250 mm?4.6 mm,5 ?m)by using triethanolamine solution(11.15g triethanolamine dissolved in 1 L water,pH=7.7 adjusted with 1.75 ml H3PO4)+methanol=70+30 as the mobile phase at a flow rate of 1.2 ml/min,using diode array detector(DAD)with the detection wavelengh of 273 nm and the column temperature of 25℃.Results The coefficient of variation was less than 4.7% and the recovery rates were 87.3%-112.9%.Conclusion The method introduced in this paper is simple,rapid,accurate and is suitable for the analysis of various cosmetic samples.
2.Observation of curative effect of continuous blood purification treatment in patients with severe viral encephalitis combined with status epilepticus
Hengbin SUN ; Tianhao YU ; Zhou ZHANG
Journal of Clinical Neurology 2016;29(5):363-365
Objective To observe the effect of continuous blood purification ( CBP ) in treatment of patients with severe viral encephalitis (SVE) combined with status epilepticus (SE).Methods Twenty-four SVE patients combined with SE were collected.Of which 15 cases received conventional treatment was control group, while 9 cases received CBP on the basis of conventional therapy was treatment group.The two groups were observed for curative effects.Results Compared with the control group, the remission time of fever, consciousness recovery, status epilepticus and mechanical ventilation were significantly shortened in treatment group ( all P<0.05 ) .The curative effects between the two groups were no significantly different.Conclusion For SVE patients with SE, the CBP treatment combined with conventional treatment can quickly relieve symptoms and improve the prognosis.
3.Survey on the application of Chinese Hypertension Prevention and Treatment Guideline by general practitioners in Shanghai
Xiangjie ZHANG ; Tianhao WANG ; Jie GU ; Yuan ZHANG ; Qian CHEN
Chinese Journal of General Practitioners 2014;13(4):289-292
To investigate the status of application of Chinese Hypertension Prevention and Treatment Guideline (Guideline) by general practitioners (GPs) in Shanghai.A questionnaire survey was conducted among 260 GPs from 8 communities in Xuhui District of Shanghai during March 2011 to December 2012.Among all participants,94.2% knew the Guideline.The overall correct rate was 56.2%; that of epidemiology,diagnosis,treatment,two-way referral and community management of hypertension was 49.2%,54.5%,60.6%,56.9% and 32.3%,respectively.There were significant differences in correct rates of the questionnaire between GPs with different age,gender,education and community (P =0.000,0.035,0.000,0.000).The correct rates of epidemiology and treatment in GP teaching bases (58.5% and 62.6%) were higher than those in non-teaching bases (39.2% and 58.4%) (P =0.002,0.040).But there was no difference in overall correct rate between these two groups (P =0.095).The results indicate that the understanding and application of Hypertension Guideline by General practitioners in community is insufficient.Teaching hospitals should carry out systematic,comprehensive,sustained,targeted training course in order to improve the diagnosis and treatment levels of hypertension for general practitioners in community.
4.Preliminary studies on establishment of indicator system to evaluate basic capacities of trainers of training for community general practitioners in Shanghai
Yuan ZHANG ; Hua YANG ; Tianhao WANG ; Shanzhu ZHU
Chinese Journal of General Practitioners 2011;10(4):232-236
Objective To explore establishment of indicator system to evaluate basic capacities of trainers of training for community general practitioners (GPs) to standardize their capacity building and management.Methods Questionnaire survey was conducted among 190 trainers of training for community health managers and GPs who were involved in community health-care and health-care service management in 12 districts of Shanghai to investigate what basic capacities the trainers should have.Delphi expert consultation method was used to construct an evaluation indicator system.Firstly, an evaluation form was formulated based on the preceding questionnaire.Then, two rounds of expert consultation were carried out with 28 experts specialized in general practice, training for GPs, public health and health management.The last step was to set up an evaluation indicator system based on experts' opinions with statistical analysis.Results The newly-established system consisted of five first-grade indicators including comprehensive performance, capacities and personal willingness, background of education and career, personal potential for professional development, capacity in general practice and capacity in training for GPs, and 57 second-grade indicators.Activity coefficient of the experts was all 100%, authority coefficients of the experts were 0.85,and harmonious coefficient of importance of the evaluation was 0.190 and 0.225 ( all P < 0.01 ),respectively, in two rounds of Delphi consultation.Conclusions The preliminarily established indicator system to evaluate capacities of trainers of training for community GPs in diverse aspects can be used as reference for quality critria in selection of trainers of training for community GPs.
5.Emergency repair method and its effect in treatment of large avulsion injury of lower extremity in elderly patients
Jian LIN ; Jiafu LIN ; Tianhao ZHANG ; Zhijiang WANG ; Yi GU
Chinese Journal of Trauma 2016;32(4):295-299
Objective To evaluate the emergency repair method and its effect for treatment of extensive avulsion injury of the lower extremity in the elderly patients.Methods From May 2008 to February 2015,11 patients aged over 60 years sustaining large avulsion injury (across the knee or ankle joint) of the lower limb in traffic crushes were treated by emergency debridement and one-stage repair with the procedures of autologous skin replantation,arteriovenous anastomosis and vacuum sealing drainage (VSD).Two patients sustained injury to both lower limbs,and nine patients sustained a unilateral injury.Effect of wound repair was evaluated with skin flap survival area.Active and passive motility of the knee and ankle were recorded at postoperative 24 h.Results One patient with multiple fracture and extensive muscular inactivity due to severe crush injury to the lower limbs had poor blood supply after the replantation and was amputated at postoperative 24 h.The remaining ten patients with large skin avulsion showed 90% of the avulsed skin survived after operation.At the follow-up of 3-24 months,the ten patients showed no obvious pigmentation or scar tissue,were satisfied with the function recovery in knee (106°-110° in flexion and 0°-5°in extension) and ankle joint (15°-20°in dorsiflexion and 30°-35° in plantar flexion),and could walk freely,including excellence outcomes in 3 patients and good outcomes in 6 patients.Conclusion The emergency repair methods including autologous skin replantation,arteriovenous anastomosis and VSD combined with one-stage in situ repair can attain satisfactory clinical effect.
6.Digital anatomical analysis of drilling position of the clavicle in coracoclavicular ligament reconstruction
Yu CHEN ; Xuan SONG ; Hua LU ; Tianhao ZHANG ; Bing YAO
Chinese Journal of Tissue Engineering Research 2015;(42):6759-6763
BACKGROUND:Coracoclavicular ligament reconstruction with transclavicular-transcoracoid driling is an effective surgical technique to treat acromioclavicular dislocation. A good driling in the clavicle leads to a perfect bony tunnel and a good surgery. OBJECTIVE: To observe the effects of different driling positions of the clavicle on the location of bony tunnels in coracoclavicular ligament reconstruction. METHODS:Sixty three-dimensional digital models of the clavicle and coracoid process were constructed by Mimics13.0. Virtual transclavicular-transcoracoid bony tunnels were established according to different surgical planes with different driling positions in the clavicle. Parameters of these bony tunnels were measured, and the safety was evaluated. Option 1: The driling was made 30 mm distal to the clavicle, located in the center of the front and rear edges of the clavicle surface. Option 2: The driling was made 40 mm distal to the clavicle, located in the center of the front and rear edges of the clavicle surface. Option 3: The driling was made at the straight line of tapered nodule tip and the midpoint of the base of the coracoid process, located at the rear edge of the clavicle upper surface. RESULTS AND CONCLUSION: Bony tunnels in option 1 were extremely on the inside of the coracoid. Bony tunnels in options 1 and 2 were not in the center of clavicle. Bony tunnels in option 3 were in the center of both clavicle and coracoid. The method of locating the driling position with a certain distance to the distal clavicle leads to different results in man’s and woman’s models. To ensure that the bony tunnel can pass through the center of clavicle and coracoid, it is suggested to dril at the straight line of tapered nodule tip and the midpoint of the base of the coracoid process and nearby the rear edge of the clavicle upper surface.
7.Application of 360 degree evaluation in competency assessment of community general practice trainers
Tianhao WANG ; Zhigang PAN ; Jie GU ; Yuan ZHANG ; Qian CHEN
Chinese Journal of General Practitioners 2014;13(7):539-542
Objective To apply 360 degree evaluation in competence assessment of community general practice trainers.Methods The 360 degree evaluation questionnaire was designed by authors and the evaluation was applied to assess the personal comprehensive quality,competence in general practice and teaching of 16 general practice trainers in Fenglin Community Health Service Center of Shanghai Xuhui District.Results The scores of personal comprehensive quality,competency in general practice and teaching were 7.73 ± 0.73,6.91 ± 0.91 and 6.44 ± 1.38,respectively.The total scores from different evaluators were 6.93 ± 0.12 for peers,6.68 ± 0.74 for hospital executives,8.17 ± 0.12 for nurses and 6.43 ± 0.89 from self evaluation (F =27.91,P =0.000).Conclusion The variance between different evaluators in 360 degree evaluation can avoid bias of single one.The results of 360 degree evaluation show that the teaching ability of community general practice trainer is relatively low,suggesting the training of teaching ability should be strengthened for these trainers.
8.Imaging Diagnosis of Atypical Meningioma
Tianhao YANG ; Shimin CUI ; Leili ZHANG ; Meili LIU ; Song JIN
Journal of Practical Radiology 2001;0(05):-
Objective To analyse imaging features of atypical meningioma.Methods There were 17 cases with atypical meningiomas proved by pathology,7 cases were male,10 cases were female,ranged in age from 34~69 years.17 cases all examined with CT,and 10 cases with CT enhanced scanning;12 cases examined with MRI and 8 cases with MR enhanced scanning,5 cases examined with DSA.Results The major imaging features of atypical meningioma included:the borders of tumors were mostly irregular,nonhomogeneous density or signal on plain CT and MRI,nonhomogeneous enhancement on enhanced CT and MRI.Cystic and necrotic changing and the invasion of cranial bone and adjacent structure could be seen.5 cases with dural tail sign on MRI,3 of them,this sign was short,thick and irregular.Heavy staining was showed on DSA.Conclusion Atypical meningiomas are of some clinical and imaging features.
9.Effect of Saponins Ⅰ Extracted from Paris Polyphylla on Coronary Artery Endothelial Cell Proliferation
Weiwei WANG ; Xuesong WU ; Hongmiao ZHANG ; Wen ZHANG ; Ying ZHANG ; Hong YE ; Tianhao BAO
Journal of Kunming Medical University 2016;37(11):37-40
Objective To explore the effect of ParidissaponinⅠ (PSⅠ) on the proliferation of coronary artery endothelial cells (CAECs).Methods CAECs were cultured with PSⅠ.CAEC growth rate was calculated by using blood cell counting plate.Cell viability was measured by MTT.The expressions of cadherin and caspase3 mRNA were detected by RT-PCR.Results PSⅠ slowed down growth rate of CAECs,reduced cell viability of CAECs,decreased the expression of cadherin mRNA and increased the expression of caspase3 mRNA in CAECs.Conclusion PSⅠ inhibits the proliferation of CAECs and induces CAECs apoptosis.
10.Legacy posterior stabilized prosthesis for valgus knee deformity:midterm follow up
Jiang GUO ; Zhongjie ZHANG ; Bo XIA ; Caidong ZHANG ; Zhongwei FAN ; Tianhao WU ; Hongbin YANG ; Meiyun TAN
Chinese Journal of Tissue Engineering Research 2015;(31):4927-4932
BACKGROUND:Legacy posterior stabilized prosthesis has advantages in theoretic design,in vitro kinematics and abrasion, but it remains unclear whether its clinical outcomes for vaglus knee deformity are better than Legacy constrained condylar knee prosthesis. OBJECTIVE:To explore the midterm folow-up effect of Legacy posterior stabilized prosthesis in total knee arthroplasty in patients with valgus knee deformity. METHODS: From February 2006 to November 2013 in Department of Bone and Joint Surgery, Affiliated Hospital of Luzhou Medical Colege, total knee arthroplasty was used to treat valgus knee deformity in 33 cases (35 knees). Parapatelar medial approach was used. Precise osteotomy was utilized to correct limb alignment. Lateral soft tissue received selective release. Finaly, an equal type of Legacy posterior stabilized prosthesis (Zimmer, USA) was implanted and fixed with antibiotic bone cement. The differences in hospital for special surgery knee score, range of motion of knee, femoral tibial angle, and maximum flexion and extension angle, as wel as X-ray film results were compared and analyzed before and after replacement. The complications including deep vein thrombosis, peri-prosthetic infection, patelar clicking, unstable knee, and common peroneal nerve injury were recorded after surgery. RESULTS AND CONCLUSION: Al patients were folowed up for 24-50 months. The incision was healed in one-stage. No complications such as peri-prosthetic infection appeared. Three patients suffered from common peroneal nerve palsy, which was cured at half a year after surgery by expectant treatment such as trophic nerve. Two cases suffered from knee instability after replacement, which was improved at 1 month after external fixation with a brace. One case experienced deep vein thrombosis in the lower extremity, which was improved after treatment with low molecular weight heparin anticoagulation. During final folow-up, hospital for special surgery knee score increased from (51.85±4.15) preoperatively to (85.77±2.50) postoperatively (P < 0.01). There were excelent in 20 knees, good in 11 knees, with an excelent and good rate of 89%. X-ray films showed that hindlimb alignment was apparently corrected, prosthetic position was good, no loosening occurred. These data indicate that total knee arthroplasty, using parapatelar medial approach, obtained good correction outcomes through the accurate amputation to correct hindlimb alignment and selective release of the soft tissue with Legacy posterior stabilized prosthesis in the treatment of valgus knee deformity.