1.Comparative analysis among trypsinogen-Ⅱ p-amylase and α-amylase for the diagnosis of acute pancreatitis
Chinese Journal of Primary Medicine and Pharmacy 2010;17(21):2957-2958
Objective To discuss the clinic at diagnosis value of trypsinogen-Ⅰ in acute pancreatltis(AP) by the means of comparative analysis among trypsinogen-Ⅱ.p-amylase,and uroamylase.Methods Trypsinogen-1 by immunostratographie analysis,p-Amylase by immuno-suppression and a-Amylase by enzyme coupling reaction.In 69 samples with pancreatitis were measured.Results Trypsinogen-Ⅱ in 65 samplest p-Amylase in 63 samples and Amylase in 59 samples were positive.The diagnositic sensitivity of trypsinogen-Ⅱ,p-Amylase,Amylase were 94.2%,91.3% and 85.5%,respectively The diagnositic specificity were 90.3%,87.1% and 74.2% respectively.Conclusion Trypsinogen-Ⅱ is better index for the detection of acute panereatitis.
2.Recent advances in the preparation progress of protein/peptide drug loaded PLA/PLGA microspheres
Acta Pharmaceutica Sinica 2007;42(1):1-7
Sustained release drug delivery from microparticles is an excellent alternative for daily protein/peptide drug administration protocol. Poly(lactic acid) (PLA) and poly(lactic-co-glycolic acid) (PLGA) are the most commonly used polymer carriers in the development of protein/peptide microspheres. Basically there are three preparation methods for PLA/PLGA microspheres: the solvent extraction/evaporation based multiple emulsion (W/O/W emulsion) method, the phase separation method and the spray drying method. The stability of the protein/pipetide loaded, encapsulation efficiency, and the burst effect of the microspheres are key problems usually met in the preparation of microspheres. In this review the preparation techniques and progress in the development of protein/pipetide microspheres which aimed to stabilize protein/peptide structural integrity, keep the bioactivity of drugs, increase the encapsulation efficiency and improve the release profile were summarized and evaluated.
3.A comparison of EEG bio-feedback and methylphenidate in treating attention deficit/hyperactivity disorder
Fenghua ZHANG ; Jinsong ZHANG ; Xiaoming SHEN
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(04):-
Objective To study the effectiveness of EEG bio-feedback in ameliorating the attention of children with attention deficit/hyperactivity disorder (ADHD) compared to a control group receiving methylphenidate treatment; and to explore the effectiveness of EEG bio-feedback in treating ADHD children refractory to methylphenidate. Methods Forty-four ADHD children were randomly assigned to an EEG bio-feedback group or a methylphenidate group. An additional twenty ADHD children refractory to methylphenidate were referred to as EEG bio-feedback group B. The two EEG bio-feedback groups received training in enhancing their beta activity and suppressing their theta activity. The methylphenidate group were treated with methylphenidate for 3 months. The subjects′ attention stability was measured using a number cancellation test. Their attention allocation and attention shift were tested using a neuropsychological behavioral test instrument, including trail-making test. All groups received re-tests during treatment, post-treatment and during a 6 month follow-up. Results During treatment, the cancellation speed of children in the EEG bio-feedback group A was slower than that of children in the MPH group. At the end of the treatment, there were no significant differences in speed between the two groups. Six months to one year after treatment the cancellation speed of the EEG bio-feedback group A was significantly faster than that of the MPH group. The EEG bio-feedback group B demonstrated significant increases in their cancellation speeds after 20 treatments and during a 1 year follow-up. During treatment and post-treatment, Q scores were significantly lower in EEG bio-feedback group A than in the methylphenidate group. Six months to one year after treatment the Q scores were significantly higher in EEG bio-feedback group A than in the methylphenidate group. There was no significant increase in the Q scores in EEG bio-feedback group B during treatment, but they increased significantly post-treatment. There was no significant difference in the trail-making time between EEG bio-feedback group A and the methylphenidate group during the treatment. Six months to one year after treatment, the trailmaking times in EEG bio-feedback group A were significantly less than in the MPH group. EEG bio-feedback group B showed significant decreases in trailmaking time post-treatment and during follow-up. Conclusions EEG bio-feedback may produce significant and long-term improvements in attention stability, attention allocation and attention shift. EEG bio-feedback may be useful for children with ADHD when methylphenidate is ineffective.
4.Discussion on computing diagnostic coincidence and pendency in hospital information system
Jianling ZHANG ; Fenghua LI ; Dan ZHANG
Journal of Medical Postgraduates 2003;0(04):-
Diagnostic coincidence and pendency are important statistical indexes in hospital administration,they come from hospital statistical program in hospital information system.The article discusses diagnostic coincidence and pendency in hospital information system,points out the program's fatal vices and puts forward relevant method.
5.Clinical study of the sustained-release ibuprofen gel for treatment of chronic periodontitis
Zhenwei HOU ; Hexiang BAI ; Fenghua ZHANG
Journal of Practical Stomatology 2000;0(05):-
Objective:To explore the feasibility of sustained-release ibuprofen gel as a new local drug and its efficacy in the treatment of chronic periodontitis.Methods:Sustained-release ibuprofen gel was manufactured with PLGA as sustained-release adjuvant.Its release in vitro was tested by UV-spectrophotometer.60 teeth from 30 chronic periodontitis patients were chosen.Each patient had two teeth which were similar.The two teeth of every patient were divided into experiment group and control group.After scaling and root planning the sustained-release ibuprofen gel was injected into the pocket in the experiment group every week,two times in all.While those in the control group only had scaling and root planning.The local symptoms,sulcus bleeding index(SBI),probing depth(PD) and attachment level(AL) of the two groups were observed in the second and fourth week after treatment.Results obtained from the two groups were compared.Results:There were significant differences in each clinical index between the experiment group and the control group(P
6.Inhibition Effects of Tranilast on Hypertrophic Scar Tissue of Rabbits and Its Mechanism Study
Zongzhi LI ; Fenghua YAN ; Yongzhen ZHANG
China Pharmacy 2017;28(7):919-922
OBJECTIVE:To study the inhibition effects of tranilast on hypertrophic scar tissue of rabbits and its mechanism. METHODS:Rabbits were selected to induce hypertrophic scar(HS)model,the HS model rats were randomly divided into model control group (normal saline),tranilast low-dose,medium-dose,high-dose groups (0.3,0.5,0.7 mg/kg),6 rabbits in each group,local intradermaly injected corresponding drugs. Scar thickness 1 h before injection and the first,third,fifth week after in-jection in each group were measured,pathological changes of scar(fifth week after injection)were observed,transforming growth factor β1 (TGF-β1),α-smooth muscle actin(α-SMA)mRNA and protein expression were detected. RESULTS:Compared with 1 h before injection,scar thickness of rabbits in other groups were decreased after injection except for model control group. In fifth week after injection,compared with model control group,scar thickness of rabbits in other groups were decreased,pathological changes were improved;TGF-β1,α-SMA mRNA and protein expression were decreased (P<0.05),showing positive correlation with tranilast dose. CONCLUSIONS:Tranilast can inhibit the formation of hypertrophic scar,and the mechanism may be related to inhibiting the TGF-β1,α-SMA mRNA and protein expression.
7.Appliance of electric signature and related regulations in electric medical records
Dan ZHANG ; Fenghua LI ; Wanming FU
Journal of Medical Postgraduates 2004;0(02):-
Considering technology,regulations and other factors,nowadays we still use the records of print instead of in digital.《Electric Signature Law》makes a new environments for the study of electric medical records system.It regulates the writing,originally form and the save of electric medical records,affirms its value of evidence in court and prescribes what is dependable electric signature.
8.ANALYSIS OF STRUCTURED DATA ENTRY OF ELECTRONIC MEDICAL RECORDS
Ensi ZHANG ; Yanmei CHEN ; Fenghua ZHOU
Modern Hospital 2015;(3):144-145,148
The author analyzed how toelaborate narrative contents using structured standard with electronical -ly structured medical record information model and the relation of the two .Astructured medical record data entry way was worked outcompatible with standard terminology based on ways of expressing narrative contents using structured standard.It provided a theoretical basis for clinical use .
9.Effect of an Anti- Keratin Monoclonal Antibody 5G5 on the Proliferation of Cultured Keratinocytes
Liang ZHANG ; Xiaodong ZHAO ; Fenghua LAN
Chinese Journal of Dermatology 1995;0(04):-
Objective To investigate the immunological activity and the effect of an anti- keratin monoclonal antibody 5G5 on the proliferation of serum- free cultured keratinocytes. Methods The reactivity of 5G5 with cultured keratinocytes was observed by immunohistohemistry technique. The keratins extracted from the cultured keratinocytes was identified by SDS- PAGE and their reactivities with 5G5 were assessed by immunoblot analysis. MTT was used to study the influences of 5G5 on the proliferation of cultured keratinocytes. Results 5G5 recognized the band of keratin with molecular weight of 50 000 only. Positive staining of 5G5 was found in the cytoplasm of cultured keratinocytes. The strong potential of 5G5 to inhibit the proliferation of cultured keratinocytes was shown by MTT assay with dose- dependent manner. Conclusions The antibody which specifically recognizes the keratin with molecular weight of 50 000 may be the effective component to inhibit the proliferation of cultured keratinocytes.
10.Role of peroxisome proliferator-activated receptors gamma related signaling pathway in the development of rat hyperlipidemia
Fenghua LV ; Jianzhi GAO ; Jinying ZHANG
Chinese Journal of Geriatrics 2011;30(12):1047-1050
ObjectiveTo investigate the role of peroxisome proliferator-activated receptor gamma (PPARγ)/Caspase-8/Caspase-3 signaling pathway in the development of hyperlipidemia in rats.Methods 60 healthy male SD rats 〔4-week old,weight (110 ± 10) g〕 were randomly divided into control group,high-fat diet group,folic acid group,vitamin B12 group,folic acid and vitamin B12 group.After one week's feeding for adaptability,the groups of foloc acid,vitamine B12 and foloc acid + vitamineB12 were dealt with intraperitoneal injection of folic acid (0.5 mg/d),vitamin B12 (0.05mg/d),and folic acid (0.5 mg/d) plus vitamin B12 (0.05 mg/d),respectively,and fed with high fat diet simultaneously.Control group was dealt with intraperitoneal injection of normal saline (0.5 ml/d)and fed with normal diet.High-fat diet group was only fed with high fat diet.Reverse transcription polymerase chain reaction (RT-PCR) was used to measure the mRNA level of PPARy,Caspase-8 and Caspase-3 in aorta abdominalis dissected at 17 weekends.Results Folic acid alone or jointed with vitamin B12 could effectively increase the level of PPARγ,while decrease the mRNA levels of Caspase8 and Caspase-3 as compared with high-fat diet group (P<0.05),and folic acid plus vitamin B12 was more effective than folic acid alone (P<0.05).Conclusions Folic acid alone or joined with vitamin B12 can improve the mRNA levels of PPARγ,Caspase-8 and Caspase-3 in vascular wall to protect endothelial injury from hyperlipidemia.