In order to explore the effect of flipped classroom in theoretical teaching of biochemistry,lipids metabolism was selected to carry out four stages flipped classroom.The teaching effect of flipped classroom was evaluated by test and questionnaire survey of students.The results indicated that most undergraduate students could accept novel teaching method.However,the consciousness and the ability of students' independent learning need to be further improved.It also takes time for the students to adapt to the transition from traditional teaching to flipped c1assroom.In summary,the specificity of Biochemistry may limit the carrying out of flipped classroom to some extent.Therefore,which kind of teaching method is adopted depends on the biochemistry theoretical content.Our work may provide some references for further application of flipped classroom in biochemistry teaching.

To introduce Prof. T ian Cong-huo’s commonly used acupuncture methods and their clinical application, in order to summarize the famous doctor’s experience, promote the experience inheritance of Chinese acupuncture, and enhance the therapeutic effect of acupuncture.

A new, convenient, and rapid method for kinetic measurement of human fibrinolysis was established. The alteration of absorbance (A) in the process of blood coagulation and lyses was automatically scanned and recorded using a UV2000 spectrophotometer connected to a computer. The parameters of human fibrinolysis kinetics were established. Urokinase at 20 U/mL was the optimal concentration used. There was significant difference in fibrinolysis kinetics and plasma plasminogen concentration between 22 normal subjects and 27 patients with acute myeloblastic leukemia (P<0.05 and <0.01 respectively). The coefficience of variation was (5.24+/-1.51)%. This method could also be used to measure the plasma fibrinogen concentration at the same time. It was concluded that this method was stable and was capable of providing dynamic, direct experimental data and multiparemeters for clinicians. It was also valuable in evaluating the anti-and pro-fibrinolytic capcity of patients' plasmas, allowing for monitoring of therapy, choice of drugs and adjustment of drug concentrations.

In order to explore the method to prepare hypoxia UW solution and the stability and preservation of hypoxia UW solution, UW solution was purged by argon or air for 15 min or 60 at a flow rate of 0.8 or 2 L/min, and the oxygen partial pressure of UW solution was detected. The hypoxia UW solution was exposed to the air or sealed up to preserve by using different methods, and the changes of oxygen partial pressure was tested. The results showed that oxygen partial presure of 50 mL UW solution, purged by argon for 15 min at a flow rate of 2 L/min, was declined from 242+/-6 mmHg to 83+/-10 mmHg. After exposure to the air, oxygen partial pressure of hypoxia UW solution was gradually increased to 160+/-7 mmHg at 48 h. After sealed up by the centrifuge tube and plastic bad filled with argon, oxygen partial pressure of hypoxia UW solution was stable, about 88+/-13 mmHg at 72 h. It was concluded that oxygen of UW solution could be purged by argon efficiently. Sealed up by the centrifuge tube and plastic bag filled with argon, oxygen partial pressure of UW solution could be stabilized.
Adenosine/chemical synthesis ; Allopurinol/chemical synthesis ; Anoxia ; Glutathione/chemical synthesis ; Insulin/chemical synthesis ; Organ Preservation/*methods ; Organ Preservation Solutions/*chemical synthesis ; Oxygen/*analysis ; Partial Pressure ; Raffinose/chemical synthesis

Adenoma ; metabolism ; pathology ; surgery ; Aged ; Diagnosis, Differential ; Endodermal Sinus Tumor ; pathology ; Female ; Humans ; Immunohistochemistry ; Neprilysin ; metabolism ; Ovarian Neoplasms ; metabolism ; pathology ; surgery ; Sex Cord-Gonadal Stromal Tumors ; pathology ; Stromal Cells ; metabolism ; pathology ; Vimentin ; metabolism

Objective To investigate the clinical effects of laparoscopic sleeve gastrectomy with duodenaljejunal bypass (LSG + DJB) for the treatment of type 2 diabetes mellitus.Methods The clinical data of 17 patients with type 2 diabetes mellitus who underwent LSG + DJB at the Xijing Hospital of the Fourth Military Medical University from March 2013 to February 2014 were retrospectively analyzed.The fasting blood glucose,postprandial 2-hour blood glucose,glycosylated hemoglobin (HbA1c) and body mass index (BMI) in 17 patients before operation were (9.2 ± 0.6) mmol/L,(14.4 ± 2.2) mmol/L,8.3％ ± 1.2％ and (29.4 ± 2.2) kg/m2,respectively.All the patients received LSG + DJB and were followed up by outpatient examination up to March 2015.The pre-and post-operative 12-month fasting blood glucose,postprandial 2-hour blood glucose,HbA1 c and BMI in 17 patients were compared.Measurement data with normal distribution were presented as-x ± s and analyzed by the t test.Results All the 17 patients received successful laparoscopic LSG + DJB without conversion to open surgery.The operation time,volume of intraoperative blood loss and recovery time of postoperative gastrointestinal function were (141 ±53)minutes,40 mL and 2.5 days.Of 3 patients with postoperative complications,1 patient with anastomotic leakage at postoperative day 5 received reoperation by laparoscopic Roux-en-Y gastric bypass,1 patient with digestive tract obstruction at postoperative day 10 released obstruction by reoperation and 1 patient with left subphrenic abscess and leakage at the upper of the stomach at postoperative week 2 was cured by the symptomatic treatment.The duration of hospital stay was 5.2 days.All the patients were followed up for a median time of 16 months (range,13-24 months).The postoperative 12-month fasting blood glucose,postprandial 2-hour blood glucose,HbA1c and BMI in 17 patients were (5.5 ± 0.7)mmol/L,(8.8 ± 1.7)mmol/L,5.1％ ± 0.7％ and (24.7 ± 2.3)kg/m2,which were significantly different from preoperative indicators (t =19.96,10.52,12.06,31.99,P ＜ 0.05).During the follow-up,no anastomotic ulcer and stenosis,dumping syndrome and severe malnutrition were occurred.Conclusion LSG + DJB is safe and feasible for the treatment of type 2 diabetes mellitus,with a good short-term hypoglycemic effect.

Objective To explore the method for repair of total avulsion of 2~4 fingers and to find the best procedure. Methods The wrap-round flap with part toenail combind with the dorsal pedical flap to repair soft tissue defect of the dorsal of finger and part of the palmar of finger, the second simepulp flap to repair soft tissue defect of the palmar of finger,transfer of two tissues with one pedicle to repair total avulsion of 2~4 fingers. Results All of 9 composite transplants in 6 cases were survived,the received areas were primary healing in 8 finger,1 case repaired by the bilateral wrap-round flaps and second simepulp flaps for index and middle finger,the distal phalanx of middle finger necrosis because of dislocation of DIP,3 months later,injury healed after the necrosis of phalanx excised,but the nail and the nail bed were dead.Except 1 case which the grafted skin necrotized in the donor area of the big toe,the rest had primary healing.All cases were followed up 6~14 months,the activity of joints were: MP 0-70,PIP 0-40.The repaired pulps had excellent appearance,the nail was fine,1 finger's mail was atrophy and 1 finger's nail was defect.The donor area had good fountion without pain and edema,the grafted skin had normal color and the activity of joints were nomal. Conclusion The wrap-round flap with part toenail combined with the second simepulp flap is a good approach in treatment of the skin avulsion injury in the finger.

Objective To investigate the ligand-binging characteristics of Veli3 PDZ.Methods Random peptide library was screened using yeast two-hybrid method with Veli3 PDZ as bait.In combination with bioinformatics method all the potential ligands in human proteome were predicted by searching human databases with the consensus-binding sequences.Fourteen native human proteins predicted as ligands were chosen by their cellular locations and biological functions for validating protein interaction in yeast two-hybrid system.Results The C-terminal consensus sequences for the Veil3 PDZ binding is X-COOH(X denotes any amino acid),which indicates that Veli3 PDZ belongs to classⅠ.Six of fourteen native human proteins predicted as ligands were confirmed to be positive in the yeast two-hybrid system.There were a lot of interactions between PSD-95,another PDZ protein,and the ligands of Veli3 PDZ reported previously and discovered in this study.Conclusion The six novel potential ligands of Veli3 found in this study provide significant clues for discovering biological functions of Veil3 proteins.Moreover,Veli3 PDZ and PSD-95 PDZ may compete in binding the same ligands.

Objective To study the expressions of Ki67 and mTOR in Thy-1 nephritis model of rat who were given 1,25-dihydroxyvitamin D3[1,25(OH)2D3] and to explore its mechanism. Methods Healthy male SD rats (n=90) were random?ly divided into three groups: control group, model group, 1,25(OH)2D3 treatment group (n=30 in each group). Model group and 1,25(OH)2D3 treatment group were intravenously injected with anti-Thy1 monoclonal antibody once via tail vein while the control group were administrated with same volume of normal saline through the same route. 1,25(OH)2D3 were adminis?trated at 0.5μg per day intra-gastrically for consecutive 21 days in 1,25(OH)2D3 treatment group while equal volume of pea?nut oil were given in control group and model group. Six rats were randomly selected from each group and sacrificed at the 1st , 3rd , 7th , 14th and 21st after drug intervention. Twenty four hour urine sample were collected in each rat just before it was culled to detect 24-hour urinary protein excretion. Renal tissue samples were harvested and stained with hematoxylin&eo?sin (H&E) and PAS to determine the renal pathological variation and the expressions of mTOR and Ki67 were assessed by immunohistochemistry. Results Urine protein begin to be detected at the first day after model was established, peaked at the 3rd days then started dropping until the 14th day when urine sample turned to normal. Urine protein levels were lower in 1, 25(OH)2D3 treatment group at the 1st,3rd,7th day after model establishment than those in model group(P<0.05). Compared with model group, the pathological damage of renal tissue in 1,25(OH)2D3 treatment group were alleviated at the 3rd and 7th day after model establishment (P < 0.05). Expressions of Ki67 and mTOR in 1, 25(OH)2D3 treatment group were reduced compared with those in model group (P<0.05). Twenty four hour urinary protein and expressions of Ki67 and mTOR as well as renal pathological damage were all positively correlated with each other. Conclusion 1,25(OH)2D3 can inhibit the proliferation of glomerular mesangial cells in Thy-1 nephritis model of rat. And its therapeutic mechanism may be associated with down reg? ulating expressions of Ki67 and mTOR.

Adenocarcinoma, Mucinous ; pathology ; Antigens, CD34 ; metabolism ; Breast ; metabolism ; pathology ; surgery ; Breast Diseases ; metabolism ; pathology ; surgery ; Breast Neoplasms ; pathology ; Diagnosis, Differential ; Female ; Fibroadenoma ; pathology ; Follow-Up Studies ; Humans ; Mastectomy ; Middle Aged ; Mucinoses ; metabolism ; pathology ; surgery ; Mucocele ; pathology ; S100 Proteins ; metabolism ; Vimentin ; metabolism