Objective To observe the dynamic change of activated cytotoxic T lymphocyte (CTL) percentage during periopera-tive period in the patients with breast cancer and to explore the value of detecting the peripheral blood activated CTL in monitoring the perioperative condition of breast cancer patients .Methods The lymphocytes in whole blood were defined by forward scatter and side scatter (FSC/SSC) signal parameters by adopting flow cytometry (FCM ) ,the CD3 ,CD8 and CD38 antigens on lymphocyte surface were detected by CD3-FITC ,CD8-APC and CD38-PE monoclonal antibody ,respectively .The CD3+CD8+CD38+ percentage in 20 healthy people were detected with the established method to determine the reference ranges ,and the dynamic changes of CD3+CD8+ CD38+ cells percentage in total T cells and cytotoxic T cells of 33 patients with breast cancer during perioperative period were observed .Results The percentages of CD3+ CD8+ CD38+ /CD3+ and CD3+ CD8+ CD38+ /CD3+ CD8+ in healthy group were (13 .46 ± 4 .08)% and (29 .98 ± 9 .1)% ,respectively .Both the CD3+ CD8+ CD38+ /CD3+ [(10 .44 ± 6 .61)% ] and CD3+ CD8+CD38+ /CD3+CD8+ [(22 .34 ± 10 .68)% ] before operation in 33 patients with breast cancer were significantly lower than those in healthy group (P<0 .05);CD3+CD8+CD38+ /CD3+ [(9 .64 ± 6 .16)% ] on postoperative 1 d was significantly lower than that in preoperation(P<0 .01);CD3+CD8+CD38+ /CD3+ [(12 .67 ± 7 .73)% ] and CD3+ CD8+ CD38+ /CD3+ CD8+ [(27 .42 ± 10 .65)% ] on postoperative 7 d were significantly higher than those in preoperation (P<0 .05) ,the difference with the healthy control had no statistical significance(P>0 .05) .Conclusion Observing the dynamic change of CD3+CD8+CD38+ cells percentage has an impor-tant significance for monitoring the perioperative condition of the patients with breast cancer ,contributing to get the activated CTL recovery situation of the patients and to choose the correct chemotherapy occasion for the patients .

Objective To investigate the protective effect of GSH on lung injury in rats with severe acute pancreatitis(SAP) and investigate the mechanism of severe acute pancreatitis associated lung injury. Methods Fifty-four Spragwe Dawley rats were randomly divided into three groups: control group, model(SAP)group and herbal group. Rats in model group and herbal group were induced pancreatitis by retrograde injection of 5% sodium taurocholate into the pancreatobiliary duct. Animals were killed at 3h, 6h, 12h after injection. The serum amylase was examined at 3h, 6h, 12h after injection. Pulmonary tissue fluid content was measured.The expression of pulmonary TNF-α mRNA and LIF mRNA was detected by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR). Results The serum level of amylase was lowered significantly in herbal group in comparision with that in model group (P<0.05) and pulmonary tissue fluid content in herbal group was reduced compared with model group (P<0.05). Similarly, the level of pulmonary TNF-α mRNA and LIF mRNA expressions was both significantly reduced in herbal group compared with model group (P<0.05). LIF mRNA was not examined in normal control group. Conclusion Treatment with GSH can prevent lung injury of rats with SAP.

Objective To investigate the diagnosis and treatment of bilateral thyroid carcinoma(BTC).Methods Clinical data of 68 cases with BTC from July 2001 to July 2008 were analyzed retrospectively.Results All patients underwent surgical treatment.22 cases received total thyroidectomy and bilateral functional neck dissection,30 cases received total thyroidectomy and unilateral functional neck dissection,14 cases received total thyroidectomy and lymph node dissection of Ⅵ area,2 cases received palliative resection.12 cases received proper radioactive 131I therapy after operation.Postoperative complications occured in 16 cases,including 5 cases with transient recurrent nerve paralysis,1 case with permanent injury of recurrent laryngeal nerves received trachea incision,1 case with tracheomalacia and asphyxia,6 cases with convulsion caused by hypocalcemia,1 case with permanent hypoparathyroidism,2 cases with chylous fistula(one was cured by saturing and ligaturing and the other by conservative treatment).Low echo solid or cystic solid nodules in thyroid were found by preoperative ultrasonic scan in all cases,in which 38(55.88%)cases were associated with gravel calcified lesion in thyroid nodules.The diagnosis was comfirmed by needle aspiration biopsy(NAB)in 42 cases preoperatively and 64 cases(94.12%)by frozen section intraoperatively.63(92.64%)cases were followed up postoperatively for a period from 6 months to 5 years,all 5 cases with recurrence and/or metastasis had tumor-free survival after reoperation except for 1 case with undifferentiated cancer died on the 6th month after operation.Conclusions Total thyroidectomy and lymph node dissection is essential to the treatment of BTC.Gravel calcified lesion revealed by preoperative high frequency ultrasonagraphy is an important characteristic for preoperative diagnosis of thyroid cancer.

Objective To campare the clinical efficacy of wrist-ankle acupuncture versus physical therapy in treating lumbar intervertebral disc herniation (LIDH).Method Fifty LIDH patients were randomized into a treatment group of 20 cases and a control group of 30 cases. The treatment group was intervened by wrist-ankle acupuncture, while the control group was by traction and interference electrotherapy. The short-form McGill Pain Questionnaire (SF-MPQ) and lumbar pain scoring system by Japanese Orthopedic Association (JOA) were compared before and after intervention.Result The SF-MPQ and JOA scores were significantly changed respectively after 5-day, 10-day, 15-day treatment as well as at the follow-up study in both groups (P<0.01). There were no significant differences between the two groups in comparing the SF-MPQ and JOA scores respectively after 5-day, 10-day, 15-day treatment as well as at the follow-up study (P>0.05).Conclusion Wrist-ankle acupuncture and physical therapy both are effective in treating LIDH, as they both can release the pain.

ObjectiveTo develop a transgenic mouse model for N.gonorrhoeae researches.Methods Human carcinoembryonic antigen-related cellular adhesion molecules 1 (hCEACAM1) eukaryotic expression vector,pCDPGICAM1,was used to generate transgenic mice by microinjection.The funder mice were screened by PCR,sequence analysis,Western blot and fluorescence-activated cell sorting analysis,respectively.The transgenic mice expressing hCEACAM1 were inoculated with N.gonorrhoeae intravaginally.Adhesion and infection of gonococci to mice were analyzed by bacteria culture and microscopy.Results Four (lines 50,53,54,and 59) of the 22 F0 generation transgenic mice were found to carry the transgene.The hCEACAM1 protein was expressed on the cell membrane of various tissues in the line 53 transgenic mouse.Compared with normal mice,N.gonorrhoeae can successfully infect and cause inflammation in the transgenic mice.Conclusion The hCEACAM1 transgenic mouse can be used as an animal model for gonococcal infections.

Objective To prepare the serum reference materials for total thyroxine .Methods Individual blood samples were collected from 13 healthy donors (7 males and 6 females) aged from 20 to 50 years old, and the sera were separated and mixed into 4 serum pools according to the concentration of thyroxine.The materials were tested for homogeneity and stability using routine methods .The method of isotope dilution liquid chromatography tandem mass spectrometry ( ID-LC/MS/MS) was used to determine the concentration of thyroxine .The candidate reference materials were also measured by four conventional methods to analyze the commutability of the materials .Results It showed that the four candidate reference materials were homogeneous and commutable in four conventional methods and they were tested to be stable for at least 1 year at -70 ℃using the isochronous stability study .The certified values ( reference value ± expanded uncertainty ,nmol/L) were:75.9 ±1.8,105.3 ±2.2,114.7 ±2.1 and 187.4 ±2.9.Conclusions Certified reference materials for serum thyroxine have been prepared .These materials have been approved to be the Certificate Reference Materials of GBW 09127,GBW 09128,GBW 09129 and GBW 09130.

BACKGROUND:Osteoporosis is often accompanied by sarcopenia and an increased risk of fractures from falls.Recent studies have indicated a close relationship between lipid metabolism and sarcopenia.Abnormal lipid metabolism may directly impact muscle physiological function and metabolism. OBJECTIVE:To investigate the relationship between lipid metabolism and sarcopenia and evaluate their causal relationship using Mendelian randomization. METHODS:Mendelian randomization was used to explore the causal relationship between low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,triglycerides,and muscle mass.Research data from genome-wide association studies were used and a sensitivity analysis was conducted to verify the reliability of the results.Approximate indicators of muscle mass,including trunk lean mass and appendicular lean mass,were used as outcome measures. RESULTS AND CONCLUSION:The study found a negative correlation of low-density lipoprotein cholesterol and triglycerides with muscle mass,while no correlation was observed between high-density lipoprotein cholesterol and muscle mass.The results of the sensitivity analysis indicated a robust causal relationship.Using Mendelian randomization,this study provides evidence of a causal relationship between low-density lipoprotein cholesterol and triglycerides and muscle mass.This finding deepens our understanding of the effects of lipids on sarcopenia and has important clinical implications for the prevention and treatment of sarcopenia and osteoporosis.