Objective To explore the effect of protocatechuic acid on serum tumor necrosis factor-α( TNF-α) , interleukin-1β( IL-1β) and oxidative stress products levels in Parkinson rats.Methods 60 male SD rats were randomly divided into normal control group ( n=10 ) , model group (n=10), madopar group (n=20) and protocatechuic acid group (n=20).Rat model with Parkinson disease were builded in model group, madopar group and protocatechuic acid group.Madopar group and protocatechuic acid group were given corresponding drug with a consecutive treatment of two weeks.After treatment,the serum TNF-α,malondialdehyde (MDA), superoxide dismutase (SOD) and IL-1βlevels were detected in all groups.Results Compared with normal control group, the serum TNF-α, IL-1βand MDA levels in model group were significantly higher, and SOD level was lower (P<0.05).Compared with model group, the serum TNF-α, IL-1βand MDA levels in madopar group pre-treatment were significantly lower, and SOD level was higher (P<0.05).There were no significant difference of serum TNF-α, IL-1β, MDA and SOD levels between madopar group and protocatechuic acid group.Conclusion The protocatechuic acid could significantly reduce the serum TNF-α, MDA and IL-1βlevels in Parkinson model rats, enhance the activity of SOD, which has protective effect on oxidative stress injury induced by Parkinson disease.

Objective To investigate the effect of formoononetin on endostatin ( ES ) , vascular endothelial growth factor ( VEGF ) , matrix metalloproteinases 2(MMP-2), basic fibroblast growth factor (bFGF) in hydrothorax and serum, and tumor biomarkers of patients with elderly advanced lung cancer.Methods 67 cases elder with advanced lung cancer were selected and randomly divided into two groups.33 cases in control group were treated with conventional therapy of NP chemotherapy regimen, 34 cases in experiment group were combined with formononetin.The changes of ES, VEGF, MMP-2, bFGF, tumor marker levels in hydrothorax and serum and life quality evaluation were compared.ResuIts Compared with control group, the contents of ES, VEGF, MMP-2, bFGF in hydrothorax and serum of experiment group significantly decreased (P<0.05); the carcino embryonie antigen (CEA), neuron specific enolase (NSE), cytokeratin-19-fragments (CYFRA21-1), and carbohydrate antigen 125 (CA125) in serum of experiment group significantly decreased ( P<0.05 ); the life quality evaluation improved better of experiment group (χ2 =4.96, P<0.05 ). ConcIusion Formononetin has better clinical effect in treatment of elderly patients with advanced lung cancer patients.It could effectively improve the quality of life, reduce ES, VEGF, MMP-2, bFGF and other indicators in hydrothorax and serum, which has the vital significance to the clinical therapy.

ObjectiveTo discuss the clinical value of serum CA125 and endometrial antibody (EMAb) for the diagnosis of endometriosis.Methods216 patients were determined by the presences of CA125 and EMAb before operation.ResultsAll cases were diagnosed by pathology after operation. CA125 positive rate in the endometriosis group was 58.3% and that in the control group was 12.5%. The difference between two groups was significant (P<0.01).EMAb positive rate in the endometriosis group was 31.3% and that in the control group was 14.3%. The difference between two groups was also significant (P<0.01). When determining CA125 alone to diagnose endometriosis, the sensitivity rate was 58.3% and specificity rate was 87.5%. If determining EMAb alone to diagnose endometriosis, the sensitivity rate was 31.3% and specificity rate was 85.7%. When one of them was used as diagnostic criterion, the sensitivity and specificity were 64.6% and 73.2% respectively. If combining use of both CA125 and EMAb as diagnostic criterion, the sensitivity and specificity were 25.0% and 100% respectively.Conclusions The determination of serum CA125 or EMAb levels is helpful for the qualitative diagnosis of endometriosis, especially using them combined, the diagnostic accuracy may be enhanced.

BACKGROUND:Animal models of osteoporosis play an important role in the research of the pathogenesis, occurrence and development of osteoporosis, as wel as in the clinical diagnosis, prevention and treatment of osteoporosis. OBJECTIVE: To summarize and discuss the establishment and research ideas of osteoporosis models, explore the current situation and advance of osteoporosis models, compare the advantages and disadvantages of various methods, and provide evidence for clinical investigation. METHODS: A computer-based online search was conducted in SinoMed, VIP, Wanfang and PubMed databases by using the key words of “animal model, osteoporosis” from January 1969 to October 2015. The language was limited to both Chinese and English. Relevant articles were screened according to inclusion and exclusion criteria. The documents about the methods of osteoporosis model preparation, method improvement as wel as their advantage and disadvantage were summarized. RESULTS AND CONCLUSION:A total of 576 articles were included. Among them, articles published earlier, duplicated, and similarly were excluded, and 53 articles were finaly included. Various animal models of osteoporosis may only focus on the certain causes, certain stage, some of the main symptoms and some pathophysiological changes of disease. Accordingly, appropriate modeling methods and experimental animals should be selected based on research objective. Rat undergoing castration is the most commonly used model in the modeling of osteoporosis. Among drug methods for constructing osteoporosis model, glucocorticoids is the most commonly used one. Disuse method and nutritional method have limitations, and always combined with castration and drug methods. The effects of gene transfer, gene mutation and brain-derived model deserve

Objective To investigate the early changes of CD4 + T cells and the relevant cytokines in blood of patients with severe trauma.Methods Sixty-one consecutive patients with trauma admitted into the 97th Hospital of PLA from September 2009 to November 2011 were enrolled in this study.The exclusion criteria included:① Patients were younger than 18 or older than 75 years.②Patients received blood transfusion.③Those suffered from immune system disorders,tumors or diabetes,or recent history of virus,bacteria or parasites infections.④ Those had current or recent treatment with corticosteroids or immunosuppressive drugs.According to ISS score ≥ 16,there were 61 traumatic patients divided into mild trauma group and severe trauma group.Seventeen healthy volunteers were taken as control subjects.At admission,the peripheral venous blood samples of patients were taken to count the number of CD3+,CD4 +,CD8 + T cells by flow cytometry and to detect TNF-α,INF-γ,IL-1,IL4,IL-6 and IL-12 levels in plasma by enzyme linked immunosorbent assay,meanwhile the ratio of Th1 / Th2 type cytokine were calculated.Data were analyzed with t test and ANOVA or Kruskal-Wallis test by using SPSS version 16.0package.P value ＜ 0.05 was considered to be statistical significance.Results Compared with control group,mild trauma and severe trauma groups showed a similar decrease in number of CD3 + T cells,and severe trauma group showed a most significant decrease in number of CD4 + T cells.Severe trauma group had a lower INF-γ level compared with control group; IL-1 level in both mild trauma and severe trauma groups were lower than that in the control group; INF-γ/ IL-6 in severe group was significantly lower than that in the mild group.However,INF-γ IL-6 in mild group was higher than that in the control group.Conclusions The early stage of severe trauma exhibits a significant decrease in number of both CD3 + and CD4 +T cells,accompanied by a significant reduction in most of cytokines,and has a tendency of shift to Th2 type cytokine.Therefore,the changes of immune cells should be promptly and successively monitored after severe trauma.

Objective To investigate the distribution of arterial stenosis in patients with ischemic cerebrovas-cular disease and its risk factors .Methods 224 patients with ischemic cerebrovascular disease were divided into four groups according to DSA results .Patients showed no stenosis or mild stenosis were selected as control group ( 43 ca-ses),the other patients were divided into pure extracranial stenosis group (41 cases),simple intracranial stenosis group (93 cases) and extracranial stenosis group (47 cases).The results of laboratory test were analyzed .The ques-tionnaire was designed and the indicators including name ,age,long-term smoking,drinking,hypertension and diabetes were collected .Results Of all the subjects , there were 181 cases with artery stenosis .Single factor results showed that gender,age,long-term smoking,long-term drinking,hypertension,diabetes,high homocysteine,high level of lyso-phosphatidic acid were the independent risk factors of cerebral artery stenosis (χ2/t =8.744, 5.562, 10.736, 11.032,9.812,10.002,9.083,2.576,all P<0.05).Multivariate analysis showed that high homocysteine ,long-term smoking and drinking were the risk factors of simple intracranial artery stenosis .High homocysteine and high fibrino-gen were risk factors of simple extracranial stenosis .Age,hypertension,long-term smoking and drinking ,high homocys-teine and fibrinogen were risk factors of intracranial and extracranial stenosis .Conclusion In patients with ischemic cerebrovascular diseases ,the simple intracranial artery stenosis is most common .The incidence of cerebral artery ste-nosis has age characteristic ,with the increase of age ,the incidence rate of intracranial and extracranial artery stenosis is rising.High homocysteine,long-term smoking and drinking,hypertension,diabetes,high lysophosphatidic acid are independent risk factors of cerebral artery stenosis .

ObjectiveTo observe the effect of betulinic acid(BetA) on the growth of human cytokine induced killer(CIK) cells and the killing activity of CIK cells on the gastric cancer cells in vitro before and after induced by betulinic acid,explore its mechanism.MethodsPeripheral blood mononuclear cell (PBMC) were separated form the healthy and were induced with various of cytokine to become CIK cells in vitro.CIK cells were collected on the tenth day and were induced with betulinic acid in different concentrations,followed by 48 h,the colorimetric methyl thiazolyl tetrazolium(MTT) method assay the proliferation rate of human CIK cells.Flow cytometry (FCM) was used to detect the expression changes of perforin,granzyme B and CD107a of human CIK cells before and after betulinic acid-induced.Lactate dehydrogenase (LDH) release assay was used to measure the influence on cytotoxic activity of CIK cells induced by betulinic acid against gastric cancer cell line SGC-7901 in vitro.Western blot assay was used to measure the extracellular signal-regulated kinase1/2 (ERK1/2),and adapter proteins SH2-domain containing leukocyte protein of 76KD(SLP-76) and linker for activative of T cells(LAT) expression changes of human CIK cells before and after drug-induced.ResultsBetulinic acid can promote CIK cells growth when the concentration were in 0.08-10 μg/ml,the expression of perforin,granzyme B and CD107a of CIK cells were significantly higher than control group(P＜0.05) when the concentration of betulinic acid were in 0.3 μg/ml.In the meanwhile,the cytotoxic activity of CIK cells in vitro against gastric cancer cell line SGC-7901 were also remarkably higher than the control group (P＜0.05).The expression of SLP-76,LAT and ERK1/2 were significantly increased to a certain extent than the control group( P＜0.05 ),when CIK cells were treated with betulinic acid.ConclusionThese results suggest that betulinic acid can promote CIK cells growth in some concentrations and increase the cytotoxic activity of CIK cells against gastric cancer cell line SGC-7901,its mechanism may related with two factors,on the one hand,enhancing the activity of SLP-76,LAT and ERK1/2,on the other hand,increasing the expression of perforin,granzyme B and CD107a on the surface of CIK cells.

Objective To observe the local immue response and changes of angiogenic factors of tumor cells in Heps-bearing mice after mesenchymal stem cell (MSC) are administrated. And to explore the feasibility and safety of MSC for liver tumors therapy. Methods MSC were obtained through adherent culture method. Phe-notypes of MSC were analyzed by flow cytometry. MSC were labeled with DAPI in vitro. 54 Mice of 8 weeks of age with subcutaneously transplanted liver carcinomas were developed randomly. When the maximal diameters of the tumor reached 0.5 - 0.8cm, they were divided into three groups randomly: MSC group, DAPI group and NS control group. 2 × 10~6 MSC and MSC marked by DAPI were administrated into the mice right rear back tumor tissue. The survival time of the tumor-bearing mice was recorded and the mean survival time was calculated. Immunohistochemical staining was performed to count CD4~+ T cells and CD8~+ T cells in the local tumor,as well as to examine the expression of vascular endothelial growth factor ( VEGF) in tumor cells. Results In the MSC group,the mean survival time was 45 d (95%CI;33 ～56 d) ,in the NS control group, the mean survival time was 33 d ( 95%CI : 28 ～ 37 d). There was a statistical significance in the difference between them ( P < 0.05). Immunohistochemical staining results showed as follow: the number of CD4~+ T cells and CD8~+ T cells in the MSC group decreased significantly in comparison with the NS control group at early stage. The expression of VEGF also decreased obviously in comparison with the NS control group and induced tumor cells necrosis at late stage. The survival time of MSC group was prolonged. Conclusion MSC can engraft in Heps-bearing tumor tissue, and inhibit T lymphocyte cellular immunity at early stage. It can reduce the number of CD4~+ T cells and CD8~+ T cells and promote tumor growth. MSC can down regulate VEGF expression and induce tumor cells necrosis at late stage. By this way,it can prolong the survival time of Heps-bearing mice.

Objective To summary and analysis the clinical experiences on the three hole method of VATS surgery in treatment of primary spontaneous pneumothorax.Methods The clinical data of 276 cases of primary spontaneous pneumothorax undergoing VATS surgery from July 2005 to July 2011 were analyzed retrospectively.Results The operating times were 25 to 76 minutes,averaging (41.7 ± 2.1) minutes ; all with traces of bleeding; transiting assisted small incision operation in 5 cases;postoperative thoracic closed drainage extubation time of 4-13 days,average (6.7 ± 0.2) days,mild postoperative air leakage in 27 cases,moderate in 9 cases without severe leakage,leakage,postoperative pulmonary atelectasis in 7 cases,pulmonary infection in 2 cases,reexpansion pulmonary edema in 1 cases,postoperative follow-up for 6-17 months,averaging(10.2 ± 1.7) months,recurrence occurred in 7 cases,1 case of operation again.Conclusion Three hole method of VATS technique has short operating time,less trauma,fewer complications,faster recovery,shorter hospitalization time and other advantages,and the recurrence rate is low,which is the ideal mode of operation for the treatment of primary spontaneous pneumothorax.

Objective To observe the effect of pituitary adenylate cyclase activiting polypeptide (PACAP) on traumatic brain injury (TBI) and on tbeCD4+/CD8+ T cell number in blood and spleen of rats.MethodsThe male SD rats were randomly (random number) divided into sham operation group ( n =6),normal saline + TBI group ( n =6) and PACAP + TBI group ( n =6).Right parietal cortical contusion was produced by a weight-dropping method.PACAP was administered intra-cerebroventricularly in a dose of 1 μg/5 μl 20 min before TBI.Brain tissue samples were taken 24 h after trauma.The injured brain tissue of rats was examined by HE stain.The numbers of CD4+/CD8+ T cells in blood and spleen were deteced with flow cytometry.Results Edema,hemorrhage,inflammatory cell infiltration,swollen,degenerated neurons and neurons arrayed disorderly around the injured cortex in hippocampus were found under light microscope.The average numbers of CD4 + T lymphocytes counts in blood and spleen were lower ( P =0.000,P =0.005 ),and number of CD8 + T lymphocytes was higher ( P =0.01 ) in TBI rats group than those in the sham operation group.Micro-injection of PACAP into cerebroventricular attenuated the injury,significantly increased the number of CD4 + T lymphocytes in blood and spleen ( P =0.019,P =0.839),and decreased the number of CD8 + T lymphocytes.ConclusionsPretreatment with PACAP may protect against TBI via influencing periphery T cellular immune function.