Humans ; Sympathectomy ; adverse effects ; methods ; Thoracoscopy ; adverse effects ; methods

Adolescent ; Adult ; Child ; Female ; Fistula ; surgery ; Humans ; Male ; Recurrence ; Reoperation ; Retrospective Studies ; Thyroglossal Cyst ; surgery ; Young Adult

Biotechnology supremacy is a newly-advanced power theory. It is a superior dominance of military biotechnological application based on the microcosm of life structure within a certain period of time. The advancement of biotechnology supremacy and modern biotechnology has created the concept of bio-micro-frontier, which involves information and defense resources of all living ultra-micro-organisms with national and regional characteristics. Being feasible both in theory and practice, the implementation of bio-micro-frontier system is strategically important. This article explores the implementation of bio-micro-frontier in terms of strategy and tactics, which will add a unique dimension to future military transformation and active defense.

Objective To investigate the cytokine spectrum of cultured human amniotic-derived mesenchymal stem cells (A-MSC) for understanding its basis of molecular biology in hematopoietic in vitro.Methods Their hematopoietic cytokines expression was analyzed using RT-PCR in the mRNA level. Results It showed that in vitro subcultured human amniotic-derived mesenchymal stem cells were capable to express many important hematopoietic cytokines such as LIF, SCF, M-CSF, G-CSF, GM-CSF, IL-3, IL-6, IL-11 and so on. Conclusion Production of abundant of hematopoietic cytokines by human amniotic-derived mesenchymal stem cells may be effective for hematopoietic support and HSC transplantation.

Objective To investigate the diagnostic value of macrophage migration inhibitory factor (MIF) for hepatocellular carcinoma (HCC).MethodsThe research was divided into 2 parts,including testing research and confirmatory research.The clinical data of 269 patients with HCC ( group A) and 390 individuals (including 135 patients with hepatic cirrhosis,106 with benign hepatic diseases and 149 healthy individuals,control group A) who were admitted to the Zhongshan Hospital of Fudan University from January to May,2004,and 173 patients with hepatic cancer (group B) and 257 individuals (including 86 patients with hepatic cirrhosis,79 with benign hepatic diseases and 92 healthy individuals,control group B ) who were admitted from August to December,2004,and 80 patients with HCC who received radical hepatic resection in January 2005 were retrospectively analyzed.Samples of plasma of patients in the group A and individuals in the control group A were collected before operation.Samples of plasma of patients received radical hepatic resection were collected preoperatively and at postoperative day 3,7 and 30.HCC and adjacent issues of patients in the group A were collected.The levels of MIF in the plasma and tissues were detected by enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry,respectively.Non-normal distribution data were described as M( QR).Differences between the groups were analyzed by using the Mann-Whitney U test,and the relationship between the levels of MIF in the plasma and tissues was detected by the Spearman correlation coefficient.The diagnostic value of MIF was analyzed by the ROC curve.ResultsThe levels of MIF in the plasma of patients in the group A and individuals in the control group A were 85.7 μg/L (58.8 μg/L) and 15.5 μg/L(31.6 μg/L),respectively.The levels of MIF in the plasma of the patients with hepatic cirrhosis,benign hepatic diseases and healthy individuals were 24.9 μg/L (12.6 μg/L),12.5 μg/L(7.3 μg/L) and 13.2 μg/L (7.7 μg/L),respectively.There was a significant difference in the level of MIF between the group A and the control group A (F =54.235,P ＜ 0.05 ).The area under the ROC curve reached peak when the level of MIF in the plasma was 35.3μg/L.Compared with the control group B,the vdues of AUC,sensitivity and specificity were 92.1％,90.7％ and 93.4％ in the group B.The levels of MIF of the patients with HCC before operation and at 3,7,and 30 days after operation were 81.0 μg/L(54.0 μg/L),76.1 μg/L(47.5 μg/L),50.9 μg/L (40.7 μg/L) and 18.7 μg/L ( 15.1 μg/L),respectively.The levels of MIF decreased with time passed by,and were back to normal at 30 days after the operation.The median expressions of MIF in the HCC and adjacent issues were 0.083 and 0.007,respectively,with a significant difference ( U =3.975,P ＜ 0.05).The expression of MIF in the plasma was positively correlated with its expression in the HCC tissue ( r =0.759,P ＜ 0.05 ).ConclusionMIF plays an important role in the genesis and development of HCC and has potential to be one of the molecular markers for the diagnosis of HCC.

Acute Disease ; Adolescent ; Adult ; Bridged-Ring Compounds ; poisoning ; Female ; Humans ; Male ; Middle Aged ; Poisoning ; therapy ; Treatment Outcome

Objective To investigate the changes of sympathovagal balance and the effects of va- gus stimulation on sympathovagal balance in endotoxemia rats.Methods Twenty-four Spragne Dawley rats were randomly divided into four groups.The frequency domain of heart rate variability(HRV)com- ponent was analyzed at 0 min,2 ,4 and 6 hours after intravenous injection of lipopolysaccharide(LPS, 5mg/kg)or physiologic saline,and cervical vagal nerve was stimulated(5mv,2ms,1Hz,5 min lasted, 20 min interval)when LPS or physiologic saline was injected.The levels of Noepinephine(NE)and Ace- tylcholin(ACh)were measured in liver tissues.Results Normalized low frequency(LFnm),hormali- zed high frequency(HFnm),very low frequency(VLF),LF/HF values and liver ACh were significantly increased(P＜0.05)and the level of liver NE was significantly decreased (P＜0.05)after LPS admin- istration.Vagal nerve stimulation markedly increased HFnm but decreased LFnm,VLF,LF/HF values, and the liver ACh also significant increased(P＜0.05 ).Conclusion The results suggest that the ac- tivity of sympathetic and vagal nerve was increased during endotoxemia,but the sympathetic activity was more excitable than that of vagal nerve.Vagal nerve stimulation increased the tone of vagus nerve while the tone of sympathetic nerve was decreased in this study.This may be beneficial for anti-inflammatory activity of vagal nerve.

Objective By analyzing the expression of cluster of differentiation 74 (CD74) in hepatocellular carcinoma (HCC) and HCC cell lines,the correlation between the level of CD74 expression and the patients' prognosis was investigated.MethodsThe expression of CD74 in high metastatic potential HCC cell lines(MHCC-LM3,MHCC-97H),low metastatic potential HCC cell line( MHCC-97L),and no metastatic potential HCC cell line(Hep-G2) were estimated by Western blot.The paraffin embedded tissues which include intra-tumor and paratumor tissues were collected from 320 patients who had received HCC curative surgical resection and 5 normal liver tissues from the donors of liver tranplantation.The high density tissue micro-array was made of these specimens. Immunol-histochemistry was applied to discover the different levels of CD74 in tumor,paratumor and normal liver tissues.Survival curves were generated by the Kaplan-Meier method and verified by the Logrank test.Cox proportional hazards regression analysis was applied to estimate the prognostic factors in multivariate analysis.ResultsThe expression level of CD74 was significantly higher in low metastatic potential and no metastatic potential HCC cell lines (MHCC-97L 1.224 ±0.014,Hep-G2 1.374 ±0.006) than that in high metastatic potential ones( MHCC-LM3 0.622 ±0.078,MHCC-97H 0.732 ± 0.083 ).Significant differences can be found between the groups (t =- 13.308,- 16.849,- 10.177,- 13.436,- 17.057; P ＜0.01 ).Meanwhile,in tumor tissues,the CD74 was expressed positively in 221 patients and negatively in 99 patients.But CD74 was expressed slightly in paratumor and negatively in 5 normal liver tissues.There's no significant differences between the groups categorization according to age,HBsAg,cirrhosis,AFP level,tumor number,tumor size,tumor capsule,blood vessel invasion,Edmondson Grades and tumor nodes metastasis classification (TNM) stages (x2 =0.053,0.141,1.200,0.000,0.277,1.975,0.263,1.044,0.000,0.433 ; P ＞ 0.05 ),except gender (x2 =3.954,P ＜ 0.05).Kaplan-Meier method showed that patients with positively expression of CD74 had better prognosis than others (x2 =5.620,P ＜ 0.05 ).Cox proportional hazards regression analysis showed that CD74 was a significant and independent prognostic factor of survival [ hazard ratio (HR) =0.721,95％confidence interval (CI) =0.522 - 0.996,P ＜ 0.05 ].Conclusion The expression of CD74 in hepatocellular carcinoma could be a biomarker of the prognosis and there's some potential correlation with cancer cell apoptosis.

This study is to investigate the effect of 8-prenylnaringenin (8-PNG) on osteoclastogensis of bone marrow cells and bone resorption activity of osteoclasts. Osteoclasts were separated from long bone marrow of newborn rabbits and cultured in alpha-MEM containing 10% FBS. 8-PNG was added into culture media at 1 x 10(-7), 1 x 10(-6), 1 x 10(-5) mol xL(-1), separately. 17beta-Estradiol (E2, 1 x 10(-7) mol x L(-7)) was used as positive control. T RAP staining and TRAP activity measurement were performed after 5 days, and the bone resorption pits were analyzed after 7 days. Annexin V staining for the detection of apoptotic osteoclasts was performed after 2, 4, 8, 12, 24, 36 and 48 h separately. The mRNA expression level of TRAP and cathepsin K (CTSK) was measured by real-time RT-PCR. 8-PNG significantly reduced the number of osteoclasts which was TRAP staining positive and with more than three nucleus, the area and number of bone resorption pits decreased obviously in 8-PNG-supplemented groups. The apoptosis rate peaked earlier in the 8-PNG-supplemented groups and the mRNA expression level of TRAP and CTSK decreased significantly. All these inhibitory effects were in a dose dependent manner, the highest effect was obtained by 1 x 10(-5) mol x L(-1) 8-PNG. 8-PNG inhibits bone resorption activity of osteoclasts by inducing osteoclast apoptosis and inhibiting the gene expression and enzyme activity including TRAP and CTSK, and restrains bone marrow cells to osteoclast differentiation.

Humans ; Metals ; Microwaves ; adverse effects ; Occupational Exposure ; adverse effects ; analysis ; Workplace