Objective To determine the contents of scutellarin and chlorogenic acid in Qingkailing extract by HPLC.Methods Kromasil C18 column was adopted and the mobile phase consisted of methnol-water-phosphoric acid (20 ∶80 ∶0.2) with the flow rate being 1.0 mL?min-1 and column temperature being 25 ℃.The detection wavelength was 327 nm.Results The linearity of scutellarin was good in the range of 0.090～0.540 ?g,r=0.999 9,and its average recovery rate was 100.3 %(RSD=0.99 %);the linearity of chlorogenic acid was good in the range of 0.196～1.176 ?g,r=0.999 9,and its average recovery rate was 99.9 %(RSD=1.06 %).Conclusion This method is sensitive,simple,accurate,and can be used for the quality control of Qingkailing extract.

Adult ; Calcinosis ; Heart Aneurysm ; pathology ; Heart Ventricles ; Humans ; Male ; Thrombosis ; pathology

[ABSTRACT]OBJECTIVETo investigate the expressions of Endoglin (CD105) and Galectin-3 protein in laryngeal squamous cell carcinoma (LSCC) as well as the relationship between their expressions and the clinicopathological factors of LSCC.METHODSThe expressions of CD105 and Galectin-3 protein were detected in 76 samples of LSCC and 25 normal laryngeal tissues (NLT) by immunohistochemical staining (S-P).RESULTS 1.The mean of Microvessel density (MVD) value marked by CD105 in LSCC was 10.33±2.29, which was significantly higher than that in NLT (1.20±1.04) (P<0.05). The expression of MVD marked by CD105 (CD105-MVD) was correlated with histological grading, T stage, clinical stage, lymph node metastasis, recurrence and prognosis in LSCC (P<0.05). 2.The positive expression rate of Galectin-3 protein in LSCC was 86.84%, which was significantly higher than that in NLT (36%)(P<0.05). The expression of Galectin-3 was correlated with T stage,clinical stage, lymph node metastasis, recurrence and prognosis in LSCC (P<0.05). 3.There was a positive correlation between CD105 and Galectin-3 protein. 4.Survival analysis indicated that the expressions of CD105 and Galectin-3, histological grading, lymph node metastasis,T stage and recurrence were independent factors for tumor prognosis in LSCC (P<0.05). CONCLUSIONThe expressions of CD105 and Galectin-3 protein have a positive correlation in LSCC. They may play important roles in the tumorigenesis, malignant progression and poor prognosis of LSCC. Combined detection of them may be great value in diagnosis and predicting prognosis of LSCC.

Objective To investigate the effects of output power,action time and radiofrequency(RF) needle on the cool-tip radiofrequency ablation(RFA) by experimental tools and to determine the value of ultrasonography in size evaluation of RFA zone.Methods The cool-tip RFA to fresh calf liver were monitored by ultrasound.The experiments by single electrode needle were performed with different combination of output power (80 W,120 W) and time (5 min,8 min,10 min).The cluster needle was used for assessment at 5 min with different output power(80 W,120 W).After the end of trial,the longitudinal specimens were cut open.The view and size of the ablation zone were recorded with naked eyes.The pathological changes displayed by optical microscope were recorded as well.Results The measurement of ablation zone with naked eyes showed with the ablation zone expanded with time in 80 W-power cases,but the pace of expansion slowed down,but in 120 W-power cases,expansion of the ablation zone was not obvious; the ablation zone in 120 W-power was bigger than that in 80 W-power at 5 min,their difference decreased with time,and the ablation zones were similar at 10 min.The cluster needle can produce ablation zone with lesser aspect ratio than that of single electrode needle,consequently similar to circle.Ultrasonic measurement of the ablation zone had real discrepancy.Most of longitudinal diameters were greater than the real ones,while in large ablation lesions,vertical diameters were often less than the real ones.Under optical microscope,no change could be found in shape and structure of the cells in ablation zone.Conclusion The output power and performing time have impact on ablation.The high-power output increased heat production as well as reduction of heat conduction.Compared with single electrode needle,the cluster needle produced ablation zone closer to real hepatic tumor,thus has more reliable effect to small hepatocellular carcinoma with diameter around 2 cm.The ultrasond has a great significance in RFA guidance,but it could not accurately define the border of ablation zone.

Objective To investigate the full-term newborn′s weight in Zhengzhou city and nearby areas around Zhengzhou in Henan province.Methods Each group newborn′s weight was divided with sex and city.We studied the regularity of full-term newborn′s weight,and examined the cause of the newborn′s weight rising.Results The average newborn′s weight in Zhengzhou was (3449.06?453.97) g,which in nearby areas around Zhengzhou was (3352.07?429.91) g.The average newborn′s weight in Zhengzhou was 86.97 g higher than other cities (P

BACKGROUND: Thermotherapy has achieved remarkable therapeutic effect on patients with esophageal cancer. However, there are still some problems which cannot be answered today, such as the damage of esophageal mucosa during deep thermotherapy when metal stent is placed in esophagus. OBJECTIVE: To study the metal stent-caused damages to esophageal mucosa of pigs in radiofrequency hyperthermia. DESIGN, TIME AND SETTING: Observational study which was performed in the Department of Tumor, Affiliated Hospital of Luzhou Medical College from October 2004 to January 2005. MATERIALS: 13 pigs weighing 35-40 kg were used in this study. Esophagus stent of memory alloy with membrane was provided by Zhiye Medical Apparatus Institute of Changzhou, China METHODS: Five points were located for measurement, i.e. the middle of the stent, the exit of the stent, 2 cm and 4 cm a distance from the exit and 4 cm from the entrance. Esophagus of 13 pigs was heated for 30 minutes by SR-1000 radiofrequency hyperthermia machine in frequency of 40.82 MHz, pole plate of 25 cm Ⅱ 25 cm and power of 500-700 W. MAIN OUTCOME MEASURES: The esophageal mucosa was observed with naked eyes. And optical microscopy was used to observe the changes of the esophageal mucosa. RESULTS: Because one pig died of anesthesia and there were troubles of thermal detector lines in 4 pigs, only 8 pigs were included in the final analysis. Level of damage of esophageal mucosa on five temperature checkpoints was observed from grade 0 to 1 in naked eyes, and the difference of damaged level between five checkpoints was not obvious in statistics (H=2.0, P=0.157). Level of the damage was observed from grade 0 to 2 in microscope, and the difference was not obvious in statistics too (H=2.734, P=0.255). CONCLUSION: Influence of the metal stent on esophageal mucosa can be neglected in radiofrequency hyperthermia, and metal stent does not cause obvious mechanical damage or thermal damage to esophageal mucosa of pigs. It is safe and feasible to carry out radiofrequency hyperthermia on placed metal stent esophagus.

OBJECTIVETo test the different contrctile responses of extracellular nucleotides, such as ATP, UTP and nucleotide uridine adenosine tetraphosphate (Up4A) in gastric longitudinal muscle (LM) and circular muscle (CM). Examined the effect of P2X and P2Y receptor antagonists (in this study, we used IP5I and suramin) and cyclooxygenase inhibitor (indomethacin) on Up4A induced contractile responses in LM and CM.

METHODSThe rats were sacrificed and the stomachs were opened to gain LM and CM. Using organ bath system to assess contrctile responses of smooth muscle.

RESULTSUp4A could induce contractile responses in both CM and LM, which were similar with ATP and UTP. IP5 did not attenuate Up4A could induce contractions in both LM and CM, but suramin and indomethacin significantly inhibited Up4A contraction in CM, but not in LM.

CONCLUSIONOur results suggest that extracellular nucleosides and their inhibitors induce different responses between LM and CM.

Adenosine Triphosphate ; pharmacology ; Animals ; Dinucleoside Phosphates ; pharmacology ; Indomethacin ; Muscle Contraction ; Muscle, Smooth ; physiology ; Nucleotides ; pharmacology ; Rats ; Suramin ; Uridine Triphosphate ; pharmacology

OBJECTIVE To investigate the rescue and treatment of critical children with tracheobronchial foreign body. METHODS From June 2011 to June 2015,there were 2489 children with tracheobronchial foreign bodies treated in Children's Hospital of HeBei Province, among which 11critical children who were rescued as soon as they came to the hospital. The clinical data of the 11critical children were analyzed. RESULTS All the 11 critical cases endured dyspnea of third degree or more severe and presented severe hypoxia, in which 2 children had been performed tracheal intubation before they came to the hospital and 1 child even showed the symptom of respiratory and cardiac arrest. Among these critical cases, the foreign body was removed directly without anesthesia in 1 child. The other 2 children with severe pneumothorax, mediastinal emphysema and subcutaneous emphysema in neck and chest area were treated by excision and drainage of emphysema firstly, and then the foreign bodies were extracted through bronchoscope after general anesthesia. The another 8 children were performed operations of extraction of bronchial foreign body and then the foreign bodies were taken out. All the 11 critical children were rescued successfully and no death cases happened. CONCLUSION Rapid diagnosis and rapid removal of foreign bodies is the key to save the lives of critical children with tracheobronchial foreign bodies.

Objective To investigate the effect of idarubiein to imensify the MAC (IMAC) as preparative regimen for autologous peripheral blood stem cell transplantation(APBSCT)in acute myeioid leukemia.Methods Fourteen patients with acute myeloid leukemia who underwent APBSCT were analysed. IMAC was used as preparative regimens.Results All patients were engrafted successfully.The disease-free survival could be Ben in 8 cases(57.1%),the median disease-free survival duration were 26(8-72)months and no treatment-related mortality was present.Conclusion This study suggested that addition of Idarubicin to the MAC preparative regimens Was safe,effective and feasible for patients with acute myeloid leukemia,and may improve disease-free survival and overall survival.

OBJECTIVETo investigate the association of IL-1beta+3953, TNFbeta+252 and IL-10-592 polymorphisms with serum lipoprotein levels in Chinese Han population in Guangdong Province.

METHODSA total of 428 individuals of Han nationality from Guangdong Province were enrolled in this study. The genotypes of IL-1beta+3953, TNFbeta+252 and IL-10-592 sites were detected using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The serum concentrations of total cholesterol (TC), TG, low-density lipoprotein (LDL), high-density lipoprotein (HDL), and very low density lipoprotein (VLDL) were determined using an automatic biochemistry analyzer.

RESULTSThe concentrations of TC and LDL in individuals of TNFbeta+252GA genotype was significantly higher than that in TNFbeta+252AA genotype (t=-2.406, P=0.017; t=-2.516, P=0.012). The concentration of LDL in IL-10+3953CT genotype was significantly higher than that in IL-10+3953CC genotype (2.743-/+0.723 vs 2.502-/+0.699 mmol/L, t=-2.639, P=0.009). No significant differences were found in TG, TC, HDL, LDL and VLDL between the 3 genotypes (P>0.05).

CONCLUSIONThe polymorphisms of proinflammatory cytokines are related to the serum lipoprotein level in these subjects. The T allele in IL-1beta+3953 and the G allele in TNFbeta+252 are positively correlated to dyslipidemia.

Adult ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; genetics ; China ; Female ; Gene Frequency ; Genotype ; Humans ; Interleukin-10 ; genetics ; Interleukin-1beta ; genetics ; Lipoproteins ; blood ; Male ; Middle Aged ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Transforming Growth Factor beta ; genetics ; Young Adult