Child ; Dental Occlusion ; Humans ; Tooth Eruption

A new method for the extraction of tea-polypbenols (TP ) from tea using AlCl3 as precipitating agents was proposed. Compared with tbe traditional extraction method using organic solvents, it is shown that the new method is simple and can be operated easily. The extraction rate of TP by the new method could reach 10.5% and the content of the effective ingredients of TP could reach over 99.5%

In vitro experiment, results showed the that the LH secretion of adenohypophysis incubated with Ginsenosides ( G ) and Pantoc-rine ( P ) was significantly increased, similar to the exciting effect of LRH which stimulats LH secretion. By addition of G or P and Indomethacin (an inhibitor of PGs synthesis) at the same time, however, the LH secretion was significantly decreased. It appears that PGs may be involved in the regulation of the exciting effect of G and P on LH secretion. The experiment in vivo also demonstrated that in healthy young male rats injected with P by S.c.,thetestosterone content in plasma had significant increase, that the binding capacity of testicular tissue to 125I-HCG (receptor function) did not change clearly.

Animals ; Cell Adhesion Molecules ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; E-Selectin ; drug effects ; Humans ; Intercellular Adhesion Molecule-1 ; drug effects ; Phytotherapy

Adolescent ; Adult ; Female ; Histiocytic Necrotizing Lymphadenitis ; diagnosis ; therapy ; Humans ; Lymph Nodes ; Male ; Middle Aged ; Neck ; Young Adult

Child ; Extraoral Traction Appliances ; Humans ; Molar ; Orthodontic Wires ; Orthodontics, Interceptive ; instrumentation ; Prognosis ; Time Factors ; Tooth Crown ; surgery ; Tooth Eruption, Ectopic ; surgery ; therapy ; Tooth Movement Techniques ; instrumentation ; methods

Atherosclerosis ; prevention & control ; Humans ; Vaccination

Objective To study the value of neoadjuvant chemotherapy in the treatment of cervical carcinoma. MethodsA clinical prospective study was carried out from Jan.1997 to Dec.2003,118 patients with cervical carcinoma were given two cycles of combined chemotherapy before operation(neoadjuvant chemotherapy group,group A).102 patients accepted surgery alone in our hospital from Jan.1997 to Dec.2003 were chosen as the comparison group(group B).Survival rate and complications were observed and analysed. Results5 year survival rate in group A was significantly higher than that in group B(P＜0.01),The 5 year survival rate was significantly higher in group A than in group B,despite of different pathological types,with or without radiochemotherapy(P＜0.05).The recurrent rate was lower in group A than that in group B,which show significant difference in the 5 year recurrent rate(P＜0.05). ConclusionNeoadjuvant chemotherapy is an effective method for the treatment of cervical carcinoma in early stage.Because of satisfactory short-term control rate,excision rate,long-term survival rate and low recurrent and metastatic rate,neoadjuvant chemotherapy is worth popularizing in clinical treatment.

Objective To study the influence of seawater immersion on hemostatic function after burn in dogs. Methods Twenty healthy adult mongrel dogs of beth sexes weighing 12-15 kg were randomly divided into two groups: immersion group(n=10) and control group(n=10). The animals were anesthestized with 3% pentobarbital 30 mg?kg~(-1) i.v., intubated and mechanically ventilated. 5F Swan-Ganz catheter was placed via right internal jugular vein. 10% of the skin on the back was burnt(second degree). In immersion group the animals were immersed in seawater containing salt 25.3 g?L~(-1)(pH8.1, T21-23℃) with head and neck kept above water for 4h. In control group the animals suffered second degree burn of same area without being immersed in seawater. Blood samples were taken from Swan-Ganz catheter before burn(baseline)and 4,7,10,20,28 h after burn for determination of(1) circulating endothelial cell(CEC) count, (2)tissue-type plasminogen activator(t-PA), (3) plasminogen activator inhibitor(PAI) and (4) thromboxane B_2/6-keto-prostaglandin F_(1?)(TXB_2/6-k-PGF_(1?)). At the end of the experiment lung tissue was obtained for microscopic examination. Results The blood CEC count, PAI-1 level and TXB_2/6-k-PGF_(1?) ratio significantly increased while t-PA level significantly decreased at 4 h after burn in control group but at 4-28 h after burn in immersion group. The differences between the two groups were significant. Microscopic examination of the lung showed some thrombi in immersion group. Conclusion Burn causes acute damage to the endothelial cells of the whole body and disorder of hemostasis. They are more severe and last longer after seawater immersion.