Child ; Dental Occlusion ; Humans ; Tooth Eruption

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.

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%

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

BACKGROUND:At the beginning of the 20th century a strength training method in the backward direction appeared:hip stress strength training method. There are many articles focusing on the concept, function, effect and mechanism of this training method. So far, relevant research has formed a unique branch of special strength training research directions.
OBJECTIVE:To conclude the concept, function, effect, features and mechanisms of hip stress technical strength training through the systematic analysis of literature concerning hip stress strength training. METHODS:CNKI (1998/2010) and Wanfang databases were searched by the first author for relevant articles. The keywords were“hip stress, strength training, trajectory control, exercise training, muscle strength, knee, physical fitness, bone”in Chinese and English. The obtained data were summarized using contrast method and logic analysis method.
RESULTS AND CONCLUSION:Total y 90 papers were retrieved, and final y 34 papers were included. The results showed that the hip technical strength training method is the most effective training method currently to cultivate the running, jumping and throwing back pedaling force after hip extension forces. It has a new training idea and special training equipments, which can effectively solve many sports difficulties in strength training and technical training and has the vital significance for the high-level sports training, skil s assessment and sports teaching. Hip stress special technical strength training research has formed a special research branch of special strength trainings, which wil play a more significant research role.

Objective To study the influence and mechanism of seawater immersion on endothelial cell injury sustained by burn firearm combined injury to improve the early therapeutic efficacy. Methods The dogs with burn firearm combined injury were randomly divided into two groups: immersion group and control group. In immersion group, the dogs were immersed in seawater for 4 hours, then taken out from seawater. Blood samples were collected from central vein at 4 h, 7 h, 10 h, 20 h and 28 h following wound for the detection of changes of the circulating endothelial cells (CEC) and von Willebrand Factor (vWF). The same procedures except immersion were performed in the control group. Results The levels of CEC and vWF elevated at 4 h and 7 h following wound in control group( P

Objective To investigate the effect of seawater immersion on the hemostatic function of endothelial cells in dogs sustained burn firearm combined injury and the mechanisms. Methods Dogs with burn firearm combined injury were randomly divided into two groups: immersion group and control group. Dogs in immersion group were immersed in seawater for 4 h, and then taken out from seawater. Blood samples were collected from central vein before wound, immediately after immersion, at 4, 7, 10, 20, and 28 h after immersion to detect the changes in circulating endothelial cells (CEC), tissue type plasminogen activator (t PA), plasminogen activator inhibitor (PAI), and thromboxane B 2/6 keto prostaglandin F 1? (TXB 2/6 K PGF 1? ). Dogs were sacrificed at 28 h after wound for the purpose of pathological examination of the lung tissue. The indices detected except seawater immersion in the control group were the same as those in the immersion group. Results In the control group, the levels of CEC, PAI 1, and TXB 2/6 K PGF 1? increased, but the level of t PA decreased at 4 and 7 h after wound. However, in immersion group, the levels of CEC, PAI 1 and TXB2/6 K PGF1? kept increasing, but the level of t PA kept decreasing at 4, 7, 10, 20, and 28 h. Each index in immersion group from 4 h to 28 h after wound was significantly different from that in the control group ( P