It is a promising method to use Liposomes as a carrier in the transdermal delivery system.Presently,llposomes,deformable liposomes,and ethosomes are in common use.The transdermal mechanism of the liposomes is to promote the velocity and the amount of the drugs of transdermal absorbance by affecting the keratoderma,acting on the skin appendages and changing the exterior characteristic of the drugs to make them permeate the skins.The Mechanism of the actions includes hydration.penetration,transforamation,and osmotic pressure driving effect,etc.The liposomes have been approved to have abroad prospect of application in the transdermal delivery system.

Objective To study the relationship between adiponectin and pulmonary function, age and gender in pa-tients with chronic obstructive pulmonary disease (COPD). Methods A total of 120 COPD patients with normal body mass index (BMI＜24 kg/m2 ) were selected and divided into acute exacerbation group (n=60) and stable group (n=60). And 60 healthy people were included as controls. There were equal numbers of male and female in each group. The serum level of ad-iponectin was sdetected by ELISA in there groups. The pulmonary function was collected,and values of FEV1/FVC, FEV1%predicted and RV/TLC were calculated in three groups. Results The serum level of adiponectin was significantly higher in acute exacerbation group than that of stable group and control group (P＜0.05). And the serum level of adiponectin was significantly higher in stable group than that of control group (P＜0.05). The serum levels of adiponectin were signifi-cantly higher in female patients than those of male patients (P＜0.05). The values of FEV1%, FEV1/FVC and FEV1%pre-dicted were significantly lower in acute exacerbation group and stable group than those of control group. The value of RV/TLC was significantly higher in acute exacerbation group and stable group than that of control group (P＜0.05). There was a negative correlation in serum levels of adiponectin, FEV1%predicted and FEV1/FVC between acute exacerbation group and stable group. But there was a negative correlation in serum levels of adiponectin and RV/TLC between these two groups ( P＜0.01). There was a positive correlation between serum level of adiponectin and age in male patients (r=0.943,P＜0.01). Con-clusion The serum level of adiponectin was significantly increased in patients with COPD, which suggested that adiponec-tin played an important part in proinflammatory and might be closely related with airway resistance. The serum level of adipo-nectin might exist gender differences and may be related with age.

Objective To study the distribution of drug resistance mutations and genotypes in the patients with chronic hepatitis B(CHB)in Taicang area.Methods 350 cases of CHB were selected and detect the drug resistance mutations and genotypes before using nucleoside(acid)anti-viral drugs.The correlation between the drug resistance mutations with genotypes in CHB patients was analyzed.Results Among 350 cases of CHB,the distribution of genotypes was genotype B in 172 cases,accounting for 49.14%, genotype C in 164 cases,accounting for 46.85%,genotype D in 9 cases,accounting for 2.57%,mixed genotype of B and C in 5 ca-ses,accounting for 1.42%,no other genotypes were found.In this study,the drug resistance mutations were detected in 58 cases,in-cluding 22 cases of genotype B,35 cases of genotype C and 1 case of genotype D,no drug resistance mutations were found in mixed genotype B and C.The drug resistance mutations sites:lamivudine resistance-associated mutations in 36 cases(10.28%),and adefo-vir resistance-associated mutations in 16 cases(4.57%)and entecavir associated resistance mutations in 6 cases(1.71%).Conclusion The genotype of CHB patients in Taicang area was dominated by genotype B and C,which accounting for more than 90% and the proportion of these two kinds of genotype is similar.The proportion of drug resistance mutation occurrence in the patients with gen-otype C is higher than that with genotype B.The lamivudine resistance-associated mutation has the highest proportion of drug re-sistance occurrence.It is suggested that the CHB patients with undefined medication history and recurrence treatment should be per-formed the drug resistance detection for selecting the targeted therapeutic schemes before accepting nucleoside(acid)drug therapy.

AIM: To investigate the effect of apoptosis and the change of mitochondial tansmembrane potential in A549 cells induced by thermochemotherapy of ADM. METHODS: ADM of different concentrations was directly applied to A549 cells cultivated in vitro. Cells maintained at 42.5 ℃ for 30 min. RESULTS: The inhibition of A549 cells was increased by thermochemotherapy of ADM significantly,and the cytoplasmic concentration of thermochemotherapy of ADM was significantly higher than that of chemotherapy (P

The DegP protein, functioning as both chaperone and protease, plays a critical role in degrading and removing denatured or damaged proteins in the cellular envelope during heat shock and other stresses. So far, several proteins have been identified as its natural targets. A carboxyle-terminal peptide derived from the PapG pilus, one of the in vivo substrates for DegP, has been shown to activate the protease. Nevertheless, neither the details nor the physiological implications of such activation have been studied. The evidence that DegP undergoes conformational changes upon binding the peptide derived from C-terminal sequence of pilus subunit PapG has been presented. It demonstrated that upon binding this peptide, detectable changes can be observed for both secondary and tertiary structures of DegP, as examined by CD spectroscopy. Gel filtration and dynamic light scattering analysis also revealed that the size of DegP becomes smaller to a minor extent. Moreover, both the hydrophobic surfaces and catalytic sites of DegP were found to expose slightly in the presence of the peptide. Upon peptide binding, a less flexible and more rigid conformation of DegP was obtained as analyzed by fluorescence anisotropy. The physiological implications of these observations for DegP are discussed.

In recent years, pharmacological researches of Chinese medicine have found that single Chinese exterior-relieving medicines such as Pueraria, Semen Sojae Praeparatum and Cimicifuga had very good anti-osteoporosis effect. They can significantly improve the bone mineral density (BMD) and bone mineral content(BMC), promote bone formation, and prevent bone absorption. Based on relative documents from home and abroad, this paper analyzed the current situation and provided new ideas and methods for prevention and treatment of osteoporosis.

Objective To investigate the effect of femoral design on anterior knee pain after patella reserving total knee arthroplasty. Methods From 15 January to 15 February 2002, 44 patients and 59 knees were followed up. Among these patients, 40 patients and 51 knees were included in this study, the rest cases were excluded for one or more of following factors. 1)Knee flexion was less than 80 degrees;2)Radiography showed that there were surgical errors such as: femoral component flexion more than 30, anterior femoral cortex notching, and patellar baja or alta. According to current generally accepted criteria, femoral components were classified as "Patella Friendly" group and "Patella Unfriendly" group. The percentage and severity of anterior knee pain was measured with patient visual pain index and Knee Society Functional Score System. Results The aforementioned two groups consisted of "Patella Friendly" group 21 knees and "Patella Unfriendly" group 31 knees. The average anterior knee pain score of "Patella Friendly" group and "Patella Unfriendly" group was respectively 1.58 (0-8) and 3.32 (0-6). The percentage of pain free patients of the two groups was 64% and 9%. There was significant statistical difference between the groups in terms of anterior knee pain score (t=4.642, P

Objective To investigate the coupling of tibial rotation and extension-flexion motion of knee joint both before and after total knee arthroplasty. Methods Six fresh-frozen left lower limbs from cadavers were tested using a modified Oxford motor rig for the knee joint. Anatomically based multiple loadings of the quadriceps mechanism were applied (Vastus medialis: 24.5 N, Vastus intermedius/rectus femoris: 29.4 N, Vastus lateralis: 19.6 N). The tibial rotation was tracked using a custom-made laser tracking device while the tibial-femoral flexion was measured with goniometer. Total knee arthroplasty (TKA) was performed using ?PFC-PS posterior cruciate ligament substituting knee system. Results Before TKA, when the knee flexed 10?, 20?, 30?, 60?, 90?, 120? and 150?, tibia rotated 5.1??2.3?, 9.3??3.3?, 10.2??4.8?,11.7??3.5?, 13.5??8.4?, 22.0??8.6? and 29.6??9.3? respectively. After TKA, tibia rotated -2.2??1.7?, -2.5??1.5?, -2.0??1.3?, 1.7??2.5?, 3.9??2.4?, 13.5??6.1? and 18.6??4.7? respectively (Tibial rotation was defined as 0? in knee extension; internal rotation as positive and external rotation as negative). Conclusion The tibial internal rotation is coincident with tibial-femoral flexion, its magnitude of tibial rotation varies in different degrees of knee flexion. The tibial internal rotatation is significant in early knee flexion(0? to 30?), then enters into a platform stage on knee bending from 30? to 90?, Once the knee bends over 90?, the tibia rotates internally markedly again, maximum internal rotation is achieved in fully flexion, probably due to relaxation of soft tissue. After TKA, in early flexion (0? to 30?) the external rotation occurs abnormally, but later on 30? to 150?, it rotates again intenally as normal.

O bjective To introducetheosteotomyofacetabularmedialwallas a techniqueto facilitateanatomicalimplantationand securefitofacetabularcupsfordysplastichips. Methods Eighteen hipreplacementswereperformedwithuseofan osteotomyofacetabularmedialwalltostabilizethecups in 17 dysplasticpatients. The patientswere aged from35-70 years, withan averageof51.4 year. Among all thedysplastichips,4 were oftypeⅠ,7 oftypeⅡ,4 oftypeⅢ,and 3 oftypeⅣ accordingtotheCrowe criteria. A Ranawat trianglewas drawn on theX-ray film, and a supposedoptimalrotatingcenterwas located.Bothofthehorizontaland verticaldistancesbetweenfemoralhead and supposedrotatingcenterwas decreasedsignificantlyafteroperation.Results With medialwallosteotomy,alltheacetabularcomponents wereplacedinthetrueacetabulum.The diametersoftheimplantedcupswere44-56 mm withan averageof 50.78 mm . Medialbony wallwas preservedwithan averagethicknessof9.5 mm . The horizontaldistance was 21.09 mm (12-40 mm )preoperativelyand 3.73 mm (-3-10.1 mm )postoperatively,therewas statistical difference(t=7.95,P

Objective To investigate the risk factors of death in patients with acute stroke in the neurological intensive care unit(NICU). Methods The clinical data of 137 patients with acute stroke in the NICU were induced. The risk factors were analysed by univariate and multi-variate Logistic regression analysis.Results There were 13 risk factors including age, coma, hyperpyrexia, pulmonary disease, atrial fibrilation/cardiac dilatation, stroke history, mechanical ventilation, brain midline shift, initial serum glucose, APACHEⅡscores, feeding tube, urethral catheter and concurrent pulmonary infection which had statistical significance between the death group and survive group,by univariate analysis(P