Carcinoma in Situ ; metabolism ; pathology ; Carcinoma, Endometrioid ; metabolism ; pathology ; Cystadenocarcinoma, Serous ; metabolism ; pathology ; Endometrial Neoplasms ; metabolism ; pathology ; Female ; Humans ; Tumor Suppressor Protein p53 ; metabolism

DNA, Neoplasm ; analysis ; Female ; Flow Cytometry ; Humans ; Hydatidiform Mole ; diagnosis ; genetics ; In Situ Hybridization, Fluorescence ; Microsatellite Repeats ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Pregnancy ; Triploidy ; Uterine Neoplasms ; diagnosis ; genetics

Adult ; Aged ; Erythrocyte Indices ; Hemorheology ; Humans ; Male ; Middle Aged ; Silicosis ; blood

Objective To evaluate mid-term clinical and radiographic outcomes associated with cementless total hip arthroplasty(THA) in a consecutive series of patients with osteonecrosis of the femoral head. Methods This study examined the mid-term (equal to or more than 5 years) results of THA. From January 1998 to March 2001, a series of 71 patients (80 hips) who had undergone THA with cementless components in our hospital were involved in this study. All patients were evaluated both clinically and radiographically. Clinical outcomes were evaluated according to Harris evaluation score. Components migration, bone changes around the implant, the polyethylene wear rate and direction of the acetabular polyethylene wear were measured radiologically. Kaplan-Meier analysis was performed to evaluate the survival of the femoral and acetabulum components. End point was radiographical loosening or revision of the acetabular component, and revision of the femoral component for any reason. Results 62 hips in 54 patients were followed up at least 5 years. The mean Harris hip score improved from preoperation (44.0?8.4) points to (92.4?5.7) points at the time of final follow-up. No component was seen to be loose radiographically or had been revised because of any reason at the time of final follow-up. Only one focal area of pelvic osteolysis in one patient and twelve small focal areas of femoral osteolysis in another patient were identified. The mean linear wear rate was (0.125?0.074) mm/year. When loosening was used as the end point for failure, the survival rate of the acetabular and femoral components was 1.0 (95% confidence interval, 0.98 to 1.00) in both groups. Conclusion Cementless THA in patients with osteonecrosis of the hip had a satisfactory clinical and radiographic outcome at a minimum of five years follow-up. Because polyethylene wear and osteolysis can not avoided, radiographical follow-up for cementless components is very important.

To determine the regulatory effect of ? opioid receptor stimulation on ? adrenoceptor signaling and its underlying mechanism, single ventricular myocytes were isolated from the heart of rat subjected to chronic hypoxia for 4 weeks. The electrically induced [Ca 2+ ] i transient were measured using a spectrofluorometric method. RT PCR was used to determine the mRNA of ? opioid receptor, and Western blot was used to determine the Gi and Gs protein. ? adrenoceptor stimulation with isoproterenol increased the amplitude of the electrically induced [Ca 2+ ] i transient in myocytes of normoxic rats. U50488H, a selective ? opioid receptor agonist, significantly inhibited the effect of isoproterenol. In the heart of chronically hypoxic rats, the inhibition of U50488H was blunted. RT PCR revealed no significant change in mRNA of ? opioid receptor. Western blot showed no change in Gi protein. While biologically active Gs small protein decreased significantly. The results indicate that the negative modulation of ? opioid receptor on ? adrenoceptor is attenuated in the heart of chronically hypoxic rat. The decrease in Gs protein may be partially responsible for the attenuation.

OBJECTIVE:To improve the accuracy of the Cetirizine hydrochloride syrup pediatric dose for children. METH-ODS:The dosage of Cetirizine hydrochloride syrup for children with chronic urticaria was accurately measured and compared with before and after pharmacists’intervention. RESULTS:The dosage before and after pharmacists’intervention was significantly high-er than prescribed dosage,the dosage after intervention was lower than before intervention,the differences were statistically signifi-cant(P<0.05). CONCLUSIONS:It is commonly existed that the dosage to children is higher than the prescribed dosage. It is sug-gested that doctors should strictly follow the printed label to make a prescription,pharmacists should strengthen the guidance and in-tervention on medication,and pharmaceutical manufacturers can manufacture suitable Cetirizine hydrochloride preparations special-ly for children to improve drug compliance and dosage accuracy.

Background The application of femtosecond laser in the corneal refractive surgery has made great progression recent years,but the morphology characteristic of corneal stroma surface after making-flap of femtosecond laser is closely concerned.Objective This study was to analyze the influence of photodisrnption of femtosecond laser on the corneal stroma surface and to investigate the effect of different laser pulse energy on the sudace ultrastructure of corneal stroma.Methods Corneal flaps were made with Visu Max femtosecond laser in 16 fresh porcine eyes with the pulse energy 125 nJ,155 nJ and 195 nJ respectively,and Moria-M2 microkeratome was used as control.Scanning electron microscopy (S-3400N Hitachi High-Technologies Corp) was used to observe and compare the ultrastructural characteristic of corneal stroma bed surface after making of corneal flap.Results The corneal strnma was evaporated and created a smooth surface when photodisrnption happened in the femtosecond laser group.Residual tissue bridges could been exhibited among the cavitation bubbles under the scanning electron microscope.Corneal strnma surface was smooth in the 125 nJ pulse energy group,but some tissue bridges still were visible.In the 155 nJ pulse energy group,much more smooth surface was seen without tissue bridges and mechanical damages on the corneal surface.However,the surface quality was worse and many tissue bridges and grooves existed in the 195 nJ pulse energy group.In addition,different sizes of slots caused by big cavitation bubbles were visible with the round and oval shape.The edges were regular and sharp with small damage zone after cutting with femtoseeond laser.However,many elevated fibril tissues could be seen on the corneal surface after making of flap with microkeratome.Many crimp and irregularity tissues were found on the surface.Blunt surface and indentations appeared in the cutting edge.Conclusions The mierostrueture of corneal stroma surface is more smoother after making of corneal flap with fentosecond laser in comparison with microkeratome.Pulse energy of 155 nJ is preferably during the making-flap with femtosecond laser.

BACKGROUND:In treatment of lumbar diseases, lumbar fusion therapy fails in 20%of cases and may lead to a series of complications such as pain, intervertebral space col apse, and delayed kyphosis deformity.
OBJECTIVE:To observe the effect of nucleus pulposus on interbody fusion after removing the anterior column disc of rabbit lumbar vertebra.
METHODS:A total of 36 healthy Japanese white rabbits were randomly and equal y divided into three groups, with 12 rabbits in each group. (1) Group of anterior longitudinal ligament+bone grafting:The L3 intercalated disc were wel exposed and anterior longitudinal ligament was stripped, obtaining a space to L3 intercalated disc, then the iliac bone was implanted. (2) Group of excising anterior 1/3 disc+bone grafting:After the anterior 1/3 disc tissue was excised, the iliac bone was implanted and sutured as Group of anterior longitudinal ligament+bone grafting. (3) Group of excising anterior 1/3 disc+fixation:After the anterior 1/3 disc tissue was excised, the iliac bone was implanted and the anterior column fixation was performed.
RESULTS AND CONCLUSION:Biomechanical testing showed that, at 12 weeks, the verticality tensile force in the group of anterior longitudinal ligament+bone grafting was obviously higher than other two groups, and have better fusion rate and could bear stronger force. Lateral position lumbar radiography showed that, the bone graft was absorbed and no new bone grew into the intervertebral space in the group of excising anterior 1/3 disc+bone grafting at 12 weeks;the formation of osseous bridge was found in the group of excising anterior 1/3 disc+fixation;complete bony fusion was found in the group of anterior longitudinal ligament+bone grafting. Histological examinations showed that, at 12 weeks, no bone tissue formed in the group of excising anterior 1/3 disc+bone grafting;a smal amount of bone trabecula and osteocytes were observed in the group of excising anterior 1/3 disc+fixation;a great quantity of newborn bone trabecula and osteocytes, remodeling lamel ar bone and canalis haversi structure were observed in the group of anterior longitudinal ligament+bone grafting. The stability of anterior column has notable effect on interbody fusion, after the anterior column disc is destroyed, the free nucleus pulposus may affect spinal fusion, so restoring the stability of the anterior column may promote interbody fusion, but stil cannot get solid spinal fusion.

Many clinical studies showed that the traditional Chinese medicine (TCM) syndromes in stroke have been dynamically changing since the onset of the disease. The changing of TCM syndromes can be attributed to multiple correlative factors such as age, sex, area distribution, underlying diseases, and constitutional factor. Data-driven methods involving multivariate statistical methods and descriptive approach have been used to analyze the regularity of dynamically changed TCM syndromes of stroke. However, expressing non-linear relationship between symptom or correlative factors and syndrome patterns by data-driven models is challenging. Model-driven methods involving artificial neural networks and Bayesian networks are new methods for studying the changes in TCM syndromes in patients with stroke. In this review, the authors summarized the studies of dynamically changed patterns of stroke syndromes based on data-driven methods and some clinical trials on TCM syndromes based on model-driven methods. Further studies are needed to improve the understanding of the dynamically changing regularity of TCM syndromes for stroke by using model-driven methods so as to develop appropriate and timely TCM treatments.

Objective:The study aims to screen chemosensitivity-associated proteins in colorectal carcinoma tissues by using two-dimensional gel electrophoresis (2-DE) and mass spectrometry,then identify some differentially-expressed proteins. Methods:The patients with advanced colorectal carcinoma were confirmed by clinical diagnosis. Fresh carcinoma specimens were collected by biopsy and preserved in liquid N2. The tissues were classified into two groups: high sensitivity group (HS) and low sensitivity group (LS) based on drug sensitivity test. The total proteins were extracted and separated by 2-DE. The images were composed, compared, and differentially analyzed to identify the proteins with differential expression in HS and LS groups. Then the differentially-expressed protein spots were incised from the gels and digested by trypsin. The peptide mass fingerprintings (PMF) was acquired after matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) and the proteins were identified by data searching in the Mascot database. Two proteins with differential expression were detected by Western blotting.Results:The 2-DE spectrum of HS and LS groups were established. Most protein spots were distributed in the area with pH 4-8 and relative molecular weight of (20-100)×10~3. The average number of the protein spots was 842±23 in HS group and 793±19 in LS group,respectively. The mean matching rate was 90.7%. The number of differentially-expressed dots between HS and LS group was 79.00±13.56. Thirty protein dots were selected for mass spectrum and bioinformatic analysis, and 9 proteins were identified. Conclusion:Colorectal carcinoma with different chemosensitivity had differential protein expression profiles. The differentially expressed proteins may be associated with chemosensitivity and could be used for prediction of chemosensitivity of colorectal carcinoma.