Objective The predictive indexes which affect early neurological deterioration ( END) of patients with acute la-cunar stroke still remain unclear .The purpose of the article was to investigate the correlation between the location and numbers of cere -bral microbleeds (CMBs) and END in patients with first-onset lacunar stroke. Methods 217 patients with acute lacunar stroke hos-pitalized in Anhui Provincial Hospital within 24 hours after occurrence from Mar 2009 to May 2012 were prospectively enrolled .All pa-tients underwent susceptibility-weighted imaging MRI right after admission , followed by the investigation on the relationship of the loca-tion and numbers of CMBs and END . Results END occurred in 76 (35.0%) patients.Among these patients, there were 33 positive cases with CMBs (43.3%).There were no significant difference in END incidence between positive group and negative group (P=0.173).In the comparison of the numbers of CMBs foci , patients with more than 5 foci were more prone to END (P=0.005).Logistic regression analysis showed there was relation between CMBs foci numbers>5 and END (OR=3.14, 95% CI: 1.22 ~8.13), and there was no relation between CMBs foci numbers≤5 and END ( OR=1.12, 95%CI:0.53~2.37)as to CMBs negative patients.No signifi-cant relationship was found in CMBs location and END occurrence ( P>0.05). Conclusion The distribution of CMBs foci has nothing to do with early neurological fluctuation .However , more than 5 CMBs foci might be the independent prediction cause of END .

Objective To study the relationship between serum carbohydrate antigen 19-9 (CA19-9) and blood glucose level in patients with type 2 diabetes (T2DM).Methods Totally 784 T2DM patients and 197 healthy controls were enrolled in this study.Age,duration,body mass index (BMI),systolic blood pressure (SBP),diastolic blood pressure (DBP),levels of fasting blood glucose (FBG),postprandial blood glucose (PBG),hemoglobin A1c (HbA1c),total cholesterol (TC),triglyceride (TG),low-density lipoprotein cholesterol (LDL-C),high density lipoprotein cholesterol (HDL-C),blood uric acid,C peptide and CA 19-9 were recorded.Patients were divided into different groups according to the levels of HbA1 c and CA 19-9.The relationship between CA19-9 and influencing factors was analyzed.Results CA19-9 level was increased in T2DM patients compared with healthy controls [(22.08±14.94) U/mlvs.(10.24±6.31) U/ml,t=12.10,P＜0.001].The levels of SBP,DBP,FBG,PBG,C peptide,TC,TG,LDL and UA were higher and HDL C level was lower in T2DM patients than in healthy controls (all P＜0.05).The levels of FBG,PBG and CA19-9 were increased along with the increase of HbA1c level in T2MD patients with HbA1c level under 6.5％,T2MD patients with HbA1c level from 6.5％ to 7.5％,T2MD patients with HbA1c level over 7.5％ [FBG:(6.36±3.70) mmol/L,(9.01±4.01) mmol/L,(11.96±4.73) mmol/L;PBG:(9.69±3.21) mmol/L,(12.18±5.54) mmol/L,(15.27±5.08) mmol/L; CA19 9 (14.33±11.72) U/ml,(18.76±14.39) U/ml,(25.96±17.52) U/ml,respectively,all P＜0.05].The levels of FBG,HbA1c and pancreatic cancer incidence were higher in patients with elevated CA19-9 than with normal CA19-9 [(11.71±5.48)mmol/L vs.(9.78±4.38)mmol/L,(7.49±4.12)％ vs.(6.33±3.70)％,0％ vs.7.8％,t=-3.51,2.55,x2=83.58,allP＜0.05].Pearson correlation analysis showed that CA19-9 level was positively correlated with the levels of HbA 1 c and FBG in T2DM patients (r=0.281,0.134,both P＜0.05).Multiple Logistic regression analysis showed that the levels of FBG and HbA1c were correlated with the increase of CA19 9 in T2DM patients(OR=0.801,0.947,P=0.019,0.026).Conclusions Serum CA19-9 level is significantly increased in T2DM patients compared with the healthy people.Serum CA19-9 level is correlated with blood glucose control.

A process of preparing bovine cortical bone in order to form materials suitable for biomedical xenograft implants was described. Fresh bone samples cut from the middiaphyseal region of bovine femora were obtained from a local slaughterhouse. The bovine bone collagen matrix (BBCM) of various shapes fabricated from bovine bone by defatting and deproteination procedure may be implanted surgically for various purposes. The bone cubes were first defatted in a mixture of defatting agent; subsequently, the samples were extracted to release noncollagenous proteins, followed by digestion using a proteolytic enzyme to remove the telopeptide portions of collagen and residual noncollagenous proteins. Finally,the samples were dried in vacuum, packed and sterilized by gamma irradiation. The bone specimens were characterized by a suite of analytical techniques involving FTIR spectroscopy, X-ray diffraction spectroscopy, differential scanning calorimetry (DSC), uniaxial tension mechanical tests and scanning electron microscopy (SEM). The result showed that BBCM occurred as a white structure with suitable porosity. It contains reasonable proprotion of mineral and organic components in the original osseous architecture of the bovine bone, which is beneficial to keeping the mechanic property and weaker immunogenicity; therefore, it can serve as a potential bone implantable material and extracellular matrix material in bone tissue engineering.
Animals ; Biomimetic Materials ; chemistry ; therapeutic use ; Bone Substitutes ; chemical synthesis ; chemistry ; Bone and Bones ; chemistry ; Cattle ; Collagen ; chemistry ; Extracellular Matrix ; chemistry ; Tissue Engineering ; methods

In bone tissue engineering, a highly porous artificial extracellular matrix or scaffold is essential to the attachment, proliferation and differentiation of bone cells (osteoblast, osteoclast and osteocytes) and the formation of bone tissue. However, conventional scaffold materials for bone tissue engineering proved less valuable for actual applications because they lack mechanical strength, interconnected channel network, and controllable porosity or channel size. Therefore,to explore the ideal scaffold materials is one of the popular studies on current bone tissue engineering. In this paper, we review, the application and advancement of a newly-developed technology generally known as rapid prototyping (RP) techniques in bone tissue engineering.
Bone Substitutes ; Bone and Bones ; Cell Differentiation ; Cell Division ; Cells, Cultured ; Extracellular Matrix ; Humans ; Osteoblasts ; cytology ; Porosity ; Tissue Engineering

BACKGROUND:To reduce the amount of bleeding and the amount of hemoglobin after total knee replacement has been a key project in the clinical research in the division of bone and joint. Currently, ice therapy has been widely used in the clinic for tissue sweling and pain due to various physical and chemical factors. OBJECTIVE:To investigate the risk factors of postoperative hemoglobin after total knee replacement and discuss the effects of ice intervention. METHODS: 240 patients with osteoarthritis based on the random draw principles were equaly divided into the treatment group and the control group. The general information, disease status, diagnosis and treatment and prognosis of the two groups were investigated. Al patients were actively subjected to artificial total knee replacement. On the basis of the treatment in the control group, the treatment group received ice intervention at 2 hours after replacement for 7 consecutive days. RESULTS AND CONCLUSION:The postoperative hemoglobin decrease occurred in 34 patients, with the incidence of 14.2% among 240 patients at 7 days after replacement. Multivariate logistic regression analysis results showed that age, no ice treatment, body mass index were the main risk factors for hemoglobin decrease after total knee replacement (P < 0.05). Compared with the control group, the postoperative hemoglobin values of the treatment group were significantly higher (P < 0.05). Hemoglobin decrease values, total blood loss, blood transfusion rate, blood transfusion amount, and pain score at 3 and 7 days after replacement were significantly lower in the treatment group than in the control group (P < 0.05). The knee function excelent and good rate was 96.7% in the treatment group, and 95.8% in the control group, which showed no significant difference (P > 0.05). Results verify that clinical application of total knee replacement facilitated the knee recovery in patients with osteoarthritis, but hemoglobin decrease and bleeding existed. Active ice intervention can reduce the risk and relieve postoperative pain.