Objective To observe the expression of SGK in decidua in patients with unexplained recurrent spontaneous abortion(URSA) and to investigate its role in the course of apoptosis.Methods The expression of SGK was detected by immunohistochemistry in decidua of URSA(abortion group,n =50) and normal first trimester pregnant women(control group,n =30).The apoptotic index was detected by TUNEL.Results Compared with the control group,the positive expression of SGK decreased significantly in the abortion group,and the difference was statistically significant(x2 =6.78,P ＜ 0.05).The average apoptotic index of the abortion group was (8.19 ± 3.58) ％,which was significantly higher than (2.87 ±1.07)％ of the control group(t =7.94,P＜0.05).Conclusion Intensive apoptosis,the decreasing positive expression rate of SGK in decidua cells may play critical roles in URSA.

Objective To investigate the efficiency of autologous transplantation of peripheral blood stem cell for treatment of patients with chronic lower limb ischemia. Methods Forty-six patients with chronic lower limb ischemia were treated by autologous peripheral blood stem cell transplantation. Results Fortytwo patients had pain relief on legs, and cold and cool feelings in lower limbs disappeared. Thirty-five patients had pain relief on feet, and 29 of them had disappearance of cold and cool feelings. Due to necrosis in middle and lower part of leg, 4 patients took extremity amputation after 4 weeks of the transplantation. In the 42 patients who kept their legs 3 months after transplantation, the distance of anginacruris extended from (87. 45 ±41.22) m to (348.52 ± 147.24) m, skin temperature increased from(28.52 ±0.51 ) ℃ to(33.56±0.62) ℃ ,and ankle-brachial index (ABI) increased from(0.48 ±0.06)to(0.75 ±0.07). There were statistical differences, and the scores of the distance of anginacruris, skin temperature, and ABI after transplantation were better than before. six months after transplantation autobiography of lower extremity was used, and neonatal lateral vessels of different degrees were found in 37 patients. Conclusion Autologous transplantation of peripheral blood stem cell is a simple, safe, and effective method, especially in treating patients with lower limb ischemia in which no arterial reconstruction is feasible.

OBJECTIVETo analyze effects of fracture of processus styloideus ulnae on prognosis in the treatment of distal radial fracture of type C according to AO classification.

METHODSThis was a retrospective case-control study, and the information was got ten through case evaluation and follow-up, including sex, age, patient satisfaction, Gartland & Werley score and radiographic score. There were 76 patient treated with open reduction and plate fixation in People's Hospital Affiliated to Peking University from July 2006 to July 2011. All the patients were divided into two groups: no combination with fracture of processus styloideus ulnae (group A, 56 cases), combination with fracture of processus styloideus ulnae (group B, 20 cases). The patients in group A and B were treated with open reduction and internal fixation; however the fracture of processus styloideus ulnae was not fixed. The indexes such as clinical data, bone grafting, joint movement, Gartland & Werley score and radiographic score were compared between two groups.

RESULTSThe ulnaris pain of patients in group B was more obvious than that in group A. The local VAS, palmar and dorsal flexion degree of wrist joint, motion VAS, patients satisfaction score, radial and ulnar deviation degree, pronation and supination of forearm degree, Gartland & Werley score and radiographic score were separately 0.1 ± 0.1, (51.1 ± 1.9)°, (60.2 ± 1.9)°, 0.6 ± 0.1 (23.1 ± 0.9)°, (28.7 ± 1.3)° (81.5 ± 2.6)°, (68.2 ± 2.7)° 1.9 ± 0.3, 89.6 ± 12.3 in group A; and separately 0.3 ± 0.3, (51.4 ± 2.3)°, (66.6 ± 1.7)°, 0.5 ± 0.2, (24.5 ± 2.0)°, (26.9 ± 1.8)°, (80.3 ± 2.5)°, (70.3 ± 3.7)°, 1.2 ± 0.4, 92.5 ± 7.5 in group B; there were no statistical differences in above indexes between two groups.

CONCLUSIONWhether the distal radial fracture with a concomitant unrepaired ulnar styloid fracture or not exerts no influence on mainly outcomes including function, radiography and motion of the wrist.

Bone Plates ; Case-Control Studies ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged ; Prognosis ; Radius Fractures ; surgery ; Retrospective Studies ; Ulna Fractures ; surgery

Objective To quantify the amplitudes of lung tumor motion during free-breathing using four dimensional computed tomography (4DCT), and seek the characteristics of tumors with large motion. Methods Respiratory-induced tumor motion was analyzed for 44 tumors from 43 patients. All patients un-derwent 4DCT during free-breathing before treatment. Gross tumor volumes (GTV) on ten respiratory phases were contoured by the same doctor. The eentroids of GTVs were autoplaeed with treatment software (ADAC Pinnacle 7.4f), then the amplitudes of tumor motion were assessed. The various clinical and anatomic fac-tors associated with GTV motion were analyzed. The characteristics of tumors with motion greater than 5 mm in any direction were explored. Results The tumor motion was found to be associated with T stage, GTV size, the superior-inferior (SI) tumor location in the lung, and the attachment to rigid structures such as the chest wall, vertebrae or mediastinum. The motion over 5 mm was observed in ten tumors, which were all lo-cated in the lower or posterior half of the lung, with the greatest motion of 14.4 mm. For 95% of the tumors, the magnitude of motion was less than I 1.8 mm, 4.6 mm and 2.7 mm along the SI, anterior-poste-rior (AP) and lateral directions, respectively. Conclusions Tumor motion due to breathing is associated with tumor location, volume, and T stage. The greatest motion was in the SI direction for unfixed tumor in lower-lobe, followed by tumor in upper-lobe posterior-segment.

Objective To investigate the clinical significance of myasthenia gravis (MG) associated autoantibodies.Methods Titin,ryanodine receptor (RyR)and acetylcholine receptor (AChR) antibodies were examined in the sera of 74 myasthenia gravies patients by ELISA.Results AChR,Titin, RyR antibodies were detected in 77.0% (57/74),39.2% (29/74) and 32.4% (24/74) of the MG patients,respectively.For thymoma MG,AChR,Titin and RyR antibodies were detected in 76.2% (16/21),71.4% (15/21) and 52.4% (11/21) respectively.For late onset MG,Titin and RyR antibodies were detected in 77.3% (17/22) and 50.0% (11/22) respectively.With respect to the modified Osserman classification,the positve rate for Titin and RyR antibodies is much higher in more severe patients (X~2= 16.094,P=0.001;X~2=11.226,P=0.011).Titin antibodies was significantly related with RyR antibodies (r=0.380,P=0.001).Conclusions Titin and RyR antibodies show high sensitivity for thymoma MG,and the combination of serological and radiological testing can increase both sensitivity and specificity in diagnosis of thymoma MG.The levels of the two antibodies may serve as important prognosis markers in MG.The induction of the immune response against Titin and RyR and the possible pathogenic effects of the two antibodies will be further studied.

Objective To explore the effect and mechanism of manganese superoxide dismutase (MnSOD): on H2O2-induced apoptosis of PC12 cells. Methods PC12 cells were transfected with sense and antisense human MnSOD by lipofectin, and exposed to 50 mmol/L H2O2, MTT assay, low cytometry and Hoechst stain were used to study the cytotoxicity. Results MnSOD activity increased by 130% in cells transfected with sense MnSOD cDNA, and was decreased by 67% in cells transfected with antisense MnSOD cDNA as compared with controls. Conclusion Antisense MnSOD can offer protection against H2O2-induced apoptosis in PC12 cells. The damage of the mitochondria may be attributed to the cytotoxicity of H2O2 against PC12 cells, which induces imbalance of cellular redox and apoptosis.

Objective To explore the effect and mechanism of manganese superoxide dismutase (MnSOD): on H2O2-induced apoptosis of PC12 cells. Methods PC12 cells were transfected with sense and antisense human MnSOD by lipofectin, and exposed to 50 mmol/L H2O2, MTT assay, low cytometry and Hoechst stain were used to study the cytotoxicity. Results MnSOD activity increased by 130% in cells transfected with sense MnSOD cDNA, and was decreased by 67% in cells transfected with antisense MnSOD cDNA as compared with controls. Conclusion Antisense MnSOD can offer protection against H2O2-induced apoptosis in PC12 cells. The damage of the mitochondria may be attributed to the cytotoxicity of H2O2 against PC12 cells, which induces imbalance of cellular redox and apoptosis.

cycles.

OBJECTIVETo explore the intersection and regulation mechanism of "efficacy-toxicity network" of Glycyrrhizae Radix et Rhizoma, Zingiberis Rhizoma and Aconiti Lateralis Radix Praeparata's action gene in the combination environment of Sini decoction with the network pharmacological method.

METHODThe gene interaction network of Aconiti Lateralis Radix Praeparata, Glycyrrhizae Radix et Rhizoma, Zingiberis Rhizoma were mined and established with Cytoscape software and Agilent literature search plug-in. The "efficiency-toxicity network" intersection of Aconiti Lateralis Radix Praeparata was formed according to its effects in anti-heart failure, neurotoxicity and cardiotoxicity. The target genes were clustered with Clusterviz plug-in. And the possible pathways of the "efficacy-tox- icity network" intersection of Glycyrrhizae Radix et Rhizoma, Zingiberis Rhizoma and Aconiti Lateralis Radix Praeparata were forecasted in DAVID database.

RESULTThere were five genes related to neurotoxicity, cardiotoxicity and anti-heart failure function of Aconiti Lateralis Radix Praeparata, namely AKT1, BAX, HCC, IL6 and IL8, which formed 47 nodes genes in the "efficiency-toxicity network" intersection of Aconiti Lateralis Radix Praeparata. There were 29 and 27 coincident genes in the "efficiency-toxicity network" of Glycyrrhizae Radix et Rhizoma, Zingiberis Rhizoma and Aconiti Lateralis Radix Praeparata. There were 23 and 17 possible regulatory pathways.

CONCLUSIONIn the combination environment of Sini decoction, Glycyrrhizae Radix et Rhizoma and Zingiberis Rhizoma may regulate the efficiency-toxicity network of Aconiti Lateralis Radix Praeparata by influencing immune-inflammatory signaling pathway, apoptosis-autophagy signaling pathway, nerve cell and myocardial ischemia and hypoxia protection signaling pathways.

Aconitum ; chemistry ; toxicity ; Drugs, Chinese Herbal ; chemistry ; toxicity ; Gene Regulatory Networks ; drug effects ; Humans ; Rhizome ; chemistry ; toxicity

OBJECTIVETo explore the genetic model of cerebral infarction and to examine the relationship between cerebral infarction and genetic factor.

METHODSA matched case-control study including 112 pairs pedigrees was carried out. Using the Li-Mantel-Gart method and the Falconer method to estimate the segregation ratio and the heritability of cerebral infarction.

RESULTSThe prevalence rate of the first-degree and the second-degree relatives in cases was significantly higher than that in controls. The segregation ratio was 0.143 7 (0.113 0 - 0.174 4), significantly lower than 0.25, which showed that cerebral infarction did not possess the characteristics of monogenetic model. The results showed that the heritability of the first-degree and the second-degree relatives were 47.84% and 40.95% higher in male's than in female's.

CONCLUSIONCerebral infarction was a polygenetic disease, and the genetic factors played an important role in the occurrence of cerebral infarction, especially in males.

Aged ; Case-Control Studies ; Cerebral Infarction ; epidemiology ; genetics ; China ; epidemiology ; Family Health ; Female ; Genetic Predisposition to Disease ; Humans ; Male ; Middle Aged ; Prevalence