OBJECTIVETo investigate the effect of component I from agkistrodon acutus venomon (AAVC-I) the migration of human umbilical vein endothelial cells (HUVECs), and to elucidate the possible anti-angiogenic mechanism of AAVC-I.

METHODSThe effect of AAVC-I on the migration of HUVECs which was cultivated in vitro and treated with AAVC-1 at four concentrations: 0, 20, 40, 80 microg/ml, was observed by methods of scratch wound-healing and Transwell assay. The expression level of mRNA and protein of P-selectin and intercellular cell adhension molecule-I (ICAM-1) were examined by RT-PCR and Western blot assay.

RESULTSCompared with the blank group, the migration ability of HUVECs in each AAVE-I treated group was reduced in a dose-dependent manner, and the expression level of the mRNA and protein of P-selectin and ICAM-1 were decreased.

CONCLUSIONAAVC-I inhibits the migration of endothelial cell, which is acted by down-regulation of the expression content of mRNA and protein of P-selectin and ICAM-1.

Cell Movement ; drug effects ; Cells, Cultured ; Crotalid Venoms ; pharmacology ; Down-Regulation ; Human Umbilical Vein Endothelial Cells ; drug effects ; Humans ; Intercellular Adhesion Molecule-1 ; metabolism ; P-Selectin ; metabolism ; RNA, Messenger

0.05).The different tilt angles impacted patients' fear psychology(?2=8.038,P=0.018).The order of the extent of children's fear psychology represented from low to high at the angle of 60?,70? and 80?,respectively.The extent of the children's fear psychology had positive correlation with the tilt angle(r=0.669,P=0.002).Conclusions The tilt test angle does not affect the positive rate of HUTT and the hemodynamics in children undergoing HUTT with angles from 60? to 80?.The children at the tilt angle 60? had less fear than at the angle of 70? or 80?.The 60? tilt angle of HUTT in children is recommended in the clinical practice.

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.

OBJECTIVETo explore the surgical method and clinical curative effect of Ilizarov technique combined with limited surgical treatment for neurotrophic malnutrition equinovarus accompanied with weight-bearing area ulcer.

METHODSFrom July 2004 to December 2011, 21 cases of neurological disorders equinovarus with skin ulcer in weight-bearing area were treated including 14 males and 7 females with an average age of 21.3 years old ranging from 8 to 32 years. Among them,19 cases with talipes equinovarus were on account of spina bifid and 2 cases on account of spinal cord injury of lumbar sacral segment. Nine cases were on the left foot and 12 cases were right foot. The ulcer area in out-below side of the fifth metatarsal bone was in 6 cases, in basement of the fifth metatarsal bone in 5 cases,in lateral of calcaneocuboid joint 2 cases, and in lateral of subtalar joint in 8 cases. Surgical procedure included plantar medial release technique, tendo-chilles lengthenning, and three-joint partial osteotomy. During operation,the skin and soft tissue of ulcer were resected and the incision was sutured when the ulcer was in the lateral of subtalar joint, and ankle Ilizarov external fixation for extension was installed after correcting talipes equinovarus partially. For the legacy skin ulcer in weight-bearing area,the Shenrg-ji cream (Chinese characters) was used after operation for one time per day until the wound healed. Adjusting Ilizarov external fixation for correcting residual deformity until it is satisfaction. During this process weight-bearing walking was keeping.

RESULTSAll cases were followed up from 6 to 52 months with an average of 28 months. All ulcers were healing and no recurrence. The ulcer healing time was 14 to 36 days postoperative (26 days in average). Eighteen deformity feet were corrected satisfactorily, and recovered fully plantar foot, 3 feet appeared mild deformity after 1 year. Ankle joint activity appeared limited in 15 cases and got completely rigidity in 6 cases. The AOFAS increased from preoperative 34.0±7.2 to 86.0±8.5 postoperatively; 8 feet got excellent, 10 good,3 fair.

CONCLUSIONThe clinical effect of Ilizarov technique combined with limited operation and the Sheng-ji cream in correction of the talipes equinovarus with skin ulcer in weigh-bearing area on account of neurotrophic malnutrition is satisfactory, the surgical method is simple and the treating course in security, and serious complications can be avoided.

Adolescent ; Adult ; Child ; Clubfoot ; surgery ; External Fixators ; Female ; Foot Ulcer ; surgery ; Humans ; Ilizarov Technique ; Male

Objective To observe the therapeutic action of choline on As2O3 induced electrecardiogram (ECG)QT interval prolongation and to further explore molecular biological mechanisms.Methods 40 guinea pigs were divided into 5 groups randomly with 8 rats in each group:control group intravenously injected with saline, experimental group with 0.4,0.8,1.6 ms/kg of choline and As2O3 group with 8 mg/kg choline plus 1.6 mg/kg As2O3.After a series of concentration of As2O3 was intravenously given,ECG was monitored at different time(0,10, 30,60,90,120 min),and corrected QT interval(QTc)was studied.Total RNA Wa$abstracted from the guinea pigs hearts after 6 h,and the effects of choline on altered L-type calcium channel α1c and potassium channel GPERG mRNA expression caused by As2O3 in cardiomyocytes of guinea pig were studied by the method of reverse transcription polyme,chain reaction(RT-PCR).Results In 0.8 mg/kg As2O3 group,the value of QTc at 60, 90 and 120 min respectively being 354 ±22.366± 31 and 368 ±29 waa significantly higher than that of control groups[(325±26,336 ±26 and 324 ±20)at same time] with a significant difference(P<0.05 or<0.01);the value of QTc at 90 and 120 rain was significantly higher than that of O min group(334 ±12),the difference being statistically significant(P<0.05).In 1.6 mg/kg As2O3 group,the value of QTc at 10,30,60,90 and 120 min respectively being 362±33,380±21,382±35,388±39 and 388 ±31 was significantly higher than that of control groups[(328 ±20.324 ±25,325 ±26,336±26 and 324 ±20)at same time]with a significant difference (P<0.05 or<0.01);the value of QTc at 10,30,60,90 and 120 min Was significantly higher than that of O min group(329 ±31),the difference being statistically significant(P<0.05).In choline+As2O3group,the value of qrc at 30,60,90 and 120 min was 337 ±17,341±15,344 ±22 and 343 ±19,significantly lower than that of 1.6 mg/kg As2O3 group,the difference being statistically significant(P<0.05 or<0.01).The RT-PCR results indicated that the value of L-type calcium channel α1c mRNA expression at the concentration of 1.6 mg/kg As2O3 was 1.27±0.14 vs 1.02±0.12 of control group(P<0.01),and it was 1.10 ±0.13 in choline+As2O3 group(P<0.05 Vs 1.6 mg/kg As2O3 group).The value of potassium channel GPERG mRNA expression were 1.29 ±0.11,1.22±0.12 and 1.27±0.16 at the dose of 0.4,0.8,1.6 mg/kg As2O3(P>0.05 VS 1.23±0.08 of control group).In choline+ As2O3 group,the value was 1.30±0.14(compared with 1.6 mg/kg As2O3 group,P>0.05).Conclusions Choline normalizes QTc abnormality during As2O3 application,and modulating changed calcium channel mRNA expression induced by As2O3 may be one of the mechanisms.

AIMTo explore the effects of M3 receptor on myocyte apoptosis induced by acute myocardial infarction in rats.

METHODSRat model was induced by ligation of the anterior branch of the left coronary artery. All animals were divided into four groups: sham-operated group, occlusion group, choline group (10 mg x kg(-1), iv), and 4DAMP (4-diphenylacetoxy-N-methylpiperidine-methiodide) group (0.12 mg x kg(-1), iv). The serum malondialdehyde (MDA) content and superoxide dismutase (SOD) activity were determined. The infarct size areas on the myocardium were identified by TTC staining. The apoptosis in cardiomyocyte was detected by TUNEL assay and apoptosis-related proteins in Bcl-2 and Fas expression were measured by immunohistochemistry assay.

RESULTSM3 receptor agonist choline reduced serum MDA content and increased SOD activity. The myocardial expression of Bcl-2 was increased, whereas the expression of Fas was decreased by choline. However, blockade of M3 receptor by 4DAMP completely inhibited these effects of choline on cardiac myocytes.

CONCLUSIONActivation of M3 receptor has protective effect on myocyte apoptosis induced by acute myocardial infarction in rat, and this effect might be related to modulating the expression of some immediateearly genes including Bcl-2 and Fas.

Animals ; Apoptosis ; Choline ; pharmacology ; Male ; Malondialdehyde ; blood ; Myocardial Infarction ; metabolism ; pathology ; Myocardium ; pathology ; Myocytes, Cardiac ; metabolism ; pathology ; Piperidines ; pharmacology ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Rats, Wistar ; Receptor, Muscarinic M3 ; agonists ; antagonists & inhibitors ; Receptors, Tumor Necrosis Factor ; metabolism ; Superoxide Dismutase ; blood ; fas Receptor

Breast Neoplasms ; metabolism ; pathology ; surgery ; Carcinoma ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Female ; Fibroma ; metabolism ; pathology ; surgery ; Humans ; Keratins ; metabolism ; Middle Aged ; Vimentin ; metabolism

Objective To investigate the changes of T-lymphocyte subsets, NK cells and clinical signification in patients with intestinal tu-berculosis after the treatment of thymosin-al. Methods Sixty-six ca-ses of intestinal tuberculosis patients were treated by thymosin-α1 fol-lowed the basis of conventional anti-TB treatment, while 62 cases as a control group. The frequencies of peripheral blood T-lymphocyte subsets and NK cells were determined by flow cytometry. Results After the end of 12 and 16 weeks, the values of CD3~+ , CD4~+ , CD8~+ , and CD4~+/CD8~+ in trial group exhibited significantly higher than that before treat-ment (P<0.05). NK cells in the end of 8, 12, and 16 weeks showed an ascension too (P < 0. 05). There was no significant difference in the control group after treatment (P > 0. 05). The better clinical efficacy was found in the trial group (P < 0. 05). Conclusion Thymosin-α1 can significantly improve the intestinal immunolologic function in the patient with tuberculosis infection.

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 prevalence of metabolic syndrome in psoriasis inpatients in Peking Union Medical Hospital.

METHODSWe retrospectively reviewed the records of the psoriasis patients admitted in the dermatological ward of Peking Union Medical College Hospital from January 1st, 2003, to December 31st, 2008, and the height, weight, blood pressure, fasting glucose, triglyceride, and high-density lipoprotein levels were recorded.

RESULTSThe prevalence of metabolic syndrome of the psoriasis inpatients of Peking Union Medical College Hospital was 38.1%, with that of the male patients (43.1%) significantly higher than the female (25.0%, P0.05).

CONCLUSIONSPrevalence of metabolic syndrome in psoriasis patients is higher than healthy adults. Screening and patient education are important for these patients in clinical practice.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Inpatients ; Male ; Metabolic Syndrome ; complications ; epidemiology ; Middle Aged ; Prevalence ; Psoriasis ; complications ; Retrospective Studies ; Young Adult