Objective To observe the effect of liraglutide on arteriosclerotic lesions in diabetic ApoE- / - mice via regulating receptor for advanced glycation end-products ( RAGE) expression of aorta. Methods Thirty male ApoE- / - mice (10 weeks) were randomly divided into 3 groups: control group, diabetes group, and diabetes +liraglutide group. All the mice were fed a high-fat diet. Diabetes was induced by 2 intraperitoneal injection of streptozotocin (STZ, 55 mg·kg-1 ·d-1 ). Mice were treated with subcutaneous injection of liraglutide (0. 4 mg· kg-1 ·d-1 ) in diabetes+liraglutide group. After 9 weeks, blood was drawn and the aorta were rapidly procured. The serum levels of advanced glycation end-products ( AGEs), soluble receptor for advanced glycation end-products (sRAGE ), stromal cell-derived factor-1α ( SDF-1α ), as well as total cholesterol and triacylglycerol were measured. Atherosclerotic plaque area was determined by Sudan Ⅳ staining. The expression of RAGE was determined using RT-PCR and western blot, respectively. Results Compared with control group, the serum AGEs, the RAGE protein and mRNA expression, the atherosclerotic lesions were significantly increased in the mice of diabetes group. Compared with diabetes group, the serum AGEs, the RAGE protein and mRNA expression, the atherosclerotic lesions were significantly decreased in the mice of diabetes+liraglutide group. Conclusion Liraglutide is confirmed as to have an anti-atherosclerotic effects and inhibits RAGE expression in diabetic ApoE- / - mice.

Objective To understand the influential factors for blood lead level of children in Harbin.Methods The lead level in the air,dust,vegetables and the blood of 605 children aged 2-7 years were determineded and family fitment,fuel combustion,the food consumption were investigated.Results The lead contents of air,dust in pollutant areas [(2.037?0.455)?g/m3,(84.000?0.015)mg/kg] were higher compared with the control areas[(1.017?0.595)?g/m3,(72.000?0.025)mg/kg],the differences were significant(P

Objective To understand the effects of environmental pollution on blood lead levels of children.Methods The blood lead levels of605children aged2-7in6urban districts of Harbin and307children aged2-7in Jixi were deter-mined by graphite furnace atom absorption spectrophotometry during the period from April to June in1999.Results The data on blood lead levels of children in two cities showed both positive skewness distribution.The geometric means of blood lead lev-els of children were0.354?mol/L in Harbin and0.441?mol/L in Jixi,the medians were0.369?mol/L in Harbin and0.440?mol/L in Jixi,the values of P 95 were1.575?mol/L in Harbin and1.304?mol/L in Jixi.The children with blood lead levels of≥0.483?mol/L accounted for44.5%of total observed in Harbin and44.9%in Jixi.Conclusion Environmental lead pollution had coused potential adverse effects on preschool children health.

BACKGROUND:Fibrin glue is a natural biodegradable scaffold, which can be used for tissue-engineered scaffolds, and is increasingly used as seed cel carrier for tissue engineering repair. OBJECTIVE:To investigate the biocompatibility in vitro of rabbit fascia fibroblasts and fibrin glue. METHODS:Tissue explants adherent method was used to culture fibroblasts from subcutaneous deep fascia tissue of New Zealand white rabbits. The fibroblasts could be passaged with trypsin digestion method. Suspension of passage four fibroblasts was co-cultured with fibrin glue. Morphology and proliferation of fibroblasts on the surface of fibrin glue were dynamical y observed under the inverted phase contrast microscope. At 5 days after co-culture, fibroblasts were identified by immunofluorescence staining under the laser scanning confocal microscope. The fibroblast growth and adhesion were observed under the scanning electron microscope. RESULTS AND CONCLUSION:There was no significant difference in fibroblast morphology between co-culture fibroblasts and pure culture fibroblasts with inverted phase contrast microscope. Scanning electron microscope demonstrated that fibroblasts ful y extended in fibrin glue surface, and showed a good adhesion between the“pseudopodium”and fibrin glue, and secreted matrix material. It is clear that the fibrin glue did not alter the morphologic features of fibroblasts. Laser scanning confocal microscope revealed that fibroblasts were positive for vimentin. These verified that properties of fibroblasts did not change after they were seeded in fibrin glue surface and did not be induced to differentiate. There is a very good biocompatibility between fascia fibroblasts and fibrin glue in vitro.

Objective To evaluate the characteristics and efficacy of microscope-assisted bilateral decompression via unilateral approach for the treatment of lumbar stenosis. Methods From June 2007 to June 2010, Sixty case lumbar stenosis with bilateral decompression were treated via unilateral approach under microscopy. Patients were followed up from 6 to 24 months, average (12 ± 4.7) months. Results The pain level of each patient was assessed both before and after the opeartion, using a visual analogue scale (VAS). Intermittent claudication was completely relieved in 57 out of 60 cases, moderately relieved in 3 cases. VAS score decreased from pre-operational 9.08 ± 0.76 to post-operational 2.33 ± 1.43, and there was significantly difference between them. There was no recurrent case during the whole follow-up. Conclusion Bilateral decompression via unilateral approach under microscope is proved to be an effective and safe procedure for the treatment of lumbar stenosis, and have the advantages of minimal invasion, less pain, quick recovery, better effect, little influence on the spinal stability.

Scalp arteriovenous fistula (SAVF) is a rare complication of thread-lift sutures for facial rejuvenation.This article reports a 23-year-old female patient who suffered from entotic sounds in left ear after thread lifting. Then, the entotic sounds was gradually aggravated with palpitations. The cerebral angiography showed a high flow scalp arteriovenous fistula in the left temporal region, which got satisfactory result by endovascular embolization with coil and medical glue. There was no recurrence of the fistulas after one year of follow-up.

Scalp arteriovenous fistula (SAVF) is a rare complication of thread-lift sutures for facial rejuvenation.This article reports a 23-year-old female patient who suffered from entotic sounds in left ear after thread lifting. Then, the entotic sounds was gradually aggravated with palpitations. The cerebral angiography showed a high flow scalp arteriovenous fistula in the left temporal region, which got satisfactory result by endovascular embolization with coil and medical glue. There was no recurrence of the fistulas after one year of follow-up.

Objective To evaluate the impact of the growth speed of cerebral infarction on the occurrence of symptomatic intracranial hemorrhage(sICH)in patients with acute anterior circulation ischemic stroke after mechanical thrombectomy.Methods The clinical data of patients with acute ischemic stroke(AIS),who received mechanical thrombectomy at the First Affiliated Hospital of Soochow University of China from June 2016 to December 2022,were retrospectively analyzed.After thrombectomy,the patients were divided into sICH group and non-sICH group according to Heidelberg criteria.The clinical data and imaging findings were compared between the two groups.Multivariate logistic regression analysis was used to identify the independent risk factors for sICH after thrombectomy,and the area under the receiver operating characteristic curve(AUC)was used to evaluate the efficacy of the growth speed of cerebral infarction in predicting sICH.Results A total of 218 patients were enrolled in this study,sICH group had 23 patients and non-sICH group had 195 patients.The differences in NIHSS score,collateral circulation status,core infarction volume,and growth speed of cerebral infarction between the two groups were statistically significant(all P＜0.05).Multivariate logistic regression analysis showed that rapid growth speed of cerebral infarction was an independent risk factor for sICH occurring after mechanical thrombectomy.For predicting sICH,the sensitivity and specificity of the growth speed of cerebral infarction were 78.3％and 69.7％respectively,with an AUC of 0.751 and a predicted value of 7.6 mL/h.Conclusion The rapid growth speed of cerebral infarction is a predictive factor for sICH occurring after mechanical thrombectomy in patients with acute anterior circulation ischemic stroke.The risk of sICH becomes higher after mechanical thrombectomy when the growth speed of cerebral infarction is faster than 7.6 mL/h.

Objective:To investigate the safety of tirofiban in patients with anterior circulation acute large vessel occlusion cerebral infarction during bridging endovascular treatment (EVT) after intravenous thrombolysis (IVT).Methods:Two hundred and three patients received bridging EVT after IVT in Department of Intervention, First Affiliated Hospital of Soochow University from January 2017 to January 2022 were chosen. Patients were divided into tirofiban group ( n=80) and non-tirofiban group ( n=123) according to whether or not tirofiban was used during EVT, and then patients from tirofiban group were subdivided into stent implantation group ( n=52) and non-stent implantation group ( n=28) according to whether or not emergency stent implantation was performed. The clinical data, safety indexes (intracranial hemorrhage [ICH] rate 24 h, 2-3 d, and 90 d after EVT, new ICH incidence 3-90 d after EVT, fatal ICH rate, and mortality 90 d after EVT), and prognoses 90 d after EVT were compared. Results:(1) Compared with the non-tirofiban group, the tirofiban group had significantly higher proportions of males, and patients with tandem occlusion, balloon dilation or stent implantation, and statistically lower proportion of patients with atrial fibrillation, significantly longer surgical time, and significantly different distribution of stroke types ( P<0.05). No significant differences were noted in ICH incidences 24 h after EVT, 2-3 d after EVT and 90 d after EVT, fatal ICH incidence, mortality incidence 90 d after EVT, or good prognosis rate 90 d after surgery between tirofiban group and non-tirofiban group ( P>0.05). (2) Patients in the stent implantation group had significantly higher percentages of tandem occlusion and balloon dilation compared with those in the non-stent implantation group ( P<0.05). No significant difference was noted in good prognosis rate 90 d after EVT or new ICH incidence 3-90 d after EVT between the stent implantation group and the non-stent implantation group ( P>0.05). Compared with the non-stent implantation group, the stent implantation group had statistically higher ICH incidences 24 h after EVT, 2-3 d after EVT, and 90 d after EVT, significantly higher fatal ICH incidence and mortality 90 d after EVT ( P<0.05). Conclusion:Tirofiban is safe in patients with anterior circulation acute large vessel occlusion cerebral infarction during EVT after IVT; however, if emergency stent implantation is performed, it will lead to increased intracranial hemorrhage and mortality.

To investigate the effects of a compound (FF16), compatibility of Rhodiola crenulata, Cordyceps militaris, and Rheum palmatum, on insulin resistance. The results showed that FF16 significantly improved the insulin sensitivity through decreasing AUC values in insulin tolerance tests by 24.1%, 38.5%; reducing the levels of serum insulin by 46.0%, 30.4%, of HOMA-IR by 52.4%, 81.2%; and reversing the lower GIR values by 119.3%, 202.4% in IRF mice and KKAy mice, respectively. In addition, in KKAy mice, the value of whole body insulin sensitivity index (ISWBI) was enhanced by 1.0 times, the abilities of the insulin-induced glucose uptake in liver, adipose and skeletal muscle were enhanced by 1.5, 2.8 and 2.2 times, respectively, in FF16-treated mice comparing with those in model mice. The recombinant human protein tyrosine phosphatase 1B (PTP1B) activity was inhibited by FF16 in vitro with the IC50 value of 0.225 mg x L(-1). The increased PTP1B expression in the liver was also reversed by 45.8% with the administration of FF16 in IRF mice. In conclusion, FF16 could improve insulin resistance by inhibiting the activity of PTP1B.
Animals ; Biological Transport ; drug effects ; Cordyceps ; chemistry ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Glucose ; metabolism ; Humans ; Insulin ; metabolism ; Insulin Resistance ; Male ; Metabolic Syndrome ; drug therapy ; metabolism ; physiopathology ; Mice ; Mice, Inbred C57BL ; Protein Tyrosine Phosphatase, Non-Receptor Type 1 ; antagonists & inhibitors ; Rheum ; chemistry ; Rhodiola ; chemistry