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@#Objective To investigate the relationships between serum microRNA-210 (mir-210),hypoxia inducible factor-1α (HIF-1α) and delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (aSAH).Methods Two hundred and sixty patients with aSAH who were diagnosed and treated in the Department of Neurosurgery of our hospital were selected as the study objects.According to the occurrence of DCI after aSAH,they were divided into non DCI group (181 patients) and DCI group (79 patients).The clinical data of the two groups were collected,the levels of serum mir-210 were determined by real-time fluorescent quantitative PCR (qRT-PCR),and the levels of HIF-1α in serum were determined by enzyme-linked immunosorbent assay (ELISA).Results There were significant differences in aneurysm location,Hunt-Hess grade and Fisher grade between the two groups (P<0.05).The levels of mir-210 and HIF-1α in DCI group were significantly higher than those in non DCI group (P<0.05).Pearson test showed that there was a positive correlation between serum mir-210 level and HIF-1α level in aSAH patients (P<0.05).Multivariate logistic regression analysis showed that Hunt-Hess grade≥3,Fisher grade≥3 and high levels of serum mir-210 and HIF-1α were independent risk factors for DCI after aSAH (P<0.05).ROC curve analysis showed that the area under the curve of DCI after aSAH predicted by serum mir-210 combined with HIF-1α level was higher than that predicted by the two alone,with the sensitivity of 83.33% and the specificity of 94.44%.Conclusions The levels of mir-210 and HIF-1α in patients with DCI after aSAH are all increased,which can be used as potential indexes to judge the occurrence of DCI after aSAH.
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Objective To investigate the effect of optimizing protocol activity on the cardiac function in patients with hypertension.Methods One hundred and one patients with mild and moderate hypertension in Navy General Hospital were enrolled in the study.The patients took regular exercise(6 min walking activity and treadmill test),Echocardiogram was performed 24 h after 6 min walking activity and treadmill test.The cardiac function related parameters were obtained through M-mode,2DE,pulse Doppler and DTI detection to compare the effect of 6 min walking activity and treadmill test on cardiac function.Results The results showed that in the male hypertensive patients,EF and E/E' after treadmill test were superior to those after 6 min walking activity (EF:(59.33±4.46)% vs.(56.05±4.57)%;E/E':(4.12±1.66)vs.(4.95±1.79)),the differences were statistically significant(P=0.02,0.01),while among the female hypertensive patients,there were no significant differences in cardiac function(P>0.05).Conclusion Appropriate activity can improve the cardiac function in male hypertensive patients.EF and E/E' after the treadmill test performed better than those after the 6 min walking activity,while its influence on female hypertensive patients was not significant.
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BACKGROUND:Bone morphogenetic protein 7 (BMP-7) can induce bone and cartilage formationin vivo, and induce chondrogenic and osteogenic differentiation of mesenchymal cels in muscles and around the vessels. OBJECTIVE:To observe the structure of domestic tantalum-muscle interface fibrous capsule, growth of muscle and smal blood vessels into the porous tantalum and the ability of ectopic osteogenesis after implantation of porous tantalum loaded with BMP-7 into the erector spinae of rabbits. METHODS: Porous tantalum slices loaded with BMP-7 (experimental group) and porous tantalum slices (control group) were implanted into the erector spinae muscle of New Zealand white rabbits. And the porous tantalum slices with surrounding muscle tissues about 0.5 cm thick were removed at 2, 4, 8 weeks after implantation, and observed under scanning electron microscope for hematoxylin eosin staining, Masson staining and hard tissue slice observation. RESULTS AND CONCLUSION:(1) Hematoxylin-eosin staining: Fibrous capsule formation was observed around the materials in the two groups, and with the extension of time, the fibrous capsules were slightly dense, and thinned. There was no obvious inflammatory reaction in the interface between the material and the muscle. There was no significant difference between the two groups in the fibrous capsules thickness. (2) Scanning electron microscope: 2 weeks after the surgery, a smal amount of colagen and muscle fibers were formed in the porous tantalum pores in the two groups, and some of colagen fibers attached to the pore wals. At 8 weeks after the surgery, al the pores of porous tantalum were ful of muscle fibers that were combined with the pore wal closely. There was no significant difference between the two groups. (3) Hard tissue slices: 2 weeks after the surgery, a smal amount of fibroblast cels and muscle fibers grew into the pores of porous tantalum in the two groups and new capilaries grew into the pores of porous tantalum in the experimental group. At 8 weeks after the surgery, the porous tantalum and al the pores were ful of muscle fibers that were combined with the pore wal closely, the number of smal blood vessels and cels decreased, and the tantalum and the muscle were fused closely. (4) Masson staining: 8 weeks after the surgery, a large number of mesenchymal cels, ossein and cartilage matrix formed in the muscle gaps and a few cartilage bone tissues were formed in the experimental group, but no cartilage was found in the control group. The study showed that porous tantalum carrying BMP-7 has good biocompatibility and osteogenic induction ability. Subject headings: Tantalum; Bone Morphogenetic Protein 7; Tissue Engineering.
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Objective Parkinson's disease( PD) is a common chronic neurodegenerative disease,with four major symptoms of resting tremor, muscle rigidity, slow motion and postural balance disorder?The pathogenesis of Parkinson's disease is still unknown?A large number of studies suggested that may be the result of the interaction of genetic factors,environmental factors,aging,immune factors,specifically involved in oxidative stress,mitochondrial damage,and other mechanisms?There were 50% patients characterized by tremors,tremor is the most difficult symptoms to treat of PD, but the mechanism is still under controversial, so it ’ s of great significance to understand the generation of PD tremor, which helps to promote the clinical treatment and diagnosis.
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Objective To compare the effectiveness of CO2 laser treatment and routine scalpel procedure for facial sebaceous cyst (SC),and to compare cosmetic effect of laser welding and routine suture skin incision.Methods Two hundred patients with SC were randomly divided into two groups:CO2 laser operative treatment group (laser group),and routine scalpel operative treatment control group (control group),with 100 patients in each group.For the laser group,skins of SC were incised and cyst were extirpated using CO2 laser beam (power 20 W,diameter of light spot 0.2 cm and power density 637 W/cm2).If cyst wall was broken,then CO2 laser was used to gasify the residual.After cleaning skin incision,both border of incision with anastomat of laser welding skin was performed,next to welding skin incision with CO2 laser (power 1 W,diameter of light spot 0.2 cm and power density 32 W/cm2) scanning radiating 2 mm/s.For the control group,skins of SC were incised and cyst or residual wall were extirpated with single-use scalpel,and skin incisions were sutured with 1-0 silk thread by whole layer interrupted suture.Results For the laser group,97 cases (97 ％) were cured,3 cases (3 ％) improved.For the control group,87 cases (87 ％) were cured,9 cases (9 ％)improved and 2 cases (2 ％) had no improvement.Cure rate of laser group was obviously higher than that of the control group (P＜0.05).The cosmetic effect of the laser group was also better than that of the control group (P＜0.01).For the laser group,successful rate of welding skin incision was 100 ％.Conclusions Surgical removal of SC on face and welding skin incision with CO2 laser is very effective.The chances of recurrence and cicatrisation are greatly reduced.In particular,laser welding skin incision establishes a new non-suture reparable method of skin incision,which has important value for the cosmetic and plastic surgery.
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Objective To compare the effect of treating chronic colonitis diarrhea (CCD) using He-Ne laser irradiation of acupoints with routine drug treatment. Methods Two hundred patients with CCD were randomly divided into a laser irradiation group (laser group) and a routine drug treatment group (control group) with 100 patients in each group. The laser group patients were treated with a He-Ne laser ( power density 478 mW/cm2 )through coupling fiberoptic cable radiating onto the Shenque (REN8) , bilateral Tianshu (ST25) and Dachangshu (BL25) acupoints, each for 10 min daily for 10 days. Control group patients were treated with routine drugs such as antibiotics, astringents, antidiarrheals, antispasmodic analgesics, vitamins and Chinese herbal enemas. Three months after treatment the patients were examined by fibercoloscope to evaluate the therapeutic efficacy in the two groups. Results In the laser group 66 cases (66%) experienced a short-term cure, 27 cases (27%) improved and7 cases (7%) showed no effect. In the control group 33 cases (33%) were short-term cures, 43 cases (43%) improved and 24 cases (24%) had no effect. These differences were statistically significant. In both groups the effects for patients with short histories was better than for those with longer histories. In the laser group the pathological changes in the distal colon were significantly better than in the proximal colon, but this difference wasn't significant in the control group. The average days of total treatment to achieve short-term cure and improvement in the laser group were significantly less than in the control group. In the laser group the average days to the disappearance of abdominal pain and diarrhea in the short-term cure patients of was significantly fewer than in the control group. Conclusions Laser irradiation was more effective than routine drug treatment, especially for stopping diarrhea, spasmolysis and analgia.