Bilateral ablation of the cerebral parietal cortex in adult rats was performed. After appropriate days, the tissue surrounding the wound was removed and the brain wound tissue extract (EWTE) was prepared. Newborn rat cerebral cortical neurons were used as a culture model to test the neuronotrophic factors (NTFs) and neuritepromoting factors (NPFs) in EWTE. In order to investigate the origin of above mentioned factors whether related to the macrophages which appeared in the brain wound region at early stage, we designed to culture macrophages and collected the macrophage conditioned medium (M?CM) to measure their NTF and NPF activities for cultured cerebral cortical neurons. On the other hand, we also observed the effect of EWTE and M?CM on PC 12 (phehrmytema) cells and further studied the action of NPFs. Cur experimental results show that EWTE and M?CM contained NTFs and NPFs for cultured cerebral cortical neurons. These factors appeared in EWTE at 4 days post-lesion, with maximal level of their activities reached between 5 and 6 days post-lesion and there was another peak of NPF activity at 9 days post-lesion, until 13 days post-lesion also detected their activities. The NTF activity in M?CM was lower than that in BWTE, in contrast, the NPF activity in M?CM was higher than that in BWTE. There was NPF activity to PC 12 cells in BWTE and M?CM. According to the experimental assays, we suppose that the neurotrophic factors in BWTE mainly come from the macrophages which appear in the lesion site at early stage of injured brain, subsequently, it may relate to the astrocytes. The components of these factors may be complexity and multiplicity that remain to be solved.

Objective To investigate the influence of insulin pump on type 2 diabetes mellitus.Methods 51 patients were randomized into two groups: 31 cases controlled with insulin pump,20 treated with oral antidiabetic drugs.Serum level of C-peptide concentration was observed.Results There was a markedly increase in C-peptide level in both insulin treating group(P<0.001) and oral drug group(P<0.01).Half an year later,the insulin group was improved in β-cell function better than oral drug group.Conclusions Several days controlling of severe hyperglycemia with insulin pump could not eliminate the β-cell inhibition of glucose toxicity.Newly diagnosed severe type 2 diabetes(FPG≥14 mmol/L) could be treated with insulin for several months.

ObjectiveTo study the expression of C3d in bullous pemphigoid lesions and its clinical significance.MethodsThe immunohistochemical SP method was used to detect the expression of C3d,IgG and IgA in tissue specimens from the lesions of 25 patients with bullous pemphigoid,10 patients with epidermolysis bullosa and normal skin of 10 human controls.The expression rates of these proteins were compared.Results The expression rates of C3d,IgG and IgA were 96％,72.0％ and 0 respectively in bullous pemphigoid tissue.Significant differences were found in the expression rates between C3d and IgG (x2 =4.17,P ＜ 0.05),as well as between C3d and IgA(x2 =22.04,P ＜ 0.01 ),in bullous pemphigoid tissue.No expression of C3d,IgG or IgA was observed in epidermolysis bullosa lesions or the control skin.ConslusionThe detection of C3d with immunohistochemistry in paraffin-embedded tissue sections may facilitate the diagnosis of bullous pemphigoid.

Objective To observe whether the high-flow nasal cannulae (HFNC) can reduce the rate of re intubation after extubation in patients with tracheal intubation in the intensive care unit (ICU). Methods 134 patients with mechanical ventilation in ICU were divided into 2 groups according to the order of ICU. The control group and the observation group were divided into 67 groups. Patients in control group were used routine oxygen inhalation (nasal duct and mask) after weaning, while the observation group was HFNC. All the other patients with the same treatment and care. The rate of re intubation was compared between the 2 groups. Results In the observation group, the rate of reintubation was 4.48%(3/67) of all. The control group was 14.92%(10/67), two groups of patients with reintubation rate difference was statistically significant (χ2= 4.17, P < 0.05). Conclusions HFNC can decrease the rate of re intubation after extubation in patients with tracheal intubation.

With the higher and higher application level of medical information technology, the construction of digital hospital has been a trend in the field of medical information. Based on the opinions of domestic and foreign experts, this paper introduces the definition of digital hospital and analyzes different application levels in digital hospital. The key technology is discussed in detail.

Objective To investigate the influence of insulin pump on type 2 diabetes mellitus.Methods 51 patients were randomized into two groups: 31 cases controlled with insulin pump,20 treated with oral antidiabetic drugs.Serum level of C-peptide concentration was observed.Results There was a markedly increase in C-peptide level in both insulin treating group(P

Spinal giant cell tumor of bone (GCTB) is a kind of primary benign bone tumors in the spine. It is rich in blood supply,aggressive,and easily recurring and lung metastasizing. So the benign GCTBs of the spine remains a challenge to treat.This article reviews the therapeutic methods in spinal GCTBs,including surgery,radiation therapy,arterial embolization. The treatment for the tumor with lung metastasis is also covered in this review. It is established that En bloc resection with wide margins is the most effective method to spinal GCTBs. To eliminate the residual tumor cells,adjuvant radiation should be done when complete resection is not available. Arterial embolization can be used to treat the huge sacral GCTBs.For those with lung metatasis,they can be controlled by lobectomy and /or chemotherapy.

Hydronephrosis is one of the most common urological diseases in children.Most of hydronephrosis caused by ureteropelvic junction obstruction.Whether these children need operations were being argued.The current tendency is when the renal function become worse,operation is suggested needed,in order to save the renal function.So the methods how to evaluate the renal function are especially important,this article related to the current research and review.

BACKGROUND: Defected Laryngeal cartilage has many alternatives, including autologous cartilage, al ograft cartilage and metal stents. Although these materials can achieve desired outcomes in laryngeal cartilage defect repair, certain limitations exist. OBJECTIVE: To investigate the biocompatibility and properties of artificial ossicular chain reconstruction materials, and to explore the effect of artificial ossicular chain reconstruction materials on laryngeal cartilage defect repair. METHODS: Porous hydroxyapatite otosteon was prepared by high-temperature calcination of hydroxyapatite, fol owed by cultured in bone morphogenetic protein solution extracted from fresh human bone to construct bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material. And then, the biocompatibility and characteristics of the material were analyzed. Forty adult male New Zealand white rabbits were randomly divided into porous hydroxyapatite group and artificial ossicular chain reconstruction material group (n=20 per group), and underwent repair with porous hydroxyapatite material and bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material respectively after modeling of laryngeal cartilage defect. RESULTS AND CONCLUSION: There was a significant difference in compressive strength of artificial ossicular chain reconstruction materials with different porosities. No symmetry sphere formed in hol ows of the outer surface of the material, with polygonal appearance and with a pore size of 100-200 μm. There were no obvious adverse reactions in both two groups after implantation, but in the artificial ossicular chain reconstruction material group, numerous fibrous connective tissues and obvious bone nodules appeared, and the degradation rate of the material was faster. These results suggest that the bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material exhibits good biocompatibility and properties, which wil obtain satisfactory outcomes for laryngeal cartilage defect repair. So, the material holds a great value of clinical application.

Objective To observe the chronological and spatial expression of fibronectin(Fn)and TGF-?RⅡ in developing mouse glomeruli.Methods The expressions of Fn and TGF-?RⅡ were examined by immunohistochemical and stereological method in embryos(including fetal age of 12,14,16 and 18d)and postnatal mouse kidneys(including the age of 1,3,7,14,21,28 and 42d).Results Immunohistochemical results showed that at fetal age of 14d,Fn was stained in S-shaped corpuscles,but not stained in the comma-shaped corpuscles.After fetal age 16d,Fn was expressed in all stages of glomeruli except the comma-shaped corpuscles.TGF-?RⅡ was stained in all stages of glomeruli from fetal age 14d.Fn and TGF-?RⅡ were localized respectively in basement membrane and cell plasma of glomeruli.Stereological analysis showed that the expression of Fn was increased gradually in all stages of glomeruli with renal development,except in the comma-shaped corpuscles;also,the expression of TGF-?RⅡ increased gradually in all stages of glomeruli with renal development.Conclusion The expressions of Fn and TGF-?RⅡ in embryonic and postnatal mouse kidney show chronological and spatial sequence,implying that they might play a role in the development and maturation of renal glomeruli of mouse.