BACKGROUND:Articular cartilage has limited ability to repair itself, and the traditional means are difficult to repair articular cartilage defects, but articular cartilage tissue engineering provides new methods and approaches for large-area articular cartilage defects. OBJECTIVE:To review the current status, problems and prospects of tissue engineering technology in articular cartilage repair. METHODS:The retrieval of PubMed database was performed for articles published from 1982 to 2015, with the keywords of “articular cartilage, repair, tissue engineering” in English. Literatures related to tissue engineering repair of articular cartilage were included, but repetitive studies were excluded. Finaly 39 articles were reserved in result analysis. RESULTS AND CONCLUSION:Excelent seed cels have chondrogenic differentiation potential, and currently, the main seed cels for articular cartilage repair include mesenchymal stem cels, embryonic stem cels, adipose-derived stem cels and precartilaginous stem cels. Different growth factors, which can induce the in vivo growth of host parenchymal cels, improve seeded cel stability, and accelerate tissue regeneration, tend to be combined in clinical application. Composite scaffolds are also one of hot researches that can promote cell inoculation and spatial distribution as well as accelerate cell proliferation. To obtain the best effectiveness of articular cartilage repair, how to optimize seed cells, select and match scaffold materials to construct new types of composite patterns is an important direction in the future.

Population aging is a problem confronting many countries around the world and poses grim challenges to the conventional healthcare model.The measure proposal by WHO,the establishment of age-friendly community-based primary healthcare centers and medical institutions,is both practical and feasible,based on which many countries have formulated implementation frameworks.In China,it is of paramount importance to promote the development of age-friendly hospitals,especially geriatric specialty hospitals,rehabilitation hospitals and nursing homes,in the healthcare sector.Integrated care services offered by age-friendly hospitals can help reduce complications,improve care quality and patient satisfaction,and cut costs,benefiting elderly patients and their families and ultimately moving the healthcare reform forward.

To study the relationship of the polymorphism of the insulin receptor substrate-1(IRS-1) gene 5′-flanking regulatory sequence and Type 2 diabetes,the IRS-1 gene 5′-flanking regulatory sequence was scanned by PCR-SSCP in 78 healthy control subjects and 76 Type 2 diabetic subjects. Applying PCR-denatured polyacrylamide gel electrophoresis and silver staining, the insertion/deletion polymorphism of the CAG-rich region was analyzed. The genome DNA of the normal and variant subjects was amplified with high-fidelity pfu DNA polymerase. The purified and digested target fragments were then subcloned into the pCAT Basic vector. Each allele was identified according to the mobility by the restrictive endonuclease digestion of the recombinant combined with denatured polyacrylamide gel electrophoresis and silver staining, and finally the constructive plasmids containing different alleles were analyzed by DNA sequencing. Firstly, we found several insertion/deletion variations in the CAG-rich region of IRS-1 gene. Secondly,7 genotypes and 6 alleles(T1～T6) in this site were detected.Moreover, T5 and T6 were only observed in Type 2 diabetic group.

0.05).[Conclusion]Allogeneic freeze-dried bone marrow stromal cells has better biocompatibility but no cytotoxicity.It provids experimental data for its clinical application.

[Objective]To investigate the ability of repairing bone defect with the combination of recombinant human insulin-like growth factor-1(rhIGF-1),coralline hydrolyapatite(CHA) and autogeneous red bone marrow(ARBM) by way of imaginology.[Method]Bilateral middle radius periosteum-bone defects (11mm in length) were created in 54 Chinese rabbits,and were ramdonly devided into 6 groups(each group containning 18 radial defects of one forearm): group A, defects transplanted with rhIGF-1/CHA/ARBM,group B,with CHA/ARBM,group C,with rhIGF-1/CHA,group D,with CHA,group E,with autograft,group F,no implant.At 2,4,8,and 12 weeks postoperation,the repair effects of defects were evaluated by observation of gross appearance,roengenodiagnosis and radionuclide bone image assay.[Result]In group A,radiological and bone density image analysis showed that the defects were bridged well at 12 weeks postoperatively and was significantly superior to those of any other groups(P0.05).[Conclusion]The recombinant compound rhIGF-1/CHA/ARBM,which possesses the potential ability of osteogenesis,osteocondution and osteoinduction for bone defect repairing,can enhance bone healing and serve as a new type of bone substitute.

OBJECTIVE: To observe the characteristics of serum protein in patients with benign paroxysmal positional vertigo (BPPV) during the symptomatic period. METHOD: Fifty-five patients with BPPV and 58 control subjects were enrolled in the study. All the patients underwent the Dixe-Hallpike and Roll maneuver to confirm the type of BPPV. The average time of onset was (1.0 ± 0.8)days in the group of BPPV. The clinical features and the laboratory tests of serum protein electrophoresis, blood counts, and liver and kidney function were performed in both groups. RESULT: The levels of serum albumin (Alb), α1 globulin, α2 globulin and β globulin of BPPV group did not differ statistically in the two groups (P > 0.05); The γ-globulin levels were significantly higher in patients with BPPV than in controls (P < 0.05). CONCLUSION The γ-globulin levels are increased when BPPV is attacking.
Alpha-Globulins ; analysis ; Benign Paroxysmal Positional Vertigo ; blood ; diagnosis ; Beta-Globulins ; analysis ; Case-Control Studies ; Humans ; Serum Albumin ; analysis ; gamma-Globulins ; analysis

Objective To explore the effects of botulinum toxin type A (BTX-A) on the F-waves of the tibial nerve and the walking ability of stroke patients.Methods Twenty stroke patients with spastic hemiplegia of a lower limb were randomly divided into experimental and control groups with 10 patients in each group.All received four weeks of conventional rehabilitation,including walking training,balance training and muscle strength training.In the experimental group,a total of 300 IU of BTX-A was injected into the gastrocnemius (200 IU) and soleus muscles (100 IU)before the start of routine rehabilitation,guided by using the electrical stimulation.Muscle tone was assessed using the modified Ashworth scale(MAS).Walking ability was assessed with the timed up and go test (TUGT) and a 10 m free walking test.F-wave parameters were recorded in the tibial nerve before,two weeks and four weeks after the injection.Results In the experimental group there was a significant difference in F-wave amplitude between those recorded before treatment and after two weeks of treatment.The control group showed no statistically significant difference.In experimental group there was also a statistically significant difference in triceps muscle tension before and after treatment which was not observed in the control group.Walking ability improved significantly in both groups.Conclusions Local injection of BTX-A into the lower limbs can reduce the F-wave amplitudes of spinal cord motor neurons.BTX-A injection combined with rehabilitation training can significantly improve the walking ability of stroke patients.

ObjectiveTo observe the discoloration of chemical indicator cards in different positions in pressure steam sterilization bags and stetilization effect.MethodsFrom January 2009 to January 2011,168 packages needing sterilization were divided into group A and group B randomiy with 84 packages in each.We put chemical indicator cards on different positions in the packages.Then discoloration of chemical indicator cards and the qualified rate of bacteriology detection were observed.ResultsThere were 9cases of uneven discoloration in group A,and the incidence rate was 10.71％,higher than group B.The unqualified rate of bacteriology detection in group A was 2.38％,higher than group B(1.19％),but the difference was not statistically significant.ConclusionsChemical indicator cards could reflect the effect of sterilization,but placing them in different positions can appear different results.The chemical indicator cards that placed between the two packing layer could provide powerful evidence for sterilization effects for clinicians,and avoid unnecessary economic waste in Sterilization and Supply Center,which is worthy of being widely used in Sterilization and Supply Center.

Objective: To observe the therapeutic effects of needle warming moxibustion for chronic diarrhea. Methods: Two-hundred cases with chronic diarrhea were divided randomly into a treatment group and a control group. 100 cases in the treatment group were treated with needle warming moxibustion on specific acupoints. 100 cases in the control group were treated by oral administration of Smecta. Results: The therapeutic results showed cure in 52 cases, remarkable effect in 34 cases, improvement in 14 cases and the total effective rate in 100.0% in the treatment group, and cure in 5 cases, remarkable effect in 23 cases, improvement in 33 cases, failure in 39 cases and the total effective rate in 61.0% in the control group. The comparison of the total effective rate between the two groups was statistically significant (P<0.05). Conclusion: The needle warming moxibustion on specific acupoints is better than oral administration of Smecta in the therapeutic effects.

Objective To evaluate the clinical application of spiral CT pulmonary angiography(SCTPA) in the diagnosis of pulmonary embolism(PE) and its limitation.Methods 52 cases of PE were analyzed.SCTPA were performed in all cases with slice thickness 3 mm,pitch 1.5~2.0,scanning time 0.8 s,reconstruction thickness 1mm.The reconstructions of SCTPA included MIP,MPR and SSD.Results 2898 pulmonary arteries in 52 cases were observed.The direct manifestations of PE were showed in 927 pulmonary arteries(32.0%) by SCTPA,in which superior segmental and inferior segmental of pulmonary arteries were involved respectively.The indirect manifestations of PE were showed by plain scan in 113 cases.Conclusion SCTPA is a high effective and noninvasive method in the diagnosis of PE especially for the PE of superior segmental.