To explore the significance of the autologous red bone marrow grafting alone in the process of bony healing, 30 New Zealand white rabbits were used and 10mm—long diaphysial defects were made on the bilateral same region of ulnae. On the left side of each animal 1. 5ml of bone marrow, aspirated from the autotogous greater trochanter, were injected into the defect as experiment group and on the right side 1.5ml of saline were injected into the defect as a control group. The speciments were observed by means of radioiso—tope, radiography, hostology and callus weight determination among 1～16 weeks in batches. These results demonstrated that the autologous red bone marrow grafting have definite effect on promoting bone healing.

Objective To investigate the relationship between the prognosis of patients with coronary heart disease in elderly heart failure between lipid levels .Methods 720 cases of coronary heart disease in elderly patients with heart failure ,according to the survival of the follow-up period were divided into survival group and death group , comparing lipid levels in each group of patients , the use of multivariate Cox regression analysis to investigate the effects of lipids in elderly patients with heart failure ,coronary artery disease prognosis .Results Age group of death , old myocardial infarction ( OMI ) , the probability of occurrence of atrial fibrillation , anemia was significantly higher than that of the survival group (χ2 =5.626,4.597,5.632,6.461,all P<0.05),HDL-C,EF,ACEI/ARB and statins was significantly lower than those of the survival group (t=10.725,9.563,8.457,9.170,P<0.05 or P<0.01).An-giotensin-converting enzyme inhibitors ( ACEI)/angiotensin Ⅱreceptor antagonists ( ARB) would help to improve the prognosis(r=0.678,P<0.01),whereas low levels and low levels of HDL-C,NYHAⅢ-grade Ⅳ,age was a risk fac-tor(r=1.052,2.298,2.586,all P<0.01).Conclusion There is a close contact between HDL-C and prognosis of heart failure in elderly patients with coronary heart disease ,in order to improve the prognosis of patients ,it can be ap-propriately managed to elevate HDL-C levels.

This paper reports the antimutagenesis effect of three different preparations of five kinds of Chongqing green tea on four direct and indirect mutagens with Ames test.The results show that acetone extracts and concentrated water extracts of all the above green teas markedly inhibit the mutagenicity of AFB1 and B(a)P.The inhibition rate is above 89%, and the dose-response relation is clear. The inhibition rate of drinking concentration of water extract of the teas for mutagenicity of AFB1 and B(a) P is above 70%. But neither the acetone extracts nor the water extracts of the above green tea inhibit the mutagenicity of the two direct mutagens-2, 7-diaminofluorene and sodium azide, the inhibition rates are all below 20%. The possible mechanisms of action are being discussed

Objective To study the effects of Bacillus Calmette-Guerin (BCG) intervention on the expression of stem cell factor (SCF) in asthma. Methods Kunming mice were randomly divided into asthmatic group, BCG group and control group of ten mice each group. Mice were sensitized and challenged with ovalbumin (OVA) to establish asthmatic model. After twenty-four hours of last challenge, eosinophils (EOS) were counted in the lung tissue and bronchoaveolar lavage fluid (BALF). The level of SCF in BALF was determined by enzyme-linked immunosorbent assay. The expression of SCF protein in lung tis-sue was measured by immunohistochemistry technique and computerized image analysis system. Results The number of EOS in lung tissue was (10.67±1.94)/HP, (6.40±1.55)/HP and (0.37±0.33)/HP in asthmatic, BCG and control group respectively. The number of EOS in BALF was (7.58 ± 1.30) × 107/L, (3.78 ± 1.15) × 107/L and 0 in asthmatic, BCG and control group respectively. The difference between each group was statistically significant (P<0.01). The immunohistochemical index of SCF protein in lung was (24787.97±7214.12), (20509.50±4775.27) and (12261.66±3277.65) in asthmatic, BCG and control group respectively. The SCF level of BALF was (280.25 ± 14.20) pg/ml, (266.77 ± 31.15) pg/ml and (223.59 ± 15.61) pg/ml in asthmatic, BCG and control group respectively. The SCF level in BALF in asthmatic and BCG group was significantly different from that in control group (P<0.05). There was no significant difference of SCF level in BALF between BCG and asthmatic group (P>0.05). In asth-matic group, the expression of SCF in lung was positively correlated with the number of EOS (P<0.05). Conclusions BCG treat-ment can markedly decrease the airway inflammation in asthmatic mice. BCG cannot inhibit the expression of SCF in asthma.

AIM To investigate the patterns of potassium channel gene Kv 1 5 mRNA expression in the developing rat brain by using RNase protection assay. METHODS (1) RNA was extracted from brain tissues by one step method, (2) The preparation of DNA template, (3) Synthesis of RNA probe in vitro transcription, (4) RNA:RNA. RESULTS Kv 1 5 was absent in embryo tissue, but significantly increased at postnatal day 25 with adult rat, the mRNA expression did not show any change. CONCLUSION there is close relationship between Kv 1 5 mRNA expression is pertinent to the development and function differentiation of rat brain.

Objective To investigate the clinical effect of basilic vein transposition arteriovenous fistula in hemodialysis patients.Methods NInety patients with maintenance hemodialysis received in the NO.180 Hospital of the Chinese People's Liberation Army from September 2011 to September 2012 were randomly divided into two groups,and each group of 45 cases.Patients in the observation were given brachial-basilica transposition arteriovenous fistula,while patients in the control group received artificial vascular graft arteriovenous fistula.The fistula maturation time,dialysis blood flow,urea removal index (Kt/V),patency rates and complications were respectively recorded.Results Compared with control group,fistula maturation time,dialysis blood flow,Kt/V and complications rates in observation group were significantly higher((14.4±3.2)weeks vs.(16.1±2.7) weeks,(291.5±33.9) ml/min vs.(252.6±29.8) ml/min,(1.6±0.2) vs.(1.3±0.3);t =4.538,3.984,4.016;P＜ 0.05).Complications (ipsilateral upper limb swelling,thrombosis,venous ectasia and arteriovenous fistula stenosis) incidence were significantly lower than those of control group (2.2％vs.13.3％,2.2％ vs.11.1％,6.6％ vs.17.8％,11.1％ vs.24.4％;x2=5.463,4.972,5.017,3.968;P ＜0.05).Patency rates of observation group in 3 months,6 months,1 year and 2 years were also significantly higher than those of control group (97.8％ vs.93.3％,91.1％ vs.84.4％,88.9％ vs.75.6％,84.4％ vs.68.9％,x2 =5.315,4.238,7.024,5.913;P＜0.05).Conclusion Basilic vein transposition arteriovenous fistula is reliable and effective for hemodialysis patients.It can achieve adequate dialysis and less complications and It is worth of clinical application.

Diabetic nephropathy is caused by manifold factors .Increasing evidences suggest that immunoregulation abnormality caused by inflammatory cell infiltration and proinflammatory factor overexpression in kidney tissue has a key role in the occurrence and development of diabetic nephropathy .As a novel immunomodulator , activated vitamin D 3 could inhibit inflammatory factor and regulate immunity response .The author reviews the effect of activated vitamin D 3 related to diabetic nephropathy , from the pointviews of immu-nocyte, cytokines and rennin-angiotensin system.The roles of macrophage, T lymphocytes, dendritic cell, transforming growth factor-β1, and rennin-angiotensin system in kidney injury and immunal regulation of activated vitamin D 3 are discussed.

KCNQ channels are an important sub-family in potassium channels. They are divided into five subtypes, including KCNQ1, KCNQ2, KCNQ3, KCNQ4, KCNQ5. KCNQ channels have a wide range of physiological and pathophysiologi-cal correlates. KCNQ1 (KvLTQ1) forms cardiac-delayed rectifier-like K+ current in the heart with other subunits. Mutations in this channel can cause one form of inherited long QT syndrome (LQT1). KCNQ2 and KCNQ3 heteromultimers are thought to underlie the M-current; mutations in these genes may cause an inherited form of juvenile epilepsy. The KCNQ4 gene is thought to encode the molecular correlate of the 7K.n in outer hair cells of the cochlea mutations whose mutation leads to a form of inherited deafness. KCNQ5 co-assemble with KCNQ3 in brain, and may also play a role in the M-current heterogeneity.

Oxygen sensitive potassium channels can sense the change of oxygen pressure and mediate modifications in cell excitability,contractivity and secretory activity. Several oxygen sensitive K + channels subunits have been identified: Kv 1 2, Kv 1 4, Kv 1 5, Kv 2 1, Kv 3 1 b, Kv 3 3, Kv 3 4, Kv 4 2, Kv 4 3, Kv 9 3, K ATP , K Ca , TASK 1 and hTASK3. There are three mechanisms about the oxygen sensitivity of potassium channels. The subtypes and mechanisms of oxygen sensitive potassium channels variy from different cells and species. Discovery of the subunits of the oxygen sensitive potassium channels and their mechanisms might help to develop understanding and treatment of ischemic disorders, such as stroke, myocardial infarction, pulmonary hypertention as well as reperfusion injury.