OBJECTIVE To study the phenomenon of hepatitis B surface antigen(HBsAg) and antibody(HBsAb) both positive in blood samples.METHODS Using electro-chemo-luminescence immune system E170 to detect HBsAg and HBsAb in clinical samples and retest the both positive cases by another two reagents for HBsAg and another three reagents for HBsAb.RESULTS All 7332 samples showed 140 both HBsAg and HBsAb positive(1.9%) and 73 of them were retested for HBsAb by another three reagents which gave altogether 24 positive results,which was not related to each other.Those gave higher HBsAb value by E170 showed higher positive rate by Abbott reagent.CONCLUSIONS HBsAg and HBsAb both positive results are not rare.It may be due to the interactions between the patient and the infected hepatitis B virus.Besides,the quality of reagents and correct lab operating procedures may also affect the test results.

Objective To study the effects of the Chinese herbal compound (Erzhiwan, Shixiaosan and combined formula) on cholestasis-induced liver fibrosis rat’s uPA. Methods Bile duct ligation method was used to make the model of cholestasis-induced liver fibrosis. One week after the operation, the rats were randomly divided into five group (model group, UDCA group, Erzhiwan group, Shixiaosan group and hefang group). Each medicine intervention group was given corresponding medicine by intragastric administration. Sham and model group were given sodium chloride with equal dosage. At the end of 4th week, all rats were sacrificed and sampled. General state of health, hepatic function (ALT, AST, ALP, TBil) and pathological histology of hepatic tissue were recorded and measured. Results Compared with the sham group, the level of ALT, AST, ALP, TBil and the degree of liver fibrosis in model group were advanced significantly. Compared with model group, three Chinese herbal compound decreased serum level of ALP, ALT and AST (P

Equipment Safety ; Nanostructures ; adverse effects

Environmental Monitoring ; Humans ; Occupational Health

Cell Physiological Phenomena ; Electromagnetic Fields

Objective:To compare the immunology parameters and stress hormone in two groups of patients with lung cancer after radical operation and provide reference to clinical surgery.Methods:From March 2015 to March 2016, 72 cases in our hospital were accepted surgical treatment for lung cancer and divided into observation group and control group. Among them 36 cases of video-assisted thoracoscopy lung cancer radical surgery for the treatment of patients in mind as the observation group, 36 cases of open chest lung cancer radical operation were recorded as control group, respectively comparing two groups of patients with preoperative and postoperative 3 days red cell immune index, index of cellular immunity, stress hormone level and blood rheology index.Results:3 days after operation, the observation group in terms of RBC-C3b, RFER levels were significantly higher than those of control group and RBC-IC and RFER were significantly lower than those in the control group. 3 days after operation, the observation group CD3+, CD4+, CD3+CD4+ were significantly higher than those of the control group, while CD8+ was significantly lower than that of the control group. 3 days after operation, the observation group NE, Cor, angiotensin II (ANG II) was significantly higher than that of the control group (t=2.181,t=10.320,t=5.924;P<0.05). 3 days after operation in observation group, the plasma viscosity, erythrocyte sedimentation equation K value were significantly lower than those in the control group. The differences were statistically significant (t=29.698,t=7.411;P<0.05).Conclusion:The side-effect of thoracoscopy radical resection of lung cancer is small, and it has more advantages compared with open chest lung cancer radical operation.

Objective To investigate the expression of heparanase in transitional cell carcinoma of bladder(TCCB) and its correlation with prognosis in bladder cancer.Methods The expression of heparanase protein and microvessel formation was assessed by immunohistochemical staining in 80 bladder cancer speci- mens resected at various stages of disease and 20 non-tumor bladder tissues (controls).Results The overall positive rate of heparanase in 80 cases of bladder carcinoma was57.5% (n=46),it was significantly higher than in non-tumor bladder tissues (P

Glaucoma is the first leading cause of irreversible blindness and the second leading cause of blindness worldwide. Numerous studies have shown that elevated intraocular pressure ( IOP ) is one of the major risk factors for the development and progression of glaucomatous optic nerve damage. However, there have been 50% of primary open-angle glaucoma ( POAG ) patients with typical glaucomatous optic neuropathy in whom the IOP measurements have always been in the normal range, and some patients develop typical glaucomatous optic neuropathy with the well controlled IOP. These phenomena cannot be explained by the theory of high intraocular pressure. The pathogenesis of glaucomatous optic nerve damage in these patients with normal IOP needs to be further discussed. Numerous studies at home and abroad have shown that: 1. the surrounding anatomy of the optic nerve including the IOP, the anatomy and biomechanics of the lamina cribrosa and retrobulbar orbital cerebrospinal fluid pressure may be of importance for the pathogenesis of the POAG;2. patients with normal tension glaucoma had significantly lower cerebrospinal fluid pressure and a higher trans - lamina cribrosa pressure difference compared with normal subjects; 3. patients with ocular hypertension had significantly higher cerebrospinal fluid pressure, however, there is no difference in trans -lamina cribrosa pressure compared with normal subjects. Based on the above research, now we make a review about the research advance of the relation between intracranial pressure and glaucoma optic nerve damage and the available measurements about noninvasive intracranial pressure in clinical in this paper.

Objective To evaluate cortisol level in experimental frequent febrile seizures model rats.Methods Rats were divided into 3 groups: normal control group(n=10,NC group),hyperthermic control group(n=12,HC group) and febrile seizures group(n=21,FS group).Cortisol level in serum and hippocampus of rats were determined by ELISA.Ultrastructural changes of neurons in hippocampal region CA1 was observed by electron microscop.Results 1.No special ultrastructual findings were observed from neurons in hippocampal CA1 in NC and HC group.In FS group,the neuronal degeneration and edema,the mitochondrial degeneration and edema,the mitochondrion ridge obscured or disappeared.2.Cortisol levels in serum and hippocampus in FS group [(26.57 ? 15.94)?g/L and((4.11)?1.74)?g/L,respectively] were significantly lower than those in HC group [(40.04 ? 15.72)?g/L and(6.70?3.45)?g/L,respectively](P0.05).Positive correlations were demonstrated between serum cortisol level and hippocampus cortisol level(r=0.40 P

0.05).Conclusions Frequent FS might not change the expression levels of IL-6 and TNF-? in hippocampus.IL-6 and TNF-? might not play a role in development of FS induced brain damage.