Objective To determine the early diagnostic value of serum C -reactive protein (CRP)、 total complement( CH50 ) activity and complement 3 (C3) concentration of premature women in the subclinical infection.MethodsSolid phase enzyme linked immunosorbent assay ( ELISA method ) was used for measurements of serum CRP levels. According to modified Mayer simple tubular colorimetric method and simple agar immunodiffusion method, we determined the CH50、C3 concentration respectively.Results Premature women with subclinical chorioamnionitis showed higher serum CRP concentration than that of normal pregnancy women (P<0.01). In the subclinical chorioamnionitis, the more serious the infection, the higher the CRP concentration, while CH50 and C3 concentrations were correspondently decreased. Serum CRP concentration in premature labor was the most sensitive index that suggested subclinical chorioamnionitis. ConclusionsSerum CRP、CH50 and C3 concentrations in premature labor are simple,reliable and accurate indexes for early diagnosis of subclinical infection.

This study examined the effect of MMP9 gene on the biological behaviors of trophoblasts and explore the relation between MMP9 gene and the "superficial implantation of placenta". In vitro cultured trophoblasts (TEV-1 cells) were transfected with synthesized double-stranded MMP9 RNA (siRNA) by using lipofectamine2000™ technique and the expressions of MMP9 mRNA and protein and the growth and invasiveness of the TEV-1 cells were determined. Our results showed that siRNA transfection could significantly inhibit the expression of MMP9 gene in the TEV-1 cells and the growth and invasiveness of the TEV-1 cells transfected RNA was significantly reduced (P<0.01). We are led to conclude that silencing of MMP9 gene with siRNA can inhibit the growth and invasiveness of trophoblasts and increasing the expression of MMP9 might help prevent and treat preeclampsia.

With the quick development of information network,a new disease-Internet Addiction has been paid more and more attention,and how to prevent and cure it has become one important problem that need to be resolved.At present,the rate of Internet Addiction among medical students is rising year by year,so we should make a united effort to prevent and control Internet Addiction among medical students.This article tries to explore how to prevent and control medical students'Internet Addiction from the point of view of law and ethics and expect to prevent them form being patients of Internet Addiction and help them thrive promptly.

OBJECTIVE: To explore the mechanism of Sanqi Qiancao Recipe (SQR) in treating metrorrhagia caused by copper intrauterine device (IUD) in rabbits and to provide experimental evidence for preventing and treating this disease. METHODS: Fifty-six rabbits were randomly divided into seven groups, which were normal control group, sham-operation group, untreated group, indomethacin-treated group, low-dose SQR-treated group, medium-dose SQR-treated group and high-dose SQR-treated group. Copper IUD insertion was operated in rabbits of the last five groups. Rabbits in the last four groups were treated orally with indomethacin and low-, medium- and high-dose SQR respectively for a week. Rabbits in the untreated group, normal control group and sham-operation group were given distilled water orally. Hematocrit, blood viscosity at low, medium and high shear rate, plasma viscosity and blood sedimentation were examined after treatment. RESULTS: The hematocrit, blood viscosity at low, medium and high shear rate and plasma viscosity were higher in the untreated group than those in the normal control group with significant differences (P<0.01) while those indexes in low-, medium- and high-dose SQR-treated groups were significantly lower than those in the untreated group (P<0.05 or P<0.01). CONCLUSION: SQR can lead to a decrease in blood viscosity and improve the blood flow, which may be one of the mechanisms of SQR in treating metrorrhagia after copper IUD insertion.

Background Ostrich acellular corneal stroma possesses a similar constitution to human corneal stroma,so it is expected to become one of ideal biological corneal carriers.Objective This study was to investigate the immunogenicity of acellular stroma carrier of ostrich cornea and offer the information for the development of industrialization and clinical use of acellular stroma carrier of ostrich cornea.Methods Twenty fresh ostrich eyeballs and 20 porcine eyeballs were collected.Acellular corneal stroma carriers of ostriches and pigs were prepared using low temperature freezing joint enzyme digestion method and desiccant dehydration method and sterilized by cobalt-60 irradiation.The corneal stroma carriers were preserved using drying and dehydration method.Forty-five male BALB/c mice were randomly divided into the sham operation group,ostrich acellular corneal stroma group and porcine acellular corneal stroma group.Acellular corneal stroma carriers of ostriches and pigs(wet weight after rewatering was 10 mg/piece) were subcutaneously implanted to the back of BALB/c mice,respectively.Wound healing and inflammatory response on the operative site were observed,and phenotype and activating rate of CD4+,CD8+ and CD25+in peripheral blood of mice were dynamically detected 7,14 and 28 days after ectopically implantation of heterogeneous corneal stroma by immunofluorescence labeling and flow cytometry analysis.Results No swelling and exudation were seen in the skin of operative site of the mice with a good healing of wound after surgery.There were no significant differences in the activating rates of CD4+,CD8+ and CD25+ cells in the peripheral blood of mice among the sham operation group,the porcine acellular corneal stroma group and ostrich acellular corneal stroma group in the three time points after surgery(CD4+:F=0.74,P=0.50;F=0.39,P=0.05;F=3.46,P=0.58.CD8+:F=1.75,P=0.21 ;F=1.14,P=0.35;F=0.78,P=0.48.CD25+:F=0.52,P=0.61 ;F=3.53,P=0.62;F=2.42,P=0.13).Conclusions The ostrich acellular heterogeneous corneal stroma carrier possesses low immunogenicity.It is inferred that ostrich acellular corneal stroma carrier can be used in heterogeneous corneal transplantation.

Objective To evaluate the curative effects of carbon nanoparticles on central lymphnode dis -section in papillary thyroid carcinoma ( PTC) .Methods 72 PTC patients were randomly divided into two groups:carbon nanoparticle group(n=32)and the control group(n=32).Patients in the carbon nanoparticle group were injected with carbon nanoparticles during surgery .Patients in the control group had conventional surgery .The number of lymph nodes being dissected ,lymph node metastasis , and the rate of hypoparathyroidism were compared between the two groups .Results The number of lymph nodes dissected in nanoparticle group ( n =312 ) was much bigger than that in the control group (n=189)(P<0.01;t=8.476).The incidence of hypoparathyroidism in nanoparticle group(n=1)was much lower than that in the control group (n=8)(P<0.05;χ2 =4.571).The metastasis of lymph nodes has no significant difference between the two groups (P>0.01;χ2 =1.048).Conclu-sions The lymphatic tracer technique may improve the number of lymph nodes dissected in central region of PTC and reduce parathyroid gland damage .

AIM: To explore the putative effects of sterigmatocystin (ST) on human help T lymphocyte(Th1)function. METHODS: The effects of ST on interferon-?(IFN-?)secretion of human peripheral blood mononuclear cells(HPBMc) in vitro were determined with ELISA method. RESULTS: The effects of ST on IFN-? secretion of HPBMc in vitro were closely dependent on ST concentrations. ST at relatively lower concentrations (0.03125-0.12500 mg/L) showed inhibiting effects on IFN-? secretion. While, stimulating effects could be found when ST concentration was above 0.25mg/L. The highest level was seen in ST 1 mg/L group ( P

Objective:To investigate the syndromes distribution in patients with dysfunctional uterine bleeding(DUB) related to kidney deficiency, and to provide the basis for standardizing the DUB syndrome differentiation of kidney deficiency. Methods: DUB Patients with kidney deficiency were chosen and accepted epidemical survey through the questionnaire, then the frequency and constituent ratio of each syndrome were calculated. Results: In 612 cases of DUB patients with kidney deficiency, there were 102 patients with simple syndromes covered 16.67%, and 510 patients with compound syndromes covered 83.33%. In patients with simple syndromes, the common syndromes were kidney-yin deficiency(45,44.12%) and kidney-qi deficiency(45,41.18%). And the syndromes of kidney-qi deficiency and kidney-yin deficiency were often respctively complicated with liver stagnation(68,11.09%; 113,18.43%), blood defi ciency(57,9.30%; 99,16.15%) and blood stasis(57,9.30%; 99,16.15%), the syndrome of kidney-yang deficiency usually complicated with spleen-qi deficiency(75,12.23%). The syndrome of kidney-qi deficiency(186,57.23%) was commonly-seen in the patients with ovular DUB, while the syndromes of kidney-qi(146,50.69%) and kidney-yin deficiency(111,38.54%) were frequently-seen in the patients with anovular DUB. Conclusion: In clinic, the compound syndromes were commonly seen in patients with DUB due to kidney deficiency, the complicated syndromes of kidney deficiency were liver stagnation, spleen-qi deficiency, blood deficiency and blood stasis..

Objective To select the largest non-toxic leaching solution concentration through the experimental observation of the cytotoxicity of the ostrich acellular corneal stromal leaching solution to the Chinese hamster lung fibroblasts cells(CHL) for the further chromosome distortion experiment.Methods The leaching solution made from the ostrich acellular corneal stromal material was diluted with concentrate of 1 ∶ 2,1 ∶ 4 and the original concentration were used to culture with the CHL cells,the negative and positive control were also set up at the same time,to evaluate the impact on cell growth after 24 hour by MTT colorimetric method.Results The leaching solution diluted with 1∶4 was non-toxic,and could promote the growth of the cells.Conclusion Combined with the results of classification and cell morphological features,this cytotoxicity test can be used to screen the best benchmark non-toxic concentrations for the chromosome aberration test of the CHL cells.

Objective To investigate the related factors of postoperative hypocalcemia after thyroid carc-er surgery.Methods 346 cases of thyroid carcer patients undergoing surgery from Jan .2013 to Dec.2013 in the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed .Results 129 cases developed hepocalcemia after thyroid surgery .Among the related factors that may cause postoperative hypocalcemia , the scope of surgery , parathyroid injury and secondary surgery might play important roles .Conclusions The inci-dence of postoperative hypocalcaemia is high after total thyroidectomy .Patients with reoperation and lymph node dissection have an increased rate of postoperative hypocalcaemia .In order to reduce hypocalcaemia incidence ,sur-gons need to protect parathyroid blood supply in thyroid surgery and give calcium after surgery .