Background Wearing of soft contact lens,as one of the important methods to correct ametropia,has been widely applied at present.The clinically deleterious effects of soft contact lens have been reported,but researches about influence of apoptosis of corneal epithelial cells are scant.Objective This study was to detect and compare the ratio of apoptosis of corneal epithelial cells between the patients with contact lens wearing and without contact lens wearing,and explore the influence of soft contact lens wearing for long term on growth of corneal epithelial cells after injury.Methods A retrospective nest case-controlled study was designed.Forty eyes of 20 myopic patients with wearing of soft contact lens for ≥5 years and 40 eyes of 20 myopic patients without wearing of soft contact lens were included in Affiliated Hospital of Guiyang Medical College.All the patients received the off-flap epipolis laser in situ keratomileusis (Epi-LASIK) from 2010 October to 2011 June.The corneal flaps were collected during the surgery.The apoptosis of corneal epithelial cells was detected by flow cytometry(FCM),and the difference of apoptotic proportion between the two groups was compared using independent sample t test.Results The FCM scatter plot showed that compared to the without contact lens wearing group,the early stage of apoptotic cells with high staining annexin V and low staining proaium iodide (PI) were much more,and survival cells with low staining annexin V and PI were less,and necrotic and late stage of apoptotic cells with high staining of annexin V/PI were more in the with contact lens wearing group.The early stage of apoptosis proportion of corneal epithelial cells was (11.23 ± 5.31)％ in the with contact lens wearing group,and that in the without contact lens wearing group was (7.31± 5.43)％,showing a significant difference between them (t=2.754,P=0.008).Conclusions A long term wearing of contact lens induce more apoptosis of corneal epithelial cells,which can result in a disorder of structure and function of ocular surface during the wound healing stage.

Neuroendocrine tumor liver metastases (NETLM) is a uncommon advanced tumor disease.Patients with unresectable NETLM have a poor outcome.The management of unresectable NETLM is a clinical dilemma.However,Yttrium-90 radioembolization is a safe and effective treatment for NETLM patients.The median disease control rate is 87.1％ (64.7％ ～ 100％);the median overall survival time is 34.4 months;and the median overall survival rate of 1,2,and 3 years are 79.8％ (63％～100％),62％ (57％ ～62.5％),45.5％ (45％ ～ 46％),respectively.Although there is good result of Yttrium-90 radioembolization in treatment of unresectable NETLM,the safety and effectiveness should be further verified.

Diagnosis, Differential ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Phytotherapy ; Subarachnoid Hemorrhage ; diagnosis ; drug therapy ; Syndrome ; Vasodilator Agents ; therapeutic use

Objective:To explore the expression of aquaporin1 (AQP1) in human glioma tissues and its relationship with the clini-copathological parameters and prognosis of this tumor. This study also observed the function of AQP1 in the proliferation and invasion of LN229 glioblastoma cells. Methods:The expression of AQP1 in 135 cases of glioma was detected by immunohistochemical meth-od, and the correlation between AQP1 and pathological features of glioma was analyzed. The relationship of AQP1 with survival was al-so investigated using 103 specimens with complete clinical data. AQP1 was successfully transfected into LN229 cells with lentiviral vector, and the expression of AQP1 protein was tested by Western blot. Cell proliferation was detected by using methyl thiazolyl tetrazo-lium assay, whereas cell invasion was determined by Transwell assay. Results:The expression of AQP1 was positively correlated with pathological grading. High AQP1 expression was associated with poor prognosis (P<0.05). Moreover, the overexpression of AQP1 can significantly increase the proliferation and invasion of LN229 cells (P<0.05). Conclusion:AQP1 is closely associated with the progres-sion of glioma. Upregulation of the AQP1 expression promoted the proliferation and metastasis of glioma cells. These findings indicat-ed that AQP1 can function as a therapeutic target for glioma in future research.

Objective To determine the clinical value of comcombined detection of serum FT 3 ,FT4 ,TSH ,TRAb ,TPOAb on outcome of women who have hyperthyroidism during pregnancy .Methods 100 patients with hyperthyroidism during pregnancy and 102 healthy pregnant women was selected in this research .Results The difference between the disease group and control group was statistically significant(P<0 .05) .Conclusion The combined detection of serum FT3 ,FT4 ,TSH ,TRAb ,TPOAb may have special impact on outcome of pregnant women .

Objective To study the inner diameter and hemodynamics of ophthalmic artery(OA)and central retinal artery(CRA)in hyperuricemia by Enhance-flow(eFlow)imaging and spectral Doppler.Methods One hundred and one patients with hyperuricemia and 30 volunteers were selected,the inner diameter in eFlow imaging and the peak systolic velocities(PSV),the end diastolic velocities(EDV),the resistive index(RI)were measured,and pulsatility index(PI)of OA and CRA were measured by spectral Doppler.The 101 patients were divided into two groups according to the time of diagnosing hyperuricemia,one group had a diagnosis of hyperuricemia for more than five years and the other had such a diagnosis for less than five years.The data were compared by t-test.Then,the patients were further divided into a group of hyperuricemia combined with hypertension and the other without hypertension.The differences between the experimental group and the group of volunteers were carried out by One-way ANOVA,the comparison between two groups were analyzed with SNK.Results The RI(0.68±0.09)and PI(1.3±0.4)of OA in patients who were diagnosed as hyperuricemia for more than 5 years was higher[RI:0.63±0.09,PI:1.1±0.3(t=3.504,P=0.001 ;t=3.164,P=0.002)],the EDV[(6±3)cm/s]of OA was lower than those patients with a diagnosis of hyperuricemia for less than 5 years[(8±5)cm/s,t=1.988,P=0.049].The PSV[(11.5±3.5)cm/s]and EDV[(3.7±1.1)cm/s]of CRA in hyperuricemia combination hypertension group was lower,and the RI (0.88±1.40)was higher than hyperuricemia without hypertension group[PSV:(13.5±4.0)cm/s,EDV:(4.1±1.2)cm/s,RI:0.67±0.08].Conclusion By eFlow and spectral Doppler,we have found that hyperu-ricemia could accelerate OA and CRA atherosclerosis.The eFlow and spectral Doppler are valuable methods to study the hemodynamics in ophthalmic artery of patients with hyperuricemia.

Objective To evaluate the predictive performance of propofol target-controlled infusion (TCI) system incorporating the Schnider pharmacokinetic parameters in Chinese patients. Methods Forty ASA Ⅰ or Ⅱ patients, aged 25-45 yr, with body mass index 20-25 kg/m2 , scheduled for gynecological laparoscopic surgery un der general anesthesia, were enrolled in this study. Anesthesia was induced with TCI of propofol (target plasma concentration (Cp) 3 μg/ml) and remifentanil (Cp 4 ng/ml) . Propofol was infused by Orchestra TCI system incorporating the Schnider pharmacokinetic parameters. Tracheal intubation was facilitated with rocuronium 0.6 mg/kgafter the patients lost consciousness. The patients were mechanically ventilated. PETCO2 was maintained at 30-40 mm Hg. Anesthesia was maintained with TCI of remifentanil (Cp 4 ng/ml) and propofol (Cp 3-5 μg/ml) and intermittent iv boluses of atracurium 0.2 mg/kg. BIS value was maintained at 40-45. Venous blood samples were obtained at 15, 30, 45 and 60 min after pneumoperitoneum for measurement of blood propofol concentrations by high performance liquid chromatography with fluorescence detector. Performance error, median prediction performance error, median absolute performance error, wobble and divergence of propofol TCI system were calculated. Results The value for performance error was 21 % (13%), for median prediction performance error 6.7 % (37.4%),for median absolute performance error 19% (18%), for divergence - 0.65%/h (0.82%/h) and for wobble 16.3% (15.2% ) . Conclusion The accuracy of propofol TCI system incorporating the Schnider pharmacokinetic parameters is high in Chinese patients and its predictive performance is acceptable clinically.

Aquaporin 1 (AQP1) is a specific protein that transports water molecules through the cell membrane. AQP1 mainly ex-presses in the choroid plexus epithelial cells of the central nervous system and participates in the formation of cerebrospinal fluid. In gli-omas, AQP1 expresses in neoplastic astrocytes and vascular endothelial cells. AQP1 expression is increased in parallel with histological grade in gliomas. AQP1 expression in gliosarcoma cell line is induced by dexamethasone, platelet-derived growth factor, sodium chlo-ride, hypoxia, D-glucose, and fructose. AQP1 mRNA expression is upregulated with increasing dosage. Through the expression of AQP1 in gliomas and the existing research on its function, we suggest that AQP1 may participate in tumor angiogenesis and tumor-relat-ed edema. AQP1 is closely associated with glioma cell migration. The function of AQP1 and its mechanism has been elucidated. Thus, this protein can be used as a new therapeutic target to inhibit the metastasis and recurrence of gliomas.

Objective Cathepsin K (CTSK) played an important role in adipocyte differentiation.The activation of CTSK needs to convey by mannose-6-phosphate receptors (M6PR) in osteoclasts. The aim of the present study was to identify the effects of mannose-6-phosphate (M6P) in adipocyte differentiation and its underlying molecular mechanism. Methods Oil red O staining, accumulation of cytoplasmic triglycerides and glycerine release were used to assess its effects on adipocyte differentiation in the 3T3-L1cell line. The enzyme activity of CTSK was observed by laser confocal microscopy. The proliferation of 3T3-L1 preadipocytes was detected by MTT methods. mRNA expression of M6PR was determined by RTPCR. Results M6P could prevent adipocyte differentiation in a dose-dependent manner as evidenced by absence of triglyceride accumulation and glycerol content. Statistical significance was showed when the concentrations of M6P were 5.0 mmol/L and 8. 0 mmol/L respectively(P ＜0. 05). The mRNA expression of M6PR was detected during the whole process of adipocyte differentiation. With the increase of M6Pconcentration, enzyme activity of CTSK was inhibited in a concentration-dependent manner. MTT method showed that the absorbance at 570 nm of 3T3-L1 preadipocytes was 0. 057 ±0. 091, increased about 62. 9%at 10. 0 mmoL/L compared with the control group (P ＜ 0. 05 ). Conclusion M6P inhibits the terminal differentiation of adipocyte, which may be associated with its effect of blocking CTSK activity by competitive binding with M6PR.

To observe the effect of Astragali Radix polysaccharides (APS) on the learning and memory functions of aged rats, in order to explore its mechanism for improving the learning and memory functions. Natural aging female SD rats were selected in the animal model and randomly divided into the control group, the APS low-dose group (50 mg x kg(-1)), the APS high-dose group (150 mg x kg(-1)) and the piracetam-treated group (560 mg x kg(-1)). They were orally administered with the corresponding drugs for consecutively 60 days. Besides, a young control group was set. The learning and memory functions of the rats were tested by the open-field test and the Morris water maze task. The Western-blot method was used to observe the levels of relevant neural plasticity protein N-methyl-D-aspartate receptor (NMDA receptor) in hippocampus, calcium/calmodulin dependent protein kinase II (CaMK II), protein kinase (PKA), the phosphorylation level of CAMP response element binding protein (CREB) and the protein expression of brain derived neurotrophic factor(BDNF). In this study, the authors found that the learning and memory functions and the hippocampus neural plasticity protein expression of the aged rat group were much lower than that of the young control group (P < 0.01). Compared with the aged rat group, the APS group showed the significant improvement in the impaired learning and memory functions of aged rats and the up-regulation in the hippocampus neural plasticity protein expression. The results showed that APS may improve the learning and memory functions of aged rats by increasing the expressions of relevant neural plasticity proteins.
Aging ; drug effects ; metabolism ; psychology ; Animals ; Astragalus Plant ; chemistry ; Brain-Derived Neurotrophic Factor ; metabolism ; Cyclic AMP Response Element-Binding Protein ; metabolism ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Female ; Hippocampus ; drug effects ; metabolism ; Humans ; Learning ; drug effects ; Memory ; drug effects ; Polysaccharides ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate ; metabolism