Objective To confirm that astrocytes from cerebral cortex of newborn rat can be the target cells of Hantaan virus (HTNV)and Seoul virus (SEOV)infection and to observe changes of astrocytes after different infection time. Methods Astrocytes were prepared from cerebral cortex of newborn rat, and then infected with HTNV and SEOV. The established virus infections were confirmed by detection of virus nucleocapsid protein (NP) and S segment RNA in astrocytes using double-label immunofluoreseence, Western-blot and reverse transcriptase-polymerase chain reaction (RT-PCR). Results The astrocytes from cerebral cortex of newborn rat were cultured successfully in vitro, which could be infected by HTNV and SEOV. The number of infected astrocytes and the virus titer in the infected astrocytes kept on increasing along with the extended infection duration. Conclusions Astrocytes from cerebral cortex of newborn rat are the target cells for HTNV and SEOV infection. Then establishment of in vitro cultured astrocytes model for Hantaviruses infection will be helpful for the study on the pathogenesis of hemorrhagic fever with renal syndrome.

Objective To investigate the prognostic value of the changes in serum CA125 level during chemotherapy post-surgery in patients with advaneed epithelial ovarian carcinoma.Methods A retrospective analysis was conducted on 142 patients with stage Ⅲ-Ⅳ epithelial ovarian carcinoma who had primary treatment in the Cancer Center of the Sun Yat-sen University during January 1998 to December 2003.The changes in CA125 levels during chemotherapy post-surgery in patients were analyzed.The survival outcomes of patients with various levels of CA125 were studied using Kaplan-Meier method.Multivariate Cox regression model Wag used to aggess the correlations between survival and the change in CA125 level during chemotherapy and other prognostic factors.Results The 3-year overall survival(OS)was 64%,71%,and 64%respectively in patients with different pretreatment CA125 levels(≤500,>500-1500 and>1500 kU/L;P>0.05).The CA125 level was normalized(0-35 kU/L)in 77(54.2%)patients after three cycles of postoperative chemotherapy.It revealed significant differences in 3-year OS(84%vs.42%)and 5-year OS(56%vs.15%)between the patients with normalized and elevated CA125 levels(n=48)after three cycles of chemothempy(P<0.01).Multivariate analysis showed that residual tumor size>1 cm(P<0.01)and elevated CA125 after three-cycle postoperative chemotherapies(P<0.01)were two independent factors related to survival.In the subgroup of optimal cytoreduction(residual tumor size≤1 cm),the 3-year and 5-year OS rate were 88%and 64%for patients with normalized CA125 level after three cycles of chemotherapy respectively,while only 52%and 18%for patients with elevated CA125 level(P<0.01).Similarly,even in the suboptimal cytoreduction group,the 3-year and 5-year OS were also significantly increased for patients with normalized CA125 level after three cycles of chemotherapy post-surgery,as compared with patients with elevated CA125 level(74%vs.33%in 3-year OS,32%vs.13%in 5-year OS;P<0.01).Conclusions CA125 level after three cycles of chemotherapy post-surgery is an independent predictor of survival for advanced ovarian carcinoma.Whatever the patients undergo,optimal or suboptimal cytoreduction,ifthe CA125 becomes normalized after three cycles of chemotherapy,they would have more favorable prognosis than those with elevated CA125 after three cycles of chemotherapy.

Objectives To investigate the distribution of uridine diphosphate-glucuronosyltransferase 1A1 (UGT1A1) gene promoter polymorphism and its relation to the toxicities caused by irinotecan in Chinese patients with cervical cancer and ovarian cancer.Methods Sixty-four blood samples were taken from the patients with ovarian cancer and cervical cancer.The DNA was extracted and amplified with PCR.Then,the sequences of UGT1A1 gene promoter were detected by capillary electrophoresis allele fragment analysis (size-based analysis) methods.The relationship between UGT1A1 gene promoter polymorphism and the toxicity caused by irinotecan was analyzed.Results In all the patients,TA 6/6 was the most common genotype of UGT1A1 gene promoter (44 cases),accounting for 69％ (44/64),followed by genotype of TA 6/7 ( 17 cases,27％,17/64),while genotype TA 7/7 was rare (3 cases,5％,3/64).The genotypes of UGT1A1 gene promoter was an independent factor for the occurrence of delayed diarrhea (P =0.040,OR =4.228,95％ CI:1.065 - 16.785 ) but not for neutropenia ( P =0.068,OR =3.659,95％ CI:0.911 - 14.700).The patients with both genotype TA 6/7 and TA 7/7 presented much higher risk of delayed diarrhea and neutropenia than those with TA 6/6 ( all P =0.001 ).Conclusions UGT1 A1 gene promoter polymorphism may be a significant influencing factor for delayed diarrhea.The patients with both genotype TA 6/7 and TA 7/7 could present much higher risk for delayed diarrhea than those with TA 6/6,while genotype TA 6/6 may be the most common UGT1A1 promoter type in Chinese patients with cervical or ovarian cancer.

Objective To evaluate the effectiveness and safety of orbital decompression for compressive optic-neuropathy. Methods Fourteen eyes of twelve cases with Graves opthalmopathy and compressive optic-neuropathy undergone two orbital walls decompression with the follow-up period of more than 3 months were analyzed. Results The effect of complete closure of palpebral fissure was attained in all of the postoperative eyes and the visual acuity was increased in eleven eyes, remained no change in two eyes and decreased in one eye. The mean value of the recession of exophthalmic eyes after operation was mean 4 0 mm. Conclusion Two orbital walls decompression is an effective method for compressive optic-neuropathy in Gaves ophthalmopathy.

OBJECTIVE:To study the methods for determination of the content of ca lcium dobesilate METHODS:The determination was carried out by complexometric t itration,UV-spectrophotometry,precipitation or cerimetric titration RESULTS & CONCLUSION:The cemetric titration is simple in operation,accurate in result and sharp in end point

Clinically rare with an acute or subacute onset,Hashimoto's encephalopathy (HE) is characterized as autoimmune encephalopathy with elevated anti-thyroid autoantibodies.If timely diagnosed and treated,its prognosis is often fair.Four HE cases admitted from January 2012 to June 2014 were analyzed with a literature review.HE 4 cases had a significantly higher level of thyroperoxidase (TPO) while the lowest increase over four folds.There were cognitive decline,memory loss and even coma.And 50％ had abnormal electroencephalogram (EEG) consistent with radiographic lesions.In short,EEG may aid an early diagnosis of HE.

Objective To explore the influence of salvianolic acid B(SalB) to blood brain‐barrier(BBB) in vitro oxygen/glu‐cose deprivation and reintroduction .Methods We used the human brain microvascular endothelial cells and C6 cells to build BBB model that in vitro ,and the models was divided into normal groups ,experiment groups ,treatment groups .The Earle′s liquid and the condition of 93% N2 ,2% O2 ,5% CO2 replaced the normal culture environment to simulate environment of oxygen /glucose depriva‐tion and reintroduction .The changes of BBB permeability was detected by the horseradish peroxidase permeability test .The tight junctions(TJs) was detected by immunofluorescence and electron microscope .Results The permeability of treatment group was significantly lower than the experiment group (P < 0 .05) ;The TJs of normal group was continuous and density ;the experiment group′s TJs was interruption and osteoporosis ;and the observation of treatment group′s TJs was between of the two group above . Conclusion The SalB can directly protect the BBB during oxygen /glucose deprivation and reintroduction ,and decrease the permea‐bility .The investigation also provided the research foundation for the SalB to protect the BBB .

Purpose To observe the effect of Xiange Granule on osteoporosis in ovariectomized rat model and explore the mechanism of prevention and treatment of osteoporosis.Methods 60 female rats were randomly divided into blank control group, model group, Xiange Granule low, middle and high-dose group, CEE3 group of 6 groups. The method used ovariectomy made animal model of postmenopausal osteoporosis. Gavage after 3 months measured femur bone mineral density, calcitonin, bone gla protein and estradiol concentration, observed cancellous bone of femur with electron microscope.Results Xiange Granule could significantly increase the bone mineral density, calcitonin, bone gla protein and estradiol levels of the ovariectomized rat model and improve the microstructure of cancellous bone.Conclusion Xiange Granule is effective for prevention and treatment on osteoporosis.

OBJECTIVE:To study the pharmacokinetic characteristics of arotinoid ethyl ester (RO) in Beagle dogs in vivo. METHODS:18 Beagle dogs were randomly divided into high-dose,medium-dose,low-dose groups (40,20,10 mg/kg),6 in each group. Rats were intragastrically administrated related doses of RO. Blood sample 1 mL was taken after 0.5,1.0,2.0,4.0, 6.0,8.0,12.0,24.0,36.0,48.0,60.0,72.0 h of administration,and plasma was separated. RP-HPLC was used to determine the concentrations of RO and its metabolite arotinoid acetic acid(RA)in plasma. Using DAS 2.0 software for fitting,pharmacokinetic parameters were calculated. RESULTS:Both RO and RA showed a distribution in one-compartment model in dogs in vivo. The cmax of RO high-dose,medium-dose,low-dose groups in dogs in vivo were (0.42 ± 0.87),(0.54 ± 0.09),(0.31 ± 0.05)μg/mL;t1/2z were(1.20±0.33),(1.14±0.45),(1.90±0.65)h;AUC0-72 h were(3.55±0.90),(0.87±0.50),(0.92±0.31)μg·h/mL;and CL/F were(11.99±4.01),(19.87±10.79),(12.29±7.57)L/(kg·h). The cmax of RA high-dose,medium-dose,low-dose groups in dogs in vivo were (32.51 ± 4.04),(19.87 ± 2.78),(16.55 ± 4.06)μg/mL;t1/2z were (7.27 ± 4.20),(7.17 ± 4.20),(10.18 ± 4.01) h;AUC0-72 h were (408.14 ± 96.61),(333.39 ± 61.28),(286.55 ± 30.96)μg·h/mL;and CL/F were (1.30 ± 0.53)、(0.76 ± 0.87)、(0.54±0.10)L/(kg·h). CONCLUSIONS:Orally taking RO is easy to absorb with rapid elimination. Its active metabolite RA has longer accumulation time in vivo.

Objective To investigate the clinical and pathological characteristics between types 1 and 2 endometrial uterine cancers.Methods The clinical materials of 9 437 patients with uterine cancer were collected with retrospective analysis from 62 hospitals during 2000 to 2010.Results The mean age of type 1 endometrial cancers was less than type 2.There were more young patients in type 1 endometrial cancers.The mean menopause age of type 2 endometrial cancers was greater than type 1.The mean age of menarche,obesity,diabetes,hypertension,infertility,and nulliparous were not significant differences between types 1 and 2 endometrial cancers.There were more patients with advanced tumor,deep myometrium invasion,estrogen receptor (ERs) negative,progesterone receptor (PR) negative,P53 positive,lymph vascular space involvement,cervical stromal invasion,adnexal metastasis,and lymph node metastasis in type 2 endometrial cancers.Conclusions Type 2 endometrial uterine cancers occurred in elder people with more pathological risk factors and more malignant biological activities.