This article introduces a new method: the chemical-activated luciferase gene expression (CALUX)assay for determine of dioxin,which is based on biological properly of a genetically modified cell line.The published thesis reports that the contents of dioxins in a same sample abtained from the CALUX assay and the internationally recoganized standard method for determination of dioxin: high resolution gas chromatography-mass spectrometry(HRGC-MS)showed perfectly positive correlation and well repeatibility. The CALUX assay presents less amount-required sample,shorter determination cycle and less expense compared with HRGC-MS assay. The CALUX assay can be used as a rapid screen assay for determination of dioxin in a large number of samples,and will be widely applied in the survey of dioxin pollution in environment.

Primary open angle glaucoma ( POAG) is one of the eye diseases which can lead to blindness. The early symptom of POAG is unconspicuous, however, it will result in irreversible optic never damage and visual field defect with the disease progress. As an index for diagnosing and evaluating the therapeutic effect of POAG, intraocular pressure ( IOP ) is simple and important. Clinically, although some treated patients have a target IOP at clinic time, the optic never damage still get worse. Researches indicate that higher nocturnal IOP and 24h IOP variation and lower nocturnal ocular perfusion pressure ( OPP) may be the reasons for this phenomenon. The following essay will give an overview of POAG,IOP and OPP according to the relevant literatures so that we can have a better understanding.

Objective To investigate the effect of atorvastatin on circulating endothelial progenitor cells (EPCs) and BP in hypertensive patients with normal lipid profiles.Methods Thirty-eight hypertensive patients were randomly to receive conventional anti-hypertensive drugs (n=18) or conventional anti-hypertensive drugs plus atorvastatin(20 mg QN)combination treatment (n=20).Eight healthy subjects were given atorvastatin (20 mg QN) for 8 weeks as control group.Before and after treatment,peripheral blood were drawn to isolate and culture EPCs.The circulating EPCs were identified by direct fluorescent staining under a laser scanning confocal micro- scope.EPCs populations were assessed using the colony forming unit assay (EPC-CFU) through a inverted phase contrast microscope 10 days after culture.Results After treatment,SBP was decreased (conventional treatment from 165.8?10.3 to 132.7?10.3 mmHg;combined group from 163.7?10.2 to 127.9?10.1 mmHg P

Objective To investigate the oncologic and reproductive outcomes after progestin treatment of complex endometrial hyperplasia(CEH) and grade 1 endometrial carcinoma(EC).Methods In a retrospective study, data were obtained for patients with CEH or grade 1 EC at presumed stage IA(without myometrial invasion) who wished to preserve fertility and were treated at the Peking Union Medical College Hospital, China, between January 1, 2000 and December 31, 2011.Patients had received oral medroxyprogesterone acetate(250-500 mg/d) or megestrol acetate(160-480 mg/d) for at least 6 months.Results Among 55 included patients, median age was 32 years(range 21-41 years).41(75%) achieved complete response after a median period of 6(3-24) months.Complete response was less frequent among obese than nonobese patients(4/12 [33%] vs 37/43 [86%];P=0.001).Disease recurrence was recorded in 10(24%) patients with complete response;the 5-year recurrence-freesurvival rate was 71%.Among the 33 patients who retained a desire to conceive, 17(52%) became pregnant.Conclusions Fertility-sparing management with oral progestin is effective and safe.Obesity is associated with a lower probability of long-term success.

Objective To explore the expressions of ER,PR and CerbB-2 in human papillary thyroid carcinoma,and their correlation with the clinical features.Methods The expressions of ER,PR and CerbB-2 were detected by immunohistochemistry in 89 papillary thyroid carcinoma samples and 13 nodular goiter samples.Results In papillary thyroid carcinoma samples,ER,PR and CerbB-2 were detected for 50.56 ％(45/89),43.82 ％ (39/89),24.72 ％ (22/89),respectively.In nodular goiter,ER,PR and CerbB-2 were detected for 15.38 ％ (2/13),7.69 ％ (1/13),0,respectively,there were significant differences between the two groups (x2 =5.649,P=0.017,x2 =6.211,P=0.013,x2 =4.097,P=0.043).The positive rates of PR were 56.26 ％(26/46) in without lymph node metastasis,compared with those lymph node metastasis 30.2 3％ (13/43) were significantly higher,the difference was statistically significant (x2 =6.239,P =0.012).Conclusion The expressions of ER,PR and CerbB-2 are significant higher in papillary thyroid carcinoma.The detection of ER,PR and CerbB-2 might be helpful for early diagnosis and prognosis of papillary thyroid carcinoma.

Humans ; Liver Diseases ; drug therapy ; prevention & control ; Oleanolic Acid ; analogs & derivatives ; therapeutic use ; Phytotherapy ; Saponins ; therapeutic use

Adolescent ; Adult ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Medicine, Chinese Traditional ; methods ; Ovarian Diseases ; physiopathology ; therapy ; Ovary ; physiopathology ; Phytotherapy ; Young Adult

Objective:To study the clinical significance of tumor tissue of patients with liver metastasis of colorectal cancer CD44,CD166 expression.Methods:Retrospective analysis clinical data in our hospital from Octobor 2008 to October 2013,these data from 76 patients with rectal cancer was divided into the test group ( liver metastasis group, n=40 ) and control group ( without liver metastases group, n=36 ) .All of specimens were identified with qualitative immunohistochemical analysis.Observation the positive expression of CD166/CD44, age, sex, clinical stage, invasion depth, lymph node metastasis, Dukes staging, pathological tissue differentiation parameter correlation and the survival rate.Results: In test group,the positive expression of CD44,CD166 groups were respectively 72.50%,85%;in the control group,the positive expression rates of CD44 and CD166 were 36.11%,41.67%.The two groups have significant difference(P<0.05).In test group,expression of CD44,CD166 has no significant difference(P>0.05) with age,gender, histological differentiation.However it showed significant difference with the depth of invasion, Dukes ( P<0.05 ) .In addition,the survival ratio of the test group was significant lower than control group(P<0.05).Conclusion: In rectal cancer,CD166 and CD44 are a hallmark of liver metastasis,rectal cancer,which could determine the process of development.To explore the expression of CD44 and CD166 is helpful to early diagnosis and treatment scheme of rectal cancer.

Congresses as Topic ; Diagnostic Errors ; Head ; surgery ; Humans ; Neck ; surgery ; Otolaryngology

Objective:To evaluate the impact of change in the hormone receptor (HR) status on the long-term outcomes of breast cancer patients treated with neoadjuvant chemotherapy (NAC).Methods:There were 215 patients for the HR status of their lesions before and after NAC.After surgery,59 cases were confirmed to have achieved complete remission of pathology,The expression of hormo ne receptors was not consistent in 63 patients before and after neoadjuvant chemotherapy.63 patients were divided into two groups,Group A:39 patients received standard endocrine therapy for 5 years after surgery and chemotherapy;Group B:24 patients were not treated with standard endocrine therapy after surgery and chemotherapy.Conclusions:The 3-year DFS rates were 77.4％ and 54.2％ in Group A and Group B patients,respectively,There was not statistical significancebetween the two groups.The 5-year overall survival rate for Group A patients was higher than that of Group B patients(74.3％ vs 45.8％,P=0.028),The difference was statistically significant.Conclusions:This study revealed that breast cancer patients with HR altered after NAC still benefit from standard endocrine therapy.