Objective:To apply chromogenic in situ hybridization(CISH)for detection of HER2 gene amplification in breast cancer tissues and to discuss some modifications of the CISH method.Methods:HER2 gene amplification was detected by CISH in 60 breast cancer specimens with an immunohistochemical score over 2+.The correlation between the results of IHC and CISH was analyzed.Our experience in CISH manipulation was summarized and optimization to CISH was discussed.Results:CISH identified gene amplification in 91%(40/44)specimens with an IHC score of 3+ and in 50%(8/16)specimens with an IHC score of 2+.The total concordance rate between IHC and CISH was 80%(48/60,P

Acupuncture Therapy ; Adolescent ; Humans ; Male ; Sleep Wake Disorders ; therapy ; Treatment Outcome

AIM: To study the decomposition reaction kinetics of aqueous salvianolic acid B(Sal B). METHODS: HPLC was applied to determine Sal B's content of samples.Relationship between Sal B's content and heating time was regressed. RESULTS: Decomposition reaction of Sal B's aqueous solution was first order reaction.The effect of temperature on reaction rate of Sal B's decomposition was higher than pH value.At lower temperature(50℃),reaction rate constant K of Sal B's decomposition was very low and it changed very little with pH values. CONCLUSION: Water extraction process of Salvia Militiorrhiza should avoid applying high temperature,alkaline condition and long heating time in order to reduce loss and decomposition of Sal B,and then also increase Sal(B's) content in the extract.

Objective To evaluate the effect of sitaxsentan on renal microcirculation in beagle dogs undergoing cardiopulmonary bypass(CPB)when ultrasound microbubble angiography was used to monitor renal microcirculation.Methods Eighteen male Beagle dogs,weighing 10-15kg,aged 2-4 yr,were allocated into 3 groups(n=6 each)using a random number table:sham operation group(Sham group),CPB group and sitaxsentan group(S group).Sitaxsentan 0.7 mg/kg was infused over 30min starting from 1 h before CPB in group S.Before CPB(T1),at 1 h of CPB(T2),at the end of CPB(T3)and at 2h after the end of CPB(T4),the time-intensity curve of renal parenchyma perfusion was obtained using ultrasound microbubble angiography,and quantitative parameters including the slope rate of ascending curve(A),area under curve(AUC),derived peak intensity(DPI)and time to peak(TTP)were fitted.Results Compared with Sham group,the value of A was significantly decreased at T2-4,AUC and TTP were increased at T3,4,DPI was decreased at T4 in renal cortex and medulla in CPB group,and the value of A was significantly decreased and TTP was increased at T2-4,AUC was increased at T3,4(P<0.05),and no significant change was found in DPI in renal cortex and medulla in S group(P>0.05).Compared with CPB group,the value of A was significantly increased and AUC and TTP were decreased at T3,4 in renal cortex and medulla(P<0.05),and no significant change was found in DPI in renal cortex and medulla in group S(P>0.05).Conclusion Sitaxsentan can improve renal microcirculation in beagle dogs undergoing CPB.

Objective To explore the diagnosis value of serum cystatin C (Cys C),neutrophil gelatinase-associated lipocalin (NGAL) and urinary interleukin-18 (IL-18) levels in critically cases from pediatric Intensive Care Units (ICU).Methods 114 cases from June 2015 to January 2017 in Xidian Group Hospital were enrolled in the study.According to whether cases secondary to AKI,they were divided into AKI group (64 cases) and non-AKI group (50 cases).At same time 50 healthy cases were selected as the control group.The Serum creatinine (Scr),urinary nitrogen (BUN),Cys C,NGAL and urinary IL-18 levels were measured in each subject.The relationship between the indexes of AKI group was analyzed by Pearson analysis.The value of serum Cys-C,NGAL and urinary IL-18 in the diagnosis of AKI was analyzed by receiver operating characteristic (ROC) curve.Results Serum Cys-C,NGAL and urinary IL-18 levels of the AKI group were higher than that of the non-AKI group and the control group,the difference had statistical significance (t=3.137～28.642,t1 =7.653～33.672,all P＜0.05).The levels of serum Cys-C and NGAL were positively correlated with Scr levels (Beta=0.273,0.514,all P＜0.05).The urinary IL-18 levels were negatively correlated with serum albumin (Alb) (Beta =-0.342,P＜0.05).The area under the ROC carve (AUC) of serum Cys-C,NGAL and urinary IL-18 was 0.872 (95％ CI:0.831～0.936),0.823 (95％ CI:0.641～0.925) and 0.714 (95％CI:0.598～0.833).Conclusion The levels of serum Cys-C and NGAL were elevated earlier than Scr,and it can be used as reliable indicators of early diagnosis of early cases AKI in ICU.

Objective: To understand the survival status and influencing factors of HIV/AIDS patients with highly active antiretroviral therapy ( HAART ) among drug users in Yili Prefecture, Xinjiang from 2005 to 2019, so as to provide references for reducing AIDS mortality. Methods : The demographic information, clinical stage, baseline CD4+T lymphocyte ( CD4 ) level and treatment status of HIV/AIDS patients with HAART in Yili Prefecture from 2005 to 2019 were collected through AIDS Antiretroviral Therapy Information System. The survival rate was calculated by the life table method. The influencing factors for survival time were analyzed by Cox proportional hazard regression model. Results: Totally 1 935 patients were recruited, the median age receiving HAART was 37 years old and the median CD4 counts was 293/μL. The cumulative survival rates at 1, 5, 7 and 10 years were 97%, 78%, 73%, and 66%, respectively. The multivariate Cox proportional hazards regression analysis showed that the patients with body mass index of 18.5-<28.0 kg/m2 ( HR: 0.391-0.656, 95%CI: 0.234-0.958 ), baseline CD4>200/μL ( HR: 0.354-0.667, 95%CI: 0.232-0.841 ) , or missed medication in the last 7 days ( HR=0.009, 95%CI: 0.001-0.061 ) had lower risk of death; the patients with WHO clinical stage of Ⅱ-Ⅳ ( HR: 1.479-2.311, 95%CI: 1.004-3.288 ) or treatment delay ≥1 years ( HR: 1.287-1.388, 95%CI: 1.029-1.826 ) had higher risk of death. Conclusions The 5-year cumulative survival rate of HIV/AIDS patients with HAART in Yili Prefecture is 78%. Body mass index, baseline CD4 level, WHO clinical stage, treatment delay and missed medication in last 7 days were the influencing factors for survival time.

This paper presents some ideas and practices to realize the homogeneity quality management process within the Beijing Children Hospital Group,the largest specialized medical group in the country.This research aims at providing references and thoughts on homogeneity quality management for trans-regional medical unions in the country.

Objective To review the clinical features , diagnosis , prognosis and treatment of polycythemia vera ( PV) complicated with acute coronary syndrome ( ACS) .Methods The clinical data of 2 PV patients complicated with ACS admitted to Peking Union Medical College Hospital ( PUMCH ) were retrospectively analyzed and the recent literatures were reviewed .Results Case 1 was a 65-year old man who had been diagnosed PV with a positive JAK2V617F mutation 3 years ago.At presentation, the patient was suffering from recurrent angina pectoris , and coronary angiography revealed that there was a severe ( 80%) stenosis in the middle segment of left circumflex and a Xience V stent was implanted .After the percutaneous transluminal coronary intervention ( PCI ) , secondary prevention for coronary heart disease and hydroxyurea for PV were given and the patient has been followed up regularly for more than three years and he is going well.Case 2 is a 44-year old man who was diagnosed PV with a positive JAK 2 mutation 3 years ago and hydroxyurea, interferon, aspirin was prescribed.Then splenic infarction, thrombosis of splenic vein,regional portal hypertension , severe varices of fundus of stomach and upper gastrointestinal bleeding developed with him.Two months ago , an AMI of inferior wall occurred and the angiographic findings demonstrated an thrombotic lesion in the proximal segment of the right coronary artery with a moderate stenosis ( 60%);1 month ago an AMI of anterior wall developed and coronary angiography discovered that there were diffuse thrombus in the proximal segment of left anterior descending artery with a severe stenosis ( 90%) and a complete occlusion in the right coronary artery .After double antiplatelet therapy with anticoagulation therapy of warfarin was given , the patient recovered gradually .Conclusions PV complicated with ACS is relatively rare.According to recent studies, positive JAK2V617F mutation, leukocytosis, age >65 years and positive history of thrombosis are the most important predictors of cardiovascular events .Clinicians should design individualized treatment strategies for patients on the basis of clinical features , coronary angiography findings and complications .For those with thrombotic lesion in the coronary artery due to the hypercoagulative state caused by PV, it should be cautious to carry out a coronary revascularization treatment .

Objective To investigate the molecular mechanism of retinoic acid in targeted treatment of craniopharyngioma by detecting the expression of RARαand PPARβ/δin craniopharyngioma cells and analyzing the correlation between the expression and effect of retinoic acid. Methods The expression of RARα and PPARβ/δ in craniopharyngioma cells from 31 patients cultured in vitro was quantified by reverse transcription-PCR. The inhibition rates of RA on craniopharyngioma with different expression of RARα and PPARβ/δ were detected by using MTT assay, and the correlation between the expression of RARα and PPARβ/δand the effect of RA was analyzed. Results 1. The RT-PCR results showed that the expression levels of PPARβ/δand RARα mRNA were different. Craniopharyngioma cells from 31 patients in primary culture were divided into three groups according the expression levels of nuclear receptor: PPARβ/δ>RARα group, RARα>PPARβ/δ group and RARα>>PPARβ/δ group. 2.MTT results showed that the inhibition rate of RARα>>PPARβ/δgroup was significantly higher than the other groups under same drug, the differences had statistical significance ( <0.01) . Conclusions The expression of PPARβ/δ, RARα can be used to evaluate the effect of RA in treatment of craniopharyngioma. The craniopharyngioma with low-expression of PPARβ/δ is more sensitive to RA. Targeting higher RARα or targeting lower PPARβ/δ is beneficial to the treatment of craniopharyngiomas.

Objective To compare the efficacy difference of Green Forsythiae Fructus and Ripe Forsythiae Fructusby using Lianqiao powder and Yinqiao powder in the classic formula; To provide experimental evidence for the guidance of one for dual-use of the Forsythiae Fructus. Methods The guinea pig sore model was made with Staphylococcus aureus. 40 guinea pigs were randomly divided into blank group, model group, Lianqiao powder Green Forsythiae Fructus group and Lianqiao powder Ripe Forsythiae Fructus group. The blank group and the model group were fed with normal saline, while Lianqiao powder Green Forsythiae Fructus group and Lianqiao powder Ripe Forsythiae Fructus group were treated with 1.2 g raw medicine/kg liquid Lianqiao powder Green Forsythiae Fructus and Lianqiao powder Ripe Forsythiae Fructus for 7 d. The symptom score, blood and pathological changes of guinea pig soreness were observed. The model of acute lung injury was induced by 10% LPS aerosol inhalation. 40 rats were randomly divided into blank group, model group, Yinqiao powder Green Forsythiae Fructus group and Yinqiao powder Ripe Forsythiae Fructus group. The blank group and the model group were fed with normal saline, while Yinqiao powder Green Forsythiae Fructus group and Yinqiao powder Ripe Forsythiae Fructus group were treated with 4 g raw medicine/kg liquid Yinqiao powder Green Forsythiae Fructus and Yinqiao powder Ripe Forsythiae Fructus for 10 d. The levels of IL-6, TNF-α and IL-1β in the lung lavage fluid were detected. Results The effect of Lianqiao powder Green Forsythiae Fructus on the wound healing of guinea pig sore wound was faster than that of Lianqiao powder Ripe Forsythiae Fructus, but there was no significant difference between Lianqiao powder Green Forsythiae Fructus group and Lianqiao powder Ripe Forsythiae Fructus group in inhibiting the secretion and pathological changes of guinea pig sore wound. The levels of IL-6, TNF-α and IL-1β in Yinqiao powder Green Forsythiae Fructus group was lower than that in Yinqiao powder Green Forsythiae Fructus group, without statistical significance. Conclusion It is verified that there is efficacy differences between Green Forsythiae Fructus and Ripe Forsythiae Fructus in the different Chinese herbal compound.