bution probability varied for metastasis of different location. Conclusion WB-DWI was a sensitive method for screening bone metastasis.

Objective:To investigate the mRNA and protein expression of suppressors of cytokine signaling in human villa and decidua of first trimester gestation.Methods:We first obtained villous tissues and decidual tissues from 38 women who had undergone selective termination at 7-9 weeks of normal gestation.The transcripts of SOCS1,SOCS2,SOCS3 in villous tissues and decidual tissues were detected by using semi-quantitative reverse transcriptase polymerase chain reaction.The mRNA of SOCS1,SOCS2,SOCS3 from cultured trophoblasts and decidual stromal cells were detected.Also the protein expression of 35 pregnant women were detected by western blot.Immunohistochemistry analysis revealed the location of SOCS1,SOCS2,SOCS3 in materno-fetal interface.IL-10 and IFN-? secreted by cells in vitro were detected by ELISA.Results:The expression of SOCS1,SOCS2,SOCS3 were found in mater-fetal interface,while positive expression of SOCS3 in villi/decidua was 73.7%/71.1%,and that of SOCS2 was 50.0%/39.5%,then SOCS1 expression was 34.2%/31.6%.The protein expression of SOCS1,SOCS2,SOCS3 were similar to the transcription level.SOCS1,SOCS2,SOCS3 were mainly expressed in villi and decidual stroma.Trophoblasts and decidual stromal cells were not found the expression of SOCS1,but the low level mRNA of SOCS2,SOCS3 without serum,and IL-10 secreted by them increased significantly(P

Objective To investigate the distribution of killer immunoglobulin-like receptor(KIR) genes in Qingdao Han population and its difference from other populations.Methods The KIR genotypes of 81 cascs were examined by PCR-SSP,and the gene frequencies were calculated and compared to those of other populations.Result Fourteen KIR genes and 2 pseudo genes were found and all had different gene frequencies.Conclusion All inhibit-gene frequencies are higher than their active-gene frequencies.KIR gene frequencies are different between the southern and northern Chinese Han people.Many of them increase gradually from the south to the north.The KIR gene distributions of Korean and Japanese populations are close to the Northern Chinese Han population.

Obej ctive To investigate the role of metastasis associated protein 1(MTA1)in estrogen reg-ulated expression of matrix metalloproteinase -9(MMP-9)and tissue inhibitor of metalprotease -1(TIMP-1) in estrogen receptor( ER ) positive breast cancer cells .Methods MTA1 knockdown cell model was generated based on MCF-7breast cancer cell line by transfected with MTA 1-shRNA.The mRNA and protein level of MMP-9 and TIMP-1 in wild type MCF-7(MCF-7WT)and MCF-7MTA1-shRNA before and after 17β-estradiol ( E2) treatment were examined by Real -time PCR and Western blot respectively .Results The MTA1-shRNA showed maximally 84.9%suppression of MTA1 expression in MCF-7,suggesting a satisfied MTA 1 knockdown cell model was established for subsequent experiments .After treated with E2 for 48 h,MCF-7WT showed an incre-ment of 46%(P<0.05)and 37%(P<0.05)of the mRNA and protein level of MMP -9 and a decrement of 32.3%( P<0.05)and 18.2%(P<0.05)of TIMP-1;MCF-7MTA1-shRNA showed a decrement of 32.3%(P<0.05)and 18.2%(P<0.05)of mRNA and protein expression of MMP -9 respectively but no significant differ-ence in TIMP-1 comparing with MCF-7WT before treated with Estradiol.After E2 treatment,MCF-7MTA1-shRNA didn′t show significant change of MMP -9 except decrements of 32.3%(P<0.05)and 18.2%(P<0.05)in the mRNA and protein levels of TIMP -1.Conclusion MTA1 may be involved in the pathway by which estrogen regulated the expression of MMP -9 but not TIMP-1 in ER positive breast cancer cells .

Objective To investigate the perception of anticoagulant treatment for atrial fibrillation (AF) in physicians from county-level hospitals.Methods Two hundred and ninety two physicians from 9 hospitals of Jiangsu,Henan,Zhejiang,Jiangxi provinces were enrolled in this cross-sectional survey from June to November 2013.A standard questionnaire was used in the survey,which consisted of questions on knowledge,awareness and concerns of physicians regarding the diagnosis of atrial fibrillation and administration of warfarin.Results Total 292 questionnaires were returned and 208 of them were finally analyzed.According to the reports of the physicians,the percentage of anticoagulant treatment was 30.0％ (10.0％-60.0％) in patients with rheumatic valvular AF,20.0％ (10.0％-50.0％) in patients with non-valvular AF and 80.0％ (40.0％-100.0％) in those with mechanical heart valve replacement.The most common concerns of prescribing warfarin were worries about the bleeding related to warfarin (74.0％,154),the necessary of monitoring INR (65.4％,136) and advanced age (44.7％,93).A half of physicians (51.0％,106) thought that ECG was the main means for diagnosis of AF and only 28.3％ (59) used both ECG and Holter as diagnosis procedure.Among the physicians who reported to use INR for monitoring warfarin administration,62.5％ (130) reported a target ranging 2-3 and one third reported a target INR ＜ 2.The proportion of the physicians who were aware of CHADS2 score and CHA2DS2-VASc score was 51.0％ (106) and 41.3％ (86),but only 15.4％ (32) and 6.3％ (13) of them knew the correct answer of the risk factors,respectively.Although 34.6％ (72) physicians were aware of HAS-BLED score,only 5.3％ (11) selected the 9 parameters correctly.68.3％ (142) physicians reported that vitamin K is the antidote for warfarin.Conclusion This study reveals the concerns and deficits in perception of anticoagulant treatment for AF patients in physicians of county-level hospitals,suggesting that education programs are needed to increase the prevalence of warfarin use in patients with AF.

Objective To establish stable and convenient atomic fluorescence spectrometry to determine selenium concentration.Methods The samples were digested by nitric acid-perchloric acid and the selenium was determined by hydride generation-atomic fluorescence spectrometry with step-flow injection technology in NaBH4 acid and 100 g/L K3Fe(CN)6 system.Results The relative standard deviation of the method was less than 5%,the concentration of detection limits was 0.81 ?g/L and the recovery rate ranged from 93.1% to 102.2%.Conclusion Atomic fluorescence spectrometry was convenient and reliable in determining solenium,the digest method of test tube was better than that of normal electrothermal board.

Objective To evaluate the effects of mindfulness-based stress reduction(MBSR) on fatigue and sleep quality for breast cancer patients undergoing chemotherapy. Methods Totally 96 patients with breast cancer under-going chemotherapy were assigned into the intervention group and the control group with 48 cases in each group from a tertiary hospital in Zhengzhou city. Both groups received routine care,and the intervention group also received 8 weeks of MBSR. The Revised Piper Fatigue Scale(PFS-R) and Pittsburgh Sleep Quality Index(PSQI) were used to assess fatigue and sleep quality of two groups during chemotherapy before the intervention(T1),after the interven-tion(T2) and 3 months after the intervention (T3). Results There were significant differences in sensory,behav-ioral,emotional and total fatigue scores between the two groups(P<0.05);the time effect on fatigue of the various dimensions scores and total fatigue scores was significant(P<0.05);sensory aspects,emotional aspects,behavioral aspects,and total fatigue scores were interfered between intervention and time factors(P<0.05). There were signifi-cant differences in sleep quality,fall sleep time,sleep time,sleep efficiency and sleep scores between the two groups(P<0.05);the time effect on sleep quality,sleep time, fall sleep time was significant(P<0.05);there were interac-tion effects between intervention and time on sleep quality,sleep time,sleep disturbance and sleep total score(P<0.05). Conclusion MBSR can effectively relieve fatigue and improve sleep quality for breast cancer patients undergoing chemotherapy.

AIM: To investigate the effect of chronic intermittent hypobaric hypoxia (CIHH) on the activity of adrenergic receptor(AR) in rabbit sino-atrial node (SAN) by intracellular recording.METHODS: New Zealand rabbits were randomly divided into three groups: control group (Con), 14 d CIHH treatment group (CIHH14) and 28 d CIHH treatment group (CIHH28). The CIHH rabbits were exposed to a simulated 5 000 m (oxygen 11.1%) hypobaric hypoxia in hypoxic chamber for 14 d or 28 d (6 h/d), respectively. SAN preparation was used and the transmembrane action potential was recorded by micropipettes. Isoproterenol hydrochloride (ISO, agonist of β-AR) and phenylephrine (PE, agonist of α_1-AR) at different concentrations (0.01, 0.1 and 1 μmol/L) were applied cumulatively to investigate the electrophysiological effect of the drugs on the rabbit SAN among Con, CIHH14 and CIHH28 groups, respectively. RESULTS: (1) CIHH didnt change the parameters of action potential of SAN recorded under basic condition. (2) ISO changed some parameters of AP significantly in a dose-dependent manner, including increases in the amplitude of AP (APA), maximal rate of depolarization (V_(max)), the velocity of diastolic (phase 4) depolarization (VDD), and rate of pacemaker firing (RPF). (3) The response of AP to ISO in CIHH rabbits was decreased significantly compared to that in Con animals. Under 1 μmol/L of ISO, the increases in VDD, RPF, APA and V_(max) in CIHH animals were smaller than those in Con animals (P<0.05). (4) No effect of PE (0.01, 0.1 and 1 μmol/L) on the parameters of action potential was observed. CONCLUSION: CIHH decreases the reactivity of β-AR, but has no effect on α_1-AR in SAN of rabbit.

Objective To investigate the reliability of using inhibitors including Phenylboronic acid (PBA)and Fqucloxacillin(FCC)in detecting derepressed hyperproduction and plasmid-mediated AmpC B-lactamases.Methods PBA and FCC were chosen as inhibitors and double-disk potentiation method and double-disk synergy method were used to detect positive and negative control strains of AmpC β-lactamases and 107 clinical isolates for AmpC β-lactamases production.The positive control strains included E.cloacae (029M),plasmid-mediated ACT-1 type of E.coli DH5a2919,MOX-1 type of k pheumoniae,LAT-2 type of E.coil.The negative control strains included E.cloacae 029(wild-type),E.coli SHV-1,E.coli SHV-2, E.coil SHV-5,E.coli TEM-1,E.coli TEM-3,k peumoniae SHV-18 and E.coli ATCC25922.We compared the results above with the three dimensional test(3-DT)to observe the accuracy in detecting AmpC-BLA.Results 3-DT together with PBA and FCC based inhibition tests showed the 4 positive control strains and the 9 negative control strains were determined as expected.AmpC-BILA was detected in 107 clinical isolates ofEnterobacteriaceaes.The positive rate of3-DTmethod is24.3%.The positive rates ofPBA.FCC double-disk potentiation method and double-disk synergy method are 30.8%(33/107),26.2%(28/107) and 23.4%(25/107),respectively.The conjugate results in two strains of P mirabilis and one strain of K.peumoniae were positive.They were all plasmid-mediated AmpC-Bi.A.There Was a higher false positive when using PBA and FCC-based double-disk potentiation method to detect the induction type of AmpC-BLA, but the accuracy of double-disk synergy method was high.Compared with the 3-DT,the coincidence rate using PBA and FCC-based double-disk synergy method is 99.1%.Conclusions Using PBA and FCC as inhibitors in the double-disk synergy test is a accurate and reliable method to detect AmpC-BLA regardless of derepressed hyperproduction type or plasmid-mediated type.

Objective To investigate the potential effects of vegetables and fruits (F&V) consumption on the prevention of hypertension in Chinese population of North China.Methods A cohort of 10 635 cases were established in Kailuan community in Tangshan city and Jingmei community in Beijing city in July 2012.After a mean follow-up time of 47.2 month,the potential effects of different amounts of vegetables,fruits and F&V consumption on the new incidence of hypertension were studied and compared with univariant by multivariant Cox regression method.Results A total of 10 104 completed the follow-up survey and 576 cases of new hypertension were recorded.The incidence of hypertension in participants with ≤2,>2.0-<4.1-<5.0,≥5.0 serving F&V per day was 6.2%,6.0%,5.1% and 4.6%,respectively.With comparison to those participants consuming the lowest amount of vegetables,fruits and F&V,the hazard ratio for reducing the risk of hypertension and the 95% confidence intervals were 0.62 (0.46-0.83),0.87(0.78-0.97) and 0.69(0.54-0.80) for separate vegetables and fruits and total F&V(P<0.05).Conclusion Increasing the consumption of vegetables and fruits can significantly bring down the incidence of hypertension in North China populations.