Objective To observe the effects of cigarette smoke extract (CSE) on the proliferation and secretion of hydrogen peroxide (H2O2) in human lung fibroblasts (HLFs) induced by transforming growth faetor-β1(TGF-β1).Methods Cultured HLFs were divided into a normal group and a model group induced by TGF-β1 (5 ng/mL),then intervened with CSE at different concentrations (0% ,2.5% ,5%, 10%, respectively).Brdu ELISA assay was used to detect cell proliferation.H2O2release from cultured cells was assayed using a fluorimetric method.Cellular localization of H2O2 and expression of α-SMA were performed using a fluorescent-labeling strategy.Results TGF-β1 stimulated group showed positive expression of α-SMA, implying TGF-β1 had induced fibroblasts to differentiate into myofibroblasts.In TGF-β1 stimulated group,2.5% and 5% CSE promoted cell proliferation (P < 0.01 or 0.05), while 10% CSE inhibited cell proliferation (P < 0.01).In the normal group, both low and high concentration of CSE inhibited cell proliferation (P < 0.01 or P < 0.05), and the inhibition effect was dose-dependent.HLF induced by TGF-β1 generated low constitutive levels of extracellular H2O2 that was markedly enhanced by CSE treatment (P < 0.01).Pretreatment with DPI, an inhibitor of NADPH oxidase, abolished secretion of H2O2.Cellular localization of H2O2 by a fluorescent-labeling strategy demonstrated that extracellular secretion of H2O2 is specific to the myofibroblast.Conclusions Low concentration of CSE can promote myofibroblast proliferation, and markedly increase extracellular secretion of H2O2.CSE possibly take part in the development and progress of idiopathic pulmonary fibrosis by increasing oxidative stress.

Obstructive sleep apnea (OSA),the most common type of sleep disordered breathing was closely associated with the occurrence of ischemic stroke.It has been demonstrated that OSA is an independent risk factor for ischemic stroke.Its pathogenic mechanism includes atherosclerosis,coagulation abnormalities and cerebral hemodynamic changes caused by long-term periodic hypoxia hypoxemia and hypercapnia.The prognosis of ischemic stroke patients with OSA is poor.Therefore,it needs to be treated early to avoid further damage to brain tissue and reduce the mortality.

Objective To examine the psychometric characteristics of the Neonatal Oral-motor Assessment Scale (NOMAS) and the influence of evaluation time on assessment results of oral motor skills for preterm infants,and to provide advice for the application of oral-motor assessment in clinic practice.Methods Following Palmer's method,a video recording was made for the preterm infants at different age during the first 2 min of nutritive sucking(NS).We stored the recordings on a digital videodisc and two NOMAS assessors assessed each recording.Results The NOMAS had acceptable internal consistency for less than 35 weeks' PMA (postmenstrual age).Moderate correlation were found between scores on the NOMAS and feeding performance for less than 35 weeks' PMA (normal sucking r=0.58,sucking disorder r=-0.61).The NOMAS demonstrated low responsiveness to changes in oral-motor skill in a week period,ranging from 33 to 36 weeks' PMA (SRM=0.02～0.49).The NOMAS scores for evaluating 30 seconds and 2 minutes were not consistent,the former scores was higher.Conclusions The reliability and validity of NOMAS were acceptable in assessing the oral-motor function of preterm infants for less than 35 weeks' PMA.The evaluation time of NOMAS was suitable for 2 min.

Objective To explore the expressions of livin and Smac in condyloma acuminatum (CA) tissue and their roles. Methods The expressions of Livin and Smac were analyzed by immunocytochemical staining with streptavidin-peroxidase (SP) in tissue specimens from the lesions of 58 patients with CA and foreskin of 20 normal human controls. Results The detection rates of Livin and Smac were 81.03% (47/58) and 77.59% (45/58) in CA lesions, respectively, compared to 25.00% (5/20) and 35.00% (7/20) in the controls, respectively. The expressions of Livin and Smac varied from positive (++) to strongly positive (+++) in CA lesions, and from negative (-) to positive (++) in the controls (both P< 0.05). A positive correlation was found between the expression of Livin and Smac in CA lesions (r = 0.373, P < 0.01). Conclusion There is an over- expression of Livin and Smac in CA tissue, which may be involved in the occurrence and development of CA.

Multidrug resistance-associated protein 1 (MRP1/ABCC1) is the first identified member of ABCC subfamily which belongs to ATP-binding cassette (ABC) transporter superfamily.It is ubiquitously expressed in almost all human tissues and transports a wide spectrum of substrates including drugs,heavy metal anions,toxicants,and conjugates of glutathione,glucuronide and sulfate.With the advance of sequence technology,many MRP1/ABCC1 polymorphisms have been identified.Accumulating evidences show that some polymorphisms are significantly associated with drug resistance and disease susceptibility.In vitro reconstitution studies have also unveiled the mechanism for some polymorphisms.In this review,we present recent advances in understanding the role and mechanism of MRP1/ABCC1 polymorphisms in drug resistance,toxicity,disease susceptibility and severity,prognosis prediction,and methods to select and predict functional polymorphisms.

OBJECTIVE:To explore the feature and regularity of ADR induced by animal bone polypeptide medicine,so as to provide reference for rational use of these drugs in clinical practice. METHODS:In retrospective analysis,96 cases of ADR oc-curred in our hospital during Jan. 2009-Jun. 2016 were analyzed statistically in terms of patients'gender and age,drugs involved, occurrence time,route of administration,organs and systems involved,association,prognosis,etc. RESULTS:Among 96 cases (including 17 serious ADR),the ratio of male to female was 1.34 : 1,and 56.25% of them were above 40 years old. ADR mainly occurred within 15 minutes after medication(39.58%)dominated by intravenous drip. Organs/systems involved in ADR were main-ly lesion of skin and its appendants(34.81%),followed by respiratory system damage(18.35%)and systemic damage(16.46%). In aspect of ADR association,41 were probable(42.71%)and 55 were possible(57.29%). After suffering from ADR,43 patients (44.79%)were cured after drug withdrawal or corresponding treatment,and 53 patients(55.21%)were recovered. CONCLU-SIONS:Medical staff should master the regularity and characteristics of ADR induced by animal bone polypeptide medicine,while strengthen rational drug use management and monitoring to ensure the safety and effectiveness of clinical drug use.

[Objective] To establish a method for the determination of geniposide in Jinzhi Jieyin Gargle by RP- HPLC. [ Methods ] SupelcosilTM LC - 18 (150 mm ?4.6 mm, 5?m) was used as the analytical column, methanol - water -phosphoric acid (25∶75∶0.12 ) as mobile phase and the detection wave - length at 240 run. [Results] Within the range of 0.175-1.84?g, geniposide showed a good linearity ( r = 0.9999 ). The average recovery was 99.93%(n=5, RSD = 1.16%). [Conclusion] This method can be used for the quality control of Jinzhi Jieyin Gargle.

Objective Observing the process of cell aggregation and differentiating into myocardium after the P19 cells treated with different methods and dimethyl sulfoxide(DMSO) inducer.Methods P19 cells were cultivated with DMSO in suspension for 7 days in Petri dishes or dishes containing a thin layer of soft agar to form cell aggregation.Then the aggregates were plated on gelatin-coated culture dishes,and cultured without DMSO to 19 days.The beating of cells was observed.?-sarcomeric actin and cardiac Troponin T(cTnT) immunocytochemical stains were used to identify cell differentiation.Results Cell aggregations were cohering-cultured with growth culture medium after DMSO induced for 7days,spontaneous and rhythmically beating cells were present within the aggregation outgrowths at day 15,which were ?-sarcomeric actin-positive and cTnT-positive.By day 19,positive rates were about 26% and 15% respectively.Conclusion By using DMSO exposure combination prior aggregation can induce P19 cells differentiate into cardiac myocytes which can spontaneously and rhythmically beat.

Tumor cells have different physiological and biochemical features as compared to normal cells;abnormal expressi of certain genes is also found in tumor cells.Over-expression of genes provide targets for targeted-administration of drugs,which can avoid damage to normal cells during treatment of tumors.Fatty acid synthase(FAS)and human epidermal growth factor receptor-2(HER2)are both over-expressed in some tumor cells.Herceptin,an HER2-targeted agent,has been used to treat HER2-positive breast cancer patients worldwide and has obtained satisfactory outcome.Cerulomycin,an agent-targeting FAS,is now in FDA clinical trial.Recent researches have shown that FAS and HER2 are simultaneously over-expressed in some tumors,such as breast cancer cells and ovarian cancer cells;and there is a connection between their signal pathways and a synergistic effect between them.This paper reviews the relationship between FAS and HER2 in tumor cells.

In order to sum up the antineoplasmic active components of Holothuria, we studied the literatures in recent years. The results showed that Holothuria contained a variety of anti-tumor active ingredient, such as Holothurian Glycosaminoglycan and Holothurin. These anti-tumor active components played important roles in different stages of tumor developmment, progression and metastasis. The discovery of new anti-tumor active ingredients may be helpful for the application of Holothuria in clinical tumor treatment.