Antigens, Differentiation, B-Lymphocyte ; genetics ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; genetics ; metabolism ; Gene Fusion ; Gene Rearrangement ; Histocompatibility Antigens Class II ; genetics ; Humans ; Immunohistochemistry ; In Situ Hybridization, Fluorescence ; Lung Neoplasms ; drug therapy ; genetics ; metabolism ; Protein Kinase Inhibitors ; therapeutic use ; Protein-Tyrosine Kinases ; antagonists & inhibitors ; genetics ; metabolism ; Proto-Oncogene Proteins ; antagonists & inhibitors ; genetics ; metabolism ; Pyrazoles ; therapeutic use ; Pyridines ; therapeutic use ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Sodium-Phosphate Cotransporter Proteins, Type IIb ; genetics

Objective To design a model of the content structure of websites of large scale modern hospitals which is in keeping with Chinas realities. Methods The First Hospital affiliated to the Fourth Military Medical University was selected as a representative of large scale modern Chinese hospitals and on the spot investigations were carried out. Investigations were also made via the Internet on ten famous domestic websites of hospitals affiliated to medical universities and the first ten American hospital websites as chosen by the American News Website in 2000. The opinions of 20 experts were collected and analyzed by means of expert consultation. Results The basic features of the websites of large scale modern hospitals were summed up and a content structure of websites of large scale modern hospitals, both advanced and in keeping with Chinas realities, was designed. Conclusion There is some regularity to follow in the website contents of large scale modern hospitals and the website contents of hospitals in China are turning from the stage of information to the stage of interaction.

Objective To investigate the stimulated proliferation of colon cancer cells in co-cultures of regenerating hepatocytes. Methods Regenerating hepatocytes(24 hours after partial hepatectomy)were obtained by collagenase perfusion of models of rats undergoing 70% liver resection. To determine whether the ratio of human colon cell line SW480 cells to hepatocytes in co-cultures has influence on their interaction,these cells were cultured in ratios of 1: 101:1, or 10: 1. Proliferation capacity was assessed by the percentage of 3 H-TdR incorporation. Expression of epidermal growth factor receptor(EGFR), insulin-like growth factor1 receptor(IGF-1R)and hepatocyte growth factor receptor(c-met) were analyzed by western blot. Results For co-cultured SW480 and hepatocytes in the ratios of 1: 1 and 1: 10, an increase of disintegrations per minute(dpm) occurred after 72 hours' culture, and lasted at 120 hours' culture(P < 0.05). No difference was found between the group with ratio of 10:1 and control group. Protein levels of EGFR and IGF-1R, but not c-met, were significantly increased between culture of 24 hours and 120 hours; however, no change of these receptors was found in the ratio of 10: 1. Conclusions These results imply that co-culturing human colon cancer cells with regenerating hepatocytes leads to increased expression of EGFR and IGF-1R. We conclude that this effect is probably dependent on paracrine stimulation, by which numerous signals from the hepatocytes contribute to the hyperproliferative state of colon cancer cells via up-regulating the responding receptors.

Objective Although heart transplantation (HTx) has become a standard therapy for end-stage heart diseases,experience with pediatric HTx is limited in China.In this article,we will try to provide the experience with indications,complications,perioperative management,immunosuppressive therapy,and survival for pediatric HTx based on our clinical work.Method This is a retrospective chart review of the pediatric patients undergoing HTx at Department of Cardiovascular Surgery of Union Hospital from September 2008 to December 2015.We summarized the indications,surgical variables,postoperative complications,and survival for these patients.Result Twenty-three pediatric patients presented for HTx at Union Hospital of Tongji Medical College,of whom 12 were male.The age at the time of transplantation ranged from 3 months to 18years (median 14 years).Patient weight ranged from 5.2 kg to 57.0 kg (median 36.0 kg).Pretransplant diagnosis included cardiomyopathy (16 cases),complex congenital heart disease (5cases) and tumors (2 cases).All recipients received ABO compatible donor hearts.Postoperative complications occurred in 14 patients,including cardiac dysfunction,arrhythmia,pulmonary infection,renal dysfunction,and rejection.Two of them experienced cardiac failure and required extracorporeal membrane oxygenation.The immunosuppression regimen was comprised of prednisone,a calcineurin inhibitor,and mycophenolate.All patients recovered with New York Heart Association (NYHA) Class Ⅰ Ⅱ cardiac function and were discharged.Only one patient suffered sudden death 19 months after transplantation.Conclusion Orthotopic HTx is a promising therapeutic option with satisfactory survival for the pediatric population in China with end-stage heart disease.

Objective To analyze the nucleotide sequences and genetic polymorphisms of UL138 gene of low passage human cytomegalovirus ( HCMV) strains isolated from infants in Guangzhou province. Methods The low passage strains of HCMV were isolated from urine samples of 10 infants with HCMV in-fection in Guangzhou province and identified by multiplex PCR.The UL138 genes were amplified, cloned and identified with sequencing.The sequences were analyzed together with the homologous sequences of 10 clinical isolates published in GenBank.The sequences of UL138 genes were analyzed by using bioinformatics softwares for investigation of the post-translational modification sites, isoelectric points and second structures of UL138 proteins.Results Three low passage strains of HCMV ( D2, D3 and D52) were isolated from in-fants with congenital HCMV infection.The complete sequences of UL138 genes of the three strains were sub-mitted to GenBank after sequencing identification with the GenBank accession numbers of DQ180375, DQ180387 and DQ180359, respectively.The UL138 gene sequences of the three clinical isolates were high-ly conservative.Among the 841 base pairs of the UL138 gene sequences, mutations were identified in 16 sites with base substitution, no any insertion and deletion mutation was found.The 16 mutations resulted in 7 amino acid changes.No additional or deleted sites were found with regard to the post translational modifi-cation sites of UL138 protein in all clinical isolates except the Toledo strain.The isoelectric point of UL138 protein was 6.51 for all clinical isolates.Conclusion The UL138 genes and the deduced amino acid se-quences of HCMV strains isolated from infants in Guangzhou were highly conservative, regardless of the poly-morphism of UL138 gene.This study paved the way for further investigation on HCMV infection and its path-ogenic mechanism.

Objective To investigate the correlation factors of neonatal lenticulostriate vasculopathy. Method Four hundred and forty-seven newborns from Guangdong Women and Children Hospital were enrolled in this study. Clinical data of the newborns were obtained . Brain ultrasound studies of lenticulostriate artery were performed on the newborns. The logistic regression was performed for screening the correlation factors of neonatal lenticulostriate vasculopathy (P < 0.05). Results Results of the univariate logistic regression reveal the correlation factors tcontributing to LSV include congenital cytomegalovirus infection、neonatal asphyxia、congenital heart disease (CHD),hypertensive disorder in pregnancy (P < 0.05, respectively). Multivariate logistic regression analysis was performed on these factors. The congenital cytomegalovirus infection, neonatal asphyxia, CHD,hypertensive disorder in pregnancy were significantly associated with LSV (P < 0.05). Conclusion The congenital cytomegalovirus infection,neonatal asphyxia,CHD,hypertensive disorder in pregnancy are the correlation factors of neonatal lenticulostriate vasculopathy. LSV could be a predictive marker for the future development of neuropsychiatric disorders. The brain ultrasound studies of lenticulostriate artery is suggested to be performed on all infants with the correlation factors.

Objective To study the mlationship between dietary soy isoflavones and blood lipids among residents of 40-65 years old,in Guangzhou.Methods Dietary soy isoflavones and other nutrients intakes were assessed with quantitative food frequency questionnaire(FFQ).Total cholesterol(TC),triglycerides(TG),HDL cholesterol(HDL-C)and LDL cholesterol(LDL-C)in plasma were measured with colorimetry.Results Ranges of dietary soy isoflavones intake among 134 males and 261 females were fxom 0 mg/day to 61.96 mg/day and 0 mg/day to 82.52 mg/day,with means of 11.95 mg/day,14.90 mg/day,respectively.After adjusted for total energy intake and fat percent energy,difiefences of TC,LDL-C in total population and TC in women were statistically significant between groups(P value was 0.002,0.008,0.004,respectively) and dose-effect relationships(P value was <0.001.0.012.0.001,respectively)were observed between dietary soy isoflavones intake and the upper mentioned three indices.Compared with the low-intake group,tbese three indices lowered 7.06%,10.13%and 7.48%,respectively in high-intake group.Critical significance of LDL-C was observed both in women and men between groups.Further controlled for age,BMI and WHR,no obvious change of the results was observed.Conclusion Moderate intakes of soy isoflavone as part of a regular diet seemed to be associated with favorable blood lipid levels.

OBJECTIVETo investigate the intensity changes of different thickness ratios of Empress II glass ceramic and GI- II glass-infiltrated alumina ceramic before and after Hertzian contact cyclic fatigue.

METHODSDisk-shaped specimens of different thickness ratios of Empress II glass ceramic and GI-II glass-infiltrated alumina ceramic were respectively fabricated. Hertzian contact technique was imposed on the specimens. Critical loads of the specimens before and after 10(5) cycles loading were recorded.

RESULTSThe average values of critical loads of all specimens reduced significantly after cycles loading (P < 0.05), and critical loads declined with diminishing thickness of the core ceramic. The critical load of GI-II glass-infiltrated alumina ceramic was significantly higher than Empress II glass ceramic before and after cycle loading(P < 0.05).

CONCLUSIONCycle loading can reduce the strengths of the two kinds of dental ceramic, and the latter is better than the former in the resistance to fracture and cyclic fatigue. Critical loads of the two kinds of dental ceramic are mainly influenced by the core ceramic's strength and thickness.

Aluminum Oxide ; Ceramics ; Dental Porcelain ; Glass ; Humans ; Materials Testing

OBJECTIVETo explore the sensitivity of tumor cell lines with acquired resistance to gefitinib to several chemotherapeutic drugs and provide preclinical basis of available chemotherapy regimens after failure of molecular targeted therapy.

METHODSHuman lung adenocarcinoma cell lines PC9 and PC9/G with acquired resistance to gefitinib were cultured in vitro. The sensitivity to chemotherapeutic drugs and inhibition rate of cell proliferation was determined by MTT assay. Effects of drugs on apoptosis and expression of P-170 were determined by flow cytometry. Difference of gene expression profile between PC9 and PC9/G cells was analyzed by DNA microarray. Western blot was used to test the expression of Akt, phospho-Akt and integrin beta1.

RESULTSThe resistance index of PC9/G cells to cisplatin was about 5.4-fold compared with that of PC9 cells. LY294002 may significantly elevate the sensitivity of PC9/G cells to cisplatin (P < 0.05). PC9/G cells were more sensitive to docetaxel than PC9 cells. No significant difference of sensitivity to pemetrexed was found between these two cell lines. Expression level of P-170 in PC9/G cells was lower than that in PC9 cells. In PC9/G cells, the expression of integrin beta1 and DNA healing gene was high and expression of gene during mitosis was low. The level of expression of Akt, phospho-Akt and integrin beta1 in PC9/G cells was higher than that in PC9 cells.

CONCLUSIONIn PC9/G cells, a cell line with acquired resistance to gefitinib, over-expression of PI3K, integrin and DNA restoration gene and continuous activation of PI3K is found to be correlated with resistance to cisplatin. Docetaxel or pemetrexed is a more reasonable choice than cisplatin for treatment of NSCLC patients who failed to respond to EGFR-TKI.

ATP-Binding Cassette, Sub-Family B, Member 1 ; metabolism ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Carcinoma, Non-Small-Cell Lung ; metabolism ; pathology ; Cell Line, Tumor ; Chromones ; pharmacology ; Drug Resistance, Neoplasm ; Glutamates ; pharmacology ; Guanine ; analogs & derivatives ; pharmacology ; Humans ; Integrin beta1 ; metabolism ; Lung Neoplasms ; metabolism ; pathology ; Morpholines ; pharmacology ; Pemetrexed ; Phosphatidylinositol 3-Kinases ; antagonists & inhibitors ; metabolism ; Proto-Oncogene Proteins c-akt ; metabolism ; Quinazolines ; pharmacology ; Taxoids ; pharmacology

Abstract?AIM:To investigate the effective treatment methods of corneal injury caused by chestnut thorns and the factors affecting the disease progression.?METHODS: From Jul.2014 to Oct.2015, the clinical data of 15 patients(15 eyes) with corneal injury caused by chestnut thorns in Ophthalmology Inpatient Department of Wuhan Tongji Hospital was retrospective analyzed. The patients without fungal keratitis were treated with the surgery of removing chestnut thorn from cornea and antifungal drugs. For the patients complicated with fungal keratitis, besides surgery of removing chestnut thorn and antifungal drugs, anterior chamber irrigation and corneal stroma injection with fluconazole solution were given to treat the disease.If necessary, amniotic membrane transplantation or keratoplasty was also given to the patients complicated with fungal keratitis. After that, the effectiveness of those methods and the factors affecting progression were analyzed.?RESULTS:For 11 patients without fungal keratitis, the average time between corneal injury and receiving treatment at Tongji Hospital was 1-7 (2.42±2.15) d and for 4 patients complicated with fungal keratitis, the average time was 3-30 (18.25±4.35)d.Among 15 cases, statistics suggested that the average number of chestnut thorn in patients complicated with fungal keratitis was 4.5, and all the chestnut thorn penetrated the cornea into the anterior chamber.The average number of chestnut thorn in patients without fungal keratitis was 3.5, and the proportion of chestnut thorn penetrated the cornea into the anterior chamber was 28.5%.After treatment, all patients had no new fungal keratitis or other complications.Those results indicated that the different treatments for the patients with or without fungal keratitis were all effective.?CONCLUSION:The factors affecting the progression of cornea foreign body injury caused by chestnut thorn are the number of chestnut thorn, whether chestnut thorn penetrate the cornea into the anterior chamber, time since injury, active anti -fungal therapy. If patients complicated with fungal keratitis could be treated with antifungal agents and anterior chamber irrigation or corneal stroma injection using fluconazole solution without delay, the progress of fungal keratitis could be effectively controlled, and favorable conditions for further therapy such as amniotic membrane transplantation or keratoplasty could be provided.