Objective To know the influence of psychological nursing on depression of patients with hypokalemic periodic paralysis.Methods Evaluated the mental condition by SDS for 46 patients with hypokalemic periodic paralysis and 30 health control, and then carried out certain psychological nursing measures for patients.Divided 46 patients with hypokalemic periodic paralysis into the intervention group and the control group randomly.There were 23 cases in each group.Psychological nursing cares and routine cares was used in the two group respectively, and then compared the incidence rate of depression in the two groups.Results The negative emotion in the patients with hypokalemie periodic paralysis was significant more obvious than that of in the health control.After the psychological nursing intervention, the SDS scores in the intervention group was released significantly than themselves before the intervention and the scores in the control group in the same time.Conclusions Depression was a common phenomenon in patients with hypokalemic periodic paralysis, characteristic psychological nursing intervention can effective release this kind of negative emotion, and then improve their rehabilitation.

Objective To investigate the utility of full-field digital mammography (FFDM) and localization and biopsy in diagnosis of nonpalpable breast cancer. Methods 42 cases with suspect breast cancer by routine film reading but negative clinical palpation were performed localization and biopsy under X-ray orientation and diagnosed with breast cancer by pathology. The characters of those cases were studied.Results Among 42 cases, 5 cases showed micronodules, 8 cases demonstrated local dense infiltration, 11cases had architecture distortion, 18 cases demonstrated micro-calcifications. The type of pathology comprised of intraductal carcinoma (23 cases), tabular carcinoma in situ (2 cases), early infiltration of ductal carcinoma (12 cases), infiltrating ductal carcinoma (3 cases), papilloma carcinoma (2 cases). Conclusion FFDM can clearly show direct and indirect X-ray signs of breast cancer, combined with localization and biopsy the nonpalpable breast cancer can be easily diagnosed.

OBJECTIVE To investigate the distribution and the drug resistance of pathogens in infective cases and to provide a foundation for reasonable application of antibacterials.METHODS The information of all bacterial cultures and susceptibility tests from the inpatients in the year of 2006 was analyzed.RESULTS A total of 336 strains of pathogens were isolated,and the pathogens causing lower respiratory tract infection rated the top(60.7%).The resistance rate of Acinetobacter baumannii was the highest in Gram-negative bacilli.It was 33.3% to imipenem,and more than 66.6% towards the other antibacterials.All Gram-positive cocci were sensitive to vancomycin.The resistance rate of Enterococcus and Staphylococcus aureus was more than 75% to the most antibacterials.CONCLUSIONS Inspecting pathogens and strengthening susceptibility tests are very important in reducing drug abuse,decreasing the resistance rate and raising the cure rate in hospital.

Objective To investigate the molecular epidemiology of 114C. albicans strains isolated from the vaginal discharge of female patients treated in three obstetrics and gynecology hospitals in Shanghai by analyzing the relationship between the main genotypes and resistance proifle, and the relationship between genetic diversity and cluster ofC. albicans.Methods A total of 114 strains ofC. albicans were collected from the Obstetrics & Gynecology Hospital of Fudan University, Shanghai First Maternity and Infant Hospital Corporation and the International Peace Maternity & Child Health Hospital of China welfare institute. Phylogenetic analysis of strains were carried out by eBURST.C. albicans strains were also analyzed by multilocus sequence typing (MLST). The susceptibility of theC. albicans strains was tested by ATB FUNGUS 3.Results A total of 47 diploid strain types (DSTs) were identiifed from the 114 strains, 30 of which were known types. DST 79 and DST 435 were the main types. Of the 114C. albicans strains, 96.5% were susceptible to lfucytosine, 100% to amphotericin B, 85.1% to lfuconazole, 55.2% to itraconazole and 84.3% to voriconazole.Conclusions The pathogenicC. albicans strains isolated from different obstetrics and gynecology hospitals in Shanghai were originated from multiple clones, the main type of which was DST 79 and DST 435 with certain degree of antifungal resistance. MLST typing suggests that genetic diversity is present in theC. albicans strains isolated in Shanghai area. The clustering analysis ofC. albicans strains is consistent with its genotypes.

Objective To investigate the effect of human hepatocellular carcinoma HepG2 cell-derived Exosome on the differentiation of mesenchymal stem cells(MSC)into cancer-associated myofibroblasts(CAF)and the impacts of CAF on liver cancer cell proliferation,migration,and invasion. Methods The protein expression of HepG2 cell-derived Exosome was detected by Western blotting. MSCs were separated from human adipose tissue and cultured with HepG2 cell-derived Exosome(100 ng/nl)to initiate differentiation. The expressions of mesenchymal markers and several interleukins were also detected by Western blotting. HepG2 cells were co-cultured with the conditioned media(CM),in which HepG2 Exosome induced the differentiation of MSC into CAF. The expressions of epithelial and mesenchymal markers were detected by real-time polymerase chain reaction(PCR)and Western blotting. Cell proliferation was assessed using MTS assay. Transwell chambers were used in the in vitro migration and invasion assay. Results HepG2 cell-derived particles expressed CD63,70 kilodalton heat shock proteins,and 90 kilodalton heat shock proteins. With the treatment of HepG2 cell-derived Exosome,the expressions of mesenchymal marker α-smooth muscle actin,fibroblast activation protein α,interleukin(IL)-6,IL-8,and IL-1β were up-regulated,while vascular endothelial growth factor had no significant change. The conditioned media which HepG2 Exosome induced MSC differentiation CAF(CAF-CM)could significantly promote HepG2 cells proliferation(1.075±0.104),compared to BSA control(0.874±0.066,P=0.023)and MSC-CM(0.649±0.034,P=0.0005). CAF-CM could significantly enhance cell migration [(42.5±9.1) cells vs.(18.5±3.1) cells,P=0.001] and invasion [(29.0±3.5) cells vs.(13.1±3.7) cells,P=0.009] compared to its control group. Moreover the conditioned medium which HepG2 Exosome induced MSC to differentiate into CAF could also promote the expressions of mesenchyme-related genes Smad interacting protein 1(P=0.040),β-catenin(P=0.038),fibronectin(P=0.029),and Vimentin(P=0.013)and inhibit the expression of epithelial related genes zonula ocdudens-1(P=0.010).Conclusions Exosome extracted from HepG2 cells can induce human adipose-derived MSC to differentiate into cancer-associated myofibroblasts. CAF-like cells can promote the migration of the liver cancer cell line HepG2.

Objective To establish a feasible evaluation index and method to identify composition of re-maining metal particles on ferrochrome kitchen knife. Methods The small samples of remaining metal particles were rubbed fromthe knives using filter paper. The composition of remaining metal particles was detected by scanning electron microscopy and energy dispersive X-ray spectrometer (SE m-EDX ) and GSR particle analysis function, using mathematical methods to calculate the ratio (relative amount) of Fe and Cr in remaining metal particles. Results The ratio (relative amount) of Fe and Cr of remain-ing metal particles had significant differences among most ferrochrome kitchen knives (P<0.05). Conclu-sion U sing GSR particle analysis function to quantitatively detect the ratio (relative amount) of Fe and Cr of remaining metal particles on ferrochrome kitchen knife, which can establish the feasible evaluation method to estimate such injury tool.

BACKGROUND:Stem cels from the apical papila are a new kind of mesenchymal stem cels, and whether it can
be used in root regeneration is the key to the present study. OBJECTIVE:To culture rat stem cels from the apical papila and periodontal ligament stem celsin vitro, and to compare the biology behaviors of these two kinds of cels, thereby providing experimental basis for the application of stem cels from the apical papila in root regeneration. METHODS:The apical papila, as wel as the periodontal ligament tissues from the healthy mandibular teeth of young rats were digested and cultured. Immunophenotypes of stem cels from the apical papila and periodontal ligament stem cels were detected by immunofluorescence technique. Then, cel growth curves were determined by MTT method and mineralized nodule formation was observed by alizarin red staining. RESULTS AND CONCLUSION:Stem cels from the apical papila and periodontal ligament stem cels were both positive for STRO-1. Stem cels from the apical papila were positive for CD90 and weakly positive for CD146. Periodontal ligament stem cels were positive for CD146 and weakly positive for CD90. The absorbance values of stem cels from the apical papila and periodontal ligament stem cels increased with the increasing of time and became stable at 8 days. Since the 4th day, the proliferation capacity of stem cels from the apical papila was significantly stronger than that of periodontal ligament stem cels (P < 0.05). Both of stem cels are visible to have mineralized nodule formation. Compared with the periodontal ligament stem cels, stem cels from the apical papila were stained obviously deeper and had more mineralized nodules. These results show that stem cels from the apical papila have stronger proliferation capacity and mineralization ability than periodontal ligament stem cels. Cite this article:Zhao L, Yu L, Yuan P, Zhou CM, Wu PL.Stem cels from the apical papila versus periodontal ligament stem cels: biological behaviors. Zhongguo Zuzhi Gongcheng Yanjiu. 2016;20(1):113-117.

Background Whether negative suction during excimer laser in situ keratomileusis(LASIK) affect the structure and function of retina or not is in controversy,but it seems that temporary hypertention induced by negative suction is a key factor of impairment of retina in LASIK.ObjectiveThis study attempts to study the influence of transient high intraocular pressure (IOP) during LASIK on the contents of retinal amino acid.MethodsThe both eyes of 45 New Zealand white rabbits were suctioned for different periods (20s,45s,3min) with negative pressure generator during the LASIK to make the instantaneous high IOP models,and LASIK without negative suction was performed in the both eyes of 15 rabbits in the control group.The changes of the contents of retinal amino acids were evaluated with High Performance Liquid Chromatography(HPLC) at 0,7,10,14 and 28 days postoperatively and compared with those of control group.ResultsThere were no statistically significant differences in the contents of retinal amino acids among different time points after operation in negative suction for 20s group and 45s group,respectively(P＞0.05).At negative suction for 3minuts,the content of glutamic acid in retina was significantly increased in comparison with control group in 7,10,14 and 28 days (P＜0.05),and no statistically significant difference was seen in the contents of glutamic acid at postoperative instant group compared with control group(P＞0.05).A statistically significant difference in the contents of glutamine,tryptophan,phenylalanine was revealed among postoperative 10 days,14 days and 28 days groups comparison with control group (P＜0.05).ConclusionThe acute IOP elevation caused by negative suction during LASIK results in the reversible increase of retinal amino acids.The duration of negative suction time influent the reconstruction of retinal structure.

Objective To compare the characteristics of hMPV infection in BALB/c and SCID mice.Methods BALB/c and SCID mice were infected intranasally with GFP-rhMPV,and sacrificed on day 3,5,7,9 and 14 post inoculation.Heart,liver,spleen,lungs,kidneys and brain of the animals were used for viral isolation,titration,pulmonary histopathology and detection of GFP-hMPV mRNA expression by RT-PCR and real-time PCR.Results Live viruses were successfully isolated from the lungs of infected mice.Viral titers peaked on the 5th day post inoculation.Viruses remained to be detectable on the 14th day post inoculation in SCID mice,but not in BALB/c mice,whereas genomic RNA of GFP-rhMPV was detectable by PCR targeting F gene in infected BALB/c mice.Live viruses were not able to be isolated from heart,liver,spleen,kidney and brain,neither was genomic RNA of hMPV able to be detected on the 5 th day post inoculation by RT-PCR and real-time PCR.Histopathology of lungs was characterized by interstitial pneumonia on 5 days post inoculation.Lung pathology score of BALB/c mice group was slightly lower than SCID,and the difference was not statistically significant.Conclusion GFP-rhMPV can only replicate in the immunocompetent and immunodeficient mouse lungs,but not in other organs.As compared to that in BALB/c mice,the viral replication appears to be more efficiently and for longer time in SCID mouse lungs probably due to the absence of host cellular and humaral immunity,but this does not necessarily result in more severe pathological lesion.