Objective To investigate the prognostic factors of young stroke patients with conventional treatment,and provide the basis for clinical diagnosis and treatment of stroke.Methods The clinical data of 72 cases of young stroke patients with conventional treatment were analyzed retrospectively.The prognostic factors were analyzed.Results In seventy-two cases of young stroke patients,18 cases of conventional treatment failed (25.00％,18/72).Univariate analysis showed that smoking,alcohol,underlying disease,dysphagia,barthel index (BI) score,U.S.national institutes of health stroke scale (NIHSS) score and Oxford handicap scale (OHS) score was closely related with the prognosis (P ＜ 0.05 or ＜ 0.01).Logistic analysis showed that the age,BI score,NIHSS score,OHS score and underlying diseases was the independent prognostic factor for young stroke patients.Eighteen cases who failed in conventional treatment fails accepted comprehensive rehabilitation treatment.Compared with that before treatment,1,3,6 months after treatment BI,NIHSS and OHS scores were significantly decreased (P ＜ 0.05).Conclusions BI,NIHSS,OHS score and underlying diseases are the independent prognostic factor for young stroke patients.Surgery and postoperative comprehensive rehabilitation in young stroke patients who failed in conventional treatment can improve patient's outcomes and prognosis.

Dexamethasone ; therapeutic use ; Glucocorticoids ; pharmacology ; therapeutic use ; Humans ; Infant, Newborn ; Meconium Aspiration Syndrome ; drug therapy ; physiopathology ; Methylprednisolone ; therapeutic use ; Prednisolone ; therapeutic use

OBJECTIVETo research the mechanism of dopamine (DA) controlled memory in mice.

METHODSMice received i.p. injection of scopolamine (0.3 mg/kg, SCOP 0.3, and 3.0mg/kg, SCOP 3.0, respectively, n = 10) and saline (NS, n = 10) for 60 days in experiment 1. Memory of mice was detected by dark avoidance behavior in the 53" d and the 60"' d. Animals were sacrificed after the memory test; brain tissues were processed for Fos-ir and TH-ir by immunohistochemistry. Mice were divided into four groups according results of expri-ment 1, they received i.p. injection of apomorphine (0.1 mg/kg, APO 0.1, 0.5 mg/kg, APO 0.5, and 2.0 mg/kg, APO2.0 respectively, n = 10).

RESULTSMemory was inhibited in mice injected scopolamine 3.0 mg/kg. Latency was significantly less than in NS group, only 1/ 4 that of NS group (P > 0.05). The number of mistake of SCOP 3.0 group increased about four times than that of NS group (P > 0.05). But there was no difference of latency and number of mistake between SCOP 0.3 and NS group in expriment 1. Scopolamine-induced memory deficit was associated with decreased cellular activation, indicated by Fos immunoreactive (ir) staining, in NAcc CA1 and CA3 (P < 0.05), and also associated with decreases in the number of cells labeled for tyrosine hydroxylase (TH-ir), the rate limiting enzyme for dopamine conversion (P < 0.01) and the number of cells co-labeled for TH-ir/Fos-ir (P <0.01) in the ventral tegmental area(VTA), apomorphine lessened scopolamine-induced memory deficit in experiment 2. The number of cells co-labeled for TH-ir/Fos-ir (P <, 0.05) was increased in VTA after apomorphine treatment.

CONCLUSIONApomorphine lessened scopolamine-induced memory deficit in mice by increasing DA activities in VTA.

Animals ; Apomorphine ; pharmacology ; Disease Models, Animal ; Dopamine Agonists ; pharmacology ; Male ; Memory Disorders ; chemically induced ; drug therapy ; Mice ; Scopolamine Hydrobromide ; toxicity

Objective To explore the efficacy of GM6001,tissue inhibitor expression and significance of matrix metalloproteinase?9(MMP?9)in mice model of oxygen?induced retinal neovascularization(RNV)and evaluate the inhibition effect of MMP?9 inhibitor(GM6001)on RNV. Meth?ods Mice were placed in oxygen boxes to establish oxygen?induced RNV animal models. The GM6001 treated or hyperxia control groups received an intravitreal injection of 1μL GM6001(100μmol/L)or PBS at day 11 after birth. The normal control and hyperxia group were not treated. HE staining was used to detect RNV in retinal whole mounts,the mRNA level and protein expression of MMP?9 were measured by RT?PCR,Western blot and immunohistochemistry,respectively. Results RNV in the GM6001 treated group was decreased significantly compared with the hyperxia group and hyperxia control group. Compared with the normal control group,higher protein and mRNA expression of MMP?9 were observed in the hy?perxia group and hyperxia control group. The expression of MMP?9 protein and mRNA were decreased in the GM6001 treated group compared with the hyperxia control group(P<0.05). Conclusion The abnormal expression of MMP?9 was closely correlated with RNV. The development of RNV can be markedly inhibited by MMP?9 inhibitor(GM6001),which,we believe,will provide new molecular targets and therapeutic strategy for retinopathy of prematurity treatment.

Objective: This work aimed to construct stable MCF-7 cell sublines from which staphylococcal nuclease domain con-taining 1 (SND1) expression was interfered to analyze the effect of SND1 silencing on the proliferation and metastasis of MCF-7 cells. Methods: The lentivirus that could mediate SND1 silencing was prepared. MCF-7 cells were infected with the lentiviruses to construct stable sub-cell lines. Quantitative real-time polymerase chain reaction and Western blot analysis were employed to determine SND1 ex-pression level. MTS, wound healing, and transwell assays were applied to analyze the effect of SND1 silencing on the proliferation, mi-gration, and invasion of MCF-7 cells. Results: A lentivirus expression vector that contains sequences encoding shRNAs targeting SND1 and an shRNA negative control were successfully established. The lentiviruses (LV-SH1, LV-SH2, LV-SH3, and 和 LV-NC) were then collected and packaged. Stabilized MCF-7 sublines were prepared through infection with lentiviruses. The most efficient MCF-7 stable cell subline, MCF-SH3, was selected for SND1 silencing. Compared with the control cell, the proliferation, migration, and inva-sion potential of MCF-SH3 were significantly decreased. Conclusion: SND1 could promote the proliferation, migration, and invasion of breast cancer cells. Thus, silencing SND1 expression will inhibit such proliferation, migration, and invasion. These results indicated that the unusual expression of SND1 is associated with breast cancer and may participate in cancer progression by affecting prolifera-tion, migration, and invasion.

Epidemic influenza (flu) is a disease threatening the life of people for a long history.A precise forecast for the flu outbreak can warn and help health care providers to take measures to reduce the influences and harms in advance.At present,with the development of information technology,there have accumulated tremendous data of flu trends and climate information.With a history of 90 years researches about the forecast of flu trends,researchers have put forward different types of forecasting methods,and each of them has merits and demerits.Among these methods,those ones considering the key climate factors have higher precisions.Considering various methods at present,the prediction accuracy can be improved mainly from two aspects:on one hand,the forecast accuracy can be improved by effectively integrate the advantages of different models ; On the other hand,the prediction must take into account of the specific climate of an area,pathogens and the mode of transmission characteristics in order to determine the most relevant climate factors or other highly related factors with which to design a more reasonable and accurate prediction method.

Objective To assess the regional left ventricular (LV) rotation motion in the patients with rheumatic mitral stenosis (MS) with velocity vector imaging (VVI).Methods This study included 38 patients with isolated MS (mild,moderate and severe) and 55 healthy control subjects.Short-axis parasternal views at the basal and apical level of LV were taken.Peak value of rotation angle and rotation velocity,as well as time to peak value were measured by VVI workplace offline respectively.Results ①In the healthy control subjects LV rotates clockwisely at the base and counterclockwisely at the apex,the same as the patients with MS.② In th patients with MS,rotaion angle and rotation velocity were significantly reduced at the apical level(P ＜0.001),rotation velocity were significantly reduced at some segments of basal level (anterior,lateral,septal) (P ＜ 0.05).③Compared with the healthy control,the difference of time to peak roation angle between base and apex was significantly longer in patients with MS (P ＜0.05).④ There were no significant differences among mild,moderate and severe MS (P ＞0.05).Conclusions The patients with MS may suffer from systolic dysfunctin even in the early stage identified by the alteration of LV rotation motion,which is independent of the hemodynamic severity of MS.

BACKGROUND:Stem celltherapy research has been able to continue to observe the different types of stem cells, but there is stil no single imaging mode for a comprehensive evaluation of the effect of stem celltherapy.
OBJECTIVE:To review the tracing of cellmarkers and imaging technology in stem celltherapy and to prospect the clinical application of molecular imaging in stem celltherapy.
METHODS:The first author retrieved the PubMed for articles (January 2005 to December 2012) regarding application of molecular imaging in stem celltherapy, cellmarking methods and imaging technology, ideal imaging mode for stem celltherapy, and tracing of different stem cells using molecular imaging method. The key words were“molecular imaging, stem celltherapy, celltransplantation, regenerative medicine”in English. Twenty of 269 papers were included in result analysis.
RESULTS AND CONCLUSION:At present, the ability to continuously monitor the biological processes of the transplanted stem cells relies on the histological analysis at different times. However, molecular imaging can observe in vivo complex system functions at the molecular, cellular, organ, and whole body level. As the technology improves, the change in the molecular level can be assessed in the context of the living organism. At the same time, a number of methods are available and meeting the demands to track stem cells by molecular imaging. Imaging technology increases the feasibility of stem celltherapy, and contributes to clarify the new biological mechanism during the stem celltherapy.

Background and purpose:Triple-negative breast cancer (TNBC) possesses high risk of relapse and metastasis. Clinically, there are no speciifc targeted-therapies to TNBC except chemotherapy. Therefore, studying the mechanism of relapse and metastasis has signiifcance to improve the patients’ survival rate. This experiment aimed to study the effect of MAPK activation on migration and invasion of triple-negative breast cancer cells. Methods:Difference of migration and invasion between lung-high metastasis breast cancer cell line 231-HM and its parental cell line 231-p were first examined by cell scratch and transwell;Then, metastasis-associated proteins and MAPK-associated molecules were detected by Western blot; Last, 231-p cells were treated with P38/MAPK inhibitor and used to determine cell migration, invasion, and metastasis-associated proteins thereafter. Results:Compared with the parental cell line 231-p, 231-HM cells displayed obviously higher ability of migration and invasion. With the increased expression of Caveolin-1and β-catenin, the phosphorylation of MAPK-associated molecules including P38, Erk1/2, and MEK was highly decreased. Treatment of 231-p cells with low concentration (10 μmol/L) of the P38/MAPK inhibitor SB202190 increased the migration and invasion of 231-p cells, and the expression of Caveolin-1 andβ-catenin. Conclusion:Activation of MAPK signaling inhibits the migration and invasion of triple-negative breast cancer.

Animals ; Arcuate Nucleus of Hypothalamus ; drug effects ; metabolism ; Body Temperature Regulation ; Cyclic AMP ; metabolism ; Dinoprostone ; metabolism ; Eugenol ; pharmacology ; Fever ; metabolism ; Preoptic Area ; drug effects ; metabolism ; Rabbits