Objective To explore the lesion distribution pattern of poststroke pathological laughing or crying (PSPLC) by using MRI,and to discuss its pathogenesis. Methods All 24 cases selected from stroke patients who were treated in the department of neurology from May 2012 to December 2015 and had complete follow?up information after their discharge through 6 months were screened for pathological laughing and crying( PLC) . MRI characteristics of cases were analyzed retrospectively to identify lesion distribution. 28 cases with acute isolated pontine infarction who did not demonstrate PLC were enrolled as a comparison group. Lesion pattern difference between 14 cases of the pontine infarction with PLC and 28 cases of acute i?solated pontine infarction without PLC was compared. Results In these 24 cases,the highest occurrence rate of PLC was 41.67% in the second month. 15 cases had forced crying (62.5%),3 cases had forced laughing (12.5%),6 cases had pathological laughing or crying (25%). MRI studies showed lesion location in the left side were 3 cases,in the right side were 1 case,in the bilateral brain were 20 cases,in the basal ganglia were 9 cases,in the thalamus were 8 cases,in the corona radiata were 6 cases,in the semioval center were 5 cases, in the cerebral cortex were 4 cases,in the cerebellum were 4 cases and in the brain stem were 14 cases. In the cases of PLC with brain stem lesion,only 1 case was isolated pontine infarction,the other patients all combined with lesions of other parts. Compared with the pontine infarction with PLC,the isolated pontine in?farction without PLC was more likely to suffer with unilateral brain lesions(71%vs 50%),but there was no significant difference (χ2=0.844, P=0.358) . Conclusion PSFLC is not a rare complication after stroke, which is associated with multiple site of brain involvement especially pontine infarction.

Objective To determine the relationship between maternal negative major life events during the first trimester and incidence of congenital heart diseases(CHD) in their offspring.Methods The 4-2-1 medical information was referred and screen CHD children who were confirmed by Municipal hospitals over.A 1:2 case-control study was carried out with face-to-face structured interviews and telephone interviews to investigate parents of 116 children with CHD and 232 healthy matched children,including the parents′ demographic variables(such as whether the working environment exposure to toxic and hazardous substances 1 year before pregnancy,et al),mother′s experience of previous adverse pregnancy,duration of pregnancy condition(such as maternal negative major life events during the first trimester,the history of catching a cold or fever during the first trimester.The possible risk factors were analyzed by simple factors Logistic regression methods.Then,diagnosing the colinearity among these suspicious risk factors,and rejecting it if necessary.Finally,multiple factors conditional Logistic stepwise regression was used to filter once more.Results The results revealed that maternal negative major life events and taking medicine during the first trimester,mother′s experience of previous adverse pregnancy were related to the occurrence of CHD in the offspring.Moreover,maternal negative major life events during the first trimester play the most important role(OR=1.810).Conclusions Strengthening mothers′ mental health and controlling or reducing maternal negative major life events during the first trimester may be effective in reducing the risk of CHD.

Adult ; Aged ; Bronchoalveolar Lavage Fluid ; chemistry ; cytology ; Chemokine CCL3 ; metabolism ; Humans ; Macrophage Migration-Inhibitory Factors ; metabolism ; Macrophages ; metabolism ; pathology ; Male ; Middle Aged ; Silicosis ; metabolism ; pathology

Advanced in medical and surgical management have led to reduce mortality in children with congenital heart disease(CHD).However,more recent and ongoing research had been focused on neurodevelopmental outcome.With the improved survival in children follo-wing surgery for cardiac malformations,increased emphasis had being placed on neurological sequelae,especially on cognitive function.Car-diac surgery couldn't correct cognitive disorder,more and more findings suggested that the cognitive disorder of CHD might be the result of utero injury.J Appl Clin Pediatr,2009,24(1):61-64

Objective To explore the activities of daily living (ADL) and related factors of patients with Parkinson's disease (PD). Methods118 PD patients were assessed with the ADL scale, Unified Parkinson Disease Rating Scale-Ⅲ (UPDRS-Ⅲ), the Hamilton Rating Scalefor Anxiety (HAMA) and Hamilton Rating Scale for Depression (HAMD). Results ADL score in all the patients was (40.75±14.63); ADLscore was higher in anxiety or depression group than in non-anxiety or non-depression group respectively (P<0.05). Scores of UPDRS-Ⅲcorrelated with the ADL (r=0.506, P=0.000). Conclusion ADL decreases in PD patients, especially those with anxiety and depression. Themotor disorder of PD patients correlated with ADL.

This study examined the implication of EMT induced by TGF-beta1 in pancreatic cancer invasion. TGF-beta1 expression was determined in 29 cases of human pancreatic carcinoma (PC) by immunohistochemistry and the results were compared with those of pathological examination. Moreover, the effects of TGF-beta1 on the phenotype and invasion of pancreatic cancer cell line Panc-1 were also investigated. TGF-beta1 was detected in 12 cases (41.4%) of PC. Significant correlation was found between the expression of TGF-beta1 and lymph node involvement (P=0.047) and the depth of invasion (P=0.035). TGF-beta1 obviously promoted EMT of Panc-1 cell lines and their invasion ability was substantially enhanced. TGF-beta1 may promote the malignancy of pancreatic cancer by triggering EMT.

Objective To explore effects of human embryonic stem cells ( hESCs) on proliferation, invasion and migration of SK-Hep1 human hepatoma cells in the co-culture of micro environmen of hESCs and SK-Hep1 . Methods Single cultured SK-Hep1 cells were served as control group while SK-Hep1 which non-contact co-cul-tured with hESCs was regarded as experimental group .The proliferation ability of SK-Hep1 was measured by MTT method; invasion and migration ability of SK-Hep1 cells were detected by Transwell chamber method;the nucle-us variation and cell apoptosis of SK-Hep1 were detected by Hoechst33258 chromosome and flow cytometry. Results The proliferation of SK-Hep1 cells in the experimental group was obviously inhibited as compared with control group ( P<0.05 );the number of SK-Hep1 cells which passed through the Transwell chambers were sig-nificantly reduced as compared with control group in invasion and migration experiment ( P <0.05 ); more nucleus pycnosis and deformation appeared in experimental group than that in control group .And apoptosis rate of SK-Hep1 cells in the experimental group was significantly higher than that of in the control group ( P<0.05 ) .Conclusions Human embryonic stem cells have inhibitory effect on human hepatoma cell line SK-Hep1 .

Objective To explore the relationship between uric acid (UA) level and cognitive function in elderly patients with Parkinson,s disease (PD) and analyze the cognition related factors.Methods The clinical data of 60 elderly PD cases in our hospital from 2001 to 2009 were retrospectively analyzed. The 60 healthy people receiving medical examination in our hospital and matched by gender and age, were as control group. The information including gender, age, illness duration, Hoehn & Yahr stage (H-Y stage), serum UA level and Mini-Mental State Examination (MMSE) scale were recorded. Results The serum UA level was significantly lower in PD group than in control group [(262±53) μmol/L vs. (332±45) μmol/L, t=-6.724, P＜0.001]. In PD group, the serum UA level was slightly higher in males than in females [(271 ±48) μmol/L vs.(254±39) μmol/L, t=3. 282, P=0. 058]. The serum UA level was significantly lower in male PD patients than in male controls [(353± 62) μmol/L, t=- 5. 625, P＜0. 001], and was lower in female PD patients than in female controls [( 294 ± 59) μmol/L, t = - 4. 721, P = 0. 012]. There were no significant differences in serum UA level among different H-Y stage subgroups (P＞0. 05), but the serum UA level was lower in different H-Y stage subgroups than in control group (F=22. 039, P＜0. 01 ). There was no correlation between the UA level and the illness duration (r=0. 961, P＞0.05).The MMSE score had significant difference between elderly PD group and control group (t= -3. 168,P＜0. 001). In PD patients, the MMSE score was positively correlated with serum UA level (r=0. 789, P= 0. 000), and was negatively correlated with H-Y stage (r= - 0. 577, P = 0. 019 ), age (r= -0. 333, P=0. 034), but was not correlated with illness duration (r= -0. 333, P=0. 207) and BMI (t=- 0. 410, P= 0. 115). Conclusions The level of serum UA is lower in elderly patients with PD than in normal controls. There is correlation between the serum UA level and cognitive impairment. Lower serum UA level predicts worse cognitive scores.

Isoprene is an important precursor of synthetic rubber material. In our previous study, metabolic engineered Escherichia coli strain (BW-01) was constructed and used to produce isoprene. Based on the theory of protein budget, using synthetic biology strategies including the increased copy number of genes and rare codons, we regulated the expression of key enzyme to improve isoprene production in Escherichia coli strain. Under shake-flask conditions, isoprene productivity of the engineered strain (BW-07) increased by 73% compared with BW-01, reached 761.1 mg/L. It provides a reference for further studies.
Butadienes ; Escherichia coli ; genetics ; metabolism ; Gene Dosage ; Hemiterpenes ; biosynthesis ; Industrial Microbiology ; Metabolic Engineering ; Mevalonic Acid ; Pentanes ; Synthetic Biology

Objective To assess cognitive impairment of patients with idiopathic Parkinson's disease(PD)of different clinical subgroups. Methods The cluster analysis approach was used to classify PD patients on the basis of their clinical features, and then compare their cognitive function according their Montreal Cognitive Assessment (MoCA)score. Results One-hundred and six patients were divided into 5 groups by means of cluster analysis:A. young-onset(n = 35), B. rapid disease progression(n = 6); C. tremor dominant(n = 36), D. haplo-non-tremor dominant(n =18),E. non-tremor dominant with depression(n = 11). The MoCA score and proportion of abnormal scores differed among the 5 groups significantly,especially between the subgroup E(19.00 ±5.47)and the subgroup A(23. 66 ± 3.51)(P ＜ 0. 05), the former was more seriously impaired in clock drawing task(1.73 ± 1. 01 vs.2. 66 ±0. 59 ,t = -2. 904,P =0. 013), alertness(0. 55 ±0. 52 vs. 0. 91 ±0. 28 ,t = -2. 241 ,P =0. 045),semantic fluency(0. 64 ±0. 51 vs. 0. 97 ±0. 17 ,t = -3. 429,P =0. 001)and orientation domains than the latter(4. 91 ± 1.38 vs. 5.80±0.47,t = -3.321,P =0.020). Conclusions The cognitive impairment in PD patients are common as well as heterogeneous.