Objectives To investigate the frequency of white coat hypertension (WCH) in all patients with hypertension (HT) and its effect on left ventricular hypertrophy (LVH).Methods A total of 224 patients (with an average age of 51 years, 155 males) with seated diastolic blood pressure of (95～114) mm Hg in clinic were recruited into this study. Their blood pressure was monitored dynamically for 24 h with non-invasive ambulatory method at the same day, and M-mode bi-dimensional echocardiography, electrocardiograph, determinations of serum levels of lipid and glucose were also performed for them. ResultsOverall, 10.3% of HT patients were classified as WHT, with the highest in the grade 1 HT patients (19.4%), 10.1% in the grade 2 HT and 1.6% in the grade 3 HT ( P

BACKGROUND:Bone marrow mesenchymal stem cells (BMSCs) can be induced to differentiate into neuron-like cells directional y. Accordingly, BMSCs can be used as seed cells theoretical y in constructing tissue-engineered peripheral nerves.
OBJECTIVE:Using combination of two cytokines to induce BMSCs differentiating into neuron-like cells directional y, and further to discusse its application in peripheral nerve injury.
METHODS:BMSCs were isolated and purificated from the bone marrow of Wistar rats by using the differential adherence method. Basic fibroblast growth factor and epidermal growth factor were used to induce the BMSCs differentiating into neuron-like cells. The morphological change was observed and the neuronal specific markers were detected by immunohistochemistry technique. The morphological and immunohistological changes were also studied after the induce agent were removed.
RESULTS AND CONCLUSION:With presence of morphological and immunohistochemical features of nerve cells induced by neurotrophic factors, BMSCs exhibited two or more processes that were interconnected as a meshwork;cellnucleus and nucleus could be observed with strong light refraction of cytoplasm. After immunohistochemical staining, neuroln specific enolase, neurofilament protein and synaptophysin protein positive cells were detected. A great amount of cells reversed to their original fibroblast-like morphology, and the expression of the three above-mentioned proteins decreased as the induce agent withdrawn. Our study showed that BMSCs can be induced to differentiate into neuron-like cells, but the transdifferentiation is a short-time reversible phenomenon.

Objective To investigate the value of D‐dimer (D‐D) ,cardiac troponin T(cTnT) and myocardial enzymogram detec‐tions in clinical diagnosis of acute myocardial infarction (AMI) .Methods 36 cases of AMI patients (AMI group) and 20 cases of healthy people (control group) were selected as study subjects .The plasma levels of D‐D ,cTnT and myocardial enzymogram of two groups were detected ,and the sensibility and specificity of these indexes were analyzed .Results The levels of D‐D ,cTnT ,CK ,CK‐MB ,AST and LDH in AMI group were significantly higher than those of control group (P<0 .05) .The positive rates of cTnT ,D‐D and myocardial enzymogram in AMI patients were 91 .67% ,69 .44% ,and 66 .67% ,respectively .The positive rate of cTnT was significantly higher than those of D‐D and myocardial enzymogram (P<0 .05) .Both of the diagnosis sensibility and specificity of plasma cTnT were significantly higher than those of D‐D and myocardial enzymogram (P<0 .05) .Conclusion Comparing with D‐D and myocardial enzymogram ,plasma cTnT has better diagnosis sensibility and specificity .Joint detection of kinds of indexes could improve the accuracy .

Objective To explore the curative effect and safety of CTLA-4Ig transgene for experimental autoimmune encephalomyelitis (EAE). Methods The adenovirus loaded CTLA-4Ig was injected into Wistar rat EAE models through the lateral cerebral ventricle. The clinical symptomatic and electrophysiological changes were observed to judge the efficiency of CTLA-4Ig. Results After injection of AdCTLA-4Ig into the lateral cerebral ventricle of Wistar rat EAE models, the time of EAE onset was delayed and the incidence rate was significantly reduced. And the transductive function tested by brain-stem auditory evoked potential (BAEP) and somatosensory evoked potential (SEP) was obviously improved. Conclusion CTLA-4Ig is effective in managing EAE.

Objective To detect the change of discharge phase of guinea pig hippocampal CA1 pyramidal cells during visual discriminative task with an effective and convenient program we designed. Methods Five guinea pigs were performed by extracellular single unit recording in vivo when they were performing visual discriminative task. Discharge signals of individual pyramidal cells were extracted from different frequency signals by wavelet transform (WT), which made it feasible to calculate discharge phase of pyramidal cells in terms of time correlation between discharge and ? rhythm. Results The discharge phase of CA1 pyramidal cells in the 1 to 5s interval before visual discriminative task (172??1.8?) was obviously earlier than that in the 6 to 10s interval after visual discriminative task (189??3.7?) ( P0.01). Conclusion The program we designed is capable of detecting discharge phase of pyramidal cells. Regular shift of discharge phase of hippocampal CA1 pyramidal cells emerges before and after performing visual discriminative task.

Objective To develop an indicator system for evaluating midwifery quality. Methods Guided by the latest evidence-based framework of midwifery quality,based on indicator selection principle,the indicator system for evaluating midwifery quality was preliminarily developed by literature review,expert meeting,theoretical analysis and expert consultation,for further validation through large-scale Delphi method. Results The indicator pool for mid-wifery quality evaluation was identified by literature review,including indicator name and definition of special indi-cator. The indicator system was finalized through comprehensive analysis and selection,and consisted of 45 indica-tors. The expert consultation questionnaire response rate was 100%,the rate of experts who provided written sug-gestions was 81.3%,the authority coefficient was 0.92,the coefficients of variation of indicators ranged from 0 to 0.29. Conclusion The preliminarily developed indicator system for midwifery quality evaluation guided by the lat-est evidence-based framework of midwifery quality was scientific,oriented and accessible,which could be further ex-amined through large-scale Delphi method.

Brain injury in preterm infants is an important reason for making the newborn disability.Neonatal cerebral injury of imaging examination method has a time lag.Looking for a simple,timely,accurate predictor of biological markers of brain injury in preterm infants is particularly important.In this paper,the role of S100B protein,glial fibrillary acidic protein and neuron-specific enolase of brain injury in preterm infants was reviewed,and the significance of early diagnosis of brain injury in preterm infants was discussed.

Objective: To investigate the relationship between 24-hour ambulatory pulse pressure (24hPP), 24-hour ambulatory pulse pressure index (24hPPI), night-time ambulatory pulse pressure index (NPPI) and coronary artery disease (CAD) occurrence in hypertension patients. Methods: A total of 305 subjects received ambulatory blood pressure monitoring (ABPM) in our hospital from 2016-05 to 2016-07 were enrolled. Base on ABPM information, 24hPP, 24hPPI and NPPI were calculated to analyze their relationship to CAD occurrence. 24hPP was defined by 24-hour mean systolic blood pressure (24hSBP) minus 24hDBP, 24hPPI by the ratio of 24hPP/24hSBP and NPPI by the ratio of night (22:00-6:00) PP/SBP. Results: There were 222/305 (72.8%) subjects with hypertension. Compared with normotension subjects, hypertension patients had increased 24hPP: (49.0±11.6) mmHg vs (42.2±7.4) mmHg, P<0.001, 24hPPI: (0.39±0.06) vs (0.37±0.05), P=0.004 and NPPI: (0.40±0.07) vs. (0.38±0.06), P=0.009 respectively. 116/222 (52.3%) hypertension patients suffered from CAD. Compared with non-CAD patients, CAD patients presented elevated 24hPP: (50.9±12.2) mmHg vs (47.0±10.6) mmHg, P=0.013, 24hPPI: (0.41±0.07) vs. (0.38±0.06), P<0.001 and NPPI: (0.42±0.07) vs. (0.38±0.06), P<0.001 respectively. Among 83/305 (27.2%) normotension subjects, the above indexes were similar between CAD patients and non-CAD subjects. Logistic regression analysis demonstrated that with adjusted age, gender, body mass index (BMI) and antihypertensive medication, 24hPPI [OR=1.95, 95% CI 1.11-3.44, P=0.020] and NPPI [OR=2.21, 95% CI 1.28-3.82, P<0.01] were related to CAD occurrence. ROC curve analysis showed that 24hPPI and NPPI were superior to 24hPP for CAD screening and prediction in hypertension patients. Conclusion: 24hPPI and NPPI were closely related to CAD occurrence in hypertension patients, they were both helpful for CAD screening and prediction in hypertension patients.

Objective To study the relationship of cataract with lens epithelial cell apoptosis and autophagy by observing the ultrastructure of age-related and diabetic cataract lens epithelial cells.Methods Transmission electron microscope was used to observe the apoptotic and autophagic morphology of the lens epithelial cells in 5 cases with age-related and diabetic cataract respectively,and in 2 cases with normal lens.Results The apoptosis and autophagy of lens epithelial cells was found in cases with age-related and diabetic cataract,while no expression was observed in control lens epithelial cells.Conclusion The apoptosis and autophagy of lens epithelial cells are closely related to age-related and diabetic cataract formation.

Objective To investigate the incidence of retinopathy of prematurity (ROP) in our hospital and to explore the risk factors of ROP.Methods Premature infants hospitalized in our hospital in January 2010 to December 2012 were chosen,and the gestational ages were less than 36 gestational weeks,birth weights were under 2 500 g.All the cases underwent ROP screening at two weeks after birth,and then they received regular follow-up.Children with systemic conditions and oxygen to the mother during pregnancy,oxygen,preeclampsia,placental abruption,and other factors were analyzed.Results Two hundred and fifty-five cases completed the retinal screening,terminated follow-up after the peripheral retinal neovascularization or disease degradation.We found ROP in 16 cases (26 eyes),ROP prevalence rate was 6.3％ (5.1％),including phase Ⅰ 12 cases,phase Ⅱ3 cases,phase Ⅲ 1 case.Gestational age,birth weight,inhale oxygen time,oxygen concentration,mechanical ventilation were associated with ROP (P ＜ 0.05).Mother oxygen during pregnancy,preeclampsia,placental abruption had nothing to do with the incidence of ROP.Conclusion Premature birth,high concentrations of oxygen,mechanical ventilation are major risk factors of ROP.Timely screening of ROP and found early to do the retinal laser photocoagulation in premature,can control the disease,reduce the blindness rate of premature infants.