Objective To explore the hemodynamic changes in the brains of newborns with intracranial hemorrhage.Methods Totally,61 newborns,born in Anyang Maternal and Child Health Hospital of Henan Province,with intracranial hemorrhage diagnosed by ultrasound in early neonatal period,and 50 healthy newborns,also born in the same hospital from December 1,2010 to June30,2012,were selected.Intracranial hemorrhage newborns were graded according to the severity of hemorrhage and divided into mild (n=45) and severe groups (n =7).The peak systolic flow velocity (Vs),end diastolic velocity (Vd),mean flow velocity (Vm) and resistance index (RI) in the middle cerebral artery (MCA) and anterior cerebral artery (ACA) of brain were measured by Doppler ultrasound.Ttest was applied for statistical analysis.Results Among the 61 neonates with intracranialhemorrhage,12(19.7％) were grade Ⅰ,42(68.9％) were grade Ⅱ,6(9.8％) were grade Ⅲ,and one (1.6％) was grade Ⅳ.The Vs,Vm and Vd of MCA and ACA in the mild and severe intracranial hemorrhage group were significantly lower than those in the control group,the differences were statistically significant [MCA:(55.1±9.1) cm/s,(53.0±6.5) cm/s vs (60.1± 10.3) cm/s;(34.2±6.1) cm/s,(32.5±5.2) cm/s vs (38.2±6.9) cm/s; (17.1±4.8) cm/s,(15.3± 4.0) cm/svs (20.2±5.3) cm/s.ACA:(41.3±11.7) cm/s,(39.4±9.2) cm/s vs (45.3±9.8) cm/s;(25.2±5.8) cm/s,(23.3±4.9) cm/s vs (28.1±5.9) cm/s;(15.0±3.9) cm/s,(13.2±3.1) cm/s vs (15.9±3.8) cm/s,all P＜0.05].But the RI values were significantly higher in the control group,the differences were statistically significant (MCA:0.70 ± 0.10,0.77 ± 0.07 vs 0.62 ± 0.10 ; ACA:0.67±0.06,0.73±0.08 vs 0.61±0.05;all P＜0.05).TheVs,Vm and Vd of MCA and ACA in the severe intracranial hemorrhage group were significantly lower than in the mild hemorrhage group,while the RI values were significantly higher,and the differences were statistically significant (all P＜0.05).Conclusions Newborns with intracranial hemorrhage have significant hemodynamic changes in the brain and more prominent changes could be found in those with severe intracranial hemorrhage.

The potential advantage of Traditional Chinese Medicine(TCM) theories of disease prevention,especial the thinking mode of "health preservation from both physique and spirit "has been generally recognized and widely understood by international society increasingly.In TCM,methods of disease prevention are various and the "health preservation from both physique and spirit" is praised the highest.This article demonstrates the theory that preserving the spirit firstly and then combining with physique,also the methods of keeping an undisturbed spirit and protecting the physique from any harm,for the purpose to make new contribution to the mankind’s health-care industry.

Objective To explore the effective disinfection and management measures of standby aspirators. Methods Randomly sampled 17 standby aspirators in our hospital and examined whether their liquid storage bottles and covers were contaminated by pathogens.According to the situation,we developed appropriate measures to intervene.4 months after intervention,we sampled 17 standby aspirators which were tested again. Results 82.4% liquid storage bottles and 88.2% covers were contaminated. While the contamination rate after intervention was zero.The pathogens found were mainly Pseudomonas Aeruginosa, Klebsiella pneumoniae and other opportunistic pathogens.Conclusions To strengthen the disinfection management of standby aspirators can control the contamination of standby aspirators.

Objective To compare the curative effect,patient's satisfaction degree,and adverse reaction on seborrheic keratosis by level-cutting and frozening with liquid nitrogen.Methods 68 cases were randomly divided into liquid nitrogen frozening group(32 cases,group A)and flat-cutting group (36 cases,group B).Liquid nitrogen was spurted until freeze-thaw status in group A,and the ramnant skin lesion needed for other treatments,but no more than 3 times.The skin lesion in group A was completely resected with scalpel following its basilar part after local anesthesia,and elaeoyarn was pressurized to stop bleeding on wound,which was removed afer 5 days.The effects,satisfactory degree and adverse reaction were analyzed after 3 mouths of treatment.Results The effect and satisfactory degree in group B was significantly better than that in group A(P＜0.01),but the adverse reaction in group B was significantly lower than that in group A(P＜0.05).Conclusion Compared with liquid nitrogen frozening,the therapy of flat-cutting has advantages to seborrheic keratosis,with good efficacy,high patient's satisfaction and low adverse reaction.

Objective To investigate the correction effect and influence of orthokeratology lens and aspheric spectacles on adolescent myopia.Methods A total of 124 cases of juvenile myopia in our hospital from January 2012 to January 2013 was divided into experimental and control groups according to the principle of random.Patients in both groups were followed for a period of 2 years,patient's vision,binocular refraction,and eye axis length were recorded.Results Unaided visual acuity of patients in the experimental group was increased significantly,the trend was clear with statistical significance (P ＜ 0.05).For the control group of patients,visual acuity was significantly decreased after 2 years (P ＜ 0.05).For the experimental group,patients'diopters were decreased from (4.29 ± 1.23)D to (4.23 ± 0.04)D after wearing glasses.The difference was statistically significant (P ＜ 0.05).For the control group,patients' diopters were increased from (4.22 ± 1.19)D to (5.68 ± 1.13)D after wearing glasses.The difference was statistically significant (P ＜ 0.05).The difference between two groups at the same time was statistically significant (P ＜ 0.05).In the experiment group,for patients wearing glasses,their axis lengths were (24.7 ±0.19)mm after six months.After 1 year,their axis lengths were (24.5 ±0.16) mm,and after 2 years,their axis lengths were (24.3 ± 0.20) mm.Compared to non-wearing glasses before,the difference was not statistically significant (P ＞ 0.05).In the experiment group,for patients wearing glasses,their axis lengths were (24.7 ±0.19)mm after six months.After 1 year,their axis lengths were (24.5 ±0.16)mm,and after 2 years,their axis lengths were (24.3 ± 0.20) mm.Compared to non-wearing glasses before,which was (24.3 ± 0.21) mm,the difference was not statistically significant (P ＞ 0.05).In the control group,for patients wearing glasses,their axis lengths were (24.8 ± 0.20) mm after six months.After 1 year,their axis lengths were (24.9 ±0.17) mm,and after 2 years,their axis lengths were (25.7 ±0.15) mm.Compared to non-wearing glasses before,which was (24.5 ± 0.18)mm,the difference was statistically significant (P ＜ 0.05).Conclusions Orthokeratology lenses can reduce myopia in adolescent patients,reduce the degree of anisometropia,and prevent the increase of the axial length.It can achieve the purpose of myopia control.

Objective To study the effects of lovastatin in the therapy of primary hypercholesterolemia on insulin sensitivity,vascular endothelial function and microcirculation in patients with coronary heart disease.Methods Forty-five patients,diagnosed as coronary heart disease and primary hypercholesterolemia,were treated by lovastatin for 8 weeks.Serum lipids,fasting plasma glucose (FPG),fasting insulin(FINS),nitric oxide(NO),endothelin(ET),6-keto-prostacyclin F 1?(6-keto-PGF 1?),thromboxane B 2(TXB 2) and nail-fold microcirculation (NFM) were measured and the score value of NFM and insulin sensitivity(IS) index were calculated in treatment group before and after 4-week and 8-week treatment with lovastatin.Forty healthy persons were taken as control.Results In treatment group,ET,TXB 2,and the score value of NFM were higher and NO,6-keto-PGF 1? and IS index were lower than those in control group.After 4-week lovastatin treatment,compared with baseline value,ET,TXB 2,and the score value of NFM significantly decreased,which were 63.19?18.72 vs 53.16?15.23 (P

Objective To explore the relationship between the expression of Dishevelled2 and Vangl2 proteins and the development of mouse palate. Methods Twenty-four pregnant mice were randomly divided into eight groups, and the mouse embryos were obtained at eight clock of the pregnant day of thirteen(p13d8h), p13d14h,p13d22h,p14d8h,p14d14h,p14d22h,p15d8h and p15d22h respectively, then paraffin sections were made conventionally.The distrubution and dynamic changes of Dishevelled2 and Vangl2 proteins in the embryonic palatal shelves were detected by immunohistochemistry and image analysis. Results It was found that the two kinds of proteins expressed in the epithelium and mesenchyma of the mouse palatal shelves at different development stages. The expression levels of the Dishevelled2,in both of the epithelium and mesenchyme of the palatal shelves, increased first (p13d8h-p13d22h),then decreased rapidly(p13d22h-p14d14h), and then increased again(p14d14h-p15d22h). The expression of Vangl2 protein in the mesenchyma showed a similar trend to that of the Dishevelled2, but there was no obvious regularity in the epithelium. In addition, the expressive levels of both kinds of proteins in the epithelium were significantly higher than those in mesenchyma of the palatal shelves. Conclusion Dishevelled2 and Vangl2 proteins might directly or indirectly take part in the regulation process of mouse palate morphogenesis.

Epidemiologic studies suggest that intake of excess all-trans-retinoic acid (RA) during embryogenesis induces various developmental defects and the central nervous system (CNS) represents a major site of the teratogenic action of RA. It is therefore important to understand which parameters are affected early by excessive RA in order to devise and improve protective nutritional strategies. The modulations of beta-catenin and caspase-3 levels were investigated in the KM mouse embryo following maternal treatment with a single oral dose of 30mg/kg body weight of RA during the neurula period. In addition, retinoic receptors (RARs) are key transcription factors regulating gene expression in response to RA-activated signals. So the experiment was designed to evaluate whether the alterations in protein expression of RAR alpha and beta during the time of neural tube closure were induced by excessive RA. Maternal intake of excess RA induced early downregulation of RAR alpha and beta, beta-catenin and caspase-3 expression, which was followed by an increase in their expressive levels in the neural tube tissue of mouse embryos. This finding suggests that the alterations in the expression profile of RAR alpha and beta, beta-catenin and caspase-3 may be implicated in the teratogenesis induced by excess RA in KM mouse embryo.

BACKGROUND: It is of great significance to understand the effects of different components of blood pressure on the occurrence of cerebrovascular diseases and administer proper decompression treatments in various situations.OBJECTIVE: To study the relationship of increased pulse pressure with the occurrence and severity degree of cerebral infarction by analyzing the data of pulse pressure recorded in hospitalized patients with acute cerebral infarction.DESIGN: Case-control analysis.SETTING: First Affiliated Hospital of Harbin Medical University.PARTICIPANTS: A total of 300 patients hospitalized at the First Affiliated Hospital of Harbin Medical University between June 2002 and January 2003 for ischemic cerebral infarction were enrolled, including 196males and 104 females aged (57.9±11.9) years. Another 199 persons who came to the same hospital for physical examination at the same period were set as normal group, including 110 males and 89 females aged (55.9±12.4)years.METHODS: ① Measurement of blood pressure: Systolic pressure and diastolic pressure of each person were recorded with mercury sphygmomanometer at the site of brachial artery of the right upper extremity and pulse pressure was calculated. ② Evaluation of neurological impairment:Upon hospital admission, each patient with ischemic cerebral infarction was evaluated with the stroke scale made by the National Institute of Health (NIHSS), in which a higher score means more severe infarction.MAIN OUTCOME MEASURES: ① Comparison of blood pressure parameters of subjects in the two groups. ② Distribution of different pulse pressure levels in the two groups. ③ Comparison of pulse pressure of subjects of different age in the two groups. ④ Results of non-parameters tests of neural function loss in cerebral infarction patients with different pulse pressure levels.RESULTS: ① Mean systolic pressure: It was significantly higher in the case group than in control group [(152±22), (133±19) mm Hg, t' =10.494,P ＜ 0.01]. Mean diastolic pressure: It was higher in the case group than in control group [(93±14), (81±11) mm Hg, t' = 10.129, P ＜ 0.01]. Meanpulse pressure: It was higher in the case group than in control group [(59.61±11.86), (51.93±14.10) mm Hg, t' =5.612, P ＜ 0.05]. Pairwise corre lation analysis showed that Pearson correlation coefficient between pulse pressure and systolic pressure was 0.789 (P ＜ 0.01); Pearson correlation.coefficient between pulse pressure and diastolic pressure was 0.169 (P ＜ 0.01). Therefore, there was a close correlation between pulse pressure and systolic pressure. ② Pulse pressure was distributed between 60 mm Hg and 69 mm Hg in most subjects in the case group, which accounted for 27.7%.It was 40-49 mm Hg in control group, which accounted for 35.7%. It indicated that the incidence rate was high when the pulse pressure was over 60 mm Hg in cerebral infarction. ③ Pulse pressure increased with age.The level of pulse pressure in 40-69 years case group was higher than that in 40-69 control group [(54±16), (45±9)mm Hg, t=4.86, P=0.000]. ④ Patients with cerebral infarction of different levels of pulse pressure were given non-parameter tests of neurological impairment evaluation. The resuits of Kruskal-Wallis test were χ2=4.779, P=0.572 ＞ 0.05; results of median test were as x2=8.365, P=0.213 ＞ 0.05. The results of the two non-parameter tests suggested that there was no significant differences in hospitalization evaluation, that is, although the pulse pressure increased obviously in cerebral infarction, the degree of increase had no correlation with the severity of neurological impairment.CONCLUSION: The increase of pulse pressure is related to the occurrence of cerebral infarction and is also an important factor for evaluating cerebral infarction. However, pulse pressure change is not related to the severity of cerebral infarction.