Objective: To assess the effectiveness of sexual education intervention among seventh grade students, and to provide support tools for sex education for middle school students. Methods: Seventh grade students from six schools in Longnan, Gansu Province were randomly assigned to an intervention group (251 students) and a control group (222 students). After 8 weeks of school based sex education in the intervention group, the results were compared before and after the intervention using self assessment knowledge and attitude scales. Results: The knowledge score in the control group decreased by (2.46±1.21) in the follow up survey compared to the baseline survey. The intervention group scored (30.54±1.34) significantly higher than baseline ( t =22.76, P <0.01). After adjusting the sex ratio to 1∶1, the mean difference between the two groups after the intervention was (27.86±1.87) ( t =14.90, P <0.01). The interaction dit between time and intervention was (33.01±2.50) ( t =13.19, P <0.01) in difference analysis. The intervention effect size Hedge s g on knowledge in the intervention group was 1.27. The proportion of positive attitudes towards sex increased in the intervention group on 12 out of 14 questions, with percentage ranging from 7.5% to 25.9%. At the follow up, the improvement in attitudes towards 12 questions was substantial for girls and 8 questions for boys in the intervention group. The attitude effect size Hedge s g was 0.99 in the intervention group. Conclusion The implementation of school based sex education is capable of significant improving students sexual knowledge and attitude in the short term.

In case of ischemic stroke(IS),thrombus in the vascular system can cause ischemia and hypoxia in brain tissue,produce inflammatory cytokines and cause brain tissue damage,while reactive oxygen species during ischemia-reperfusion cause stress injury.Conventional drug administra-tion is limited by the selective permeability of the blood-brain barrier and the low bioavailability of the drug itself,and its therapeutic effect against IS is unsatisfactory.Nanomedicine is expected to bring hope in that it has a unique mechanism of action and can cross the blood-brain barrier to reach the periphery of the infarct,release drugs or therapeutic genes,and exert a therapeutic effect.Nanomedi-cine inhibits platelet aggregation,enhances the efficacy of thrombolytic drugs,dissolves thrombus,increases blood supply to ischemic areas,eliminates reactive oxygen species and weakens injury response by fighting inflammatory cytokines.Loaded therapeutic genes regulate the differentiation pro-cess of neural stem cells,increase the number of neurons,induce the occurrence of blood vessels,and enhance the repair function of brain tissue.Nanomedicines can not only improve pharmacokinetics and pharmacodynamics to achieve more effective drug treatment,but also use nanoimaging technology to achieve real-time monitoring and condition assessment of therapy.

OBJECTIVETo understand the infantile nocturnal sleep-wake pattern developmental trajectory with Actiwatch, which would benefit the clinical assessment of infantile sleep.

METHODThis study was a longitudinal study conducted between 7 Oct, 2009-30 Oct, 2011 in 10 hospitals of 9 cities of China ( Beijing, Xi'an, Qingdao, Wuhan, Changsha, Chongqing, Huzhou, Xiamen and Liuzhou). Actiwatch was used to track the sleep-wake pattern development trajectory of healthy infants in the first year of life in the home setting. Participating infants were followed up at 10th day and 28th day during the first month, and then monthly from the second to the sixth month after birth, and then at ninth and twelve months of age respectively. Meanwhile, infantile sleep was observed continuously for about 60 hours at each visit. According to the characteristics of repeated measurement data of this study, two-level random effect model was adopted to analyze the trend of infantile nocturnal sleep-wake parameters changing with age, and the gender difference.

RESULTA total of 473 healthy infants were included in this study, among whom 246 (52.0%) were boys, and 227 (48.0%) were girls; 355 (75.1%) infants completed the whole year follow-up survey. With infants' age increasing, the latency of infants' nighttime sleep onset decreased from 66.8 minutes on 10th day to 15.5-18.7 minutes at 6-12 months of age. The number of night wakes also decreased with age, while uninterrupted sleep periods lengthened with age. On the 10th day, there were 3.0 times of nightwaking on average, and the longest continuous sleeping interval lasted for 227.6 minutes on average. At 12-month of age, infants could sleep continuously for 350.9 minutes at most on average, while the number of nightwaking decreased to 1.6 times per night on average. Generally, nighttime sleep efficiency increased from 66.3% on the 10th day to 86.3% at 12-month of age. The differences of sleep-wake patterns between boys and girls presented as boys' nocturnal longest uninterrupted sleep period was 19 minutes shorter(266.6 vs. 285.6 min), and the average nighttime sleep efficiency was 2.2% lower (74.2% vs. 76.4%) compared with girls respectively. And the differences of sleep efficiency between boys and girls reduced gradually along with the growth.

CONCLUSIONDuring the first 6 months after birth, infantile sleep-wake pattern undergo obvious change. The capability of sleep-onset and uninterrupted sleep improved with age, and the sleep efficiency increased.

China ; Female ; Humans ; Infant ; Infant, Newborn ; Longitudinal Studies ; Male ; Sleep ; physiology ; Surveys and Questionnaires

The increasing incidence of chronic kidney disease (CKD) has become a major global public health problem. Hypertension and CKD can cause and effect each other and often coexist. Controlling blood pressure is one of the core tasks in the treatment of CKD. Over the past 10 years, many large clinical studies have provided evidence-based medical evidence for the updating and revision of hypertension management guidelines, but there remains controversies in targets of blood pressure in hypertensive patients with CKD. Personalized and evidence-based management is the key to achieve effective control of blood pressure and slow the progression of CKD. This review will summary the epidemiological status of hypertensive patients with CKD and the progress related to the targets of controlling blood pressure in CKD.

The human biorhythm is closely related to the blood pressure level and the effect of the antihypertensive treatment of hypertension. The human circadian biorhythm changes the therapeutic effect of antihypertensive drugs by affecting the pharmacokinetics and pharmacodynamics; at the same time, following the human blood pressure rhythm in the treatment of hypertension can reduce the risk of target organ damage and cardiovascular and cerebrovascular events. Therefore, in the treatment of hypertension, the administration time and drug dosage should be adjusted according to the pharmacochronology to obtain the best curative effect and minimal side effects, and reduce the occurrence of adverse reactions and complications.

ObjectiveTo evaluate the effect of standardized blood pressure measurement in consulting room （SBPM） model on blood pressure screening of non-hypertensive patients in community. MethodsFour communities were randomly selected from Fengxian District of Shanghai， and non-hypertensive patients in the communities were included for screening. Based on the communities， participants were further classified into the intervention group and control group. A one-year intervention study was conducted from January 1， 2021 to December 31， 2021. The intervention group received the intervention measures of standardized measurement， and the control group remained the routine measurement. The distribution of blood pressure values and last digit of the values between the intervention group and control group were tested using Chi-square test and normality test. Then changes in abnormal blood pressure rate before and after the intervention were determined by double difference method. Statistical analysis was performed using SPSS 20.0. ResultsA total of 15 368 participants were included in the intervention group， and 19 811 participants in the control group. After the intervention， range of the last digit of blood pressure values in the intervention group was 9.55%‒10.41%， of which that of systolic and diastolic blood pressure were equally distributed （P=0.932 and 0.871， respectively）. The range of the last digit in the control group was 1.31%‒42.58%， of which that of systolic and diastolic blood pressure showed unequal distribution （P<0.001）. Through one-year standardized measurement intervention， the abnormal rate of blood pressure in the intervention group was 26.29%， which was 7.61 times as high as that in the control group （OR=7.55， 95%CI： 6.75‒8.57， P<0.001）. ConclusionStandardized blood pressure measurement in consulting room is suitable for the screening of blood pressure measurement in community， which has higher data quality than that of routine measurement.