探讨强力定眩片联合倍他司汀对眩晕症患者血流动力学水平及ET-1、CGRP平衡状态的影响

目的:探讨强力定眩片联合倍他司汀对眩晕症患者血流动力学水平及内皮素-1(Endothelin-1,ET-1)/人降钙素基因相关肽(Calcitonin gene related peptide,CGRP)平衡状态的影响.方法:选取2020年9月至2022年3月期间我科收治的112例眩晕症患者作为研究对象,按随机数字表法分为倍他司汀组和联合组,各56例.倍他司汀组患者餐后口服甲磺酸倍他司汀片治疗,联合组患者在倍他司汀组基础上增加口服强力定眩片治疗.对比两组患者眩晕症状、血流动力学、ET-1/CGRP平衡状态、不良反应.结果:治疗3 m后,联合组的眩晕症状评分、眩晕障碍调查量表(Dizziness handicap inventory,DHI)评分低于倍他司汀组(P<0.05).联合组的右椎动脉(Right vertebral artery,RVA)、左椎动脉(Left vertebral artery,LVA)及基底动脉(Basilar artery,BA)均高于倍他司汀组(P<0.05).联合组的血清CGRP水平高于倍他司汀组,血清ET-1水平及ET-1/CGRP值低于倍他司汀组(P<0.05).两组患者的不良反应发生率无明显差异(P>0.05).结论:强力定眩片辅助倍他司汀治疗眩晕症,通过调节血清ET-1、CGRP物质的平衡改善血流动力学,显著改善患者的临床症状,且联合治疗不会增加不良反应,安全性高.     

厄贝沙坦联合胺碘酮治疗阵发性房颤的作用分析

目的:探究厄贝沙坦联合胺碘酮治疗阵发性房颤的效果.方法:选择 2020 年5 月至2021 年月本院收治的 80 例阵发性房颤患者作为研究对象.随机将患者分为对照组和观察组,每组各 40 例.对照组给予常规治疗,观察组在对照组基础上给予厄贝沙坦.比较两组心功能、炎症因子、心肌酶谱、内皮功能及不良反应发生情况.结果:治疗后,两组EF、NO高于治疗前,LVSD、左心房内径、ET-1、vWF低于治疗前,且观察组EF、NO高于对照组,LVSD、左心房内径、ET-1、vWF低于对照组(P＜0.05);观察组炎症指标和心肌酶水平均较对照组低(P＜0.05);两组不良反应发生率比较(P＞0.05).结论:厄贝沙坦联合胺碘酮可提高患者心功能,降低炎性反应及心肌酶谱水平,提升血管内皮功能,且安全性较高.     

地塞米松辅助倍他司汀对突发性耳聋患者血液流变学及听力的影响

目的:探讨地塞米松联合倍他司汀对突发性耳聋患者血液流变学及听力的影响.方法:按随机数字表法将我院于2018年7月至2019年7月收治的84例突发性耳聋患者,分为两组,均42例.对照组倍他司汀治疗,观察组在对照组基础上联合地塞米松治疗.治疗10d后,比较两组患者治疗有效率、血液流变学指标等.结果:两组血液流变学指标、内皮素(ET)、可溶性血管细胞间黏附分子-1(sVCAM-1)低于治疗前,降钙素基因相关肽(CGRP)高于治疗前,观察组血液流变学指标、ET、sVCAM-1较对照组低,CGRP较对照组高(P<0.05);两组不良反应比较(P>0.05).结论:地塞米松辅助倍他司汀可改善突发性耳聋患者耳部血液流变学及血管内皮功能,提升临床疗效.     

阿托伐他汀对冠状动脉介入术后血管内皮功能的影响

目的 探讨阿托伐他汀对冠状动脉介入治疗后血管内皮功能的影响.方法 64例稳定型心绞痛患者随机分为阿托伐他汀治疗组(简称实验组,34例)和常规治疗组(简称对照组,30例),两组病例在冠脉介入治疗前后次日采血,用酶联免疫吸附试验( ELISA) 测定血浆假血友病因子表达水平;用放射免疫测定法测定血浆内皮素1(ET-1)的表达水平;用酶法测定血浆一氧化氮(NO) 的含量.结果 与本组PCI术前比较,两组血浆vWF、ET-1表达水平在介入治疗术后均有不同程度的升高(P < 0.05),血浆NO水平有所下降(P < 0.05);与对照组比较,实验组血浆vWF、ET-1表达水平在介入治疗术后均有不同程度的下降(P < 0.05),血浆NO水平有所升高(P < 0.05).结论 冠状动脉介入术前给予阿托伐他汀治疗可以保护血管内皮功能.     

盐酸倍他司汀与氟桂利嗪联合治疗眩晕65例疗效观察

目的 观察盐酸倍他司汀、氟桂利嗪联合治疗眩晕的疗效.方法 把病人分成两组,治疗组(盐酸倍他司汀联合氟桂利嗪)和对照组(能量合剂加复方丹参注射液).结果 倍他司汀与氟桂利嗪治疗眩晕起效快,总有效率为94.28 %.对照组起效慢,总有效率70.0 %,2 组比较差异有非常显著意义(P< 0.01).结论 盐酸倍他司汀联合氟桂利嗪治疗眩晕疗效明显.     

复苏早期应用氨茶碱对腺苷及血管活性因子的影响

目的： 观察心搏骤停大鼠复苏早期应用氨茶碱对复苏成功率、血浆去甲肾上腺素(NE)、腺苷、一氧化氮(NO)水平及心肌组织内皮素-1(ET-1)、腺苷水平的影响。方法: 选60只SD大鼠，随机分为3组：手术对照组、肾上腺素治疗组和肾上腺素+氨茶碱治疗组各20只。分别测定治疗组自主循环恢复30 min后及手术对照组的血浆NE、腺苷、NO及心肌组织ET-1、腺苷的水平。结果: 肾上腺素+氨茶碱治疗组自主循环恢复时间明显少于肾上腺素治疗组(P＜0.05)。肾上腺素+氨茶碱治疗组自主循环恢复率为75%，30 min存活率为70%，肾上腺素治疗组分别为60%和55% (P>0.05)。2个治疗组自主循环恢复大鼠的血浆腺苷、NE水平及心肌组织ET-1、腺苷水平均明显高于手术对照组(P<0.05)，肾上腺素治疗组血浆NO水平也显著高于手术对照组(P＜0.01)，肾上腺素+氨茶碱治疗组血浆NO及心肌组织ET-1水平低于肾上腺素治疗组(P＜0.05)。结论: 在复苏早期应用腺苷受体拮抗剂氨茶碱不仅可提高复苏成功率，并且降低血浆NO和心肌组织ET-1水平，有利于减轻复苏后综合征。     

硝苯地平联合阿托伐他汀对冠心病伴高血压患者血压控制水平及血管内皮功能的影响

目的:分析硝苯地平联合阿托伐他汀对冠心病伴高血压患者血压控制水平及血管内皮功能的影响.方法:选择本院 2021 年 7 月至 2023 年 3 月收治的冠心病伴高血压患者(n=80),使用随机数字表法将纳入患者分为对照组(n=40)和观察组(n=40).对照组给予硝苯地平治疗,观察组给予硝苯地平联合阿托伐他汀治疗,两组均持续治疗 6 w.对比两组患者血压控制水平、血脂[低密度脂蛋白(LDL)、高密度脂蛋白(HDL)、总胆固醇(TC)]、血管内皮功能[血浆内皮素-1(ET-1)、一氧化氮(NO)]、疗效、不良反应.结果:治疗6 w后,观察组的舒张压和收缩压以及LDL、HDL、TC水平均低于对照组(P＜0.05).观察组患者ET-1 水平低于对照组(P＜0.05),NO水平高于对照组(P＜0.05).观察组治疗总有效率高于对照组(P＜0.05).两组患者不良反应发生率差异无统计学意义(P＞0.05).结论:硝苯地平联合阿托伐他汀能够有效控制冠心病伴高血压患者的血压水平和血脂水平,改善血管内皮功能,疗效更好.     

高压氧治疗对高血压性脑出血患者血清神经元特异性烯醇化酶、转化生长因子β1、血管内皮功能及免疫功能的影响

目的 探讨高压氧治疗高血压性脑出血对患者血清神经元特异性烯醇化酶(NSE)、转化生长因子β1(transforming growth factor,TGF-β1)、血管内皮功能及免疫功能的影响.方法 85例高血压性脑出血患者依据随机数据表法分为对照组(42例)和观察组(43例),对照组患者给予术后常规对症治疗,观察组患者在对照组的基础上给予高压氧治疗.比较治疗前后两组血清NSE、TGF-β1、血管内皮功能及免疫功能水平.结果 治疗前,两组的血清NSE、TGF-β1、一氧化氮(NO)、内皮素(ET)-1、CD3+、CD4+、CD8+、CD4+/CD8+水平比较,差异无统计学意义(P＞0.05).治疗后,两组TGF-β1、NO、CD4+、CD4 +/CD8+水平较组内治疗前均显著升高(P＜0.05),且观察组显著高于治疗后对照组,差异有统计学意义(P＜0.05);两组NSE、ET-1、CD8+水平均显著低于治疗前(P＜0.05),且观察组显著低于对照组,差异有统计学意义(P＜0.05);对照组治疗前后CD3+水平比较,差异无统计学意义(P＞0.05),观察组治疗后水平显著高于治疗前,且显著高于对照组,差异有统计学意义(P＜0.05).结论 高压氧治疗高血压性脑出血,可有效降低血清NSE水平,升高TGF-β1水平,改善患者血管内皮功能及免疫功能,具有重要临床价值.     

阻塞性睡眠呼吸暂停低通气综合征合并高血压患者内皮功能标志物检测的临床意义

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)合并高血压患者血清一氧化氮(NO)、血浆内皮素-1(ET-1)及内皮微粒(EMP)的水平变化及其相关性,为OSAHS合并高血压的早期预防和治疗提供依据。方法选择2016年1月至12月在吉林大学第一医院就诊的OSAHS患者80例:单纯OSAHS患者(单纯OSAHS组)40例,其中男性32例,女性8例,年龄(54.5±7.8)岁;合并高血压患者(合并高血压组)40例,其中男性33例,女性7例,年龄(54.2±7.3)岁。对照组为30例健康体检者,其中男性24例,女性6例,年龄(54.2±7.5)岁。分别采用比色法检测NO,双抗体夹心法检测ET-1,流式细胞技术检测EMP。结果合并高血压组、单纯OSAHS组ET-1、EMP水平均显著高于对照组(P0.01),NO低于对照组(P0.01);对照组、单纯OSAHS组、合并高血压组ET-1水平依次升高(F=19.661,P0.01),EMP水平亦依次升高(F=606.748,P0.01),NO依次降低(F=61.601,P0.01);合并高血压组EMP与ET-1正相关(r=0.841,P0.05),与NO负相关(r=-0.944,P0.05);单纯OSAHS组EMP与ET-1正相关(r=0.780,P0.05),与NO负相关(r=-0.897,P0.05)。结论 OSAHS患者合并高血压与ET-1、EMP、NO水平有关,联合监测上述指标早期改善OSAHS患者通气功能,能够评估OSAHS并发高血压的发生,为临床治疗提供参考。     

地芬尼多联合倍他司汀治疗对周围性眩晕患者临床疗效、血流动力学及不良反应的影响

目的:分析地芬尼多联合倍他司汀治疗对周围性眩晕患者临床疗效、血流动力学及不良反应的影响.方法:分析2021年2月20至2022年5月于本院进行周围性眩晕治疗的103例患者资料.根据治疗方法将其随机分为研究组(52例)和对照组(51例),对照组采用倍他司汀治疗,研究组采用地芬尼多联合倍他司汀治疗,观察两组治疗前、治疗7 d后的血流动力学指标中的基底动脉(Basilar artery,BA)、右侧椎动脉(Right vertebral artery,RVA)、左侧椎动脉(Left vertebral artery,LVA)以及治疗7 d后临床疗效和不良反应.结果:研究组临床疗效明显高于对照组(P<0.05);治疗前,两组血流动力学指标比较无统计学意义;治疗后,两组血流动力学指标与治疗前比较均升高,且研究组血流动力学指标升高水平明显高于对照组(P<0.05);两组不良反应比较无统计学意义.结论:地芬尼多联合倍他司汀治疗周围性眩晕患者能提高临床疗效,改善血液粘稠度和血流动力学,且安全性能较为良好.     

Modes of reinforcement and gender and culture of experimenter and subject: effects of "alien" and external reinforcement for Japanese and American men and women

In this study, we examined external and "alien" reinforcement (ER and AR. respectively) as a factor in social learning, and studied the combined effects of culture and reinforcement mode. A female (Experiment 1) and a male (Experiment 2) experimenters conducted experimental sessions. Both men and women, who grew up in the same culture as the experimenter, participated and performed the experimental task. A three-way interaction effect of experimenter gender, culture, and reinforcement mode was found on task performance. And the effect was more pronounced for a Japanese experimenter. A female and a male experimenters conducted Experiments 3 and 4, respectively; however participants this time were men and women who grew up in different cultures than the experimenter. Results indicated that the pattern of the subject gender and reinforcement mode interaction effect, when the experimenter was Japanese with American subjects, was exactly opposite to that when the experimenter was American. These experiments showed that AR was as effective for social learning as ER, and that the cultural backgrounds of experimenter and subject influenced AR and ER effectiveness.     

Rates of oxygen consumption and of anaerobic glycolysis in renal cortex and medulla of adult and new-born rats and guinea-pigs

1. Rates of oxygen uptake and of anaerobic glycolysis were estimated in slices from the renal cortex and medulla (a) of adult rats and guinea-pigs, (b) of new-born (1-, 5- and 21-day-old) rats and of guinea-pigs of 1, 12, 21, 24 and 120 hr age.2. In the adult rat, Q(O2) values for the cortex were 12.55 +/- 0.20 (22) and for the medulla: 8.56 +/- 0.17 (22) mul./hr.mg dry weight, while in the new-born rat (24 hr old) they were 10.99 +/- 0.46 (12) and 9.33 +/- 0.18 (9) mul./hr.mg dry weight respectively.3. Values for Q(CO2) (N2) (anaerobic glycolysis) in the 14 hr old new-born rat were in the renal cortex 9.65 +/- 0.35 (5) and in the medulla 7.39 +/- 0.43 (5) mul./hr.mg dry weight; while in the adult they were 2.25 +/- 0.08 (16) and 5.76 +/- 0.14 (16) mul./hr.mg dry weight, respectively.4. In the adult guinea-pig values for Q(CO2) (N2) were of the same order as in the adult rat, though the rate of O(2) uptake was for the cortex 8.12 +/- 0.22 (12) and for the medulla 5.02 +/- 0.23 (11) mul./hr.mg dry weight.5. Though the Q(O2) values in the renal cortex and medulla were smaller in the 1 hr old new-born guinea-pig, they were already increasing in the 12 hr old neonate.6. The results are discussed in the light of enzyme changes occurring during the process of maturation of the nephron as indicated by histochemical observations.     

Timing and intensity of early fevers and the development of allergies and asthma

BACKGROUND: Early childhood fevers appear to protect against later allergies and asthma. What is not known is the time in which fevers exert this effect and whether the degree of temperature increase is important. OBJECTIVE: We sought to examine the relationship between the time and degree of early fevers and later allergies and asthma. METHODS: Eight hundred thirty-five children from southeast Michigan were enrolled at birth. Clinic records from their first 2 years were abstracted for episodes of fever. At age 6 to 7 years, children underwent allergy testing. We examined fevers occurring within 6-month intervals in the first 2 years of life and outcomes at age 6 to 7 years. The primary outcome measures were allergic sensitization, asthma, asthma with allergic sensitization, and asthma without allergic sensitization. RESULTS: In the unadjusted analysis each episode of fever between 7 and 12 months of age was associated with a lower odds of allergic sensitization (odds ratio [OR], 0.71; 95% CI, 0.54-0.93) and asthma with allergic sensitization (OR, 0.43; 95% CI, 0.21-0.90) at age 6 to 7 years. Likewise, every 1 degrees C increase in the maximum temperature between 7 and 12 months was associated with a lower odds of allergic sensitization (OR, 0.77; 95% CI, 0.61-0.96) and asthma with allergic sensitization (OR, 0.62; 95% CI, 0.40-0.94). After adjusting for potential confounders, each episode of fever between 7 and 12 months was associated with a lower likelihood of asthma with allergic sensitization (adjusted OR, 0.33; 95% CI, 0.11-0.94) at age 6 to 7 years. CONCLUSIONS: Both the timing and intensity of childhood fevers appear to be important factors in the development of allergies and asthma.     

纳米水平分子成像与诊疗一体化研究进展与挑战

分子成像能以非侵入性的方式重现活体细胞的生理功能和生物学过程,提高疾病的早期和特异性诊断水平。纳米颗粒/材料具有物理性质可控性高、易于表面修饰、血液循环时间长和可功能化等优点,在疾病诊断与治疗中显示出巨大潜力。但如何阐明纳米材料多功能间的内在联系、解决其代谢及安全性等关键机制难题、实现纳米颗粒/材料多功能性到临床多功能...