成年期甲减大鼠海马SynaptotagminⅠ表达和替代治疗的效果

目的 探讨成年期甲状腺功能减退症(简称甲减)大鼠海马内突触结合蛋白(SytⅠ)的表达及甲状腺素替代治疗后的恢复状况,探讨甲减脑损伤及恢复可能的分子基础.方法 用丙基硫氧嘧啶(PTU)建立成年期大鼠甲减模型,免疫组织化学方法分析甲减组、替代治疗组、正常对照组大鼠海马内SytⅠ的表达情况.结果 甲减组大鼠血清T3(triiodothyronine, T3)、T4(tetraiodothyronine, T4)显著低于正常对照组(P<0.05);海马CA1、CA3和齿状回(dentate gyrus,DG区)SytⅠ的蛋白表达水平显著低于正常对照组(P<0.05或P<0.01).甲状腺素替代治疗后,血清T3、T4恢复至正常水平(P>0.05);SytⅠ的蛋白表达水平在DG区分子层明显增加,达到正常水平(P>0.05);其他区域与甲减组比较无增加,仍明显低于正常对照组(P<0.05).结论 成年期甲减降低海马内SytⅠ蛋白表达,短期替代治疗可使血清甲状腺素恢复正常,部分SytⅠ的蛋白表达恢复.     

心脏术后ICU病人心理焦虑水平浅析

目的调查心脏术后ICU病人的心理焦虑水平，探讨其影响因素，为进一步进行护理研究提供依据。方法采用方便取样的方法选择心外ICU的成年病人52例，分别在病人术前、术后进入ICU中及转入普通病房后，应用状态一特质焦虑问卷（STAI）对病人的心理焦虑水平进行测评，同时以访谈的形式收集病人资料。结果手术前后病人焦虑差异无显著性，无统计学意义。转出ICU前后差异有显著性。结论心脏外科ICU病人在ICU内焦虑水平较高，应采取相应的护理措施降低焦虑水平；转出后焦虑水平下降。     

培哚普利对心肌梗死大鼠内质网应激分子GRP78和Caspase-12表达的影响

目的探讨培哚普利改善心功能的作用与内质网应激反应(ERS)的关系。方法通过结扎大鼠冠状动脉前降支建立心肌梗死模型,将24h内存活大鼠随机分为模型组(n=8)和培哚普利组(n=8),另设假手术组作为对照(n=8)。术后第2天起培哚普利组以2mg/(kg.d)培哚普利灌胃给药,模型组和假手术组按体重给予等量生理盐水,每天1次,持续4周。采用超声心动图检测左室舒张末期内径(LVEDD)、左室收缩末期内径(LVESD)、射血分数(LVEF)以及短轴缩短率(FS)等指标。免疫组织化学或Western blotting检测内质网应激相关蛋白GRP78和Caspase-12的表达水平。结果与假手术组相比,心肌梗死4周后,模型组LVEDD和LVESD明显升高,LVEF和FS明显下降,内质网应激相关蛋白GRP78和Caspase-12表达增加,培哚普利明显缓解了上述指标的变化。结论培哚普利改善心功能的作用可能是通过降低GRP78和Caspase-12的表达,阻断ERS途径实现的。     

癌症患者生育忧虑概念分析

目的 通过对癌症患者生育忧虑概念的发展、属性、案例、前因、后果等进行系统分析,厘清癌症患者生育忧虑的概念内涵。方法 收集自建库至2021年3月4日在中国知网、万方、维普、PubMed、Web of Science、PsycInfo等数据库中癌症患者生育忧虑相关文献,采用Walker和Avant的概念分析法进行分析。结果 通过分析相关文献归纳出癌症患者生育忧虑3个概念属性:对生育不确定性的过度认知;愤怒、愧疚、担忧等负性情感反应;癌症及治疗和家庭生育计划间的矛盾冲突。结论 对癌症患者生育忧虑的概念进行系统分析,可以帮助医护人员在诊疗和护理过程中更好地识别癌症患者生育忧虑的状况,并通过相应的干预措施,减轻其生育忧虑,提高生命质量。     

Effect of thyroid hormone level on the expression of synaptotagmin Ⅰ in adult rat hippocampus

Objective To observe the effect of different thyroid hormone level on the expression of synaptotagmin Ⅰ(Syt Ⅰ) in adult rat hippocampus. Methods All 28 adult male SD rats were assigned randomly into hypothyroid, hyperthyroid and control group, hypothyroid group was established by daily intraperitoneal injections with propylthiou raci(PTU, 10.0 mg/kg body weight) for 6 weeks and hyperthyroid group with L-Thyroxine (L-T4, 0.5 mg/kg body weight) for 3 weeks. Radioimmunity method was used to assay the levels of serum T3 and T4, immunohistochemical S-P technology to assay the levels of Syt Ⅰ protein in hippoeampus CA1, CA3 and dentate gyrus (DG). The layers analyzed in the different subfields include the polymorphic cell layer(the stratum oriens, SO), pyramidal cell layer(PCL), stratum radiatum (SR), lacunosum-molecular layer (SLM) in CA1 and CA3, granular cell layer(GL) and molecular layer(ML) in DG. Results The levels of serum T3 and T4[(0.34±0.12), (41.03± 11.37)nmol/L]in the hypothyroid rats were significantly lower than those in the control group[(0.65±0.15), (55.20±10.68)nmol/L, P < 0.01 or < 0.05], and the positive granule of Syt Ⅰ was significantly lower in PCL and SR of CA1 and CA3, GL of DG. The average optical value responsible for Syt Ⅰ immunoreactivity was obviously reduced in SO(0.048±0.007), PCL(0.299±0.035), SR(0.042±0.007), SLM(0.038±0.006) of CA1, PCL(0.085± 0.019), SR(0.040±0.011), SLM (0.038±0.006) of CA3, GL (0.076±0.019) of DG than normal controls (0.068± 0.014, 0.376±0.053, 0.053±0.008,0.056±0.009,0.118±0.026,0.052±0.010,0.053±0.009,0.099±0.015; P< 0.01 or < 0.05). Serum T3 and T4 levels [(1.43±0.30), (157.18±19.95)nmol/L]of hyperthyroid rats were significantly higher than those of control group(P < 0.01). The value was reduced in PCL(0.322±0.050), SR(0.039±0.006), SLM (0.042±0.006) of CA1, PCL(0.098±0.034), SR(0.046±0.013), SLM(0.046±0.010) of CA3 and GL(0.085± 0.024), ML (0.042±0.009) of DG (P < 0.05 or < 0.01). Conclusion Adult-onset of hypothyroidism and hyperthyroidism can reversibly decrease the expression of Syt Ⅰ in CA1, CA3 and DG regions of hippocampus.     

甲状腺激素对成年大鼠海马内突触结合蛋白Ⅰ表达的影响

目的 观察不同甲状腺激素水平对大鼠海马突触结合蛋白Ⅰ(syt Ⅰ)蛋白表达水平的影响.方法 复制雄性SD大鼠成年期甲状腺功能减退症(甲减)、甲状腺功能亢进症(甲亢)模型,用放射免疫法测定血清甲状腺激素T3、T4水平,用免疫组织化学超敏链霉菌抗生物素蛋白-过氧化物酶连结(S-P)法分析海马CA1区、CA3区和齿状回(DG)Syt Ⅰ蛋白的表达.结果 甲减组大鼠血清T3、T4水平[(0.34±0.12)、(41.03±11.37)nmol/L]明显低于对照组[(0.65±0.15)、(55.20±10.68)nmol/L,P<0.01或<0.05];甲减组Syt Ⅰ免疫反应产物阳性颗粒较对照组也明显减少,尤以海马CA1、CA3区锥体细胞层、放射层及DG区颗粒细胞层减少明显,Syt Ⅰ免疫反应产物,甲减组海马CA1区多形层(0.048±0.007)、细胞层(0.299±0.035)、放射层(0.042±0.007)、腔隙分子层(0.038±0.006)和CA3区的细胞层(0.085±0.019)、放射层(0.040±0.011)、腔隙分子层(0.038±0.006)及DG区颗粒细胞层(0.076±0.019)均较对照组(0.068±0.014、0.376±0.053、0.053±0.008、0.056±0.009,0.118±0.026、0.052±0.010、0.053±0.009、0.099±0.015)明显减少(P<0.01或<0.05).甲亢组大鼠血清T3、T4水平[(1.43±0.30)、(157.18±19.95)nmol/L]明显高于对照组(P<0.01).CA1区细胞层(0.322±0.050)、放射层(0.039±0.006)、腔隙分子层(0.042±0.006)和CA3区细胞层(0.098±0.034)、放射层(0.046±0.013)、腔隙分子层(0.046±0.010)及DG区颗粒层(0.085±0.024)、分子层(0.042±0.009)Syt Ⅰ免疫反应产物也较对照组减少(P<0.05或<0.01).结论 甲状腺激素水平增高或降低均可导致成年大鼠海马内SytⅠ蛋白表达减少.     

恢复操在腹腔镜阑尾切除术后的应用

目的]探讨腹腔镜阑尾切除术后恢复操的应用效果及可行性。[方法]选择行单纯腹腔镜阑尾切除术病人178例，随机分成观察组和对照组。对照组给予常规护理，观察组在此基础上应用恢复操锻炼，比较两组病人肠蠕动恢复时间、肛门排气时间及腹胀、呼吸道感染、下肢静脉血栓形成、肩背部疼痛情况。[结果]观察组病人术后肠蠕动恢复时间、肛门排气时间较对照组提前（P＜0．01）；腹胀及肩背部疼痛情况发生率低于对照组（P＜0．01）。[结论]恢复操可以督促病人尽早开始活动，促进机体功能的恢复，减少术后并发症的发生。     

Effect of thyroid hormone level on the expression of synaptotagmin Ⅰ in adult rat hippocampus

Objective To observe the effect of different thyroid hormone level on the expression of synaptotagmin Ⅰ(Syt Ⅰ) in adult rat hippocampus. Methods All 28 adult male SD rats were assigned randomly into hypothyroid, hyperthyroid and control group, hypothyroid group was established by daily intraperitoneal injections with propylthiou raci(PTU, 10.0 mg/kg body weight) for 6 weeks and hyperthyroid group with L-Thyroxine (L-T4, 0.5 mg/kg body weight) for 3 weeks. Radioimmunity method was used to assay the levels of serum T3 and T4, immunohistochemical S-P technology to assay the levels of Syt Ⅰ protein in hippoeampus CA1, CA3 and dentate gyrus (DG). The layers analyzed in the different subfields include the polymorphic cell layer(the stratum oriens, SO), pyramidal cell layer(PCL), stratum radiatum (SR), lacunosum-molecular layer (SLM) in CA1 and CA3, granular cell layer(GL) and molecular layer(ML) in DG. Results The levels of serum T3 and T4[(0.34±0.12), (41.03± 11.37)nmol/L]in the hypothyroid rats were significantly lower than those in the control group[(0.65±0.15), (55.20±10.68)nmol/L, P < 0.01 or < 0.05], and the positive granule of Syt Ⅰ was significantly lower in PCL and SR of CA1 and CA3, GL of DG. The average optical value responsible for Syt Ⅰ immunoreactivity was obviously reduced in SO(0.048±0.007), PCL(0.299±0.035), SR(0.042±0.007), SLM(0.038±0.006) of CA1, PCL(0.085± 0.019), SR(0.040±0.011), SLM (0.038±0.006) of CA3, GL (0.076±0.019) of DG than normal controls (0.068± 0.014, 0.376±0.053, 0.053±0.008,0.056±0.009,0.118±0.026,0.052±0.010,0.053±0.009,0.099±0.015; P< 0.01 or < 0.05). Serum T3 and T4 levels [(1.43±0.30), (157.18±19.95)nmol/L]of hyperthyroid rats were significantly higher than those of control group(P < 0.01). The value was reduced in PCL(0.322±0.050), SR(0.039±0.006), SLM (0.042±0.006) of CA1, PCL(0.098±0.034), SR(0.046±0.013), SLM(0.046±0.010) of CA3 and GL(0.085± 0.024), ML (0.042±0.009) of DG (P < 0.05 or < 0.01). Conclusion Adult-onset of hypothyroidism and hyperthyroidism can reversibly decrease the expression of Syt Ⅰ in CA1, CA3 and DG regions of hippocampus.     

Effect of thyroid hormone level on the expression of synaptotagmin Ⅰ in adult rat hippocampus

Objective To observe the effect of different thyroid hormone level on the expression of synaptotagmin Ⅰ(Syt Ⅰ) in adult rat hippocampus. Methods All 28 adult male SD rats were assigned randomly into hypothyroid, hyperthyroid and control group, hypothyroid group was established by daily intraperitoneal injections with propylthiou raci(PTU, 10.0 mg/kg body weight) for 6 weeks and hyperthyroid group with L-Thyroxine (L-T4, 0.5 mg/kg body weight) for 3 weeks. Radioimmunity method was used to assay the levels of serum T3 and T4, immunohistochemical S-P technology to assay the levels of Syt Ⅰ protein in hippoeampus CA1, CA3 and dentate gyrus (DG). The layers analyzed in the different subfields include the polymorphic cell layer(the stratum oriens, SO), pyramidal cell layer(PCL), stratum radiatum (SR), lacunosum-molecular layer (SLM) in CA1 and CA3, granular cell layer(GL) and molecular layer(ML) in DG. Results The levels of serum T3 and T4[(0.34±0.12), (41.03± 11.37)nmol/L]in the hypothyroid rats were significantly lower than those in the control group[(0.65±0.15), (55.20±10.68)nmol/L, P < 0.01 or < 0.05], and the positive granule of Syt Ⅰ was significantly lower in PCL and SR of CA1 and CA3, GL of DG. The average optical value responsible for Syt Ⅰ immunoreactivity was obviously reduced in SO(0.048±0.007), PCL(0.299±0.035), SR(0.042±0.007), SLM(0.038±0.006) of CA1, PCL(0.085± 0.019), SR(0.040±0.011), SLM (0.038±0.006) of CA3, GL (0.076±0.019) of DG than normal controls (0.068± 0.014, 0.376±0.053, 0.053±0.008,0.056±0.009,0.118±0.026,0.052±0.010,0.053±0.009,0.099±0.015; P< 0.01 or < 0.05). Serum T3 and T4 levels [(1.43±0.30), (157.18±19.95)nmol/L]of hyperthyroid rats were significantly higher than those of control group(P < 0.01). The value was reduced in PCL(0.322±0.050), SR(0.039±0.006), SLM (0.042±0.006) of CA1, PCL(0.098±0.034), SR(0.046±0.013), SLM(0.046±0.010) of CA3 and GL(0.085± 0.024), ML (0.042±0.009) of DG (P < 0.05 or < 0.01). Conclusion Adult-onset of hypothyroidism and hyperthyroidism can reversibly decrease the expression of Syt Ⅰ in CA1, CA3 and DG regions of hippocampus.