首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
哮喘患儿PBMC中β_2AR和IL-12基因mRNA表达及相互关系   总被引:1,自引:0,他引:1  
目的探讨β2受体(β2AR)和IL-12基因mRNA表达与儿童哮喘的相关性,白三烯受体(CysLT1-Receptor)基因表达水平与IL-12、β2AR基因表达的关系,以及儿童哮喘发作程度与β2AR和IL-12基因表达的关系。方法提取哮喘儿童外周血白细胞,调取相关基因,对电泳结果通过电泳凝胶定位成像仪成像,应用1D-凝胶分析软件进行半定量分析。结果哮喘组患儿白细胞IL-12、β2AR表达明显低于正常组(P<0.01)。哮喘发作时IL-12基因表达与β2AR基因表达呈正相关(r=0.34,P=0.001),与CysLT1-Receptor基因表达呈负相关(r=-0.92,P=0.001);β2AR与CysLT1-Receptor呈负相关(r=-0.85,P=0.003)。IL-12基因表达与哮喘发作程度无关(P=0.16);β2AR基因的表达与哮喘发作程度呈负相关(P=0.003)。结论IL-12、β2AR和CysLT1-Receptor基因在哮喘儿童外周血单个核细胞(PBMC)中的表达存在相关性。IL-12基因表达与哮喘的发作程度无关,β2AR基因表达与哮喘的发作程度呈负相关。  相似文献   

2.
目的研究半胱氨酰白三烯受体1(CysLT1)在支气管哮喘(哮喘)大鼠肺组织中的表达,探讨炎性因子IFN-γ是否参与调节哮喘大鼠肺组织CysLT1的表达。方法以卵清蛋白致敏激发制作大鼠哮喘模型,然后测定不同质量浓度组胺时大鼠呼吸道压力,再取其肺组织,采用免疫组织化学法、反转录-聚合酶链反应法检测IFN-γ干预前后哮喘大鼠肺组织中CysLT1 mRNA的表达。结果当各实验组大鼠吸入组胺质量浓度为0 mg·L-1、10 mg·L-1和20 mg·L-1时,测得呼吸道阻力值,任意2组比较差异均有统计学意义(Pa<0.01);免疫组织化学(IHC)法检测正常对照组(N组)、哮喘模型组(A组)、哮喘鼠雾化吸入低剂量IFN-γ干预组(L组)及高剂量干预组(H组)的CysLTl阳性细胞表达计数分别为11.889±2.369、19.333±3.240、26.000±5.522、33.222±4.493,任意2组比较差异均有统计学意义(Pa<0.01);RT-PCR法检测N组、A组、L组及H组的CysLT1 mRNA/β-actin相对密度分别为0.218±0.050、0.323±0.084、0.447±0.083、0.670±0.108,任意2组比较差异均有统计学意义(Pa<0.01)。结论高、低剂量IFN-γ均能上调CysLT1在哮喘大鼠肺组织的表达,其中炎性因子IFN-γ可能通过上调CysLT1的表达水平而参与哮喘的发生发展。  相似文献   

3.
目的:探讨哮喘儿童半胱氨酰白三烯合成与分泌水平与吸入糖皮质激素(ICS)疗效个体差异的相关性。方法:32例5~12岁已规律使用ICS 6个月以上非急性发作期哮喘儿童,按病情控制程度分为ICS控制良好组(14例)与ICS控制不良组(18例),取10例健康儿童作为对照组,比较3组儿童外周血多形核白细胞(PMNL)白三烯C4合成酶(LTC4S )mRNA表达与尿白三烯E4(LTE4)分泌水平。LTC4S mRNA表达水平以qCt值表示,qCt值与基因表达水平呈负相关。结果:哮喘儿童组PMNL LTC4S mRNA 表达(qCt值:1.12±0.27)明显高于对照组(qCt值:1.42±0.12),P<0.05。ICS控制不良组PMNL LTC4S mRNA表达水平最高(qCt值:1.03±0.17),与ICS控制良好组(qCt值:1.24±0.33)和健康对照组(qCt值:1.42±0.12)比较差异均有显著性意义(分别P<0.05和P<0.01)。3组间尿LTE4比较差异无显著性意义。结论:哮喘儿童外周血LTC4S mRNA表达水平增高,且规范使用ICS控制不良患儿显著高于ICS控制良好患儿,提示体内白三烯水平增高可能与ICS控制不良有关。[中国当代儿科杂志,2009,11(6):441-444]  相似文献   

4.
目的 研究白三烯受体(CysLT1)中927T/C(rs320995)位点基因多态性在温州地区汉族儿童中的分布特征及其对哮喘临床特征的影响.方法 采用DNA测序法检测122例汉族哮喘患儿(哮喘组)和100例汉族健康体检儿童(健康对照组)CysLT1 927T/C位点的基因多态性;采用MS/Paedtric 肺功能仪检测肺功能.结果 1.二组均存在927T/C位点基因多态性,哮喘组CC、CT和TT基因型频率分别为33.6%、18.9%和47.5%,健康对照组分别为19.0%、17.0%、63.0%,二组基因型频率分布比较差异有统计学意义(χ2=6.769,P=0.034);哮喘组男童基因型与健康对照组比较差异有统计学意义(χ2=17.776,P=0.000),哮喘组女童基因型与健康对照组比较差异亦有统计学意义(χ2=9.676,P=0.008).2.哮喘组C、T等位基因分别为43.0%和57.0%,健康对照组分别为28.0%和72.0%,二组比较差异有统计学意义(χ2=10.747,P=0.001).哮喘组男童等位基因与健康对照组比较差异有统计学意义(χ2=16.396,P=0.000),哮喘组女童等位基因与健康对照组比较,差异无统计学意义(χ2=0.015,P=0.902).3.哮喘组中,927T/C位点3种基因型特应性体质、家族特应性及哮喘严重程度比较,差异均无统计学意义.结论 1.温州地区汉族儿童CysLT1基因927T/C位点基因多态性与温州地区汉族人群哮喘易感性相关,且在性别上无明显差异.2.该位点C等位基因的男童携带者患哮喘的危险性为T等位基因携带者的2.755倍,但哮喘患病率与C等位基因的女性携带者无明显相关.3.温州地区汉族儿童中CysLT1基因927T/C位点基因多态性与特应性体质、家族特应性及哮喘严重程度无明显相关.  相似文献   

5.
目的探讨基质金属蛋白酶-9(MMP-9)及其组织抑制物(TIMP-1)在支气管哮喘发病中的作用,评价白三烯受体拮抗剂对其的调节作用。方法应用ELISA、免疫组织化学、Western-blot及RT-PCR技术对白三烯受体拮抗剂治疗前后大鼠肺组织中MMP-9及TIMP-1表达进行研究。结果①大鼠肺组织MMP-9mRNA表达:哮喘7d组为(2.74±0.41),21d组为(1.69±0.25),白三烯受体拮抗剂治疗组为(0.91±0.20),正常对照组为(0.64±0.13),组间比较差异有统计学意义(F=123.42,P<0.01)。大鼠肺组织TIMP-1mRNA表达:哮喘7d组为(1.53±0.21),21d组为(1.98±0.28),白三烯受体拮抗剂治疗组(1.03±0.17),正常对照组(0.71±0.10),组间比较差异有统计学意义(F=65.59,P<0.01)。②RT-PCR结果与Westernblot结果一致。结论从蛋白质水平及分子水平显示哮喘大鼠模型肺组织MMP-9表达升高,TIMP-1表达亦增强;白三烯受体拮抗剂可能通过下调MMP-9及TIMP-1表达来抑制气道炎症和气道重塑。  相似文献   

6.
目的观察白三烯受体拮抗剂对哮喘模型肺组织TIMP-1表达的影响,提供哮喘防治新途径的可靠实验依据。方法雄性健康豚鼠108只随机分为3组,以卵蛋白(OVA)致敏和激发建立哮喘模型,给予白三烯受体拮抗剂扎鲁司特(Zafirlukast)治疗。肺组织切片免疫组化标记TIMP-1,图像分析TIMP-1表达水平,光镜观察病理学变化。结果OVA激发后8周,治疗组肺组织中TIMP-1标记阳性细胞明显多于哮喘组和对照组(P<0.05),分别为17.55±7.08,10.20±2.80及7.57±3.39;激发后12周两两比较差异均有显著性,治疗组TIMP-1标记阳性细胞明显多于哮喘组,后者TIMP-1表达水平明显高于对照组(P<0.05)。激发后8周始,治疗组气道炎症、上皮细胞增生和胶原沉积等病理学变化较哮喘组明显减轻。结论白三烯受体拮抗剂可使哮喘豚鼠肺组织TIMP-1表达水平增加,在延缓哮喘气道重塑发生过程中起重要作用。  相似文献   

7.
目的了解支气管哮喘患儿外周血中性粒细胞(PMN)功能状况及其与哮喘病情的关系。方法对2005—2008年广西医科大学第一附属医院收治的67例临床确诊为支气管哮喘的患儿和作为健康对照组的16名儿童进行哮喘症状评分、肺功能检查,将哮喘组分为轻-中度哮喘组(MA)和重度哮喘组(SA)。所有研究对象抽取静脉血分离外周血中性粒细胞,体外培养12h,收集培养上清液。采用荧光标记流式细胞仪检测中性粒细胞活化率及中性粒细胞吞噬功能,比色法检测中性粒细胞弹性蛋白酶(NE)活性,还原比色法检测上清液一氧化氮(NO)水平,酶联免疫吸附实验(ELISA)法测定上清白细胞介素-8(IL-8)水平。比较对照组与哮喘组以及轻-中度哮喘组与重度哮喘组反映中性粒细胞功能各指标的差异;比较哮喘急性发作期与缓解期外周血中性粒细胞功能各指标的差异。结果 (1)与对照组比较,哮喘组PMN活化率及PMN噬菌率高于对照组,差异有统计学意义(P0.01);哮喘组上清液NE、NO、IL-8高于对照组,差异有统计学意义(P0.01)。(2)重度哮喘组PMN活化率高于轻-中度哮喘组,PMN噬菌率低于轻-中度哮喘组,差异有统计学意义(P0.01),上清NE、NO、IL-8高于轻-中度哮喘组,差异有统计学意义(P0.01)。(3)急性发作期PMN活化率、上清液NE、NO、IL-8与缓解期比较差异无统计学意义(P0.05),急性发作期患儿PMN噬菌率高于缓解期,差异有统计学意义(P0.01)。结论哮喘患儿外周血存在中性粒细胞活化的证据,表现为吞噬、趋化、释放功能的改变。哮喘患儿外周血中性粒细胞活化与哮喘的病情程度有关,外周血中性粒细胞活化相关指标可用于判断哮喘病情。布地奈德吸入治疗对哮喘患儿外周血中性粒细胞功能可能无明显影响。  相似文献   

8.
Tan WP  Mai XD  Wu BQ  Li XY  Li J  Wei J  Huang HR  Huang SL 《中华儿科杂志》2007,45(4):284-287
目的研究转录因子T—bet/GATA-3在小儿哮喘发病以及杀伤性T淋巴细胞Te1/Te2失衡中的作用。方法通过半定量RT-PCR检测38例哮喘患儿(哮喘发作组20例,缓解组18例)及20例正常对照组儿童外周血单个核细胞(PBMC)中T—bet、GATA-3mRNA表达情况,同时采用三色荧光流式细胞仪检测哮喘患儿的Te1、Tc2细胞数量,并对T-bet、GATA-3 mRNA表达水平与Te1、Te2细胞比率进行相关分析,了解T—bet/GATA-3对哮喘患儿的Tc细胞分化的调节作用。结果(1)哮喘患儿外周血淋巴细胞转录因子T—bet mRNA表达水平低于正常对照组(0.28±0.03),其中哮喘发作组(0.14±0.04)显著低于哮喘缓解组(0.21±0.03)(P〈0.05);转录因子GATA-3mRNA表达水平高于正常对照组(0.37±0.04),其中哮喘发作组(0.49±0.09)高于哮喘缓解组(0.44±0.08)(P〈0.05)。(2)哮喘患儿外周血淋巴细胞亚群Te1百分率低于正常对照组(31.2±3.8),其中哮喘发作组(6.6±2.4)又低于哮喘缓解组(14.2±4.3)(P〈0.05);Tc2细胞百分率高于正常对照组(3.5±1.1),其中哮喘发作组(10.0±4.2)又高于哮喘缓解组(5.4±2.2)(P〈0.05)。(3)哮喘患儿T-bet mRNA表达量与Tc1细胞比率呈正相关(r=0.704),与Tc2细胞比率呈负相关(r=-0.629);GATA-3mRNA表达量与Tc1细胞比率呈负相关(r=-0.612),与Tc2细胞比率呈正相关(r=0.673);T-bet/GATA-3mRNA比值与Tel细胞比率呈正相关(r=0.731),与Te2细胞比率呈负相关(r=-0.642),与Te1/Te2比值呈正相关(r=0.773)。结论哮喘患儿T—bet/GATA-3mRNA表达水平失调,与哮喘患儿的T细胞呈现Te2优势分化密切相关。  相似文献   

9.
不同潮气量通气启动新生鼠肺纤维化的特点   总被引:3,自引:0,他引:3       下载免费PDF全文
目的:探讨不同潮气量机械通气后新生大鼠肺胶原合成的变化及其机制。方法:24只新生Sprague-Dawley大鼠随机分为对照组、常规通气组(潮气量10 mL/kg)及过度通气组(潮气量25 mL/kg),每组8只。机械通气5 h后处死,取肺组织,左肺行肺组织病理损伤评分,以免疫组织化学方法观察结缔组织生长因子(CTGF)表达。PCR法检测右肺组织Ⅲ型前胶原蛋白mRNA(PcolⅢ mRNA)、半胱氨酰白三烯mRNA(CysLT1 mRNA)及CTGF mRNA水平。结果:肺损伤程度和纤维化程度随着潮气量增加而增加(P<0.05)。与对照组比较,过度通气组肺组织CTGF mRNA水平显著性增高(P<0.05)。肺组织PcolⅢ mRNA 和 CysLT1 mRNA水平随潮气量增加而增加,各组间差异有统计学意义(P<0.05)。肺组织中PcolⅢ mRNA表达与肺组织病理损伤程度呈正相关关系(r=0.78,P<0.01);CTGF、CysLT均和PcolⅢ呈正相关关系(r=0.59,0.86,P<0.01)。结论:不同潮气量机械通气导致不同程度肺损伤,并启动肺纤维化。肺纤维化程度与肺损伤程度一致。肺纤维化的启动与CysLT作用和CTGF激活有关。[中国当代儿科杂志,2010,12(10):799-803]  相似文献   

10.
目的 探讨哮喘患儿尿中白三烯水平与哮喘的关系及应用白三烯受体拮抗剂孟鲁司特的影响.方法 选择2007年5月至12月在我院小儿呼吸内科及PICU住院的哮喘急性发作患儿32例,随机分为:(1)病例治疗组16例,接受常规治疗及孟鲁司特治疗;(2)病例对照组16例,接受常规治疗但未接受孟鲁司特治疗.另纳人健康体检儿10例为健康对照组.哮喘患儿于治疗前的急性发作期及治疗后的症状缓解期(哮喘症状消失、肺部听诊啰音消失24 h后)分别留取尿液2ml;健康对照组也于体检时留取尿液2ml.尿液中的白三烯E4(LTE4)采用酶联免疫法检测.结果 (1)哮喘患儿急性发作期尿中LTE4水平均高于症状缓解期,差异有非常显著性(P<0.01);(2)健康对照组、哮喘症状缓解期的病例治疗组、哮喘症状缓解期的病例对照组尿中LTE4水平分别为(94.25±33.61)ng/L、(131.37±43.03)ng/L、(179.97±53.51)ng/L,,差异有非常显著性(P<0.01);(3)病例治疗组在治疗后尿中LTE4水平下降值为(205.78±61.07)ng/L;病例对照组下降值为(135.29±41.99)ng/L,差异有非常显著性(P<0.01).结论 儿童哮喘急性发作时尿中白三烯水平显著增高,哮喘症状缓解时,白三烯水平随之降低,但仍高于健康儿童;白三烯受体拮抗剂能降低白三烯水平,有助于控制哮喘发作.  相似文献   

11.
There is a common progression known as the allergic march from atopic dermatitis to allergic asthma. Cetirizine has several antiallergic properties that suggest a potential effect on the development of airway inflammation and asthma in infants with atopic dermatitis. Methods. Over a two year period, 817 infants aged one to two years who suffered from atopic dermatitis and with a history of atopic disease in a parent or sibling were included in the ETAC® (Early Treatment of the Atopic Child) trial, a multi-country, double-blind, randomised, placebo-controlled trial. The infants were treated for 18 months with either cetirizine (0.25mg/ kg b.i.d.) or placebo. The number of infants who developed asthma was compared between the two groups. Clinical and biological assessments including analysis of total and specific IgE antibodies were performed. Results. In the placebo group, the relative risk (RR) for developing asthma was elevated in patients with a raised level of total IgE (≥ 30 kU/I) or specific IgE (≥ 0.35 kUA/I) for grass pollen, house dust mite or cat dander (RR between 1.4 and 1.7). Compared to placebo, cetirizine significantly reduced the incidence of asthma for patients sensitised to grass pollen (RR = 0.5) or to house dust mite (RR = 0.6). However, in the population that included all infants with normal and elevated total or specific IgE (intention-to-treat - ITT), there was no difference between the numbers of infants developing asthma while receiving cetirizine or placebo. The adverse events profile was similar in the two treatment groups. Discussion. Raised total IgE level and raised specific IgE levels to grass pollen, house dust mite or cat dander were predictive of subsequent asthma. Cetirizine halved the number of patients developing asthma in the subgroups sensitised to grass pollen or house dust mite (i.e. 20% of the study population). In view of the proven safety of the drug, we propose this treatment as a primary pharmacological intervention strategy to prevent the development of asthma in specifically sensitised infants with atopic dermatitis.  相似文献   

12.
OBJECTIVE: To ascertain the profile of cases of measles seen at a general hospital during a recent outbreak that occurred despite a measles vaccination program. METHODOLOGY: A retrospective study from January 1991 to March 1998. All patients with measles (ICD code 055. 9) seen at the emergency unit or as inpatients were included. RESULTS: There were 87 cases identified. The diagnosis was clinical in all and proven serologically in 71%. Eighty-five per cent of the cases occurred between January 1997 and March 1998. There was a bi-modal age distribution with peaks in the very young (相似文献   

13.
孤独症谱系障碍(autistic-spectrum disorders,ASDs)近年来患病率逐年攀升至1%左右,其症状往往伴随终生,成为严重威胁儿童健康和发展的神经发育性疾患;注意缺陷多动障碍(attention deficit hyperactivity disorder,ADHD)是儿童期最常见的精神障碍,国内报道患病率为4.13%~5.83%,其症状可延续至青少年期,甚至到成年期[1]。这两类精神障碍在成年期的临床表现、共患病、治疗策略和预后与儿童期有哪些不同呢?本文通过回顾相  相似文献   

14.
During the past several decades, our understanding of the complex pathophysiology of vasoocclusion associated with sickle cell disease has improved greatly. Interaction of genes, hemoglobin molecules, red cell membrane and metabolic changes, cell-cell interactions and cell-plasma interactions, red cell adhesion to vascular endothelium, activation of coagulation, and vascular reactivity play a role in vaso occlusion. Penicillin prophylaxis of pneumococcal infections and appropriate use of blood transfusions and other supportive measures improved survival of sickle cell patients. Hydroxyurea made a major impact on sickle cell therapy when it was shown to decrease acute painful episodes, acute chest syndrome, and the need for blood transfusion in adults. Significant experience in the use of hydroxyurea has been accumulated in older children. The benefits and risks of hydroxyurea for younger children and long-term risks in all patients will be evaluated in future investigations. Other promising therapies include butyrate compounds, clotrimazole, magnesium supplementation, poloxamer 188, antiadhesion agents, anticoagulant approaches, and nitric oxide. Hemopoietic transplantation remains the only curative therapy. However, several transgenic mouse models are available for studies of gene therapy or other treatment approaches on biochemical, cellular, and pathologic effects of mutant genes.  相似文献   

15.
A 21-year-old man with granular lymphocyte-proliferative disorders (GLPD) associated with chronic active Epstein-Barr virus (EBV) infection is described. Chromosomal analyses revealed several clonal abnormalities and two of them were mainly repetitious. High copy numbers of monoclonal EBV genome were also detected in the proliferative large granular lymphocytes (LGLs), indicating the monoclonal expansion of EBV-infected LGLs. The patient had an indolent course for several years, and there was no evidence of infiltrations of his bone marrow until the end stage. At autopsy, microscopic studies revealed marked infiltrations of LGL in the liver and spleen, and the infiltrating cells were NK-cell immunophenotype. The infiltrated LGLs showed latency I.  相似文献   

16.
Human male sexual development is regulated by chorionic gonadotropin (CG) and luteinizing hormone (LH). Aberrant sexual development caused by both activating and inactivating mutations of the human luteinizing hormone receptor (LHR) have been described. All known activating mutations of the LHR are missense mutations caused by single base substitution. The most common activating mutation is the replacement of Asp-578 by Gly due to the substitution of A by G at nucleotide position 1733. All activating mutations are present in exon 11 which encodes the transmembrane domain of the receptor. Constitutive activity of the LHR causes LH releasing hormone-independent precocious puberty in boys and the autosomal dominant disorder familial male-limited precocious puberty (FMPP). Both germline and somatic activating mutations of the LHR have been found in patients with testicular tumors. Activating mutations have no effect on females. The molecular genetics of the inactivating mutations of the LHR are more variable and include single base substitution, partial gene deletion, and insertion. These mutations are not localized and are present in both the extracellular and transmembrane domain of the receptor. Inactivation of the LHR gives rise to the autosomal recessive disorder Leydig cell hypoplasia (LCH) and male hypogonadism or male pseudohermaphroditism. Severity of the clinical phenotype in LCH patients correlates with the amount of residual activity of the mutated receptor. Females are less affected by inactivating mutation of the LHR. Symptoms caused by homozygous inactivating mutation of the LHR include polycystic ovaries and primary amenorrhea.  相似文献   

17.
18.
This report describes the cross-sectional analyses of data from the first year of a longitudinal study using questionnaire and respiratory function data over a 5 year period from a sample of rural South Australian school children. The cumulative or lifetime prevalences of respiratory symptoms were estimated in 825 rural and 1261 urban school children aged between 5 and 15 years in order to determine if the prevalence rates differed between rural and urban school children. The study found the overall cumulative prevalence of asthma and/or wheezy breathing (AWB) to be 24.1% in the rural school children compared to 27.6% in the urban school children. Most children developed AWB symptoms before the age of 7 years, with 20% reporting moderately severe symptoms and 10% having more than one attack per fortnight. The cumulative prevalence of bronchitis, loose/rattly cough (BLRC) differed significantly between the rural school children (34.1%) and urban school children (47.9%). The BLRC symptoms preceded the development of AWB in many cases. Urban school children also reported a higher prevalence of atopic conditions.  相似文献   

19.
The aim of the study was to explore psychological factors and autonomic activity in children with recurrent abdominal pain and to compare them with those in a control group of healthy children. The Personality Inventory for Children was used for assessment of developmental, emotional and psychosocial factors in 25 children with recurrent abdominal pain (age, 7-15 y). Parasympathetic and sympathetic functions in these children and in 23 healthy control subjects (age, 7-13 y) were also investigated, non-invasively using a computerized polygraph. Vagal tone (parasympathetic function) was indexed by calculation of respiratory sinus arrhythmia in beats/min. Skin conductance (sympathetic function) was recorded by the constant current method. On the Personality Inventory for Children, 16 patients had high scores on somatic concern. Several patients had scores in the clinical range for depression, withdrawal and anxiety, but the mean scores for these personality profile scales were well within the normal range of healthy children. Interestingly, there was a spike on the L (Lie)-scale for most of the patients and 15 patients had scores above or close to the clinical cut-off value. As compared with the scores in healthy children, vagal tone and sympathetic tone were normal. Conclusion: Many children with recurrent abdominal pain have scores in the clinical range for depression, withdrawal, anxiety and L-scale indicating coping problems, denial and a trend towards somatic concern that may contribute to the evolution of abdominal pain. Autonomic nerve activity was not disturbed in these children.  相似文献   

20.
Summary In two groups of infants (3–53 weeks old) skin temperatures were controlled in different areas of the trunk—i.e.: regions of sternum, lungs, heart, liver, spleen, kidneys—at different room-temperatures (group I: 21–25°C; group II: 29–32°C). Rectal temperatures of some probands in both groups also had been controlled simultaneously. A definite change in the reaction to heat was proofed in different periods of the first year of life. In higher environmental temperatures the skin temperature was almost constant at every controll-point of the skin, even in older infants. In lower environmental temperatures the skin temperatures lowered continuously with age till 7. to 9. moth. From 10. to 12. month the lowering of skin temperature discontinued. The rectal temperatures were relatively constant in all infants. Only in infants from 7. to 12. month, whose skin temperatures were controlled in lower as well as in higher environmental temperatures, a tendency to higher rectal temperatures was proofed in warmer environmental temperatures.The significance of these results is discussed.

Untersuchungen mit Unterstützung durch die Deutsche Forschungsgemeinschaft.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号