女性SLE血清性激素及胰岛素样生长因子-1的研究

目的：探讨性激素和胰岛素样生长因子－１（ＩＧＦ－１）在ＳＬＥ发病中的作用。方法．：采用放射免疫法检测２０例女性ＳＬＥ血清酮（Ｔ）、游离睾酮（ＦＴ）、二氢睾酮（ＤＨＴ）、脱氢表雄酮（ＤＨＥＡ）、雌二醇（Ｅ２）、孕酮（Ｐｒ、）泌乳素（ＰＲＬ）和ＩＧＦ－１水平。结果：ＳＬＥ口才血清Ｔ、ＦＴ、ＤＨＴ、ＤＨＥＡ、Ｐｒ明显低于正常ＰＲＬ、ＩＧＦ－１明显高于正常对照,Ｅ２无差异;性激素及ＩＧＦ－１水平与疾病活动     

青春期后女性痤疮患者血清性激素水平的研究

目的：检测青春期后女性痤疮患者体内性激素的水平。方法：采用放射免疫法对25岁以上的34例女性痤疮患者血清睾酮（T）、雌二醇（E2）、泌尿素（PRL）、黄体生成素（LH）和卵泡刺激素（FSH）进行了测定,并以32例正常女性作为对照。结果：患者组T显著高于对照组（P＜0．001）;E2和LH显著低于对照组（P＜0．001）;PRL和FSH无明显变化（P＞0．05）。结论：性激素异常可能是女性痤疮迟发和持久不退的主要原因。     

迟发性或持久性女性痤疮患者血清性激素水平的研究

目的 探讨迟发性或持久性女性痤疮患者体内性激素的改变。方法 采用放射免疫分析法,对２５岁以后发病或病程超过５年的３２例女性痤疮患者黄体期血清中８种性激素进行了测定,并以３０例正常女性徐为对照。结果 患者组睾酮、雌烯二酮、硫酸脱氢表雄酮均显著高于对照组（Ｐ〈０．００１）;雌二醇、孕酮、泌乳素、卵泡刺激素和黄体生成素无明显变化（Ｐ〉０．０５）。结论 生激素升高可能是女性疮疮迟发和持久不愈的主要原因。     

高强度训练官兵血中胰岛素样生长因子-1变化及临床意义

目的了解高强度训练对受训人员血中胰岛素样生长因子-1的影响。方法于训练中期随机抽取阅兵集训（高强度训练）的30名官兵及相似的30名普通训练的官兵．抽血离心,取血清,测定血清中胰岛素样生长因子-1、细胞间黏附因子-1、去甲肾上腺素及超敏C反应蛋白的浓度。结果阅兵组训练组的胰岛素样生长因子-1浓度为（5．895±2．012）μg/L,明湿高于普通训练组[（4．471±2．268）μg／L,P〈0．05],阅兵组的去甲肾上腺素浓度为Ⅰ（173．320±101．156）pmol／L,明显高于普通训练组[（46．422±27．785）pmol／L,P〈0．05],阅兵组的细胞间黏附因子-1的浓度为[（4．780±1．301）μg／L,明显高于普通训练组[（2．842±0．630）μg／L,P〈0．05],而阅兵组的超敏C反应蛋白[（1．235±2．252）mg／L]同普通训练组[（1．482±2．000）mg／L]间未见明显差异（P〉0．05）。结论高强度训练组血中胰岛素样生长因子-1明显高于普通训练组,这表明高强度训练中存在骨骼肌损伤和修复。     

中药痤疮饮性激素样活性的实验研究

为观察中药痤疮饮是否具有性激素样活性，我们开展了2个实验。实验1，即先给雄性去睾大鼠痤疮饮、睾酮并设对照组，然后取其精囊腺及前列腺称重；实验2，先给雌性小鼠不同剂量的痤疮饮、雌二醇并设对照组，然后取其子宫称重。实验1显示单给睾酮组大鼠精囊腺和前列腺重量明显高于其它3组；实验2，痤疮饮组子宫重量明显高于对照组，但显著低于雌二醇组。痤疮饮既有抗雄激素活性，又有温和的雌激素样活性。     

银屑病患儿血清生长激素、胰岛素样生长因子-1的检测

为了解生长激素(GH)、胰岛素样生长因子(IGF)-1与儿童银屑病发病的关系,笔者对寻常性银屑病患儿血清GH基础值及IGF-1的水平进行了检测。1资料和方法1.1临床资料52例银屑病患儿均来自2002年8月—2003年8月本院皮肤科门诊。正常对照组42例均为同期我院保健门诊正常体检的健康儿童,年龄、性别与银屑病患儿相匹配。1.2方法用放射免疫分析法,按使用说明书分别测定银屑病患儿及正常对照组儿童血清GH、IGF-1水平。2结果寻常性银屑病患儿血清GH基础值及IGF-1水平均高于正常对照组,差异有统计学意义(t=-4.17,P<0.01;t=3.554,P<0.01),进行期…     

女性迟发性痤疮血清性激素及皮质醇水平的研究

目的：探讨女性迟发性痤疮患者体内性激素和皮质醇水平的改变与临床的关系。方法：采用放射免疫分析法，对31例女性迟发性痤疮患者黄体期血清中6种性激素及皮质醇水平进行了测定，并以37例女性青春期痤疮，不同年龄组的46例正常女性作为对照观察。结果：研究组孕酮显著高于青春期痤疮组(P＜0．05)；雄激素、睾酮显著高于正常对照组(P＜0．01)；而皮质醇水平较正常人对照组明显升高(P＜0．05)。结论：女性迟发性痤疮的发生及加重可能与雄激素升高及皮质醇水平异常有关。     

胰岛素样生长因子1对重症急性胰腺炎大鼠肺损伤的影响

目的 探讨胰岛素样生长因子1(IGF-1)对重症急性胰腺炎(SAP)大鼠肺损伤的影响及可能机制.方法 Wistar大鼠72只随机分为对照组、SAP组、IGF-1组,每组24只.大鼠SAP模型采用5%的牛磺胆酸钠自胆胰管注入建立,三组在建模后6h、12h、24h 各取8 只测定血清淀粉酶、内毒素、二胺氧化酶、TNF-α、IL-1β、肺损伤病理评分,光镜观察肺组织病理变化.结果 SAP组血清淀粉酶、内毒素、二胺氧化酶、TNF-α、IL-1β、肺损伤病理评分较对照组升高;经IGF-1干预后,上述各项指标较SAP组均有下降.结论 IGF-1可通过改善肠粘膜屏障、降低血液内毒素水平、减少内毒素诱导的炎性介质产生从而减轻SAP肺损伤.     

女性寻常痤疮患者甲状腺激素与性激素的测定及其相互关系的研究

目的：了解女性痤疮患者甲状腺功能的状况及性激素与甲状腺激素的关系。方法：采用放射免疫分析方法,对54例女性座疮患者和30例正常对照者血清中甲状腺激素及8项性激素进行测定。结果：所有痤疮患者及正常对照者血清T3、T4、TSH水平均在所用试剂盒所列正常范围内。但通过患者组与对照组比较发现,患者组T4水平高于正常对照组,差异有高度显著性（P＜0．01）,而T3及TSH无明显变化;相关分析结果表明,T4与各项性激素间均无明显相关（P＞0．05）。结论：与正常对照组相比,女性痤疮患者血清T4水平存在有整体差别;在痤疮的发病中,甲状腺激素可能是在毛囊水平发挥作用。     

胰岛素样生长因子1干预银屑病发病机制的研究进展

胰岛素样生长因子(IGF)-1由肝脏生成,广泛存在于血液之中,其在银屑病患者血液中高表达,与丝氨酸-苏氨酸蛋白激酶(Akt)和雷帕霉素靶蛋白(rmTOR)受体结合后,通过自分泌、旁分泌及内分泌途径,作用于靶器官,干扰细胞正常代谢过程,参与银屑病的发生和发展.近年来,IGF-1参与银屑病的发病机制研究成为一大热点,该文就...     

妊娠期痤疮患者雄激素和垂体激素水平研究

目的:探讨妊娠期痤疮患者体内性激素水平的改变。方法:采用化学发光酶免疫分析法测定50例妊娠患者血清中的黄体生成素(LH)、卵泡刺激素(FSH)和睾酮(T)的水平,并以50例正常孕妇做对照。结果:患者组LH和FSH显著高于对照组(P<0.05),T略高于对照组,差异无显著性(P>0.05)。结论:在妊娠期痤疮患者中雄激素水平不是发病的决定性因素。     

伴多囊卵巢综合征的痤疮性激素水平变化及相关分析

为探讨成年女性痤疮患者血清性激素水平的变化及与多囊卵巢综合征（PCOS）的相关性，对60例成年女性痤疮患者进行血清性激素水平测定和妇科B超检查，其中24例伴PCOS痤疮患者行腹腔镜下微波治疗。结果发现患者组血清睾酮（T），黄体生成素（LH）高于对照组（P＜0．05），微波术后其T，LH值明显下降（P＜0．05），该手术对痤疮治愈率和总有效率分别为58．3％和91．7％，提示成年女性痊痤疮与PCOS有相关性，高雄激素血症可能是引起女性痤疮的主要因素之一。     

女性SLE患者血清性激素水平研究

为了探讨性激素在ＳＬＥ发病中的作用,我们采用放射免疫法检测了２０例女性ＳＬＥ患者血清睾酮（Ｔ）、游离睾酮（ＦＴ）、二氢睾酮（ＤＨＴ）、脱氢表雄酮（ＤＨＥＡ）、雌二醇（Ｅ２）、孕酮（Ｐｒ）和泌乳素（ＰＲＬ）水平。结果发现患者血清Ｔ、ＦＴ、ＤＨＴ、ＤＨＥＡ、Ｐｒ明显低于正常对照,ＰＲＬ明显高于正常对照（Ｐ〈０．０５）,Ｅ２无显著差异（Ｐ〉０．０５）;未使用皮质类固醇治疗的患者血清雄激素水平也显著降低（     

Expression of insulin-like growth factor-1 receptor, p-AKT and p-ERK1/2 protein in extramammary Paget's disease

BACKGROUND: The insulin-like growth factor-1 (IGF-1) receptor (R)-induced phosphatidylinositol 3-kinase (PI3K)/AKT and mitogen-activated protein kinase (MAPK)/ERK signal transduction cascade, which have critical roles in prevention of apoptosis and regulation of cell cycle progression, plays an important role in tumorigenesis. The expression of IGF-1R, AKT and ERK1/2 has been described in some human malignancies, but not in extramammary Paget's disease (EMPD). OBJECTIVES: To study the expression of IGF-1R, p-AKT and p-ERK1/2 in EMPD and to evaluate the relationships among them. METHODS: Thirty-six tissue samples of 34 patients with primary EMPD were subjected to immunohistochemical staining for IGF-1R, p-AKT and p-ERK1/2. RESULTS: Of thirty-six EMPD tissue samples, 34, 34 and 28 were positive for IGF-IR, p-AKT and p-ERK1/2 expression, respectively; 27, 23 and 17 of the 36 specimens stained positive for IGF-IR, p-AKT and p-ERK1/2 in more than half of Paget's cells, respectively. There were significant correlations between the IGF-1R and p-AKT expression as well as between IGF-1R and p-ERK1/2 expression. Taken together, these results indicate that IGF-1R is overexpressed, and AKT and ERK1/2 are frequently phosphorylated in EMPD. CONCLUSIONS: Our study shows that the expression of IGF-1R and the induction of p-AKT and the p-ERK1/2 pathway may play an important role in the pathogenesis of EMPD. The IGF-IR system might be a potential therapeutic target in EMPD.     

524例青春期后女性痤疮患者的性激素和血脂分析

目的: 检测青春期后女性痤疮患者血脂和性激素水平变化情况,探讨痤疮与性激素和血脂的关系.方法: 收集青春期后女性寻常痤疮患者和健康对照者,检测BMI、甘油三酯、高密度脂蛋白、垂体泌乳素、促卵泡生成素、促黄体生成素、睾酮和硫酸脱氢表雄酮水平和盆腔超声.结果: 共纳入524例青春期后女性痤疮患者(轻、中、重度痤疮分别为23...     

Elevated Serum Insulin-like Growth Factor-1 (IGF-1) Levels in Women with Postadolescent Acne

The purpose of this study was to measure the serum levels of IGF-1 in women with postadolescent acne compared to normal controls, and evaluate the relationship of these levels to the levels of androgens, in order to investigate the possible role of IGF-1 in the pathogenesis of acne. Eighty-two female patients with acne between 20 and 25 years of age and thirty-one age-matched control women were studied. We measured the serum levels of total testosterone (T), free testosterone (FT), dihydrotestosterone (DHT), dehydroepiandrosterone sulfate (DHEA-S), and insulin-like growth factor-1 (IGF-1). The levels of IGF-1 in patients with acne (1.26 ± 0.52 U/ml) were significantly (p<0.001) increased over those of controls (0.96 ± 0.32 U/ml). Of 82 acne patients, six (7%) had IGF-1 levels which exceeded the normal range, but there were no significant correlations between IGF-1 and T, FT, DHT or DHEA-S levels or between IGF-1 and acne severity. Since the measurement of serum IGF-1 levels is a convenient indicator of GH secretion, the increase of serum IGF-1 levels seen in some acne patients might reflect an increase of GH.     

Maintenance of human skin in organ culture: role for insulin-like growth factor-1 receptor and epidermal growth factor receptor

Recent studies have shown that adult skin incubated in low-Ca2+ (0.15 mM) medium rapidly degenerates but that normal architecture is maintained when the tissue is incubated in high-Ca2+ medium (1.4 mM Ca2+). To investigate whether the skin cell-produced growth factors insulin-like growth factor-1 (IGF-1) and epidermal growth factor (EGF) play a role in these events, 2-mm skin punch biopsies were obtained and maintained for 8 to 10 days in a basal medium containing 0.15 mM Ca2+ with and without growth factors, or containing 1.4 mM Ca2+ with and without antibodies to the same growth factors. In parallel experiments, cultured human keratinocytes were incubated for 2 days in the same basal medium in the presence or absence of the same growth factors and antibodies. Consistent with previous reports, organ cultures incubated in the low-Ca2+ (0.15 mM) medium rapidly degenerated. Neither IGF-1 nor EGF prevented the complete degeneration of epidermis and dermis in these organ cultures. Interestingly, the addition of an anti-IGF-1 receptor (IGF-1R) antibody to the organ cultures maintained in high-Ca2+ medium induced changes reminiscent of those seen when the organ cultures were maintained in low-Ca2+ medium, i.e. tissue degeneration. In contrast, antibodies to EGF receptor, used for comparison, only produced focal areas of epidermal necrosis. In vitro, IGF-1 is a known mitogen for keratinocytes. In cultured human keratinocytes, anti-IGF-1R antibody partially inhibited the IGF-1-mediated stimulation of human keratinocyte proliferation without affecting normal spontaneous growth. Additionally, IGF-1R immunolocalized to basal keratinocytes in vivo, exhibited specific binding to IGF-1 in vitro. This indicated a critical role for IGF-1R in both organ cultures ex vivo and cultured cells in vitro. Messenger RNA encoding both IGF-1 and IGF-1R were readily detected by RT-PCR in organ cultures incubated in both low- and high-Ca2+ medium. There were no detectable differences in IGF-1 mRNA in organ cultures growing in the low- or high-Ca2+ medium, but lower levels of IGF-1R mRNA were observed in the organ cultures maintained in low-Ca2+ medium than in those in high Ca2+ medium. These findings are consistent with homeostatic changes in the tissue grown under different calcium concentrations. IGF-1 mRNA was detected in several skin cell populations in vitro, even though it was undetectable in cultured keratinocytes. Taken together these findings indicate that (1) the IGF-1/ IGF-1R loop is critically involved in maintenance of human skin organ cultures ex vivo, and (2) IGF-1, locally produced by skin cells other than keratinocytes, interacts with its receptor, predominantly expressed in basal keratinocytes, to maintain tissue homeostasis.