androstenediol

  • 文章类型: Journal Article
    厌恶的情绪保护个体免受病原体的侵害,并且发现它在怀孕期间升高。与这些变化有关的生理机制包括免疫标记和孕酮水平。这项研究旨在评估类固醇与妊娠期厌恶敏感性之间的关系。使用前瞻性纵向设计,我们分析了血清类固醇浓度,并通过基于文本的问卷测量了179名孕妇在孕早期和妊娠晚期的厌恶敏感度.我们发现厌恶敏感性与Δ5途径中C19类固醇(包括睾酮)及其前体水平呈正相关(雄烯二醇,DHEA,和它们的硫酸盐)和Δ4途径(雄烯二酮)。此外,在两个三个月中,与5α/β减少的C19类固醇代谢物呈正相关。在头三个月,厌恶敏感性与17-羟基孕烷醇酮和一些雌激素呈正相关.在妊娠晚期,与皮质醇和免疫保护性Δ5C197α/β-羟基类固醇呈正相关。我们的研究结果表明,厌恶敏感性与免疫调节类固醇呈正相关,在妊娠晚期,可能与潜在的母亲焦虑相关症状有关的类固醇。这项研究强调了怀孕期间荷尔蒙变化与厌恶敏感性之间的复杂关系。
    The emotion of disgust protects individuals against pathogens, and it has been found to be elevated during pregnancy. Physiological mechanisms discussed in relation to these changes include immune markers and progesterone levels. This study aimed to assess the association between steroids and disgust sensitivity in pregnancy. Using a prospective longitudinal design, we analyzed blood serum steroid concentrations and measured disgust sensitivity via text-based questionnaires in a sample of 179 pregnant women during their first and third trimesters. We found positive correlations between disgust sensitivity and the levels of C19 steroids (including testosterone) and its precursors in the Δ5 pathway (androstenediol, DHEA, and their sulfates) and the Δ4 pathway (androstenedione). Additionally, positive correlations were observed with 5α/β-reduced C19 steroid metabolites in both trimesters. In the first trimester, disgust sensitivity was positively associated with 17-hydroxypregnanolone and with some estrogens. In the third trimester, positive associations were observed with cortisol and immunoprotective Δ5 C19 7α/β-hydroxy-steroids. Our findings show that disgust sensitivity is positively correlated with immunomodulatory steroids, and in the third trimester, with steroids which may be related to potential maternal-anxiety-related symptoms. This study highlights the complex relationship between hormonal changes and disgust sensitivity during pregnancy.
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  • 文章类型: Journal Article
    为了评估3-C和17-C取代基在DHEA和5-AED分子的细胞毒性和细胞保护作用中的作用,它们的衍生物是使用相应的酸酐或酰氯通过酯化合成的。因此,获得了七个化合物:四个DHEA衍生物(DHEA3-丙酸酯,DHEA3-丁酸酯,DHEA3-乙酸酯,DHEA3-甲基磺酸盐)和三种5-AED衍生物(5-AED3-丁酸酯,5-AED3,17-二丙酸酯,5-AED3,17-二丁酸酯)。所有这些化合物对HeLa和K562人癌细胞均显示出微摩尔细胞毒性活性。类固醇的丙酸酯:DHEA3-丙酸酯和5-AED3,17-二丙酸酯证明了在与HeLa和K562细胞长期孵育五天期间的最大细胞抑制作用。这些化合物刺激正常Wi-38细胞的生长30-50%,这表明了它们对非癌细胞的细胞保护特性。合成的类固醇衍生物通过减少健康志愿者外周血单核细胞产生的活性氧(ROS)而表现出抗氧化活性,如鲁米诺刺激的化学发光测定所示。类固醇DHEA的丙酸酯显示出最高的抗氧化作用。与对照相比,DHEA3-丙酸酯将鲁米诺刺激的化学发光抑制了73%,DHEA,只抑制了15%。这些数据表明,类固醇分子中3-C和17-C处的丙酸取代基有望产生具有抗氧化特性的免疫刺激和细胞保护物质。
    In order to evaluate the role of substituents at 3-C and 17-C in the cytotoxic and cytoprotective actions of DHEA and 5-AED molecules, their derivatives were synthesized by esterification using the corresponding acid anhydrides or acid chlorides. As a result, seven compounds were obtained: four DHEA derivatives (DHEA 3-propionate, DHEA 3-butanoate, DHEA 3-acetate, DHEA 3-methylsulfonate) and three 5-AED derivatives (5-AED 3-butanoate, 5-AED 3,17-dipropionate, 5-AED 3,17-dibutanoate). All of these compounds showed micromolar cytotoxic activity toward HeLa and K562 human cancer cells. The maximum cytostatic effect during long-term incubation for five days with HeLa and K562 cells was demonstrated by the propionic esters of the steroids: DHEA 3-propionate and 5-AED 3,17-dipropionate. These compounds stimulated the growth of normal Wi-38 cells by 30-50%, which indicates their cytoprotective properties toward noncancerous cells. The synthesized steroid derivatives exhibited antioxidant activity by reducing the production of reactive oxygen species (ROS) by peripheral blood mononuclear cells from healthy volunteers, as demonstrated in a luminol-stimulated chemiluminescence assay. The highest antioxidant effects were shown for the propionate ester of the steroid DHEA. DHEA 3-propionate inhibited luminol-stimulated chemiluminescence by 73% compared to the control, DHEA, which inhibited it only by 15%. These data show the promise of propionic substituents at 3-C and 17-C in steroid molecules for the creation of immunostimulatory and cytoprotective substances with antioxidant properties.
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  • 文章类型: Journal Article
    暂无摘要。
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  • 文章类型: Journal Article
    5-雄烯二醇(ADIOL)作为选择性雌激素受体β(ERβ)配体,对许多疾病具有保护作用。所以,我们对其在乙酸(AA)诱导的结肠炎中的作用进行了新的研究,并研究了其对TLR4介导的PI3K/Akt和NF-κB通路的影响以及ERβ作为贡献机制的潜在作用.
    方法:大鼠随机分为5组;对照组,结肠炎,结肠炎+美沙拉嗪(MLZ),结肠炎+ADIOL,结肠炎+ADIOL+PHTPP(ER-β拮抗剂)。在第8天通过乙酸(AA)的直肠灌肠诱发结肠炎。在治疗结束时,收集结肠进行宏观评估。丙二醛(MDA)的组织水平,超氧化物歧化酶(SOD),核因子κB(NF-κB),toll样受体(TLR4),并测定磷酸化蛋白激酶B(pAKT)。此外,白细胞介素-1β(IL-1β)基因表达,金属蛋白酶9(Mmp9),肌醇3磷酸激酶(PI3K),中性粒细胞明胶酶相关脂质运载蛋白(NGAL),评估ERβ和NLRP6。还研究了组织病理学和免疫组织化学研究。
    结果:与未治疗的AA组相比,注射ADIOL后,疾病活动指数(DAI)和宏观评估指标显著下降.的确,ADIOL显著降低结肠组织MDA水平,TLR4,pAKT,和NF-κB免疫染色,同时增加SOD活性和βcatenin免疫染色。ADIOL减轻了IL1β的高基因表达,NGAL,MMP9和PI3K同时增加ERβ和NLRP6基因表达。此外,ADIOL可明显改善AA组的病理变化。特异性ERβ拮抗剂,PHTPP,ADIOL的这些保护作用大大降低。
    结论:ADIOL主要通过激活ERβ对AA诱导的结肠炎有益。
    5-androstenediol (ADIOL) functions as a selective estrogen receptor β (ERβ) ligand with a protective effect against many diseases. So, we conducted a novel insight into its role in acetic acid (AA)-induced colitis and investigated its effect on TLR4-Mediated PI3K/Akt and NF-κB Pathways and the potential role of ERβ as contributing mechanisms.
    METHODS: Rats were randomized into 5 Groups; Control, Colitis, Colitis + mesalazine (MLZ), Colitis + ADIOL, and Colitis + ADIOL + PHTPP (ER-β antagonist). The colitis was induced through a rectal enema of acetic acid (AA) on the 8th day. At the end of treatment, colons were collected for macroscopic assessment. Tissue levels of malondialdehyde (MDA), superoxide dismutase (SOD), nuclear factor kappa b (NF-κB), toll-like receptor (TLR4), and phosphorylated Protein kinase B (pAKT) were measured. Besides, Gene expression of interleukin-1beta (IL-1β), metalloproteases 9 (Mmp9), inositol 3 phosphate kinase (PI3K), Neutrophil gelatinase-associated lipocalin (NGAL), ERβ and NLRP6 were assessed. Histopathological and immunohistochemical studies were also investigated.
    RESULTS: Compared to the untreated AA group, the disease activity index (DAI) and macroscopic assessment indicators significantly decreased with ADIOL injections. Indeed, ADIOL significantly decreased colonic tissue levels of MDA, TLR4, pAKT, and NF-κB immunostainig while increased SOD activity and β catenin immunostainig. ADIOL mitigated the high genetic expressions of IL1β, NGAL, MMP9, and PI3K while increased ERβ and NLRP6 gene expression. Also, the pathological changes detected in AA groups were markedly ameliorated with ADIOL. The specific ERβ antagonist, PHTPP, largely diminished these protective effects of ADIOL.
    CONCLUSIONS: ADIOL could be beneficial against AA-induced colitis mostly through activating ERβ.
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  • 文章类型: Journal Article
    中等剂量至高剂量的电离辐射可导致潜在的危及生命的疾病并增加死亡风险。在临床前测试中,已显示5-雄烯二醇可有效防止造血急性放射综合征。这种药剂对先天免疫很重要,用于调节细胞周期进程,减少辐射诱导的细胞凋亡,调节DNA修复.该药物已在临床上评估了其药代动力学和安全性。美国食品和药物管理局授予其可注射储库制剂(NEUMUNE)的研究新药地位。其安全性和有效性特征使其成为进一步发展为辐射对策的有吸引力的候选者。
    Moderate-to-high doses of ionizing irradiation can lead to potentially life-threatening morbidities and increase mortality risk. In preclinical testing, 5-androstenediol has been shown to be effective in protecting against hematopoietic acute radiation syndrome. This agent is important for innate immunity, serves to modulate cell cycle progression, reduces radiation-induced apoptosis, and regulates DNA repair. The drug has been evaluated clinically for its pharmacokinetics and safety. The United States Food and Drug Administration granted investigational new drug status to its injectable depot formulation (NEUMUNE). Its safety and efficacy profiles make it an attractive candidate for further development as a radiation countermeasure.
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  • 文章类型: Journal Article
    神经类固醇,5-雄烯二醇(ADIOL)已通过实验应用于预防许多疾病,因为它具有抗氧化剂,抗炎,和抗凋亡作用。在我们的研究中,我们研究其在腹部术后粘连(APA)形成中的作用。我们的结果表明,ADIOL减轻了雄性大鼠盲肠磨损(CA)模型诱导后的APA形成。有趣的是,每次在APA诱导前服用ADIOL,通过增加超氧化物歧化酶(SOD)和降低丙二醛(MAD)水平来抑制氧化应激,与假手术组相似,此外,通过减少toll样受体4(TLR4)抑制炎症途径,核因子κB(NFκB),高迁移率组框1(HMGB1)与假手术组相似,此外,假手术组的转化生长因子β1(TGFβ1)和α平滑肌肌动蛋白(αSMA)水平降低至相似水平。而APA诱导后给予ADIOL可通过降低氧化应激导致粘连形成减少(→MDA和→SOD水平),炎症标志物(TLR4,NFκB,和*HMGB1水平),和胶原蛋白的沉积(TGF1β和αSMA水平)是CA模型中这些水平的高度显着方式,但在假手术组中也是显着的。结论是,在APA诱导前预先给药ADIOL比粘连形成后给药更有效。
    Neurosteroid, 5-androstenediol (ADIOL) had been experimentally applied to protect against many diseases as it had anti-oxidant, anti-inflammatory, and anti-apoptotic effects. In our study, we investigate its role in abdominal postoperative adhesion (APA) formations. Our results demonstrate that ADIOL alleviates APA formation after induction by cecal abrasion (CA) model in the male rat. Interestingly, per administration of ADIOL before APA induction leads to inhibit oxidative stress by increasing superoxide dismutase (SOD) and decreasing Malondialdehyde (MAD) levels to a similar level to the sham group, in addition inhibiting inflammatory pathway by decreasing toll-like receptor 4 (TLR4), nuclear factor kappa-B (NFκB), and High mobility group box 1 (HMGB1) to a similar level to the sham group, furthermore decreasing Transforming growth factor beta 1 (TGFβ1) and alpha Smooth muscle -actin (α SMA) levels to similar levels in the sham group. While administration of ADIOL after APA induction lead to decrease adhesions formation by decreasing oxidative stress (↓MDA and ↑SOD levels), inflammatory markers (↓TLR4, ↓NFκB, and ↓HMGB1levels), and collagen deposition by (↓TGF1 β and↓α SMA levels) is the highly significant manner to those levels in CA model but also significant to those levels in the sham group. Concluded that, pre-administration of ADIOL before APA induction was more effective than its administration after adhesions formations.
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  • 文章类型: Journal Article
    Animal experiments have consistently shown that estrogen receptor β (ERβ)-selective ligands have antidepressant and anxiolytic effects. In humans, endogenous ligands for ERβ include 5α-androstane-3β, 17β-diol (3βAdiol) and androstenediol (Δ5-diol). We determined, for the first time, the exact serum levels of 3βAdiol and Δ5-diol in young healthy volunteers using liquid chromatography-tandem mass spectrometry (LC-MS/MS). We investigated the effect of the menstrual cycle on the levels of these steroids in women; then, we performed a gender comparison. Blood samples were collected from 48 subjects: 23 women (mean age = 28.4±7.8 years) and 25 men (mean age = 31.4±7.8 years). We collected the blood samples of women at three time-points in the menstrual cycle: the early follicular phase, ovulatory or mid-cycle phase, and mid-luteal phase. A total of 92 blood samples were analyzed using LC-MS/MS. The levels of two well-studied steroids, namely dehydroepiandrosterone (DHEA) and 17β-estradiol (E2), were simultaneously measured. Depression rating scale (Hamilton Rating Scale for Depression, Beck Depression Inventory-II and Quick Inventory of Depressive Symptomatology) scores were also recorded at the time of blood sampling. Significant differences in the levels of 3βAdiol and E2 and in the depression rating scale scores were observed over the duration of the menstrual cycle of the women. The levels of 3βAdiol and Δ5-diol were significantly lower in women than in men. E2 levels were higher in women than in men, and DHEA levels did not differ significantly between men and women. Further, women had higher scores than men on the Hamilton Rating Scale for Depression. Sex differences in depressive symptoms can be explained by 3βAdiol and Δ5-diol levels, and the effect of the menstrual cycle on mood can be explained by 3βAdiol and E2 levels, not by Δ5-diol level.
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  • 文章类型: Journal Article
    Associations of androstenediol, which has both androgenic and estrogenic activities, with circulating reproductive hormones and stress hormone in women during the menopausal transition may be different depending on the menopausal stage. The aim of this study was to determine the changes in circulating androstenediol during the menopausal transition in Japanese women and the associations of androstenediol with estrogen, androgen and cortisol for each stage of the menopausal transition. We divided the 104 subjects into 6 stages by menstrual regularity and follicle-stimulating hormone level: mid reproductive stage, late reproductive stage, early menopausal transition, late menopausal transition, very early postmenopause and early postmenopause. Levels of dehydroepiandrosterone sulfate (DHEAS), estradiol, estrone, testosterone (T), free T, androstenedione and cortisol were measured. Serum androstenediol concentration was measured by using liquid chromatography mass spectrometry. There were no significant differences in androstenediol levels among the 6 stages. Levels of DHEA-S and testosterone showed significant and positive correlations with androstenediol in all stages. Estradiol levels showed negative correlations with androstenediol levels in the late menopausal transition and very early postmenopause (r=-0.452, p = 0.052 and r=-0.617, p = 0.006, respectively). Cortisol levels showed significant and positive correlations with androstenediol levels in the mid and late reproductive stages (r = 0.719, p = 0.003 and r = 0.808, p < 0.001, respectively).The associations of androstenediol with estradiol and cortisol were different depending on the stage of the menopausal transition. Androstenediol may play a compensatory role for estrogen deficiency from late menopausal transition to very early postmenopause.
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  • 文章类型: Clinical Trial
    Congenital adrenal hyperplasia (CAH) is a severe inherited disorder of cortisol biosynthesis that is potentially lethal or can seriously affect quality of life. For the first time, we aimed to assess the stability of 21-deoxycortisol (21Deox), 11-deoxycortisol (11Deox), 4-androstenedione (4AD), 17-hydroxyprogesterone (17OHP) and cortisol (Cort), diagnostic for CAH, in dried blood spots (DBSs) during a 1 year storage at different temperatures. Spiked DBS samples were stored at room temperature, 4 °C, -20 °C or -70 °C, respectively and analyzed in triplicates using liquid chromatography-tandem mass spectrometry at Weeks 0, 1, 2, 3 and 4, Month 6 and Year 1. Analyte levels within ±15% vs the baseline were considered stable. Our observations show that 21Deox, 4AD and 17OHP were not significantly changed for 1 year even at room temperature at either analyte levels. In contrast, Cort required storage at 4 °C, -20 °C or -70 °C for long-term stability, being significantly decreased at room temperature from Month 6 (p<0.01) in both the 30(60) nM and the 90(180) nM samples. 11Deox was significantly decreased at room temperature at Year 1 (p<0.01) and only in the 30(60) nM samples. Thus, all biomarkers were stable for up to 1 year at 4 °C, -20 °C or -70 °C and at least for 4 weeks at room temperature. These findings have implications for analyses of stored DBS samples in 2nd-tier assays in newborn screening and for retrospective CAH studies.
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  • 文章类型: Journal Article
    OBJECTIVE: Alcohol consumption is an established breast cancer risk factor, though further research is needed to advance our understanding of the mechanism underlying the association. We used global metabolomics profiling to identify serum metabolites and metabolic pathways that could potentially mediate the alcohol-breast cancer association.
    METHODS: A cross-sectional analysis of reported alcohol consumption and serum metabolite concentrations was conducted among 211 healthy women 25-29 years old who participated in the Dietary Intervention Study in Children 2006 Follow-Up Study (DISC06). Alcohol-metabolite associations were evaluated using multivariable linear mixed-effects regression.
    RESULTS: Alcohol was significantly (FDR p < 0.05) associated with several serum metabolites after adjustment for diet composition and other potential confounders. The amino acid sarcosine, the omega-3 fatty acid eicosapentaenoate, and the steroid 4-androsten-3beta,17beta-diol monosulfate were positively associated with alcohol intake, while the gamma-tocopherol metabolite gamma-carboxyethyl hydroxychroman (CEHC) was inversely associated. Positive associations of alcohol with 2-methylcitrate and 4-androsten-3beta,17beta-diol disulfate were borderline significant (FDR p < 0.10). Metabolite set enrichment analysis identified steroids and the glycine pathway as having more members associated with alcohol consumption than expected by chance.
    CONCLUSIONS: Most of the metabolites associated with alcohol in the current analysis participate in pathways hypothesized to mediate the alcohol-breast cancer association including hormonal, one-carbon metabolism, and oxidative stress pathways, but they could also affect risk via alternative pathways. Independent replication of alcohol-metabolite associations and prospective evaluation of confirmed associations with breast cancer risk are needed.
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