Cimicifuga

Cimicifuga
  • 文章类型: Journal Article
    使用草药和膳食补充剂(HDS)占药物肝毒性病例的比例越来越高。姜黄或姜黄素,绿茶提取物,藤黄果,黑升麻,红曲米,和ashwagandha是最常见的肝毒性植物药,但它们在普通人群中的患病率和使用原因尚不清楚。
    评估6种潜在肝毒性植物药的成年消费者的患病率和临床特征。
    这项调查研究分析了国家健康与营养调查(NHANES)的全国代表性数据,全国代表,美国总人口的横断面调查。分析了过去30天的处方药和HDS暴露数据,2020年美国人口普查数据用于人口估计。数据进行了2023年7月1日至2024年2月1日的分析。
    成人NHANES参与者在2017年1月至2020年3月之间注册。
    将HDS使用者和6种潜在肝毒性植物产品使用者的基线加权特征与非HDS使用者进行了比较。进行多变量分析以确定与使用HDS或有风险的植物使用相关的因素。
    在这个NHANES队列中注册的9685名成年人中,平均年龄(SE)为47.5(0.5)岁,51.8%(95%CI,50.2%-53.4%)为女性。HDS产品使用的总体患病率为57.6%(95%CI,55.9%-59.4%),而使用6种感兴趣的植物药的患病率为4.7%(95%CI,3.9%-5.7%).最常用的是含姜黄的植物药(n=236),其次是含有绿茶的产品(n=92),ashwagandha(n=28),藤黄(n=20),红曲米(n=20),和黑升麻(n=19)。这6种植物药的消费者年龄明显较大(调整后的优势比[AOR],2.36[95%CI,1.06-5.25];40-59岁和AOR的P=.04,3.96[95%CI,1.93-8.11];≥60岁时P=.001),具有较高的教育水平(AOR,4.78[95%CI,2.62-8.75];P<.001),并且更有可能患有关节炎(AOR,2.27[95%CI,1.62-3.29];P<.001)与非HDS用户相比。估计有15584599(95%CI,13047571-18648801)美国成年人在过去30天内至少使用了6种植物产品中的1种,这与处方潜在肝毒性药物的患者数量相似,包括辛伐他汀(14036024[95%CI,11202460-17594452])和非甾体抗炎药(14793837[95%CI,13014623-16671897])。食用姜黄和绿茶的最常见原因是改善或保持健康。
    在这项调查研究中,估计有1560万美国成年人在过去30天内食用了至少一种具有肝脏功能的植物产品,与服用非甾体类抗炎药和常用降血脂药的人数相当。鉴于对植物产品的生产和测试缺乏监管,临床医生应该意识到这些基本不受管制的产品的消费可能导致的不良事件.
    UNASSIGNED: Use of herbal and dietary supplements (HDSs) accounts for an increasing proportion of drug hepatotoxicity cases. Turmeric or curcumin, green tea extract, Garcinia cambogia, black cohosh, red yeast rice, and ashwagandha are the most frequently reported hepatoxic botanicals, but their prevalence and reasons for use in the general population are unknown.
    UNASSIGNED: To assess the prevalence and clinical characteristics of adult consumers of 6 potentially hepatoxic botanicals.
    UNASSIGNED: This survey study analyzed nationally representative data from the National Health and Nutrition Examination Survey (NHANES), a nationally representative, cross-sectional survey of the general US population. Prescription drug and HDS exposure data in the past 30 days were analyzed, and 2020 US Census data were used for population estimates. Data were analyzed July 1, 2023, to February 1, 2024.
    UNASSIGNED: Adult NHANES participants enrolled between January 2017 and March 2020.
    UNASSIGNED: Baseline weighted characteristics of HDS users and users of 6 potentially hepatotoxic botanical products were compared with non-HDS users. Multivariable analysis was undertaken to identify factors associated with HDS use or at-risk botanical use.
    UNASSIGNED: Among 9685 adults enrolled in this NHANES cohort, the mean (SE) age was 47.5 (0.5) years, and 51.8% (95% CI, 50.2%-53.4%) were female. The overall prevalence of HDS product use was 57.6% (95% CI, 55.9%-59.4%), while the prevalence of using the 6 botanicals of interest was 4.7% (95% CI, 3.9%-5.7%). Turmeric-containing botanicals were most commonly used (n = 236), followed by products containing green tea (n = 92), ashwagandha (n = 28), Garcinia cambogia (n = 20), red yeast rice (n = 20), and black cohosh (n = 19). Consumers of these 6 botanicals were significantly older (adjusted odds ratio [AOR], 2.36 [95% CI, 1.06-5.25]; P = .04 for 40-59 years of age and AOR, 3.96 [95% CI, 1.93-8.11]; P = .001 for ≥60 years of age), had a higher educational level (AOR, 4.78 [95% CI, 2.62-8.75]; P < .001), and were more likely to have arthritis (AOR, 2.27 [95% CI, 1.62-3.29]; P < .001) compared with non-HDS users. An estimated 15 584 599 (95% CI, 13 047 571-18 648 801) US adults used at least 1 of the 6 botanical products within the past 30 days, which was similar to the estimated number of patients prescribed potentially hepatotoxic drugs, including simvastatin (14 036 024 [95% CI, 11 202 460-17 594 452]) and nonsteroidal anti-inflammatory drugs (14 793 837 [95% CI, 13 014 623-16 671 897]). The most common reason for consuming turmeric and green tea was to improve or maintain health.
    UNASSIGNED: In this survey study, an estimated 15.6 million US adults consumed at least 1 botanical product with liver liability within the past 30 days, comparable with the number of people who consumed nonsteroidal anti-inflammatory drugs and a commonly prescribed hypolipidemic drug. Given a lack of regulatory oversight on the manufacturing and testing of botanical products, clinicians should be aware of possible adverse events from consumption of these largely unregulated products.
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  • 文章类型: Journal Article
    科学家面临的最具挑战性的问题之一是寻找合适的非侵入性癌症治疗方法,因为它在世界各地很普遍。靶向致癌途径的植物化学物质的功效似乎非常有希望,并且在过去几年中获得了关注。我们研究了从升麻植物根茎中分离出的对接植物化学物质对IκB激酶α(IKK1/α)蛋白不同结构域的影响。与阳性对照相比,在其他植物化学物质中,升麻苷H-2植物化学物质在IKK1/alpha的激活环路上注册了高对接得分。该蛋白与升麻苷H-2的相互作用主要通过氢键和疏水相互作用来稳定。然后用菊苣苷H-2植物化学物质对IKK1/alpha的活化回路进行了动态模拟,研究表明,升麻苷H-2可能是该蛋白的抑制剂。还检查了药物的药代动力学特性以评估施用药物的安全性。因此,在这项计算机模拟研究中,我们发现升麻苷H-2植物化学抑制IKK1/α的主动突变构象,可能抑制活化B细胞的核因子κ轻链增强子(NF-κB)途径。
    One of the most challenging issues scientists face is finding a suitable non-invasive treatment for cancer, as it is widespread around the world. The efficacy of phytochemicals that target oncogenic pathways appears to be quite promising and has gained attention over the past few years. We investigated the effect of docking phytochemicals isolated from the rhizomes of the Cimicifuga foetida plant on different domains of the IκB kinase alpha (IKK1/alpha) protein. The Cimicifugoside H-2 phytochemical registered a high docking score on the activation loop of IKK1/alpha amongst the other phytochemicals compared to the positive control. The interaction of the protein with Cimicifugoside H-2 was mostly stabilized by hydrogen bonds and hydrophobic interactions. A dynamic simulation was then performed with the Cimicifugoside H-2 phytochemical on the activation loop of IKK1/alpha, revealing that Cimicifugoside H-2 is a possible inhibitor of this protein. The pharmacokinetic properties of the drug were also examined to assess the safety of administering the drug. Therefore, in this in silico study, we discovered that the Cimicifugoside H-2 phytochemical inhibits the actively mutated conformation of IKK1/alpha, potentially suppressing the nuclear factor kappa light chain enhancer of activated B cells (NF-κB) pathway.
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  • 文章类型: Journal Article
    结论:来自Actaea的羟基(苯基)丙酮酸还原酶催化还原4-羟基苯基丙酮酸以及β-羟基丙酮酸的双重反应。因此,它有资格成为fukinolic酸和cimiciffugic酸生物合成以及光呼吸的一部分。呋喃酚酸和cimicfugic酸的积累主要限于总状Actaea(Ranunculaceae)和Actaea/Cimicifuga属的其他物种。拟南芥酸和呋喃酸由被苄基酒石酸部分酯化的羟基肉桂酸部分组成。后者的生物合成尚不清楚。我们从A.racemosa(ArH(P)PR)的悬浮培养材料中分离了编码羟基(苯基)丙酮酸还原酶(GenBankOR393286)的cDNA,并在大肠杆菌中表达以生产蛋白质。异源合成的酶的质量为36.51kDa,并催化NAD(P)H依赖性将4-羟基苯基丙酮酸还原为4-羟基苯基乳酸或β-羟基丙酮酸还原为甘油酸,分别。最佳温度为38°C,最佳pH为pH7.5。NADPH是优选的共底物(Km23±4µM)。ArH(P)PR接受了几种底物,其中β-羟基丙酮酸(Km0.26±0.12mM),然后是4-羟基苯基丙酮酸(Km1.13±0.12mM)是最好的底物。因此,ArH(P)PR具有β-羟基丙酮酸还原酶(参与光呼吸)和羟基苯基丙酮酸还原酶(可能参与苄基酒石酸的形成)的特性。
    CONCLUSIONS: Hydroxy(phenyl)pyruvic acid reductase from Actaea racemosa catalyzes dual reactions in reducing 4-hydroxyphenylpyruvic acid as well as β-hydroxypyruvic acid. It thus qualifies to be part of fukinolic and cimicifugic acid biosynthesis and also photorespiration. The accumulation of fukinolic acid and cimicifugic acids is mainly restricted to Actaea racemosa (Ranunculaceae) and other species of the genus Actaea/Cimicifuga. Cimicifugic and fukinolic acids are composed of a hydroxycinnamic acid part esterified with a benzyltartaric acid moiety. The biosynthesis of the latter is unclear. We isolated cDNA encoding a hydroxy(phenyl)pyruvic acid reductase (GenBank OR393286) from suspension-cultured material of A. racemosa (ArH(P)PR) and expressed it in E. coli for protein production. The heterologously synthesized enzyme had a mass of 36.51 kDa and catalyzed the NAD(P)H-dependent reduction of 4-hydroxyphenylpyruvic acid to 4-hydroxyphenyllactic acid or β-hydroxypyruvic acid to glyceric acid, respectively. The optimal temperature was at 38 °C and the pH optimum at pH 7.5. NADPH is the preferred cosubstrate (Km 23 ± 4 µM). Several substrates are accepted by ArH(P)PR with β-hydroxypyruvic acid (Km 0.26 ± 0.12 mM) followed by 4-hydroxyphenylpyruvic acid (Km 1.13 ± 0.12 mM) as the best ones. Thus, ArH(P)PR has properties of β-hydroxypyruvic acid reductase (involved in photorespiration) as well as hydroxyphenylpyruvic acid reductase (possibly involved in benzyltartaric acid formation).
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  • 文章类型: Journal Article
    背景:植物学参考材料(BRM)通常占物种的比例,栽培品种,以及收获的年份和位置会导致化学成分的变化,这可能会导致使用化学计量学方法的统计学差异。
    目的:比较5种猕猴桃根BRM的化学成分,4个草药来源的A.racemosa根BRM,和A.racemosaBRMS,以及使用化学计量学方法和选定的预处理方法的商业根和补充剂。
    方法:通过流动注射质谱法(FIMS)分析样品,主成分分析(PCA),和阶乘多变量方差分析(mANOVA)。
    结果:在3个属之间发现了统计学上的显着(p=0.05)组成差异(Actaea,Panax,和银杏),5种Actaea(A.消旋体,A.cimicifuga,A.达胡丽卡,A.pachypoda,和A.rubra)根BRM,4个草药来源的A.racemosa根BRM,和A.racemosaBRMS和商业根和补充剂。发现6%的BRM变量的变异性在数量上是保守的,并减少了4种根BRM来源之间的成分差异。A.racemosa和其他ActaeaBRM的成分重叠受技术重复变化的影响,预处理方法,变量的选择,和置信区间的选择。对于测试的预处理方案,灵敏度范围为94%至97%,特异性范围为21%至89%。
    结论:环境,遗传,化学计量学因素会影响物种和真正的植物参考材料之间的区别。
    结论:从类类比的软独立建模得出的频率分布图为理解实验因素的影响提供了极好的手段。
    BACKGROUND: Botanical reference materials (BRMs) generally account for the species, cultivar, and year and location of harvest that result in variability in the chemical composition that may lead to statistically significant differences using chemometric methods.
    OBJECTIVE: To compare the chemical composition of five species of Actaea root BRMs, four herbal sources of A. racemosa root BRMs, and A. racemosa BRMS, and commercial roots and supplements using chemometric methods and selected pre-processing approaches.
    METHODS: Samples were analyzed by flow injection mass spectrometry (FIMS), principal component analysis (PCA), and factorial multivariate analysis of variance (mANOVA).
    RESULTS: Statistically significant (P = 0.05) compositional differences were found between three genera (Actaea, Panax, and Ginkgo), five species of Actaea (A. racemosa, A. cimicifuga, A. dahurica, A. pachypoda, and A. rubra) root BRMs, four herbal sources of A. racemosa root BRMs, and A. racemosa BRMS and commercial roots and supplements. The variability of 6% of the BRM variables was found to be quantitatively conserved and reduced the compositional differences between the four sources of root BRMs. Compositional overlap of A. racemosa and other Actaea BRMs was influenced by variation in technical repeats, pre-processing methods, selection of variables, and selection of confidence limits. Sensitivity ranged from 94 to 97% and specificity ranged from 21 to 89% for the pre-processing protocols tested.
    CONCLUSIONS: Environmental, genetic, and chemometric factors can influence discrimination between species and authentic botanical reference materials.
    CONCLUSIONS: Frequency distribution plots derived from soft independent modeling of class analogy provide excellent means for understanding the impact of experimental factors.
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  • 文章类型: Journal Article
    作为激素替代疗法的替代品,许多乳腺癌患者使用黑升麻(BC)提取物联合多柔比星(DOX)化疗.在这项研究中,我们评估了BC和DOX处理的MCF-7细胞的活力和存活率。MCF-7异种移植物的临床前模型用于确定BC和DOX给药对肿瘤生长和代谢的影响。与对照相比,用DOX和BC孵育后的凋亡细胞的数量显著增加(〜100%)。用DOX处理改变了MCF-7细胞形成集落的潜力;然而,与BC共同孵育不会影响此过程。在体内,PET-CT成像显示DOX和BC的联合治疗引起代谢活性(29%)和血管生成(32%)的显著降低。DOX和BC治疗都抑制了20%和12%的肿瘤生长,分别,加起来是57%,vs.控制。我们成功地证明了BC增加了DOX的细胞毒性作用,导致肿瘤大小显著减小。关于药物转运和肿瘤生长生物标志物的进一步研究对于建立乳腺癌患者BC的潜在机制和潜在临床应用是必要的。
    As a substitution for hormone replacement therapy, many breast cancer patients use black cohosh (BC) extracts in combination with doxorubicin (DOX)-based chemotherapy. In this study, we evaluated the viability and survival of BC- and DOX-treated MCF-7 cells. A preclinical model of MCF-7 xenografts was used to determine the influence of BC and DOX administration on tumor growth and metabolism. The number of apoptotic cells after incubation with both DOX and BC was significantly increased (~100%) compared to the control. Treatment with DOX altered the potential of MCF-7 cells to form colonies; however, coincubation with BC did not affect this process. In vivo, PET-CT imaging showed that combined treatment of DOX and BC induced a significant reduction in both metabolic activity (29%) and angiogenesis (32%). Both DOX and BC treatments inhibited tumor growth by 20% and 12%, respectively, and combined by 57%, vs. control. We successfully demonstrated that BC increases cytotoxic effects of DOX, resulting in a significant reduction in tumor size. Further studies regarding drug transport and tumor growth biomarkers are necessary to establish the underlying mechanism and potential clinical use of BC in breast cancer patients.
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  • 文章类型: Journal Article
    本研究旨在调查cimicifugaraceemosa(L.)Nutt提取物(CIMI)降低了体外培养的卵巢中地塞米松(DEXA)的有害作用。收集小鼠卵巢并仅在DMEM中培养或补充5ng/mL的CIMI,或4ng/mLDEXA,或者CIMI和DEXA。将卵巢在37.5°C下在5%CO2中培养6天。卵巢形态学,卵泡超微结构,以及Bax的mRNA水平,评估Bcl-2和Caspase-3。结果表明,DEXA降低了形态正常卵泡的百分比,而CIMI可预防DEXA引起的有害影响。此外,DEXA对基质细胞密度有负面影响,而CIMI预防了这些不良反应。用DEXA和CIMI培养的卵巢显示Bax的mRNA水平相似,与在对照培养基中培养的Bcl-2和Caspase-3相比,而用DEXA培养的卵巢增加了上述基因的表达。此外,CIMI培养的卵巢超微结构保存良好。因此,CIMI的提取物能够防止DEXA对培养的小鼠卵巢造成的有害影响。
    The present study aims to investigate if Cimicifuga racemosa (L.) Nutt extract (CIMI) reduces deleterious effects of dexamethasone (DEXA) in ovaries cultured in vitro. Mouse ovaries were collected and cultured in DMEM+ only or supplemented with 5 ng/mL of CIMI, or 4 ng/mL DEXA, or both CIMI and DEXA. The ovaries were cultured at 37.5°C in 5% CO2 for 6 days. Ovarian morphology, follicular ultrastructure, and the levels of mRNA for Bax, Bcl-2, and Caspase-3 were evaluated. The results showed that DEXA reduced the percentage of morphologically normal follicles, while CIMI prevented the deleterious effects caused by DEXA. In addition, DEXA negatively affected the stromal cellular density, while CIMI prevented these adverse effects. Ovaries cultured with DEXA and CIMI showed similar levels of mRNA for Bax, Bcl-2, and Caspase-3 compared to those cultured in control medium, while ovaries cultured with DEXA had increased expression of the above genes. Additionally, the ultrastructure of the ovaries cultured with CIMI was well preserved. Thus, the extract of CIMI was able to prevent the deleterious effects caused by DEXA on cultured mouse ovaries.
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  • 文章类型: Journal Article
    黑升麻(BC)(Cimicifugaracemosa)可以通过抗增殖,预防和治疗乳腺癌,促凋亡,抗雌激素,和抗炎作用。本研究旨在评估BC对肿瘤细胞增殖的影响,通过Ki67表达测量,在导管原位癌(DCIS)患者的术前窗口试验中。
    患者在手术前用BC提取物治疗2至6周。符合条件的受试者是那些在核心活检中患有DCIS的受试者。术前/术后使用自动定量免疫荧光(AQUA)测量Ki67。Ki67,肿瘤体积,用双侧Wilcoxon符号秩检验评估激素变化,α=.05。
    31名患者平均治疗24.5天(中位数25;范围15-36)。Ki67无显著降低(n=26;P=.20;治疗前中位数1280,治疗后中位数859;治疗前范围175-7438,治疗后范围162-3370)。肿瘤体积,雌二醇,FSH无明显变化。没有报告3级或4级不良事件。
    BC使用对细胞增殖没有显著影响,肿瘤体积,或浸润性疾病在DCIS患者中的发病率上升。它的耐受性很好,没有观察到明显的毒性。需要进一步研究阐明BC在乳腺癌治疗和预防中的作用。ClinicalTrials.gov标识符:NCT01628536https://clinicaltrials.gov/ct2/show/NCT01628536。
    Black cohosh (BC) (Cimicifuga racemosa) may prevent and treat breast cancer through anti-proliferative, pro-apoptotic, anti-estrogenic, and anti-inflammatory effects. This study sought to evaluate the effect of BC on tumor cellular proliferation, measured by Ki67 expression, in a pre-operative window trial of ductal carcinoma in situ (DCIS) patients.
    Patients were treated pre-operatively for 2 to 6 weeks with BC extract. Eligible subjects were those who had DCIS on core biopsy. Ki67 was measured using automated quantitative immunofluorescence (AQUA) pre/post-operatively. Ki67, tumor volume, and hormone changes were assessed with 2-sided Wilcoxon signed-rank tests, α = .05.
    Thirty-one patients were treated for an average of 24.5 days (median 25; range 15-36). Ki67 decreased non-significantly (n = 26; P = .20; median pre-treatment 1280, post-treatment 859; range pre-treatment 175-7438, post-treatment 162-3370). Tumor volume, estradiol, and FSH did not change significantly. No grade 3 or 4 adverse events were reported.
    BC use showed no significant impact on cellular proliferation, tumor volume, or invasive disease upgrade rates in DCIS patients. It was well-tolerated, with no observed significant toxicities. Further study is needed to elucidate BC\'s role in breast cancer treatment and prevention.ClinicalTrials.gov Identifier: NCT01628536https://clinicaltrials.gov/ct2/show/NCT01628536.
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  • 文章类型: Journal Article
    癌症患者可以将草药治疗与化疗相结合。我们咨询了VigiBase,世卫组织个例安全性报告(ICSR)数据库,该数据库记录了草药产品与抗癌治疗联合使用时可疑药物不良反应(ADR)的报告。我们专注于抗肿瘤(L01ATC类)或激素拮抗剂(L02BATC类)与10种常用草药(菠萝,绿茶,大麻,黑升麻,姜黄,紫锥菊,圣约翰草,牛奶蓟和姜)将ICSRs中描述的不良反应与文献进行比较。从数据库中提取了总共1057个ICSR,但只有134个足够完整(或不涉及太多治疗线)以保留它们用于分析。最后,可以解释51个可合理化的ICSR,这导致我们提出了药代动力学或药效学相互作用机制。报告更频繁地涉及女性,而一半的可合理化ICSRs涉及Viscum专辑和Silybummarianum。如果临床医生能够访问已发布的信息,则可以避免5%的ADR。同样重要的是要注意,在8%的案例中,观察到的ADR危及生命.因此,卫生保健专业人员应更多地考虑植物警惕,以最好地治疗癌症患者并获得更好的综合护理。
    Cancer patients could combine herbal treatments with their chemotherapy. We consulted VigiBase, a WHO database of individual case safety reports (ICSRs) which archives reports of suspected Adverse Drug Reactions (ADRs) when herbal products are used in conjunction with anti-cancer treatment. We focused on the possible interactions between antineoplastic (L01 ATC class) or hormone antagonists (L02B ATC class) with 10 commonly used herbs (pineapple, green tea, cannabis, black cohosh, turmeric, echinacea, St John\'s wort, milk thistle and ginger) to compare ADRs described in ICSRs with the literature. A total of 1057 ICSRs were extracted from the database but only 134 were complete enough (or did not concern too many therapeutic lines) to keep them for analysis. Finally, 51 rationalizable ICSRs could be explained, which led us to propose a pharmacokinetic or pharmacodynamic interaction mechanism. Reports concerned more frequently women and half of the rationalizable ICSRs involved Viscum album and Silybum marianum. 5% of the ADRs described could have been avoided if clinicians had had access to the published information. It is also important to note that in 8% of the cases, the ADRs observed were life threatening. Phytovigilance should thus be considered more by health care professionals to best treat cancer patients and for better integrative care.
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  • 文章类型: Journal Article
    子宫内膜异位症(EMS)是一种复发性和雌激素依赖性疾病。对于子宫内膜异位症,如深部子宫内膜异位症和卵巢子宫内膜样囊肿,手术是最有效的治疗方法。长期随访显示,手术治疗后子宫内膜异位症复发率高,所以术后需要药物来减少复发,促性腺激素释放激素激动剂(GnRH-a)是最常用的术后治疗药物.GnRH-a可以通过降低体内激素水平来减少治疗后子宫内膜异位症的复发。然而,使用GnRH-a可引起围绝经期症状,尤其是骨质疏松,骨丢失,和骨头疼痛,因此,GnRH-a的使用通常受到限制。补充疗法通常用于减轻由GnRH-a引起的不利影响。然而,长期使用激素类药物可能导致EMS复发,血栓形成,和乳腺癌。因此,迫切需要一种更安全,更有效的药物来减轻GnRH-a引起的不良反应。近年来,国内外学者研究发现,大头胡麻异丙醇提取物(ICR),作为植物提取物,能更好的缓解围绝经期妇女的症状。同时,一些研究初步证实,黑升麻制剂可以缓解EMS患者GnRH-a治疗引起的围绝经期症状。
    探讨黑升麻制剂对GnRH-a诱导围绝经期症状大鼠模型骨代谢的影响。
    通过注射GnRH-a建立围绝经期症状大鼠模型。以生理盐水(NS注射液)作为对照。根据建模方法和药物干预,将大鼠随机分为4组:GnRH-a注射液+生理盐水干预组(GnRH-a+NS),生理盐水注射对照组+生理盐水干预组(NS+NS),GnRH-a注射+雌二醇干预组(GnRH-a+E2),GnRH-a打针+黑升麻制剂干预组(GnRH-a+ICR)。用阴道涂片法鉴定大鼠模型,然后给予相应的药物干预28天。干预之后,大鼠被处死。通过双能X射线骨密度扫描仪检测大鼠股骨远端骨矿物质密度(BMD)。将大鼠胫骨骨组织脱钙并制成切片。HE染色观察各组大鼠胫骨的病理形态学变化。各组大鼠胫骨骨的组织形态计量学参数,如小梁骨体积(TBV),小梁厚度(TbTh),骨小梁数(TbN),和小梁间距(TbSp),通过使用自动图像分析系统进行检测和分析。
    (1)GnRH-a+NS组股骨远端BMD水平明显低于NS+NS组,GnRH-a+E2和GnRH-a+ICR组(P<0.01),GnRH-a+E2和GnRH-a+ICR组的BMD水平略低于NS+NS组,但三组间差异无统计学意义(P>0.05)。(2)不同组胫骨在显微镜下的病理变化如下:NS+NS组胫骨骨小梁结构正常,没有小梁变薄或骨折,足弓结构正常.在GnRH-a+NS组中,一些小梁结构逐渐变细,拱形结构消失了,但小梁未见明显骨折。在GnRH-a+E2和GnRH-a+ICR组中,骨小梁结构正常,没有骨小梁变薄或骨折,足弓结构正常.(3)GnRH-a+INS组TBV水平明显低于NS+NS组,GnRH-a+E2和GnRH-a+ICR组(P<0.01,P<0.05,P<0.01),虽然NS+NS之间没有显著差异,GnRH-a+E2和GnRH-a+ICR组(P>0.05)。(4)四组间TbTh水平差异无统计学意义(P>0.05)。与NS+NS组相比,GnRH-a+NS中的TbTh水平,GnRH-a+E2和GnRH-a+ICR组呈下降趋势,而GnRH-a+E2和GnRH-a+ICR组的TbTh水平略高于GnRH-a+NS组。然而,差异无统计学意义(P>0.05)。(5)与NS+NS组相比,GnRH-a+NS中的TbN水平,GnRH-a+E2、GnRH-a+ICR组显著降低(P<0.05)。与GnRH-a+NS组相比,GnRH-a+E2和GnRH-a+ICR组TbN水平呈轻度下降趋势,但差异无统计学意义(P>0.05)。(6)GnRH-a+NS组TbSp水平明显高于NS+NS组,GnRH-a+E2和GnRH-a+ICR组(P<0.01),虽然NS+NS之间没有显著差异,GnRH-a+E2和GnRH-a+ICR组(P>0.05)。
    注射GnRH-a可以达到预期的效果。注射GnRH-a可能导致大鼠骨量丢失。黑色升麻准备,比如雌激素,可能对注射GnRH-a引起的骨量减少有保护作用。
    Endometriosis (EMS) is a relapsing and estrogen-dependent disease. For endometriosis such as deep endometriosis and ovarian endometrioid cysts, surgery is the most effective treatment. Long-term follow-up showed that the recurrence rate of endometriosis after surgical treatment was high, so postoperative drugs were needed to reduce recurrence, and Gonadotropin-releasing hormone agonists (GnRH-a) were the most commonly used drug for postoperative management.GnRH-a may reduce the post-treatment endometriosis relapses by lowering the hormone levels in the body. However, the use of GnRH-a can give rise to perimenopausal symptoms, especially osteoporosis, bone loss, and bone pain, for which reason GnRH-a use is often limited. The add-back therapy is often used to alleviate the untoward effects caused by GnRH-a. However, long-term use of hormone drugs may lead to EMS recurrence, thrombosis, and breast cancer. Therefore, a safer and more effective drug is urgently needed to alleviate the untoward effects caused by GnRH-a. In recent years, scholars at home and abroad have found that isopropanolic Cimicifuga racemosa extract (ICR), as a plant extract, can better relieve the symptoms of perimenopausal women. At the same time, some studies have initially confirmed that black cohosh preparations can relieve the perimenopausal symptoms caused by GnRH-a treatment in EMS patients.
    To investigate the effect of black cohosh preparations on the bone metabolism of rat models with GnRH-a-induced perimenopausal symptoms.
    The rat models of perimenopausal symptoms were established by GnRH-a injection. and normal saline (NS injection) was used as the control. According to the modeling method and drug intervention, the rats were randomly divided into four groups: GnRH-a injection + saline intervention group (GnRH-a + NS), saline injection control + saline intervention group (NS + NS), GnRH-a injection + estradiol intervention group (GnRH-a + E2), and GnRH-a injection + black cohosh preparation intervention group (GnRH-a + ICR). The rat models were identified with the vaginal smear method, and then the corresponding drug intervention was administrated for 28 days. After the intervention, the rats were sacrificed. The rats\' bone mineral density (BMD) of the distal femur was detected by a dual-energy X-ray bone density scanner. Rat tibia bone tissues were decalcified and made into slices. The pathological and morphological changes of rat tibial bones in each group were observed through HE staining. Histomorphometry parameters of rat tibial bones in each group, such as trabecular bone volume (TBV), trabecular thickness (TbTh), trabecular number (TbN), and trabecular spacing (TbSp), were detected and analyzed by using an automatic image analysis system.
    (1) The BMD level of the distal femur in the GnRH-a + NS group was significantly lower than the NS + NS, GnRH-a + E2, and GnRH-a + ICR groups (P<0.01), the BMD levels in GnRH-a + E2 and GnRH-a + ICR groups were slightly lower than the NS + NS group, but there was no significant difference among the three groups (P>0.05). (2) The pathological changes of the tibia bones under the microscope in different groups were as follows: The tibia bone trabecular structure was normal in the NS + NS group, without trabecular thinning or fracture, and the arch structure was normal. In the GnRH-a + NS group, some trabecular structures tapered, the arch structure disappeared, but no obvious bone fracture was observed in the trabecula. In the GnRH-a + E2 and GnRH-a + ICR groups, the trabecular structures were normal, without trabecular bone thinning or fracture, and the arch structures were normal. (3) The TBV level of the GnRH-a + INS group was significantly lower than that of the NS + NS, GnRH-a + E2 and GnRH-a + ICR groups (P<0.01, P<0.05, P<0.01), while there was no significant difference among NS + NS, GnRH-a + E2 and GnRH-a + ICR groups (P>0.05). (4) The TbTh levels in the four groups had no significant difference (P>0.05). Compared with the NS + NS group, the TbTh levels in the GnRH-a + NS, GnRH-a + E2, and GnRH-a + ICR groups showed a descending tendency, while the TbTh levels in the GnRH-a + E2 and GnRH-a + ICR groups were slightly higher than that of the GnRH-a + NS group. However, such differences were not significant statistically (P>0.05). (5) Compared with the NS + NS group, the TbN levels in the GnRH-a + NS, GnRH-a + E2, and GnRH-a + ICR groups decreased remarkably (P<0.05). Compared with the GnRH-a + NS group, the TbN levels in the GnRH-a + E2 and GnRH-a + ICR groups showed a mild descending tendency, but such differences were not significant statistically (P>0.05). (6) The TbSp level of the GnRH-a + NS group was significantly higher than that of the NS + NS, GnRH-a + E2, and GnRH-a + ICR groups (P<0.01), while there was no significant difference among NS + NS, GnRH-a + E2 and GnRH-a + ICR groups (P>0.05).
    The GnRH-a injection could achieve the desired effect. GnRH-a injection may lead to the loss of bone mass in rats. Black cohosh preparations, like estrogen, may have a protective effect on bone mass loss caused by GnRH-a injection.
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  • 文章类型: Journal Article
    Cimicifuga属是the科最小的属之一。升麻起源于升麻的根茎,还有C.Dahurica,C、消旋体,C.foetida,和C.heracleifolia已经被用作消炎药,中药中的镇痛和解热疗法。炎症与许多疾病有关。台湾升麻经常用于民间治疗炎症。植物化学研究和色谱分离从西米根草中提取的提取物中分离出了六个新化合物:西米托瓦蛋白A-F(分别为1-6)。在广泛的光谱数据分析(1D-和2D-NMR,MS,和紫外线)并与文献数据进行比较。评估了一些分离物对抑制脂多糖激活的RAW264.7鼠巨噬细胞中NO产生的影响。在隔离物中,3-6表现出有效的抗NO产生活性,IC50值范围为6.54至24.58μM,分别,与槲皮素相比,iNOS抑制剂,IC50值为34.58μM。这是有关台湾特有植物C的代谢物的第一份报告。台湾。
    The genus Cimicifuga is one of the smallest genera in the family Ranunculaceae. Cimicifugae Rhizoma originated from rhizomes of Cimicifuga simplex, and C. dahurica, C. racemosa, C. foetida, and C. heracleifolia have been used as anti-inflammatory, analgesic and antipyretic remedies in Chinese traditional medicine. Inflammation is related to many diseases. Cimicifuga taiwanensis was often used in folk therapy in Taiwan for inflammation. Phytochemical investigation and chromatographic separation of extracts from the roots of Cimicifuga taiwanensis has led to the isolation of six new compounds: cimicitaiwanins A-F (1-6, respectively). The structures of the new compounds were unambiguously elucidated on the basis of extensive spectroscopic data analysis (1D- and 2D-NMR, MS, and UV) and comparison with the literature data. The effect of some isolates on the inhibition of NO production in lipopolysaccharide-activated RAW 264.7 murine macrophages was evaluated. Of the isolates, 3-6 exhibited potent anti-NO production activity, with IC50 values ranging from 6.54 to 24.58 μM, respectively, compared with that of quercetin, an iNOS inhibitor with an IC50 value of 34.58 μM. This is the first report on metabolite from the endemic Taiwanese plant-C. taiwanensis.
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