Indicator

指标
  • 文章类型: Journal Article
    在食用动物行业中采用标准化的抗微生物剂使用指标(AMU)对于旨在促进在该活动中负责任和明智使用抗微生物剂的计划的成功至关重要。这项研究的目的是介绍使用标准化的AMU指标和指标来量化智利鲑鱼行业中氟苯尼考和土霉素的使用,并以这种方式评估其使用的可行性,考虑到目前由国家渔业和水产养殖局(SERNAPESCA)管理的健康和生产信息的类型,智利负责监管智利水产养殖的机构。SERNAPESCA提供的数据允许构建和评估对数据要求最高的AMU指标和指标。因此,氟苯尼考和土霉素口服和肠胃外给药的使用采用基于动物定义日剂量(TIDDvet)和动物使用日剂量(TIUDDA)的治疗发生率进行量化.为此,这项研究包括来自养殖大西洋鲑鱼的农场的1320个封闭生产周期的信息,在2017年1月至2021年12月之间活跃的银鲑鱼和虹鳟鱼。通过应用标准化的AMU指标和指标,我们能够确定氟苯尼考的TIDDDVet中位数为75.1(80%范围,20.0-158.0)DDDvet每吨年口服手术风险和0.36(80%范围,0.07-1.19)DDDvet每吨年有肠胃外手术风险。对于土霉素,TIDDDDvet中位数为3.09(80%范围,0.74-42.8)和0.47(80%范围,0.09-1.68)口服和肠胃外手术风险吨年DDDvet,分别。氟苯尼考治疗的中位数TIUDDA为45.6(80%范围,10.9-96.5)口服治疗风险吨年UDDA和0.28(80%范围,0.05-0.80)每吨年发生肠胃外治疗的风险。对于土霉素,TIUDDA中位数为2.63(80%范围,0.61-28.2)口服治疗风险吨年UDDA和0.41(80%范围,0.08-1.29)每吨年有肠胃外治疗风险的UDDA。这项研究表明,从传统的AMU指标和指标转向智利鲑鱼行业的标准化指标是可行的。这是可能的,因为主管当局要求鲑鱼养殖场高频率地报告详细的健康和生产信息。使用标准化的AMU指标和指标可以帮助当局更全面地了解智利鲑鱼行业的抗菌药物使用情况。
    The adoption of standardized metrics and indicators of antimicrobial use (AMU) in the food animal industry is essential for the success of programs aimed at promoting the responsible and judicious use of antimicrobials in this activity. The objective of this study was to introduce the use of standardized AMU metrics and indicators to quantify the use of florfenicol and oxytetracycline in the Chilean salmon industry, and in this way evaluate the feasibility of their use given the type of health and production information currently managed by the National Fisheries and Aquaculture Service (SERNAPESCA), the Chilean agency responsible for regulating aquaculture in Chile. The data available from SERNAPESCA allowed the construction and evaluation of the most data-demanding AMU metrics and indicators. Consequently, the use of florfenicol and oxytetracycline administered by oral and parenteral routes was quantified using the treatment incidence based on both animal defined daily dose (TIDDDvet) and animal used daily dose (TIUDDA). To that end, the study included information from 1320 closed production cycles from farms rearing Atlantic salmon, coho salmon and rainbow trout that were active between January 2017 and December 2021. By applying standardized AMU metrics and indicators, we were able to determine that the median of TIDDDvet for florfenicol was 75.1 (80 % range, 20.0-158.0) DDDvet per ton-year at risk for oral procedures and 0.36 (80 % range, 0.07-1.19) DDDvet per ton-year at risk for parenteral procedures. For oxytetracycline, the median TIDDDvet was 3.09 (80 % range, 0.74-42.8) and 0.47 (80 % range, 0.09-1.68) DDDvet per ton-year at risk for oral and parenteral procedures, respectively. The median TIUDDA for treatments with florfenicol was 45.6 (80 % range, 10.9-96.5) UDDA per ton-year at risk for oral treatments and 0.28 (80 % range, 0.05-0.80) UDDA per ton-year at risk for parenteral treatments. For oxytetracycline, the median TIUDDA was 2.63 (80 % range, 0.61-28.2) UDDA per ton-year at risk for oral treatments and 0.41 (80 % range, 0.08-1.29) UDDA per ton-year at risk for parenteral treatments. This study demonstrates that it is feasible to move from traditional AMU metrics and indicators to standardized ones in the Chilean salmon industry. This is possible because the competent authority requires salmon farms to report detailed health and production information at a high frequency. The use of standardized AMU metrics and indicators can help the authority to have a more comprehensive view of the antimicrobial use in the Chilean salmon industry.
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  • 文章类型: Journal Article
    臭氧气体的抗病毒和抗菌性能已被用于空气和现场消毒。然而,过量的臭氧气体暴露对人体有毒,需要监测暴露水平。虽然这是用臭氧指标实现的,在暴露期间的中间时间点确定暴露水平仍然具有挑战性,因为当前的那些只能在端点测量暴露。终点的移位也是困难的,因为指示剂的覆盖范围取决于单一颜色染料。覆盖宽范围的指示剂是治疗各种病原微生物所期望的。这项研究的目的是开发一种具有广泛覆盖范围的双色臭氧指示剂,该指示剂不会损害单个染料的性能。暴露水平由颜色密度和相位的可见变化表示,帮助测量终点和暴露期间的暴露,从而为暴露的个体保持更好的安全性。此外,已经描述了开发双色指示剂的理论方法。
    The antiviral and antibacterial properties of ozone gas have been utilised for air and on-site disinfection. However, excess ozone gas exposure is toxic to humans, necessitating the monitoring of exposure levels. While this has been achieved using ozone indicators, determining exposure levels at intermediate time points during exposure remains challenging owing to the current ones being capable of measuring exposure only at endpoints. Shifts in the endpoint are also difficult as the coverage ranges of the indicators are dependent on a single colour dye. The indicator that covers a wide range is desirable to treat various pathogenic microorganisms. The aim of this study was to develop a two-colour ozone indicator with a broad coverage range that does not compromise the performance of the individual dyes. Exposure levels were indicated by visible changes in colour density and phase, aiding the measurement of exposure at the endpoints and during the exposure period, thereby maintaining better safety profiles for exposed individuals. Additionally, a theoretical approach for the development of two-colour indicators has been described.
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  • 文章类型: Journal Article
    微生物环境DNA和RNA(统称为“eNA”)起源于环境样品中存在的多种和丰富的微生物阵列。这些eNA信号,主要代表整个生物体,作为一个强大的补充信号的片段或残余的较大的生物。因此,将微生物数据整合到生态系统评估和生物指数的工具箱中,有可能改变我们使用eNA数据来理解生物多样性动态和生态系统功能的方式。并为下一代环境监测提供信息。将holobiont和生命之树方法纳入eNA分析可进一步全面了解微生物和其他生物之间的生态相互作用,为推进我们对,并最终操纵与环境管理相关的生态系统属性,养护,野生动物健康,和粮食生产。
    Microbial environmental DNA and RNA (collectively \'eNA\') originate from a diverse and abundant array of microbes present in environmental samples. These eNA signals, largely representing whole organisms, serve as a powerful complement to signals derived from fragments or remnants of larger organisms. Integrating microbial data into the toolbox of ecosystem assessments and biotic indices therefore has the potential to transform how we use eNA data to understand biodiversity dynamics and ecosystem functions, and to inform the next generation of environmental monitoring. Incorporating holobiont and Tree of Life approaches into eNA analyses offers further holistic insight into the range of ecological interactions between microbes and other organisms, paving the way for advancing our understanding of, and ultimately manipulating ecosystem properties pertinent to environmental management, conservation, wildlife health, and food production.
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  • 文章类型: Journal Article
    背景:自身免疫性胃炎(AIG)患者血清学指标与并发症发生之间的关系尚不清楚。
    方法:收集91例AIG患者的临床资料。分析血清学指标与AIG并发症的差异。并探讨了早期预测和诊断AIG并发症的潜在生物标志物。
    结果:我们研究的AIG患者年龄为58.12±11.68岁,包括31名男性和60名女性。52人中有49人G17升高;PGI/II在43/49中降低;48/61中GPA阳性;80人中有28人贫血;58人中有23人缺乏维生素B12。神经内分泌肿瘤(NET)是AIG患者最常见的并发症,占27/91。第二个是息肉,弥补14/91。在AIG中也有9/91的胃粘膜肿瘤发生。G7、PGI、PGII,在不同的胃粘膜病变中,AIG中的PGI/II和VB12均存在(P>0.05)。然而,TPOAb阳性的AIG患者同时发生NET的风险较高(P=0.0212)。那些有NET的AIG患者表现出明显更高的TPOAb水平(P=0.0078)。ROC曲线提示TPOAb可以预测NET在AIG中的存在(AUC=0.7410,P<0.05)。
    结论:我们发现TPOAb可以作为AIG中NET的预测生物标志物。这种可访问的测试有助于内窥镜专家关注TPOAb阳性AIG患者的胃粘膜病变,提高合并症的早期诊断和干预能力。
    BACKGROUND: The association between serological indexes and occurrence of complications in patients with autoimmune gastritis (AIG) remains unclear.
    METHODS: 91 patients with AIG were recruited and their clinical information were collected. The differences between serological indexes and complications of AIG were analyzed. And potential biomarker for early prediction and diagnosis of AIG with complications was explored.
    RESULTS: AIG patients in our study was 58.12 ± 11.68 years old, containing 31 males and 60 females. G17 was elevated in 49 of 52; PGI/II decreased in 43/49; GPA positive in 48/61; Anemia presented 28 in 80; Vitamin B12 deficiency occurred 23 in 58. Neuroendocrine tumor (NET) was the most common complication in AIG patients, accounting for 27/91. The second was polyps, making up for 14/91. There is also 9/91 of gastric mucosa neoplasia happened in AIG. No significant difference of G7, PGI, PGII, PGI/II and VB12 in AIG was found in different gastric mucosal lesions (P > 0.05). However, AIG patients with TPOAb positive had a higher risk in the occurrence of NET simultaneously (P = 0.0212). Those AIG with NET patients exhibited a significantly higher TPOAb level (P = 0.0078). ROC curve suggested that TPOAb can predict the existence of NET in AIG (AUC = 0.7410, P < 0.05).
    CONCLUSIONS: We found that TPOAb can serve as a predictive biomarker of NET in AIG. This accessible test is helpful for endoscopy specialists to pay attention to gastric mucosal lesions in TPOAb-positive AIG patients, improving early diagnosis and intervention of comorbidities ability.
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  • 文章类型: Editorial
    人工智能(AI)是一个快速发展的领域,可以推动关于气候预测的传染病研究。生态指标和环境影响,同时揭示了新的,以前被忽视的事件。一些人畜共患和媒介传播的疾病已经显示出北部地理范围扩大的迹象,迫切需要适当的风险评估和决策支持。人工智能监测系统的部署跟踪动物种群和环境变化在不同气候情景下的传播研究中具有巨大的潜力。此外,人工智能识别新疗法的能力不仅应该加速药物和疫苗的发现,还应该有助于预测其有效性。虽然它对遗传病原体物种形成的贡献将有助于评估从动物到人类的病毒感染的溢出风险。AI专家之间的密切合作,流行病学家和其他利益相关者不仅对于有效应对与各种变量相关的挑战至关重要,但也有必要保证负责任的AI使用。尽管它在许多领域得到了广泛的成功实施,人工智能应该被视为一种补充,而不是替代,传统的公共卫生措施。
    Artificial intelligence (AI) is a rapidly evolving field that can impel research in communicable diseases with respect to climate projections, ecological indicators and environmental impact, at the same time revealing new, previously overlooked events. A number of zoonotic and vector-borne diseases already show signs of expanding their northern geographical ranges and appropriate risk assessment and decision support are urgently needed. The deployment of AI-enabled monitoring systems tracking animal populations and environmental changes is of immense potential in the study of transmission under different climate scenarios. In addition, AI\'s capability to identify new treatments should not only accelerate drug and vaccine discovery but also help predicting their effectiveness, while its contribution to genetic pathogen speciation would assist the evaluation of spillover risks with regard to viral infections from animals to human. Close collaboration between AI experts, epidemiologists and other stakeholders is not only crucial for responding to challenges interconnected with a variety of variables effectively, but also necessary to warrant responsible AI use. Despite its wider successful implementation in many fields, AI should be seen as a complement to, rather than a replacement of, traditional public health measures.
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  • 文章类型: Journal Article
    质量指标对医院管理至关重要,临床决策,和病人护理。在当今技术先进的时代,从复杂的数据集中得出有效的统计数据分析越来越重要。然而,由于资源有限,我们医院的行政部门经常无法优先考虑信息需求。因此,指标数据的收集继续依赖纸质业务。为了解决收集指标数据中的常见问题,例如不完整或不准确的数据,耗时的汇总和统计分析,缺乏及时性,我们已经实施了适当的商业智能(BI)工具。我们提供教育培训,使用户能够根据其特定需求为指标创建可视化模板。这种方法节省时间,减少数据重复,并最大限度地减少写入错误。它在数据分析和及时性方面增强了主管对当前形势和未来前景的理解。最终,这一举措提高了医疗质量和管理效率。
    Quality indicators are essential for hospital management, clinical decision-making, and patient care. In today\'s technologically advanced era, it is increasingly critical to derive effective statistical data analysis from intricate datasets. However, the administrative department within our hospital often fails to prioritize information needs due to limited resources. Consequently, the collection of indicator data continues to rely on paper-based operations.To tackle common issues in collecting indicator data, such as incomplete or inaccurate data, time-consuming aggregation and statistical analysis, and a lack of timeliness, we have implemented appropriate Business Intelligence (BI) tools. We provide educational training to empower users to create visual templates for indicators that are tailored to their specific requirements. This approach saves time, reduces data duplication, and minimizes writing errors. It enhances supervisors\' understanding of the current situation and future prospects in terms of data analysis and timeliness. Ultimately, this initiative improves healthcare quality and management effectiveness.
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  • 文章类型: Journal Article
    利什曼尼酶是由沙蝇传播的被忽视的疾病。它们不成比例地影响全球弱势群体。了解气候与疾病传播之间的关系可以为公共卫生政策和监测开发相关的决策支持工具。这项建模研究的目的是开发一种指标,该指标可在国家以下水平上跟踪欧洲利什曼原虫婴儿传播的气候适用性。
    沙蝇媒介的历史记录,人类利什曼病,生物气候指标,和环境变量被集成在机器学习框架(XGBoost)中,以预测过去两个时期(2001-2010年和2011-2020年)的适用性。我们进一步评估了预测是否与选定国家的人类和动物疾病数据相关(法国,希腊,意大利,葡萄牙,和西班牙)。
    检测到适合利什曼病的气候区域数量增加,特别是在南部和东部国家,再加上向中欧向北扩张。最终模型具有出色的预测能力(AUC=0.970[0.947-0.993]),适合性预测与利什曼原虫的人类利什曼病发病率和犬血清阳性率呈正相关。
    这项研究展示了如何将关键的流行病学数据与开源的气候和环境信息相结合,以开发出一种指标,该指标可以有效地跟踪气候适宜性和疾病风险的时空变化。模型预测与人类疾病发病率之间的正相关表明,该指标可以帮助将利什曼病监测目标定位到传播热点。
    欧盟地平线欧洲研究与创新计划(欧洲气候-健康集群),英国研究与创新。
    UNASSIGNED: Leishmaniases are neglected diseases transmitted by sand flies. They disproportionately affect vulnerable groups globally. Understanding the relationship between climate and disease transmission allows the development of relevant decision-support tools for public health policy and surveillance. The aim of this modelling study was to develop an indicator that tracks climatic suitability for Leishmania infantum transmission in Europe at the subnational level.
    UNASSIGNED: Historical records of sand fly vectors, human leishmaniasis, bioclimatic indicators, and environmental variables were integrated in a machine learning framework (XGBoost) to predict suitability in two past periods (2001-2010 and 2011-2020). We further assessed if predictions were associated with human and animal disease data from selected countries (France, Greece, Italy, Portugal, and Spain).
    UNASSIGNED: An increase in the number of climatically suitable regions for leishmaniasis was detected, especially in southern and eastern countries, coupled with a northward expansion towards central Europe. The final model had excellent predictive ability (AUC = 0.970 [0.947-0.993]), and the suitability predictions were positively associated with human leishmaniasis incidence and canine seroprevalence for Leishmania.
    UNASSIGNED: This study demonstrates how key epidemiological data can be combined with open-source climatic and environmental information to develop an indicator that effectively tracks spatiotemporal changes in climatic suitability and disease risk. The positive association between the model predictions and human disease incidence demonstrates that this indicator could help target leishmaniasis surveillance to transmission hotspots.
    UNASSIGNED: European Union Horizon Europe Research and Innovation Programme (European Climate-Health Cluster), United Kingdom Research and Innovation.
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  • 文章类型: Journal Article
    恶性胸腔积液(MPE)在癌症患者中普遍存在,提示胸膜转移并预测不良预后。然而,在临床环境中准确识别MPE具有挑战性。本研究的目的是建立基于临床指标和血清金属离子水平的创新列线图衍生模型,以识别MPE。
    从2020年7月至2022年5月,连续招募了428例诊断为胸腔积液(PE)的患者。全面的人口统计细节,临床症状,成像数据,病理信息,和实验室结果,包括血清金属离子水平,被系统地收集。通过合并通过LASSO和多变量逻辑回归分析确定的最重要的预测因子来创建列线图。预测因子根据各自的回归系数分配加权点,允许计算对应于MPE概率的总分。使用自举技术的内部验证评估了列线图的性能,包括校准,歧视,和临床适用性。
    使用LASSO回归和多元回归分析确定了七个关键变量,包括呼吸困难,发烧,与恶性肿瘤相容的X线/CT,胸膜癌胚抗原(pCEA),血清神经元特异性烯醇化酶(sNSE),血清癌胚抗原(sCEA),和胸膜乳酸脱氢酶(pLDH)。内部验证强调了我们模型的优异性能(AUC=0.940)。决策曲线分析(DCA)分析表明,在概率阈值范围>1%的情况下,净收益很大。此外,血清钙和铜水平明显升高,与良性胸腔积液(BPE)患者相比,MPE患者的血清锌水平显着降低。
    这项研究有效地开发了一种包含七个标记的用户友好且可靠的MPE识别模型,在临床环境中帮助PE亚型的分类。此外,我们的研究强调了血清金属离子在鉴别恶性胸腔积液和BPE中的临床价值.这一重大进步为医生准确诊断和治疗患有MPE的患者提供了必要的工具。
    UNASSIGNED: Malignant pleural effusion (MPE) is prevalent among cancer patients, indicating pleural metastasis and predicting poor prognosis. However, accurately identifying MPE in clinical settings is challenging. The aim of this study was to establish an innovative nomogram-derived model based on clinical indicators and serum metal ion levels to identify MPE.
    UNASSIGNED: From July 2020 to May 2022, 428 patients diagnosed with pleural effusion (PE) were consecutively recruited. Comprehensive demographic details, clinical symptoms, imaging data, pathological information, and laboratory results, including serum metal ion levels, were systematically collected. The nomogram was created by incorporating the most significant predictors identified through LASSO and multivariate logistic regression analysis. The predictors were assigned weighted points based on their respective regression coefficients, allowing for the calculation of a total score that corresponds to the probability of MPE. Internal validation using bootstrapping techniques assessed the nomogram\'s performance, including calibration, discrimination, and clinical applicability.
    UNASSIGNED: Seven key variables were identified using LASSO regression and multiple regression analysis, including dyspnea, fever, X-ray/CT compatible with malignancy, pleural carcinoembryonic antigen(pCEA), serum neuron-specific enolase(sNSE), serum carcinoembryonic antigen(sCEA), and pleural lactate dehydrogenase(pLDH). Internal validation underscored the superior performance of our model (AUC=0.940). Decision curve analysis (DCA) analysis demonstrated substantial net benefit across a probability threshold range > 1%. Additionally, serum calcium and copper levels were significantly higher, while serum zinc levels were significantly lower in MPE patients compared to benign pleural effusion (BPE) patients.
    UNASSIGNED: This study effectively developed a user-friendly and reliable MPE identification model incorporating seven markers, aiding in the classification of PE subtypes in clinical settings. Furthermore, our study highlights the clinical value of serum metal ions in distinguishing malignant pleural effusion from BPE. This significant advancement provides essential tools for physicians to accurately diagnose and treat patients with MPE.
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  • 文章类型: Journal Article
    鲸目动物的外表面上有多个外生生物,这些附着在特定的微生境上。了解是什么驱动了附件站点的选择,这与完善epibiont作为宿主指标的使用有关。我们报告了约100只雌性中寄生co足类Pennellabalaenoptera的雌性,它们附着在突尼斯(地中海西部)的死去的Cuvier喙鲸Ziphiuscavirostris上;该国的首例报告。co足类仅附着于许多尖锐的,可能是人为的,在宿主皮肤上发现伤口。这一发现表明,新招募的雌性可能会积极寻找促进身体渗透的皮肤区域;一个可能有助于解释Pennellaspp微生境选择模式的因素。,也许还有其他pennellids,在他们的主机上。巴氏疟原虫寄生的估计年龄(由同时发生的表生藤壶球藻的年龄估计支持)也表明鲸目动物宿主可能在这些伤害中幸存下来,至少在最初,推测的死亡原因是由于被渔网缠住而导致的饥饿。
    Cetaceans harbor multiple epibionts on their external surface, and these attach to particular microhabitats. Understanding what drives the selection of attachment sites is relevant for refining the use of epibionts as indicators of their hosts. We report on about 100 females of the mesoparasitic copepod Pennella balaenoptera attached to a dead Cuvier\'s beaked whale Ziphius cavirostris stranded in Tunisia (western Mediterranean); the first report of P. balaenoptera in this country. The copepods were exclusively attached to numerous incisive, likely anthropogenic, wounds found on the host\'s skin. This finding suggests that newly recruited females may actively seek skin areas where physical penetration is facilitated; a factor that may help explain patterns of microhabitat selection by Pennella spp., and perhaps other pennellids, on their hosts. The estimated age of parasitization by P. balaenoptera (supported by age estimations of the co-occurring epibiotic barnacle Conchoderma virgatum) also suggests that the cetacean host likely survived these injuries, at least initially, and the presumed cause of death was starvation due to entanglement in a fishing net.
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  • 文章类型: Journal Article
    抗苗勒管激素(AMH)是预测代表卵巢储备的原始卵泡的间接标志物。在这项研究中,使用AMH和年龄来预测家猫卵巢储备的可能性。从进行常规卵巢子宫切除术的30只猫收集卵巢和血液。将动物分为三个年龄组:青春期前(<4个月,n=10),成人(1-5岁,n=10),和高年级(>5岁,n=10)。在手术时收集血液用于使用AMHGenIIELISA试剂盒进行血清AMH测量。试验内变异系数(CV)和试验间变异系数分别为3.56%和7.68%,分别。对卵巢的一侧进行处理以使用免疫组织化学和卵泡的组织学计数来确定AMH定位。这是黄金标准。通过Western印迹分析从对侧卵巢定量AMH蛋白的表达。原始卵泡与年龄成反比关系最明显(rho=-0.779,P<0.05),与血清AMH浓度呈正相关(rho=0.490,P<0.05),表明年龄和AMH都是指示原始卵泡的潜在标志物。此外,次级(rho=0.651,P<0.05)和小的窦卵泡(rho=0.648,P<0.05)被确定为循环AMH的主要来源,与初级卵泡相比,与血清AMH浓度的相关性更强。然而,AMH蛋白的表达与其他因素无显著相关性,包括年龄,原始卵泡,初级卵泡,次级卵泡,小的窦卵泡,和血清AMH浓度。建立血清AMH浓度(AIC=672.66,P<0.05)和年龄(AIC=668.93,P<0.05)预测原始卵泡数的模型。总之,血清AMH浓度和年龄均可作为家猫卵巢储备的可比标志。此外,AMH在没有年龄信息的情况下特别有用。
    Anti-Müllerian hormone (AMH) serves as an indirect marker for predicting primordial follicles that are representative of ovarian reserve. In this study the possibility of using AMH and age to predict the ovarian reserve in domestic cats. Ovaries and blood were collected from 30 cats undergoing routine ovariohysterectomy. The animals were divided into three age groups: prepubertal (<4 mo, n = 10), adult (1-5 y, n = 10), and senior (>5 y, n = 10). Blood was collected at surgery for serum AMH measurements using the AMH Gen II ELISA kit. The intra-assay coefficient of variation (CV) and inter-assay CV were 3.56 % and 7.68 %, respectively. One side of the ovary was processed to determine AMH localization using immunohistochemistry and for a histological count of follicles, which is the gold standard. The expression of AMH protein was quantified from the contralateral ovary by Western blot analysis. Primordial follicles exhibited the most pronounced inverse relationship with age (rho = -0.779, P < 0.05), followed by a positive association with serum AMH concentration (rho = 0.490, P < 0.05), indicating that both age and AMH are potential markers indicative of primordial follicles. Furthermore, secondary (rho = 0.651, P < 0.05) and small antral follicles (rho = 0.648, P < 0.05) were identified as the major sources of circulating AMH, as indicated by the stronger correlation with serum AMH concentrations compared with primary follicles. However, there was no significant correlation between the expression of AMH protein and other factors, including age, primordial follicles, primary follicles, secondary follicles, small antral follicles, and serum AMH concentration. A model for predicting primordial follicle number using serum AMH concentration (AIC = 672.66, P < 0.05) and age (AIC = 668.93, P < 0.05) was established. In conclusion, both serum AMH concentration and age may serve as comparable markers of ovarian reserve in domestic cats. Moreover, AMH is particularly useful in situations where age information is not available.
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