stillborn

死产
  • 文章类型: Case Reports
    我们介绍了一例25岁女性的罕见病例,该女性在足月分娩死胎四天后出现特发性门静脉高压和腹水。她以前没有肝病或门静脉血栓形成的危险因素。调查显示门静脉扩张,食管静脉曲张,和高血清白蛋白梯度腹水,所有这些都指向门脉高压的窦前病因。没有肝硬化的迹象,肝或门静脉血栓形成,代谢性或自身免疫性肝病,或持续性感染。她接受了抗生素治疗,利尿剂,和β受体阻滞剂,她接受了治疗性穿刺.她的门静脉高压症的病因仍未确定。特发性门静脉高压是一种病因不明的罕见疾病,特征为无肝硬化或血栓形成的门静脉高压症。它与几个危险因素和组织学异常有关,它可能伴随着门静脉高压的后果,如静脉曲张出血和腹水。诊断是根据临床标准和消除门脉高压的其他原因进行的。管理主要是有症状的,打算避免和治疗门静脉高压的后果。预后根据潜在的病因和并发症的存在而变化。
    We present a rare case of a 25-year-old woman who developed idiopathic portal hypertension and ascites four days after delivering a stillborn child at term. She had no previous liver illness or risk factors for portal vein thrombosis. Investigations revealed a dilated portal vein, esophageal varices, and high serum-albumin gradient ascites, all of which point to a presinusoidal etiology of portal hypertension. There was no indication of cirrhosis, hepatic or portal vein thrombosis, metabolic or autoimmune liver diseases, or persistent infections. She was treated with antibiotics, diuretics, and beta-blockers, and she underwent a therapeutic paracentesis. The etiology of her portal hypertension remains undetermined. Idiopathic portal hypertension is a rare condition of unknown etiology, characterized by portal hypertension without cirrhosis or thrombosis. It is linked to several risk factors and histological abnormalities, and it can be accompanied by portal hypertension consequences, such as variceal hemorrhage and ascites. The diagnosis is made using clinical criteria and the elimination of alternative causes of portal hypertension. Management is mostly symptomatic, intending to avoid and treat portal hypertension consequences. The prognosis varies according to the underlying etiology and presence of complications.
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  • 文章类型: Journal Article
    这项研究确定了在第0天针对新孢子虫的血清学频率,以及在韦拉克鲁斯州中部地区的牛水牛系统中,在整个Bubalusbubalis雌性妊娠期间所调查的N.caninumDNA的存在,墨西哥。在6个不同的采样周期中从11名雌性中采集血液样品,并在第0天分析犬奈瑟菌抗体检测。在所有采样周期进行通过PCR的DNA检测。通过超声检查记录女性的妊娠月份,为期五个月。以及出生和怀孕损失。记录的试剂DNA的血清阳性和阳性分别为90.9%(95%CI58.7-9.7)和36.3%(95%CI10.9-69.2),分别,在零日。在观察的五个三个月中,检测到的犬N.caninumDNA在18.1%(95%CI2.3-51.7)和45.4%(95%CI16.7-76.6)之间,记录了三次分娩和三次堕胎。所研究的水牛种群中存在较高的犬氏杆菌抗体;然而,在女性中,犬奈瑟菌DNA的检测保持在47%以下。仅在孕妇的DNA检测中观察到关联(P0.007)。我们的结果支持以下假设:水牛对感染的抵抗力以及即使在墨西哥该生产系统中描述的感染和再感染的可能性很高的情况下,也会出现抗N.caninum感染的临床症状。
    This study establishes the serological frequency against Neospora caninum on day zero and the presence of N. caninum DNA surveyed throughout the gestation of Bubalus bubalis females in a bovine buffalo system in the central zone of the state of Veracruz, Mexico. Blood samples were taken from 11 females in 6 different sampling periods and analyzed for N. caninum antibodies detection on day zero. DNA detection by PCR was performed on all sampling periods. The gestation months of the females were recorded for five trimesters by ultrasonography, as well as births and pregnancy losses. Recorded seropositivity and positivity for agent DNA were 90.9% (95% CI 58.7-9.7) and 36.3% (95% CI 10.9-69.2), respectively, on day zero. N. caninum DNA was detected between 18.1% (95% CI 2.3-51.7) and 45.4% (95% CI 16.7-76.6) over the five trimesters of observation, with three births and three abortions recorded. The studied water buffalo population had a high presence of N. caninum antibodies; however, the detection of N. caninum DNA remained below 47% in the females. The association was only observed in the detection of DNA with pregnant females (P 0.007). Our results support the hypothesis of the resistance of water buffaloes to infection and the onset of clinical signs against infection by N. caninum even upon a high possibility of infection and reinfection described in this production system in Mexico.
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  • 文章类型: Journal Article
    Rhinoceros species range from near threatened to critically endangered due to habitat loss and poaching. A sustainable ex situ breeding population is critically important to maintain genetic diversity and help ensure the survival of the species; however, not all populations under human care are self-sustaining. While rhinoceros reproductive physiology and pathology have been well studied, there is still a paucity of information describing the normal parameters of parturition and neonatal landmarks. Using video recordings, medical records, and keeper logs, we reviewed and compared data regarding the parturition of three rhinoceros species (black rhinoceros (BR) (Diceros bicornis), n = 4; greater one-horned rhinoceros (GOHR) (Rhinoceros unicornis), n = 21; and southern white rhinoceros (SWR) (Ceratotherium simum simum), n = 22) managed under human care in the United States. Using equine parameters as a model for comparison, we compiled the following data: the signs of impending parturition, durations of the parturition phases, calving presentation, frequency of dystocia or stillbirth, and time from birth to neonatal landmarks. Data from 47 births, including 26 videos, were examined. The durations of parturition phases I, II, and III had median lengths of 153 min (n = 18), 28 min (n = 21), and 205 min (n = 15), respectively. Anterior presentation of the calf was observed in 59% births, whereas posterior presentation occurred in 41% births. Posterior calving presentation was associated with a longer phase II of parturition (p = 0.04), although more data are needed to determine whether the posterior presentation of the calf carries a higher risk for stillbirth. Most (83%) stillbirths occurred in GOHR, indicating that this species might be at a higher risk for stillbirth compared to SWR (17%) (p = 0.07). The median time from birth to the calf standing was longer in the GOHR (64 min) compared to the SWR (30 min) (p = 0.02). Detailed descriptions of the parturition parameters and neonatal landmarks in rhinoceros will aid facilities with rhinoceros breeding programs to recognize abnormalities in the parturient or post-partum periods and guide indications for veterinary intervention.
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  • 文章类型: Journal Article
    妊娠糖尿病(GDM)是一种常见的代谢紊乱,与不良妊娠结局有关。最近的研究表明,HbA1c在检测妊娠早期的母体血糖方面是可靠的,但可能低估了妊娠晚期至妊娠晚期的葡萄糖耐受不良。因此,可以合理地假设患有GDM的母亲,尽管妊娠晚期HbA1c水平明显正常,可能会产生具有特征性特征的婴儿,这些特征常见于血糖控制不佳的糖尿病母亲的婴儿。这项研究旨在描述一系列尸检病例,涉及在妊娠晚期将死产或死亡的新生儿交付给被诊断为GDM且在分娩时或分娩前后HbA1c水平正常的母亲。主要重点是识别和记录这一系列病例中通常与血糖控制欠佳的“糖尿病母亲婴儿”相关的特征。
    我们对我们机构的尸检报告进行了为期7.5年的回顾性审查。该研究包括符合以下标准的病例:(1)死产或在新生儿早期死亡的婴儿,在妊娠晚期分娩;(2)被诊断为GDM的母亲;(3)在分娩时或分娩前后的正常母体HbA1c水平≤6.1%;(4)出生体重或股骨长度超过胎龄第90百分位数;(5)没有遗传畸变。我们还检查了这些病例与糖尿病母亲的婴儿相关的其他特征。\"
    十个尸检病例符合我们的纳入标准,包括9例死产和1例新生儿死亡。分娩时的妊娠年龄为32至39周(平均:35.7周)。在所有情况下,股骨长度超过第90百分位数,6例出生体重高于第90百分位数。6例出现浮肿相。在包括内部检查在内的完整尸检的9例中,6表现出过量的脂肪组织,4有心脏肥大,3显示胰岛增生。7例检出缺氧缺血性脑病。没有发现结构异常。
    我们的研究结果表明,妊娠晚期HbA1c水平明显正常的母亲所生的胎儿和新生儿仍然可以表现出通常在血糖控制不佳的糖尿病母亲婴儿中观察到的特征。也被称为“糖尿病母亲的婴儿”。“这项研究强调了孕晚期孕妇HbA1c测量可能低估孕妇血糖及其对胎儿发育的影响,以及糖尿病母亲婴儿特征的后续表现。\"
    UNASSIGNED: Gestational diabetes mellitus (GDM) is a common metabolic disorder linked to adverse pregnancy outcomes. Recent research indicates that HbA1c is reliable in detecting maternal glycemia during the first trimester but may underestimate glucose intolerance in the late second to third trimesters. Therefore, it is reasonable to hypothesize that mothers with GDM, despite apparently normal HbA1c levels in the third trimester, may give birth to infants displaying characteristic features often seen in infants of diabetic mothers with suboptimal glycemic control. This study aimed to describe a case series of autopsy cases involving stillborn or deceased neonates delivered in the third trimester to mothers diagnosed with GDM and having normal HbA1c levels at or around the time of delivery. The primary focus was on identifying and documenting the characteristic features commonly associated with \"infants of diabetic mothers\" with suboptimal glycemic control in this series of cases.
    UNASSIGNED: We conducted a retrospective review of autopsy reports from our institution spanning 7.5 years. The study included cases that met the following criteria: (1) stillborn or infants who died in the early neonatal period, delivered in the third trimester; (2) mothers diagnosed with GDM; (3) normal maternal HbA1c levels of ≤6.1% at or around the time of delivery; (4) birthweight or femoral length exceeding the 90th percentile for gestational age; and (5) absence of genetic aberrations. We also examined these cases for other characteristic features associated with \"infants of diabetic mothers.\"
    UNASSIGNED: Ten autopsy cases met our inclusion criteria, including 9 stillbirths and 1 neonatal death. Gestational age at delivery ranged from 32 to 39 weeks (mean: 35.7 weeks). Femoral length exceeded the 90th percentile in all cases, and 6 cases had birthweights above the 90th percentile. Puffy facies were observed in 6 cases. Among the 9 cases with complete autopsies including internal examination, 6 exhibited excess adipose tissue, 4 had cardiomegaly, and 3 showed pancreatic islet hyperplasia. Hypoxic-ischemic encephalopathy was detected in 7 cases. No structural abnormalities were noted.
    UNASSIGNED: Our findings demonstrated that fetuses and neonates born to mothers with apparently normal HbA1c levels in the third trimester could still display characteristic features commonly observed in infants of diabetic mothers with poor glycemic control, also known as \"infants of diabetic mothers.\" This study underscores the potential of third-trimester maternal HbA1c measurements to underestimate maternal glycemia and its consequential impact on fetal development, as well as the subsequent manifestation of features of \"infants of diabetic mothers.\"
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  • 文章类型: Journal Article
    22q11.2微缺失及其相关条件可能会影响生殖结果,但关于这一重要领域的信息有限。我们调查了368名具有典型22q11.2缺失的成年人的生殖结果(中位年龄32.8,范围17.9-76.3岁;195名女性),没有中度-重度智力障碍,他们被前瞻性地跟踪。我们检查了所有生殖结果以及作为传播父母的诊断对这些结果的可能影响。我们使用逻辑回归来调查与生殖适应性(活体后代)相关的因素。63例(17.1%)妊娠结局为157例,其中94例(60.3%)涉及活产。在涉及某种形式的损失的其余部分中,有7例(5.77%)死胎,显著大于人口标准(p<0.0001)。35人(55.6%),22q11.2缺失综合征(22q11.2DS)的诊断跟随后代的诊断,在该传播父母亚组中,患有严重先天性心脏病(CHD)的个体不成比例地减少。回归模型表明,主要冠心病,除了先前确定的因素,是生殖适应性降低的显著独立预测因子。有证据表明持续的诊断延迟和有限的产前基因检测。研究结果表明,妊娠丢失是22q11.2DS成人的重要健康问题。CHD和/或其缺失是生殖结果研究中需要考虑的因素。有必要进行进一步的研究,以更好地了解可能导致生殖结果的因素,包括技术进步。结果表明,需要持续努力为22q11.2DS的个人提供最佳教育和支持,和他们的临床医生,围绕生殖问题和早期诊断。
    The 22q11.2 microdeletion and its associated conditions could affect reproductive outcomes but there is limited information on this important area. We investigated reproductive outcomes in a sample of 368 adults with typical 22q11.2 deletions (median age 32.8, range 17.9-76.3 years; 195 females), and without moderate-severe intellectual disability, who were followed prospectively. We examined all reproductive outcomes and possible effects of diagnosis as a transmitting parent on these outcomes. We used logistic regression to investigate factors relevant to reproductive fitness (liveborn offspring). There were 63 (17.1%) individuals with 157 pregnancy outcomes, 94 (60.3%) of which involved live births. Amongst the remainder involving a form of loss, were seven (5.77%) stillbirths, significantly greater than population norms (p < 0.0001). For 35 (55.6%) individuals, diagnosis of 22q11.2 deletion syndrome (22q11.2DS) followed diagnosis of an offspring, with disproportionately fewer individuals had major congenital heart disease (CHD) in that transmitting parent subgroup. The regression model indicated that major CHD, in addition to previously identified factors, was a significant independent predictor of reduced reproductive fitness. There was evidence of persisting diagnostic delay and limited prenatal genetic testing. The findings indicate that pregnancy loss is an important health issue for adults with 22q11.2DS. CHD and/or its absence is a factor to consider in reproductive outcome research. Further studies are warranted to better appreciate factors that may contribute to reproductive outcomes, including technological advances. The results suggest the need for ongoing efforts to provide optimal education and supports to individuals with 22q11.2DS, and their clinicians, around reproductive issues and early diagnosis.
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  • 文章类型: Journal Article
    背景:国际上,据报道,国家SARS-CoV-2相关封锁对死胎率的潜在影响,但是德国的数据,包括胎儿妊娠结局的危险因素,缺乏。这项研究的目的是在巴伐利亚大型队列中比较2020年两个首次封锁期与2010年至2019年的前几年的死胎率。
    方法:本研究是对2010年至2020年巴伐利亚围产期数据的二次分析,其中包括349,245例分娩。进行了单变量和多变量回归分析,以调查与2010年至2019年相应时期相比,2020年两次巴伐利亚封锁对死胎率的影响。
    结果:在第一次锁定期间,死胎率明显高于参考期(4.04vs.每1000名新生儿中有3.03例死胎;P=0.03)。经季节性和长期趋势调整后,不再观察到这种效应(P=0.2).在第二次封锁期间,死胎率在单变量中没有差异(3.46与每1000例新生儿中有2.93例死胎;P=0.22)以及多变量分析(P=0.68),与2010年至2019年相比。
    结论:在调整已知的长期影响后,在这项研究中,我们没有发现巴伐利亚两次禁产对死产率有影响的证据.
    Internationally, potential effects of national SARS-CoV-2-related lockdowns on stillbirth rates have been reported, but data for Germany, including risk factors for fetal pregnancy outcome, are lacking. The aim of this study is to compare the stillbirth rates during the two first lockdown periods in 2020 with previous years from 2010 to 2019 in a large Bavarian cohort.
    This study is a secondary analysis of the Bavarian perinatal data from 2010 to 2020, including 349,245 births. Univariate and multivariable regression analyses were performed to investigate the effect of two Bavarian lockdowns on the stillbirth rate in 2020 compared to the corresponding periods from 2010 to 2019.
    During the first lockdown, the stillbirth rate was significantly higher compared to the reference period (4.04 vs. 3.03 stillbirths per 1000 births; P = 0.03). After adjustment for seasonal and long-term trends, this effect can no longer be observed (P = 0.2). During the second lockdown, the stillbirth rate did not differ in univariate (3.46 vs. 2.93 stillbirths per 1000 births; P = 0.22) as well as in multivariable analyses (P = 0.68), compared to the years 2010 to 2019.
    After adjustment for known long-term effects, in this study we did not find evidence that the two Bavarian lockdowns had an effect on the rate of stillbirths.
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  • 文章类型: Journal Article
    对已发表的数据进行了分析,分析了在围生学中使用验尸放射研究的可能性,并介绍了自己对死胎和新生儿尸体进行的影像学研究的结果。尸检放射研究对死胎和死亡新生儿的鉴别诊断的可能性,评估浸渍的严重程度和胎儿宫内死亡的时间,检测脑和脊髓的病理变化,呼吸和消化器官,在心血管和泌尿系统中得到证实。结论尸检CT对骨骼的研究具有较高的诊断效能,浆膜腔中的游离液体积聚以及死亡胎儿和死亡新生儿的血管和组织中的气体。死后MRI的优点是更有效地显示内部器官和软组织,允许评估它们的地形和大小,以及识别广泛的病理变化。为了全面客观地分析死胎和死亡新生儿的身体,需要同时使用两种成像方法(CT和MRI)。同时,应将乳腺放射学作为全面病理研究的一部分,但不能代替传统的尸检.
    Analysis of published data on the possibilities of using postmortem radiation studies in perinatology is carried out and the results of own thanatoradiological studies of the bodies of dead fetuses and newborns are presented. The possibilities of postmortem radiation studies for differential diagnosis of stillborn and deceased newborns, evaluation of the severity of maceration and the time of intrauterine fetal death, detection of pathological changes in the brain and spinal cord, respiratory and digestive organs, in the cardiovascular and urinary systems were demonstrated. It is concluded that postmortem CT has a high diagnostic efficiency in the study of the bone skeleton, free fluid accumulations in serous cavities and gas in the vessels and tissues of dead fetuses and deceased newborns. The advantage of postmortem MRI is more effective visualization of internal organs and soft tissues, which allows assessing their topography and size, as well as identifying a wide range of pathological changes. For a comprehensive objective analysis of the bodies of stillborn and deceased newborns, combined use of both imaging methods (CT and MRI) is required. At the same time, thanatoradiology should be used as a part of a comprehensive pathological study, but not as a substitute for traditional autopsy.
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  • 文章类型: Journal Article
    建议减少最后一餐的消耗和开始分娩之间的间隔,以增加分娩期间母猪可用的能量,有可能减少分娩时间和缓解仔猪出生。本研究旨在检查在标准生产时间(0700至1500小时)内从1个饲料增加到2个饲料的喂养频率是否会产生产仔持续时间和/或死胎数量的差异。从进入分娩箱(110±1d妊娠)到分娩(116±1d妊娠),多胎母猪(n=118)每天喂食固定量的饲料,无论是在0800小时一次,还是在0800和1300小时两餐。在分娩箱的入口和出口记录母猪的体重和背脂肪深度。分娩后24小时和哺乳第21天记录凋落物的大小和重量。两次饲喂的母猪分娩时间比一次饲喂的母猪短,死产仔猪少(2.21±0.56hvs.3.25±0.52h;P=0.001)。处理与产仔时间的相互作用表明,两次饲喂母猪的产仔时间减少,死胎率显着低于一次饲喂母猪或两次饲喂更长产仔时间的母猪(P<0.001)。这些发现表明,在farrow之前增加喂食频率可以减少某些母猪的产仔时间和死胎数量,然而,一些母猪保持高死胎率,无论喂食频率。仔猪平均日增重在一次喂养的母猪中更大,但是在随后的分娩中,这些母猪中的少数仍留在牛群中。Further,随后的总出生和活产在两次喂养的母猪中更高。以更高的频率喂养母猪可以改善某些母猪的分娩性能,并可以增加母猪在牛群中的寿命。
    Reducing the interval between the consumption of the last meal and the start of farrowing is suggested to increase the energy available to sows during farrowing, potentially reducing the farrowing duration and easing piglet births. The present study aimed to examine whether increasing feeding frequency from one to two feeds within standard production hours (0700 to 1500 hours) would produce a difference in farrowing duration and/or stillborn numbers. From entry to farrowing crates (110 ± 1 d gestation) to farrowing (116 ± 1 d gestation), multiparous sows (n = 118) were fed a daily fixed amount of feed either once at 0800 hours or in two meals at 0800 and 1300 hours. Sow weights and backfat depths were recorded on entry and exit from the farrowing crate. Litter size and weight were recorded 24 h after farrowing and on day 21 of lactation. Sows fed twice had a shorter farrowing duration and fewer stillborn piglets than those fed once (2.21 ± 0.56 h vs. 3.25 ± 0.52 h; P = 0.001). The interaction between treatment and farrowing duration showed that sows fed twice have a reduced farrowing duration and had significantly lower stillborn rates than those fed once or those fed twice with longer farrowing durations (P < 0.001). These findings suggest that increasing feeding frequency prior to farrow can reduce the farrowing duration and stillborn numbers in some sows, however, some sows remain with a high stillborn rate regardless of feeding frequency. Piglet average daily gain was greater in once-fed sows, but fewer of these sows remained in the herd at subsequent farrowing. Further, subsequent total born and born alive were higher in twice-fed sows. Feeding sows at a higher frequency can improve farrowing performance in some sows and could increase the longevity of the sow in the herd.
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  • 文章类型: Journal Article
    这项研究旨在比较接受晚期妊娠丢失(n=5)与年龄匹配的健康对照(n=5)的珍妮的超声特征和类固醇浓度。每隔15天进行一次经直肠超声检查子宫和胎盘厚度(CTUP)和胎儿眼球直径。胎儿心跳,主动脉,每30天通过经腹超声检查确定胸部直径。每次经直肠超声检查同时收集血样以确定孕激素和雌二醇的浓度。使用Shapiro-Wilks评估数据的正常性。对数据进行对数转换并用混合模型进行分析。使用Kruskal-Wallis分析非正态分布数据。基于分布,使用Sidák\或Dunn\的测试进行了事后分析。组间妊娠长度比较采用t检验。统计学显著性设定为P<0.05。经历妊娠失败的珍妮的妊娠长度较短(345±32.3vs.365.4±10.4dP=.0009)。胎龄增加(P<.0001)和妊娠丢失组(P=.004)具有更大的CTUP测量值,它们之间存在相互作用(P=.01)。胎儿眼球直径随孕龄增加(P<0.0001),但不随孕组变化(P=0.26),孕龄和组之间没有交互作用(P=0.71)。胎儿主动脉和胸部直径随胎龄增加(P<0.0001),但孕龄与组之间的交互作用仅与胸部直径有关(P=.01).对主动脉(P=0.78)或胸(P=0.86)直径没有发现组的影响。组(P=.06)和胎龄(P=.07)倾向于与胎儿心跳增加有关,但它们之间没有相互作用(P=0.98)。胎龄没有影响(P=0.31),组(P=0.19),或它们之间的相互作用对孕激素浓度(P=.21)。雌二醇浓度不受胎龄(P=0.76)或组(P=0.51)的影响。总之,晚期妊娠丢失与驴CTUP测量值增加相关.
    This study aimed to compare ultrasonographic features and steroid concentrations of jennies undergoing late-term pregnancy loss (n = 5) with gestationally age-matched health controls (n = 5). Transrectal ultrasonography of the combined thickness of uterus and placenta (CTUP) and fetal eyeball diameter was carried out at 15-day-intervals. Fetal heartbeat, aortic, and thorax diameters were determined by transabdominal ultrasonography at 30-day-intervals. Blood samples were collected simultaneous with each transrectal ultrasonography to determine progestogen and estradiol concentrations. Data were assessed for normality with Shapiro-Wilks. Data were log-transformed and analyzed with a mix model. Non-normally distributed data were analyzed with Kruskal-Wallis. Post-hoc analyzes were performed with Sidák\'s or Dunn\'s tests based on distribution. Gestational length between groups was compared with a t-test. Statistical significance was set at P < .05. The gestational length was shorter in jennies experiencing pregnancy loss (345 ± 32.3 vs. 365.4 ± 10.4 d P = .0009). Increasing gestational age (P < .0001) and pregnancy loss group (P = .004) had greater CTUP measurements with an interaction between them (P = .01). Fetal eyeball diameter increased with gestational age (P < .0001) but did not vary with group (P = .26), and there was no interaction between gestational age and group (P = .71). Fetal aortic and thorax diameters increased with gestational age (P < .0001), but an interaction between gestational age and group was only present with thorax diameter (P = .01). No effect of group was found for aortic (P = .78) or thorax (P = .86) diameters. Group (P = .06) and gestational age (P = .07) tended to be associated with an increased fetal heartbeat, but there was no interaction between them (P = .98). There was no effect of gestational age (P = .31), group (P = .19), or interaction between them for progestogens concentrations (P = .21). Estradiol concentration was not affected by gestational age (P = .76) or group (P = .51). In conclusion, late-term pregnancy loss was associated with increased CTUP measurements in donkeys.
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  • 文章类型: Journal Article
    猪圆环病毒3(PCV-3)与几种猪疾病有关。尽管这种病毒的致病性尚未完全阐明,生殖疾病始终与其感染有关。本工作的目的是分析来自不同妊娠时间点的猪胎儿的组织中PCV-3DNA的存在。胎儿是从没有生殖问题的农场获得的(NRP,n=249;所有这些都来自妊娠的最后三分之一)或屠宰场(S,n=51;妊娠第二至三分之一的49和第三妊娠的2)。收集的组织包括大脑,心,肺,肾,和/或脾脏。总的来说,与妊娠后三分之一的胎儿(69/251,27.5%)相比,妊娠后三分之一的胎儿(5/49,10.2%)检测到PCV-3的频率明显更高,尽管病毒载量没有显著差异.此外,NRP胎儿的检测频率(69/249,27.7%)显着高于S胎儿(5/51,9.8%)。此外,在所分析的所有组织类型中检测到PCV-3DNA。总之,本研究表明,在妊娠后期的胎儿中检测PCV-3DNA的频率更高,并强调了猪胎儿中病毒的广泛器官分布.
    Porcine circovirus 3 (PCV-3) has been associated with several pig diseases. Despite the pathogenicity of this virus has not been completely clarified, reproductive disorders are consistently associated with its infection. The aim of the present work was to analyze the presence of PCV-3 DNA in tissues from pig fetuses from different gestational timepoints. The fetuses were obtained either from farms with no reproductive problems (NRP, n = 249; all of them from the last third of gestation) or from a slaughterhouse (S, n = 51; 49 of the second-third of gestation and 2 from the third one). Tissues collected included brain, heart, lung, kidney, and/or spleen. Overall, the frequency of detection of PCV-3 was significantly higher in fetuses from the last third of the gestation (69/251, 27.5%) when compared to those from the second-third (5/49, 10.2%), although the viral loads were not significantly different. Moreover, the frequency of detection in NRP fetuses (69/249, 27.7%) was significantly higher than in S ones (5/51, 9.8%). Furthermore, PCV-3 DNA was detected in all tissue types analyzed. In conclusion, the present study demonstrates a higher frequency of PCV-3 DNA detection in fetuses from late periods of the gestation and highlights wide organ distributions of the virus in pig fetuses.
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