Growth patterns

生长模式
  • 文章类型: Journal Article
    长度-重量关系(LWR)和相对条件因子被广泛用作推断鱼类生长方式和健康状况的最重要的生物学参数。我们研究的目的是研究Hilsa(Tenualosailisha)不同生长阶段LWR的生长参数,孟加拉国的旗舰物种,并比较其主要栖息地的相对条件因素。对孟加拉国和孟加拉湾各条河流的鱼类进行了采样,我们测量了他们的身长-体重生长参数,并使用其他研究的汇总数据进行统计分析.希尔萨的等距生长模式主要存在于25≤TL(总长度)<30、30≤TL<35和TL≥40的大小类别中。然而,大小等级TL<25显示出负的异速生长与指数的值(B,也称为增长系数)在2.797和2.833之间。Hilsa的最高体重增长在35≤TL<40的大小范围内,整个栖息地的指数值为3.271-3.381(正异速增长)。我们的结果表明,除了30≤TL<35和TL≥40之间,不同大小类别的Hilsa指数值之间存在显着差异(P<0.05);但是,在不同的生境中没有发现如此显著的指数值差异。对于Hilsa的特定尺寸长度-权重回归模型,Akaike信息准则值最低,表明与特定栖息地和合并样本模型相比,它是最适合的模型。根据栖息地发现的Hilsa的相对条件因子顺序为Meghna>孟加拉湾>Andharmanik>Biskhali>Tetulia>Padma。此外,与其他栖息地相比,来自Padma和Tetulia河的Hilsa的相对生理健康状况较差。需要进行更深入的分析,以确定与栖息地质量相关的可能影响希尔萨生长和福祉的因素。本研究结果对渔业生物学家和管理者在理解和解释希尔萨的生态学方面具有重要意义。相同或不同栖息地的种群的相对福祉,人口评估,并在未来更好地管理希尔莎。
    The length-weight relationship (LWR) and relative condition factor are widely used as the most important biological parameters to infer the growth pattern and well-being of fishes. The aim of our study was to investigate the growth parameters of the LWR in different growth phases of Hilsa (Tenualosa ilisha), a flagship species of Bangladesh, and compare its relative condition factors across its major habitats. Fish from various rivers in Bangladesh and the Bay of Bengal were sampled, their length-weight growth parameters were measured and subjected to statistical analysis with pooled data from other studies. An isometric growth pattern in Hilsa was predominantly found in the size classes of 25 ≤ TL (total length) < 30, 30 ≤ TL < 35, and TL ≥ 40. However, the size class TL < 25 showed negative allometric growth with the value of the exponent (b, also known as growth coefficient) between 2.797 and 2.833. The highest weight-growth of Hilsa was within the size class of 35 ≤ TL < 40, with exponent values of 3.271-3.381 (positive allometric growth) across habitats. Our results revealed that the exponent value varied significantly (P < 0.05) between different size classes of Hilsa except between 30 ≤ TL < 35 and TL ≥ 40; however, no such significant differences in the exponent values were found across habitats. The Akaike Information Criterion value was lowest for the size-specific length-weight regression model of Hilsa, indicating it was the best-fit model compared to the habitat-specific and pooled sample models. The relative condition factor of Hilsa by habitat was found in the order of Meghna > Bay of Bengal > Andharmanik > Biskhali > Tetulia > Padma. Additionally, the relative physiological well-being of Hilsa from the river Padma and Tetulia was poor compared to that of other habitats. A more in-depth analysis is required to determine the factors that can influence Hilsa\'s growth and well-being in relation to habitat quality. The present findings have significant relevance for fisheries biologists and managers in understanding and interpreting Hilsa\'s ecology, relative well-being of populations of same or contrasting habitats, demographic assessment, and for better management of Hilsa in the future.
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  • 文章类型: Journal Article
    预测表明,未来气温上升和死区扩大将改变鱼类早期的环境适应性。因此,我们评估了变暖(26°C)的慢性影响,缺氧(<2-2.5mgL-1)或其组合对死亡率的影响,增长,行为,以Atherina长老幼虫为模型物种的能量代谢和氧化应激。在死亡率方面,治疗之间没有差异。加温和缺氧的组合导致更快的体重损失(+22.7%)。变暖,缺氧或其组合增强胆量(+14.7-25.4%),但勘探减少(-95%-121%),冷冻状态下的时间增加(60.6-80.5%)和游泳速度减少(-45.6-50.5%)。此外,常规代谢率在缺氧下或在温暖和缺氧的组合下耗尽(-56.6%和57.2%,分别)。在缺氧下,过氧化氢酶活性增加(+56.3%)表明一定水平的抗氧化防御能力,虽然也观察到DNA损伤增加(+25.2%)。幼虫在所有情况下都表现出维持厌氧代谢稳定的巨大能力,但是当暴露于两种压力源的组合时,有氧代谢得到增强(+19.3%)。综合方法表明,大多数目标反应的变化可以通过氧化应激反应在生理上解释。氧化损伤(脂质过氧化和DNA损伤)增加和抗氧化酶(超氧化物歧化酶和过氧化氢酶)之间相互作用的增加与冷冻状态下时间的增加和游泳活动的减少有关。增长率和胆量。在所有紧张的情况下,幼虫减少了能量消耗行为(例如,勘探和游泳活动减少),可能会稳定或补偿有氧和无氧代谢。尽管是一种活跃的小型中上层鱼,我们得出的结论是,敏感的幼虫阶段表现出复杂的应对策略,以通过行为反应在热和低氧压力下适应生理环境。
    Forecasts indicate that rising temperatures towards the future and the expansion of dead zones will change environmental suitability for fish early stages. Therefore, we assessed the chronic effects of warming (26 °C), hypoxia (<2-2.5 mg L-1) or their combination on mortality rate, growth, behaviour, energy metabolism and oxidative stress using Atherina presbyter larvae as a model species. There were no differences between the treatments in terms of mortality rate. The combination of warming and hypoxia induced faster loss of body mass (+22.7%). Warming, hypoxia or their combination enhanced boldness (+14.7-25.4%), but decreased exploration (-95%-121%), increased the time in frozen state (+60.6-80.5%) and depleted swimming speed (-45.6-50.5%). Moreover, routine metabolic rate was depleted under hypoxia or under the combination of warming and hypoxia (-56.6 and 57.2%, respectively). Under hypoxia, increased catalase activity (+56.3%) indicates some level of antioxidant defence capacity, although increased DNA damage (+25.2%) has also been observed. Larvae also exhibited a great capacity to maintain the anaerobic metabolism stable in all situations, but the aerobic metabolism is enhanced (+19.3%) when exposed to the combination of both stressors. The integrative approach showed that changes in most target responses can be explained physiologically by oxidative stress responses. Increased oxidative damages (lipid peroxidation and DNA damage) and increased interaction between antioxidant enzymes (superoxide dismutase and catalase) are associated to increased time in frozen state and decreased swimming activity, growth rates and boldness. Under all stressful situations, larvae reduced energy-consuming behaviours (e.g. depleted exploration and swimming activity) likely to stabilize or compensate for the aerobic and anaerobic metabolisms. Despite being an active small pelagic fish, we concluded that the sensitive larval phase exhibited complex coping strategies to physiologically acclimate under thermal and hypoxic stress via behavioural responses.
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  • 文章类型: Journal Article
    背景:关于口腔裂幼儿如何随着时间的推移而成长,人们知之甚少。
    目的:研究美国口面裂儿童0-36个月大的纵向生长模式。
    方法:回顾性队列研究。
    方法:唇裂(CL)儿童,唇腭裂(CLP)纳入2010-2019年间住院时年龄<36个月的腭裂(CP)(N=1334)。这里是一家美国三级保健儿童医院,有一个为5个州提供服务的裂口中心。
    方法:年龄体重z评分(WAZ)和年龄长度z评分(LAZ)。
    方法:使用广义线性混合模型对纵向生长模式进行表征,以估计0至36月龄的平均WAZ和LAZ。
    结果:唇裂婴儿在生命的前3到4个月内生长显著减慢,CL和CP一直到12个月大,CLP一直到36个月大,都随着追赶增长而反弹。当比较人口时,与世卫组织标准相比,患有任何类型唇裂的儿童均表现出低于标准的生长.与具有CL的患者相比,具有CLP和CP的患者的增长缺陷更为常见。组内系数(ICC)表明,WAZ的大部分变异性(65%)在个体之间,而35%在个体内。LAZ的ICC显示,LAZ的大部分变异性(74%)在个体之间,而26%在个体内。可归因于裂隙类型和/或合并症的变异比例占WAZ和LAZ变异的不到5%。有合并症的儿童的WAZ和LAZ低于无合并症的儿童,有裂隙和WHO标准。
    结论:患有CLP和CP的婴儿,裂隙加合并症的不良增长率高于CL的同行,没有合并症,分别。
    BACKGROUND: Little is known about how young children with orofacial cleft grow over time.
    OBJECTIVE: To characterize longitudinal growth patterns from ages 0 to 36 months in US children with an orofacial cleft.
    METHODS: A retrospective cohort study.
    METHODS: Children with cleft lip, cleft lip and palate, or cleft palate who were younger than age 36 months at a hospital encounter between 2010 and 2019 (N = 1334) were included. The setting was a US tertiary care children\'s hospital with a cleft center that serves a 5-state region.
    METHODS: Weight-for-age z scores (WAZ) and length-for-age z scores (LAZ).
    METHODS: Longitudinal growth patterns were characterized using generalized linear mixed models to estimate mean WAZ and LAZ from age 0 to 36 months.
    RESULTS: Growth in infants with cleft slowed dramatically during the first 3 to 4 months of life, rebounded with catch-up growth until age 12 months for cleft lip and cleft palate and until age 36 months for cleft lip and palate. When comparing populations, children with any type of cleft demonstrated subpar growth compared with World Health Organization standards. Growth deficits were more common in those with cleft lip and palate and cleft palate compared with those with cleft lip. The intraclass coefficient showed that most of the variability in the WAZ (65%) was between individuals, whereas 35% was within an individual. The intraclass coefficient for LAZ showed that most of the variability in the LAZ (74%) was between individuals, whereas 26% was within an individual. The proportion of variance attributable to cleft type and/or comorbidities accounted for <5% of the variance for WAZ and LAZ. WAZ and LAZ were lower in children with comorbidities than those without comorbidities with cleft and World Health Organization standards.
    CONCLUSIONS: Infants with cleft lip and palate, cleft palate, and a cleft with comorbidities have higher rates of poor growth than peers with cleft lip and a cleft with no comorbidities, respectively.
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  • 文章类型: Journal Article
    目的:评估最大吸气(MIP)和呼气(MEP)压力,这反映了呼吸肌的力量,在具有不同生长模式的骨骼II类患者中(水平,平均,和垂直),并将它们与气道尺寸相关联。
    方法:将寻求正畸治疗的II类骨骼基础患者分为以下组:平均,水平,和垂直增长模式。对照组(n=14)包括具有I类骨骼基础和平均生长模式的患者。使用锥形束计算机断层扫描扫描获得气道尺寸,使用带有压力传感器的肺活量计评估MIP和MEP。还进行了常规肺活量测定以评估肺功能。
    结果:研究组的最大吸气和呼气压力与对照组相比无显著差异。与研究组相比,I类患者的口咽和鼻咽气道容积明显更大。各组间气道的最小横截面面积没有观察到显著差异。观察到最大吸气压力与气道容积之间的弱正相关。
    结论:虽然I类患者表现出显著更大的口咽和鼻咽气道容积,不同生长方式的II类患者与I类对照组之间的呼吸肌力量或气道功能没有显着差异。这些发现强调了探索颅面生长模式以外可能导致睡眠相关呼吸障碍的因素的重要性。
    OBJECTIVE: To evaluate maximal inspiratory (MIP) and expiratory (MEP) pressures, which are reflective of respiratory muscle strength, in skeletal Class II patients with different growth patterns (horizontal, average, and vertical) and to correlate those with airway dimension.
    METHODS: Patients with a Class II skeletal base seeking orthodontic treatment were assigned to the following groups: average, horizontal, and vertical growth pattern. The control group (n = 14) comprised patients with a Class I skeletal base and average growth pattern. Airway dimensions were obtained using cone-beam computed tomography scans, and a spirometer with a pressure transducer was used for assessment of MIP and MEP. Routine spirometry for assessment of lung function was also performed.
    RESULTS: No significant differences were found in maximal inspiratory and expiratory pressures for the study groups in comparison with the control group. Class I patients had significantly greater oropharyngeal and nasopharyngeal airway volumes compared with the study groups. No significant difference in minimal cross-section area of the airway was observed among groups. A weak positive correlation between maximal inspiratory pressure and airway volume was observed.
    CONCLUSIONS: Although Class I patients displayed significantly greater oropharyngeal and nasopharyngeal airway volumes, there was no significant difference in respiratory muscle strength or airway function between Class II patients with different growth patterns and the Class I control group. The findings underscore the significance of exploring factors beyond craniofacial growth patterns that may contribute to sleep-related breathing disorders.
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  • 文章类型: Journal Article
    虽然儿童成长评估是儿科实践的基础,日益复杂的临床表现会使生长模式的解释复杂化。此实践点使用代表性案例研究来说明对常见增长模式的解释和响应的关键特征。对这些常见模式及其病因的认识将增强临床医生做出适当反应的能力,并将生长障碍的诊断不足或过度诊断的风险降至最低。
    While child growth evaluation is fundamental to paediatric practice, an increasingly complex clinical picture can complicate interpretation of growth patterns. This practice point uses representative case studies to illustrate key features of interpretation and response to commonly encountered growth patterns. Awareness of these common patterns and their etiologies will enhance the clinician\'s ability to respond appropriately and minimize the risk for under- or over-diagnosis of growth impairment.
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  • 文章类型: Journal Article
    随着野生黄芪(WA)资源的枯竭,仿野生黄芪(IWA)和栽培黄芪(CA)已成为黄芪的主要产品。然而,三种生长方式的质量差异(WA,IWA,CA)和不同生长年限的黄芪尚未得到充分表征,导致缺乏必要的科学证据来代替WA。
    我们创新性地提出了一种包含性状的多维评价方法,微观结构,细胞壁成分,糖类,和药效学化合物,全面解释黄芪不同生长方式和不同年份的品质差异。
    我们的研究表明,IWA和WA的质量相对相似,包括表观颜色等评价指标,截面结构和气味,Phellem的厚度,血管的直径和数量,韧皮部和木质部的形态,以及纤维素的含量和比例,半纤维素,木质素,蔗糖,淀粉,水溶性多糖,总皂苷。然而,蔗糖的含量,淀粉和山梨糖在CA中显著高于WA,血管的直径和数量,总黄酮含量低于WA,表明CA和WA之间存在显著的质量差异。因此,我们建议使用IWA代替CA代替WA。至于IWA的种植年份,我们的结果表明,1-32岁的IWA可以根据其质量变化分为三个阶段:快速生长期(1-5年),稳定生长期(6-20年),和老年生长期(25-32岁)。其中,6-20岁的IWA表现出一致的多维比较结果,展示了水溶性多糖等关键活性成分的高水平,黄酮类化合物,和皂苷。考虑到IWA的质量和种植费用,我们建议种植者的种植期限为6-8年。总之,我们建立了一种新的多维评价方法来系统地表征黄芪的质量,为黄芪的人工栽培和质量保证提供了新的科学视角。
    UNASSIGNED: With the depletion of wild Astragali Radix (WA) resources, imitated-wild Astragali Radix (IWA) and cultivated Astragali Radix (CA) have become the main products of Astragali Radix. However, the quality differences of three growth patterns (WA, IWA, CA) and different growth years of Astragali Radix have not been fully characterized, leading to a lack of necessary scientific evidence for their use as substitutes for WA.
    UNASSIGNED: We innovatively proposed a multidimensional evaluation method that encompassed traits, microstructure, cell wall components, saccharides, and pharmacodynamic compounds, to comprehensively explain the quality variances among different growth patterns and years of Astragali Radix.
    UNASSIGNED: Our study showed that the quality of IWA and WA was comparatively similar, including evaluation indicators such as apparent color, sectional structure and odor, thickness of phellem, diameter and number of vessels, morphology of phloem and xylem, and the levels and ratios of cellulose, hemicellulose, lignin, sucrose, starch, water-soluble polysaccharides, total-saponins. However, the content of sucrose, starch and sorbose in CA was significantly higher than WA, and the diameter and number of vessels, total-flavonoids content were lower than WA, indicating significant quality differences between CA and WA. Hence, we suggest that IWA should be used as a substitute for WA instead of CA. As for the planting years of IWA, our results indicated that IWA aged 1-32 years could be divided into three stages according to their quality change: rapid growth period (1-5 years), stable growth period (6-20 years), and elderly growth period (25-32 years). Among these, 6-20 years old IWA exhibited consistent multidimensional comparative results, showcasing elevated levels of key active components such as water-soluble polysaccharides, flavonoids, and saponins. Considering both the quality and cultivation expenses of IWA, we recommend a cultivation duration of 6-8 years for growers. In conclusion, we established a novel multidimensional evaluation method to systematically characterize the quality of Astragali Radix, and provided a new scientific perspective for the artificial cultivation and quality assurance of Astragali Radix.
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  • 文章类型: Journal Article
    背景:尽管I期肺腺癌(LUAD)患者的总生存期有希望,其中10-25%的患者在手术后仍然复发。[1]虽然对于I期患者是否需要辅助化疗仍有争议。[2]非黏液性LUAD的IASLC分级系统显示,轻度高级别模式是预后不良的重要指标。[3]其他风险因素,例如,胸膜侵犯,淋巴管浸润,STAS,等。也与预后不良有关。[4-6]仍然缺乏IASLC分级本身或与其他危险因素一起是否可以指导I期患者辅助治疗的使用的证据。在这篇文章中,我们尝试为I期LUAD患者建立多变量复发预测模型,该模型能够确定辅助化疗的候选药物.
    方法:我们回顾性收集了2018.8.1至2018.12.31在我们机构接受肺手术并诊断为肺腺癌pT1-2aN0M0(I期)的患者。临床数据,CT扫描的表现,病理特征,收集驱动基因突变和随访信息.使用非辅助队列进行Cox比例风险回归分析以预测无病生存(DFS),并构建列线图并应用于总队列。采用Kaplan-Meier法比较各组间DFS。通过R版本3.6.3进行统计学分析。
    结果:本研究共纳入913例I期LUAD患者。中位随访时间为48.1个月,4年和5年DFS分别为92.9%和89.6%。65例患者出现复发或死亡。4年DFS为97.0%,94.6%和76.2%,5年期DFS为95.5%,在IASLC等级1、2和3中分别为90.0%和74.1%(p<0.0001)。由单一危险因素定义的高危患者,例如,IASLC3级胸膜侵犯,STAS,切除较少的LN不能从辅助治疗中获益。建立LASSO-COX回归模型,将患者分为高危和低危组。在高危人群中,接受辅助化疗的患者比没有接受辅助化疗的患者有更长的DFS(p=0.024),而在低风险组中,接受辅助化疗的患者的DFS低于未接受辅助化疗的患者(p<0.001).
    结论:IASLC分级是DFS的重要指标,然而,在我们的I期LUAD队列中,它不能指导辅助治疗.生长模式和T指标以及其他危险因素可以确定高危患者是辅助治疗的潜在候选者。包括一些IALUAD期患者。
    Despite promising overall survival of stage I lung adenocarcinoma (LUAD) patients, 10-25 % of them still went through recurrence after surgery. [1] While it is still disputable whether adjuvant chemotherapy is necessary for stage I patients. [2] IASLC grading system for non-mucinous LUAD shows that minor high-grade patterns are significant indicator of poor prognosis. [3] Other risk factors, such as, pleura invasion, lympho-vascular invasion, STAS, etc. are also related to poor prognosis. [4-6] There still lack evidence whether IASLC grade itself or together with other risk factors can guide the use of adjuvant therapy in stage I patients. In this article, we tried to establish a multi-variable recurrence prediction model for stage I LUAD patients that is able to identify candidates of adjuvant chemotherapy.
    We retrospectively collected patients who underwent lung surgery from 2018.8.1 to 2018.12.31 at our institution and diagnosed with lung adenocarcinoma pT1-2aN0M0 (stage I). Clinical data, manifestation on CT scan, pathologic features, driver gene mutations and follow-up information were collected. Cox proportional hazards regression analyses were performed utilizing the non-adjuvant cohort to predict disease free survival (DFS) and a nomogram was constructed and applied to the total cohort. Kaplan-Meier method was used to compare DFS between groups. Statistical analysis was conducted by R version 3.6.3.
    A total of 913 stage I LUAD patients were included in this study. Median follow-up time is 48.1 months.4-year and 5-year DFS are 92.9 % and 89.6 % for the total cohort. 65 patient experienced recurrence or death. 4-year DFS are 97.0 %,94.6 % and 76.2 %, and 5-year DFS are 95.5 %, 90.0 % and 74.1 % in IASLC Grade1, 2 and 3, respectively(p < 0.0001). High-risk patients defined by single risk factors, such as, IASLC grade 3, pleura invasion, STAS, less LN resected could not benefit from adjuvant therapy. A LASSO-COX regression model was built and patients are divided into high-risk and low-risk groups. In the high-risk group, patients underwent adjuvant chemotherapy have longer DFS than those who did not (p = 0.024), while in the low-risk group, patients underwent adjuvant chemotherapy have inferior DFS than those who did not (p < 0.001).
    IASLC grading is a significant indicator of DFS, however it could not guide adjuvant therapy in our stage I LUAD cohort. Growth patterns and T indicators together with other risk factors could identify high-risk patients that are potential candidate of adjuvant therapy, including some stage IA LUAD patients.
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  • 文章类型: Journal Article
    关于脑膜瘤生长特征的知识是开发生物学合理的随访程序所必需的。在这项未经治疗的脑膜瘤的研究中,随后进行了重复的磁共振成像(MRI)扫描,我们研究了生长动力学并探索了与肿瘤生长相关的潜在因素.
    在单中心队列研究中,我们纳入了235例放射学疑似颅内脑膜瘤的成年患者,随访期间至少进行了3次MRI扫描.使用对比增强T1系列的自动算法分割肿瘤,and,如果需要,手动更正。潜在脑膜瘤生长曲线进行统计学比较:线性,指数,线性径向,或者Gompertzian.探索了与生长相关的因素。
    在235名患者中,在中位5年的观察期内进行了1394次MRI扫描。在测试的模型中,Gompertzian生长曲线最好地描述了群体水平上脑膜瘤的生长动力学。59%的肿瘤生长,27%保持稳定,缩小了14%。在观察期间,只有13例患者(5%)接受了手术,手术后被排除在外。诊断时的肿瘤大小,多焦点,随访时间与肿瘤生长有关,而年龄,性别,瘤周水肿的存在,和高信号T2信号不是显著因素。
    未治疗的脑膜瘤遵循Gompertzian生长曲线,这表明MRI之间后续随访间隔的增加和潜在增加一倍似乎在生物学上是合理的,而不是固定的时间间隔。诊断时的肿瘤大小是未来生长的最强预测因子,这表明较小肿瘤的随访间隔可能更长。虽然大多数未经治疗的脑膜瘤生长,很少有人需要手术。
    UNASSIGNED: Knowledge about meningioma growth characteristics is needed for developing biologically rational follow-up routines. In this study of untreated meningiomas followed with repeated magnetic resonance imaging (MRI) scans, we studied growth dynamics and explored potential factors associated with tumor growth.
    UNASSIGNED: In a single-center cohort study, we included 235 adult patients with radiologically suspected intracranial meningioma and at least 3 MRI scans during follow-up. Tumors were segmented using an automatic algorithm from contrast-enhanced T1 series, and, if needed, manually corrected. Potential meningioma growth curves were statistically compared: linear, exponential, linear radial, or Gompertzian. Factors associated with growth were explored.
    UNASSIGNED: In 235 patients, 1394 MRI scans were carried out in the median 5-year observational period. Of the models tested, a Gompertzian growth curve best described growth dynamics of meningiomas on group level. 59% of the tumors grew, 27% remained stable, and 14% shrunk. Only 13 patients (5%) underwent surgery during the observational period and were excluded after surgery. Tumor size at the time of diagnosis, multifocality, and length of follow-up were associated with tumor growth, whereas age, sex, presence of peritumoral edema, and hyperintense T2-signal were not significant factors.
    UNASSIGNED: Untreated meningiomas follow a Gompertzian growth curve, indicating that increasing and potentially doubling subsequent follow-up intervals between MRIs seems biologically reasonable, instead of fixed time intervals. Tumor size at diagnosis is the strongest predictor of future growth, indicating a potential for longer follow-up intervals for smaller tumors. Although most untreated meningiomas grow, few require surgery.
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  • 文章类型: English Abstract
    本研究旨在揭示不同生长方式和年限对防风药材质量的影响。通过比色计对粉末样品的表观颜色进行定量,并计算总颜色值(E~*ab)。prim-O-葡萄糖基西米富净的含量,Cimifugin,4'-O-β-D-葡萄糖基-5-O-甲基维胺醇,sec-O-葡萄糖基乳腺癌,高效液相色谱法(HPLC)同时测定样品中的3'-O-当归酰基乳腺癌。聚类分析,主成分分析,偏最小二乘判别分析,采用Pearson相关分析对粉末色度值和5种成分的含量进行分析。结果表明,样品的E~*ab值依次为野生组<多岁组<一岁组。Cimifugin的内容,sec-O-葡萄糖基乳腺癌,野生组的3\'-O-angeloylhamaudol明显高于多岁和一岁组。多变量统计分析结果显示,多龄组质量差异较大。多年生样品的质量接近野生组,优于一岁组。b~*的投影(VIP)值中的变量重要性,3\'-O-angeloylhamodol含量,E~*ab,L~*均大于1,西米富金含量接近1。E~*ab值与prim-O-葡萄糖基西米富净含量呈负相关,Cimifugin,sec-O-葡萄糖基乳腺癌,和3'-O-angeloylhamaudol,而与4'-O-β-D-葡萄糖基-5-O-甲基维氨醇含量无线性关系。生长方式和年份对防风样品的质量有不同的影响。防风的色度值和5种成分的含量可用于评价防风的质量,3'-O-angeloylhamaudol和cinmifugin可以被认为是防风在生长过程中质量控制的标志。
    This study aims to reveal the effects of different growth patterns and years on the quality of Saposhnikoviae Radix samples. The apparent colors of the powder samples were quantified by a colorimeter, and the total color values(E~*ab) were calculated. The content of prim-O-glucosylcimifugin, cimifugin, 4\'-O-β-D-glucosyl-5-O-methylvisamminol, sec-O-glucosylhamaudol, and 3\'-O-angeloylhamaudol in the samples was simultaneously determined by high performance liquid chromatography(HPLC). Cluster analysis, principal component analysis, partial least squares discriminant analysis, and Pearson correlation analysis were performed to analyze the powder chromatic values and the content of 5 components. The results showed that the E~*ab values of the samples were in the order of wild group<multiple-year-old group<one-year-old group. The content of cimifugin, sec-O-glucosylhamaudol, and 3\'-O-angeloylhamaudol in the wild group was significantly higher than that in the multiple-year-old and one-year-old groups. The results of multivariate statistical analysis showed that the quality of multiple-year-old group varied greatly. The quality of the multiple-year-old samples was close to that of the wild group and better than that of the one-year-old group. The variable importance in the projection(VIP) values of b~*, 3\'-O-angeloylhamaudol content, E~*ab, and L~* were all larger than 1, and that of cimifugin content was close to 1. The E~*ab value was negatively correlated with the content of prim-O-glucosylcimifugin, cimifugin, sec-O-glucosylhamaudol, and 3\'-O-angeloylhamaudol, while it had no linear correlation with the 4\'-O-β-D-glucosyl-5-O-methylvisamminol content. The growth patterns and years had different effects on the quality of Saposhnikoviae Radix samples. The chromatic values of Saposhnikoviae Radix and the content of 5 components can be used to evaluate the quality of Saposhnikoviae Radix, and 3\'-O-angeloylhamaudol and cinmifugin can be considered as markers for the quality control of Saposhnikovia divaricata during the growing process.
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  • 文章类型: Journal Article
    此系统评价旨在评估垂直和矢状颅面模式的上颌窦尺寸,并评估颅面模式之间是否存在差异。直到2021年2月,在七个数据库中进行了系统搜索。使用改良的纽卡斯尔渥太华量表评估偏倚风险。采用随机效应模型进行Meta分析。12项研究纳入综述,8项纳入荟萃分析。与I类错牙合相比,上颌窦面积在II类中较大,在III类错牙合症中较小。在比较正常发散的增长模式时,上颌窦面积在低发散性中较小,在超发散性中较大。大多数研究被评为令人满意。在高度发散的II类错牙合畸形和男性中,测量值更高。
    This systematic review was intended to evaluate the maxillary sinus dimensions in vertical and sagittal craniofacial patterns and to assess if there was a difference among the craniofacial patterns. A systematic search was performed in seven databases till February 2021. The risk of bias was performed with modified Newcastle Ottawa scale. Meta-analysis was performed using random effects model. Twelve studies were included in the review and 8 in the meta-analysis. Compared to Class I malocclusion, the maxillary sinus area is greater in Class II and lesser in Class III malocclusion. On comparing normo-divergent growth pattern, the maxillary sinus area is lesser in hypo-divergent and greater in hyper-divergent individuals. Most of the studies were graded as satisfactory. The measurements are greater in hyper-divergent Class II malocclusion and in males.
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