Physiological

生理
  • 文章类型: Journal Article
    急性压力在运动和康复环境中很常见,可能会影响运动学习所必需的认知过程。本研究旨在探讨急性应激对精确手动任务学习的影响。检查其对精细电机控制的五个关键参数的影响:轨迹误差,轨迹误差方向,时间误差,跟踪精度,任务的准确性。一个双重面具,纳入62名参与者(平均年龄20.65±2.54岁;39名女性;23名男性)的随机临床试验.为了检查压力的影响,通过按性别分层随机分组,将参与者分为应激组或对照组.最初,所有参与者都接受了马斯特里赫特急性应激测试(急性应激和控制版本,分别)。随后,他们在学习过程的三个阶段在图形输入板上执行精确的手动任务:获取,短期检索,和长期检索。记录皮肤电活动和心率变异性以评估应激诱导。来自30名压力组参与者和25名对照组参与者的数据分析显示,在三个学习阶段研究的任何变量之间,组间没有统计学上的显着差异。两组在时间误差方面均表现出统计学上的显着改善,轨迹误差方向,与获取相比,短期和长期检索期间的跟踪准确性。我们的发现表明,急性的身体和心理压力不会显着损害学习年轻人坚持特定轨迹和步伐的精确手动任务。
    Acute stress is frequent in sports and rehabilitation contexts and can impact cognitive processes essential for motor learning. This study aimed to investigate the influence of induced acute stress on the learning of a precise manual task, examining its effect on five key parameters of fine motor control: trajectory error, trajectory error direction, time error, tracing accuracy, and task accuracy. A double-masked, randomized clinical trial with 62 participants (average age 20.65 ± 2.54 years; 39 females; 23 males) was conducted. To examine the effects of stress, participants were assigned to either a stress or a control group through stratified randomization by sex. Initially, all participants underwent the Maastricht Acute Stress Test (in its acute stress and control versions, respectively). Subsequently, they performed the precise manual task on a graphic tablet at three stages of the learning process: acquisition, short-term retrieval, and long-term retrieval. Electrodermal activity and heart rate variability were recorded to assess stress induction. Data analysis from 30 stress group participants and 25 control group participants revealed no statistically significant differences between groups in any of the variables studied at the three learning stages. Both groups exhibited statistically significant improvements in time error, trajectory error direction, and tracing accuracy during both short-term and long-term retrieval compared to acquisition. Our findings suggest that acute physical and psychological stress does not markedly impair learning a precise manual task of adhering to a specific trajectory and pace among young adults.
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  • 文章类型: Journal Article
    背景:可穿戴活动跟踪器,包括健身带和智能手表,通过监测生理参数提供疾病检测的潜力。然而,它们作为特定疾病诊断工具的准确性仍然不确定。
    目的:本系统综述和荟萃分析旨在评估可穿戴活动跟踪器是否可用于检测疾病和医疗事件。
    方法:搜索了从开始到2023年4月1日发表的十个电子数据库。如果研究人员使用可穿戴活动跟踪器来诊断或检测医疗状况或事件(例如,跌倒)在成年人的自由生活条件下。进行荟萃分析以评估曲线下的总面积(%),准确度(%),灵敏度(%),特异性(%),和阳性预测值(%)。进行亚组分析以评估设备类型(Fitbit,Oura戒指,和混合)。使用JoannaBriggs研究所诊断测试准确性研究关键评估清单评估偏倚风险。
    结果:共纳入28项研究,共涉及1,226,801名参与者(年龄范围28.6-78.3)。总的来说,16项(57%)研究使用可穿戴设备诊断COVID-19,5项(18%)研究用于房颤,3(11%)心律失常或异常脉搏的研究,3(11%)的跌倒研究,和1(4%)的病毒症状研究。使用的设备是Fitbit(n=6),苹果手表(n=6),Oura环(n=3),设备的组合(n=7),EmpaticaE4(n=1),DynaportMoveMonitor(n=2),三星Galaxy手表(n=1),和其他或未指定(n=2)。对于COVID-19检测,荟萃分析显示,曲线下的合并面积为80.2%(95%CI71.0%-89.3%),准确率为87.5%(95%CI81.6%-93.5%),灵敏度为79.5%(95%CI67.7%-91.3%),特异性为76.8%(95%CI69.4%-84.1%)。对于心房颤动检测,合并阳性预测值为87.4%(95%CI75.7%-99.1%),灵敏度为94.2%(95%CI88.7%-99.7%),特异性为95.3%(95%CI91.8%-98.8%)。对于跌倒检测,合并敏感性为81.9%(95%CI75.1%-88.1%),特异性为62.5%(95%CI14.4%-100%).
    结论:可穿戴活动跟踪器在疾病检测中显示出希望,在识别心房颤动和COVID-19方面具有显著的准确性。虽然这些发现令人鼓舞,需要进一步的研究和改进,以提高其诊断精度和适用性。
    背景:ProsperoCRD42023407867;https://www.crd.约克。AC.uk/prospro/display_record.php?RecordID=407867。
    BACKGROUND: Wearable activity trackers, including fitness bands and smartwatches, offer the potential for disease detection by monitoring physiological parameters. However, their accuracy as specific disease diagnostic tools remains uncertain.
    OBJECTIVE: This systematic review and meta-analysis aims to evaluate whether wearable activity trackers can be used to detect disease and medical events.
    METHODS: Ten electronic databases were searched for studies published from inception to April 1, 2023. Studies were eligible if they used a wearable activity tracker to diagnose or detect a medical condition or event (eg, falls) in free-living conditions in adults. Meta-analyses were performed to assess the overall area under the curve (%), accuracy (%), sensitivity (%), specificity (%), and positive predictive value (%). Subgroup analyses were performed to assess device type (Fitbit, Oura ring, and mixed). The risk of bias was assessed using the Joanna Briggs Institute Critical Appraisal Checklist for Diagnostic Test Accuracy Studies.
    RESULTS: A total of 28 studies were included, involving a total of 1,226,801 participants (age range 28.6-78.3). In total, 16 (57%) studies used wearables for diagnosis of COVID-19, 5 (18%) studies for atrial fibrillation, 3 (11%) studies for arrhythmia or abnormal pulse, 3 (11%) studies for falls, and 1 (4%) study for viral symptoms. The devices used were Fitbit (n=6), Apple watch (n=6), Oura ring (n=3), a combination of devices (n=7), Empatica E4 (n=1), Dynaport MoveMonitor (n=2), Samsung Galaxy Watch (n=1), and other or not specified (n=2). For COVID-19 detection, meta-analyses showed a pooled area under the curve of 80.2% (95% CI 71.0%-89.3%), an accuracy of 87.5% (95% CI 81.6%-93.5%), a sensitivity of 79.5% (95% CI 67.7%-91.3%), and specificity of 76.8% (95% CI 69.4%-84.1%). For atrial fibrillation detection, pooled positive predictive value was 87.4% (95% CI 75.7%-99.1%), sensitivity was 94.2% (95% CI 88.7%-99.7%), and specificity was 95.3% (95% CI 91.8%-98.8%). For fall detection, pooled sensitivity was 81.9% (95% CI 75.1%-88.1%) and specificity was 62.5% (95% CI 14.4%-100%).
    CONCLUSIONS: Wearable activity trackers show promise in disease detection, with notable accuracy in identifying atrial fibrillation and COVID-19. While these findings are encouraging, further research and improvements are required to enhance their diagnostic precision and applicability.
    BACKGROUND: Prospero CRD42023407867; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=407867.
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  • 文章类型: Journal Article
    适应子宫切除术的并发症是妇女和医疗保健提供者关注的话题之一。没有用于评估子宫切除术适应性的工具。本研究旨在设计子宫切除术适应量表(HAS)并评估其心理测量特性。
    这项方法学研究于2018年至2020年在马什哈德进行,伊朗。要开发项目池,使用了来自定向内容分析的定性数据和来自适应和应对工具审查的数据。脸,内容,构造效度,内部一致性,和稳定性用于评估HAS的心理测量学特性。
    HAS的最终版本由24个项目组成,报告的内容有效性指数为0.9。从主成分分析中提取了六个因素,这解释了观察到的方差的60.3。验证性因子分析中的模型拟合指数表明模型拟合良好。α系数和类内系数的值分别为0.86和0.95。
    HAS是评估子宫切除的伊朗妇女适应水平的有效且可靠的量表。HAS可以区分已适应子宫切除术的子宫切除妇女和未适应子宫切除术的妇女。它可用于评估子宫切除妇女在研究和临床实践中的适应性。
    UNASSIGNED: Adaptation to complications of hysterectomy is one of the topics of concern for women and health care providers. There is no instrument for evaluating adaptation to hysterectomy. This study aimed to design the Hysterectomy Adaptation Scale (HAS) and assess its psychometric properties.
    UNASSIGNED: This methodological study was conducted from 2018 to 2020 in Mashhad, Iran. To develop the item pool, qualitative data from directed content analysis and data from the review of adaptation and coping instruments were used. The face, content, construct validity, internal consistency, and stability were used to evaluate the psychometric properties of HAS.
    UNASSIGNED: The final version of the HAS consisted of 24 items with a reported content validity index of 0.9. Six factors were extracted from the principal component analysis, which explained 60.3 of the observed variance. Model fit indices in confirmatory factor analysis showed that the model was well fitted. The values of the alpha coefficient and intra-class coefficient were 0.86 and 0.95, respectively.
    UNASSIGNED: The HAS is a valid and reliable scale for evaluating the adaptation level of hysterectomized Iranian women. HAS can distinguish between hysterectomized women who have adapted to hysterectomy and those who have not. It can be used to assess the adaptation of hysterectomized women in research and clinical practice.
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  • 文章类型: Journal Article
    背景:在弹性和阻力动脉中,富含弹性蛋白的膜,内部弹性层(IEL),将中膜内膜与下层中膜分离。IEL在组织学图像中经常出现皱纹或波纹。这些波纹有时归因于离体血管收缩,和固定工件,因此被认为与生理无关。我们检查即使在生理条件下IEL是否仍保持波纹状。
    方法:用超声测量麻醉猪的颈动脉直径。然后切除了动脉,在锥形套筒内充气,固定,并通过共聚焦显微镜成像。锥形套筒允许跨宽范围的直径固定每个动脉,包围它的超声波直径。因此,该研究旨在量化单动脉的波纹如何随直径变化,并测试当固定动脉与超声直径匹配时是否存在波纹。
    结果:直径低于超声直径(即与超声条件相比,当动脉收缩时),发现IEL波纹随着直径的增加而显著减少,但在超声波直径下没有完全变平.发现IEL的轮廓长度比通过超声测量的动脉周长大大约10%。生理直径可能甚至小于超声直径,因为超声是在全身麻醉下对动物进行的,导致血管舒张,表明在生理条件下更高水平的波纹。对于收缩在超声直径以下的动脉横截面,IEL轮廓长度大致随直径的平方根而减小。
    结论:这项研究的主要结论是:a)当动脉收缩时IEL呈波纹状,随着动脉直径的增加而变平;b)在生理条件下IEL呈波纹状,并且其轮廓长度比生理动脉直径至少多10%;c)IEL尽管比周围动脉层相对较硬,不像无法伸展的膜。
    BACKGROUND: In elastic and resistance arteries, an elastin-rich membrane, the Internal Elastic Lamina (IEL), separates the tunica intima from the underlying tunica media. The IEL often appears wrinkled or corrugated in histological images. These corrugations are sometimes ascribed to vessel contraction ex vivo, and to fixation artifacts, and therefore regarded as not physiologically relevant. We examine whether the IEL remains corrugated even under physiological conditions.
    METHODS: The diameters of carotid arteries of anesthetized pigs were measured by ultrasound. The arteries were then excised, inflated within a conical sleeve, fixed, and imaged by confocal microscopy. The conical sleeve allows fixing each artery across a wide range of diameters, which bracket its ultrasound diameter. Thus the study was designed to quantify how corrugations change with diameter for a single artery, and test whether corrugations exist when the fixed artery matches the ultrasound diameter.
    RESULTS: At diameters below the ultrasound diameter (i.e. when the artery was constricted as compared to ultrasound conditions), the IEL corrugations were found to decrease significantly with increasing diameter, but not fully flatten at the ultrasound diameter. The contour length of the IEL was found to be roughly 10% larger than the circumference of the artery measured by ultrasound. The physiological diameter is likely to be even smaller than the ultrasound diameter since ultrasound was conducted with the animal under general anesthesia, which leads to vasodilation, suggesting a higher level of corrugation under physiological conditions. For arterial cross sections constricted below the ultrasound diameter, the IEL contour length decreased roughly with the square root of the diameter.
    CONCLUSIONS: The primary conclusions of this study are: a) the IEL is corrugated when the artery is constricted and flattens as the artery diameter increases; b) the IEL is corrugated under physiological conditions and has a contour length at least 10% more than the physiological arterial diameter; and c) the IEL despite being relatively stiffer than the surrounding arterial layers, does not behave like an inextensible membrane.
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  • 文章类型: Journal Article
    背景:脉搏间隔是心理和生理健康的生物标志物。现在可以使用手机应用程序评估脉搏间隔,这扩展了研究人员在现实世界中评估脉搏间隔的能力。在实施之前,应建立测量精度。
    目的:这项调查评估了LightHeart移动应用程序在健康年轻人中测量脉搏间隔和脉搏率变异性的有效性。
    方法:通过将LightHeart获得的脉搏间隔和正常脉搏间隔的SD与金标准进行比较来评估有效性,心电图(ECG),在14名年轻健康个体中(平均年龄24岁,SD5岁;n=9,64%女性)坐姿。
    结果:平均脉搏间隔(轻度心脏:859,SD113ms;ECG:857,SD112ms)显示出强的正线性相关(r=0.99;P<.001)和技术之间的强一致性(组内相关系数=1.00,95%CI0.99-1.00)。Bland-Altman图显示了用LightHeart和ECG测得的平均脉搏间隔的良好一致性,具有固定偏差的证据(-1.56,SD1.86;95%CI-5.2至2.1ms),这表明LightHeart稍微高估了脉搏间隔。当Bland-Altman图为每个参与者的逐次搏动脉搏间隔数据构建时,所有参与者在LightHeart和ECG之间表现出非常一致的结果,没有证据表明测量之间存在固定偏倚.心率变异性,通过正常脉搏间隔的SD评估,技术之间证明了很强的一致性(轻心脏:平均73,SD23ms;心电图:平均73,SD22ms;r=0.99;P<.001;组内相关系数=0.99,95%CI0.97-1.00)。
    结论:这项研究提供了证据,表明LightHeart移动应用程序可以有效地测量健康年轻人的脉搏间隔和心率变异性。
    BACKGROUND: Pulse interval is a biomarker of psychological and physiological health. Pulse interval can now be assessed using mobile phone apps, which expands researchers\' ability to assess pulse interval in the real world. Prior to implementation, measurement accuracy should be established.
    OBJECTIVE: This investigation evaluated the validity of the Light Heart mobile app to measure pulse interval and pulse rate variability in healthy young adults.
    METHODS: Validity was assessed by comparing the pulse interval and SD of normal pulse intervals obtained by Light Heart to the gold standard, electrocardiogram (ECG), in 14 young healthy individuals (mean age 24, SD 5 years; n=9, 64% female) in a seated posture.
    RESULTS: Mean pulse interval (Light Heart: 859, SD 113 ms; ECG: 857, SD 112 ms) demonstrated a strong positive linear correlation (r=0.99; P<.001) and strong agreement (intraclass correlation coefficient=1.00, 95% CI 0.99-1.00) between techniques. The Bland-Altman plot demonstrated good agreement for the mean pulse interval measured with Light Heart and ECG with evidence of fixed bias (-1.56, SD 1.86; 95% CI -5.2 to 2.1 ms), suggesting that Light Heart overestimates pulse interval by a small margin. When Bland-Altman plots were constructed for each participant\'s beat-by-beat pulse interval data, all participants demonstrated strong agreement between Light Heart and ECG with no evidence of fixed bias between measures. Heart rate variability, assessed by SD of normal pulse intervals, demonstrated strong agreement between techniques (Light Heart: mean 73, SD 23 ms; ECG: mean 73, SD 22 ms; r=0.99; P<.001; intraclass correlation coefficient=0.99, 95% CI 0.97-1.00).
    CONCLUSIONS: This study provides evidence to suggest that the Light Heart mobile app provides valid measures of pulse interval and heart rate variability in healthy young adults.
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  • 文章类型: Journal Article
    大量女性患有性功能障碍。认知行为疗法(CBT)是一种心理教育疗法,其主要目的是帮助个体改变其功能失调的信念和行为。我们调查了CBT对育龄妇女性功能的影响。
    本研究是一项系统综述和荟萃分析,其中包括许多数据库(WebofScience,PubMed,Scopus,科克伦图书馆,和Embase)从成立之初到2023年11月进行了搜索。包括研究CBT对女性性功能障碍影响的临床试验。这项研究评估了女性的性功能及其组成部分,包括满意度,不适,润滑,唤醒,高潮,欲望,和自信。我们使用ReviewManager5.3版进行荟萃分析。P值小于0.05被认为具有统计学意义。
    共纳入448例性功能障碍妇女共7篇文献。CBT组参与者的平均年龄为33.43±6.04岁,对照组为33.24±5.97岁,差异无统计学意义。我们的结果表明,CBT在改善女性性功能总分方面是有效的(SMD=1.34,95%CI=(1.02,1.65),I2=86%),性满意度,润滑,欲望,性高潮,与对照组相比,自信。然而,CBT对减轻性疼痛没有积极作用。
    根据目前的研究结果,CBT可以被建议作为一种有效的治疗方法,以及其他有性问题的女性的治疗方法。
    UNASSIGNED: A large number of women suffer from sexual dysfunction. Cognitive behavior therapy (CBT) is a psycho-educational therapy the main purpose of which is to help the individual alter their dysfunctional beliefs and behaviors. We investigated the impact of CBT on reproductive-aged women\'s sexual function.
    UNASSIGNED: The present study is a systematic review and meta-analysis in which a number of databases (Web of Science, PubMed, Scopus, Cochrane Library, and Embase) were searched from inception to November 2023. Clinical trials examining the impact of CBT on female sexual dysfunction were included. This study evaluated female sexual function and its components, including satisfaction, discomfort, lubrication, arousal, climax, desire, and assertiveness. We used Review Manager version 5.3 for performing the meta-analysis. P values less than 0.05 were considered statistically significant.
    UNASSIGNED: Seven articles including a total of 448 women with sexual dysfunction were reviewed. The participants\' mean age in the CBT groups was 33.43 ± 6.04 years and that of the control group was 33.24 ± 5.97, which were not significantly different. Our results indicated that CBT is efficient in improving the total score of women\'s sexual function (SMD = 1.34, 95% CI = (1.02, 1.65), I2 = 86%), sexual satisfaction, lubrication, desire, orgasm, and assertiveness compared with the control group. However, CBT had no positive effect on reducing sexual pain.
    UNASSIGNED: Based on the result of the current study, CBT can be suggested as an effective treatment method along with other treatments for women with sexual problems.
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  • 文章类型: Journal Article
    背景:科学和健康宣传活动旨在激发和激发未来学生在这些领域从事职业的兴趣;然而,支持这一假设的研究是有限的。
    目的:我们研究的目的是组织一个综合的解剖学和生理学外展活动,以检查大学前学生的学习经历(学习工具,活动,和促进者)以及从事医疗保健事业并收集有关他们对此类活动的态度和看法的证据的动机。
    方法:在新加坡的李光中华医学院开设了为期2天的心肺和胃肠解剖系统课程,使用其关键的教学方法,也就是说,多模式实践和基于团队的学习。来自新加坡21所大学预科院校的90名大学预科学生参加了这个为期2天的课程,他们的经验使用4点Likert量表和开放式调查问题进行了评估。使用归纳主题分析法对自由文本评论进行分析。
    结果:88名参与者中的81名(92%)完成了使用4点Likert量表的调查。大多数学生认为课程材料足够(平均3.57,SD0.57)并达到学习目标(平均3.73,SD0.52)。学生认为教师是明确的(平均3.73,SD0.52)和有效的(平均3.70,SD0.53)。他们喜欢外展会议的组织(平均3.64,SD0.48),并且非常积极地研究医学或联合/生物医学科学(平均3.69,SD0.54)。实践和基于团队的学习被认为是非常令人满意的(分别为平均3.63,SD0.53和平均3.58,SD0.54)。所有受访者都表示,他们会向同行推荐这门课程。主题分析表明,参与者对人体结构和功能有了新的认识,他们喜欢独特的学习环境,他们有动力去追求医疗保健事业,他们对会议感到满意,与主持人的互动增加了他们对人体解剖学和生理学的理解。
    结论:结构化的健康宣传活动为学生提供了独特的机会,可以在医学院体验临床前学习环境,加深对人体结构和功能的理解,并增加他们对科学的动机和兴趣。Further,外展计划可能为旨在追求健康专业教育的潜在学生奠定基础。
    BACKGROUND: Science and health outreach activities are aimed at motivating and sparking interest among prospective students to pursue careers in these fields; however, research studies supporting this hypothesis are limited.
    OBJECTIVE: The aim of our study was to organize an integrated Anatomy and Physiology outreach to examine preuniversity students\' learning experiences (learning tools, activities, and facilitators) and motivation to pursue a career in health care and to gather evidence on their attitudes and perceptions of such activities.
    METHODS: A 2-day course on cardiorespiratory and gastrointestinal anatomical systems was presented at the Lee Kong Chian School of Medicine in Singapore using its key pedagogies, that is, multimodal practical and team-based learning. Ninety preuniversity students from 21 preuniversity institutions in Singapore participated in this 2-day course, and their experiences were evaluated using a 4-point Likert scale and open-ended survey questions. Free-text comments were analyzed using inductive thematic analysis.
    RESULTS: The survey using the 4-point Likert scale was completed by 81 (92%) of the 88 participants. Most students felt that the course materials were adequate (mean 3.57, SD 0.57) and met the learning objectives (mean 3.73, SD 0.52). The students felt that the instructors were clear (mean 3.73, SD 0.52) and effective (mean 3.70, SD 0.53). They liked the organization of the outreach session (mean 3.64, SD 0.48) and were highly motivated to study medicine or allied/biomedical sciences (mean 3.69, SD 0.54). Practical and team-based learning were regarded as exceedingly satisfactory (mean 3.63, SD 0.53 and mean 3.58, SD 0.54, respectively). All the respondents said that they would recommend this course to peers. Thematic analysis revealed that the participants gained a new perspective of the human body structure and function, they liked the unique learning settings, they were motivated to pursue a career in health care, they were satisfied with the sessions, and interactions with the facilitators increased their understanding of the human anatomy and physiology.
    CONCLUSIONS: Structured health outreach activities provide students with unique opportunities to experience a preclinical learning environment in a medical school, deepen their understanding of human body structure and function, and increase their motivation and interest in science. Further, outreach programs may lay the foundations for potential students aiming to pursue health profession education.
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  • 文章类型: Journal Article
    干旱胁迫被广泛认为是一种非常有害的非生物胁迫因素,会显著影响作物的生长。发展,和农业生产力。作为对外界刺激的反应,植物激活各种机制以增强其对非生物胁迫的抗性或耐受性。普通的豆子,根据粮农组织的说法,这是一种最重要的豆类,作为全球数百万人的主食,由于其丰富的蛋白质,碳水化合物,和纤维含量,同时,缺水是限制普通豆类生产的主要因素。驯化和农场保护的过程促进了具有不同程度抗旱能力的基因型的发展。因此,在研究中使用地方品种作为生物材料,可以鉴定出对非生物胁迫因子具有优异抗性的变体,可以有效地整合到育种计划中。这项研究的中心范围是找出普通豆类基因型的不同地理起源是否可以确定不同水平的不同反应。因此,进行了几项分析,以调查三种常见豆类基因型对缺水的反应,M-2087(来自中美洲基因库),A-1988(来自安第斯基因库)和Lechinta,以其高抗旱性而闻名。植物受到不同的水制度,然后对各组下胚轴和上胚轴的解剖结构进行光学评估;此外,形态学,生理,和生化参数和分子数据(十三个基因的相对表达的定量)进行评估。当受到12天的水分胁迫时,三个实验变体显示出不同的响应。总的来说,Lechinta基因型表现出最高的适应性和抗旱性。M-2087长河,起源于中美洲地理盆地,对水分胁迫的抵抗力较低,与A-1988的地方品种相比,来自安第斯盆地.取得的成果可用于扩大未来植物抗旱性的研究,分析具有不同地理起源的更常见的豆类地方品种(中美洲/安第斯),然后可以用于育种程序。
    Drought stress is widely recognized as a highly detrimental abiotic stress factor that significantly impacts crop growth, development, and agricultural productivity. In response to external stimuli, plants activate various mechanisms to enhance their resistance or tolerance to abiotic stress. The common bean, a most important legume according to the FAO, serves as a staple food for millions of people worldwide, due to its rich protein, carbohydrate, and fiber content, concurrently, and water scarcity is the main factor limiting common bean production. The process of domestication and on-farm conservation has facilitated the development of genotypes with varying degrees of drought stress resistance. Consequently, using landraces as biological material in research can lead to the identification of variants with superior resistance qualities to abiotic stress factors, which can be effectively integrated into breeding programs. The central scope of this research was to find out if different geographic origins of common bean genotypes can determine distinct responses at various levels. Hence, several analyses were carried out to investigate responses to water scarcity in three common bean genotypes, M-2087 (from the Mesoamerican gene pool), A-1988 (from the Andean gene pool) and Lechinta, known for its high drought stress resistance. Plants were subjected to different water regimes, followed by optical assessment of the anatomical structure of the hypocotyl and epicotyl in each group; furthermore, the morphological, physiological, and biochemical parameters and molecular data (quantification of the relative expression of the thirteen genes) were assessed. The three experimental variants displayed distinct responses when subjected to 12 days of water stress. In general, the Lechinta genotype demonstrated the highest adaptability and drought resistance. The M-2087 landrace, originating from the Mesoamerican geographic basin, showed a lower resistance to water stress, compared to the A-1988 landrace, from the Andean basin. The achieved results can be used to scale up future research about the drought resistance of plants, analyzing more common bean landraces with distinct geographic origins (Mesoamerican/Andean), which can then be used in breeding programs.
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  • 文章类型: Journal Article
    尽管针对普通人群的补充和替代医学(CAM)的研究正在扩大,仍然缺乏研究CAM实践的有效性和利用率的研究,特别是在儿科人群中。根据世界卫生组织(WHO),父母在其家属中使用CAM的患病率估计高达80%。这篇文献综述确定了广泛的,异质,以及关于CAM的应用和有效性的不确定证据,主要归因于社会人口因素的差异和国家医疗保健系统的差异。此外,审查发现主流专业人员在行动机制方面缺乏共识和两极分化的立场,应用程序,CAM的有效性。这篇叙述性综述提出了关于大多数CAM疗法及其应用的疗效的不同结果;然而,一些证据表明针灸的潜在益处,瑜伽,太极,和按摩改善身心健康。此外,现有证据表明冥想可以增强心理健康,而灵气可能只会影响患者的舒适度。鉴于草药的复杂性和多面性,必须逐案评估其功效,考虑到所涉及的具体化合物和程序。这项全面的审查是卫生专业人员的宝贵资源,为考虑患者价值观和信念的个性化医疗保健方法提供指导,从而促进一体化,旨在提高医疗服务质量和患者满意度的循证实践。
    While research on complementary and alternative medicine (CAM) for the general population is expanding, there remains a scarcity of studies investigating the efficacy and utilisation of CAM practices, specifically in the paediatric population. In accordance with the World Health Organization (WHO), the prevalence of the parental utilisation of CAM in their dependents is estimated to reach up to 80%. This literature review identified broad, heterogeneous, and inconclusive evidence regarding CAM\'s applications and effectiveness, primarily attributed to variance in sociodemographic factors and differences in national healthcare systems. Additionally, the review identified a lack of consensus and polarised positions among mainstream professionals regarding the mechanisms of action, applications, and effectiveness of CAM. This narrative review presents varied results concerning the efficacy of most CAM therapies and their applications; however, some evidence suggests potential benefits for acupuncture, yoga, tai chi, and massage in improving physical and mental health. Moreover, the available evidence indicates that meditation may enhance mental health, while reiki may only influence patients\' perceptions of comfort. In light of the intricate and multifaceted nature of herbal medicine, it is imperative to assess its efficacy on a case-by-case basis, taking into account the specific compounds and procedures involved. This comprehensive review serves as a valuable resource for health professionals, offering guidance for personalised healthcare approaches that consider the values and beliefs of patients, thereby facilitating integrated, evidence-based practices aimed at enhancing the quality of healthcare services and patient satisfaction.
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  • 文章类型: Journal Article
    网上服装零售形象是女性身体形象的突出威胁,特别是强调女性身体价值的运动服等部分。在受试者内部实验中,我们让女性(N=128)接触从运动服中随机选择的图像,服装和家居用品网站,并测量他们的凝视行为,生理唤醒,以及主观情绪状态和身体形象评级。接触运动服零售图像会导致身体图像评级明显下降,较高的负面情绪状态,与其他网站图像条件相比,积极情绪状态较低。与家居用品图像条件相比,两种服装图像条件的生理唤醒均显着更高。与休闲服图像条件相比,运动服图像条件的身体偏向凝视行为明显更高。值得注意的是,身体羞耻缓和了自我报告,但没有生理实验效果,因此,身体羞愧程度较高的女性在运动服暴露后,身体形象和情绪状态评级经历了更强烈的不利变化。相关性表明,自我报告的运动服图像的实验反应与自我客观化密切相关,外观比较,饮食紊乱和身体形象应对态度。因此,接触流行服装可能在维持女性适应不良的身体形象态度和行为方面发挥作用。
    Online apparel retail imagery is a prominent threat to women\'s body image, particularly segments such as activewear which emphasize the value of women\'s bodies. In a within-subjects experiment, we exposed women (N = 128) to imagery randomly selected from activewear, casualwear and homewares websites and measured their gaze behavior, physiological arousal, as well as subjective emotional states and body image ratings. Exposure to activewear retail imagery elicited significantly lower body image ratings, a higher negative emotional state, and a lower positive emotional state compared to the other website imagery conditions. Physiological arousal was significantly higher for both apparel imagery conditions compared to the homewares imagery condition. Body biased gaze behavior was significantly higher for the activewear imagery condition compared to the casualwear imagery condition. Notably, body shame moderated the self-reported but not the physiological experimental effects, such that women with higher body shame experienced stronger adverse changes in their body image and emotional state ratings following activewear exposure. Correlations revealed that self-reported experimental responses to activewear imagery were strongly associated with self-objectification, appearance comparison, disordered eating and body image coping attitudes. Thus, exposure to popular apparel may play a role in maintaining maladaptive body image attitudes and behaviors in women.
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