Cold

  • 文章类型: Journal Article
    栽培番茄,番茄红素,对冷应激(CS)高度敏感,导致栽培和采后果实贮藏过程中的重大损失。以前,我们证明了番茄重组自交系(RIL)种群的果实耐寒性存在大量遗传变异,该种群来自对冷敏感的番茄系和野生物种S.pimpinellifolium的耐寒性。这里,我们研究了与果实和叶片耐寒性相关的分子和生化成分,使用对比组的“耐寒性”和“寒性敏感”RI行。对暴露于CS的果实进行转录组学分析,并测定了果实和叶片的基因表达和生化成分。分析揭示了对耐寒或冷敏感RI系具有特异性的核心反应基因,在每个组中的叶子和果实中均以相似的方式受到差异调节。这些基因可用作确定番茄种质耐寒性或敏感性的标记。本研究表明番茄在不同发育阶段对CS的反应,包括幼苗和采后水果,可能是由常见的生物/遗传因素介导的。因此,植物发育早期耐寒性的遗传选择可能会导致采后果实耐寒性更强的品系。
    The cultivated tomato, Solanum lycopersicum, is highly sensitive to cold stress (CS), resulting in significant losses during cultivation and postharvest fruit storage. Previously, we demonstrated the presence of substantial genetic variation in fruit chilling tolerance in a tomato recombinant inbred line (RIL) population derived from a cross between a chilling-sensitive tomato line and a chilling-tolerant accession of the wild species S. pimpinellifolium. Here, we investigated molecular and biochemical components associated with chilling tolerance in fruit and leaves, using contrasting groups of \"chilling tolerant\" and \"chilling sensitive\" RI lines. Transcriptomic analyses were conducted on fruit exposed to CS, and gene expressions and biochemical components were measured in fruit and leaves. The analyses revealed core responding genes specific to either the cold-tolerant or cold-sensitive RI lines, which were differentially regulated in similar fashion in both leaves and fruit within each group. These genes may be used as markers to determine tomato germplasm cold tolerance or sensitivity. This study demonstrated that tomato response to CS in different developmental stages, including seedling and postharvest fruit, might be mediated by common biological/genetic factors. Therefore, genetic selection for cold tolerance during early stages of plant development may lead to lines with greater postharvest fruit chilling tolerance.
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  • 文章类型: Journal Article
    背景与目的:肩袖肌腱炎(RCT)是最常见的肩关节病变之一。它引起疼痛,限制肩关节运动,并损害功能。尽管有各种治疗方法,目前尚无关于RCT最有效干预措施的具体指南.据我们所知,没有研究比较Kinesio录音(KT)和冷疗(CT)对RCT患者的影响。为此,本研究旨在探讨和比较KT和CT对RCT患者疼痛缓解和上肢功能的短期影响.材料和方法:评估了114人的资格。符合纳入标准并同意参与的52名RCT患者被随机分配到KT或CT组。为所有参与者提供了标准化的家庭锻炼计划。他们的疼痛强度,上肢功能,肩部运动范围(ROM),在KT或CT应用三天后,对握力和握力进行了评估。结果:KT组各项评估值均显著提高。在CT组中,与初始值相比,在应用的第三天结束时,CT组的疼痛评分(活动期间的数字评定量表(NRS)疼痛评分除外)显着改善(p<0.05)。对于所有的测量结果,时间×组交互作用的影响有统计学意义(p<0.05)有利于KT组,除了静息疼痛(p=0.688)。结论:研究结果表明,KT和CT可作为RCT患者休息和夜间疼痛缓解的辅助运动方式。KT对活动性疼痛也有积极作用,函数,ROM,和握力。与使用CT来改善夜间疼痛相比,使用KT和锻炼计划可能是更有效的治疗选择,活动性疼痛,RCT患者短期康复过程中的上肢功能。
    Background and Objectives: Rotator cuff tendonitis (RCT) is one of the most common shoulder pathologies. It causes pain, limits shoulder joint movements, and impairs function. Despite various treatment methods, there are currently no specific guidelines regarding the most effective intervention for RCT. To the best of our knowledge, no studies have compared the effects of Kinesio taping (KT) and cold therapy (CT) on individuals with RCT. To this end, this study aimed to investigate and compare the short-term effects of KT and CT on pain relief and upper extremity functionality in individuals with RCT. Materials and Methods: One hundred and fourteen individuals were assessed for eligibility. Fifty-two individuals with RCT who met the inclusion criteria and agreed to participate were randomly allocated into either the KT or the CT group. A standardized home exercise program was given to all the participants. Their pain intensity, upper extremity function, shoulder range of motion (ROM), and grip strength were evaluated initially and after the three days of KT or CT applications. Results: All the assessment values significantly improved in the KT group. In the CT group, only the pain scores (except for the numerical rating scale (NRS) pain score during activity) were significantly improved in the CT group at the end of the third day of application compared to the initial values (p < 0.05). For all the measurement outcomes, the effects of time × group interactions were statistically significant (p < 0.05) in favor of the KT group, except for the resting pain (p = 0.688). Conclusions: The findings suggest that KT and CT could be used as adjunctive modalities to exercise for resting and night pain relief in patients with RCT. KT also had positive effects on the activity pain, function, ROM, and grip strength. The use of KT along with an exercise program could be a more effective therapeutic choice than the use of CT for improving night pain, activity pain, and upper extremity function during the short-term rehabilitation of RCT patients.
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  • 文章类型: Journal Article
    背景:某些环境过敏原暴露在弱势社区中更为常见,并且可能导致对上呼吸道感染(URI)的易感性差异。
    目的:检查室内过敏原与:1)URI;2)URI+感冒症状;3)URI+感冒症状+肺嗜酸性粒细胞性炎症(FENO≥20ppb);和4)URI+感冒症状+肺功能降低(预测FEV1百分比<80%)之间的关联。
    方法:我们使用来自环境对照的数据作为儿童哮喘研究的附加疗法。在空气(小鼠)和沉降的灰尘(小鼠,蟑螂,狗,和猫)。URI是通过测试鼻腔粘液的上呼吸道病毒来确定的。我们评估了过敏原浓度和URI相关结果之间的关联,包括年龄,性别,研究月,季节,健康保险,和家庭大小。
    结果:90名参与者(92%是黑人,92%的公共保险)包括192个观察结果;52(27%)的观察结果对URI呈阳性。蟑螂过敏原浓度的加倍使URI出现感冒症状的几率增加了18%(优势比(OR)=1.18,95%CI,0.99-1.40),URI+感冒症状+肺嗜酸性粒细胞炎症的几率为31%(OR=1.31,95%CI,1.10-1.57),URI+感冒症状+肺功能降低的几率为45%(OR=1.45,95%CI,1.13-1.85)。小鼠过敏原浓度与所有结果呈正相关。暗示对害虫过敏原敏感的儿童之间的关联更强。
    结论:蟑螂和老鼠,但不是狗或猫,过敏原暴露可能会使哮喘患儿易患URI并伴有感冒和下呼吸道转归。
    BACKGROUND: Certain environmental allergen exposures are more common in disadvantaged communities and may contribute to differences in susceptibility to upper respiratory infections (URI).
    OBJECTIVE: To examine associations between indoor allergens and: 1) URI; 2) URI + cold symptoms; 3) URI + cold symptoms + pulmonary eosinophilic inflammation (FENO≥20 ppb); and 4) URI + cold symptoms + reduced lung function (percent predicted FEV1<80%).
    METHODS: We used data from the Environmental Control as Add-on Therapy for Childhood Asthma study. Allergen concentrations were measured in air (mouse) and settled dust (mouse, cockroach, dog, and cat). URI was determined by testing nasal mucus for upper respiratory viruses. We evaluated associations between allergen concentrations and URI-associated outcomes accounting for age, sex, study month, season, health insurance, and household size.
    RESULTS: 90 participants (92% Black, 92% public insurance) with 192 observations were included; 52 (27%) of observations were positive for URI. A doubling in cockroach allergen concentration increased the odds of a URI with cold symptoms by 18% (odds ratios (OR) =1.18, 95% CI, 0.99-1.40), the odds of a URI + cold symptoms + pulmonary eosinophilic inflammation by 31% (OR=1.31, 95% CI, 1.10-1.57), and the odds of a URI + cold symptoms + reduced lung function by 45% (OR = 1.45, 95% CI, 1.13-1.85). Mouse allergen concentrations were positively associated with all outcomes. Associations were suggestively stronger among children sensitized to pest allergens.
    CONCLUSIONS: Cockroach and mouse, but not dog or cat, allergen exposure may predispose children with asthma to URIs with colds and lower respiratory outcomes.
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  • 文章类型: Journal Article
    香蕉是热带和亚热带地区最重要的经济作物之一。干旱和低温胁迫影响香蕉的生长。DREB(脱水反应元件结合蛋白)基因家族,作为主要的转录因子家族之一,在防御非生物胁迫中起着至关重要的作用。目前,尚未报道对香蕉DREB(MaDREB)基因家族的系统分析。在这项研究中,在香蕉基因组中鉴定出MaDREB基因家族的103个成员。此外,转录组学分析结果表明,MaDREBs对干旱和寒冷胁迫有反应。干旱和寒冷胁迫诱导了MaDREB14/22/51的表达;选择这些基因进行进一步分析。qRT-PCR验证结果证实了转录组结果。此外,过表达MaDREB14/22/51的转基因拟南芥植物通过降低MDA含量,增加PRO和可溶性糖含量,表现出对干旱和寒冷胁迫的抵抗力。这项研究增强了我们对MaDREB基因家族功能的理解,提供了对它们在非生物胁迫下的调节作用的新见解,为提高香蕉耐旱性和耐寒性奠定了良好的基础。
    Bananas are one of the most important cash crops in the tropics and subtropics. Drought and low-temperature stress affect the growth of banana. The DREB (dehydration responsive element binding protein) gene family, as one of the major transcription factor families, plays crucial roles in defense against abiotic stress. Currently, systematic analyses of the banana DREB (MaDREB) gene family have not yet been reported. In this study, 103 members of the MaDREB gene family were identified in the banana genome. In addition, transcriptomic analysis results revealed that MaDREBs responded to drought and cold stress. The expression of MaDREB14/22/51 was induced by drought and cold stress; these geneswere selected for further analysis. The qRT-PCR validation results confirmed the transcriptome results. Additionally, transgenic Arabidopsis plants overexpressing MaDREB14/22/51 exhibited enhanced resistance to drought and cold stress by reducing MDA content and increasing PRO and soluble sugar content. This study enhances our understanding of the function of the MaDREB gene family, provides new insights into their regulatory role under abiotic stress, and lays a good foundation for improving drought and cold stress-tolerant banana verities.
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  • 文章类型: Journal Article
    在哺乳动物体感系统中,多模态被定义为一些神经元对多种形式的能量做出反应的能力(例如,机械和热)。这种能力被认为是伤害性神经元(多模态C纤维伤害性感受器)的专有特性,也是伤害性外周可塑性的支柱之一。当前的研究发现了一个完全不同的神经元亚群,在相反的机械模态谱(触觉)上具有多模态能力。我们已经观察到,几种触觉传入(1/5)可以在非伤害性范围内对寒冷做出反应。这些细胞的机械阈值和电特性与任何低阈值机械受体(LT)相似,在很宽的速度范围内导电(Aδ到Aβ),缺乏CGRP和TRPM8受体。由于它的密度,冷响应范围,速度,以及对伤害(或缺乏伤害)的反应,我们推测其在控制反射行为(伤口喜欢和摩擦)和调节伤害性脊髓整合中的作用。需要进一步的研究来了解这个神经元的多模态背后的机制,中央建筑,以及对疼痛感知的影响。
    In the mammalian somatosensory system, polymodality is defined as the competence of some neurons to respond to multiple forms of energy (e.g., mechanical and thermal). This ability is thought to be an exclusive property of nociceptive neurons (polymodal C-fiber nociceptors) and one of the pillars of nociceptive peripheral plasticity. The current study uncovered a completely different neuronal sub-population with polymodal capabilities on the opposite mechanical modality spectrum (tactile). We have observed that several tactile afferents (1/5) can respond to cold in non-nociceptive ranges. These cells\' mechanical thresholds and electrical properties are similar to any low-threshold mechano-receptors (LT), conducting in a broad range of velocities (Aδ to Aβ), lacking CGRP and TRPM8 receptors. Due to its density, cold-response range, speed, and response to injury (or lack thereof), we speculate on its role in controlling reflexive behaviors (wound liking and rubbing) and modulation of nociceptive spinal cord integration. Further studies are required to understand the mechanisms behind this neuron\'s polymodality, central architecture, and impact on pain perception.
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  • 文章类型: Journal Article
    鉴于其在代谢稳态中不可忽视的作用,脂肪组织一直是治疗代谢紊乱如肥胖的靶点,糖尿病和心血管疾病。除了它的脂肪分解功能,由于对耗散能量以恢复平衡的不可替代的贡献,脂肪产热已经获得了越来越多的兴趣,其治疗效果已在各种动物模型中得到证实。在这次审查中,我们将简要介绍典型的冷刺激脂肪产热机制,阐明运动和间歇性禁食诱导的脂肪产热机制,重点关注这些信号通路之间的相似性和差异性,努力揭示重叠和特定的靶标,这些靶标可能在改善代谢健康方面协同产生有效的治疗功效。
    Given its nonnegligible role in metabolic homeostasis, adipose tissue has been the target for treating metabolic disorders such as obesity, diabetes and cardiovascular diseases. Besides its lipolytic function, adipose thermogenesis has gained increased interest due to the irreplaceable contribution to dissipating energy to restore equilibrium, and its therapeutic effects have been testified in various animal models. In this review, we will brief about the canonical cold-stimulated adipose thermogenic mechanisms, elucidate on the exercise- and intermittent fasting-induced adipose thermogenic mechanisms, with a focus on the similarities and disparities among these signaling pathways, in an effort to uncover the overlapped and specific targets that may yield potent therapeutic efficacy synergistically in improving metabolic health.
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  • 文章类型: Journal Article
    引言:高海拔地区的特点是条件恶劣(环境、崎岖的地形,自然灾害,和有限的卫生和保健),所有这些都可能导致徒步旅行或攀爬时发生事故/紧急情况的风险。暴露于缺氧,冷,风,太阳辐射是高海拔环境的典型特征。这些偏远地区的紧急情况对医生和急救人员的诊断和治疗技能提出了很高的要求。本次审查的目的是提供见解,为高海拔地区的紧急情况受害者提供最佳护理。方法:作者根据他们的实际经验提供临床建议,辅以适当的最新研究和国际知名的指导方针。结果和讨论:这篇综述涵盖了徒步旅行或高海拔登山时可能发生的大多数紧急情况/健康问题,也就是说,高原疾病和体温过低,冻伤,事故,例如,由于摔倒而严重受伤,心血管和呼吸系统疾病,腹部,肌肉骨骼,眼睛,牙科,和皮肤问题。我们总结了发生这些事件时的紧急护理和缓解疼痛的当前建议。
    Introduction: High altitude regions are characterized by harsh conditions (environmental, rough terrain, natural hazards, and limited hygiene and health care), which all may contribute to the risk of accidents/emergencies when trekking or climbing. Exposure to hypoxia, cold, wind, and solar radiation are typical features of the high altitude environment. Emergencies in these remote areas place high demands on the diagnostic and treatment skills of doctors and first-aiders. The aim of this review is to give insights on providing the best possible care for victims of emergencies at high altitude. Methods: Authors provide clinical recommendations based on their real-world experience, complemented by appropriate recent studies and internationally reputable guidelines. Results and Discussion: This review covers most of the emergencies/health issues that can occur when trekking or during high altitude climbing, that is, high altitude illnesses and hypothermia, freezing cold injuries, accidents, for example, with severe injuries due to falling, cardiovascular and respiratory illnesses, abdominal, musculoskeletal, eye, dental, and skin issues. We give a summary of current recommendations for emergency care and pain relief in case of these various incidents.
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  • 文章类型: Journal Article
    野草莓(FragariavescaL.;F.vesca)代表了一种有弹性且经过广泛研究的模型生物。而AP2/ERF基因家族在植物发育中起着举足轻重的作用,它在F.vesca内部的探索仍然有限。在这项研究中,我们使用最近发布的基因组数据表征了野草莓中的AP2/ERF基因家族(F.vescaV6.0)。我们对基因家族扩展模式进行了分析,我们在寒冷条件下检查了茎段和叶片中的基因表达,我们探索了它的功能属性。我们的调查显示,FvAP2/ERF家族包含分布在四个亚家族中的86个基因:AP2(17),RAV(6),ERF(62),和独奏家(1)。串联和分段重复显着促进了该基因家族的生长。此外,预测分析确定了与分生组织表达相关的启动子区域中的几个顺式作用元件,激素调节,和电阻调制。冷胁迫下的转录组分析揭示了茎段和叶中多个FvAP2/ERF之间的不同反应。实时荧光定量逆转录PCR(RT-qPCR)结果证实在冷处理之后选择的基因的表达水平升高。此外,FvERF23在拟南芥中的过表达增强了耐寒性,与野生型对照相比,导致鲜重和根长度显着增加。这些发现为进一步探索FvAP2/ERF基因的功能作用奠定了基础。
    The wild strawberry (Fragaria vesca L.; F. vesca) represents a resilient and extensively studied model organism. While the AP2/ERF gene family plays a pivotal role in plant development, its exploration within F. vesca remains limited. In this study, we characterized the AP2/ERF gene family in wild strawberries using the recently released genomic data (F. vesca V6.0). We conducted an analysis of the gene family expansion pattern, we examined gene expression in stem segments and leaves under cold conditions, and we explored its functional attributes. Our investigation revealed that the FvAP2/ERF family comprises 86 genes distributed among four subfamilies: AP2 (17), RAV (6), ERF (62), and Soloist (1). Tandem and segmental duplications significantly contributed to the growth of this gene family. Furthermore, predictive analysis identified several cis-acting elements in the promoter region associated with meristematic tissue expression, hormone regulation, and resistance modulation. Transcriptomic analysis under cold stress unveiled diverse responses among multiple FvAP2/ERFs in stem segments and leaves. Real-time fluorescence quantitative reverse transcription PCR (RT-qPCR) results confirmed elevated expression levels of select genes following the cold treatment. Additionally, overexpression of FvERF23 in Arabidopsis enhanced cold tolerance, resulting in significantly increased fresh weight and root length compared to the wild-type control. These findings lay the foundation for further exploration into the functional roles of FvAP2/ERF genes.
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  • 文章类型: Journal Article
    肌肉骨骼疼痛是我们社会的主要负担。肌肉骨骼疼痛或损伤的管理包括药理学和非药理学方法。包括热疗(HT)。HT是一种公认的治疗选择,因为它能够促进肌肉放松,增强血液循环,并以良好的安全性调节伤害感受器。本文的主要重点是回顾有关膝关节病理学中HT的现有文献(即,关节病,关节炎,亚急性期的创伤性病理,肌肉和肌腱病理与疲劳有关,肌肉紧张和分心),并在缺乏数据的情况下提供专家意见。
    Musculoskeletal pain is a major burden in our society. Management of musculoskeletal pain or injuries includes both pharmacological and non-pharmacological approaches, including heat therapy (HT). HT is a well-established treatment option due to its ability to promote muscle relaxation, enhance blood circulation, and modulate nociceptors with a good safety profile. The main focus of this paper is to review the available literature about HT in knee pathologies (i.e., arthrosis, arthritis, traumatic pathologies in the subacute phase, muscle and tendon pathologies linked to fatigue, muscle tension and distractions) and to provide an expert opinion in case of lack of data.
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  • 文章类型: Journal Article
    橄榄种植,像世界上其他常绿水果作物一样,受到一年中不同时间霜冻事件发生的限制,主要在冬季或早春。关于品种对霜冻的反应,报告了一些矛盾的结果,这取决于发生寒冷或霜冻发作时组织的生理阶段(适应或不适应)。这项工作旨在实现一种用户友好且可靠的实验室方法来辨别霜冻耐受性。
    我们的方法考虑了分离的叶子和盆栽的小植株。评估了不同品种之间损害的最佳温度,以及暴露于寒冷的时间和恢复时间,以正确评估症状。此外,对幼叶和成熟叶的损害进行了比较分析。为了验证该方法的有效性,对“Arbequina”(耐性)品种进行了评估,\'图片\'(适度宽容),和“Frantoio”(易感)在适应和非适应条件下。
    结果表明,当分离的叶子用于霜冻评估时,暴露于寒冷后30分钟的温度为-10°C±1°C,在26°C的恢复时间为24-48小时,足以引起叶片的损伤并区分品种的敏感性。在这些条件下,可以对症状进行精确评估,促进各种橄榄品种抗冻性水平的分类。值得注意的是,在评估过程中,幼叶和成熟叶之间没有观察到显着差异。另一方面,评估盆栽植株损害的临界温度确定为-7°C±1°C。此外,据观察,与未适应的植物相比,适应的植物表现出更少的症状,与“Frantoio”一起受影响最大的是“Picual”和“Arbequina”。
    实施的方法将允许在短时间内评估几种橄榄品种的抗冻性,它被证明是用户友好和可靠的。
    UNASSIGNED: Olive cultivation, like other evergreen fruit crops worldwide, is limited by the occurrence of frost episodes in different times of the year, mainly in winter or early spring. Some contradictory results are reported about cultivars\' response to frost, which depends on the physiological stage of the tissues (acclimated or not acclimated) when the cold or frost episode occurs. This work aimed to implement a user-friendly and reliable lab method for discerning frost tolerance.
    UNASSIGNED: Our methodology considered both detached leaves and potted plantlets. The optimal temperature at which damage differentiated between cultivars was evaluated, as well as the time of exposure to cold and the recovery time for the correct evaluation of the symptoms. Furthermore, a comparative analysis of damage on both young and mature leaves was conducted. To validate the efficacy of the methodology, assessments were conducted on the cultivars \'Arbequina\' (tolerant), \'Picual\' (moderately tolerant), and \'Frantoio\' (susceptible) under acclimated and non-acclimated conditions.
    UNASSIGNED: The results indicated that, when detached leaves were used for frost evaluation, a temperature of -10°C ± 1°C for 30 min and a recovery time at 26°C for 24-48 h after exposure to cold are enough to induce damages on the leaves and discriminate between cultivar susceptibility. Under these conditions, a precise assessment of symptoms can be made, facilitating the categorization of frost tolerance level in various olive cultivars. Notably, no significant differences were observed between young and mature leaves during the evaluation process. On the other hand, the critical temperature to assess damages on potted plantlets was determined to be -7°C ± 1°C. In addition, it was observed that acclimated plants exhibited fewer symptoms compared to non-acclimated ones, with \'Frantoio\' being the most affected alongside \'Picual\' and \'Arbequina\'.
    UNASSIGNED: The implemented methodology will allow the assessment of frost tolerance in several olive cultivars within a short timeframe, and it is proven to be user-friendly and reliable.
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