Health and well-being

健康和福祉
  • 文章类型: Journal Article
    已知植物酚类具有多种生物活性。本研究旨在提取和检查宝芒果(MangiferaindicaL.var。)果皮乙醇提取物(MPE)。Further,抗氧化剂,抗糖尿病药(α-淀粉酶,和α-葡萄糖苷酶抑制活性),和抗阿尔茨海默病(AD)(乙酰胆碱酯酶(AChE),丁酰胆碱酯酶(BChE),测定MPE的β-分泌酶(BACE-1)抑制活性)功效。结果表明,芒果苷(8755.89mg/100g提取物)是MPE中的主要酚类化合物。抗氧化机制表明,与还原力(FRAP)或氧自由基吸收能力(ORAC)相比,MPE具有更高的自由基清除能力(4266.70µmolTE/g提取物)。对糖尿病和AD相关酶的进一步体外酶抑制试验表明,与标准药物(阿卡波糖)相比,MPE对糖尿病相关酶具有更强的抑制作用(P<0.05)。而与它们的标准药物(多奈哌齐)相比,观察到对AD相关酶的IC50值较低(P<0.05)。结果表明,泰宝芒果果皮副产品可以成为降低糖尿病和改善认知健康的潜在营养保健品来源。
    Plant phenolics have been known for various biological activities. This study aims to extract and examine the presence of phenolics in Bao mango (Mangifera indica L. var.) peel ethanolic extract (MPE). Further, antioxidant, anti-diabetic (α-amylase, and α-glucosidase inhibitory activity), and anti- Alzheimer\'s disease (AD) (acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and β-secretase (BACE-1) inhibitory activity) efficacy of MPE were determined. The results indicated that mangiferin (8755.89 mg/ 100 g extract) was the major phenolic compound in MPE. An antioxidant mechanism revealed that MPE had a higher radical scavenging ability (4266.70 µmol TE/g extract) compared to reducing power (FRAP) or oxygen radical absorption capacity (ORAC). Further in-vitro enzyme inhibitory assay against diabetic and AD involved enzymes showed that MPE had stronger inhibitory action against an enzyme involved in diabetes compared to their standard drug (Acarbose) (P < 0.05). While a lower IC50 value was observed against AD-involved enzymes compared to their standard drug (donepezil) (P < 0.05). The results show that Thai Bao mango peel byproduct can be a potential source of nutraceuticals to lower diabetes and improve cognitive health.
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  • 文章类型: Journal Article
    糖尿病是一种持续的代谢病症,其特征在于由于胰岛素分泌或功能受损而导致的血糖水平升高。天然抗糖尿病药物的寻找由于其潜在的有效性和安全性而受到关注。SessuviumPortulacastrum,沿海植物,传统上用于各种医疗目的。本研究通过分析其对参与碳水化合物代谢的关键酶的抑制作用,并探索其与关键靶蛋白的分子相互作用,研究了马齿轮轴水提物的抗糖尿病潜力。制备了SessuviumMosulacastrum的水提物并用于体外分析。提取物对α-淀粉酶和α-葡萄糖苷酶的活性降低,对葡萄糖吸收和餐后高血糖至关重要,被评估。分子对接技术用于探索提取物中活性化合物与糖尿病相关蛋白之间的潜在相互作用。包括BAX,GSK3β,和CADH。该研究表明,SessuviumMouracastrum水提物对α-淀粉酶和α-葡萄糖苷酶均具有显着的抑制作用,表明其降低葡萄糖吸收和餐后高血糖的潜力。此外,分子对接分析显示提取物中的活性化合物与参与糖尿病相关途径的关键蛋白之间的强结合相互作用,即凋亡途径,糖原合成,和细胞粘附。这项研究的发现强调了Sessuvium马齿轮轴水提取物的有前途的抗糖尿病潜力。即将进行的研究应该注意从天然来源中分离和表征对这些抗糖尿病疗法产生影响的活性化合物。
    Diabetes mellitus is a persistent metabolic condition marked by elevated blood glucose levels due to compromised insulin secretion or functionality. The search for natural antidiabetic agents has gained attention due to their potential effectiveness and safety profiles. Sessuvium portulacastrum, a coastal plant, has been traditionally used for various medicinal purposes. This study investigates the antidiabetic potential of Sessuvium portulacastrum aqueous extract by analyzing its inhibitory effects on key enzymes involved in carbohydrate metabolism and exploring its molecular interactions with critical target proteins. The aqueous extract of Sessuvium portulacastrum was prepared and used for in vitro analysis. The reduced activity of the extract against α-amylase and α-glucosidase enzymes, crucial in glucose absorption and postprandial hyperglycemia, was assessed. Molecular docking techniques were employed to explore the potential interactions between active compounds in the extract and diabetes-related proteins, including BAX, GSK3β, and CADH. The study revealed significant inhibition of both alpha-amylase and alpha-glucosidase enzymes by Sessuvium portulacastrum aqueous extract, indicating its potential to reduce glucose absorption and postprandial hyperglycemia. Moreover, the molecular docking analysis demonstrated strong binding interactions between active compounds in the extract and key proteins involved in diabetes-related pathways, namely apoptotic pathways, glycogen synthesis, and cell adhesion. The findings of this study highlight the promising antidiabetic potential of Sessuvium portulacastrum aqueous extract. Upcoming research should get an attention on isolating and characterizing the active compounds responsible for these effects on antidiabetic therapies from natural sources.
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  • 文章类型: Journal Article
    长柄精子,一种来自茜草科的药用植物,因其传统用途和报道的治疗特性而受到关注。本研究旨在研究植物化学组成,并评估源自长柄精草的乙醇提取物的抗炎和抗氧化活性。
    乙醇提取物的植物化学筛选涉及定性分析,以确定主要的植物成分,如单宁,酚类物质,和酸。通过体外试验评估抗炎活性,并使用已建立的方法来测量针对自由基和活性氧的清除活性来评估抗氧化潜力。
    植物化学筛选揭示了长柄精木乙醇提取物中存在各种生物活性成分,包括酸,单宁,蛋白质,和酚类化合物。此外,提取物表现出有效的抗氧化活性,其清除自由基和减弱ROS诱导的氧化应激的能力证明了这一点。
    这项研究的发现强调了Spermacocehispida乙醇提取物作为具有抗炎和抗氧化特性的生物活性化合物来源的潜力。植物化学物质的存在和观察到的生物活性支持其传统用途,并建议潜在的治疗应用。这些结果有助于对具有健康促进作用的天然产品的知识不断增长,并为旨在开发利用Spermacocehispida益处的药物和医学干预措施的进一步研究提供了基础。
    UNASSIGNED: Spermacoce hispida, a medicinal plant from the Rubiaceae family, has garnered attention for its traditional use and reported therapeutic properties. This study aimed to investigate the phytochemical composition and assess the anti-inflammatory and anti-oxidant activities of the ethanolic extract derived from Spermacoce hispida.
    UNASSIGNED: Phytochemical screening of the ethanolic extract involved qualitative analysis to identify major phytoconstituents such as tannins, phenols, and acids. The anti-inflammatory activity was evaluated through in vitro assays, and anti-oxidant potential was assessed using established methods to measure scavenging activity against free radicals and reactive oxygen species.
    UNASSIGNED: Phytochemical screening revealed the presence of various bioactive constituents in the Spermacoce hispida ethanolic extract, including acid, tannin, protein, and phenolic compounds. Furthermore, the extract exhibited potent anti-oxidant activity, as evidenced by its ability to scavenge free radicals and attenuate ROS-induced oxidative stress.
    UNASSIGNED: The findings of this study underscore the potential of Spermacoce hispida ethanolic extract as a source of bioactive compounds with anti-inflammatory and anti-oxidant properties. The presence of phytochemicals and the observed bioactivity support its traditional use and suggest potential therapeutic applications. These results contribute to the growing body of knowledge on natural products with health-promoting effects and provide a basis for further research aimed at developing pharmaceutical and medicinal interventions harnessing the benefits of Spermacoce hispida.
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  • 文章类型: Journal Article
    Crataevanurvala,一种具有潜在治疗特性的药用植物,为新型抗炎药物的开发提供了有希望的途径。这项研究采用了计算机和体外相结合的方法来研究源自Crataevanurvala的化合物的抗炎潜力。
    在计算机模拟阶段,我们进行了虚拟筛选和分子对接分析,以鉴定可与关键炎症靶点相互作用的Crataevanurvala生物活性化合物.随后,选择的化合物被合成并进行体外实验。细胞模型用于评估Crataevanurvala衍生化合物的抗炎作用,关注促炎细胞因子水平的调节和潜在的信号通路。
    虚拟筛选和分子对接导致了几种与炎症靶标具有有利相互作用的生物活性化合物的鉴定。在体外实验中,用Crataevanurvala衍生的化合物治疗导致促炎细胞因子产生的显着减少。此外,这些化合物表现出调节炎症信号通路的能力,进一步证实了他们的抗炎潜力。
    这项研究不仅有助于开发有效的抗炎药物,而且还强调了利用天然来源如Crataevanurvala治疗炎症性疾病的价值。本文提出的双相策略为抗炎药物的发现和验证提供了稳健的框架。
    UNASSIGNED: Crataeva nurvala, a medicinal plant with potential therapeutic properties, offers a promising avenue for the development of novel anti-inflammatory drugs. This study adopted a combined in silico and in vitro approach to investigate the anti-inflammatory potential of compounds derived from Crataeva nurvala.
    UNASSIGNED: In the in silico phase, virtual screening and molecular docking analyses were conducted to identify bioactive compounds from Crataeva nurvala that could interact with key inflammatory targets. Subsequently, selected compounds were synthesized and subjected to in vitro experimentation. Cellular models were employed to assess the anti-inflammatory effects of Crataeva nurvala-derived compounds, focusing on the modulation of pro-inflammatory cytokine levels and the underlying signaling pathways.
    UNASSIGNED: Virtual screening and molecular docking led to the identification of several bioactive compounds with favorable interactions with inflammatory targets. In the in vitro experiments, treatment with Crataeva nurvala-derived compounds resulted in a significant reduction in pro-inflammatory cytokine production. Moreover, the compounds exhibited the ability to modulate inflammatory signaling pathways, further substantiating their anti-inflammatory potential.
    UNASSIGNED: This study not only contributes to the development of effective anti-inflammatory drugs but also underscores the value of harnessing natural sources such as Crataeva nurvala for therapeutic interventions in inflammatory disorders. The dual-phase strategy presented here provides a robust framework for anti-inflammatory drug discovery and validation.
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  • 文章类型: Journal Article
    山孢,通常被称为“Giloy”或“Guduchi”,“是一种在传统医学系统中具有丰富历史的药用植物。Tinospora茎的水提取物由于其已报道的药理活性而引起了人们的关注。本研究旨在研究水提取物的体外生物学特性,并通过计算机研究补充研究结果,以深入了解潜在的分子相互作用。对Tinospora茎水提取物进行了一系列体外测定,以评估其生物学特性。使用体外试验评价抗炎活性。为了补充体外研究结果,进行了涉及分子对接分析的计算机研究,以预测提取物成分与相关生物分子靶标之间的潜在相互作用。体外评估显示了Tinosporacerdifolia茎水提取物的显着抗炎活性,其抑制促炎细胞因子产生的能力证明了这一点。计算机模拟研究提供了对提取物的生物活性成分与关键炎症和抗氧化剂靶标之间的分子相互作用的见解,进一步支持观察到的生物学特性。联合的体外生物学分析和计算机模拟研究提供了一个全面的评估Tinosporacordifolia茎水提取物的潜在治疗特性。已证明的抗炎活性与Tinosporacordifolia的传统用途一致,并表明其在治疗炎症和氧化应激相关疾病中的潜力。计算机上的见解提供了对提取物作用模式的分子理解,加强进一步研究和开发来自Tinosporacerdifolia的天然产品的理由,用于药物和医药应用。
    Tinospora cordifolia, commonly known as \"Giloy\" or \"Guduchi,\" is a medicinal plant with a rich history in traditional medicine systems. The aqueous extract of Tinospora cordifolia stems has garnered attention due to its reported pharmacological activities. This study aimed to investigate the in vitro biological properties of the aqueous extract and complement the findings with in silico studies to gain insights into potential molecular interactions. The Tinospora cordifolia stem aqueous extract was subjected to a battery of in vitro assays to assess its biological properties. Anti-inflammatory activity was evaluated using invitro assay. To complement the in vitro findings, in silico studies involving molecular docking analyses were conducted to predict potential interactions between the extract\'s constituents and relevant biomolecular targets. The in vitro evaluation revealed significant anti-inflammatory activity of the Tinospora cordifolia stem aqueous extract, as evidenced by its ability to suppress the production of pro-inflammatory cytokines. In silico studies provided insights into the molecular interactions between the extract\'s bioactive constituents and key inflammatory and antioxidant targets, further supporting the observed biological properties. The combined in vitro biological assays and in silico studies offer a comprehensive assessment of the Tinospora cordifolia stem aqueous extract\'s potential therapeutic properties. The demonstrated anti-inflammatory activities align with the traditional use of Tinospora cordifolia and suggest its potential in managing inflammatory and oxidative stress-related disorders. The in silico insights provide a molecular understanding of the extract\'s mode of action, strengthening the rationale for further investigation and development of natural products derived from Tinospora cordifolia for pharmaceutical and medicinal applications.
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  • 文章类型: Journal Article
    越来越多的证据表明,提高健康素养对改善健康结果的重要性,自我报告的健康状况,较低的卫生服务使用和疾病预防。重要的是,提高健康素养具有减少健康不平等和不平等的巨大潜力。世界卫生组织(WHO)已将健康素养确定为全球优先事项,将其视为在现代社会中运作所必需的权利和基本能力。建立健康素养基础应该从儿童早期开始,包括关注教育框架和学校课程。世卫组织主张各国政府将其作为明确的目标。作为回应,它得到了重要的国际政策和战略重点,此外,还制定了国家一级的行动计划。在威尔士,英国,它在2010年被确定为优先事项,但尽管在健康和社会护理方面取得了更广泛的发展,幸福,经济和教育政策,此后,健康素养的增长停滞不前。优化健康素养将成为威尔士一系列政策和战略的间接推动者。通过正在进行的重大国家教育改革和引入威尔士新课程,是加强当代和后代健康素养的一个有希望的途径。本课程的四个主要目的之一是健康,自信的个体,健康和福祉是六个法定课程领域之一。追踪这对儿童和年轻人的健康素养的影响,为威尔士提供了作为国家规模的健康素养政策测试平台进行建模和获得牵引力的机会。这需要重新激发健康素养作为国家优先事项。
    A growing body of evidence demonstrates the importance of enhancing health literacy for improved health outcomes, self-reported health, lower health services use and disease prevention. Importantly, improving health literacy has great potential to reduce health inequities and inequalities. The World Health Organization (WHO) has identified health literacy as a global priority, viewing it as a right and a fundamental competency necessary to function within modern society. Building health literacy foundations should begin in early childhood, including focus within educational frameworks and school curricula. The WHO advocate for governments to embed it as an explicit goal. In response, it has received significant international policy and strategy focus, in addition to the development of country-level action plans. In Wales, UK, it was identified as a priority in 2010, but despite wider developments spanning health and social care, well-being, economy and education policy, growth in health literacy has stalled since. Optimizing health literacy would act as an indirect enabler to a range of Welsh policies and strategies. A promising avenue for strengthening the health literacy of current and future generations is through ongoing significant national education reforms and the introduction of the new Curriculum for Wales. One of four overarching purposes of this curriculum is healthy, confident individuals, and health and well-being constitutes one of six statutory curriculum areas. Tracking the impact of this on children and young people\'s health literacy offers opportunities for Wales to model and gain traction as a national-scale health literacy policy testbed. This requires re-energizing health literacy as a national priority.
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  • 文章类型: Journal Article
    背景:建筑和护理是关键行业。尽管这两种职业都涉及身心要求高的工作,COVID-19大流行期间工人面临的风险还没有得到很好的理解。与建筑工人相比,护士(年轻人和老年人)更容易受到倦怠和压力的不良影响,可能是由于COVID-19大流行期间工作需求加快和护士压力增加。在这项研究中,我们使用先进的自然语言处理技术分析了一个大型社交媒体数据集,以探索COVID-19大流行之前和期间两个行业工人的精神状态指标.
    目的:此社交媒体分析旨在通过比较年轻和年长的建筑工人和护士的推文,以了解由于工作健康和安全问题而对其心理健康造成的任何潜在风险,从而填补知识空白。
    方法:我们分析了年轻和年长(年龄<45岁vs>45岁)的建筑工人和护士在Twitter上发布的1,505,638条推文(随后更名为X)。研究期为54个月,从2018年1月至2022年6月,这相当于2020年3月11日世界卫生组织宣布COVID-19为全球大流行之前约27个月和之后27个月。使用大数据分析和计算语言分析对推文进行了分析。
    结果:文本分析显示,护士更多地使用与职业倦怠相关的标签和关键词(包括单字母和双字母),健康问题,与建筑工人相比,心理健康。COVID-19大流行对护士的推文产生了显著影响,这在年轻护士中尤其明显。关于健康和幸福的推文包含更多的第一人称单数代词和影响词,与健康相关的推文包含更多影响词。情绪分析显示,总的来说,护士在推文中的积极情绪比例高于建筑工人。然而,在COVID-19大流行期间,这种情况发生了明显变化。自2020年初以来,情绪发生了变化,负面情绪主导了护士的推文。在建筑工人的推文中没有观察到这种交叉。
    结论:社交媒体分析显示,年轻护士的语言使用模式与经历倦怠和压力的不良影响的人一致。年长的建筑工人比年轻工人有更多的负面情绪,他们更专注于社交和娱乐活动的交流,而不是工作。更广泛地说,这些发现证明了社交媒体启用的大型数据集的实用性,以了解目标人群的福祉,尤其是在社会变革迅速的时期。
    BACKGROUND: Construction and nursing are critical industries. Although both careers involve physically and mentally demanding work, the risks to workers during the COVID-19 pandemic are not well understood. Nurses (both younger and older) are more likely to experience the ill effects of burnout and stress than construction workers, likely due to accelerated work demands and increased pressure on nurses during the COVID-19 pandemic. In this study, we analyzed a large social media data set using advanced natural language processing techniques to explore indicators of the mental status of workers across both industries before and during the COVID-19 pandemic.
    OBJECTIVE: This social media analysis aims to fill a knowledge gap by comparing the tweets of younger and older construction workers and nurses to obtain insights into any potential risks to their mental health due to work health and safety issues.
    METHODS: We analyzed 1,505,638 tweets published on Twitter (subsequently rebranded as X) by younger and older (aged <45 vs >45 years) construction workers and nurses. The study period spanned 54 months, from January 2018 to June 2022, which equates to approximately 27 months before and 27 months after the World Health Organization declared COVID-19 a global pandemic on March 11, 2020. The tweets were analyzed using big data analytics and computational linguistic analyses.
    RESULTS: Text analyses revealed that nurses made greater use of hashtags and keywords (both monograms and bigrams) associated with burnout, health issues, and mental health compared to construction workers. The COVID-19 pandemic had a pronounced effect on nurses\' tweets, and this was especially noticeable in younger nurses. Tweets about health and well-being contained more first-person singular pronouns and affect words, and health-related tweets contained more affect words. Sentiment analyses revealed that, overall, nurses had a higher proportion of positive sentiment in their tweets than construction workers. However, this changed markedly during the COVID-19 pandemic. Since early 2020, sentiment switched, and negative sentiment dominated the tweets of nurses. No such crossover was observed in the tweets of construction workers.
    CONCLUSIONS: The social media analysis revealed that younger nurses had language use patterns consistent with someone experiencing the ill effects of burnout and stress. Older construction workers had more negative sentiments than younger workers, who were more focused on communicating about social and recreational activities rather than work matters. More broadly, these findings demonstrate the utility of large data sets enabled by social media to understand the well-being of target populations, especially during times of rapid societal change.
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  • 文章类型: Journal Article
    目的:单独检查时,慢性牙周炎和2型糖尿病(T2DM)与认知功能下降有关。为了更深入地了解这些疾病对认知能力下降的综合影响,本研究旨在检查2型糖尿病合并慢性牙周炎患者的认知状况.
    方法:我们招募了220名参与者,分为四组:I组,健康受试者;第二组,慢性牙周炎患者;第三组,患有T2DM的个体;和IV组,2型糖尿病和慢性牙周炎患者。记录所有参与者的病史,然后采用蒙特利尔认知评估(MoCA)量表进行牙周检查并评价认知状况。使用九孔钉测试评估手指的灵活性。
    结果:在I组和IV组之间观察到轻度认知障碍(MCI)比例的统计学显着增加(p<0.001)。Logistic回归分析显示,在这项研究评估的参数中,调整后的比值比(OR)对年龄显著,手指灵巧度评分,2型糖尿病和牙周炎的同时发生。
    结论:这项研究的结果表明,慢性牙周炎和T2DM的同时发生可能对个体的认知能力产生不利影响。随后的研究应包括纵向监测治疗期间并发疾病患者的认知状态,以更深入地了解这些共同发生的疾病与认知下降之间的关系。
    OBJECTIVE: Chronic periodontitis and type 2 diabetes mellitus (T2DM) are associated with cognitive decline when examined individually. To gain deeper insight into the combined effects of these conditions on cognitive decline, the present study aimed to examine the cognitive status of individuals with co-occurring T2DM and chronic periodontitis.
    METHODS: We recruited 220 participants categorized into four groups: Group I, healthy subjects; Group II, individuals with chronic periodontitis; Group III, individuals with T2DM; and Group IV, individuals with both T2DM and chronic periodontitis. Medical histories were recorded for all participants, followed by periodontal examination and evaluation of cognitive status using the Montreal Cognitive Assessment (MoCA) scale. Finger dexterity was assessed using the nine-hole peg test.
    RESULTS: A statistically significant increase in the proportion of mild cognitive impairment (MCI) was observed between groups I and IV (p<0.001). Logistic regression analysis revealed that, among the parameters assessed in this study, the adjusted odds ratio (OR) was significant for age, finger dexterity scores, and co-occurrence of T2DM and periodontitis.
    CONCLUSIONS: The findings of this study suggest that the co-occurrence of chronic periodontitis and T2DM can have a detrimental effect on the cognitive abilities of an individual. Subsequent research should include longitudinal monitoring of the cognitive status in patients with concurrent conditions during treatment to gain deeper prognostic insights into the relationship between these co-occurring conditions and cognitive decline.
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  • 文章类型: Journal Article
    近年来,许多学生面临经济困难和粮食不安全,即使大学努力创造更公平的大学途径。需要更全面的视角来解决大学生粮食不安全的复杂性。为此,我们研究了健康的社会决定因素之间的关系,包括大学粮食不安全(CoFI)和儿童粮食不安全(ChFI),以及它们与福祉措施的关系。研究样本是一个便利样本,其中包括一所公立大学的372名学生,他们在2021年秋季对一项在线调查做出了回应。要求学生报告他们在过去30天内的粮食安全状况。我们使用了以下分析策略:卡方检验来确定粮食安全(FS)和粮食不安全(FI)学生之间的差异;CoFI对学生人口统计和ChFI的二元逻辑回归;以及幸福度量的序数或二元逻辑回归。黑人学生,校外学生,第一代学生,州内学生,人文/行为/社会/健康科学专业更有可能报告CoFI。FI学生更有可能经历过ChFI,并且在所有福祉指标上得分较低。ChFI与四种幸福感指标相关,其作用由CoFI介导。大学生健康计划将受益于SDOH的核算,包括ChFI经验及其在大学期间经历的累积劣势。
    In recent years, many students have faced economic hardship and experienced food insecurity, even as universities strive to create more equitable pathways to college. There is a need for a more holistic perspective that addresses the complexity of food insecurity amongst college students. To this end, we examined the relationship between the social determinants of health, including college food insecurity (CoFI) and childhood food insecurity (ChFI), and their relationship with well-being measures. The study sample was a convenience sample that included 372 students at a public university who responded to an online survey in fall 2021. Students were asked to report their food security status in the previous 30 days. We used the following analytical strategies: chi-square tests to determine differences between food secure (FS) and food insecure (FI) students; binary logistic regression of CoFI on student demographics and ChFI; and ordinal or binary logistic regression for well-being measures. Black students, off-campus students, first-generation students, in-state students, and humanities/behavioral/social/health sciences majors were more likely to report CoFI. FI students were more likely to have experienced ChFI and to have lower scores on all well-being measures. ChFI was associated with four well-being measures and its effects were mediated by CoFI. College student health initiatives would benefit from accounting for SDOH, including ChFI experiences and its subsequent cumulative disadvantages experienced during college.
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  • 文章类型: Journal Article
    目的:一种测量主要zygomatus(ZM)的机械特性的技术的开发可能有助于在纠正异常口腔姿势的临床治疗中取得进展。这项工作的目的是证明使用MR弹性成像技术测量ZM刚度的可行性,该技术结合了自定义局部驱动器和相位梯度(PG)反演。
    方法:使用90Hz的振动频率对3名健康受试者进行了2DMRE调查,以测试ZM的刚度在张口位置相比于闭口位置更大的预测。沿ZM的长轴获取MRE波图像,并使用沿肌肉长轴的波传播方向应用的2D时空方向滤波器进行处理。通过将PG技术应用于在波图像的第一谐波的相位图像中绘制的一维轮廓来获得刚度测量值,并使用单尾配对t检验来比较两个口腔姿势之间的ZM刚度每个参与者(p<0.05)。
    结果:三个参与者在闭口和张口姿势中的ZM的平均刚度和标准偏差(SD)分别为6.75kPa(SD3.36kPa)和15.5kPa(SD5.15kPa),分别。张口姿势的ZM刚度变化明显大于闭口姿势(p=0.038)。
    结论:已经证明了使用PGMRE技术测量ZM等小肌肉在不同口腔姿势下的刚度变化的可行性。需要在更大的参与者队列中进行进一步的调查,以调查该技术在潜在临床应用以及健康和美容相关研究中的敏感性和可重复性。
    OBJECTIVE: Development of a technique for measuring the mechanical properties of zygomaticus major (ZM) may aid advances in clinical treatments for correcting abnormal oral posture. The objective of this work was to demonstrate the feasibility of measuring the stiffness of ZM using an MR elastography technique that incorporates a custom local driver and a phase-gradient (PG) inversion.
    METHODS: 2D MRE investigations were performed for 3 healthy subjects using a vibration frequency of 90 Hz to test the prediction that the stiffness of ZM would be greater in the mouth-open compared to the mouth-closed position. MRE wave images were acquired along the long axis of ZM and processed using a 2D spatial-temporal directional filter applied in the direction of wave propagation along the long axis of the muscle. Stiffness measurements were obtained by applying the PG technique to a 1D-profile drawn in the phase image of the first harmonic of the wave images and a one-tailed paired t-test was used to compare the ZM stiffness between the two mouth postures (p < 0.05).
    RESULTS: The mean stiffness and standard deviation (SD) of ZM across the three participants in the mouth-closed and mouth-open postures was 6.75 kPa (SD 3.36 kPa) and 15.5 kPa (SD 5.15 kPa), respectively. Changes of ZM stiffness were significantly greater in the mouth-open than the mouth-closed posture (p = 0.038).
    CONCLUSIONS: The feasibility of using the PG MRE technique to measure stiffness changes in a small muscle such as ZM for different mouth postures has been demonstrated. Further investigations are required in a larger cohort of participants to investigate the sensitivity and reproducibility of the technique for potential clinical application as well as in health and beauty related studies.
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