biochemical parameters

生化参数
  • 文章类型: Journal Article
    背景:越来越多的证据表明,偏头痛是对大脑能量不足或超过抗氧化能力的氧化应激水平的反应。目前的药物选择不足以治疗慢性偏头痛患者,和越来越多的兴趣集中在营养方法作为非药物治疗。生酮饮食,模仿导致酮体升高的禁食,是一种针对脑代谢的治疗干预措施,最近在预防偏头痛方面显示出巨大的希望。此外,像蔬菜这样的地中海元素,坚果,草药,香料,和橄榄油是抗炎成分的来源(omega-3脂肪酸,多酚,维生素,必需矿物质,和益生菌)可以通过减少肠道微生物组的失衡来创造积极的大脑环境。
    方法:根据这些适应症,对慢性偏头痛患者进行地中海-生酮联合饮食4周(T1)和8周(T2),在T1和T2时收集人体测量估计值,而生化参数仅在T2时收集。
    结果:早在饮食干预4周就检测到偏头痛频率和强度的显着降低(p<0.01),这与8周后脂肪量减少(p<0.001)以及Homa指数(p<0.05)和胰岛素水平(p<0.01)有关。
    结论:总体而言,地中海生酮饮食可能被认为是偏头痛的有效非药物干预措施,对身体成分有积极的影响。
    BACKGROUND: An increasing amount of evidence suggests that migraine is a response to cerebral energy deficiencies or oxidative stress levels that exceed antioxidant capacity. Current pharmacological options are inadequate in treating patients with chronic migraine, and a growing interest focuses on nutritional approaches as non-pharmacological treatments. The ketogenic diet, mimicking fasting that leads to an elevation of ketone bodies, is a therapeutic intervention targeting cerebral metabolism that has recently shown great promise in the prevention of migraines. Moreover, Mediterranean elements like vegetables, nuts, herbs, spices, and olive oil that are sources of anti-inflammatory elements (omega-3 fatty acids, polyphenols, vitamins, essential minerals, and probiotics) may create a positive brain environment by reducing imbalance in the gut microbiome.
    METHODS: On the basis of these indications, a combined Mediterranean-ketogenic diet was administered to chronic migraine patients for 4 (T1) and 8 weeks (T2), and anthropometric estimations were collected at T1 and T2 while biochemical parameters at only T2.
    RESULTS: A significant reduction (p < 0.01) in migraine frequency and intensity was detected as early as 4 weeks of dietary intervention, which was associated with a reduced fat mass (p < 0.001) as well as Homa index (p < 0.05) and insulin levels (p < 0.01) after 8 weeks.
    CONCLUSIONS: Overall, Mediterranean-ketogenic diet may be considered an effective non-pharmacological intervention for migraine, with positive outcomes on body composition.
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  • 文章类型: Journal Article
    缺氧已成为限制水产养殖发展的最关键因素之一。鲤鱼(Carassiusauratus)是中国广泛食用的鱼类,对低氧环境具有优异的耐受性。然而,cru鱼缺氧适应和耐受的分子机制尚不清楚。与对照相比,T-SOD增加,CAT,GSH-Px,T-AOC,ALT,AST活性和MDA,TCHO,和TG含量,低氧胁迫后,TP和ATP含量降低。基于RNA-seq,2479个差异表达(DE)mRNA和60个DEmiRNA,和许多参与HIF信号通路的DEmRNA(HIF-1α,epo,vegfa,andho),厌氧代谢(hk1/hk2,pfk,gapdh,pk,和ldh)和免疫应答(nlrp12,cxcr1,cxcr4,ccr9和cxcl12)在缺氧暴露后显著上调。综合分析发现,预测igfbp1、hsp70和hk2受novel_867、dre-miR-125c-3p/novel_173、dre-miR-181b-5p、和dre-miR-338-5p/dre-miR-17a-3p,分别,MAPK信号通路显著富集DEmiRNAs,FoxO信号通路,和糖酵解/糖异生。表达分析表明,vegfa的mRNA水平,epo,ho,hsp70,hsp90aa.1,igfbp1,ldh,hk1,pfk,pk,gapdh表现出显著的增长,而sdh和mdh在H3h下调,H12h,H24h组与对照组比较。此外,研究发现,hk2是dre-miR-17a-3p的靶标,过表达dre-miR-17a-3p显著降低了hk2的表达水平,而在dre-miR-17a-3p沉默后获得相反的结果。这些结果有助于我们了解cru鱼耐缺氧的分子机制。
    Hypoxia has become one of the most critical factors limiting the development of aquaculture. Crucian carp (Carassius auratus) is widely consumed fish in China, with excellent tolerance to hypoxic environment. However, the molecular mechanisms underlying hypoxia adaptation and tolerance in crucian carp remain unclear. Compared with the control, increased T-SOD, CAT, GSH-Px, T-AOC, ALT, and AST activities and MDA, TCHO, and TG contents, and decreased TP and ATP contents were observed after hypoxia stress. Based on RNA-seq, 2479 differentially expressed (DE) mRNAs and 60 DE miRNAs were identified, and numerous DE mRNAs involved in HIF signaling pathway (hif-1α, epo, vegfa, and ho), anaerobic metabolism (hk1/hk2, pfk, gapdh, pk, and ldh) and immune response (nlrp12, cxcr1, cxcr4, ccr9, and cxcl12) were significantly upregulated after hypoxia exposure. Integrated analysis found that ho, igfbp1, hsp70, and hk2 were predicted to be regulated by novel_867, dre-miR-125c-3p/novel_173, dre-miR-181b-5p, and dre-miR-338-5p/dre-miR-17a-3p, respectively, and targets of DE miRNAs were significantly enriched in MAPK signaling pathway, FoxO signaling pathway, and glycolysis/gluconeogenesis. Expression analysis showed that the mRNA levels of vegfa, epo, ho, hsp70, hsp90aa.1, igfbp1, ldh, hk1, pfk, pk, and gapdh exhibited a remarkable increase, whereas sdh and mdh were downregulated in the H3h, H12h, and H24h groups compared with the control. Furthermore, research found that hk2 is a target of dre-miR-17a-3p, overexpression of dre-miR-17a-3p significantly decreased the expression level of hk2, while the opposite results were obtained after dre-miR-17a-3p silencing. These results contribute to our understanding of the molecular mechanisms of hypoxia tolerance in crucian carp.
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  • 文章类型: Journal Article
    Ciguatera是由雪茄毒素(CTX)引起的食源性疾病,由鞭毛藻(冈比亚属和福约属)产生,通过食物网在鱼中生物积累,导致人类中毒。目前,在其成年阶段能够引起这些中毒的毒素含量最高的物种的生理机制知之甚少。昏暗的石斑鱼(Epinephelusmarginatus)是一种相关的捕捞物种,是加那利群岛CTX食物链的一部分。这项研究开发了一种饮食暴露的实验模型,该模型以成年暗色石斑鱼为特征,其中两种饮食被CTX(amberjack和moray鳗鱼肉)自然污染,具有两种不同的潜在毒性;两组均在暴露的不同阶段(4、6、10、12和18周)进行了研究。结果表明,由于提供的摄食,该物种的行为没有发生变化,但是这些变化记录在生化参数(主要是脂质和肝脏代谢)中,这些参数可能对肝脏损伤和鱼类稳态的改变产生反应;需要更多的研究来了解组织病理学和细胞毒性变化。
    Ciguatera is a foodborne disease caused by ciguatoxins (CTXs), produced by dinoflagellates (genera Gambierdiscus and Fukuyoa), which bioaccumulate in fish through the food web, causing poisoning in humans. Currently, the physiological mechanisms of the species with the highest amount of toxins in their adult stage of life that are capable of causing these poisonings are poorly understood. Dusky grouper (Epinephelus marginatus) is a relevant fishing species and is part of the CTX food chain in the Canary Islands. This study developed an experimental model of dietary exposure featuring adult dusky groupers with two diets of tissue naturally contaminated with CTXs (amberjack and moray eel flesh) with two different potential toxicities; both groups were studied at different stages of exposure (4, 6, 10, 12, and 18 weeks). The results showed that this species did not show changes in its behavior due to the provided feeding, but the changes were recorded in biochemical parameters (mainly lipid and hepatic metabolism) that may respond to liver damage and alterations in the homeostasis of the fish; more research is needed to understand histopathological and cytotoxic changes.
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  • 文章类型: Journal Article
    水分亏缺影响植物的生长以及生理和生化过程。这项研究的目的是确定两个小麦品种对干旱胁迫的生理和生化响应的差异-中国春季(CS)和SQ1(它们是双单倍体系作图种群的亲本)-并将这些响应与最终产量和农艺性状。通过停水14天诱导干旱胁迫,之后将植物重新浇水并保持直到收获。3日对瞬时气体交换参数进行了评估,5th,第十,干旱下幼苗生长的第14天。14天后,含水量和叶绿素a+b水平,类胡萝卜素,丙二醛,可溶性碳水化合物,酚类物质,水杨酸,脱落酸(ABA),和多胺被测量。在最终成熟时,产量成分(谷物数量和重量),生物量,稻草重量,和收获指数进行了评价。CS的生理生化参数对14天干旱的响应比SQ1强,反映在CS中最终生物量和产量的更大减少。对于可溶性碳水化合物和多胺,CS和SQ1对干旱的响应之间存在明显的生化差异。这些将是在作图群体中测试这些性状的遗传控制与最终生物量和产量的一致性的良好候选者。
    Water deficit affects the growth as well as physiological and biochemical processes in plants. The aim of this study was to determine differences in physiological and biochemical responses to drought stress in two wheat cultivars-Chinese Spring (CS) and SQ1 (which are parents of a mapping population of doubled haploid lines)-and to relate these responses to final yield and agronomic traits. Drought stress was induced by withholding water for 14 days, after which plants were re-watered and maintained until harvest. Instantaneous gas exchange parameters were evaluated on the 3rd, 5th, 10th, and 14th days of seedling growth under drought. After 14 days, water content and levels of chlorophyll a+b, carotenoids, malondialdehyde, soluble carbohydrates, phenolics, salicylic acid, abscisic acid (ABA), and polyamines were measured. At final maturity, yield components (grain number and weight), biomass, straw weight, and harvest index were evaluated. Physiological and biochemical parameters of CS responded more than those of SQ1 to the 14-day drought, reflected in a greater reduction in final biomass and yield in CS. Marked biochemical differences between responses of CS and SQ1 to the drought were found for soluble carbohydrates and polyamines. These would be good candidates for testing in the mapping population for the coincidence of the genetic control of these traits and final biomass and yield.
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  • 文章类型: Journal Article
    背景:人体暴露于冷水会引发许多有益的生理变化。该研究旨在评估定期冬泳对血液形态的影响,流变学,以及男性抗氧化酶的生化指标和活性。
    方法:该研究涉及10名男性冬泳者(同一参与者在赛季前和赛季后进行了检查)和13名男性(不是冬泳,在对照组中,过着久坐的生活方式)。收集了两次空腹血液:11月和次年3月。基本血液形态学指标,红细胞伸长指数(EI)和聚集指数(AI),睾酮的浓度,皮质醇,尿素,和肌酐,以及过氧化氢酶(CAT)的抗氧化酶的血浆活性,超氧化物歧化酶(SOD),测定谷胱甘肽过氧化物酶(GPx)。
    结果:数据是在赛季开始和结束时从相同的冬泳者那里收集的。冬泳在0.30的剪切应力下导致EI值显着增加(p=0.40),0.58(p<0.001),4.24(p=0.021),8.23(p=0.001),15.59(p=0.001),30.94(p=0.004),和60.00Pa(p=0.043);血红蛋白低于季节前(p<0.027)。AI没有观察到显著变化,AMP,T1/2,尿素水平,肌酐,eGFR,睾丸激素,皮质醇,或CAT或SOD的活性。与对照组相比,在赛季前检查的冬泳组的GPx活性(p=0.014)和睾丸激素浓度(p=0.035)在统计学上显着增加。血液形态学指标和其他参数的平均值无统计学差异。
    结论:冬泳可以证明是男性的健康促进因素,整个冬泳季节后,血管系统中红细胞的变形能力上升,导致更好的身体氧合,与对照组相比,在季节前检查的冬泳组的抗氧化剂防御能力和睾丸激素浓度(在标准范围内)得到了改善。冬泳有助于维持血液流变学指标的适当水平,尿素,肌酐,eGFR,皮质醇,睾丸激素,和抗氧化酶的活性。
    背景:ClinicalTrials.gov标识符NCT06223087,15.01.2024。
    BACKGROUND: Exposure of the human body to cold water triggers numerous beneficial physiological changes. The study aimed to assess the impact of regular winter swimming on blood morphological, rheological, and biochemical indicators and activity of antioxidant enzymes in males.
    METHODS: The study involved 10 male winter swimmers (the same participants examined before the season and after the season) and 13 males (not winter swimming, leading a sedentary lifestyle) in the control group. Fasting blood was collected twice: in November and in March of the following year. Basic blood morphological indicators, red cell elongation index (EI) and aggregation index (AI), concentrations of testosterone, cortisol, urea, and creatinine, as well as plasma activity of antioxidant enzymes of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) were determined.
    RESULTS: The data were collected from the same winter swimmers at the beginning and end of the season. Winter swimming resulted in a significant increase of EI values at a shear stress of 0.30 (p = 0.40), 0.58 (p < 0.001), 4.24 (p = 0.021), 8.23 (p = 0.001), 15.59 (p = 0.001), 30.94 (p = 0.004), and 60.00 Pa (p = 0.043); haemoglobin was lower than before the season (p < 0.027). No significant changes were observed in AI, AMP, T1/2, the levels of urea, creatinine, eGFR, testosterone, cortisol, or the activity of CAT or SOD. There was a statistically significant increase in GPx activity (p = 0.014) and increase in testosterone concentration (p = 0.035) in the group of winter swimmers examined before the season as compared with the control group. No statistically significant differences were found for the mean values of blood morphological indicators and other parameters.
    CONCLUSIONS: Winter swimming can prove to be a health-promoting factor in males, as indicated by a rise in the deformability of red blood cells in the blood vessel system after a full season of winter swimming, leading to better body oxygenation, and improves the antioxidant defence and testosterone concentration (within standard limits) in the group of winter swimmers examined before the season as compared with the control group. Winter swimming helps maintain appropriate levels of blood rheological indicators, urea, creatinine, eGFR, cortisol, testosterone, and activity of antioxidant enzymes.
    BACKGROUND: ClinicalTrials.gov identifier NCT06223087, 15.01.2024.
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  • 文章类型: Journal Article
    肝毒性是临床医生的首要问题,也是药品召回的主要原因。生物标志物是用于评估治疗功效或诊断疾病的可测量和可量化的属性。有各种生物标志物用于检测肝病和肝损伤的意图。
    这篇综述旨在研究肝毒性生物标志物的现状及其在临床环境中的实用性。使用肝脏生物标志物,肝损伤的存在,其严重性,预后,病原体,和肝毒性的类型都可以确定。
    从MEDLINE/PubMed系统检索了截至2022年的相关发表文章,Scopus,EMBASE,和WOS数据库使用关键词,如药物毒性,肝毒性生物标志物,生化参数,和非酒精性脂肪性肝病。
    在临床试验和日常实践中,药物性肝损伤的生物标志物对于发现最严重的肝毒性病例至关重要。因此,开发新的生物标志物方法来增强肝毒性诊断将增加特异性和/或识别有风险的人。重要的是,对肝病患者的早期临床研究证明,一些生物标志物,如转氨酶,胆红素,白蛋白,和胆汁酸甚至在治疗上是有益的。
    通过评估肝损伤的独特体征,医疗保健专业人员可以快速准确地检测肝损伤并评估其严重程度。这些措施有助于确保及时有效的医疗干预,因此降低了长期肝损伤和其他主要健康问题的风险。
    UNASSIGNED: Hepatotoxicity is the foremost issue for clinicians and the primary reason for pharmaceutical product recalls. A biomarker is a measurable and quantifiable attribute used to evaluate the efficacy of a treatment or to diagnose a disease. There are various biomarkers which are used for the detection of liver disease and the intent of liver damage.
    UNASSIGNED: This review aims to investigate the current state of hepatotoxicity biomarkers and their utility in clinical settings. Using hepatic biomarkers, the presence of liver injury, its severity, prognosis, causative agent, and type of hepatotoxicity can all be determined.
    UNASSIGNED: Relevant published articles up to 2022 were systematically retrieved from MEDLINE/PubMed, SCOPUS, EMBASE, and WOS databases using keywords such as drug toxicity, hepatotoxicity biomarkers, biochemical parameters, and nonalcoholic fatty liver disease.
    UNASSIGNED: In clinical trials and everyday practice, biomarkers of drug-induced liver injury are essential for spotting the most severe cases of hepatotoxicity. Hence, developing novel biomarker approaches to enhance hepatotoxicity diagnosis will increase specificity and/or identify the person at risk. Importantly, early clinical studies on patients with liver illness have proved that some biomarkers such as aminotransferase, bilirubin, albumin, and bile acids are even therapeutically beneficial.
    UNASSIGNED: By assessing the unique signs of liver injury, health care professionals can rapidly and accurately detect liver damage and evaluate its severity. These measures contribute to ensuring prompt and effective medical intervention, hence reducing the risk of long-term liver damage and other major health concerns.
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  • 文章类型: Journal Article
    基于柚皮素的纳米复合材料可以缓解乌草中干旱胁迫的有害影响,并通过不同的机制仔细增强植物对干旱条件的耐受性。
    近年来,干旱胁迫被认为是农业植物最重要的胁迫条件之一。减少干旱对植物的影响是当今的关键需求,这就需要创新的方法。柚皮素是具有抗氧化特性的最著名的植物类黄酮之一。在目前的工作中,通过凝聚法合成了以羧甲基纤维素(CMC)为载体的柚皮素基纳米复合材料(CMC-Nar),其平均粒径为65nm。为了研究含柚皮素的CMC纳米复合材料(CMC-Nar)和纯柚皮素在调节干旱胁迫效应中的作用,在温室条件下进行CuminumCuminum(品种:Isfahan和Kashan)的种植。干旱胁迫被施加为田间能力的30%。各种生理,生物化学,在干旱条件下(30%)处理植物后进行植物化学测定。结果表明,在干旱条件下处理纳米复合材料(CMC-Nar)和纯柚皮素增加了生长和光合参数,如发芽,芽和根的鲜重,芽干重,孜然的叶绿素含量。应激标志物如丙二醛,在干旱条件下,在narinjenin尤其是纳米复合材料(CMC-Nar)的处理下,H2O2和电解质泄漏减少。此外,在相同的条件和治疗下,一些生化指标,包括可溶性糖和总蛋白增加,但抗氧化酶的活性和游离氨基酸水平下降。相容的溶质(脯氨酸和甘氨酸甜菜碱)也增加。总酚等植物化学参数有所增加,黄酮类化合物,花青素,在干旱条件下,柚皮素和纳米复合材料(CMC-Nar)处理下的单宁。总的来说,纳米复合材料和纯柚皮素减少了干旱胁迫的有害影响,纳米复合材料(CMC-Nar)的改善效果比纯柚皮素还要好。根据结果:在大多数情况下,与Kashan品种相比,Isfahan品种的(CMC-Nar)纳米复合材料在更大程度上调节了干旱胁迫的影响。本研究试图提出一种新的方法来减轻干旱胁迫对乌梅的影响。
    在线版本包含补充材料,可在10.1007/s12298-024-01460-7获得。
    UNASSIGNED: Naringenin based nanocomposite alleviate the harmful effects of drought stress in Cuminum cyminum and enhance carefully the plant tolerance against drought condition with different mechanisms.
    UNASSIGNED: In the recent years, drought stress is considered as one of the most important stressful conditions for agricultural plants. Reducing the effects of drought on plants is a crucial need nowadays, which calls for innovative methods. Naringenin is one of the most known plant flavonoids with antioxidant properties. In the present work, a naringenin based nanocomposite containing carboxymethylcellulose (CMC) as carrier (CMC-Nar) with an average size of 65 nm were synthesized by coacervation method. In order to investigate the effect of CMC nanocomposites containing naringenin (CMC-Nar) and pure naringenin in modulating the effects of drought stress, cultivation of Cuminum cyminum (varieties: Isfahan and Kashan) was carried out in greenhouse conditions. Drought stress was imposed as 30% of the field capacity. Various physiological, biochemical, and phytochemical assays were performed after treating the plants in drought conditions (30%). The results indicated that treatment of nanocomposites (CMC-Nar) and pure naringenin at drought conditions increased growth and photosynthetic parameters such as germination, shoot and root fresh weight, shoot dry weight, and chlorophyll content of the Cumin. Stress markers such as malondialdehyde, H2O2, and electrolyte leakage decreased under the treatment of narinjenin and especially nanocomposites (CMC-Nar) under drought conditions. Moreover, under same condition and treatments, some biochemical parameters including soluble sugar and total protein increased but the activity of antioxidant enzymes and the level of free amino acids has gone down. Compatible Solutes (Proline and glycine betaine) also increased. There was an increase in phytochemical parameters such as total phenols, flavonoids, anthocyanin, and tannins under naringenin and nanocomposites (CMC-Nar) treatment in drought conditions. In general, nanocomposites and pure naringenin reduced the harmful effects of drought stress, and the ameliorating impacts of nanocomposites (CMC-Nar) are more than pure naringenin. According to the results: In most cases, the impact of drought stress was modulated to a greater extent by (CMC-Nar) nanocomposites in the Isfahan variety compared to the Kashan variety. This research tries to propose a new method to reduce the effects of drought stress on Cuminum cyminum.
    UNASSIGNED: The online version contains supplementary material available at 10.1007/s12298-024-01460-7.
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  • 文章类型: Journal Article
    背景:2019年冠状病毒病(COVID-19)对全球卫生和医疗保健系统产生了重大影响。这项回顾性研究旨在评估Jazan的COVID-19患者的生化参数与预后之间的关系,沙特阿拉伯。
    方法:在建立纳入标准并获得伦理批准后,156例经逆转录聚合酶链反应(RT-PCR)证实的COVID-19患者的数据来自Samtah一家综合医院的电子病历,Jazan,从2020年4月到2021年10月。收集的数据包括患者的人口统计学和肝脏,肾,心,和电解质功能标记水平。描述性的,推论,并进行了主成分分析。
    结果:生存率因年龄和体重指数(BMI)而异。统计分析表明,谷草转氨酶(AST)的水平,丙氨酸氨基转移酶(ALT),碱性磷酸酶(ALP),钠(Na),钾(K),血尿素氮(BUN),肌酐(Cr),肌酸激酶(CK),CK心肌带(MB),乳酸脱氢酶(LDH)明显高于参考值(P<0.05),如使用单样本t检验评估的。主成分分析(PCA)还揭示了这些生化标记物变化的潜在模式。这些结果表明,某些生化参数可能是监测COVID-19患者病情的有用指标。
    结论:这项在Jazan的回顾性研究,沙特阿拉伯强调了COVID-19患者的生化参数与预后之间的关系。肝脏标志物水平升高,肾,心,和电解质功能提示器官损伤和失调。通过PCA识别的模式提供了对疾病严重程度的见解。监测这些参数可以作为评估COVID-19患者的有价值的指标。需要进一步的研究来验证这些发现,探索他们个性化治疗策略的潜力,并在持续的大流行期间改善患者的预后。
    BACKGROUND: Coronavirus disease 2019 (COVID-19) has had a significant impact on global health and healthcare systems. This retrospective study aimed to assess the association between biochemical parameters and outcomes in COVID-19 patients in Jazan, Saudi Arabia.
    METHODS: After establishing the inclusion criteria and obtaining ethical approval, data from 156 reverse transcriptase-polymerase chain reaction (RT-PCR)-confirmed COVID-19 patients were collected from electronic medical records from a general hospital in Samtah, Jazan, from April 2020 to October 2021. The collected data included patient demographics and liver, kidney, heart, and electrolyte function marker levels. Descriptive, inferential, and principal component analyses were conducted.
    RESULTS: Survival rates varied according to age and body mass index (BMI). Statistical analysis demonstrated that the levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), sodium (Na), potassium (K), blood urea nitrogen (BUN), creatinine (Cr), creatine kinase (CK), CK myocardial band (MB), and lactate dehydrogenase (LDH) were significantly higher (P < 0.05) than the reference values, as assessed using the one-sample t-test. Principal component analysis (PCA) also revealed an underlying pattern in the variation of these biochemical markers. These findings suggest that certain biochemical parameters may serve as useful indicators for monitoring the condition of COVID-19 patients.
    CONCLUSIONS: This retrospective study in Jazan, Saudi Arabia highlights the association between biochemical parameters and outcomes in COVID-19 patients. Elevated levels of markers of liver, kidney, heart, and electrolyte function suggest organ damage and dysregulation. The pattern identified through PCA provides insights into disease severity. Monitoring these parameters may serve as valuable indicators for assessing COVID-19 patients. Further research is needed to validate these findings, explore their potential for personalized treatment strategies, and improve patient outcomes during the ongoing pandemic.
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  • 文章类型: Journal Article
    盐度降低作物产量和质量,造成全球经济损失。氧化锌纳米颗粒(ZnO-NPs)改善植物生理代谢过程和抗逆性。这项研究研究了75和150mg/L的叶面ZnO-NP对番茄Kecskemeti549植物减轻150mMNaCl引起的盐胁迫的影响。沉淀过程产生的ZnO-NP使用UV-VIS进行表征,TEM,STEM,DLS,EDAX,Zeta电位,和FTIR。该研究评估了TPC,TFC,总可水解糖,总游离氨基酸,蛋白质,脯氨酸,H2O2和MDA随植物高度的变化,茎宽度,叶面积,和SPAD值。多酚负荷也通过HPLC测量。在盐胁迫下,植物生长和叶绿素含量显著下降。施用ZnO-NP改变了番茄植株的生长发育。ZnO-NP的剂量在治疗中具有显著的效果。ZnO-NP也增加了叶绿素,减少应力标记,并在西红柿的叶子中释放酚类化学物质和蛋白质。ZnO-NP通过促进矿物质的吸收来降低盐胁迫。当受到盐胁迫时,ZnO-NP对番茄植物有有益的影响,使它们成为提高盐渍土或低质量灌溉水恢复力的替代技术。这项研究检查了化学合成的ZnO-NPs对叶子的叶面施用如何影响生物化学,形态学,以及有和没有NaCl的酚类化合物合成。
    Salinity reduces crop yields and quality, causing global economic losses. Zinc oxide nanoparticles (ZnO-NPs) improve plant physiological and metabolic processes and abiotic stress resistance. This study examined the effects of foliar ZnO-NPs at 75 and 150 mg/L on tomato Kecskeméti 549 plants to alleviate salt stress caused by 150 mM NaCl. The precipitation procedure produced ZnO-NPs that were characterized using UV-VIS, TEM, STEM, DLS, EDAX, Zeta potential, and FTIR. The study assessed TPCs, TFCs, total hydrolyzable sugars, total free amino acids, protein, proline, H2O2, and MDA along with plant height, stem width, leaf area, and SPAD values. The polyphenolic burden was also measured by HPLC. With salt stress, plant growth and chlorophyll content decreased significantly. The growth and development of tomato plants changed by applying the ZnO-NPs. Dosages of ZnO-NPs had a significant effect across treatments. ZnO-NPs also increased chlorophyll, reduced stress markers, and released phenolic chemicals and proteins in the leaves of tomatoes. ZnO-NPs reduce salt stress by promoting the uptake of minerals. ZnO-NPs had beneficial effects on tomato plants when subjected to salt stress, making them an alternate technique to boost resilience in saline soils or low-quality irrigation water. This study examined how foliar application of chemically synthesized ZnO-NPs to the leaves affected biochemistry, morphology, and phenolic compound synthesis with and without NaCl.
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  • 文章类型: Journal Article
    背景和目的:由于心血管原因导致的死亡率和发病率在截肢者中经常经历。关于慢性运动对这些个体的生物标志物和心脏损伤指标的影响的研究是有限的。这项研究的目的是研究核心训练计划对脑利钠相关肽的影响,以及截肢足球运动员的血液学和生化参数。材料和方法:将参与者随机分为以下两组:核心运动组(CEG)和对照组(CG)。当CG继续例行足球训练时,CEG组被纳入与该组不同的核心锻炼计划.在研究期间,参与者的常规血象参数,各种生化标记,分析脑钠素相关肽(NT-pro-BNP)浓度。结果:培训期结束后,两组的各种血液学参数均有显著改善.在CEG中,红细胞计数(RBC)显着增强,血细胞比容(HCT),平均红细胞血红蛋白浓度(MCHC),和平均红细胞血红蛋白(MCH)值。同样,CG也显示红细胞大幅改善,HCT,平均红细胞体积(MCV),MCHC,MCH,红细胞分布宽度-标准偏差(RDW-SD),血小板与淋巴细胞比率(PLCR),平均血小板体积(MPV),和血小板分布宽度(PDW)。此外,在CEG中,血清甘油三酯(TG)和最大摄氧量(MaxVO2)显着增加。相反,CG中TG水平下降,而高密度脂蛋白(HDL),低密度脂蛋白(LDL),和MaxVO2水平显示大幅升高。值得注意的是,核心运动计划后,CEG或CG的N末端脑钠肽前体(BNP)水平均无显著变化(p>0.05).然而,在CEG中,核心运动项目前后NT-pro-BNP与肌酸激酶(CK)水平呈有意义的正相关.结论:研究结果强调了核心训练在增强特定生理方面的潜在益处,如红细胞相关参数和脂质代谢,以及有氧能力。此外,观察到的CEG中NT-pro-BNP和CK水平之间的相关性为截肢运动员独特的生理适应提供了有趣的见解。
    Background and Objectives: mortality and morbidity due to cardiovascular causes are frequently experienced in amputees. Research on the effects of chronic exercise on biomarkers and cardiac damage indicators in these individuals is limited. The aim of this study was to investigate the effects of a core training program on brain natriuretic-related peptide, as well as hematological and biochemical parameters in amputee soccer players. Materials and Methods: The participants were randomly allocated to the following two groups: a core exercise group (CEG) and a control group (CG). While the CG continued routine soccer training, the CEG group was included in a core exercise program different from this group. During the study, routine hemogram parameters of the participants, various biochemical markers, and the concentration of brain natriuretic-related peptide (NT-pro-BNP) were analyzed. Results: after the training period, notable improvements in various hematological parameters were observed in both groups. In the CEG, there were significant enhancements in red blood cell count (RBC), hematocrit (HCT), mean corpuscular hemoglobin concentration (MCHC), and mean corpuscular hemoglobin (MCH) values. Similarly, the CG also showed substantial improvements in RBC, HCT, mean corpuscular volume (MCV), MCHC, MCH, red cell distribution width-standard deviation (RDW-SD), platelet-to-lymphocyte ratio (PLCR), mean platelet volume (MPV), and platelet distribution width (PDW). Moreover, in the CEG, serum triglycerides (TG) and maximal oxygen uptake (MaxVO2) exhibited significant increases. Conversely, TG levels decreased in the CG, while high-density lipoprotein (HDL), low-density lipoprotein (LDL), and MaxVO2 levels demonstrated substantial elevations. Notably, the N-terminal pro-brain natriuretic peptide (BNP) levels did not undergo significant changes in either the CEG or the CG following the core exercise program (p > 0.05). However, in the CEG, a meaningful positive correlation was observed between NT-pro-BNP and creatine kinase (CK) levels before and after the core exercise program. Conclusions: the findings emphasized the potential benefits of core training in enhancing specific physiological aspects, such as erythrocyte-related parameters and lipid metabolism, as well as aerobic capacity. Furthermore, the observed correlation between NT-pro-BNP and CK levels in the CEG provides intriguing insights into the unique physiological adaptations of amputee athletes.
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