Objective: To evaluate the difference and correlation of 24-hour energy expenditure in patients with multiple trauma receiving mechanical ventilation predicted by indirect calorimetry (IC) and HB formula.
Methods: 140 patients with multiple trauma receiving mechanical ventilation admitted to intensive care unit (ICU) of the General Hospital of Ningxia Medical University from December 1st, 2016 to August 31st, 2017 were enrolled. The 24-hour energy expenditure of patients was repeatedly measured at 1, 3, 5, and 7 days after ICU admission by IC method, and the 24-hour energy expenditure measured by IC method was used as the "gold standard" to calculate the 24-hour kilogram body weight energy expenditure. The 24-hour energy expenditure value measured by IC method was compared with the 24-hour energy expenditure predicted value calculated by HB formula method, the consistency of the two measurement methods was detected by Bland-Altman method, and the correlation between the two measurement methods was analyzed by Pearson method and the linear equation was fitted.
Results: The 24-hour energy expenditure of patients at 1, 3, 5 and 7 days after ICU was repeatedly measured by IC method for 501 times, and there was no significant difference in 24-hour energy expenditure (kJ/d: 8 163.1±1 599.4, 8 221.1±1 694.7, 8 445.8±1 756.4, 8 707.0±1 820.7, respectively, F = 2.451, P = 0.063) and 24-hour kilogram body weight energy expenditure (kJ×kg×d: 120.5±18.9, 121.4±19.7, 122.7±19.3, 121.4±19.3, respectively, F = 0.252, P = 0.860) at each time point, indicating that the first week of multi-injury patients had no significant changes in energy metabolism. The consistency between the 24-hour energy expenditure measured by IC method on the first day [(8 163.1±1 599.4) kJ/d] and that predicted by HB formula method [(6 568.8±782.0) kJ/d] was analyzed. The results showed that there was significant bias between the two methods, with an average bias of -(1 591.8±121.4) kJ/d, but the correlation analysis showed that there was a linear correlation between them (r = 0.439, P = 0.000), using one-way regression, the fitted linear equation was Y = 2 270.5+0.897X (X was 24-hour energy expenditure predicted by the HB formula).
Conclusions: The energy metabolism of patients with multiple trauma receiving mechanical ventilation is not obvious within 1 week. The HB formula method underestimates the 24-hour energy expenditure of patients. The prediction formula can be used to correct the HB formula and further to improve the accuracy of predicting the 24-hour energy consumption of patients.
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http://dx.doi.org/10.3760/cma.j.issn.2095-4352.2018.010.008 | DOI Listing |
Commun Biol
January 2025
Division of Geriatrics, Department of Medicine, SMPH, University of Wisconsin-Madison, Madison, WI, USA.
Changes in brain mitochondrial metabolism are coincident with functional decline; however, direct links between the two have not been established. Here, we show that mitochondrial targeting via the adiponectin receptor activator AdipoRon (AR) clears neurofibrillary tangles (NFTs) and rescues neuronal tauopathy-associated defects. AR reduced levels of phospho-tau and lowered NFT burden by a mechanism involving the energy-sensing kinase AMPK and the growth-sensing kinase GSK3b.
View Article and Find Full Text PDFSci Rep
January 2025
Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
A series of novel phenylamino quinazolinone derivatives were designed and synthesized as potential tyrosinase inhibitors. Among these compounds, 9r emerged as the most potent derivative, exhibiting IC values of 17.02 ± 1.
View Article and Find Full Text PDFJ Nanobiotechnology
January 2025
Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, People's Republic of China, Key Laboratory of Grassland Resources, Ministry of Education, People's Republic of China, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China.
Selenium promotes plant growth and improves nutritional quality, and the role of nano-selenium in alfalfa in regulating nutritional quality is unknown. In this study, using the N labeling method, it was found that nano-selenium could promote plant nitrogen metabolism and photosynthesis by increasing the light energy capture capacity and the activities of key enzymes of the nitrogen metabolism process, leading to an increase in alfalfa nitrogen accumulation and dry matter content. The transcriptome and metabolome revealed that nano-selenium mainly affected the pathways of 'biosynthesis of amino acids', 'starch and sucrose metabolism', 'pentose and glucuronate interconversions', 'pentose phosphate pathway', and 'flavonoid biosynthesis'.
View Article and Find Full Text PDFBMC Chem
January 2025
Energy Systems Engineering Department, Engineering Faculty, Adana Alparslan Türkeş Science and Technology University, 01250, Adana, Türkiye.
Although the antiallergic properties of compounds such as CAPE, Melatonin, Curcumin, and Vitamin C have been poorly discussed by experimental studies, the antiallergic properties of these famous molecules have never been discussed with calculations. The histamine-1 receptor (H1R) belongs to the family of rhodopsin-like G-protein-coupled receptors expressed in cells that mediate allergies and other pathophysiological diseases. In this study, pharmacological activities of FDA-approved second generation H1 antihistamines (Levocetirizine, desloratadine and fexofenadine) and molecules such as CAPE, Melatonin, Curcumin, Vitamin C, ADMET (Absorption, Distribution, Metabolism, Excretion, Toxicity) profiles, density functional theory (DFT), molecular docking, biological targets and activities were compared by calculating.
View Article and Find Full Text PDFJ Anim Sci Biotechnol
January 2025
College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Background: The diverse types and processing methods of grains intricately influence the sites and digestibility of starch digestion, thereby impacting energy utilization. This study aimed to explore the impact of grain variety and processing methods on the net energy (NE) in dairy goats, analyzing these effects at the level of nutrient digestion and metabolism.
Methods: Eighteen castrated Guanzhong dairy goats (44.
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