2,997 results match your criteria respiration growing

Effect of septal deviation on nasomaxillary shape: A geometric morphometric study.

J Anat 2021 Jun 19. Epub 2021 Jun 19.

Department of Orthodontics and Dentofacial Orthopedics, Lebanese University, Beirut, Lebanon.

Nasal cavities in their primitive stage communicate with the oral cavity until the 8th week of intrauterine life where the posterior palate initiates its development. Hence, starting from the initial growth phases, a significant connection lays between the nasal structures and the maxillary bone and witnessing key functional roles, among which the respiration. Proper nasal breathing has been proven to be a crucial factor for the maturity of the craniofacial complex, and obstruction of the respiratory airway due to nasal septum deviation can generate clinically significant reduction of the nasal airflow. Read More

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Plant community composition alters moisture and temperature sensitivity of soil respiration in semi-arid shrubland.

Oecologia 2021 Jun 18. Epub 2021 Jun 18.

Department of Biology, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4614, USA.

Soil respiration (Rs) is the second largest carbon (C) flux to the atmosphere and our understanding of how Rs and its components shift with plant-community composition remains an important question. We used high-frequency soil respiration measurements and root exclusion to evaluate how Rs, autotrophic respiration (Ra) and heterotrophic respiration (Rh) vary between a semi-arid perennial shrub community and annual invasive community. Over two growing seasons, total Rs was 40% higher under annual vegetation compared to shrubs. Read More

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Novel Mitochondria-Targeted Triphenylphosphonium Conjugates of Linear β-Phosphorylated Nitrones : Preparation, P NMR Mitochondrial Distribution, EPR Spin Trapping Reporting, and Site-Directed Antiapoptotic Properties.

Methods Mol Biol 2021 ;2275:65-85

Aix Marseille Univ, CNRS, ICR, UMR 7273, Sondes Moléculaires en Biologie et Stress Oxydant, Marseille, France.

The mitochondrion can be considered as the metabolic powerhouse of the cell, having a key impact on energy production, cell respiration, and intrinsic cell death. Mitochondria are also the main source of endogenous reactive oxygen species , including free radicals (FR), which are physiologically involved in signaling pathways but may promote cell damage when unregulated or excessively formed in inappropriate locations. A variety of chronic pathologies have been associated with FR-induced mitochondrial dysfunctions , such as cancer, age-related neurodegenerative diseases, and metabolic syndrome. Read More

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January 2021

Selenogenome and AMPK signal insight into the protective effect of dietary selenium on chronic heat stress-induced hepatic metabolic disorder in growing pigs.

J Anim Sci Biotechnol 2021 Jun 12;12(1):68. Epub 2021 Jun 12.

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.

Background: Chronic heat stress (CHS) disrupts hepatic metabolic homeostasis and jeopardizes product quality of pigs. Selenium (Se) may regulate the metabolic state through affect selenoprotein. Thus, we investigate the protective effect of dietary hydroxy-4-methylselenobutanoic acid (HMSeBA) on CHS induced hepatic metabolic disorder in growing pigs, and the corresponding response of selenoprotein. Read More

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Radar-Based, Simultaneous Human Presence Detection and Breathing Rate Estimation.

Sensors (Basel) 2021 May 19;21(10). Epub 2021 May 19.

School of Electrical and Computer Engineering, Ben-Gurion University of The Negev, Beer-Sheva 8410501, Israel.

Human presence detection is an application that has a growing need in many industries. Hotel room occupancy is critical for electricity and energy conservation. Industrial factories and plants have the same need to know the occupancy status to regulate electricity, lighting, and energy expenditures. Read More

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Manipulating phloem transport affects wood formation but not local nonstructural carbon reserves in an evergreen conifer.

Plant Cell Environ 2021 May 27. Epub 2021 May 27.

School of Informatics, Computing, and Cyber Security, Northern Arizona University, Flagstaff, Arizona, USA.

How variations in carbon supply affect wood formation remains poorly understood in particular in mature forest trees. To elucidate how carbon supply affects carbon allocation and wood formation, we attempted to manipulate carbon supply to the cambial region by phloem girdling and compression during the mid- and late-growing season and measured effects on structural development, CO efflux and nonstructural carbon reserves in stems of mature white pines. Wood formation and stem CO efflux varied with a location relative to treatment (i. Read More

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Seagrass blue carbon stocks and sequestration rates in the Colombian Caribbean.

Sci Rep 2021 May 26;11(1):11067. Epub 2021 May 26.

Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani D'Estudis Avançats, Miquel Marquès 21, 07190, Esporles, Spain.

Seagrass ecosystems rank amongst the most efficient natural carbon sinks on earth, sequestering CO through photosynthesis and storing organic carbon (C) underneath their soils for millennia and thereby, mitigating climate change. However, estimates of C stocks and accumulation rates in seagrass meadows (blue carbon) are restricted to few regions, and further information on spatial variability is required to derive robust global estimates. Here we studied soil C stocks and accumulation rates in seagrass meadows across the Colombian Caribbean. Read More

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Boreal forest soil carbon fluxes one year after a wildfire: Effects of burn severity and management.

Glob Chang Biol 2021 May 24. Epub 2021 May 24.

Centre for Environmental and Climate Science, Lund University, Lund, Sweden.

The extreme 2018 hot drought that affected central and northern Europe led to the worst wildfire season in Sweden in over a century. The Ljusdal fire complex, the largest area burnt that year (8995 ha), offered a rare opportunity to quantify the combined impacts of wildfire and post-fire management on Scandinavian boreal forests. We present chamber measurements of soil CO and CH  fluxes, soil microclimate and nutrient content from five Pinus sylvestris sites for the first growing season after the fire. Read More

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Biostimulation potential of biochar for remediating the crude oil contaminated soil and plant growth.

Saudi J Biol Sci 2021 May 22;28(5):2667-2676. Epub 2021 Mar 22.

Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.

Crude oil contamination is a serious environmental threat to soil and plants growing in it. Biochar has the potential of biostimulation for remediation of crude oil-contaminated soil. Therefore, the current research was designed to analyze the bio-stimulatory impact of biochar for remediating the crude oil contaminated soil (10%, and 15%), and growth of maize under glasshouse conditions. Read More

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Placental gene networks at the interface between maternal PM exposure early in gestation and reduced infant birthweight.

Environ Res 2021 Aug 18;199:111342. Epub 2021 May 18.

Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.

Background: A growing body of evidence links maternal exposure to particulate matter <2.5 μM in diameter (PM) and deviations in fetal growth. Several studies suggest that the placenta plays a critical role in conveying the effects of maternal PM exposure to the developing fetus. Read More

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Mutual effects of crude oil and plants in contaminated soil: a field study.

Environ Geochem Health 2021 May 20. Epub 2021 May 20.

Agrophysical Research Institute, 14 Grazhdanskiy pr., Saint Petersburg, Russia, 195220.

The effect of oil contamination on growth of mono- and dicotyledonous plants (clover and ryegrass), on the one hand, and the effect of plants on oil biodegradation in soil, on the other hand, were studied in a long-term field experiment. It was found that plants respond differently to oil contamination of soddy-podzolic soil. Clover was more resistant to oil than ryegrass. Read More

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Media composition and O levels determine effects of 17β-Estradiol on mitochondrial bioenergetics and cellular reactive oxygen species.

Am J Physiol Cell Physiol 2021 05 19. Epub 2021 May 19.

Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.

Estradiol (E) and selective estrogen receptor modulators (SERMs) have broad-ranging cellular effects that include mitochondrial respiration and reactive oxygen species (ROS) metabolism. Many of these effects have been studied using cell culture models. Recent advances have revealed the extent to which cellular metabolism is affected by the culture environment. Read More

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Metformin treatment response is dependent on glucose growth conditions and metabolic phenotype in colorectal cancer cells.

Sci Rep 2021 May 18;11(1):10487. Epub 2021 May 18.

Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, Stavanger, Norway.

Cancer cells exhibit altered metabolism, a phenomenon described a century ago by Otto Warburg. However, metabolic drug targeting is considered an underutilized and poorly understood area of cancer therapy. Metformin, a metabolic drug commonly used to treat type 2 diabetes, has been associated with lower cancer incidence, although studies are inconclusive concerning effectiveness of the drug in treatment or cancer prevention. Read More

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Sexual dimorphism in adipose tissue mitochondrial function and metabolic flexibility in obesity.

Int J Obes (Lond) 2021 May 17. Epub 2021 May 17.

Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, LS29JT, UK.

Objective: The prevalence of obesity is growing globally. Adiposity increases the risk for metabolic syndrome, type 2 diabetes and cardiovascular disease. Adipose tissue distribution influences systemic metabolism and impacts metabolic disease risk. Read More

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Targeting neovascularization and respiration of tumor grafts grown on chick embryo chorioallantoic membranes.

PLoS One 2021 17;16(5):e0251765. Epub 2021 May 17.

Institute of Veterinary Physiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

Since growing tumors stimulate angiogenesis, via vascular endothelial growth factor (VEGF), angiogenesis inhibitors (AIs, blockers of the VEGF signaling pathway) have been introduced to cancer therapy. However, AIs often yielded only modest and short-lived gains in cancer patients and more invasive tumor phenotypes in animal models. Combining anti-VEGF strategies with lactate uptake blockers may boost both efficacy and safety of AIs. Read More

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Inhaled antibiotics during mechanical ventilation-why it will work.

Ann Transl Med 2021 Apr;9(7):598

CHRU Tours, Médecine Intensive Réanimation, Tours, France.

Inhaled antibiotics are a common therapy among patients suffering recurrent or chronic pulmonary infections. Their use is less frequent in acutely ill patients despite a strong theoretical rationale and growing evidence of their efficiency, safety and beneficial effect on reducing bacterial resistance emergence. Clinical trials of inhaled antibiotics have shown contradictory results among mechanically ventilated patients. Read More

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Denitrifying bacteria respond to and shape microscale gradients within particulate matrices.

Commun Biol 2021 May 13;4(1):570. Epub 2021 May 13.

Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.

Heterotrophic denitrification enables facultative anaerobes to continue growing even when limited by oxygen (O) availability. Particles in particular provide physical matrices characterized by reduced O permeability even in well-oxygenated bulk conditions, creating microenvironments where microbial denitrifiers may proliferate. Whereas numerical particle models generally describe denitrification as a function of radius, here we provide evidence for heterogeneity of intraparticle denitrification activity due to local interactions within and among microcolonies. Read More

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Supplemental Learning in Respiratory Physiology for Healthcare Professionals Towards Successful Treatment of COVID-19.

Front Physiol 2021 20;12:624528. Epub 2021 Apr 20.

School of Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom.

The immunological and pathophysiological response to COVID-19 can cause severe respiratory impairment affecting gas exchange and lung mechanics. Such was the scale of the respiratory support needed during the first wave of the pandemic, that recruitment of non-respiratory clinical staff was essential to help deal with the growing number of cases. It quickly became apparent that it was vital to rapidly equip these healthcare professionals with appropriate physiological knowledge and practical skills if therapies were to be applied effectively. Read More

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Antifibrotic Therapy: Is There a Role in Myositis-Interstitial Lung Disease?

Respiration 2021 May 5:1-10. Epub 2021 May 5.

Division of Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.

Interstitial lung disease (ILD) is a cause of substantial morbidity and mortality amongst autoimmune diseases, including myositis. Despite first-line therapy with immunosuppression, many inflammatory ILDs advance to a fibrotic stage. In such patients, progressive fibrosis may be amenable to treatment with antifibrotic medications, which were initially studied and approved for the treatment of idiopathic pulmonary fibrosis. Read More

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Rapamycin administration during an acute heat stress challenge in growing pigs.

J Anim Sci 2021 May;99(5)

Department of Animal Science, Iowa State University, Ames, IA 50011.

Study objectives were to determine the effects of rapamycin (Rapa) on biomarkers of metabolism and inflammation during acute heat stress (HS) in growing pigs. Crossbred barrows (n = 32; 63.5 ± 7. Read More

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Effects of mechanical ventilation on indoor air quality and occupant health status in energy-efficient homes: A longitudinal field study.

Sci Total Environ 2021 Sep 26;785:147324. Epub 2021 Apr 26.

Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea. Electronic address:

Despite the growing interest in energy-efficient homes (EEHs), there is still a lack of evidence regarding whether the mechanical ventilation system of an EEH positively or negatively impacts indoor air quality (IAQ) and the health and wellbeing of occupants. This study aimed to evaluate the IAQ level and daily health symptoms of adults and children living in EEHs compared to conventional buildings over the course of one year. A two-way mixed analysis of variance was conducted to compare the level of IAQ between the two housing types. Read More

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September 2021

Drivers of carbon flux in drip irrigation maize fields in northwest China.

Carbon Balance Manag 2021 Apr 30;16(1):12. Epub 2021 Apr 30.

Center of Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.

Background: Under the escalating threat to sustainable development from the global increase in carbon dioxide concentrations, the variations in carbon flux in the farmland ecosystem and their influencing factors have attracted global attention. Over the past few decades, with the development of eddy covariance technology, the carbon fluxes of farmlands have been determined in many countries. However, studies are very limited for drip irrigation maize the arid regions in northwestern China, which covers a large area where a mixed mode of agriculture and grazing is practiced. Read More

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Targeting the Mevalonate Pathway for Treating Esophageal Cancer.

J Gastrointest Cancer 2021 Jun 30;52(2):819-821. Epub 2021 Apr 30.

Cumming School of Medicine, Medical Centre, University of Calgary, 1403 29th Street NW Foothills, Calgary, AB, T2N 2T9, Canada.

Purpose: To asseess whether the mevalonate pathway can be targeted in managing patients with esophageal cancer.

Methods: This a narrative review of peer-revieweed publications indexed in MedLine PubMed. The search was conducted by using "Esophageal cancer", "Mevalonate pahtway", "Statins", and "Translational research. Read More

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Correlation of Key Physiological Properties of Isolates with Environment of Origin.

Appl Environ Microbiol 2021 Jun 11;87(13):e0073121. Epub 2021 Jun 11.

Department of Microbiology, University of Massachusetts-Amherst, Amherst, Massachusetts, USA.

It is known that the physiology of species can differ significantly, but the ecological impact of these differences is unclear. We recovered two strains of from two different ecosystems with a similar enrichment and isolation method. Both strains had the same ability to metabolize organic substrates and participate in direct interspecies electron transfer but also had major physiological differences. Read More

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The Dynamic Ion Motive Force Powering the Bacterial Flagellar Motor.

Front Microbiol 2021 13;12:659464. Epub 2021 Apr 13.

Centre de Biologie Structurale (CBS), INSERM, CNRS, Université Montpellier, Montpellier, France.

The bacterial flagellar motor (BFM) is a rotary molecular motor embedded in the cell membrane of numerous bacteria. It turns a flagellum which acts as a propeller, enabling bacterial motility and chemotaxis. The BFM is rotated by stator units, inner membrane protein complexes that stochastically associate to and dissociate from individual motors at a rate which depends on the mechanical and electrochemical environment. Read More

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Evaluation on Net Energy of Defatted Rice Bran from Different Origins and Processing Technologies Fed to Growing Pigs.

Animals (Basel) 2021 Apr 12;11(4). Epub 2021 Apr 12.

State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.

The study was conducted to determine and compare the net energy (NE) of defatted rice bran (DFRB) from different sources and different processing technology fed to growing pigs using indirect calorimetry. Thirty-six growing barrows (30.7 ± 3. Read More

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Interaction of supplementary L-carnitine and dietary energy levels on feed utilization and blood constituents in New Zealand White rabbits reared under summer conditions.

Trop Anim Health Prod 2021 Apr 22;53(2):279. Epub 2021 Apr 22.

Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt.

In the summer season, the harmful effects of high ambient temperatures on rabbit productivity have attained global interest. Therefore, the use of new nutritional strategies to improve heat tolerance in rabbits has become highly needed. In the current experiment, the effect of the addition of L-carnitine (LC) to normal (NE) or high-energy (HE) diets of growing rabbits reared under summer conditions on their productive performance, physiological indicators, and carcass characteristics was assessed. Read More

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Identifying and classifying macroinvertebrate indicator signature traits and ecological preferences along urban pollution gradient in the Niger Delta.

Environ Pollut 2021 Jul 9;281:117076. Epub 2021 Apr 9.

Department of Animal Biology (Applied Hydrobiology and Ecotoxicology Unit), Federal University of Technology, Minna, Nigeria. Electronic address:

Urbanisation of riverine landscape is an increasing threat to the functionality of river ecosystems. In this study, we identify and classify macroinvertebrates indicator signature traits and ecological preferences.We hypothesised that urban pollution would differentially influence the distribution of macroinvertebrate traits and ecological preferences along a gradient of water quality deterioration. Read More

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Homozygous missense mutation in UQCRC2 associated with severe encephalomyopathy, mitochondrial complex III assembly defect and activation of mitochondrial protein quality control.

Biochim Biophys Acta Mol Basis Dis 2021 Aug 15;1867(8):166147. Epub 2021 Apr 15.

Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic. Electronic address:

The mitochondrial respiratory chain (MRC) complex III (CIII) associates with complexes I and IV (CI and CIV) into supercomplexes. We identified a novel homozygous missense mutation (c.665G>C; p. Read More

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