17,175 results match your criteria morphological parameters

The effects of syringic acid on the properties of MCPA-contaminated soil and the growth of two cucurbit species.

Int J Phytoremediation 2021 Jun 14:1-10. Epub 2021 Jun 14.

UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.

The aim of this study was to determine the influence of syringic acid (SA), a plant secondary metabolite (PSM), on the properties of soil contaminated with 2-methyl-4-chlorophenoxyacetic acid (MCPA) and the condition of two cucurbit species zucchini ( L. 'Atena Polka') and cucumber ( 'Cezar') grown on that soil. It was found that amendment with MCPA and MCPA + SA modified the soil physico-chemical properties. Read More

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Quantitative study of preoperative staging of gastric cancer using intravoxel incoherent motion diffusion-weighted imaging as a potential clinical index.

Eur J Radiol 2021 Mar 4;141:109627. Epub 2021 Mar 4.

Department of Gastrointestinal Surgery, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, 361004, China; Institute of Gastrointestinal Oncology, School of Medicine, Xiamen University, Xiamen, Fujian, 361004, China; Xiamen Municipal Key Laboratory of Gastrointestinal Oncology, Xiamen, Fujian, 361004, China. Electronic address:

Purpose: To determine the utility of intravoxel incoherent motion (IVIM) diffusion-weighted imaging in quantitative analysis of preoperative tumor (T) and node (N) stages of gastric cancer, and to quantify the diagnostic threshold of IVIM parameters for serosal invasion and lymphatic metastasis.

Materials And Methods: From October 2016 to February 2020, 98 patients with gastric cancer who were receiving treatment in Zhongshan Hospital, China, were subject to an IVIM sequence imaging analysis. The IVIM sequence data were imported into software for post-processing of tumor regions of interest, and the IVIM parameters (the microvascular volume fraction (f), the molecular diffusion coefficient (D) and perfusion-related incoherent microcirculation (D*) were calculated. Read More

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The characteristics of distal tears affect false lumen thrombosis rate after thoracic endovascular aortic repair for acute type B dissection.

Interact Cardiovasc Thorac Surg 2021 Jun 14. Epub 2021 Jun 14.

Beijing Advanced Innovation Center of Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China.

Objectives: A low false lumen thrombosis rate (FLTR) is common in patients with type B aortic dissection after they have undergone thoracic endovascular aortic repair, which indicates a poor long-term prognosis. This study aimed to establish a quantitative linear regression model to predict false lumen (FL) thrombosis accurately using morphological parameters.

Methods: In this retrospective study, we included 59 patients diagnosed with acute type B aortic dissection between 2014 and 2017. Read More

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Temperature-responsive morphology formation of a PS--PI copolymer: a dissipative particle dynamics simulation study.

Soft Matter 2021 Jun 14. Epub 2021 Jun 14.

Computational Simulation Modeling Laboratory, Department of Chemistry and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

Self-assembly responsiveness to stimuli of polystyrene-block-polyisoprene (PS-b-PI) diblock copolymer materials is explored by means of classical molecular dynamics (MD) and dissipative particle dynamics (DPD) simulations. A concerted relationship between the parameters achieved from atomistic and DPD simulations is obtained for this molecular recognition as clearly pronounced in a phase transition. Effects of temperature, model size and composition on the morphological formation were systematically investigated for the diblock copolymeric system. Read More

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Using Sensitivity Analysis to Develop a Validated Computational Model of Post-operative Calvarial Growth in Sagittal Craniosynostosis.

Front Cell Dev Biol 2021 26;9:621249. Epub 2021 May 26.

Department of Mechanical Engineering, University College London, London, United Kingdom.

Craniosynostosis is the premature fusion of one or more sutures across the calvaria, resulting in morphological and health complications that require invasive corrective surgery. Finite element (FE) method is a powerful tool that can aid with preoperative planning and post-operative predictions of craniosynostosis outcomes. However, input factors can influence the prediction of skull growth and the pressure on the growing brain using this approach. Read More

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Morphological and Rheological Guided Design for the Microencapsulation Process of in Calcium Alginate Microspheres.

Front Bioeng Biotechnol 2021 28;9:660691. Epub 2021 May 28.

Istituto Italiano di Tecnologia, [email protected], Largo Barsanti e Matteucci, Naples, Italy.

The intestinal microbiota is a real ecosystem composed of several bacterial species and a very huge amount of strains that through their metabolic activities play a crucial role in the development and performance of the immune system and other functions. Microbiota modulation by probiotics establishes a new era into the pharmaceutical and healthcare market. Probiotics play, in fact, an important role in helping and sustaining human health, but in order to produce benefits, their viability must be preserved throughout the production process up to consumption, and in addition, their bioactivity required to be safeguarded while passing through the gastrointestinal tract. Read More

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Wuxal amino (Bio stimulant) improved growth and physiological performance of tomato plants under salinity stress through adaptive mechanisms and antioxidant potential.

Saudi J Biol Sci 2021 Jun 24;28(6):3204-3213. Epub 2021 Apr 24.

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

In the present study, ameliorative capabilities of wuxal amino (bio stimulant) under salt stress has been investigated through adaptive mechanisms and antioxidant potential in tomato plants. In the experiment, two different concentrations (2 cm L and 3 cm L) of wuxal amino through foliar application and soil irrigation were applied to the salt (150 mM) treated tomato plants and then morphological traits, photosynthetic pigments, osmolytes, secondary metabolites, oxidative stress and antioxidant enzymes activity were assessed at 60 days after planting. The results revealed that salt stress decreased the growth parameters, photosynthetic pigments, soluble sugars and soluble protein whereas, content of proline, ascorbic acid, total phenols, malondialdehyde, hydrogen peroxide and the activity of antioxidant enzymes activity increased under salt stress. Read More

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Effects of seasonal variation on the biology and morphology of the dusky cotton bug, (Kirby).

Saudi J Biol Sci 2021 Jun 31;28(6):3186-3192. Epub 2021 Mar 31.

Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt.

The dusky cotton bug (, KIRBY) a pest of several crops. The effects of winter and summer on the biology and morphology was investigated. The sampled eggs of dusky cotton bug (DCB) were kept under controlled environment for biological and morphological investigations. Read More

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Mechanistic Study on Thermally Induced Lattice Stiffening of ZIF-8.

Chem Mater 2021 Jun 19;33(11):4035-4044. Epub 2021 May 19.

Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland.

The flexibility of the ZIF-8 aperture, which inhibits a molecular cutoff of 3.4 Å, can be reduced by rapid heat treatment to obtain CO-selective membranes. However, the early stages of the structural, morphological, and chemical changes responsible for the lattice rigidification remain elusive. Read More

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Impact of aneurysm morphology on aneurysmal subarachnoid hemorrhage severity, cerebral infarction and functional outcome.

J Clin Neurosci 2021 Jul 2;89:343-348. Epub 2021 Jun 2.

Center for Neurosurgery, Medical Faculty and University Hospital, University of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany; Department of Neurosurgery, Hôpitaux Robert Schuman, 9 Rue Edward Steichen, 2540, Luxembourg.

Objective: Aneurysmal subarachnoid hemorrhage (aSAH) is associated with high morbidity. The objective was to evaluate, whether specific morphological aneurysm characteristics could serve as predictive values for aSAH severity, disease-related complications and clinical outcome.

Methods: A total of 453 aSAH patients (mean age: 54. Read More

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Molecular genetic diversity and population structure analyses of rutabaga accessions from Nordic countries as revealed by single nucleotide polymorphism markers.

BMC Genomics 2021 Jun 12;22(1):442. Epub 2021 Jun 12.

Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.

Background: Rutabaga or swede (Brassica napus ssp. napobrassica (L.) Hanelt) varies in root and leaf shape and colour, flesh colour, foliage growth habits, maturity date, seed quality parameters, disease resistance and other traits. Read More

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Objective and quantitative measurement of skin micro-relief by image analysis and application in age-dependent changes.

Skin Res Technol 2021 Jun 12. Epub 2021 Jun 12.

Faculty of Science and Technology, Keio University, Yokohama, Japan.

Background: Skin micro-relief has been researched by a variety of devices and methods, which usually are expensive or complicated. On the other hand, skin micro-relief relates to quite a few parameters, and it is hard to evaluate all of them at the same time. In the study, all parameters related to skin micro-relief are extracted and evaluated by image analysis. Read More

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Biophysical analysis of drug efficacy on C. elegans models for neurodegenerative and neuromuscular diseases.

PLoS One 2021 11;16(6):e0246496. Epub 2021 Jun 11.

Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.

Caenorhabditis elegans has emerged as a powerful model organism for drug screening due to its cellular simplicity, genetic amenability and homology to humans combined with its small size and low cost. Currently, high-throughput drug screening assays are mostly based on image-based phenotyping with the focus on morphological-descriptive traits not exploiting key locomotory parameters of this multicellular model with muscles such as its thrashing force, a critical biophysical parameter when screening drugs for muscle-related diseases. In this study, we demonstrated the use of a micropillar-based force assay chip in combination with a fluorescence assay to evaluate the efficacy of various drugs currently used in treatment of neurodegenerative and neuromuscular diseases. Read More

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Prostatic alterations associated to early weaning and its relation with cocoa powder supplementation. Experimental study in adult wistar rats.

Int Braz J Urol 2021 May 20;47. Epub 2021 May 20.

Departamento de Anatomia, Unidade de Pesquisa Urogenital, Universidade do Estado do Rio de Janeiro, UERJ, Rio de Janeiro, RJ, Brasil.

Early weaning can predispose the offspring to greater risk of developing chronic diseases in adulthood. It is believed that the consumption of functional foods is able to prevent these effects. The aim of this study is to evaluate the effects of maternal and postnatal cocoa powder supplementation on body mass, metabolism, and morphology of the prostate of early weaned Wistar rats. Read More

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Sertoli Cells Possess Immunomodulatory Properties and the Ability of Mitochondrial Transfer Similar to Mesenchymal Stromal Cells.

Stem Cell Rev Rep 2021 Jun 11. Epub 2021 Jun 11.

Department of Cell Biology, Faculty of Science, Charles University, Vinicna 7, Prague 2, 128 43, Vídeňská, Czech Republic.

It is becoming increasingly evident that selecting an optimal source of mesenchymal stromal cells (MSCs) is crucial for the successful outcome of MSC-based therapies. During the search for cells with potent regenerative properties, Sertoli cells (SCs) have been proven to modulate immune response in both in vitro and in vivo models. Based on morphological properties and expression of surface markers, it has been suggested that SCs could be a kind of MSCs, however, this hypothesis has not been fully confirmed. Read More

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The diagnostic value of 2D-speckle tracking echocardiography for identifying subclinical ventricular dysfunction in subjects with early repolarization pattern.

Echocardiography 2021 Jun 10. Epub 2021 Jun 10.

Cardiology Department, KBU Educational and Research Hospital, Karabük, Turkey.

Introduction: Early repolarization pattern (ERP) can exist a silent substrate for arrhytmic events in accordance with the previous studies which have shown there has been evidence of morphological changes in left ventricle (LV) in ERP subjects. Despite structural changes in ERP subjects, it has not exactly known whether a change in LV functional parameters occur in ERP. The aim of our study was to investigate LV functional parameters in ERP athletes evaluated by 2D- speckle tracking echocardiography (2D-STE). Read More

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Changes of Neuroretinal Rim and Retinal Nerve Fiber Layer Thickness Assessed by Optical Coherence Tomography After Filtration Surgery in Glaucomatous Eyes.

Clin Ophthalmol 2021 3;15:2335-2344. Epub 2021 Jun 3.

Ludwig-Maximilians University, Eye Clinic, Campus Innenstadt, Munich, D-80336, Germany.

Purpose: Lowering the intraocular pressure (IOP) in patients with primary open-angle glaucoma (POAG) with filtration surgery can induce morphological changes to the bulbus and structures of the retina. In this study, we have evaluated changes of Bruch's membrane-based parameters and retinal nerve fiber layer (RNFL) derived by spectral-domain optical coherence tomography (SD-OCT) in eyes that have undergone glaucoma filtration surgery.

Patients And Methods: SD-OCT imaging of the optic nerve head (ONH) and of the RNFL was performed in 54 eyes of 54 patients with medically uncontrolled POAG before and after IOP-lowering surgery (trabeculectomy or deep sclerectomy). Read More

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Dispersion of metallic/ceramic matrix nanocomposite material through porous surfaces in magnetized hybrid nanofluids flow with shape and size effects.

Sci Rep 2021 Jun 10;11(1):12271. Epub 2021 Jun 10.

Department of Mathematics, Huzhou University, Huzhou, 313000, People's Republic of China.

Matrix nanocomposites are high performance materials possessing unusual features along with unique design possibilities. Due to extraordinary thermophysical characteristic contained by these matrix nanocomposites materials they are useful in several areas ranging from packaging to biomedical applications. Being an environment friendly, utilization of nanocomposites offer new technological opportunities for several sectors of aerospace, automotive, electronics and biotechnology. Read More

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Reduced photoreceptor outer segment layer thickness and association with vision in amblyopic children and adolescents with unilateral high myopia.

Curr Eye Res 2021 Jun 10. Epub 2021 Jun 10.

Joint Shantou International Eye Center, Shantou University & the Chinese University of Hong Kong, Shantou, China,515041.

Purpose: To quantitatively compare reflectivity and other morphological changes of the photoreceptors of normal eyes with amblyopic eyes using the longitudinal reflectance profile (LRP) on swept-source optical coherence tomography (SS-OCT) images in children and adolescents with unilateral high myopia. The relationships between OCT parameters and visual acuity were investigated.

Method: Twenty-six amblyopes with unilateral high myopia and 34 age-, axial length- and spherical equivalent-matched normal controls were recruited. Read More

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The bank of swimming organisms at the micron scale (BOSO-Micro).

PLoS One 2021 10;16(6):e0252291. Epub 2021 Jun 10.

Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge, United Kingdom.

Unicellular microscopic organisms living in aqueous environments outnumber all other creatures on Earth. A large proportion of them are able to self-propel in fluids with a vast diversity of swimming gaits and motility patterns. In this paper we present a biophysical survey of the available experimental data produced to date on the characteristics of motile behaviour in unicellular microswimmers. Read More

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Emergence of Radiomics: Novel Methodology Identifying Imaging Biomarkers of Disease in Diagnosis, Response, and Progression.

SM J Clin Med Imaging 2018 15;4(1). Epub 2018 Mar 15.

Department of Radiology, University of Mississippi Medical Center, USA.

Radiomics is an emerging area within clinical radiology research. It seeks to take full advantage of all the information contained in multiple medical imaging modalities. With a radiomics approach, medical images are not limited to providing only a qualitative assessment but can also provide quantitative data by parameterizing image features. Read More

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Reduced retinal vessel density in COVID-19 patients and elevated D-dimer levels during the acute phase of the infection.

Med Clin (Engl Ed) 2021 Jun 5;156(11):541-546. Epub 2021 Jun 5.

Profesor y jefe de servicio de Oftalmología, Hospital Clínico San Carlos; Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid (UCM); IdISSC, Madrid, Spain.

Purpose: To describe macular vessel density and perfusion in COVID-19 patients using coherence tomography angiography (OCTA) and to investigate whether there is a correlation between retinal vascular abnormalities and clinical and laboratory parameters.

Methods: Cross-sectional analysis conducted at the Hospital Clinico San Carlos in Madrid, Spain. Patients with laboratory-confirmed COVID-19 that were attended in the Emergency Department (ED) from March 23 to March 29, 2020 were included. Read More

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Red blood cell recognition and posture estimation in microfluidic chip based on lensless imaging.

Biomicrofluidics 2021 May 28;15(3):034109. Epub 2021 May 28.

Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China.

On the one hand, lensless imaging technology has become one of the key technologies to achieve point-of-care testing; on the other hand, microfluidic technology has shown great application potential in the field of biological detection. Using mainstream lensless imaging technology to achieve biological cell imaging in microfluidic chips has technical limitations. In particular, it is more difficult to achieve lensless imaging for non-spherical cells in microfluidic chips such as red blood cells. Read More

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Formation of three-dimensional bicontinuous structures via molten salt dealloying studied in real-time by in situ synchrotron X-ray nano-tomography.

Nat Commun 2021 Jun 9;12(1):3441. Epub 2021 Jun 9.

Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, USA.

Three-dimensional bicontinuous porous materials formed by dealloying contribute significantly to various applications including catalysis, sensor development and energy storage. This work studies a method of molten salt dealloying via real-time in situ synchrotron three-dimensional X-ray nano-tomography. Quantification of morphological parameters determined that long-range diffusion is the rate-determining step for the dealloying process. Read More

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Mid-Infrared Luminescence of the High Stability Perovskite CsPbErBr-ZrF-BaF-LaF-AlF-NaF Fluoride Glass.

ACS Appl Mater Interfaces 2021 Jun 9. Epub 2021 Jun 9.

School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, and Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.

Perovskites have been studied because of their adjustable wavelength range, high color purity, and wide color gamut. However, they still face some problems such as poor stability and insufficient infrared luminescence. The perovskite glass can improve the stability and luminescence properties of the perovskite. Read More

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Resolving species boundaries in a recent radiation with the Angiosperms353 probe set: the Lomatium packardiae/L. anomalum clade of the L. triternatum (Apiaceae) complex.

Am J Bot 2021 Jun 8. Epub 2021 Jun 8.

Department of Biological Sciences, Boise State University, Boise, ID, 83725, USA.

Premise: Speciation not associated with morphological shifts is challenging to detect unless molecular data are employed. Using Sanger-sequencing approaches, the Lomatium packardiae/L. anomalum subcomplex within the larger Lomatium triternatum complex could not be resolved. Read More

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The Relationship of Morphological-Hemodynamic Characteristics, Inflammation, and Remodeling of Aneurysm Wall in Unruptured Intracranial Aneurysms.

Transl Stroke Res 2021 Jun 9. Epub 2021 Jun 9.

Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.119 South 4th Ring West Road, Fengtai District, Beijing, China.

Aneurysm wall remodeling (AWR) is an important pathological characteristic in aneurysm wall, which was characterized by abnormal histological structure and inflammation infiltration. In the present study, the aim is to determine the relationships of morphological-hemodynamic characteristics, inflammation, and AWR in intracranial aneurysms (IAs), as well as the pathological basis of morphological-hemodynamic predictors to achieve IA development. For this end, 113 unruptured IAs were prospectively collected from 110 cases. Read More

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MRI Evaluation of Complete Response of Locally Advanced Rectal Cancer After Neoadjuvant Therapy: Current Status and Future Trends.

Cancer Manag Res 2021 1;13:4317-4328. Epub 2021 Jun 1.

Department of Radiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China.

Complete tumor response can be achieved in a certain proportion of patients with locally advanced rectal cancer, who achieve maximal response to neoadjuvant therapy (NAT). For these patients, a watch-and-wait (WW) or nonsurgical strategy has been proposed and is becoming widely practiced in order to avoid unnecessary surgical complications. Therefore, a non-invasive, reliable diagnostic tool for accurately evaluating complete tumor response is needed. Read More

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The automatic quantification of morphological features of pectus excavatum based on three-dimensional images.

Semin Thorac Cardiovasc Surg 2021 Jun 5. Epub 2021 Jun 5.

Department of Surgery, Division of General Thoracic Surgery, Zuyderland Medical Center, Heerlen, the Netherlands. Electronic address:

Objective: Visual examination and severity quantification are essential for clinical decision making in patients with pectus excavatum. Yet, visual assessment is prone to inter- and intra-observer variability and current quantitative methods are inadequate. This study aims to develop and evaluate a novel, automatic and non-invasive method to objectively quantify pectus excavatum morphology based on three-dimensional images. Read More

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Corneal Endothelium:A Promising Quantitative Index for Graves Ophthalmopathy Activity Evaluation.

Am J Ophthalmol 2021 Jun 5. Epub 2021 Jun 5.

Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong Province, China. Electronic address:

Purpose: To investigate the corneal endothelium damage in Graves ophthalmopathy (GO) and its role as a promising quantitative index to evaluate GO activity.

Design: Cross-sectional study.

Methods: This study included 128 eyes of 64 patients with GO. Read More

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