44,452 results match your criteria additional species

Comparative study of HSO/SO versus HPO functionalities anchored on TiO-supported antimony oxide-vanadium oxide-cerium oxide composites for low-temperature NO activation.

J Hazard Mater 2021 Apr 6;416:125780. Epub 2021 Apr 6.

Extreme Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, South Korea. Electronic address:

TiO-supported antimony oxide-vanadium oxide-cerium oxide (SVC) imparts Lewis acidic (L)/Brönsted acidic (B) sites, labile (O)/mobile oxygens (O), and oxygen vacancies (O) for selective catalytic NO reduction (SCR). However, these species are harmonious occasionally, readily poisoned by HO/sulfur/phosphorus/carbon, thus limiting SCR performance of SVC. Herein, a synthetic means is reported for immobilizing HSO/SO (A= 3-4) or HPO (B= 1-3) on the L sites of SVC to form SVC-S and SVC-P. Read More

View Article and Full-Text PDF

Molecular identification of Sporothrix species in a hyperendemic area in Peru.

J Infect Public Health 2021 Feb 23;14(5):670-673. Epub 2021 Feb 23.

Facultad de Ciencias, Universidad Nacional de San Antonio Abad del Cusco (UNSAAC), Cusco, Peru.

To date, there have been no molecular typing studies to identify the Sporothrix species circulating in Abancay, a hyperendemic area of sporotrichosis in Peru. To identify six clinical isolates of the Sporothrix schenckii complex from Abancay, Peru, we used PCR-sequencing of the calmodulin gene, and a phylogenetic analysis was conducted with these and additional sequences from GenBank. All clinical isolates were identified as S. Read More

View Article and Full-Text PDF
February 2021

Method optimization of oxylipin hydrolysis in nonprocessed bovine milk indicates that the majority of oxylipins are esterified.

J Food Sci 2021 Apr 17. Epub 2021 Apr 17.

Department of Food Science and Technology, University of California, Davis, One Shields Avenue, Davis, California, USA.

The oxidation of polyunsaturated fatty acids produces bioactive primary oxidation products known as oxylipins. In many biological matrices, the majority of oxylipins are bound (i.e. Read More

View Article and Full-Text PDF

Development and validation of a forensic 6-dye multiplex assay with 29 STR loci.

Electrophoresis 2021 Apr 16. Epub 2021 Apr 16.

Department of Forensic Science, Medical School of Soochow University, Suzhou, 215123, P. R. China.

This paper describes the development and validation of a novel 31-locus, 6-dye STR multiplex system which is designed to meet the needs of the rapidly growing Chinese forensic database. This new assay combines 20 extended-CODIS core loci (D3S1358, D5S818, TPOX, CSF1PO, TH01, vWA, D7S820, D21S11, D8S1179, D18S51, D16S539, D13S317, FGA, D1S1656, D2S441, D2S1338, D10S1248, D12S391, D19S433 and D22S1045), 9 highly polymorphic loci in Chinese Han population (D3S3045, D6S1043, D6S477, D8S1132, D10S1435, D15S659, D19S253, Penta D and Penta E) and two gender determining markers, amelogenin and Y-Indel, which could amplify DNA from extracts, as well as direct amplification from substrates. To demonstrate the suitability for forensic applications, this system was validated by precision and accuracy evaluation, concordance tests, case sample tests, sensitivity, species specificity, stability, stutter calculation and DNA mixtures, according to the guidelines described by the Scientific Working Group on DNA Analysis Methods (SWGDAM) and regulations published by the China Ministry of Public Security. Read More

View Article and Full-Text PDF

On the origin and evolution of SARS-CoV-2.

Exp Mol Med 2021 Apr 16. Epub 2021 Apr 16.

School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the ongoing global outbreak of a coronavirus disease (herein referred to as COVID-19). Other viruses in the same phylogenetic group have been responsible for previous regional outbreaks, including SARS and MERS. SARS-CoV-2 has a zoonotic origin, similar to the causative viruses of these previous outbreaks. Read More

View Article and Full-Text PDF

Phylogenomic and morphological relationships among the botryllid ascidians (Subphylum Tunicata, Class Ascidiacea, Family Styelidae).

Sci Rep 2021 Apr 16;11(1):8351. Epub 2021 Apr 16.

Biology Department and Estuarine and Ocean Science Center, San Francisco State University, 3150 Paradise Drive, Tiburon, CA, 94920, USA.

Ascidians (Phylum Chordata, Class Ascidiacea) are a large group of invertebrates which occupy a central role in the ecology of marine benthic communities. Many ascidian species have become successfully introduced around the world via anthropogenic vectors. The botryllid ascidians (Order Stolidobranchia, Family Styelidae) are a group of 53 colonial species, several of which are widespread throughout temperate or tropical and subtropical waters. Read More

View Article and Full-Text PDF

Investigating the Utility of Humanized PXR-CAR-CYP3A4/7 Mouse Model to Assess CYP3A-Mediated Induction.

Drug Metab Dispos 2021 Apr 16. Epub 2021 Apr 16.

Preclinical Development Sciences, ORIC Pharmaceuticals, United States

Clinical induction liability is assessed with human hepatocytes. However, underpredictions in the magnitude of clinical induction have been reported. Unfortunately, in vivo studies in animals do not provide additional insight due to species differences in drug metabolizing enzymes and their regulatory pathways. Read More

View Article and Full-Text PDF

Apelin-13 Protects Corpus Cavernosum Against Fibrosis Induced by High-Fat Diet in an MMP-Dependent Mechanism.

J Sex Med 2021 Apr 13. Epub 2021 Apr 13.

Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.

Background: An increased fibrosis of the corpora cavernosa is a prevalent process that underlies most cases of erectile dysfunction. Apelin, an endogenous circulating peptide, has been documented as an important effector on cardiovascular homeostasis, controlling vascular function and reducing fibrosis in multiple pathological conditions. Recently, initial studies have shown that Apelin, acting through the APJ receptor, also modulates penile erection, however, the role of this system on penile structure and intracorporal collagen remodeling has not been investigated yet. Read More

View Article and Full-Text PDF

Engineered sex ratio distortion by X-shredding in the global agricultural pest Ceratitis capitata.

BMC Biol 2021 Apr 16;19(1):78. Epub 2021 Apr 16.

Department of Life Sciences, Imperial College London, Sir Alexander Fleming Building, South Kensington Campus, London, UK.

Background: Genetic sex ratio distorters are systems aimed at effecting a bias in the reproductive sex ratio of a population and could be applied for the area-wide control of sexually reproducing insects that vector disease or disrupt agricultural production. One example of such a system leading to male bias is X-shredding, an approach that interferes with the transmission of the X-chromosome by inducing multiple DNA double-strand breaks during male meiosis. Endonucleases targeting the X-chromosome and whose activity is restricted to male gametogenesis have recently been pioneered as a means to engineer such traits. Read More

View Article and Full-Text PDF

Reduction-sensitive polymeric micelles as amplifying oxidative stress vehicles for enhanced antitumor therapy.

Colloids Surf B Biointerfaces 2021 Apr 1;203:111733. Epub 2021 Apr 1.

National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.

Chemotherapy-photodynamic therapy (PDT)-based combination therapy is a currently frequently used means in cancer treatment that photosensitizer was able to generate reactive oxygen species (ROS) for improving chemotherapy, owing to the high oxidative stress of the tumor microenvironment (TME). Whereas, cancer cells were accustomed to oxidative stress by overexpression of antioxidant such as glutathione (GSH), which would consume the damage of ROS, as well as it could result in ineffective treatment. Herein, amplification of oxidative stress preferentially in tumor cells by consuming GSH or generating ROS is a reasonable treatment strategy to develop anticancer drugs. Read More

View Article and Full-Text PDF

Migratory state and patterns of steroid hormone regulation in the pectoralis muscle of a nomadic migrant, the pine siskin (Spinus pinus).

Gen Comp Endocrinol 2021 Apr 13:113787. Epub 2021 Apr 13.

School of Biological Sciences, Washington State University, Pullman, WA, USA.

The endocrine system is known to mediate responses to environmental change and transitions between different life stages (e.g., a non-breeding to a breeding life stage). Read More

View Article and Full-Text PDF

Description of n. sp. (Nematoda: Mononchida), a new predatory species from South Africa.

J Nematol 2021 26;53. Epub 2021 Mar 26.

Unit for Environmental Sciences and Management, Integrated Pest Management, North-West University, Private Bag x6001, Potchefstroom, 2520, South Africa.

n. sp. is described from South Africa and illustrated using morphological, morphometric, and molecular techniques. Read More

View Article and Full-Text PDF

Genetic variability, cryptic species and phylogenetic relationship of six cyathostomin species based on mitochondrial and nuclear sequences.

Sci Rep 2021 Apr 15;11(1):8245. Epub 2021 Apr 15.

Institute for Parasitology and Tropical Veterinary Medicine, Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany.

Cyathostomins are important intestinal nematode parasites of equines and include 50 accepted species. Their taxonomy has been frequently revised and the presence of cryptic species suggested. Furthermore, usually molecular- and morphology-based phylogenetic analyses give divergent results. Read More

View Article and Full-Text PDF

Clinical characteristics of children with cystic fibrosis infected with unusual bacteria.

Minerva Pediatr (Torino) 2021 Apr 15. Epub 2021 Apr 15.

Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey.

Objectives-aim: Pulmonary infections are usually caused by bacterial microorganisms such as Pseudomonas aeruginosa, Staphylococcus aureus, Haemophilus influenzae, and Burkholderia cepacia complex in cystic fibrosis (CF) patients. Unusual bacteria (UB) have been described by new isolation techniques recently in the respiratory samples of CF patients. The aim is to investigate the effects of the presence of UB in the respiratory cultures of CF patients on clinical outcomes, necessity of treatment and prognosis. Read More

View Article and Full-Text PDF

Distribution of Culex coronator in the USA.

J Am Mosq Control Assoc 2021 Mar;37(1):1-9

In 1920, Culex coronator was reported from San Benito, Texas, and later in Arizona, New Mexico, and Oklahoma. In 2005, this species was reported to be spreading across the southeastern USA. Now reported in 14 states, it has been found as far north as northern Oklahoma; Memphis, TN; and Suffolk, VA. Read More

View Article and Full-Text PDF

County-Level Records for Culex stigmatosoma and Culex thriambus in Texas.

J Am Mosq Control Assoc 2021 Mar;37(1):28-33

Populations of Culex stigmatosoma and Cx. thriambus have been documented in the southwestern USA with a southward range extension to northern South America and Central America, respectively. Studies conducted in California indicate both species are potential vectors of West Nile virus. Read More

View Article and Full-Text PDF

Metagenomic insights into mixotrophic denitrification facilitated nitrogen removal in a full-scale A2/O wastewater treatment plant.

PLoS One 2021 15;16(4):e0250283. Epub 2021 Apr 15.

School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse (SKL-PCRR), Nanjing University, Nanjing, China.

Wastewater treatment plants (WWTPs) are important for pollutant removal from wastewater, elimination of point discharges of nutrients into the environment and water resource protection. The anaerobic/anoxic/oxic (A2/O) process is widely used in WWTPs for nitrogen removal, but the requirement for additional organics to ensure a suitable nitrogen removal efficiency makes this process costly and energy consuming. In this study, we report mixotrophic denitrification at a low COD (chemical oxygen demand)/TN (total nitrogen) ratio in a full-scale A2/O WWTP with relatively high sulfate in the inlet. Read More

View Article and Full-Text PDF

An investigation of conventional microbial culture for the Naja atra bite wound, and the comparison between culture-based 16S Sanger sequencing and 16S metagenomics of the snake oropharyngeal bacterial microbiota.

PLoS Negl Trop Dis 2021 Apr 15;15(4):e0009331. Epub 2021 Apr 15.

Department of Department of Medicine, Division of Infection, Taichung Veterans General Hospital, Taichung, Taiwan.

Naja atra is a major venomous snake found in Taiwan. The bite of this snake causes extensive wound necrosis or necrotizing soft tissue infection. Conventional microbial culture-based techniques may fail to identify potential human pathogens and render antibiotics ineffective in the management of wound infection. Read More

View Article and Full-Text PDF

Novel Genotypes of Nidicolous Ticks and Their Associated Microorganisms From Spain.

Front Vet Sci 2021 29;8:637837. Epub 2021 Mar 29.

Departamento de Ecología Funcional y Evolutiva, Estación Experimental de Zonas Áridas -Consejo Superior de Investigaciones Científicas (EEZA-CSIC), Ctra. de Sacramento s/n, La Cañada de San Urbano, Almería, Spain.

The knowledge of the distribution, richness and epidemiological importance of soft ticks of the genus is incomplete. In Spain, five species have been recorded, including three ornitophilic nidicolous ticks, but their associated microorganisms remain unknown. This study aimed to investigate ticks from bird nests and their microorganisms. Read More

View Article and Full-Text PDF

Exploring the : differences in uropygial gland volume and haemosporidian infection in palearctic and neotropical birds.

Curr Zool 2021 Apr 16;67(2):147-156. Epub 2020 Jul 16.

Department of Anatomy, Cellular Biology and Zoology, University of Extremadura, Avda. de Elvas S/N, Badajoz ES-06006, Spain.

Parasites are globally widespread pathogenic organisms, which impose important selective forces upon their hosts. Thus, in accordance with the hypothesis, it is expected that defenses among hosts vary relative to the selective pressure imposed by parasites. According to the latitudinal gradient in diversity, species richness and abundance of parasites peak near the equator. Read More

View Article and Full-Text PDF

Molecular analysis suggests that Namibian cheetahs (Acinonyx jubatus) are definitive hosts of a so far undescribed Besnoitia species.

Parasit Vectors 2021 Apr 14;14(1):201. Epub 2021 Apr 14.

Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Street 17, 10315, Berlin, Germany.

Background: Besnoitia darlingi, B. neotomofelis and B. oryctofelisi are closely related coccidian parasites with felids as definitive hosts. Read More

View Article and Full-Text PDF

Comparative study of not from concentrate and reconstituted from concentrate of pomegranate juices on nutritional and sensory profile.

Food Sci Technol Int 2021 Apr 14:10820132211003707. Epub 2021 Apr 14.

ITC Limited, ITC Life Sciences & Technology Centre, Bengaluru, India.

Pomegranate juice is popular due to its unique health benefits, sensory characteristics and also a good source of bioactive compounds. Comparative study on processing effect of Not from Concentrate (NFC) and Reconstituted from concentrate (RFC) pomegranate juice on the nutritional and sensory characteristics of 'Ganesh' variant was conducted. Results showed that not much differences observed in parameters like pH, acidity, essential elements, protein, total sugars and polyphenol content between NFC and RFC. Read More

View Article and Full-Text PDF

Bremerella alba sp. nov., a novel planctomycete isolated from the surface of the macroalga Fucus spiralis.

Syst Appl Microbiol 2021 Mar 15;44(3):126189. Epub 2021 Mar 15.

Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal. Electronic address:

A bacterial strain, designated FF15, was isolated from the thallus surface of the macroalga Fucus spiralis sampled on a rocky beach in Porto, Portugal. Based on the 16S rRNA gene sequence, strain FF15 was affiliated to the phylum Planctomycetes. This strain forms white colonies on modified M13 medium and the cells are pear-shaped, can form rosettes, divide by polar budding and are motile. Read More

View Article and Full-Text PDF

Isolation and Reactivity of Uranyl Superoxide.

Angew Chem Int Ed Engl 2021 Apr 14. Epub 2021 Apr 14.

University of Northern Iowa, Physics, UNITED STATES.

The high radiation field associated with spent nuclear fuel (U(IV)O 2 ) pellets produces an array of reactive radical species that impact the corrosion and formation of secondary alteration phases. Dioxygen radicals are important as radiolysis products, but the interaction between these reactive oxygen species and U(VI)O 2 2+ and its effects on the resultant alteration phases is unclear. Herein, we report the first example of a U(VI) superoxide compound and explore its reactivity in the environments relevant to the storage of spent nuclear fuel. Read More

View Article and Full-Text PDF

Incorporation of feeding functional group information informs explanatory patterns of long-term population changes in fish assemblages.

PeerJ 2021 29;9:e11032. Epub 2021 Mar 29.

Agriculture and Water Quality Educational Center, Wright State University-Lake Campus, Celina, OH, USA.

The objective of this study was to evaluate long term trends of fish taxa in southern Lake Michigan while incorporating their functional roles to improve our understanding of ecosystem level changes that have occurred in the system over time. The approach used here highlighted the ease of incorporating ecological mechanisms into population models so researchers can take full advantage of available long-term ecosystem information. Long term studies of fish assemblages can be used to inform changes in community structure resulting from perturbations to aquatic systems and understanding these changes in fish assemblages can be better contextualized by grouping species according to functional groups that are grounded in niche theory. Read More

View Article and Full-Text PDF

miR-125b/NRF2/HO-1 axis is involved in protection against oxidative stress of cystic fibrosis: A pilot study.

Exp Ther Med 2021 Jun 2;21(6):585. Epub 2021 Apr 2.

Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy.

In the physiopathology of cystic fibrosis (CF), oxidative stress implications are recognized and widely accepted. The cystic fibrosis transmembrane conductance regulator (CFTR) defects disrupt the intracellular redox balance causing CF pathological hallmarks. Therefore, oxidative stress together with aberrant expression levels of detoxification genes and microRNAs (miRNAs/miRs) may be associated with clinical outcome. Read More

View Article and Full-Text PDF

A contribution towards checklist of fungus gnats (Diptera, Diadocidiidae, Ditomyiidae, Bolitophilidae, Keroplatidae, Mycetophilidae) in Georgia, Transcaucasia.

Olavi Kurina

Zookeys 2021 26;1026:69-142. Epub 2021 Mar 26.

Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi st 5 D, 51006 Tartu, Estonia Estonian University of Life Sciences Tartu Estonia.

The fungus gnats of Georgia are studied based on 2682 specimens collected from 57 localities during 2011-2019. Altogether, 245 species are recorded including four species of Bolitophilidae, three species of Diadocidiidae, two species of Ditomyiidae, 34 species of Keroplatidae and 202 species of Mycetophilidae. 230 and 188 species are recorded from Georgia and the whole of Transcaucasia for the first time, respectively. Read More

View Article and Full-Text PDF

Porous ZrO encapsulated perovskite composite oxide for organic pollutants removal: Enhanced catalytic efficiency and suppressed metal leaching.

J Colloid Interface Sci 2021 Mar 31;596:455-467. Epub 2021 Mar 31.

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China. Electronic address:

Cobalt-based perovskite material, an effective activator of PMS, is widely employed for wastewater remediation, but still affected by the leakage of the cobalt ions. In this study, a porous core-shell structured perovskite LaFeCoO/SiO core @ZrO shell (LFCS@ZrO) was fabricated and partially etched to enlarge channels to further enhance mass transfer ability. The well-designed core-shell structure can not only restrain metal ion leaching by changing the surface microenvironment but also provide an additional driving force attributed to the enriched concentration gradient, thus enhancing the catalytic oxidation performance. Read More

View Article and Full-Text PDF

Study of the effect of light on follicular development in laying hens.

Anim Biosci 2021 Apr 13. Epub 2021 Apr 13.

Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, 430064, P. R. China.

Objective: The oxidative stress status and changes of chicken ovary tissue after shading were studied, to determine the mechanism of the effect of shading on follicular development.

Methods: Twenty healthy laying hens (40 weeks old) with uniform body weight and the same laying rate were randomly divided into two groups (the shading group and normal light group). In the shading group, the cage was covered to reduce the light intensity inside the cage to 0 without affecting ventilation or food intake. Read More

View Article and Full-Text PDF

Retrospective analysis of hibernation parameters and breeding success in captive Vancouver Island marmots (Marmota vancouverensis): 1997-2018.

Zoo Biol 2021 Apr 13. Epub 2021 Apr 13.

Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.

Vancouver Island marmots (Marmota vancouverensis) have been managed in a captive-breeding program since 1997, as in situ conservation efforts were insufficient in raising the numbers of this critically endangered species. The success of captive-breeding programs centers on sustainable reproduction and survival of individuals once released into the wild. Captive-born Vancouver Island marmots released to the wild have lower survival rates than their wild-born counterparts; this difference may arise from compromised hibernation patterns or behaviors. Read More

View Article and Full-Text PDF