219,472 results match your criteria evaluated potential

The toxic impacts of microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) on haematic parameters in a marine bivalve species and their potential mechanisms of action.

Sci Total Environ 2021 Apr 9;783:147003. Epub 2021 Apr 9.

College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China. Electronic address:

Microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) are universally detected in the marine ecosystem and may exert adverse impacts on marine species. Although under realistic pollution scenarios, PAH pollution usually occurs as a mixture of different PAH compounds, the toxic impacts of PAH mixtures on marine organisms remain largely unknown to date, including their interactions with other emergent pollutants such as MPs. In this study, the single and combined toxic impacts of polystyrene MPs and a mixture of PAHs (standard mix of 16 representative PAHs) on haematic parameters were evaluated in the blood clam Tegillarca granosa. Read More

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Improving nutrients removal and energy recovery from wastes using hydrochar.

Sci Total Environ 2021 Apr 9;783:146980. Epub 2021 Apr 9.

Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia. Electronic address:

Hydrothermal carbonization (HTC) is an eco-friendly, flexible and efficient way to valorise wet solid wastes, producing a carbon-rich material named as hydrochar. Considerable efforts have been devoted to studying the feasibility of using hydrochar in waste management to achieve the goal of circular economy. However, a comprehensive evaluation of the impacts of hydrochar on energy recovery from anaerobic digestion (AD), nutrient reclamation, and wastewater treatment is currently lacking. Read More

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Synthesis and characterization of nano-hydroxyapatite from Sardinella longiceps fish bone and its effects on human osteoblast bone cells.

J Mech Behav Biomed Mater 2021 Apr 14;119:104501. Epub 2021 Apr 14.

CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608 502, India.

Organic debris in the form of fish bone wastes account to several thousand tons annually. In recent years, researchers have turned attention towards the bioconversion of organic debris into materials with biomedical applications. Accordingly, the present study synthesized nano-Hydroxyapatite (n-HAP) from bones of discarded Sardinella longiceps by the alkaline hydrolysis method. Read More

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Diversity-oriented synthesis of cembranoid derivatives as potential anti-inflammatory agents.

Bioorg Chem 2021 Apr 6;111:104887. Epub 2021 Apr 6.

State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China; Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Aoshanwei, Jimo, Qingdao, 266237, China. Electronic address:

Eleven novel cembranoid derivatives were designed, synthesized, and evaluated for their inflammation related activities on the basis of our isolated and previously reported anti-inflammatory marine cembranoids. In bioassay, compound 11 displayed the most promising inhibitory effects with IC value of 1.1 μM for the TNF-α inhibitory activity. Read More

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Performance of the rapid high-throughput automated electrochemiluminescence immunoassay targeting total antibodies to the SARS-CoV-2 spike protein receptor binding domain in comparison to the neutralization assay.

J Clin Virol 2021 Apr 10;139:104820. Epub 2021 Apr 10.

Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia. Electronic address:

Background: Neutralization tests (NT) are the gold standard for detecting and quantifying anti-SARS-CoV-2 neutralizing antibodies (NAb), but their complexity restricts them to research settings or reference laboratories. Antibodies against S protein receptor binding domain (RBD) have been shown to confer a neutralizing activity against SARS-CoV-2. Assays quantitatively measuring anti-S1-RBD-SARS-CoV-2 antibodies could be of great value for NAb screening of potential donors for convalescent-phase plasma therapy, assessing natural or vaccine-induced immunity, stratifying individuals for vaccine receipt, and documenting vaccine response. Read More

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J Chem Neuroanat 2021 Apr 14:101958. Epub 2021 Apr 14.

Department of Histology and Embryology, Erciyes University, Faculty of Medicine, 38039, Kayseri, Turkey. Electronic address:

Objective: We aimed to investigate the effects of umbilical cord-derived mesenchymal stem cells and erythropoietin on nerve regeneration in the sciatic nerve 'crush injury' in a rat model.

Methods: Experimental animals were randomly divided into 5 groups: Crush Injury, Sham, Crush Injury + Erythropoietin, Crush Injury + Mesenchymal Stem Cell, Crush Injury + Erythropoietin + Mesenchymal Stem Cell groups. Crush injury made with bulldog clamp. Read More

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Preparation of cellulose based wipes treated with antimicrobial and antiviral silver nanoparticles as novel effective high-performance coronavirus fighter.

Int J Biol Macromol 2021 Apr 14. Epub 2021 Apr 14.

Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt.

Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). We successful to prepare disinfectant cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles to be used for prevention of contamination and transmission of several pathogenic viruses and microbes to human in critical areas such as hospitals and healthcare centers especially coronavirus. In this work, the antimicrobial and antiviral activities of silver nanoparticles (AgNPs) prepared with four different techniques were investigated for the utilization as a disinfectant for cellulose-based wipes. Read More

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Anti-inflammatory effects of FS48, the first potassium channel inhibitor from the salivary glands of the flea Xenopsylla cheopis.

J Biol Chem 2021 Apr 14:100670. Epub 2021 Apr 14.

Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China. Electronic address:

The voltage-gated potassium (Kv) 1.3 channel plays a crucial role in the immune responsiveness of T-lymphocytes and macrophages, presenting a potential target for treatment of immune- and inflammation related-diseases. FS48, a protein from the rodent flea Xenopsylla cheopis, shares the three disulfide bond feature of scorpion toxins. Read More

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Mainstream Cigarette Smoke Impacts the Mouse Vocal Fold Epithelium and Mucus Barrier.

Laryngoscope 2021 Apr 17. Epub 2021 Apr 17.

Department of Otolaryngology - Head & Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A.

Objectives/hypothesis: Cigarette smoke (CS) is a primary risk factor for the development of numerous benign and malignant laryngeal diseases. The epithelium and mucus lining the vocal folds (VF) are the first barriers against CS. The primary objective of this study was to investigate epithelial and mucus barrier changes in the mouse laryngeal mucosa upon exposure to subacute CS. Read More

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Molecular mechanisms of physical exercise on depression in the elderly: a systematic review.

Mol Biol Rep 2021 Apr 17. Epub 2021 Apr 17.

Physical Education Department, Federal University of the Valleys of Jequitinhonha and Mucuri (UFVJM), Diamantina, MG, Brazil.

Depressive disorders are common among the elderly. Major depressive disorder will be one of the highest healthcare costs in middle and higher income countries by 2030. It is known that physical inactivity leads to negative effects on mental health in the elderly. Read More

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A new prenylated benzoquinone from Cyathocalyx pruniferus abrogates LPS-induced inflammatory responses associated with PGE, COX-2 and cytokines biosynthesis in human plasma.

Inflammopharmacology 2021 Apr 17. Epub 2021 Apr 17.

Faculty of Pharmacy, MAHSA University, Bandar Saujana Putra, 42610, Jenjarom, Selangor, Malaysia.

In our previous laboratory findings, Cyathocalyx pruniferus extracts exhibited platelet-activating factor inhibition, suggesting their anti-inflammatory potential. Hence, this study was designed with the aim to isolate phyto-constituents from C. pruniferus with potent anti-inflammatory activities. Read More

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Close-range cues used by males of Polistes dominula in sex discrimination.

Naturwissenschaften 2021 Apr 17;108(3):15. Epub 2021 Apr 17.

Laboratory of Socioecology and Social Evolution, KU Leuven - University of Leuven, Leuven, Belgium.

Sexual pheromones are chemical molecules responsible for mediating sex recognition and mating events. Long- and close-range sexual pheromones act differently. The first type is released to attract potential partners, whereas the second coordinates the interactions after potential mating partners encounter each other. Read More

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Efficacy and Residual activity of Commercially Available Entomopathogenic Nematode Strains for Mediterranean Fruit Fly Control and their Ability to Infect Infested Fruits.

Pest Manag Sci 2021 Apr 17. Epub 2021 Apr 17.

Department of Entomology & Agricultural Zoology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561 Kifissia, Greece.

Background: Entomopathogenic nematodes show potential in controlling larvae of the Mediterranean fruit fly (medfly) Ceratitis capitate, however previous studies mainly concern species and strains that are not commercially available. The use of entomopathogenic nematodes for control of Mediterranean fruit fly is further hampered by the cost of using nematodes. In this study, the efficacy and residual activity of commercial strains of three entomopathogenic nematode species (EPNs) Steinernema carpοcapsae, S. Read More

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Design, synthesis and biological evaluation of N-substituted indole-thiazolidinedione hybrid analogues as potential pancreatic lipase inhibitors.

Chem Biol Drug Des 2021 Apr 16. Epub 2021 Apr 16.

Laboratory of Natural Product Chemistry, Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS Pilani), Pilani Campus, Pilani - 333 031, Rajasthan, India.

Pancreatic Lipase (PL) is a key enzyme responsible for 50-70% of dietary triglycerides, hence its inhibition is considered as a viable approach for the management of obesity. A series of indole-TZD hybrid analogues were synthesised, characterised, and evaluated for their PL inhibitory activity. Knoevenagel condensation of various substituted indole-3-carboxaldehyde with substituted thiazolidinediones resulted in the formation of titled analogues. Read More

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Investigating Surface Binding Effects: Antibacterial Efficacy of Bound 8-Hydroxyquinoline against Staphylococcus aureus and Escherichia coli.

J Appl Microbiol 2021 Apr 16. Epub 2021 Apr 16.

Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, Florida, 32403, USA.

Aims: Investigate the binding of the antimicrobial compound 8-hydroxyquinoline (8HQ) to a material interface and determine whether immobilization affects the antibacterial efficacy.

Methods & Results: The 8HQ derivative 5-carboxy-8-hydroxyquinoline (5C8HQ) was attached to silica beads through amide bond coupling at the carboxyl moiety of 5C8HQ. Attachment of 5C8HQ was confirmed using a combination of mass spectrometry, thermogravimetric analysis, colorimetric testing, and Soxhlet extraction. Read More

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Effects of Gocovri (Amantadine) Extended Release Capsules on Non-Motor Symptoms in Patients with Parkinson's Disease and Dyskinesia.

Neurol Ther 2021 Apr 17. Epub 2021 Apr 17.

Adamas Pharmaceuticals, Inc., Emeryville, CA, USA.

Introduction: Gocovri (amantadine) extended release capsules are approved for treatment of dyskinesia and as a levodopa adjunct for OFF episodes in patients with Parkinson's disease (PD). We report treatment-related effects on non-motor symptoms (NMS) assessed as secondary outcomes in two trials using the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part I.

Methods: EASE LID and EASE LID 3 enrolled levodopa-treated patients with PD and ≥ 1 h/day ON time with troublesome dyskinesia. Read More

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Limited Impact of 6-Mercaptopurine on Inflammation-Induced Chemokines Expression Profile in Primary Cultures of Enteric Nervous System.

Neurochem Res 2021 Apr 16. Epub 2021 Apr 16.

Institute of Anatomy, Kiel University, Kiel, Germany.

Increasing evidences indicate that the enteric nervous system (ENS) and enteric glial cells (EGC) play important regulatory roles in intestinal inflammation. Mercaptopurine (6-MP) is a cytostatic compound clinically used for the treatment of inflammatory bowel diseases (IBD), such as ulcerative colitis and Crohn's disease. However, potential impacts of 6-MP on ENS response to inflammation have not been evaluated yet. Read More

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Impact of Regular Physical Activity on Aortic Diameter Progression in Paediatric Patients with Bicuspid Aortic Valve.

Pediatr Cardiol 2021 Apr 16. Epub 2021 Apr 16.

Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy.

Patients with bicuspid aortic valve (BAV) have an increased risk of aortic dilation and aortic dissection or rupture. The impact of physical training on the natural course of aortopathy in BAV patients remains unclear. The aim of this study was to evaluate the impact of regular physical activity on aortic diameters in a consecutive cohort of paediatric patients with BAV. Read More

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Markers of vitamin D metabolism and premenstrual symptoms in healthy women with regular cycles.

Hum Reprod 2021 Apr 16. Epub 2021 Apr 16.

Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.

Study Question: Are insufficient 25-hydroxyvitamin D (25(OH)D) concentrations, and other markers of vitamin D metabolism, associated with premenstrual symptoms in healthy women with regular menstrual cycles?

Summary Answer: 25(OH)D insufficiency was associated with specific physical premenstrual symptoms, while no associations were observed with psychological symptoms or with other markers of vitamin D metabolism.

What Is Known Already: Prior studies evaluating vitamin D and premenstrual symptoms have yielded mixed results, and it is unknown whether 25(OH)D insufficiency and other markers of vitamin D metabolism are associated with premenstrual symptoms.

Study Design, Size, Duration: We used two cohorts of women with regular menstrual cycles; 1191 women aged 18-40 years in EAGeR (cross-sectional analysis of a prospective cohort within a randomized trial) and 76 women aged 18-44 years in BioCycle (prospective cohort). Read More

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Increasing Volume-Targeted Ventilation Use in the NICU.

Pediatrics 2021 Apr 16. Epub 2021 Apr 16.

Division of Neonatology, School of Medicine, Indiana University, Indianapolis, Indiana.

Background: In preterm infants who require mechanical ventilation (MV), volume-targeted ventilation (VTV) modes are associated with lower rates of bronchopulmonary dysplasia compared with pressure-limited ventilation. Bronchopulmonary dysplasia rates in our NICU were higher than desired, prompting quality improvement initiatives to improve MV by increasing the use of VTV.

Methods: We implemented and tested interventions over a 3-year period. Read More

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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

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Serum NT-proBNP levels and histopathological myocardial fibrosis in autopsied cases from a Japanese community: The Hisayama Study.

J Cardiol 2021 Apr 13. Epub 2021 Apr 13.

Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. Electronic address:

Background: natriuretic peptide is associated with myocardial fibrosis in animal models and among patients with heart disease. However, it remains unclear whether serum N-terminal pro-B-type peptide (NT-proBNP) levels are associated with histopathologically proven myocardial fibrosis among individuals without apparent heart disease. This study aimed to evaluate the association between serum NT-proBNP levels and the histopathologically estimated myocardial fibrotic area in autopsied samples from a community. Read More

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Histological evaluation of inferior alveolar nerve injury after osteotomy of mandibular buccal cortex using piezoelectric versus conventional rotary devices: a split-mouth randomised study in rabbits.

Br J Oral Maxillofac Surg 2020 Aug 29. Epub 2020 Aug 29.

Department of Biostatistics and Epidemiology, Hamadan University of Medical Sciences, Hamadan, Iran.

Up until now, only a limited number of evidence-based studies with different results has evaluated traumatic nerve injury after maxillofacial surgery using piezoelectric devices versus rotary instruments. The present experiment was performed to evaluate damage to the inferior alveolar nerve (IAN), histologically, after osteotomy of the buccal cortex of the mandible using piezoelectric devices versus surgical handpieces. Forty rabbits underwent bilateral osteotomy of the mandibular buccal cortex. Read More

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Advanced glycation end products measured by skin autofluorescence are associated with melancholic depressive symptoms - Findings from Helsinki Birth Cohort Study.

J Psychosom Res 2021 Apr 10:110488. Epub 2021 Apr 10.

Folkhälsan Research Center, Helsinki, Finland; Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

Background: Millions of people live with depression and its burden of disease. Depression has an increased comorbidity and mortality that has remained unexplained. Studies have reported connections between advanced glycation end products (AGEs) and various disease processes, including mental health. Read More

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Rearing temperature conditions (constant vs. thermocycle) affect daily rhythms of thermal tolerance and sensing in zebrafish.

J Therm Biol 2021 Apr 18;97:102880. Epub 2021 Feb 18.

Department of Physiology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain. Electronic address:

In the wild, the environment does not remain constant, but periodically oscillates so that temperature rises in the daytime and drops at night, which generates a daily thermocycle. The effects of thermocycles on thermal tolerance have been previously described in fish. However, the impact of thermocycles on daytime-dependent thermal responses and daily rhythms of temperature tolerance and sensing expression mechanisms remain poorly understood. Read More

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Bioinformatic analysis identifies potential biomarkers and therapeutic targets of septic-shock-associated acute kidney injury.

Hereditas 2021 Apr 16;158(1):13. Epub 2021 Apr 16.

Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, 430022, China.

Background: Sepsis and septic shock are life-threatening diseases with high mortality rate in intensive care unit (ICU). Acute kidney injury (AKI) is a common complication of sepsis, and its occurrence is a poor prognostic sign to septic patients. We analyzed co-differentially expressed genes (co-DEGs) to explore relationships between septic shock and AKI and reveal potential biomarkers and therapeutic targets of septic-shock-associated AKI (SSAKI). Read More

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Toll-like receptor 2 induced senescence in intervertebral disc cells of patients with back pain can be attenuated by o-vanillin.

Arthritis Res Ther 2021 Apr 16;23(1):117. Epub 2021 Apr 16.

Department of Surgery, Orthopaedic Research Lab, McGill University, Montreal, Canada.

Background: There is an increased level of senescent cells and toll-like teceptor-1, -2, -4, and -6 (TLR) expression in degenerating intervertebral discs (IVDs) from back pain patients. However, it is currently not known if the increase in expression of TLRs is related to the senescent cells or if it is a more general increase on all cells. It is also not known if TLR activation in IVD cells will induce cell senescence. Read More

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Characteristics associated with clinical response to Comano thermal spring water balneotherapy in pediatric patients with atopic dermatitis.

Ital J Pediatr 2021 Apr 16;47(1):91. Epub 2021 Apr 16.

"Giovan Battista Mattei" Research Institute, Stenico, Italy.

Background: Several studies have investigated the efficacy of balneotherapy in atopic dermatitis (AD), including a pediatric open randomized clinical trial conducted at the Comano thermal spring water center, which showed a significant reduction in AD severity and an improvement of the quality of life. However, so far many studies on balneotherapy in pediatric AD have included relatively small populations without identifying patients' characteristics associated with their response. The aim of the present study was to identify any features associated with the clinical response to the Comano thermal spring water balneotherapy in a large cohort of pediatric AD patients. Read More

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Automated caries detection with smartphone color photography using machine learning.

Health Informatics J 2021 Apr-Jun;27(2):14604582211007530

Department of Biomedical Engineering, National Cheng Kung University.

Untreated caries is significant problem that affected billion people over the world. Therefore, the appropriate method and accuracy of caries detection in clinical decision-making in dental practices as well as in oral epidemiology or caries research, are required urgently. The aim of this study was to introduce a computational algorithm that can automate recognize carious lesions on tooth occlusal surfaces in smartphone images according to International Caries Detection and Assessment System (ICDAS). Read More

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Withanolides from Withania somnifera Ameliorate Neutrophil Infiltration in Endotoxin-Induced Peritonitis by Regulating Oxidative Stress and Inflammatory Cytokines.

Planta Med 2021 Apr 16. Epub 2021 Apr 16.

Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, Uttarakhand, India.

Identification of novel anti-inflammatory strategies are needed to avoid the side effects associated with the currently available therapies. Use of anti-inflammatory herbal remedies is gaining attention. The purpose of the present investigation was to evaluate the pharmacological potential of the withanolide-rich root extracts of the medical plant (L. Read More

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