44,150 results match your criteria inhibitory studied

Comparative study of neuron-specific promoters in mouse brain transduced by intravenously administered AAV-PHP.eB.

Neurosci Lett 2021 May 11:135956. Epub 2021 May 11.

Department of Neurophysiology and Neural Repair, Gunma University Graduate School of Medicine, 3-39-22, Gunma, 371-8511, Japan; Viral Vector Core, Gunma University Initiative for Advanced Research (GIAR), Gunma, 371-8511, Japan. Electronic address:

Adeno-associated virus (AAV)- PHP.B and AAV-PHP.eB (PHP. Read More

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Phosphorus-nitrogen compounds: part 53-synthesis, characterization, cytotoxic and antimicrobial activity, DNA interaction and molecular docking studies of new mono- and dispirocyclotriphosphazenes with pendant arm(s).

Mol Divers 2021 May 14. Epub 2021 May 14.

Department of Physics, Hacettepe University, 06800, Ankara, Turkey.

Mono-/dispirocyclotriphosphazenes with pendant arm(s) are robust, but they are less investigated inorganic ring systems. In this study, a series of mono (3 and 4)- and dispirocyclotriphosphazenes with 4-chloro-benzyl pendant arm(s) (13-16) was obtained from the Cl exchange reactions of hexachlorocyclotriphosphazene with sodium (N-benzyl)aminopropanoxides (1 and 2). When compound (3) reacted with excess pyrrolidine, morpholine, tetra-1,4-dioxa-8-azaspiro[4,5]decane (DASD) and piperidine, the fully substituted monospirocyclotriphosphazenes (7, 9, 10 and 12) occurred. Read More

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Toxic response of the freshwater green algae Chlorella pyrenoidosa to combined effect of flotation reagent butyl xanthate and nickel.

Environ Pollut 2021 May 3;286:117285. Epub 2021 May 3.

School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.

Butyl Xanthate (BX) is a typical flotation reagent used to extract non-ferrous nickel ores, discharged into the surrounding environment of mining areas in large quantities. However, few studies have focused on the toxicity of combined pollution of BX and nickel (Ni) on aquatic plants, especially phytoplankton, the main producer of aquatic ecosystems. The toxicity and potential mechanism of single and combined pollution of BX and Ni at different concentrations (0-20 mg L) on typical freshwater algae (Chlorella pyrenoidosa) were studied. Read More

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MicroRNA‑198 suppresses tumour growth and metastasis in oral squamous cell carcinoma by targeting CDK4.

Int J Oncol 2021 Jul 13;59(1). Epub 2021 May 13.

Department of Emergency and Oral Medicine, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning 110002, P.R. China.

MicroRNAs (miRNAs/miR) often contribute to the progression of oral squamous cell carcinoma (OSCC) via the regulation of mRNA. The present study aimed to investigate the role of miR‑198 in OSCC pathogenesis and explore the underlying mechanism. Reverse transcription‑quantitative (RT‑q)PCR was performed to determine miR‑198 expression in OSCC tissues and cell lines, and univariate and multivariate analyses were applied to evaluate the survival of patients with OSCC. Read More

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Molecular properties prediction, synthesis, and antimicrobial activity of bis(azolyl)sulfonamidoacetamides.

Arch Pharm (Weinheim) 2021 May 11:e2000483. Epub 2021 May 11.

Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.

A library of bis(azolyl)sulfonamidoacetamides was prepared by the reaction of azolylsulfonylamines with azolylchloroacetamides in the presence of pyridine/4-(dimethylamino)pyridine (DMAP) under ultrasonication. The reaction proceeded well with DMAP, resulting in a higher yield of the products. The antimicrobial activity of the compounds indicated that N-{5-[N-(2-{[4-(4-chloro-1H-pyrrol-2-yl)-1H-imidazol-2-yl)amino}-2-oxoethyl)sulfamoyl]-4-phenylthiazol-2-yl}benzamide (22a), N-{5-[N-(2-{[4-(4-chloro-1H-pyrrol-2-yl)-1H-imidazol-2-yl]amino}-2-oxoethyl)sulfamoyl]-4-(4-chlorophenyl)thiazol-2-yl}benzamide (22c), and N-{5-[N-(2-{[4-(4-chloro-1H-pyrrol-2-yl)-1H-imidazol-2-yl]amino}-2-oxoethyl)sulfamoyl]-4-(4-chloro-phenyl)-1H-imidazol-2-yl}benzamide (24c) exhibited a low minimal inhibitory concentration (MIC) against Bacillus subtilis, equal to the standard drug, chloramphenicol. Read More

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Characterizationharacterization of Extremophilic Actinomycetes Strains as Sources of Antimicrobial Agents.

Methods Mol Biol 2021 ;2296:59-75

Nazarbayev University School of Medicine (NUSOM), Nur-Sultan, Kazakhstan.

Extremophilic actinomycetes strains can survive extreme saline and alkaline environments and produce antimicrobial agents. In this chapter, we discuss laboratory methods that can be used to isolate and characterize actinomycetes strains capable of potentially producing novel antimicrobial agent(s) when cultured in conditions that mimic the environments from which they were isolated. Methods used to screen for antibacterial and antiviral activities from these producer strains, and microbiological and molecular approaches used to identify these strains are described. Read More

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January 2021

Ulinastatin Exhibits Antinociception in Rat Models of Acute Somatic and Visceral Pain Through Inhibiting the Local and Central Inflammation.

J Pain Res 2021 4;14:1201-1214. Epub 2021 May 4.

Department of Anesthesiology and Perioperative Medicine, Clinical Medical College, (900 Hospital of the Joint Logistic Support Force), Fujian Medical University, Fuzhou, Fujian, 350025, People's Republic of China.

Introduction: Ulinastatin, a broad-spectrum serine protease inhibitor, has been widely used to treat various diseases clinically. However, so far, the antinociceptive effect of ulinastatin remains less studied experimentally and the underlying mechanisms of ulinastatin for pain relief remain unclear. This study aimed to find evidence of the analgesic effect of ulinastatin on acute somatic and visceral pain. Read More

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Cbl-b deficiency prevents functional but not phenotypic T cell anergy.

J Exp Med 2021 Jul 11;218(7). Epub 2021 May 11.

Russell/Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, CA.

T cell anergy is an important peripheral tolerance mechanism. We studied how T cell anergy is established using an anergy model in which the Zap70 hypermorphic mutant W131A is coexpressed with the OTII TCR transgene (W131AOTII). Anergy was established in the periphery, not in the thymus. Read More

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Ultra-thin metal-organic framework nanosheets for chemo-photodynamic synergistic therapy.

J Mater Chem B 2021 May 11. Epub 2021 May 11.

Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.

Synergistic therapies, such as chemo-photodynamic therapy, have been growing fast because of their efficacy against cancers. Although metal-organic frameworks have been widely studied in the field of drug delivery, the metal-organic frameworks (MOFs) with a two-dimensional (2D) structure integrated by photosensitizers are rarely reported. However, chemo-photodynamic therapy still has limitations such as the inhibitory effect from intracellular glutathione (GSH). Read More

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Core-shell ZVI@carbon composites reduce phosphate inhibition of ZVI dissolution and enhance methane production in an anaerobic sewage treatment.

Water Res 2021 Apr 29;199:117197. Epub 2021 Apr 29.

Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address:

Inhibitory effects of phosphate on zero-valent iron (ZVI) dissolution have been studied mainly focusing on a single chemical system. Little is known about inhibitory effects and the mechanism of phosphate on ZVI dissolution within a bioreactor during long-term operation. This study demonstrates the feasibility of achieving energy recovery from phosphate-containing domestic sewage using an efficient anaerobic reactor with micro-sized or nano-sized ZVI addition. Read More

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Anti-inflammatory pregnane-type steroid derivatives clathroids A-B from the marine Microcionidae sponge Clathria (Thalysias) vulpina: Prospective duel inhibitors of pro-inflammatory cyclooxygenase-2 and 5-lipoxygenase.

Steroids 2021 May 7;172:108858. Epub 2021 May 7.

Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin, India. Electronic address:

Two pregnane-type of steroid derivatives characterized as 5α-pregna-3β-methyl pent-3-enoate-12β, 16β diol-20-one (clathroid A) and 12β,15β- dihydroxypregna-4,6-diene-3,20-dione (clathroid B) were purified from the crude extract of the marine sponge, Clathria (Thalysias) vulpina (family Microcionidae) by extensive chromatographic fractionation. Spectroscopic methods including nuclear magnetic resonance spectroscopy were employed to characterize the purified clathroids A-B. The studied compounds exhibited duel inhibitory potentials against pro-inflammatory cyclooxygenase-2 and 5-lipoxygenase (median inhibitory concentration, IC < 1 mM), whereas the attenuation property of clathroid A against 5-lipoxygenase (IC 0. Read More

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Chemical composition, antimicrobial, antioxidant, and cytotoxic activity of the essential oil from the leaves of Stachys pilifera Benth.

FEMS Microbiol Lett 2021 May 10. Epub 2021 May 10.

Research Laboratories in Sciences Applied to Food, Canadian Irradiation Center, INRS-Armand Frappier, Health and Biotechnology Center, Institute of Nutrition and Functional Foods, Laval, QC, Canada.

Stachys pilifera Benth is an endemic species of Stachys family found in Iran with a wide application as an herbal tea. The objective of this research was to evaluate the antimicrobial, antioxidant, and cytotoxic activity of the essential oil from the aerial parts of S. pilifera. Read More

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and Biofilms Produce Antifungal-Tolerant Persister Cells.

Front Cell Infect Microbiol 2021 22;11:645812. Epub 2021 Apr 22.

Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.

Persister cells are metabolically inactive dormant cells that lie within microbial biofilms. They are phenotypic variants highly tolerant to antimicrobials and, therefore, associated with recalcitrant infections. In the present study, we investigated if and are able to produce persister cells. Read More

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Loss of Cervical Sympathetic Chain Input to the Superior Cervical Ganglia Affects the Ventilatory Responses to Hypoxic Challenge in Freely-Moving C57BL6 Mice.

Front Physiol 2021 22;12:619688. Epub 2021 Apr 22.

Department of Pediatrics, Division of Pulmonology, Allergy and Immunology, Case Western Reserve University, Cleveland, OH, United States.

The cervical sympathetic chain (CSC) innervates post-ganglionic sympathetic neurons within the ipsilateral superior cervical ganglion (SCG) of all mammalian species studied to date. The post-ganglionic neurons within the SCG project to a wide variety of structures, including the brain (parenchyma and cerebral arteries), upper airway (e.g. Read More

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Procyanidine resists the fibril formation of human islet amyloid polypeptide.

Int J Biol Macromol 2021 May 7;183:1067-1078. Epub 2021 May 7.

Department of Chemistry, Renmin University of China, Beijing 100872, China. Electronic address:

Human islet amyloid polypeptide (hIAPP) is widely studied due to its close correlation with the pathogenic mechanism of type II diabetes mellitus (T2DM). Bioflavonoids have been used in the neurodegeneration and diabetes studies. However, the structure-activity relationship remains unclear in many of these compounds. Read More

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In vitro interaction between glabridin and voriconazole against Aspergillus fumigatus isolates.

Rev Iberoam Micol 2021 May 5. Epub 2021 May 5.

Invasive Fungi Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran; Department of Medical Mycology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. Electronic address:

Background: Voriconazole (VRC) is widely recommended as the first-line therapy for invasive aspergillosis. However, surveillance studies have demonstrated that there is an increase in the frequency of azole resistance among Aspergillus fumigates isolates. In recent years, more studies on effective synergisms between natural agents and antifungal drugs have been published. Read More

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Regiospecific vs. non regiospecific click azide-alkyne polymerization: In vitro study of water-soluble antibacterial poly(amide aminotriazole)s.

Mater Sci Eng C Mater Biol Appl 2021 Jun 17;125:112113. Epub 2021 Apr 17.

Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Profesor García González 2, 41012 Sevilla, Spain. Electronic address:

Novel linear cationic poly(amide aminotriazole)s (PATnD) with secondary amine groups in the backbone were obtained by using azide-alkyne 1,3-dipolar cycloaddition reactions: metal- and solvent-free (thermal conditions, PATTnD) or copper(I)-catalyzed (Sharpless conditions, PATCnD). PATnD were investigated in vitro against strains of E. coli, P. Read More

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