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141.
Cosmin Vasilica Pricope Bogdan Ionel Tamba Gabriela Dumitrita Stanciu Magdalena Cuciureanu Anca Narcisa Neagu Ioana Creanga-Murariu Bogdan-Ionut Dobrovat Cristina Mariana Uritu Silviu Iulian Filipiuc Bianca-Mariana Pricope Teodora Alexa-Stratulat 《International journal of molecular sciences》2022,23(21)
Chronic neuropathic pain (CNP) affects around 10% of the general population and has a significant social, emotional, and economic impact. Current diagnosis techniques rely mainly on patient-reported outcomes and symptoms, which leads to significant diagnostic heterogeneity and subsequent challenges in management and assessment of outcomes. As such, it is necessary to review the approach to a pathology that occurs so frequently, with such burdensome and complex implications. Recent research has shown that imaging methods can detect subtle neuroplastic changes in the central and peripheral nervous system, which can be correlated with neuropathic symptoms and may serve as potential markers. The aim of this paper is to review available imaging methods used for diagnosing and assessing therapeutic efficacy in CNP for both the preclinical and clinical setting. Of course, further research is required to standardize and improve detection accuracy, but available data indicate that imaging is a valuable tool that can impact the management of CNP. 相似文献
142.
Magdalena Kotaska Anna Dziubina Magorzata Szafarz Kamil Mika Marek Bednarski Noemi Nicosia Ahmed Temirak Christa E. Müller Katarzyna Kie-Kononowicz 《International journal of molecular sciences》2022,23(21)
The adenosine A2A and A2B receptors are promising therapeutic targets in the treatment of obesity and diabetes since the agonists and antagonists of these receptors have the potential to positively affect metabolic disorders. The present study investigated the link between body weight reduction, glucose homeostasis, and anti-inflammatory activity induced by a highly potent and specific adenosine A2B receptor antagonist, compound PSB-603. Mice were fed a high-fat diet for 14 weeks, and after 12 weeks, they were treated for 14 days intraperitoneally with the test compound. The A1/A2A/A2B receptor antagonist theophylline was used as a reference. Following two weeks of treatment, different biochemical parameters were determined, including total cholesterol, triglycerides, glucose, TNF-α, and IL-6 blood levels, as well as glucose and insulin tolerance. To avoid false positive results, mouse locomotor and spontaneous activities were assessed. Both theophylline and PSB-603 significantly reduced body weight in obese mice. Both compounds had no effects on glucose levels in the obese state; however, PSB-603, contrary to theophylline, significantly reduced triglycerides and total cholesterol blood levels. Thus, our observations showed that selective A2B adenosine receptor blockade has a more favourable effect on the lipid profile than nonselective inhibition. 相似文献
143.
Anna Sykua Adriana Nowak Eugenio Garribba Aliaksandr Dzeikala Magdalena Rowiska-yrek Justyna Czerwiska Waldemar Maniukiewicz Elbieta odyga-Chruciska 《International journal of molecular sciences》2023,24(1)
The three Schiff base ligands, derivatives of hesperetin, HHSB (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]isonicotinohydrazide), HIN (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]benzhydrazide) and HTSC (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]thiosemicarbazide) and their copper complexes, CuHHSB, CuHIN, and CuHTSC were designed, synthesized and analyzed in terms of their spectral characterization and the genotoxic activity. Their structures were established using several methods: elemental analysis, FT-IR, UV-Vis, EPR, and ESI-MS. Spectral data showed that in the acetate complexes the tested Schiff bases act as neutral tridentate ligand coordinating to the copper ion through two oxygen (or oxygen and sulphur) donor atoms and a nitrogen donor atom. EPR measurements indicate that in solution the complexes keep their structures with the ligands remaining bound to copper(II) in a tridentate fashion with (O–, N, Oket) or (O–, N, S) donor set. The genotoxic activity of the compounds was tested against model tumour (HeLa and Caco-2) and normal (LLC-PK1) cell lines. In HeLa cells the genotoxicity for all tested compounds was noticed, for HHSB and CuHHSB was the highest, for HTSC and CuHTSC–the lowest. Generally, Cu complexes displayed lower genotoxicity to HeLa cells than ligands. In the case of Caco-2 cell line HHSB and HTSC induced the strongest breaks to DNA. On the other side, CuHHSB and CuHTSC induced the highest DNA damage against LLC-PK1. 相似文献
144.
145.
Magdalena Laskowska Pawe Kowalczyk Agnieszka Karczmarska Karol Kramkowski Karol Wrzosek ukasz Laskowski 《International journal of molecular sciences》2023,24(1)
This article is devoted to a novel class of antimicrobial agents: nanocomposites composed of spherical silica and silver ions located at the silica’s surface with the assumed distribution. Such materials are in high demand due to the increasing threat from bacterial strains that are becoming resistant to currently known antibiotics. In particular, we focus on materials that make it possible to limit the growth of bacterial colonies on a variety of tactile surfaces. In this paper, we present a method for preparing a silica-based nanocomposite containing silver ions and the analysis of their antimicrobial properties. Our research revealed that the presence of tested nanocomposite induces very high oxidative stress in the bacteria cell, damaging and modifying bacterial DNA, creating oxidized guanines, cytosines, or adenines, which causes its very rapid destruction, leading to cell death. 相似文献
146.
147.
Eliza Judasz Natalia Lisiak Przemysaw Kopczyski Magdalena Taube Baej Rubi 《International journal of molecular sciences》2022,23(21)
Currently, breast cancer appears to be the most widespread cancer in the world and the most common cause of cancer deaths. This specific type of cancer affects women in both developed and developing countries. Prevention and early diagnosis are very important factors for good prognosis. A characteristic feature of cancer cells is the ability of unlimited cell division, which makes them immortal. Telomeres, which are shortened with each cell division in normal cells, are rebuilt in cancer cells by the enzyme telomerase, which is expressed in more than 85% of cancers (up to 100% of adenocarcinomas, including breast cancer). Telomerase may have different functions that are related to telomeres or unrelated. It has been shown that high activity of the enzyme in cancer cells is associated with poor cell sensitivity to therapies. Therefore, telomerase has become a potential target for cancer therapies. The low efficacy of therapies has resulted in the search for new combined and more effective therapeutic methods, including the involvement of telomerase inhibitors and telomerase-targeted immunotherapy. 相似文献
148.
149.
There were studied 33 patients admitted with clinical diagnosis of superficial herpetic keratitis, typical form of dendritic ulcer. In all these cases there were performed smears from the level of cornea and conjunctiva, that were stained with rapid blue polycrome tanin Dragan staining method. Smears were performed before and during the evolution of the disease, in patients specifically treated with antiviral drugs and also in cases treated unspecifically. There are described some cytological particularities which have a relative specificity for the diagnosis: a high number of lymphocytes with cytoplasmic blebs, giant multinucleated cells, and epithelial cells with degenerative lesions (nucleocytoplasmic inclusions, vacuoles, chromophobe halo around nucleus). Such lesions were not observed in patients with non herpetic keratitis. Modifications noticed in epithelial corneal cells could suggest the diagnosis, which can be associated with clinical examination, in order to administer a specific therapy. Dynamic cytological evolution shows early regression of specific cellular modifications in patients treated by Acyclovir. 相似文献
150.
Marta Legawiec-Jarzyna Wojciech Juszczyk Magdalena Bonarowska Zbigniew Kaszkur Leszek Kępiński Zbigniew Kowalczyk Zbigniew Karpiński 《Topics in Catalysis》2009,52(8):1037-1043
A series of Pt/Al2O3 catalysts were prepared by the impregnation method and were characterized by TEM, XRD, H2 and CO chemisorptions, and investigated in the hydrodechlorination of tetrachloromethane. Three Pt-rich, Pt–Au/Al2O3 catalysts (Pt100, Pt95Au5 and Pt90Au10) showed a similar metal particle size (~2.5–2.7 nm), so observed changes in the catalytic behavior are ascribed to alloying
effect, especially because a considerable degree of Pt–Au mixing was achieved in the bimetallic samples. It appeared that
by introducing very small amount of gold (10 at.%) to platinum, the catalytic activity is increased. It is argued that the
occurrence of this moderate synergistic effect is associated with a decreased tendency of surface chloriding when platinum
is alloyed with gold.
Zbigniew Kowalczyk—deceased. 相似文献