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https://www.readbyqxmd.com/read/29341920/effect-of-structural-factors-on-release-profiles-of-camptothecin-from-block-copolymer-conjugates-with-high-load-of-drug
#1
Andrzej Plichta, Sebastian Kowalczyk, Ewa Olędzka, Marcin Sobczak, Marcin Strawski
The aim of the present work was the synthesis and study the kinetics and profiles of camptothecin (CPT) release form block co- and ter-polymer conjugates comprising polylactide (PLA) segments and CPT moieties, structurally diverse by degrees of branching, content of D-PLA units and poly(ethylene glycol) methyl ether methacrylate (PEGMA). Six PLA, non-toxic macroinitiators (MIs), terminated with α-bromoester were synthesized. MIs were subjected to polymerization of CPT methacrylic derivative (CPTMA) with PEGMA at various ratios...
January 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29340965/emotional-and-social-characteristics-of-stroke-patients-with-low-verbal-memory
#2
Ewa Zawadzka, Łucja Domańska
BACKGROUND: Cognitive deficits, especially problems with memory observed after stroke often coexist with patients' experience of difficulties in everyday life situations. AIMS: The purposes of the study were to explore the relationships between verbal memory, emotional functioning and social competence in stroke patients, and to examine the emotional and social condition of stroke patients with low verbal memory. METHODS: Ninety-five participants were assessed with the Rey Auditory Verbal Learning Test, the Neuropsychology Behavior and Affect Profile, and the Social Competency Questionnaire...
January 17, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29339986/seeking-optimal-nutrition-for-healthy-body-mass-reduction-among-former-athletes
#3
Dominika Maciejewska, Małgorzata Michalczyk, Maja Czerwińska-Rogowska, Marcin Banaszczak, Karina Ryterska, Karolina Jakubczyk, Jakub Piotrwski, Joanna Hołowko, Arleta Drozd, Paweł Wysokińki, Krzysztof Ficek, Krzysztof Wilk, Anna Lubkowska, Paweł Cięszczyk, Jerzy Bertrand, Ewa Stachowska
The aim of the study was to investigate the efficacy of 6 week Mediterranean diet or 30% calorie restriction on the fatty acid profile and eicosanoids (hydroxyoctadecadienoi acids and hydroxyeicosatetraenoic acids) concentration. Furthermore, basic biochemical variables such as insulin, glucose, HOMA-IR, and a lipid profile were estimated. The study enrolled 94 Caucasian former athletes aged 20-42, with body height of 179 ± 16.00 cm and body mass of 89.26 ± 13.25 kg who had not been active for at least 5 years...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339976/detection-of-dioxin-induced-demethylation-of-mouse-cyp1a1-gene-promoter-by-a-new-labeling-method-for-short-dna-fragments-possessing-5-methylcytosine-at-the-end
#4
Hisaka Kurita, Toshiki Aiba, Toshiyuki Saito, Seiichiroh Ohsako
Environmental factors stimulate alteration of DNA methylation level. Investigation of the genome-wide DNA methylation status is important for environmental health studies. We here designed a genomic DNA amplification and labeling protocol using a methylation-sensitive restriction enzyme HinP1 I. This method can specifically amplify genomic DNA fragments possessing methyl-CpG at the end. The fragments are a relatively short size and dominantly located on CpG-islands. By using the samples prepared by this method, a dioxin-induced change in the methylation level of the mouse Cyp1a1 promoter was successfully evaluated using oligonucleotide probes covalently bound onto a glass plate...
2018: Genes and Environment: the Official Journal of the Japanese Environmental Mutagen Society
https://www.readbyqxmd.com/read/29339491/kinase-independent-function-of-e-type-cyclins-in-liver-cancer
#5
Yan Geng, Wojciech Michowski, Joel M Chick, Yaoyu E Wang, M Emmanuelle Jecrois, Katharine E Sweeney, Lijun Liu, Richard C Han, Nan Ke, Agnieszka Zagozdzon, Ewa Sicinska, Roderick T Bronson, Steven P Gygi, Piotr Sicinski
E-type cyclins (cyclins E1 and E2) are components of the core cell cycle machinery and are overexpressed in many human tumor types. E cyclins are thought to drive tumor cell proliferation by activating the cyclin-dependent kinase 2 (CDK2). The cyclin E1 gene represents the site of recurrent integration of the hepatitis B virus in the pathogenesis of hepatocellular carcinoma, and this event is associated with strong up-regulation of cyclin E1 expression. Regardless of the underlying mechanism of tumorigenesis, the majority of liver cancers overexpress E-type cyclins...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339257/changes-in-the-concentrations-of-inflammatory-and-oxidative-status-biomediators-mip-1-%C3%AE-pmn-elastase-mda-and-il-12-in-depressed-patients-with-and-without-posttraumatic-stress-disorder
#6
Ewa A Ogłodek
BACKGROUND: Both proinflammatory cytokines and oxidative stress are considered an imbalance between the cellular production of reactive oxygen species and the antioxidant defense mechanisms. An inflammatory response that occurs in depression leads to a synergy between pro-inflammatory cytokines and oxidative stress. This synergy induces common signal transduction pathways that boost the inflammatory cascade. The object of this study was to assess the concentrations of inflammatory and oxidative status biomediators such as MIP-1α, PMN elastase, MDA, and IL-12 in depressed patients with and without posttraumatic stress disorder (PTSD), and with PTSD alone...
August 26, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29339043/the-relationship-between-red-cell-distribution-width-and-cancer-specific-survival-in-patients-with-renal-cell-carcinoma-treated-with-partial-and-radical-nephrectomy
#7
Marcin Życzkowski, Paweł Rajwa, Ewa Gabrys, Karolina Jakubowska, Ewelina Jantos, Andrzej Paradysz
INTRODUCTION: The aim of the study was to evaluate the influence of red cell distribution width (RDW) on cancer-specific survival (CSS) in patients who undergo nephrectomy for renal cell carcinoma (RCC). PATIENTS AND METHODS: A total number of 434 patients with pathologically proven RCC treated with radical or partial nephrectomy between 2003 and 2012 were identified in a single tertiary academic center. To evaluate the accuracy of RDW for CSS prediction, a receiver operating characteristic (ROC) curve was plotted...
December 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29337863/dairy-related-dietary-patterns-dietary-calcium-body-weight-and-composition-a-study-of-obesity-in-polish-mothers-and-daughters-the-modaf-project
#8
Lidia Wadolowska, Natalia Ulewicz, Kamila Sobas, Justyna W Wuenstel, Malgorzata A Slowinska, Ewa Niedzwiedzka, Magdalena Czlapka-Matyasik
The role of the family environment in regards to dairy products and dietary calcium in the context of obesity is not fully understood. The aim of the study was to investigate the association among dairy-related dietary patterns (DDPs), dietary calcium, body weight and composition in mothers and daughters. Data were collected through a cross-sectional survey within the MODAF Project. A total sample of 712 pairs of mothers (<60 years) and daughters (12-21 years) was studied. This study included 691 pairs. A semi-quantitative food frequency questionnaire (ADOS-Ca) was used to collect dietary data...
January 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29337848/identifying-pre-existing-ns3-and-ns5a-resistance-associated-variants-and-transmission-chains-in-the-polish-hiv-hcv-genotype-1-epidemic-impact-on-prevention-and-treatment
#9
Miłosz Parczewski, Iwona Cielniak, Justyna Kordek, Bogusz Aksak-Wąs, Anna Urbańska, Magdalena Leszczyszyn-Pynka, Ewa Siwak, Monika Bociąga-Jasik, Anna Nowak, Aleksandra Szymczak, Małgorzata Zalewska, Władysław Łojewski, Anne-Mieke Vandamme, Nadine Lübke, Lize Cuypers
BACKGROUND: Hepatitis C virus (HCV) resistance-associated variants (RAVs) have been shown to adversely affect treatment response of direct-acting antivirals (DAAs). Identifying pre-existing RAVs and transmission networks among HIV/HCV genotype 1 (G1) infected patients from Poland will assist in shaping surveillance strategies for HCV. METHODS: NS3 and NS5A sequences were obtained from samples of 112 DAA-naive G1 patients (45 G1a, 67 G1b), of which 74 were chronically infected and 38 were diagnosed with acute hepatitis C (AHC)...
January 15, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29335416/lack-of-pronounced-changes-in-the-expression-of-fatty-acid-handling-proteins-in-adipose-tissue-and-plasma%C3%A2-of-morbidly-obese-humans
#10
Ewa Anna Grzegorczyk, Ewa Harasim-Symbor, Bartlomiej Lukaszuk, Dorota Harasiuk, Barbara Choromanska, Piotr Mysliwiec, Malgorzata Zendzian-Piotrowska, Adrian Chabowski
BACKGROUND/OBJECTIVES: Fatty acid handling proteins are involved in the process of accumulation of lipids in different fat tissue depots. Thus, the aim of the study was to estimate the expression of both fatty acid transport and binding proteins in the subcutaneous (SAT) and visceral adipose tissue (VAT) of patients with morbid obesity without metabolic syndrome, as well as the plasma concentrations of these transporters. SUBJECTS/METHODS: Protein (Western blotting) and mRNA (Real-time PCR) expression of selected fatty acid handling proteins was assessed in the visceral and subcutaneous adipose tissue of 30 patients with morbid obesity...
January 15, 2018: Nutrition & Diabetes
https://www.readbyqxmd.com/read/29335413/heliconical-smectic-phases-formed-by-achiral-molecules
#11
Jordan P Abberley, Ross Killah, Rebecca Walker, John M D Storey, Corrie T Imrie, Mirosław Salamończyk, Chenhui Zhu, Ewa Gorecka, Damian Pociecha
Chiral symmetry breaking in soft matter is a hot topic of current research. Recently, such a phenomenon was found in a fluidic phase showing orientational order of molecules-the nematic phase; although built of achiral molecules, the phase can exhibit structural chirality-average molecular direction follows a short-pitch helix. Here, we report a series of achiral asymmetric dimers with an odd number of atoms in the spacer, which form twisted structures in nematic as well as in lamellar phases. The tight pitch heliconical nematic (NTB) phase and heliconical tilted smectic C (SmCTB) phase are formed...
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29335387/clear-cell-carcinoma-of-the-abdominal-wall
#12
Ewa Kostrzeba, M Barczyk, M Wichtowski, R Garstecki, D Murawa
BACKGROUND: Clear cell carcinoma in scars after cesarean section is extremely rare, with only 22 cases reported in the literature. Management of this condition needs to be further explored. Here, we report of a patient with clear cell carcinoma of the abdominal wall that developed 35 years after cesarean section. CASE REPORT: The material of the study was a group of 61 patients divided into two groups. Group I - 35 deaf or with profound sensorineural hearing loss children (the pupils of the deaf and hard of hearing school), aged 5-17 years (average 9,2 years), 14 males, 21 females, II - control group comprised 26 normal hearing patients, aged 5-16 years (average 10,4 years), 14 males, 12 females (patients of Department of Pediatric Otolaryngology, Audiology and Phoniatrics, Medical University of Lodz)...
December 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/29334905/efficacy-comparison-of-multi-phase-ct-and-hepatotropic-contrast-enhanced-mri-in-the-differential-diagnosis-of-focal-nodular-hyperplasia-a-prospective-cohort-study
#13
Tomasz K Nowicki, Karolina Markiet, Ewa Izycka-Swieszewska, Katarzyna Dziadziuszko, Michal Studniarek, Edyta Szurowska
BACKGROUND: Different clinical behaviour influences the importance of differentiating focal nodular hyperplasia (FNH) from other focal liver lesions (FLLs). The aim of this study was to compare the efficacy of contrast-enhanced CT and MRI in the diagnosis of FNH. METHODS: 157 patients with equivocal FLLs detected in ultrasonography subsequently underwent multi-phase CT and MRI with the use of hepatotropic contrast agent (Gd-BOPTA) in a 1.5 T scanner. Examinations were evaluated by three independent readers...
January 15, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29334225/the-fate-of-poly-3-octylthiophene-transducer-in-solid-contact-ion-selective-electrodes
#14
Ewa Jaworska, Maciej Mazur, Krzysztof Maksymiuk, Agata Michalska
An experimental approach allowing visualization and quantification of underestimated spontaneous process of partition of conducting polymer transducer material to the ion-selective membrane phase is proposed. The approach proposed is based on optical properties of the transducer material applied, using polythiophene as a model system. It is shown that this process occurs not only during sensor preparation step but also during pretreatment of the sensor before use. As shown, this uncontrolled partition of the transducer to the receptor leads to conducting polymer contents in the membrane phase reaching 0...
January 15, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29332262/tumor-expression-of-survivin-p53-cyclin-d1-osteopontin-and-fibronectin-in-predicting-the-response-to-neo-adjuvant-chemotherapy-in-children-with-advanced-malignant-peripheral-nerve-sheath-tumor
#15
Gabrielle Karpinsky, Malgorzata A Krawczyk, Ewa Izycka-Swieszewska, Aleksandra Fatyga, Agnieszka Budka, Walentyna Balwierz, Grazyna Sobol, Beata Zalewska-Szewczyk, Magdalena Rychlowska-Pruszynska, Teresa Klepacka, Bozenna Dembowska-Baginska, Bernarda Kazanowska, Anna Gabrych, Ewa Bien
PURPOSE: Selected cell-cycle regulators and extracellular matrix proteins were found to play roles in malignant peripheral nerve sheath tumor (MPNST) biology. We aimed to analyze whether initial tumor tissue expressions of survivin, p53, cyclin D1, osteopontin (OPN) and fibronectin (FN) correlate with the response to neo-adjuvant CHT (naCHT) in children with advanced inoperable MPNST. METHODS: The study included 26 children with MPNST (M/F 14/12, median age 130 months) treated in Polish centers of pediatric oncology between 1992 and 2013...
January 13, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29332026/medicinal-plant-materials-in-the-treatment-of-anxiety-disorders-neurobiological-aspects
#16
Miłosz Jan Gołyszny, Ewa Obuchowicz
Context • Pathological anxiety, which affects approximately one-third of the world population, is an inadequate, irrational reaction of an organism to the environment and to a potential threat. Despite advancements in pharmacotherapy for anxiety disorders, further studies are still necessary to search for new substances possessing the desired anxiolytic effects, with as few unwanted effects as possible. Objective • This study intended to examine the characteristics of medicinal plant materials that exhibit anxiolytic properties, with a special emphasis on the mechanisms of action of their active ingredients on the systems involved in the pathophysiology of anxiety...
January 15, 2018: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29325093/a-comprehensive-caenorhabditis-elegans-n-glycan-shotgun-array
#17
Ewa Jankowska, Lisa M Parsons, Xuezheng Song, Dave F Smith, Richard D Cummings, John F Cipollo
Here we present a Caenorhabditis elegans N-glycan shotgun array. This nematode serves as a model organism for many areas of biology including but not limited to tissue development, host-pathogen interactions, innate immunity, and genetics. C. elegans N-glycans contain structural motifs that are also found in other nematodes as well as trematodes and lepidopteran species. Glycan binding toxins that interact with C. elegans glycoconjugates also do so with some agriculturally relevant species, such as Haemonchus contortus, Ascaris suum, Oesophagostomum dentatum and Trichoplusia ni...
January 9, 2018: Glycobiology
https://www.readbyqxmd.com/read/29325019/deep-molecular-phenotypes-link-complex-disorders-and-physiological-insult-to-cpg-methylation
#18
Shaza B Zaghlool, Dennis O Mook-Kanamori, Sara Kader, Nisha Stephan, Anna Halama, Rudolf Engelke, Hina Sarwath, Eman K Al-Dous, Yasmin A Mohamoud, Werner Roemisch-Margl, Jerzy Adamski, Gabi Kastenmüller, Nele Friedrich, Alessia Visconti, Pei-Chien Tsai, Tim Spector, Jordana Bell, Mario Falchi, Annika Wahl, Melanie Waldenberger, Annette Peters, Christian Gieger, Maija Pezer, Gordan Lauc, Johannes Graumann, Joel A Malek, Karsten Suhre
Epigenetic regulation of cellular function provides a mechanism for rapid organismal adaptation to changes in health, lifestyle, and environment. Associations of cytosine-guanine di-nucleotide (CpG) methylation with clinical endpoints that overlap with metabolic phenotypes suggest a regulatory role for these CpG sites in the body's response to disease or environmental stress. We previously identified 20 CpG sites in an epigenome-wide association study (EWAS) with metabolomics that were also associated in recent EWASs with diabetes-, obesity-, and smoking-related endpoints...
January 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29324763/factors-associated-with-urinary-tract-infections-among-hiv-1-infected-patients
#19
Agata Skrzat-Klapaczyńska, Bartłomiej Matłosz, Agnieszka Bednarska, Marcin Paciorek, Ewa Firląg-Burkacka, Andrzej Horban, Justyna D Kowalska
BACKGROUND: Urinary tract infections remain an important yet underinvestigated clinical problem among HIV infected patients. Here we analyze factors associated with its occurrence and the spectrum of bacterial pathogens identified in the group of patients followed at the HIV Out-Patient Clinic in Warsaw. METHODS: Clinic database collected all medical information on patients routinely followed since 1994 to 2015. All patients with available urine culture were included into analyses, only the first culture was included...
2018: PloS One
https://www.readbyqxmd.com/read/29324336/new-1-5-and-2-5-disubstituted-tetrazoles-dependent-activity-towards-surface-barrier-of-candida-albicans
#20
Monika Staniszewska, Małgorzata Gizińska, Ewa Mikulak, Klaudia Adamus, Mirosława Koronkiewicz, Edyta Łukowska-Chojnacka
A series of novel tetrazole derivatives was synthetized using N-alkylation or Michael-type addition reactions, and screened for their fungistatic potential against Candida albicans (the lack of endpoint = 100%). Among them, the selected compounds 2d, 4b, and 6a differing in substituents at the tetrazole ring were non-toxic to Galleria mellonella larvae in vivo and exerted slight toxicity against Caco-2 in vitro (CC50 at 256 μg/mL). An antagonistic effect of tetrazole derivatives 2d, 4b, and 6a respectively in combination with Fluconazole was shown using the checker board and colorimetric methods (fractional inhibitory concentration indexes FICIs >1)...
December 30, 2017: European Journal of Medicinal Chemistry
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