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https://www.readbyqxmd.com/read/28212265/variations-in-oxidative-stress-levels-in-3-days-follow-up-in-ultramarathon-mountain-race-athletes
#1
Ypatios Spanidis, Dimitrios Stagos, Marina Orfanou, Nikolaos Goutzourelas, David Bar-Or, Demetrios Spandidos, Demetrios Kouretas
Spanidis, Y, Stagos, D, Orfanou, M, Goutzourelas, N, Bar-or, D, Spandidos, D, and Kouretas, D. Variations in oxidative stress levels in 3 days follow-up in ultramarathon mountain race athletes. J Strength Cond Res 31(3): 582-594, 2017-The aim of the present study was the monitoring of the redox status of runners participating in a mountain ultramarathon race of 103 km. Blood samples from 12 runners were collected prerace and 24, 48, and 72 hours postrace. The samples were analyzed by using conventional oxidative stress markers, such as protein carbonyls (CARB), thiobarbituric acid reactive substances (TBARS), total antioxidant capacity (TAC) in plasma, as well as glutathione (GSH) levels and catalase (CAT) activity in erythrocytes...
March 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28105335/detection-of-stanozolol-in-the-urine-of-athletes-at-a-pg-level-the-possibility-of-passive-exposure
#2
Christina Tsitsimpikou, Konstantinos Tsarouhas, Demetrios A Spandidos, Aristides M Tsatsakis
Stanozolol is a synthetic heterocyclic steroid with anabolic and androgenic properties, which has been abused by several high-profile professional athletes. Stanozolol is also used in veterinary medicine to increase appetite, cause weight gain and treat certain types of anemia. The detection of stanozolol metabolites in human urine for doping control purposes depends on the analytical method applied. The most commonly applied methods in the World Anti-Doping Agency (WADA)-accredited doping control laboratories are gas chromatography/high-resolution mass spectrometry (GC/HRMS) or gas chromatography-mass spectrometry (GC/MS/MS)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28075446/nf%C3%A2-%C3%AE%C2%BAb-inhibition-is-associated-with-opn-mmp%C3%A2-9-downregulation-in-cutaneous-melanoma
#3
Claudio Guarneri, Valentina Bevelacqua, Jerry Polesel, Luca Falzone, Patrizia S Cannavò, Demetrios A Spandidos, Grazia Malaponte, Massimo Libra
The development of cutaneous melanoma is influenced by genetic factors, including BRAF mutations and environmental factors, such as ultraviolet exposure. Its progression has been also associated with the involvement of several tumour microenvironmental molecules. Among these, nuclear factor‑κB (NF‑κB) has been indicated as a key player of osteopontin (OPN) and matrix metalloproteinase‑9 (MMP‑9) activation. However, whether NF‑κB plays a role in the development and progression of melanoma in association with the OPN/MMP‑9 axis according to the BRAFV600E mutation status has not been investigated in detail to date...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28005022/complex-interplay-of-dna-damage-dna-repair-genes-and-oxidative-stress-in-coronary-artery-disease
#4
EDITORIAL
Elena Vakonaki, Konstantinos Tsarouhas, Demetrios A Spandidos, Aristidis M Tsatsakis
No abstract text is available yet for this article.
December 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/27959419/antimicrobial-resistance-development-following-surgical-site-infections
#5
Daniela Călina, Anca Oana Docea, Lucica Rosu, Ovidiu Zlatian, Alexandra Floriana Rosu, Florin Anghelina, Otilia Rogoveanu, Andreea Letiția Arsene, Alina Crenguța Nicolae, Cristina Manuela Drăgoi, John Tsiaoussis, Aristides M Tsatsakis, Demetrios A Spandidos, Nikolaos Drakoulis, Eliza Gofita
Surgical site infections (SSIs) determine an increase in hospitalization time and antibiotic therapy costs. The aim of this study was to identify the germs involved in SSIs in patients from the Clinical Emergency County Hospital of Craiova (SCJUC) and to assess their resistance to antimicrobials, with comparisons between surgical wards and the intensive care unit (ICU). The biological samples were subjected to classical bacteriological diagnostics. Antibiotic resistance was tested by disc diffusion. We used hierarchical clustering as a method to group the isolates based upon the antibiotic resistance profile...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27943100/k-ras-h-ras-n-ras-and-b-raf-mutation-and-expression-analysis-in-wilms-tumors-association-with-tumor-growth
#6
Efterpi Dalpa, Victor Gourvas, Nikolaos Soulitzis, Demetrios A Spandidos
Nephroblastoma (Wilms tumor) is a kidney neoplasia, predominately occurring at very young age, resulting from the malignant transformation of renal stem cells. The Ras proto-oncogenes and B-Raf are members of an intracellular cascade pathway, which regulates cell growth and differentiation, and ultimately cancer development. Our objective was to determine the mutation rate and to measure the mRNA levels of the three Ras genes and of B-Raf in formalin-fixed paraffin-embedded tissue samples from 32 patients with nephroblastoma and 10 controls...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27909725/lipoprotein-redox-status-evaluation-as-a-marker-of-cardiovascular-disease-risk-in-patients-with-inflammatory-disease
#7
Anca Ungurianu, Denisa Margină, Daniela Grădinaru, Claudia Băcanu, Mihaela Ilie, Christina Tsitsimpikou, Konstantinos Tsarouhas, Demetrios A Spandidos, Aristides M Tsatsakis
Patients with chronic inflammatory disorders (ID) have an increased risk of developing cardiovascular disease, and routinely determined parameters do not reveal the real metabolic status of specific subgroups, such as patients with rheumatoid arthritis (RA). In this study, in order to evaluate state of the art markers for the assessment of cardiometabolic risk, abnormalities in lipoprotein levels in patients with a low‑grade inflammatory status [diabetes mellitus (DM) subgroup] and in patients with a high systemic inflammatory burden (RA subgroup) was determined...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27900005/fluoro-edenite-induces-fibulin-3-overexpression-in-non-malignant-human-mesothelial-cells
#8
Venerando Rapisarda, Rossella Salemi, Andrea Marconi, Carla Loreto, Adriana C Graziano, Venera Cardile, Maria S Basile, Saverio Candido, Luca Falzone, Demetrios A Spandidos, Concettina Fenga, Massimo Libra
Exposure to asbestos is associated with the development of mesothelioma. In addition to asbestos, other fibers have been identified as risk factors for malignant and non-malignant diseases of the lungs. Among these, fluoro-edenite (FE) was found in patients from Biancavilla (Sicily, Italy) with pleural and lung disease, suggesting its role for tumor expansion. In this context, the identification of early biomarkers useful for the diagnosis of cancer is mandatory. Fibulin-3 represents an important marker for the diagnosis of mesothelioma...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27769060/mir-185-akt-and-mir-29a-collagen-1a-pathways-are-activated-in-ipf-bal-cells
#9
Eliza Tsitoura, Athol U Wells, Kostantinos Karagiannis, Ismini Lasithiotaki, Eirini Vasarmidi, Eleni Bibaki, Chara Koutoulaki, Hiroe Sato, Demetrios A Spandidos, Nikolaos M Siafakas, George Sourvinos, Katerina M Antoniou
MicroRNA signatures of BAL cells and alveolar macrophages are currently lacking in IPF. Here we sought to investigate the expression of fibrosis-related microRNAs in the cellular component of the BAL in IPF. We thus focused on microRNAs previously associated with fibrosis (miR-29a, miR-29b, miR-29c, let-7d, and miR-21) and rapid IPF progression (miR-185, miR-210, miR-302c-3p miR-376c and miR-423-5p). Among the tested microRNAs miR-29a and miR-185 were found significantly downregulated in IPF while miR-302c-3p and miR-376c were not expressed by BAL cells...
15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27748930/mirnas-and-their-role-in-the-correlation-between-schizophrenia-and-cancer-review
#10
E Rizos, N Siafakas, E Skourti, C Papageorgiou, J Tsoporis, T H Parker, D I Christodoulou, D A Spandidos, E Katsantoni, V Zoumpourlis
Schizophrenia (SZ) and cancer (Ca) have a broad spectrum of clinical phenotypes and a complex biological background, implicating a large number of genetic and epigenetic factors. SZ is a chronic neurodevelopmental disorder signified by an increase in the expression of apoptotic molecular signals, whereas Ca is conversely characterized by an increase in appropriate molecular signaling that stimulates uncontrolled cell proliferation. The rather low risk of developing Ca in patients suffering from SZ is a hypothesis that is still under debate...
December 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27748850/occupational-exposure-to-carcinogens-benzene-pesticides-and-fibers-review
#11
Luca Falzone, Andrea Marconi, Carla Loreto, Sabrina Franco, Demetrios A Spandidos, Massimo Libra
It is well known that the occupational exposure to contaminants and carcinogens leads to the development of cancer in exposed workers. In the 18th century, Percivall Pott was the first to hypothesize that chronic exposure to dust in the London chimney sweeps was associated with an increased risk of developing cancer. Subsequently a growing body of evidence indicated that other physical factors were also responsible for oncogenic mutations. Over the past decades, many carcinogens have been found in the occupational environment and their presence is often associated with an increased incidence of cancer...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27602111/hpv-strain-distribution-in-patients-with-genital-warts-in-a-female-population-sample
#12
Daniel Boda, Monica Neagu, Carolina Constantin, Razvan Nicolae Voinescu, Constantin Caruntu, Sabina Zurac, Demetrios A Spandidos, Nikolaos Drakoulis, Dimitrios Tsoukalas, Aristides M Tsatsakis
The incidence of human papillomavirus (HPV) in the human cancer domain is still a subject of intensive study. In this study, we examined cervical swab samples from 713 females with genital warts, and tested the samples for high- and low-risk genital HPV. HPV genotyping was assessed using a Genotyping test that detects HPV by the amplification of target DNA using polymerase chain reaction and nucleic acid hybridization. In total, we detected 37 anogenital HPV DNA genotypes [6, 11, 16, 18, 26, 31, 33, 35, 39, 40, 42, 45, 51, 52, 53, 54, 55, 56, 58, 59, 61, 62, 64, 66, 67, 68, 69, 70, 71, 72, 73 (MM9), 81, 82 (MM4), 83 (MM7), 84 (MM8), IS39 and CP6108] and investigated the incidence of these genotypes in the patients with genital warts...
September 2016: Oncology Letters
https://www.readbyqxmd.com/read/27600395/occupational-and-environmental-exposure-to-pesticides-and-cytokine-pathways-in-chronic-diseases-review
#13
Silvia Gangemi, Eliza Gofita, Chiara Costa, Michele Teodoro, Giusi Briguglio, Dragana Nikitovic, George Tzanakakis, Aristides M Tsatsakis, Martin F Wilks, Demetrios A Spandidos, Concettina Fenga
Pesticides can exert numerous effects on human health as a consequence of both environmental and occupational exposures. The available knowledge base suggests that exposure to pesticides may result in detrimental reproductive changes, neurological dysfunction and several chronic disorders, which are defined by slow evolution and long-term duration. Moreover, an ever increasing amount of data have identified an association between exposure to pesticides and the harmful effects on the immune system. The real impact of alterations in humoral cytokine levels on human health, in particular in the case of chronic diseases, is still unclear...
October 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27599669/the-molecular-basis-of-fertilization-review
#14
Katerina Georgadaki, Nikolas Khoury, Demetrios A Spandidos, Vasilis Zoumpourlis
Fertilization is the fusion of the male and female gamete. The process involves the fusion of an oocyte with a sperm, creating a single diploid cell, the zygote, from which a new individual organism will develop. The elucidation of the molecular mechanisms of fertilization has fascinated researchers for many years. In this review, we focus on this intriguing process at the molecular level. Several molecules have been identified to play a key role in each step of this intriguing process (the sperm attraction from the oocyte, the sperm maturation, the sperm and oocyte fusion and the two gamete pronuclei fusion leading to the zygote)...
October 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27588053/influence-of-multi-walled-carbon-nanotubes-on-the-cognitive-abilities-of-wistar-rats
#15
Nina V Sayapina, Alexander A Sergievich, Vladimir L Kuznetsov, Vladimir V Chaika, Irina G Lisitskaya, Pavel P Khoroshikh, Tatyana A Batalova, Kostas Tsarouhas, Demetrios Spandidos, Aristidis M Tsatsakis, Concettina Fenga, Kirill S Golokhvast
Studies of the neurobehavioral effects of carbon nanomaterials, particularly those of multi-walled carbon nanotubes (MWCNTs), have concentrated on cognitive effects, but data are scarce. The aim of this study was to assess the influence of MWCNTs on a number of higher nervous system functions of Wistar rats. For a period of 10 days, two experimental groups were fed with MWCNTs of different diameters (MWCNT-1 group, 8-10 nm; MWCNT-2 group, 18-20 nm) once a day at a dosage of 500 mg/kg. In the open-field test, reductions of integral indications of researching activity were observed for the two MWCNT-treated groups, with a parallel significant (P<0...
September 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27572115/heparin-regulates-b6fs-cell-motility-through-a-fak-actin-cytoskeleton-axis
#16
Kallirroi Voudouri, Dragana Nikitovic, Aikaterini Berdiaki, Dionysios J Papachristou, John Tsiaoussis, Demetrios A Spandidos, Aristides M Tsatsakis, George N Tzanakakis
Soft tissue sarcomas are rare, heterogeneous tumors of mesenchymal origin with an aggressive behavior. Heparin is a mixture of heavily sulfated, linear glycosaminoglycan (GAG) chains, which participate in the regulation of various cell biological functions. Heparin is considered to have significant anticancer capabilities, although the mechanisms involved have not been fully defined. In the present study, the effects of unfractionated heparin (UFH) and low‑molecular‑weight heparin (LMWH) on B6FS fibrosarcoma cell motility were examined...
November 2016: Oncology Reports
https://www.readbyqxmd.com/read/27533249/aberrant-expression-of-mir-21-mir-376c-and-mir-145-and-their-target-host-genes-in-merkel-cell-polyomavirus-positive-non-small-cell-lung-cancer
#17
Ismini Lasithiotaki, Eliza Tsitoura, Anastasios Koutsopoulos, Eleni Lagoudaki, Chara Koutoulaki, George Pitsidianakis, Demetrios A Spandidos, Nikolaos M Siafakas, George Sourvinos, Katerina M Antoniou
Merkel Cell Polyoma Virus (MCPyV) infection has been associated with non-small cell lung cancer (NSCLC). Viruses can manipulate cellular miRNAs or have a profound impact on cellular miRNA expression to control host regulatory pathways. In this study, we evaluated the expression profiles of cancer-associated and virally affected host microRNAs miR-21, miR-145, miR-146a, miR-155, miR-302c, miR-367 and miR-376c in a series of NSCLC tissue samples as well as in samples from "healthy" sites, distant from the tumour region that were either positive or negative for MCPyV DNA...
August 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27499459/parathyroid-hormone-parathyroid-hormone-related-peptide-regulate-osteosarcoma-cell-functions-focus-on-the-extracellular-matrix-review
#18
Dragana Nikitovic, Rafaela-Maria Kavasi, Aikaterini Berdiaki, Dionysios J Papachristou, John Tsiaoussis, Demetrios A Spandidos, Aristides M Tsatsakis, George N Tzanakakis
Osteosarcoma (OS) is a primary bone tumor of mesenchymal origin mostly affecting children and adolescents. The OS extracellular matrix (ECM) is extensively altered as compared to physiological bone tissue. Indeed, the main characteristic of the most common osteoblastic subtype of OS is non‑mineralized osteoid production. Parathyroid hormone (PTH) is a polypeptide hormone secreted by the chief cells of the parathyroid glands. The PTH-related peptide (PTHrP) may be comprised of 139, 141 or 173 amino acids and exhibits considerate N‑terminal amino acid sequence homology with PTH...
October 2016: Oncology Reports
https://www.readbyqxmd.com/read/27498704/the-resveratrol-analogue-3-4-5-4-%C3%A2-trans-tetramethoxystilbene-inhibits-the-growth-of-a375-melanoma-cells-through-multiple-anticancer-modes-of-action
#19
Vasilis P Androutsopoulos, Irene Fragiadaki, Demetrios A Spandidos, Androniki Tosca
Resveratrol is a natural dietary product that has demonstrated multifaceted anticancer activity. Several analogues of resveratrol have been synthesized in an effort to enhance the pharmacological potency and improve the pharmacokinetic properties of the compound. 3,4,5,4'‑trans‑tetramethoxystilbene (3,4,5,4'‑TMS) is a methoxylated analogue of resveratrol that has demonstrated anti-proliferative activity in vitro (in cancer cell lines) and in vivo (in xenograft models). In the present study, the anticancer effects of 3,4,5,4'‑TMS in A375 human melanoma cells were examined...
October 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27465629/variations-in-oxidative-stress-levels-in-three-days-follow-up-in-ultra-marathon-mountain-race-athletes
#20
Spanidis Ypatios, Stagos Dimitrios, Orfanou Marina, Goutzourelas Nikolaos, Bar-Or David, Spandidos Demetrios, Kouretas Demetrios
The aim of the present study was the monitoring of the redox status of runners participating in a mountain ultra-marathon race of 103 km. Blood samples from 12 runners were collected pre race and 24, 48 and 72 h post race. The samples were analyzed by using conventional oxidative stress markers, such as protein carbonyls (CARB), thiobarbituric acid reactive substances (TBARS), total antioxidant capacity (TAC) in plasma, as well as glutathione (GSH) levels and catalase (CAT) activity in erythrocytes. In addition, two novel markers the static oxidation-reduction potential marker (sORP) and the capacity oxidation-reduction potential (cORP) were measured in plasma...
July 25, 2016: Journal of Strength and Conditioning Research
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