38 research outputs found

    Association analysis of Epworth Sleepiness Scale (ESS) scores with serotonin transporter (5-HTT- LPR, 5-HTT-VNTR) and circadian (PER3-VNTR) genes

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    Excessive daytime sleepiness (EDS) is a common complaint encountered in clinical practice with serious consequences both for individual and society since it can increase the ratio of motor vehicle accidents, work- related incidents, and deaths. Moreover, it also manifests less serious individual consequences. This study aimed to investigate the potential role of PER3-VNTR, 5-HTT-LPR, and 5-HTT-VNTR in terms of constituting liability to EDS. Two hundred eighteen participants (93 complaining about daytime sleepiness and 125 individuals with no serious complaint) were recruited in the study. General daytime of sleepiness was quantified with Epworth sleepiness scale (ESS). DNA extractions were performed from collected blood samples with standart salting-out procedure and genotyped. ESS scores displayed difference between individuals suffering from sleep disturbances and other individuals with values of 12.75±4.55 and 6.34±4.26, respectively. PER3- VNTR and 5-HTT-LPR genotypes did not display association with mean ESS scores. However, 5-HTT-VNTR genotypes showed significant association with mean ESS scores; individuals with 10/10 genotypes had the highest ESS score reflecting this genotype as a liability factor for EDS. We strongly recommend further studies based on circadian/serotonin pathway genes in different populations to reach to a consensus and highlight sleep genetic marker genes which then can be the future targets of pharmacological treatment studies for sleep problems

    Antinuclear antibody testing in a Turkish pediatrics clinic: is it always necessary?

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    Introduction: the term anti-nuclear antibody (ANA) is used to define a large group of autoantibodies which specifically bind to nuclear elements. Although healthy individuals may also have ANA positivity, the measurement of ANA is generally used in the diagnosis of autoimmune disorders. However, various studies have shown that ANA testing may be overused, especially in pediatrics clinics. Our aim was to investigate the reasons for antinuclear antibody (ANA) testing in the general pediatrics and pediatric rheumatology clinics of our hospital and to determine whether ANA testing was ordered appropriately by evaluating chief complaints and the ultimate diagnoses of these cases. Methods: the medical records of pediatric patients in whom ANA testing was performed between January 2014 and June 2016 were retrospectively evaluated. Subjects were grouped according to the indication for ANA testing and ANA titers. Results: ANA tests were ordered in a total of 409 patients during the study period, with 113 positive ANA results. The ANA test was ordered mostly due to joint pain (50% of the study population). There was an increased likelihood of autoimmune rheumatic diseases (ARDs) with higher ANA titer. The positive predictive value of an ANA test was 16% for any connective tissue disease and 13% for lupus in the pediatric setting. Conclusion: in the current study, more than one-fourth of the subjects were found to have ANA positivity, while only 15% were ultimately diagnosed with ARDs. Our findings underline the importance of an increased awareness of correct indications for ANA testing

    DETERMINATION OF ZOOPLANKTON COMMUNITY STRUCTURE, BIOMASS AND TROPHIC STATE OF A SHALLOW TURBID LAKE

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    Lake Manyas is an important area for bird conservation, due to its location along the world wide migratory waterbird route. Heavy cyanobacterial blooms occur in this highly turbid and shallow lake during summer and early autumn months, and excessive fish kills were observed after the blooms. The purpose of the present study was to characterize the zooplankton fauna of the pelagic food web to its relationship with selected water quality variables, and to evaluate its contribution to the food chain namely as abundance and diversity in a hypereutrophic shallow lake. Zooplankton and water samples were collected bimonthly at five stations from the open water of the lake between July 2010 and February 2012. During the study period a total of 48 taxa were recorded (3 taxa for Copepoda, 6 taxa for Cladocera, and 39 taxa for Rotifera). Rotifera was the most abundant group of the zooplankton community, comprising 81.2% of all samples, followed by Copepods 10.3% and Cladocerans 8.5%. Zooplankton community of the lake was dominated by eurytopic euplanktonic species Keratella cochlearis (21.8%). According to the Q(B/T) index, Lake Manyas showed a eutrophic character (Q(B/T)=2.3). The outcome of the statistical analysis showed that zooplankton fauna and its abundance were influenced mainly by water temperature, suspended particulate matter, and Secchi disk depth (transparency), respectively. The dense turbidity of Lake Manyas may be responsible for the elimination of sensitive organisms (larger sized cladocerans and copepods) over time, and also allow the dominancy of rotifers. Moreover cyanobacterial blooms affected crustaceans negatively, through poor food quality and harmful toxins. Temperature had a positive effect on rotifers as a result of population growth rates and available food. Consequently, the main factors that altered the composition and abundance of zooplankton in Lake Manyas were determined to be physical variables and favorable food availability

    Outcomes of patients with anal cancer treated with volumetric-modulated arc therapy or intensity-modulated radiotherapy and concurrent chemotherapy

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    Aims: To evaluate the results of chemoradiation with intensity-modulated radiation therapy (IMRT) or volumetric-modulated arc therapy (VMAT) for the treatment of anal canal cancer patients at three institutions that had advanced devices. Materials and Methods: A retrospective analysis was performed for patients treated with 5-fluorouracil and mitomycin-based chemotherapy and IMRT or VMAT for anal cancer from 2011 to 2013. Complete response (CR) rates, colostomy-free survival (CFS), disease-free survival (DFS), overall survival (OS), and toxicities were investigated. Toxicities were evaluated with the Common Terminology Criteria for Adverse Events, Version 3.0. Results: Fifteen patients were included in the analysis. The majority of patients had T2 (53.3%) and N0 (40%) disease according to the staging system that was developed by the American Joint Committee on Cancer. CR was observed in 14 patients (93%), and the median follow-up was 26 months (13-42 months). The 3-year CFS, DFS, and OS were 86%, 86%, and 88%, respectively. Acute Grade 3 toxicities were observed as 6% of hematological, 26% of gastrointestinal, and 26% of dermatological. Conclusion: Early results confirm that IMRT or VMAT for anal cancer treatment reduces acute toxicities while maintaining high control rates

    The effect of phacoemulsification surgery on intraocular pressure and anterior segment anatomy of the patients with cataract and ocular hypertension

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    We evaluated the effect of phacoemulsification surgery on intraocular pressure (IOP), anterior chamber depth (ACD), iridocorneal angle (ICA), and central corneal thickness (CCT) of the patients with cataract and ocular hypertension. The decrease in IO P values of the 1 st week, 1 st month, 3 rd month, 6 th month, and 1 st year was statistically significant, but that of the 2 nd year was not significant. The increase in ACD and ICA values of the 1 st week, 1 st month, 3 rd month, 6 th month, and 1 st year was statistically significant, but that of the 2 nd year was not significant. The increase in CCT values of 1 st week and 1 st month was statistically significant, but those of 3 rd month, 6 th month, 1 st year, and 2 nd year were not significant. In conclusion, phacoemulsification surgery decreases IOP and increases ACD and ICA in the short-term. However, in the long-term it does not cause any significant changes

    Neoadjuvant chronomodulated capecitabine with radiotherapy in rectal cancer: a phase II brunch regimen study

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    The aim of this study was to evaluate efficacy and safety of chronomodulated capecitabine administered according to a specific time schedule (Brunch Regimen: Breakfast and Lunch) as a part of neoadjuvant chemoradiation therapy in patients with locally advanced rectal cancer

    Surface-Modified Bacterial Nanofibrillar Phb Scaffolds for Bladder Tissue Repair

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    The aim of the study is in vitro investigation of the feasibility of surface-modified bacterial nanofibrous poly [(R)-3-hydroxybutyrate] (PHB) graft for bladder reconstruction. In this study, the surface of electrospun bacterial PHB was modified with PEG- or EDA via radio frequency glow discharge method. After plasma modification, contact angle of EDA-modified PHB scaffolds decreased from 110 +/- 1.50 to 23 +/- 0.5 degree. Interestingly, less calcium oxalate stone deposition was observed on modified PHB scaffolds compared to that of non-modified group. Results of this study show that surface-modified scaffolds not only inhibited calcium oxalate growth but also enhanced the uroepithelial cell viability and proliferation.Wo
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