PubMed İndeksli Yayınlar Koleksiyonu

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Bibliometric Analysis of Neurocysticercosis Case Reports and Evaluation of Presented Cases
(Academic Press Ltd- Elsevier Science Ltd, 2025) Gurbuz, Esra; Aydemir, Selahattin; Barlik, Fethi; Saygin, Murat; Yildiz, Rahmi; Alkan, Sevil; Ekici, Abdurrahman
Neurocysticercosis (NCC) has been classified as a neglected tropical disease by the World Health Organization (WHO), with the condition being regarded as the most significant parasitic disease affecting the nervous system. Hence, the aim of this study was to conduct a review of previously published case reports on this topic in order to ascertain whether there is an increasing trend of NCC worldwide and evaluate the cases that have been presented. After a comprehensive search of the Web of Science Core Collection using the keywords "neurocysticercosis" and "case reports", studies were selected by applying inclusion criteria. Important data attributes that were extracted in plain text format included the document titles, publication years, journal names, author(s) name(s), keywords, institutions, and countries. In addition, to evaluate the cases, the age and gender of the patients, complaints on admission, localization of the cyst, and treatment procedure used were recorded in an Excel file. The bibliometric analysis was conducted using Biblioshiny. Additionally, GraphPad and Excel were employed for the creation of graphical representations. The dataset analyzed included 297 documents, 162 from various sources, with an average age of 12.2 years and 6.3 citations per document. The number of case reports tended to increase over the years. India and the USA were the leading contributors to NCC case reports, with 78 (26.3 %) and 64 (21.5 %), respectively. This was followed by Brazil, France, and Spain with 31 (10.4 %), 14 (4.7 %) and 13 (4.4 %) case reports, respectively. Moreover 55.5 % of the patients in the cases presented in the articles were male and 12.9 % were in the 21-25 age group. In regard to the cysts, 81.2 % were located in the brain and 15.1 % were in the spine. The most common complaints were headache and seizures in brain localized NCC cases and back pain and numbness or weakness in extremities in spine localized NCC cases. Albendazole was used in 174 (54.5 %) cases, praziquantel in 22 (6.9 %) cases, and ivermectin in five (1.6 %) cases. In conclusion, NCC continues to be an increasingly serious public health problem in India as well as developed countries such as the USA and European countries. NCC can be seen in all age groups, males are more susceptible than females, cysts are more localized in the ventricular system, and albendazole and/or paraziquentel are used in treatment. In addition, more comprehensive studies on the use of ivermectin in the treatment of NCC should be conducted, as success was achieved in cases where ivermectin was used in treatment.
Detection of Blastocystis Sp. in Ulcerative Colitis, Crohn?s and Chronic Diarrheal Patients by Microscopy, Culture and Real-Time Polymerase Chain Reaction
(Academic Press Ltd- Elsevier Science Ltd, 2023) Beyhan, Yunus Emre; Guven, Irem; Aydin, Mesut
Blastocystis sp. is a zoonotic parasite that is common in humans and animals and settles in the large intestine. The parasite can cause various gastrointestinal system complaints such as indigestion, diarrhea, abdominal pain, bloating, nausea and vomiting. The aim of this study is to determine the distribution of Blastocystis in patients diagnosed with ulcerative colitis, Crohn's and diarrhea from the gastroenterology outpatient clinic and to compare the diagnostic value of the most preferred methods. A total of 100 patients, 47 men and 53 women, were included in the study. Of the cases, 61 had diarrhea, 35 had ulcerative colitis (UC) and four had Crohn's disease. Stool samples of the patients were analyzed by as direct microscopic examination (DM), culture and realtime polymerase chain reaction (qPCR). A total of 42% positivity was detected, 29% positivity in DM and trichrome staining, 28% in culture and 41% in qPCR. 40.4% (20/47) of men and 37.7% (22/53) of women were found to be infected. Blastocystis sp. was found in 75% of Crohn's, 42.6% of diarrheal and 37.1% of UC patients. Diarrhea cases are more common with UC and there is a close relationship between Crohn's and Blastocystis positivity. While DM and trichrome staining showed a sensitivity of 69%, PCR test was found to be the most sensitive diagnostic method with approximately 98%. Diarrhea and UC are often seen together. A close relationship was detected between Crohn's disease and Blastocystis. High prevalence of Blastocystis in cases with clinical symptoms reveals the importance of the parasite. There is a need for studies on the pathogenicity of Blastocystis sp. in various gastrointestinal cases, and it is thought that molecular techniques should be used since PCR is seen to be a much more sensitive.
Effect of Leukemia Inhibitory Factor in Experimental Cisplatin Neuropathy in Mice
(Academic Press Ltd- Elsevier Science Ltd, 2005) Öztürk, G; Erdogan, E; Anlar, Ö; Kösem, M; Taspinar, M
In this study, the effect of leukemia inhibitory factor (LIF) on cisplatin (CDDP)-induced neuropathy was evaluated. Mice were treated with CDDP, 2 mg/kg i.p. twice a week nine times. During the last week some of the mice were also injected with LIF, 2 mug/kg s.c. every other day for a total of four injections. Development of neuropathy was evaluated with changes in tail flick latency and sensory nerve conduction velocity (NCV). At the end of the treatment period dorsal root ganglia (DRG) were microscopically examined. Some of the DRGs were explanted into extracellular matrix, covered with culture medium and incubated for 3 days. During and at the end of the incubation, cellular migration and axonal outgrowth from the DRGs were quantified. LIF proved effective in reversing the increase in tail flick latency (p < 0.05) and improving the reduction in NCV induced by CDDP. CDDP led to smaller nuclear and somatic size in neurons, while with LIF, the latter was restored to control values (p<0.01). No apoptotic nucleus was observed among DRG neurons while very few and moderate numbers detected among satellite and Schwann cells, respectively. With LIF, none of the cells had apoptosis. CDDP caused a decrease in the number of migrating cells and in the length of outgrowing axons while LIF treatment restored both capacities (p < 0.05) In conclusion, in CDDP-induced neuropathy, LIF was found to be effective in correcting some functional and morphological deteriorations related with major involvement of Schwann cells. (C) 2004 Elsevier Ltd. All rights reserved.
The Effects of Light Sources With Different Spectral Structures on Ocular Axial Length in Rainbow Trout (Oncorhynchus Mykiss)
(Academic Press Ltd- Elsevier Science Ltd, 2016) Timucin, Ozgur Bulent; Arabaci, Muhammed; Cuce, Ferhat; Karatas, Boran; Onalan, Sukru; Yasar, Muhterem; Karadag, M. Fatih
Every day, we are acquiring more and more clues regarding the effects of different spectral structures (SS) of light on ocular axial length (OAL). As a step towards understanding this association, this study sought to characterise the effects of light sources of different SS on OAL in fish through comparisons with indoor daylight. The experimental design was completely randomised with 4 treatments and 2 replications. Three hundred and fifty two rainbow trout (Oncorhynchus mykiss) were housed in 8 tanks and fed for 71 days. Differences in the mean values of ocular elongation were determined at the end of the experiment. The daylight group was exposed to indoor daylight in the hatchery environment, the red group was exposed to long wavelength light (600-650 nm), the green group was exposed to mid wavelength light (495-570 nm) and the blue group was exposed to short wavelength light (420-495 nm). The values of the OALs in fish grown under the same light intensity, but with light of different spectral characteristics, demonstrated significant differences (p < 0.05). The mean OAL in the daylight group was determined as 3.64 +/- 0.40 mm, as 3.70 +/- 0.35 mm in the red group, as 3.53 +/- 0.34 mm in the green group and as 3.42 +/- 0.29 mm in the blue group. The mean OAL in the blue group was significantly shorter compared to the red (p = 0.003) and the daylight groups (p = 0.02). When compared with the long wavelength light and indoor daylight, the effect of short wavelength light on OAL in fish was observed to be negative. Exposure to light with modified SS of in indoor environments may be effective in stopping ocular elongation. (C) 2016 Elsevier Ltd. All rights reserved.
The Effects of Light Sources With Different Spectral Structures on Ocular Axial Length in Rainbow Trout (Oncorhynchus Mykiss)
(Academic Press Ltd- Elsevier Science Ltd, 2023) Timucin, Ozgur Bulent; Arabaci, Muhammed; Cuce, Ferhat; Karatas, Boran; Onalan, Sukru; Yasar, Muhterem; Karadag, M. Fatih
Enhancing the Content of Phycoerythrin Through the Application of Microplastics From Porphyridium Cruentum Produced in Wastewater Using Machine Learning Methods
(Academic Press Ltd- Elsevier Science Ltd, 2024) Onay, Aytun; Onay, Melih
Microalgae can produce secondary metabolites like phycoerythrin (Phy). The effects of some microplastics (MPs), wastewater (WW), and light intensity (LI) parameters, including complex data sets, on Phy concentration from Porphyridium cruentum were investigated using machine learning methods in this study. Also, the deep learning (DL) model was developed to get the maximum phy concentration from the dataset. The dataset (232 data groups), including a feature set, polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), WW, LI, and an output variable, Phy, were randomly divided into training and test sets to create and evaluate the models. The highest experimental and predicted Phy concentrations were 52.3 mg/g and 58.32 mg/ g in a scenario with 15% WW, 80 mg/L PE, PP, PS, and PVC, and a LI of 175 mu molm- 2 s-1, respectively. The Pearson correlation coefficient (r) indicates a positive correlation between Phy and the variables PE (r = 0.35), PVC (r = 0.69), PP (r = 0.27), PS (r = 0.29), and LI (r = 0.22). However, variables such as WW (r = -0.05) have a weak correlation, and while PVC and PE showed the most significant effect on Phy concentration, WW had the lowest effect. Furthermore, LIME (local interpretable model-agnostic explanations) and SHAP (shapley additive explanations) provided us with important results for interpreting the random forest regression (RF) and DL models' predictions, respectively. The LIME and SHAP analyses suggest that the system with more PVC has a higher predicted Phy value. For WW, the reverse is true; higher WW values result in lower Phy predictions. Researchers were given the model explainability decision tree (DT) structure to study reactants' effects on output (Phy). In conclusion, the dye industry can use microalgae to treat WW contaminated with MPs while also producing high amounts of Phy using a DL model.
Fast Removal of High Quantities of Toxic Arsenate Via Cationic P(Aptmacl) Microgels
(Academic Press Ltd- Elsevier Science Ltd, 2016) Rehman, Saif Ur; Siddiq, Mohammed; Al-Lohedan, Hamad; Aktas, Nahit; Sahiner, Mehtap; Demirci, Sahin; Sahiner, Nurettin
Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. The cationic poly(3-acrylamidopropyl)trimethylammonium chloride (p(APTMACl)) microgels were synthesized by photo-initiated inverse suspension polymerization technique. These microgels were utilized as absorbents for the removal of toxic arsenate (As) from different aqueous environments. The experimental parameters affecting absorption efficiency were investigated, and it was demonstrated that these types of microgels are highly efficient in removing arsenate anions from different aqueous environments compared to the previously reported bulk hydrogel, and cryogel of the same material. A removal efficiency of approximately 97.25% was obtained by immersing 0.5 g microgel in 250 ppm 100 mL solution of arsenate anions for 60 min. Both Langmuir and Freundlich adsorption isotherms were applied to adsorption of arsenate anions by p(APTMACl) microgels, and the Langmuir isotherm was a better representation of the adsorption of arsenate with a high value of R-2 (0.9982). Furthermore, mag-p(APTMACl) microgels were synthesized for the adsorption of arsenate anions to provide easy removal of the microgel composite by using an externally applied magnetic field. Furthermore, re-usability of the p(APTMACl) microgels was also investigated for the adsorption of arsenate anions. CD 2015 Elsevier Ltd. All rights reserved.
Investigation of 8-Ohdg, Cyp1a, Hsp70 and Transcriptional Analyses of Antioxidant Defence System in Liver Tissues of Rainbow Trout Exposed To Eprinomectin
(Academic Press Ltd- Elsevier Science Ltd, 2017) Alak, Gonca; Yeltekin, Ash Cilingir; Tas, Ismail Hakki; Ucar, Arzu; Parlak, Veysel; Topal, Ahmet; Atamanalp, Muhammed
Eprinomectin (EPM), a member of avermectin family, is a semi-synthetic antibiotic. It has been known that avermectin family enters the aquatic environments and adversely affects the aquatic organisms. Effects of EPM is fully unknown in aquatic organisms especially fish, thus the aim of the present study was to investigate transcriptional changes (sod, cat, gpx) and activities of some antioxidant enzymes (superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) and malondialdehyde (MDA) levels, oxidative DNA damage (8-hydroxy-2-deoxyguanosine (8-OHdG)) and transcriptional changes of heat shock protein 70 (HSP70), and cytochromes P4501A (CYP1A) in liver tissues of rainbow trout exposed to sublethal EPM concentration (0.001 mu g/L, 0.002 mu g/L, 0.01 mu gL, 0.05 mu g/L) for 24 h, 48 h, 72 h and 96 h. The decrease in antioxidant enzyme (SOD, CAT and GPx) activity, transcriptional changes (sod, cat, gpx, HSP70 and CYP1A genes) and increase in MDA level and activity of 8-OHdG in a dose-time-dependent manner in the liver of rainbow trout were observed. The down-regulated of antioxidant (sod, cat and gpx), HSP70 and CYP1A obviously, the severity of which increased with the concentration of EPM and exposure time. The results imply that EPM could induce oxidative damage to the liver tissue of rainbow trout. The information presented in this study is helpful to understand the mechanism of veterinary pharmaceuticals-induced oxidative stress in fishes. (C) 2017 Elsevier Ltd. All rights reserved.
Investigation of 8-Ohdg, Cyp1a, Hsp70 and Transcriptional Analyses of Antioxidant Defence System in Liver Tissues of Rainbow Trout Exposed To Eprinomectin (Vol 65, Pg 136, 2017)
(Academic Press Ltd- Elsevier Science Ltd, 2018) Alak, Gonca; Yeltekin, Asli Cilingir; Tas, Ismail Hakki; Ucar, Arzu; Parlak, Veysel; Topal, Ahmet; Atamanalp, Muhammed
Maldi-Tof Ms Identification and Antibiotic Resistance of Escherichia Coli Isolated From Playground
(Academic Press Ltd- Elsevier Science Ltd, 2021) Caliskan, Dilara; Bakkaloglu, Zekiye; Cevik, Yasemin Numanoglu; Yildiz, Serap Suzuk; Kaskatepe, Banu
In this study, it was aimed to determine the antibiotic resistance of Escherichia coli strains isolated from samples taken from various children's parks of Ankara and to confirm the resistance by molecular methods. Five hundred fifty-four samples, including soil samples from 140 different parks and 414 swab samples from slides, swings, ferris wheels, seesaws, and other toys from 176 different parks, were taken. Fourty E. coli strains isolated from these samples were included in the study. Antibiotic susceptibility tests of 40 E. coli isolates were performed by EUCAST recommendations. The resistance rates of E. coli isolates were found as ciprofloxacin 5%, ampicillin 17%, trimethoprim/sulfamethoxazole 15%, streptomycin 12.5%, tobramycin 5%, gentamicin 5%, cefotaxime 2.5%, and ceftazidime 2.5%. Intermediate rates were found as 95%, 90%, and 70% for tobramycin, gentamicin, and streptomycin respectively. blaCTX-M beta-lactamase gene was investigated for an isolate determined to be resistant to both cefotaxime and ceftazidime but blaCTXM gene could not be detected. Aminoglycoside resistance of strains has been investigated because of high intermediate sensitivity rates. For this purpose, aac(6 ')-Ib, aac(3 ')-IIa, aph(3 ')-VI, ant(3 ')-I, aac (3 ')-IV, ant(2 ')-Ia genes scanned, and were detected 97.5% of our isolates ant (3 ')-I, %25 aac(6 ')-Ib', 5% aac(3 ')IIa, 2.5% ant(2 ')-Ia. Also, aph(3 ')-VI, and aac(3 ')-IV genes could not be detected in any of the isolates. Consequently, it has been revealed that resistant E. coli strains isolated from children's parks can pose a potential risk in public health for transmission of resistant genes.
P(4-Vinyl Pyridine) Hydrogel Use for the Removal of Uo22+ and Th4+ From Aqueous Environments
(Academic Press Ltd- Elsevier Science Ltd, 2011) Ozay, Ozgur; Ekici, Sema; Aktas, Nahit; Sahiner, Nurettin
4-vinyl pyridine (4-VP) based hydrogels with 2-hydroxyethylmetacrylate (HEMA) and magnetic composites were prepared and tested for use in the removal of UO22+. and Th4+ ions from aqueous environments. It was found that the absorption of these metal ions from aqueous environments decreased with an increase in the amount of HEMA contained within p(4-VP-co-HEMA) hydrogels between 0.498 mmol for pure p(4-VP) and 0.027 mmol for pure p(HEMA). The characterization of the hydrogels was determined by swelling experiments, FT-IR and thermal analysis. The effects of initial metal ion concentration, hydrogel amount and the temperature of the medium on absorption of the ions were investigated. Langmuir and Freundlich isotherms were constructed for the absorption of UO22+ and Th4+. Both isotherms demonstrated that these metal ions complied with monolayer absorption kinetics. (C) 2011 Elsevier Ltd. All rights reserved.
Prevalence of Blastocystis Infection in Humans in Turkiye: a Systematic Review and Meta-Analysis
(Academic Press Ltd- Elsevier Science Ltd, 2024) Aydemir, Selahattin; Barlik, Fethi; Yurekturk, Sehriban; Saygin, Murat; Unlu, Ahmet Hakan; Ekici, Abdurrahman; Yilmaz, Hasan
Although Blastocystis, a protozoan, is commonly found in all species of animals and in humans, there remains a lack of clear information about its epidemiology and routes of transmission. The aim of this meta-analysis study was to determine the changes in Blastocystis prevalence and subtype distribution in humans in T & uuml;rkiye according to geographical regions. Databases were searched using the Web of Science, PubMed, Scopus, EBSCO, and TRDizin to identify studies on the prevalence of Blastocystis in humans in T & uuml;rkiye published from 2009 to 2023. As a result of this systematic search, 117 of 730 articles were included in the meta-analysis. The pooled prevalence of human Blastocystis infection in T & uuml;rkiye was 13.08 %. The prevalence of the pool was higher in the Black Sea region, which is the most humid region in T & uuml;rkiye, than in other regions. Blastocystis subtypes were identified in a total of 885 positive samples. The most common subtypes (ST) in T & uuml;rkiye were ST3, ST1 and ST2, respectively. In addition to these ST4, ST5, ST6 and ST7 were also detected in humans in T & uuml;rkiye. In conclusion, the prevalence of Blastocystis in humans is high in T & uuml;rkiye, especially in the Black Sea region.
Productivity and Heavy Metal Pollution Management in a Silage Maize Field With Reduced Recycled Wastewater Applications With Different Irrigation Methods
(Academic Press Ltd- Elsevier Science Ltd, 2021) Cakmakci, Talip; Sahin, Ustun
Using wastewaters in irrigated agriculture can cause heavy metal accumulation as well as salinity in soil. A practical way of minimizing accumulation in soil is to use irrigation techniques that require less water and consequently introduce less heavy metals into the feeding chain in silage maize cultivation with wastewater irrigation. The objective of this study is to address this issue. A factorial field experiment was carried out for two years in a completely randomized design with three replicates. Experimental plots were irrigated with three different irrigation methods (subsurface and surface drip, and furrow) applying three different levels (full irrigation and 33 and 67% deficit irrigations) of recycled wastewater and freshwater. The results showed that soil heavy metal contents, salinity, macro nutrients, organic matter, cation exchange capacity, porosity and wet aggregate stability were significantly higher in full irrigation with wastewater, while pH, carbonates, bulk and particle densities were significantly lower. Drip methods reduced salinity and heavy metal contents significantly. Heavy metal pollution indexes also indicated that drip methods are more effective in reducing metal pollution in soil. However, considerable accumulations of Cd and Ni were found with all methods while deficit irrigation decreased accumulations. The highest cation exchange capacity and K2O contents and the lowest exchangeable sodium percentage were determined with the subsurface drip method. The subsurface drip method saved 20.7 and 49% more irrigation water than the surface drip and furrow methods under fully irrigated conditions. Therefore, it can be concluded that using the subsurface drip method with recycled wastewater can be used in silage maize cultivation because soil productivity and water savings increased while metal pollution and salinity in soil decreased. Moreover, using 33% less wastewater can be a useful practice to decrease Cd and Ni accumulation.
Removal of Arsenate and Dichromate Ions From Different Aqueous Media by Amine Based P(taea-Co Microgels
(Academic Press Ltd- Elsevier Science Ltd, 2017) Rehman, Saif Ur; Khan, Abdur Rahman; Sahiner, Mehtap; Sengel, Sultan B.; Aktas, Nahit; Siddiq, Muhammad; Sahiner, Nurettin
In this work, microgels based on tris(2-aminoethyl) amine (TAEA) and glycerol diglycidyl ether (GDE) via simple microemulsion polymerization was prepared as p(TAEA-co-GDE) microgels were used as adsorbent for removal of dichromate (Cr (VI)) and arsenate (As (V)) ions from different aqueous environments. The p(TAEA-co-GDE) microgels were demonstrated very efficient adsorption capacity for Cr (VI), and As (V) that are 164.98 mg/g, and 123.64 mg/g from distilled (DI) water, respectively. The effect of the medium pH on the adsorption capacity of p(TAEA-co-GDE) microgels for Cr (VI) and As (V) ions were investigated. The maximum adsorption capacity was obtained at pH 4.0 for both ions with maximum adsorbed amounts of 160.62, and 98.72 mg/g, respectively. In addition, the microgels were also shown moderate adsorption capacity for Cr (VI) and As (V) from other water sources; tap water with 115.18 mg/g and 82.86 mg/g, sea water with 64.24 mg/g and 46.88 mg/g and creek water with 73.52 mg/g and 59.33 mg/g, respectively. Moreover, the increase in adsorbent dose from 0.025 to 0.125 g enhanced % adsorption of Cr (VI) from 54.13 to 98.03, and As (V) from % 26.72-98.70, respectively. For the adsorption process Langmuir and Freundlich adsorption isotherms were applied and found that Langmuir adsorption isotherm with R-2 value of 0.99 for both the metal ions are suitable. Moreover, the experimental adsorption capacities of Cr (VI) and As (V) were found very close to the theoretical values calculated from Langmuir adsorption isotherm. More importantly, the microgels were made magnetic responsive to recover them easily from adsorption medium for reuse studies by applying external magnetic field with little decrease in adsorption capacity. Additionally, reusability of p(TAEA-co-GDE) microgels was also evaluated for adsorption of Cr (VI) and As (V) from DI water. (C) 2017 Elsevier Ltd. All rights reserved.
Removal of As(V), Cr(Iii) and Cr(Vi) From Aqueous Environments by Poly(acrylonitril-Co Ammonium Chloride)-Based Hydrogels
(Academic Press Ltd- Elsevier Science Ltd, 2015) Dudu, Tuba Ersen; Sahiner, Mehtap; Alpaslan, Duygu; Demirci, Sahin; Aktas, Nahit
Cationic poly(Acrylonitril-co-Acrylamidopropyl-trimethyl Ammonium Chloride) (p(AN-co-APTMACl)) hydrogels in bulk were synthesized by using acrylonitrile (AN) and 3-acrylamidopropyl-trimethyl ammonium chloride (APTMACl) as monomers. The prepared hydrogels were exposed to amidoximation reaction to replace hydrophobic nitrile groups with hydrophilic amidoxime groups that have metal ion binding ability. Those replacements were increased the hydrogels absorption capacity for As(V) and Cr(VI). Langmuir and Freundlich isotherms equations were utilized to obtain the best-fitted isotherm model for the absorption of the ions at different metal ion concentrations. The absorption data of As(V) ion were fitted well to Freundlich isotherm while those of Cr(VI) and Cr(III) ions were fitted well to Langmuir isotherm. The maximum absorption of poly(3-acrylamidopropyl-trimethyl ammonium chloride (p(APTMACl)) and amid-p(AN-co-APTMACl) macro gels were 22.39 mg and 21.83 mg for As(V), and 30.65 mg and 18.16 mg for Cr(VI) ion per unit gram dried gel, respectively. Kinetically, the absorption behaviors of Cr(III) and Cr(VI) ions were fitted well to a pseudo 2nd-order kinetic model and those of As(V) ions were fitted well to a pseudo 1st order kinetic model. (C) 2015 Published by Elsevier Ltd.

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