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4,785 result(s) for "Simsek, S"
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Vitamin D and metabolic disturbances in polycystic ovary syndrome (PCOS): A cross-sectional study
To compare vitamin D status in women with PCOS versus fertile women and subsequently evaluate the association between vitamin D status and metabolic disturbances in PCOS women. We conducted a cross-sectional comparison study of 639 women with PCOS and 449 fertile women. Serum 25-hydroxyvitamin D (25(OH)D) was stratified into a severe deficient (< 25 nmol/l), insufficient (25-50 nmol/l), moderate (50-75 nmol/l) and adequate (> 75 nmol/l) status. The main outcome measures were the difference in vitamin D status between PCOS and fertile women, and the association between serum 25(OH)D and metabolic disturbances in PCOS women only. Serum 25(OH)D was significantly lower in PCOS women compared to fertile controls (mean 25(OH)D of 49.0 nmol/l versus 64.5 nmol/l). An adjusted significant difference was seen between serum 25(OH)D and homeostasis model assessment (HOMA-IR) (β = 0.76; 95% CI: 0.63-0.91; p < 0.01), HDL-cholesterol (β = 0.20; 95% CI: 0.05-0.60, p < 0.01) and apolipoprotein A1 (β = 26.2; 95% CI: 7.5-45.0, p < 0.01) between the highest vitamin D group compared to the lowest vitamin D group. This study demonstrates that women with PCOS have a significantly lower serum 25(OH)D compared to fertile controls. A compromised vitamin D status in PCOS women is associated with a higher HOMA-IR and an unfavourable lipid profile. Large randomized controlled trials are necessary to explore the causality of this linkage.
A calibrated ensemble framework for multi-class defect evaluation in ceramic sanitaryware manufacturing
Reliable defect evaluation is essential in ceramic sanitaryware manufacturing, where inspection outcomes directly influence rework decisions, process control, and delivery performance. In practice, defect assessment is often affected by operational variability, class imbalance, and human-dependent inspection procedures, which limit the repeatability and consistency of quality control decisions. This study formulates multi-class defect classification as a practical quality control problem and investigates the robustness of production-databased decision-support in an industrial environment. The analysis is based on a real-world dataset comprising 11,071 production records collected under routine operating conditions. Defect labels were assigned through a two-stage quality control procedure involving trained inspectors and supervisory verification. Multinomial logistic regression, support vector machines with radial basis function kernels, and CatBoost were evaluated as base classifiers. A probability-based voting ensemble was developed to integrate the complementary decision structures, and posterior probabilities were calibrated using Platt scaling prior to aggregation to improve decision consistency. Experimental results show that the proposed calibrated ensemble improves Macro-F1 from 0.7126 (logistic regression) to 0.7211 and enhances minorityclass recall, leading to more balanced performance under severe class imbalance. The findings indicate that probability calibration and ensemble integration contribute to improved stability and interpretability of defect evaluation. Overall, the proposed framework provides a practically deployable decisionsupport layer that supports more consistent rework decisions and more reliable quality control in industrial production settings.
Lipoic Acid Can Maintain Stimulation of the Antioxidant System at Lower Reactive Oxygen Species, Ascorbate and Glutathione Levels in Osmotic Stressed Maize
Lipoic acid (LA), a unique antioxidant compound, can stimulate the antioxidant defense system in plants subjected to abiotic stresses. We aimed to determine the role of LA in induction of the antioxidant system at lower reactive oxygen species (ROS), ascorbate (ASC) and glutathione (GSH) levels in osmotic-stressed maize ( Zea mays L.). For this purpose, ROS, GSH and ASC contents were decreased using N,N'‑dimethylthiourea (DMTU), L-buthionine sulfoximine (BSO) and acriflavine (AF), respectively. Pots containing 21-day-old seedlings were divided into nine groups consisting of a non-stressed group; polyethylene glycol 6000 (PEG)-induced osmotic stress (PEG) group, LA, DMTU, BSO and AF treatment groups; and DMTU, BSO, and AF-combined LA treatment groups under osmotic stress. ROS contents and membrane damage after the DMTU, BSO, and AF-combined LA treatments were lower than those after the DMTU, BSO, and AF treatments, respectively. Moreover, the LA treatments in combination with DMTU, BSO and AF increased dry weight, activities of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, monodehydroascorbate reductase and dehydroascorbate reductase), and contents of GSH, ASC, and LA compared to the DMTU, BSO and AF treatments. Additionally, the relative expression levels of SUPEROXIDE DISMUTASE , CATALASE1 and ASCORBATE PEROXIDASE1 genes were consistent with the findings for their related antioxidant enzyme activities. These results indicated that LA could adjust ROS level and maintain stimulation of the antioxidant system at lower ROS, GSH, and ASC levels in osmotic stressed maize. Furthermore, LA may play a signaling role and assume the function of ASC and GSH in maize under PEG-induced osmotic stress.
African medicinal plants with anthelmintic properties against selected zoonotic helminths: a scoping review
Zoonotic helminth infections remain a persistent public health challenge across Africa, causing considerable morbidity and economic losses in both humans and livestock. The emergence of anthelmintic resistance and limited access to conventional treatments have intensified interest in alternative therapeutic approaches. Medicinal plants, long used in traditional medicine, represent a promising source of bioactive compounds with potential anthelmintic activity. This scoping review examined the diversity, efficacy, and ethnopharmacological relevance of African medicinal plants traditionally used to treat helminthiasis, with a specific focus on , , and . Following PRISMA guidelines, a systematic search of electronic databases identified 78 studies published between 2005 and May 2025, comprising 31 ethnobotanical surveys and 47 pharmacological investigations. Most studies focused on (n=19), followed by and (14 each). Ethnobotanical surveys reported 207 plant species from 54 families, while 57 species were evaluated pharmacologically. The most frequently studied families were Lamiaceae, Moringaceae, Euphorbiaceae, and Apocynaceae. Most studies relied on crude extracts, with few isolating or characterizing bioactive compounds. No clinical trials were reported, and methodological heterogeneity limited cross study comparability. Despite these limitations, several plant species demonstrated promising anthelmintic activity. This review highlights the underrepresented African contribution to ethnopharmacology and proposes future research directions, including bioassay-guided isolation, mechanistic studies, validation, and clinical evaluation. Integrating plant-based investigations within One Health strategies may provide affordable, accessible, and sustainable solutions for communities most affected by zoonotic helminths.
Molecular evidence of Macracanthorhynchus hirudinaceus (Pallas, 1781) in cockchafers in rural areas of Elazig, Türkiye
The primary definitive host of the giant acanthocephalan, also known as the giant thorny-headed worm Macracanthorhynchus hirudinaceus (Pallas, 1781), is Sus scrofa. The definitive host ingests the parasite by consuming infected scarabaeoid or hydrophilid beetles. This study aimed to ascertain the presence of M. hirudinaceus in the intermediate hosts through molecular analysis. The cockchafers were collected from Elazig province of Türkiye. A total of 30 pools, comprising 10 pools for each of three districts were obtained from cockchafers collected from 10 areas. The gDNA was isolated and PCR was conducted using specific primers which amplify the mitochondrial cytochrome c oxidase subunit 1 (mt-CO1) gene of M. hirudinaceus. Then, the PCR-positive samples were sequenced, and phylogenetic and haplotype analyses were performed. A total of 300 cockchafer adults and/or larvae were collected for this study from different regions of three districts (Sivrice, Baskil, and Keban) in Elazig province of Türkiye. No PCR band was observed in any of the samples in Sivrice (0%). However, a total of 16 samples (5.3%), 10 from the Baskil (10%) and 6 from Keban (6%), showed a PCR band of 491 bp. All sequences were confirmed as M. hirudinaceus. Two distinct haplotypes were detected at two points. Of the total number of sequences, twelve were found to consist of a single haplotype. One of the two haplotypes was comprised of 10 isolates, while the other included six isolates. This study is one of the limited studies on the molecular identification and haplotyping of M. hirudinaceus in cockchafers.
Frail patients who fall and their risk on major bleeding and intracranial haemorrhage. Outcomes from the Fall and Syncope Registry
Background Major bleeding, and intracranial bleeding specifically, are severe complications related to the use of anticoagulation. To what extent the risk for major bleeding is elevated among frail older people is not well known because they are underrepresented in the randomized clinical trials (RCTs). This study investigates the risk for major bleeding (MB) and intra cranial haemorrhage (ICH) in frail older people who fall. Methods All patients 65 years and older visiting the Fall and Syncope Clinic, between November 2011 and January 2020, and underwent a MRI of the brain were eligible. Frailty was assessed with a Frailty Index, based on the accumulation of deficits model. Cerebral small vessel disease was described and evaluated as proposed in the position paper of Wardlaw and colleagues in 2013. Results 479 patients were included in this analysis. Mean follow-up was 7 years per patient (ranging from 1 month to 8 years and 5 months). 368 patients (77%) were frail. A total of 81 patients used oral anticoagulation (OAC). 17 extracranial MB of which 3 were traumatic and 14 gastrointestinal, and 16 ICH occurred. There was a total of 603.4 treatment years with OAC, and 8 MBs occurred among patients on OAC (bleeding rate 1.32 per 100 treatment years), of which 2 ICHs (bleeding rate 0.33 per 100 treatment years). The risk for extracranial MB was increased by the use of antiplatelet agents (APA) (adjusted OR 6.9, CI 95% 1.2–38.3), and by the use of OAC (adjusted OR 9.8, CI 95% 1.7–56.1). The risk for ICH was only heightened by white matter hyperintensities (WMH) (adjusted OR 3.8, CI 95% 1.0-13.4). The use of APA (adjusted OR 0.9, CI 95% 0.3–3.3) or OAC (adjusted OR 0.6, CI 95% 0.1–3.3) did not elevate the risk for ICH. Conclusion In contrast to common belief, frail patients on OAC with repeated falls show a comparable bleeding rate as in the large RCTs, and the use of OAC did not increase the risk for ICH. However, the number of MBs was low, and of ICHs very low, despite extensive follow-up in this registry.
Genetic, haplotype and phylogenetic analysis of Ligula intestinalis by using mt-CO1 gene marker: ecological implications, climate change and eco-genetic diversity
Abstract Ligula intestinalis is a cestode parasite that affects freshwater fish in different countries of the world. The current study aims to reveal the phylogenetic, genetic and haplotype diversity of mt-CO1 gene sequences sent to the NCBI database from different countries by using in-silico analysis. The 105 mt-CO1 (371 bp) gene sequences of L. intestinalis obtained from NCBI were used for bioinformatics analyses. Sequences were subjected to phylogenetic and haplotype analysis. As a result of the haplotype analysis of L. intestinalis, 38 haplotypes were obtained from 13 different countries. Hap24 constituted 44.76% of the obtained haplotype network. Changes in nucleotides between haplotypes occurred at 1-84 different points. China and Turkey have highest fixation index (Fst) values of 0.59761, while the lowest (-0.10526) was found between Russia and Turkey. This study provides a baseline for future studies on extensive scale on the epidemiology, ecological aspects, distribution pattern, transmission dynamics and population dispersion of L. intestinalis worldwide. Resumo Ligula intestinalis é um parasita cestódeo que acomete peixes de água doce em diversos países do mundo. O presente estudo visa revelar a diversidade filogenética, genética e de haplótipos das sequências do gene mt-CO1 enviadas ao banco de dados do NCBI de diferentes países, por meio de análise in-silico. As sequências gênicas de 105 mt-CO1 (371 pb) de L. intestinalis obtidas do NCBI foram utilizadas para análises bioinformáticas. As sequências foram submetidas a análise filogenética e de haplótipos. Como resultado da análise de haplótipos de L. intestinalis, 38 haplótipos foram obtidos de 13 países diferentes. Hap24 constituiu 44,76% da rede de haplótipos obtida. Mudanças nos nucleotídeos entre os haplótipos ocorreram em 1-84 pontos diferentes. A China e a Turquia apresentam os maiores valores do índice de fixação (Fst), 0,59761, enquanto o menor (-0,10526) foi encontrado entre a Rússia e a Turquia. Este estudo fornece uma linha de base para futuros estudos em larga escala sobre epidemiologia, aspectos ecológicos, padrão de distribuição, dinâmica de transmissão e dispersão populacional de L. intestinalis em todo o mundo.
Dissection of Genetic Factors underlying Wheat Kernel Shape and Size in an Elite × Nonadapted Cross using a High Density SNP Linkage Map
Wheat kernel shape and size has been under selection since early domestication. Kernel morphology is a major consideration in wheat breeding, as it impacts grain yield and quality. A population of 160 recombinant inbred lines (RIL), developed using an elite (ND 705) and a nonadapted genotype (PI 414566), was extensively phenotyped in replicated field trials and genotyped using Infinium iSelect 90K assay to gain insight into the genetic architecture of kernel shape and size. A high density genetic map consisting of 10,172 single nucleotide polymorphism (SNP) markers, with an average marker density of 0.39 cM/marker, identified a total of 29 genomic regions associated with six grain shape and size traits; ∼80% of these regions were associated with multiple traits. The analyses showed that kernel length (KL) and width (KW) are genetically independent, while a large number (∼59%) of the quantitative trait loci (QTL) for kernel shape traits were in common with genomic regions associated with kernel size traits. The most significant QTL was identified on chromosome 4B, and could be an ortholog of major rice grain size and shape gene GS3 or qGL3. Major and stable loci also were identified on the homeologous regions of Group 5 chromosomes, and in the regions of TaGW2 (6A) and TaGASR7 (7A) genes. Both parental genotypes contributed equivalent positive QTL alleles, suggesting that the nonadapted germplasm has a great potential for enhancing the gene pool for grain shape and size. This study provides new knowledge on the genetic dissection of kernel morphology, with a much higher resolution, which may aid further improvement in wheat yield and quality using genomic tools.
In-silico analysis of mt-CO1 gene of Taenia hydatigena sheep isolates
is a tapeworm that affects herbivores in different regions of the world. (larvae of ), is prevalent in ruminants and pigs. In the current study, phylogenetic analysis of the published mt-CO1 gene of sheep isolates was analyzed using in-silico method and vertical and horizontal transmission at the global level by using a meta-analysis approach. A total of 82 mt-CO1 nucleotide sequences (339 bp) of sheep isolates from the NCBI database (Italy -Sardinia-, Iran, Palestine, Iraq, Finland, India and China) were used to investigate haplotype and genetic relationships. Tajima’s D (-2,2984) value was negative for the mt-CO1 sequences signifying the population expansion and/or purifying selection. The highly negative Fu’s Fs (-60,528) values determined for the sequences reflecting the existence of uncommon haplotypes. The mt-CO1 of haplotype network had 47 haplotypes arranged within a star-like configuration with a main haplotype, which encompassed 25.6 % of the total isolates. In the mt-CO1 haplotype network analyzed, there were 80.5 % unique single haplotype and highest ratio was observed in from sheep originating from Iran, followed by Sardinia, Palestine and Finland. If the current condition continues, genetic differences in will be able to rise, and possible new strains and/or genotypes that may influence the host adaptation and life cycle of the parasite may emerge.
Demographics of cystic echinococcosis patients treated surgically in Lahore, Pakistan: A single centre study from 2007 – 2018
Cystic echinococcosis (CE) is a zoonotic disease caused by the larval stage of tapeworms. These parasites have a worldwide geographic distribution and pose a serious threat to livestock industry as well as human health in the endemic areas. CE is widely distributed in Pakistan. However, very few reports are available related to the regional transmission of . A retrospective analysis was conducted of surgically confirmed CE patients who were treated at Shoukat Khanum Memorial Cancer Hospital and Research Centre in Lahore, Punjab Province, Pakistan from 2007 – 2018. In total, 536 CE patients were evaluated during the study period. Cases originated from the provinces of Khyber Pakhtunkhwa (n=336), Punjab (n=147), Baluchistan (n=18), Sindh (n=3), Islamabad (n=2), Gilgit Baltistan (n=1), and Azad Jammu and Kashmir (n=1). An additional 28 cases were from Afghanistan. The highest number of CE cases was reported in 2013 (n=90). Females made up a larger proportion of cases (n=310; 57.8 %) than males (n=226; 42.2 %). Most patients were members of the Pashtun (n=197; 36.7 %), Hindku (n=142; 26.5 %), and Punjabi (n=118; 22.0 %) ethnic groups. The largest number of cysts was obtained from the liver (137/536; 25.6 %). This study showed that CE is likely present throughout Pakistan. In order to control the disease, a comprehensive control program and regional surveillance are needed.