Publications by authors named "Demirel F"

Article Synopsis
  • Phosphoglycolate phosphatase (PGPase) is an important enzyme in photosynthetic organisms that helps process phosphoglycolate, a byproduct of Rubisco, potentially affecting the Calvin cycle.
  • Three PGPase genes were isolated, cloned, and overexpressed from a specific organism, and their expression was analyzed under varying ammonium levels.
  • The study found that all three genes produce active PGPases, with two of them being responsive to nitrogen levels and upregulated when ammonium is low, while PGPase presents mainly in three forms across higher plants and algae.
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Background: Genetic diversity is a prerequisite for breeding programs, and one of the main goals here is to obtain quality products. Therefore, this study aims to evaluate the genetic diversity in some hybrid individuals of honeyberry (Lonicera caerulea L.) based on fruit characteristics, leaf morphology, vitamin C, antioxidant activity, biochemical, and nutritional content.

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Background: One of the wild fruit species with a natural distribution in Türkiye, and historically used for medicinal purposes due to its rich composition, is Berberis crataegina DC. Various parts of the plant, including its roots, bark, leaves, flowers, and fruits, have been utilized in traditional medicine, while its fruits are also consumed in various forms as food. This study aimed to characterize the morphological, biochemical, and molecular traits of B.

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We studied a family with three male individuals across two generations affected by common variable immune deficiency (CVID). We identified a novel missense heterozygous variant (c.2602T>A:p.

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  • Chronic spontaneous urticaria (CSU) negatively impacts patients' quality of life, and omalizumab is recommended for cases resistant to antihistamines; the Urticaria Activity Score-7 (UAS-7) measures disease severity.* -
  • A study compared the long-term effectiveness and side effects of two doses (150 mg and 300 mg) of omalizumab in 108 CSU patients over 60 months, finding no significant differences in disease scores or adverse events between groups.* -
  • The research concluded that starting with a 150 mg dose is adequate for CSU treatment, with an option to increase to 300 mg if needed, offering a potentially safer and more
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is the most common gastrointestinal protist found in humans and animals. Although the clinical significance of remains unclear, the organism is increasingly being viewed as a commensal member of the gut microbiome. However, its impact on the microbiome is still being debated.

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Blastocystis sp. and Dientamoeba fragilis are intestinal protists, which are common worldwide, but the pathogenic role of these organisms in gastrointestinal diseases is still controversial. This study aimed to investigate the frequency of Blastocystis sp.

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The objective of this study was to comprehend the efficiency of wheat regeneration, callus induction, and DNA methylation through the application of mathematical frameworks and artificial intelligence (AI)-based models. This research aimed to explore the impact of treatments with AgNO and Ag-NPs on various parameters. The study specifically concentrated on analyzing RAPD profiles and modeling regeneration parameters.

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Numerous factors can impact the efficiency of callus formation and regeneration in wheat cultures through the introduction of exogenous polyamines (PAs). The present study aimed to investigate plant regeneration and DNA methylation patterns utilizing the inter-primer binding site (iPBS) retrotransposon and coupled restriction enzyme digestion-iPBS (CRED-iPBS) methods in wheat. This investigation involved the application of distinct types of PAs (Put: putrescine, Spd: spermidine, and Spm: spermine) at varying concentrations (0, 0.

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Intestinal parasitic infections are a global health problem that causes morbidity and mortality, especially in children living in rural areas. In this study, stool samples of pediatric patients with gastrointestinal complaints were examined by conventional and molecular methods to determine the prevalence of intestinal parasites. A total of 100 pediatric patients with gastrointestinal complaints and 50 healthy children were included in the study.

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Background: Venom immunotherapy (VIT) is an effective treatment in the patients at high risk of anaphylaxis or life-threatening systemic reactions due to Hymenoptera venom allergy. But, systemic and large local reactions can be observed, especially during the build-up phase of VIT. We evaluated the safety of conventional and ultra-rush build-up protocols.

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Objective: This study aimed to evaluate the distribution of intestinal parasites in refugee and native patients who applied to a territory hospital in Turkey.

Methods: A total of 17911 patients who were admitted to our hospital between January 2018 and January 2019 were evaluated retrospectively in terms of intestinal parasites. The patients' stool samples were investigated for the existence of intestinal parasites by direct wet mount preparation, formalin ether concentration technique and cellophane tape method.

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Epigenetic mechanisms control chromatin accessibility and gene expression to ensure proper cell fate specification. Histone proteins are integral chromatin components, and their modification promotes gene expression regulation. Specific proteins recognize modified histones such as the chromodomain protein MRG-1.

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Article Synopsis
  • Nasal irrigation may help improve symptoms in children with intermittent allergic rhinitis (AR) when combined with nasal corticosteroids (NC), focusing on the effects of hyaluronic acid (HA) and normal saline solution (NSS).
  • In a 28-day study involving 76 children, different groups received NC alone, NC plus NSS, or NC plus HA, with various nasal symptoms and quality of life measures taken before and after treatment.
  • Results showed no major differences in symptom scores or quality of life among the groups, but the HA group did show a significant decrease in nasal airflow resistance, suggesting HA may have some benefits worth exploring further.
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Optimization of hydrolysis conditions of lignocellulosic biomass is crucial to able to produce value-added products by fermentation. This study not only determines optimal dilute sulfuric acid (HSO) hydrolysis conditions of wheat bran (WB) and rye bran (RB) by using one-factor-at-a-time method and subsequently Box-Behnken design but also elucidates chemical composition of hydrolysates yielded under optimal hydrolysis conditions. Based on the results, optimal hydrolysis conditions of WB and RB were 121 and 130°C of temperature, 1/8 and 1/8 w/v of solid to liquid ratio, 2.

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Background: Obese asthma is a complex syndrome with certain phenotypes that differ in children and adults. There is no clear evidence regarding the presence of additive or synergistic pathological interaction between obesity and asthma in children.

Objectives: Our aim was to demonstrate the interaction of obesity and asthma in children in terms of airway and systemic inflammation by a controlled observational study.

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Background: The randomized DAPA trial (Defibrillator After Primary Angioplasty) aimed to evaluate the survival benefit of prophylactic implantable cardioverter defibrillator (ICD) implantation in early selected high-risk patients after primary percutaneous coronary intervention for ST-segment-elevation myocardial infarction.

Methods: A randomized, multicenter, controlled trial compared ICD versus conventional medical therapy in high-risk patients with primary percutaneous coronary intervention, based on one of the following factors: left ventricular ejection fraction <30% within 4 days after ST-segment-elevation myocardial infarction, primary ventricular fibrillation, Killip class ≥2 or TIMI (Thrombolysis in Myocardial Infarction) flow <3 after percutaneous coronary intervention. ICD was implanted 30 to 60 days after MI.

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Introduction: We aimed to evaluate the effects of 7-valent pneumococcal conjugate vaccine on nasopharyngeal carriage of Streptococcus pneumoniae and antibiotic resistance in children in a well-child clinic in a tertiary children's hospital in Turkey.

Methodology: We collected nasopharyngeal (NP) specimens from 557 two-month-old babies before vaccination. After the study population had received PCV7, NP samples were obtained from 135 babies.

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Drug reaction with eosinophilia and systemic symptoms (DRESS) is a rare but life-threatening multisystem adverse reaction to a medication, with vancomycin being one of the most common cause reported. We present the HLA analysis of a pediatric patient who developed DRESS related to vancomycin and compared the results with the available literature. With further data, the use of pretreatment HLA analysis to prevent vancomycin related DRESS may be a valuable option in the near future.

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Article Synopsis
  • * A total of 50 hulled wheat populations were collected from Kastamonu, Konya, and Kayseri, while 15 tir wheats were gathered from Kars, with findings revealing a higher protein content in hulled wheats compared to registered cultivars.
  • * Molecular analysis using fluorescent SSR markers identified significant genetic variation among the wheat populations and showed deviations from Hardy-Weinberg expectations, indicating substantial genetic diversity within landraces rather than within individual populations.
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Polygalacturonases (PGs), an important industrial enzyme group classified under depolymerases, catalyze the hydrolytic cleavage of the polygalacturonic acid chain through the introduction of water across the oxygen bridge. In order to produce and increase the concentration of this enzyme group in fermentation processes, a new approach called microparticle cultivation, a promising and remarkable method, has been used. The aim of this study was to increase the PG activity of using aluminum oxide (AlO) as microparticles in shake flask fermentation medium.

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Background: Endocrine organs are highly susceptible to effects of high-dose chemotherapy. The objective of the study was to evaluate endocrine and metabolic complications after hematopoietic stem cell transplantation (HSCT) in children.

Methods: The patients who underwent HSCT in our center from April 2010 to October 2014 with at least 1 year follow-up were analyzed retrospectively.

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Background/aim: In this study, we aimed to assess the clinical and immunological findings of our patients with common variable immunodeficiency (CVID).

Materials And Methods: We analyzed the records of 31 adult patients with CVID (12 females, 19 males). The patients were classified into clinical and immunophenotypic subgroups for statistical comparisons.

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HSCT is a curative treatment in TM, but conditioning and immunosuppressive treatment may affect bone metabolism. In this retrospective study, we aimed to compare BMD, vitamin D status, and growth in children with TM who underwent HSCT to those in children with TD TM. Twenty-three children with TM who underwent HSCT (mean age 7.

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Background: Dyslipidemia increases the frequency and severity of micro and macrovascular complications of type 1 diabetes (T1D). The present study aims to determine the prevalence of dyslipidemia and its association with clinical and laboratory findings in diabetic children and adolescents.

Methods: The study included 202 children and adolescents with T1D.

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