Publications by authors named "Dursun S"

Background: Tyrosine kinase inhibitors (TKIs) have significantly improved treatment-related outcomes of patients with oncogene-driven non-small-cell lung cancer (NSCLC). TKIs are usually well tolerated and used for a prolonged time, although experienced toxicity varies between patients. It is unclear whether patients report all (low grade) toxicities and how these impact their daily lives.

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  • The study investigated the significance of metabolic tumor volume (tMTV) in patients with advanced non-small cell lung cancer (NSCLC) undergoing immune checkpoint blockade (ICB) therapy, using 18F-FDG-PET/CT scans.
  • It involved 518 patients across multiple institutions and found that those with high tMTV had poorer overall survival when treated with ICBs alone compared to those with low tMTV.
  • The research suggests that high tMTV is associated with increased systemic inflammation and genomic instability, making it a potential biomarker for determining treatment strategies in NSCLC patients with positive PD-L1 expression.
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  • Schizophrenia is a complex mental disorder affecting about 1% of people globally, characterized by symptoms like hallucinations, delusions, and cognitive dysfunction, with traditional treatment mainly relying on antipsychotic drugs targeting dopamine pathways.
  • Despite the existing treatments, patients face challenges such as incomplete symptom relief, treatment resistance, and side effects, prompting a search for newer, more effective strategies.
  • Innovative approaches like targeting neural networks, using biased agonists for specific signaling, and molecular polypharmacy (like the drug KarXT) aim to provide more effective and tailored treatments for schizophrenia, improving patient outcomes and quality of life.
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Psychosis, defined as a set of symptoms that results in a distorted sense of reality, is observed in several psychiatric disorders in addition to schizophrenia. This paper reviews the literature relevant to the underlying neurobiology of psychosis. The dopamine hypothesis has been a major influence in the study of the neurochemistry of psychosis and in development of antipsychotic drugs.

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Background: Major depressive disorder is the leading cause of mental health-related burden globally and up to one-third of major depressive disorder patients never achieve remission. Transcranial Direct Current Stimulation is a non-invasive intervention used to treat individuals diagnosed with major depressive disorder and bipolar disorder. Since the last transcranial direct current stimulation review specifically focusing on cognitive symptoms in major depressive disorder, twice as many papers have been published.

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Introduction: Brain metastases (BM) are common in patients with advanced -mutated (m+) NSCLC. Despite good BM-related outcomes of osimertinib, several patients still experience intracranial progression. A possible explanation is pharmacologic failure due to low plasma trough levels (C) and consequently limited intracranial osimertinib exposure.

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In this study, methylene blue (MB) pollutant in water was removed using produced hazelnut shell loaded semi-interpenetrating polymer networks (HS loaded semi-IPN) adsorbent. The physical and chemical characterizations of the adsorbents were investigated using TGA, DSC, FT-IR, BET, FE-SEM, and EDX. Experimental parameters such as temperature, swelling, dye concentration, contact time, pH solution, and adsorbent dosage for MB adsorption were thoroughly investigated.

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Background And Purpose: Concurrent chemo-radiotherapy (CCRT) followed by adjuvant durvalumab is standard-of-care for fit patients with unresectable stage III NSCLC. Intensity modulated proton therapy (IMPT) results in different doses to organs than intensity modulated photon therapy (IMRT). We investigated whether IMPT compared to IMRT reduce hematological toxicity and whether it affects durvalumab treatment.

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In this study, it was aimed to make three-dimensional reconstruction of the stifle joint computed tomography (CT) images of the Van cats, to obtain their osteometric measurements, and to determine the statistical biometric differences of these measurement values in terms of both sexual dimorphism and homotypic variations. A total of 16 healthy adult Van cats of both sexes were used. The stifle joints of the cats were scanned with a CT device and images were obtained.

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Energy is the most critical input for production and consumption. The inputs of energy cause irreversible damage to the environment. The studies carried out to reduce the environmental impact of the methods used in energy production are extremely valuable.

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Osimertinib is prescribed to patients with metastatic non-small cell lung cancer (NSCLC) and a sensitizing EGFR mutation. Limited data exists on the impact of patient characteristics or osimertinib exposure on effectiveness outcomes. This was a Dutch, multicenter cohort study.

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The standard first-line treatment for non-oncogene driven metastatic non-small cell lung cancer (NSCLC) is an immune checkpoint inhibitor (ICI) based strategy. Although guidelines increasingly advise adding local radical treatment (LRT) to patients with synchronous oligometastatic (sOMD) NSCLC responding to systemic therapy, this recommendation is based on the studies without ICI. Furthermore, the majority of published oligometastatic studies were not on an intention-to-treat basis, resulting in selection bias.

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Introduction: Bone metastases are frequent in patients with -mutated () NSCLC. Skeletal-related events (SREs) are common in these patients; however, no data on SRE in osimertinib-treated patients are reported. We investigated the development of bone metastases and SREs in patients with NSCLC treated with osimertinib.

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Opioid addiction is characterized by adaptations in the mesolimbic dopamine system that occur during chronic opioid use. Alterations in dopaminergic transmission contribute to pathological drug-seeking behavior and other symptoms associated with opioid withdrawal following drug discontinuation, making drug abstinence challenging and contributing to high rates of relapse among those suffering from substance use disorder. Recently, the use of dopamine partial agonists has been proposed as a potential strategy to restore dopaminergic signalling during drug withdrawal, while avoiding the adverse side effects associated with stronger modulators of dopaminergic transmission.

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A large body of research supports the role of stress in several psychiatric disorders in which anxiety is a prominent symptom. Other research has indicated that the gut microbiome-immune system- brain axis is involved in a large number of disorders and that this axis is affected by various stressors. The focus of the current review is on the following stress-related disorders: generalized anxiety disorder, panic disorder, social anxiety disorder, post-traumatic stress disorder and obsessivecompulsive disorder.

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In this study, a hazelnut shell (HS) filled semi-interpenetrating polymer networks (semi-IPN) biocomposite adsorbent with novel and different compositions was developed that will enable the removal of lead ions, which are commonly found in water, by adsorption reactions. The structural and morphological properties of the produced adsorbents were characterized by FT-IR, XRD, TGA, DSC, BET, FE-SEM, EDX, and zeta potential measurements, and the production mechanism of these adsorbents was discussed. The effects of parameters such as different adsorbent dosages, different heavy metal concentrations, type of adsorbent, contact time, pH, and temperature on the swelling abilities and adsorption properties of adsorbents were investigated in detail.

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Ayahuasca is a psychoactive brew traditionally used in indigenous and religious rituals and ceremonies in South America for its therapeutic, psychedelic, and entheogenic effects. It is usually prepared by lengthy boiling of the leaves of the bush and the mashed stalks of the vine in water. The former contains the classical psychedelic N,N-dimethyltryptamine (DMT), which is thought to be the main psychoactive alkaloid present in the brew.

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MicroRNA (miRNA) plays an important role in the control of gene expression and is implied in many biological functions, including embryo implantation and development. The aim was to assess plasma miRNA profiles during the peri-implantation and ascertain potential candidate miRNA markers for early pregnancy diagnosis in ovine plasma. The plasma samples were obtained from a total of 24 ewes on days 12 (pre-implantation; P12, = 4), 16 (implantation; P16, = 4) and 22 (post-implantation; P22, = 4) after mating, and on their corresponding days of 12 (Pre-C; C12, = 4), 16 (Imp-C; C16, = 4) and 22 (Post-C; C22, = 4) of the estrous cycle.

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Transcranial direct current stimulation (tDCS) is a promising adjuvant treatment for persistent auditory verbal hallucinations (AVH) in Schizophrenia (SZ). Nonetheless, there is considerable inter-patient variability in the treatment response of AVH to tDCS in SZ. Machine-learned models have the potential to predict clinical response to tDCS in SZ.

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MicroRNA (miRNA), acting as the transcriptional regulator of gene expression, has been widely demonstrated to be involved in many biological functions, including embryo implantation and development. The objective of the current study was to illuminate the expression pattern of microRNAs (miRNAs) in the endometrium during the peri-implantation in ewes. Intercaruncular endometrial samples was obtained from a total of 24 ewes on days of 12 (pre-implantation, n = 4), 16 (implantation, n = 4) and 22 (post-implantation, n = 4) of pregnancy following mating, and on their corresponding days of 12 (n = 4), 16 (n = 4) and 22 (n = 4) of the estrous cycle.

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Introduction: Exposure to osimertinib, a third generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) for treatment of non-small cell lung cancer (NSCLC) and a sensitizing EGFR mutation, can be substantially below average. We evaluated whether plasma levels could be boosted by co-administration of cobicistat, a strong Cytochrome P450 3A-inhibitor.

Methods: This was a pharmacokinetic, proof-of-concept clinical trial (the OSIBOOST trial, NCT03858491).

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Although results are still preliminary, ketamine and classical hallucinogens have shown promise in recent years as novel, fast-acting antidepressants, especially for the treatment of unipolar treatment-resistant depression (TRD). Depression also seems to be related to abnormal levels of peripheral inflammatory and neurotrophic biomarkers, which may one day help to diagnose of this disorder. In this context, this systematic review of clinical trials evaluated the current evidence that relates the antidepressant effects of ketamine and classical hallucinogens on TRD with changes in inflammatory and neurotrophic biomarkers.

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