Publications by authors named "Guelcin Beker"

Introduction: Immune checkpoint inhibitors (ICI) have improved outcomes in non-small cell lung cancer (NSCLC). Nevertheless, the clinical benefit of ICI as monotherapy or in combination with chemotherapy remains widely varied and existing biomarkers have limited predictive value. We present an analysis of ENLIGHT-DP, a novel transcriptome-based biomarker directly from histopathology slides, in patients with lung adenocarcinoma (LUAD) treated with ICI and platinum-based chemotherapy.

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Background/aim: Circadian rhythm proteins (CRPs) play critical roles in both physiological and pathophysiological conditions, including neurodegenerative disorders. As members of CRPs, the nuclear receptors Rev-Erbα/β regulate circadian rhythm particularly by inhibiting Bmal1 protein and are involved in the neuroinflammation and cell death processes. However, their roles in the development of neuronal injury after traumatic brain injury (TBI) were largely unexplored, and so were investigated in the present study.

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Introduction: Primary mucinous cystadenoma is a very rare lesion in the spleen, with only a few reported cases available in the literature. Ectopic pancreatic or enteric tissue and invaginated splenic capsular epithelium are assumed to be the origin of mucinous cystadenomas of the spleen. We present the first reported case in Ethiopia.

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  • * This study conducted a systematic literature review and meta-analyses to determine whether the claims of memory retrieval failure in DID patients are reflected in controlled memory tests.
  • * The findings highlight some memory transfer between identities, but also point out important methodological issues that make it difficult to draw strong conclusions about IIA, suggesting a more nuanced interpretation of these results.
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Fluorescent proteins (FPs) stand as pivotal tools extensively employed across diverse biological research endeavors in various model systems. However, long-standing concerns surround their use due to the numerous side effects associated with their expression. Recent investigations have brought to light the significance of hydrogen peroxide (HO) that is associated with the maturation process of green fluorescent protein (GFP) fluorophores.

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Brain injury develops from a complex series of pathophysiological phases, resulting in acute necrotic or delayed apoptotic cell death after traumatic brain injury (TBI). Inhibition of apoptotic cell death is critical for the treatment of acute neurodegenerative disorders, such as TBI. Here, we investigated the role of phosphodiesterase 10A (PDE10A) in the development of neuronal injury, particularly in apoptotic cell death.

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Traumatic brain injury (TBI), also known as intracranial injury, is a common condition with the highest incidence rate among neurodegenerative disorders and poses a significant public health burden. Various methods are used in the treatment of TBI, but the effects of cold-induced traumatic brain injury have not been thoroughly studied. In this context, vinpocetine (VPN), derived from Vinca minor, exhibits notable anti-inflammatory and antioxidant properties.

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  • - Preeclampsia is a serious condition during pregnancy, marked by high blood pressure and possible organ damage, making early detection essential for protecting both mother and baby.
  • - This study developed new aptamers that specifically target key biomarkers (VEGF and PlGF) associated with preeclampsia, showing binding strengths comparable to traditional methods.
  • - The promising results of these aptamers suggest they could be used in affordable, easy-to-use diagnostic tests, improving early detection and treatment of preeclampsia for better health outcomes.
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  • Contact lenses equipped with electro-chemical sensors provide a non-invasive way to monitor blood biomarkers, but their rigid components cause discomfort and inaccuracies in readings.
  • A new flexible, paper-based contact lens design allows for colorimetric glucose analysis, utilizing a 3D printing method that simplifies production and reduces reliance on cleanroom technology.
  • The innovative microfluidic system in the lens can detect glucose concentrations as low as 2 mM within 10 seconds, demonstrating effective glucose monitoring for diabetic patients.
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Bladder volume measurement is critical for early detection and management of lower urinary tract dysfunctions. Current gold standard is invasive, and alternative technologies either require trained personnel or do not offer medical grade information. Here, we report an integrated wearable ultrasonic bladder volume monitoring device for accurate and autonomous continuous monitoring of the bladder volume.

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  • The review highlights advancements in transparent electrodes that are crucial for multimodal sensing technologies, emphasizing their ability to detect a range of signals simultaneously.
  • Key materials like graphene, carbon nanotubes, and conductive polymers are noted for their optical transparency and electrical conductivity, making them essential for applications in fields like healthcare and solar technology.
  • The paper discusses challenges such as mechanical flexibility and biocompatibility while exploring new materials and techniques to enhance the performance of these electrodes in complex environments.
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Advances in artificial intelligence have paved the way for leveraging hematoxylin and eosin-stained tumor slides for precision oncology. We present ENLIGHT-DeepPT, an indirect two-step approach consisting of (1) DeepPT, a deep-learning framework that predicts genome-wide tumor mRNA expression from slides, and (2) ENLIGHT, which predicts response to targeted and immune therapies from the inferred expression values. We show that DeepPT successfully predicts transcriptomics in all 16 The Cancer Genome Atlas cohorts tested and generalizes well to two independent datasets.

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Background: Sleep is disturbed in Rett syndrome (RTT), a rare and progressive neurodevelopmental disorder primarily affecting female patients (prevalence 7.1/100,000 female patients) linked to pathogenic variations in the X-linked methyl-CpG-binding protein 2 () gene. Autonomic nervous system dysfunction with a predominance of the sympathetic nervous system (SNS) over the parasympathetic nervous system (PSNS) is reported in RTT, along with exercise fatigue and increased sudden death risk.

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Carvacrol (CV) is an organic compound found in the essential oils of many aromatic herbs. It is nearly unfeasible to analyze all the current human proteins for a query ligand using in vitro and in vivo methods. This study aimed to clarify whether CV possesses an anti-diabetic feature via Docking-based inverse docking and molecular dynamic (MD) simulation and in vitro characterization against a set of novel human protein targets.

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Background: In the search for objective tools to quantify neural function in Rett Syndrome (RTT), which are crucial in the evaluation of therapeutic efficacy in clinical trials, recordings of sensory-perceptual functioning using event-related potential (ERP) approaches have emerged as potentially powerful tools. Considerable work points to highly anomalous auditory evoked potentials (AEPs) in RTT. However, an assumption of the typical signal-averaging method used to derive these measures is "stationarity" of the underlying responses - i.

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  • Wearable electronics, like the YouCare device, are becoming popular for health monitoring, capable of recording ECG signals continuously without the need for user initiation by embedding leads in garments.
  • A study compared ECG data from the YouCare garment with a conventional Holter monitor in 30 patients and found that the YouCare device provided a good quality of ECG signals and was mostly synchronized with the Holter monitor.
  • Patients reported that the YouCare device was significantly more comfortable than the Holter monitor, indicating a preference for the garment-based approach in health monitoring.
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Purpose: The purpose of the European consensus was to provide recommendations for the treatment of patients with a painful degenerative varus knee using a joint preservation approach. Part II focused on surgery, rehabilitation and complications after tibial or femoral correction osteotomy.

Methods: Ninety-four orthopaedic surgeons from 24 countries across Europe were involved in the consensus, which focused on osteotomies around the knee.

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Purpose: The European consensus was designed with the objective of combining science and expertise to produce recommendations that would educate and provide guidance in the treatment of the painful degenerative varus knee. Part I focused on indications and planning.

Methods: Ninety-four orthopaedic surgeons from 24 European countries were involved in the consensus, which focused on the most common indications for osteotomy around the knee.

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Objective: Single-nucleotide variants (SNVs) are of great significance in prenatal diagnosis as they are the leading cause of inherited single-gene disorders (SGDs). Identifying SNVs in a non-invasive prenatal screening (NIPS) scenario is particularly challenging for maternally inherited SNVs. We present an improved method to predict inherited SNVs from maternal or paternal origin in a genome-wide manner.

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The objective was to assess whether low-protein (LP) diets regulate food intake (FI) and thermogenesis differently during thermoneutral (TN) and heat stress (HS) conditions. Two-hundred-day-old male broiler chicks were weight-matched and assigned to 36 pens with 5-6 chicks/pen. After 2 weeks of acclimation, birds were subjected into four groups (9 pens/group) including (1) a normal-protein diet under TN (ambient temperature), (2) an LP diet under TN, (3) a normal-protein diet under HS (35 °C for 7 h/day), and (4) an LP diet under HS, for 4 weeks.

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Motivation: Cell-type deconvolution methods aim to infer cell composition from bulk transcriptomic data. The proliferation of developed methods coupled with inconsistent results obtained in many cases, highlights the pressing need for guidance in the selection of appropriate methods. Additionally, the growing accessibility of single-cell RNA sequencing datasets, often accompanied by bulk expression from related samples enable the benchmark of existing methods.

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  • The study looks at how chronic treatment with humanin (HN) affects pain-related markers in the dorsal root ganglia (DRG) of diabetic mice.
  • HN treatment significantly lowered levels of NMDA, IL-1β, TRPV1, and substance P, which are associated with pain and inflammation.
  • It also enhanced the survival of DRG neurons by activating the JAK2/STAT3 pathway, indicating potential therapeutic benefits for diabetes-related pain management.
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Microfluidic systems find widespread applications in diagnostics, biological research, chemistry, and engineering studies. Among their many critical parameters, flow rate plays a pivotal role in maintaining the functionality of microfluidic systems, including droplet-based microfluidic devices and those used in cell culture. It also significantly influences microfluidic mixing processes.

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Social isolation is associated with poor stroke outcome, but the underlying molecular mechanisms were largely unknown. In male Balb/C mice exposed to transient middle cerebral artery occlusion (MCAo), we examined the effects of social isolation initiated post-weaning on ischemic injury, cytokine/chemokine responses and cell signaling using a broad panel of techniques that involved immunocytochemistry, cytokine/chemokine array and Western blots. Social isolation initiated post-weaning elevated infarct size, brain edema and neuronal injury in the ischemic brain tissue 3 days after MCAo, and increased microglia/ macrophage and leukocyte accumulation.

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Background In the search for objective tools to quantify neural function in Rett Syndrome (RTT), which are crucial in the evaluation of therapeutic efficacy in clinical trials, recordings of sensory-perceptual functioning using event-related potential (ERP) approaches have emerged as potentially powerful tools. Considerable work points to highly anomalous auditory evoked potentials (AEPs) in RTT. However, an assumption of the typical signal-averaging method used to derive these measures is "stationarity" of the underlying responses - i.

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