Publications by authors named "Ali OEender Yildirim"

Background: This study aims to identify factors predicting recurrence and unfavorable prognosis in cN+ patients who have undergone sentinel lymph node biopsy (SLNB) following neoadjuvant chemotherapy (NAC).

Methods: The retrospective multi-centre "MF18-02" and the prospective multi-centre cohort registry trial "MF18-03" (NCT04250129) included patients with cT1-4N1-3M0 with SLNB+/- axillary lymph node dissection (ALND) post-NAC.

Results: A total of 2407 cN+ patients, who later achieved cN0 status after NAC and subsequently underwent SLNB, were studied.

View Article and Find Full Text PDF

SARS-CoV-2 infection is associated with long-lasting neurological symptoms, although the underlying mechanisms remain unclear. Using optical clearing and imaging, we observed the accumulation of SARS-CoV-2 spike protein in the skull-meninges-brain axis of human COVID-19 patients, persisting long after viral clearance. Further, biomarkers of neurodegeneration were elevated in the cerebrospinal fluid from long COVID patients, and proteomic analysis of human skull, meninges, and brain samples revealed dysregulated inflammatory pathways and neurodegeneration-associated changes.

View Article and Find Full Text PDF
Article Synopsis
  • - The ATLAS experiment at the LHC conducted a search for long-lived particles (LLPs) using a large dataset (140 fb^{-1}) from proton-proton collisions at 13 TeV, focusing on LLPs with masses from 5 to 55 GeV that decay within the inner detector.
  • - The study considered scenarios where LLPs are produced from exotic Higgs boson decays and models involving axionlike particles (ALPs).
  • - No significant findings above expected background levels were detected, leading to the establishment of upper limits on various production rates involving the Higgs boson and the top quark related to LLPs and ALPs.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the safety of omitting axillary lymph node dissection (ALND) in patients with residual axillary disease after neoadjuvant chemotherapy (NAC), focusing on those treated with sentinel lymph node biopsy (SLNB) or targeted axillary dissection (TAD).
  • An analysis of two multicenter cohorts (MF18-02 and MF18-03) included 501 patients who received regional nodal irradiation and achieved a complete clinical response to NAC.
  • Results showed low recurrence rates (0.4% axillary, 0.8% locoregional) and no significant differences in disease-free or disease-specific survival between SLNB and TAD, suggesting ALND omission is safe if patients receive
View Article and Find Full Text PDF

This Letter presents results from a combination of searches for Higgs boson pair production using 126-140  fb^{-1} of proton-proton collision data at sqrt[s]=13  TeV recorded with the ATLAS detector. At 95% confidence level (CL), the upper limit on the production rate is 2.9 times the standard model (SM) prediction, with an expected limit of 2.

View Article and Find Full Text PDF

This Letter presents the first study of the energy dependence of diboson polarization fractions in WZ→ℓνℓ^{'}ℓ^{'}(ℓ,ℓ^{'}=e,μ) production. The dataset used corresponds to an integrated luminosity of 140  fb^{-1} of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector. Two fiducial regions with an enhanced presence of events featuring two longitudinally polarized bosons are defined.

View Article and Find Full Text PDF
Article Synopsis
  • The study explores the effects of immunosuppressant medications like methylprednisolone, dexamethasone, and tocilizumab on secondary infections in COVID-19 patients in ICUs from March 2020 to October 2021.
  • It involved 412 patients divided into three groups based on their treatment: no immunosuppressants, some immunosuppressants, and all three studied agents, with findings showing higher rates of secondary infections and longer ICU stays in those receiving more extensive treatment.
  • Ultimately, while mortality rates were similar between the no and some treatment groups, those receiving all three agents had significantly higher mortality rates, indicating potential risks of immunosuppressant use in
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate the prevalence of pancreatic steatosis (PS) using transabdominal ultrasonography in Turkish gastroenterology clinics and identify associated factors.
  • A total of 1,700 volunteers revealed a PS prevalence of 68.9%, with factors like age, BMI, and metabolic syndrome linked to its severity.
  • The study also found that 11.8% of PS cases were in lean individuals, who were generally younger and had lower metabolic risk factors compared to those with non-lean PS.
View Article and Find Full Text PDF

Tranexamic acid (TXA) is a medication used to treat or prevent excessive blood loss due to certain medical conditions. It has a low side effect profile and is safe to administer in most instances. Anaphylaxis cases due to intravenous TXA have been reported in the literature.

View Article and Find Full Text PDF
Article Synopsis
  • * Researchers examined how perceived stigma, self-stigma related to COVID-19, and fear of the virus mediate the relationship between dissociative experiences and PTSD across different waves of the pandemic.
  • * Findings emphasize the critical need for mental health support and resources for healthcare workers to help them cope with the psychological impacts brought on by the pandemic.
View Article and Find Full Text PDF

Aim: This study was carried out to investigate the perception of the main competencies of disaster management in Iranian emergency department nurses in 2023 in hospitals affiliated with Kermanshah University of Medical Sciences. The present study was conducted to explore the perceived core disaster competencies in nurses of hospitals affiliated with Kermanshah University of Medical Sciences in 2023.

Background: Due to the rise in natural disasters, their escalating severity and associated regulatory response necessitate a closer look at the preparedness and core competencies of nursing personnel.

View Article and Find Full Text PDF
Article Synopsis
  • Rheumatoid arthritis (RA) is an autoimmune disease that primarily affects the joints, particularly in the hands and wrists, leading to significant disability and pain.
  • The study aimed to evaluate wrist sensory and motor functions in RA patients compared to healthy controls, using various strength and pain assessment methods.
  • Results showed that RA patients had reduced wrist muscle strength and joint position sense, highlighting the need for comprehensive wrist evaluations and targeted exercises in their treatment plans.
View Article and Find Full Text PDF

Introduction: Teleneuropsychology, which includes the remote application of neuropsychological tests to patients via telephone or videoconferencing, can expand access to health services for patients who reside in distant areas or have mobility restrictions. With the emergence of the COVID-19 pandemic, there has been a significant increase in the use of teleneuropsychology in cognitive assessment. In this review, the aim was to critically review the results of studies conducted in the field of teleneuropsychology and the fundamental principles related to tele-neuropsychological assessment.

View Article and Find Full Text PDF

The current study aimed to investigate the sensitivity of male testis parenchyma cells to chemotherapy agents and the protective effects and mechanisms of Morinda citrifolia (Noni) administration against structural and functional changes before and after chemotherapy (Paclitaxel (PTX)). For this purpose, rats were randomly assigned into four groups (Control = G1, PTX 5 mg/kg = G2; PTX + Noni 10 mg/kg = G3, PTX + Noni 20 mg/kg = G4). PTX was injected intraperitoneally for 4 consecutive weeks, at a dose of 5 mg/kg to all groups except the control group.

View Article and Find Full Text PDF
Article Synopsis
  • Sexual dysfunction is a common issue among patients with heart conditions, with studies indicating a global prevalence of about 62.6% for sexual disorders in this population.
  • A systematic review analyzed 17 studies published between 2003 and 2023, assessing various underlying factors affecting sexual health in cardiovascular patients.
  • The findings suggest a need for healthcare professionals to pay more attention to preventing and managing sexual dysfunction in cardiovascular patients, though the evidence has low certainty.
View Article and Find Full Text PDF

Introduction: The aim of this national, multicenter, cross-sectional, retrospective chart review study was to determine the proportion of patients in Turkey who received hepatitis C virus (HCV) treatment after receiving positive anti-HCV results during HCV screening.

Methodology: Data related to patients' demographics, laboratory results, time interval from obtaining a positive anti-HCV result to treatment initiation, specialty of the physician requesting anti-HCV screening, and type of hospital were analyzed.

Results: Among 1,000 patients who received a positive anti-HCV result, 50.

View Article and Find Full Text PDF

Industrial hemp (Cannabis sativa L.) is a highly recalcitrant plant under in vitro conditions that can be overcome by employing external stimuli. Hemp seeds were primed with 2.

View Article and Find Full Text PDF

Objectives: We aimed to develop a basic, easily applicable nomogram to improve the survival prediction of the patients with stage II/III gastric cancer (GC) and to select the best candidate for postoperative radiotherapy (RT).

Methods: In this multicentric trial, we retrospectively evaluated the data of 1597 patients with stage II/III GC after curative gastrectomy followed by postoperative RT ± chemotherapy (CT). Patients were divided into a training set (n = 1307) and an external validation set (n = 290).

View Article and Find Full Text PDF

Background: The term infodemic refers to the proliferation of both accurate and inaccurate information that creates a challenge in identifying trustworthy and credible sources. Among the strategies employed to mitigate the impact of the infodemic, social media literacy has emerged as a significant and effective approach. This systematic review examines the role of social media literacy in the management of the infodemic.

View Article and Find Full Text PDF

Background: One of the clinical responsibilities and goals of hospitals is to provide patients with comfort and security. The present study aims to assess patients' sense of security among patients in Iranian hospitals.

Methods: The present research employed a cross-sectional design.

View Article and Find Full Text PDF

Background: Recent research indicates a prevalence of typical lung infections, such as pneumonia, in lung cancer patients. Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii stand out as antibiotic-resistant pathogens. Given this, there is a growing interest in alternative therapeutic avenues.

View Article and Find Full Text PDF

We report the synthesis of two-dimensional and three-dimensional porous polyphenylenes (2D/3D-pPPs) the Diels-Alder cycloaddition polymerization reaction. The resulting 2D and 3D-pPPs showed surface areas up to 1553 m g, pore volumes of 1.45 cm g and very high H uptake capacities of 7.

View Article and Find Full Text PDF

Aims: To develop a deep learning model, with the aid of ChatGPT, for thyroid nodules, utilizing ultrasound images. The cytopathology of the fine needle aspiration biopsy (FNAB) serves as the baseline.

Material And Methods: After securing IRB approval, a retrospective study was conducted, analyzing thyroid ultrasound images and FNAB results from 1,061 patients between January 2017 and January 2022.

View Article and Find Full Text PDF

Background: Patients with heart failure (HF), especially the elderly, faced many challenges during the COVID-19 pandemic, which need to be explored. The present study aimed to analyse the challenging experiences facing the elderly with heart failure during the pandemic in Iran. To achieve this aim, a qualitative approach to research was employed.

View Article and Find Full Text PDF

Background: Since the beginning of the COVID-19 pandemic, different countries sought to manufacture and supply effective vaccines to control the disease and prevent and protect public health in society. The implementation of vaccination has created many ethical dilemmas for humans, which must be recognized and resolved. Therefore, the present study was conducted to analyze the ethical considerations in vaccination against COVID-19 from the perspective of service providers.

View Article and Find Full Text PDF