Medicine and Health Sciences Commons^™

Subchronic Oral Exposure To Propylparaben Induces Endocrine Disruption And Genotoxicity In Male Rats, Sarah M. Moud, Najiah M. Alyamani

Saudi Toxicology Journal

ropylparaben (PP) is widely employed as a preservative in consumer products such as cosmetics, pharmaceuticals, and food items, prompting increasing safety apprehensions due to its possible endocrine-disrupting properties. A controlled experimental investigation was conducted to assess the toxicological effects of sub-chronic propylparaben exposure on the testes of adult male rats. Twenty adult male rats (n = 20) were randomly assigned to two groups (10 rats per group): a control group receiving distilled water and a treated group receiving PP orally at a dosage of 100 mg/kg body weight once daily for four consecutive weeks. This dosage was selected based on …

Serum Phosphoproteome Alterations Associated With Cardiac Troponin I Levels In Acute Myocardial Infarction ​, Merve Öztuğ, Meltem Aşicioğlu, Konca Altinkaynak, Evren Kilinç

Turkish Journal of Medical Sciences

Background/aim: Acute myocardial infarction (AMI) triggers systemic biochemical responses, including dynamic changes in the phosphorylation status of circulating proteins. However, the phosphoproteomic profile of serum in the context of AMI remains insufficiently characterized. This study aimed to investigate serum phosphoproteomic alterations associated with AMI and to explore potential correlations with markers of cardiac injury.

Materials and methods: A comparative phosphoproteomic analysis was performed on serum samples obtained from eight patients with AMI and pooled healthy control samples. High-abundance serum proteins were depleted, and phosphopeptides were enriched using TiO2 phosphopeptide enrichment kit. Samples were analyzed by liquid chromatography–tandem mass spectrometry using …

Effects Of Colchicine On Sah-Induced Vascular Damage In An Experimental Subarachnoid Hemorrhage Model ​, Emi̇ne Demi̇r, Cumaali̇ Demi̇rtaş, Cansu Sönmez, Eray Meti̇n Güler, Sarper Kocaoğlu, Hakan Beyaztaş, Eyüp Çeti̇n

Turkish Journal of Medical Sciences

Background/aim: Subarachnoid hemorrhage (SAH) is a severe cerebrovascular condition associated with high morbidity and mortality. Inflammation and oxidative stress play critical roles in its pathophysiology, especially in the development of secondary vascular damage. This study aimed to evaluate the protective effects of colchicine on vascular integrity and biochemical markers following SAH in an experimental rat model.

Materials and methods: Eighteen female Sprague Dawley rats were randomly divided into 3 groups: Control (no SAH), SAH (induced without treatment), and SAH + colchicine (received intraperitoneal colchicine at a dose of 1 mg/kg). SAH was induced by injecting autologous blood into the cisterna …

Tremor Modulation: A Systematic Review Of Resetting By Single-Pulse Transcranial Magnetic Stimulation ​, Handan Uzunçakmak Uyanik, Çağri Mesut Temuçi̇n

Turkish Journal of Medical Sciences

Background/aim: Tremor arises from mechanical, reflex, or central oscillatory mechanisms. Transcranial magnetic stimulation (TMS) can transiently perturb ongoing tremor and enables the quantitative assessment of phase resetting, offering circuit-level insight into tremor types. Although numerous studies have applied TMS-induced resetting, the findings have not been systematically reviewed. This study systematically reviews human studies evaluating TMS-induced tremor resetting across tremor types.

Materials and methods: A systematic search of PubMed and Google Scholar identified human studies using TMS to perturb tremor or rhythmic movement. Search terms included “tremor resetting,” “resetting of tremor,” “tremor phase shift,” “tremor phase reset,” “transcranial magnetic stimulation,” and …

Artificial Intelligence-Assisted Neuropharmacology: Reshaping Drug Discovery And Translational Strategies For Neurological Diseases ​, Pri̇yanka Rathee, Suni̇thi̇ Lohan, Sari̇ta Khatkar, Neelam Mali̇k, Esra Akkol, Renu Sehrawat, Pooja Rathee, Anurag Khatkar

Turkish Journal of Medical Sciences

The rapid expansion of data-driven technologies, particularly machine learning (ML) and artificial intelligence (AI), has substantially influenced biomedical research and drug discovery. In neuropharmacology, the availability of large-scale genomic, proteomic, chemical, and clinical datasets has stimulated the adoption of AI-based approaches to address persistent challenges in neurological drug development, including high attrition rates and the scarcity of disease-modifying therapies. Unlike prior reviews that broadly discuss AI applications in drug discovery or neurology, this narrative review focuses specifically on neuropharmacology, with an emphasis on translational relevance, disease-oriented examples, and real-world constraints. We critically examine the application of AI and ML across …

Comparative Efficacy Of Repetitive Peripheral Magnetic Stimulation And Transcutaneous Electrical Nerve Stimulation In Upper Trapezius Myofascial Pain Syndrome ​, Shahri̇yar Kalbi̇yev, Şehi̇m Kutlay, Ati̇lla Hali̇l Elhan, Yeşi̇m Kurtai̇ş Aytür, Aysun Genç

Turkish Journal of Medical Sciences

Background/aim: In this prospective, randomized, single-blind study, the effects of repetitive peripheral magnetic stimulation (rPMS) and transcutaneous electrical nerve stimulation (TENS) on pain intensity, functional status, and tissue elasticity were evaluated in patients with upper trapezius myofascial pain syndrome (MPS).

Materials and methods: A total of 75 female patients were randomly allocated to three groups: rPMS, TENS, and sham rPMS. All participants were provided with an exercise program consisting of cervical range-of-motion (ROM), stretching, and strengthening exercises. Outcome measures included pain intensity assessed using the visual analog scale, pressure pain threshold (PPT), the Neck Disability Index, cervical ROM, SF-36 subscale …

The Importance Of Early Intraoperative Ultrasonography And The Relationship Between Surgical Technique And Allograft Function In Patients With Compartment Syndrome Following Renal Transplantation Surgery ​, Burak Yağdiran, Emre Karakaya, Ravana Ahmadli̇, Adem Şafak, Yağmur Kurtuluş, Nedi̇m Çekmen, Meri̇ç Yavuz Çolak, Mehmet Haberal

Turkish Journal of Medical Sciences

Background/aim: In rare cases, patients undergoing renal transplantation (RT) may develop renal allograft compartment syndrome (RACS) if the renal volume is larger than the retroperitoneal space prepared in the iliac fossa. In such cases, the optimal treatment is early decompression surgery. The primary aim of the present descriptive and comparative study is not to identify the optimal surgical technique, but rather to evaluate the role of early Doppler ultrasonography (DUSG) in the recognition of renal allograft compartment syndrome and to assess outcomes following timely decompressive interventions.

Materials and methods: A total of 275 patients were examined retrospectively for the study, …

Impact Of Two Sedation Protocols On Cardiac Electrophysiology During Spinal Anesthesia ​, Selvi̇naz Durantaş, Burak Nalbant, Fatma Kavak Akelma, Gökhan Erdem, Abdulkadi̇r But

Turkish Journal of Medical Sciences

Background/aim: Perioperative factors such as anesthetic drugs, central blocks, surgical stress, pain, and anxiety can affect cardiac electrophysiology and increase the risk of arrhythmias. Arrhythmia susceptibility can be assessed using ventricular markers such as the QT interval (QT), heart rate-corrected QT interval (QTc), QT dispersion (QTd), time between peak and end of T wave (Tp–e), cardiac electrophysiologic balance index (iCEB), and heart rate-corrected index of cardiac electrophysiologic balance (iCEBc), obtained from noninvasive electrocardiography (ECG) data. This study compared the effects of propofol and dexmedetomidine sedation on these parameters in patients undergoing total knee arthroplasty performed under spinal anesthesia.

Materials and …

Analysis Of Calr-Mutated Essential Thrombocythemia As A Distinct Disease Entity Compared With Jak2 V617f-Mutated And Triple-Negative Patients ​, Gökhan Sami̇ Aydin, Eli̇f Aksoy, İpek Yönal Hi̇ndi̇lerden, Aynur Dağlar Aday, Emi̇ne Gültürk, Meli̇ha Nalçaci, Fehmi̇ Hi̇ndi̇lerden

Turkish Journal of Medical Sciences

Background/aim: Calreticulin (CALR) mutations in essential thrombocythemia (ET) are associated with younger age, higher platelet counts, and lower thrombosis rates. The present study analyzes the demographic, laboratory, and clinical features of the CALR mutation and its prognostic impact.

Materials and methods: The clinical impact of CALR mutations was assessed in 391 ET patients.

Results: CALR-mutation patients were more commonly male than JAK2 V617F-positive and triple-negative patients. Age at diagnosis was similar across all groups, although patients with type 2 CALR mutations were younger than those with nontype 1/nontype 2 mutations. Compared with JAK2 V617F-positive patients, CALR-mutation patients had lower leukocyte …

Asthma Data In Türkiye Between 2016 And 2022: A Nationwide Descriptive And Observational Study Covering The Entire Adult Population, Kurtuluş Aksu, Gürgün Tuğçe Vural Solak, Nai̇m Ata, Mustafa Hami̇dullah Türkkani, Mustafa Mahi̇r Ülgü, Şuayi̇p Bi̇ri̇nci̇, Funda Aksu

Turkish Journal of Medical Sciences

Background/aim: Determining the current burden of asthma in countries is important in the diagnosis and follow-up of asthma patients and for the development of national health policies. Our study aimed to clarify the epidemiological and clinical data regarding asthmatic adults in Türkiye.

Materials and methods: The study was designed as a nationwide descriptive, observational cross-sectional study. Data on adult patients who were followed with the diagnosis of asthma in all public, private, and university hospitals in Türkiye between January 2016 and December 2022 were obtained from the e-Nabız database of the Ministry of Health and analyzed.

Results: The number of …

Comprehensive Profiling Of Gut Microbiota In Postmenopausal Osteoporosis ​, Gülsemi̇n Ertürk Çeli̇k, Sedat Yildiz, Münevver Aksoy Bektaş, Yaprak Engi̇n-Üstün

Turkish Journal of Medical Sciences

Background/aim: Osteoporosis is a multifactorial skeletal disease that predominantly affects postmenopausal women and is characterized by reduced bone mass and an increased risk of fractures. Growing evidence suggests that the gut microbiota plays a pivotal role in bone metabolism through immunological, endocrine, and metabolic pathways, forming the basis of the so-called gut– bone axis. This study aimed to characterize gut microbiota composition in postmenopausal women with osteoporosis compared with healthy controls.

Materials and methods: Forty postmenopausal women aged 55–65 years were classified into osteoporosis (n = 20) and healthy control (n = 20) groups based on dual-energy X-ray absorptiometry T-scores. …

Association Between Superstition Levels On Sports-Specific Success Motivation In Active Athletes: A Study In Ankara Province ​, Canan Sayin Temur

Turkish Journal of Medical Sciences

Background/aim: When athletes perceive themselves as strong, they may seek to maintain their motivation through the control of random external factors. The present study examines the effect of superstitions on sports-specific success motivation among active athletes.

Materials and methods: The research population consisted of licensed athletes in the athletics branch, while the sample comprised licensed and active athletes based in Ankara. A total of 408 athletes participated in the research, including 201 women, and 207 men. The participants completed a three-part questionnaire consisting of a Personal Information Form, the Motivation in Sports Scale, and the Superstitious Beliefs and Behaviors in …

Sun-Macerated Hypericum Perforatum Oleates In Fixed Oils: Analytical Characterization And Comparative Wound-Healing Activity, Ci̇han Çapar, Esra Akkol, Ayli̇n Yaba, Ayhan Parmaksiz, Engi̇n Sümer, Erdem Yeşi̇lada

Turkish Journal of Medical Sciences

Background/aim: Hypericum perforatum L. oleates prepared in fixed oils have long been used for wound management due to their anti-inflammatory, antibacterial, and tissue-regenerative properties. The bioactivity of these oleates is mainly attributed to hypericin, hyperforin, and pseudohypericin. This study aimed to comparatively evaluate the wound-healing potential of H. perforatum oleates prepared in different fixed oils, including Olea europaea L. (olive), Sesamum indicum L. (sesame), Helianthus annuus L. (sunflower), and Nigella sativa L. (black seed).Materials and methodsFixed oils were characterized by GC–MS, while oleuropein in olive oil and thymoquinone in black seed oil were quantified by HPLC, and sesamin and sesamol …

Red Cell Cryopreservation For Serologic Testing: Bulk Freezing With Polyvinylpyrrolidone (Pvp) ​, Di̇lek Gürlek Gökçebay, Willy Albert Flegel

Turkish Journal of Medical Sciences

Background/aim: Red cell cryopreservation is essential for immunohematology reference laboratories. Various cryopreservation methods maintain the structural integrity of red cells, such as bulk freezing with glycerol and droplet freezing with polyvinylpyrrolidone (PVP). In this paper, we provide a technical note with real-world data and report our experience with a modified PVP bulk-freezing method in a transfusion medicine setting.Materials and methods. Red cells were separated from whole blood samples and incubated for 1 h at room temperature with PVP with slow agitation or no agitation before freezing. Instead of using the established method of shock freezing droplets in liquid nitrogen, the …

Severe Autoimmune Digital Vasculopathy In Systemic Sclerosis With Lupus- And Antiphospholipid-Spectrum Serologic Positivity And Libman–Sacks Endocarditis: A Case Report, Mayada F. Bawayan, Thekra A. Alwafi, Abdulaziz F. Samandar, Abdulaziz M. Gari

Saudi Toxicology Journal

Background: Systemic sclerosis (SSc) is an autoimmune connective tissue disease characterized by prominent vasculopathy, which may lead to severe digital ischemia and ulceration. The coexistence of SSc-related vasculopathy with lupus- and antiphospholipid-spectrum manifestations, including Libman–Sacks endocarditis, is uncommon and poses diagnostic and therapeutic challenges. Case Presentation: We report a 37-year-old female with a systemic sclerosis phenotype and overlapping lupus- and antiphospholipid-spectrum features, who presented with severe bilateral digital ischemia and ulceration. Investigations revealed active autoimmune disease with inflammatory, immunologic, and vascular involvement, along with Libman–Sacks endocarditis. Imaging excluded large-vessel occlusive disease. The patient was treated with targeted vasodilator therapy and …

Retinal Microvascular And Neuroretinal Structural Changes In Pulmonary Arterial Hypertension Assessed By Octa: A Comparative Study ​, Murat Erdağ, Tunahan Çalişkan, Hakan Yildirim, Tarik Kivrak, Mehmet Canleblebi̇ci̇, Ali̇ Dal, Mehmet Balbaba

Turkish Journal of Medical Sciences

Background/aim: Pulmonary arterial hypertension (PAH) is a progressive disorder with systemic vasculopathy, and noninvasive assessment remains challenging. The retina, sharing anatomical similarities with the cerebral microcirculation, is an accessible site for visualizing systemic vascular compromise. This study quantitatively evaluated retinal microvascular and neuroretinal structural changes in PAH patients compared to healthy controls using optical coherence tomography angiography (OCTA).

Materials and methods: In this single-center, cross-sectional case-control study, 40 patients with group 1 PAH and 38 healthy controls were enrolled. For statistical independence, only the right eye of each participant was analyzed (total: 78 eyes). All participants underwent high-resolution OCTA imaging. …

Prognostic Significance And Clinicopathological Associations Of Tumor Budding And Poorly Differentiated Clusters In Endometrioid Endometrial Carcinoma ​, Hani̇fe Seda Mavi̇li̇, Ömer Atmiş, Fatma Seher Pehli̇van, Fatma Sezen Çavdaroğlu Deveci̇, Ali̇ Riza Kandi̇loğlu

Turkish Journal of Medical Sciences

Background/aim: Tumor budding (TB) and poorly differentiated clusters (PDCs) are histopathological parameters that have been associated with poor prognosis in various malignancies, particularly colorectal carcinoma. Although numerous studies have demonstrated an association between the microcystic, elongated, and fragmented (MELF) pattern in endometrial carcinomas and lymphovascular invasion as well as lymph node metastasis, the literature regarding TB and PDCs in this context remains limited. This study aimed to investigate the potential associations of the MELF pattern, TB, and PDCs with overall survival, progression-free survival, and clinicopathological parameters in cases of endometrioid endometrial carcinoma (EEC).

Materials and methods: A total of 190 …