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Transformation Of Juvenile Idiopathic Arthritis In Adult-Oriented Rheumatology Care, Şeri̇fe Asya Germe Dağlioğlu, Zeynep Balik, Zehra Özsoy, Yunus Emre Dalkiliç, Ezgi̇ Deni̇z Batu, Özge Başaran, Yelda Bi̇lgi̇ner, Umut Kalyoncu, Seza Özen, Şule Apraş Bi̇lgen, Levent Kiliç Dec 2025

Transformation Of Juvenile Idiopathic Arthritis In Adult-Oriented Rheumatology Care, Şeri̇fe Asya Germe Dağlioğlu, Zeynep Balik, Zehra Özsoy, Yunus Emre Dalkiliç, Ezgi̇ Deni̇z Batu, Özge Başaran, Yelda Bi̇lgi̇ner, Umut Kalyoncu, Seza Özen, Şule Apraş Bi̇lgen, Levent Kiliç

Turkish Journal of Medical Sciences

Background/aim: Juvenile idiopathic arthritis (JIA) is the most prevalent form of chronic inflammatory arthritis in children, and the symptoms persist into adulthood for a considerable number of patients. This study aimed to compare the JIA subtypes using the diagnostic criteria used for adults and identify the clinical characteristics and treatment approaches for patients with JIA transitioning to adult-oriented rheumatology care.

Materials and methods: Patients diagnosed with JIA in the pediatric rheumatology clinic were retrospectively evaluated. The patients (n=107) who had at least one follow-up visit in the adult rheumatology clinic were included in the study. After transitioning from pediatric to …


Evaluation Of Prognostic Value Of Vascular Endothelial Growth Factor And Endocan In Non-Small Cell Lung Cancer, Mesut Meli̇h Özercan, Burcu Ancin, Yi̇ği̇t Yilmaz, Ahmet Müderri̇soğlu, Serkan Uysal, Ulaş Kumbasar, Zeynep Saribaş, Erkan Di̇kmen, Riza Doğan Dec 2025

Evaluation Of Prognostic Value Of Vascular Endothelial Growth Factor And Endocan In Non-Small Cell Lung Cancer, Mesut Meli̇h Özercan, Burcu Ancin, Yi̇ği̇t Yilmaz, Ahmet Müderri̇soğlu, Serkan Uysal, Ulaş Kumbasar, Zeynep Saribaş, Erkan Di̇kmen, Riza Doğan

Turkish Journal of Medical Sciences

Background/aim: No reliable, easily measurable biomarker currently exists for the screening or prognosis of lung cancer. The present study evaluates the potential utility of vascular endothelial growth factor (VEGF) and endocan, which can be readily measured in blood samples, as biomarkers for screening and prognostic assessment in lung cancer.

Materials and methods: Included in the study were 38 patients with early-stage non-small cell lung cancer (NSCLC) and 29 controls. All patients underwent surgical intervention and were monitored for 1 month postoperatively. Serum VEGF and endocan levels were measured preoperatively and postoperatively. Clinical characteristics, laboratory data, and histopathological findings were recorded …


Diagnostic Yield Of Clinical Exome Sequencing In Patients With Suspected Hereditary Neuropathy, Can Ebru Beki̇rcan-Kurt, Doruk Arslan, Naz Güleray, Sevi̇m Erdem-Özdamar, Burcu Balci-Hayta, Ersi̇n Tan Dec 2025

Diagnostic Yield Of Clinical Exome Sequencing In Patients With Suspected Hereditary Neuropathy, Can Ebru Beki̇rcan-Kurt, Doruk Arslan, Naz Güleray, Sevi̇m Erdem-Özdamar, Burcu Balci-Hayta, Ersi̇n Tan

Turkish Journal of Medical Sciences

Background/aim: Hereditary neuropathies exhibit significant genetic heterogeneities, often making molecular diagnosis challenging. Clinical Exome Sequencing (CES) allows the simultaneous evaluation of a wide range of candidate genes, and can be considered an efficient approach to identifying underlying genetic causes. The present study assesses the diagnostic utility of CES in patients with clinically suspected hereditary neuropathy.

Materials and methods: Included in the study were 21 patients with clinically suspected hereditary neuropathy who underwent CES. DNA samples were isolated from peripheral blood and subjected to CES on an Illumina NextSeq 2000 system, while a bioinformatics analysis and variant interpretation were performed using …


Comparison Of Spatiotemporal And Arm Swing Characteristics Of Gait Between Patients With Copd And Healthy Controls, Hi̇daye Yamikan, Ni̇hat Özgören, Serdar Aritan, Oğuz Karcioğlu, Aynur Demi̇rel Dec 2025

Comparison Of Spatiotemporal And Arm Swing Characteristics Of Gait Between Patients With Copd And Healthy Controls, Hi̇daye Yamikan, Ni̇hat Özgören, Serdar Aritan, Oğuz Karcioğlu, Aynur Demi̇rel

Turkish Journal of Medical Sciences

Background/aim: Impairments in spatiotemporal gait characteristics have been observed in patients with chronic obstructive pulmonary disease (COPD). However, arm swing characteristics—a fundamental component of gait that play a key role in maintaining gait stability and energy efficiency—have been largely overlooked. This study aimed to investigate the spatiotemporal characteristics of gait, together with arm swing patterns, in patients with COPD.

Materials and methods: A total of 20 patients with COPD (aged 40–65 years) and 20 age- and sex-matched healthy controls (HC) participated in this cross-sectional study. Spatiotemporal gait characteristics and arm swing data were recorded using a motion capture system equipped …


Exploring Gender Differences In The Impact Of Sleep And Fatigue On Disease Severity In Rheumatoid Arthritis: A Moderated Mediation Model, Musa Salmanoğlu, Habi̇p Yilmaz Dec 2025

Exploring Gender Differences In The Impact Of Sleep And Fatigue On Disease Severity In Rheumatoid Arthritis: A Moderated Mediation Model, Musa Salmanoğlu, Habi̇p Yilmaz

Turkish Journal of Medical Sciences

Background/aim: Rheumatoid arthritis (RA) is often accompanied by fatigue and sleep disturbances, which aggravate disease severity. Gender differences in these interrelationships remain insufficiently understood. This study aimed to examine whether fatigue mediates the association between sleep quality and disease severity in RA, and whether these pathways differ by gender.

Materials and methods: A single-center study was conducted with 68 RA patients (55.9% female). Disease severity was assessed using the Routine Assessment of Patient Index Data-3, fatigue using the Bristol Rheumatology Fatigue Multidimensional Questionnaire, and sleep quality using the Pittsburgh Sleep Quality Index (PSQI).

Results: Fatigue significantly mediated the relationship between …


Moltkia Coerulea Extracts Alleviate Caspase-3 Activity Via Reducing Oxidative Stress In Lps-Induced Neurotoxicity In Bv-2 Cells, Asli Can Ağca, Derya Altay, Hüdaverdi̇ Kul, Asli F. Ceylan, Betül Sever Yilmaz Dec 2025

Moltkia Coerulea Extracts Alleviate Caspase-3 Activity Via Reducing Oxidative Stress In Lps-Induced Neurotoxicity In Bv-2 Cells, Asli Can Ağca, Derya Altay, Hüdaverdi̇ Kul, Asli F. Ceylan, Betül Sever Yilmaz

Turkish Journal of Medical Sciences

Background/aim: Moltkia coerulea, a medicinal plant traditionally used for its neuroprotective properties, contains diverse phenolic compounds. However, its mechanisms of action in neuroinflammation remain unclear. We hypothesized that extracts of M. coerulea may protect microglial cells from lipopolysaccharide (LPS)-induced oxidative stress and apoptosis by modulating reactive oxygen species (ROS) and caspase-3 activity.

Materials and methods: Aqueous and methanol extracts (5–50 μg/mL) were tested in BV-2 microglial cells. Cell viability was assessed by MTT assay, while ROS generation and caspase-3 activity were measured using fluorescence-based kits. The effective concentration (10 μg/mL) was selected for mechanistic assays based on viability data and …


Clinical Characteristics Of Graves’ Disease Following Covid-19 Infection Or Vaccination: A Multicenter Case-Control Study, Asena Gökçay Canpolat, Kemal Ağbaht, Ati̇lla Hali̇l Elhan, Mustafa Cesur, Zi̇ynet Alphan Uç, Seçki̇n Akçay, Hülya Iliksu Gözü, Mehmet Aşik, Hayri̇ Bostan, Beki̇r Ucan, Tugçe Şah Ünal, Merve Yilmaz, Ayşe Kubat Üzüm, Mehmet Çağri Ünal, Cuneyd Anil, Ümmü Mutlu, Nurcan İnce, Sevgül Faki, Güven Bari̇s Cansu, Mehmet Sercan Erturk, Ayten Oguz, Mustafa Aydemi̇r, Şefi̇ka Burçak Polat, Oya Topaloğlu, Reyhan Ersoy, Beki̇r Çakir, Ayşe Ok, Ersen Karakiliç, Muhi̇tti̇n Yalçin, Yusuf Kayhan, Kader Ugur, Di̇lek Yazici, Alper Gürlek, Tülay Omma, Emre Serdar Saygili, Adnan Batman, Banu Kara, Göknur Yorulmaz, Bahri Evren, Füsun Baloş Törüner, Bülent Okan Yildiz, Murat Erdogan Fai̇k, Faruk Alagol, Erman Çakal, Mustafa Şahi̇n Dec 2025

Clinical Characteristics Of Graves’ Disease Following Covid-19 Infection Or Vaccination: A Multicenter Case-Control Study, Asena Gökçay Canpolat, Kemal Ağbaht, Ati̇lla Hali̇l Elhan, Mustafa Cesur, Zi̇ynet Alphan Uç, Seçki̇n Akçay, Hülya Iliksu Gözü, Mehmet Aşik, Hayri̇ Bostan, Beki̇r Ucan, Tugçe Şah Ünal, Merve Yilmaz, Ayşe Kubat Üzüm, Mehmet Çağri Ünal, Cuneyd Anil, Ümmü Mutlu, Nurcan İnce, Sevgül Faki, Güven Bari̇s Cansu, Mehmet Sercan Erturk, Ayten Oguz, Mustafa Aydemi̇r, Şefi̇ka Burçak Polat, Oya Topaloğlu, Reyhan Ersoy, Beki̇r Çakir, Ayşe Ok, Ersen Karakiliç, Muhi̇tti̇n Yalçin, Yusuf Kayhan, Kader Ugur, Di̇lek Yazici, Alper Gürlek, Tülay Omma, Emre Serdar Saygili, Adnan Batman, Banu Kara, Göknur Yorulmaz, Bahri Evren, Füsun Baloş Törüner, Bülent Okan Yildiz, Murat Erdogan Fai̇k, Faruk Alagol, Erman Çakal, Mustafa Şahi̇n

Turkish Journal of Medical Sciences

Background/aim: To describe Graves’ Disease (GD) associated with COVID-19 infection (COVID) or its vaccines (VAC) and to compare the clinical presentations, laboratory parameters, and short-term clinical course of the disease among different etiology groups (COVID, VAC, and GD control).

Materials and methods: Included in this multicenter matched case–control, retrospective cohort study were 239 patients with newly diagnosed (n = 196) or recurrent GD (n = 43) associated with COVID (n = 79) or VAC (n = 160). Each case was matched (1:1) with a control who had been diagnosed with GD prior to COVID.

Results: The median age of the …


Nickel Toxicity To Safflower Seed Germination And Seedling Morphoanatomy, Uğurcan Baran, Sude Tanik, Mert Can Vardar, Güray Ülger, Ahmet Aksoy Nov 2025

Nickel Toxicity To Safflower Seed Germination And Seedling Morphoanatomy, Uğurcan Baran, Sude Tanik, Mert Can Vardar, Güray Ülger, Ahmet Aksoy

Turkish Journal of Botany

The safflowers (Carthamus tinctorius L. cv Olas) grown hydroponically under nickel (Ni) stress were examined in this study. T he effects of 0, 0.75, 1, 3, 5, 10, and 15 mM Ni on seed germination rate, protein, and pigment content of germinating seeds were investigated. Also, the toxicity of 0.75 mM Ni on plant growth, malondialdehyde (MDA) amount, and anatomy of 21-day-old safflower seedlings were studied. Ni adversely affected the germination rate, radicle length, protein, and pigment content of safflower seeds, particularly when higher than 3 mM. It also negatively affected the biomass production, plant length, leaf number, and MDA …


Protective Role Of Salicylic Acid Against Abiotic Stresses In Horticultural Crops: A Review, Faisal Hayat, Xiaoyun Zhang, Mohammed Alyafei, Fareeha Shireen, Ummara Khan, Sumeera Asghar, Sezai̇ Erci̇şli̇, Karthishwaran Kandhan, Mohamed S. Sheteiwy, Yali Zhang, Xiaoyan Lu Nov 2025

Protective Role Of Salicylic Acid Against Abiotic Stresses In Horticultural Crops: A Review, Faisal Hayat, Xiaoyun Zhang, Mohammed Alyafei, Fareeha Shireen, Ummara Khan, Sumeera Asghar, Sezai̇ Erci̇şli̇, Karthishwaran Kandhan, Mohamed S. Sheteiwy, Yali Zhang, Xiaoyan Lu

Turkish Journal of Botany

Environmental stressors such as drought, floods, salinity, extreme temperatures, and heavy metal toxicity are major threats to horticultural plants because they disrupt plant physiological mechanisms, leading to reduced yield and quality. Salicylic acid (SA) is a plant hormone that regulates various physiological and biochemical functions in plants. Moreover, it regulates hormonal balance, enhances the absorption of essential nutrients, promotes photosynthesis and the production of antistress compounds, and improves stress resistance. This comprehensive review explains several physiological and biochemical activities that are affected by SA under stressful conditions, such as stomatal regulation, antioxidant defense systems, osmotic adjustment and gene expression regulation. …


Biochar Derived From Different Sources Ameliorates The Phytochemical And Physiological Characteristics Of Foxtail Millet (Setaria Italica) Under Water Stress, Mohammad Keshavarz, Ehsan Bijanzadeh, Hamid Reza Boostani Nov 2025

Biochar Derived From Different Sources Ameliorates The Phytochemical And Physiological Characteristics Of Foxtail Millet (Setaria Italica) Under Water Stress, Mohammad Keshavarz, Ehsan Bijanzadeh, Hamid Reza Boostani

Turkish Journal of Botany

Organic material, such as biochar, can improve soil fertility and crop yield under water stress. A pot experiment was conducted to consider the effects of biochar on the pigment content, enzyme activity, physiological characteristics, and nutrient uptake of foxtail millet under water stress. Plants were tested under normal, mild, and severe irrigation regimes (100%, 75%, and 50% field capacity, respectively) using different biochar sources (licorice root biochar (LRB), cow manure biochar (CMB), cotton residue biochar (CRB), and municipal waste biochar (MWB)) and a control without fertilizer. Under severe water stress, the chlorophyll a content and total chlorophyll increased by 137.3% …


Cover And Conents Nov 2025

Cover And Conents

Turkish Journal of Botany

No abstract provided.


Comparative Cytogenetics Study Via Fluorescent Chromosome Banding Of Three Solanum L. Species, Mona Abd Elgawad, Rim Hamdy, Ibrahim El Garf, Amany Sallam Abdo Nov 2025

Comparative Cytogenetics Study Via Fluorescent Chromosome Banding Of Three Solanum L. Species, Mona Abd Elgawad, Rim Hamdy, Ibrahim El Garf, Amany Sallam Abdo

Turkish Journal of Botany

Solanum L. subg. Solanum sect. Solanum has a wide distribution in Egypt with multiple overlapping morphological features, rendering the taxonomy of the Solanum nigrum complex difficult at the species level. This study focused on the S. nigrum complex, which consists of S. nigrum L., S. sinaicum Boiss., and S. villosum Mill. Cytogenetic characterization can provide additional taxonomic data and can be used to evaluate genetic diversity at the species level. We performed karyotype analysis of 3 Egyptian species for the first time by studying fluorescence banding patterns via 4’6-diamidino-2-phenylindole (DAPI) and chromomycin A3 (CMA). The three species vary noticeably in …


Conulariids From The Late Serpukhovian (Late Mississippian) Carbonate Deposits Of Ne Europe, Andrey Vladimirovich Zhuravlev, Andrey Vladimirovich Erofeevsky, Yadviga Alfredovna Vevel Nov 2025

Conulariids From The Late Serpukhovian (Late Mississippian) Carbonate Deposits Of Ne Europe, Andrey Vladimirovich Zhuravlev, Andrey Vladimirovich Erofeevsky, Yadviga Alfredovna Vevel

Turkish Journal of Earth Sciences

The Late Mississippian (late Serpukhovian) conulariids are described from the deep carbonate platform facies of the northern Cis-Urals. The fossil assemblage also includes brachiopods, foraminifers, ostracods, conodonts, Sphenothallus (?), crinoids, and rare bryozoan and fish remains. Conulariid remains are represented by isolated rods and articulated thecae of Paraconularia aff. subulata (Hall). A carbon isotope study suggests that the conulariids were low-level consumers, likely feeding on seston.


Morphological Variability And Systematics Of Ponto-Caspian Cladocerans Of The Genus Cercopagis Sars, 1897 (Branchiopoda: Onychopoda: Cercopagidae), Larisa F. Litvinchuk, Spartak N. Litvinchuk Nov 2025

Morphological Variability And Systematics Of Ponto-Caspian Cladocerans Of The Genus Cercopagis Sars, 1897 (Branchiopoda: Onychopoda: Cercopagidae), Larisa F. Litvinchuk, Spartak N. Litvinchuk

Turkish Journal of Zoology

In recent decades, significant changes have occurred in the composition of zooplankton, especially in the Ponto-Caspian Basin. An important component of zooplankton in this region is cladocerans of the genus Cercopagis. However, the introduction of invasive species means that many species of this genus have probably become extinct. Because their disappearance molecular study of these organisms is no longer possible. Therefore, a comparative analysis of morphological variability has become more important. We studied the morphological variability of all 12 currently known species of the genus. Samples from the Caspian, Azov, Black, and Baltic Seas were analyzed. The number of species …


Rapid Epigenetic Response To Salinity Stress In An Invasive Mussel, Mytilus Galloprovincialis, Andrzej Furman, Açelya Eren, İbrahi̇m Raşi̇t Bi̇lgi̇n, Hati̇ce Aygün Karaçay Nov 2025

Rapid Epigenetic Response To Salinity Stress In An Invasive Mussel, Mytilus Galloprovincialis, Andrzej Furman, Açelya Eren, İbrahi̇m Raşi̇t Bi̇lgi̇n, Hati̇ce Aygün Karaçay

Turkish Journal of Zoology

The Mediterranean blue mussel (Mytilus galloprovincialis) is a well-known invasive species recognized for its remarkable ability to tolerate a wide range of environmental conditions. Here, we investigated DNA methylation changes in M. galloprovincialis exposed to a rapid water salinity decrease. Methylation profiles in M. galloprovincialis were recorded before salinity stress was applied (at 35‰), and then at 3, 9 and 24 h following the stress (at 25‰). We monitored these changes using the methylation-sensitive amplification polymorphism (MSAP) method. Methylation levels continued to vary over the 24 h period following stress exposure, indicating that the underlying physiological processes may have changed …


Phylogenetics Of Cyrtodactylus In West Nusa Tenggara: A New Distribution Record Of Cyrtodactylus Jatnai From Lombok Island And A Cryptic Species From Sumbawa Island, Sandra Rafika Devi, Rury Eprilurahman, Tuty Arisuryanti, Yuliadi Zamroni, Imran Sadewo, Windi Edriyanti, Maulana Faiz Ilham Kholiq, Evelyn Elvira Nov 2025

Phylogenetics Of Cyrtodactylus In West Nusa Tenggara: A New Distribution Record Of Cyrtodactylus Jatnai From Lombok Island And A Cryptic Species From Sumbawa Island, Sandra Rafika Devi, Rury Eprilurahman, Tuty Arisuryanti, Yuliadi Zamroni, Imran Sadewo, Windi Edriyanti, Maulana Faiz Ilham Kholiq, Evelyn Elvira

Turkish Journal of Zoology

Cyrtodactylus is one of the most diverse vertebrates of the Gekkonidae family, first described by Gray in 1827 and widely distributed in Asia, Northern Australia, and the Pacific Islands including Wallacea. The biodiversity in West Nusa Tenggara—a region in Wallacea—has been underestimated despite high fauna endemicity. Conservation strategies are needed to maintain the stability of Cyrtodactylus populations in their habitat. Therefore, this study aims to enhance the understanding of cryptic species and potential new distribution records of the genus Cyrtodactylus in West Nusa Tenggara. Molecular character identification was carried out by isolating the ND2 gene in liver tissue using polymerase …


Cover And Contents Nov 2025

Cover And Contents

Turkish Journal of Zoology

No abstract provided.


The Effects Of Montelukast Sodium On Some Biological And Biochemical Aspects, Dna Damage In Drosophila Melanogaster Adults, Ci̇hat Çeli̇k Nov 2025

The Effects Of Montelukast Sodium On Some Biological And Biochemical Aspects, Dna Damage In Drosophila Melanogaster Adults, Ci̇hat Çeli̇k

Turkish Journal of Zoology

Montelukast sodium (MS) is a leukotriene receptor antagonist and used clinically as an antiasthma agent. MS has been hypothesized to have adverse effects in insects. To test this hypothesis, MS was added to the artificial diet of the fruit fly Drosophila melanogaster Meigen (Diptera: Drosophilidae) at different concentrations (1200, 1600, 2000, and 2400 mg/L) under laboratory conditions. The effects of MS on the survival rate and development time of D. melanogaster, as well as its effects on malondialdehyde (MDA) levels and cytochrome P450 monooxygenase (CYP450) enzyme activity in adults were investigated. The genotoxic effect of MS in whole adults was …


Ecotoxicological Assessment Of A Sunscreen-Derived Pollutant, Benzophenone-2, On Freshwater Fish (Labeo Rohita), Mina Jamil, Sajid Abdullah, Maham Riaz, Sana Aziz Nov 2025

Ecotoxicological Assessment Of A Sunscreen-Derived Pollutant, Benzophenone-2, On Freshwater Fish (Labeo Rohita), Mina Jamil, Sajid Abdullah, Maham Riaz, Sana Aziz

Turkish Journal of Zoology

Ultraviolet filters (UVFs) are constituents of skincare products that protect skin against UV ray damage, such as suntan, sunburn, and skin tumors. Due to their ability to biotransform, UVFs are considered emerging pollutants. Benzophenone-2 (BP-2), with a yellowish crystalline appearance, is one of the widely used UVFs in skincare products. It enters the aquatic environment by washing off the skin during swimming and recreational activities and becomes hazardous to aquatic life due to its lipophilicity and bioaccumulative potential. This study was designed to evaluate the acute and chronic toxicity of BP-2 for the freshwater fish Labeo rohita. For acute toxicity, …


Bathyal Gastropod (Mollusca) Species From The Turkish Levantine And Aegean Seas, Bi̇lal Öztürk Nov 2025

Bathyal Gastropod (Mollusca) Species From The Turkish Levantine And Aegean Seas, Bi̇lal Öztürk

Turkish Journal of Zoology

This study assigns 35 gastropod specimens and 23 shells collected from two sites on the Turkish Levantine and Aegean coasts at depths of 432 and 702 m, respectively, to 13 species. Among the species identified, Alvania subsoluta (Aradas, 1847), Protatlanta souleyeti (Smith, 1888), Pagodula echinata (Kiener, 1839), Pleurotomella gibbera Bouchet & Warén, 1980, Ringicula gianninii Nordsieck, 1974 and Diaphana marshalli (Sykes, 1904) are new records for the Turkish molluscan fauna; Anatoma aspera (Philippi, 1844) and Acteon monterosatoi Dautzenberg, 1889 are new records for the Levantine coast of Türkiye; and Crenilabium exile (Jeffreys, 1870) is a new record for the Turkish …


A Feature-Free Deep Learning Approach For Midair Hand Gesture Recognition From Surface Electromyogram (Semg) Data, Yasir Altaf, Abdul Wahid, Mudasir Manzoor Kirmani Nov 2025

A Feature-Free Deep Learning Approach For Midair Hand Gesture Recognition From Surface Electromyogram (Semg) Data, Yasir Altaf, Abdul Wahid, Mudasir Manzoor Kirmani

Turkish Journal of Electrical Engineering and Computer Sciences

Midair hand gesture recognition plays a crucial role in applications such as sign language recognition and human-computer interaction, particularly for supporting individuals with partial or complete hearing loss. However, recognizing gestures in midair remains challenging due to the rapid and complex nature of hand movements. To address this, noninvasive techniques like surface electromyography (sEMG)—which captures muscle activity through sensors placed on the skin—have gained attention. sEMG provides rich time-series data that reflect both spatial and temporal muscle dynamics. In this study, we propose a deep learning architecture that combines convolutional neural networks (CNNs) and recurrent neural networks (RNNs) to classify …


Monotone Positive Solutions Of Impulsive Differential Equations Asymptotic To Nonprincipal Solutions, Si̇bel Doğru Akgöl, Ağacik Zafer Nov 2025

Monotone Positive Solutions Of Impulsive Differential Equations Asymptotic To Nonprincipal Solutions, Si̇bel Doğru Akgöl, Ağacik Zafer

Turkish Journal of Mathematics

This study investigates the asymptotic behavior of monotone positive solutions for a general class of nonlinear second-order impulsive differential equations. By employing the principal and nonprincipal solutions of the associated homogeneous equation, we establish the existence of a monotone positive solution asymptotic to a nonprincipal solution at infinity. To achieve this, we also prove a compactness criterion for an effective use of Schauder’s fixed-point theorem. Under suitable conditions, similarly to the classical case, it is demonstrated that a monotone positive solution asymptotic to a nonprincipal solution exists. A concrete example is given to illustrate the results.


Tumor-Specific Cytotoxicity Of Pyrazole-Based Chalcone Derivatives In Human Oral Squamous Cell Carcinoma Cell Lines, Mehtap Tuğrak Sakarya, Hali̇se İnci̇ Gül, Hiroshi Sakagami, Junko Nagai, Yoshihiro Uesawa, Kenjiro Bandow Oct 2025

Tumor-Specific Cytotoxicity Of Pyrazole-Based Chalcone Derivatives In Human Oral Squamous Cell Carcinoma Cell Lines, Mehtap Tuğrak Sakarya, Hali̇se İnci̇ Gül, Hiroshi Sakagami, Junko Nagai, Yoshihiro Uesawa, Kenjiro Bandow

Turkish Journal of Biology

Background/aim: Pyrazole-based chalcone hybrids are notable in medicinal chemistry for their potential biological activity, although their tumor-specific cytotoxicity and mechanisms remain unknown in OSCC cells. This first study of pyrazole-chalcone hybrids in OSCC cells explores the tumor-selective cytotoxic effects and underlying cell death mechanisms triggered by a series of 10 newly synthesized pyrazole-based compounds (MS1MS10) in OSCC cell lines. Material and methods: The cytotoxic effects of the compounds were assessed using the MTT assay on four human OSCC cell lines and three types of normal human oral cells. The tumor-selectivity index (TS) and potency-selectivity expression (PSE) were calculated, and active …


Cover And Contents Oct 2025

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Microplastic Pollution In Marine Ecosystems: Sources, Impacts, Andstakeholder-Based Solutions, Seren Acarer Arat Oct 2025

Microplastic Pollution In Marine Ecosystems: Sources, Impacts, Andstakeholder-Based Solutions, Seren Acarer Arat

Turkish Journal of Biology

Microplastics (MPs) are plastic particles of anthropogenic origin with a size range of 1–5000 μm. Marine MP pollution is increasingly recognized as a significant global environmental challenge. MPs, which enter marine ecosystems from land- and marine-based sources, pose physical, chemical, and biological risks due to the adsorption of various pollutants and the formation of biofilm layers. MPs are found in various organisms from lower to higher trophic levels of the marine food web. The negative effects of MPs on marine organisms depend on their abundance, their characteristics, and the exposure time of organisms to MPs. MPs can adversely affect various …


Application Of Biological And Green Nanomaterials In Wastewater Treatment: Techniques For The Effective Removal Of Dyes, Heavy Metals, And Organic Pollutants, Emi̇ne Sena Kazan Kaya, Zeynep Ci̇ğeroğlu, Tansel Kemerli̇ Kalbaran, Başak Temur Ergan, Zeynep Mi̇ne Şenol, Meral Yildirim Yalçin Oct 2025

Application Of Biological And Green Nanomaterials In Wastewater Treatment: Techniques For The Effective Removal Of Dyes, Heavy Metals, And Organic Pollutants, Emi̇ne Sena Kazan Kaya, Zeynep Ci̇ğeroğlu, Tansel Kemerli̇ Kalbaran, Başak Temur Ergan, Zeynep Mi̇ne Şenol, Meral Yildirim Yalçin

Turkish Journal of Biology

Background/aim: Wastewater from industrial, agricultural, and residential sources poses significant environmental and public health risks due to the presence of dyes, heavy metals, and organic pollutants. Conventional treatment methods are often inadequate for the complete removal of these pollutants. Therefore, the development of sustainable, environmentally friendly, and highly efficient treatment techniques has become increasingly important. The aim of this review is to evaluate the application of biological and green nanomaterials in wastewater treatment and to compare their effectiveness against different types of pollutants (dyes, heavy metals, and organics).

Materials and methods: This review provides detailed information on the removal of …


A Review Of Deep Learning Architectures For Plant Disease Detection​, Yasi̇n Kaya, Ercan Gürsoy Oct 2025

A Review Of Deep Learning Architectures For Plant Disease Detection​, Yasi̇n Kaya, Ercan Gürsoy

Turkish Journal of Biology

Background/aim: The rapid advancement of deep learning (DL) has revolutionized plant disease detection by enabling highly accurate, image-based diagnostic solutions. This review provides a comprehensive synthesis of DL-based methodologies for plant disease detection, systematically structured around the key stages of the modeling pipeline, encompassing data acquisition, preprocessing, augmentation, classification, detection, segmentation, and deployment.

Materials and methods: The review focuses on evaluating convolutional neural network (CNN) architectures such as VGG, ResNet, EfficientNet, and DenseNet across diverse experimental contexts. Classification strategies are categorized according to their integration of visualization techniques (e.g., saliency maps, Grad-CAM) to enhance model interpretability, emphasizing the pivotal role …


Green Carbon Dots In The Era Of Ai: Sustainable Synthesis, Intelligent Drug Delivery, Advanced Diagnostics, And Bioimaging, Emi̇ne Sezer, Fulden Ulucan Karnak, Si̇nan Akgöl Oct 2025

Green Carbon Dots In The Era Of Ai: Sustainable Synthesis, Intelligent Drug Delivery, Advanced Diagnostics, And Bioimaging, Emi̇ne Sezer, Fulden Ulucan Karnak, Si̇nan Akgöl

Turkish Journal of Biology

Background/aim: Green carbon dots (GCDs) are a rapidly developing class of nanomaterials that are revolutionizing various scientific disciplines due to their unique optical properties, low toxicity, and sustainable synthesis. This review offers a comprehensive roadmap for the field, emphasizing the synergy between GCDs and artificial intelligence (AI).

Materials and methods: We begin by detailing the sustainable synthesis of GCDs, highlighting green chemistry principles and the transformative role of AI in optimizing their production. Subsequently, we explore the critical characterization of GCDs, including their structural, optical, and biocompatibility assessment. The core of this study explores the diverse biomedical applications of GCDs, …


Applications Of Transfer Learning In Sunflower Disease Detection: Advances, Challenges, And Future Directions, Yonis Gulzar Oct 2025

Applications Of Transfer Learning In Sunflower Disease Detection: Advances, Challenges, And Future Directions, Yonis Gulzar

Turkish Journal of Biology

Background/aim: Sunflower (Helianthus annuus) is a crop of high economic and nutritional importance that continues to suffer significant yield losses due to foliar diseases. Traditional image-based and laboratory detection techniques remain limited by subjectivity, cost, and scalability. Transfer learning (TL) has recently emerged as an effective approach to overcoming these challenges involving the reuse of pretrained deep models for plant pathology tasks. Presented here is a systematic examination of recent TL-based studies on sunflower disease classification to identify prevailing trends, research gaps, and future opportunities.

Materials and methods: A structured Scopus query was employed to retrieve peer-reviewed articles published between …


Principles Of Environmentally Sustainable Agriculture For Building Resilient And Resource-Efficient Food Systems, Ramazan Çakmakçi, Songül Çakmakçi, Muhammet Fati̇h Çakmakçi Oct 2025

Principles Of Environmentally Sustainable Agriculture For Building Resilient And Resource-Efficient Food Systems, Ramazan Çakmakçi, Songül Çakmakçi, Muhammet Fati̇h Çakmakçi

Turkish Journal of Biology

As the demand for greater quantities of higher-quality food grows with population expansion, climate change, urbanization, and unsustainable agricultural practices accelerate the loss of arable land, ultimately threatening agricultural sustainability. Population growth necessitates a transition to nutritious, safe, and healthy food production systems that ensure higher yields, less reduced waste, improved social outcomes, and the integration of economic, social, and environmental sustainability principles. Urgent global challenges such as resource depletion, biodiversity loss, and climate change necessitate the protection of ecosystems and the sustainable use of natural resources. Agricultural systems must enhance food production and supply productivity, strengthen system resilience, and …