Unsal, Velid
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Unsal, V.
Velid Unsal
Ünsal, Velid
Unsal V.
Velid Unsal
Ünsal, Velid
Unsal V.
Job Title
Doçent
Email Address
velidunsal@gmail.com
Main Affiliation
Department of Nutrition and Dietetics/ Beslenme ve Diyetetik Bölümü
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Website
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Scopus Author ID
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WoS Researcher ID
Sustainable Development Goals
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
2
ZERO HUNGER
0
Research Products
5
GENDER EQUALITY
0
Research Products
6
CLEAN WATER AND SANITATION
1
Research Products
13
CLIMATE ACTION
0
Research Products
10
REDUCED INEQUALITIES
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
15
LIFE ON LAND
0
Research Products
3
GOOD HEALTH AND WELL-BEING
14
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
14
LIFE BELOW WATER
3
Research Products
4
QUALITY EDUCATION
0
Research Products
1
NO POVERTY
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
Documents
45
Citations
880
h-index
11
Documents
44
Citations
719
Scholarly Output
49
Articles
47
Views / Downloads
198/4996
Supervised MSc Theses
1
Supervised PhD Theses
0
WoS Citation Count
649
Scopus Citation Count
757
WoS h-index
8
Scopus h-index
9
Patents
0
Projects
3
WoS Citations per Publication
13.24
Scopus Citations per Publication
15.45
Open Access Source
37
Supervised Theses
1
| Journal | Count |
|---|---|
| Folia Medica | 5 |
| Andrologia | 3 |
| BMC Chemistry | 2 |
| Turkish Journal of Biochemistry | 2 |
| Turkish Journal of Biochemistry-Turk Biyokimya Dergisi | 2 |
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49 results
Scholarly Output Search Results
Now showing 1 - 10 of 49
Article Citation - Scopus: 1Evaluation of Oxidative Stress Biomarkers in Patients with Henoch-Schönlein Purpura(Folia Medica, 2021) Soylemez, Kadir; Temiz, Fatih; Dalkıran, Tahir; Kandur, Yasar; Kurutas, Ergul Belge; Unsal, Velid; Oner, ErkanIntroduction: Henoch-Schönlein Purpura (HSP) is a systemic vasculitic syndrome characterized by non-thrombocytopenic purpura, arthritis/arthralgia, abdominal pain, and glomerulonephritis. The pathogenesis of HSP has not been clearly identified. Oxidative damage has a role in the pathogenesis of most cases. Aim: This study aimed to evaluate changes of oxidative stress by studying parameters like superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) in an attempt to identify the role of oxidative stress in HSP from another perspective. Materials and methods: This study enrolled 23 pediatric patients (ten girls and thirteen boys) diagnosed with HSP who were under follow-up at Sutcu Imam University School of Medicine Department of Pediatrics between 2014 and 2016 and twenty healthy children as the control group. The parents of all subjects gave informed consent to participate in the study. In the HSP group, the beginning season of the illness and the systemic involvement during follow-up were determined. Blood specimens were obtained at presentation before any treatment was started. SOD, CAT activities, and MDA values in erythrocyte and plasma samples were compared between the patient group and the healthy children. Results: Twenty-three patients with HSP (13 males, 10 females) and 20 healthy children participated in this study. The mean age of the HSP cases was 8.21±3.78 years (range 2-16 years) and of the controls was 8.6±4.2 (range 3-14 years). The mean MDA value was 2.95±0.71 nmol/ml in the patient group and 2.67±0.66 nmol/ml in the control group (p=0.787). The mean level of the CAT enzyme was 1.32±0.35 U/g Hb in the patient group and 7.8±1.74 U/g Hb in the control group (p=0.001). The mean levels of the SOD enzyme were 3.06±0.85 U/g Hb in the patient group and 0.97±0.36 U/g Hb in the control group (p=0.001). Conclusions: Although high MDA levels support the role of lipid peroxidation in the pathogenesis of HSP, statistical significance was not reached owing to a limited number of our patients. The reduced CAT enzyme activity is consistent with the findings of previous reports. This finding supports the notion that oxidative stress can play a role in the pathogenesis of HSP.Master Thesis Akut yüksek doz arsenik maruziyetinin insan göbek damarı endotel hücrelerinde(HUVEC) oluşturduğu sitotoksisite, oksidatif stres ve apoptozise karşı trans-chalcone uygulamasının koruyucu etkinliğinin araştırılması(Mardin Artuklu Üniversitesi, 2023) Gözüoğlu, Mustafa; Unsal, VelidBu çalışma, İnsan Umblikal Ven Endotel Hücreleri (HUVEC), arsenik maruziyeti sonucunda hücre hasarı uyarılacaktır. HUVEC hücrelerinde arsenik kaynaklı hücresel hasarı ve bu hasara karşı Trans-chalcone'nun olası koruyucu rolünü belirlemek amacıyla yapılacaktır. Trans-chalcone'nın hasara uğramış hücreler üzerindeki sitotoksisite, apoptotizis, oksidatif strese etkileri araştırılacaktır. Arsenik ile indükleniş hücreler Trans-chalcone ile tedavi edilerek, hücre canlılığı, sitotoksisite, Oksidatif stres parametreleri ve DNA hasarı in vitro olarak gösterilecektir. Arsenik büyük ölçüde çevreye yayılan ve yer kabuğunda metalloid olarak biriken toksik bir elementtir. Arsenik ve türevleri içme suyunda, besinlerde, toprak ve hava partiküllerinde bulunmaktadır. Özellikle içme suyu arsenik maruziyetinin en yaygın kaynağıdır. Arsenik Uluslararası Kanser Araştırmaları Ajansı tarafından grup I insan karsinojeni olarak sınıflandırılmıştır. Arseniğe maruziyet; akciğer, kan, cilt kanseri ve çeşitli cilt lezyonları ile ilişkilidir.Article Citation - WoS: 34Citation - Scopus: 32Investigation of oxidant/antioxidant and anti-inflammatory effects of apigenin on apoptosis in sepsis-induced rat lung(Journal of Biochemical and Molecular Toxicology, 2021) Unsal, Velid; Çiçek, Mustafa; Doganer, Adem; Demir, MehmetWe suppose that apigenin may inhibit the cellular process of sepsis-induced lung injury, which is considered to be a major cause of morbidity and mortality, and may improve inflammation and oxidative stress. The aim of this study was to investigate the potential protective effect of apigenin in a rat model of polymicrobial sepsis. Eight groups consisting of a total of 64 female Wistar albino rats were used for this study. Pro-inflammatory (TNF-α, IL-1-β, IL-6) and anti-inflammatory (TGF-β, IL-10) cytokine levels were measured with the enzyme-linked immunosorbent assay technique, oxidant/antioxidants parameters were measured using the spectrophotometric method and Bax and Caspase-3 immunohistochemical methods. TNF-α, TGF-β, IL-1β, and IL-6 levels significantly increased in the sepsis-induced group than in the control groups, while IL-10 levels decreased. Lipid peroxidase (LPO), an oxidative stress marker, increased, while the antioxidant defense parameters of superoxide dismutase (SOD), catalase (CAT) activities, glutathione (GSH) levels decreased. Although Bax and Caspase-3 immunoreactivity and H score levels significantly increased in the sepsis group, significant decreases were found in the groups treated with apigenin. In conclusion, we are of the opinion that apigenin treatment improves lung injury by inhibiting oxidative stress and inflammatory cell damage.Article Citation - WoS: 1Clinical and Cytokine Profile of Children With COVID-19: A Report From Turkey(Cureus, 2023) Unsal, Velid; Tahir Dalkıran, Emine M Kara, Velid Ünsal, Sadık Yurttutan, Sevcan İpek, Besra Dağoğlu, Yaşar KandurBackground We aimed to analyze the expression of infection-related biomarkers and inflammatory cytokines in laboratory-confirmed cases and compare the differences between clinically severe and non-severe ones. Method We randomly selected 35 patients who were hospitalized with the diagnosis of coronavirus disease 2019 (COVID-19). Blood serum was obtained at the time of admission to the hospital, on the third to the fifth day, and at the time of discharge. Result The median age of our patients was 56.5±69.7 months (range: 1-205 months). The mean pro-B-type natriuretic peptide (pro-BNP) was significantly higher at the time of admission than on the third to the fifth day of illness. The mean pro-B-type natriuretic peptide levels at three time points were significantly higher in patients with severe cases than in mild-moderate cases. However, there was no significant difference between the clinical severity with regard to the cytokine levels at disease onset and recovery. Conclusion In the study, it was shown that cytokines play an important role in the pathogenesis of COVID-19. Therefore, it may be beneficial to use agents such as tocilizumab in the treatment.Article Citation - WoS: 6Citation - Scopus: 6Etomidate Alleviates Ovarian Ischemia-Reperfusion Injury in Rats(Turkish Assoc Trauma Emergency Surgery, 2024) Katar, Muzaffer; Gevrek, Fikret; Unsal, Velid; Tapar, Hakan; Karaman, Tugba; Karaman, Serkan; Balta, MehtapBACKGROUND: This study investigates the protective effects of etomidate against oxidative damage in an experimental model of ovarian ischemia-reperfusion injury. METHODS: A total of 24 female rats were randomized into three groups. Group 1 served as the control. Group 2 underwent an ovarian torsion/detorsion procedure. Group 3 underwent similar procedures as Group 2; additionally, 4 mg/kg of etomidate was administered intraperitoneally 30 minutes before ovarian detorsion. Blood samples were analyzed for lipid peroxidation, pro-inflamma- tory cytokine levels, and antioxidant enzyme activity.Furthermore, histopathological scoring was performed to evaluate tissue damage in the ovaries. RESULTS: Biochemical analysis of blood samples revealed reductions in pro-inflammatory cytokines, including interleukin-1 Beta (IL- 1β), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α), in Group 3 compared to Group 2 (p=0.005, p=0.016, and p<0.001, respectively). Additionally, a decrease in malondialdehyde (MDA) levels was observed in Group 3 compared to Group 2 (p<0.001). In contrast, activities of antioxidant enzymes, including superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX), were signifi- cantly increased in Group 3 compared to Group 2 (p=0.031 and p=0.001, respectively). Furthermore, Group 3 demonstrated notable reductions in histopathological scores for follicular degeneration, vascular occlusion, bleeding, and inflammation compared to Group 2 (p<0.001, p<0.001, p<0.001, and p=0.001, respectively). CONCLUSION: Etomidate alleviates ischemia-reperfusion injury in a rat ovarian torsion-detorsion model by improving both histo- pathological and biochemical outcomes.Article Citation - WoS: 7Citation - Scopus: 9Evaluation of Extra Virgin Olive Oil Compounds Using Computational Methods: in Vitro, Admet, Dft, Molecular Docking and Human Gene Network Analysis Study(Bmc, 2025) Unsal, Velid; Yildiz, Resit; Korkmaz, Aziz; Mert, Basak Dogru; Caliskan, Cemile Gunbegi; Oner, ErkanThis study investigates the phenolic compounds (PC), volatile compounds (VC), and fatty acids (FA) of extra virgin olive oil (EVOO) derived from the Turkish olive variety "Sar & imath; Ulak", along with ADMET, DFT, molecular docking, and gene network analyses of significant molecules identified within the EVOO. Chromatographic methods (GC-FID, HPLC) were employed to characterize FA, PC, and VC profiles, while quality parameters, antioxidant activities (TAC, ABTS, DPPH) were assessed via spectrophotometry. The analysis revealed a complex composition of 40 volatile compounds, with estragole, 7-hydroxyheptene-1, and 3-methoxycinnamaldehyde as the primary components. Hydroxytyrosol, tyrosol, oleuropein, apigenin, ferulic acid, and vanillic acid emerged as main phenolic constituents, with hydroxytyrosol and apigenin exhibiting high bioavailability. Molecular docking highlighted oleuropein and pinoresinol as compounds with strong binding affinities, though only hydroxytyrosol, apigenin, and pinoresinol fully met Lipinski and other drug-likeness criteria. DFT analysis showed that oleuropein and pinoresinol have notable dipole moments, reflecting polar and asymmetrical structures. KEGG enrichment analysis further linked key molecules like oleuropein and apigenin with pathways related to lipid metabolism and atherosclerosis, underscoring their potential bioactivity and relevance in health-related applications.Article Citation - WoS: 6Citation - Scopus: 3Protective effects of apocynin and melatonin on ovarian ischemia/reperfusion injury in rats(Clinical and Experimental Obstetrics and Gynecology, 2021) Unsal, Velid; İşgüder, Çiğdem Kunt; Can, Özlem Koşar; Pektaş, Mine Kanat; Arici, AkgülObjective: This study aims to determine the protective effects of apocynin, a NADPH oxidase inhibitor, and melatonin, an endogenous anti-oxidant, in an animal model of ovarian ischemia/reperfusion (I/R) injury. Materials/Methods: Thirty-five female rats were randomly divided into five groups, namely group I (sham), group II (I/R), group III (I/R + 10 mg/kg apocynin), group IV (I/R + 20 mg/kg apocynin), and group V (I/R + 10 mg/kg melatonin). Ovarian tissue and serum superoxide dismutase (SOD) and catalase (CAT) activities and malondialdehyde (MDA) and protein carbonyl (PC) levels were measured. Ovarian histopathology was examined and Bax, caspase 3, and iNOS immunoreactivities were evaluated. Results: Preoperative apocynin and melatonin significantly increased SOD and CAT activities (P < 0.05, P < 0.05, P < 0.01, P < 0.01, P < 0.01, P < 0.05, P < 0.05, and P<0.01, respectively, for both apocynin and melatonin). In addition, preoperative apocynin and melatonin significantly decreased the ovarian I/R injury score (P < 0.01 for both). Bax, caspase 3, and iNOS immunoreactivities were significantly lower in the I/R + 10 mg/kg apocynin and I/R + 10 mg/kg melatonin groups than in the I/R group (P<0.01, P<0.01, P<0.01, P<0.01, P<0.05, and P<0.01, respectively). Conclusions: Apocynin and melatonin are powerful antioxidant agents with considerable bioavailability and safety. Preoperative apocynin and melatonin administration might protect ovarian tissue from I/R injury after surgical adnexal detorsion.Article Citation - WoS: 4Citation - Scopus: 4Morin Attenuates Arsenic-Induced Toxicity in 3t3 Embryonic Fibroblast Cells by Suppressing Oxidative Stress, Inflammation, and Apoptosis: in Vitro and Silico Evaluations(Oxford Univ Press, 2024) Unsal, Velid; Cicek, Mustafa; Aktepe, Necmettin; Oner, ErkanThis study aims to investigate the curative effects of Morin, a flavonoid, against arsenic toxicity in 3T3 embryonic fibroblast cells and its effect on the molecular mechanisms of cells. The cytotoxicity and viability of the cells were measured by MTT and LDH tests. Arsenic (0.74 mu M) was used to trigger toxicity and Morin (50 mu M) was used for treatment. The levels of oxidative stress biomarkers and the activities of antioxidant enzymes were measured by spectrophotometric method, and inflammatory markers were measured by ELISA method. While mRNA expression levels of Bax, Bcl-2 levels, and Caspase-3 activity were measured by qRT-PCR technique, TUNEL staining was performed to detect DNA breaks and DAPI staining to visualize nuclear changes. Protein structures were retrieved from the protein data bank. OpenBabel and Autodock programs were used for the molecular docking study. Morin rescued the 3T3 embryonic fibroblast cells exposed to arsenic. However, Arsenic decreased the activities of antioxidant enzymes in cells and significantly increased oxidative stress, inflammation, and apoptosis. Morin treatment reduced oxidative damage and TNF-alpha and IL-1 beta levels. Arsenic-induced Caspase-3 mRNA expression level and Bax protein mRNA expression level were significantly increased, while Bcl-2 mRNA expression level was significantly decreased. While Caspase-3 mRNA expression level and Bax protein mRNA expression level decreased with morin treatment, Bcl-2 mRNA expression level increased significantly. Molecular docking study results showed good binding affinity of morin in SOD, GSH-Px, Bax, Bcl-2, Caspase-3, TNF-alpha, and IL-1 beta structures. Morin showed antioxidant, anti-inflammatory, and anti-apoptotic effects against Arsenic-induced cellular toxicity. Graphical AbstractArticle Assessment of Children Exposed to Maras Powder Intoxication(Folia Medica, 2020) Dalkiran, Tahir; Özaslan, Mehmed Mustafa; Acipayam, Can; Kandur, Yaşar; Unsal, VelidIntroduction: A smokeless tobacco known as Maras powder (MP) is commonly consumed in the southern region of Turkey. To the extent of our knowledge, no previous study in literature has reported acute MP intoxication in children. Aim: Our aim was to determine the clinical effects and treatment strategies of MP poisoning in children.Materials and methods: We retrospectively reviewed the medical records of children <18 years of age with MP intoxication who were followed up in the Intensive Care Unit between January 2016 and April 2018 in our center. Results: Forty-one patients (M/F= 25/16) were included in this study. The mean age was 13.2±22.4 months (age range: 7 to 30 months). The patients presented with vomiting (n=23, 56%), cough (n=17, 41.5%), loss of consciousness (n=11, 26.8%), respiratory distress (n=6, 14.6%), convulsion (n=7, 17%), cyanosis (n=1, 2.4%), and abdominal pain (n=1, 2.4%) following oral ingestion of the substance. On their physical examination all patients with convulsion were in a comatose state. Thirty-two patients (78%) had tachycardia; 15 patients (36.5%) had pharyngeal hyperemia; and three (7.3%) had hiccups. Although the female patients had a lesser rate of symptoms than male patients, the difference was not statistically significant. Conclusions: Our aim was to inform the doctors about the clinical picture that develops after taking this substance and contribute to the understanding of the treatment approach.Article Citation - WoS: 3Citation - Scopus: 3Comparison of Pde-5 Inhibitors Used in Erectile Dysfunction With Some Candidate Molecules: a Study Involving Molecular Docking, Admet, Dft, Biological Target, and Activity(Bmc, 2025) Sagir, Suleyman; Unsal, Velid; Oner, Erkan; Yildiz, Resit; Mert, Basak DogruErectile dysfunction (ED) is a urological condition defined as the inability of a man to achieve or maintain an erection. This condition negatively affects his sexual performance and the performance of his partner. Phosphodiesterase type 5 (PDE5) inhibitors are commonly used to treat ED. Arginase II plays an important role in regulating L-arginine to NO synthase in the smooth muscle of the human corpus cavernosum of the penis. NO is a molecule essential for regulating a variety of functions, including arterial blood pressure, penile erection, and energy balance. Substances such as vardenafil, alprostadil, papaverine, and resveratrol increase NO production, thereby supporting sexual function and vascular health. Additionally, NO donors such as L-arginine, L-citrulline, and alpha-lipoic acid provide effective alternatives when used in combination with PDE5 inhibitors. Medications used in the treatment of ED include vardenafil, alprostadil, and papaverine. In addition, although molecules such as L-arginine, citrulline, resveratrol, alpha-lipoic acid, and rutin are thought to play a role in ED, their pharmacological and molecular effects have not been sufficiently elucidated. The aim of this study was to investigate the effects of these molecules in the treatment of ED by computer-based calculations, to obtain new information about them and to inspire new treatment strategies for ED. The physicochemical, molecular and pharmacokinetic properties of the compounds were determined by SwissADME software, and ADMET (absorption, distribution, metabolism, excretion and toxicity) data were determined by ADMETlab 3.0 software. Biological target and activity data were obtained by MolPredictX and PASS Online software. While the Gaussian 09 program was used for DFT calculations, PyMOL, AutodockTools 4.2.6, AutoDock Vina, and Biovia Discovery programs were used for molecular docking studies. It was found that L-arginine, citrulline, resveratrol and alpha-lipoic acid were well absorbed from the intestine, while rutin showed limited absorption. When their metabolic risks were evaluated, L-arginine and citrulline were found to have lower toxicity. Molecular docking results of rutin and resveratrol were remarkable. The electronic properties of the compounds were explained by DFT calculations. L-arginine and citrulline were found to have low toxicity and positive therapeutic effects. L-arginine and citrulline stand out as promising candidates for future research. Although resveratrol data are promising, unfortunately their potential toxicity and metabolic interactions require further investigation. It is important to learn more about these compounds or conduct research to improve their therapeutic efficacy. Although computer-based calculations play an important role in toxicity predictions, drug interactions, pharmacokinetics and toxicity properties should be carefully evaluated.
