Güner Ulak

ORCID: 0000-0002-6132-6712
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Neuroscience and Neuropharmacology Research
  • Stress Responses and Cortisol
  • Tryptophan and brain disorders
  • Receptor Mechanisms and Signaling
  • Neurotransmitter Receptor Influence on Behavior
  • Neuroendocrine regulation and behavior
  • Neuropeptides and Animal Physiology
  • Nitric Oxide and Endothelin Effects
  • Memory and Neural Mechanisms
  • Urinary Bladder and Prostate Research
  • Phosphodiesterase function and regulation
  • Diet and metabolism studies
  • Treatment of Major Depression
  • Hormonal and reproductive studies
  • Sexual function and dysfunction studies
  • Epilepsy research and treatment
  • Neurobiology and Insect Physiology Research
  • Pharmacological Effects and Toxicity Studies
  • Pancreatic function and diabetes
  • Diabetes Treatment and Management
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Antibiotics Pharmacokinetics and Efficacy
  • Gastrointestinal motility and disorders
  • Insect Utilization and Effects
  • Ion channel regulation and function

Kocaeli Üniversitesi
2011-2022

Üsküdar University
2021-2022

Sakarya University
2022

Dicle University
1991-1995

Agomelatine, a novel antidepressant with established clinical efficacy, acts as an agonist of melatonergic MT1 and MT2 receptors antagonist 5-HT2C receptors. The present study was undertaken to investigate whether chronic treatment agomelatine would block unpredictable mild stress (UCMS)-induced cognitive deterioration in mice passive avoidance (PA), modified elevated plus maze (mEPM), object recognition (NOR), Morris water (MWM) tests. Moreover, the effects on brain-derived neurotrophic...

10.4137/dti.s13870 article EN cc-by-nc Drug Target Insights 2014-01-01

Exenatide is a potent and selective agonist for the GLP-1 (glucagon-like peptide-1) receptor. Recent studies are focused on effects of analogues hippocampal neurogenesis, cognition, learning memory functions. The aim this study was to assess chronic exenatide treatment (0.1 μg/kg, s.c, twice daily 2 weeks) spatial functions by using modified elevated plus maze (mEPM) test emotional passive avoidance (PA) in streptozotocin/nicotinamide (STZ-NA)-induced diabetic mice. As genes involved neurite...

10.1111/fcp.12192 article EN Fundamental and Clinical Pharmacology 2016-03-03

Background:Comorbid neurobehavioral disturbances and type-2 diabetes mellitus (T2DM) warrant immediate research attention.Exenatide, which is a potent selective agonist for the glucagon-like peptide-1 (GLP-1), used in treatment of T2DM.Exenatide displays multitude effects central nervous system.The aim this study was to investigate anxiolytic-and antidepressant-like analgesic exenatide diabetic mouse model. Material/Methods:Modified elevated plus-maze test anxiolytic-like, forced swimming...

10.12659/msmbr.891168 article EN Medical science monitor basic research/Medical science monitor. Basic research 2014-07-30

Strong evidence indicates that impaired cognition is a core element of depression, and antidepressant treatment may ameliorate cognitive impairments experienced by depressive patients. Present study was performed to investigate effects chronic tianeptine (5 mg/kg) or olanzapine (2.5 administration on behaviors unpredictable mild stress (UCMS)-exposed mice compare these those induced widely used SSRI fluoxetine (15 in mice. To drugs, the Morris water maze test (MWM), elevated plus (EPM)...

10.1055/s-0033-1347237 article EN Drug Research 2013-06-18

Nitric oxide (NO) is an atypical neurotransmitter that causes changes in cognition. synthase (NOS) and guanylate cyclase (GC) inhibitors have been shown to exert some effects on cognition previous studies; however, the findings controversial. This study was aimed at understanding of NOS inhibitor, 7-nitroindazole (7-NI), a 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ), spatial memory modified elevated plus maze (mEPM), Morris water (MWM), radial arm (RAM) tests. Male Balb-c mice were...

10.4137/dti.s23378 article EN cc-by-nc Drug Target Insights 2015-01-01

Nitric oxide (NO) plays an important role in hippocampal long-term potentiation (LTP), which is involved memory processes. This led to the hypothesis that nitric synthase (NOS) inhibitors will have disturbing effects on learning and memory. The aim of our study was investigate new selective neuronal inducible NOS inhibitor 1- (2-trifluoromethylphenyl) imidazole (TRIM) (10-50 mg/kg) compare it nonselective 7-NI (15-45 using different behavioral tests Swiss mice, thus clarifying (nNOS)...

10.1111/j.1472-8206.2010.00851.x article EN Fundamental and Clinical Pharmacology 2010-06-30

The aim of this study was to investigate the effects an atypical antipsychotic risperidone (RIS; 0.06, 0.125 or 0.25 mg/kg, intraperitoneal, i.p.) on learning and memory processes, both in naive MK-801-treated (0.15 rats.Modified elevated plus maze (mEPM), passive avoidance (PA) Morris water (MWM) tasks were used.In mEPM test, RIS (0.125 mg/kg) significantly decreased transfer latency reversed MK-801-induced prolongation rats 2nd day. In PA slightly step-through (retention latency) but...

10.1159/000324523 article EN Pharmacology 2011-01-01

Glucagon-like peptide-1 (GLP-1) is an incretin hormone that has modulating effects on insulin release. GLP-1 and receptors for are widely expressed throughout the body including brain. The expression of very specific to large neurons in hippocampus, neocortex, cerebellum. receptor stimulation enhances glucose-dependent secretion lowers blood glucose type 2 diabetes mellitus. Studies adipobiology neurotrophins have focused nerve growth factor (NGF) as example adipose-derived neurotrophins....

10.1111/fcp.12329 article EN Fundamental and Clinical Pharmacology 2017-11-20

Ethanol has been reported to cause hypertension, the mechanism of which is unknown. Therefore, effect chronic ethanol consumption on vascular responsiveness and blood pressure was investigated. Systolic recorded weekly by tail‐cuff method. Aortic rings from rats fed chow ad libitum or pair‐fed liquid diets containing either (7.2% v/v) isocaloric carbohydrate for 4 weeks were placed in organ chambers isometric tension measurement. There a mild but significant elevation systolic alcohol‐fed...

10.1046/j.1472-8206.2001.00024.x article EN Fundamental and Clinical Pharmacology 2001-06-16

Background:Nitric oxide (NO) is an intercellular messenger that plays a critical role in learning and memory processes. Effects of nitric synthase (NOS) inhibitors guanylate cyclase (GC) on cognitive function remain controversial. Material andMethods:The aim this study was to investigate effects NOS inhibitor, 7-nitroindazole (7-NI), GC 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ), different aspects passive avoidance (PA), novel object recognition (NOR), social transmission food...

10.12659/msmbr.890438 article EN Medical science monitor basic research/Medical science monitor. Basic research 2014-03-19

Phosphodiesterase (PDE) inhibitors in the central nervous system have been shown to stimulate neuronal functions and increase neurogenesis Alzheimer disease (AD) patients.The aim of this study was investigate effects zaprinast, a PDE5 inhibitor, rolipram, PDE4 on learning memory elevated plus maze (EPM) passive avoidance (PA) tests naive mice. Male Balb-c mice received short-term treatment with zaprinast (3 10 mg/kg) rolipram (0.05 0.1 before acquisition trial EPM PA tests. The exploratory...

10.12659/msmbr.891149 article EN Medical science monitor basic research/Medical science monitor. Basic research 2014-07-24
Coming Soon ...