Person:
YENİGÜN, VILDAN BETÜL

Profile Picture
Google ScholarScopusORCIDPublons
Status
Organizational Units
OrgUnit Logo
Organizational Unit
Job Title
First Name
VILDAN BETÜL
Last Name
YENİGÜN
Name
Email Address
Birth Date

Filters

2013 - 20194
Reset filters

Settings

Rights: info:eu-repo/semantics/openAccess × Start date: 2013 × End date: 2019 ×

Search Results

Now showing 1 - 4 of 4
  • No Thumbnail Available
    PublicationMetadata only
    Response of CD44+/CD24-/low breast cancer stem/progenitor cells to tamoxifen‑ and doxorubicin‑induced autophagy.
    (2013-06-01T00:00:00Z) Yenigun, VİLDAN BETÜL; OZPOLAT, B; KOSE, GT; YENİGÜN, VILDAN BETÜL
  • No Thumbnail Available
    PublicationMetadata only
    NF-kappa B Inhibition Activity of Curcumin-Loaded Sterically Stabilized Micelles and Its Up-Regulator Effect on Enhancement of Cytotoxicity of a New Nano-Pirarubicin Formulation in the Treatment of Breast Cancer
    (2019-09-01) Eskandari, Zahra; BAHADORİ, FATEMEH; Yapaoz, Melda Altkatoglu; Yenign, VİLDAN BETÜL; KOÇYİĞİT, ABDÜRRAHİM; Onyuksel, Hayat; BAHADORİ, FATEMEH; YENİGÜN, VILDAN BETÜL; KOÇYİĞİT, ABDÜRRAHİM
    This study aims to investigate the effects of co-administration of nano-Curcumin on anticancer effect of nano-Pirarubicin considering the fact that the clinical use of Pirarubicin and other anthracyclines has been limited by development of multidrug resistance (MDR) and based on previous data which have shown that Curcumin can down-regulate MDR proteins and suppress the activity of Nuclear factor-kappa B (NF-kappa B) a protein involved in chemoresistance. Nano micellar formulations of both Curcumin and Pirarubicin were separately synthesized using 1,2 -Distearoyl-sn-glycero-3-phosphoethanolamine-N-methoxy-[poly (ethylene glycol); PEG MW 2,000] (DSPE-PEG2000). The produced sterically stabilized micelles (SSM) are very well known drug delivery systems in terms of their enhanced efficacy and good toxicity profile. We measured the differences of NF-kappa B levels in two different situations: when Pirarubicin is used alone and when it is co-administered with Curcumin. This study showed that co-administration of SSM-Curcumin (CSSM) and SSM-Pirarubicin (PSSM) with size of 12.81 nm enhances the efficacy of Pirarubicin by suppressing P65, an NF-kappa B subunit. Furthermore, we showed that SSM is able to successfully enhance water solubility and therapeutic stability of curcumin for using as a complementary agent.
  • Thumbnail Image
    PublicationOpen Access
    Investigation of the role of major respiratory viruses in the aetiology of nasal polyps using polymerase chain reaction technique
    (2014-04-01) YENIGUN, A.; AKSOY, FEYZA MÜBERRA; DOGAN, REMZİ; Yilmaz, F.; Ozturan, ORHAN; AKSOY, FADLULLAH; YENİGÜN, ALPER; DOĞAN, REMZI; ÖZTURAN, ORHAN; YENİGÜN, VILDAN BETÜL
    Objective: We aimed to identify the role of major respiratory viruses in the aetiology of human nasal polyps using polymerase chain reaction technique. Methods: Thirty patients with nasal polyps and a group of 20 healthy patients (control group) were included in this study. Mucosa was obtained from the polyps of patients with nasal polyposis and from the middle turbinate of the control group patients by means of biopsy. The samples were stored at -80 °C until molecular analysis by polymerase chain reaction was carried out. Results: In the control group, the human coronavirus and human rhinovirus were diagnosed in one of the patients and the human respiratory syncytial virus in another. In the group with nasal polyposis, the influenza B virus was identified in one of the patients and the human coronavirus in another. Conclusion: The results did not demonstrate a statistically significant relationship between nasal polyposis and respiratory viruses.
  • Thumbnail Image
    PublicationOpen Access
    Quercus pyrenaica Honeydew Honey With High Phenolic Contents Cause DNA Damage, Apoptosis, and Cell Death Through Generation of Reactive Oxygen Species in Gastric Adenocarcinoma Cells
    (2019-09-01) KOÇYİĞİT, ABDÜRRAHİM; Aydogdu, Gokhan; BALKAN, EZGİ; GÜLER, Eray Metin; BULUT, HURİ; KÖKTAŞOĞLU, FATMANUR; Goeren, AHMET CEYHAN; Atayoglu, Ali Timucin; KOÇYİĞİT, ABDÜRRAHİM; BALKAN, EZGİ; YENİGÜN, VILDAN BETÜL; GÜLER, ERAY METİN; BULUT, HURI; KÖKTAŞOĞLU, FATMANUR; GÖREN, AHMET CEYHAN
    Many studies have shown that honey with high phenolic contents prevents cancer formation. Furthermore, recent studies have demonstrated that honey can be used for the treatment of cancer as well as cancer prevention. Antineoplastic effects of honey are often associated with their antioxidant phenolic contents. However, very few studies have dealt with the association of phenolic contents of honeys in terms of antiproliferative effects. The aim of this study was, therefore, to elucidate the cytotoxic, genotoxic, apoptotic, and reactive oxygen species (ROS) generating effects of honey samples on the basis of their phenolic and flavonoid contents. Fourteen different honey varieties were collected from various parts of Turkey, and their characteristics regarding total phenols, flavonoids, and antioxidant contents were determined to test their effects on gastric cancer cells (AGS). For convenience, 2 honey varieties were selected, namely, Ida Mountains Quercus pyrenaica honeydew honey (QPHH-IM) having the highest phenolic and antioxidant content and Canakkale multifloral honey (MFH-C) with the lowest phenolic and antioxidant content. Levels of 11 different phenolic compounds in QPHH-IM and MFH-C samples were determined by LC-MS/MS. AGS cells were incubated with different concentrations of QPHH-IM and MFH-C for 24 hours, then the cell viability, DNA damage, apoptosis, and generation of ROS were determined. We found that QPHH-IM had more cytotoxic, genotoxic, and apoptotic effects than that of MFH-C. We think that these effects are probably related to pro-oxidant activities due to the high phenolic contents present. Therefore, further research on high-phenolic honey may contribute to the future development of cancer therapeutics.