Gabi Topor

Dr. Gabi Topor


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
21 May 2025 in Dentistry Journal
Verified
Journal Article
Open access
PDF file
CDCaterina Dumitru
Caterina Dumitru
Mariana LupoaeMariana Lupoae
Mariana Lupoae
CBCristian-Constantin Budacu
Cristian-Constantin Budacu
MGMitea Gabriela
Mitea Gabriela
MRMarius-Daniel Radu
Marius-Daniel Radu
GTGabi Topor
Gabi Topor
Background/Objectives: Oral health is a complex concept involving physical, psychological, emotional, and social components. A key factor in maintaining oral tissue integrity is redox balance, which is disrupted by oxidative stress (OS) through an imbalance between reactive oxygen species (ROS) and antioxidant defenses. This study examines the contribution of endogenous and exogenous sources to OS and explores the therapeutic potential of medicinal plants from the Asteraceae and Lamiaceae families in restoring redox homeostasis and improving oral health. Methods: A literature review was conducted, analyzing the role of OS in oral diseases and the antioxidant mechanisms of selected Asteraceae species. Special attention was given to their phytochemical contents—polyphenols, flavonoids, and essential oils—and their biological relevance to oral health. Results: OS plays a critical role in the onset and progression of oral conditions such as caries, periodontitis, gingivitis, aphthous ulcers, abscesses, precancerous lesions, and oral cancers. ROS and reactive nitrogen species (RNS) cause inflammation, tissue breakdown, and salivary gland dysfunction. Asteraceae plants like Matricaria chamomilla, Calendula officinalis, Cichorium intybus, Taraxacum officinale, Arctium lappa, Achillea millefolium, and Solidago virgaurea demonstrate notable antioxidant, anti-inflammatory, and antimicrobial properties that help counteract OS and support oral homeostasis. Conclusions: Asteraceae and Lamiaceae species show high therapeutic potential in addressing OS-related oral disorders. Their bioactive compounds aid in restoring redox balance and protecting oral tissues. These findings support the integration of phytotherapeutic agents into oral healthcare and call for further clinical validation of plant-based strategies for disease prevention and management.

19 November 2024 in Medicina
Verified
Journal Article
Open access
PDF file
Ada StefanescuAda Stefanescu
Ada Stefanescu
DCDorin Ioan Cocoș
Dorin Ioan Cocoș
GTGabi Topor
Gabi Topor
FLFabian C Lupu
Fabian C Lupu
DADoriana Agop-Forna
Doriana Agop-Forna
EKEarar Kamel
Earar Kamel
Background and Objectives: This study aimed to evaluate the effects of advanced platelet-rich fibrin (A-PRF+) tissue regeneration therapy on clinical periodontal parameters in non-smokers and smoker patients. The anticipated biological mechanisms of A-PRF+ include stimulating angiogenesis, thereby promoting the formation of new blood vessels, which is essential for tissue healing. Additionally, A-PRF+ harnesses the regenerative properties of platelet-rich fibrin, contributing to the repair and regeneration of periodontal tissues. Materials and Methods: The study was conducted on 55 patients, divided into two groups: non-smoker patients (n = 29) and smoker patients (n = 26). A single operator conducted the surgical procedure. Following the administration of local anesthesia with articaine 4% with adrenaline 1:100,000 precise intracrevicular incisions were made, extending towards the adjacent teeth, until the interproximal spaces, with meticulous attention to conserving the interdental gingival tissue to the greatest extent possible. Extended, full-thickness vestibular and oral flaps were carefully lifted, and all granulation tissue was meticulously removed from the defect without altering the bone contour. After debridement of the defects, A-PRF+ was applied. BOP (bleeding on probing), PI (plaque index), CAL (clinical attachment loss), and probing depth (PD) were determined at baseline and six months post-surgery. Results: Significant reductions were observed in PD and CAL after six months. In the non-smokers group, PD decreased from 7.0 ± 1.0 mm to 3.1 ± 0.1 mm (p < 0.001), while in the smokers group, PD decreased from 6.9 ± 1.1 mm to 3.9 ± 0.3 mm (p < 0.001). CAL decreased in the non-smokers group from 5.8 ± 0.7 mm to 2.6 ± 0.2 mm and from 5.7 ± 0.9 mm to 3.2 ± 0.2 mm (p < 0.001) in smokers. Notably, the reductions in CAL and PD were statistically more significant in the non-smokers group. Conclusions: Even though the clinical periodontal improvements were considerable in smoker patients, they did not reach the level observed in non-smoker patients.

Verified
Journal Article
Open access
PDF file
MHMarilena Viorica Hovanet
Marilena Viorica Hovanet
MDMihaela Afrodita Dan
Mihaela Afrodita Dan
Denisa MarginaDenisa Margina
Denisa Margina
AUAnca Ungurianu
Anca Ungurianu
Adina Magdalena MusucAdina Magdalena Musuc
Adina Magdalena Musuc
GTGabi Topor
Gabi Topor
(1) The growing interest in the use of natural and sustainable ingredients highlights the investigation of vegetable oils in dermato-cosmetic applications. In this context, the vegetable oil obtained from walnut (Juglans regia L.) is of actual interest due to its composition rich in unsaturated fatty acids. The aim of the present study was to investigate and characterize walnut oil from a physicochemical, structural, and rheological point of view. (2) The oil was obtained by a cold pressing process from walnut seeds, with a yield of about 51.03 ± 1.41%, and subsequently analyzed by complementary methods. (3) The results show an acceptable physicochemical profile, characterized by appropriate values of density, pH, and spreadability. The oxidative stability indicated a moderate resistance to degradation, specific to oils rich in polyunsaturated fatty acids. Fourier infrared transform spectrometry (FTIR) analysis confirmed the presence of functional groups characteristic of triglycerides, without indications of advanced oxidation, and atomic force microscopy (AFM) investigations revealed a heterogeneous morphology. The rheological properties indicated a pseudoplastic behavior, favorable for topical application. The determination of heavy metals confirmed the safety of the raw material for the intended dermato-cosmetic use. While arsenic levels were slightly above the strict Codex Alimentarius limits for foodstuffs, all values remained within the safety ranges established for cosmetic ingredients. A total of six fatty acids were found in cold-pressed walnut oil, determined using GC-MS methods. The number of compounds identified in the silylated sample was found to be 17. The antioxidant activity determined using DPPH and ABTS methods was generally considered good and relatively stable over time. The measured sun protection value (SPF) demonstrates a favorable capacity to act as a photoprotective ingredient against ultraviolet (UV) radiation. (4) Overall, the results demonstrate that walnut oil presents adequate physicochemical and structural properties, supporting its further use as a potential cosmetic raw material.

8 July 2026 in Cosmetics
Verified
Journal Article
Open access
PDF file
CSCristina-Ionela Stănciulescu
Cristina-Ionela Stănciulescu
Andreea Roxana UngureanuAndreea Roxana Ungureanu
Andreea Roxana Ungureanu
VPVirgil Patrascu
Virgil Patrascu
CBCornelia Bejenaru
Cornelia Bejenaru
MHMarilena Viorica Hovanet
Marilena Viorica Hovanet
GTGabi Topor
Gabi Topor
Intrinsic and extrinsic skin aging alter skin structure and function, while hydrating products and regenerative therapies such as platelet-rich plasma (PRP) support the restoration of skin homeostasis and clinical appearance. This in vivo study aimed to evaluate whether a combination of a hydrating cream and PRP improves skin texture. Three groups of participants were treated over 90 days with hydrating cream, intradermal PRP, and hydrating cream enriched with PRP (HC-PRP). The evaluation was conducted by dermoanalysis at each 30 days with two main indices, moisture and texture, and six complementary indices, oil, complexion, 3D, pigment, phlogosis, and pores. The best texture outcomes were observed in the HC-PRP group, which showed a significant improvement over time and better results than the cream alone (significant after Bonferroni correction). For the moisture index, the hydrating cream alone gave the largest increase, consistent with its primary action, although HC-PRP was also associated with a moderate increase. These exploratory results point to a potential benefit of the HC-PRP combination for skin texture and offer a starting point for future research. Further randomized studies on larger samples are required to validate these observations and to establish the contribution of PRP.