Biljana Gataric

Dr. Biljana Gataric

Faculty of Medicine, University of Banja Luka, Banja Luka, Srpska, Republika, Bosnia and Herzegovina
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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2 September 2022 in Healthcare
Verified
Journal Article
Open access
PDF file
NKNebojša Kladar
Nebojša Kladar
KBKatarina Bijelić
Katarina Bijelić
BGBiljana Gataric
Biljana Gataric
NPNataša Bubić Pajić
Nataša Bubić Pajić
Maja HitlMaja Hitl
Maja Hitl
Since the appearance of the novel coronavirus disease of 2019—COVID-19, various therapeutic approaches were attempted, with complementary and alternative medicine (CAM) taking an important place. The aim of this study was to investigate the use of CAM with the purpose of prevention or treatment of COVID-19 during the pandemics. A prospective, cross-sectional study, in the form of an on-line survey was conducted. A total of 1704 responses were collected. Among the respondents, 2.76% declared currently and 22.12% previously having COVID-19. Approximately one quarter of interviewees (23.24%) declared themselves as phytotherapy users. The most frequently used medicinal plants were garlic, ginger and chamomile. The majority of respondents stated that they expected positive effects on immune and respiratory system. Medicinal plants were frequently used, on a daily basis. The main sources of information for applied self-medication were populistic thematic literature, followed by the Internet. Approximately one-third of phytotherapy users (35.25%) consulted with a medical professional before the application of phytotherapy. Regarding dietotherapy, 41.14% of respondents reported using non-herbal dietary supplements, while only 7.16% reported specific diet. The presented results suggest that CAM is recognized and readily used as a potential alternative and complementary regimen in the fight against COVID-19.

2 November 2024 in Pharmaceutics
Verified
Journal Article
Open access
PDF file
NMNebojša Mandić-Kovačević
Nebojša Mandić-Kovačević
IKIrena Kasagić-Vujanović
Irena Kasagić-Vujanović
BGBiljana Gataric
Biljana Gataric
RŠRanko Škrbić
Ranko Škrbić
Ana Popovic BijelicAna Popovic Bijelic
Ana Popovic Bijelic
Background/Objectives: The importance of fixed-dose combinations (FDCs) for the treatment of hypertension is well established. However, from a stability perspective, FDCs present a challenge since the degradation of one active pharmaceutical ingredient (API) can be affected by the presence of another API. The aim of this study was to compare the degradation behaviors and evaluate the degradation kinetics of three antihypertensive drugs, perindopril tert-butylamine (PER), amlodipine besylate (AML), and indapamide (IND). Methods: The degradation processes were studied using the previously developed reverse phase high-performance liquid chromatographic (RP-HPLC) method after exposing each drug individually, as well as the combinations of two/three drugs, to different stress factors, such as light, oxidation, acidic, basic, or neutral pH values at different temperatures. Results: The results show that PER is most unstable under basic conditions and that AML displays a negative, while IND displays a positive effect, on PER stability when combined. AML is most affected by basic conditions and oxidation, and its stability is affected by both drugs positively; IND undergoes extreme photolysis, which is positively affected by AML but negatively by PER. Conclusions: Great care must be taken when formulating FDCs with these three drugs, as well as solutions or oral suspensions adjusted for geriatric or pediatric populations, since the stability of all three drugs is greatly affected by pH conditions, as well as light or oxidation factors and their interactions.

11 June 2024 in Pharmaceutics
Verified
Journal Article
Open access
PDF file
ASAneta Stojmenovski
Aneta Stojmenovski
BGBiljana Gataric
Biljana Gataric
SVSonja Vucen
Sonja Vucen
MRMaja Railic
Maja Railic
Veljko KrstonošićVeljko Krstonošić
Veljko Krstonošić
Anđelka RačićAnđelka Račić
Anđelka Račić
Propranolol hydrochloride, a non-cardio-selective beta blocker, is used to treat several conditions in children, including hypertension, arrhythmias, hyperthyroidism, hemangiomas, etc. Commercial liquid formulations are available in Europe and the US, but they have disadvantages, such as limited stability, bitter taste, and the need for multiple daily doses due to the drug’s short half-life. Considering these limitations, controlled-release solid formulations, such as microparticles, may offer a better solution for pediatric administration. The main objective of this study was to formulate an encapsulation system for propranolol hydrochloride, based on sodium alginate and other polysaccharide polymers, to control and prolong its release. Microparticles were prepared using the ionotropic gelation method, which involves instilling a polymer solution into a solution of gelling ions via the extrusion technique. Physicochemical characterization was conducted by assessing the entrapment efficiency, drug loading, swelling index, microparticle size, rheological properties, and surface tension. In order to improve the characteristics of the tested microparticles, selected formulations were coated with chitosan. Further experimental work included differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) analysis, and SEM imaging. This in vitro release study showed that chitosan-coated microparticles demonstrate favorable properties, suggesting a novel approach to formulating pediatric dosage forms, although further optimization is necessary.

11 January 2019 in Biopharmaceutics & Drug Disposition
Verified
Journal Article
Closed access
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BGBiljana Gataric
Biljana Gataric
Jelena ParojcicJelena Parojcic
Jelena Parojcic

1 December 2025 in Polysaccharides
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Journal Article
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Anđelka RačićAnđelka Račić
Anđelka Račić
BGBiljana Gataric
Biljana Gataric
VVValentina Topic Vucenovic
Valentina Topic Vucenovic
ASAneta Stojmenovski
Aneta Stojmenovski
Pediatric drug delivery presents unique challenges due to physiological and pharmacological differences across age groups, requiring specialized formulation approaches beyond simple dose adjustments of adult medications. This review synthesizes recent advances in polysaccharide-based pediatric drug delivery and highlights novel findings that may accelerate clinical translation. It summarizes how chitosan, alginate, hyaluronic acid, dextran, modified starches, and other polysaccharides are engineered into nanoparticles, hydrogels, films, and orodispersible/mini-tablet formulations to improve stability, bioavailability, taste masking, and controlled release across neonates to adolescents. These systems can accommodate developmental variations in absorption, distribution, metabolism, and excretion processes across pediatric subpopulations, with particular emphasis on oral and alternative administration routes. Evidence supporting unexpectedly high acceptability of mini-tablets, successful integration of modified polysaccharides in 3D-printed personalized low-dose therapies, and the emergence of blood–brain barrier-penetrating and RGD-functionalized polysaccharide nanocarriers for pediatric oncology are emphasized as novel, clinically relevant trends. This review also addresses regulatory considerations, safety profiles, and future perspectives. By integrating developmental insights with innovative formulation strategies, polysaccharide polymers offer promising solutions to improve medication adherence, safety, and efficacy across the pediatric age spectrum.