Faculty of Pharmacy
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Item type:Publication, Design and biological response of doxycycline loaded chitosan microparticles for periodontal disease treatment(Elsevier BV, 2018-04-15) ;Gjoseva, Silvana; ;Sazdovska, Simona Dimchevska ;Popeski-Dimovski, RistePetruševski, GjorgjiThe aim of this study was to develop chitosan (CS) microparticulated mucoadhesive drug delivery system (DDS) with improved therapeutic performance and biological responce. Ionotropic gelation/spray drying process was used for preparation of doxycycline hyclate (DOXY) loaded low and medium molecular weight (LMw and MMw) CS/sodium tripolyphosphate microparticles (CS/TPP MPs), further coated with ethyl cellulose (EC) using coacervation/solvent displacement technique. The relevant physico-chemical and biopharmaceutical properties were optimized using experimental design approach. Both coated and uncoated CS/TPP MPs showed high mucoadhesive potential and did not affect the viability of the tested epithelial cell line. The MPs induced slow and gradual apoptotic response in murine macrophage cell line RAW 264.7 and the observed effect depended upon formulation type and MP concentration. Biological effect of the CS-based MPs observed in our experiments point to synergism of the biological response of the carrier with the anti-inflammatory effect of DOXY. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Rational development of nanomedicines for molecular targeting in periodontal disease(Elsevier BV, 2018-09); ;Sazdovska, Simona Dimchevska ;Gjosheva, Silvana; Recent advances in understanding the etiology and pathogenesis of periodontal disease and polymicrobial synergy in the dysbiotic oral microbial community endorsed novel therapeutic targets and assured further improvement in periodontal disease treatment. Moreover, understanding of the events at the molecular level inspired the researchers to alleviate the stress from the disease by applying the bottom-up approach and delivering the drugs at the site of action, using nanoscale medicines. This review is focused on promising strategies for rational design of nanopaharmaceuticals for periodontal disease treatment based on novel therapeutic targets and the potential of advanced concepts for inflammation cascade targeting. Due to their size, nanomedicines are capable to interact with the elements of the immune system through cell receptor binding and to subsequently influence specific intracellular signaling pathways activation. They might also interfere with different signaling molecules continuously involved in the disease progression, in order to abolish cell activation and block the production of proinflammatory substances. Different biomacromolecules can be trafficked to the site of action using nanomedicines for gene targeting: i) decoy oligodeoxynucleotide (ODN) for suppression of NF-κB transcription activity, ii) DNA therapeutics for modulation of cell inflammatory response and iii) siRNA for cytokine production silencing. However, despite the potential of the nanotechnology for improvement of periodontal disease treatment, the translation of nano-drug delivery systems to clinical therapy is hindered by the lack of standard procedures for proper safety and efficacy profile evaluation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, MDM2309 (rs2279744) polymorphisms and risk for HPV persistence and cervical intraepithelial lesions and cervical cancer development in Macedonian women(2018)SotirijaDuvlis, Drage Dabeski, Ljube Ivkovski, Marija Hiljadnikova-Bajro, Dijana Plaseska Karanfilska - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Association of p53Pro72Arg (rs1042522) and MDM2309 (rs2279744) polymorphisms with risk for cervical intraepthelial lesions and cervical cancer development in Macedonian women(2016) ;Sotirija Duvlis ;Marija Hiljadnikova-BajroDijana Plaseska KaranfilskaHigh risk Human Papillomavirus (HPV) is an important etiological factor in initiation of squamous intraepithelial lesions (SIL), but not enough for malignant progression to cervical cancer (CCa). Single nucleotide polymorphisms (SNPs): rs1042522 within the codon 72 of p53 and rs2279744 within MDM2 promoter gene are plausible factors for development of SIL or CCa conferring increased attenuation of p53 pathway. We investigated the association of these SNPs with the HPV positive SIL and CCa among women from the Republic of Macedonia. Using a multiplex PCR SNaPShot analysis we genotyped rs1042522 and rs2279744 in 131 HPV positive women with SIL or CCa and 110 HPV and cytologicaly negative controls subject. No significant difference in either genotype or allelic frequencies for rs1042522 and rs2279744 between cases and control was found. The stratification of patients on the basis of the lesion grade revealed lower frequency of CC genotype and C allele of rs1042522 in HSIL and CCa compared to LSIL [GG vs CC; p=0.001, OR=0.4; CG vs CC; p=0.04, OR=0.03 and CG+ GG vs CC; p=0.004, OR=0.2]. Additionally TT genotype and T allele of MDM2 309 showed significantly lower frequency in HSIL and CCa group then in LSIL [G vs T p=0.02, OR=0.52; GG vs TT; p=0.04, OR=0.29; ТТ vs ТG+GG; p=0.007, OR=0.34].The Arg variant of rs1042522 and T allele/TT genotype of rs2279744 are associated with progression to LSIL to HSIL or CCa and may be used as prediction markers in CCa management, but the clinical relevant warrants further validation in large and well-designed studies. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Distribution of the most Common Genetic Variants Associated with a Variable Drug Response in the Population of the Republic of Macedonia(2014-12) ;Kapedanovska Nestorovska, A ;Jakovski, K ;Naumovska, Z ;Hiljadnikova Bajro, MSterjev, ZGenetic variation in the regulation, expression and activity of genes coding for Phase I, Phase II drug metabolizing enzymes (DMEs) and drug targets, can be defining factors for the variability in both the effectiveness and occurrence of drug therapy side effects. Information regarding the geographic structure and multi-ethnic distribution of clinically relevant genetic variations is becoming increasingly useful for improving drug therapy and explaining inter-individual and inter-ethnic differences in drug response. This study summarizes our current knowledge about the frequency distribution of the most common allelic variants in three broad gene categories: the Phase I oxidation-cytochrome P450 (CYP450) family (CYP2C9, CYP2C19, CYP3A5, CYP2D6); the Phase II conjugation (GSTT1, SULT1A1; UGT1A1) and drug target (TYMS-TSER, MTHFR and VKORC1) in the population of the Republic of Macedonia and compares the information obtained with data published for other indigenous European populations. Our findings define the population of the Republic of Macedonia as an ethnic group with a highly polymorphic genetic profile. These results add to the evidence regarding the distribution of clinically important variant alleles in DME and drug target genes in populations of European ancestry. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A novel germline MLH1 mutation causing Lynch Syndrome in patients from the Republic of Macedonia(2012-10) ;Hiljadnikova-Bajro, Marija ;Josifovski, Toni ;Panovski, MilcoDimovski, Aleksandar JTo implement molecular analysis in the clinical diagnosis and management of Lynch syndrome (LS). - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A new case with 10q23 interstitial deletion encompassing both PTEN and BMPR1A narrows the genetic region deleted in juvenile polyposis syndrome(Springer Science and Business Media LLC, 2012-09-21) ;Hiljadnikova Bajro, Marija ;Sukarova-Angelovska, Elena ;Adélaïde, Jose ;Chaffanet, MaxDimovski, Aleksandar J. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Promoter length polymorphism in UGT1A1 and the risk of sporadic colorectal cancer(Elsevier BV, 2012-04) ;Hiljadnikova Bajro, Marija ;Josifovski, Toni ;Panovski, Milco; Kapedanovska Nestorovska, Aleksandra - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Biomolecular laboratory markers in cancer management(2017)The laboratory analysis is a compulsory supplement to clinical evaluation in making decisions upon diagnosis and treatment of cancer, one of the leading causes of death worldwide. The traditional biochemical laboratory protocols employed in diagnosis, prognosis and monitoring of malignant diseases include testing of soluble macromolecules as tumor markers and certain common parameters corresponding to the specific type of malignancy, but their limited reliability urges the necessity of identifying new biomarkers with higher specificity, sensitivity and predictability. Biomolecular/genetic testing is an emerging field within the scope of laboratory analysis with high clinical potential based on the assumption that revealing the genetic profile unique to each individual cancer may help predict the prognosis and select an appropriate treatment to target the changes in the specific tumor. This work reviews the currently available genomic laboratory tests and highlights their clinical and scientific relevance. Implication of aberrant transcripts BCR-ABL and PML-RAR for the management of leukemias, detection of genetic and epigenetic aberrations associated with familial cancer syndromes (MMR gene defects in Lynch Syndrome), pharmacogenetic assays for HER2, EGFR, ALK, KRAS, BRAF, UGT1A1 testing for selection of appropriate most efficient and least toxic treatment of particular cancer types will be addressed, along with novel, recently identified markers with anticipated clinical impact. The rapid development of high throughput technologies shifting singleplex towards multiplex testing, such as the next generation sequencing paired with bioinformatics which enable fast and affordable sequencing of the entire genome of an individual, will inevitably empower accelerated establishment of new biomolecular markers associated with the process of cancer initiation and progression. A comparative overview of the contemporary methodologies will be presented in the lecture. Multidisciplinary efforts should be made to implement the benefits from the technological advancement in the scientific process of new biomarker identification and translation of the research results into clinical practice, in order to provide best treatment for cancer patients in accordance with the principles of the precision medicine. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Pharmacogenetic testing in optimization of treatment with statins(2018-10)Statins are a class of drugs that have been widely prescribed nowadays for treating hypercholesterolemia and thus prevent the risk of atherosclerotic cardiovascular events and consecutive mortality. Unfortunate ly, the patient’s compliance with treatment is frequently compromised by the high incidence of adverse effects including hepatotoxicity, myotoxicity, increased risk for diabetes mellitus etc. The expansion of the precision medicine concept in pharmacology has introduced pharmacogenetic testing as a potential predictive strategy in statins pharmacotherapy. A thorough literature survey was performed using the PubMed database on the published data in English language in the period 2000-2017, regarding genotype-phenotype associations in statin-induced toxicity, identifying a growing body of evidence supporting the need for pharmacogenetic approach in treatment with statins. Polymorphisms in the genes coding for the CYP450 enzymes: CYP2D6, DYP2D9, CYP3A4 and drug transporter genes like ABCB1, ABCG2 and SLCO1B1 appear to be responsible for the variable re sponse and toxicity of statins. But, many studies highlight the importance of drug interactions and epi genetics in modifying the response towards this class of drugs metabolized via pathways shared by the majority of pharmaceutical agents. With the rapid development of molecular techniques accompanied by a dramatic cost reduction in genetic testing, it can be easily anticipated that pharmacogenetic patient profiling will soon become standard of care in designing the optimal statin treatment either as a monotherapy or in combination with other phar maceuticals.
