Faculty of Medicine

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    Costs of treating serious adverse effects of drugs used for treatment of obesity: comparison of selected European countries
    (Informa UK Limited, 2024-11-03)
    Raičević, Branislava
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    Stević, Ivana
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    Lakić, Dragana
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    Männik, Agnes
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    Drugs for the treatment of obesity show significant effectiveness, but the adverse effects (ADRs) of these drugs are numerous and varied, and some of them are highly cost-generating. Our research aimed to define the health care utilization pattern in treating ADRs of antiobesity therapy, to compare the costs of treating these ADRs among selected European countries, and to identify the key cost drivers. A comparative analysis of the costs of treating the ADRs of antiobesity drugs in 10 European countries (seven EU members and three from the Western Balkans) was conducted, and the impact of parameters of global health expenditures on them was assessed. There are considerable differences in costs of treating adverse antiobesity drug reactions among European countries: costs of treating gastroesophageal reflux disease varied almost 20 times between North Macedonia (12.6 EUR) and Estonia (202.9 EUR). The Gross Domestic Product per capita was an important cost driver in treating the majority of the ADRs studied (p < .001), except for retinopathy, anaphylaxis, and respiratory disorders. The Domestic Private Health Expenditure increased the costs of treating depression (p = .012), upper respiratory tract infection (p = .008), melanocytic naevus (p = .027), and drug-induced hepatitis (p = .023). Investment in pharmaceuticals, medical goods, and preventive care tended to reduce the costs of treating several ADRs, which are seemingly unrelated to the body site or mechanism. Healthcare utilization and costs of treating ADRs to antiobesity drugs vary significantly among European countries. These differences should be considered when creating inputs for cost-effectiveness and budget impact models to decrease their uncertainty.
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    Seminal Fluid Microbiota and Male Infertility: An Emerging Frontier
    (Macedonian Association of Anatomists and Morphologists, 2024-10)
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    Infertility is a multifaceted issue affecting millions globally, with male factors contributing to approximately 50% of cases. Traditionally, male infertility has been linked to genetic, hormonal, and environmental factors. However, emerging research highlights that disruptions or imbalances of the microbiota residing in the male reproductive tract, including the prostate, seminal vesicles, and urethra have significant implications for male reproductive health. Male urogenital system, particularly the urethra is home to a wide variety of microorganisms with rather high quantity. The composition of male genital microbiome can vary significantly between individuals and while the core microbiome is consised of a few dominant species a high variability is noted in minor species. It is predominantly composed of bacteria, with species from the genera Lactobacillus, Staphylococcus, Corynebacterium, and Propionibacterium being commonly found. Differentiating between pathogenic bacteria and the usual resident microflora is a difficulty in clinical practice, especially when it comes to male infertility. Furthermore, even though it is often benign, an imbalance in the commensal microbiota might encourage inflammation or foster an atmosphere that is favorable for pathogenic infections. Therefore, it is crucial to comprehend and maintain this equilibrium in order to create successful plans for the treatment and prevention of infertility. Traditional diagnostic approaches on male infertility focus on hormonal levels, sperm analysis, sperm culture and genetic factors, but unlike conventional culture methods which might find it difficult to distinguish between pathogenic and benign microorganisms because of genotypic and phenotypic overlaps and low pathogen presentation, developments in molecular methods for microbiota analysis, offer the possibility of more precise diagnosis and treatment of urogenital infections and imbalances. Modulating the genital microbiome could offer new treatment strategies for male infertility and related conditions.
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    ADJUVANT TREATMENT WITH POLYPHENOLS REDUCES OXIDATIVE STRESS PARAMETERS IN IMATINIB TREATED PATIENTS WITH CHRONIC MYELOID LEUKEMIA
    (Serbian Redox Society, 2024-09)
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    Labachevski, Bojan
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    Popova Labachevska, Marija
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    Effect of standardized Aronia Melanocarpa extract on oxidative stress and antioxidant status in patient with chronic myeloid leukemia treated with imatinib
    (Macedonian Pharmaceutical Association, Ss. Cyril and Methodius University in Skopje, Faculty of Pharmacy, 2024-03)
    Labachevski, Bojan
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    Popova Labachevska, Marija
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    Antioxidant status in patients with chronic myeloid leukemia (CML) is significantly decreased in comparison with healthy individuals. Oxidative stress (OS) may be associated with the pathophysiology of CML and can influence on development of resistance to imatinib. The aim of our study was to investigate the effect of Aronia melanocarpa extract (A-lixir 400 PROTECT®) on OS in CML patients treated with imatinib. In this study a total of 40 CML patients treated with imatinib for longer than 1 month were included: twenty patients were treated with imatinib and A-Lixir 400 PROTECT® (treatment group) and twenty patients were treated only with imatinib (control group). OS parameters (d-ROM, PAT and OSI) were measured at the initial visit, and after 21 and 42 days of treatment. Adjuvant treatment with A-Lixir 400 PROTECT® could lead to attenuation of OS. d-ROM and OSI in this group of patients were significantly higher at initial visit when compared to values after 21 and 42 days of treatment (p<0.05). Total antioxidant capacity (PAT) was significantly higher after 21 and 42 days of treatment initiation in comparison with the pretreatment values. In the control group no significant differences were obtained between investigated parameters at any time of measurement. We can conclude that adjuvant treatment with A-Lixir 400 PROTECT® after 21 and 42 days lead to significant reduction of OS in patients with CML treated with imatinib.
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    NEPHROPROTECTIV EFFECTS OF CANDESARTAN ON DIABETIC NEPHROPATHY IN RATS
    (Macedonian Association of Anatomists and Morphologists, 2023)
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    Kolovchevski, Nikola
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    Shikole, Emilija
    Diabetic nephropathy (DN) stands out as a primary contributor to end-stage kidney damage. The renin-angiotensin system (RAS) plays a pivotal role in the advancement of DN, making angiotensin receptor blockers (ARBs) particularly noteworthy due to their influence on angiotensin II in DN development. This study investigated the impact of the angiotensin receptor blocker candesartan (CAN) on rats with streptozotocin (STZ)-induced DN, characterized by albuminuria, renal hypertrophy, and mild glomerulosclerosis.DN was induced in normotensive Wistar rats through a single injection of STZ (60 mg/kg ip). STZ administration led to diabetes mellitus (DM) symptoms and DN indicators, such as poor general condition, weight loss, increased kidney weight, elevated serum creatinine levels and BUN, augmented diuresis, and notable albuminuria. These manifestations were prominent at 4 weeks, intensifying further at 8 and 12 weeks post-STZ injection. Commencing candesartan treatment (5 mg/kg BW) at the 4-week mark post-STZ injection significantly alleviated all DN symptoms, reducing serum creatinine values and BUN, albuminuria, and diuresis. Histopathological examination at 8 and 12 weeks revealed that candesartan effectively mitigated glomerulopathy progression, improved the glomerulosclerotic index, and attenuated renal histological abnormalities induced by STZ. In conclusion, candesartan treatment ameliorates STZ-induced nephropathic changes in DM rats.
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    The role of TGF-β1 in the development of diabetic nephropathy experimentally induced by Streptozotocin and the nephroprotective effects of Candesartan
    (Macedonian Association of Anatomists and Morphologists, 2023-12)
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    Shikole Emilija
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    Kolovchevski, Nikola
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    Labachevski, Bojan
    Diabetic nephropathy (DN) stands as a prevalent and severe complication of diabetes mellitus (DM), lacking adequate medical therapy. The molecular mechanisms contributing to glomerular membrane damage involve the overactivity of angiotensin II, heightened expression of nephrin, vascular endothelial growth factor (VEGF), and notably, intraglomerular transforming growth factor TGF-β1. Pharmaceutical treatments targeting hemodynamic disturbances in diabetic nephropathy, such as ACE inhibitors and angiotensin receptor blockers (ARBs), hold promise for DN therapy. This study aimed to assess the role of intraglomerular TGF-β expression in experimentally induced DN in rats and explore the nephroprotective effects of candesartan. Diabetes mellitus was induced through a single intraperitoneal injection of streptozotocin (STZ) at 60 mg/kg, and DN was allowed to develop over four weeks. DM rats were randomly assigned to two groups: STZ (untreated) and STZ+CAN (treated with candesartan at 5 mg/kg/day from week 4 to week 12). STZ administration led to a substantial increase in TGF-β1 expression in the glomeruli, exceeding control levels by 5-6 times. Candesartan treatment demonstrated a significant reduction in glomerular proliferation and subsequent expansion of the mesangial matrix, suggesting a potential mechanism by which these drugs achieve therapeutic effects.
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    ASSESSMENT AND CORELATION OF OXIDATIVE STRESS BETWEEN HEALTHY ADULTS AND ADULT PATIENTS WITH CHRONIC MYELOID LEUKEMIA TREATED WITH IMATINIB
    (Macedonian Association of Anatomists, 2023-05-10)
    Labachevski, Bojan
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    Popova Labachevska, Marija
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    Reactive oxygen species (ROS) are oxygen-containing radicals essential for cell signaling and other vital physiological functions. However, their increased production to an excessive amount can cause alterations in the cellular redox status with consecutive disruption of various normal biological functions. Oxidative stress (OS) occurs when there is an imbalance between ROS production and antioxidant defence mechanisms. Chronic OS results in many DNA modifications, and alterations in DNA repair, leading to DNA lesions of which many can be toxic and/or mutagenic. It is proven that OS is involved in the pathogenesis of chronic myeloid leukaemia (CML), a myeloproliferative neoplasm characterized by uncontrolled proliferation of maturing and mature myeloid cells, caused by the presence of translocation t(9;22) leading to the abnormal BCR-ABL fusion protein. Historically treatment options for this disease were limited, with allogeneic stem cell transplant being the only potential curative therapy, but still with poor prognosis. Fortunately, the introduction of tyrosine kinase inhibitors (TKIs) changed dramatically the prognosis of CML patients, turning a once fatal disease, into a chronic and manageable disorder. Analysis of CML patients treated with TKIs revealed a potential correlation between toxic effects of TKIs and levels of ROS. Even though the innovation of this therapy has significantly improved the life expectancy CML patients, still, in some cases, this treatment becomes ineffective. In order to clarify these observations, we measured and correlated the level of oxidative stress between healthy individuals and patients with chronic myeloid leukemia (CML) treated with first generation tyrosine kinase inhibitors (TKIs).The two markers of oxidative stress, d-ROMs and OSI were significantly higher in the group of patients with CML compared to healthy subjects. No statistically significant differences were observed between CML patients and healthy subjects regarding the oxidative stress marker PAT.
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    Treatment of patients with severe aplastic anaemia with allogeneic stem cell transplantation - single centre experience
    (Macedonian Pharmaceutical Association, Ss. Cyril and Methodius University in Skopje, Faculty of Pharmacy, 2022-04)
    Popova-Labachevska, Marija
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    Aplastic anemia is a rare hematological syndrome caused by bone marrow failure and pancytopenia. It can be either inherited or acquired, the second one being more common. A variety of trigger factors have been implicated in the etiology of acquired aplastic anemia. However, in around 70% of the cases, the reason remains unknown. The two first line treatment options with competitive rate of success are immunosuppressive therapy (IST) and allogeneic stem cell transplantation (SCT). In this retrospective study we present our experience in the treatment of thirteen patients with severe acquired aplastic anemia. Six of the patients mentioned underwent matched unrelated (MUD) SCT and had all been previously treated with IST, except for one patient. The remaining seven patients included in our study underwent matched related SCT, without previous IST. Conditioning regimen, graft versus host prophylaxis, veno occlusive disease prophylaxis, antimicrobial prophylaxis and treatment, source of stem cells, as well as blood counts were taken into account, within a 7 year follow up period on average. Our findings revealed an overall survival rate of 92%. Three cases of graft versus host disease were observed, two within the MUD SCT group of patients (33%) and one within the matched related SCT group (17%). Faster engraftment was reached in patients treated with matched related SCT. One patient demanded a second allogeneic SCT. Comparable to other findings in literature, our study corroborated the favorable outcome of both allogeneic related and unrelated hematopoietic stem cell transplantation in the treatment of patients with severe aplastic anemia.
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    Current treatment options and considerations for patients with relapsed/refractory diffuse large B cell lymphoma in North Macedonia
    (Macedonian Pharmaceutical Association, Ss. Cyril and Methodius University in Skopje, Faculty of Pharmacy, 2021-12)
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    Kocoski, Bozidar
    Autologous stem cell transplantation (ASCT) is considered standard therapeutic approach for patients with relapsed and refractory (R/R) diffuse large B cell lymphoma (DLBCL) that are transplant eligible. For transplant ineligible patients there are few therapeutic options and novel targeted therapies and immunotherapy that are still in development. Treatment of such patients with poor prognosis is considered to be a challenge and there is constant need for new salvage treatment regimens. The aim of this study was to evaluate patients’ characteristics and treatment strategies and considerations for diffuse large B cell lymphoma in our department, and to promote new therapeutic possibilities for R/R patients with NHL DLBCL. A total of 308 patients with NHL were treated at University Clinic for hematology from 2008 until 2020 and 49% (151) of patients with NHL DLBCL were included in this study. Survival analysis of all analyzed relapsed/refractory NHL patients revealed statistically significant better survival in patients with low risk IPI score, disease stage I/II and patients with age <60 years. R CHOP was superior treatment as first line regimen and in the R/R patients, ASCT was statistically superior to other available second line treatment options. Overall survival in patients with DLBCL that achieved complete response after initial treatment was 80%. The incidence of disease relapse after initial treatment in the first 12 months was 18%. Overall survival in all treatment groups was 60% in the evaluated period of 2.5 years follow up. A total of 60% of patients with relapsed forms of NHL DLBCL were candidates for treatment with high-dose chemotherapy and ASCT. Other 40% patients were not candidates for ASCT. In conclusion we confirm the need for new treatment options for patients that relapse after ASCT and that are transplant ineligible. Patients and disease characteristics can be used to identify high-risk patients, classify once relapsed patients and define decision on further treatment
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    PREDICTIVE INSTRUMENT FOR ASYMPTOMATIC EARLY-STAGE CHRONIC LYMPHOCYTIC LEUKEMIA PATIENTS-SINGLE CENTRE EXPERIENCE
    (Macedonian Association of Anatomists, 2021-12-28)
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    Stojanovska, Simona
    Early-stage patients with Chronic lymphocytic leukemia (CLL) are diagnosed without need for treatment, managed with following. The distinct course of the disease is diverse, and planing treatment is barely projected at diagnosis. The aim of the study was first-time evaluation of international prognostic score to predict time to first treatment (TFT) in patients with early stage CLL (International Prognostic Score for Early-stage CLL IPS-E). Retrospective study of asymptomatic patients with CLL at early stage of disease in a period of time from January 2011 to January 2021. The median follow-up was 60 months (1-120 months). Individual patient data from 120 treatment-naïve CLL patients with Binet A stage were analyzed to composed International Prognostic Score for Early-stage CLL and correlated with Time to treatment failure (TTF). Using IPS-E patients were distributed in three groups: low risk with 7, 5%, intermediate risk with 44 % and high risk patients 49%. Average TFS was 29, 3 months for low risk group, 28, 6 months for intermediate-risk group and 27,1 months for high-risk group. Using prognostic nomogram we calculated 5 years probability of survival for low, intermediate and high risk group: 73%, 72% and 70% respectively with projected median survival of 9, 1 year for low risk group and 9, 0 year, 8, 9 years for intermediate and high risk groups.