19 results on '"Canecki Varžić S"'
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2. Twice-daily insulin degludec/insulin aspart provides superior fasting plasma glucose control and a reduced rate of hypoglycaemia compared with biphasic insulin aspart 30 in insulin-naïve adults with Type 2 diabetes
- Author
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Franek, E., primary, Haluzík, M., additional, Canecki Varžić, S., additional, Sargin, M., additional, Macura, S., additional, Zacho, J., additional, and Christiansen, J. S., additional
- Published
- 2015
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3. Twice-daily insulin degludec/insulin aspart provides superior fasting plasma glucose control and a reduced rate of hypoglycaemia compared with biphasic insulin aspart 30 in insulin-naïve adults with Type 2 diabetes.
- Author
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Franek, E., Haluzík, M., Canecki Varžić, S., Sargin, M., Macura, S., Zacho, J., and Christiansen, J. S.
- Subjects
BLOOD sugar analysis ,HYPOGLYCEMIA ,TYPE 2 diabetes complications ,BLOOD sugar monitoring ,BODY weight ,CONFIDENCE intervals ,DRUG side effects ,ETHNIC groups ,GLYCOSYLATED hemoglobin ,INSULIN ,TYPE 2 diabetes ,PATIENT safety ,PHARMACEUTICAL arithmetic ,RACE ,RESEARCH funding ,DATA analysis ,BODY mass index ,DISEASE duration ,GLYCEMIC control ,PREVENTION ,DISEASE risk factors - Abstract
Aim To evaluate the efficacy and safety of twice-daily insulin degludec/insulin aspart vs. twice-daily biphasic insulin aspart 30 in people with Type 2 diabetes mellitus who were naïve to insulin. Methods In this 26-week, multinational, open-label, controlled, two-arm, parallel-group, treat-to-target trial, participants [mean (± sd) age 58.9 (±8.9) years, duration of diabetes 9.5 (±5.9) years, HbA
1c 68 (±8.7) mmol/mol or 8.4 (±0.8)% and BMI 31.2 (±4.2) kg/m2 ) were randomized (1:1) to insulin degludec/insulin aspart ( n = 197) or biphasic insulin aspart 30 ( n = 197), administered with breakfast and the main evening meal, titrated to a self-monitored plasma glucose target > 3.9 and ≤ 5.0 mmol/l. Results The mean HbA1c was reduced to 49 mmol/mol (6.6%) with insulin degludec/insulin aspart and 48 mmol/mol (6.5%) with biphasic insulin aspart 30. Insulin degludec/insulin aspart achieved the prespecified non-inferiority margin (estimated treatment difference 0.02%; 95% CI −0.12, 0.17). Insulin degludec/insulin aspart was superior in lowering fasting plasma glucose (estimated treatment difference −1.00 mmol/l; 95% CI −1.4, −0.6; P < 0.001) and reducing overall and nocturnal confirmed hypoglycaemia at a similar overall insulin dose compared with biphasic insulin aspart 30. Similar proportions of participants in each arm experienced severe hypoglycaemia. Adverse events were equally distributed. Conclusions Consistent with previous findings, insulin degludec/insulin aspart twice daily effectively improved long-term glycaemic control, with superior reductions in FPG, and significantly less overall and nocturnal confirmed hypoglycaemia compared with biphasic insulin aspart 30 in people with Type 2 diabetes who were insulin-naïve. [ABSTRACT FROM AUTHOR]- Published
- 2016
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4. PO231 IDEGASP PROVIDES SUPERIOR FPG CONTROL AND REDUCED HYPOGLYCEMIA VS BIASP 30 IN INSULIN-NAIVE ADULTS WITH TYPE 2 DIABETES: A RANDOMIZED PHASE 3 TRIAL
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Franek, E., Haluzik, M., Canecki-Varzic, S., Sargin, M., Macura, S., Zacho, J., and Christiansen, J. Sandahl
- Published
- 2014
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5. The Role of Active Brown Adipose Tissue in Patients With Pheochromocytoma or Paraganglioma.
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Onyema MC, Oštarijaš E, Zair Z, Roy A, Minhas R, Lajeunesse-Trempe F, Kearney J, Drakou EE, Grossman AB, Aylwin SJ, Canecki-Varžić S, and Dimitriadis GK
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- Humans, Positron-Emission Tomography, Catecholamines metabolism, Pheochromocytoma metabolism, Pheochromocytoma epidemiology, Pheochromocytoma pathology, Adrenal Gland Neoplasms metabolism, Adrenal Gland Neoplasms diagnostic imaging, Adrenal Gland Neoplasms epidemiology, Adrenal Gland Neoplasms pathology, Adipose Tissue, Brown metabolism, Adipose Tissue, Brown diagnostic imaging, Paraganglioma diagnostic imaging, Paraganglioma metabolism, Paraganglioma pathology, Paraganglioma epidemiology, Fluorodeoxyglucose F18
- Abstract
Objectives: Metabolically-active brown adipose tissue (aBAT) is a common finding on
18 fluorodeoxyglucose positron emission tomography (FDG-PET) imaging in patients with pheochromocytoma or paraganglioma (PPGL). In addition to its clinical significance, we aimed to explore the prevalence of this finding on FDG-PET imaging in patients with PPGL., Methods: We conducted a systematic review and meta-analysis of prospective and retrospective studies. Publications were identified through searches in MEDLINE/PubMed, Embase, and SCOPUS from inception until 2022-11-26, with an update check performed on 2024-05-02. Eligible studies included patients with PPGL who had completed FDG-PET imaging. Data on catecholamine levels stratified by the presence of aBAT were extracted and pooled using the random-effects model with the inverse variance method. For the quantitative synthesis, we used standardized mean differences and meta-analysis of proportions. A risk of bias assessment was performed using the Quality in Prognostic Studies tool., Results: Our search yielded 6 studies suitable for inclusion. Pooled data showed a statistically significant positive difference in isolated demethylated catecholamine levels in aBAT positive groups compared to aBAT negative. No significant differences were found in multiple domains, including tumor size, tumor burden, germline mutations, or location. The proportion of patients with PPGL who present with aBAT stands at approximately 25%., Conclusions: The demethylated metabolite levels could have potential use in predicting the presence of active brown adipose tissue in patients with PPGL. There is no convincing evidence of increased aBAT prevalence in patients with PPGL and germline mutations. There was, however, evidence suggesting that the presence of aBAT may confer poorer outcomes and decreased life expectancy., Competing Interests: Disclosure G.K.D. has in the past received research grants from the NIHR, Novo Nordisk UK Research Foundation, and DDM, as well as payment or honoraria for lectures, presentations, speakers’ bureaus, manuscript writing, or educational events from Novo Nordisk, Rhythm Pharmaceuticals, J&J/Ethicon, and Medtronic. E.O. has received an honorarium for a lecture by Krka. S.C.V. has received research grants, payment or honoraria for lectures, presentations, or educational events from Novo Nordisk, Eli Lilly, Medtronic, and Krka., (Copyright © 2024 AACE. Published by Elsevier Inc. All rights reserved.)- Published
- 2025
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6. Effective Strategies and a Ten-Point Plan for Cardio-Kidney-Metabolic Health in Croatia: An Expert Opinion.
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Reiner Ž, Jelaković B, Miličić D, Bubaš M, Balint I, Bašić Jukić N, Bralić Lang V, Beroš V, Brkić Biloš I, Canecki Varžić S, Capak K, Kralj V, Ljubas A, Malojčić B, Peršić V, Portolan Pajić I, Rahelić D, Ružić A, Sokol T, Soldo A, and Pećin I
- Abstract
Cardiovascular diseases (CVD) are the leading cause of morbidity and mortality worldwide, including in Croatia. Since most patients have multiple disorders and diseases caused largely by the same risk factors, and as it is essential to approach each patient as a person with all disorders, today, we are talking about a new paradigm-cardio-renal-metabolic (CKM) syndrome and cardio-renal-metabolic health, which necessarily includes brain health. Elevated systolic blood pressure, LDL cholesterol, smoking, obesity, diabetes, impaired renal function or chronic kidney disease, which all stem from insufficient physical activity, an unhealthy diet with excessive intake of table salt, and air pollution, are the leading causes of overall morbidity and mortality from CKM diseases, especially mortality from CVD. Experts from various fields key to CKM health have written this document with the aim of integrating it as part of the national plan for the prevention of chronic non-communicable diseases with a focus on CVD, which should become mandatory and be based on the existing guidelines of professional societies.
- Published
- 2024
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7. Molecular Mechanisms Affecting Statin Pharmacokinetics after Bariatric Surgery.
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Petrinović M, Majetić D, Bakula M, Pećin I, Fabris-Vitković D, Deškin M, Tešanović Perković D, Bakula M, Gradišer M, Ćurčić IB, and Canecki-Varžić S
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- Humans, Obesity surgery, Obesity metabolism, Dyslipidemias drug therapy, Bariatric Surgery methods, Hydroxymethylglutaryl-CoA Reductase Inhibitors pharmacokinetics, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use
- Abstract
According to recent data, one in eight people in the world struggle with obesity. Obesity management is increasingly dependent on bariatric surgical interventions, as the combination of lifestyle modifications and pharmacotherapy could have a modest long-term effect. Surgery is recommended only for individuals whose body mass index (BMI) ≥ 40 kg/m
2 and ≥ 35 kg/m2 in the presence of weight-related comorbidities. The most commonly performed procedures are sleeve gastrectomy and roux-en-Y gastric bypass. Pharmacokinetic and pharmacodynamic alterations occur as a result of the anatomical and physiological changes caused by surgery, which further differ depending on physicochemical drug factors and factors related to the dosage form. The following modifications are distinguished based on the type of bariatric surgery performed. Most bariatric patients have accompanying comorbidities, including dyslipidemia treated with hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors or statins. Significant improvements in the lipid profile are observed early in the postoperative period. The data reported in this review on statin pharmacokinetic alterations have demonstrated substantial inter- and intravariability, making it difficult to adopt clear guidelines. Based on the current literature review, reducing the statin dose to the lowest effective with continuous monitoring is considered an optimal approach in clinical practice.- Published
- 2024
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8. The Interplay between Dietary Habits and Glycemic Control in Type 1 Diabetes: A Comprehensive Prospective FGM Study.
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Gradinjan Centner M, Čačić Kenjerić D, Schönberger E, Centner H, Sladić Rimac D, Steiner K, Marušić R, Bakula M, Fabris Vitković D, Mihaljević I, Ćurčić IB, and Canecki Varžić S
- Abstract
Type 1 diabetes has become prevalent among the adult population, who have increasingly gained access to sensing technology. This study delved into the impact of diet, nutritional status, and the use of a continuous glucose monitoring system (CGM) on glycemic regulation among adults diagnosed with T1D. Employing a prospective design, data were gathered from 151 participants aged 18-60 across multiple cycles. Participants utilized the FreeStyle Libre (FSL) Flash Glucose Monitoring (FGM) System and provided dietary details via questionnaires and diaries. The findings unveiled correlations between dietary patterns and glycemic control, with higher protein intake associated with improved glycated hemoglobin A1C values ( p = 0.019), yet elevated fat and protein consumption was linked to heightened rates of hyperglycemia. Conversely, no significant relationship was observed between dietary variables and hypoglycemia occurrence. Interestingly, subjects with more readings of glucose levels consumed fewer carbohydrates ( p = 0.004) and more proteins ( p = 0.000). Furthermore, physical activity and marital status correlated with glycemic stability, while higher education was associated with enhanced glycemic control ( p = 0.021). This study confirmed the importance of structured education on glycemic regulation and the importance of dietary patterns in glucose management. Also, the educational role of the FGM system in changing dietary habits was confirmed, which is one of the key factors for improving glycemic regulation in continuous glucose monitoring system users.
- Published
- 2024
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9. Implications of Dysnatremia and Endocrine Disturbances in COVID-19 Patients.
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Zlosa M, Grubišić B, Švitek L, Sabadi D, Canecki-Varžić S, Mihaljević I, Bilić-Ćurčić I, and Kizivat T
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- Humans, Endocrine System Diseases etiology, Endocrine System Diseases metabolism, Sodium metabolism, Hypothyroidism metabolism, Hypothyroidism complications, COVID-19 complications, COVID-19 metabolism, Renin-Angiotensin System, Hyponatremia etiology, Hyponatremia metabolism, SARS-CoV-2
- Abstract
Sodium imbalance is a common electrolyte disturbance in COVID-19, often linked to disruptions in hormonal regulation. This review explores the relationship between sodium dysregulation and endocrine disturbances, particularly focusing on primary and secondary hypothyroidism, hypocortisolism, and the renin-angiotensin-aldosterone system (RAAS). Hypocortisolism in COVID-19, due to adrenal insufficiency or secondary to pituitary dysfunction, can lead to hyponatremia through inadequate cortisol levels, which impair renal free water excretion and enhance antidiuretic hormone (ADH) secretion. Similarly, hypothyroidism is associated with decreased renal blood flow and the glomerular filtration rate (GFR), which also increases ADH activity, leading to water retention and dilutional hyponatremia. Furthermore, COVID-19 can disrupt RAAS (primarily through its interaction with the angiotensin-converting enzyme 2 (ACE2) receptor), diminishing aldosterone secretion and further contributing to sodium loss and hyponatremia. These hormonal disruptions suggest that sodium imbalance in COVID-19 is multifactorial and warrants further investigation into the complex interplay between COVID-19, endocrine function, and sodium homeostasis. Future research should focus on understanding these mechanisms to develop management algorithms that address both sodium imbalance and underlying hormonal disturbances in order to improve prognosis and outcomes in COVID-19 patients.
- Published
- 2024
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10. The Reasons for the Low Uptake of New Antidiabetic Drugs with Cardiovascular Effects-A Family Doctor Perspective.
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Kurevija T, Šojat D, Bosnić Z, Mujaj B, Canecki Varžić S, and Majnarić Trtica L
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Chronic diseases, such as type 2 diabetes (T2D), are difficult to manage because they demand continuous therapeutic review and monitoring. Beyond achieving the target HbA1c, new guidelines for the therapy of T2D have been introduced with the new groups of antidiabetics, glucagon-like peptide-1 receptor agonists (GLP-1ra) and sodium-glucose cotransporter-2 inhibitors (SGLT2-in). Despite new guidelines, clinical inertia, which can be caused by physicians, patients or the healthcare system, results in T2D not being effectively managed. This opinion paper explores the shift in T2D treatment, challenging assumptions and evidence-based recommendations, particularly for family physicians, considering the patient's overall situation in decision-making. We looked for the possible reasons for clinical inertia and the poor application of guidelines in the management of T2D. Guidelines for antidiabetic drugs should be more precise, providing case studies and clinical examples to define clinical contexts and contraindications. Knowledge communication can improve confidence and should include clear statements on areas of decision-making not supported by evidence. Precision medicine initiatives in diabetes aim to identify subcategories of T2D patients (including frail patients) using clustering techniques from data science applications, focusing on CV and poor treatment outcomes. Clear, unconditional recommendations for personalized T2D management may encourage drug prescription, especially for family physicians dealing with diverse patient contexts and clinical settings.
- Published
- 2024
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11. Syndrome of inappropriate antidiuretic hormone secretion as an adverse reaction of ciprofloxacin: a case report and literature review.
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Švitek L, Grubišić B, Schonberger E, Zlosa M, Sabadi D, Lišnjić D, Canecki-Varžić S, Bilić-Ćurčić I, and Mandić S
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- Male, Humans, Aged, Ciprofloxacin adverse effects, Sodium, Inappropriate ADH Syndrome chemically induced, Inappropriate ADH Syndrome diagnosis, Inappropriate ADH Syndrome therapy, Hyponatremia chemically induced, Hyponatremia diagnosis
- Abstract
Antidiuretic hormone (ADH) is secreted by the posterior pituitary gland. Unsuppressed release of ADH leads to hyponatremia. This condition is referred to as syndrome of inappropriate antidiuretic hormone secretion (SIADH). Hereby, a case report is presented on ciprofloxacin-induced SIADH. A 67-year-old male patient was examined in the emergency room with symptoms of lethargy, headache, lack of attention, and a generally depressed mood lasting for three days. One week prior, empirical antimicrobial therapy involving ciprofloxacin for prostatitis was initiated. Laboratory analysis showed no relevant abnormalities except for hyponatremia (Na = 129 mmol/L). Chronic hyponatremia, thyroid dysfunction, and adrenal dysfunction were ruled out. Serum osmolality was 263 mOsmol/kg, urine osmolality was 206 mOsmol/kg, and urine sodium was 39 mmol/L. Given that all criteria for SIADH were met, ciprofloxacin was discontinued, and fluid restriction was advised. Four days later, the patient's serum sodium concentrations nearly normalized (Na = 135 mmol/L), and all symptoms resolved. The Naranjo Scale yielded a score of 8, supporting the likelihood of a probable adverse reaction to ciprofloxacin. This case is presented to raise awareness among clinicians about the potential of ciprofloxacin to cause even mild hyponatremia., Competing Interests: Potential conflict of interest None declared., (Croatian Society of Medical Biochemistry and Laboratory Medicine.)
- Published
- 2024
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12. Prevalence of familial hypercholesterolemia in patients with acute coronary syndrome.
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Dragila Ž, Lozert M, Canecki-Varžić S, and Selthofer-Relatić K
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Aim To investigate the prevalence of familial hypercholesterolemia in patients with acute coronary syndrome (ACS). Methods The study included fifteen patients with first or repeated ACS and treated/nontreated dyslipidaemia admitted to the Department of Cardiovascular Diseases of Clinical Hospital Centre Osijek between 1 January 2020 and 1 January 2021. The cut-off value of low-density lipoprotein (LDL)-C was 4.5mmol/L as a possible cut-off value for familial hypercholesterolemia presence. Data were collected from medical history and during patient's follow-up. Results Included patients that fulfilled criteria were predominantly male - 14 (93%), mean age 61 years. The median level of LDL cholesterol at admission because of ACS was 5.14 mmol/L, whereas the follow-up level after one year was 2.27 mmol/L (p=0.001). At first follow-up, 7 (46%) patients were treated with atorvastatin 80 mg or rosuvastatin 40 mg, 3 (20%) atorvastatin 80mg + ezetimibe 10mg, 2 (13%) with rosuvastatin 40 mg+ ezetimibe 10 mg, other patients were treated with a lower dose of statin or ezetimibe. According to LDL-C profile and by calculating the Dutch Lipid Clinic Network Score, one (of 15) patient was categorized as having definite familial hypercholesterolemia and two (of 15) as having probable familial hypercholesterolemia leading to the use of triple hypolipidemic therapy (statin+ezetimibe+PCSK9 inhibitor) in 2 (13%) patients (one female and one male). Conclusion LDL-C level of 4.5 mmol/L and higher represents an indication for screening for familial hypercholesterolemia in patients with ACS. The prevalence of familial hypercholesterolemia in ACS, estimated by the Dutch Lipid Clinic Network Score, could be higher than previously reported., (Copyright© by the Medical Assotiation of Zenica-Doboj Canton.)
- Published
- 2024
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13. Immunomodulatory Effects of SGLT2 Inhibitors-Targeting Inflammation and Oxidative Stress in Aging.
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Schönberger E, Mihaljević V, Steiner K, Šarić S, Kurevija T, Majnarić LT, Bilić Ćurčić I, and Canecki-Varžić S
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- Humans, Aged, Oxidative Stress, Inflammation drug therapy, Hypoglycemic Agents, Sodium-Glucose Transporter 2 Inhibitors pharmacology, Sodium-Glucose Transporter 2 Inhibitors therapeutic use
- Abstract
Given that the increase in the aging population has grown into one of the largest public health issues, inflammation and oxidative stress, which are closely associated with the aging process, became a focus of recent research. Sodium-glucose co-transporter 2 (SGLT2) inhibitors, a group of drugs initially developed as oral antidiabetics, have shown many beneficial effects over time, including improvement in renal function and cardioprotective effects. It has been shown that SGLT2 inhibitors, as a drug class, have an immunomodulatory and antioxidative effect, affecting endothelial function as well as metabolic parameters. Therefore, it is not surprising that various studies have investigated the potential mechanisms of action of SGLT2 inhibitors in age-related diseases. The proposed mechanisms by which SGLT2 inhibitors can achieve their anti-inflammatory effects include influence on AMPK/SIRT1/PGC-1α signaling, various cytokines, and the NLRP3 inflammasome. The antioxidative effect is related to their action on mitochondria and their influence on the signaling pathways of transforming growth factor β and nuclear erythroid 2-related factor 2/antioxidant response element. Also, SGLT2 inhibitors achieve their anti-inflammatory and antioxidative effects by affecting metabolic parameters, such as uric acid reduction, stimulation of ketogenesis, reduction of body weight, lipolysis, and epicardial fat tissue. Finally, SGLT2 inhibitors display anti-atherosclerotic effects that modulate inflammatory reactions, potentially resulting in improvement in endothelial function. This narrative review offers a complete and comprehensive overview of the possible pathophysiologic mechanisms of the SGLT2 inhibitors involved in the aging process and development of age-related disease. However, in order to use SGLT2 inhibitor drugs as an anti-aging therapy, further basic and clinical research is needed to elucidate the potential effects and complex mechanisms they have on inflammation processes.
- Published
- 2023
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14. The Association of Personality Traits and Parameters of Glycemic Regulation in Type 1 Diabetes Mellitus Patients Using isCGM.
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Sladić Rimac D, Bilić Ćurčić I, Prpić Križevac I, Schonberger E, Centner MG, Barišić M, and Canecki Varžić S
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This study aimed to examine the impact of personality on glycemic regulation in adult patients with type 1 diabetes mellitus (T1DM). The study group consisted of subjects with T1DM, who were ≥ 18 years of age. The study was conducted in two phases: At baseline, subjects completed the Croatian version of the International Personality Item Pool scale (IPIP50s) and a questionnaire designed to gather socioeconomic data, duration of diabetes, presence of chronic complications, presence of cardiovascular risk factors, frequency, and type of pre-existing hypoglycemic episodes per week. Blood and urine samples were collected and body mass index (BMI) was calculated. Each participant was provided with the intermittently scanned glucose monitoring system (isCGM) Freestyle Libre. During the second visit (3 months from the start of the trial), glycemic parameters were collected from the reports generated from the Freestyle Libre system. Estimated glycated hemoglobin (HbA1c) values were significantly lower after three months compared to baseline HbA1c (Wilcoxon test, p < 0.001). An inverse correlation between the number of daily scans and degree of extraversion among subjects was observed, e.g., higher degrees of extraversion resulted in lower numbers of daily scans, while lower degrees of extraversion, i.e., introvertedness, resulted in higher numbers of daily scans (Rho = −0.238 p = 0.009). There was a positive correlation between emotional stability and time spent in hypoglycemia (Rho = 0.214; p = 0.02). In addition, a shorter duration of diabetes was associated with higher percentages of TIR and vice versa (p = 0.02). Investigating personality traits can be a useful tool for identifying patients predisposed to hypoglycemia and lower scanning frequency. Patients with a longer history of T1DM require closer follow-up and should be re-educated when necessary.
- Published
- 2022
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15. Association between arsenic exposure and biomarkers of type 2 diabetes mellitus in a Croatian population: A comparative observational pilot study.
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Lucio M, Barbir R, Vučić Lovrenčić M, Canecki Varžić S, Ljubić S, Smirčić Duvnjak L, Šerić V, Milić M, Tariba Lovaković B, Krivohlavek A, Vinković Vrček I, and Michalke B
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- Adult, Arsenic, Biomarkers, Croatia, Cross-Sectional Studies, Drinking Water, Environmental Exposure, Humans, Pilot Projects, Water Pollutants, Chemical, Diabetes Mellitus, Type 2
- Abstract
Chronic exposure to high inorganic As levels in drinking water has been related to many diseases, including type 2 diabetes mellitus (T2D). The association with low and moderate As levels, however, remains controversial and has yet not been studied in European populations. This study aimed to investigate possible association between As exposure and biomarkers of T2D in Croatian population. Observation recruited 86 adults from Eastern Croatia, where groundwater is contaminated with inorganic As, and 116 adults from Western Croatia, where As levels in drinking water are low. Both populations were divided in patient groups (T2D or prediabetes) and healthy controls. Exposure was assessed by determining total As in blood and urine and As metabolites in urine. Eastern Croatian population had a significantly higher content of As in urine than Western, whereas the opposite was true for arsenobetain. Total As and As metabolites in urine positively correlated with hemoglobin A1c (HbA1c) and negatively with albuminuria. This study provides important preliminary data on the levels of As in urine and blood and their association with biomarkers of T2D in Croatian population exposed to low or moderate levels of As through drinking water as a solid basis for further research of the pathophysiological effects of such As exposure on the status and complications of diabetes., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
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16. INTERACTIONS AMONG INTERLEUKIN-6, C-REACTIVE PROTEIN AND INTERLEUKIN-6 (-174) G/C POLYMORPHISM IN THE PATHOGENESIS OF CROHN'S DISEASE AND ULCERATIVE COLITIS.
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Takač B, Mihaljević S, Glavaš-Obrovac L, Kibel A, Suver-Stević M, Canecki-Varžić S, Samardžija M, Rajkovac I, Kovač D, and Štefanić M
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- Case-Control Studies, Cross-Sectional Studies, Humans, Polymorphism, Genetic, C-Reactive Protein analysis, Colitis, Ulcerative genetics, Crohn Disease genetics, Inflammatory Bowel Diseases, Interleukin-6 genetics
- Abstract
Inflammatory bowel diseases are multifactorial disorders the clinical manifestation of which depends on the interaction among immune response, genetic and environmental factors. There is growing evidence that cytokines and gene polymorphisms have an important role in disease pathogenesis in various populations although molecular mechanism of their signaling and interactions is not fully understood yet. The present study aimed at exploring the effects of interleukin-6, C-reactive protein and interleukin-6 rs1800795 polymorphism on the development of Crohn's disease, ulcerative colitis and inflammatory bowel diseases overall and at determining differences between inflammatory bowel disease patients and healthy controls. A total of 132 inflammatory bowel disease patients and 71 healthy blood donors were investigated. In order to assess the clinical relevance of interleukin-6 and C-reactive protein serum concentration and interleukin-6 rs1800795 single nucleotide polymorphism in patients with Crohn's disease and ulcerative colitis, we performed a cross-sectional, case-control study. Quantitative assessment of serum interleukin-6 and C-reactive protein was performed with solid-phase, enzyme-labeled, chemiluminescent sequential immunometric and immunoturbidimetric assay, respectively. A real-time fluorescence resonance energy transfer-based method on a LightCyclerTM PCR 1.2 was used for genotyping of IL-6 rs1800795 polymorphism. Both interleukin-6 and C-reactive protein serum levels were elevated in Crohn's disease and ulcerative colitis patients. Positive correlations were observed between C-reactive protein and interleukin-6 serum concentration and ulcerative colitis activity index as measured by modified Truelove-Witt's severity index scale. C-reactive protein serum level was higher in Crohn's disease patients without intestinal resection than in Crohn's disease patients with prior intestinal resection. In ulcerative colitis patients, interleukin-6 and C-reactive protein serum levels were statistically significantly higher in CC interleukin-6 genotype in comparison to GG+GC genotype. Analysis of the promoter region of the interleukin-6 rs1800795 gene polymorphism showed no statistically significant difference in allele frequency either between inflammatory bowel disease patients and healthy controls or between the two inflammatory bowel disease phenotypes and healthy controls. Associations presented in this study give a potentially important insight into the role of interleukin-6 and C-reactive protein signaling and interleukin-6 polymorphism in the pathogenesis of Crohn's disease and ulcerative colitis disease.
- Published
- 2020
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17. Association Between Interleukin-10 Gene (-1082g/A) Polymorphism and Type 2 Diabetes, Diabetes-Related Traits, and Microvascular Complications in the Croatian Population.
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Canecki-Varžić S, Prpić-Križevac I, Mihaljević S, Bilić-Ćurčić I, Alkhamis T, Wagner J, Škrlec I, and Barbić J
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- Diabetic Nephropathies genetics, Gene Frequency, Genotype, Humans, Obesity, Diabetes Mellitus, Type 2 genetics, Interleukin-10 genetics, Polymorphism, Single Nucleotide
- Abstract
Interleukin (IL)-10 is an anti-inflammatory cytokine, and a decrease in its secretion is associated with obesity, metabolic syndrome and type 2 diabetes. However, it has not been established whether the intensity of the immune response during diabetes-associated chronic inflammation affects the development and/or progression of type 2 diabetes and its microvascular complications. The aim of this study was to investigate the role of single nucleotide polymorphism (SNP)-1082G/A for IL-10 gene in development of diabetes type 2 and its complications. DNA was extracted from blood cells of 240 overweight/obese subjects for IL-10 genotyping. Based on the presence of diabetes type 2, patients were divided in two groups: experimental group of 144 patients with diabetes type 2 and control group of 96 age- and gender-matched subjects without diabetes. Compared to control group, diabetic group had higher levels of leukocytes (p=0.012), fibrinogen (p=0.049) and plasminogen activator inhibitor-1 (PAI-1) (p=0.009), and lower levels of albumin (p=0.001). There were no differences in the frequency of SNP-1082G/A for IL-10 gene between the two groups (p=0.654). When considering diabetes related traits in all subjects in relation to specific genotype, a group with homozygous (AA) genotype had higher values of the mean fasting glucose (p<0.000001), HbA1c (p<0.000001) and HOMA-IR (p=0.003632), while the mean HOMA-B value (p=0.000178) was lower when compared to the groups with GG and GA genotypes. There was no difference in devel-opment of diabetic nephropathy, retinopathy and polyneuropathy between the IL-10 polymorphism genotypes. In conclusion, obese diabetes type 2 patients had an increased inflammation activity com-pared to obese non-diabetic individuals. There was no association of the investigated polymorphisms and development of type 2 diabetes and its microvascular complications. However, diabetes related traits clearly depended on the presence of specific IL-10 genotype.
- Published
- 2018
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18. Plasminogen activator inhibitor-1 concentrations and bone mineral density in postmenopausal women with type 2 diabetes mellitus.
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Canecki-Varžić S, Prpić-Križevac I, and Bilić-Ćurčić I
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- Absorptiometry, Photon, Adiposity physiology, Aged, Body Weights and Measures, Female, Humans, Lumbar Vertebrae, Middle Aged, Bone Density, Diabetes Mellitus, Type 2 blood, Diabetes Mellitus, Type 2 physiopathology, Plasminogen Activator Inhibitor 1 blood, Postmenopause blood, Postmenopause physiology
- Abstract
Background: Women with type 2 diabetes mellitus (T2DM) have a higher risk of fractures despite increased bone mineral density (BMD). In experimental studies a potential role of plasminogen activator inhibitor-1 (PAI-1) in bone remodeling is suggested but studies in humans are lacking. This is a first study in humans investigating whether circulated levels of PAI-1 in postmenopausal women with T2DM are related to BMD and adiposity., Methods: Anthropometric variables, PAI-1 and insulin levels, serum lipids and bone turnover markers were measured in 127 postmenopausal women with T2DM. A total of 117 female patients were divided according to lumbar spine BMD measurements via dual-energy x-ray absorptiometry in three groups: 47 with osteopenia, 21 with osteoporosis and 49 with normal BMD., Results: Diabetic patients with normal BMD had significantly higher BMI, greater waist circumference and lower bone turnover markers than diabetics with osteopenia and osteoporosis. PAI-1 was lower in diabetics with osteoporosis and osteopenia compared with diabetics with normal BMD. Multiple regression analysis revealed insulin, triglycerides levels, pyrilinks and beta blocker therapy to be the strongest predictors of PAI-1 levels. PAI-1 levels correlated with both L-BMD and hip BMD, but after adjustment for age and BMI association was no longer significant., Conclusion: Our findings suggest that elevated PAI-1 levels are associated with higher BMD in obese diabetic patients but the possible implications of this finding and underlying mechanisms still remain unclear. Obviously, metabolic parameters, may affect both BMD and PAI-levels, and association of PAI-1 and BMD could be indirect. However, as pyrilinks is also independently and significantly negatively correlated to PAI-1 its direct involvement in bone metabolism is also plausible. Further investigations are needed to elucidate the nature of interaction of this matrix modulator in relation to energy and bone metabolism in humans.
- Published
- 2016
- Full Text
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19. Hyperactivity of the hypothalamic-pituitary-adrenal axis in patients with type 2 diabetes and relations with insulin resistance and chronic complications.
- Author
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Prpić-Križevac I, Canecki-Varžić S, and Bilić-Ćurčić I
- Subjects
- Chronic Disease, Female, Humans, Male, Middle Aged, Adrenocorticotropic Hormone blood, Diabetes Mellitus, Type 2 physiopathology, Hydrocortisone blood, Hypothalamo-Hypophyseal System physiopathology, Insulin Resistance, Pituitary-Adrenal System physiopathology
- Abstract
Objective: Connection between abdominal obesity, type 2 diabetes, and the hypothalamic-pituitary-adrenal (HPA) axis activity remains unclear. The aim of this study was to measure HPA axis activity in 121 type 2 diabetics, in 29 obese subjects, and 19 control subjects., Research Design and Methods: Physical examination, anthropometric measures, psychological questionnaire, psychiatric interview, neurological and ophthalmologic examination were performed. Biochemical parameters, urinary free cortisol levels (UFC), cortisol and ACTH levels at 8 and 16 h, cortisol levels after overnight suppression with 1 mg dexamethasone followed by ACTH test in 30 and 60 min were measured. Groups were stratified in relation to obesity, body fat distribution, and chronic complications., Results: UFC and postdexamethasone cortisol were significantly increased in diabetic patients compared with both obese subjects (p < 0.01) and control group (p < 0.05), regardless to diabetic complications and obesity. Postdexamethasone cortisol was correlated with waist circumference. ACTH-induced cortisol levels were significantly higher in all type 2 diabetic patients. An independent association was found between AUC cortisol in ACTH test and insulin resistance. Multiple regression analysis showed that waist circumference was independently associated with sex, fasting plasma insulin, morning cortisol, and AUC of cortisol in ACTH test (R(2) = 0.334,p < 0.0000)., Conclusions: In type 2 diabetic patients, the HPA axis is clearly hyperactive as evident in increased urinary free cortisol, diminished cortisol suppression after dexamethasone and increased ACTH-induced cortisol levels. Abdominal obesity and the presence of chronic complications increased the HPA axis hyperactivity in type 2 diabetes. Augmentation of positive feedback is associated with insulin resistance and negative feedback with abdominal obesity.
- Published
- 2012
- Full Text
- View/download PDF
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