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Žukauskaitė Z, Druteikienė R, Tarasiuk N, Tautkus S, Niaura G, Ignatjev I, Baltušnikas A, Konstantinova M, Maceika E, Kazakevičiūtė-Jakučiūnienė L, Buivydas Š, Jasinevičienė D, Gvozdaitė R. Separation of anthropogenic radionuclides from aqueous environment using raw and modified biosorbents. J Environ Radioact 2022; 244-245:106829. [PMID: 35121277 DOI: 10.1016/j.jenvrad.2022.106829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
In this study, two types of biosorbents were used to remove 137Cs and plutonium isotopes from aqueous solutions - moss (Ptilium crista - castrensis) and oak sawdust (Quercus robur), both in the form of natural and modified state. Sorbent modification significantly increases the sorbent surface area (for moss sorbents - from 4.0 to 47.2 m2/g, and for sawdust sorbents - from 1.1 to 26.3 m2/g), pore volume (from 10-3 to 10-2), concentration and amount of basic cations and anions, as well as active functional groups on the sorbent surface. The main functional groups on the surface of natural sorbents modified with iron hydroxide interacting with analytes are carboxyl and hydroxyl groups. For carbonized sawdust and its subsequent activation with concentrated HCl, in addition to carboxyl and hydroxyl groups, acetyl groups also become active. Carbonated sawdust treated with HCl showed the highest average removal efficiency and sorption capacity for radiocesium and plutonium isotopes in laboratory column experiments - for 137Cs ∼78.6% and ∼196.6 Bq/g and for 239+240Pu ∼83% and ∼41.5 Bq/g, respectively. The moss and moss modified with iron hydroxide also showed good properties of adsorbing plutonium isotopes in field (in-situ) experiments. The best results on the sorption of 137Cs in field experiments were shown by carbonated sawdust activated with HCl, and for isotopes of plutonium - the raw moss and moss modified with iron hydroxide. The results of the study showed that sorbents can be used not only for purification of water from plutonium isotopes but allow the operational sampling and more accurate measurement of radiocesium and plutonium isotopes in the fresh water reservoirs by the dynamic flow method.
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Affiliation(s)
- Z Žukauskaitė
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania.
| | - R Druteikienė
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania.
| | - N Tarasiuk
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - S Tautkus
- Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko st. 24, 03225, Vilnius, Lithuania
| | - G Niaura
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - I Ignatjev
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - A Baltušnikas
- Lithuanian Energy Institute Public institution, Breslaujos st. 3, LT-44403, Kaunas, Lithuania
| | - M Konstantinova
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - E Maceika
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - L Kazakevičiūtė-Jakučiūnienė
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - Š Buivydas
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - D Jasinevičienė
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
| | - R Gvozdaitė
- State Research Institute Center for Physical Sciences and Technology Public Institution, Savanorių ave. 231, LT-02300, Vilnius, Lithuania
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Slavcheva-Prodanova O, Konstantinova M, Tsakova A, Savova R, Archinkova M. Bone Health Index and bone turnover in pediatric patients with type 1 diabetes mellitus and poor metabolic control. Pediatr Diabetes 2020; 21:88-97. [PMID: 31599085 DOI: 10.1111/pedi.12930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 07/23/2019] [Accepted: 09/18/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND There is a need for a non-invasive, affordable, and reliable method for bone health screening in pediatric patients at risk. OBJECTIVE To assess Bone Health Index (BHI) in pediatric patients with type 1 diabetes (T1D) and its relation to bone metabolism, age at onset, duration, control, and insulin dose. SUBJECTS AND METHODS Left-hand radiographs were obtained from 65 patients with T1D, mean age 11.23 ± 3.89 years, mean disease duration 5.23 ± 3.76 years and mean glycosylated hemoglobin (HbA1c)-83 mmol/mol (9.7%). Blood and 24 hours urine samples were collected for bone and mineral metabolism assessment. BoneXpert was used to determine BHI, Bone Health Index standard deviation score (BHI SDS), and bone age. RESULTS Mean BHI SDS was -1.15 ± 1.19 (n = 54). In 20.37% (n = 11) BHI SDS was < -2SD with mean value -2.82 ± 0. 69, P < .001. These patients had lower levels of beta cross laps (0.77 ± 0.33 ng/mL vs 1.17 ± 0.47 ng/mL), osteocalcin (47.20 ± 14.07 ng/mL vs 75.91 ± 32.08 ng/mL), serum magnesium (0.79 ± 0.05 mmol/L vs 0.83 ± 0.06 mmol/L) and phosphorus (1.48 ± 0.29 mmol/L vs 1.71 ± 0.28 mmol/L) but higher ionized calcium (1.29 ± 0.04 mmol/L vs 1.26 ± 0.05 mmol/L), P < .05, compared to patients with BHI SDS in the normal range. We found a positive correlation between BHI SDS and age at manifestation (r = 0.307, P = 0.024) and a negative one with disease duration (r = -0.284, P = .038). No correlations were found with HbA1c, insulin dose, height, weight, BMI. CONCLUSIONS To the best of our knowledge, this is the first study to assess bone health in pediatric patients with T1D using BHI. We found significantly decreased cortical bone density and bone turnover in 20.37%. Earlier age at onset and diabetes duration may have a negative impact on cortical bone density in patients with poor control. Longitudinal studies are needed to follow changes or to assess future interventions.
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Affiliation(s)
- Olga Slavcheva-Prodanova
- Department of Endocrinology, Diabetes and Genetics, University Children's Hospital, Medical University - Sofia, Bulgaria
| | - Maia Konstantinova
- Department of Endocrinology, Diabetes and Genetics, University Children's Hospital, Medical University - Sofia, Bulgaria
| | - Adelina Tsakova
- Central Clinical Laboratory, Alexandrovska Hospital, Medical University - Sofia, Bulgaria
| | - Radka Savova
- Department of Endocrinology, Diabetes and Genetics, University Children's Hospital, Medical University - Sofia, Bulgaria
| | - Margarita Archinkova
- Department of Endocrinology, Diabetes and Genetics, University Children's Hospital, Medical University - Sofia, Bulgaria
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Maffeis C, Birkebaek NH, Konstantinova M, Schwandt A, Vazeou A, Casteels K, Jali S, Limbert C, Pundziute-Lycka A, Toth-Heyn P, de Beaufort C, Sumnik Z, Cherubini V, Svensson J, Pacaud D, Kanaka-Gantenbein C, Shalitin S, Bratina N, Hanas R, Alonso GT, Poran L, Pereira AL, Marigliano M. Prevalence of underweight, overweight, and obesity in children and adolescents with type 1 diabetes: Data from the international SWEET registry. Pediatr Diabetes 2018; 19:1211-1220. [PMID: 30033651 DOI: 10.1111/pedi.12730] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/08/2018] [Accepted: 07/11/2018] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE To assess the prevalence of underweight (UW), overweight (OW), and obesity in children and adolescents with type 1 diabetes (T1D). METHODS An international cross-sectional study including 23 026 T1D children (2-18 years, duration of diabetes ≥1 year) participating in the SWEET prospective, multicenter diabetes registry. Body mass index SD score (BMI-SDS) was calculated using the World Health Organization BMI charts. Children were categorized as UW (BMI-SDS < -2SD), OW (+1SD < BMI-SDS ≤ +2SD), and obese (OB) (BMI-SDS > +2SD). Hierarchic regression models were applied with adjustment for sex, age, and duration of diabetes. RESULTS The prevalence of UW, OW, and obesity was: 1.4%, 22.3%, and 7.3% in males and 0.6%, 27.2%, and 6.8% in females. Adjusted BMI-SDS was significantly higher in females than in males (mean ± SEM: 0.54 ± 0.05 vs 0.40 ± 0.05, P < 0.0001). In males, BMI-SDS significantly decreased by age (P < 0.0001) in the first three age categories 0.61 ± 0.06 (2 to <10 years), 0.47 ± 0.06 (10 to <13 years), 0.34 ± 0.05 (13 to <16 years). In females, BMI-SDS showed a U-shaped distribution by age (P < 0.0001): 0.54 ± 0.04 (2 to <10 years), 0.39 ± 0.04 (10 to <13 years), 0.55 ± 0.04 (13 to <16 years). BMI-SDS increased by diabetes duration (<2 years: 0.38 ± 0.05, 2 to <5 years: 0.44 ± 0.05, and ≥5 years: 0.50 ± 0.05, P < 0.0001). Treatment modality did not affect BMI-SDS. Adjusted HbA1c was significantly higher in females than in males (8.20% ± 0.10% vs 8.06% ± 0.10%, P < 0.0001). In both genders, the association between HbA1c and BMI-SDS was U-shaped with the highest HbA1c in the UW and obesity groups. CONCLUSIONS The high rate of OW and obesity (31.8%) emphasize the need for developing further strategies to prevent and treat excess fat accumulation in T1D.
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Affiliation(s)
- Claudio Maffeis
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, University City Hospital, Verona, Italy
| | - Niels H Birkebaek
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Maia Konstantinova
- Clinic for Endocrinology, Diabetes and Genetics, Medical University Sofia, University Pediatric Hospital, Sofia, Bulgaria
| | - Anke Schwandt
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany.,German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Andriani Vazeou
- Diabetes Center, P & A Kyriakou Children's Hospital, Athens, Greece
| | - Kristina Casteels
- Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium.,Department of Development and Regeneration, University of Leuven, Leuven, Belgium
| | - Sujata Jali
- KLE Diabetes Centre, KLE University JNMC and KLE'S Dr. Prabhakar Kore Hospital & MRC, Belagavi, India
| | - Catarina Limbert
- Hospital Dona Estefânia, Unit of Pediatric Endocrinology and Diabetes, Lisbon, Portugal
| | - Auste Pundziute-Lycka
- Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Peter Toth-Heyn
- Ist. Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Carine de Beaufort
- Deccp, Pediatric Clinic/Centre Hospitalier de Luxembourg, Luxembourg, Grand Duche de Luxembourg
| | - Zdenek Sumnik
- Department of Pediatrics, Motol University Hospital, Prague, Czech Republic
| | | | - Jannet Svensson
- Department of Pediatric and adolescents, Copenhagen University hospital, Herlev, Denmark
| | - Daniele Pacaud
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Christina Kanaka-Gantenbein
- Diabetes Center, First Department of Pediatrics, Medical School,National and Kapodistrian University of Athens, Agia Sophia Children's Hospital, Athens, Greece
| | - Shlomit Shalitin
- The Jesse Z. and Lea Shafer Institute of Endocrinology and Diabetes, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Natasa Bratina
- University Children's Hospital, Department of Endocrinology, Diabetes and Metabolic Diseases, Ljubljana, Slovenia
| | - Ragnar Hanas
- The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden and NU Hospital Group, Uddevalla, Sweden
| | - Guy T Alonso
- Barbara Davis Center, University of Colorado, Aurora, Colorado
| | - Luxmi Poran
- General Private Practitioner at T1diams, Mauritius, Island
| | - Ana L Pereira
- APDP-Diabetes Portugal, Department of Pediatric and adolescents, Lisbon, Portugal
| | - Marco Marigliano
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, University City Hospital, Verona, Italy
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Konstantinova M, Shedenko K, Boyko L, Perepelkina O, Kazimirova E, Latanov A. Gaze behavior in mixed facial emotion recognition task. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Konstantinova M, Anisimov V, Latanov A. Subjective estimation of time intervals has EEG-correlates in 13-30 frequency band. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Archinkova M, Konstantinova M, Savova R, Iotova V, Petrova C, Kaleva N, Koprivarova K, Despotova V, Koleva R, Boyadzhiev V, Mladenov W. Glycaemic control among Bulgarian children and adolescents with type 1 diabetes – an impact of the social status and the educational level of the parents. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1429309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Margarita Archinkova
- Department of Diabetes, Clinic for Endocrinology, Diabetes and Genetics, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Maia Konstantinova
- Department of Diabetes, Clinic for Endocrinology, Diabetes and Genetics, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Radka Savova
- Department of Diabetes, Clinic for Endocrinology, Diabetes and Genetics, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Violeta Iotova
- Department of Pediatrics, Medical University of Varna, Varna, Bulgaria
| | - Chaika Petrova
- Clinic for Children's Diseases, University Hospital “George Stransky”, Medical University of Pleven, Pleven, Bulgaria
| | - Narcis Kaleva
- Clinic of Pediatrics and Genetic Diseases, UMBAL “St. George”, Medical University of Plovdiv, Plovdiv, Bulgaria
| | | | | | | | | | - Wilchelm Mladenov
- Department of Pediatrics, Medical University of Varna, Varna, Bulgaria
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Savova R, De Franco E, Shaw-Smith C, Georgieva R, Konstantinova M, Archinkova M, Panteleeva E, Kaneva A, Marinov R, Ellard S, Hattersley A. Marked intrafamilial variability of exocrine and endocrine pancreatic phenotypes due to a splice site mutation in GATA6. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2017.1400402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Radka Savova
- Clinic of Endocrinology and Diabetes, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Elisa De Franco
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Charles Shaw-Smith
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Ralitza Georgieva
- Clinic of Endocrinology and Diabetes, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Maia Konstantinova
- Clinic of Endocrinology and Diabetes, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Margarita Archinkova
- Clinic of Endocrinology and Diabetes, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Emilia Panteleeva
- Clinic of Endocrinology and Diabetes, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Anna Kaneva
- Clinic of Cardiology, Medical University of Sofia, Sofia, Bulgaria
| | - Rumen Marinov
- Clinic of Cardiology, Medical University of Sofia, Sofia, Bulgaria
| | - Sian Ellard
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Andrew Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
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Archinkova M, Konstantinova M, Savova R, Iotova V, Petrova C, Kaleva N, Koprivarova K, Popova G, Koleva R, Boyadzhiev V, Mladenov W. Glycemic control in type 1 diabetes mellitus among Bulgarian children and adolescents: the results from the first and the second national examination of HbA1c. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1379360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Margarita Archinkova
- Clinic for Endocrinology, Diabetes and Metabolism, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Maia Konstantinova
- Clinic for Endocrinology, Diabetes and Metabolism, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Radka Savova
- Clinic for Endocrinology, Diabetes and Metabolism, University Pediatric Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Violeta Iotova
- Department of Pediatrics, Medical University – Varna, Varna, Bulgaria
| | - Chayka Petrova
- Clinic for Children's Diseases, University Hospital “George Stransky,” Medical University – Pleven, Pleven, Bulgaria
| | - Narcis Kaleva
- Clinic of Pediatrics and Genetic Diseases, UMBAL “St. George,” Medical University – Plovdiv, Plovdiv, Bulgaria
| | | | | | - Reni Koleva
- Diagnosis – Consulting Center, Stara Zagora, Bulgaria
| | | | - Wilchelm Mladenov
- Department of Pediatrics, Medical University – Varna, Varna, Bulgaria
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Szypowska A, Schwandt A, Svensson J, Shalitin S, Cardona-Hernandez R, Forsander G, Sundberg F, De Beaufort C, Maahs D, Maffeis C, O'Riordan SMP, Krisane ID, Scharf M, Castro S, Konstantinova M, Obermannova B, Casteels K, Gökşen D, Galhardo J, Kanaka-Gantenbein C, Rami-Merhar B, Madacsy L. Insulin pump therapy in children with type 1 diabetes: analysis of data from the SWEET registry. Pediatr Diabetes 2016; 17 Suppl 23:38-45. [PMID: 27417128 DOI: 10.1111/pedi.12416] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/06/2016] [Accepted: 06/09/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Intensified insulin delivery using multiple daily injections (MDI) or continuous subcutaneous insulin infusion (CSII) is recommended in children with type 1 diabetes (T1D) to achieve good metabolic control. OBJECTIVE To examine the frequency of pump usage in T1D children treated in SWEET (Better control in Paediatric and Adolescent diabeteS: Working to crEate CEnTers of Reference) centers and to compare metabolic control between patients treated with CSII vs MDI. METHODS This study included 16 570 T1D children participating in the SWEET prospective, multicenter, standardized diabetes patient registry. Datasets were aggregated over the most recent year of treatment for each patient. Data were collected until March 2016. To assess the organization of pump therapy a survey was carried out. RESULTS Overall, 44.4% of T1D children were treated with CSII. The proportion of patients with pump usage varied between centers and decreased with increasing age compared with children treated with MDI. In a logistic regression analysis adjusting for age, gender and diabetes duration, the use of pump was associated with both: center size [odd ratio 1.51 (1.47-1.55), P < .0001) and the diabetes-related expenditure per capita [odd ratio 1.55 (1.49-1.61), P < .0001]. Linear regression analysis, adjusted for age, gender, and diabetes duration showed that both HbA1c and daily insulin dose (U/kg/d) remained decreased in children treated with CSII compared to MDI (P < .0001). CONCLUSIONS Insulin pump therapy is offered by most Sweet centers. The differences between centers affect the frequency of use of modern technology. Despite the heterogeneity of centers, T1D children achieve relatively good metabolic control, especially those treated with insulin pumps and those of younger age.
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Affiliation(s)
| | - Anke Schwandt
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany.,German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Jannet Svensson
- Pediatric Department, Copenhagen University Hospital, Herlev, Denmark
| | - Shlomit Shalitin
- The Jesse Z and Lea Shafer Institute of Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Gun Forsander
- Institute for Clinical Sciences, Sahlgrenska Achademy, University of Gothenburg, Gothenburg, Sweden.,The Queen Silvia Childrens Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Frida Sundberg
- The Queen Silvia Childrens Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Carine De Beaufort
- DCCP-Clinique pédiatrique de Luxembourg, Luxembourg, Luxembourg.,Department of Pediatric Endocrinology, UZBrussels, Brussels, Belgium
| | - David Maahs
- Barbara Davis Center for Childhood Diabetes, University of Colorado Denver Aurora, Colorado, USA
| | - Claudio Maffeis
- Pediatric Diabetes and Metabolic Disorders Unit & Regional Center for Pediatric Diabetes, University Hospital, University of Verona, Verona, Italy
| | - Stephen M P O'Riordan
- Paediatrics Diabetes & Endocrine Unit, Department of Paediatrics & Child Health, Cork University Hospital, University College Cork, Cork, Ireland
| | - Iveta Dzivite Krisane
- Children's University Hospital Children's Endocrinology Centre, Riga Stradins University, Riga, Latvia
| | - Mauro Scharf
- Pediatric Endocrinology, Hospital Nossa Senhora Das Graças, Brazil
| | - Sofia Castro
- Child and Young Department, APDP-Diabetes, Lisbon, Portugal
| | - Maia Konstantinova
- Medical University-Clinic of Endocrinology, Diabetes and Genetics, Sofia University Pediatric Hospital, Sofia, Bulgaria
| | - Barbora Obermannova
- Department of Pediatrics, University Hospital Motol and 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Kristina Casteels
- Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium.,Department of Development and Regeneration, KU Leuven, Belgium
| | - Damla Gökşen
- Faculty of Medicine Pediatric Endocrinology and Diabetes, Ege University, İzmir, Turkey
| | - Júlia Galhardo
- Unit of Pediatric Endocrinology and Diabetes, Hospital Dona Estefânia, Lisbon, Portugal
| | - Christina Kanaka-Gantenbein
- Diabetes Center, Division of Endocrinology, Diabetes and Metabolism First Department of Pediatrics, Medical School National and Kapodistrian University of Athens-Greece "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Birgit Rami-Merhar
- Department of Pediatrics and Adolescent Medicine of Medical University of Vienna, Vienna, Austria
| | - Laszlo Madacsy
- First Department of Pediatrics, Semmelweis University, Budapest, Hungary
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Vuchkova E, Konstantinova M, Petrova S, Rangelova L, Bojilova D, Koleva R, Vlahova I. Changes in feeding behavior in students aged 14–18 years. Appetite 2015. [DOI: 10.1016/j.appet.2014.12.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Petkova E, Petkova V, Petrova G, Dimitrova M, Konstantinova M. Assessment of Effect of Continuous Subcutaneous Insulin Infusion Treatment, Insulin Analog And Human Insulin of Children With Diabetes. Value Health 2014; 17:A355-A356. [PMID: 27200704 DOI: 10.1016/j.jval.2014.08.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- E Petkova
- Medical University of Sofia, Faculty of Pharmacy, Sofia, Bulgaria
| | - V Petkova
- Medical University of Sofia, Faculty of Pharmacy, Sofia, Bulgaria
| | - G Petrova
- Medical University Sofia, Faculty of Pharmacy, Sofia, Bulgaria
| | - M Dimitrova
- Medical University of Sofia, Faculty of Pharmacy, Sofia, Bulgaria
| | - M Konstantinova
- Medical University of Sofia, Pediatric Endocrinology Clinic, Sofia, Bulgaria
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12
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Rangelova L, Petrova S, Konstantinova M, Duleva V, Dimitrov P. Overweight and obesity prevalence in Bulgarian schoolchildren: A comparison between two international standards. ACTA ACUST UNITED AC 2014. [DOI: 10.7439/ijbar.v5i9.868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Konstantinova M, Loizeau V, Pilorget V, Cali A, Danne T. Safety results from OCAPI: a European Observational Cohort Study of insulin glulisine-treated children aged 6-12 years with type 1 diabetes. Exp Clin Endocrinol Diabetes 2014; 122:523-7. [PMID: 25054310 DOI: 10.1055/s-0034-1377005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Data on the safety of insulin glulisine for type 1 diabetes are limited in paediatric populations. The European post-marketing Observational prospective Cohort study of children with type 1 diabetes treated with APIDRA(®) (OCAPI) study evaluated the safety of insulin glulisine in children aged 6-12 years in real-life clinical practice, with a particular focus on the 6-8 years age group. RESEARCH DESIGN AND METHODS OCAPI was an international, multicentre, observational, non-interventional, prospective cohort study, in which 94 participants with type 1 diabetes (6-8 years age group: n=31; 9-12 years age group: n=63) received insulin glulisine for 6 months under normal, local conditions. The primary objective was the incidence of severe hypoglycaemia in all participants. RESULTS Overall incidence of severe hypoglycaemia was 6.6 events per 100 persons/year (7.2 and 6.3 events per 100 persons/year in the 6-8 and 9-12 years age groups, respectively). 12 participants (all aged 9-12 years) experienced transient injection-site reactions. No systematic hypersensitivity reactions were reported. Only 1 participant (9-12 years age group) experienced a serious class-effect risk possibly related to insulin glulisine (severe hypoglycaemia requiring an Emergency Department visit). Glycated haemoglobin levels did not change markedly throughout the study, and were inversely proportional to the risk of hypoglycaemia. CONCLUSIONS Insulin glulisine has a good safety profile in children with type 1 diabetes aged 6-12 years, with generally low rates of severe hypoglycaemia and few adverse reactions. These results are encouraging for its use in paediatric populations.
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Affiliation(s)
| | - V Loizeau
- Lincoln, Boulogne-Billancourt, France
| | | | | | - T Danne
- "Auf der Bult" Children and Youth Hospital, Hannover, Germany
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Petkova E, Petkova V, Konstantinova M, Petrova G. Economic evaluation of continuous subcutaneous insulin infusion for children with diabetes - a pilot study: CSII application for children - economic evaluation. BMC Pediatr 2013; 13:155. [PMID: 24079842 PMCID: PMC3850655 DOI: 10.1186/1471-2431-13-155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 09/20/2013] [Indexed: 11/14/2022] Open
Abstract
Background The objective of this study is to assess the cost of using continuous subcutaneous insulin infusion to treat children with type-1diabetes in Bulgaria, considering changes in body mass index (BMI) and the glycated hemoglobin. The study was performed from the perspective of the Bulgarian National Health Insurance Fund (NHIF) and patients. Methods A total of 34 pediatric type-1-diabetes patients were observed for 7 months, divided into 2 groups – on pumps and on insulin analogue therapy. Patient demographic data, BMI and glycated hemoglobin level were obtained and recorded. The cost of insulin, pumps, and consumables were calculated and compared with changes in glycated hemoglobin level. The incremental cost-effectiveness ratio was below the threshold value of gross domestic product per capita. Results The results were sensitive to changes in glycated hemoglobin level. Improvements associated with glycemic control led to a reduced glycated hemoglobin level that could ensure good diabetes management, but its influence on BMI in growing children remains unclear. Conclusion Continuous subcutaneous insulin infusion appears to be more cost-effective for the Bulgarian pediatric population and health care system.
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Affiliation(s)
- Elina Petkova
- Department of Social Pharmacy, Medical University Sofia, Faculty of Pharmacy, Sofia, Bulgaria.
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Koprinarov N, Konstantinova M. Stages of xylene transforming during carbon particle synthesis. J Nanosci Nanotechnol 2012; 12:9195-9197. [PMID: 23447977 DOI: 10.1166/jnn.2012.6768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Xylene is one of the materials that could be used for synthesis of different carbon nanoparticles including perfect carbon spheres with diameters of 1 to 8 microm and ellipsoids. Its changes in the course of the pyrolytic process in a hermetically sealed stainless steal container have been examined by stopping the process at different stage of temperature treatment from 100 degrees C to 600 degrees C. The prepared material is in a liquid phase up to 400 degrees C and its relative weight and optical transmittance changes have been measured. The origins of these changes are traced to solid micro and nanoparticles and their morphology, which was studied by Scanning (SEM) and Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), Electron Probe X-ray Micro Analysis and Energy Dispersive X-ray Spectrometry (EDS), and Fourier Transform Infrared Spectroscopy (FTIR).
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Affiliation(s)
- N Koprinarov
- Central Laboratory Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
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Koprinarov N, Konstantinova M. Shape diversity in particles obtained by low temperature pyrolysis of ferrocene. Cryst Res Technol 2011. [DOI: 10.1002/crat.201100006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Campone M, Dobrovolskaya N, Tjulandin S, Chen S, Fourié S, Mefti F, Konstantinova M, Pouget J, Lefresne F, Jassem J. 5000 A 3-arm randomised phase II study of oral vinorelbine (NVBo) plus capecitabine (X) versus NVBo and X in sequential versus docetaxel (D) plus X in patients with metastatic breast cancer (MBC) previously treated with anthracyclines. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)70892-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Savova R, Popova G, Koprivarova K, Konstantinova M, Angelova B, Atanasova M, Goranova S, Christov V, Kalinov K. Clinical and laboratory characteristics of type I (insulin dependent) diabetes mellitus at presentation among Bulgarian children. Diabetes Res Clin Pract 1996; 34 Suppl:S159-63. [PMID: 9015686 DOI: 10.1016/s0168-8227(96)90024-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Clinical and laboratory data of 1248 newly diagnosed diabetic children at the time of diagnosis were analysed. All children were admitted to the University Children's Hospital in Sofia, 45.9% before first their insulin injection. Symptoms preceding the diagnosis and laboratory data (plasma glucose and ketonuria) were analysed, respectively for 1100 and 1022 children. Blood pH (mainly arterialized) was available in 558 ketonuria positive children and in other 82 acidotic breathing was reported. Mother's education was noted in the 1226 hospital records. Among the children with known urinanalysis 13.5% were without ketonuria (148 patients), 12 of them with fasting blood glucose < or = 6.4 mmol/1 (115 mg/dl). Eighteen-point-two percent of all children were hospitalized in a state of severe ketoacidosis (blood pH < or = 7.2 or reported acidotic breathing). The average duration of thirst and polyuria was 28 +/- 33 days. Ketonuria negative children with plasma glucose < or = 6.4 mmol/l showed a significantly shorter period of symptoms, compared to those with plasma glucose > 6.4 mmol/1 (17 +/- 25 vs. 25 +/- 31 days; P = 0.0991). The cases with severe ketoacidosis, compared to those with mild ketoacidosis (blood pH 7.21 - 7.34) showed shorter period of symptoms too (P = 0.0658). Moderate positive relation existed between the age at diagnosis and duration of symptoms (chi 2 = 43.28, D.F. = 8, P = 0.0000). The percentage of severe ketoacidosis is higher in the younger age groups. Febrile illness, preceding the start of the symptoms was more common in the groups with shorter duration of symptoms (up to 1 month), but did not change the proportion of severe ketoacidosis. No significant difference was found between the level of mother's education and duration of the symptoms before diagnosis (P = 0.9782). We conclude that the level of metabolic disturbances at the diagnosis of IDDM among children was not influenced by the duration of the preceding symptoms. The severity of clinical picture was possibly dependent on the degree of insulinopenia, i.e. the rate of beta-cell destruction. Clinical heterogeneity was possibly dependent on genetical heterogeneity related to HLA class II genes.
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Affiliation(s)
- R Savova
- Clinic of Endocrinology and Diabetes, University Children's Hospital, Sofia, Bulgaria
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Kocova M, Blagoevska M, Bogoevski M, Konstantinova M, Dorman J, Trucco M. HLA class II molecular typing in an European Slavic population with a low incidence of insulin-dependent diabetes mellitus. Tissue Antigens 1995; 45:216-9. [PMID: 7761980 DOI: 10.1111/j.1399-0039.1995.tb02442.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- M Kocova
- Department of Pediatrics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, Pennsylvania, USA
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Abstract
OBJECTIVE To determine, for the first time, the incidence of IDDM among children 0-15 yr of age in Macedonia, the south republic of former Yugoslavia, and to compare these rates with those from neighboring countries. RESEARCH DESIGN AND METHODS Children < 15 yr of age, with IDDM diagnosed between January 1985 and December 1991, were registered using the criteria established for the WHO Multinational Project for Childhood Diabetes. The primary source of case ascertainment consisted of clinical records from the University Pediatric Clinic in Skopje, the capital of Macedonia. The secondary source consisted of records for insulin supplies from the pharmacy in Skopje and from 15 local hospitals. RESULTS During 1985-1991, 112 children < 15 yr of age were diagnosed with IDDM in Macedonia. The completeness of case ascertainment was 96.6%. The age-adjusted IDDM incidence rate was very low, only 2.45/100,000 per yr. No significant sex difference in incidence was observed. The highest incidence rate occurred in the 10- to 15-yr age-group. No temporal trends were observed. CONCLUSIONS The incidence of IDDM in Macedonia is the lowest in Europe and among the lowest reported for Caucasian populations. However, the descriptive epidemiology is similar to that for high incidence populations. Further etiological studies are required to evaluate potential reasons for the very low incidence of IDDM in Macedonia.
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Affiliation(s)
- M Kocova
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pennsylvania
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Konstantinova M. The synergic extraction of uranium(VI) with solutions of trioctylphosphine oxide and benzoic acid in carbon tetrachloride. Anal Chim Acta 1977. [DOI: 10.1016/s0003-2670(01)82309-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Konstantinova M. Monoamines in the liquor-contacting nerve cells in the hypothalamus of the lamprey, Lampetra fluviatilis L. Z Zellforsch Mikrosk Anat 1973; 144:549-57. [PMID: 4793165 DOI: 10.1007/bf00307380] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Konstantinova M. The effect of adrenaline and acetylcholine on the hypothalamic-hypophysial neurosecretion in the rat. Z Zellforsch Mikrosk Anat 1967; 83:549-67. [PMID: 5613965 DOI: 10.1007/bf00319324] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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