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1.
Screening for diabetic retinopathy : a twelve-month review
Tomaž Gračner, 2020, izvirni znanstveni članek

Opis: The purpose is to provide a twelve-month database review of screening for diabetic retinopathy (DR). A total of 1428 diabetes mellitus (DM) patients screened in 2017 were analyzed in a retrospective study. Retinal photographs were reviewed by an ophthalmologist for the presence and stage of DR, as well as for additional nondiabetic findings. The following grading categories of DR were used: without DR, mild non-proliferative DR (NPDR), moderate NPDR, severe nonproliferative NPDR, proliferative DR (PDR), clinically significant macular edema (CSME) and ungradable finding. Severe NPDR, PDR and CSME were classified as vision-threatening DR. Out of 1428 DM patients, 27 were diagnosed with type 1 DM and 1401 with type 2 DM, 353 of them had newly diagnosed type 2 DM. Without DR category was recorded in 85.2% of all eyes screened, 2.8% were ungradable, and 12% showed varying stages of DR. Vision-threatening DR was found in 2.8% and additional nondiabetic findings in 5.2% of all screened eyes. In the group of newly diagnosed type 2 DM, 92.5% of screened eyes were without DR, 3.1% were ungradable and 4.3% showed varying stages of DR. In the group of newly diagnosed type 2 DM, vision-threatening DR was recorded in 0.1% and additional nondiabetic finding in 5.7% of the eyes screened. In conclusion, a small proportion of screened DM patients with detected DR had vision-threatening DR.
Ključne besede: diabetes mellitus, diabetic retinopathy, screening, proliferative retinopathy, maculopathy
Objavljeno v DKUM: 22.01.2025; Ogledov: 0; Prenosov: 0
.pdf Celotno besedilo (207,27 KB)
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2.
Cognitive and emotional perceptions of illness in patients diagnosed with type 2 diabetes mellitus
Lucija Gosak, Gregor Štiglic, 2024, izvirni znanstveni članek

Opis: Type 2 diabetes mellitus (T2DM) affects a patient’s physical, social, and mental well-being. Perceptions of the illness are linked to quality of life. The aim of this study was to assess illness perception in patients diagnosed with T2DM and to validate the Brief Illness Perception Questionnaire in the Slovenian language. A cross-sectional study involved 141 patients diagnosed with T2DM. We performed a content analysis of the questionnaire and estimated the S-CVI, I-CVI, kappa coefficient. We also used Cronbach’s alpha to assess the reliability. Participants did not have a very threatening perception of T2DM, but being overweight and having cardiovascular disease were significant contributors to a more threatening perception. The most frequently indicated factors influencing the onset and development of T2DM were heredity and genetics, stress and other psychological distress, and poor and inadequate nutrition. I-CVI ranged from 0.833 to 1.00, while the kappa is greater than 0.74, confirming the excellent validity of the questions. The content validity assessment of the questionnaire further confirms that the questionnaire is suitable for use with the target population in Slovenia. The questionnaire proved to be a valid and reliable tool that can be used to assess the relationship between illness perception and self-management of T2DM.
Ključne besede: type 2 diabetes mellitus (T2DM), illness perception, psychometric properties
Objavljeno v DKUM: 28.11.2024; Ogledov: 0; Prenosov: 0
.pdf Celotno besedilo (236,42 KB)
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Electrodermal activity and heart rate variability for detection of peripheral abnormalities in type 2diabetes : a review
Matej Žnidarič, Dominik Škrinjar, Alen Kapel, 2023, izvirni znanstveni članek

Opis: Modern medicine exhibits an upward trend towards non-invasive methods for early detection of disease and long-term monitoring of patients’ health. Diabetes mellitus and its complications are a promising area for implementation of new medical diagnostic devices. One of the most serious complications of diabetes is diabetic foot ulcer. The main causes responsible for diabetic foot ulcer are ischemia caused by peripheral artery disease and diabetic neuropathy caused by polyol pathway-induced oxidative stress. Autonomic neuropathy impairs function of sweat glands, which can be measured by electrodermal activity. On the other hand, autonomic neuropathy leads to changes in heart rate variability, which is used to assess autonomic regulation of the sinoatrial node. Both methods are enough sensitive to detect pathological changes caused by autonomic neuropathy and are promising screening methods for early diagnosis of diabetic neuropathy, which could prevent the onset of diabetic ulcer.
Ključne besede: diabetes mellitus, diabetic foot ulcer, autonomic neuropathy, electrodermal activity, heart rate variability
Objavljeno v DKUM: 22.04.2024; Ogledov: 144; Prenosov: 14
.pdf Celotno besedilo (1,02 MB)
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5.
Kakovost življenja nosečnic s sladkorno boleznijo tipa 1 ali tipa 2
Nika Bombek, 2024, diplomsko delo

Opis: Uvod: Mednarodna zveza za sladkorno bolezen poroča, da ima vsaka šesta nosečnica sladkorno bolezen, od tega jih ima kar 13,6 % sladkorno bolezen že pred nosečnostjo. Namen zaključnega dela je raziskati, kakšna je kakovost življenja nosečnic s sladkorno boleznijo tipa 1 ali tipa 2. Metode: Uporabili smo opisno metodo dela in metodo pregleda literature. Glede na zastavljeno raziskovalno vprašanje smo literaturo iskali v mednarodnih bazah podatkov PubMed, CINAHL, SAGE in Web of Science, z upoštevanjem določenih vključitvenih in izključitvenih meril ter limitov iskanja. Potek in prikaz iskanja znanstvene literature smo naredili po smernicah PRISMA. Izvedli smo narativno sintezo vsebine. Rezultati: V končno analizo smo vključili pet znanstvenih člankov. Ugotovljeno je bilo, da na kakovost življenja nosečnic s sladkorno boleznijo tipa 1 ali 2 pomembno vplivajo podpora in empatija zdravstvenega tima, socialna podpora, družinska anamneza, sociodemografske značilnosti, znanje in sprejemanje bolezni. Razprava in zaključek: Podpora socialnega okolja in zdravstvenega tima sta ključnega pomena za izboljšanje kakovosti življenja nosečnic s sladkorno boleznijo tipa 1 ali 2. Zdrav življenjski slog pomembno prispeva k boljši kakovosti življenja nosečnic s sladkorno boleznijo tipa 1 ali 2, saj imajo nosečnice, zdravljene z insulinom, dokazano slabšo kakovost življenja.
Ključne besede: Nosečnost, diabetes mellitus, kakovost življenja
Objavljeno v DKUM: 22.02.2024; Ogledov: 394; Prenosov: 95
.pdf Celotno besedilo (721,89 KB)

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Implementing quality indicators for diabetes and hypertension in family medicine in Slovenia
Zalika Klemenc-Ketiš, Igor Švab, Tonka Poplas-Susič, 2017, izvirni znanstveni članek

Opis: Introduction: A new form of family practices was introduced in 2011 through a pilot project introducing nurse practitioners as members of team and determining a set of quality indicators. The aim of this article was to assess the quality of diabetes and hypertension management. Methods: We included all family medicine practices that were participating in the project in December 2015 (N=584). The following data were extracted from automatic electronic reports on quality indicators: gender and specialisation of the family physician, status (public servant/self-contracted), duration of participation in the project, region of Slovenia, the number of inhabitants covered by a family medicine practice, the name of IT provider, and levels of selected quality indicators. Results: Out of 584 family medicine practices that were included in this project at the end of 2015, 568 (97.3%) had complete data and could be included in this analysis. The highest values were observed for structure quality indicator (list of diabetics) and the lowest for process and outcome quality indicators. The values of the selected quality indicators were independently associated with the duration of participation in the project, some regions of Slovenia where practices were located, and some IT providers of the practices. Conclusion: First, the analysis of data on quality indicators for diabetes and hypertension in this primary care project pointed out the problems which are currently preventing higher quality of chronic patient management at the primary health care level.
Ključne besede: family practices, healthcare quality indicator, diabetes mellitus, hypertension, Slovenia
Objavljeno v DKUM: 03.11.2017; Ogledov: 1637; Prenosov: 367
.pdf Celotno besedilo (424,82 KB)
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8.
Razvoj spletne aplikacije in napovednega modela za napoved nediagnosticirane sladkorne bolezni tipa 2
Andrej Fajfar, 2017, magistrsko delo

Opis: V magistrski nalogi smo s pomočjo metode strojnega učenja »Random Forest« skušali napovedati stopnjo tveganja za nastanek sladkorne bolezni oz. verjetnost prisotnosti nediagnosticirane sladkorne bolezni na podlagi podatkov iz Slovenije. Za izbrano metodo smo določili optimalno število in vrsto spremenljivk za posamezni model. Za evalvacijo modela smo uporabili povprečno območje pod krivuljo (AUC), točnost in F-mero. Za model populacije s povečanim tveganjem smo dosegli povprečno AUC 0,823, točnost 0,824 in F-mero 0,804. V modelu za napoved nediagnostirane sladkorne bolezni smo dosegli povprečno AUC in točnost 0,749 in F-mero 0,654. Na podlagi podatkov smo pokazali, da je možno z veliko uspešnostjo določiti osebe z visokim tveganjem, ki predstavljajo preddiabetike in nediagnostirane diabetike oz. skupino s tveganjem za nastanek sladkorne bolezni tipa 2. Pokazali smo uporabo tehnik uravnoteženja odločitvenega razreda in rezultate primerjali z neuravnoteženim razredom. Uravnoteženje razreda zviša klasifikacijsko uspešnost modela. Rezultate smo primerjali z rezultati drugih znanstvenih objav in zasledili podobnost med rezultati. Tuje raziskave navajajo, da je klasifikator Random Forest najpogosteje izbran model, v primerjavi z drugimi modeli za napovedovanje kroničnih bolezni. S korelacijskim testom smo pokazali, da napovedna uspešnost modela ne korelira s številom dreves v ansamblu (p = 0,00015).
Ključne besede: strojno učenje, Random Forest, neuravnoteženi podatki, diabetes mellitus
Objavljeno v DKUM: 19.10.2017; Ogledov: 1397; Prenosov: 169
.pdf Celotno besedilo (1,38 MB)

9.
Intracellular serotonin modulates insulin secretion from pancreatic ß-cells by protein serotonylation
Nils Paulmann, Maik Grohmann, Jörg-Peter Voigt, Bettina Bert, Jakob Vowinckel, Michael Bader, Maša Skelin, Marko Jevšek, Heidrun Fink, Marjan Rupnik, Diego Walther, 2009, izvirni znanstveni članek

Opis: While serotonin (5-HT) co-localization with insulin in granules of pancreatic ß-cells was demonstrated more than three decades ago, its physiological role in the etiology of diabetes is stili unclear. We combined biochemical and electrophysiological analyses of mice selectively deficient in peripheral tryptophan hydroxylase (Tph1-/-) and 5-HT to show that intracellular 5-HT regulates insulin secretion. We found that these mice are diabetic and have an impaired insulin secretion due to the lack of 5-HT in the pancreas. The pharmacological restoration of peripheral 5-HT levels rescued the impaired insulin secretion in vivo. These findings were further evidenced by patch clamp experiments with isolated Tph1-/- ß-cells, which clearly showed that the secretory defect is downstream of Ca2+ -signaling and can be rescued by direct intracellular application of 5-HT via the clamp pipette. In elucidating the underlying mechanism further, we demonstrate the covalent coupling of 5-HT by transglutaminases during insulin exocytosis to two key players in insulin secretion, the small GTPases Rab3a and Rab27a. This renders them constitutively active in a receptor-independent signaling mechanism we have recently termed serotonylation. Concordantly, an inhibition of such activating serotonylation in ß-cells abates insulin secretion. We also observed inactivation of serotonylated Rab3a by enhanced proteasomal degradation, which is in line with the inactivation of other serotonylated GTPases. Our results demonstrate that 5-HT regulates insulin secretion by serotonylation of GTPases within pancreatic ß-cells and suggest that intracellular 5-HT functions in various microenvironments via this mechanism in concert with the known receptor-mediated signaling.
Ključne besede: insulin secretion, serotonin, insulin, glucose, diabetes mellitus, guanosine triphosphatase, exocytosis, pancreas
Objavljeno v DKUM: 16.06.2017; Ogledov: 2195; Prenosov: 196
.pdf Celotno besedilo (774,75 KB)
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