Medical University of Varna

About: Medical University of Varna is a education organization based out in Varna, Varna, Bulgaria. It is known for research contribution in the topics: Population & Medicine. The organization has 1199 authors who have published 1273 publications receiving 32940 citations. The organization is also known as: MU-Varna & Higher Medical Institute of Varna.

How much do we know about the role of vitamin D in the pathogenesis of systemic lupus erythematosus

Abstract: Vitamin D is an essential steroid hormone. The role of Vitamin D in mineral metabolism and skeletal health as related to calcium homeostasis is well established. In addition to this role, vitamin D has been recently accepted also as immune modulator and thus it could be possibly implicated in the pathogenesis of system-ic lupus erythematosus (SLE). This review focuses on the question: „Is vitamin D deficiency involved in the pathogenesis of SLE or is it a consequence of the disease state?” and comments the known positive effects of vitamin D supplementation on SLE disease activity.

Research on the attitudes and the influence of Bulgarian folk dances on the subjective health levels of students from the Medical University of Varna

Abstract: Introduction: Bulgarian folk dances (BgFD) optimally combine physical activity, social interaction and emotional expression. Aim: The aim of this article is to present the preliminary results of a research project investigating students' attitudes and motivations to choose BgFD as a subject, and to study the influence of practicing BgFD on their subjective health. Additionally, an anthropometric profile of the study participants is made, as well as an assessment of the students` stress levels. A driving hypothesis of the project is that BgFD are equal to any other sport activity. Methods: The study protocol consists of a quantitative and qualitative phase. Herewith are presented the preliminary results of the quantitative phase. Based on the presentation of these results, a qualitative survey (Delphi technique) will be carried out, which will lead to an expert consensus on the place of BgFD as a discipline in the students` curriculum in all universities in Bulgaria. The study included a sample of 184 students from Bulgarian language courses, from different years and majors separated into two main groups - practicing BgFD (n=92) and non-dancing (n=92 - aerobics and volleyball sport classes). The information from the collected questionnaires was processed with IBM SPSS Statistics v.23. Results: Survey results can be summarized into four areas: 1) History of physical activity; students` attitudes and motivation: Among the participants, around 37% have never practiced sports or BgFD. For 56.4% of those who are enrolled in BgFD classes, dances are the only weekly physical activity; 2) Assessing the levels of subjective health among students: "BgFD help for better physical and emotional health" - 78.8% of the BgFD group shared this statement. Overall, all the participants reported higher subjective health levels at the end of the semester; 3) Assessment of the stress levels of students: Data show that over 50% of the study participants have high levels of stress; 4) Anthropometric profile of the students: 59.74% of the participants are obese or overweight. Discussion and Conclusion: There is a renaissance of the interest in BgFD among the young Bulgarian generation, which makes the reported research findings relevant and up to date. Regarding the subjective health assessment results, it may be concluded that practicing BgFD is equal to practicing sports as a physical activity. The analysis made so far provides a serious ground for the promotion of the BgFD teaching model at the Medical University of Varna which could be applied in other universities in Bulgaria.

Factors Affecting Bone Temperature Increase During Implant Surgery - Review

Abstract: Introduction During implant surgery certain amount of heat is produced. It is known that temperature increase above the critical threshold of 47°C for a minute could lead to thermal osteonecrosis, which could be the reason for an early implant failure. Aim The aim of this review was to reveal the multifactorial nature of bone temperature rise during dental implant surgery. Materials and Methods PubMed and Google Scholar databases were searched to select articles related to the topic. The review includes articles published from 1972 to 2019, only in English language. Results All reviewed original articles, describing studies, whose aim was to observe the heat generation during implant surgery, are experimental. A few reviews were included. As potential risk factors for thermal damage of the bone were considered the site preparation protocol, drill wear, drill design, drilling speed and cooling effectiveness. Conclusion Heat generation during implant site preparation could be increased by performing guided implant or piezoelectric surgery. The use of combined irrigation at higher speeds, sharper drills and laser-assisted osteotomy could help avoid the risk of thermal damage to the bone. The heat production during the implant site preparation is a subject to many studies, but there is still a lack of data about the temperature rise during implant insertion.

Early Second-Trimester Spontaneous Miscarriage Due to Fourth Ventricle Choroid Plexus Papilloma

Abstract: Miscarriage due to fetal tumors is an extremely rare finding, with a varying incidence from 1.7 to 13.5 per 100,000 live births, with central nervous system tumors occupying a minority of these cases. Herein, we report the gross morphological and histological findings of a 17-gestational week spontaneous miscarriage in a 27 year old multi-gravida due to a fourth ventricle choroid plexus papilloma (CPP). The CPP was composed of a pronoun fibro-vascular stroma covered with a dense lining of tall cuboid sparsely ciliated single cell layer with rich in chromatin nuclei. The cytoplasm of the CPP covering cells was intensely colored when compared to the pale cytoplasm of the covering cells of the choroid plexus collected from the lateral ventricle, which also lacked in such pronoun fibrovascular stroma. The fourth ventricle was significantly dilated with parenchymal compression of nervous tissue towards the chondral fetal cranium.

The basics of stress. Factors and symptoms

Abstract: Stress is a highly subjective phenomenon and a difficult one to define. Nowadays the relationship between stress and diseases is well established, but it has not always been recognised. The word “stress” is used in physics to refer to the interaction between a force and the resistance to counter that force. It was Hans Selye who first incorporated this term into the medical lexicon to describe the “nonspecific response of the body to any demand”. Selye’s theories attracted considerable attention and stress became a popular modern word, completely ignoring its original definition. There are different types of stress, each of them has its own, particular characteristics, symptoms, duration, and way to be treated. The stress factors are divided into four types or categories: physical stress, psychological stress, psychosocial stress, and psycho-spiritual stress. Stress has physiological, emotional/mental, and behavioral symptoms.