COVID-19 Death in Novi Pazar - "Serbian Bergamo".

Serbia was one of the countries in Europe and the world that were most affected by the coronavirus disease 2019 (COVID-19) pandemic. City Novi Pazar was the greatest coronavirus hotspot in Europe on July 1, 2020, due to several hundred infected people. Even though united data were published at the state level, there are no data by region or city, so the interpretation of the COVID-19 epidemic in Serbia at the regional level is difficult. Different levels of health care and health education of citizens and the degree of respect for the proposed epidemiological measures have led to significant differences in the number of tests, a large number of infected, and several deaths by regions and cities. Insufficiently precise and up-to-date keeping of records and statistical data on COVID-19 at the state and local level also complicates the pandemic's scientific and epidemiological analysis. Novi Pazar is a city in southwestern Serbia with a population of 100,000. It is similar in population to the city of Bergamo, in northern Italy in the Lombardy region. As of July 1, 2020, Novi Pazar had 300% higher mortality per 100,000 population compared with the same month last year, and almost 10 times higher mortality than the rest of Serbia.

Measurement of Bone Mineral Density in Children with Cerebral Palsy from an Ethical Issue to a Diagnostic Necessity.

INTRODUCTION: Due to concerns about cumulative radiation exposure in the pediatric population, it is not standard practice to perform dual-energy X-ray absorptiometry (DXA) analysis in the diagnostic process of musculoskeletal disorders, such as cerebral palsy (CP). This study aimed to evaluate the bone mineral density (BMD) in children with CP and the ethical justification of applying DXA analysis in these children. Material and Methods. In this monocentric retrospective analysis, data were collected from children and adolescents with CP who were treated for a primary illness for three years. A clinical examination, which included a DXA analysis, recommended by the multidisciplinary team, was performed. After applying inclusion and exclusion criteria, 60 scans remained for statistical analysis. BMD and Z-scores for the lumbar spine (LS), and hip right and left femoral neck (RFN and LFN, respectively), and total hip (TH) were recorded. RESULTS: The average age of children with CP when DXA analysis was first performed was about 7 years. The BMD (mean ± SD) at LS (LS-BMD) of all patients was 0.612 ± 0.12, at RFN 0.555 ± 0.11, at LFN 0.572 ± 0.1, and at TH (TH-BMD) 0.581 ± 0.13. The values of the Z-score (mean ± SD) at LS of all patients were -2.5 ± 0.22, at RFN -2.2 ± 0.21, at LFN -2.25 (SD = 0.2), and at TH -2.3 (SD = 0.23). There was no statistical significance between age and gender; however, BMI, walking ability, fracture history, and pattern of CP had a significant impact on BMD and Z-score values of these children. CONCLUSION: The results of our study clearly indicate that children with CP have a higher risk of low BMD, osteoporosis, and bone fractures, which makes it ethically justifiable to perform the DXA analysis in these children.

Corneal Stem Cells as a Source of Regenerative Cell-Based Therapy.

In the past few years, intensive research has focused on corneal stem cells as an unlimited source for cell-based therapy in regenerative ophthalmology. Today, it is known that the cornea has at least two types of stem cells: limbal epithelial stem cells (LESCs) and corneal stromal stem cells (CSSCs). LESCs are used for regeneration of corneal surface, while CSSCs are used for regeneration of corneal stroma. Until now, various approaches and methods for isolation of LESCs and CSSCs and their successful transplantation have been described and tested in several preclinical studies and clinical trials. This review describes in detail phenotypic characteristics of LESCs and CSSCs and discusses their therapeutic potential in corneal regeneration. Since efficient and safe corneal stem cell-based therapy is still a challenging issue that requires continuous cooperation between researchers, clinicians, and patients, this review addresses the important limitations and suggests possible strategies for improvement of corneal stem cell-based therapy.