Opera Medica et Physiologica

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Full-length research paper
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 82-86; doi:10.24412/2500-2295-2025-3-82-86
Abstract Full Text

In this study, we assessed stress levels and selected hormonal parameters in young women (aged 28 to 35) who voluntarily limited their digital exposure over an extended period (three months or more). The study sample included both women with and without children, as the presence of children is commonly considered an additional stress factor. The results demonstrated that, regardless of parental status, reducing digital device usage led to a decrease in stress indicators and cortisol levels. Moreover, an increase in prolactin levels – a hormone associated, among other roles, with maternal behavior – was observed in the participants.

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Full-length research paper
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 67-81; doi:10.24412/2500-2295-2025-3-67-81
Abstract Full Text

Breast cancer (BC) remains one of the leading causes of cancer-related mortality in women worldwide. Recent studies have explored the role of myokines, signaling proteins released during muscle contraction, in regulating tumor growth, metastasis, and the tumor microenvironment. This study investigates the correlation between myokines and breast cancer progression, focusing on the role of irisin and decorin. The study was conducted at two oncology centers in Baghdad, Iraq, from May to December 2022. A total of 88 Iraqi women, aged 20-70, were enrolled in the study across six groups: healthy controls (G1) and women with different treatment regimens (G2-G6). Blood samples were collected after fasting, and myokine concentrations were measured using ELISA. Additionally, histopathological examinations were performed on tissue biopsies to assess the presence of lobular carcinoma in situ (LCIS). The study found significant differences in myokine concentrations across the groups. Irisin levels were highest in the metastatic group (G6), while decorin levels showed significant variations across the different patient groups. Histological analysis revealed characteristic changes of LCIS, including irregular lobular structures, hyperplasia, and inflammatory cell infiltration. This study highlights the potential role of myokines, particularly irisin and decorin, as biomarkers for breast cancer progression. Elevated irisin levels in advanced stages suggest its involvement in tumor development and metastasis.

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Full-length research paper
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 49-66; doi:10.24412/2500-2295-2025-3-49-66
Abstract Full Text

Green plant-based nanoparticles are becoming increasingly popular as a substitute for physical and chemical methods. A technique was used to synthesize selenium nanoparticles (SeNPs) using an ethanol extract of aerial parts of Adiantum capillus-veneris L. (ACV) as reducing agents for the H2SeO3 solution. The SeNPs were characterized using UV-vis, FTIR, AFM, SEM, XRD, EDX, and a zeta potential analyzer. The UV-Vis spectrum showed peaks at 269.0 nm and 311 nm. The FTIR spectrum of synthesized SeNPs confirms the existence of functional groups linked to bioactive molecules. The AFM results showed the lowest rate of nanosize reduction at 53.7 nm for nanosizes less than 100 nm. The SEM showed SeNPs with an appearance of small spherical with a diameter range of 27.91–12.28 nm. The XRD patterns of SeNPs synthesized by ACV extraction showed peaks at 28.48 and 58.76. The EDX spectrum showed elements such as Ca, Na, Mg, and K from the ACV leaf extract. The zeta potential of ACV SeNPs was 20.99 mV with a negative charge. The biological testing of SeNPs showed that they have antioxidant properties using the DPPH test, which was notably different from vitamin C. The in vitro cytotoxicity of SeNPs was investigated using the MTT assay. The results showed a non-toxic effect on the normal human fibroblast cell line (NHF) and anticancer activity against the breast cancer cell line (MCF-7).

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Invited review
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 28-48; doi:10.24412/2500-2295-2025-3-28-48
Abstract Full Text

Familial hypercholesterolemia (FH) is a prevalent inherited lipid disorder marked by elevated low-density lipoprotein cholesterol (LDL-C) from early life, significantly increasing the risk of premature atherosclerotic cardiovascular disease (ASCVD). Recent advances in pharmacotherapy have transformed treatment possibilities, particularly for patients unresponsive to traditional therapies. This review synthesizes current evidence on emerging lipid-lowering agents, including PCSK9 monoclonal antibodies (e.g., evolocumab), small interfering RNA-based therapies (e.g., inclisiran), and angiopoietin-like protein 3 (ANGPTL3) inhibitors (e.g., evinacumab). Clinical trials demonstrate that these agents achieve substantial LDL-C reductions – often exceeding 40% – with favorable safety profiles, even in homozygous FH patients with null LDL receptor activity. Additionally, advances in genomic research have enabled more precise classification of pathogenic variants in genes such as APOB and ANGPTL3, improving diagnostic accuracy and guiding targeted therapy. The integration of these pharmacologic and genetic strategies represents a significant shift toward individualized management of FH. Further long-term and population-based studies are needed to validate these approaches and ensure equitable access across healthcare settings.

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Full-length research paper
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 13-27; doi:10.24412/2500-2295-2025-3-13-27
Abstract Full Text
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Full-length research paper
Printed September 15, 2025;
Published ahead of print September 15, 2025; Printed September 15, 2025; OM&P 2025 Volume 12 Issue 3, pages 5-12; doi:10.24412/2500-2295-2025-3-5-12
Abstract Full Text

Breast cancer is a severe global health issue, having a high fatality rate worldwide. Because conventional cancer therapy is linked to tumour spread, drug resistance, and chemotherapy side effects, researchers should look into non-traditional methods. One intriguing strategy to deal with this issue is using nanoparticles and natural compounds like Lactobacillus metabolites as possible cancer treatments. Here, we tested the cytotoxicity of Lactobacillus cell-free supernatant (CFS), gold nanoparticles (AuNPs), and their combination against two cell lines MDA-MB-231 and Rat Embryonic Fibroblasts (REF) using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and percentage of cell viability was recorded. Results showed a synergistic impact of the combination on MDA-MB-231 cells when the IC50 recorded was 70 µg/ml compared to treatments of CFS and AuNps alone when the IC50 recorded were 187 and 196 µg/ml respectively. On rat embryonic fibroblasts (REF) CFS displayed the most cytotoxic impact with IC50 equal to 115 µg/ml followed by combination treatment (IC50 = 693 µg/ml) and then by AuNPs with recorded IC50 of 895 µg/ml. In summary, we demonstrated that Lactobacillus cell-free supernatant, gold nanoparticles and their combination represent a promising candidate as anticancer agents. The cytotoxicity against breast cancer cell line was enhanced when the supernatant was combined with gold nanoparticles while the supernatant gave the best cytotoxic effect against REF cells. 

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Full-length research paper
Printed May 30, 2025;
Published ahead of print May 30, 2025; Printed May 30, 2025; OM&P 2025 Volume 12 Issue 2, pages 147-156; doi:10.24412/2500-2295-2025-2-147-156
Abstract Full Text

The article presents the peculiarities of adaptive reactions of heart work to functional tests in young badminton players and children not engaged in sports at the age of 8-12 years. Continuous recording of electrocardiogram registration of children during the whole research protocol was carried out. It was shown that there are reliable changes of electrocardiographic parameters of heart work on active orthostatic test, as well as on the test with breath-holding. The analysis of electrocardiogram showed the presence of adaptive mechanisms of cardiovascular system of badminton players at the initial stage of sports training, it reflects a higher level of body fitness and contractility of the heart. 

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Full-length research paper
Printed May 30, 2025;
Published ahead of print May 30, 2025; Printed May 30, 2025; OM&P 2025 Volume 12 Issue 2, pages 133-146; doi:10.24412/2500-2295-2025-2-133-146
Abstract Full Text

Purulent-septic skin infections occupy a leading position in the morbidity structure of newborns in obstetric hospitals, with Staphylococcus aureus identified as the primary etiological agent. Whole-genome sequencing (WGS) enables the acquisition of highly detailed genomic data on the spectra of pathogenicity genes, the mobilome, and the resistome of epidemic strains, as well as facilitating intraspecific typing of isolates. Aim of the study: To apply WGS technology to gain new insights into the genetic characteristics of S. aureus strains isolated during a period of epidemic occurrence in an obstetric hospital. This study employed WGS along with a range of bioinformatic tools, including dendrogram construction, calculation of average nucleotide identity (ANI) indices, and genetic mapping. The analysis established that the etiological agent of the epidemic outbreak of pemphigus neonatorum was a population of hospital-associated S. aureus ST121 t435 strains, isolated from both a healthcare worker and affected newborns. Strains of this genotype had not previously been associated with staphyloderma and were characterized by the presence of the eta gene (exfoliative toxin A) and two prophage-associated determinants of Panton-Valentine leukocidin, suggesting a high potential for horizontal gene transfer and dissemination among other S. aureus strains circulating within the hospital environment. Seven strains demonstrated resistance to oxacillin, attributed to modifications in native penicillin-binding proteins – an alternative mechanism to the well-known mec-mediated methicillin resistance pathway. These findings underscore the necessity of incorporating WGS technologies into molecular epidemiological surveillance in obstetric healthcare settings.

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Full-length research paper
Printed May 30, 2025;
Published ahead of print May 30, 2025; Printed May 30, 2025; OM&P 2025 Volume 12 Issue 2, pages 123-132; doi:10.24412/2500-2295-2025-2-123-132
Abstract Full Text

The aim is to determine the role of polymorphic loci of IL-1β, IL-10, TNF-α genes in families of patients with Helicobacter pylori-associated diseases. Materials and methods: Molecular genetic identification of H. pylori was carried out by PCR. Determination of cytokine gene polymorphisms (IL-1β (-31T/C), TNF-α (-308 G/A), IL-10 (-592C/A) and (+1082G/A) in 108 individuals – family members of individuals with chronic H. pylori-associated gastritis, was carried out by allele-specific PCR in real time. Results: H. pylori DNA was detected in 55.6% of patients' relatives, which is higher than the average prevalence in Russia (35.3%) and the Volga Federal District (33.0%). The distribution of gene polymorphisms of the studied cytokines in relatives of patients with and without H. pylori infection differed significantly. In H. pylori-infected family members, the T/T genotype and T allele of IL-1β (-31T/C), the C/C genotype of IL-10 (-592 C/A), and the G/G genotype of TNFα (-308 G/A) were significantly more frequently detected. No significant differences in IL-10 polymorphisms (+1082 G/A) were found in H. pylori positive and H. pylori negative individuals. Conclusions: IL 1β (-31T/C) T/T, IL 10 (-592 C/A) C/C, TNFα (-308 G/A) G/G gene polymorphisms increase the risk of H. pylori infection by more than 2 times. Carriers of such genotypes constitute a risk group for H. pylori-associated diseases, and in case of subclinical infection they are a source of infection and reinfection of relatives. Identification and treatment of infected family members is an important task in preventing the spread and recurrence of H. pylori infection.

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Full-length research paper
Printed May 30, 2025;
Published ahead of print May 30, 2025; Printed May 30, 2025; OM&P 2025 Volume 12 Issue 2, pages 114-122; doi:10.24412/2500-2295-2025-2-114-122
Abstract Full Text

The effect of a surgical laser on the physicochemical properties of molecules of two model proteins was studied: human immunoglobulin IgG and bovine serum albumin. After exposure to laser radiation, the optical density of protein solutions changes, the fluorescence intensity decreases, and the refractive index of the solutions does not change significantly. No massive damage or ruptures of the protein polypeptide chain were observed; on the contrary, intense aggregation of protein molecules was recorded. Thus, when exposed to a laser scalpel, partial denaturation and aggregation processes prevail in IgG and bovine serum albumin solutions, and aromatic amino acid residues are damaged to a lesser extent.

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