For the metagenomic characterization of potential taxonomic and functional diversity of microorganisms associated with polycystic ovary syndrome (PCOS) in women, we surveyed five women with PCOS and collected samples of feces, saliva, and serum. After quality processing, we have obtained from 915,594 to 3,880,379 reads; these 16,693 sequences had ribosomal RNA genes, 2,091,990 sequences contained predicted proteins with known functions, and 3,750,261 sequences had predicted proteins with unknown functions. Host DNA accounted for ca. 0.03% and less in datasets of fecal samples, from 1.41 to 24.94% in saliva samples; the remaining sequences were attributed to archaeal, bacterial, or viral DNA. In serum, from 38.18 to 75.77% were characterized as fragments of the human genome, but the remaining sequences were unidentified. Among microbes, a total of one archaeal and eight bacterial phyla were revealed. Viral DNA was detected in several fecal and one saliva sample and was classified as C2likevirus, Flavivirus, and Streptococcus bacteriophage. The metagenome sequence data were deposited at NCBI SRA as BioProject No. PRJNA625611.
Testosterone assessment is essential for detecting biochemical hyperandrogenism, one of the important diagnostic criteria of polycystic ovary syndrome (PCOS) both in clinical practice and in epidemiological studies. Currently, tandem liquid chromatography-mass spectrometry (LC-MS/MS) is the most preferred technique to measure testosterone level in women. Its validation is important to reproducibility of androgen tests results for clinical practice and for epidemiological studies of the prevalence PCOS.The aim of the study. To develop and validate a method for determining total testosterone in blood serum using highly efficient LC-MS/MS to assess androgenemia in the epidemiological study of the prevalence of PCOS and its phenotypes in Eastern Siberia (ESPEP STUDY).Materials and methods. We determined a total testosterone level in serum blood using triple quadrupole mass spectrometer LCMS-8060 (Shimadzu, Japan). The protocol of technique was developed using self-prepared purified human testosteronefree serum with a known concentration of analyzed compound. We used the serum samples of women of reproductive age to test the developed method.Results. Optimum chromatographic conditions were obtained with a Kromasil 100-2.5-C18 column (2.1 mm × 100 mm; AkzoNobel, Netherlands), and an isocratic elution mode using a mobile phase consisting of acetonitrile and 0.1 % aqueous solution of formic acid. The total flow rate was 0.35 ml/min. The lower limit of quantification was 5 ng/dl with an average accuracy of 100.2 %. During the approbation of the method in a test population sample of 1138 premenopausal women (mean age – 34.3 ± 6.3 years), the median testosterone concentration was 26.9 ng/dl.Conclusion. It was found that the proposed method for determining testosterone in blood serum has acceptable linearity and reproducibility and meets the requirements for bioanalytical methods under the regulatory documentation. This method can be used for clinical practice and epidemiological study of the prevalence of PCOS.
Aim. To establish cut-off values for the concentrations of complement C3 and ceruloplasmin, diagnostic markers of reduced antral follicle count (AFC) and anti-Müllerian hormone (AMH) which both indicate diminished ovarian reserve, in women of reproductive age.Materials and Methods. Here we enrolled 864 women (18-40 years of age, average age 31.70 ± 5.14 years) who underwent an annual medical examination in 2017–2019 in the Irkutsk Region and the Republic of Buryatia. Reduced AFC was defined as ≤ 5 antral follicles in each ovary at pelvic ultrasound examination whilst reduced AMH was defined as < 1.2 ng/mL. In total, 112 women had reduced ovarian reserve and 752 were included into the control group. In addition to AMH, we also measured serum prolactin, gonadotropins, inhibin B, estradiol, complement C3, and ceruloplasmin using enzyme-linked immunosorbent assay. The cut-off values were determined by plotting a receiver operating characteristic (ROC) curve and calculating the area under the curve (AUC).Results. The cut-off level of complement C3 was 894 (867; 1355.5) mg/mL [AUC: 0.769 (0.635; 0.904)] in women with reduced AFC (≤ 5) and 981.5 (916.5; 1467.5) mg/mL [AUC: 0.62 (0.493; 0.746)] in women with reduced AMH (< 1.2 ng/mL). The cut-off level of ceruloplasmin was 1.745 (1.625; 1.975) mg/mL [AUC: 0.859 (0.759; 0.96)] in women with reduced AFC (≤ 5) and 1.975 (1.665; 2.15) mg/mL, [AUC: 0.662 (0.542; 0.782)] in women with reduced AMH (< 1.2 ng/mL).Conclusion. We have established the cut-off values for the serum complement C3 and ceruloplasmin in women with reduced AFC and AMH, indicators defining diminished ovarian reserve in women of reproductive age.
Uterine fibroid is one of the most common gynecological diseases in women of reproductive age and many aspects of this disease remain the subject of investigation. In particular, the role of the metabolic syndrome is of interest as a potential predictor of uterine fibroid or a comorbid condition that has pathogenetic significance. The aim of this literature review is to systematize current data on the prevalence and associations of the metabolic syndrome and uterine fibroid in women of reproductive age. Literature search was carried out using the scientific literature databases eLIBRARY, PubMed, NCBI, CyberLeninka, and the official IDF website for the period from 2010 to 2022. In PubMed search, we used the following terms: uterine fibroid, metabolic syndrome, uterine fibroid and metabolic syndrome, uterine myoma and metabolic syndrome, uterine myoma and metabolic disorders, uterine myoma and MetS. A total of 439 sources were analized, 32 sources met the search criteria. Results. An analysis of the largest epidemiological studies conducted in recent years, both in non-selective populations and in hospital samples, demonstrates a significant prevalence of both uterine fibroid and metabolic syndrome among women. The results presented in the publications which were included in the review indicate that there is a relationship between the presence of uterine fibroid and the manifestations of the metabolic syndrome. Conclusions. Uterine fibroid and metabolic syndrome are mutually aggravating conditions. Women with uterine fibroid have a worse risk profile for cardiovascular disease, and the presence of metabolic syndrome increases the risk of uterine fibroid. One of the ways to reduce the risk of occurrence and growth of uterine fibroid is the timely correction of the metabolic syndrome and its components. On the other hand, the presence of uterine fibroid should be considered as a basis for active detection of metabolic disorders and cardiovascular risks.
Данная статья представляет собой обзор публикаций по проблеме хронического системного воспаления (ХСВ) и его роли в патогенезе метаболического синдрома (МС), в частности, ассоциированного с гиперандрогенизмом (ГА). Цель: систематизация имеющихся данных о роли хронического системного воспаления в патогенезе метаболических осложнений гиперандрогенизма. Информационный поиск проводился с использованием интернет ресурсов (PubMed, EMBASE, Google Scholar, E-library), анализировались литературные источники за период 2000-2020 гг. В обзоре отражены современные представления о ХСВ и МС; описаны основные ассоциации МС и ГА. Продемонстрировано, что синдром поликистоза яичников (СПКЯ), как и МС, ассоциирован с ХСВ, инсулинорезистентностью и ожирением. При этом отмечено, что установить причинно-следственный характер данной связи не всегда представляется возможным. В заключительной части обзора обобщены сведения о наиболее значимых маркерах ХСВ, специфичных для МС и ГА. This review addresses aspects of chronic systemic inflammation and its role in the pathogenesis of metabolic syndrome (MS) associated with hyperandrogenism (HA). The objective of this review was to systematize available data on the role of chronic systemic inflammation in the pathogenesis of metabolic complications of hyperandrogenism. Search for information was performed in the PubMed, EMBASE, Google Scholar, and E-library databases; 2000-2020 information was analyzed. The article presents the current view on chronic systemic inflammation and MS; major associations of MS and hyperandrogenism (HA) are also described. Polycystic ovary syndrome (PCOS), as well as MS, was shown to be associated with chronic systemic inflammation, insulin resistance, and obesity. However, it is not always possible to establish the causal nature of this relationship. The final part of the review summarizes information about the most significant markers of chronic systemic inflammation, which are specific for MS and HA.
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