scholarly journals Assessment of current methods of laboratory diagnosis of bacterial vaginosis

2014 ◽  
Vol 63 (1) ◽  
pp. 26-32
Author(s):  
Kira Valentinovna Shalepo ◽  
Veronika Victorovna Nazarova ◽  
Yulia Nicolaevna Menukhova ◽  
Tatiana Andreevna Rumyantseva ◽  
Alexander Evgenievich Guschin ◽  
...  

41 women with polycystic ovary syndrome (PCOS) and 15 healthy women of reproductive age were examined to evaluate ovarian aromatase activity. Aromatase activity was determined by the decrease of estradiol level after peroral intake of aromatase inhibitor letrosol. To examine aromatase activity of antral follicle (∆E2) was divided on the blood level of antimullerian hormone (AMH), which is corresponded to the number of antral follicles. Significant variations of aromatase activity of antral follicles in patients with PCOS were determined: in 34.1 % of women it was within physiological ranges, in 48.8 % of women it was decreased and in 17.1 % of women it was increased. Aromatase activity of antral follicles in patients with PCOS correlated with blood levels of estradiol (r = 0.67), estron (r = 0.27), free testosterone(r = 0.43), androstendion (r = 0.34) and body mass index (r = 0.30). Aromatase activity had reverse correlation with number of antral follicles. Athors suggest that the sensitivity of the ovaries to gonadotropinic stimulation is decreased in patients with PCOS and low aromatase activity.

2014 ◽  
Vol 63 (1) ◽  
pp. 10-16 ◽  
Author(s):  
Igor Pavlovich Nikolayenkov ◽  
Vladimir Vsevolodovich Potin ◽  
Marina Anatolyevna Tarasova ◽  
Natalya Nikolayevna Tkachenko ◽  
Maria Igorevna Yarmolinskaya ◽  
...  

41 women with polycystic ovary syndrome (PCOS) and 15 healthy women of reproductive age were examined to evaluate ovarian aromatase activity. Aromatase activity was determined by the decrease of estradiol level after peroral intake of aromatase inhibitor letrosol. To examine aromatase activity of antral follicle (∆E2) was divided on the blood level of antimullerian hormone (AMH), which is corresponded to the number of antral follicles. Significant variations of aromatase activity of antral follicles in patients with PCOS were determined: in 34.1 % of women it was within physiological ranges, in 48.8 % of women it was decreased and in 17.1 % of women it was increased. Aromatase activity of antral follicles in patients with PCOS correlated with blood levels of estradiol (r = 0.67), estron (r = 0.27), free testosterone(r = 0.43), androstendion (r = 0.34) and body mass index (r = 0.30). Aromatase activity had reverse correlation with number of antral follicles. Athors suggest that the sensitivity of the ovaries to gonadotropinic stimulation is decreased in patients with PCOS and low aromatase activity.


2016 ◽  
Vol 65 (1) ◽  
pp. 54-61 ◽  
Author(s):  
Ekaterina M Timofeeva ◽  
Elena V Misharina ◽  
Igor P Nikolaenkov ◽  
Yanina A Samoylovich ◽  
Natalya N Tkachenko

In order to study ovarian flavor ase activity in polycystic ovary syndrome (PCOS) examined 49 patients with PCOS and 33 healthy women of reproductive age. Aromatase activity determined using estradiol/number of antral follicles in both ovaries ratio (Е2/n). Values ovarian aromatase positively correlated (p < 0.05) with the results of its determination by a test with the aromatase inhibitor letrozole in PCOS. Reduced aromatase activity of antral follicles was present in 59 % of patients with PCOS. These data indicate that Е2/n ratio allows to evaluate ovarian aromatase and that an absolute or relative deficiency of ovarian aromatase underlies the pathogenesis of PCOS.


2020 ◽  
Vol 14 ◽  
pp. 263349412091303
Author(s):  
Preetham Rao ◽  
Priya Bhide

Polycystic ovary syndrome is a common endocrinological condition which is found to be prevalent in 5–10% of women of reproductive age. Historically, a combination of anovulation and androgen excess was considered a hallmark in the diagnosis of polycystic ovary syndrome. Addition of ultrasound features of polycystic ovary syndrome has improved the detection of variation in the polycystic ovary syndrome phenotype. Despite the widespread use of consensus diagnostic criteria, there remain several unresolved controversies in the diagnosis of polycystic ovary syndrome. Difficulty arises in methods of assessment and types of androgens to be measured to detect biochemical hyperandrogenism, setting a cut-off value for the diagnosis of clinical hyperandrogenism, setting an ultrasound threshold of antral follicle count to diagnose polycystic ovaries and also diagnosing this condition in adolescence where there is no clear definition for ‘irregular cycles’. This article looks at various controversies in the diagnosis of polycystic ovary syndrome.


2021 ◽  
Vol 2 ◽  
pp. 27-31
Author(s):  
V.G. Syusyuka ◽  
M.Y. Sergienko ◽  
G.I. Makurina ◽  
O.A. Yershova ◽  
A.S. Chornenka

The objective: on the basis of a comprehensive examination of women of reproductive age to establish the frequency of phenotypes (clinical variants) of polycystic ovary syndrome (PCOS).Materials and methods. 34 patients (main group) who complained of menstrual disorders and/or dermatopathies by recommendation of a dermatologist were examined. The control group is represented by 30 women without gynecological and somatic pathology. The mean age of women in the main group was 26,4±0,9 years and 29,1±0,9 years in the control group (p>0,05). The age of women in the study groups ranged from 18 to 35 years. Patients underwent a comprehensive examination to assess the severity of hirsutism and the severity of acne, as well as the body mass index was determined. All women underwent ultrasound examination in the dynamics and quantitative assessment of the concentration of hormones in the blood plasma, namely cortisol, thyroid-stimulating hormone, prolactin, free testosterone and its index, androstenedione, dehydroepiandrosterone sulfate, 17-α-OH-progesterone, sex hormone binding globulin. Variation-statistical processing of the results was carried out using the program «STATISTICA 13».Results. The results of the conducted research show that 73,5% had menstrual irregularities, and 52,9% – infertility. Acne and hirsutism in every 3rd woman were combined and were diagnosed in 47,1% and 41,2% of women, respectively. Ultrasound signs of polycystic ovaries were found in 94,1% of patients according to the criteria for the diagnosis of PCOS, and in 88,2% – anovulation. According to the laboratory examination, hyperadrogenism was found in 55,9%, which is confirmed by statistically significant (p<0,05) predominance in the main group compared with the control group of androstenedione, free testosterone and its index. In addition, it should be noted statistically significant (p<0,05) higher levels of 17-α-OH-progesterone and prolactin in the main group, but their indicators were within the reference values of the norm. Analyzing the frequency of phenotypes (clinical variants) of PCOS, it was found that phenotype A (classical) occurred in 32,4%. Phenotype B (incomplete classical) was diagnosed in 14,7%, and phenotype C (ovulatory) – only 8,8%. The most often, namely in 15 (44,1%) women with PCOS, the phenotype D (non-androgenic) was established.Conclusions. The results of the conducted research show that in women with PCOS clinical symptoms are characterized by menstrual dysfunction (73,5%), infertility (52,9%) and dermatopathies, namely acne (47,1%) and hirsutism (41,2%). According to the laboratory exanination, hyperadrogenism was found in 55,9%, which is confirmed by statistically significant (p<0,05) predominance in the main group compared with the control group of androstenedione, free testosterone and its index. Among the clinical variants of PCOS, the non-androgenic phenotype (phenotype D) was the most often diagnosed, the frequency of it was 44,1%. Classical (phenotype A) and incomplete classical (phenotype B) were found in 32,4% and 14,7%, respectively. It should be noted that only 8,8% of women with PCOS are diagnosed with phenotype C (ovulatory).


2013 ◽  
Vol 62 (2) ◽  
pp. 17-22 ◽  
Author(s):  
Valentina Mikhaylovna Denisova ◽  
Vladimir Vsevolodovich Potin ◽  
Mariya Igorevna Yarmolinskaya ◽  
Yekaterina Mikhaylovna Timofeyeva

Aromatase is the key enzyme, which converts androgens into estrogens. To study the role of aromatase in pathogenesis of endometriosis 57 patients and 15 healthy women of reproductive age were examined. Aromatase activity was detected by reaction of estrogens on aromatase inhibitor letrozol intake. Ovarian source of detected aromatase activity was proved by suppression of reaction on letrozole intake during therapy with gonadotropin- releasing hormone agonist. Aromatase activity in recalculation on antral follicle in endometriosis patients withII–IV stages was higher than in healthy women, though total ovarian aromatase activity was not differed from control group because of low number of antral follicles in endometriosis patients. The disturbance of folliculogenesis in endometriosis is connected probably with hyperestronaemia, which has ovarian and extragonandal origin.


2021 ◽  
Author(s):  
Olga Glavnova ◽  
Ludmila Velikanova ◽  
Natalia Vorokhobina ◽  
raviliy Galakhova ◽  
Ekaterina Malevanania ◽  
...  

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Hassan Kahal ◽  
Stephen L. Atkin ◽  
Thozhukat Sathyapalan

Polycystic ovary syndrome (PCOS) is a common disorder affecting women of reproductive age and it is associated with increased cardiovascular risk. Obesity plays an important role in the pathogenesis of PCOS, and the majority of patients with PCOS are obese. Over the last 20 years, the prevalence of obesity has dramatically increased, with probable associated increase in PCOS. Weight reduction plays an integral part in the management of women with PCOS. In this paper, current available weight reduction therapies in the management of PCOS are discussed.


Author(s):  
Sophie Catteau-Jonard ◽  
Cécile Gallo ◽  
Didier Didier

The polycystic ovary syndrome (PCOS) is the most common cause of anovulation and hyperandrogenism in women, affecting between 5 and 10% of women of reproductive age worldwide (1). Although this difficult topic in endocrine gynaecology is under extensive research, controversies still remain about the pathophysiology, diagnosis, and therapy of PCOS. The PCOS phenotype can be structured in three components: manifestations of anovulation, hyperandrogenism, and the metabolic syndrome (of which hyperinsulinaemia secondary to insulin resistance is the central abnormality). The latter two are addressed in other chapters. Our knowledge about the mechanism of disturbed folliculogenesis in PCOS that is responsible for its reproductive aspects has much increased these last years, thus opening new avenues for the diagnostic and therapeutic approaches.


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