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Background: Abnormal uterine bleeding is a prevalent issue among women of reproductive age, primarily stemming from hormonal imbalances. It is characterized by flow volume, duration, and frequency variations outside of pregnancy. Occurring frequently during perimenopause and menstruation, abnormal uterine bleeding is associated with several benign tumors within the female reproductive system, including leiomyomas and endometriomas. Leiomyomas, composed of smooth muscle cells originating from the uterine wall, are influenced by genetic and environmental factors. Objective: This review explored the complications linked with abnormal uterine bleeding and identified crucial genes involved in developing leiomyomas. Methods: The International Federation of Gynecology and Obstetrics (FIGO) has established a classification and terminology system for the causes of abnormal uterine bleeding (AUB). This standardization aims to enhance research efficiency, facilitate diagnosis, and improve the management of clinical cases. Articles in English were searched in the PubMed, Embase, Scopus, ScienceDirect, and MEDLINE databases using the terms abnormal uterine bleeding, leiomyomas, and genes. The selection included systematic reviews, meta-analyses, randomized controlled trials, and reviews. Data were searched from 2016 to May 2023. Results: The research reveals that uterine leiomyomas affect a substantial percentage of females by age 50, underlining the need for a comprehensive understanding of their genetic underpinnings. The knowledge gained from this study contributes to the potential development of more targeted and efficient treatments for leiomyomas, offering hope for improved outcomes in managing these common gynecological disorders. Conclusion The findings underscore the complexity of abnormal uterine bleeding, emphasizing its connection with leiomyomas and the genetic factors influencing their development. By employing the FIGO classification system, researchers and clinicians can standardize their approach to diagnosis and management, paving the way for more efficient future research and diagnostics. Identifying critical genes associated with leiomyomas provides insights into the underlying mechanisms, particularly the involvement of hormones and genetic pathways. [ABSTRACT FROM AUTHOR]

Background: Thermogenesis is influenced by fluctuations in sex hormones during the menstrual cycle in premenopausal women. The thermogenic activity and mass of brown adipose tissue (BAT) are regulated by endocrine factors, including sex hormones and fibroblast growth factor 21 (FGF21). However, the relationship between human BAT and these endocrine fluctuations within individuals remains to be elucidated. This study aimed to assess variations in BAT activity between the luteal and follicular phases and identify correlations with circulating levels of sex hormones and FGF21. Methods: Healthy young women were enrolled in an observational study. Measurement of BAT activity and blood analyses were performed in both the follicular and luteal phases. BAT activity was analyzed using thermography with 2-h cold exposure. Plasma 17β-estradiol, progesterone, and FGF21 levels were determined by enzyme-linked immunosorbent assay. A comparative analysis within individuals was conducted in 13 women to compare the follicular and luteal phases. Furthermore, sensitivity analysis was carried out in 21 women during the follicular phase only. Results: Plasma 17β-estradiol and progesterone levels were significantly higher in the luteal phase, whereas plasma FGF21 level was significantly higher in the follicular phase. Comparison analysis found no significant differences in cold-induced BAT activity between the follicular and luteal phases in young women. Correlation analysis in both comparison and sensitivity analyses found that plasma 17β-estradiol and progesterone levels were not associated with BAT activity, whereas plasma FGF21 levels were significantly and positively correlated with BAT activity only in the follicular phase. In addition, plasma 17β-estradiol levels in the follicular phase were significantly and positively associated with plasma FGF21 levels in both the comparison and sensitivity analyses. Conclusions: The thermogenic activity of BAT during cold exposure was comparable between the follicular and luteal phases in young women. Higher BAT activity was associated with elevated levels of plasma FGF21 only in the follicular phase, which is related to increased plasma 17β-estradiol levels. [ABSTRACT FROM AUTHOR]

The neurodevelopmental toxicity of anesthetics has been confirmed repeatedly, and esketamine is now widely used in pediatric surgeries. Oligodendrocyte precursor cells (OPCs) evolved into mature oligodendrocytes (OLs) and formed myeline sheath during the early brain development. In this study, we investigated whether esketamine exposure interrupted development of OPCs and induced hypomyelination in rats. Further we explored the roles of PI3K/Akt phosphorylation in OPCs development and myelination. Sprague Dawley rats with different ages (postnatal day (P) 1, 3, 7 and 12) were exposed to 40mg/kg esketamine. Progesterone treatment was given (16 mg/kg per day for 3 days) 24 h after esketamine exposure via the intraperitoneal route. Corpus callosum tissues were collected at P8 or P14 for western blot and immunofluorescence analyses. Esketamine exposure at P7 and P12 significantly reduced myelin basic protein (MBP) expression and CC1+ OLs number in corpus callosum. Esketamine exposure at P7 not only aggravated the mature OLs apoptosis, also decreased the OPCs proliferation and differentiation, which was related with dephosphorylation of PI3K/Akt. Progesterone was able to promote OPCs differentiation and ameliorate esketamine-induced hypomyelination by enhancing PI3K/Akt phosphorylation. Stage-dependent abnormality of OPCs/OLs after esketamine leads to the esketamine-induced hypomyelination. Esketamine interrupted OPCs evolution via PI3K/Akt signaling pathway, which can be ameliorated by progesterone. [ABSTRACT FROM AUTHOR]

Objectives: The queen is recognised as an induced ovulator. Ovulation without male contact is generally regarded as spontaneous. The aim of this study was to provide an estimate of the incidence of spontaneous ovulation in a population of intact queens presented to a veterinary care facility for both reproductive and non-reproductive reasons. The secondary objective was to determine the roles of age, breed, body weight, presence of tom cats or other cycling queens, and physical contact with humans on triggering spontaneous ovulation, along with its implications. Methods: Serum samples from post-pubertal intact queens presented between January 2020 and June 2023 to the Veterinary Teaching Hospital of the University of Padova, Italy, were retrieved and assayed for progesterone (P4) levels. Serum P4 above 2.0 ng/ml without a history of male contact was considered as proof of spontaneous ovulation. Results: In total, 31 serum samples from 29 intact post-pubertal queens were obtained. Of the 31 samples, 14 had a P4 concentration above 2.0 ng/ml and 9/29 (31.0%) queens ovulated spontaneously. The mean age and weight of the nine spontaneously ovulating queens were 4.3 ± 5.7 years and 3.7 ± 0.8 kg, respectively. One queen ovulated spontaneously at her first heat at 6 months of age, which makes it the earliest spontaneous ovulation reported. Conclusions and relevance: As both our findings and previous publications indicate that the incidence of spontaneous ovulation in queens is consistently ⩾30%, cats should not be considered strictly induced ovulators, but as a species in which ovulation can be either spontaneous or induced. Since the risk of progesterone-dependent conditions (cystic endometrial hyperplasia – pyometra complex, feline mammary hypertrophy) is increased in these queens, veterinarians should be aware and advise breeders and clients accordingly. Plain language summary: Female cats ovulate upon vaginal stimulation exerted by the spikes of the male's penis while mating, which makes them induced ovulators. When ovulation occurs without male contact, it is considered spontaneous. There are several factors that are thought to facilitate this non-induced ovulation, but no consensus on their relevance. The aim of this study was to provide an estimate of the rate of spontaneous ovulation in a population of intact female cats of various breeds presented to a veterinary care facility, as well as the influence of factors such as age, breed, body weight, presence of male cats or other cycling females, and physical contact with humans on triggering spontaneous ovulation. In addition, possible implications arising from progesterone exposure were assessed. Progesterone was retrospectively assayed in the serum of adult cycling female cats presented to the Veterinary Teaching Hospital of the University of Padova, Italy, between January 2020 and June 2023. Values above 2.0 ng/ml without a history of male contact were considered proof of spontaneous ovulation. Out of 29 cats, nine (31%) ovulated spontaneously, with one female having done so at puberty (6 months of age), which makes it the first spontaneous ovulation ever reported in a pubertal queen. As spontaneous ovulation has been found to occur at a rate of more than 30% both in our and in previous publications on this topic, we propose that cats should be considered both an induced and a spontaneously ovulating species. Since animals that ovulate spontaneously, and therefore experience additional luteal phases, are at a higher risk of developing progesterone-dependent conditions, veterinarians should be aware and advise breeders and clients accordingly. [ABSTRACT FROM AUTHOR]

Attention Deficit/Hyperactivity Disorder (ADHD) between the sexes is generally considered to be more similar than different, however, it appears that males tend more towards hyperactivity, impulsivity and externalising symptoms and females more towards inattention and internalising symptoms. This variance in ADHD symptom presentation between the sexes* may be influenced by sex hormones and hormonal fluctuations across the menstrual cycle. This scoping review describes the impact of sex hormones on adult ADHD neurobiology and symptomatology. As this field of investigation is emerging, a limited number of observational papers including pre-clinical and case studies were selected for review. Based on the reviewed studies, it appears that oestrogen concentration and balance relative to progesterone plays a role in the symptomatology, and possibly the neurobiology, of ADHD. Further research is needed to address this relationship, an understanding of which is essential for targeted and personalised naturopathic treatment approaches for women with ADHD. [ABSTRACT FROM AUTHOR]

The importance of menopause and the short and long term effects of this have been underestimated and under discussed. With the media currently highlighting issues that affect women, it is important to understand menopause, the effects of this and how to mitigate these effects. When prescribing any drug or treatment, the risks must be properly discussed and women given as much information as possible to make an informed choice about their health. This is likely to look different for every woman who comes for a consultation as menopause and subsequent reactions to HRT are individual. [ABSTRACT FROM AUTHOR]

Periodontal disease is a risk factor for preterm delivery, and elevated female hormone levels during pregnancy promote hormone-dependent periodontopathogenic bacterial growth and gingivitis. Although the saliva of pregnant women contains female hormones at elevated levels, their effects on the gingiva are poorly understood. Therefore, in this study, we investigated the effects of estradiol and progesterone stimulation on gingival epithelial cells via ingenuity pathway analysis. Human gingival epithelial progenitors were cultured in a CnT-Prime medium; 17β-estradiol (E2) and progesterone (P4) were used as the reagents. Cells treated with dimethyl sulfoxide alone were used as the control group. Cells in the control and experimental groups were incubated for 12 h. RNA was extracted from the cultured cells, RNA-Seq was performed, and pathway analysis was conducted. Differentially expressed genes were detected for 699 (over 2-fold increase) and 348 (decrease) genes in group E2 and for 1448 (increase) and 924 (decrease) genes in group P4 compared with those in the control group (FDR <0.05, n = 4). The z-scores of the pathways suggest that E2 and P4 increased the activity of the wound healing signaling pathway. The activation of this pathway was higher in the E2 and P4 groups than that in the control group. The results of this study suggest that estradiol and progesterone may affect gingival homeostasis and wound healing. [ABSTRACT FROM AUTHOR]

The rise of Artificial Intelligence (AI)-generated faces that are identical to actual ones is both a technological innovation and a major concern. While considering the implications, some of the existing security systems are unable to differentiate between a high-quality deep-fake and an actual intruder's face. For instance, the risks are quite high at an airport security checkpoint, where facial recognition is the first line of security against unauthorized entry. The primary concern here is how trustworthy the computer programs and algorithms will be in recognizing counterfeits among a plethora of actual and artificially generated faces. This necessitates the need to introduce machine learning approaches to differentiate between actual and fraudulent faces, particularly when AI-generated faces are involved. Effective artificial intelligence systems must be adaptive and change quickly in the face of more complex threats rather than simply recognizing them. AI-generated faces are becoming more convincing by the day, increasing the risk of their exploitation. This poses the need to ensure that the technology on which people rely should be robust and trustworthy in critical situations, whether it is a security checkpoint or an e-commerce site. In this perspective, this study has attempted to develop and implement Artificial Intelligence-powered solutions to detect the artificial faces while ensuring reliability for critical functions in an age where reality constantly blends with fiction. [ABSTRACT FROM AUTHOR]

Although the fluctuations of hormones over the menstrual cycle are well recognized, this study investigated the variability in these patterns for individual women. This study examined a set of daily blood hormone results from an underlying data set of previous research. Hormones included follicle-stimulating hormone (FSH), luteinizing hormone, progesterone, and estradiol taken over one menstrual cycle in 20 women of reproductive age (age 20–36 years), with ultrasound-confirmed ovulation. Although every woman's profile of hormone changes was consistent with the expected physiological sequence of events, there was notable variability in the timing and peak levels. Variability in the length of the follicular phase was greater than in the length of the luteal phase, with the greater part of the variability in the cycle length being explained by variability in the follicular phase. Lower levels of FSH at the beginning of the cycle were associated with a longer follicular phase. Variability in the timing of events around ovulation was relatively consistent across all women. Variability in the length of the luteal phase was associated with the duration of elevated levels of progesterone. Differences were seen in the extent to which FSH increased at the end of the cycle. This study suggests the variability of the first part of the follicular phase may be due to initial FSH changes. Understanding the variability of menstrual cycle hormones is relevant for all women. Identifying subclinical ovulatory disturbances and variability is important to understand female health, across different populations including menstruating women and female athletes. [ABSTRACT FROM AUTHOR]

Copyright of Arquivos Brasileiros de Oftalmologia is the property of Arquivos Brasileiros de Oftalmologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aimed to compare 9 perfluoroalkyl sulfonic acids (PFSA) with carbon chain lengths (C4-C12) to inhibit human placental 3β-hydroxysteroid dehydrogenase 1 (3β-HSD1), aromatase, and rat 3β-HSD4 activities. Human and rat placental 3β-HSDs activities were determined by converting pregnenolone to progesterone and progesterone secretion in JEG-3 cells was determined using HPLC/MS–MS, and human aromatase activity was determined by radioimmunoassay. PFSA inhibited human 3β-HSD1 structure-dependently in the order: perfluorooctanesulfonic acid (PFOS, half-maximum inhibitory concentration, IC 50 : 9.03 ± 4.83 µmol/L) > perfluorodecanesulfonic acid (PFDS, 42.52 ± 8.99 µmol/L) > perfluoroheptanesulfonic acid (PFHpS, 112.6 ± 29.39 µmol/L) > perfluorobutanesulfonic acid (PFBS) = perfluoropentanesulfonic acid (PFPS) = perfluorohexanesulfonic acid (PFHxS) = perfluorododecanesulfonic acid (PFDoS) (ineffective at 100 µmol/L). 6:2FTS (1H, 1H, 2H, 2H-perfluorooctanesulfonic acid) and 8:2FTS (1H, 1H, 2H, 2H-perfluorodecanesulfonic acid) did not inhibit human 3β-HSD1. PFOS and PFHpS are mixed inhibitors, whereas PFDS is a competitive inhibitor. Moreover, 1–10 µmol/L PFOS and PFDS significantly reduced progesterone biosynthesis in JEG-3 cells. Docking analysis revealed that PFSA binds to the steroid-binding site of human 3β-HSD1 in a carbon chain length-dependent manner. All 100 µmol/L PFSA solutions did not affect rat 3β-HSD4 and human placental aromatase activity. Carbon chain length determines inhibitory potency of PFSA on human placental 3β-HSD1 in a V-shaped transition at PFOS (C8), with inhibitory potency of PFOS > PFDS > PFHpS > PFBS = PFPS = PFHxS = PFDoS = 6:2FTS = 8:2FTS. [ABSTRACT FROM AUTHOR]

Chorioamnionitis is an adverse condition in human pregnancy caused by many bacterial pathogens including Escherichia coli (E. coli); which has been associated with higher risk of preterm birth. We recently reported that human maternal decidua (MDec) tissue responds to E. coli infection by secreting extracellular heat-shock proteins (e Hsp)-60, −70 and interlukin-1β (IL-1β). Previous studies have shown that progesterone (P4) regulates the immune response, but it is unknown whether P4 inhibits the secretion of e Hsp. The aim of this investigation was to determine the role of P4 on the secretion of e Hsp-27, -60, −70 and IL-1β in MDec after 3, 6, and 24 h of E. coli infection. Nine human feto-maternal interface (HFMi) tissues were included and mounted in the Transwell culture system. Only the maternal decidua (MDec) was stimulated for 3, 6 and 24 h with E. coli alone or in combination with progesterone and RU486. After each treatment, the HFMi tissue was recovered to determine histological changes and the culture medium recovered to evaluate the levels of e Hsp-27, -60, −70 and IL-1β by ELISA and mRNA expression by RT-PCR. No structural changes were observed in the HFMi tissue treated with P4 and RU486. However, stimulation with E. coli produces diffuse inflammation and ischemic necrosis. E. coli induced infection decreases, in time- and dose-dependent manner, e Hsp-27 and increases e Hsp-60, e Hsp-70 and IL-1β levels. In contrast, incubation of HFMi tissue with E. coli + P4 reversed e Hsp and IL-1β secretion levels relative to E. coli stimulation group but not relative to the control group. The same profile was observed on the expression of e Hsp-27 and e Hsp-60. we found that progesterone modulates the anti-inflammatory (e Hsp-27) and pro-inflammatory (e Hsp-60 and e Hsp-70) levels of e Hsp induced by E. coli infection in human choriodecidual tissue. e Hsp-60 and e Hsp-70 levels were not completely reversed; maintaining the secretion of IL-1β, which has been associated with adverse events during pregnancy. [Display omitted] • Establish whether P4 regulates eHsp and IL-1β induced by E. coli infection in human choriodecidual tissue. • P4 increases secretion of eHsp-27 and reduces eHsp-60 and eHsp-70. • The secretion of Hsp-60 and -70 favor the IL-1β pathway. • These results provide an insight on P4 lack of effectiveness to reduce IL-1β levels described in clinical trials. [ABSTRACT FROM AUTHOR]

This scoping review aims to provide a comprehensive overview of biological mechanisms underlying the menstrual cycle's impact on various performance-determining anatomical and physiological parameters. It is intended to identify the various proposed vital concepts and theories that may explain performance changes following hormonal fluctuations. The review was performed following the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews protocol. A framework of six groups was built such as skeletal muscle physiology, muscle damage, tendons and ligaments, neuromuscular control, cardiovascular system, and exercise metabolism to cluster studies thematically and to specify the concept of "performance." Original research studies published between 1970 and 2021 that were conducted with a naturally menstruating population were considered. Changes in performance regarding the menstrual cycle phase were crucial for inclusion. Topic-specific reviews and systematic reviews were included if they addressed the impact of female steroid hormones on any structure or part of the human body. The review indicates that the impact of estrogen and progesterone is primarily responsible for observed changes in athletic performance during the menstrual cycle. Estrogen seems capable of fostering protein synthesis, diminishing collagen metabolism, preventing muscle damage due to its antioxidant effects, and restraining inhibitory, while promoting excitatory, control by interacting with neurotransmitters. Progesterone is assumed to increase thermoregulation and enhance ventilatory drive by interacting with hypothalamic pathways and may further amplify inhibitory control by interacting with neurotransmitters. The female steroid hormones and the endocrinologic system collaborate in complex interrelationships with biological systems to maintain homeostasis. However, proposed mechanisms are often derived from animal studies and studies conducted in vitro and still remain to be proven true in the human regularly menstruating population. In the future, it is crucial to rely on studies that followed the methodology for cycle monitoring recommendations thoroughly. Otherwise, it is not possible to determine whether hormonal fluctuations cause observed changes in performance or not. [ABSTRACT FROM AUTHOR]

This study aimed to determine the predictive value of cancer antigen-125 (CA-125) in combination with serum beta-human chorionic gonadotropin (β-hCG) and progesterone in the early detection of ectopic pregnancy (EP). Between May 2019 and May 2020, the cross-sectional study recruited 42 cases of EP and 42 cases of IUP at the same gestational age who visited the Department of Obstetrics and Gynecology, Hospital of Hue University of Medicine and Pharmacy. EP was diagnosed based on surgical (laparoscopy) and postoperative pathology examination. There were significant differences of mean level of β-hCG (2570 mUI/mL vs. 18357.7 mUI/mL), progesterone (10.79 ± 8.16 ng/ml vs. 27.42 ± 4.17 ng/ml) and CA-125 (26.90 ± 10.26 U/mL vs. 70.61 ± 20.89 U/mL) between the EP and the IUP groups (p < 0.001). In the prediction of early diagnosis of EP, the cut-off value of CA-125 at 30.94 U/mL has a sensitivity of 89.3% and a specificity of 87,9%; the cut-off value of β hCG at 2750mIU/ml has the sensitivity of 75%, specificity of 78,8%; the cut-off value of progesterone at 10.24 ng/mL has the sensitivity of 85.7%, specificity of 81.8%. A combination of CA-125, β hCG, and progesterone had a sensitivity of 92.8% and a specificity of 90.9% in early diagnosis of EP. Serum CA-125 levels can be used independently or in combination with other markers in the early diagnosis of EP. • Increased CA-125 can be attributed to the trophoblast's infiltration during placental development. • Currently, there is no consensus regarding the cut-off point and diagnostic value of CA-125 in early diagnosis of ectopic pregnancy. • Serum CA-125 levels can be used independently or in combination with other markers in the early diagnosis of EP. [ABSTRACT FROM AUTHOR]

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OBJECTIVE: The aim of this study was to detect the effect of vitamin D (Vit. D) intake on the mid-luteal estradiol (E2 ), and progesterone (P), and the relation between vit. D, and the adolescents’ mid-luteal E2, and P. PATIENTS AND METHODS: Eighty-five (85) adolescents were recruited for this cohort study after obtaining informed consent. After a detailed history and clinical examination, the body mass index (BMI) of the studied participants was calculated, followed by pelvic sonography to exclude any pelvic pathology. Participants’ blood samples were collected on days 21-22 of the menstrual cycle (mid-luteal) to measure the thyrotropin (TSH) (i.e., to exclude hypothyroidism), prolactin (i.e., to exclude hyperprolactinemia), glycosylated hemoglobin (HbA1C), (i.e., to exclude diabetes), E2, P, and 25(OH)D. Participants received 50,000 IU of vit. D weekly for two months, and on the 3rd month, the mid-luteal E2, P, and 25(OH)D were measured. The mid-luteal E2, P, and 25(OH)D were compared before and after the vit. D intake to detect the effect of vit. D intake (50,000 IU weekly for 2 months) on the mid-luteal E2 and P (primary outcome). Additionally, the relations between vit. D and the adolescents’ mid-luteal E2 and P were detected as secondary outcomes using the correlation analysis (Pearson’s correlation). RESULTS: The mid-luteal E2 and P statistically decreased from 109.3±15.7 pg/mL and 9.8±1.01 ng/mL, respectively to 40.7±10.52 pg/ mL, and 5.2±0.73 ng/mL, respectively, after vit. D intake (p=0.00015; 95% CI: 64.5, 68.6, 72.7, and p=0.0016; 95% CI: 4.3, 4.6, 4.87, respectively). Significant negative correlations between the 25(OH)D, and both the mid-luteal E2 (r -0.661; p<0.00001), and P (r -0.521; p<0.00001) were detected in this study. CONCLUSIONS: The mid-luteal E2 and P statistically decreased after vit. D intake (50,000 IU of vit. D weekly for 2 months). Significant negative correlations between the 25(OH)D, and both the mid-luteal E2 and P were detected in this study. The relation between vit. D and ovarian steroids, and the effect of vit. D intake on ovarian steroids need further larger studies. [ABSTRACT FROM AUTHOR]

Copyright of Revista Veterinaria is the property of Universidad Nacional del Nordeste and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

• Catamenial epilepsy is an increase in seizure frequency during or before menses. • Systematic review of progesterone and its derivatives for catamenial epilepsy. • There is no agreement on dose, duration, and pharmacological formulation. • Efficacy was not demonstrated in randomized controlled trials. • Further research and studies in this field are required. Catamenial epilepsy (CE) is defined as an increase in seizure frequency during specific phases of the menstrual cycle in women with epilepsy. The treatment usually includes a combination of non-hormonal and hormonal therapies. This systematic review summarizes the available data on the efficacy of progesterone and its derivates to treat CE. We performed a systematic search of the literature to identify studies reporting data on the use of progesterone and its derivatives (any type and dose) for the treatment of CE. The main outcome included the efficacy of progesterone and its derivatives on seizure frequency. Nineteen articles (457 patients) were included; four were randomized controlled trials (two comparing progesterone vs placebo and two comparing norethisterone vs placebo). Progesterone was generally administered during the luteal phase (from day 15 to 25) or during perimenstrual exacerbations (from day 23 to 25), with an average dose of 10–30 mg/day to a maximum of 300 mg/day. The therapy, usually well tolerated, was ineffective in the randomized controlled trials; conversely, it was associated with an overall reduction in seizure frequency in case reports and uncontrolled studies. Although data from uncontrolled studies suggest that hormone therapy with progesterone may be useful in the treatment of CE, its efficacy has not been demonstrated in controlled trials. The possible antiseizure effect of progesterone could be mediated by its active metabolite allopregnanolone, making the plasmatic measurement of these hormones mandatory to evaluate efficacy. Further randomized controlled trials should investigate the efficacy of progesterone and its derivatives, addressing these pharmacological issues. [ABSTRACT FROM AUTHOR]

Natural language processing—the branch of artificial intelligence concerned with the interaction between computers and human language—has advanced markedly in recent years with the introduction of sophisticated deep-learning models. Improved performance in natural language processing tasks, such as text and speech processing, have fueled impressive demonstrations of these models' capabilities. Perhaps no demonstration has been more impactful to date than the introduction of the publicly available online chatbot ChatGPT in November 2022 by OpenAI, which is based on a natural language processing model known as a Generative Pretrained Transformer. Through a series of questions posed by the authors about obstetrics and gynecology to ChatGPT as prompts, we evaluated the model's ability to handle clinical-related queries. Its answers demonstrated that in its current form, ChatGPT can be valuable for users who want preliminary information about virtually any topic in the field. Because its educational role is still being defined, we must recognize its limitations. Although answers were generally eloquent, informed, and lacked a significant degree of mistakes or misinformation, we also observed evidence of its weaknesses. A significant drawback is that the data on which the model has been trained are apparently not readily updated. The specific model that was assessed here, seems to not reliably (if at all) source data from after 2021. Users of ChatGPT who expect data to be more up to date need to be aware of this drawback. An inability to cite sources or to truly understand what the user is asking suggests that it has the capability to mislead. Responsible use of models like ChatGPT will be important for ensuring that they work to help but not harm users seeking information on obstetrics and gynecology. [ABSTRACT FROM AUTHOR]

Fufang Meidengmu (FFMDM) is an ethnic herbal medicine form Yunnan province of China, which is often used for the treatment of uterine leiomyoma (UL). Combined Gancao (Glycyrrhiza uralensis Fisch.) and Haizao (Sargassum pallidum (Turn.) C.Ag) in FFMDM represent an herbal pair in the so-called “eighteen antagonistic medicaments” according to traditional Chinese medicine. In this study, we explored the prevention and treatment effects of FFMDM component compatibility on UL in mice. Female Kunming mice were injected for different periods of time with different concentrations of estradiol benzoate (EB) to investigate a feasible method to establish a mice model of UL. Treatment with 0.3mg/kg EB for 15 days was found to be the optimal condition for UL mice models. We then investigate the role of Gancao and Haizao in FFMDM, and explored the underlying mechanism of action of UL mice. Our findings suggested that Gancao and Haizao exerted the favorable effects. In addition, FFMDM is effective in the treatment of UL, and its mechanism was associated with the estrogen (ER) and progesterone receptors (PR). [ABSTRACT FROM AUTHOR]

Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The present study examined the effect of medicinal plants - ginkgo, tribulus (puncture vine), and yucca - on ovarian functions and their response to the toxic influence of toluene. Therefore, we analyzed the effect of toluene with and without these plant extracts on cultured human ovarian granulosa cells. Cell viability and the release of progesterone, insulin-like growth factor I (IGF-I), oxytocin, and prostaglandin F (PGF) were analyzed using the trypan blue test, enzyme immunoassay, and enzyme-linked immunosorbent assay, respectively. The ginkgo, tribulus and yucca were able to suppress ovarian cell viability and alter the release of hormones. Toluene suppressed cell viability and the release of PGF, but not of progesterone, IGF-I, or oxytocin. The negative effect of toluene on cell viability was prevented and even reversed by ginkgo and yucca, whereas its effect on PGF was prevented or inverted by all tested plant extracts. These findings (1) demonstrated the direct toxic effect of toluene on ovarian cells, (2) showed the direct effect of some medicinal plants on ovarian cell functions, and (3) demonstrated the ability of these plants to inhibit the effects of toluene and to act as natural protectors against the suppressive effect of toluene on female reproduction. [ABSTRACT FROM AUTHOR]

OBJECTIVE: Post-Dural puncture headache (PDPH) is a severe and undesirable complication for the patient and anesthesiologist. PDPH is more common in female patients. However, its relationship with plasma estrogen levels has not been demonstrated. This study aimed to investigate the relationship between estrogen levels and PDPH in patients who underwent spinal anesthesia for in vitro fertilization (IVF) with supraphysiological estrogen levels. PATIENTS AND METHODS: In this retrospective study, the data of patients between the ages of 18-45 with the following characteristics were included in the study: those who underwent IVF procedure between January 2021 and August 2022, in the ASA I-II risk group, and who underwent spinal anesthesia using a 25 G Quinke-tipped spinal needle at the L3-L4 or L4-L5 vertebra levels. The 48 patients in the study were in two groups according to their estradiol values: 'Supra physiological estradiol levels' (Group I=24 patients) and 'Normal estradiol levels' (Group C=24 patients). The relationship between PDPH and estrogen, progesterone, spinal needle diameter, and patient demographic characteristics were evaluated. RESULTS: The estrogen and progesterone levels of patients in Group I were higher than in Group C (p<0.001 and p<0.001, respectively). PDPH was present in 6 (25%) patients in Group I and 5 (20.8%) patients in Group C (p=0.731). There was no significant correlation between PDPH and estrogen and progesterone levels (p>0.05). CONCLUSIONS: Since there is no relationship between the supraphysiological estrogen level and PDPH, high serum estrogen level should not be considered as an additional risk factor for PDPH in the decision of anesthesia type for IVF procedure. [ABSTRACT FROM AUTHOR]

Copyright of African Journal of Reproductive Health is the property of Women's Health & Action Research Centre and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: Frozen-thawed embryo transfer (FET) cycles require the use of luteal phase support (LPS) for supporting implantation, endometrial and embryo maturity. Individualized LPS should be chosen according to the used endometrial preparation protocol. The aim of the study was to analyze the effectiveness of two different vaginal Progesterone doses for women who underwent FET cycle and the same endometrial preparation without using the GnRh analogue. PATIENTS AND METHODS: 607 women who underwent FET cycle were included in the study. 305 patients received luteal support with 600 mg/day vaginal Progesterone and 302 patients were treated with 800 mg/day of vaginal Progesterone. RESULTS: In the 800 mg/day group, the mean serum Progesterone concentration on the day of embryo transfer was higher than in the 600 mg group (14.00±6.18 ng/mL and 12.22±5.39, respectively, p < 0.001). Moreover, human chorionic gonadotrophin (hCG) positive and ongoing pregnancy rates were higher in the group of patients who received LPS with 800 mg/day of Progesterone than in the group of patients treated with 600 mg/day of Progesterone. CONCLUSIONS: In patients undergoing FET cycles following endometrial preparation made without previously using the GnRh analogue, 800 mg doses of vaginal Progesterone as LPS improve reproductive outcomes. [ABSTRACT FROM AUTHOR]

OBJECTIVE: Pulmonary aspiration of gastric content is a serious complication of anesthesia. It is unclear what effects different parts of the menstrual cycle have on how long it takes for the stomach to empty. This prospective observational study assessed the relationship between menstrual cycle phases and gastric emptying using ultrasonography (USG) in volunteers of reproductive age. PATIENTS AND METHODS: Between days 8-10 of the menstrual cycle in the follicular phase and days 18-20 of the luteal phase, a total of 24 healthy volunteers received four stomach USG procedures. In both phases, the gastric antrum was evaluated with USG in the right lateral decubitus position after fasting for 10 hours, followed by 2 hours of fasting after liquid intake and 6 hours of fasting after solid food intake. The gastric content, gastric antrum area, and estimated gastric volume determined whether the stomach was full or empty. RESULTS: A full stomach was detected in 8 (8.3%) out of 96 measurements performed on the volunteers. After liquid food intake, a full stomach was detected in 2 subjects in the luteal phase, while all the subjects had an empty stomach during the follicular phase (p=0.500). After solid food intake, a full stomach was detected in 6 subjects in the luteal phase, and again, all subjects had an empty stomach during the follicular phase (p=0.031). CONCLUSIONS: Ultrasound assessment of gastric volume in volunteers of reproductive age has shown that gastric emptying of solid foods is slowed during the luteal phase of the menstrual cycle. [ABSTRACT FROM AUTHOR]

Alveolar soft-part sarcoma (ASPS) is a rare malignant sarcoma with only a few cases reported in the sinus and head and neck region. It shows strong female predominance. Hormone-dependent recurrence was never reported. A 35 year-old woman presented nasal cavity ASPS during her first pregnancy, middle-ear ASPS during the second, and a third ASPS in the sinus outside of any peripartum period, with unfavorable progression and metastasis, terminating in death. Pathology analysis of the tumors showed positive immunolabeling for progesterone receptors in the two peripartum episodes. This was thus the first report of peripartum recurrence of ASPS with strong progesterone sensitivity, reinforcing the suspected biological link between ASPS and progesterone. This case report may be a preliminary finding suggesting progesterone blockers as a novel treatment for recurrent ASPS. [ABSTRACT FROM AUTHOR]

Thermodynamic studies of drug solubility in cosolvent mixtures at different temperatures generate information of great importance for pharmaceutical, medical, and environmental sciences. The objective of this research is to thermodynamically analyze the solubility of progesterone (PG) in cosolvent mixtures {1-octanol (1) + ethanol (2)} from 278.15 K to 318.15 K (nine study temperatures). The solubility of progesterone (in mole fraction) increased with the addition of 1-octanol to the cosolvent mixture, presenting its lowest value (3.474 ± 0.03 × 10-3) in pure ethanol (EtOH) at 278.15 K and its highest value (132.4 ± 3.0 × 10-3) in pure 1-octanol (OCT) at 318.15 K. The solution process of progesterone is endothermic and is driven by the enthalpy of solution. Regarding the thermodynamics of the mixture, the increase in the 1-octanol concentration favors the formation of the cavity and therefore the increase in the solubility of the progesterone. According to the entropic enthalpy compensation (EEC) analysis, it is corroborated that the solution process is driven by enthalpy. Finally, seven models (Apelblat, λh , Yaws, NRTL, Wilson and modified Wilson) were evaluated, which presented MRD% less than 1.0, which demonstrated a good correlation between the data obtained with each of the models and the data obtained experimentally. [ABSTRACT FROM AUTHOR]

Elk (Cervus canadensis) were reintroduced to Tennessee, USA in the early 2000s, with limited reproductive monitoring since initial release. We assessed the efficacy of noninvasive sampling for determining pregnancy using invasive (capture) and noninvasive (fecal collection in the field) techniques at the North Cumberland Wildlife Management Area (NCWMA), Tennessee. We captured 20 female elk 2019–2020, used pregnancy-specific protein B (PSPB) in blood to determine pregnancy and compared results to fecal progesterone metabolite (FPM) concentrations using two commercially available enzyme immunoassay (EIA) kits. Based on PSPB concentrations, 8/11 and 3/4 of captured adult elk (≥2.5 yr of age) were pregnant in 2019 and 2020, respectively; no 1.5-yr-old elk were pregnant (n=5). Using the progesterone EIA kit, FPM concentrations were x̄=192.84±38.63 ng/g (95% CI, 96.48–289.20) for nonpregnant and x̄=536.17±74.98 ng/g (95% CI, 375.97–696.36) for pregnant captured females. For the progesterone metabolite kit, FPM concentrations were x̄=188.16±43.39 ng/g (95% confidence interval [CI], 76.63–299.69) for nonpregnant and x̄=693.52±126.52 ng/g (95% CI, 407.31–979.72) for pregnant captured females. From February to May 2019, we collected 357 fecal samples in 65 areas across 489.62 km2 of the NCWMA. Using extracted DNA and analysis of 15 microsatellites, we identified 62 unique individuals from 128 female fecal samples collected on the landscape. We categorized females from landscape-collected feces as nonpregnant (35.5–40.3%; Metabolite-EIA kits), undetermined (1.6–6.5%; Metabolite-EIA kits), or pregnant (62.9–53.2%; Metabolite-EIA kits) based on a 95% CI of captured female FPM concentrations, giving an overall pregnancy rate of 53.2% using the recommended EIA kit. The pregnancy rate in sexually mature females may be higher, as it was not possible to distinguish age classes of landscape-collected fecal samples; therefore, some may have been from younger age classes not expected to be pregnant. Analysis of FPM may be useful at a population level to detect pregnancy. [ABSTRACT FROM AUTHOR]

Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Abnormal uterine bleeding in the perimenopause is a common gynaecological disorder and may affect 20–50 % of all women. It may be the first sign of premalignant or malignant disease. All women require assessment by means of pelvic ultrasound and an endometrial biopsy to exclude sinister pathology, identify other causes, and plan appropriate treatment. Pharmacological treatment includes antifibrinolytics, non-steroidal anti-inflammatories, combined hormonal contraception, cyclical progestogens and the levonorgestrel intrauterine system (LNG – IUS). Second line treatments may include endometrial ablation, uterine artery embolization, myomectomy or hysterectomy depending on the nature of the pathology. Minimal access techniques though the hysteroscopic, laparoscopic/robotic or vaginal route are increasingly used as the preferred surgical options. Novel treatments, either pharmacological or in the outpatient setting are likely to have a significant contribution in the future. [ABSTRACT FROM AUTHOR]

Introduction: The mechanism for human labour remains poorly understood, limiting our ability to manage complications including spontaneous preterm birth and induction of labour (IOL). The study of fetal signals poses specific challenges. Metabolomic analysis of maternal blood, the cord artery (CA), and cord vein (CV), allows simultaneous interrogation of multiple metabolic pathways associated with different modes of labour onset and birth.Methods: Global mass spectrometry metabolomics analysis was performed on serial samples collected from participants during pregnancy, in latent phase of labour, and following birth (CA, CV, and intervillous (IV) blood), from those who spontaneously laboured and birthed vaginally (SL group), had IOL and birthed vaginally (IOL group), or birthed via elective caesarean section (no labour; ECS group).Results: There were clear differences in fetal and maternal steroid, arachidonate and sphingosine pathways between the SL and IOL groups, despite similar uterine contractions and vaginal birth. The CA/CV ratio for key steroids of the IOL group were more alike the ECS group than the SL group, including progesterone (CA/CV ratio for: SL group=3.5; IOL group=0.5; and ECS group=0.5), and oestriol (CA/CV ratio for: SL group=4.3; IOL group=0.4; and for ECS group=0.2). There were no such changes in the maternal samples.Discussion: These findings indicate that IOL does not reproduce the pathways activated in spontaneous labour. The decreased placental progesterone production observed with spontaneous labour may represent a local intrauterine progesterone withdrawal, which, together with other signals, would activate parturition pathways involving arachidonate and sphingosine metabolism. [ABSTRACT FROM AUTHOR]

We evaluated the performance of a third-generation fluorescence enzyme immunoassay kit (FEIA; Tosoh Bioscience) for progesterone (P4) measurement in canine serum to identify the day of luteinizing hormone (LH) peak and ovulation in bitches. We conducted P4 assays on 54 serum samples using a FEIA and a chemiluminescence immunoassay (CLIA; Siemens). For the FEIA kit, the linearity test, recovery test, inter- and intra-assay CVs, and total error observed (TEo) were calculated. Serum samples from 28 bitches were used to evaluate the association of P4 concentration with the day of LH peak and the day of ovulation based on P4 thresholds (P4 ≥ 2 ng/mL, and doubling at 4–8 ng/mL in the following 48 h), and with pregnancy length. Linearity was 75–97% and 86–94% for high (37.0 ng/mL) and medium (3.8 ng/mL) pool serum samples, respectively. Recovery was 86.4–119%. Intra-assay CVs were 2.6%, 3.3%, and 5.2% for low (0.23 ng/mL), medium (6.24 ng/mL), and high (38.3 ng/mL) pool concentrations. Inter-assay CVs were 2.22% and 2.53% for P4 concentrations of 2.70 ng/mL and 8.2 ng/mL, respectively. TEo was 8.72% and 22.7% for P4 concentrations of 2 and 8 ng/mL, respectively. The mean pregnancy length from the day of LH peak and ovulation were 64.6 ± 1.7 and 63.3 ± 1.1 d, respectively. The third-generation FEIA kit that we tested was highly reliable. [ABSTRACT FROM AUTHOR]

Adenomyosis is defined as the invasion of the basal endometrium (stroma and glands) into the underlying myometrium. It may lead to abnormal uterine bleeding (AUB), pelvic pain, and infertility. The definitive treatment is hysterectomy. Some conservative measures have been used in patients willing to procreate. Ulipristal acetate is a selective progesterone receptor modulator used to treat AUB caused by leiomyomas. This is a systematic review on the use of ulipristal to treat adenomyosis. Eight eligible articles were retrieved from PubMed, SCOPUS, and Cochrane Library. Only one randomized clinical trial was published until date concerning this matter. It seems that ulipristal acetate induces partial or complete remission of AUB caused by adenomyosis, but the evidence concerning its effect on pelvic pain and the radiologic findings of the disease is conflicting. Nevertheless, given the paucity of data, it is still preliminary to draw any conclusion about the subject. [ABSTRACT FROM AUTHOR]

Introduction: To delineate obstetric complications and neonatal outcomes by maternal age in singleton pregnancies with previous caesarean section (CS).Methods: A retrospective study involved 7715 singleton gestations with previous CS was conducted in a single centre. Statistical methods were used to describe and analyse the incidence of various complications and adverse outcomes classified by maternal ages. After selecting the reference group (30-34 years), multivariate logistic-binomial regression model was used to investigate the outcomes using SPSS.Results: From 2013 to 2017, the proportion of advanced maternal age (AMA, ≥35 years) women with a history of CS increased yearly, especially in the 35-39 years age group. AMA women accounted for 39.4% of all pregnancies and has a high incidence of in vitro fertilization(IVF), progesterone therapy in early pregnancy, pregnancy-induced hypertension (PIH), gestational diabetes mellitus (GDM), placenta previa, premature rupture of membranes (PROM) and postpartum haemorrhage (PPH). Compared to the 30-34 years group, the risks of PIH, GDM, placenta previa, PROM and PPH increased in AMA pregnancies. Very advanced age (≥40 years) may be associated with placenta accreta while young mothers (20-24 years) have a higher prevalence of premature birth. Vaginal bleeding during pregnancy is a risk factor for maternal complications, maternal and neonatal morbidity.Discussion: AMA is associated with increased risk of PIH, GDM, placenta previa, PROM and PPH. Vaginal bleeding may be a predictor during pregnancy. [ABSTRACT FROM AUTHOR]

Based on the idea that women are especially attracted to ancestral markers of male genetic quality when conceptive in their cycle, scholars have conjectured that increases in women's extra-pair sexual interests during the conceptive phase of the cycle are moderated by their primary partners' sexual attractiveness. Multiple studies have examined this prediction, with largely supportive but mixed results. The current study is the first to examine whether hormonal influences—thought to mediate cycle shifts—on women's extra-pair sexual interests are moderated by partner attractiveness. 213 naturally cycling, romantically involved women (181 attending multiple sessions) participated in up to four sessions over about a month. Estrogen and progesterone levels were measured multiple times across women's cycles. Male partner attractiveness moderated associations between progesterone levels (though not estrogen levels) and women's extra-pair sexual interests. A negative association between progesterone levels and extra-pair sexual interests, a composite measure, was observed for women with relatively unattractive partners. For women with relatively attractive partners, no clear association emerged. The interaction between progesterone and partner attractiveness was robust for women's interest in extra-pair sex, a component preregistered as exploratory. The interaction effect was also significant for the absolute intensity of women's extra-pair attraction (a component item referenced in the preregistration) but was non-significant for the frequency of women's extra-pair attraction relative to typical days (a composite component specified in the preregistration). These findings inform theoretical understandings of women's sexuality. [ABSTRACT FROM AUTHOR]

This report describes an intra-abdominal mass caused by progesterone-containing controlled internal drug release (CIDR) devices in the abdominal cavity of a 28-month-old Japanese Black heifer presenting with infertility. Rectal examination revealed a mass containing a cartilagelike object in the pelvic cavity. Computed tomography revealed a mass containing two T-shaped foreign bodies. Laparotomy was performed to remove the mass containing the foreign bodies. The heifer was healthy at discharge seven days post-surgery. This case adds CIDR device as a new etiology for intra-abdominal masses. Furthermore, it highlights the usefulness of CT in diagnosing deep abdominal lesions. [ABSTRACT FROM AUTHOR]

Background: Progesterone has been the standard of practice for the prevention of preterm birth for decades. The drug received expedited Food and Drug Administration approval, prior to the robust demonstration of scientific efficacy. Methods: Prospective research from the American Association of Birth Centers Perinatal Data Registry, 2007-2020. Two-tailed t tests, logistic regression, and propensity score matching were used. Results: Midwifery-led care was underutilized by groups most at risk for preterm birth and was shown to be effective at maintaining low preterm birth rates. The model did not demonstrate reliable access to progesterone. People of color are most at risk of preterm birth, yet were least likely to receiving progesterone treatment. Progesterone was not demonstrated to be effective at decreasing preterm birth when comparing the childbearing people with a history of preterm birth who used the medication and those who did not within this sample. Conclusions: This study adds to the body of research that demonstrates midwifery-led care and low preterm birth rates. The ineffectiveness of progesterone in the prevention of preterm birth among people at risk was demonstrated. [ABSTRACT FROM AUTHOR]

In neonates with more than one clinical abnormalities, we always look for a unifying diagnosis that explains the entire clinical presentation. In rare instances, two conditions can co-exist. Here, we report a neonate born out of consanguineous marriage presenting at 48 hours of life with microcephaly, encephalopathy, hypertonia. He had excessive weight loss, persistent hyperkalaemia, shock and elevated level of 17- hydroxyprogesterone. Steroids were started for adrenal insufficiency. Magnetic resonance imaging (MRI) of the brain revealed T2 hyperintensity of cerebral white matter, hypomyelination and parenchymal volume loss causing microcephaly. Clinical exome sequencing (CES) revealed a pathogenic homozygous missense variation of CYP21A2 gene responsible for congenital adrenal hyperplasia and also the presence of a homozygous missense variant of unknown significance (VUS) of VARS gene implicated in neurodevelopmental disorder with microcephaly, seizures, and cortical atrophy (NDMSCA). Baby was neurologically abnormal at discharge. In the setting of consanguinity, there is a possibility of two genetic conditions. Clinical exome sequencing test is useful in demystifying the diagnosis in complex clinical presentation. [ABSTRACT FROM AUTHOR]