Physiology In Women Research Articles

Retinal morphology across the menstrual cycle: insights from the UK Biobank

Oestradiol and progesterone levels are higher in menstruating women than men of the same age, and their receptors are present in their neurosensory retina and retinal pigment epithelium. However, the impact of this hormonal environment on retinal physiology in women remains unclear. Using self-reported menstrual cycle phases as a surrogate for fluctuating hormonal levels, we investigated associations with retinovascular indices on colour fundus photograph and retinal thickness in optical coherence tomography across regularly menstruating women in the UK Biobank. We found no differences in retinal thickness across the cycle; however, vessel density, arteriolar and venular, and fractal dimension were higher in the luteal phase than follicular. The calibre of the central retinal vessels did not differ. This study suggests that the menstrual cycle phase might be associated with retinal microvasculature density in non-invasive imaging. It raises awareness for this understudied area, providing insights into neuroscience fields and epidemiological studies.

Sleep is altered during menstruation but not inflammatory parameters: Results from polysomnography of EPISONO database.

Menstruation is an inflammatory process that involves changes in women's physiology leading to mental and physical complaints. Sleep is essential for optimal hormonal release, immune response, and wellbeing, becoming an important factor to be evaluated. We compared sleep, inflammatory mediators, fatigue, anxiety and depression symptoms, and quality of life in menstruating and non-menstruating women. We used the polysomnographic data of 232 women from EPISONO 2007, an epidemiological study from São Paulo city, Brazil. Women were distributed into menstruating (N = 61) and non-menstruating groups (N = 171). We applied questionnaires related to sleep quality, sleepiness, insomnia, fatigue, anxiety and depression symptoms, and quality of life. The serum levels of interleukin 6, tumour necrosis factor-alpha, and C-reactive protein were analysed. For statistical analysis the significance level adopted was p < 0.05. Sleep efficiency was statistically lower in menstruating women (81% ± 13) compared with the non-menstruating group (84.2% ± 13.3, p < 0.023). No statistical differences between the two groups were found in respect to the other parameters analysed. Both groups scored for fatigue symptoms, but no statistical significance was observed between the groups. Our findings indicate that menstruation was associated with lower objective sleep efficiency, suggesting that menstruation may be a physiological factor impairing sleep. Further studies evaluating menstrual variables, and each phase of the menstrual cycle, should be undertaken to detect the main factors associated with sleep complaints, fatigue, and objective parameters of sleep.

Effect of pre-eclampsia on lactogenesis: Breastfeeding and the effect of breastfeeding on women's postpartum blood pressure

Preeclampsia is a serious complication of pregnancy, affecting 3 to 8% of all pregnancies and endangering both the pregnant woman and the fetus. The predominant etiological origin of preeclampsia has been shown to result from abnormal placentation, leading to abnormal remodeling of the spiral arteries and placental ischemia. The placenta plays an important role in pregnancy as it produces a multitude of hormones which are necessary for the maintenance of women's physiology, the development of embryos and also for the promotion of the developed mammary epithelium, so that breastfeeding becomes possible postnatally. Human breast milk is the most valuable nutritional source for infants. Women with preeclampsia more often have problems with lactogenesis II and breastfeeding than women without. It appears that the effect of preeclampsia on breastfeeding is multifactorial in nature and that a strong predictor of breastfeeding outcome is women's intention to breastfeed. Women with hypertensive disorders breastfeed for a shorter period of time and use the formula more easily. Breastfeeding appears to be protectively associated with blood pressure in later life in women, and the shortest duration of breastfeeding associated with benefit is one month. Further investigations are needed to elucidate the mechanism of delayed galactogenesis II in the presence of preeclampsia. Education about the benefits of breastfeeding to prevent hypertension in women is a low-risk intervention and may have a positive impact on cardiovascular outcomes in mothers over time.

A survey about the awareness among the physiotherapists in the use of Matrix Rhythm Therapy in treating chronic low back pain in post-menopausal women

BackgroundMenopause is a stage in a woman's physiology where several chronic illnesses begin to appear, compromising both the quality and quantity of their life. It has been postulated that a decrease in estrogen levels in women may be important for accelerated disc degeneration in postmenopausal women. The overall prevalence of LBP is 52% higher in perimenopausal women with osteoporosis which is considered to be one of the predominant factors for low back pain in women.There are many modalities like Interferential therapy, ultrasound therapy, and transcutaneous electrical nerve stimulation, that treat nonspecific back pain with varying results, some advanced electrotherapy modalities like shockwave, low-level laser therapy, Matrix Rhythm Therapy (MaRhyThe) also proved to be effective in reducing the nonspecific chronic low back pain.Matrix Rhythm Therapy was invented by Dr. Med. Ulrich Randoll (1987–1999) at the University of Erlangen, Germany. Matrix Rhythm Therapy includes a wand with a resonating head that oscillates at the frequency of 8-–12 Hz and is connected to the machine with a connecting cable (U.G Randoll p18 The Principles of Matrix Rhythm Therapy – MaRhyThe 3rd edition 2015).ObjectiveThe main objective of this survey study is to investigate awareness among physiotherapists in the use of Matrix Rhythm Therapy in treating chronic low back pain in post-menopausal women.MethodsFor this study, Google Forms were distributed to physiotherapists of diverse area specializations through social media. The survey was carried out between 16th December 2022 to 18th April 2023.ResultsOut of 103 responses which is 10% of the total sample size, 69.9% of the physiotherapists were aware of Matrix Rhythm Therapy whereas 30.1% were not aware of the same. Meanwhile, when it comes to treating chronic low back pain in post-menopausal women, only 49.5% of the physiotherapists say that the condition can be treated with Matrix Rhythm Therapy, the rest of the 28.2% are not aware and 11.7% are not sure if the condition can be treated with the same.ConclusionIn conclusion, these findings show that implementing or using Matrix Rhythm Therapy as a physical therapy intervention in treating chronic low back pain is woefully inadequate, despite Physical therapists and clinicians recognizing the need for or usage of matrix rhythm therapy, they also must maintain a consistent interest and commitment to effectively employ Matrix Rhythm Therapy for clinical conditions and active research.

Effect of combined Kinesiotaping and resistive exercise on muscle strength and quality of life in breast cancer survivors: a randomized clinical trial

BackgroundBreast cancer (BC) and its treatment affect women's tissue architecture and physiology, which leads to impaired muscle strength and joint dysfunction, affecting quality of life (QOL). Most evidence has focused on exercises; however, due to the complexity and heterogeneity of patients’ rehabilitation needs, further research is required to investigate more adjunctive methods to help optimal rehabilitation according to patients’ needs, preferences, and effective interventions.MethodsThis study aimed to determine the effect of Kinesiotaping (KT) combined with resistive exercise on muscle strength and QOL in breast cancer survivors (BCS). Forty premenopausal BCS treated with chemotherapy postmastectomy participated in this study. Their age ranged from 40 to 55 years, and their body mass index (BMI) was 25–29.9 kg/m2. They were randomly distributed into two equal groups. The control group received resistive exercise two times/week for 12 weeks, while the study group received resistive exercise and KT applied to the lower limbs. Hip, knee, and ankle muscle strength were measured using a hand-held dynamometer, and QOL was evaluated using 36-Item Short Form (SF-36) before and after treatment.ResultsBoth groups showed a significant increase (p = 0.0001) in the strength of hip flexors, knee extensors, flexors, ankle plantar flexors, and dorsiflexors, as well as SF-36 score after treatment. However, the study group showed a more significant increase in strength of hip flexors (p = 0.005), knee extensors (p = 0.01) and flexors (p = 0.02), ankle plantar flexors (p = 0.01), and dorsiflexors (p = 0.01), as well as SF-36 score (p = 0.006) than the control group.ConclusionsKT plus resistive exercise is more effective than exercise alone for improving muscle strength and QOL in BCS. So, the KT can be recommended as a non-invasive, adjunctive method added to the protocol therapy for BCS to help better outcomes during the rehabilitation period.

Assessment of Quality of Life after Hysterectomy using European Quality of Life Five Dimension Scale (EQ5D).

In several regions throughout the globe, caesarean sections constitute the most common nonobstetric surgery, followed by hysterectomy, which is the surgical excision of the uterus. While it is not the only solution for reproductive organ issues, it is the most effective technique to treat many illnesses over the long term. The uterus is a very critical reproductive organ for all age groups as this is not only essential for giving birth but also for hormonal-related physiology in women's life. The quality of life is impacted by a number of hysterectomy-related effects on females. Physical, psychological, environmental, and social relations are some of these impacts. All EuroQol five-dimensions (EQ5D) subscales significantly improved, as per the research 's findings. Preoperative psychosocial status, perioperative pain, indication of hysterectomy, complications occur during surgery, and mode of hysterectomy postoperative infection had been discovered as determinants of quality of life outcome following hysterectomy. In most of the subjects we noticed small, however, noticable improvements in all component of EQ5D Scale. The strengths of EQ5D questionnaire lie in its simplicity and moreover it is available in several languages.

A study on the Fertility Intention of Three Children from the Perspective of Feminism

To explore the influencing factors of women 's three-child fertility desire based on the questionnaire survey of women at different levels in many provinces, and to provide reference for the practice of fertility policy in China. The questionnaire survey was conducted among 500 women of childbearing age in Yunnan, Guangxi, and Guizhou provinces. Logistic regression analysis was performed using SPSS27.0. The results showed that 33.1 % of the subjects were willing to have three children, and 66.9 % of the subjects were unwilling to have three children. The results of logistic regression analysis show that women 's workplace development, changes in family status after childbirth and the impact of childbirth on women 's physiology are the factors that negatively affect women 's willingness to have three children, and women 's workplace development has the greatest impact on their fertility willingness. This study provides theoretical support and policy recommendations for improving women 's willingness to have three children.

Revealing the Connection Between Hemodialysis and Sexual Physiology in Women With End-Stage Renal Disease.

In the recent past, the procedure of hemodialysis has frequently been opted for patients with end-stage renal disease (ESRD) around the globe. In such patients, the concern of sexual dysfunction is highly prevalent, which causes psychological as well as social deterioration in these patients. Wretchedly, this issue has been ignored in developing countries like Pakistan because of social and cultural constraints. Objectives: The aim was to measure and compare Female Sexual Functions of Dialysis (FSFI) scores among three comparative groups: healthy controls, pre-dialysis patients, and hemodialysis patients. A comparative cross-sectional study was carried out with 60 females aged 22-50 years in which 20 were healthy (controls) and 40 were patients with ESRD; of these 40, 20 were taking only oral medicines (pre-dialysis) and 20 were also receiving hemodialysis (hemodialysis). Married women who could read Urdu and were living with live spouses were included, and those with any psychological or psychiatric illness were excluded. Data was collected through a Likert-scaled questionnaire, Urdu translation of the FSFI questionnaire, and scores of each domain were analyzed. Single-tail one-way ANOVA was used to observe the significant difference among the three comparative groups. A strong statistical difference was observed among the hemodialysis, pre-dialysis, and healthy control groups when these three study groups were compared for the mean scores of all related domains of FSFI questtionarie. In each female sexual domain, i.e. Desire, Arousal, Lubrication, Orgasm, Satisfaction, and Pain, the diseased groups (pre-dialysis and hemodialysis) showed lower sexual scores than the healthy group. The lowest scores were observed in the pre-dialysis group (16.4 ± 6.8) and the highest were noticed in the healthy group (29.9 ± 1.8); the hemodialysis group (23.3 ± 5.0) expressed a moderate pattern of scores in each sexual domain. ESRD female patients who were receiving hemodialysis along with routine oral medications showed improved sexual physiology (with better FSFI scores) compared to those who were without hemodialysis.

Biomechanics of Traumatic Head and Neck Injuries on Women: A State-of-the-Art Review and Future Directions.

The biomechanics of traumatic injuries of the human body as a consequence of road crashes, falling, contact sports, and military environments have been studied for decades. In particular, traumatic brain injury (TBI), the so-called "silent epidemic", is the traumatic insult responsible for the greatest percentage of death and disability, justifying the relevance of this research topic. Despite its great importance, only recently have research groups started to seriously consider the sex differences regarding the morphology and physiology of women, which differs from men and may result in a specific outcome for a given traumatic event. This work aims to provide a summary of the contributions given in this field so far, from clinical reports to numerical models, covering not only the direct injuries from inertial loading scenarios but also the role sex plays in the conditions that precede an accident, and post-traumatic events, with an emphasis on neuroendocrine dysfunctions and chronic traumatic encephalopathy. A review on finite element head models and finite element neck models for the study of specific traumatic events is also performed, discussing whether sex was a factor in validating them. Based on the information collected, improvement perspectives and future directions are discussed.

A Sociolinguistic Study of Taboos and Euphemisms Surrounding Pakistani Females' Daily Issues

This research paper is an endeavor to delineate various linguistic taboos about women's physiology with a focus on both the categories and functions of taboos in Pakistani society. The aim is to bring forth myriad euphemistic expressions employed in print media. The paper contests that taboos are moderated at the expanse of society's cultural and religious norms.It also offers a rationale behind the popular use of euphemistic expressions for Pakistani Females' daily issues. Allan and Burridge's (2006) theoretical framework furnished the basic framework for the analysis of different euphemistic expressions. The data for the study comprises thirteen different English newspaper articles published in the last six years (2016-2021). The data analysis revealed that euphemisms could connote multiple shades of meaning ranging from shame, disgust, exasperation, and upliftment. It was established that euphemisms operate along dysphemism and orthophemisminterchangeably depending on the context in which they appeared.

P634. Associations Among Sex Hormone Levels and Cardiovascular Physiology in Women With PTSD

PTSD is twice as prevalent in women compared to men, and sex hormones have been implicated in this disparity. While PTSD is associated with altered cardiovascular physiology, research on sex hormones and cardiovascular physiology is lacking in PTSD populations. We explored relationships between sex hormone levels, psychopathology, and heart rate (HR) and blood pressure (BP) among women with PTSD.

CYP19A1 Promoters Activity in Human Granulosa Cells: A Comparison between PCOS and Normal Subjects.

Objective Estrogen, a female hormone maintaining several critical functions in women's physiology, e.g., folliculogenesis and fertility, is predominantly produced by ovarian granulosa cells where aromatase enzyme converts androgen to estrogen. The principal enzyme responsible for this catalytic reaction is encoded by the CYP19A1 gene, with a long regulatory region. Abnormalities in this process cause metabolic disorders in women, one of the most common of which is polycystic ovary syndrome (PCOS). The main purpose of this research was to determine the effect of the promoters on aromatase expression in cells with normal and PCOS characteristics. Materials and Methods In this experimental study, four promoters of the CYP19A1 gene, including PII, I.3, I.4, and PII/ I .3 promoter fragments, were cloned upstream of the luciferase gene and transfected into normal and PCOS granulosa cells. Subsequently, the effect of follicle-stimulating hormone (FSH) on the activity of these regulatory regions was examined in the presence and absence of FSH. Western blotting was used to confirm aromatase expression in all groups. Data analysis was performed using ANOVA and paired sample t test, compared by post-hoc least significant difference (LSD) test. Results Luciferase results confirmed the intense activity of PII promoter in the presence of FSH. Moreover, the study demonstrated reduced activity of PII promoter in normal granulosa cells, possibly due to the regulatory region of I.3 next to PII. ConclusionFSH stimulates transcription of aromatase enzyme by affecting PII promoter, a process regulated by the inhibitory role of the I.3 region in PII activity in granulosa cells. Given the distinct role of these promoters in normal and PCOS granulosa cells, the importance of nuclear factors residing in these regions can be discerned.

Gender and Habit: John Dewey and Iris Marion Young on Embodiment and Transformation

Gender and Habit: John Dewey and Iris Marion Young on Embodiment and Transformation

The P4 study: Subsequent pregnancy maternal physiology after hypertensive and normotensive pregnancies.

Hypertensive disorders of pregnancy are associated with subsequent increased risk of cardiometabolic disease. Adverse cardiometabolic measures are noted soon after hypertensive versus normotensive pregnancy (NP); to what degree these persist into a subsequent pregnancy (SP) is unknown. This study aimed to assess women's physiology early in SP after hypertensive pregnancy (HP: preeclampsia or gestational hypertension) or NP and compare SP to 6 months postpartum findings from the index pregnancy. Prospective sub-study of the P4 (Postpartum, Physiology, Psychology and Paediatric) observational cohort. Measurements six months after NP versus HP, and the SP at 11-13 weeks gestation. Blood pressure (BP), blood and urine tests (urine ACR, HOMA-IR, LDL cholesterol), body composition, and contribution of maternal characteristics and inter-pregnancy factors to BP and body fat (FM%) in SP. 49 women (34 NP, 15 HP). In the SP, post-HP women had higher BP (112/70 mmHg HP vs 102/64 mmHg NP; p < .001), with no significant drop from six months postpartum to early SP. On regression analysis, systolic and diastolic BP at 6-months were the major predictors for SP systolic (p < 0.001) and diastolic (p = 0.009) BP respectively in the SP. Longer interpregnancy interval and increased FM% 6-months postpartum were associated with higher SP FM% (p < 0.001). BP and body fat six months postpartum were similar early in the SP for HP group, and postpartum BP and FM% were major predictors of their corresponding SP measurements. Postpartum/inter-pregnancy intervention programs to improve these cardiometabolic risk markers might help improve women's long-term health and require investigation.

The Rise of the Female Warfighter: Physiology, Performance, and Future Directions.

Since 1948, the United States military has been open to both men and women as permanent party service members. However, in the majority of the time since, there have been a subset of military occupational specialties (MOS), or job descriptions, open only to men. In particular, jobs requiring more intense physical and/or environmental strain were considered to be beyond the physiological capabilities of women. In the present analysis, we review the literature regarding neuromuscular, physical performance, and environmental physiology in women, to highlight that women have no inherent limitation in their capacity to participate in relevant roles and jobs within the military, within accepted guidelines to promote risk mitigation across sexes. First, we discuss performance and injury risk: both neuromuscular function and physical capabilities. Second, physiological responses to environmental stress. Third, we discuss risk as it relates to reproductive health and nutritional considerations. We conclude with a summary of current physiological, performance, and injury risk data in men and women that support our overarching purpose, as well as suggestions for future directions.

Hormonal Contraception and Violent Death: The Physiological and Psychological Links.

In the past decade, two large prospective cohort studies of British and American women have been conducted which found a statistically significant increase in the risk of violent death in ever-users of hormonal contraceptives. Research on the effects of hormonal contraceptives upon the behaviors of intimate partners and on the physiology of women using hormonal contraceptives has provided insight into the possible basis for the resulting increase in violent death. This review examines the changes that are potential contributors to the reported increase.

Influence of alcohol abuse on the structural and functional condition of the uterine tubes in women of reproductive age

Women's health is always the focus of physicians and society. Some physiological features of women's anatomy and physiology determine their specific response to chronic alcohol intoxication, which is better studied for the ovaries, uterus and mammary glands. The study was conducted to examine the effect of excessive long-term alcohol abuse by women of reproductive age on the structural and functional state of their fallopian tubes. The study was based on sectional material from 25 women with chronic alcohol intoxication, with alcoholic cirrhosis of the liver, but without other existing comorbidities. Possible destructive-sclerotic changes of the fallopian tubes were studied. It was found that in such women the ampullary section of the fallopian tube is significantly shorter by 7.55%. At the same time, there is also a decrease in the outer diameter in the area of the transition of the isthmus to the ampullary department by 17.62% and a narrowing of the lumen area of the ampullary department by 13.14%. Sclerotic-destructive changes were found in the epithelium and in the muscular layer of the fallopian tube. The relative amount of connective tissue in women of the study group was higher than in women in the control group by about 4 times. Immunohistochemical examination of samples of uterine tube section material was also performed, during which signs of stress adjustment of the fallopian tube under the influence of chronic alcohol intoxication and markers of apoptosis, increased p53 protein activity in the study group (this protein acts as a transcription factor and regulates cells). The study concluded that chronic alcoholism can certainly be a factor that causes a number of pronounced, profound, and sometimes irreversible changes in the structure of the fallopian tubes. Keywords: chronic alcoholism, morphofunctional consequences of intoxication, morphometry, immunohistochemistry.

The effect of parity on exercise physiology in women with heart failure with preserved ejection fraction

AimsWomen are overrepresented amongst patients with heart failure with preserved ejection fraction (HFpEF); however, the underpinning mechanism for this asymmetric distribution is unclear. Pregnancy represents a potential gender‐specific risk factor for HFpEF. It leads to significant physiological adaption, and increasing parity has been associated with some cardiovascular risk. We sought to examine the relationship between prior parity with the rest and exercise haemodynamic and echocardiographic profile of women with HFpEF.Methods and resultsPatients referred for assessment of exertional dyspnoea and confirmed to have a haemodynamic and clinical profile consistent with HFpEF were included. Detailed evaluation consisted of rest and exercise right heart catheterization and echocardiography. A socio‐economic and obstetric history was also documented. Fifty‐eight women were assessed and categorized as having either 0–2 births or ≥3 births, dividing the cohort equally. Women with ≥3 births achieved a lower symptom‐limited workload than those with 0–2 births [38 (24–51) vs. 46 (31–68) W, P = 0.04]. Women with ≥3 births had a greater rise in pulmonary capillary wedge pressure indexed to workload with exercise [0.5 (0.3–0.8) vs. 0.3 (0.2–0.5) mmHg/W, P = 0.03], paralleled by a greater rise in right atrial pressure [10 (8–12) vs. 7 (3–11), P = 0.01]. Pulmonary vascular resistance was also higher in women with ≥3 births [1.9 (1.6–2.4) vs. 1.6 (1.4–1.9) mmHg/L/min rest, P = 0.046, and 1.9 (2.4–2.4) vs. 1.4 (1–1.8) mmHg/L/min exercise, P = 0.024]. Left ventricular ejection fraction was lower at rest [60 (57–61) vs. 63 (60–66), P = 0.008] and during exercise [65 (62–67) vs. 68 (66–70), P = 0.038] in women with higher parity.ConclusionsHigher parity is associated with greater impairments in multiple physiologic parameters of HFpEF severity in women, including diastolic reserve, pulmonary vascular resistance, and systolic dysfunction.

130The effect of parity on exercise physiology in women with heart failure with preserved ejection fraction

Abstract Introduction Women are overrepresented amongst patients with HFpEF, however the underpinning mechanism for this asymmetric distribution is unclear. Pregnancy has been demonstrated to contribute to cardiovascular risk, and represents a potential gender specific risk factor for HFpEF. Purpose To investigate the relationship between parity and severity of HFpEF on invasive haemodynamic and echocardiographic studies. Methods Patients referred for investigation of dyspnoea with exercise right heart catheterisation from 2008–19 were included and classified as HFpEF with an ejection fraction (EF) ≥50% and a resting PCWP ≥15mmHg or exercise PCWP ≥25mmHg. All patients underwent detailed haemodynamic and echocardiographic assessment, and an obstetric history including socioeconomic data were obtained using a questionnaire. Results 58 women were included, and categorised as having either 0–2 births, or ≥3 births, dividing the cohort equally. Women with ≥3 births achieved a lower peak exercise workload than those with 0–2 births (46 [31–68] vs. 38 [24–51] W, p=0.04). Women with ≥3 births had a greater rise in pulmonary capillary wedge pressure indexed to workload with exercise (0.5 [0.3–0.8] vs. 0.3 [0.2–0.5] mmHg/W, p=0.03), paralleled by a greater rise in right atrial pressure (10 [8–12] vs. 7 [3–11] mmHg, p=0.01), pictured. Pulmonary vascular resistance was also higher in women with ≥3 births (1.9 [1.6–2.4] vs. 1.6 [1.4–1.9] mmHg/L/min rest, p=0.046, and 1.9 [2.4–2.4] vs. 1.4 [1–1.8] mmHg/L/min exercise, p=0.024). Left ventricular ejection fraction was lower at rest (60 [57–61] vs. 63 [60–66] %, p=0.008) and during exercise (65 [62–67] vs. 68 [66–70] %, p=0.038) in women with higher parity. Otherwise, echocardiographic parameters did not differ according to parity. There were no significant differences between parity groups in baseline characteristics, including age, body mass index, systemic blood pressure, natriuretic peptides or dyspnea class. Similarly, comorbidities and socioeconomic status did not differ. Conclusion(s) Higher parity is associated with impairments in multiple physiologic parameters of HFpEF severity in women, including diastolic reserve, pulmonary vascular resistance, and systolic function. This may indicate a role for pregnancy in the development of HFpEF, and suggests that multiparous women should be targeted for intensification of preventative measures for HFpEF.

Mechanisms underlying the influence of oestrogen on cardiovascular physiology in women.

Women show a lower incidence of cardiovascular diseases than age-matched men, but this benefit disappears after menopause. Oestrogen-mediated vascular actions are mainly attributed to oestradiol and exerted by oestrogen receptors (ERα, ERβ and G protein-coupled oestrogen receptor), through rapid and/or genomic mechanisms, but these effects depend on ageing and inflammation. A cardiovascular approach in women's health has arisen due to controversy regarding oestrogen's beneficial impact as reported in experimental and observational studies and large randomized trials. These can be explained, in part, by two mutually non-exclusive hypotheses. On the one hand, the timing hypothesis, which states that oestrogen-mediated benefits occur before the detrimental effects of ageing are established in the vasculature; on the other hand, ageing and/or hormonal-associated changes in ER expression that could lead to a deleterious imbalance in favour of ERβ over ERα, generally associated with higher inflammation and endothelial dysfunction. In experimental studies, oestradiol acting on ERα promotes the release of vasoactive compounds such as nitric oxide (NO) and prostacyclin, and shifts the angiotensin axis towards angiotensin 1-7 production. Mechanisms underlying oestradiol vascular function also include anti-inflammatory and epigenetic modifications. 17β-Oestradiol changes the transcriptomic profile of endothelial cells, and the involvement of miRNA in the regulatory pathways of vascular function reinforces assumptions regarding the vascular actions of oestrogen. Thus, the present Symposium Review aims to postulate the role of ERα in oestrogen modulation of endothelium-derived mediators and vascular physiology, as well as its relationship with miRNA and inflammation, and elucidate how physiological changes in postmenopausal women counteract the observed effects.