scholarly journals Sex steroid hormones regulate constitutive expression of Cyp2e1 in female mouse liver

2013 ◽  
Vol 304 (10) ◽  
pp. E1118-E1128 ◽  
Author(s):  
Maria Konstandi ◽  
Jie Cheng ◽  
Frank J. Gonzalez
Keyword(s):  
Steroid Hormones ◽  
Constitutive Expression ◽  
Sex Steroid ◽  
Gonadal Hormone ◽  
Sex Steroid Hormone ◽  
Hepatic Expression ◽  
Carcinogenic Agents ◽  
Cyp2e1 Expression ◽  
Highly Correlated

CYP2E1 is of paramount toxicological significance because it metabolically activates a large number of low-molecular-weight toxicants and carcinogens. In this context, factors that interfere with Cyp2e1 regulation may critically affect xenobiotic toxicity and carcinogenicity. The aim of this study was to investigate the role of female steroid hormones in the regulation of CYP2E1, as estrogens and progesterone are the bases of contraceptives and hormonal replacement therapy in menopausal women. Interestingly, a fluctuation in the hepatic expression pattern of Cyp2e1 was revealed in the different phases of the estrous cycle of female mice, with higher Cyp2e1 expression at estrus (E) and lower at methestrus (ME), highly correlated with that in plasma gonadal hormone levels. Depletion of sex steroids by ovariectomy repressed Cyp2e1 expression to levels similar to those detected in males and cyclic females at ME. Hormonal supplementation brought Cyp2e1 expression back to levels detected at E. The role of progesterone appeared to be more prominent than that of 17β-estradiol. Progesterone-induced Cyp2e1 upregulation could be attributed to inactivation of the insulin/PI3K/Akt/FOXO1 signaling pathway. Tamoxifen, an anti-estrogen, repressed Cyp2e1 expression potentially via activation of the PI3K/Akt/FOXO1 and GH/STAT5b-linked pathways. The sex steroid hormone-related changes in hepatic Cyp2e1 expression were highly correlated with those observed in Hnf-1α, β-catenin, and Srebp-1c. In conclusion, female steroid hormones are clearly involved in the regulation of CYP2E1, thus affecting the metabolism of a plethora of toxicants and carcinogenic agents, conditions that may trigger several pathologies or exacerbate the outcomes of various pathophysiological states.

scholarly journals Sex steroid hormones differentially regulate CYP2D in female wild-type and CYP2D6-humanized mice

2020 ◽  
Vol 245 (2) ◽  
pp. 301-314
Author(s):  
Maria Konstandi ◽  
Christina E Andriopoulou ◽  
Jie Cheng ◽  
Frank J Gonzalez
Keyword(s):  
Steroid Hormones ◽  
Estrous Cycle ◽  
Sex Steroid Hormones ◽  
Sex Steroid ◽  
Activity Levels ◽  
Mrna Levels ◽  
Sex Steroid Hormone ◽  
17Β Estradiol ◽  
Highly Correlated ◽  
Species Specific

The CYP2D subfamily catalyses the metabolism of about 25% of prescribed drugs, including the majority of antidepressants and antipsychotics. At present, the mechanism of hepatic CYP2D regulation remains largely unknown. This study investigated the role of sex steroid hormones in CYP2D regulation. For this purpose, Cyp2d22 expression was assessed in the distinct phases of the estrous cycle of normocyclic C57BL/6J (WT) female mice. Cyp2d22 was also evaluated in ovariectomised WT and CYP2D6-humanized (hCYP2D6) mice that received hormonal supplementation with either 17β-estradiol (E2) and/or progesterone. Comparisons were also made to male mice. The data revealed that hepatic Cyp2d22 mRNA, protein and activity levels were higher at estrous compared to the other phases of the estrous cycle and that ovariectomy repressed Cyp2d22 expression in WT mice. Tamoxifen, an anti-estrogenic compound, also repressed hepatic Cyp2d22 via activation of GH/STAT5b and PI3k/AKT signaling pathways. Both hormones prevented the ovariectomy-mediated Cyp2d22 repression. In case of progesterone, this may be mediated by inhibition of the PI3k/AKT/FOX01 pathway. Notably, Cyp2d22 mRNA levels in WT males were similar to those in ovariectomised mice and were markedly lower compared to females at estrous, a differentiation potentially regulated by the GH/STAT5b pathway. Sex steroid hormone-related alterations in Cyp2d22 mRNA expression were highly correlated with Hnf1a mRNA. Interestingly, fluctuations in Cyp2d22 in hippocampus and cerebellum followed those in liver. In contrast to WT mice, ovariectomy induced hepatic CYP2D6 expression in hCYP2D6 mice, whereas E2 and/or progesterone prevented this induction. Apparently, sex steroid hormones display a significant gender- and species-specific role in the regulation of CYP2D.

scholarly journals Onset of Daily Activity in a Female Songbird Is Related to Peak-Induced Estradiol Levels

2019 ◽  
Vol 59 (4) ◽  
pp. 1059-1067 ◽  
Author(s):  
Jessica L Graham ◽  
Katie B Needham ◽  
Emily M Bertucci ◽  
Alexis A Pearson ◽  
Carolyn M Bauer ◽  
...  
Keyword(s):  
Steroid Hormones ◽  
Daily Activity ◽  
Sex Steroid Hormones ◽  
Sex Steroid ◽  
Night Time ◽  
Sex Steroid Hormone ◽  
Reproductive Endocrine ◽  
Activity Onset ◽  
Highly Correlated ◽  
Endocrine Axis

Abstract Research in captive birds and mammals has demonstrated that circadian (i.e., daily) behavioral rhythms are altered in response to increases in sex-steroid hormones. Recently, we and others have demonstrated a high degree of individual repeatability in peak (gonadotropin-releasing hormone [GnRH]-induced sex) steroid levels, and we have found that these GnRH-induced levels are highly correlated with their daily (night-time) endogenous peak. Whether or not individual variation in organization and activity of the reproductive endocrine axis is related to daily timing in wild animals is not well known. To begin to explore these possible links, we tested the hypothesis that maximal levels of the sex steroid hormone estradiol (E2) and onset of daily activity are related in a female songbird, the dark-eyed junco (Junco hyemalis). We found that females with higher levels of GnRH-induced E2 departed from their nest in the morning significantly earlier than females with lower stimulated levels. We did not observe a relationship between testosterone and this measure of onset of activity. Our findings suggest an interaction between an individual’s reproductive endocrine axis and the circadian system and variation observed in an individuals’ daily activity onset. We suggest future studies examine the relationship between maximal sex-steroid hormones and timing of daily activity onset.

scholarly journals A Review on Sex Steroid Hormone Estrogen Receptors in Mammals and Fish

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Eric Amenyogbe ◽  
Gang Chen ◽  
Zhongliang Wang ◽  
Xiaoying Lu ◽  
Mingde Lin ◽  
...  
Keyword(s):  
Estrogen Receptors ◽  
Steroid Hormones ◽  
Steroid Hormone ◽  
Sex Steroid ◽  
Reproductive Hormone ◽  
Binding Affinities ◽  
Sex Steroid Hormone ◽  
Central Nervous Systems ◽  
Males And Females

Steroid hormones play essential roles in the reproductive biology of vertebrates. Estrogen exercises its effect through estrogen receptors and is not only a female reproductive hormone but acts virtually in all vertebrates, including fish, and is involved in the physiological and pathological states in all males and females. Estrogen has been implicated in mandible conservation and circulatory and central nervous systems as well as the reproductive system. This review intended to understand the structure, function, binding affinities, and activations of estrogens and estrogen receptors and to discuss the understanding of the role of sex steroid hormone estrogen receptors in mammals and fish.

scholarly journals Associations between female lung cancer risk and sex steroid hormones: a systematic review and meta-analysis of the worldwide epidemiological evidence on endogenous and exogenous sex steroid hormones

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hui Zeng ◽  
Zhuoyu Yang ◽  
Jiang Li ◽  
Yan Wen ◽  
Zheng Wu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cancer Risk ◽  
Steroid Hormones ◽  
Lung Cancer Risk ◽  
Meta Analysis ◽  
Sex Steroid Hormones ◽  
Sex Steroid ◽  
Sex Steroid Hormone ◽  
Hormone Exposure ◽  
Female Lung Cancer

Abstract Background Published findings suggest sex differences in lung cancer risk and a potential role for sex steroid hormones. Our aim was to perform a meta-analysis to investigate the effects of sex steroid hormone exposure specifically on the risk of lung cancer in women. Methods The PubMed, MEDLINE, Web of Science, and EMBASE databases were searched. The pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) for female lung cancer risk associated with sex steroid hormones were calculated overall and by study design, publication year, population, and smoking status. Sensitivity analysis, publication bias, and subgroup analysis were performed. Results Forty-eight studies published between 1987 and 2019 were included in the study with a total of 31,592 female lung cancer cases and 1,416,320 subjects without lung cancer. Overall, higher levels of sex steroid hormones, both endogenous (OR: 0.92, 95% CI: 0.87–0.98) and exogenous (OR: 0.86, 95% CI: 0.80–0.93), significantly decreased the risk of female lung cancer by 10% (OR: 0.90, 95% CI: 0.86–0.95). The risk of lung cancer decreased more significantly with a higher level of sex steroid hormones in non-smoking women (OR: 0.88, 95% CI: 0.78–0.99) than in smoking women (OR: 0.98, 95% CI: 0.77–1.03), especially in Asia women (OR: 0.84, 95% CI: 0.74–0.96). Conclusions Our meta-analysis reveals an association between higher levels of sex steroid hormone exposure and the decreased risk of female lung cancer. Surveillance of sex steroid hormones might be used for identifying populations at high risk for lung cancer, especially among non-smoking women.

scholarly journals Sexual dimorphism in immune function: The role of sex steroid hormones

2018 ◽  
Vol 51 ◽  
pp. 02007
Author(s):  
Anna Mihailova ◽  
Indrikis Krams
Keyword(s):  
Immune System ◽  
Sexual Dimorphism ◽  
Infectious Diseases ◽  
Immune Function ◽  
Steroid Hormones ◽  
Adaptive Immunity ◽  
Gonadal Hormones ◽  
Sex Steroid ◽  
Innate And Adaptive Immunity

There is evidence of the relation of sex steroid hormones and sexual dimorphism in immune system response to infectious diseases. The aim of this review was to identify the role of sex hormones in immune function and sexual dimorphism of immune reactions. Gonadal hormones together with the immune system play an important role in process of immune responses to the disease [1]. Estrogens, progesterone and testosterone have different impacts on immune cells and different gonadal hormones are of high importance for responses of innate and adaptive immunity [1, 2]. Estrogens mainly enhance immune function while testosterone has a suppressive role. Higher progesterone during pregnancy leads to autoimmune disease remission and an elevated susceptibility toward certain infectious diseases [2, 3, 4]. The intensity and prevalence of viral infections are typically higher in males, whereas disease outcome could be worse for females [5]. Sexual dimorphism of immune function is based on different concentrations of sex hormones in males and females and on a specific mediating role of these hormones in immune function and response along with differences in innate and adaptive immunity.

scholarly journals The role of sex steroid hormones, cytokines and the endocannabinoid system in female fertility

2011 ◽  
Vol 17 (3) ◽  
pp. 347-361 ◽  
Author(s):  
T. Karasu ◽  
T. H. Marczylo ◽  
M. Maccarrone ◽  
J. C. Konje
Keyword(s):  
Steroid Hormones ◽  
Endocannabinoid System ◽  
Sex Steroid Hormones ◽  
Female Fertility ◽  
Sex Steroid

scholarly journals Sex Steroid Hormones as a Balancing Factor in Oral Host Microbiome Interactions

2021 ◽  
Vol 11 ◽  
Author(s):  
Pilar Cornejo Ulloa ◽  
Bastiaan P. Krom ◽  
Monique H. van der Veen
Keyword(s):  
Oral Cavity ◽  
Steroid Hormones ◽  
Sex Steroid Hormones ◽  
Oral Microbiome ◽  
Host Cells ◽  
Sex Steroid ◽  
Hormonal Changes ◽  
Host Microbe Interactions ◽  
Oral Microorganisms

Sex steroid hormones (SSH) are cholesterol-derived molecules. They are secreted into saliva and enter the oral cavity, triggering physiological responses from oral tissues, with possible clinical implications, such as gingival inflammation and bleeding. SSH and hormonal changes affect not only oral host cells but also oral microorganisms.Historically, most research has focused on the effect of hormonal changes on specific bacteria and yeasts. Recently a broader effect of SSH on oral microorganisms was suggested. In order to assess the role of SSH in host-microbe interactions in the oral cavity, this review focuses on how and up to what extent SSH can influence the composition and behavior of the oral microbiome. The available literature was reviewed and a comprehensive hypothesis about the role of SSH in host-microbiome interactions is presented. The limited research available indicates that SSH may influence the balance between the host and its microbes in the oral cavity.

scholarly journals A Systematic Review and Meta-Analysis Examining Whether Changing Ovarian Sex Steroid Hormone Levels Influence Cerebrovascular Function

2021 ◽  
Vol 12 ◽  
Author(s):  
Bethany D. Skinner ◽  
Rebecca J. Davies ◽  
Samuel R. Weaver ◽  
N. Tim Cable ◽  
Samuel J. E. Lucas ◽  
...  
Keyword(s):  
Systematic Review ◽  
Steroid Hormones ◽  
Steroid Hormone ◽  
Meta Analysis ◽  
Oral Contraception ◽  
Sex Steroid ◽  
Sex Steroid Hormone ◽  
Cerebrovascular Function ◽  
Menopausal Women ◽  
Post Menopausal

Sex differences in cerebrovascular disease rates indicate a possible role for ovarian sex steroid hormones in cerebrovascular function. To synthesise and identify knowledge gaps, a systematic review and meta-analysis was conducted to assess how ovarian sex steroid hormone changes across the lifespan affect cerebrovascular function in women. Three databases (EMBASE, MEDLINE and Web of Science) were systematically searched for studies on adult cerebrovascular function and ovarian sex steroid hormones. Forty-five studies met pre-defined inclusion criteria. Studied hormone groups included hormone replacement therapy (HRT; n = 17), pregnancy (n = 12), menstrual cycle (n = 7), menopause (n = 5), oral contraception (n = 2), and ovarian hyperstimulation (n = 2). Outcome measures included pulsatility index (PI), cerebral blood flow/velocity (CBF), resistance index (RI), cerebral autoregulation, and cerebrovascular reactivity. Meta-analysis was carried out on HRT studies. PI significantly decreased [−0.05, 95% CI: (−0.10, −0.01); p = 0.01] in post-menopausal women undergoing HRT compared to post-menopausal women who were not, though there was considerable heterogeneity (I2 = 96.8%). No effects of HRT were seen in CBF (p = 0.24) or RI (p = 0.77). This review indicates that HRT improves PI in post-menopausal women. However, there remains insufficient evidence to determine how changing ovarian sex steroid hormone levels affects cerebrovascular function in women during other hormonal phases (e.g., pregnancy, oral contraception).

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