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Raparelli V, Nocella C, Proietti M, Romiti GF, Corica B, Bartimoccia S, Stefanini L, Lenzi A, Viceconte N, Tanzilli G, Cammisotto V, Pilote L, Cangemi R, Basili S, Carnevale R. Testosterone-to-estradiol ratio and platelet thromboxane release in ischemic heart disease: the EVA project. J Endocrinol Invest 2022; 45:1367-1377. [PMID: 35262860 PMCID: PMC9184432 DOI: 10.1007/s40618-022-01771-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/16/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Data on the interplay between sexual hormones balance, platelet function and clinical outcomes of adults with ischemic heart disease (IHD) are still lacking. OBJECTIVE To assess the association between the Testosterone (T)-to-Estradiol (E2) Ratio (T/E2) and platelet activation biomarkers in IHD and its predictive value on adverse outcomes. METHODS The EVA study is a prospective observational study of consecutive hospitalized adults with IHD undergoing coronary angiography and/or percutaneous coronary interventions. Serum T/E2 ratios E2, levels of thromboxane B2 (TxB2) and nitrates (NO), were measured at admission and major adverse events, including all-cause mortality, were collected during a long-term follow-up. RESULTS Among 509 adults with IHD (mean age 67 ± 11 years, 30% females), males were older with a more adverse cluster of cardiovascular risk factors than females. Acute coronary syndrome and non-obstructive coronary artery disease were more prevalent in females versus males. The lower sex-specific T/E2 ratios identified adults with the highest level of serum TxB2 and the lowest NO levels. During a median follow-up of 23.7 months, the lower sex-specific T/E2 was associated with higher all-cause mortality (HR 3.49; 95% CI 1.24-9.80; p = 0.018). In in vitro, platelets incubated with T/E2 ratios comparable to those measured in vivo in the lowest quartile showed increased platelet activation as indicated by higher levels of aggregation and TxB2 production. CONCLUSION Among adults with IHD, higher T/E2 ratio was associated with a lower long-term risk of fatal events. The effect of sex hormones on the platelet thromboxane release may partially explain such finding.
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Affiliation(s)
- V Raparelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
- Faculty of Nursing, University of Alberta, Edmonton, AB, Canada.
- Department of Translational Medicine, University of Ferrara, via Luigi Borsari, 46, 44121, Ferrara, Italy.
- University Center for Studies on Gender Medicine, University of Ferrara, Ferrara, Italy.
| | - C Nocella
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - M Proietti
- Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Liverpool, UK
| | - G F Romiti
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - B Corica
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - S Bartimoccia
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - L Stefanini
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - A Lenzi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - N Viceconte
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - G Tanzilli
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - V Cammisotto
- Department of General Surgery and Surgical Speciality Paride Stefanini, Sapienza University of Rome, Rome, Italy
| | - L Pilote
- Centre for Outcomes Research and Evaluation, McGill University Health Centre Research Institute, Montreal, QC, Canada
| | - R Cangemi
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - S Basili
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - R Carnevale
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
- Mediterranea Cardiocentro-Napoli, Naples, Italy
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Platelet Responses in Cardiovascular Disease: Sex-Related Differences in Nutritional and Pharmacological Interventions. Cardiovasc Ther 2020; 2020:2342837. [PMID: 32547635 PMCID: PMC7273457 DOI: 10.1155/2020/2342837] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/09/2020] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular diseases (CVD) represent one of the biggest causes of death globally, and their prevalence, aetiology, and outcome are related to genetic, metabolic, and environmental factors, among which sex- and age-dependent differences may play a key role. Among CVD risk factors, platelet hyperactivity deserves particular mention, as it is involved in the pathophysiology of main cardiovascular events (including stroke, myocardial infarction, and peripheral vascular injury) and is closely related to sex/age differences. Several determinants (e.g., hormonal status and traditional cardiovascular risk factors), together with platelet-related factors (e.g., plasma membrane composition, receptor signaling, and platelet-derived microparticles) can elucidate sex-related disparity in platelet functionality and CVD onset and outcome, especially in relation to efficacy of current primary and secondary interventional strategies. Here, we examined the state of the art concerning sex differences in platelet biology and their relationship with specific cardiovascular events and responses to common antiplatelet therapies. Moreover, as healthy nutrition is widely recognized to play a key role in CVD, we also focused our attention on specific dietary components (especially polyunsaturated fatty acids and flavonoids) and patterns (such as Mediterranean diet), which also emerged to impact platelet functions in a sex-dependent manner. These results highlight that full understanding of gender-related differences will be useful for designing personalized strategies, in order to prevent and/or treat platelet-mediated vascular damage.
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Holmes CE, Huang JC, Pace TR, Howard AB, Muss HB. Tamoxifen and aromatase inhibitors differentially affect vascular endothelial growth factor and endostatin levels in women with breast cancer. Clin Cancer Res 2008; 14:3070-6. [PMID: 18483373 DOI: 10.1158/1078-0432.ccr-07-4640] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Circulating and cellular proangiogenic and antiangiogenic proteins such as vascular endothelial growth factor (VEGF) and endostatin contribute to the local angiogenic balance. We explored the effects of tamoxifen and aromatase inhibitors on concentrations of VEGF and endostatin in plasma, serum, and platelet releasate (induced by platelet activation). EXPERIMENTAL DESIGN VEGF and endostatin concentrations were measured with a quantitative immunoassay before and after 1 to 5 weeks of treatment in 30 women with breast cancer treated with either tamoxifen (n = 14) or aromatase inhibitors (n = 16). Platelet activation was induced by a thrombin receptor agonist. RESULTS Tamoxifen therapy resulted in an increase in platelet releasate concentrations of VEGF (P = 0.01) but no change in plasma VEGF. In contrast, aromatase inhibitor therapy did not affect serum, plasma, or platelet releasate VEGF. In univariate analysis, aspirin use attenuated the tamoxifen-associated increase in VEGF in the platelet releasate and decreased serum levels of VEGF (P = 0.03). Aromatase inhibitor therapy resulted in a decrease in serum endostatin concentrations (P = 0.04), whereas plasma concentrations of endostatin tended to be higher during treatment with aromatase inhibitors (P = 0.06). Tamoxifen therapy resulted in no change in serum or plasma endostatin concentrations. Platelet releasate concentrations of endostatin did not change with either treatment. Interindividual variability was noted among both aromatase inhibitor--and tamoxifen-treated patients. CONCLUSIONS Tamoxifen and aromatase inhibitor therapy affect VEGF and endostatin levels and likely contribute to the angiogenic balance in breast cancer patients. Aspirin decreased the proangiogenic effects of tamoxifen, suggesting that antiplatelet and/or antiangiogenic therapy might improve the effectiveness of tamoxifen in women with breast cancer.
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Affiliation(s)
- Chris E Holmes
- Department of Medicine, University of Vermont, Burlington, Vermont, USA.
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Bray PF, Howard TD, Vittinghoff E, Sane DC, Herrington DM. Effect of genetic variations in platelet glycoproteins Ibalpha and VI on the risk for coronary heart disease events in postmenopausal women taking hormone therapy. Blood 2006; 109:1862-9. [PMID: 17105818 PMCID: PMC1801053 DOI: 10.1182/blood-2006-03-013151] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Millions of women still use postmenopausal hormone therapy (HT). We genotyped 2090 women in Heart and Estrogen/progestin Replacement Study for functional polymorphisms in GP1BA and GP6 and assessed the coronary heart disease (CHD) event rate over 5.8 years of follow-up. In patients receiving placebo, there was an increased CHD death/myocardial infarction (MI)/unstable angina (UA) event rate in carriers of the GP1BA -5C allele (adjusted [adj] P = .006). HT increased the hazard ratio (HR) of CHD events in patients with the GP1BA -5TT genotype by 16% and reduced the HR in patients with the TC+CC genotypes by 46% (adj interaction P < .001). HT reduced the HR in patients with the GP6 13254TT genotype by 17% but increased the HR in patients with the TC+CC genotypes by 35% (adj interaction P < .001). Furthermore, HT increased the HR of CHD events in patients with the GP1BA -5TT plus GP6 13254TC+CC genotypes by 57% and reduced the HR in patients with the GP1BA -5TC+CC plus GP6 13254TT genotypes by 55% (adj interaction P < .001). In postmenopausal women with established CHD, these polymorphisms of platelet genes were predictors of CHD events and significantly modified the effects of HT on CHD risk. It will be important to replicate these findings in other studies.
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Affiliation(s)
- Paul F Bray
- Jefferson Medical College and the Cardeza Foundation for Hematologic Research, Philadelphia, PA 19107, USA.
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Abstract
Cytosolic sulfotransferases (SULTs) are phase II detoxification enzymes that are involved in the biotransformation of a wide variety of structurally diverse endo- and xenobiotics, including many therapeutic agents and endogenous steroids. Single-nucleotide polymorphisms (SNPs) in SULTs have functional consequences on the translated protein. For the most part, these SNPs are fairly uncommon in the population, but some, most notably for SULT isoform 1A1, are commonly found and have been associated with cancer risk for a variety of tumor sites and also with response to therapeutic agents. SNPs in the hydroxysteroid sulfotransferase, SULT2A1, have been identified in African-American subjects and influence the ratio of plasma DHEA:DHEA-S. This modification could potentially influence cancer risk in steroidogenic tissues. SNPs in many SULTs are ethnically distributed, another factor that could influence SULT pharmacogenetics. Finally, genetic variation has also been identified in 3'-phosphoadenoside 5'-phosphosulfate synthetase (PAPPS), the enzymes responsible for producing the obligatory cosubstrate for all sulfotransferases. Taken together, this variability could substantially influence the disposition of drugs metabolized by SULTs. Elucidation of the basis and effect of variability in sulfation could greatly impact individualized therapy in the future.
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Affiliation(s)
- S Nowell
- University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
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Abstract
PURPOSE Preoperative thrombocytosis (platelet count > 400 x 10(9)/L) at initial exploration for epithelial ovarian carcinoma is associated with decreased surgical cytoreducibility and poor survival. Platelets express androgen receptor (AR), which contains a polymorphic CAG trinucleotide repeat sequence of which the length inversely correlates with AR transactivation function. We hypothesized that androgen-mediated thrombocytosis promotes aggressive ovarian cancer biology. EXPERIMENTAL DESIGN Sixty-three patients with epithelial ovarian carcinoma underwent genotype analysis of the CAG repeat polymorphism in AR. Medical records were reviewed to assess preoperative thrombocytosis, surgical findings, and survival. Data were examined using the Fisher's exact, logistic regression, and Kaplan-Meier analyses. RESULTS AR CAG repeat lengths ranged from 8 to 27, with a median of 23. Fifteen of 63 patients (23.8%) showed preoperative thrombocytosis. Short AR allelotype (< or = 20 CAG repeats) was associated with a higher incidence of thrombocytosis (P = 0.04). The combination of short AR allelotype and thrombocytosis was the only significant factor that predicted inability to achieve optimal surgical cytoreduction (P = 0.02). Women with short AR allelotype and thrombocytosis showed statistically decreased progression-free survival (13 versus 37 months, P = 0.01) and overall survival (37 versus 65 months, P = 0.02) when compared with women with long AR allelotype and normal platelet counts. On multivariate analyses, suboptimal cytoreduction was the only significant factor predictive of disease-specific overall survival (P = 0.0002) but the combination of short AR allelotype and thrombocytosis approached statistical significance (P = 0.08). CONCLUSIONS Androgen modulation of thrombocytosis may promote aggressive epithelial ovarian cancer biology.
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Affiliation(s)
- Andrew John Li
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.
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