1
|
D'Souza AW, Hissen SL, Manabe K, Washio T, Annis MC, Sanchez B, Fu Q, Shoemaker JK. Effects of biological sex and oral contraception on the sympathetic neurocirculatory adjustments to static handgrip exercise in humans. Am J Physiol Regul Integr Comp Physiol 2023; 325:R629-R644. [PMID: 37694305 DOI: 10.1152/ajpregu.00147.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/14/2023] [Accepted: 09/02/2023] [Indexed: 09/12/2023]
Abstract
While biological sex affects the neurocirculatory adjustments to exercise, the effects of sex hormones on sympathetic action potential (AP) patterns and ensuing vascular transduction remain unknown. We tested the hypothesis that males, and females using oral contraceptive pills (OCPs), would demonstrate larger increases in sympathetic activation and sympathetic vascular transduction compared with naturally menstruating females during static handgrip exercise (SHG) and postexercise circulatory occlusion (PECO). Young males [n = 14, 25 (5) yr], females using OCPs [n = 16, 24 (6) yr], and naturally menstruating females [n = 18, 26 (4) yr] underwent assessments of multiunit muscle sympathetic nerve activity (MSNA)/AP discharge patterns (microneurography) and femoral artery blood flow (ultrasound) during fatiguing SHG at 40% maximum voluntary contraction and 2-min PECO. Sympathetic vascular transduction was determined as the quotient of the change in leg vascular conductance (LVC) and MSNA/AP discharge. Males demonstrated greater increases in APs/burst [males: Δ7 (6) vs. midluteal: Δ2 (3), P = 0.028] and total AP clusters [males: Δ5 (3) vs. midluteal: Δ2 (3), P = 0.008] compared with naturally menstruating females only but not those using OCPs during exercise (APs/burst: P = 0.171, total clusters: P = 0.455). Sympathetic vascular transduction of MSNA burst amplitude, APs/burst, and total AP clusters was greater in males and females using OCPs compared with naturally menstruating females (range: P = 0.004-0.044). In contrast, during PECO no group differences were observed in AP discharge (range: P = 0.510-0.872), and AP discharge was not related to LVC during PECO (range: P = 0.08-0.949). These data indicate that biological sex and OCP use impact the central generation of AP discharge, as well as the transduction of these neuronal messages into peripheral vasoconstriction during static exercise.
Collapse
Affiliation(s)
- Andrew W D'Souza
- Neurovascular Research Laboratory, School of Kinesiology, Western University, London, Ontario, Canada
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Sarah L Hissen
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Kazumasa Manabe
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Takuro Washio
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Meghan C Annis
- Neurovascular Research Laboratory, School of Kinesiology, Western University, London, Ontario, Canada
| | - Belinda Sanchez
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Qi Fu
- Women's Heart Health Laboratory, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas, United States
- Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - J Kevin Shoemaker
- Neurovascular Research Laboratory, School of Kinesiology, Western University, London, Ontario, Canada
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
| |
Collapse
|
2
|
Jurek A, Krzesiński P, Uziębło-Życzkowska B, Witek P, Zieliński G, Kazimierczak A, Wierzbowski R, Banak M, Gielerak G. The patient's sex determines the hemodynamic profile in patients with Cushing disease. Front Endocrinol (Lausanne) 2023; 14:1270455. [PMID: 37886640 PMCID: PMC10598757 DOI: 10.3389/fendo.2023.1270455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/25/2023] [Indexed: 10/28/2023] Open
Abstract
Background Cushing disease (CD) may lead to accelerated cardiovascular remodeling and increased mortality. There are suspected differences in the mechanism of cardiovascular dysfunction between males and females with CD. The purpose of this study was to assess the effect of patient sex on the hemodynamic profile assessed via impedance cardiography and echocardiography in patients newly diagnosed with CD. Material and methods The 54 patients newly diagnosed with CD (mean age 41 years; 77.8% of females) who were included in this prospective clinical study underwent impedance cardiography to assess specific parameters (including systemic vascular resistance index [SVRI], total arterial compliance index [TACI], Heather index [HI], stroke index [SI], cardiac index [CI], velocity index [VI], and acceleration index [ACI]) and transthoracic echocardiography to assess heart chamber diameters and left ventricular systolic and diastolic function. Results Males with CD exhibited higher afterload, with higher SVRI (3,169.3 ± 731.8 vs. 2,339.3 ± 640.8 dyn*s*cm-5*m² in males and females, respectively; p=0.002), lower TACI (0.80 ± 0.30 vs. 1.09 ± 0.30 mL/mmHg*m2; p=0.008), and lower hemodynamic parameters of left ventricular function, with lower HI (9.46 ± 2.86 vs. 14.1 ± 5.06 Ohm/s2; p=0.0007), lower VI (35.1 ± 11.9 vs. 44.9 ± 13.1 1*1000-1*s-1; p=0.009), lower SI (36.5 ± 11.7 vs. 43.6 ± 9.57 mL/m2; p=0.04), lower CI (2.36 ± 0.46 vs. 3.17 ± 0.76 mL*m-2*min-1; p=0.0009), and lower ACI (50.4 ± 19.8 vs. 73.6 ± 25.0 1/100/s2; p=0.006). There were no significant differences between the sexes in left ventricular systolic or diastolic function assessed by echocardiography. Conclusion In comparison with females with CD, males with CD have a less favorable hemodynamic profile, with higher afterload and worse left ventricular function. Sex differences in cardiovascular system function should be taken into consideration in designing personalized diagnostic and therapeutic management of patients with CD.
Collapse
Affiliation(s)
- Agnieszka Jurek
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Paweł Krzesiński
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Beata Uziębło-Życzkowska
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Przemysław Witek
- Department of Internal Medicine, Endocrinology, and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Grzegorz Zieliński
- Department of Neurosurgery, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Anna Kazimierczak
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Robert Wierzbowski
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Małgorzata Banak
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| | - Grzegorz Gielerak
- Department of Cardiology and Internal Medicine, Military Institute of Medicine – National Research Institute, Warsaw, Poland
| |
Collapse
|
3
|
Ma J, Hu J, Wang X, Zhang S, Li Z, Liu J. Improvement of Cardiovascular Function in Aging Females by the Prolonged Activation of G Protein-Coupled Estrogen Receptor. J Cardiovasc Transl Res 2022; 16:371-381. [PMID: 36121620 DOI: 10.1007/s12265-022-10315-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/30/2022] [Indexed: 11/26/2022]
Abstract
Ample evidence suggests that estrogen replacement therapy is associated with beneficial effects with regard to cardiovascular diseases when the therapy is initiated temporally close to menopause but not when it is initiated later. Little is known about the complex interactions between hormone receptors after menopause. Coronary artery function and cardiac function were measured in rats that had either received no treatment or had been pretreated with an androgen receptor (AR) antagonist and/or a GPER agonist G-1. ICI 182,780 was used to block the classical estrogen receptors (ERs) to investigate their complex interactions with GPER. The beneficial effects of GPER were only observed by blocking ARs and classical ERs in aged female rats. The results demonstrate that GPER activation is a potential therapeutic target for the inhibition of age-dependent coronary artery dysfunction and cardiac dysfunction under the condition of blocking ARs and classical ERs after menopause. CLINICAL RELEVANCE: The risk of cardiovascular disease in postmenopausal women significantly increased. The role of sex hormones and their receptors during this process is still complicated. Our present study demonstrated that the imbalance of androgen and estrogen may contribute to the impairment of vascular reactivity and subsequent cardiac function. Treatment with GPER agonist G1 combined with the inhibition of ERα and ERβ could improve vascular function and reduce the myocardial ischemia reperfusion injury. These findings may provide the novel and effective strategy for the treatment of cardiovascular diseases in postmenopausal women.
Collapse
Affiliation(s)
- Jipeng Ma
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jing Hu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Xiaowu Wang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuaishuai Zhang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zilin Li
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
| |
Collapse
|
4
|
Beckers KF, Schulz CJ, Flanagan JP, Adams DM, Gomes VC, Liu C, Childers GW, Sones JL. Sex-specific effects of maternal weight loss on offspring cardiometabolic outcomes in the obese preeclamptic-like mouse model, BPH/5. Physiol Rep 2022; 10:e15444. [PMID: 36065848 PMCID: PMC9446412 DOI: 10.14814/phy2.15444] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 05/28/2023] Open
Abstract
AbstractPreeclampsia (PE) is a hypertensive disorder that impacts 2-8% of pregnant women worldwide. It is characterized by new onset hypertension during the second half of gestation and is a leading cause of maternal and fetal morbidity/mortality. Maternal obesity increases the risk of PE and is a key predictor of childhood obesity and potentially offspring cardiometabolic complications in a sex-dependent manner. The influence of the maternal obesogenic environment, with superimposed PE, on offspring development into adulthood is unknown. Obese BPH/5 mice spontaneously exhibit late-gestational hypertension, fetal demise and growth restriction, and excessive gestational weight gain. BPH/5 females have improved pregnancy outcomes when maternal weight loss via pair-feeding is imposed beginning at conception. We hypothesized that phenotypic differences between female and male BPH/5 offspring can be influenced by pair feeding BPH/5 dams during pregnancy. BPH/5 pair-fed dams have improved litter sizes and increased fetal body weights. BPH/5 offspring born to ad libitum dams have similar sex ratios, body weights, and fecal microbiome as well as increased blood pressure that is reduced in the dam pair-fed offspring. Both BPH/5 male and female offspring born to pair-fed dams have a reduction in adiposity and an altered gut microbiome, while only female offspring born to pair-fed dams have decreased circulating leptin and white adipose tissue inflammatory cytokines. These sexually dimorphic results suggest that reduction in the maternal obesogenic environment in early pregnancy may play a greater role in female BPH/5 sex-dependent cardiometabolic outcomes than males. Reprograming females may mitigate the transgenerational progression of cardiometabolic disease.
Collapse
Affiliation(s)
- Kalie F. Beckers
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Christopher J. Schulz
- Department of Biological SciencesSoutheastern Louisiana UniversityHammondLouisianaUSA
| | - Juliet P. Flanagan
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Daniella M. Adams
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Viviane C.L. Gomes
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Chin‐Chi Liu
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Gary W. Childers
- Department of Biological SciencesSoutheastern Louisiana UniversityHammondLouisianaUSA
| | - Jenny L. Sones
- Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
- Pennington Biomedical Research CenterLouisiana State UniversityBaton RougeLouisianaUSA
| |
Collapse
|
5
|
Costache MF, Arhirii RE, Mogos SJ, Lupascu-Ursulescu C, Litcanu CI, Ciumanghel AI, Cucu C, Ghiciuc CM, Petris AO, Danila N. Giant androgen-producing adrenocortical carcinoma with atrial flutter: A case report and review of the literature. World J Clin Cases 2021; 9:5575-5587. [PMID: 34307612 PMCID: PMC8281402 DOI: 10.12998/wjcc.v9.i20.5575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/24/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Adrenocortical carcinoma (ACC), the second most aggressive malignant tumor, lacks epidemiological data worldwide; therefore, every new case can improve the understanding of the pathology and treatment of this malignancy.
CASE SUMMARY We present the case of a 66-year-old Caucasian woman with a giant androgen-producing ACC (21 cm × 17 cm × 12 cm; 2100 g), without metastases, which unusually presented with an acute onset of atrial flutter and congestive heart failure. The cardiac complications observed in our case support the hypothesis that androgen excess in women is a cardiovascular risk factor. Androgen excess in women can be a rare cause of reversible dilated cardiomyopathy, therefore a comprehensive approach to the patient is essential to improve the recognition of androgen-secreting ACC. The atrial flutter was remitted after initiation of drug treatment during admission. The severe heart failure was totally remitted at 6 mo after radical open surgery to remove the giant ACC.
CONCLUSION Radical open surgery to remove a giant androgen-producing ACC was the first-line treatment to cure the excess of androgen, which determined the total remission of cardiac complications at 6 mo after surgery in the women of this case report.
Collapse
Affiliation(s)
- Mircea-Florin Costache
- Surgery Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | - Raluca-Elena Arhirii
- Cardiology Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | - Simona-Juliette Mogos
- Department of Endocrinology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
- Endocrinology Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | - Corina Lupascu-Ursulescu
- Department of Radiology and Imaging Sciences, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
- Radiology Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | | | - Adi-Ionut Ciumanghel
- Anesthesia and Intensive Care Department, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
- Anesthesia and Intensive Care Department, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | - Catalina Cucu
- Histopatology Department, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
| | - Cristina-Mihaela Ghiciuc
- Department of Pharmacology, Clinical Pharmacology and Algesiology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
| | - Antoniu-Octavian Petris
- Cardiology Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
- Department of Cardiology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
| | - Nicolae Danila
- Surgery Clinic, Saint Spiridon University Clinical Emergency Hospital, Iasi 700111, Romania
- Surgery Clinic, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iasi 700115, Romania
| |
Collapse
|
6
|
Kirlangic OF, Yilmaz-Oral D, Kaya-Sezginer E, Toktanis G, Tezgelen AS, Sen E, Khanam A, Oztekin CV, Gur S. The Effects of Androgens on Cardiometabolic Syndrome: Current Therapeutic Concepts. Sex Med 2020; 8:132-155. [PMID: 32201216 PMCID: PMC7261691 DOI: 10.1016/j.esxm.2020.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 01/31/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Cardiometabolic syndrome (CMS), as a bunch of metabolic disorders mainly characterized by type 2 diabetes mellitus (T2DM), hypertension, atherosclerosis, central adiposity, and abdominal obesity triggering androgen deficiency, is one of the most critical threats to men. Although many significant preclinical and clinical findings explain CMS, new approaches toward common pathophysiological mechanisms and reasonable therapeutic targets are lacking. AIM To gain a further understanding of the role of androgen levels in various facets of CMS such as the constellation of cardiometabolic risk factors including central adiposity, dyslipidemia, insulin resistance, diabetes, and arterial hypertension and to define future directions for development of effective therapeutic modalities. METHODS Clinical and experimental data were searched through scientific literature databases (PubMed) from 2009 to October 2019. MAIN OUTCOME MEASURE Evidence from basic and clinical research was gathered with regard to the causal impact and therapeutic roles of androgens on CMS. RESULTS There are important mechanisms implicated in androgen levels and the risk of CMS. Low testosterone levels have many signs and symptoms on cardiometabolic and glycometabolic risks as well as abdominal obesity in men. CLINICAL IMPLICATIONS The implications of the findings can shed light on future improvements in androgen levels and add potentially predictive risk for CMS, as well as T2DM, abdominal obesity to guide clinical management in the early stage. STRENGTHS & LIMITATIONS This comprehensive review refers to the association between androgens and cardiovascular health. A limitation of this study is the lack of large, prospective population-based studies that analyze the effects of testosterone treatment on CMS or mortality. CONCLUSION Low testosterone levels have several common features with metabolic syndrome. Thus, testosterone may have preventive role in the progress of metabolic syndrome and subsequent T2DM, abdominal obesity, and cardiovascular disease and likely affect aging men's health mainly through endocrine and vascular mechanisms. Further studies are necessary to evaluate the therapeutic interventions directed at preventing CMS in men. Kirlangic OF, Yilmaz-Oral D, Kaya-Sezginer E, et al. The Effects of Androgens on Cardiometabolic Syndrome: Current Therapeutic Concepts. Sex Med 2020;8:132-155.
Collapse
Affiliation(s)
- Omer Faruk Kirlangic
- University of Health Sciences, Gulhane Faculty of Medicine, Department of Medical Biochemistry, Ankara, Turkey
| | - Didem Yilmaz-Oral
- Cukurova University, Faculty of Pharmacy, Department of Pharmacology, Adana, Turkey
| | - Ecem Kaya-Sezginer
- Ankara University, Faculty of Pharmacy, Department of Biochemistry, Ankara, Turkey
| | - Gamze Toktanis
- Ankara University, Faculty of Pharmacy, Department of Pharmacology, Ankara, Turkey
| | | | - Ekrem Sen
- Ankara University, Faculty of Pharmacy, Department of Pharmacology, Ankara, Turkey
| | - Armagan Khanam
- Ankara University, Faculty of Pharmacy, Department of Pharmacology, Ankara, Turkey
| | - Cetin Volkan Oztekin
- Department of Urology, Faculty of Medicine, University of Kyrenia, Girne, Turkish Republic of North Cyprus, Mersin 10, Turkey
| | - Serap Gur
- Ankara University, Faculty of Pharmacy, Department of Pharmacology, Ankara, Turkey.
| |
Collapse
|
7
|
Kim SK, Lee S, Lee MK, Lee S. A systems pharmacology approach to investigate the mechanism of Oryeong-san formula for the treatment of hypertension. JOURNAL OF ETHNOPHARMACOLOGY 2019; 244:112129. [PMID: 31376514 DOI: 10.1016/j.jep.2019.112129] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/10/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Oryeong-san (ORS) is a traditional formula that has long been used for the treatment of dysfunctions of body fluids and electrolyte homeostasis in Korea, China and Japan. Recent reports have shown that ORS may suppress hypertension by controlling the renin-angiotensin-aldosterone system (RAAS) in the kidney, but its action mechanism has not been well defined. AIM OF THE STUDY The aim of this study was to decipher the ORS mechanisms in the treatment of hypertension using a systems pharmacology approach. MATERIALS AND METHODS The compounds of ORS were obtained from the TM-MC (database of medicinal materials and chemical compounds in Northeast Asian traditional medicine), and the drug-likeness (DL) and oral bioavailability (OB) of the compounds were evaluated. The potential targets of the compounds were identified using various pharmacology databases. To analyze the mechanisms of the ORS for hypertension, a Compound-Target-Disease (C-T-D) network was established with respect to the genes related to hypertension. RESULTS A screening evaluation of the DL and OB of the ORS compounds identified a list of 232 active compounds. The pharmacological activity of the targets was investigated by exploring the interaction network between the compounds and the targets. Analysis of the interactions between the compounds and the hypertension-related targets revealed that 14 ORS compounds regulate the RAAS and vasoconstrictors in the kidney. CONCLUSIONS This study used the systems pharmacology approach to decipher the mechanisms of action of ORS for the treatment of hypertension. When hypertension drugs and ORS are used in combination for treatment, possible side effects should be considered because most hypertension drugs are related to the RAAS. The results of this study may provide clues to not only analyze the pharmacological activity of ORS for the treatment of hypertension but other diseases as well.
Collapse
Affiliation(s)
- Sang-Kyun Kim
- Future Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Republic of Korea.
| | - Seungho Lee
- Future Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Republic of Korea.
| | - Myung-Ku Lee
- Future Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Republic of Korea.
| | - Sanghun Lee
- Future Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Republic of Korea.
| |
Collapse
|
8
|
Stanhewicz AE, Wenner MM, Stachenfeld NS. Sex differences in endothelial function important to vascular health and overall cardiovascular disease risk across the lifespan. Am J Physiol Heart Circ Physiol 2018; 315:H1569-H1588. [PMID: 30216121 PMCID: PMC6734083 DOI: 10.1152/ajpheart.00396.2018] [Citation(s) in RCA: 196] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/22/2018] [Accepted: 08/31/2018] [Indexed: 02/07/2023]
Abstract
Diseases of the cardiovascular system are the leading cause of morbidity and mortality in men and women in developed countries, and cardiovascular disease (CVD) is becoming more prevalent in developing countries. The prevalence of atherosclerotic CVD in men is greater than in women until menopause, when the prevalence of CVD increases in women until it exceeds that of men. Endothelial function is a barometer of vascular health and a predictor of atherosclerosis that may provide insights into sex differences in CVD as well as how and why the CVD risk drastically changes with menopause. Studies of sex differences in endothelial function are conflicting, with some studies showing earlier decrements in endothelial function in men compared with women, whereas others show similar age-related declines between the sexes. Because the increase in CVD risk coincides with menopause, it is generally thought that female hormones, estrogens in particular, are cardioprotective. Moreover, it is often proposed that androgens are detrimental. In truth, the relationships are more complex. This review first addresses female and male sex hormones and their receptors and how these interact with the cardiovascular system, particularly the endothelium, in healthy young women and men. Second, we address sex differences in sex steroid receptor-independent mechanisms controlling endothelial function, focusing on vascular endothelin and the renin-angiotensin systems, in healthy young women and men. Finally, we discuss sex differences in age-associated endothelial dysfunction, focusing on the role of attenuated circulating sex hormones in these effects.
Collapse
Affiliation(s)
- Anna E Stanhewicz
- Department of Kinesiology, Pennsylvania State University , University Park, Pennsylvania
| | - Megan M Wenner
- Department of Kinesiology and Applied Physiology, University of Delaware , Newark, Delaware
| | - Nina S Stachenfeld
- The John B. Pierce Laboratory, New Haven, Connecticut
- Department of Obstetrics, Gynecology and Reproductive Sciences and Yale School of Public Health, Yale School of Medicine, New Haven, Connecticut
| |
Collapse
|
9
|
Exercise impedance cardiography reveals impaired hemodynamic responses to exercise in hypertensives with dyspnea. Hypertens Res 2018; 42:211-222. [PMID: 30504821 DOI: 10.1038/s41440-018-0145-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 12/28/2022]
Abstract
Patients with arterial hypertension (AH), especially women, often report exercise intolerance and dyspnea. However, these symptoms are not frequently reflected in standard assessments. The aim of the study was to evaluate the clinical value of impedance cardiography (ICG) in the hemodynamic assessment of patients with AH during exercise, particularly the differences between subgroups based on sex and the presence of dyspnea. Ninety-eight patients with AH (52 women; 54.5 ± 8.2 years of age) were evaluated for levels of N-terminal pro-B-type brain natriuretic peptide (NT-proBNP), exercise capacity (cardiopulmonary exercise testing (CPET) and the 6-min walk test (6MWT)), and exercise ICG. Patients with AH were stratified into the following four subgroups: males without dyspnea (MnD, n = 38); males with dyspnea (MD, n = 8); females without dyspnea (FnD, n = 27); and females with dyspnea (FD, n = 25). In comparison with the MnD subgroup, the FnD subgroup demonstrated significantly higher NT-proBNP levels; lower exercise capacity (shorter 6MWT distance, lower peak oxygen uptake (VO2), lower O2 pulse); higher peak stroke volume index (SVI); and higher SVI at the anaerobic threshold (AT). In comparison with the other subgroups, the FD subgroup walked a shorter distance during the 6MWT distance; had a steeper VE/VCO2 slope; had lower values of peak stroke volume (SV) and peak cardiac output (CO); and had a smaller change in CO from rest to peak. However, no other differences were identified (NT-proBNP, left ventricular diastolic dysfunction, or CPET parameters). Exercise impedance cardiography revealed an impaired hemodynamic response to exercise in hypertensive females with dyspnea. In patients with unexplained exercise intolerance, impedance cardiography may complement traditional exercise tests.
Collapse
|
10
|
Nandrolone alter left ventricular contractility and promotes remodelling involving calcium-handling proteins and renin-angiotensin system in male SHR. Life Sci 2018; 208:239-245. [PMID: 30040952 DOI: 10.1016/j.lfs.2018.07.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 11/24/2022]
Abstract
AIMS Hypertension is a highly prevalent disease that has been correlated to severe organ damage and mortality. However, the role of androgens in hypertension is controversial. The aim of this study was to evaluate the cardiac effects of the nandrolone decanoate (NDL) in male SHR. MAIN METHODS At 12 weeks of age, male SHR rats were separated into three groups: Control (CON), Nandrolone 10 mg/kg twice weekly (NDL), and NDL plus Enalapril 10 mg/kg/day (NDL-E) groups. The animals were treated for 4 weeks. Haemodynamic parameters were acquired through ventricular catheter implantation. The left ventricle was stained with haematoxylin/eosin or picrosirius red. Western blot analysis of TNF-α, ACE, AT1R, β1-AR, PLB, p-PLBser16 and SERCA2a was performed. KEY FINDINGS Nandrolone increased hypertension in SHR rats and enalapril reduced blood pressure to values below those of the control. NDL increased +dP/dtmax, -dP/dtmax and cardiac hypertrophy, which were prevented in the NDL-E group. Cardiac collagen deposition was increased in the NDL group, with this effect being attenuated by enalapril in NDL-E animals. TNF-α, ACE, AT1R and β1-AR proteins were increased in the NDL, and enalapril decreased them, except for TNF-α. The ratio p-PLBser16/PLB revealed an increase after nandrolone, which was prevented in the NDL-E group. The SERCA2a expression protein and SERCA2a/PLB were increased in NDL animals, which did not occur in the NDL-E group. SIGNIFICANCE Nandrolone has distinct effects on cardiac function and remodelling in male SHR, altering the hypertension development process in the heart through modulation of calcium handling proteins and the renin-angiotensin system.
Collapse
|
11
|
Moretti C, Lanzolla G, Moretti M, Gnessi L, Carmina E. Androgens and Hypertension in Men and Women: a Unifying View. Curr Hypertens Rep 2017; 19:44. [PMID: 28455674 DOI: 10.1007/s11906-017-0740-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW This review was designed to revaluate the androgen role on the mechanisms of hypertension and cardiovascular risks in both men and women. Sex steroids are involved in the regulation of blood pressure, but pathophysiological mechanism is not well understood. Androgens have an important effect on metabolism, adipose and endothelial cell function, and cardiovascular risk in both men and women. A focal point in this contest is represented by the possible gender-specific regulation of different tissues and in particular of the adipose cell. Available data confirm that androgen deficiency is linked to increased prevalence of hypertension and cardiovascular diseases. Adipocyte dysfunction seems to be the main involved mechanism. Androgen replacement reduces inflammation state in man, protecting by metabolic syndrome progression. In women, androgen excess has been considered as promoting factor of cardiovascular risk. However, recent data suggest that excessive androgen production has little effect per se in inducing hypertension in young women of reproductive age. Also in postmenopausal women, data on relative androgen excess and hypertension are missing, while adrenal androgen deficiency has been associated to increased mortality. RECENT FINDINGS Molecular mechanisms linking androgen dysregulation to hypertension are almost Unknown, but they seem to be related to increased visceral fat, promoting a chronic inflammatory state through different mechanisms. One of these may involve the recruitment and over-activation of NF-kB, a ubiquitous transcription factor also expressed in adipose cells, where it may cause the production of cytokines and other immune factors. The NF-kB signalling pathway may also influence brown adipogenesis leading to the preferential enlargement of visceral adipocytes. Chronic inflammation and adipocyte dysfunction may alter endothelial function leading to hypertension. Both in men and in women, particularly in the post-menopausal period, hypoandrogenism seems to be a major determinant of the increased prevalence of hypertension. The relationship between androgen signalling and NF-kB might explain the pathophysiological mechanism leading to the development of endothelium dysfunction and hypertension.
Collapse
Affiliation(s)
- Costanzo Moretti
- UOC of Endocrinology and Diabetes, TorVergata University of Rome, Reproductive Endocrinology Section, San Giovanni Calibita Fatebenefratelli Hospital, Rome, Italy
| | - Giulia Lanzolla
- Department Experimental Medicine-Medical Physiopathology, Food Science and Endocrinology Section, "Sapienza" University of Rome, Rome, Italy
| | - Marta Moretti
- Laboratory of Molecular Oncology, Department of Molecular Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Lucio Gnessi
- Department Experimental Medicine-Medical Physiopathology, Food Science and Endocrinology Section, "Sapienza" University of Rome, Rome, Italy
| | - Enrico Carmina
- Department of Health Sciences and Mother and Child Care, University of Palermo, Palermo, Italy.
| |
Collapse
|
12
|
Xie W, Ren M, Li L, Zhu Y, Chu Z, Zhu Z, Ruan Q, Lou W, Zhang H, Han Z, Huang X, Xiang W, Wang T, Yao P. Perinatal testosterone exposure potentiates vascular dysfunction by ERβ suppression in endothelial progenitor cells. PLoS One 2017; 12:e0182945. [PMID: 28809938 PMCID: PMC5557363 DOI: 10.1371/journal.pone.0182945] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/27/2017] [Indexed: 12/04/2022] Open
Abstract
Recent clinical cohort study shows that testosterone therapy increases cardiovascular diseases in men with low testosterone levels, excessive circulating androgen levels may play a detrimental role in the vascular system, while the potential mechanism and effect of testosterone exposure on the vascular function in offspring is still unknown. Our preliminary results showed that perinatal testosterone exposure in mice induces estrogen receptor β (ERβ) suppression in endothelial progenitor cells (EPCs) in offspring but not mothers, while estradiol (E2) had no effect. Further investigation showed that ERβ suppression is due to perinatal testosterone exposure-induced epigenetic changes with altered DNA methylation on the ERβ promoter. During aging, EPCs with ERβ suppression mobilize to the vascular wall, differentiate into ERβ-suppressed mouse endothelial cells (MECs) with downregulated expression of SOD2 (mitochondrial superoxide dismutase) and ERRα (estrogen-related receptor α). This results in reactive oxygen species (ROS) generation and DNA damage, and the dysfunction of mitochondria and fatty acid metabolism, subsequently potentiating vascular dysfunction. Bone marrow transplantation of EPCs that overexpressed with either ERβ or a SIRT1 single mutant SIRT1-C152(D) that could modulate SIRT1 phosphorylation significantly ameliorated vascular dysfunction, while ERβ knockdown worsened the problem. We conclude that perinatal testosterone exposure potentiates vascular dysfunction through ERβ suppression in EPCs.
Collapse
Affiliation(s)
- Weiguo Xie
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
| | - Mingming Ren
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, P.R.China
| | - Ling Li
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, Haikou, P.R.China
| | - Yin Zhu
- Department of Geriatrics, National Key Clinical Specialty, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, P.R.China
| | - Zhigang Chu
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
| | - Zhigang Zhu
- Department of Geriatrics, National Key Clinical Specialty, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, P.R.China
| | - Qiongfang Ruan
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
| | - Wenting Lou
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
| | - Haimou Zhang
- School of Life Sciences, Hubei University, Wuhan, P.R.China
| | - Zhen Han
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, P.R.China
| | - Xiaodong Huang
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
| | - Wei Xiang
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, Haikou, P.R.China
| | - Tao Wang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, P.R.China
| | - Paul Yao
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, P.R.China
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, Haikou, P.R.China
| |
Collapse
|
13
|
Tony Nengom J, Sap Ngo Um S, Chelo D, Mbono Betoko R, Boombhi J, Mouafo Tambo F, Chiabi A, Kingue S, Koki Ndombo P. Assessment of cardiac function in children with congenital adrenal hyperplasia: a case control study in Cameroon. BMC Pediatr 2017; 17:109. [PMID: 28427378 PMCID: PMC5399398 DOI: 10.1186/s12887-017-0862-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 04/06/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND High level of androgens found in congenital adrenal hyperplasia (CAH) seems to have a deleterious effect on heart function. We therefore evaluate cardiac function of children with CAH in comparison with a healthy group. METHODS We carried out a case-control study in the single endocrinology unit of the Mother and Child Center of Chantal Biya's Foundation. Cases were matched for age and genotypic sex to 2 healthy controls. We analyzed the ejection fraction (LVEF), fractional shortening and left ventricular mass; output and cardiac index; E and A waves velocities, E/A ratio and the mitral deceleration time and diameter of the left atrium; tricuspid annular plane systolic excursion and pulmonary artery systolic pressure were also measured. RESULTS We included 19 patients with a median age of 6.26 ± 3.75 years and 38 controls stackable distribution. The left ventricular mass of cases was greater than that of controls. A case of reversible cardiomyopathy on hormone replacement therapy was found. For the cases, the average ejection fraction was 71.95 ± 7.88%; the average fractional shortening was 40.67 ± 7.02%. All these values were higher than those of controls, although the difference was not statistically significant. Diastolic left ventricular function was more impaired among the cases. Right ventricular function was similar in both groups. These abnormalities were highly correlated to the late age at diagnosis and duration of treatment. CONCLUSION This study shows an altered cardiac function in CAH compared to healthy control and highlights importance of an early diagnosis of cases, a tight control of androgens levels and a regular monitoring of cardiac function.
Collapse
Affiliation(s)
- J Tony Nengom
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.
| | - S Sap Ngo Um
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Mother and Child Centre of the Chantal Biya Foundation, Yaounde, Cameroon
| | - D Chelo
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Mother and Child Centre of the Chantal Biya Foundation, Yaounde, Cameroon
| | - R Mbono Betoko
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon
| | - J Boombhi
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Yaounde General Hospital, Yaounde, Cameroon
| | - F Mouafo Tambo
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Yaounde Gyneco Obstetric and Pediatric Hospital, Yaounde, Cameroon
| | - A Chiabi
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Yaounde Gyneco Obstetric and Pediatric Hospital, Yaounde, Cameroon
| | - S Kingue
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Yaounde General Hospital, Yaounde, Cameroon
| | - P Koki Ndombo
- Faculty of Medicine and Biomedical Sciences of Yaounde I University, P.O Box: 14855, Yaounde, Cameroon.,Yaounde General Hospital, Yaounde, Cameroon
| |
Collapse
|
14
|
Hosick PA, Weeks MF, Hankins MW, Moore KH, Stec DE. Sex-Dependent Effects of HO-1 Deletion from Adipocytes in Mice. Int J Mol Sci 2017; 18:ijms18030611. [PMID: 28287466 PMCID: PMC5372627 DOI: 10.3390/ijms18030611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 01/01/2023] Open
Abstract
Induction of heme oxygenase-1 (HO-1) has been demonstrated to decrease body weight and improve insulin sensitivity in several models of obesity in rodents. To further study the role of HO-1 in adipose tissue, we created an adipose-specific HO-1 knockout mouse model. Male and female mice were fed either a control or a high-fat diet for 30 weeks. Body weights were measured weekly and body composition, fasting blood glucose and insulin levels were determined every six weeks. Adipocyte-specific knockout of HO-1 had no significant effect on body weight in mice fed a high-fat diet but increased body weight in female mice fed a normal-fat diet. Although body weights were not different in females fed a high fat diet, loss of HO-1 in adipocytes resulted in significant alterations in body composition. Adipose-specific HO-1 knockout resulted in increased fasting hyperglycemia and insulinemia in female but not male mice on both diets. Adipose-specific knockout of HO-1 resulted in a significant loss of HO activity and a decrease in the protein levels of adiponectin in adipose tissue. These results demonstrate that loss of HO-1 in adipocytes has greater effects on body fat and fasting hyperglycemia in a sex-dependent fashion and that expression of HO-1 in adipose tissue may have a greater protective role in females as compared to males.
Collapse
Affiliation(s)
- Peter A Hosick
- Department of Physiology & Biophysics, Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS 39216, USA.
- Department of Exercise Science and Physical Education, Montclair State University, Montclair, NJ 07043, USA.
| | - Mary Frances Weeks
- Department of Physiology & Biophysics, Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS 39216, USA.
| | - Michael W Hankins
- Department of Physiology & Biophysics, Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS 39216, USA.
| | - Kyle H Moore
- Department of Physiology & Biophysics, Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS 39216, USA.
| | - David E Stec
- Department of Physiology & Biophysics, Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS 39216, USA.
| |
Collapse
|
15
|
Effects of muscle strength and endurance on blood pressure and related cardiometabolic risk factors from childhood to adolescence. J Hypertens 2016; 34:2365-2375. [DOI: 10.1097/hjh.0000000000001116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
16
|
do Carmo JM, da Silva AA, Moak SP, Houghton HJ, Smith A, Hall JE. Regulation of Blood Pressure, Appetite, and Glucose by CNS Melanocortin System in Hyperandrogenemic Female SHR. Am J Hypertens 2016; 29:832-40. [PMID: 26584577 DOI: 10.1093/ajh/hpv182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/20/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Hyperandrogenemia in females may be associated with sympathetic nervous system (SNS) activation and increased blood pressure (BP). However the importance of hyperandrogenemia in causing hypertension in females and the mechanisms involved are still unclear. We tested whether chronic hyperandrogenemia exacerbates hypertension in young female spontaneously hypertensive rats (SHR) and whether endogenous melanocortin-3/4 receptor (MC3/4R) activation contributes to the elevated BP. METHODS Cardiovascular and metabolic effects of chronic MC3/4R antagonism were assessed in female SHR treated with dihydrotestosterone (DHT, beginning at 5 weeks of age) and placebo-treated female SHR. BP and heart rate (HR) were measured by telemetry and an intracerebroventricular (ICV) cannula was placed in the lateral ventricle for infusions. After control measurements, the MC3/4R antagonist (SHU-9119) was infused for 10 days (1 nmol/hour, ICV, at 15 weeks of age) followed by a 5-day recovery period. RESULTS MC3/4R antagonism increased food intake and body weight in DHT-treated SHR (14±1 to 35±1g/day and 244±3 to 298±8g) and controls (14±1 to 34±2g/day and 207±4 to 269±8g). Compared to untreated SHR, DHT-treated SHR had similar BP but lower HR (146±3 vs. 142±4mm Hg and 316±2 vs. 363±4 bpm). Chronic SHU-9119 infusion reduced BP and HR in DHT-treated SHR (-12±2mm Hg and -14±4 bpm) and control female SHR (-19±2mm Hg and -21±6 bpm). CONCLUSION These results indicate that hyperandrogenemia does not exacerbate hypertension in female SHR. MC3/4R antagonism reduces BP and HR despite marked increases in food intake and body weight in hyperandrogenemic and control female SHR.
Collapse
Affiliation(s)
- Jussara M do Carmo
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA;
| | - Alexandre A da Silva
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA; Barão de Mauá University Center, Ribeirão Preto, São Paulo, Brazil
| | - Sydney P Moak
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Haley J Houghton
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Andrew Smith
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA; Department of Radiology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - John E Hall
- Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| |
Collapse
|
17
|
Dasinger JH, Intapad S, Rudsenske BR, Davis GK, Newsome AD, Alexander BT. Chronic Blockade of the Androgen Receptor Abolishes Age-Dependent Increases in Blood Pressure in Female Growth-Restricted Rats. Hypertension 2016; 67:1281-90. [PMID: 27113045 DOI: 10.1161/hypertensionaha.116.07548] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 03/30/2016] [Indexed: 01/10/2023]
Abstract
Intrauterine growth restriction induced via placental insufficiency programs a significant increase in blood pressure at 12 months of age in female growth-restricted rats that is associated with early cessation of estrous cyclicity, indicative of premature reproductive senescence. In addition, female growth-restricted rats at 12 months of age exhibit a significant increase in circulating testosterone with no change in circulating estradiol. Testosterone is positively associated with blood pressure after menopause in women. Thus, we tested the hypothesis that androgen receptor blockade would abolish the significant increase in blood pressure that develops with age in female growth-restricted rats. Mean arterial pressure was measured in animals pretreated with and without the androgen receptor antagonist, flutamide (8 mg/kg/day, SC for 2 weeks). Flutamide abolished the significant increase in blood pressure in growth-restricted rats relative to control at 12 months of age. To examine the mechanism(s) by which androgens contribute to increased blood pressure in growth-restricted rats, blood pressure was assessed in rats untreated or treated with enalapril (250 mg/L for 2 weeks). Enalapril eliminated the increase in blood pressure in growth-restricted relative to vehicle- and flutamide-treated controls. Furthermore, the increase in medullary angiotensin type 1 receptor mRNA expression was abolished in flutamide-treated growth-restricted relative to untreated counterparts and controls; cortical angiotensin-converting enzyme mRNA expression was reduced in flutamide-treated growth-restricted versus untreated counterparts. Thus, these data indicate that androgens, via activation of the renin-angiotensin system, are important mediators of increased blood pressure that develops by 12 months of age in female growth-restricted rats.
Collapse
Affiliation(s)
- John Henry Dasinger
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Suttira Intapad
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Benjamin R Rudsenske
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Gwendolyn K Davis
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Ashley D Newsome
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Barbara T Alexander
- From the Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson.
| |
Collapse
|
18
|
Georgiopoulos GA, Lambrinoudaki I, Athanasouli F, Armeni E, Rizos D, Kazani M, Karamanou M, Manios E, Augoulea A, Stellos K, Papamichael C, Stamatelopoulos K. Free androgen index as a predictor of blood pressure progression and accelerated vascular aging in menopause. Atherosclerosis 2016; 247:177-83. [PMID: 26922717 DOI: 10.1016/j.atherosclerosis.2016.02.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 02/09/2016] [Accepted: 02/17/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND AIMS We aimed to assess the prognostic value of free androgen index (FAI) and its change over time in arterial stiffness progression, endothelial function and hypertension in postmenopausal women. METHODS Postmenopausal women (n = 180) without clinically overt cardiovascular disease or diabetes were consecutively recruited and followed for a median of 29 months. The main outcome measures were changes over time in endothelial function (FMD), reflected waves, localized and systemic (PWV) arterial stiffness and hypertension. RESULTS Increased baseline FAI was significantly associated with new onset hypertension (OR for each SD, 2.71, 95% CI 1.14-6.41, p = 0.024), deterioration of pulse wave velocity (PWV) (0.414 m/s per SD), flow-mediated dilation (FMD) (-0.42% per SD), systolic (2.5 mmHg per SD) and pulse pressure progression (2.3 mmHg per SD, p < 0.05 for all). Baseline FAI remained an independent predictor of changes in PWV (p = 0.006), FMD (p = 0.02), peripheral pulse pressure (p = 0.028), transition to new onset hypertension (p = 0.001) and higher BP category (p = 0.012), after adjustment for age, changes in systolic blood pressure, traditional risk factors, vasoactive medication or total testosterone. Baseline FAI improved reclassification for the risk of transition into higher BP category (NRI = 47.5 ± 20.3%, p = 0.02) and abnormal PWV (NRI = 53.4 ± 23.2%, p = 0.021). Similarly, in a subgroup of patients with measured FAI at follow-up, its changes over time predicted changes in PWV, peripheral pulse pressure and hypertension status (p < 0.05 for all). CONCLUSIONS In apparently healthy postmenopausal women, FAI could be a novel biomarker superior to total testosterone for accelerated vascular aging and hypertension status.
Collapse
Affiliation(s)
- Georgios A Georgiopoulos
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece
| | - Irene Lambrinoudaki
- 2nd Department of Obstetrics and Gynecology, University of Athens, Aretaieio Hospital, Athens, Greece
| | - Fani Athanasouli
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece
| | - Eleni Armeni
- 2nd Department of Obstetrics and Gynecology, University of Athens, Aretaieio Hospital, Athens, Greece
| | - Demetrios Rizos
- 2nd Department of Obstetrics and Gynecology, University of Athens, Aretaieio Hospital, Athens, Greece
| | - Maria Kazani
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece
| | - Marianna Karamanou
- Department of Community Medicine and Health, Lausanne University Hospital (DUMSC/CHUV), Lausanne, Switzerland
| | - Efstathios Manios
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece
| | - Areti Augoulea
- 2nd Department of Obstetrics and Gynecology, University of Athens, Aretaieio Hospital, Athens, Greece
| | - Konstantinos Stellos
- Department of Cardiology, Johann-Wolfgang-Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Christos Papamichael
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece
| | - Kimon Stamatelopoulos
- Vascular Laboratory, Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 80 Vas. Sofias Str, PO Box 11528, Athens, Greece.
| |
Collapse
|
19
|
Sex determines cardiovascular hemodynamics in hypertension. J Hum Hypertens 2015; 29:610-7. [PMID: 25631222 DOI: 10.1038/jhh.2014.134] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/11/2014] [Indexed: 02/05/2023]
Abstract
The aim of this study was to evaluate the influence of sex on cardiovascular hemodynamics and heart remodeling in 144 patients with arterial hypertension that underwent: (1) echocardiography (that is, indices of left ventricular diastolic function: e', E/e'), (2) impedance cardiography (that is, systemic vascular resistance (SVR), total artery compliance (TAC) and Heather index (HI)) and (3) applanation tonometry (augmentation index (AI), central systolic and diastolic blood pressure (CSBP, CDBP), central pulse pressure (CPP)). Women, in comparison with men, revealed to have: (1) stiffer arteries--lower TAC (1.93±0.55 vs 2.16±0.59 ml per mm Hg; P=0.025), higher CSBP (128.7±14.9 vs 123.4±13.2 mm Hg; P=0.036), CPP (39.9±9.5 vs 33.8±9.0 mm Hg; P=0.0002), AI (31.5±8.7 vs 17.5±12.7%; P<0.00001), SVR (1257.6±305.6 vs 1091.2±240.7 dyn × s × cm(-)(5); P=0.002) and (2) higher left ventricular performance--HI (16.3±4.3 vs 11.7±3.2 Ohm × s(2); P<0.00001). In women CSBP, CPP and AI were more clearly associated with left ventricular filling pressure (e') (r=-0.39, r=-0.45, r=-0.44, P<0.01; respectively). These relations were remarkably weaker in men. Hypertensive women characterized with lower large artery compliance, more pronounced augmentation of central blood pressure and more distinctive association of central blood pressure with left ventricular diastolic function. Sex differences in cardiovascular function can impact the individualized management of arterial hypertension.
Collapse
|
20
|
Blesson CS, Chinnathambi V, Hankins GD, Yallampalli C, Sathishkumar K. Prenatal testosterone exposure induces hypertension in adult females via androgen receptor-dependent protein kinase Cδ-mediated mechanism. Hypertension 2014; 65:683-690. [PMID: 25489059 DOI: 10.1161/hypertensionaha.114.04521] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Prenatal exposure to excess testosterone induces hyperandrogenism in adult females and predisposes them to hypertension. We tested whether androgens induce hypertension through transcriptional regulation and signaling of protein kinase C (PKC) in the mesenteric arteries. Pregnant Sprague-Dawley rats were injected with vehicle or testosterone propionate (0.5 mg/kg per day from gestation days 15 to 19, SC) and their 6-month-old adult female offspring were examined. Plasma testosterone levels (0.84±0.04 versus 0.42±0.09 ng/mL) and blood pressures (111.6±1.3 versus 104.5±2.4 mm Hg) were significantly higher in prenatal testosterone-exposed rats compared with controls. This was accompanied with enhanced expression of PKCδ mRNA (1.5-fold) and protein (1.7-fold) in the mesenteric arteries of prenatal testosterone-exposed rats. In addition, mesenteric artery contractile responses to PKC activator, phorbol-12,13-dibutyrate, was significantly greater in prenatal testosterone-exposed rats. Treatment with androgen receptor antagonist flutamide (10 mg/kg, SC, BID for 10 days) significantly attenuated hypertension, PKCδ expression, and the exaggerated vasoconstriction in prenatal testosterone-exposed rats. In vitro exposure of testosterone to cultured mesenteric artery smooth muscle cells dose dependently upregulated PKCδ expression. Analysis of PKCδ gene revealed a putative androgen responsive element in the promoter upstream to the transcription start site and an enhancer element in intron-1. Chromatin immunoprecipitation assays showed that androgen receptors bind to these elements in response to testosterone stimulation. Furthermore, luciferase reporter assays showed that the enhancer element is highly responsive to androgens and treatment with flutamide reverses reporter activity. Our studies identified a novel androgen-mediated mechanism for the control of PKCδ expression via transcriptional regulation that controls vasoconstriction and blood pressure.
Collapse
Affiliation(s)
- Chellakkan S Blesson
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX 77030
| | - Vijayakumar Chinnathambi
- Division of Reproductive Endocrinology Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX 77555
| | - Gary D Hankins
- Division of Reproductive Endocrinology Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX 77555
| | - Chandra Yallampalli
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX 77030
| | - Kunju Sathishkumar
- Division of Reproductive Endocrinology Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX 77555
| |
Collapse
|
21
|
Pollow DP, Uhrlaub J, Romero-Aleshire M, Sandberg K, Nikolich-Zugich J, Brooks HL, Hay M. Sex differences in T-lymphocyte tissue infiltration and development of angiotensin II hypertension. Hypertension 2014; 64:384-390. [PMID: 24890822 DOI: 10.1161/hypertensionaha.114.03581] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
There is extensive evidence that activation of the immune system is both necessary and required for the development of angiotensin II (Ang II)-induced hypertension in males. The purpose of this study was to determine whether sex differences exist in the ability of the adaptive immune system to induce Ang II-dependent hypertension and whether central and renal T-cell infiltration during Ang II-induced hypertension is sex dependent. Recombinant activating gene-1 (Rag-1)(-/-) mice, lacking both T and B cells, were used. Male and female Rag-1(-/-) mice received adoptive transfer of male CD3(+) T cells 3 weeks before 14-day Ang II infusion (490 ng/kg per minute). Blood pressure was monitored via tail cuff. In the absence of T cells, systolic blood pressure responses to Ang II were similar between sexes (Δ22.1 mm Hg males versus Δ18 mm : Hg females). After adoptive transfer of male T cells, Ang II significantly increased systolic blood pressure in males (Δ37.7 mm : Hg; P<0.05) when compared with females (Δ13.7 mm : Hg). Flow cytometric analysis of total T cells and CD4(+), CD8(+), and regulatory Foxp3(+)-CD4(+) T-cell subsets identified that renal lymphocyte infiltration was significantly increased in males versus females in both control and Ang II-infused animals (P<0.05). Immunohistochemical staining for CD3(+)-positive T cells in the subfornical organ region of the brain was increased in males when compared with that in females. These results suggest that female Rag-1(-/-) mice are protected from male T-cell-mediated increases in Ang II-induced hypertension when compared with their male counterparts, and this protection may involve sex differences in the magnitude of T-cell infiltration of the kidney and brain.
Collapse
Affiliation(s)
- Dennis P Pollow
- Department of Physiology University of Arizona, Tucson, AZ.,Sarver Heart Center University of Arizona, Tucson, AZ
| | | | | | - Kathryn Sandberg
- Department of Medicine and Center for the Study of Sex Differences in Health, Aging and Disease, Georgetown University, Washington, DC
| | | | - Heddwen L Brooks
- Department of Physiology University of Arizona, Tucson, AZ.,Sarver Heart Center University of Arizona, Tucson, AZ
| | - Meredith Hay
- Department of Physiology University of Arizona, Tucson, AZ.,Sarver Heart Center University of Arizona, Tucson, AZ.,Evelyn McKnight Brain Institute, University of Arizona, Tucson, AZ
| |
Collapse
|
22
|
Liang H, Wu X, Chen X, Wang Y, Li Y, Pan B, Li M, Liu H. Gender difference in association of NEDD4L gene variants among southern Han Chinese with essential hypertension – a population-based case–control study. Clin Exp Hypertens 2013; 36:309-14. [DOI: 10.3109/10641963.2013.827693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|