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Mohammadzadeh M, Montazeri F, Poodineh J, Vatanparast M, Rahmanian Koshkaki E, Ghasemi Esmailabad S, Mohseni F, Talebi AR. Therapeutic potential of testosterone on sperm parameters and chromatin status in fresh and thawed normo and asthenozoospermic samples. Rev Int Androl 2023; 21:100352. [PMID: 37244225 DOI: 10.1016/j.androl.2023.100352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/02/2022] [Accepted: 03/18/2022] [Indexed: 05/29/2023]
Abstract
BACKGROUND Hormonal changes alter the physiological level of ROS and cause oxidative stress in the cell. As estimated, hormonal deficiencies, environmental and ideological factors make up about 25% of male infertility. Pathogenic reactive oxygen species (ROS) is a chief cause of unexplained infertility. Limited studies exist on the effects of testosterone on human sperm culture. Therefore, in the current study, the effect of different doses of testosterone on sperm parameters and chromatin quality was investigated. MATERIALS AND METHODS Semen samples from 15 normospermic and 15 asthenospermic patients were prepared by swim up method, and then were divided into four groups by exposing to different concentrations of testosterone (1, 10, and 100nM) for 45min. Samples without any intervention were considered as control group. All samples were washed twice. Sperm parameters and chromatin protamination were assessed in each group and the remains were frozen. After two weeks, all tests were repeated for sperm thawed. Also, the MSOM technique was used to determine the sperm morphology of class 1. RESULTS Although sperm parameters were not show any significant differences in normospermic and asthenospermic samples exposed to different concentrations of testosterone before and after freezing, chromatin protamination was significantly decreased in the normospermic samples exposed to 10nM of testosterone before freezing (p<0.006), as well as 1 and 10nM of testosterone after freezing compared to control samples (p=0.001 and p=0.0009, respectively). Similarly, chromatin protamination in the asthenospermic samples was significantly decreased at concentration of 1nM of testosterone before and after freezing (p=0.0014 and p=0.0004, respectively), and at concentration of 10nM of testosterone before and after freezing (p=0.0009, p=0.0007) compared to control samples. CONCLUSION Using a low dose of testosterone in the sperm culture medium, has positive effects on chromatin quality.
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Affiliation(s)
- Masoomeh Mohammadzadeh
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, and Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fateme Montazeri
- Abortion Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Jafar Poodineh
- Department of Clinical Biochemistry, School of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Mahboubeh Vatanparast
- Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Elham Rahmanian Koshkaki
- Anatomy and Embryology Department, Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Saeed Ghasemi Esmailabad
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, and Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Mohseni
- Department of Anesthesiology, Nursing School, Gerash University of Medical Sciences, Gerash, Iran
| | - Ali Reza Talebi
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, and Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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The Effect of Clomiphene Citrate and Letrozole in Apoptotic Pathways and Cell Cycle in Human Primary Cumulus Cells and the Protective Effect of Estradiol. Reprod Sci 2022; 29:2272-2281. [PMID: 35513593 DOI: 10.1007/s43032-022-00961-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
Clomiphene citrate (CC) and letrozole are ovulatory stimulants that, despite high ovulation rates, achieve low pregnancy rates. This study aimed to investigate the in vitro effects of CC and letrozole, alone or in combination with estradiol, on apoptosis in human cumulus cells. We performed a controlled prospective study using primary cumulus cell cultures from patients undergoing in vitro fertilization (n=22). Alpha-inhibin immunocytochemistry was used to assess cell culture purity and morphology. Cell viability was evaluated by MTT assay, cell cycle status by flow cytometry, and Caspase-3, Bax and SOD-2, and S26 gene expression by qPCR. Cells were treated for 24 hours in 5 conditioned media: CC, CC + estradiol, letrozole, letrozole + estradiol and control. None of the treatments affected cell viability, but letrozole reduced the mean percentage of cells in the S phase compared to control (24.79 versus 21.70, p=0.0014). Clomiphene treatment increased mRNA expression of Bax (4 fold) and SOD-2 (2 fold), which was reversed by co-treatment with estradiol. SOD-2 expression increased in cells treated with letrozole compared to control (4 fold), which was also reversed by estradiol. These findings suggest that clomiphene citrate and letrozole do not significantly affect the viability of human cumulus cells. Still, the expression of genes involved in apoptosis was modulated by these drugs alone and in association with estradiol, suggesting that CC and letrozole may have direct effects on cumulus cells beyond their known mechanisms of action.
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Mohammadzadeh M, Hamishehkar H, Vatanparast M, Akhavan Sales ZH, Nabi A, Mazaheri F, Mohseni F, Talebi AR. The effect of testosterone and antioxidants nanoliposomes on gene expressions and sperm parameters in asthenospermic individuals. Drug Dev Ind Pharm 2022; 47:1733-1743. [PMID: 35156468 DOI: 10.1080/03639045.2022.2042552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND antioxidants that used for the infertility treatment cannot have their complete effectiveness, because of their instability in the culture medium. SIGNIFICANCE one of the most advances, in the drug delivery systems, is nanoliposomes-loaded, as biodegradable and bioavailable carriers. Hormonal and antioxidant agents encapsulating inside the nanoliposomes were used, to increase the effectiveness of antioxidants in the sperm culture medium. MATERIALS Semen sample from 15 asthenospermia were divided into 10 equal parts. After preparation, the sperms were incubated with free form of drugs and nanocarriers contained resveratrol, catalase, resveratrol-catalase and testosterone for 45 min. All sperm parameters, sperm DNA and gene expressions were evaluated before and after freezing. RESULTS Before freezing, all nanocarriers and free testosterone showed higher sperm motility compared to free drugs (P=.000). Free Testosterone and free resveratrol-catalase had higher DNA damage compared to nanocarriers (P=.000). Before freezing, the blank nanoliposome and testosterone nanoliposomes had the lowest HSP70 gene expression respectively (P = 0.005) (P = 0.001). After freezing, a significant reduction in sperm motility was observed in the free resveratrol-catalase group (P=.003). Also, a significant increase in sperm viability was observed in the free testosterone and nanoliposomes of blank and testosterone (P > 0.05). The least DNA damage was related to catalase nanoliposomes (P=.000). All nanoliposomes, especially catalase, had the highest percentage of class I morphology compared to the control group (P=.000). CONCLUSIONS Nanoliposomes could improve the sperm parameters and DNA integrity before and after freezing, by increasing the effectiveness of antioxidants. So, it can be recommended in the ART lab.
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Affiliation(s)
- Masoomeh Mohammadzadeh
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, and Research committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, I.R, Iran
| | - Mahboubeh Vatanparast
- Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - ZHima Akhavan Sales
- Department of immunology, international campus, shahid sadoughi universirt of medical sciences, yazd, iran
| | - Ali Nabi
- Andrology research center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fahimeh Mazaheri
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Mohseni
- Department of Medical Education, Medical School, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Reza Talebi
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Zhang W, Chen H, Zeng Q, Xu S, Xia W, Li Y. Prenatal and postnatal exposure to vanadium and the immune function of children. J Trace Elem Med Biol 2021; 67:126787. [PMID: 34034030 DOI: 10.1016/j.jtemb.2021.126787] [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: 10/27/2020] [Revised: 04/06/2021] [Accepted: 05/10/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The immunotoxicity induced by vanadium exposure have been reported in some toxicology researches. However, evidence from population-based epidemiological studies was lacking. METHODS This study was conducted to assess the associations between prenatal and postnatal exposure to vanadium and immune function of children. A total of 407 pre-school aged children were followed, whose peripheral blood was collected for T lymphocyte subsets and inflammatory cytokines analysis, as well as vanadium concentration measurement. Maternal urine samples were also collected to measure vanadium concentration. We used generalized linear models to evaluate the associations of maternal and children vanadium concentration with children's immune function. Stratification analysis was further conducted to explore the potential gender-specific effects. RESULTS The geometric means of vanadium concentration in maternal urine and children plasma were 0.85 and 1.12 μg/L, respectively. Maternal urinary vanadium was inversely associated with the percentage of CD3+CD4+ cells [-5.53 % (-10.38 %, -0.41 %)] and absolute counts of CD3+ cells [-2.43 % (-5.05 %, 0.25 %)], and we only observed significant negative associations in males when stratifying by fetal gender. Children plasma vanadium was also associated with reduced absolute counts of CD3+ cells [-5.25 % (-9.57 %, -0.73 %)], but gender-specific effects were not observed. No significant associations of vanadium exposure with cytokines were found. CONCLUSIONS Prenatal and postnatal exposure to vanadium had suppressive impacts on childhood cellular immune. Further studies are needed to confirm our findings.
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Affiliation(s)
- Wenxin Zhang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Huan Chen
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Qiang Zeng
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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Marmitt DJ, Bitencourt S, da Silva GR, Rempel C, Goettert MI. Traditional plants with antioxidant properties in clinical trials-A systematic review. Phytother Res 2021; 35:5647-5667. [PMID: 34165846 DOI: 10.1002/ptr.7202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 05/20/2021] [Accepted: 06/08/2021] [Indexed: 01/08/2023]
Abstract
There is a trend toward the use of natural substances present in plants and vegetables. In general, foods rich in antioxidants are complex matrices; therefore, understanding its absorption effects is extremely relevant to know its bioactive potential. Thus, this systematic review focused on clinical trials involving plants (or compounds) registered on the National List of Medicinal Plants of Interest to the Unified Health System (RENISUS) with antioxidant properties. Following the reporting guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyzes studies of interest indexed in the PubMed and ClinicalTrials.gov databases were analyzed. Of the 59 clinical trials found, Allium sativum and Curcuma longa are the plant species with the highest percentage of clinical research. Prevention/attenuation of oxidative stress was one of the main antioxidant mechanisms indicated in the studies. The most tested compounds of the RENISUS plants in clinical trials were curcumin and soy isoflavone. In this review, we selected studies in advanced stages that highlight plants' value in optimizing antioxidant status; however, even with high-quality studies, it is not prudent to overstate the clinical efficacy of these plants.
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Affiliation(s)
- Diorge Jônatas Marmitt
- Programa de Pós-graduação em Biotecnologia, Universidade do Vale do Taquari (Univates), Lajeado, RS, Brazil
| | - Shanna Bitencourt
- Programa de Pós-graduação em Biotecnologia, Universidade do Vale do Taquari (Univates), Lajeado, RS, Brazil
| | | | - Claudete Rempel
- Programa de Pós-graduação em Ambiente e Desenvolvimento/Programa de Pós-graduação em Sistemas Ambientais Sustentáveis, Universidade do Vale do Taquari (Univates), Lajeado, RS, Brazil
| | - Márcia Inês Goettert
- Programa de Pós-graduação em Biotecnologia, Universidade do Vale do Taquari (Univates), Lajeado, RS, Brazil
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Mancini A, Fuvuzzi AMR, Bruno C, Nicolazzi MA, Vergani E, Ciferri N, Silvestrini A, Meucci E, Nicolotti N, D'Assante R, Cittadini A. Anabolic Hormone Deficiencies in Heart Failure with Reduced or Preserved Ejection Fraction and Correlation with Plasma Total Antioxidant Capacity. Int J Endocrinol 2020; 2020:5798146. [PMID: 32411227 PMCID: PMC7199626 DOI: 10.1155/2020/5798146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/16/2019] [Accepted: 12/03/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND While anabolic hormone deficit is a common finding in heart failure with reduced ejection fraction (HFrEF), few data are available in heart failure with preserved ejection fraction (HFpEF). METHODS Blood samples were collected for metabolic (total cholesterol, HDL cholesterol, LDL cholesterol, creatinine, and glucose) and hormonal (IGF-1, DHEA-S, TSH, fT3, fT4, and T) determination, comparing 30 patients with HFpEF and 20 patients with HFrEF. Total antioxidant capacity was evaluated by using the spectrophotometric method using the latency time in the appearance of the radical species of a chromogen (LAG, sec) as a parameter proportional to antioxidant content of the sample. Echocardiographic parameters were also assessed in the two groups. RESULTS A high prevalence of testosterone (32% in HFrEF and 72% in HFpEF, p < 0.05) and DHEA-S deficiencies was observed in HFpEF patients. Echocardiographic parameters did not correlate with hormone values. A significant direct correlation between T (r 2 = 0.25, p < 0.05) and DHEA-S (r 2 = 0.19, p < 0.05) with LAG was observed only in HFpEF. CONCLUSION Anabolic hormone deficiency is clearly shown in HFpEF, as already known in HFrEF. Although longitudinal studies are required to confirm the prognostic value of this observation, our data suggest different mechanisms in modulating antioxidants in the two conditions, with possible therapeutic implications.
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Affiliation(s)
- Antonio Mancini
- Operative Unit of Endocrinology, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Angela Maria Rita Fuvuzzi
- Operative Unit of Internal Medicine and Vascular Diseases, Division of Internal Medicine and Cardiovascular Diseases, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Carmine Bruno
- Operative Unit of Endocrinology, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria Anna Nicolazzi
- Operative Unit of Internal Medicine and Vascular Diseases, Division of Internal Medicine and Cardiovascular Diseases, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Edoardo Vergani
- Operative Unit of Endocrinology, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Nunzia Ciferri
- Operative Unit of Endocrinology, Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Silvestrini
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Elisabetta Meucci
- Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Nicola Nicolotti
- Medical Management, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Roberta D'Assante
- Department of Translational Medical Sciences, Federico II University of Naples, Naples, Italy
| | - Antonio Cittadini
- Department of Translational Medical Sciences, Federico II University of Naples, Naples, Italy
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Effect of oophorosalpingo-hysterectomy on serum antioxidant enzymes in female dogs. Sci Rep 2019; 9:9674. [PMID: 31273281 PMCID: PMC6609779 DOI: 10.1038/s41598-019-46204-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 06/25/2019] [Indexed: 12/11/2022] Open
Abstract
There are few studies evaluating the oxidant-antioxidant status after oophorosalpingohysterectomy (OSH) in female dogs. Here we determined the effect of OSH on antioxidant enzymes in serum, and quantified morphological changes in subcutaneous adipocytes. Lateral OSH was performed in 12 female dogs. The concentration of 17β-estradiol (17β-E2), the activities of extracellular superoxide dismutase (SOD-ec), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) were determined. Glutathione (GSH), glutathione disulfide (GSSG), lipid peroxidation (LPO), total antioxidant capacity (TAC), carbonylation and vitamin C were measured in serum. Subcutaneous adipose tissue was obtained to determine morphological changes and cell number, under basal conditions and six months after OSH. The SOD-ec, GPx and GST activities increased significantly (p ≤ 0.05), LPO, carbonylation and GSSG also increased. GSH and vitamin C decreased (p = 0.03). 17β-E2 tended to decrease six months after OSH. Hypertrophy of subcutaneous adipocytes was observed after OSH from the first month and was accentuated after six months (p = 0.001). The results suggest that 17β-E2 decreases after OSH and alters the antioxidant enzyme activities in serum thus, redox balance is altered. These changes are associated with an increase in body weight and hypertrophy of subcutaneous adipose tissue.
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Peliciari-Garcia RA, Darley-Usmar V, Young ME. An overview of the emerging interface between cardiac metabolism, redox biology and the circadian clock. Free Radic Biol Med 2018; 119:75-84. [PMID: 29432800 PMCID: PMC6314011 DOI: 10.1016/j.freeradbiomed.2018.02.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 01/17/2023]
Abstract
At various biological levels, mammals must integrate with 24-hr rhythms in their environment. Daily fluctuations in stimuli/stressors of cardiac metabolism and oxidation-reduction (redox) status have been reported over the course of the day. It is therefore not surprising that the heart exhibits dramatic oscillations in various cellular processes over the course of the day, including transcription, translation, ion homeostasis, metabolism, and redox signaling. This temporal partitioning of cardiac processes is governed by a complex interplay between intracellular (e.g., circadian clocks) and extracellular (e.g., neurohumoral factors) influences, thus ensuring appropriate responses to daily stimuli/stresses. The purpose of the current article is to review knowledge regarding control of metabolism and redox biology in the heart over the course of the day, and to highlight whether disruption of these daily rhythms contribute towards cardiac dysfunction observed in various disease states.
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Affiliation(s)
- Rodrigo A Peliciari-Garcia
- Morphophysiology & Pathology Sector, Department of Biological Sciences, Federal University of São Paulo, Diadema, SP, Brazil
| | - Victor Darley-Usmar
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Martin E Young
- Division of Cardiovascular Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Rodriguez-Lara V, Muñiz-Rivera Cambas A, González Villalva A, Fortoul TI. Sex-based differences in lymphocyte proliferation in the spleen after vanadium inhalation. J Immunotoxicol 2016; 13:498-508. [DOI: 10.3109/1547691x.2015.1134731] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Vianey Rodriguez-Lara
- Department of Cellular and Tissue Biology, Faculty of Medicine, Universidad Nacional Autonoma de Mexico, C.U., México City, México
| | - Angelica Muñiz-Rivera Cambas
- Department of Cellular and Tissue Biology, Faculty of Medicine, Universidad Nacional Autonoma de Mexico, C.U., México City, México
| | - Adriana González Villalva
- Department of Cellular and Tissue Biology, Faculty of Medicine, Universidad Nacional Autonoma de Mexico, C.U., México City, México
| | - Teresa I. Fortoul
- Department of Cellular and Tissue Biology, Faculty of Medicine, Universidad Nacional Autonoma de Mexico, C.U., México City, México
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10
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Depressed calcium cycling contributes to lower ischemia tolerance in hearts of estrogen-deficient rats. Menopause 2016; 22:773-82. [PMID: 25513985 DOI: 10.1097/gme.0000000000000377] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Estrogens enhance ischemia tolerance (IT) in the myocardium, the mechanism of which remains unclear. We investigated the effects of long-term estrogen deprivation on the intracellular calcium (Ca(2+)(i)) transient of the heart and its possible influence on IT. METHODS Hearts of ovariectomized (OVX) and sham-operated (control) adult female rats (some receiving estrogen therapy) were studied 10 weeks after surgical operation: control (n = 8), OVX (n = 10), sham-operated estrogen-substituted (n = 7), and ovariectomized estrogen-substituted (n = 9). In vivo heart function was assessed by echocardiography, whereas Ca(2+)(i) transients were recorded, concomitantly with left ventricular pressure and coronary flow, by Indo-1 surface fluorometry in isolated Langendorff-perfused hearts. Isolated hearts were subjected to a 30-minute global ischemia-30-minute reperfusion protocol. Left ventricular expression of myocardial sarcoendoplasmic reticulum Ca(2+)-ATPase (SERCA2a), phospholamban (PLB), and Ser16-phosphorylated PLB was measured. RESULTS Ovariectomy did not influence resting cardiac function in vivo or ex vivo. However, Ca(2+) removal was slower. During ischemia, Ca(2+)(i) elevation and ischemic contracture were more pronounced after ovariectomy. Postischemic restitution of inotropic function (developed pressure; +dP/dt(max)) and lusitropic function (-dP/dt(max)) and Ca(2+)(i) transient recovery (amplitude; ±dCa(2+)(i)/dt(max)) were decreased in OVX hearts. Sarcoendoplasmic reticulum Ca(2+)-ATPase expression was unaltered, whereas PLB and Ser16-phosphorylated PLB levels were higher after ovariectomy. All effects of ovariectomy were restored by estrogen therapy. CONCLUSIONS Ovariectomy impairs myocardial Ca(2+) removal by increasing the expression of the SERCA2a inhibitor PLB. Defective Ca(2+) transport causes ischemic Ca(2+)(i) overload and insufficient postischemic recovery of Ca(2+)(i) transients, which entail depressed hemodynamic restitution. Protection of intact Ca(2+) cycling in the myocardium by estrogens plays a major role in enhancing IT.
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11
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La Vignera S, Condorelli RA, Cimino L, Russo GI, Morgia G, Calogero AE. Late-onset hypogonadism: the advantages of treatment with human chorionic gonadotropin rather than testosterone. Aging Male 2016; 19:34-9. [PMID: 26488941 DOI: 10.3109/13685538.2015.1092021] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The traditional pharmacological treatment of patients with late onset hypogonadism (LOH) is represented by different formulations of testosterone (T) or alternatively by the extractive human chorionic gonadotropin (HCG). The hormone replacement treatment (HRT) is associated with the potential increase of hematocrit, serum concentrations of prostate-specific antigen (PSA) and prostate volume. Moreover, the gynecomastia represent a condition frequently associated with HRT. Recent evidences showed the role of leydig cells in the 25-hydroxylation of vitamin D and the elevated frequency of hypovitaminosis D among LOH patients. Finally, another important aspect of LOH is represented by the frequency of secondary infertility due to age or to traditional HRT. This study evaluated 40 LOH patients treated for 6 months with extractive HCG (n = 10 patients) and three different formulations of T: transdermal (n = 10 patients), undecaonate (n = 10 patients) and enantate (n = 10 patients). Hormonal, anthropometric, metabolic and sperm parameters were evaluated and compared. Moreover, the main safety parameters and the results of the main questionnaires were evaluated. After treatment, HCG group showed serum concentrations of 25-OH-vitamin D significantly higher (p < 0.05) and serum concentrations of oestrogens significantly lower (p < 0.05) compared with other groups. Moreover, they showed a mean value of hematocrit, PSA and prostate volume significantly lower (p < 0.05) compared with other groups. Finally, all the groups treated with T showed a significant reduction (p < 0.05) of sperm density and of percentage of spermatozoa with progressive motility compared with HCG group.
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Affiliation(s)
| | | | - Laura Cimino
- a Department of Clinical and Experimental Medicine and
| | | | - Giuseppe Morgia
- b Department of Urology , University of Catania , Catania , Italy
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Zelena D. The janus face of stress on reproduction: from health to disease. Int J Endocrinol 2015; 2015:458129. [PMID: 25945091 PMCID: PMC4405284 DOI: 10.1155/2015/458129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 12/16/2022] Open
Abstract
Parenthood is a fundamental feature of all known life. However, infertility has been recognized as a public health issue worldwide. But even when the offspring are conceived, in utero problems can lead to immediate (abortion), early (birth), and late (adulthood) consequences. One of the most studied factors is stress. However, stress response is, per se, of adaptive nature allowing the organism to cope with challenges. Stressors lead to deterioration if one is faced with too long lasting, too many, and seemingly unsolvable situations. In stress adaptation the hypothalamus-pituitary-adrenocortical axis and the resulting glucocorticoid elevation are one of the most important mechanisms. At cellular level stress can be defined as an unbalance between production of free radicals and antioxidant defenses. Oxidative stress is widely accepted as an important pathogenic mechanism in different diseases including infertility. On the other hand, the goal of free radical production is to protect the cells from infectious entities. This review aims to summarize the negative and positive influence of stress on reproduction as a process leading to healthy progeny. Special emphasis was given to the balance at the level of the organism and cells.
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Affiliation(s)
- Dóra Zelena
- Hungarian Academy of Sciences, Institute of Experimental Medicine, Szigony 43, Budapest 1083, Hungary
- *Dóra Zelena:
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Miller E, Morel A, Saso L, Saluk J. Isoprostanes and neuroprostanes as biomarkers of oxidative stress in neurodegenerative diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:572491. [PMID: 24868314 PMCID: PMC4020162 DOI: 10.1155/2014/572491] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/28/2014] [Accepted: 03/31/2014] [Indexed: 01/05/2023]
Abstract
Accumulating data shows that oxidative stress plays a crucial role in neurodegenerative disorders. The literature data indicate that in vivo or postmortem cerebrospinal fluid and brain tissue levels of F2-isoprostanes (F2-IsoPs) especially F4-neuroprotanes (F4-NPs) are significantly increased in some neurodegenerative diseases: multiple sclerosis, Alzheimer's disease, Huntington's disease, and Creutzfeldt-Jakob disease. Central nervous system is the most metabolically active organ of the body characterized by high requirement for oxygen and relatively low antioxidative activity, what makes neurons and glia highly susceptible to destruction by reactive oxygen/nitrogen species and neurodegeneration. The discovery of F2-IsoPs and F4-NPs as markers of lipid peroxidation caused by the free radicals has opened up new areas of investigation regarding the role of oxidative stress in the pathogenesis of human neurodegenerative diseases. This review focuses on the relationship between F2-IsoPs and F4-NPs as biomarkers of oxidative stress and neurodegenerative diseases. We summarize the knowledge of these novel biomarkers of oxidative stress and the advantages of monitoring their formation to better define the involvement of oxidative stress in neurological diseases.
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Affiliation(s)
- Elżbieta Miller
- Department of Physical Medicine, Medical University of Lodz, Hallera 1, Lodz, Poland
- Neurorehabilitation Ward, III General Hospital in Lodz, Milionowa 14, Lodz, Poland
| | - Agnieszka Morel
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, Rome, Italy
| | - Joanna Saluk
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
- Department of Toxicology, Faculty of Pharmacy with Division of Medical Analytics, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland
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