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Mujica LKS, dos Santos Amaral C, Valente FS, Miyazato LG, Macari S, da Silva TA, Barrioni BR, Carlos BL, Silva GJA, Shimano AC, Antoniazzi AQ, Premaor MO, Comim FV. Bone strength is reduced in a neonatal androgenized rat model. Bone Rep 2023; 19:101710. [PMID: 37637757 PMCID: PMC10458295 DOI: 10.1016/j.bonr.2023.101710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/29/2023] [Accepted: 08/17/2023] [Indexed: 08/29/2023] Open
Abstract
Background Whether polycystic ovary syndrome (PCOS) affects bone health during a woman's lifespan remains controversial. An androgenized rodent model replicated many metabolic and reproductive features of women with PCOS, and we aimed to use it to investigate the impact of androgens on microarchitecture (by micro-CT), bone mechanical strength, bone formation and resorption markers in rats with intact ovaries (SHAM) who underwent oophorectomy. Methods Wistar rats (Rattus norvegicus albinus) were employed for the experiments in this study. The protocol of androgenization consisted of the application of 1.25 mg s.c. testosterone propionate beteween days 2-5 of life, while the controls received the same amount of corn oil s.c. as previously established. Androgenized SHAM rats exhibited chronic anovulation identified by vaginal cytology and a reduction in the proportion of corpus luteum in the ovary in comparison to control SHAM rats. The realization of the ovariectomy or SHAM procedure occurred on Day 100 of life. All groups (n = 8) were followed-up for 180 days to address the study endpoints. Results Micro-CT from androgenized female rats (SHAM) showed a divergence between the trabecular and cortical bone profiles. Compared to SHAM controls, these rats had an increase in trabecular bone mass with a diminution in bone resorption C-terminal telopeptide of type 1 collagen (CTX) (p < 0.05), a concomitant decrease in cortical area and thickness in the femur, and a reduction in the strength of the femur on the mechanical test (p < 0.01). Conclusions Our results suggest that a reduction in the cortical thickness and cortical area observed in PCOS model rats was associated with a reduced strength of the femur, despite increased trabecular formation. Ovariectomy in the androgenized OVX group limited the progression rate of cortical bone loss, resulting in bone resistance and cortical thickness comparable to those observed in the control OVX group.
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Affiliation(s)
| | - Carolina dos Santos Amaral
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | | | - Ligia Gomes Miyazato
- Animal Care Facility, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Soraia Macari
- Department of Oral Pathology and Surgery, Faculty of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Tarcília Aparecida da Silva
- Department of Oral Pathology and Surgery, Faculty of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Breno Rocha Barrioni
- Department of Metallurgical and Materials Engineering, Faculty of Engineering, Federal University of Minas Gerais, Belo Horizonte (UFMG), Minas Gerais, Brazil
| | - Bruna Leonel Carlos
- Department of Biomechanics, Medicine and Locomotor Apparatus Rehabilitation, Faculty of Medicine, University of Sao Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Guilherme Jafroni Alves Silva
- Department of Biomechanics, Medicine and Locomotor Apparatus Rehabilitation, Faculty of Medicine, University of Sao Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Antônio Carlos Shimano
- Department of Biomechanics, Medicine and Locomotor Apparatus Rehabilitation, Faculty of Medicine, University of Sao Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Alfredo Quites Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Melissa Orlandin Premaor
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Fabio Vasconcellos Comim
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
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Amaral CDS, Correa GRE, Serrano Mujica LK, Fiorenza MF, Rosa SG, Nogueira CW, Portela VM, Comim FV, Schoenau W, Smirnova NP, Antoniazzi AQ. Heat stress modulates polymorphonuclear cell response in early pregnancy cows: I. interferon pathway and oxidative stress. PLoS One 2021; 16:e0257418. [PMID: 34543299 PMCID: PMC8452032 DOI: 10.1371/journal.pone.0257418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/31/2021] [Indexed: 11/21/2022] Open
Abstract
One of the major causes of early pregnancy loss is heat stress. In ruminants, interferon tau (IFNT) is the embryo signal to the mother. Once the interferon signaling pathway is activated, it drives gene expression for interferon-stimulated genes (ISGs) and alters neutrophils responses. The aim of the present study was to evaluate interferon (IFN) pathway, ISGs and gene expression in polymorphonuclear leukocytes (PMN) and oxidative stress in dairy cows under heat stress. Pregnant cows had their estrous cycle synchronized and randomly assigned to a comfort or heat stress group. Blood samples were collected at artificial insemination (AI) and on Days 10, 14 and 18 following AI. Pregnant cows were pregnancy checked by ultrasound on Day 30 and confirmed on Day 60 post-AI. Results are presented as mean ± SEM. The corpus luteum (CL) diameter was not different between groups of pregnant cows; concentration of progesterone of pregnant cows on Day 18 following AI was greater in comfort group compared to heat stressed group. Comfort pregnant cows had higher expression of all analyzed genes from interferon pathway, except for IFNAR1, on both Days 14 and 18. Conversely, heat stressed cows did not show altered expression of IFNT pathway genes and ISGs between Days 10, 14, and 18 after AI. The oxidative stress, determined as malondialdehyde (MDA) levels, was greater in heat stress group on Days 10, 14 and 18, independent of pregnancy status. Heat stress negatively influences expression of ISGs, IFN pathway gene expression in neutrophils, and oxidative stress. Our data suggest that lower conception rates in cows under heat stress are multifactorial, with the association of interferon pathway activation and the unbalanced oxidative stress being main contributing factors.
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Affiliation(s)
- Carolina dos Santos Amaral
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | | | - Mariani Farias Fiorenza
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Suzan Gonçalves Rosa
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Cristina Wayne Nogueira
- Synthesis, Reactivity and Organocalcogens Pharmacological and Toxicological Assessment Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Valério Marques Portela
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Fábio Vasconcellos Comim
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - William Schoenau
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | - Alfredo Quites Antoniazzi
- Biotechnology and Animal Reproduction Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
- * E-mail:
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Comim FV, Mujica LKS, Valente F, Miyazato LG, Manta MW, Amaral CD, Premaor MO, Macari S, Silva T, Barrioni BR, Carlos BL, Silva GJA, Shimano AC, Antoniazzi AQ. Abnormalities in Microarchitecture and Reduced Mechanical Bone Strength in a Rat Model of Polycystic Ovary Syndrome. J Endocr Soc 2021. [PMCID: PMC8266159 DOI: 10.1210/jendso/bvab048.1552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Evidence from the literature is contentious about the impact of polycystic ovary syndrome (PCOS) on the skeleton, suggesting a possible negative role of this condition on non-obese women. We investigated this hypothesis employing a well-characterized testosterone propionate (TP) rodent model of PCOS to address the consequences of androgenization on bone microarchitecture, histology, and mechanical strength. For this study, Wistar rats (n= 38) were divided in 4 groups: 1) “Control OVX” (single dose of corn oil s.c. at day 5 of life and ovariectomy at day 100, n=9); 2) “Control SHAM” (n=9); 3) “Androgenized OVX”(single dose of TP 1.25 mg s.c. at day 5 of life and ovariectomy at day 100, n=10); and 4) “Androgenized SHAM” (n=10). Full characterization of estrous cycles and weight was performed during growth, and all animals were euthanized at day 180. Successful ovariectomy was confirmed by neglected levels of serum estradiol. Endpoints evaluated include bone micro CT (femur and spinal column), bone histology (number of osteoclasts and osteoblasts in the femur), and mechanical tests. The study was approved by the local Ethics Committee. At the end of the study (day 180), Androgenized OVX rats were heavier than the other three groups. MicroCT Analysis: Androgenized SHAM rats exhibited a significantly higher trabecular mass in the spine (BV/BT) (mean + SEM) 49.21 + 2.42 % versus Control SHAM 36.42 + 1.39 % (Student T-test p=0.001). Following ovariectomy, BV/BT in Androgenized OVX was 40.4 + 2.83 % against 20.34 + 1.85 % in Control OVX (Student T-test p=0.0003). Lumbar trabecular thickness(μm) was also higher in Androgenized OVX (p=0.0065) as well the Trabecular number (n/mm)(p=0.0003). A similar increase in trabecular mass was observed in the femur. Androgenized SHAM rats had a significant higher BV/BT (%), trabecular thickness(μm), and decreased trabecular separation (p < 0.001). However, a significant reduction in cortical bone (thickness) was noted (Student T-test p=0.001). A histological study of the distal femur of Androgenized SHAM rats also show a significantly increased number of osteoclasts and decreased number of osteoblasts than Control SHAM (0< 001). When submitted to the mechanical test, Androgenized Sham rats presented a decreased strength (p<0.01) in relation to its controls. After ovariectomy, there was a reduction in bone in all oophorectomized groups. However, differently than the vertebral bones, no differences regarding bone mechanical strength or stiffness as well microCT values, or bone histology parameters were noted in the femur of Control OVX or Androgenized OVX. Our results suggest that androgenization in a rodent model of PCOS leads, at the same time, to a generalized increase in trabecular (cancellous) bone mass (especially in the spine), associated with a reduced cortical bone mass and decreased strength of the femur.
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Serrano Mujica LK, Stein CS, Miyazato LG, Valente F, Premaor MO, Antoniazzi AQ, Moresco RN, Comim FV. Ovariectomy Improves Metabolic and Oxidative Stress Marker Disruption in Androgenized Rats: Possible Approach to Postmenopausal Polycystic Ovary Syndrome. Metab Syndr Relat Disord 2021; 19:312-316. [PMID: 33650886 DOI: 10.1089/met.2020.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Background: This study aims to evaluate metabolic and oxidative stress markers in a postmenopausal rat model of polycystic ovary syndrome (PCOS). Methods: Wistar rats were divided in four groups: control ovariectomized (OVX; n = 9), control SHAM (n = 9), androgenized OVX (n = 10), and androgenized SHAM (n = 10). Female rats were androgenized during the neonatal period and compared with controls. Surgery (ovariectomy or SHAM procedure) was performed at day 100 and euthanasia at day 180 of life. Bodyweight, lipids, glucose, triglyceride glucose (TyG) index, and oxidative stress markers (total oxidant status [TOS], total antioxidant capacity, nitric oxide, ferric-reducing ability of plasma [FRAP], and advanced oxidation protein product) were addressed. Results: Androgenized SHAM rats exhibited a higher total, low-density lipoprotein cholesterol, triglycerides, TyG index (an insulin resistance marker), and increased TOS, FRAP, and albumin in comparison with control SHAM rats. These abnormalities disappeared after ovariectomy despite the fact that ovariectomized androgenized rats became heavier than the other three groups. Conclusion: Ovariectomy improved metabolic and oxidative stress markers in a rat model of PCOS.
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Affiliation(s)
- Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Carolina S Stein
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Ligia Gomes Miyazato
- Animal Care Facility, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Fernanda Valente
- Animal Care Facility, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | | | - Alfredo Quites Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Rafael Noal Moresco
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Fabio Vasconcellos Comim
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil.,Department of Clinical Medicine, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
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Mujica LKS, Glanzner WG, Prante AL, Rissi VB, Correa GRE, Premaor MO, Antoniazzi AQ, Gonçalves PBD, Comim FV. Trabecular Bone is Increased in a Rat Model of Polycystic Ovary Syndrome. Exp Clin Endocrinol Diabetes 2020; 129:757-761. [PMID: 33113570 DOI: 10.1055/a-1284-5491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Polycystic ovary syndrome (PCOS) in an intricate disorder characterized by reproductive and metabolic abnormalities that may affect bone quality and strength along with the lifespan. The present study analysed the impact of postnatal androgenization (of a single dose of testosterone propionate 1.25 mg subcutaneously at day 5 of life) on bone development and markers of bone metabolism in adult female Wistar rats. Compared with healthy controls, the results of measurements of micro-computed tomography (microCT) of the distal femur of androgenized rats indicated an increased cortical bone volume voxel bone volume to total volume (VOX BV/TV) and higher trabecular number (Tb.n) with reduced trabecular separation (Tb.sp). A large magnitude effect size was observed in the levels of circulating bone formation Procollagen I N-terminal propeptide (P1NP) at day 60 of life; reabsorption cross-linked C-telopeptide of type I collagen (CTX) markers were similar between the androgenized and control rats at days 60 and 110 of life. The analysis of gene expression in bone indicated elements for an increased bone mass such as the reduction of the Dickkopf-1 factor (Dkk1) a negative regulator of osteoblast differentiation (bone formation) and the reduction of Interleukin 1-b (Il1b), an activator of osteoclast differentiation (bone reabsorption). Results from this study highlight the possible role of the developmental programming on bone microarchitecture with reference to young women with PCOS.
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Affiliation(s)
- Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | - Werner Giehl Glanzner
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | - Amanda Luiza Prante
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | - Vitor Braga Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | | | - Melissa Orlandin Premaor
- Department of Clinical Medicine, Federal University of Santa Maria (UFSM), Santa Maria, RS.,MOP and FVC are now at the Department of Clinical Medicine, Federal University of Minas Gerais, Belo Horizonte, MG
| | - Alfredo Quites Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS
| | - Fabio Vasconcellos Comim
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS.,Department of Clinical Medicine, Federal University of Santa Maria (UFSM), Santa Maria, RS.,MOP and FVC are now at the Department of Clinical Medicine, Federal University of Minas Gerais, Belo Horizonte, MG
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Tonellotto Dos Santos J, Escarião da Nóbrega J, Serrano Mujica LK, Dos Santos Amaral C, Machado FA, Manta MW, Rizzetti TM, Zanella R, Fighera R, Antoniazzi AQ, Gonçalves PBD, Comim FV. Prenatal Androgenization of Ewes as a Model of Hirsutism in Polycystic Ovary Syndrome. Endocrinology 2018; 159:4056-4064. [PMID: 30376052 DOI: 10.1210/en.2018-00781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 10/24/2018] [Indexed: 02/04/2023]
Abstract
The main clinical feature associated with hyperandrogenism in polycystic ovary syndrome (PCOS) in humans is hirsutism, where hair increases its length, pigmentation, and particularly its diameter. Currently, it is not known whether PCOS animal models also exhibit changes in the hair. Therefore, the aim of this study was to explore the wool characteristics in sheep prenatally androgenized (PA) with testosterone propionate. After 4 and 13 months of life, wool was collected from the top of the shoulder of both females and males (both androgenized and controls). The offspring sheep were followed for up to 19 months of life to evaluate testosterone and androstenedione serum levels by ultra-high-performance liquid chromatography-tandem mass spectrometry, determine insulin and glucose response to intravenous glucose tolerance test, and address estrus cyclicity during the second breeding season. PA male animals showed a reduction in wool fiber diameter at 4 months of age compared with controls (P = 0.02) but not at 13 months, whereas PA females showed increased hair diameter at 13 months (P = 0.002), with no difference at 4 months. No substantial changes in other hair parameters (length, color, and medullation) were identified. In addition, increased levels of serum testosterone were observed in PA female sheep compared with controls at 12 months (P = 0.03). Our results indicate for the first time, to our knowledge, that changes in wool fiber diameter observed in PA ewes replicate, at the translational level, the increase in hair diameter in hirsute women with PCOS.
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Affiliation(s)
- Joabel Tonellotto Dos Santos
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Jandui Escarião da Nóbrega
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Carolina Dos Santos Amaral
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Fabrício Amadori Machado
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Manuela W Manta
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Tiele Medianeira Rizzetti
- Laboratory of Pesticide Analysis (LARP), Department of Chemistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Analysis (LARP), Department of Chemistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - Rafael Fighera
- Department of Pathology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Alfredo Quites Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
| | - Fabio Vasconcellos Comim
- Laboratory of Biotechnology and Animal Reproduction (BioRep), Federal University of Santa Maria, Santa Maria, Brazil
- Department of Clinical Medicine, Health Science Center, Federal University of Santa Maria, Santa Maria, Brazil
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Rissi VB, Glanzner WG, de Macedo MP, Mujica LKS, Campagnolo K, Gutierrez K, Bridi A, Baldassarre H, Gonçalves PBD, Bordignon V. Inhibition of RNA synthesis during Scriptaid exposure enhances gene reprogramming in SCNT embryos. Reproduction 2018; 157:123-133. [PMID: 30444719 DOI: 10.1530/rep-18-0366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 11/09/2018] [Indexed: 11/08/2022]
Abstract
Insufficient epigenetic reprogramming is incompatible with normal development of embryos produced by somatic cell nuclear transfer (SCNT), but treatment with histone deacetylases inhibitors (HDACi) enhances development of SCNT embryos. However, the mechanisms underpinning HDACi benefits in SCNT embryos remain largely uncharacterized. We hypothesized that, in addition to enhancing reprogramming, HDACi treatment may promote expression of genes not required for early development of SCNT embryos. To test this hypothesis, RNA synthesis was inhibited by treating bovine SCNT embryos with 5,6-dichlorobenzimidazole 1-β-D-ribofuranoside (DBR), which were concomitantly treated or not with Scriptaid (Scrip; an HDACi). Development to the blastocyst stage was significantly increased by treatment with Scrip alone (26.6%) or associated with DRB (28.6%) compared to Control (17.9%). The total number of nuclei was significantly improved only in embryos that were treated with both Scrip + DRB. Nuclear decondensation after SCNT was significantly increased by DRB treatment either alone or associated with Scrip. The relative mRNA expression, evaluated during the embryo genome activation (EGA) transition, revealed that some KDMs (KDM1A, KDM3A, KDM4C and KDM6A) and DNMT1 where prematurely expressed in Scrip-treated embryos. However, treatment with Scrip + DRB inhibited early mRNA expression of those genes, as well as several other KDMs (KDM4A, KDM4B, KDM5A, KDM5B, KDM5C and KDM7A) compared to embryos treated with Scrip alone. These findings revealed that HDACi improved development in SCNT embryos compared to Control, but altered the expression of genes involved in epigenetic regulation and did not improve embryo quality. Inhibition of RNA synthesis during HDACi treatment enhanced nuclear chromatin decondensation, modulated gene expression and improved SCNT embryo quality.
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Affiliation(s)
- Vitor Braga Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Werner Giehl Glanzner
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | | | - Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Karine Campagnolo
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Alessandra Bridi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
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Glanzner WG, Rissi VB, de Macedo MP, Mujica LKS, Gutierrez K, Bridi A, de Souza JRM, Gonçalves PBD, Bordignon V. Histone 3 lysine 4, 9, and 27 demethylases expression profile in fertilized and cloned bovine and porcine embryos†. Biol Reprod 2018. [DOI: 10.1093/biolre/ioy054] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Werner Giehl Glanzner
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Vitor Braga Rissi
- Laboratory of Biotechnology and Animal Reproduction—BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | | | - Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction—BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Alessandra Bridi
- Laboratory of Biotechnology and Animal Reproduction—BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - João Ricardo Malheiros de Souza
- Laboratory of Biotechnology and Animal Reproduction—BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction—BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
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Serrano Mujica LK, Bertolin K, Bridi A, Glanzner WG, Rissi VB, de Camargo FDLS, Zanella R, Prestes OD, Moresco RN, Antoniazzi AQ, Dias Gonçalves PB, Premaor MO, Comim FV. The impact of postnatal leuprolide acetate treatment on reproductive characteristics in a rodent model of polycystic ovary syndrome. Mol Cell Endocrinol 2017; 442:125-133. [PMID: 27988272 DOI: 10.1016/j.mce.2016.12.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 12/11/2016] [Accepted: 12/13/2016] [Indexed: 12/09/2022]
Abstract
In this study, a GnRH agonist, leuprolide acetate (LA), was given as a single depot injection before 48 h of life to Wistar female rats allotted to prenatal (E16-18) and postnatal androgenization (day 5 of life) by the use of testosterone propionate, looking for reproductive endpoints. Remarkably, a single injection of LA increased the estrus cycles in the postnatal group (PostN) from 0% to 25% of the estrus cycles in the postnatal LA treated group (PostN L). LA also reduced the serum testosterone levels and cysts and atretic follicles in PostN L in contrast with rats (>100 days) from the PostN group (p = 0.04). Prenatally androgenized rats (PreN) exhibited significant modifications in the hypothalamic genes, such as Gnrh. To the best of our knowledge, this is the first study to show that blockage of the GnRH axis with leuprolide acetate depot prevented the development of typical features (anovulation, cysts, atretic follicles) in a postnatal testosterone propionate rat model of PCOS.
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Affiliation(s)
- Lady Katerine Serrano Mujica
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Kalyne Bertolin
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Alessandra Bridi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Werner Giehl Glanzner
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Vitor Braga Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Flávia de Los Santos de Camargo
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residue Analysis-LARP, Chemistry Department, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Osmar Damian Prestes
- Laboratory of Pesticide Residue Analysis-LARP, Chemistry Department, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Rafael Noal Moresco
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Alfredo Quites Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Melissa Orlandin Premaor
- Department of Clinical Medicine, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Fabio Vasconcellos Comim
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil; Department of Clinical Medicine, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil.
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Akinyemi AJ, Adedara IA, Thome GR, Morsch VM, Rovani MT, Mujica LKS, Duarte T, Duarte M, Oboh G, Schetinger MRC. Dietary supplementation of ginger and turmeric improves reproductive function in hypertensive male rats. Toxicol Rep 2015; 2:1357-1366. [PMID: 28962478 PMCID: PMC5598100 DOI: 10.1016/j.toxrep.2015.10.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/27/2015] [Accepted: 10/03/2015] [Indexed: 02/07/2023] Open
Abstract
Ginger [Zingiber officinale Roscoe (Zingiberaceae)] and turmeric [Curcuma longa Linn (Zingiberaceae)] rhizomes have been reportedly used in folk medicine for the treatment of hypertension. However, the prevention of its complication such as male infertility remains unexplored. Hence, the aim of the present study was to investigate the preventive effects of ginger and turmeric rhizomes on some biomarkers of male reproductive function in L-NAME-induced hypertensive rats. Male Wistar rats were divided into seven groups (n = 10): normotensive control rats; induced (L-NAME hypertensive) rats; hypertensive rats treated with atenolol (10 mg/kg/day); normotensive and hypertensive rats treated with 4% supplementation of turmeric or ginger, respectively. After 14 days of pre-treatment, the animals were induced with hypertension by oral administration of L-NAME (40 mg/kg/day). The results revealed significant decrease in serum total testosterone and epididymal sperm progressive motility without affecting sperm viability in hypertensive rats. Moreover, increased oxidative stress in the testes and epididymides of hypertensive rats was evidenced by significant decrease in total and non-protein thiol levels, glutathione S-transferase (GST) activity with concomitant increase in 2′,7′-dichlorofluorescein (DFCH) oxidation and thiobarbituric acid reactive substances (TBARS) production. Similarly, decreased testicular and epididymal NO level with concomitant elevation in arginase activity was observed in hypertensive rats. However, dietary supplementation with turmeric or ginger efficiently prevented these alterations in biomarkers of reproductive function in hypertensive rats. The inhibition of arginase activity and increase in NO and testosterone levels by both rhizomes could suggest possible mechanism of action for the prevention of male infertility in hypertension. Therefore, both rhizomes could be harnessed as functional foods to prevent hypertension-mediated male reproductive dysfunction.
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Affiliation(s)
- Ayodele Jacob Akinyemi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Private Mail Bag 704, Akure 340001, Nigeria.,Department of Biochemistry, Afe Babalola University Ado-Ekiti, Private Mail Bag 5454, Nigeria.,Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900 Santa Maria, RS, Brazil
| | - Isaac A Adedara
- Departamento de Bioquímica e Biologia Molecular, CCNE, Universidade Federal de Santa Maria, CEP 97105-900 Santa Maria, RS, Brazil.,Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Gustavo Roberto Thome
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900 Santa Maria, RS, Brazil
| | - Vera Maria Morsch
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900 Santa Maria, RS, Brazil
| | - Monique Tomazele Rovani
- Laboratório de Biotecnologia e Reprodução Animal-BioRep, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, RS, Brazil
| | - Lady Katerine Serrano Mujica
- Laboratório de Biotecnologia e Reprodução Animal-BioRep, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, RS, Brazil
| | - Thiago Duarte
- Centro de Ciências da Saude, Universidade Luterana do Brazil (ULBRA), Campus Santa Maria, Santa Maria, RS, Brazil
| | - Marta Duarte
- Centro de Ciências da Saude, Universidade Luterana do Brazil (ULBRA), Campus Santa Maria, Santa Maria, RS, Brazil
| | - Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Private Mail Bag 704, Akure 340001, Nigeria
| | - Maria Rosa Chitolina Schetinger
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900 Santa Maria, RS, Brazil
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