| Full text | |
| Author(s): |
Martins-Junior, Helio A.
[1, 2]
;
Simas, Rosineide C.
[1, 3]
;
Brolio, Marina P.
[4]
;
Ferreira, Christina R.
[1, 5]
;
Perecin, Felipe
[4]
;
Nogueira, Guilherme de P.
[3]
;
Miglino, Maria A.
[6]
;
Martins, Daniele S.
[4]
;
Eberlin, Marcos N.
[1]
;
Ambrosio, Carlos E.
[4]
Total Authors: 10
|
| Affiliation: | [1] Univ Campinas UNICAMP, Inst Chem, ThoMSon Mass Spectrometry Lab, Campinas, SP - Brazil
[2] AB SCIEX Brazil, Sao Paulo, SP - Brazil
[3] Sao Paulo State Univ UNESP, Fac Vet Med, DAPSA, Aracatuba, SP - Brazil
[4] Univ Sao Paulo, FZEA, Pirassununga, SP - Brazil
[5] Purdue Univ, Dept Chem, W Lafayette, IN 47907 - USA
[6] Univ Sao Paulo, Fac Vet Med & Anim Sci FMVZ, Sao Paulo, SP - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | PLoS One; v. 10, n. 5 MAY 26 2015. |
| Web of Science Citations: | 4 |
| Abstract | |
Golden retriever muscular dystrophy (GRMD) provides the best animal model for characterizing the disease progress of the human disorder, Duchenne muscular dystrophy (DMD). The purpose of this study was to determine steroid hormone concentration profiles in healthy golden retriever dogs (control group - CtGR) versus GRMD-gene carrier (CaGR) and affected female dogs (AfCR). Therefore, a sensitive and specific analytical method was developed and validated to determine the estradiol, progesterone, cortisol, and testosterone levels in the canine serum by isotope dilution liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). To more accurately understand the dynamic nature of the serum steroid profile, the fluctuating levels of these four steroid hormones over the estrous cycle were compared across the three experimental groups using a multivariate statistical analysis. The concentration profiles of estradiol, cortisol, progesterone, and testosterone revealed a characteristic pattern for each studied group at each specific estrous phase. Additionally, several important changes in the serum concentrations of cortisol and estradiol in the CaGR and AfCR groups seem to be correlated with the status and progression of the muscular dystrophy. A comprehensive and quantitative monitoring of steroid profiles throughout the estrous cycle of normal and GRMD dogs were achieved. Significant differences in these profiles were observed between GRMD and healthy animals, most notably for estradiol. These findings contribute to a better understanding of both dog reproduction and the muscular dystrophy pathology. Our data open new venues for hormonal behavior studies in dystrophinopathies and that may affect the quality of life of DMD patients. (AU) | |
| FAPESP's process: | 10/51677-2 - Development of new mass spectrometry techniques and their general applications in science: chemistry, biochemistry, material sciences, forensics, medicine, food science, pharmaceutical and veterinary medicine |
| Grantee: | Marcos Nogueira Eberlin |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 07/51222-2 - Interaction of cell and gene therapy for the correction of Duchenne muscular dystrophy using chimeric endonucleases |
| Grantee: | Carlos Eduardo Ambrósio |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 10/15167-0 - Development and Analytical Validation Method of Simultaneous Quantification of Estradiol and Progesterone for LC-MS/MS in Serum/Bovine Blood Plasma |
| Grantee: | Rosineide Costa Simas |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |