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Trujillo-Rojas L, Fernández-Novell JM, Blanco-Prieto O, Martí-Garcia B, Rigau T, Rivera Del Álamo MM, Rodríguez-Gil JE. Rat age-related benign prostate hyperplasia is concomitant with an increase in the secretion of low ramified α-glycosydic polysaccharides. Theriogenology 2022; 189:150-157. [PMID: 35760026 DOI: 10.1016/j.theriogenology.2022.06.011] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022]
Abstract
This work analysed the expression of prostate polysaccharides in rats with age-related benign prostatic hyperplasia (BPH) for a better understanding of the possible relationship between prostate polysaccharides secretion and BPH onset. For this, prostatic glands from 1 month-old, 3 months-old, 6 months-old and 12 months-old Sprague-Dawley rats were processed in order to identify their overall polysaccharide content. Additionally, serum testosterone was also determined. One-month old rats showed significantly (P < 0.05) lower testosterone levels (0.77 ng/mL±0.12 ng/mL) compared with the other groups, which showed no significant difference among them. PAS staining showed positive polysaccharides markings in both the prostatic lumen and inside of luminal prostatic cells in all groups. Semiquantitative analysis of intraluminal PAS showed that one month-old rats had significantly (P < 0.005) lower PAS intensity when compared with all other groups (100.0 ± 0.5, arbitrary units vs. 107.3 ± 0.6, arbitrary units in 3 months-old ones), whereas 12 months-old ones showed significantly (P < 0.005) higher values when compared with all other groups (133.6 ± 3.5, arbitrary units in 12 months-old rats vs. 108.6 ± 1.4, arbitrary units in 6 months-old ones). The PAS + content practically disappeared when tissues were pre-incubated with either α-amylase or amyloglucosidase, regardless of a previous incubation with proteinase K. Incubation of prostate extracts from 12 months-old rats for 2 h with α-amylase yielded a significantly higher amount of free glucose (1.47 nmol/mg protein±0.23 nmol/mg protein vs. 0.32 nmol/mg protein±0.01 nmol/mg protein in untreated extracts). Similar results were obtained when extracts were pre-incubated with amyloglucosidase. Contrarily, pre-incubation with N-glycosidase induced a significantly (P < 0.05), much lower increase of free glucose. Pre-treatment with proteinase K did not significantly modify these results, which indicate that BPH is related to an increase in the secretion of low ramified ductal α-glycosydic polysaccharides that were not protected against lysis by any type of protein protective core. These changes seem to not be related with concomitant variations in serum testosterone levels.
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Affiliation(s)
- L Trujillo-Rojas
- Dept. Animal Medicine and Surgery, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain; Dept. of Veterinary Medicine, School of Agricultural Sciences, University of Pamplona, Pamplona, Colombia
| | - J M Fernández-Novell
- Dept. Biochemistry and Molecular Biology, University of Barcelona, E-08028, Barcelona, Spain
| | - O Blanco-Prieto
- Dept. Animal Medicine and Surgery, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain; Dept. Veterinary Medical Sciences, University of Bologne, I-40126, Bologna, Italy
| | - B Martí-Garcia
- Dept. Animal Safety and Anatomy, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain
| | - T Rigau
- Dept. Animal Medicine and Surgery, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain
| | - M M Rivera Del Álamo
- Dept. Animal Medicine and Surgery, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain
| | - J E Rodríguez-Gil
- Dept. Animal Medicine and Surgery, Autonomous University of Barcelona, E-08193, Bellaterra, Cerdanyola del Vallès, Spain.
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Trujillo-Rojas L, Fernández-Novell J, Blanco-Prieto O, Rigau T, Rivera del Álamo M, Rodríguez-Gil J. The onset of age-related benign prostatic hyperplasia is concomitant with increased serum and prostatic expression of VEGF in rats: Potential role of VEGF as a marker for early prostatic alterations. Theriogenology 2022; 183:69-78. [DOI: 10.1016/j.theriogenology.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 01/04/2022] [Accepted: 01/10/2022] [Indexed: 11/28/2022]
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Catalán J, Papas M, Trujillo-Rojas L, Blanco-Prieto O, Bonilla-Correal S, Rodríguez-Gil JE, Miró J, Yeste M. Red LED Light Acts on the Mitochondrial Electron Chain of Donkey Sperm and Its Effects Depend on the Time of Exposure to Light. Front Cell Dev Biol 2020; 8:588621. [PMID: 33365309 PMCID: PMC7750462 DOI: 10.3389/fcell.2020.588621] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/17/2020] [Indexed: 12/29/2022] Open
Abstract
This work aimed to investigate how stimulation of donkey sperm with red LED light affects mitochondrial function. For this purpose, freshly diluted donkey semen was stimulated with red light for 1, 5, and 10 min, in the presence or absence of oligomycin A (Omy A), a specific inhibitor of mitochondrial ATP synthase, or FCCP, a specific disruptor of mitochondrial electron chain. The results obtained in the present study indicated that the effects of red LED light on fresh donkey sperm function are related to changes in mitochondria function. In effect, irradiation of donkey sperm resulted in an increase in mitochondrial membrane potential (MMP), the activity of cytochrome C oxidase and the rate of oxygen consumption. In addition, in the absence of oligomycin A and FCCP, light-stimulation augmented the average path velocity (VAP) and modified the structure of motile sperm subpopulations, increasing the fastest and most linear subpopulation. In contrast, the presence of either Omy A or FCCP abolished the aforementioned effects. Interestingly, our results also showed that the effects of red light depend on the exposure time applied, as indicated by the observed differences between irradiation protocols. In conclusion, our results suggest that exposing fresh donkey sperm to red light modulates the function of their mitochondria through affecting the activity of the electron chain. However, the extent of this effect depends on the irradiation pattern and does not exclude the existence of other mechanisms, such as those related to thermotaxis.
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Affiliation(s)
- Jaime Catalán
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain.,Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.,Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Marion Papas
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Lina Trujillo-Rojas
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Olga Blanco-Prieto
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Sebastián Bonilla-Correal
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Joan E Rodríguez-Gil
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Jordi Miró
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.,Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
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Blanco-Prieto O, Catalán J, Trujillo-Rojas L, Peña A, Rivera del Álamo MM, Llavanera M, Bonet S, Fernández-Novell JM, Yeste M, Rodríguez-Gil JE. Red LED Light Acts on the Mitochondrial Electron Chain of Mammalian Sperm via Light-Time Exposure-Dependent Mechanisms. Cells 2020; 9:E2546. [PMID: 33256077 PMCID: PMC7760120 DOI: 10.3390/cells9122546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023] Open
Abstract
This work analyzes the effects of red LED light on mammalian sperm mitochondrial function, using the pig as an animal model. Liquid-stored pig semen was stimulated with red-light for 1, 5 and 10 min in the presence or absence of oligomycin A, a specific inhibitor of mitochondrial ATP synthase, or carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (FCCP), a specific disruptor of mitochondrial electron chain. Whereas exposure for 1 and 5 min significantly (p < 0.05) decreased total motility and intracellular ATP levels, irradiation for 10 min induced the opposite effect. Oligomycin A abolished the light-effects on intracellular ATP levels, O2 consumption and mitochondrial membrane potential, whereas compared to non-irradiated samples, FCCP significantly (p < 0.05) increased O2 consumption when sperm were irradiated for 1 min. Both oligomycin A and FCCP significantly (p < 0.05) decreased total motility. Red-light increased cytochrome c oxidase activity with a maximal effect after 5 min of irradiation, which was abolished by both oligomycin A and FCCP. In conclusion, red-light modulates sperm mitochondrial function via electron chain activity in an exposition, time-dependent manner.
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Affiliation(s)
- Olga Blanco-Prieto
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
| | - Jaime Catalán
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (M.L.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Lina Trujillo-Rojas
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
| | - Alejandro Peña
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
| | - Maria Montserrat Rivera del Álamo
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
| | - Marc Llavanera
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (M.L.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Sergi Bonet
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (M.L.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Josep Maria Fernández-Novell
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, E-08028 Barcelona, Spain;
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (M.L.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Joan E. Rodríguez-Gil
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra, E-08193 Cerdanyola del Vallès, Spain; (O.B.-P.); (J.C.); (L.T.-R.); (A.P.); (M.M.R.d.Á.)
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