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Lucea S, Chopo-Escuin G, Guillén N, Sosa C, Sorribas V. Intestinal and Renal Adaptations to Changes of Dietary Phosphate Concentrations in Rat. Function (Oxf) 2023; 5:zqad063. [PMID: 38033458 PMCID: PMC10686248 DOI: 10.1093/function/zqad063] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 12/02/2023] Open
Abstract
We have studied the role of the intestine, kidney, and several hormones when adapting to changes in dietary P concentration. Normal and parathyroidectomized (PTX) rats were fed pH-matched diets containing 0.1%, 0.6%, and 1.2% P concentrations. 32Pi uptake was determined in the jejunum and kidney cortex brush border membrane vesicles. Several hormone and ion concentrations were determined in the blood and urine of rats. Both jejunum and kidney cortex Pi transport was regulated with 5 d of chronic feeding of P diets in normal rats. Acute adaptation was determined by switching foods on day 6, which was only clearly observed in the kidney cortex of normal rats, with more statistical variability in the jejunum. However, no paradoxical increase of Pi uptake in the jejunum was reproduced after the acute switch to the 1.2% P diet. Pi uptake in the jejunum was parathyroid hormone (PTH)-independent, but in the kidney, the chronic adaptation was reduced, and no acute dietary adaptations were observed. The NaPi2a protein was more abundant in the PTX than the sham kidneys, but contrary to the modest or absent changes in Pi uptake adaptation, the transporter was similarly regulated by dietary P, as in the sham rats. PTH and fibroblast growth factor 23 (FGF23) were the only hormones regulated by all diet changes, even in fasting animals, which exhibited regulated Pi transport despite similar phosphatemia. Evidence of Pi appetite effects was also observed. In brief, our results show new characteristics of Pi adaptations, including a lack of correlation between Pi transport, NaPi2a expression, and PTH/FGF23 concentrations.
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Affiliation(s)
- Susana Lucea
- Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza, E50013 Zaragoza, Spain
| | - Gema Chopo-Escuin
- Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza, E50013 Zaragoza, Spain
| | - Natalia Guillén
- Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza, E50013 Zaragoza, Spain
| | - Cecilia Sosa
- Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza, E50013 Zaragoza, Spain
| | - Víctor Sorribas
- Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza, E50013 Zaragoza, Spain
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Sosa C, Laurenzana E, de Brun V, Meikle A, Abecia JA. The melatonin system is expressed in the ovine uterus: effect of the day of the oestrous cycle and undernutrition. Reprod Fertil Dev 2023:RD22194. [PMID: 37290449 DOI: 10.1071/rd22194] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 05/17/2023] [Indexed: 06/10/2023] Open
Abstract
CONTEXT Melatonin influences female reproduction, but expression of the melatonin system has not been characterised in the ovine uterus. AIMS We aimed to determine whether synthesising enzymes (arylalkylamine N-acetyltransferase (AANAT) and N-acetylserotonin-O-methyltransferase (ASMT)), melatonin receptors 1 and 2 (MT1 and MT2), and catabolising enzymes (myeloperoxidase (MPO) and indoleamine 2,3-dioxygenase 1 and 2 (IDO1 and 2)), are expressed in the ovine uterus, and if they are influenced by the oestrous cycle (Experiment 1) or by undernutrition (Experiment 2). METHODS In Experiment 1, gene and protein expression was determined in sheep endometrium samples collected on days 0 (oestrus), 5, 10 and 14 of the oestrous cycle. In Experiment 2, we studied uterine samples from ewes fed either 1.5 or 0.5times their maintenance requirements. KEY RESULTS We have demonstrated the expression of AANAT and ASMT in the endometrium of sheep. AANAT and ASMT transcripts, and AANAT protein were more elevated at day 10, then decreased to day 14. A similar pattern was observed for MT2, IDO1, and MPO mRNA, which suggests that the endometrial melatonin system might be influenced by ovarian steroid hormones. Undernutrition increased AANAT mRNA expression, but seemed to decrease its protein expression, and increased MT2 and IDO2 transcripts, whereas ASMT expression was unaffected. CONCLUSIONS The melatonin system is expressed in the ovine uterus and is affected by oestrous cycle and undernutrition. IMPLICATIONS The results help explain the adverse effects of undernutrition on reproduction in sheep, and the success of exogenous melatonin treatments in improving reproductive outcomes.
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Fernández-Foren A, Sosa C, Abecia JA, Meneses C, Meikle A. Metabolic memory determines oviductal gene expression of underfed ewes during early gestation. Theriogenology 2023; 198:123-130. [PMID: 36584633 DOI: 10.1016/j.theriogenology.2022.12.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Our aim was to investigate the oviduct environment by studying oviduct gene expression after undernutrition in day-5 pregnant ewes with different initial (i) BCS, and its association with the number of embryos recovered. Thirty-six ewes were divided into 2 groups with different iBCS: iBCS ≥2.75 (n = 19; high, H) and iBCS ≤2.25 (n = 17; low, L), and were randomly assigned to two nutritional treatments for 20 days: 1.5 (control, C) or 0.5 (underfed, U) times the daily maintenance requirements. Thus, the final four groups were: high-iBCS control (HC, n = 9), high-iBCS underfed (HU, n = 10), low-iBCS control (LC, n = 9) and low-iBCS underfed (LU, n = 8). Samples of oviduct were collected and the expression of target genes was quantified using real-time PCR. While high-iBCS control ewes presented more ADIPOR1 mRNA than the high-iBCS underfed group (P < 0.05) and low-iBCS control ewes (P = 0.01), high-iBCS underfed group presented higher ADIPOR2 gene expression than low-iBCS underfed ewes (P < 0.01) evidencing a differential oviductal gene expression for these receptors. In high-iBCS ewes, control animals presented higher IGFBP2 gene expression than underfed ewes (P < 0.05), associated these results with a poor oviductal environment. High-iBCS underfed ewes presented higher IGFBP4 gene expression than high-iBCS control ewes (P < 0.05). Stepwise regression models, using various combinations of data on metabolic and reproductive hormones, and oviduct gene expression as independent variables, identified a set of variables that accounted for 75% of the variation in the number of embryos recovered. In conclusion, the oviductal gene expression depends on body reserves and nutritional treatment, and the effect is gene-specific.
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Affiliation(s)
- A Fernández-Foren
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, Universidad de la República, Ruta 8, Km. 18, intersección Ruta 102, CP, 13000, Montevideo, Uruguay.
| | - C Sosa
- Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet, 177, Zaragoza, 50013, Spain
| | - J A Abecia
- Instituto de Investigación en Ciencias Ambientales (IUCA), Universidad de Zaragoza, Miguel Servet, 177, Zaragoza, 50013, Spain
| | - C Meneses
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, Universidad de la República, Ruta 8, Km. 18, intersección Ruta 102, CP, 13000, Montevideo, Uruguay
| | - A Meikle
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, Universidad de la República, Ruta 8, Km. 18, intersección Ruta 102, CP, 13000, Montevideo, Uruguay
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Abstract
Nicotinamide is an important regulator of Pi homeostasis after conversion into NAD+/NADH. In this work, we have studied the classical inhibition of Pi transport by these compounds in the brush border membrane vesicles (BBMV) of rat kidney and rat intestine, and we examined the effects in Opossum Kidney (OK) cells and in phosphate transporter-expressing Xenopus laevis oocytes. In BBMV, NAD+ required preincubation at either room temperature or on ice to inhibit Pi uptake in BBMV. However, no effects were observed in the known Slc34 or Slc20 Pi transporters expressed in Xenopus oocytes, in OK cells, or in isolated rat cortical nephron segments. In BBMV from jejunum or kidney cortex, the inhibition of Pi transport was specific, dose-related, and followed a competitive inhibition pattern, as shown by linear transformation and non-linear regression analyses. A Ki value of 538 µM NAD+ in kidney BBMV was obtained. Ribosylation inhibitors and ribosylation assays revealed no evidence that this reaction was responsible for inhibiting Pi transport. An analysis of the persistence of NAD+/NADH revealed a half-life of just 2 minutes during preincubation. Out of several metabolites of NAD degradation, only ADP-ribose was able to inhibit Pi uptake. Pi concentration also increased during 30 minutes of preincubation, up to 0.67mM, most likely as a metabolic end-product. In conclusion, the classical inhibition of Pi transport by NAD+/NADH in BBMV seems to be caused by the degradation metabolites of these compounds during the preincubation time.
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Affiliation(s)
- Susana Lucea
- Group of Molecular Toxicology, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
| | - Natalia Guillén
- Group of Molecular Toxicology, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
| | - Cecilia Sosa
- Group of Molecular Toxicology, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
| | - Victor Sorribas
- Group of Molecular Toxicology, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
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Sosa C, Rivas M, Mascareño P, Amarilla L, Ricardo A, Rojas M, Gonzalez J, Sosa P. Outcome of fetal microneurosurgery for intrauterine spina bifida repair in country with deficient healthcare system. Ultrasound Obstet Gynecol 2022; 59:120-122. [PMID: 34255893 DOI: 10.1002/uog.23738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/26/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Affiliation(s)
- C Sosa
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
- Unidad de Cirugía Experimental, Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, Caracas, Venezuela
| | - M Rivas
- Departamento de Neurocirugía Pediátrica, Hospital de Clínicas, Facultad de Medicina, Universidad Nacional de Asunción, Asunción, Paraguay
| | - P Mascareño
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
| | - L Amarilla
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
| | - A Ricardo
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
| | - M Rojas
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
| | - J Gonzalez
- Departamento de Neurocirugía Pediátrica, Hospital de Clínicas, Facultad de Medicina, Universidad Nacional de Asunción, Asunción, Paraguay
| | - P Sosa
- Fundación Fetosur, Medicina Materno Fetal y Cirugía Fetal, Sanatorio Internacional, Ciudad del Este, Paraguay
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Lucea S, Guillén N, Sosa C, Sorribas V. Intestinal and Renal Pi Transport Adaptation and Hormonal Changes in Response to Acute Changes in Dietary Pi. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.03745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lucea S, Guillén N, Sosa C, Sorribas V. Characterization of Sodium‐Dependent Pi Transport Inhibition by NAD. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.03701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mercadal‐Barrachina I, Chopo‐Escuin G, Lucea S, Guillén N, Sosa C, Sorribas V. Slc26A9 is a Sodium‐Activated Phosphate Transporter. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.03776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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de Brun V, Loor JJ, Naya H, Graña-Baumgartner A, Vailati-Riboni M, Bulgari O, Shahzad K, Abecia JA, Sosa C, Meikle A. The presence of an embryo affects day 14 uterine transcriptome depending on the nutritional status in sheep. b. Immune system and uterine remodeling. Theriogenology 2020; 161:210-218. [PMID: 33340754 DOI: 10.1016/j.theriogenology.2020.12.008] [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] [Received: 10/15/2019] [Revised: 12/07/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
Transcriptomics and bioinformatics were used to investigate the potential interactions of undernutrition and the presence of the conceptus at the time of maternal recognition of pregnancy on uterine immune system and remodeling. Adult Rasa Aragonesa ewes were allocated to one of two planes of nutrition for 28 days: maintenance energy intake (control; 5 cyclic, 6 pregnant ewes) providing 7.8 MJ of metabolisable energy and 0.5 maintenance intake (undernourished; 6 cyclic, 7 pregnant ewes) providing 3.9 MJ of metabolisable energy per ewe. Uterine gene expression was measured using Agilent 15 K Sheep Microarray chip on day 14 of estrus or pregnancy. Functional bioinformatics analyses were performed using PANTHER (Protein ANalysis THrough Evolutionary Relationships) Classification System. Pregnancy affected the expression of 18 genes in both control and undernourished ewes, underscoring the relevance for embryo-maternal interactions. Immune system evidenced by classical interferon stimulated genes were activated in control and -in a lesser extent-in undernourished pregnant vs cyclic ewes. Genes involved in uterine remodeling such as protein metabolism were also upregulated with the presence of an embryo in control and undernourished ewes. However, relevant genes for the adaptation of the uterus to the embryo were differentially expressed between pregnant vs cyclic ewes both in control and undernourished groups. Undernutrition alone led to an overall weak activation of immune system pathways both in cyclic and pregnant ewes. Data revealed that cellular and immune adaptations of the uterus to pregnancy are dependent on the nutritional status.
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Affiliation(s)
- Victoria de Brun
- Laboratorio de Endocrinología y Metabolismo Animal, Universidad de la República, Montevideo, Uruguay.
| | - Juan J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Hugo Naya
- Departamento de Bioinformática, Institut Pasteur de Montevideo, Uruguay
| | - Andrea Graña-Baumgartner
- Laboratorio de Endocrinología y Metabolismo Animal, Universidad de la República, Montevideo, Uruguay
| | - Mario Vailati-Riboni
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Omar Bulgari
- Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - Khuram Shahzad
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - José Alfonso Abecia
- Instituto de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Spain
| | - Cecilia Sosa
- Departamento de Anatomía Patológica, Medicina Legal, Forense y Toxicología, Universidad de Zaragoza, Spain
| | - Ana Meikle
- Laboratorio de Endocrinología y Metabolismo Animal, Universidad de la República, Montevideo, Uruguay
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Jurado Vargas M, Carbajo Chávez J, Sánchez Sánchez R, Sosa C. Gamma-ray measurements of the activated target components in a cyclotron used for positron emission tomography. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.109153] [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] [Indexed: 11/29/2022]
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Sosa C, Guillén N, Lucea S, Sorribas V. Effects of oral exposure to arsenite on arsenic metabolism and transport in rat kidney. Toxicol Lett 2020; 333:4-12. [PMID: 32736004 DOI: 10.1016/j.toxlet.2020.07.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/26/2020] [Accepted: 07/26/2020] [Indexed: 12/14/2022]
Abstract
Nephrotoxicity is within the recognized toxic effects of arsenic. In this study we assessed the effect of arsenite on the renal capacity to metabolize and handle arsenicals in rats exposed to drinking water with 0, 1, 5, or 10 ppm sodium arsenite for ten days. Arsenite treatment did not affect the gene expression of the main enzyme catalyzing methylation of arsenite, As3mt, while it reduced the expression of GSTO1 mRNA and protein. Arsenite decreased the expression of Aqp3, Mrp1, Mrp4, and Mdr1b (i.e., transporters and channels used by arsenic), but not that of Aqp7, Glut1, Mrp2, and Mdr1a. The protein abundance of AQP3 was also reduced by arsenite. Arsenite increased urinary NGAL and FABP3 and decreased Klotho plasma levels, without alteration of creatinine, which evidenced early tubular damage. Renal Klotho mRNA and protein expressions were also downregulated, which may exacerbate renal damage. No effect was observed in selected miRNAs putatively associated with renal injury. Plasma PTH and FGF23 were similar between groups, but arsenite decreased the renal expression of Fgfr1 mRNA. In conclusion, exposure to arsenite alters the gene expression of proteins involved in the cellular handling of arsenical species and elicits tubular damage.
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Affiliation(s)
- Cecilia Sosa
- Toxicology, Veterinary Faculty, University of Zaragoza. Miguel Servet 177, 50.013 Zaragoza, Spain.
| | - Natalia Guillén
- Toxicology, Veterinary Faculty, University of Zaragoza. Miguel Servet 177, 50.013 Zaragoza, Spain
| | - Susana Lucea
- Toxicology, Veterinary Faculty, University of Zaragoza. Miguel Servet 177, 50.013 Zaragoza, Spain
| | - Víctor Sorribas
- Toxicology, Veterinary Faculty, University of Zaragoza. Miguel Servet 177, 50.013 Zaragoza, Spain
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de Brun V, Loor JJ, Naya H, Vailati-Riboni M, Bulgari O, Shahzad K, Abecia JA, Sosa C, Meikle A. The embryo affects day 14 uterine transcriptome depending on nutritional status in sheep. a. Metabolic adaptation to pregnancy in nourished and undernourished ewes. Theriogenology 2020; 146:14-19. [PMID: 32036055 DOI: 10.1016/j.theriogenology.2020.01.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/15/2019] [Revised: 12/20/2019] [Accepted: 01/26/2020] [Indexed: 12/16/2022]
Abstract
This study investigated the effects of undernutrition and the presence of the conceptus at the time of maternal recognition of pregnancy on the expression of uterine indicators of metabolism in ewes. Adult Rasa Aragonesa ewes were allocated to one of two planes of nutrition for 28 days: maintenance energy intake (control; 5 cyclic and 6 pregnant ewes) providing 7.8 MJ of metabolisable energy, and 0.5 maintenance intake (undernourished; 6 cyclic and 7 pregnant ewes) providing 3.9 MJ of metabolisable energy per ewe. RNA from intercaruncular uterine tissue was harvested at slaughter on Day 14 of estrous cycle or pregnancy, and hybridized to the Agilent 15K Sheep Microarray chip. Functional bioinformatics analyses were performed using PANTHER (Protein ANalysis THrough Evolutionary Relationships) Classification System. The presence of the embryo upregulated expression of genes encoding peptide and monocarboxylate transporters regardless of nutritional treatment, although the degree of gene expression was lower in undernourished ewes. Genes encoding enzymes involved in glycolysis were downregulated both in pregnant control and undernourished ewes, probably as a compensatory mechanism for the increased glucose transport to the uterus. Compared with control cyclic ewes, control pregnant ewes had greater expression of genes involved in oxidation of fatty acids, suggesting increased uterine energy demands. This was not observed in undernourished pregnant animals when compared to undernourished cyclic ewes; nevertheless, those animals had lower uterine expression of enzymes involved in fatty acid biosynthesis. The presence of the embryo upregulated genes involved in electron transport probably as a result of increased energy demands for pregnancy. Overall, the data indicate that depending on the nutritional status of ewe, pregnancy alters gene expression of metabolic pathways related to energy generation in the uterus. An impairment in nutrient transport and metabolism in the uterus of pregnant undernourished ewes may explain the greater embryo mortality associated with undernutrition.
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Affiliation(s)
- Victoria de Brun
- Laboratorio de Endocrinología y Metabolismo Animal, Universidad de la República, Montevideo, Uruguay.
| | - Juan J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Hugo Naya
- Departamento de Bioinformática, Institut Pasteur de Montevideo, Uruguay
| | - Mario Vailati-Riboni
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Omar Bulgari
- Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - Khuram Shahzad
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - José Alfonso Abecia
- Instituto de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Spain
| | | | - Ana Meikle
- Laboratorio de Endocrinología y Metabolismo Animal, Universidad de la República, Montevideo, Uruguay
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Abstract
We have studied inorganic phosphate (Pi) handling in rat aortic vascular smooth muscle cells (VSMC) using 32P-radiotracer assays. Our results have revealed a complex set of mechanisms consisting of 1) well-known PiT1/PiT2-mediated sodium-dependent Pi transport; 2) Slc20-unrelated sodium-dependent Pi transport that is sensitive to the stilbene derivatives 4,4'-diisothiocyanatostilbene-2,2'-disulphonic acid (DIDS) and 4-acetamido-4-isothiocyanostilbene-2,2-disulfonate (SITS); 3) a sodium-independent Pi uptake system that is competitively inhibited by sulfate, bicarbonate, and arsenate and is weakly inhibited by DIDS, SITS, and phosphonoformate; and 4) an exit pathway from the cell that is partially chloride dependent and unrelated to the known anion-exchangers expressed in VSMC. The inhibitions of sodium-independent Pi transport by sulfate and of sodium-dependent transport by SITS were studied in greater detail. The maximal inhibition by sulfate was similar to that of Pi itself, with a very high inhibition constant (212 mM). SITS only partially inhibited sodium-dependent Pi transport, but the Ki was very low (14 µM). Nevertheless, SITS and DIDS did not inhibit Pi transport in Xenopus laevis oocytes expressing PiT1 or PiT2. Both the sodium-dependent and sodium-independent transport systems were highly dependent on VSMC confluence and on the differentiation state, but they were not modified by incubating VSMC for 7 days with 2 mM Pi under nonprecipitating conditions. This work not only shows that the Pi handling by cells is highly complex but also that the transport systems are shared with other ions such as bicarbonate or sulfate.NEW & NOTEWORTHY In addition to the inorganic phosphate (Pi) transporters PiT1 and PiT2, rat vascular smooth muscle cells show a sodium-dependent Pi transport system that is inhibited by DIDS and SITS. A sodium-independent Pi uptake system of high affinity is also expressed, which is inhibited by sulfate, bicarbonate, and arsenate. The exit of excess Pi is through an exchange with extracellular chloride. Whereas the metabolic effects of the inhibitors, if any, cannot be discarded, kinetic analysis during initial velocity suggests competitive inhibition.
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Affiliation(s)
- Luis Hortells
- Veterinary Faculty, Department of Toxicology, University of Zaragoza, Zaragoza, Spain
| | - Natalia Guillén
- Veterinary Faculty, Department of Toxicology, University of Zaragoza, Zaragoza, Spain
| | - Cecilia Sosa
- Veterinary Faculty, Department of Toxicology, University of Zaragoza, Zaragoza, Spain
| | - Víctor Sorribas
- Veterinary Faculty, Department of Toxicology, University of Zaragoza, Zaragoza, Spain
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Fernández-Foren A, Sosa C, Abecia JA, Vázquez MI, Forcada F, Meikle A. Dietary restriction in sheep: Uterine functionality in ewes with different body reserves during early gestation. Theriogenology 2019; 135:189-197. [PMID: 31226609 DOI: 10.1016/j.theriogenology.2019.06.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 04/24/2019] [Accepted: 06/11/2019] [Indexed: 10/26/2022]
Abstract
The aim of this study was to characterize insulin, leptin and IGF-1 profiles after undernutrition in pregnant ewes with different initial body condition (iBCS) and to investigate embryo quality, uterine gene expression and presence and location of proteins during early gestation (day 5). Thirty-six Rasa Aragonesa ewes were divided into 2 groups with different BCS: BCS> 2.75 (high, H, n = 19) and BCS <2.25 (low, L, n = 17) and they were randomly assigned to two nutritional treatments: 1.5 maintenance (M) (control, C) or 0.5 (M) (undernourishment, U) times the daily maintenance requirements establishing four groups: high-iBCS control (HC, n = 9), high-iBCS undernourished (HU, n = 10), low-iBCS control (LC, n = 9) and low-iBCS undernourished (LU, n = 8). High-iBCS ewes presented higher concentration of IGF-1, reflecting a better metabolic status in these animals. There was a greater proportion of high-iBCS ewes presenting more than one CL (P < 0.05), and associated greater P4 plasma concentration, number of recovered embryo and a tendency for higher embryo viability rate (P = 0.13). In uterus, undernourished ewes tended to present lower P4 (P = 0.09) and higher E2 concentration (P = 0.10). Inmunostaining of uterine progesterone and estrogen receptors (PR and ERα) was not affected by iBCS and nutritional treatment. Ewes with low-iBCS tended to have more INSR mRNA, and undernourished ewes tended to have more IGFBP2 mRNA expression (P < 0.08). An interesting finding was that the uterine response to undernutrition was dependent on iBCS: a higher expression of GHR (P < 0.05) and a tendency in IGFBP5 (P = 0.09) mRNA was found in undernourished than control ewes but only in the high-iBCS group. In summary, the present study demonstrates that the endocrine response and the uterine gene expression to undernutrition depend on the initial body energy reserves (iBCS) and appears to be associated with a differential embryo quality.
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Affiliation(s)
- A Fernández-Foren
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, UdelaR, C/ Lasplaces 1550, Montevideo, 11600, Uruguay.
| | - C Sosa
- Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, C/ Miguel Servet 177, Zaragoza, 50013, Spain
| | - J A Abecia
- Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, C/ Miguel Servet 177, Zaragoza, 50013, Spain
| | - M I Vázquez
- Reproducción Animal, Facultad de Agronomía y Veterinaria, UNRC, Ruta Nac. 36, km 601, Río Cuarto, 5800, Argentina
| | - F Forcada
- Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, C/ Miguel Servet 177, Zaragoza, 50013, Spain
| | - A Meikle
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, UdelaR, C/ Lasplaces 1550, Montevideo, 11600, Uruguay
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Abecia JA, Meikle A, Vázquez MI, Casao A, Forcada F, Sosa C. 193 Melatonin implants in spring improve embryo production of aged ewes after superovulation regardless of endometrial progesterone receptor expression. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Twenty-three Rasa Aragonesa aged ewes (average age: 10.3±0.3 years) were used to determine the effect of melatonin on ovulatory response, embryo production, and endometrial expression of progesterone receptors (PR) after superovulation. Ewes were treated (M, n=13) or not (control, C, n=10) with melatonin implants in March (Day 0, Northern Hemisphere autumn), and received intravaginal progestogen sponges for 14 days on Day 77. Superovulatory treatments consisted of 8 doses in decreasing concentrations (2 mL×2 and 1 mL×6) of 176 NIH-FSH-S1 units of NIADDK-oFSH-17 (Ovagen, ICPbio Reproduction, Auckland, New Zealand) administered twice daily starting 72h before sponge removal. Seven days after oestrus, embryos were recovered by laparotomy, ewes were killed, and uterine horns were processed to study PR expression by immunohistochemistry. The amount of PR was estimated subjectively by 2 independent observers in 5 endometrial compartments: luminal epithelium (LE), superficial (sGE) and deep (dGE) glandular epithelia, and superficial (sS) and deep (dS) stroma. The extent of staining was expressed on a scale from 0 to 100. Data were analysed with a 2×2 factorial ANOVA. Melatonin implants improved fertilization (92v. 57%, for M and C groups, respectively; P<0.01), blastocyst (47v. 9%; P<0.01), viability (88v. 31%; P<0.0001), and freezability (69v. 21%; P<0.001) rates. Specifically, melatonin induced a significant reduction of the number of non-viable (degenerate and retarded) embryos (0.3v. 1.5; P<0.05) and increased blastocysts (2.8v. 0.8; P<0.05) per ewe. Melatonin treatment decreased PR staining intensity (47v. 55%; P<0.05), but this effect was not observed when the individual cell types were compared (Table 1). Because the number of corpora lutea (CL) was responsible for different PR expression in both groups (P<0.0001), animals were divided into 2 ovulation rate categories: <10 CL and ≥10 CL, with lesser PR expression in the ≥10 CL group (P<0.0001); this lower PR immunostaining in ≥10 CL is consistent with progesterone down-regulation of its own receptor. An interaction among number of CL and treatment was found for embryo quality (P<0.05); thus, the positive effect of melatonin on this parameter was particularly effective in the low-ovulation-rate group. These results demonstrate that melatonin treatment in the autumn improves embryo quality in aged ewes, and that this effect is not explained by a differential endometrial sensitivity to progesterone.
Table 1.Embryo production (mean±s.e.m.) in melatonin-treated (M) and control (C) ewes after superovulation in autumn, and staining intensity of progesterone receptors in the endometrium (CL=corpora lutea)
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Sorribas V, Guillén N, Sosa C. Substrates and inhibitors of phosphate transporters: from experimental tools to pathophysiological relevance. Pflugers Arch 2018; 471:53-65. [DOI: 10.1007/s00424-018-2241-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/21/2018] [Accepted: 11/25/2018] [Indexed: 12/26/2022]
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Laufer J, Scasso S, Sotero G, Sosa C. Autologous Transobturator Urethral Sling Placement for Female Stress Urinary Incontinence. Initial Experience at a University Hospital in Uruguay. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.036] [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] [Indexed: 10/28/2022]
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Meikle A, Brun VD, Carriquiry M, Soca P, Sosa C, Adrien MDL, Chilibroste P, Abecia JA. Influences of nutrition and metabolism on reproduction of the female ruminant. Anim Reprod 2018; 15:899-911. [PMID: 36249854 PMCID: PMC9536053 DOI: 10.21451/1984-3143-ar2018-0017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/13/2018] [Indexed: 11/17/2022] Open
Abstract
Beef cows and ewes grazing native pastures are exposed to cycles of undernutrition that reflect the seasonal variations of biomass production. In grazing dairy cows, the physiological undernutrition during early lactation due to increased demands for lactation and low dry matter intake is exacerbated by the need to get sufficient intake from pasture and the extra grazing energy costs. Undernutrition has profound impacts on reproduction by affecting multiple reproductive processes at different levels of the reproductive axis. The objective of this paper is to review the influence of undernutrition on reproductive events of the adult female ruminant, with emphasis on both grassland and mixed rain-fed grazing farming systems. The comparative endocrinology and reproductive biology among ewes, beef and dairy cows may provide a comprehensive knowledge of the metabolic and reproductive adaptation to feed restriction. Understanding the critical underlying physiological mechanisms by which nutrition affects reproduction is the base of focus feeding strategy to improve the reproductive performance of the female ruminant.
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Sosa C, Zuccarino F. Floating Aortic Thrombus in a Non-aneurysmal and Non-atherosclerotic Aorta. Eur J Vasc Endovasc Surg 2017; 55:491. [PMID: 29212603 DOI: 10.1016/j.ejvs.2017.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/07/2017] [Indexed: 10/18/2022]
Affiliation(s)
- C Sosa
- Department of Angiology and Vascular Surgery, Hospital del Mar, Barcelona, Spain.
| | - F Zuccarino
- Department of Radiology, Hospital del Mar, Barcelona, Spain
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Hortells L, Sosa C, Guillén N, Lucea S, Millán Á, Sorribas V. Identifying early pathogenic events during vascular calcification in uremic rats. Kidney Int 2017; 92:1384-1394. [DOI: 10.1016/j.kint.2017.06.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 06/12/2017] [Accepted: 06/15/2017] [Indexed: 01/04/2023]
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Sosa C, Malezan A, Poletti M, Perez R. Compact energy dispersive X-ray microdiffractometer for diagnosis of neoplastic tissues. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Piñeiro JF, Bulters D, Ortega S, Fabelo H, Kabwama S, Sosa C, Bishop S, Martínez-González A, Szolna A, Callico GM. P04.20 Hyperspectral imaging for brain tumour identification and boundaries delineation in real-time during neurosurgical operations. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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de Brun V, Meikle A, Fernández-Foren A, Forcada F, Palacín I, Menchaca A, Sosa C, Abecia JA. Failure to establish and maintain a pregnancy in undernourished recipient ewes is associated with a poor endocrine milieu in the early luteal phase. Anim Reprod Sci 2016; 173:80-6. [PMID: 27596262 DOI: 10.1016/j.anireprosci.2016.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/18/2016] [Accepted: 08/31/2016] [Indexed: 12/20/2022]
Abstract
Embryos from undernourished and control donor ewes were transferred to undernourished and control recipient ewes. Progesterone and metabolic hormones were investigated in recipient ewes to determine their association with pregnancy success. Forty-five donor and 52 recipient Rasa Aragonesa ewes were fed 1.5 (control group; donor n=20; recipient n=25) or 0.5 (low group; donor n=25; recipient n=27) times the daily requirements for maintenance from the onset of estrous synchronization treatment to embryo collection and transfer. The embryos were collected 7days after the onset of estrus (day 0), and two good-quality embryos were transferred into each recipient ewe. The percentage of pregnant ewes on day 18 and 40 did not differ between the two groups, although the recipient undernourished ewes tended to have greater late embryonic mortality (from days 18-40) than the control recipient ewes (P=0.11). No effect of the nutrition of the donor was found. Recipients that became pregnant had a higher ovulation rate than non-pregnant ewes (P=0.02). Undernourished ewes had lower plasma insulin concentrations than control ewes (P=0.03), and those that suffered late embryo mortality (from days 18-40) tended to have lower insulin and progesterone concentrations than their counterparts that remained pregnant (P=0.06 and P=0.07, respectively). In this study, pregnancy in control and undernourished recipient ewes was not associated with the origin of the embryo (undernourished and control donors). In conclusion, failure to establish and maintain a pregnancy was associated with lower progesterone and insulin levels one week after estrus in recipient ewes.
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Affiliation(s)
- Victoria de Brun
- Laboratorio de Técnicas Nucleares, Universidad de la República, Uruguay.
| | - Ana Meikle
- Laboratorio de Técnicas Nucleares, Universidad de la República, Uruguay
| | | | - Fernando Forcada
- Instituto Universitario de investigación en Ciencias Ambientales (IUCA). Universidad de Zaragoza, Spain
| | - Inmaculada Palacín
- Instituto Universitario de investigación en Ciencias Ambientales (IUCA). Universidad de Zaragoza, Spain
| | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay (IRAUy). Montevideo, Uruguay
| | - Cecilia Sosa
- Departamento de Anatomía Patológica, Medicina Legal y Forense y Toxicología, Universidad de Zaragoza, Spain
| | - José-Alfonso Abecia
- Instituto Universitario de investigación en Ciencias Ambientales (IUCA). Universidad de Zaragoza, Spain
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Hortells L, Sosa C, Millán Á, Sorribas V. Critical Parameters of the In Vitro Method of Vascular Smooth Muscle Cell Calcification. PLoS One 2015; 10:e0141751. [PMID: 26554928 PMCID: PMC4640663 DOI: 10.1371/journal.pone.0141751] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 10/13/2015] [Indexed: 01/14/2023] Open
Abstract
Background Vascular calcification (VC) is primarily studied using cultures of vascular smooth muscle cells. However, the use of very different protocols and extreme conditions can provide findings unrelated to VC. In this work we aimed to determine the critical experimental parameters that affect calcification in vitro and to determine the relevance to calcification in vivo. Experimental Procedures and Results Rat VSMC calcification in vitro was studied using different concentrations of fetal calf serum, calcium, and phosphate, in different types of culture media, and using various volumes and rates of change. The bicarbonate content of the media critically affected pH and resulted in supersaturation, depending on the concentration of Ca2+ and Pi. Such supersaturation is a consequence of the high dependence of bicarbonate buffers on CO2 vapor pressure and bicarbonate concentration at pHs above 7.40. Such buffer systems cause considerable pH variations as a result of minor experimental changes. The variations are more critical for DMEM and are negligible when the bicarbonate concentration is reduced to ¼. Particle nucleation and growth were observed by dynamic light scattering and electron microscopy. Using 2mM Pi, particles of ~200nm were observed at 24 hours in MEM and at 1 hour in DMEM. These nuclei grew over time, were deposited in the cells, and caused osteogene expression or cell death, depending on the precipitation rate. TEM observations showed that the initial precipitate was amorphous calcium phosphate (ACP), which converts into hydroxyapatite over time. In blood, the scenario is different, because supersaturation is avoided by a tightly controlled pH of 7.4, which prevents the formation of PO43--containing ACP. Conclusions The precipitation of ACP in vitro is unrelated to VC in vivo. The model needs to be refined through controlled pH and the use of additional procalcifying agents other than Pi in order to reproduce calcium phosphate deposition in vivo.
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Affiliation(s)
- Luis Hortells
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
| | - Cecilia Sosa
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
| | - Ángel Millán
- Institute of Materials Science of Aragón, CSIC – Universidad de Zaragoza, Zaragoza, Spain
- * E-mail: (AM); (VS)
| | - Víctor Sorribas
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Zaragoza, Spain
- * E-mail: (AM); (VS)
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Piñol R, Brites CDS, Bustamante R, Martínez A, Silva NJO, Murillo JL, Cases R, Carrey J, Estepa C, Sosa C, Palacio F, Carlos LD, Millán A. Joining time-resolved thermometry and magnetic-induced heating in a single nanoparticle unveils intriguing thermal properties. ACS Nano 2015; 9:3134-42. [PMID: 25693033 DOI: 10.1021/acsnano.5b00059] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Whereas efficient and sensitive nanoheaters and nanothermometers are demanding tools in modern bio- and nanomedicine, joining both features in a single nanoparticle still remains a real challenge, despite the recent progress achieved, most of it within the last year. Here we demonstrate a successful realization of this challenge. The heating is magnetically induced, the temperature readout is optical, and the ratiometric thermometric probes are dual-emissive Eu(3+)/Tb(3+) lanthanide complexes. The low thermometer heat capacitance (0.021·K(-1)) and heater/thermometer resistance (1 K·W(-1)), the high temperature sensitivity (5.8%·K(-1) at 296 K) and uncertainty (0.5 K), the physiological working temperature range (295-315 K), the readout reproducibility (>99.5%), and the fast time response (0.250 s) make the heater/thermometer nanoplatform proposed here unique. Cells were incubated with the nanoparticles, and fluorescence microscopy permits the mapping of the intracellular local temperature using the pixel-by-pixel ratio of the Eu(3+)/Tb(3+) intensities. Time-resolved thermometry under an ac magnetic field evidences the failure of using macroscopic thermal parameters to describe heat diffusion at the nanoscale.
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Affiliation(s)
- Rafael Piñol
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Carlos D S Brites
- ‡Departamento de Física and CICECO Aveiro Institute of Materials, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Rodney Bustamante
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Abelardo Martínez
- §Departamento de Electrónica de Potencia. I3A, Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - Nuno J O Silva
- ‡Departamento de Física and CICECO Aveiro Institute of Materials, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - José L Murillo
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Rafael Cases
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Julian Carrey
- ∥Laboratoire de Physique et Chimie des Nano-Objets (LPCNO)Université de Toulouse, INSA, UPS, CNRS (UMR 5215), F-31077, Toulouse, France
| | - Carlos Estepa
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Cecilia Sosa
- ⊥Departamento de Toxicología, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Fernando Palacio
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Luís D Carlos
- ‡Departamento de Física and CICECO Aveiro Institute of Materials, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Angel Millán
- †Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
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de Brun V, Meikle A, Casal A, Sequeira M, Contreras-Solís I, Carriquiry M, Forcada F, Sosa C, Abecia J. Periconceptional undernutrition modifies endocrine profiles and hepatic gene expression in sheep. J Anim Physiol Anim Nutr (Berl) 2014; 99:710-8. [DOI: 10.1111/jpn.12261] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 09/02/2014] [Indexed: 12/22/2022]
Affiliation(s)
- V. de Brun
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| | - A. Meikle
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| | - A. Casal
- Departamento de Producción Animal y Pasturas; Facultad de Agronomía; Montevideo Uruguay
| | - M. Sequeira
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| | - I. Contreras-Solís
- Departamento de Producción Animal y Ciencia de los Alimentos; Universidad de Zaragoza; Zaragoza Spain
| | - M. Carriquiry
- Departamento de Producción Animal y Pasturas; Facultad de Agronomía; Montevideo Uruguay
| | - F. Forcada
- Departamento de Producción Animal y Ciencia de los Alimentos; Universidad de Zaragoza; Zaragoza Spain
| | - C. Sosa
- Departamento de Producción Animal y Ciencia de los Alimentos; Universidad de Zaragoza; Zaragoza Spain
| | - J.A. Abecia
- Departamento de Producción Animal y Ciencia de los Alimentos; Universidad de Zaragoza; Zaragoza Spain
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27
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Abecia JA, Casao A, Pascual-Alonso M, Lobón S, Aguayo-Ulloa LA, Forcada F, Meikle A, Sosa C, Marín RH, Silva MA, Maria GA. Periconceptional undernutrition increases quantity and quality of oocyte population, but not cognitive or emotional response of 60-day-old lambs. J Anim Physiol Anim Nutr (Berl) 2014; 99:501-10. [DOI: 10.1111/jpn.12211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 05/09/2014] [Indexed: 11/26/2022]
Affiliation(s)
- J. A. Abecia
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - A. Casao
- Dept de Bioquímica y Biología Molecular y Celular; Facultad de Veterinaria; Zaragoza Spain
| | - M. Pascual-Alonso
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - S. Lobón
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - L. A. Aguayo-Ulloa
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - F. Forcada
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - A. Meikle
- Laboratorio de Técnicas Nucleares; Universidad de la República; Montevideo Uruguay
| | - C. Sosa
- Dept de Anatomía Patológica, Medicina Legal y Forense y Toxicología; Facultad de Veterinaria; Universidad de Zaragoza; Zaragoza Spain
| | - R. H. Marín
- Instituto de Investigaciones Biológicas y Tecnológicas (CONICET-UNC) and Instituto de Ciencia y Tecnología de los Alimentos; Facultad de Ciencias Exactas, Físicas y Naturales; Universidad Nacional de Córdoba; Córdoba Argentina
| | - M. A. Silva
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
| | - G. A. Maria
- Dept de Producción Animal y Ciencia de los Alimentos; Facultad de Veterinaria; Zaragoza Spain
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Hortells L, Sosa C, Millán Á, Sorribas V. Calcification in vitro: experimental factors that induce nanocrystal formation (1077.9). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.1077.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Ángel Millán
- institute of Materials Science CSIC‐University of ZaragozaZaragozaSpain
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Martín-Pardillos A, Sosa C, Millán Á, Sorribas V. Effect of water fluoridation on the development of medial vascular calcification in uremic rats. Toxicology 2014; 318:40-50. [PMID: 24561004 DOI: 10.1016/j.tox.2014.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/08/2014] [Accepted: 01/26/2014] [Indexed: 10/25/2022]
Abstract
Public water fluoridation is a common policy for improving dental health. Fluoride replaces the hydroxyls of hydroxyapatite, thereby improving the strength of tooth enamel, but this process can also occur in other active calcifications. This paper studies the effects of water fluoridation during the course of vascular calcification in renal disease. The effect of fluoride was studied in vitro and in vivo. Rat aortic smooth muscle cells were calcified with 2mM Pi for 5 days. Fluoride concentrations of 5-10 μM--similar to those found in people who drink fluoridated water--partially prevented calcification, death, and osteogene expression in vitro. The anticalcifying mechanism was independent of cell activity, matrix Gla protein, and fetuin A expressions, and it exhibited an IC50 of 8.7 μM fluoride. In vivo, however, fluoridation of drinking water at 1.5mg/L (concentration recommended by the WHO) and 15 mg/L dramatically increased the incipient aortic calcification observed in rats with experimental chronic kidney disease (CKD, 5/6-nephrectomy), fed a Pi-rich fodder (1.2% Pi). Fluoride further declined the remaining renal function of the CKD animals, an effect that most likely overwhelmed the positive effect of fluoride on calcification in vitro. Ultrastructural analysis revealed that fluoride did not modify the Ca/P atomic ratio, but it was incorporated into the lattice of in vivo deposits. Fluoride also converted the crystallization pattern from plate to rode-like structures. In conclusion, while fluoride prevents calcification in vitro, the WHO's recommended concentrations in drinking water become nephrotoxic to CKD rats, thereby aggravating renal disease and making media vascular calcification significant.
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Affiliation(s)
- Ana Martín-Pardillos
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Calle Miguel Servet 177, E50013 Zaragoza, Spain.
| | - Cecilia Sosa
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Calle Miguel Servet 177, E50013 Zaragoza, Spain.
| | - Ángel Millán
- Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas-University of Zaragoza, Calle Pedro Cerbuna, s/n. E50009 Zaragoza, Spain.
| | - Víctor Sorribas
- Department of Toxicology, University of Zaragoza, Veterinary Faculty, Calle Miguel Servet 177, E50013 Zaragoza, Spain.
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Vázquez M, Forcada F, Sosa C, Casao A, Sartore I, Fernández-Foren A, Meikle A, Abecia J. Effect of exogenous melatonin on embryo viability and uterine environment in undernourished ewes. Anim Reprod Sci 2013; 141:52-61. [DOI: 10.1016/j.anireprosci.2013.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 06/10/2013] [Accepted: 07/18/2013] [Indexed: 11/29/2022]
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Sosa C, Forcada F, Meikle A, Abecia J. Increase in ovine plasma cortisol at oestrus and its relation with the metabolic status during the sexual cycle in sheep. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2012.704793] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sosa C, Vispe E, Núñez C, Baeta M, Casalod Y, Bolea M, Hedges REM, Martinez-Jarreta B. Association between ancient bone preservation and dna yield: a multidisciplinary approach. Am J Phys Anthropol 2013; 151:102-9. [PMID: 23595645 DOI: 10.1002/ajpa.22262] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 02/19/2013] [Indexed: 11/08/2022]
Abstract
Ancient molecular typing depends on DNA survival in archaeological bones. Finding valuable tools to predict DNA presence in ancient samples, which can be measured prior to undertaking a genetic study, has become an important issue as a consequence of the peculiarities of archaeological samples. Since the survival of DNA is explained by complex interrelations of multiple variables, the aim of the present study was to analyze morphological, structural, chemical, and biological aspects of a set of medieval human bones, to provide an accurate reflection of the state of preservation of the bony components and to relate it with DNA presence. Archaeological bones that yielded amplifiable DNA presented high collagen content (generally more than 12%), low racemization values of aspartic acid (lesser than 0.08), leucine and glutamic acid, low infrared splitting factor, small size of crystallite, and more compact appearance of bone in the scanning electron micrographs. Whether these patterns are characteristic of ancient bones or specific of each burial site or specimen requires further investigation.
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Affiliation(s)
- C Sosa
- Department of Forensic Medicine, Faculty of Medicine, University of Zaragoza, C/Domingo Miral s/n, Zaragoza, 50009, Spain.
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Núñez C, Baeta M, Aznar JM, Sosa C, Casalod Y, Bolea M, Martínez de Pancorbo M, Martínez Jarreta B. Genetic diversity of 10 X chromosome STRs in an admixed population of Nicaragua. Forensic Sci Int Genet 2013; 7:e95-6. [PMID: 23523364 DOI: 10.1016/j.fsigen.2013.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/28/2013] [Accepted: 02/23/2013] [Indexed: 10/27/2022]
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Baeta M, Núñez C, Aznar JM, Sosa C, Casalod Y, Bolea M, González-Andrade F, de Pancorbo MM, Martínez-Jarreta B. Analysis of 10 X-STRs in three population groups from Ecuador. Forensic Sci Int Genet 2013; 7:e19-20. [DOI: 10.1016/j.fsigen.2012.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 05/16/2012] [Accepted: 08/04/2012] [Indexed: 11/25/2022]
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Martín-Pardillos A, Sosa C, Sorribas V. Arsenic Increases Pi-Mediated Vascular Calcification and Induces Premature Senescence in Vascular Smooth Muscle Cells. Toxicol Sci 2012; 131:641-53. [DOI: 10.1093/toxsci/kfs313] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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36
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Alonso J, Sosa C, Verde M, Balsamo A, Moraes M, Zolessi M, Bertolino L, Amaral J, Di Giovanni J. O043 RISK FACTORS FOR TERM SMALL FOR GESTATIONAL AGE. A CASE-CONTROL STUDY IN AN URUGUAYAN POPULATION. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60473-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alonso J, Sosa C, Perez N, Brum C, Sotero G, Rodriguez G, Silvera J. W071 PROCALCITONIN AND ROUTINE BIOMARKERS IN THE DIAGNOSIS OF MATERNAL AND FETAL INFLAMMATORY RESPONSE IN PREGNANT WOMEN WITH PPROM. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61796-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Torrado J, Farro I, Farro F, Bia D, Zocalo Y, Sosa C, Scasso S, Zunini S, Armentano R, Alonso J. O603 CAROTID-RADIAL PULSE WAVE VELOCITY AS AN ALTERNATIVE TOOL FOR THE EVALUATION OF ENDOTHELIAL FUNCTION: POTENTIAL ROLE IN PREDICTING AND CLASSIFYING HYPERTENSIVE DISORDERS OF PREGNANCY. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61033-9] [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] [Indexed: 11/25/2022]
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Johnson T, Adanu R, Obama V, Guinto V, Sosa C, Addington C. I168 IJGO AUTHOR WORKSHOP: AN INSIDER'S GUIDE TO GETTING PUBLISHED. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60198-2] [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] [Indexed: 11/30/2022]
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Sosa C. Anita Brady and Tony SchiratoUnderstanding Judith Butler. London: SAGE, 2011. 152 pp. ISBN 978–1–84787–607–2, £63.00 (cloth). Feminist Theory 2012. [DOI: 10.1177/1464700112454388b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Núnéz C, Sosa C, Baeta M, Geppert M, Turnbough M, Phillips N, Casalod Y, Bolea M, Roby R, Budowle B, Martínez-Jarreta B. Genetic analysis of 7 medieval skeletons from the Aragonese Pyrenees. Croat Med J 2012; 52:336-43. [PMID: 21674829 PMCID: PMC3118721 DOI: 10.3325/cmj.2011.52.336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aim To perform a genetic characterization of 7 skeletons from medieval age found in a burial site in the Aragonese Pyrenees. Methods Allele frequencies of autosomal short tandem repeats (STR) loci were determined by 3 different STR systems. Mitochondrial DNA (mtDNA) and Y-chromosome haplogroups were determined by sequencing of the hypervariable segment 1 of mtDNA and typing of phylogenetic Y chromosome single nucleotide polymorphisms (Y-SNP) markers, respectively. Possible familial relationships were also investigated. Results Complete or partial STR profiles were obtained in 3 of the 7 samples. Mitochondrial DNA haplogroup was determined in 6 samples, with 5 of them corresponding to the haplogroup H and 1 to the haplogroup U5a. Y-chromosome haplogroup was determined in 2 samples, corresponding to the haplogroup R. In one of them, the sub-branch R1b1b2 was determined. mtDNA sequences indicated that some of the individuals could be maternally related, while STR profiles indicated no direct family relationships. Conclusions Despite the antiquity of the samples and great difficulty that genetic analyses entail, the combined use of autosomal STR markers, Y-chromosome informative SNPs, and mtDNA sequences allowed us to genotype a group of skeletons from the medieval age.
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Affiliation(s)
- Carolina Núnéz
- Department of Forensic Medicine, Faculty of Medicine, University of Zaragoza, Zaragoza, Spain.
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42
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Baeta M, Núñez C, Sosa C, Bolea M, Casalod Y, González-Andrade F, Roewer L, Martínez-Jarreta B. Mitochondrial diversity in Amerindian Kichwa and Mestizo populations from Ecuador. Int J Legal Med 2011; 126:299-302. [PMID: 22189782 DOI: 10.1007/s00414-011-0656-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 12/09/2011] [Indexed: 11/29/2022]
Abstract
This study presents mitochondrial DNA (mtDNA) data from 107 unrelated individuals from two of the major ethnic groups in Ecuador: Amerindian Kichwas (n = 65) and Mestizos (n = 42). We characterized the diversity of the matrilineal lineages of these Ecuadorian groups by analyzing the entire mtDNA control region. Different patterns of diversity were observed in the two groups as result of the unique historical and demographic events which have occurred in each population. Higher genetic diversity values were obtained for the Mestizo group than for the Amerindian group. Interestingly, only Native American lineages were detected in the two population samples, but with differences in the haplogroup distribution: Kichwa (A, 49%; B, 3%; C, 8%; and D, 40%) and Mestizo (A, 33%; B, 33%; C, 10%; and D, 24%). Analysis of the complete mtDNA control region proved to be useful to increase the discrimination power between individuals who showed common haplotypes in HVSI and HVSII segments; and added valuable information to the phylogenetic interpretation of mtDNA haplotypes.
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Affiliation(s)
- Miriam Baeta
- Laboratory of Forensic Genetics, Faculty of Medicine, University of Zaragoza, Zaragoza, Spain.
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Nuñez C, Baeta M, Sosa C, Casalod Y, Ge J, Budowle B, Martínez-Jarreta B. Reconstructing the population history of Nicaragua by means of mtDNA, Y-chromosome STRs, and autosomal STR markers. Am J Phys Anthropol 2010; 143:591-600. [PMID: 20721944 DOI: 10.1002/ajpa.21355] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 05/15/2010] [Indexed: 11/12/2022]
Abstract
Before the arrival of the Spaniards in Nicaragua, diverse Native American groups inhabited the territory. In colonial times, Native Nicaraguan populations interacted with Europeans and slaves from Africa. To ascertain the extent of this genetic admixture and provide genetic evidence about the origin of the Nicaraguan ancestors, we analyzed the mitochondrial control region (HVSI and HVSII), 17 Y chromosome STRs, and 15 autosomal STRs in 165 Mestizo individuals from Nicaragua. To carry out interpopulation comparisons, HVSI sequences from 29 American populations were compiled from the literature. The results reveal a close relationship between Oto-manguean, Uto-Aztecan, Mayan groups from Mexico, and a Chibchan group to Nicaraguan lineages. The Native American contribution to present-day Nicaraguan Mestizos accounts for most of the maternal lineages, whereas the majority of Nicaraguan Y chromosome haplogroups can be traced back to a West Eurasian origin. Pairwise Fst distances based on Y-STRs between Nicaragua and European, African and Native American populations show that Nicaragua is much closer to Europeans than the other populations. Additionally, admixture proportions based on autosomal STRs indicate a predominantly Spanish contribution. Our study reveals that the Nicaraguan Mestizo population harbors a high proportion of European male and Native American female substrate. Finally, the amount of African ancestry is also interesting, probably because of the contribution of Spanish conquerors with North African genetic traces or that of West African slaves.
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Affiliation(s)
- Carolina Nuñez
- Laboratory of Forensic Genetics, Faculty of Medicine, University of Zaragoza, 50009 Zaragoza, Spain.
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44
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Baeta M, Núñez C, González-Andrade F, Sosa C, Casalod Y, Bolea M, Zweynert S, Vacas Cruz O, González-Solorzano J, Geppert M, Roewer L, Martínez-Jarreta B. Mitochondrial analysis revealed high homogeneity in the Waorani population—The last nomadic group of hunter-gatherers from Ecuador. Forensic Science International: Genetics Supplement Series 2009. [DOI: 10.1016/j.fsigss.2009.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Alonso J, Balsa A, Caffera M, Piriz G, Sosa C. O42 Exposure to air pollution during pregnancy and its association with perinatal outcomes in Uruguay. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60414-8] [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] [Indexed: 10/20/2022]
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Sosa C, Gonzalez-Bulnes A, Abecia JA, Forcada F, Meikle A. Short-Term Undernutrition Affects Final Development of Ovulatory Follicles in Sheep Synchronized for Ovulation. Reprod Domest Anim 2009; 45:1033-8. [DOI: 10.1111/j.1439-0531.2009.01483.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vázquez M, Forcada F, Casao A, Sosa C, Palacín I, Abecia J. Effects of melatonin and undernutrition on the viability of ovine embryos during anestrus and the breeding season. Anim Reprod Sci 2009; 112:83-94. [DOI: 10.1016/j.anireprosci.2008.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 03/17/2008] [Accepted: 04/02/2008] [Indexed: 01/07/2023]
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Sosa C, Abecia E, Casalod Y, Baeta M, Núñez C, Luna A, Pérez-Cárceles MD, Martínez-Jarreta B. A preliminary study on the incidence of heteroplasmy in mitochondrial DNA from vitreous humour. Leg Med (Tokyo) 2009; 11 Suppl 1:S460-2. [PMID: 19261523 DOI: 10.1016/j.legalmed.2009.01.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Accepted: 01/14/2009] [Indexed: 10/21/2022]
Abstract
Vitreous humour is routinely sampled in Forensic Medicine as several post-mortem analyses can be performed. However, it is not used for DNA analyses probably due to its scarce cellularity. In these samples, in which the study of nuclear DNA is difficult, the analysis of mtDNA is an alternative approach. The aim of this study was to investigate the utility of vitreous humour for forensic identification purposes. Samples were collected during vitrectomy from retinopathy patients, in collection bags with saline solution. Blood samples were also obtained in order to contrast results. Before DNA organic extraction, several centrifugation steps were needed to concentrate the vitreous humour samples. Unlike blood, direct amplification of 400-bp fragments of the hipervariable regions I and II (HVI and HVII) was not successful, possibly due to damage to the DNA strand caused by the surgery conditions (UV radiation, oxidative stress). Therefore, amplification of two overlapping fragments for each control region was performed in vitreous humour. In order to eliminate undesired products, all samples were purified by an enzymatic method. Thereafter, mtDNA fragments were sequenced using dye terminators in a MegaBACE 500 capillary sequencer. Sequences of HVI and HVII of approximately 400 bp were obtained from all samples. The sequences obtained from each patient matched almost perfectly those from blood. In summary, herein we describe for the first time a methodology suitable for the mtDNA analysis of vitreous humour samples.
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Affiliation(s)
- C Sosa
- Department of Forensic Medicine, Faculty of Medicine, University of Zaragoza, C/Domingo Miral s/n, Zaragoza 50.009, Spain.
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Vázquez MI, Forcada F, Casao A, Abecia JA, Sosa C, Palacín I. Undernutrition and exogenous melatonin can affect the in vitro developmental competence of ovine oocytes on a seasonal basis. Reprod Domest Anim 2009; 45:677-84. [PMID: 19281597 DOI: 10.1111/j.1439-0531.2008.01329.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study evaluated the effects of exogenous melatonin and level of nutrition on oocyte competence, in vitro fertilization (IVF), and early embryonic development in sheep during seasonal anoestrus (SA) and the reproductive season (RS). Adult Rasa Aragonesa ewes were assigned randomly to one of four treatment groups in two experiments based on a 2 x 2 x 2 factorial design. Individuals were treated (+MEL) or not treated (-MEL) with a subcutaneous implant of melatonin for 42 days and then were fed 1.5 (Control, C) or 0.5 (Low, L) times the daily maintenance requirements for 20 days. Ewes were synchronized and mated at oestrus (Day = 0). On Day 5, ovaries were collected and oocytes were used for IVF. Season had a significant (p < 0.01) effect on the number of oocytes recovered (RS: 19.6 +/- 1.0; SA: 14.5 +/- 1.0) and the number of healthy oocytes (RS: 13.9 +/- 0.7; SA: 9.0 +/- 0.7). In the RS, neither nutrition nor melatonin had a significant effect on the evaluated oocytes quality parameters although melatonin implants appeared to reduce the number of unhealthy oocytes in the undernourished group (p < 0.05). During SA, in undernourished ewes exogenous melatonin tended to increase the number of healthy (L+MEL: 9.4 +/- 1.0, L-MEL: 7.6 +/- 1.4; p < 0.1), and significantly improved both cleaved oocytes (L+MEL: 7.0 +/- 0.7, L-MEL: 4.1 +/- 0.9; p < 0.05) and blastocyst rate (L+MEL: 37.2, L-MEL: 21.9%; p < 0.05). In conclusion, oocyte competence in ewes was affected by season, and melatonin implants appeared to improve developmental competence in the seasonal anoestrous period, particularly in experimentally undernourished ewes.
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Affiliation(s)
- M I Vázquez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad deVeterinaria, Zaragoza, Spain.
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Sosa C, Abecia JA, Carriquiry M, Forcada F, Martin GB, Palacín I, Meikle A. Early pregnancy alters the metabolic responses to restricted nutrition in sheep. Domest Anim Endocrinol 2009; 36:13-23. [PMID: 18838244 DOI: 10.1016/j.domaniend.2008.08.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [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: 05/10/2008] [Revised: 07/29/2008] [Accepted: 08/25/2008] [Indexed: 11/28/2022]
Abstract
This study investigated whether a 27-day period of nutrition at half-maintenance during early pregnancy (up to Day 14) could alter maternal endocrine responses. Forty-six ewes were fed all or half of their maintenance requirements and slaughtered on Day 14 of the oestrous cycle or pregnancy. We used real time RT-PCR to study gene expression of growth hormone receptor (GHR) and leptin in adipose tissue and GHR, GHR1A and of the insulin-like growth factor I (IGF-I) in the liver. Blood profiles of metabolites and metabolic hormones were also determined. Throughout the experiment, underfed animals presented lower body weight and body condition, greater plasma concentrations of non-esterified fatty acids (NEFA), and lower plasma concentrations of leptin, compared to adequately fed animals. Undernutrition affected the patterns of gene expression in adipose and hepatic tissues, and the responses differed between pregnant and non-pregnant ewes. In adequately fed ewes, pregnancy up-regulated leptin mRNA expression in adipose tissue, a response that was impaired in underfed ewes. The hepatic expression of IGF-I mRNA was increased by pregnancy in underfed animals while no effect was observed in adequately fed ewes. It remains to be determined whether the changes in the endocrine milieu are paralleled by modifications in uterine gene expression that could alter the environment of the embryo during early pregnancy.
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Affiliation(s)
- C Sosa
- Department of Animal Production and Food Science, Veterinary Faculty, Miguel Servet 177, 50013 Zaragoza, Spain
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