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Sánchez CS, García OL, Ruiz MDLÁC, Pacheco P, Martínez-Gómez M, Corona-Quintanilla DL, Rodríguez-Antolín J, Castelán F, Nicolás-Toledo L. High-sucrose diet-fed male rats show affectations in pubococcygeus reflex activation and myofiber content. Tissue Cell 2023; 82:102047. [PMID: 36841128 DOI: 10.1016/j.tice.2023.102047] [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: 11/04/2022] [Revised: 02/18/2023] [Accepted: 02/19/2023] [Indexed: 02/23/2023]
Abstract
In males, the function of the pubococcygeus muscle (Pcm) shows a high androgen dependency. High sucrose intake increases testosterone levels in pubertal male rats. We aimed to analyze the Pcm reflex activity and fiber type in response to a 30 % sucrose diet. Wistar male rats were assigned into two groups: control and sugar. The Pcm electromyographic activity was recorded during the mechanical stimulation of the scrotal skin and penis. We also determined the relative levels of Glut4 expression, glycogen content, myofiber cross-sectional area (CSA), and the content of glycolytic and oxidative with NADH-TR or fast, intermediate, and slow fibers with alkaline (pH 9.4) ATPase histochemistry. The sugar group showed a short Pcm reflex activity, a higher Glut4 expression, and glycogen content; the CSA fibers showed a significant difference in the percentage of fibers with the different transversal areas. The number of nuclei was positively correlated with the CSA of the Pcm fibers. There was also a decrease in oxidative fibers but an increase in glycolytic fibers, while the content of fast muscle fibers increased to the detriment of intermediate and slow fibers. Thus, a high-sugar diet reduced Pcm reflex activity, fiber type, and dysregulation of skeletal muscle energy metabolism.
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Affiliation(s)
| | - Omar Lara García
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
| | | | - Pablo Pacheco
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México; Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México.
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México; Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México.
| | | | - Jorge Rodríguez-Antolín
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
| | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México; Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México.
| | - Leticia Nicolás-Toledo
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
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Villafañe G, Bazán V, Brandaleze E, López A, Pacheco P, Maratta A. Solid phase extraction of arsenic on modified MWCNT/Fe3O4 magnetic hybrid nanoparticles from copper ores samples with ETAAS determination. Talanta Open 2022. [DOI: 10.1016/j.talo.2022.100149] [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: 11/28/2022] Open
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Heredia B, Tapia R, Young BJ, Hasuoka P, Pacheco P, Roqueiro G. Phytoextraction of Cu, Cd, Zn and As in four shrubs and trees growing on soil contaminated with mining waste. Chemosphere 2022; 308:136146. [PMID: 36030936 DOI: 10.1016/j.chemosphere.2022.136146] [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] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Mining activity has degraded large extensions of soil and its waste is composed of metals, anthropogenic chemicals, and sterile rocks. The use of native species in the recovery of polluted soils improves the conditions for the emergence of other species, tending to a process of ecosystem restoration. The objective of this study was to evaluate the bioaccumulation of metal(loid)s in four species of native plants and the effect of their distribution and bioavailability in soil with waste from an abandoned gold mine. Soil samples were taken from two sites in La Planta, San Juan, Argentina: Site 1 and Site 2 (mining waste and reference soil, respectively). In Site 1, vegetative organ samples were taken from Larrea cuneifolia, Bulnesia retama, Plectrocarpa tetracantha, and Prosopis flexuosa. The concentration of metal(loid)s in soil from Site 1 were Zn > As > Cu > Cd, reaching values of 7123, 6516, 240 and 76 mg kg-1, respectively. The contamination indices were among the highest categories of contamination for all four metal(loid)s. The spatial interpolation analysis showed the effect of the vegetation as the lowest concentration of metal(loid)s were found in rhizospheric soil. The maximum concentrations of As, Cu, Cd and Zn found in vegetative organs were 371, 461, 28, and 1331 mg kg-1, respectively. L. cuneifolia and B. retama presented high concentrations of Cu and Zn. The most concentrated metal(loid)s in P. tetracantha and P. flexuosa were Zn, As and Cu. Cd was the least concentrated metal in all four species. The values of BAF and TF were greater than one for all four species. In conclusion, the different phytoextraction capacities and the adaptations to arid environments of these four species are an advantage for future phytoremediation strategies. Their application contributes to the ecological restoration and risk reduction, allowing the recovery of ecosystem services.
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Affiliation(s)
- Belén Heredia
- Consejo Nacional de Investigación Científica y Técnica (CONICET-CCT San Juan), Facultad de Ingeniería-UNSJ, Av. Libertador Gral. San Martín 1109, 5400, San Juan, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria San Juan, Calle 11 y Vidart, Pocito, 5427, San Juan, Argentina.
| | - Raul Tapia
- Consejo Nacional de Investigación Científica y Técnica (CONICET-CCT San Juan), Facultad de Ingeniería-UNSJ, Av. Libertador Gral. San Martín 1109, 5400, San Juan, Argentina; Universidad Nacional de San Juan, Facultad de Ingeniería (FI-UNSJ), Av. Lib. San Martín (Oeste) 1109, 5400, San Juan, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria San Juan, Calle 11 y Vidart, Pocito, 5427, San Juan, Argentina.
| | - Brian Jonathan Young
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Microbiología y Zoología Agrícola (IMyZA), Las Cabañas y Los Reseros s/n, 1876, Hurlingham, Buenos Aires, Argentina.
| | - Paul Hasuoka
- Instituto de Química San Luis (INQUISAL-CONICET), Chacabuco y Pedernera s/n, 5700, San Luis, Argentina.
| | - Pablo Pacheco
- Instituto de Química San Luis (INQUISAL-CONICET), Chacabuco y Pedernera s/n, 5700, San Luis, Argentina.
| | - Gonzalo Roqueiro
- Universidad Nacional de San Juan, Facultad de Ingeniería (FI-UNSJ), Av. Lib. San Martín (Oeste) 1109, 5400, San Juan, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria San Juan, Calle 11 y Vidart, Pocito, 5427, San Juan, Argentina.
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Werutsky G, Arrieta O, Zukin M, Mathias C, Gelatti A, Kaen D, Cardona A, Cronemberg E, Campos C, Araújo L, de Andrade H, Reichow S, de Lima V, Pacheco P, Coelho J, Borges G, Silva A, Mascarenhas E, Quiroga A, Fein L, de Oliveira F, Pastorello J, Dutra C, Morbeck I, Cruz F, Rebelatto T, Gomes R, Barrios C. EP03.01-003 Clinical Features and Molecular Profile of Advanced Non-small Cell Lung Cancer in Latin America: LATINO Lung (LACOG 0116). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.398] [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: 10/14/2022]
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Pacheco P, Pacheco M, Molini-Avejonas D. Assessment of stress and anxiety during the COVID-19 pandemic in caregivers of children with ASD. Eur Psychiatry 2022. [PMCID: PMC9564259 DOI: 10.1192/j.eurpsy.2022.712] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
An infectious disease such as COVID-19 can have a great impact on mental health due to the fear of contracting it as well as the social isolation itself due to the containment measures. Such events are considered stressors, as they can be perceived as threatening or challenging, and can have cumulative effects that are harmful to mental health. Along with this scenario, anxiety can occur in association with stress, and it is defined as extreme concern and somatic symptoms that generate tension, hindering the proper functioning and development of basic life functions. In people with Autism Spectrum Disorder (ASD) and their families, such events can occur more intensely, as changing routine and adapting to different activities are usually challenging. The study examined stress, anxiety and coping strategies during the pandemic.
Objectives
To analyze stressful events, anxiety and coping strategies in caregivers of children and adolescents with ASD and typical development.
Methods
Forty caregivers of children and adolescents with ASD and 40 of typically developing participated in the study. The assessment instruments used were: 1. RSQ COVID-19; 2. Semi-structured interview; 3. State–Trait Anxiety Inventory for Adults. For statistical analysis, analysis of variance (ANOVA) or chi-square were used.
Results
Caregivers of children and adolescents with ASD showed greater stress and anxiety, in addition to using less adaptive coping strategies.
Conclusions
There is a great need to welcome families of children and adolescents with ASD, helping to develop coping or coping strategies.
Disclosure
No significant relationships.
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Lara-García O, Lara-García M, Nicolás-Toledo L, Sengelaub DR, Pacheco P. Reflex activity of the pubococcygeus muscle is modified throughout the estrous cycle in Wistar rats. Neurosci Lett 2022; 768:136375. [PMID: 34852286 DOI: 10.1016/j.neulet.2021.136375] [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: 09/23/2021] [Revised: 11/09/2021] [Accepted: 11/25/2021] [Indexed: 11/24/2022]
Abstract
Pubococcygeus muscle reflex activity has been reported to be driven by specialized neuronal circuitry, including the participation of spinal cord interneurons. Both the reflex and elements of the circuit are known to be sensitive to gonadal hormones, but studies using female rats have not considered the potential effects of estrous phase. Hence, in the present study we used mechanical stimulation of the clitoris to produce reflex activity, and recorded across the different phases of the estrous cycle, including the dark and light periods during each phase. Afterdischarge activity was observed only during the light and dark periods of proestrus, and during the light period of estrus coincident with the receptivity period in the rat́s reproductive behavior. Moreover, this reflex activity comprises at least five different motor unit groups with different firing patterns that are dependent on gonadal hormones variation.
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Affiliation(s)
- O Lara-García
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Carretera Federal Tlaxcala-Puebla Km. 1.5 CP, 90000 Tlaxcala, Mexico.
| | - M Lara-García
- Instituto de Neuroetología, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n Col, Industrial Animas CP91190, Xalapa, Veracruz, Mexico
| | - L Nicolás-Toledo
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Carretera Federal Tlaxcala-Puebla Km. 1.5 CP, 90000 Tlaxcala, Mexico
| | - D R Sengelaub
- Psychological and Brain Sciences, Indiana University, 1101 E. 10th St. Bloomington, IN 47405-7007, USA
| | - P Pacheco
- Instituto de Neuroetología, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n Col, Industrial Animas CP91190, Xalapa, Veracruz, Mexico; Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito, Mario de La Cueva s/n, C.U., Coyoacán, 04510 Ciudad de México, CDMX, Mexico
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Pokorny B, Pacheco P, de Jong W, Entenmann SK. Forest frontiers out of control: The long-term effects of discourses, policies, and markets on conservation and development of the Brazilian Amazon. Ambio 2021; 50:2199-2223. [PMID: 34637088 PMCID: PMC8507351 DOI: 10.1007/s13280-021-01637-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 03/22/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
With the Brazilian military governments of the 1960s, systematic economic development of the Amazon began. Social and environmental concerns have entered Amazonian discourses and policies only since the 1990s. Since then, reports of threats to forests and indigenous people have alternated with reports of socio-economic progress and environmental achievements. These contradictions often arise from limited thematic, sectoral, temporal, or spatial perspectives, and lead to misinterpretation. Our paper offers a comprehensive picture of discourses, policies, and socio-environmental dynamics for the entire region over the last five decades. We distinguish eight historical policy phases, each of which had little effect on near-linear dynamics of demographic growth and land-use expansion, although some policies showed the potential to change the course of development. To prevent local, national, and international actors from continuing to assert harmful interests in the region, a coherent long-term commitment and change in the collective mindset are needed.
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Affiliation(s)
- Benno Pokorny
- Faculty of Environment and Natural Resources, University of Freiburg (Germany), Tennenbacher Strasse 4, 79106 Freiburg, Germany
| | - Pablo Pacheco
- World Wide Fund for Nature, 1250 24th St NW, Washington, DC 20037 USA
| | - Wil de Jong
- Center for Southeast Asian and Integrated Area Studies, Kyoto University (Japan), 46 Shimoadachichou, Sakyoku, Kyoto, 606-8501 Japan
| | - Steffen Karl Entenmann
- Chair of Silvicutlure, Faculty of Environment and Natural Resources, University of Freiburg (Germany), Tennenbacher Strasse 4, 79106 Freiburg, Germany
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Delsouc MB, Conforti RA, Vitale DL, Alaniz L, Pacheco P, Andujar S, Vallcaneras SS, Casais M. Antiproliferative and antiangiogenic effects of ammonium tetrathiomolybdate in a model of endometriosis. Life Sci 2021; 287:120099. [PMID: 34715139 DOI: 10.1016/j.lfs.2021.120099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 09/11/2021] [Revised: 10/16/2021] [Accepted: 10/25/2021] [Indexed: 10/20/2022]
Abstract
AIMS Copper (Cu) is involved in the endometriosis progression. Herein, an experimental endometriosis model was used to evaluate whether its chelation with ammonium tetrathiomolybdate (TM) affects the proliferation and angiogenesis in endometriotic-like lesions and the participation of oxidative stress in these processes. MAIN METHODS Female C57BL/6 mice were divided into three groups: sham-operated mice, endometriosis-induced mice, and TM-treated endometriosis-induced mice. Each animal in the third group received 0.3 mg of TM/day in their drinking water from the postoperative 15th day. The samples were collected after one month of induced pathology. In peritoneal fluids, Cu and estradiol levels were determined by electrothermal atomic absorption spectrometry and electrochemiluminescence, respectively. Endometriotic-like lesions were processed for the analysis of cell proliferation by PCNA immunohistochemistry, the expression of angiogenic markers by RT-qPCR, the presence of endothelial cells by immunofluorescent staining, and oxidative stress applying spectrophotometric methods. KEY FINDINGS TM treatment decreased Cu and estradiol levels, which were increased by this pathology. In lesions, TM induced: (a) a decrease in tissue weight and volume, (b) a decrease in PCNA-positive cells, (c) antiangiogenic effects by decreasing the number of blood vessels, the mRNA expression of fibroblast growth factor 2 (Fgf2) and platelet-derived growth factor subunit B (Pdgfb), and the presence of endothelial cells, (d) a decrease in antioxidant activity and an increase in lipid peroxidation. SIGNIFICANCE TM is a highly effective antiproliferative and antiangiogenic agent, modulating oxidative imbalance in endometriosis. Its anti-endometriotic potential is an attractive feature of TM as a possible non-hormonal treatment.
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Affiliation(s)
- María Belén Delsouc
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis, Argentina
| | - Rocío Ayelem Conforti
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis, Argentina
| | - Daiana Luján Vitale
- Laboratorio de Microambiente Tumoral, Centro de Investigaciones Básicas y Aplicadas (CIBA), Universidad Nacional del Noroeste de la Provincia de Buenos Aires (UNNOBA), Junín, Buenos Aires, Argentina; Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires (CITNOBA), UNNOBA-UNSAdA-CONICET, Junín, Buenos Aires, Argentina
| | - Laura Alaniz
- Laboratorio de Microambiente Tumoral, Centro de Investigaciones Básicas y Aplicadas (CIBA), Universidad Nacional del Noroeste de la Provincia de Buenos Aires (UNNOBA), Junín, Buenos Aires, Argentina; Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires (CITNOBA), UNNOBA-UNSAdA-CONICET, Junín, Buenos Aires, Argentina
| | - Pablo Pacheco
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto de Química de San Luis (INQUISAL-CONICET), San Luis, Argentina
| | - Sebastián Andujar
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis, Argentina
| | - Sandra Silvina Vallcaneras
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis, Argentina
| | - Marilina Casais
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis, Argentina.
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Gonzalez M, Lajud S, Garraton F, Pacheco P. Laryngeal amyloidosis concealing carcinoma in situ: A management dilemma. Otolaryngology Case Reports 2021. [DOI: 10.1016/j.xocr.2021.100310] [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: 10/21/2022] Open
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Cora Jofre F, Larregui DN, Murcia VN, Pacheco P, Savio M. Infrared assisted digestion used as a simple green sample preparation method for nutrient analysis of animal feed by microwave induced plasma atomic emission spectrometry. Talanta 2021; 231:122376. [PMID: 33965040 DOI: 10.1016/j.talanta.2021.122376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
Based on green analytical chemistry principles it is important to evolve procedures that convert solid samples into solutions without using excessive reagent quantities, energy, temperature, and avoiding waste generation. To reach this aim, a simple infrared assisted digestion (IRAD) method for animal feed analysis was proposed. Infrared radiation (IR) with 2 mL of HNO3 and 2 mL of H2O2 were assessed, presenting low dissolved organic carbon (DOC) and residual acidity (RA) in the final digest, being fully compatible with microwave induced plasma atomic emission spectrometry (MIP OES). Calcium, Cd, Cu, Fe, K, Mg, Na, P, Sr and Zn were determined in reference materials and in animal feeds. Limits of quantification were between 2.52 and 284 mg kg-1 for Ca and P respectively. Recovery values ranged 80-120%, with relative standard deviations (RSD%) under 8%. The friendliness offered by the IRAD MIP OES method was evaluated by two green indexes. Concentrations in feedstuffs were compared with National Research Council (NRC) recommendations.
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Affiliation(s)
- Florencia Cora Jofre
- Facultad Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Av. Uruguay 151, L6300XAI, Santa Rosa, La Pampa, Argentina; Instituto de Ciencias de La Tierra y Ambientales de La Pampa (INCITAP), Mendoza 109, L6302EPA, Santa Rosa, La Pampa, Argentina.
| | - Daiana Natalí Larregui
- Facultad Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Av. Uruguay 151, L6300XAI, Santa Rosa, La Pampa, Argentina
| | - Vanina Nerea Murcia
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria (EEA) Anguil, Ruta Nacional N.o 5, Km 580 (6326), La Pampa, Argentina; Producción Animal. Facultad de Agronomía. Universidad Nacional de La Pampa. Ruta Nacional N 35 Km 334, Santa Rosa, La Pampa, Argentina
| | - Pablo Pacheco
- Instituto de Química de San Luis (INQUISAL), Consejo Nacional de Investigaciones Científicas (CONICET), Universidad Nacional de San Luis (UNSL), Chacabuco y Pedernera, Ciudad de San Luis, 5700, Argentina
| | - Marianela Savio
- Facultad Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Av. Uruguay 151, L6300XAI, Santa Rosa, La Pampa, Argentina; Instituto de Ciencias de La Tierra y Ambientales de La Pampa (INCITAP), Mendoza 109, L6302EPA, Santa Rosa, La Pampa, Argentina.
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Molini-Avejonas D, Pacheco P, Leal C. Children’s mental health and the COVID-19 pandemic. Eur Psychiatry 2021. [PMCID: PMC9479936 DOI: 10.1192/j.eurpsy.2021.1746] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionIn the midst of a global pandemic with a rising death toll, the children´s mental health can be easily overlooked in the country’s response. But this overlook would have devastating consequences for years to come.ObjectivesThe objective of this research is to compare children’s physical and mental development before, during and after the situation of social isolation caused by the pandemic of COVID-19.MethodsThe parents/guardians of 100 children aged between 0 and 5 years and 11 months old were asked to answer questions based on the ASQ-3 (Ages and Stages Questionnaire III), containing questions related to Communication, Gross Motor, Fine Motor, Problem Solving, and Personal-Social and ASQ- SE (Ages and Stages Questionnaires Social-Emotional) addressing issues of self-regulation, compliance, social-communication, adaptive functioning, autonomy, and affect. In addition, behavioral issues related to children’s mental health will be included, such as: aggressiveness, insomnia, lack of appetite, apathy, sadness, tiredness, lack of interest, hyperactivity, manias, tantrum, morning among others. Child development data will be collected before and during quarantine / isolation and later, in a second stage, after the end of social isolation.ResultsThe data will be analyzed in order to characterize child behavior before, during and after the period of social isolation, correlating the different areas of child development, especially mental health.ConclusionsAs argued, socially isolated children are at increased risk of health problems in adulthood. Furthermore, studies on social isolation have demonstrated that a lack of social relationships negatively impacts the development of the brain’s structure.DisclosureNo significant relationships.
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Carrasco-Ruiz Á, Sánchez-García O, Pacheco P, Martínez-Gómez M, Cuevas-Romero E, Castelán F. Differential estrogen-related responses in myofiber cross-sectional area of pelvic floor muscles in female rats. Gynecol Endocrinol 2021; 37:528-533. [PMID: 33501865 DOI: 10.1080/09513590.2021.1875427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To determine the role of estrogens in myofiber cross-sectional area (CSA) of the pubococcyegeus (Pcm) and iliococcygeus muscles (Icm). METHODS In Experiment 1, we excised the Pcm and Icm during the metestrus and proestrus stages of the estrous cycle to measure the myofiber CSA. In Experiment 2, we allocated other rats into the following groups: sham (Sh), ovariectomized (OVX), OVX plus 1,4,6-androstatriene-3,17-dione (ATD; OVX + ATD), an aromatase inhibitor, and OVX plus estradiol benzoate (OVX + EB). We carried out appropriate statistical tests to determine significant differences (p ≤ 0.05) in variables measured for both Experiments. RESULTS The Pcm myofiber CSA at proestrus was higher than at metestrus, while the Icm myofiber CSA did not change. Ovariectomy increased the Pcm myofiber CSA, which was exacerbated with the ATD administration. The EB supplementation successfully reversed the ovariectomy-induced enlargement of the CSA. No significant changes were detected for the Icm myofiber CSA. CONCLUSIONS Fluctuating ovarian steroid levels at the estrus cycle significantly influence the CSA myofiber of the Pcm but not that of the Icm. Estrogen actions, having a gonadal or extragonadal origin, influence importantly the CSA of the Pcm.
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Affiliation(s)
- Ángeles Carrasco-Ruiz
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Octavio Sánchez-García
- Programa Educativo de Química Clínica, Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Pablo Pacheco
- Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
- Depto. de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Tlaxcala, México
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
- Depto. de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Tlaxcala, México
| | - Estela Cuevas-Romero
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
- Depto. de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Tlaxcala, México
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Pacheco P, Molini-Avejonas D. How brazilian parents deal with the development of kids with hearing impairment diagnosis. Eur Psychiatry 2021. [PMCID: PMC9471266 DOI: 10.1192/j.eurpsy.2021.1347] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionWhen parents discover that their child has hearing loss, a new reality presents itself with frustration, a huge amount of work as special care, therapies, exams, etc. Adapting to this new situation is a huge challenge to the development of both parents and children who receive this diagnosis.ObjectivesThis study investigated how Brazilian parents of children diagnosed with hearing loss dealt with this situation from diagnosis to the present day.MethodsIn this study it was used the Bioecological Theory of Human Development, which considers the development of both parents and children over time. Two meetings were conducted using a focal group technique, with questions related to the diagnosis and how they faced the situation, prejudice, care of other siblings, etc.ResultsMost parents discovered the diagnosis of hearing loss of their children right after birth. Only one mother said she did not care about the diagnosis of hearing loss while most reported having suffered a lot and glimpsed a life of difficulties. Even knowing the limitations imposed by the condition of the children, no one considered hearing loss as a sickness. Parents reported that the child suffered bullying because of difficulties in speaking and most parents say they worry about their children’s school life.ConclusionsParenting kids with hearing impairment is challenging, and involves dealing with prejudice, fear of future, long-term therapies and high costs. Nevertheless parents make great efforts to provide a good environment minimizing the risks of having such condition.
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Pacheco P, Pacheco M, Molini-Avejonas D, Mota-Loss A. Adolescents with cleft lip and palate (CLP): Stressful events and coping. Eur Psychiatry 2021. [PMCID: PMC9479787 DOI: 10.1192/j.eurpsy.2021.1936] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionIndividuals with CLP may present communication disorders, velopharyngeal dysfunction, dento-occlusal changes and hearing losses. Adolescents with CLP usually show greater impairment of communication. Such characteristics combined with the malformed face can impact psychosocial functioning and increase the risk of psychological difficulties. Life-stressing experiences from CLP to life events typical of adolescence, may threaten the well-being of the adolescent, and are linked to mental health and behavioral problems.ObjectivesTo verify the coping of adolescents with CLP through a descriptive cross - sectional study.MethodsFifteen adolescents with CLP participated in the study. To evaluate them it was used the Coping scale (Lees, 2007), for the verification of coping in the families proposed by Motivational Theory of Coping. The analysis of the coping of adolescents with CLP considered two adverse contexts, namely “birth with fissure” and “have your secret told by a friend ”.ResultsIn relation to the evaluation of the psychological needs of relationship, competence and autonomy faced the “birth with fissure” indicates that teens with fissures do not perceive this stressor as a threat to their basic psychological needs.ConclusionsThe adolescents with CLP who participated in the study feel more interested (perception of the challenge) in dealing with the stressor relative to the fissure than in dealing with the betrayal of a friend, who reveals a secret of his to other people.DisclosureNo significant relationships.
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Pacheco P, Pacheco M, Marinho D, Oliveira T, Marques A, Souza K, Franco E, Maia J, Silva L, Molini-Avejonas D. Impacts of social distancing during the covid19 pandemic on the development of children with autism in Brazil. Eur Psychiatry 2021. [PMCID: PMC9528258 DOI: 10.1192/j.eurpsy.2021.704] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
COVID-19 is a respiratory disease and its main symptoms are fever, dry cough and difficulty breathing. It spread to several countries, which led the World Health Organization to decree, on March 11, 2020, a pandemic state that deeply affected Brazil. Due to the impossibility of leaving the house, the routine of children with autism was changed. Children in Autism Spectrum Disorder (ASD) have a qualitative deficit in social interaction. Clinical and daily observations reinforce several scientific studies that defend the importance of maintaining a routine as stable as possible for people with ASD, without this stability they may become emotionally disorganized, feel discomfort or even irritability.ObjectivesInvestigate the impact caused by social distancing on the development of children and adolescents with autism.MethodsAn online questionnaire based on the DIR/Floortime basic map of emotional functional capacity development was distributed in Brazil from April to May, 2020. The results were analyzed using SPSS software.ResultsResults obtained from 122 questionnaires showed that after 30 days of quarantine 20% of children no longer had the characteristic of being able to remain calm and organized for at least 2 minutes; 11% no longer initiates interactions with their parents; 27% demonstrated more protests and anger than before the social distancing; 18% demonstrated more emotions such as anger, fear and intimacy, 28% began to understand their limits and 12% of the children are using greater facial expression during the social distancing.ConclusionsThis study brings results that can help to understand the processes in a child with autism.
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Pacheco P, Pacheco M, Molini-Avejonas D. Study of 18 months of follow up dir floortime intervention in preschool children with autism spectrum disorder (ASD). Eur Psychiatry 2021. [PMCID: PMC9475800 DOI: 10.1192/j.eurpsy.2021.1346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Introduction Children in Autism Spectrum Disorder (ASD) have a qualitative deficit in social interaction. The DIR/Floortime (Stanley Greenspan and Serena Wieder) is based on the Child’s Functional Development, Individual Differences and Relationships (D for development, I for individuality or individual differences and R for relationship), aiming at building the foundations for social, emotional and intellectual skills of children. Objectives To determine the results of 18 months DIR/Floortime™ parent training for an additional benefit in encouraging children with ASD climbing the developmental “ladder”. Methods The participants are 15 children with ASD aged between 2 and 6 years-old. The follow-up occurs in two private DIR Floortime Model service centers in Brazil. Protocols: Functional Emotional Assessment Scale – FEAS and Functional Emotional Developmental Questionnaire – FEDQ. The participants were followed-up one on one every four months. Results At the first month of assessment the children showed lack of self regulation, social interaction and engagement with their parents in a symbolic, sensory and motor play setting. At the following evaluations, they showed increase of social interaction and engagement in the same play setting. Besides the high affect of the parents during the play time promoted a two way purpose communication and behavioral organization. Conclusions Children showed a good development of functional and emotional capacities during the study period, demonstrating the effectiveness of the DIR/Floortime model in the intervention.
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De León-Ramírez YM, Lara-García M, Pacheco P, Lara-García O, Martínez-Gómez M, Cuevas-Romero E, Rodríguez-Antolín J, Nicolás-Toledo L. Histomorphological testicular changes and decrease in the sperm count in pubertal rats induced by a high-sugar diet. Ann Anat 2021; 235:151678. [PMID: 33515690 DOI: 10.1016/j.aanat.2021.151678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 10/02/2020] [Revised: 12/01/2020] [Accepted: 12/29/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND During childhood and adolescence, excessive food consumption stimulates adipose tissue expansion promoting overweight in humans, and mice. A high-sucrose diet is related to obesity and metabolic syndrome. Infertility is commonly related to these pathologies. We aim to evaluate possible histomorphological testicular changes induced by a high-sucrose diet on sperm count during the post-weaning period. METHODS Wistar male rats aged 21 days, weaned, were randomly assigned into two groups: control (fed and hydrated normally) and sugar group (fed normally but hydrated with a solution containing 30% of diluted sucrose during 30 days). At the pubertal age of 51 days, animals were killed and blood samples were taken to measure testosterone and leptin. Testicles were collected and gonadal adipose tissue and semen samples from the epididymis were excised. Testicle samples were used for morphological description using H&E staining, as well as to quantify the triacylglycerol content and the lactate dehydrogenase (LDH) expression. Semen samples were used to assess motility, viability, and sperm count. RESULTS The sugar group presented an increase in the testicular weight, but a reduction in the cross-sectional area of seminiferous tubules. Moreover, disorganization of Sertoli cells and spermatogonia, an increase in the LDH expression within the entire seminiferous tubule, and a reduced sperm count and spermatozoid motility were found. These alterations were accompanied by high serum levels of testosterone and leptin. CONCLUSIONS Our results indicate strong damage of testis by sugar consumption during early life that may lead to the onset of infertility in adulthood.
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Affiliation(s)
| | | | - Pablo Pacheco
- Instituto de Neuroetología, Universidad Veracruzana, Veracruz, México; Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México
| | - Omar Lara-García
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Margarita Martínez-Gómez
- Instituto de Neuroetología, Universidad Veracruzana, Veracruz, México; Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México
| | - Estela Cuevas-Romero
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Jorge Rodríguez-Antolín
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Leticia Nicolás-Toledo
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
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Rodríguez-Ramos F, Leiva-Portilla D, Rodríguez-Núñez K, Pacheco P, Briones-Labarca V. Mathematical modeling and quality parameters of Salicornia fruticosa dried by convective drying. J Food Sci Technol 2020; 58:474-483. [PMID: 33568841 DOI: 10.1007/s13197-020-04556-6] [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] [Subscribe] [Scholar Register] [Revised: 04/21/2020] [Accepted: 05/26/2020] [Indexed: 12/26/2022]
Abstract
The effect of convective drying at 50, 60 and 70 °C on the drying kinetics and quality parameters of Salicornia fruticosa was investigated. To estimate the equilibrium moisture content a desorption isotherm was performed using five empirical models: Halsey, Caurie, Henderson, Smith and Oswin. The experimental data was also fitted to different drying kinetic models (Logarithmic, Two-Terms, Midilli-Kucuk and Exponential Two-Terms). A numerical simulation using the Finite Volume Method allowed us to describe the evolution of temperature and moisture content distributions during drying. The Henderson model was found to be the most suitable for predicting the equilibrium moisture content of S. fruticosa, with values of X we in the drying process of 1.51; 1.54 and 1.36 g water/g d.m for 50, 60 and 70 °C, respectively. A good agreement was found between the numerical and experimental results of temperature and moisture during Salicornia drying. The Midilli-Kucuk model presented the best fitting to the drying curves. The effects of drying on S. fruticosa were significant in two quality parameters. Antioxidant capacity decreased in ca. 45% and lightness (> L*) significantly increased at a drying temperature of 70 °C, compared to the fresh samples. The optimum drying temperature where drying time and nutrients loss was minimum was 70 °C. These results can be used to estimate the best drying conditions for producing dehydrated Salicornia. The use of halophytes as sustainable crops is promising, and the vision of their commercial production must be evaluated and considered, given water scarcity in many areas of the planet.
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Affiliation(s)
- F Rodríguez-Ramos
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile
| | - D Leiva-Portilla
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile.,Laboratorio de Tecnología de Enzimas para Bioprocesos, Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile
| | - K Rodríguez-Núñez
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile.,Laboratorio de Tecnología de Enzimas para Bioprocesos, Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile
| | - P Pacheco
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile
| | - V Briones-Labarca
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile.,CEAZA, Centro para Estudios Avanzados en Zonas Áridas, Av. Raúl Bitrán Nachary 1305, Box 599, 1720010 La Serena, Chile
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D’Amato R, Regni L, Falcinelli B, Mattioli S, Benincasa P, Dal Bosco A, Pacheco P, Proietti P, Troni E, Santi C, Businelli D. Current Knowledge on Selenium Biofortification to Improve the Nutraceutical Profile of Food: A Comprehensive Review. J Agric Food Chem 2020; 68:4075-4097. [PMID: 32181658 PMCID: PMC7997367 DOI: 10.1021/acs.jafc.0c00172] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/12/2020] [Accepted: 03/17/2020] [Indexed: 05/05/2023]
Abstract
Selenium (Se) is an important micronutrient for living organisms, since it is involved in several physiological and metabolic processes. Se intake in humans is often low and very seldom excessive, and its bioavailability depends also on its chemical form, with organic Se as the most available after ingestion. The main dietary source of Se for humans is represented by plants, since many species are able to metabolize and accumulate organic Se in edible parts to be consumed directly (leaves, flowers, fruits, seeds, and sprouts) or after processing (oil, wine, etc.). Countless studies have recently investigated the Se biofortification of plants to produce Se-enriched foods and elicit the production of secondary metabolites, which may benefit human health when incorporated into the diet. Moreover, feeding animals Se-rich diets may provide Se-enriched meat. This work reviews the most recent literature on the nutraceutical profile of Se-enriched foods from plant and animal sources.
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Affiliation(s)
- Roberto D’Amato
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Luca Regni
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Beatrice Falcinelli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Simona Mattioli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Paolo Benincasa
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Alessandro Dal Bosco
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Pablo Pacheco
- Instituto
de Química de San Luis, INQUISAL, Centro Científico-Tecnológico
de San Luis (CCT-San Luis), Consejo Nacional
de Investigaciones Científicas − Universidad Nacional
de San Luis, Chacabuco y Pedernera, Ciudad de San Luis 5700, Argentina
| | - Primo Proietti
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Elisabetta Troni
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Claudio Santi
- Department
of Pharmaceutical Sciences, University of
Perugia, Perugia 06123, Italy
| | - Daniela Businelli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
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Méndez-Tepepa M, Zepeda-Pérez D, Espindola-Lozano M, Rodríguez-Castelán J, Arroyo-Helguera O, Pacheco P, Nicolás-Toledo L, Cuevas-Romero E. Hypothyroidism modifies differentially the content of lipids and glycogen, lipid receptors, and intraepithelial lymphocytes among oviductal regions of rabbits. Reprod Biol 2020; 20:247-253. [PMID: 32089504 DOI: 10.1016/j.repbio.2020.02.004] [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: 09/13/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 10/25/2022]
Abstract
Hypothyroidism affects the content of triacylglycerol (TAG), total cholesterol (TC), oxidized lipids, glycogen, and infiltration of immune cells into the ovary and uterus. This study aimed to analyze the impact of hypothyroidism on the lipid content of different regions of the oviduct. Control (n = 6) and hypothyroid (n = 6; 10 mg/kg/day of methimazole in the drinking water for 30 days) adult rabbits were used. In the fimbriae/infundibulum (FIM/INF), ampulla, (AMP), isthmus (IST), and utero-tubal junction (UTJ), the TAG and TC concentrations, presence of oxidized lipid, relative expressions of perilipin A (PLIN A), peroxisome proliferator-activated receptor γ (PPARγ), CAAT/enhancer-binding protein α (C/EBPα), and farnesoid X receptor (FXRα) were analyzed. The content of glycogen and glycans, as well as the infiltration of lymphocytes, were also quantified. In the FIM/INF, hypothyroidism reduced the content of TC, expression of C/EBPα, and presence of glycans while increased the number of intraepithelial lymphocytes. In the AMP and IST-UTJ regions, hypothyroidism increased the content of TAG, oxidized lipids, expression of PPARγ, and glycogen content but decreased the expression of PLIN-A. The FXRα expression in secretory cells of IST-UTJ was higher in the hypothyroid rabbits compared to controls. Additionally, hypothyroidism reduced the C/EBPα expression and the number of intraepithelial lymphocytes in the AMP and IST-UTJ regions, respectively. We demonstrated that the effect of hypothyroidism depends on the oviductal region, possibly associated with different physiological functions specific to each region. These alterations may be related to infertility, tubal disturbances, and ectopic pregnancy observed in hypothyroid women.
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Affiliation(s)
- Maribel Méndez-Tepepa
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Dafne Zepeda-Pérez
- Maestría en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | | | - Julia Rodríguez-Castelán
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico; Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | | | - Pablo Pacheco
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Leticia Nicolás-Toledo
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Estela Cuevas-Romero
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico.
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Corona-Quintanilla DL, López-Juárez R, Pacheco P, Romero-Ortega MI, Castelán F, Martínez-Gómez M. Bladder and urethral dysfunction in multiparous and mature rabbits correlates with abnormal activity of pubococcygeus and bulbospongiosus muscles. Neurourol Urodyn 2020; 39:116-124. [PMID: 31578766 PMCID: PMC9271261 DOI: 10.1002/nau.24176] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/16/2019] [Indexed: 11/11/2023]
Abstract
AIMS To evaluate the combined effect of age and multiparity on the micturition reflex, including pelvic floor muscle activation. METHODS Young and mature nulliparous rabbits were compared to young and mature multiparas (n = 6 per group). Cystometrograms and urethral pressure (UP) were performed while simultaneously recording the electromyogram (EMG) activity of the pubococcygeus and bulbospongiosus muscles to establish their functional correlation to urological function. RESULTS Multiparity and age significantly influence the bladder and UP affecting the voiding efficiency and intercontraction interval. Such interaction also reduced the UP threshold, timing, and duration. Other bladder and urethral variables were predominantly affected only by age. Urodynamic alterations correlated with abnormal patterns or absent EMG activity of the pubococcygeus and bulbospongiosus muscles. CONCLUSIONS The present findings strongly suggest that multiparity and age affects specific pelvic floor muscle reflex activation during micturition, and may contribute to alterations in bladder and urethral function. This data broadens our understanding of the critical role of the appropriate activity of the individual pelvic floor muscles in micturition.
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Affiliation(s)
| | - Rhode López-Juárez
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Pablo Pacheco
- Instituto de Investigaciones Biomédicas, Departamento de Biología Celular y Fisiología, Universidad Nacional Autónoma de México, Ciudad de México, México
- Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
| | | | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
- Instituto de Investigaciones Biomédicas, Departamento de Biología Celular y Fisiología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
- Instituto de Investigaciones Biomédicas, Departamento de Biología Celular y Fisiología, Universidad Nacional Autónoma de México, Ciudad de México, México
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Anderson CM, Weber CL, Fabricius C, Glew L, Opperman JJ, Pacheco P, Pendleton LH, Thau D, Vermeulen SJ, Shaw MR. Planning for Change: Conservation-Related Impacts of Climate Overshoot. Bioscience 2019. [DOI: 10.1093/biosci/biz141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
| | | | - Christo Fabricius
- World Wildlife Fund, Washington, DC
- Sustainability Research Unit of Nelson Mandela University, George, South Africa
| | | | | | | | - Linwood H Pendleton
- World Wildlife Fund, Washington, DC
- Duke University, Durham, North Carolina
- Global Change Institute, the University of Queensland, St Lucia, Australia
- University of Brest, Plouzane, France
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Immerzeel WW, Lutz AF, Andrade M, Bahl A, Biemans H, Bolch T, Hyde S, Brumby S, Davies BJ, Elmore AC, Emmer A, Feng M, Fernández A, Haritashya U, Kargel JS, Koppes M, Kraaijenbrink PDA, Kulkarni AV, Mayewski PA, Nepal S, Pacheco P, Painter TH, Pellicciotti F, Rajaram H, Rupper S, Sinisalo A, Shrestha AB, Viviroli D, Wada Y, Xiao C, Yao T, Baillie JEM. Importance and vulnerability of the world’s water towers. Nature 2019; 577:364-369. [DOI: 10.1038/s41586-019-1822-y] [Citation(s) in RCA: 477] [Impact Index Per Article: 95.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 11/11/2019] [Indexed: 11/09/2022]
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Vidal S, Brandi N, Pacheco P, Maynou J, Fernandez G, Xiol C, Pascual-Alonso A, Pineda M, Armstrong J, Garcia-Cazorla À, del Carmen Serrano Munuera M, García SC, Troncoso M, Fariña G, García Peñas JJ, Fournier BG, León SR, Guitart M, Baena N, de Nanclares GP, Oci IO, Gutiérrez-Delicado E, Abarrategui B, Barroso E, Santos-Simarro F, Lapunzina P, García FJ, Acedo JM, García A, Martinez MA, Martínez-Bermejo A. The most recurrent monogenic disorders that overlap with the phenotype of Rett syndrome. Eur J Paediatr Neurol 2019; 23:609-620. [PMID: 31105003 DOI: 10.1016/j.ejpn.2019.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/12/2019] [Accepted: 04/28/2019] [Indexed: 12/30/2022]
Abstract
Rett syndrome (RTT) is an early-onset neurodevelopmental disorder that is caused by mutations in the MECP2 gene; however, defects in other genes (CDKL5 and FOXG1) can lead to presentations that resemble classic RTT, although they are not completely identical. Here, we attempted to identify other monogenic disorders that share features of RTT. A total of 437 patients with a clinical diagnosis of RTT-like were studied; in 242 patients, a custom panel with 17 genes related to an RTT-like phenotype was run via a HaloPlex-Target-Enrichment-System. In the remaining 195 patients, a commercial TruSight-One-Sequencing-Panel was analysed. A total of 40 patients with clinical features of RTT had variants which affect gene function in six genes associated with other monogenic disorders. Twelve patients had variants in STXBP1, nine in TCF4, six in SCN2A, five in KCNQ2, four in MEF2C and four in SYNGAP1. Genetic studies using next generation sequencing (NGS) allowed us to study a larger number of genes associated with RTT-like simultaneously, providing a genetic diagnosis for a wider group of patients. These new findings provide the clinician with more information and clues that could help in the prevention of future symptoms or in pharmacologic therapy.
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Affiliation(s)
- S Vidal
- Sant Joan de Déu Research Foundation, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain
| | - N Brandi
- School of Medicine, Universitat de Barcelona, Barcelona, Spain
| | - P Pacheco
- Molecular and Genetics Medicine Section, Hospital Sant Joan de Déu, Barcelona, Spain
| | - J Maynou
- Molecular and Genetics Medicine Section, Hospital Sant Joan de Déu, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain
| | - G Fernandez
- Molecular and Genetics Medicine Section, Hospital Sant Joan de Déu, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain
| | - C Xiol
- Sant Joan de Déu Research Foundation, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain
| | - A Pascual-Alonso
- Sant Joan de Déu Research Foundation, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain
| | - M Pineda
- Sant Joan de Déu Research Foundation, Barcelona, Spain
| | | | - J Armstrong
- Molecular and Genetics Medicine Section, Hospital Sant Joan de Déu, Barcelona, Spain; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona, Spain; CIBER-ER (Biomedical Network Research Center for Rare Diseases), Institute of Health Carlos III (ISCIII), Madrid, Spain.
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Lopez R, Escudero L, D’Amato R, Businelli D, Trabalza-Marinucci M, Cerutti S, Pacheco P. Optimisation of microwave-assisted acid hydrolysis for the determination of seleno-amino acids bound to proteins in powdered milk, lyophilized milk and infant formula. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.03.016] [Citation(s) in RCA: 1] [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] [Indexed: 10/27/2022]
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Navarro D, Alvarado M, Figueroa A, Gonzalez-Liencres C, Salas-Lucia F, Pacheco P, Sanchez-Vives MV, Berbel P. Distribution of GABAergic Neurons and VGluT1 and VGAT Immunoreactive Boutons in the Ferret ( Mustela putorius) Piriform Cortex and Endopiriform Nucleus. Comparison With Visual Areas 17, 18 and 19. Front Neuroanat 2019; 13:54. [PMID: 31213994 PMCID: PMC6554450 DOI: 10.3389/fnana.2019.00054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 10/27/2018] [Accepted: 05/14/2019] [Indexed: 12/12/2022] Open
Abstract
We studied the cellular organization of the piriform network [comprising the piriform cortex (PC) and endopiriform nucleus (EP)] of the ferret (Mustela putorius)-a highly excitable region prone to seizures-and, more specifically, the distribution and morphology of different types of gamma-aminobutyric acid (GABA)ergic neurons, and the distribution and ratio of glutamatergic and GABAergic boutons, and we compared our findings to those in primary visual area 17, and secondary areas 18 and 19. We accomplished this by using cytochrome oxidase and immunohistochemistry for mature neuronal nuclei (NeuN), GABAergic neurons [glutamic acid decarboxylase-67 (GAD67), calretinin (CR) and parvalbumin (PV)], and for excitatory (vesicular glutamate transporter 1; VGluT1) and inhibitory (vesicular GABA transporter; VGAT) boutons. In the ferret, the cellular organization of the piriform network is similar to that described in other species such as cats, rats and opossums although some differences also exist. GABAergic immunolabeling showed similarities between cortical layers I-III of the PC and visual areas, such as the relative distribution of GABAergic neurons and the density and area of VGluT1- and VGAT-immunoreactive boutons. However, multiple differences between the piriform network and visual areas (layers I-VI) were found, such as the percentage of GABAergic neurons with respect to the total number of neurons and the ratio of VGluT1- and VGAT-immunoreactive boutons. These findings are relevant to better understand the high excitability of the piriform network.
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Affiliation(s)
- Daniela Navarro
- Departamento de Histología y Anatomía, Facultad de Medicina, Universidad Miguel Hernández (UMH), Alicante, Spain.,Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Mayvi Alvarado
- Departamento de Histología y Anatomía, Facultad de Medicina, Universidad Miguel Hernández (UMH), Alicante, Spain.,Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Instituto de Neurociencias, UMH-Consejo Superior de Investigaciones Científicas (CSIC), Alicante, Spain
| | | | - Cristina Gonzalez-Liencres
- Àrea Neurociència de Sistemes, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Federico Salas-Lucia
- Departamento de Histología y Anatomía, Facultad de Medicina, Universidad Miguel Hernández (UMH), Alicante, Spain
| | - Pablo Pacheco
- Instituto de Neurociencias, UMH-Consejo Superior de Investigaciones Científicas (CSIC), Alicante, Spain
| | - Maria V Sanchez-Vives
- Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Àrea Neurociència de Sistemes, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Generalitat de Catalunya, Barcelona, Spain
| | - Pere Berbel
- Departamento de Histología y Anatomía, Facultad de Medicina, Universidad Miguel Hernández (UMH), Alicante, Spain.,Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
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Valado A, Sousa J, Gomes V, Pacheco P, Patrício C, Constantino F, Castro M, Gonçalves R, Cavalheiro L, Martins A, Figueiredo J, Osório N, Caseiro A, Gabriel A. Aging, exercise, enzymatic activity and health. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz034.066] [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: 11/14/2022] Open
Affiliation(s)
- A Valado
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| | - J Sousa
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - V Gomes
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - P Pacheco
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - C Patrício
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - F Constantino
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - M Castro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - R Gonçalves
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - L Cavalheiro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Martins
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - J Figueiredo
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - N Osório
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Caseiro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Gabriel
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
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Abstract
The capacity of Elodea canadensis to phytofiltrate arsenic species from water was evaluated. Plants were adapted to tap water and supplemented with 15 and 250 µg L-1 of As. Inorganic arsenic species (As III, As V), and organic arsenic compounds: monomethylarsonate (MMA) and dimethylarsinate (DMA) were analyzed. Sampling was carried out at different times after exposure in culture water and plant organs. Plants exposed to 15 µg L-1 of As concentration showed no significant difference on As concentration (95% confidence level) in their organs compared to controls. When plants were exposed to 250 µg L-1 of As concentration, a significant increase of As concentration in plant organs was observed. After 1 h exposure, plants reduce 63.16% the As concentration in the culture water, with a bioaccumulation factor (BF) of 4.3. Under these conditions, E. canadensis accumulate As V in roots and do not translocate it to stems (transfer factor <1). MMA was determined in stems and leaves. E. canadensis effectively phytofiltrate As from tap water of a city located in an arsenic endemic area from concentrations of 36 µg L-1 to undetectable levels (10 ng L-1).
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Affiliation(s)
- Patricio Picco
- a Facultad Regional Trenque Lauquen , Universidad Tecnológica Nacional , Buenos Aires , Argentina
| | - Paul Hasuoka
- b Instituto de Química de San Luis, INQUISAL, Centro Científico-Tecnológico de San Luis (CCT-San Luis), Consejo Nacional de Investigaciones Científicas , Universidad Nacional de San Luis , Ciudad de San Luis , Argentina
| | - Ernesto Verni
- b Instituto de Química de San Luis, INQUISAL, Centro Científico-Tecnológico de San Luis (CCT-San Luis), Consejo Nacional de Investigaciones Científicas , Universidad Nacional de San Luis , Ciudad de San Luis , Argentina
| | - Marianela Savio
- c Instituto de Ciencias de la Tierra y Ambientales de La Pampa INCITAP-CONICET-UNLPam Departamento de Química Facultad de Ciencias Exactas y Naturales , Universidad Nacional De La Pampa , Santa Rosa , La Pampa , Argentina
| | - Pablo Pacheco
- b Instituto de Química de San Luis, INQUISAL, Centro Científico-Tecnológico de San Luis (CCT-San Luis), Consejo Nacional de Investigaciones Científicas , Universidad Nacional de San Luis , Ciudad de San Luis , Argentina
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Carrasco-García AA, Camacho MA, Pacheco P, Carrillo P, Coria-Avila GA, Paredes-Ramos P. Artificial vagino-cervical stimulation modifies the frequency of uterine contractions during the estrous cycle of the female rat. EB 2019. [DOI: 10.25009/eb.v10i25.2566] [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] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Las contracciones uterinas (CU) pueden participar en importantes procesos reproductivos, como el transporte de espermatozoides y el parto. La evidencia indica que las CU pueden ser inducidas por hormonas y estimulación vaginocervical (EVC) a través de vías neuroendocrinas, incluida la actividad de las glándulas pituitaria y ovarios. Evaluamos la frecuencia de CU después de la EVC en diferentes fases del ciclo estral (CE) en ratas hembras adultas. Treinta y seis ratas hembras fueron anestesiadas, y sus cuernos uterinos fueron expuestos a través de una incisión abdominal. La EVC incluyó intromisiones vaginocervicales (IVC) y distensión vaginal mediante la inserción de un tapón de silicón para imitar los efectos del tapón posteyaculatorio. El número de CU se midió: 1) antes y después de las IVC, 2) durante la distensión vaginal por el tapón de silicón, y después de que se retiró. Comparamos el efecto de la EVC en la cantidad de CU durante las diferentes etapas de la CE de ratas. Los resultados indicaron que la frecuencia de la CU basal fue mayor durante el proestro tardío y menor durante el diestro. Además, las intromisiones dieron como resultado una mayor actividad uterina. La EVC aumentó el número de contracciones durante todas las fases de la CE, excepto durante el diestro. Discutimos el papel de las hormonas y la estimulación sexual en la CU, y su posible implicación en los procesos reproductivos de las hembras.
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Gaveau DL, Locatelli B, Salim MA, Yaen H, Pacheco P, Sheil D. Rise and fall of forest loss and industrial plantations in Borneo (2000–2017). Conserv Lett 2018. [DOI: 10.1111/conl.12622] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- David L.A. Gaveau
- Center for International Forestry Research P.O. Box 0113 BOCBD Bogor Indonesia
| | - Bruno Locatelli
- Center for International Forestry Research P.O. Box 0113 BOCBD Bogor Indonesia
| | - Mohammad A. Salim
- Center for International Forestry Research P.O. Box 0113 BOCBD Bogor Indonesia
| | - Husna Yaen
- Center for International Forestry Research P.O. Box 0113 BOCBD Bogor Indonesia
| | - Pablo Pacheco
- Center for International Forestry Research P.O. Box 0113 BOCBD Bogor Indonesia
- World Wildlife Fund 1250 24th Street NW Washington DC
| | - Douglas Sheil
- Department of Ecology and Natural Resource Management (INA) Norwegian University of Life Science (NMBU) Norway
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Gonzalez F, Sanchez-Salorio M, Pacheco P. Simultaneous Bilateral “Malignant Glaucoma” Attack in a Patient with no Antecedent Eye Surgery or Miotics. Eur J Ophthalmol 2018; 2:91-3. [PMID: 1498573 DOI: 10.1177/112067219200200208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Malignant glaucoma is a term commonly used to describe a condition characterized by a sudden increase in intraocular pressure, usually occuring after eye surgery. This report describes a case of malignant glaucoma simultaneously presenting in both eyes, with no antecedent eye disease, medication or surgery. As far as we know this is the first report of spontaneous bilateral glaucoma. Both eyes were operated on according to the technique described by Chandler et al. (1), and the condition was solved. We suggest that, despite its rarity in eyes with no antecedent disease or ocular therapy, a surgeon should be aware of this condition.
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Affiliation(s)
- F Gonzalez
- Department of Ophthalmology, School of Medicine, University of Santiago, Spain
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Lara-García O, Lara-García M, Perez-Hernandez D, Cuevas E, Martínez-Gómez M, Pacheco P. Spinal cord neuronal components involved in the reflex activity of female rat pubococcygeus motoneurons. Neurosci Lett 2018; 670:105-109. [PMID: 29391219 DOI: 10.1016/j.neulet.2018.01.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/01/2017] [Revised: 01/22/2018] [Accepted: 01/24/2018] [Indexed: 12/01/2022]
Abstract
Evoked EMG reflex activity from the pubococcygeus muscle of female Wistar rats has been reported, but has not been carefully analyzed. Here, we studied this reflex activity through mechanical stimulation of the clitoris, perigenital skin, caudal vagina and foot, all of which produced bilateral reflex multiunit electromyographic (MEMG) tonic "on" activity and displayed a rapid adaptation. However, deep vagina and cervical stimulation did not modify MEMG baseline activity even if it was combined with clitoris, perigenital skin and foot stimulation. Electrical stimulation of the dorsal nerve of the clitoris produced bilateral MEMG activity that when recorded at fast sweep speed, it was possible to observe that the ipsilateral response had an 8 ms latency, while the contralateral response had a 10 ms latency. These data suggest that bilateral reflex activation of pubococcygeus muscle motoneurons is produced by several sensory sources in which a specialized neural circuitry of afferent and efferent components and several spinal cord interneurons are involved. This is in accordance with the multi functionality of this muscle in reproductive and behavioral processes.
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Affiliation(s)
- O Lara-García
- Centro de Investigaciones Cerebrales, Universidad Veracruzana, Médicos y Odontólogos s/n, CP 91130 Xalapa, Veracruz, Mexico.
| | - M Lara-García
- Instituto de Neuroetología, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n, CP 91190, Xalapa, Veracruz, Mexico.
| | - D Perez-Hernandez
- Instituto de Neuroetología, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n, CP 91190, Xalapa, Veracruz, Mexico.
| | - E Cuevas
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Carretera Federal Tlaxcala-Puebla Km. 1.5, CP 90000 Tlaxcala, Mexico.
| | - M Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Carretera Federal Tlaxcala-Puebla Km. 1.5, CP 90000 Tlaxcala, Mexico.
| | - P Pacheco
- Instituto de Neuroetología, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n, CP 91190, Xalapa, Veracruz, Mexico; Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, CP 04510 Coyoacan, D.F., Mexico.
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Spisso A, Verni E, Nahan K, Martinez L, Landero J, Pacheco P. The metabolic effects of mercury during the biological cycle of vines (Vitis vinifera). Biometals 2018; 31:243-254. [PMID: 29508101 DOI: 10.1007/s10534-018-0084-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/23/2017] [Accepted: 02/10/2018] [Indexed: 10/17/2022]
Abstract
Mercury (Hg) is a major environmental pollutant that can be disposed to the environment by human activities, reaching crops like vineyards during irrigation with contaminated waters. A 2-year study was performed to monitor Hg variations during reproductive and vegetative stages of vines after Hg supplementation. Variations were focused on total Hg concentration, the molecular weight of Hg fractions and Hg-proteins associations in roots, stems and leaves. Total Hg concentrations increased during reproductive stages and decreased during vegetative stages. Variations in length of these stages were observed, according to an extension of the vegetative period. Six months post Hg administration, in roots, stems and leaves, initial Hg proteic fractions of 200 kDa were catabolized to 66 kDa fractions according to a transition from reproductive to vegetative stages. However, 24 months after Hg supplementation, the 66 kDa Hg proteic fraction was continuously determined in a prolonged senescence. Accordingly, the identified proteins associated to Hg show catabolic functions such as endopeptidases, hydrolases, glucosidases and nucleosidases. Stress associated proteins, like peroxidase and chitinase were also found associated to Hg. During the reproductive periods of vines, Hg was associated to membrane proteins, such as ATPases and lipid transfer proteins, especially in roots where Hg is absorbed.
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Affiliation(s)
- Adrián Spisso
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Ernesto Verni
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Keaton Nahan
- Department of Chemistry, University of Cincinnati/Agilent Technologies, Metallomics Center of the Americas, University of Cincinnati, Cincinnati, USA
| | - Luis Martinez
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Julio Landero
- Department of Chemistry, University of Cincinnati/Agilent Technologies, Metallomics Center of the Americas, University of Cincinnati, Cincinnati, USA
| | - Pablo Pacheco
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina.
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Fernandes SM, Pires AR, Matoso P, Ferreira C, Nunes-Cabaço H, Correia L, Valadas E, Poças J, Pacheco P, Veiga-Fernandes H, Foxall RB, Sousa AE. HIV-2 infection is associated with preserved GALT homeostasis and epithelial integrity despite ongoing mucosal viral replication. Mucosal Immunol 2018; 11:236-248. [PMID: 28513595 DOI: 10.1038/mi.2017.44] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 04/10/2017] [Indexed: 02/04/2023]
Abstract
The mechanisms that enable preservation of gut mucosal integrity during persistent viral replication and inherent inflammation remain unclear. Here, we investigated, for the first time, gut homeostasis in HIV-2 infection, a naturally occurring form of attenuated HIV disease. We found viral replication in both sigmoid and ileum of asymptomatic HIV-2+ patients (range: 240-851 circulating CD4+T-cells per μl) despite their undetectable viremia, accompanied by interferon-γ-producing CD8 T-cell expansion, irrespective of antiretroviral treatment. Nevertheless, there was no CD4 T-cell depletion, and Foxp3+ and IL-17- or IL-22-producing CD4 T-cell numbers were unaffected. Moreover, IL-22-producing innate lymphoid cells and IL-22-induced antimicrobial peptides and mucins were maintained. In agreement, the epithelium histology was preserved, including tight junction protein zonula occludens (ZO-1) levels. Furthermore, in vitro infection of colon epithelia with primary isolates revealed no HIV-2 impact on ZO-1 expression. Notably, sigmoid transcriptional levels of CCL20 and CCL28 were significantly increased, in direct correlation with GM-CSF, indicating a local response able to enhance CD4 T-cell recruitment. In conclusion, maintenance of mucosal integrity in HIV-2 infection was associated with T-cell recruitment responses, potentially counteracting CD4 T-cell depletion due to HIV-2 replication. These data have unique implications for the design of therapies targeting gut homeostasis in HIV-1 infection and other chronic inflammatory settings.
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Affiliation(s)
- S M Fernandes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Hospital de Santa Maria, Centro Hospitalar Lisboa Norte-EPE, Lisboa, Portugal
| | - A R Pires
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - P Matoso
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - C Ferreira
- Hospital de Santa Maria, Centro Hospitalar Lisboa Norte-EPE, Lisboa, Portugal
| | - H Nunes-Cabaço
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - L Correia
- Hospital de Santa Maria, Centro Hospitalar Lisboa Norte-EPE, Lisboa, Portugal
| | - E Valadas
- Hospital de Santa Maria, Centro Hospitalar Lisboa Norte-EPE, Lisboa, Portugal
- Clínica Universitária de Doenças Infecciosas, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - J Poças
- Serviço de Infecciologia, Hospital de S. Bernardo, Setúbal, Portugal
| | - P Pacheco
- Serviço de Infecciologia, Hospital Fernando da Fonseca, Amadora, Portugal
| | - H Veiga-Fernandes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - R B Foxall
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - A E Sousa
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Da Silva C, Werutsky G, Gelatti A, Tsukazan MR, Lenz G, Sgnaolin V, Rosa M, D'Avila R, Filho PN, Pacheco P, Pinto JF, Rios J, Sostruznik M, Zaffaroni F, Fay AP. P3.16-034 Impact of Travel Distance to Treatment Institution on Survival from Stage I to III Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1840] [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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Lara-García M, Alvarado M, Cuevas E, Lara-García O, Sengelaub DR, Pacheco P. Hormonal Treatment Effects on the Cross-sectional Area of Pubococcygeus Muscle Fibers After Denervation and Castration in Male Rats. Anat Rec (Hoboken) 2017; 300:1327-1335. [PMID: 28176462 DOI: 10.1002/ar.23565] [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: 04/05/2016] [Revised: 07/01/2016] [Accepted: 08/22/2016] [Indexed: 11/07/2022]
Abstract
We explore the interaction of muscle innervation and gonadal hormone action in the pubococcygeus muscle (Pcm) after castration and hormone replacement. Male Wistar rats were castrated and the Pcm was unilaterally denervated; after 2 or 6 weeks, the cross-sectional area (CSA) of Pcm fibers was assessed. Additional groups of castrated rats were used to examine the effects of hormone replacement. At 2 weeks post surgeries, rats were implanted with Silastic capsules containing either dihydrotestosterone (DHT), estradiol benzoate (EB) or both hormones, and the CSA of Pcm fibers was assessed after 4 weeks of hormone treatment. At 2 weeks post surgeries, gonadectomy without hormone replacement resulted in reductions in the CSA of Pcm fibers, and denervation combined with castration increased the magnitude of this effect; further reductions in CSA were present at 6 weeks post surgeries, but again denervation combined with castration increased the magnitude of this effect. Hormone replacement with DHT resulted in hypertrophy in the CSA of nondenervated muscles compared to those of intact normal males, but this effect was attenuated in denervated muscles. Hormone replacement with EB treatment prevented further castration-induced reductions in CSA of nondenervated muscles, but denervation prevented this effect. Similar to that seen with treatment with EB alone, combined treatment with both DHT and EB prevented further reductions in CSA of Pcm fibers in nondenervated muscles, but again denervation attenuated this effect. Thus, while hormone replacement can reverse or prevent further castration-induced atrophy of Pcm fibers, these effects are dependent on muscle innervation. Anat Rec, 300:1327-1335, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Miguel Lara-García
- Departamento de Neurofisiología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
- Departamento de Endocrinología, Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Mayvi Alvarado
- Departamento de Neurofisiología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Estela Cuevas
- Departamento de Endocrinología, Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Omar Lara-García
- Departamento de Neurofisiología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Dale R Sengelaub
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana
| | - Pablo Pacheco
- Departamento de Neurofisiología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, DF, México
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Gaveau DLA, Sheil D, Husnayaen, Salim MA, Arjasakusuma S, Ancrenaz M, Pacheco P, Meijaard E. Rapid conversions and avoided deforestation: examining four decades of industrial plantation expansion in Borneo. Sci Rep 2016; 6:32017. [PMID: 27605501 PMCID: PMC5015015 DOI: 10.1038/srep32017] [Citation(s) in RCA: 237] [Impact Index Per Article: 29.6] [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: 10/14/2015] [Accepted: 06/30/2016] [Indexed: 11/16/2022] Open
Abstract
New plantations can either cause deforestation by replacing natural forests or avoid this by using previously cleared areas. The extent of these two situations is contested in tropical biodiversity hotspots where objective data are limited. Here, we explore delays between deforestation and the establishment of industrial tree plantations on Borneo using satellite imagery. Between 1973 and 2015 an estimated 18.7 Mha of Borneo's old-growth forest were cleared (14.4 Mha and 4.2 Mha in Indonesian and Malaysian Borneo). Industrial plantations expanded by 9.1 Mha (7.8 Mha oil-palm; 1.3 Mha pulpwood). Approximately 7.0 Mha of the total plantation area in 2015 (9.2 Mha) were old-growth forest in 1973, of which 4.5-4.8 Mha (24-26% of Borneo-wide deforestation) were planted within five years of forest clearance (3.7-3.9 Mha oil-palm; 0.8-0.9 Mha pulpwood). This rapid within-five-year conversion has been greater in Malaysia than in Indonesia (57-60% versus 15-16%). In Indonesia, a higher proportion of oil-palm plantations was developed on already cleared degraded lands (a legacy of recurrent forest fires). However, rapid conversion of Indonesian forests to industrial plantations has increased steeply since 2005. We conclude that plantation industries have been the principle driver of deforestation in Malaysian Borneo over the last four decades. In contrast, their role in deforestation in Indonesian Borneo was less marked, but has been growing recently. We note caveats in interpreting these results and highlight the need for greater accountability in plantation development.
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Affiliation(s)
- David L A Gaveau
- Center for International Forestry Research, P.O. Box 0113 BOCBD, Bogor 16000, Indonesia
| | - Douglas Sheil
- Department of Ecology and Natural Resource Management (INA), Norwegian University of Life Science (NMBU), Box 5003, 1432 Ås, Norway
| | - Husnayaen
- Center for International Forestry Research, P.O. Box 0113 BOCBD, Bogor 16000, Indonesia
| | - Mohammad A Salim
- Center for International Forestry Research, P.O. Box 0113 BOCBD, Bogor 16000, Indonesia
| | | | - Marc Ancrenaz
- Borneo Futures project, People and Nature Consulting International, Ciputat, Jakarta, 15412, Indonesia
- HUTAN, Kinabatangan Orang-utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Pablo Pacheco
- Center for International Forestry Research, P.O. Box 0113 BOCBD, Bogor 16000, Indonesia
| | - Erik Meijaard
- Borneo Futures project, People and Nature Consulting International, Ciputat, Jakarta, 15412, Indonesia
- School of Biological Sciences, University of Queensland, Brisbane, QLD 4072, Australia
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Torres S, Gil R, Silva MF, Pacheco P. Determination of seleno-amino acids bound to proteins in extra virgin olive oils. Food Chem 2015; 197:400-5. [PMID: 26616967 DOI: 10.1016/j.foodchem.2015.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 06/26/2015] [Revised: 09/22/2015] [Accepted: 10/01/2015] [Indexed: 12/12/2022]
Abstract
An analytical method has been developed to determine seleno-amino acids in proteins extracted from extra virgin olive oils (EVOOs). Different aqueous/organic solvents were tested to isolate proteins, an acetone:n-hexane combination being the best protein precipitant. In a first dimension chromatography, extracted proteins were analysed by size exclusion chromatography (SEC) coupled to inductively coupled plasma mass spectrometry (ICP-MS) to identify S and Se associations as proteins marker. Two fractions of 66 kDa (A) and 443 kDa (B) were identified. These fractions were submitted to microwave-assisted acid hydrolysis (MAAH) to release seleno-amino acids. In a second dimension chromatography seleno-amino acids were determined by reversed-phase chromatography (RPC) coupled to ICP-MS. Seleno-methylselenocysteine was determined with values ranging from 1.03-2.03±0.2 μg kg(-1) and selenocysteine at a concentration of 1.47±0.1 μg kg(-1). Variations of protein and seleno-amino acid concentrations were observed between EVOO varieties, contributing to EVOO cultivar differentiation.
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Affiliation(s)
- Sabier Torres
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Raul Gil
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - María Fernanda Silva
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Almirante Brown 500, Chacras de Coria CP 5505, Mendoza, Argentina.
| | - Pablo Pacheco
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina.
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Juárez R, Zempoalteca R, Pacheco P, Lucio RA, Medel A, Cruz Y. Activity of the external urethral sphincter evoked by genital stimulation in male rats. Neurourol Urodyn 2015; 35:914-919. [DOI: 10.1002/nau.22850] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 07/22/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Raúl Juárez
- Doctorado en Ciencias Biológicas; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - René Zempoalteca
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - Pablo Pacheco
- Instituto de Investigaciones Biomédicas; UNAM; D.F. México
| | - Rosa Angélica Lucio
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - Alfonso Medel
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - Yolanda Cruz
- Doctorado en Ciencias Biológicas; Universidad Autónoma de Tlaxcala; Tlaxcala México
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala México
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Cruz Y, Juárez R, Medel A, Corona-Quintanilla DL, Pacheco P, Juárez M. Coital Urinary Incontinence Induced by Impairment of the Dorsal Nerve of the Clitoris in Rats. J Urol 2015. [PMID: 26196732 DOI: 10.1016/j.juro.2015.06.105] [Citation(s) in RCA: 9] [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] [Indexed: 11/17/2022]
Abstract
PURPOSE We determined the effect of chronic bilateral neurectomy of the dorsal nerve of the clitoris on urinary parameters and sexual behavior of conscious female rats. MATERIALS AND METHODS A total of 18 anesthetized virgin female Wistar rats were used in this study, including 11 that underwent bilateral neurectomy of the dorsal nerve of the clitoris and 7 that underwent sham surgery. Urinary parameters were determined in awake animals preoperatively, and 3 and 10 days postoperatively. Sexual behavior was tested 14 days postoperatively to determine whether the females expelled urine during sexual encounters. After male ejaculation the females were anesthetized with urethane to record external urethral sphincter electromyogram activity in response to clitoris, perigenital skin and vaginal stimulation. Neurectomy was corroborated anatomically. RESULTS Sham surgery did not significantly modify urinary parameter values. However, bilateral neurectomy of the dorsal nerve of the clitoris significantly increased voiding frequency and voiding duration (p <0.05). It did not significantly affect the flow rate, voided volume or voiding interval. Of females that underwent bilateral neurectomy of the dorsal nerve of the clitoris 67% expelled urine just after male ejaculation. CONCLUSIONS These results suggest that the pudendal nerve is an important neural pathway in the convergence and crosstalk of female urogenital neural circuits, and genital deafferentation may be a causal factor of coital urinary incontinence. Rats with bilateral transection of the dorsal nerve of the clitoris may serve as an animal model of coital incontinence.
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Affiliation(s)
- Yolanda Cruz
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
| | - Raúl Juárez
- Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Alfonso Medel
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | | | - Pablo Pacheco
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Distrito Federal, México
| | - Margarita Juárez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
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de los Ángeles Carrasco-Ruiz M, García-Villamar V, López-García K, Sánchez-García O, Pacheco P, Cuevas E, Martínez-Gómez M, Castelán F. Aromatase expression is linked to estrogenic sensitivity of periurethral muscles in female rabbits. Cell Biochem Funct 2015; 33:188-95. [DOI: 10.1002/cbf.3102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 03/08/2015] [Accepted: 03/09/2015] [Indexed: 12/30/2022]
Affiliation(s)
- María de los Ángeles Carrasco-Ruiz
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
- Doctorado en Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - Verónica García-Villamar
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
- Doctorado en Ciencias Biológicas; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - Kenia López-García
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
- Maestría en Ciencias Biológicas; Universidad Autónoma de Tlaxcala; Tlaxcala México
| | - Octavio Sánchez-García
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
- Doctorado en Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - Pablo Pacheco
- Depto de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas; Universidad Nacional Autónoma de México; México DF México
- Instituto de Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - Estela Cuevas
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
- Depto de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas; Universidad Nacional Autónoma de México; México DF México
| | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta; Universidad Autónoma de Tlaxcala; Tlaxcala Tlaxcala México
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López-García K, Cuevas E, Sánchez-García O, Pacheco P, Martínez-Gómez M, Castelán F. Differential damage and repair responses of pubococcygeus and bulbospongiosus muscles in multiparous rabbits. Neurourol Urodyn 2014; 35:180-5. [PMID: 25451605 DOI: 10.1002/nau.22702] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 08/01/2014] [Accepted: 10/09/2014] [Indexed: 11/08/2022]
Abstract
AIM To determine the extent of damage and regeneration associated with multiparity on the pubococcygeus and bulbospongiosus muscles. METHODS Age-matched virgin nulliparous and multiparous rabbits that were killed at days 3 and 20 after the fourth delivery were used to harvest pubococcygeus and bulbospongiosus muscles. The activity of the lysosomal enzyme β-glucuronidase was used as a muscle damage indicator. The number of immunoreactive myofiber-associated nuclei anti-Pax7, -MyoD, and -myogenin, as well as the anti-desmin immunoreactive area were measured in muscle sections to estimate some regenerative stages. Significant differences were considered at a P ≤ 0.05. RESULTS The β-glucuronidase activity was increased at postpartum day 20 in the pubococcygeus muscle. This variable was unaltered in the bulbospongiosus muscles of multiparas regardless of the postpartum day on which this was measured. The number of immunoreactive nuclei anti-Pax7 in the pubococcygeus muscle was similar between nulliparas and multiparas, whilst those of anti-MyoD and anti-myogenin were increased at postpartum days 3 and 20. The same was true for these latter three markers evaluated in the bulbospongiosus muscles, supporting an ongoing regeneration. The desmin-positive percentage of muscle area per field was increased at postpartum day 20 in the pubococcygeus muscle, whilst such an increment was seen at postpartum days 3 and 20 in the bulbospongiosus muscles. CONCLUSIONS Damage and regeneration of the pubococcygeus and bulbospongiosus muscles are differently influenced by multiparity in rabbits. This could rely on the anatomical location, metabolism, myofiber composition, and muscle exertion during pregnancy and/or the delivery of each muscle.
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Affiliation(s)
- Kenia López-García
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.,Doctorado en Neuroetología, Universidad Veracruzana, Xalapa, México
| | - Estela Cuevas
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - Octavio Sánchez-García
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.,Doctorado en Neuroetología, Universidad Veracruzana, Xalapa, México
| | - Pablo Pacheco
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México-DF, México.,Instituto de Neuroetología, Universidad Veracruzana, Xalapa, México
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.,Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México-DF, México
| | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
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Bazán C, Gil R, Smichowski P, Pacheco P. Multivariate optimization of a solid phase extraction system employing l-tyrosine immobilized on carbon nanotubes applied to molybdenum analysis by inductively coupled plasma optical emission spectrometry with ultrasound nebulization. Microchem J 2014. [DOI: 10.1016/j.microc.2014.06.003] [Citation(s) in RCA: 5] [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: 02/03/2023]
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Anaya-Hernández A, Méndez-Tepepa M, Laura G. HA, Pacheco P, Martínez-Gómez M, Castelán F, Cuevas E. Farnesoid X receptor immunolocalization in reproductive tissues of adult female rabbits. Acta Histochem 2014; 116:1068-74. [PMID: 24975630 DOI: 10.1016/j.acthis.2014.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/02/2014] [Accepted: 05/04/2014] [Indexed: 12/21/2022]
Abstract
Farnesoid X receptor (FXR) has been involved in lipid metabolism, cell proliferation, apoptosis, and aromatase expression, as well as in the steroid synthesis and signaling. Considering that these events occur in reproductive tissues in females, the aim of the present study was to determine the immunolocalization of FXR in the ovary, oviduct, uterus, and vagina of rabbits. Rabbits were sacrificed and their reproductive tissues were excised and histologically processed. Immunohistochemistry for FXR was done and reproductive tissues were photographed. FXR immunoreactivity was found in all types of ovarian follicles, ovarian stroma, and corpus luteum of virgin and pregnant rabbits. Also, oviductal and vaginal epithelium of virgins, as well as the oviductal smooth muscle, showed anti-FXR immunoreactivity. The uterine epithelium and musculature of virgins had scarce anti-FXR immunoreactivity. Although the role of FXR in female reproductive tissues is still not known, it is possible to consider various functions related to the reproductive tissue.
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Vaidyanathan G, Gururangan S, Bigner D, Zalutsky M, Morfouace M, Shelat A, Megan J, Freeman BB, Robinson S, Throm S, Olson JM, Li XN, Guy KR, Robinson G, Stewart C, Gajjar A, Roussel M, Sirachainan N, Pakakasama S, Anurathapan U, Hansasuta A, Dhanachai M, Khongkhatithum C, Hongeng S, Feroze A, Lee KS, Gholamin S, Wu Z, Lu B, Mitra S, Cheshier S, Northcott P, Lee C, Zichner T, Lichter P, Korbel J, Wechsler-Reya R, Pfister S, Project IPT, Li KKW, Xia T, Ma FMT, Zhang R, Zhou L, Lau KM, Ng HK, Lafay-Cousin L, Chi S, Madden J, Smith A, Wells E, Owens E, Strother D, Foreman N, Packer R, Bouffet E, Wataya T, Peacock J, Taylor MD, Ivanov D, Garnett M, Parker T, Alexander C, Meijer L, Grundy R, Gellert P, Ashford M, Walker D, Brent J, Cader FZ, Ford D, Kay A, Walsh R, Solanki G, Peet A, English M, Shalaby T, Fiaschetti G, Baulande S, Gerber N, Baumgartner M, Grotzer M, Hayase T, Kawahara Y, Yagi M, Minami T, Kanai N, Yamaguchi T, Gomi A, Morimoto A, Hill R, Kuijper S, Lindsey J, Schwalbe E, Barker K, Boult J, Williamson D, Ahmad Z, Hallsworth A, Ryan S, Poon E, Robinson S, Ruddle R, Raynaud F, Howell L, Kwok C, Joshi A, Nicholson SL, Crosier S, Wharton S, Robson K, Michalski A, Hargrave D, Jacques T, Pizer B, Bailey S, Swartling F, Petrie K, Weiss W, Chesler L, Clifford S, Kitanovski L, Prelog T, Kotnik BF, Debeljak M, Fiaschetti G, Shalaby T, Baumgartner M, Grotzer MA, Gevorgian A, Morozova E, Kazantsev I, Iukhta T, Safonova S, Kumirova E, Punanov Y, Afanasyev B, Zheludkova O, Grajkowska W, Pronicki M, Cukrowska B, Dembowska-Baginska B, Lastowska M, Murase A, Nobusawa S, Gemma Y, Yamazaki F, Masuzawa A, Uno T, Osumi T, Shioda Y, Kiyotani C, Mori T, Matsumoto K, Ogiwara H, Morota N, Hirato J, Nakazawa A, Terashima K, Fay-McClymont T, Walsh K, Mabbott D, Smith A, Wells E, Madden J, Chi S, Owens E, Strother D, Packer R, Foreman N, Bouffet E, Lafay-Cousin L, Sturm D, Northcott PA, Jones DTW, Korshunov A, Lichter P, Pfister SM, Kool M, Hooper C, Hawes S, Kees U, Gottardo N, Dallas P, Siegfried A, Bertozzi AI, Sevely A, Loukh N, Munzer C, Miquel C, Bourdeaut F, Pietsch T, Dufour C, Delisle MB, Kawauchi D, Rehg J, Finkelstein D, Zindy F, Phoenix T, Gilbertson R, Pfister S, Roussel M, Trubicka J, Borucka-Mankiewicz M, Ciara E, Chrzanowska K, Perek-Polnik M, Abramczuk-Piekutowska D, Grajkowska W, Jurkiewicz D, Luczak S, Kowalski P, Krajewska-Walasek M, Lastowska M, Sheila C, Lee S, Foster C, Manoranjan B, Pambit M, Berns R, Fotovati A, Venugopal C, O'Halloran K, Narendran A, Hawkins C, Ramaswamy V, Bouffet E, Taylor M, Singhal A, Hukin J, Rassekh R, Yip S, Northcott P, Singh S, Duhman C, Dunn S, Chen T, Rush S, Fuji H, Ishida Y, Onoe T, Kanda T, Kase Y, Yamashita H, Murayama S, Nakasu Y, Kurimoto T, Kondo A, Sakaguchi S, Fujimura J, Saito M, Arakawa T, Arai H, Shimizu T, Lastowska M, Jurkiewicz E, Daszkiewicz P, Drogosiewicz M, Trubicka J, Grajkowska W, Pronicki M, Kool M, Sturm D, Jones DTW, Hovestadt V, Buchhalter I, Jager NN, Stuetz A, Johann P, Schmidt C, Ryzhova M, Landgraf P, Hasselblatt M, Schuller U, Yaspo ML, von Deimling A, Korbel J, Eils R, Lichter P, Korshunov A, Pfister S, Modi A, Patel M, Berk M, Wang LX, Plautz G, Camara-Costa H, Resch A, Lalande C, Kieffer V, Poggi G, Kennedy C, Bull K, Calaminus G, Grill J, Doz F, Rutkowski S, Massimino M, Kortmann RD, Lannering B, Dellatolas G, Chevignard M, Lindsey J, Kawauchi D, Schwalbe E, Solecki D, McKinnon P, Olson J, Hayden J, Grundy R, Ellison D, Williamson D, Bailey S, Roussel M, Clifford S, Buss M, Remke M, Lee J, Caspary T, Taylor M, Castellino R, Lannering B, Sabel M, Gustafsson G, Fleischhack G, Benesch M, Doz F, Kortmann RD, Massimino M, Navajas A, Reddingius R, Rutkowski S, Miquel C, Delisle MB, Dufour C, Lafon D, Sevenet N, Pierron G, Delattre O, Bourdeaut F, Ecker J, Oehme I, Mazitschek R, Korshunov A, Kool M, Lodrini M, Deubzer HE, von Deimling A, Kulozik AE, Pfister SM, Witt O, Milde T, Phoenix T, Patmore D, Boulos N, Wright K, Boop S, Gilbertson R, Janicki T, Burzynski S, Burzynski G, Marszalek A, Triscott J, Green M, Foster C, Fotovati A, Berns R, O'Halloran K, Singhal A, Hukin J, Rassekh SR, Yip S, Toyota B, Dunham C, Dunn SE, Liu KW, Pei Y, Wechsler-Reya R, Genovesi L, Ji P, Davis M, Ng CG, Remke M, Taylor M, Cho YJ, Jenkins N, Copeland N, Wainwright B, Tang Y, Schubert S, Nguyen B, Masoud S, Gholamin S, Lee A, Willardson M, Bandopadhayay P, Bergthold G, Atwood S, Whitson R, Cheshier S, Qi J, Beroukhim R, Tang J, Wechsler-Reya R, Oro A, Link B, Bradner J, Cho YJ, Vallero SG, Bertin D, Basso ME, Milanaccio C, Peretta P, Cama A, Mussano A, Barra S, Morana G, Morra I, Nozza P, Fagioli F, Garre ML, Darabi A, Sanden E, Visse E, Stahl N, Siesjo P, Cho YJ, Vaka D, Schubert S, Vasquez F, Weir B, Cowley G, Keller C, Hahn W, Gibbs IC, Partap S, Yeom K, Martinez M, Vogel H, Donaldson SS, Fisher P, Perreault S, Cho YJ, Guerrini-Rousseau L, Dufour C, Pujet S, Kieffer-Renaux V, Raquin MA, Varlet P, Longaud A, Sainte-Rose C, Valteau-Couanet D, Grill J, Staal J, Lau LS, Zhang H, Ingram WJ, Cho YJ, Hathout Y, Brown K, Rood BR, Sanden E, Visse E, Stahl N, Siesjo P, Darabi A, Handler M, Hankinson T, Madden J, Kleinschmidt-Demasters BK, Foreman N, Hutter S, Northcott PA, Kool M, Pfister S, Kawauchi D, Jones DT, Kagawa N, Hirayama R, Kijima N, Chiba Y, Kinoshita M, Takano K, Eino D, Fukuya S, Yamamoto F, Nakanishi K, Hashimoto N, Hashii Y, Hara J, Taylor MD, Yoshimine T, Wang J, Guo C, Yang Q, Chen Z, Perek-Polnik M, Lastowska M, Drogosiewicz M, Dembowska-Baginska B, Grajkowska W, Filipek I, Swieszkowska E, Tarasinska M, Perek D, Kebudi R, Koc B, Gorgun O, Agaoglu FY, Wolff J, Darendeliler E, Schmidt C, Kerl K, Gronych J, Kawauchi D, Lichter P, Schuller U, Pfister S, Kool M, McGlade J, Endersby R, Hii H, Johns T, Gottardo N, Sastry J, Murphy D, Ronghe M, Cunningham C, Cowie F, Jones R, Sastry J, Calisto A, Sangra M, Mathieson C, Brown J, Phuakpet K, Larouche V, Hawkins C, Bartels U, Bouffet E, Ishida T, Hasegawa D, Miyata K, Ochi S, Saito A, Kozaki A, Yanai T, Kawasaki K, Yamamoto K, Kawamura A, Nagashima T, Akasaka Y, Soejima T, Yoshida M, Kosaka Y, Rutkowski S, von Bueren A, Goschzik T, Kortmann R, von Hoff K, Friedrich C, Muehlen AZ, Gerber N, Warmuth-Metz M, Soerensen N, Deinlein F, Benesch M, Zwiener I, Faldum A, Kuehl J, Pietsch T, KRAMER K, -Taskar NP, Zanzonico P, Humm JL, Wolden SL, Cheung NKV, Venkataraman S, Alimova I, Harris P, Birks D, Balakrishnan I, Griesinger A, Remke M, Taylor MD, Handler M, Foreman NK, Vibhakar R, Margol A, Robison N, Gnanachandran J, Hung L, Kennedy R, Vali M, Dhall G, Finlay J, Erdrich-Epstein A, Krieger M, Drissi R, Fouladi M, Gilles F, Judkins A, Sposto R, Asgharzadeh S, Peyrl A, Chocholous M, Holm S, Grillner P, Blomgren K, Azizi A, Czech T, Gustafsson B, Dieckmann K, Leiss U, Slavc I, Babelyan S, Dolgopolov I, Pimenov R, Mentkevich G, Gorelishev S, Laskov M, Friedrich C, Warmuth-Metz M, von Bueren AO, Nowak J, von Hoff K, Pietsch T, Kortmann RD, Rutkowski S, Mynarek M, von Hoff K, Muller K, Friedrich C, von Bueren AO, Gerber NU, Benesch M, Pietsch T, Warmuth-Metz M, Ottensmeier H, Kwiecien R, Faldum A, Kuehl J, Kortmann RD, Rutkowski S, Mynarek M, von Hoff K, Muller K, Friedrich C, von Bueren AO, Gerber NU, Benesch M, Pietsch T, Warmuth-Metz M, Ottensmeier H, Kwiecien R, Faldum A, Kuehl J, Kortmann RD, Rutkowski S, Yankelevich M, Laskov M, Boyarshinov V, Glekov I, Pimenov R, Ozerov S, Gorelyshev S, Popa A, Dolgopolov I, Subbotina N, Mentkevich G, Martin AM, Nirschl C, Polanczyk M, Bell R, Martinez D, Sullivan LM, Santi M, Burger PC, Taube JM, Drake CG, Pardoll DM, Lim M, Li L, Wang WG, Pu JX, Sun HD, Remke M, Taylor MD, Ruggieri R, Symons MH, Vanan MI, Bandopadhayay P, Bergthold G, Nguyen B, Schubert S, Gholamin S, Tang Y, Bolin S, Schumacher S, Zeid R, Masoud S, Yu F, Vue N, Gibson W, Paolella B, Mitra S, Cheshier S, Qi J, Liu KW, Wechsler-Reya R, Weiss W, Swartling FJ, Kieran MW, Bradner JE, Beroukhim R, Cho YJ, Maher O, Khatua S, Tarek N, Zaky W, Gupta T, Mohanty S, Kannan S, Jalali R, Kapitza E, Denkhaus D, Muhlen AZ, Rutkowski S, Pietsch T, von Hoff K, Pizer B, Dufour C, van Vuurden DG, Garami M, Massimino M, Fangusaro J, Davidson TB, da Costa MJG, Sterba J, Benesch M, Gerber NU, Mynarek M, Kwiecien R, Clifford SC, Kool M, Pietsch T, Finlay JL, Rutkowski S, Pietsch T, Schmidt R, Remke M, Korshunov A, Hovestadt V, Jones DT, Felsberg J, Goschzik T, Kool M, Northcott PA, von Hoff K, von Bueren A, Skladny H, Taylor M, Cremer F, Lichter P, Faldum A, Reifenberger G, Rutkowski S, Pfister S, Kunder R, Jalali R, Sridhar E, Moiyadi AA, Goel A, Goel N, Shirsat N, Othman R, Storer L, Korshunov A, Pfister SM, Kerr I, Coyle B, Law N, Smith ML, Greenberg M, Bouffet E, Taylor MD, Laughlin S, Malkin D, Liu F, Moxon-Emre I, Scantlebury N, Mabbott D, Nasir A, Othman R, Storer L, Onion D, Lourdusamy A, Grabowska A, Coyle B, Cai Y, Othman R, Bradshaw T, Coyle B, de Medeiros RSS, Beaugrand A, Soares S, Epelman S, Jones DTW, Hovestadt V, Wang W, Northcott PA, Kool M, Sultan M, Landgraf P, Reifenberger G, Eils R, Yaspo ML, Wechsler-Reya RJ, Korshunov A, Zapatka M, Radlwimmer B, Pfister SM, Lichter P, Alderete D, Baroni L, Lubinieki F, Auad F, Gonzalez ML, Puya W, Pacheco P, Aurtenetxe O, Gaffar A, Gros L, Cruz O, Calvo C, Navajas A, Shinojima N, Nakamura H, Kuratsu JI, Hanaford A, Eberhart C, Archer T, Tamayo P, Pomeroy S, Raabe E, De Braganca K, Gilheeney S, Khakoo Y, Kramer K, Wolden S, Dunkel I, Lulla RR, Laskowski J, Fangusaro J, Goldman S, Gopalakrishnan V, Ramaswamy V, Remke M, Shih D, Wang X, Northcott P, Faria C, Raybaud C, Tabori U, Hawkins C, Rutka J, Taylor M, Bouffet E, Jacobs S, De Vathaire F, Diallo I, Llanas D, Verez C, Diop F, Kahlouche A, Grill J, Puget S, Valteau-Couanet D, Dufour C, Ramaswamy V, Thompson E, Taylor M, Pomeroy S, Archer T, Northcott P, Tamayo P, Prince E, Amani V, Griesinger A, Foreman N, Vibhakar R, Sin-Chan P, Lu M, Kleinman C, Spence T, Picard D, Ho KC, Chan J, Hawkins C, Majewski J, Jabado N, Dirks P, Huang A, Madden JR, Foreman NK, Donson AM, Mirsky DM, Wang X, Dubuc A, Korshunov A, Ramaswamy V, Remke M, Mack S, Gendoo D, Peacock J, Luu B, Cho YJ, Eberhart C, MacDonald T, Li XN, Van Meter T, Northcott P, Croul S, Bouffet E, Pfister S, Taylor M, Laureano A, Brugmann W, Denman C, Singh H, Huls H, Moyes J, Khatua S, Sandberg D, Silla L, Cooper L, Lee D, Gopalakrishnan V. MEDULLOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou074] [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: 11/14/2022] Open
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Mesquita B, Gonçalves MJ, Pacheco P, Lopes J, Salazar F, Relvas M, Coelho C, Pacheco JJ, Velazco C. Helicobacter pylori identification: a diagnostic/confirmatory method for evaluation. Curr Microbiol 2014; 69:245-51. [PMID: 24715050 DOI: 10.1007/s00284-014-0578-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/08/2014] [Indexed: 12/16/2022]
Abstract
The Helicobacter pylori extra gastric reservoir is probably the oral cavity. In order to evaluate the presence of this bacterium in patients with periodontitis and suspicious microbial cultures, saliva was collected from these and non-periodontitis subjects. PCRs targeting 16S rRNA gene and a 860 bp specific region were performed, and digested with the restriction enzyme DdeI. We observed that the PCR-RFLP approach augments the accuracy from 26.2 % (16/61), found in the PCR-based results, to 42.6 % (26/61), which is an excellent indicator for the establishment of this low-cost procedure as a diagnostic/confirmatory method for H. pylori evaluation.
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Affiliation(s)
- B Mesquita
- Instituto de Investigação e Formação Avançada em Técnicas da Saúde (IINFACTS), Instituto Superior de Ciências da Saúde-Norte/CESPU, Gandra PRD, Portugal
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Torres S, Cerutti S, Raba J, Pacheco P, Silva MF. Preconcentration of seleno-amino acids on a XAD resin and determination in regional olive oils by SPE UPLC-ESI-MS/MS. Food Chem 2014; 159:407-13. [PMID: 24767074 DOI: 10.1016/j.foodchem.2014.03.045] [Citation(s) in RCA: 10] [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: 08/28/2013] [Revised: 02/26/2014] [Accepted: 03/09/2014] [Indexed: 10/25/2022]
Abstract
This study describes a method for seleno-amino acids determination in Argentinean olive oils. Preliminary total selenium determination in olive oils probed low concentrations (62.8±1.6 to 117.4±3.0 μg/kg) and the necessity of implementing a preconcentration method. To this end a XAD® resin was employed as sorbent for selenomethionine (Se-Met), selenomethylselenocysteine (Se-MetSeCys), and selenocysteine (Se-Cys) preconcentration. Determinations were performed by UPLC-ESI-MS/MS. Recoveries were between 84% and 97% for the seleno-amino acids studied, reaching a detection limit of 0.09 μg/kg, a precision of 10% (RSD, n=6), and an enhancement factor of 60-fold (6 for the extraction system and 10 for the preconcentration approach). The only detected Se species in the olive oils was Se-MetSeCys in concentrations ranging from 2.0 to 8.3 μg/kg.
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Affiliation(s)
- Sabier Torres
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Soledad Cerutti
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Julio Raba
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Pablo Pacheco
- Instituto de Química de San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, CP 5700 San Luis, Argentina.
| | - María Fernanda Silva
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Almirante Brown 500, Chacras de Coria, CP 5505 Mendoza, Argentina.
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Pacheco P, Hanley T, Landero Figueroa JA. Identification of proteins involved in Hg–Se antagonism in water hyacinth (Eichhornia crassipes). Metallomics 2014; 6:560-71. [DOI: 10.1039/c3mt00063j] [Citation(s) in RCA: 10] [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: 11/21/2022]
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Pedrero-Badillo F, Anaya-Hernández A, Corona-Quintanilla DL, Castelán F, Pacheco P, Martínez-Gómez M, Cuevas E. Morphohistological characteristics of rabbit oviduct: A proposal for a single regionalization. Anim Reprod Sci 2013; 143:102-11. [DOI: 10.1016/j.anireprosci.2013.09.011] [Citation(s) in RCA: 5] [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] [Received: 02/05/2013] [Revised: 08/28/2013] [Accepted: 09/19/2013] [Indexed: 10/26/2022]
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