Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/40150
Title: CO2 enrichment and reduced seawater pH had no effect on the embryonic development of Acropora palmata (Anthozoa, Scleractinia).
Author: Chavez-Delgado, M.E.
Vazquez-Granados, I.
Rosales-Cortes, M.
Velasco-Rodriguez, V.
Issue Date: 2012
Abstract: Introduction and objective: Polygenic or multifactorial inheritance of chronic disorders (MICD) contribute to irreversible cochleovestibular impairment. Our aim was to determine the type and degree of cochleovestibular dysfunction (CVD) in patients with MICD. Methods: Cross-sectional. We studied 385 patients with type 2 diabetes mellitus, systemic arterial hypertension and dyslipidemia who were referred to Otorhinolaryngology Unit with hearing and vestibular symptoms. The auditory function was evaluated using conventional tonal audiometry and the vestibular function by electronystagmography. Duration of the disease and number of comorbidities, hearing thresholds at 125-8000. Hz pure tones, speech audiometry, oculomotor evaluation and thermal caloric tests were also analysed. Results: A total of 66.7% (95% CI, 61.8-73.4) of patients had 1 comorbidity; 27.7% (95% CI, 23.3-32.5) had 2 and 5.4% (95% CI, 3.4-8.2) had systemic arterial hypertension, diabetes mellitus and dyslipidemia. The mean age was 62 years (SD 12.9) and 57.1% were women. The majority showed obesity, physical inactivity and smoking (77.4%; 95% CI, 72.8-81.4). Cochlear dysfunction was more common than CVD (98.9%; 95% CI, 97.3-99.7 versus 36.1%; 95%CI, 31.2-41.1; P=.001). However, the presence of CVD was significant in patients over 60 years (?2 tend, P?.001, odds ratio: 6.43) and with MICD ?11 years old (?2 tend, P?.001, odds ratio: 4.57). Conclusions: Cochlear dysfunction occurs in patients with MICD and the impact is greater than that of vestibular dysfunction. However, the age factor, duration and number of MICDs contribute to CVD. It is necessary to act on the MICDs and lifestyles to improve CVD. " 2011 Elsevier España, S.L..",,,,,,"10.1016/j.otorri.2011.09.001",,,"http://hdl.handle.net/20.500.12104/40150","http://www.scopus.com/inward/record.url?eid=2-s2.0-84858340842&partnerID=40&md5=41ecbf4b058ab0ecdf10bb7a6b616e95",,,,,,"2",,"Acta Otorrinolaringologica Espanola",,"93
101",,"63",,"Scopus",,,,,,"Complex disease; Hearing loss; Multifactorial inheritance; Prevention; Vertigo",,,,,,"Cochleovestibular dysfunction in patients with diabetes mellitus, hypertension and dyslipidemia [Disfuncion cocleo-vestibular en pacientes con diabetes mellitus, hipertensión arterial sistémica y dislipidemia]",,"Article" "41917","123456789/35008",,,,"Aldaco, Mariza",,"1999",,,,,,,,,,"0377-628X","http://hdl.handle.net/20.500.12104/40138",,,"Español",,,,,,"Revista de Filología y Lingüística",,"161-165",,"25",,"CLASE",,,,,,,,"Teatro",,,,"Don Juan en Guadalajara",,"journalArticle" "41922","123456789/35008",,"Medina-Rosas, P., Center for Marine Science, University of North Carolina Wilmington, 5600 Marvin K Moss Lane, Wilmington, NC 28409, United States, Centro Universitario de la Costa, Universidad de Guadalajara, Av U de G 203, Puerto Vallarta, Jalisco 48280, Mexico; Szmant, A.M., Center for Marine Science, University of North Carolina Wilmington, 5600 Marvin K Moss Lane, Wilmington, NC 28409, United States; Whitehead, R.F., Center for Marine Science, University of North Carolina Wilmington, 5600 Marvin K Moss Lane, Wilmington, NC 28409, United States",,"Medina-Rosas, P.
Szmant, A.M.
Whitehead, R.F.",,"2013",,"The effects of decreased pH, caused by carbon dioxide (CO2) dissolution in seawater (known as ocean acidification (OA)), on the development of newly fertilized eggs of the Caribbean reef-building coral, Acropora palmata, was tested in three experiments conducted during the summers of 2008 and 2009 (two repeats). Three levels of CO2 enrichment were used: present day conditions (400 matm, pH 8.1) and two CO2-enriched conditions (700 matm, pH 7.9, and 1000 matm, pH 7.7). No effects on the progression or timing of development, or embryo and larval size, were detected in any of the three experimental runs. The results show that the embryos and larvae of A. palmata are able to develop normally under seawater pH of at least 0.4 pH units lower than the present levels. Acropora palmata larvae do not usually begin to calcify after settlement, so this study only examined the non-calcifying part of the life cycle of this species. Most of the concern about the effects of OA on marine organisms centers on its effect on calcification. Negative effects of OA on the embryonic development of this species were not found and they may not manifest until the newly settled polyps begin to calcify. " 2013 Taylor & Francis.
URI: http://hdl.handle.net/20.500.12104/40143
http://www.scopus.com/inward/record.url?eid=2-s2.0-84876537145&partnerID=40&md5=93af3e338d8c5e5591789462519359ae
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