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Ortiz A, Cárdenas P, Peralta M, Rodríguez H, Ortiz J, Vazquez E. Central retinal artery occlusion as an ophthalmic complication after snakebite. Arch Soc Esp Oftalmol (Engl Ed) 2022; 97:587-592. [PMID: 36088246 DOI: 10.1016/j.oftale.2022.05.007] [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: 04/14/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Snakebite causes 421.000-1.200.000 poisonings per year due to and hematotoxicity, neurotoxicity y vasculotoxicity. Ophthalmological manifestations secondary to snake bites are rare. If the snake belongs to the Viperidae family, the most frequent ophthalmologic manifestations are macular infarction, chronic open-angle glaucoma, and retinal or vitreous hemorrhage. Central retinal artery occlusion is an extremely rare ocular complication. We report the case of a 30-year-old patient, who consulted due to poor vision in her left eye weeks after suffering a snake bite (Bothrops atrox) in her left lower limb. The diagnosis was a central retinal artery occlusion in the left eye with abnormal findings in the ophthalmological physical examination and in complementary retinal and neuro-ophthalmological tests.
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Affiliation(s)
- A Ortiz
- Fundación Oftalmológica de Santander (FOSCAL), Floridablanca, Colombia; Clínica Oftalmológica Aljaorza, Machala, Ecuador.
| | - P Cárdenas
- Fundación Oftalmológica de Santander (FOSCAL), Floridablanca, Colombia
| | - M Peralta
- Fundación Oftalmológica de Santander (FOSCAL), Floridablanca, Colombia; Clínica Oftalmológica Aljaorza, Machala, Ecuador
| | - H Rodríguez
- Fundación Oftalmológica de Santander (FOSCAL), Floridablanca, Colombia
| | - J Ortiz
- Clínica Oftalmológica Aljaorza, Machala, Ecuador
| | - E Vazquez
- Clínica Oftalmológica Aljaorza, Machala, Ecuador
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Fonseca MC, Pupo-Meriño M, García-González LA, Resik S, Hung LH, Muné M, Rodríguez H, Morier L, Norder H, Sarmiento L. Molecular evolution of coxsackievirus A24v in Cuba over 23-years, 1986-2009. Sci Rep 2020; 10:13761. [PMID: 32792520 PMCID: PMC7427094 DOI: 10.1038/s41598-020-70436-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 07/21/2020] [Indexed: 12/29/2022] Open
Abstract
Coxsackievirus A24 variant (CVA24v) is a major causative agent of acute hemorrhagic conjunctivitis outbreaks worldwide, yet the evolutionary and transmission dynamics of the virus remain unclear. To address this, we analyzed and compared the 3C and partial VP1 gene regions of CVA24v isolates obtained from five outbreaks in Cuba between 1986 and 2009 and strains isolated worldwide. Here we show that Cuban strains were homologous to those isolated in Africa, the Americas and Asia during the same time period. Two genotypes of CVA24v (GIII and GIV) were repeatedly introduced into Cuba and they arose about two years before the epidemic was detected. The two genotypes co-evolved with a population size that is stable over time. However, nucleotide substitution rates peaked during pandemics with 4.39 × 10-3 and 5.80 × 10-3 substitutions per site per year for the 3C and VP1 region, respectively. The phylogeographic analysis identified 25 and 19 viral transmission routes based on 3C and VP1 regions, respectively. Pandemic viruses usually originated in Asia, and both China and Brazil were the major hub for the global dispersal of the virus. Together, these data provide novel insight into the epidemiological dynamics of this virus and possibly other pandemic viruses.
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Affiliation(s)
- Magilé C Fonseca
- Virology Department, Center for Research, Diagnosis and Reference, Institute of Tropical Medicine "Pedro Kourí" (IPK), Novia del Mediodía Km 61/2, La Lisa, Marianao 13, P.O. Box: 601, Havana, Cuba.
| | - Mario Pupo-Meriño
- Departamento de Bioinformática, Centro de Matemática Computacional, Universidad de las Ciencias Informáticas (UCI), Havana, Cuba
| | - Luis A García-González
- Departamento de Ciencias de la Computación, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, México
| | - Sonia Resik
- Virology Department, Center for Research, Diagnosis and Reference, Institute of Tropical Medicine "Pedro Kourí" (IPK), Novia del Mediodía Km 61/2, La Lisa, Marianao 13, P.O. Box: 601, Havana, Cuba
| | - Lai Heng Hung
- Virology Department, Center for Research, Diagnosis and Reference, Institute of Tropical Medicine "Pedro Kourí" (IPK), Novia del Mediodía Km 61/2, La Lisa, Marianao 13, P.O. Box: 601, Havana, Cuba
| | - Mayra Muné
- Virology Department, Center for Research, Diagnosis and Reference, Institute of Tropical Medicine "Pedro Kourí" (IPK), Novia del Mediodía Km 61/2, La Lisa, Marianao 13, P.O. Box: 601, Havana, Cuba
| | - Hermis Rodríguez
- Cell Culture Laboratory, Center for Research, Diagnosis and Reference, Institute of Tropical Medicine "Pedro Kourí" (IPK), Havana, Cuba
| | - Luis Morier
- Department of Microbiology and Virology, Biology Faculty, Havana University, Havana, Cuba
| | - Heléne Norder
- Department of Infectious Diseases/Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Luis Sarmiento
- Immunovirology Unit, Department of Clinical Sciences, Skåne University Hospital, Lund University, Malmö, Sweden
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Suárez JC, Forero A, Llinás A, Bonilla G, Rodríguez H, Amado O. [Bearing surfaces in primary hip arthroplasty. Is there any difference?]. Acta Ortop Mex 2020; 34:22-26. [PMID: 33230995] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
INTRODUCTION In primary hip replacement, different materials are used for bearing surfaces. In our medium metal or ceramic heads with highly crossed-linked polyethylene (PA) are the most used. These combinations have good results, but it is not clear which is clinically superior. The objective of this study is to determine whether there is any clinically significant difference based on a systematic review of the literature and national registries of arthroplasty. MATERIAL AND METHODS We conduct a systematic review of the literature and national registries of arthroplasty and we were looking for studies comparing bearing surfaces: ceramic-highly cross-linked polyethylene (CP) and metal-highly cross-linked polyethylene (MP); describing the revision rate according to the surface type with a minimum 10-year follow-up. The outcome evaluated was: review rate for any cause depending on surface type. RESULTS Two out of fifteen national registries were included. The Australian registry shows a difference in the 15-year revision rate: CP: 6.3 (IC 5.8, 6.7) vs MP: 5.1 (IC 4.6, 5.7). The New Zealand registry shows no differences in revision rate/100 components/year: CP 0.54 (0.48-0.61) vs MP 0.61 (0.57-0.66). We do not find clinical studies with inclusion criteria that answer the research question. CONCLUSION The results of this review show a high survival rate with the use of highly cross-linked polyethylene, the results are similar when using ceramic or metal heads.
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Affiliation(s)
- J C Suárez
- Departamento de Ortopedia y Traumatología, Hospital Universitario de la Fundación Santa Fe de Bogotá. Bogotá, D.C., Colombia
| | - A Forero
- Departamento de Ortopedia y Traumatología, Hospital Universitario de la Fundación Santa Fe de Bogotá. Bogotá, D.C., Colombia
| | - A Llinás
- Departamento de Ortopedia y Traumatología, Hospital Universitario de la Fundación Santa Fe de Bogotá. Bogotá, D.C., Colombia
- Facultad de Medicina, Universidad de Los Andes. Facultad de Medicina, Universidad del Rosario. Bogotá, D.C., Colombia
| | - G Bonilla
- Departamento de Ortopedia y Traumatología, Hospital Universitario de la Fundación Santa Fe de Bogotá. Bogotá, D.C., Colombia
- Facultad de Medicina, Universidad de Los Andes. Facultad de Medicina, Universidad del Rosario. Bogotá, D.C., Colombia
| | - H Rodríguez
- Departamento de Ortopedia y Traumatología, Hospital Infantil de San José. Facultad de Medicina, Fundación Universitaria de Ciencias de la Salud. Bogotá, D.C., Colombia
| | - O Amado
- Departamento de Ortopedia y Traumatología, Fundación Oftalmológica FOSCAL. Bucaramanga, Colombia
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Tong V, Corchuelo S, Cates J, Laiton-Donato K, Dollard S, Rico A, Lanzieri T, Acosta J, Ailes E, Rodríguez H, Ricaldi J, González M, Pelaez D, Valencia D, Mercado M, Honein M, Ospina M. Prevalence of congenital CMV infection in Colombia. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2019.10.037] [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: 11/24/2022]
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Soto C, Bergado G, Blanco R, Griñán T, Rodríguez H, Ros U, Pazos F, Lanio ME, Hernández AM, Álvarez C. Sticholysin II-mediated cytotoxicity involves the activation of regulated intracellular responses that anticipates cell death. Biochimie 2018; 148:18-35. [DOI: 10.1016/j.biochi.2018.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 02/07/2018] [Indexed: 12/12/2022]
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Díaz-Barradas MC, Zunzunegui M, Alvarez-Cansino L, Esquivias MP, Valera J, Rodríguez H. How do Mediterranean shrub species cope with shade? Ecophysiological response to different light intensities. Plant Biol (Stuttg) 2018; 20:296-306. [PMID: 29125662 DOI: 10.1111/plb.12661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 04/28/2017] [Accepted: 11/06/2017] [Indexed: 05/27/2023]
Abstract
Under natural conditions, light exposure for Mediterranean shrubs can be highly variable, especially during cloudy days or under a canopy, and can interfere with other environmental factors such as temperature and water availability. With the aim of decoupling the effect of radiation and temperature from water availability, we conducted an experiment where two perennial and three summer semi-deciduous shrub species were subjected to different levels of irradiation. In order to follow plant responses to light exposure, we measured gas exchange, photosystem II photochemical efficiency, photosynthetic pigments and leaf mass area in spring and summer. Results showed that all study species presented a plastic response to different light conditions, and that light-related traits varied in a coordinated manner. Summer semi-deciduous species exhibited a more opportunistic response, with higher photosynthesis rates in full sun, but under shade conditions, the two strategies presented similar assimilation rates. Stomatal conductance did not show such a drastic response as photosynthetsis, being related to changes in WUE. Daily cycles of Fv /Fm revealed a slight photoinhibitory response during summer, mainly in perennial species. In all cases photosynthetic pigments adjusted to the radiation level; leaves had lower chlorophyll content, higher pool of xanthophylls and higher proportion of the de-epoxydaded state of xanthophylls under sun conditions. Lutein content increased in relation to the xanthophyll pool under shade conditions. Our results evidenced that radiation is an important driving factor controlling morphological and physiological status of Mediterranean shrub species, independently of water availability. Summer semi-deciduous species exhibit a set of traits with higher response variability, maximising their photosynthetic assimilation under different sun conditions.
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Affiliation(s)
- M C Díaz-Barradas
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - M Zunzunegui
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - L Alvarez-Cansino
- Department of Plant Ecology, University of Bayreuth, Bayreuth, Germany
| | - M P Esquivias
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - J Valera
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - H Rodríguez
- Instituto de Bioquímica Vegetal y Fotosíntesis, Centro de Investigaciones, Científicas Isla de la Cartuja, Universidad Sevilla y CSIC, Sevilla, Spain
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De Sousa A, Urdaneta N, Abreu PA, Rodríguez H. Tratamiento del papiloma oncocítico nasosinusal avanzado sin malignización asociada, con resección endoscópica y radioterapia en arcos de volumen modulado (RAVM). Reporte de un caso. iatreia 2017. [DOI: 10.17533/udea.iatreia.v30n4a09] [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: 11/18/2022] Open
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Abreu P, Sánchez R, Mut T, Balaguer D, Latorre I, Rodríguez H. Homeopathic mistletoe adverse reaction mimics nodal involvement in 18 F-FDG PET/CT performed for evaluation of response to chemotherapy in lymphoma. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rodríguez H, Cuestas G, Rodríguez D'Aquila M, Solernou V, García de Dávila M. [Congenital tumor of tongue]. An Pediatr (Barc) 2014; 81:e9-e10. [PMID: 24863617 DOI: 10.1016/j.anpedi.2013.11.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 11/29/2013] [Indexed: 11/25/2022] Open
Affiliation(s)
- H Rodríguez
- Servicio de Endoscopia Respiratoria, Hospital de Pediatría «Prof. Dr. Juan P. Garrahan», Buenos Aires, Argentina
| | - G Cuestas
- Servicio de Endoscopia Respiratoria, Hospital de Pediatría «Prof. Dr. Juan P. Garrahan», Buenos Aires, Argentina.
| | - M Rodríguez D'Aquila
- Servicio de Endoscopia Respiratoria, Hospital de Pediatría «Prof. Dr. Juan P. Garrahan», Buenos Aires, Argentina
| | - V Solernou
- Servicio de Anatomía Patológica, Hospital de Pediatría «Prof. Dr. Juan P. Garrahan», Buenos Aires, Argentina
| | - M García de Dávila
- Servicio de Anatomía Patológica, Hospital de Pediatría «Prof. Dr. Juan P. Garrahan», Buenos Aires, Argentina
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Mendiola J, Regalado EL, Díaz-García A, Thomas OP, Fernández-Calienes A, Rodríguez H, Laguna A, Valdés O. In vitroantiplasmodial activity, cytotoxicity and chemical profiles of sponge species of Cuban coasts. Nat Prod Res 2013; 28:312-7. [DOI: 10.1080/14786419.2013.861835] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fernández-Natal I, Sáez-Nieto JA, Medina-Pascual MJ, Albersmeier A, Valdezate S, Guerra-Laso JM, Rodríguez H, Marrodán T, Parras T, Tauch A, Soriano F. Dermabacter hominis: a usually daptomycin-resistant gram-positive organism infrequently isolated from human clinical samples. New Microbes New Infect 2013; 1:35-40. [PMID: 25356327 PMCID: PMC4184692 DOI: 10.1002/2052-2975.31] [Citation(s) in RCA: 11] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 11/28/2013] [Accepted: 11/29/2013] [Indexed: 01/26/2023] Open
Abstract
During a 12-year period, Dermabacter hominis was isolated from 21 clinical samples belonging to 14 patients attending a tertiary hospital in León, Spain. Samples included blood cultures (14), peritoneal dialysis catheter exit sites (three), cutaneous abscesses (two), an infected vascular catheter (one) and a wound swab (one). Identification was made by API Coryne™ V2.0, Biolog™ GP2 and 16S rRNA gene amplification. Six febrile patients had positive blood cultures (one, two or three sets) and all of them were treated with teicoplanin (two patients), vancomycin, ampicillin plus gentamicin, amoxicillin/clavulanic acid and ciprofloxacin (one each). An additional patient with a single positive blood culture was not treated, the finding being considered non-significant. In the remaining seven patients the organism was isolated from a single specimen and three of them received antimicrobial treatment (ciprofloxacin, ceftriaxone plus vancomycin and amoxicillin/clavulanic acid). At least ten patients had several underlying diseases and conditions, and no direct mortality was observed in relation to the isolated organism. All isolates were susceptible to vancomycin, rifampin and linezolid. Resistance to other antibiotics varied: erythromycin (100%), clindamycin (78.5%), ciprofloxacin (21.4%) and gentamicin, quinupristin-dalfopristin, benzylpenicillin and imipenem 7.1% each. Thirteen isolates were highly resistant to daptomycin with MICs ranging from 8 to 48 (MIC90 = 32 mg/L); only one was daptomycin-sensitive (MIC = 0.19 mg/L).
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Affiliation(s)
- I Fernández-Natal
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León, and Institute of Biomedicine (IBIOMED), University of León
| | - J A Sáez-Nieto
- Service of Bacteriology, Centro Nacional de Microbiología, Instituto de Salud Carlos IIIMadrid, Spain
| | - M J Medina-Pascual
- Service of Bacteriology, Centro Nacional de Microbiología, Instituto de Salud Carlos IIIMadrid, Spain
| | - A Albersmeier
- Institut für Genomforschung, CeBiTec, Universität BielefeldBielefeld, Germany
| | - S Valdezate
- Service of Bacteriology, Centro Nacional de Microbiología, Instituto de Salud Carlos IIIMadrid, Spain
| | - J M Guerra-Laso
- Institut für Genomforschung, CeBiTec, Universität BielefeldBielefeld, Germany
- Department of Internal Medicine, Complejo Asistencial Universitario de LeónSpain
| | - H Rodríguez
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León, and Institute of Biomedicine (IBIOMED), University of León
| | - T Marrodán
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León, and Institute of Biomedicine (IBIOMED), University of León
| | - T Parras
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León, and Institute of Biomedicine (IBIOMED), University of León
| | - A Tauch
- Institut für Genomforschung, CeBiTec, Universität BielefeldBielefeld, Germany
| | - F Soriano
- Public Health, School of Physiotherapy ONCEMadrid, Spain
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López-Carlos MA, Ramírez RG, Aguilera-Soto JI, Rodríguez H, Aréchiga CF, Méndez-Llorente F, Chavez JJ, Medina CA, Silva JM. Effect of the administration program of 2 β-adrenergic agonists on growth performance and carcass and meat characteristics of feedlot ram lambs. J Anim Sci 2012; 90:1521-31. [PMID: 22573838 DOI: 10.2527/jas.2011-3513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of the study was to determine the effects of 3 feeding dose programs of the β-adrenergic agonists (β-AA) ractopamine hydrochloride (RH) or zilpaterol hydrochloride (ZH) for the final 30 d before slaughter on growth performance and carcass and meat characteristics of feedlot ram lambs. Eighty-four Dorper × Katahdin ram lambs (30.0 ± 1.6 kg) were blocked by BW and randomly assigned to pens (4 lambs per pen and 3 pens per treatment). Pens within a block were assigned randomly to 1 of 7 dietary treatments: 1) control (CTL) = diet without β-AA; 2) RH constant (RHC) = 20.0 mg/kg of RH, d 1 to 30; 3) RH increasing (RHI) = 10.0 mg/kg, d 1 to 10; 20.0 mg/kg, d 11 to 20; and 30.0 mg/kg, d 21 to 30; 4) RH decreasing (RHD) = 30.0 mg/kg, d 1 to 10; 20.0 mg/kg, d 11 to 20; and 10.0 mg/kg, d 21 to 30; 5) ZH constant (ZHC) = 6.0 mg/kg of ZH, d 1 to 30; 6) ZH increasing (ZHI) = 3.0 mg/kg, d 1 to 10; 6.0 mg/kg, d 11 to 20; and 9.0 mg/kg d 21 to 30; and 7) ZH decreasing (ZHD) = 9.0 mg/kg, d 1 to 10; 6.0 mg/kg, d 11 to 20; and 3.0 mg/kg, d 21 to 30. Overall, β-AA supplementation reduced DMI (P < 0.001) compared with CTL lambs, but lambs fed RHI and ZHI programs had greater (P < 0.05) total BW gain, ADG, and G:F. Carcass weight was improved (P < 0.05) by RHI and ZHI programs, but dressing percentage was enhanced (P < 0.05) by only ZHC or ZHI treatments. Fat thickness and yield grade were reduced (P < 0.05) by ZH or RH regardless of feeding program. Most LM characteristics (pH, moisture loss, and chemical composition) were not different among treatments (P > 0.05), with the exception of fat content that was reduced (P < 0.001) in lambs fed β-AA, and diameter of muscle fibers that was increased (P < 0.05) by ZHI treatment. Constant and increasing doses of ZH reduced (P < 0.05) the a* value of LM and semitendinosus muscles, with no effects on L* or b* values. The mass of liver was reduced (P < 0.05) in ZHI-treated lambs compared with CTL lambs, and plasma urea concentration was reduced (P < 0.05) by RH or ZH administration regardless of feeding program, although there were no other differences in organ mass weight (P ≥ 0.35) or blood metabolites (P ≥ 0.16). Increasing doses of RH or ZH augmented the growth performance response without negative effects on organ mass weight or blood metabolites. Although a ZHI program improved carcass characteristics, the increased LM fiber diameter of lambs fed ZHI program could be unfavorable because of the potential negative effect on tenderness.
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Affiliation(s)
- M A López-Carlos
- Faculty of Biological Sciences, Autonomous University of Nuevo Leon, Nuevo Leon, 66450, México
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Rodríguez-Camacho M, Prieto-Corona B, Silva-Pereyra J, Marosi E, Bernal J, Yáñez G, Rodríguez H, Guerrero V, Luviano L. Semantic memory failures in reading disabled (RD) children consistent electrophysiological evidence. Int J Psychophysiol 2012. [DOI: 10.1016/j.ijpsycho.2012.07.098] [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: 11/26/2022]
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Bernal J, Hernández M, Silva-Pereyra J, Rodríguez M, Yáñez G, Prieto B, Luviano L, Marosi E, Romero H, Rodríguez H, Guerrero V. Effects of working memory load on visuospatial task in reading disabled children: An event-related potentials study. Int J Psychophysiol 2012. [DOI: 10.1016/j.ijpsycho.2012.07.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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López-Carlos MA, Ramírez RG, Aguilera-Soto JI, Rodríguez H, Aréchiga CF, Méndez-Llorente F, Chavez JJ, Medina CA, Silva JM. Effect of the administration program of 2 β-adrenergic agonists on growth performance and carcass and meat characteristics of feedlot ram lambs. J Anim Sci 2012. [DOI: 10.2527/jas.2010-3513] [Citation(s) in RCA: 14] [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: 11/13/2022] Open
Affiliation(s)
- M. A. López-Carlos
- Faculty of Biological Sciences, Autonomous University of Nuevo Leon, Nuevo Leon, 66450, México
| | - R. G. Ramírez
- Faculty of Biological Sciences, Autonomous University of Nuevo Leon, Nuevo Leon, 66450, México
| | - J. I. Aguilera-Soto
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
| | - H. Rodríguez
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
| | - C. F. Aréchiga
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
| | - F. Méndez-Llorente
- Faculty of Biological Sciences, Autonomous University of Nuevo Leon, Nuevo Leon, 66450, México
| | - J. J. Chavez
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
| | - C. A. Medina
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
| | - J. M. Silva
- Faculty of Veterinary Medicine and Animal Sciences, Autonomous University of Zacatecas, Zacatecas, 98500, México
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Diaz J, Espinoza-Navarro O, Rodríguez H, Moreno A. Prevalencia de Patrones Antropométricos y Fisiológicos en Población de Adultos Mayores, sobre los 60 Años en Arica,Chile. INT J MORPHOL 2011. [DOI: 10.4067/s0717-95022011000400064] [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: 11/17/2022]
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Fonseca MC, Sarmiento L, Resik S, Pereda N, Rodríguez H, Kourí V, Martínez PA, Piñón A, Limonta D, Más P, Hung LH. Isolation of Coxsackievirus A24 variant from patients with hemorrhagic conjunctivitis in Cuba, 2008-2009. J Clin Virol 2011; 53:77-81. [PMID: 22074932 DOI: 10.1016/j.jcv.2011.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [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: 04/19/2011] [Revised: 10/12/2011] [Accepted: 10/14/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND An outbreak of acute hemorrhagic conjunctivitis occurred in Cuba in 2008 and 2009. OBJECTIVE To determinate the etiological agent associated with the Cuban outbreaks of acute hemorrhagic conjunctivitis during 2008 and 2009. STUDY DESIGN Conjunctival swabs and/or faecal samples from 382 patients with clinical diagnosis suggestive of acute hemorrhagic conjunctivitis were subject to viral culture in HEp-2 human laryngeal epidermoid carcinoma cells. Positive samples were identified by a specific Coxsackievirus A24 variant PCR and the 3C protease region of 16 isolates was sequenced for phylogenetic analysis. RESULTS Enterovirus cytopathic effect was observed in 138 cases (36%). A higher percent of CA24v was recovered from faecal samples, 19 out of 45 cases (42.2%), than from conjunctival swabs, 127 out of 355 samples (35.8%). All isolates were identified as Coxsackievirus A24 variant. Phylogenetic analysis revealed that 2008 and 2009 Cuban outbreaks were caused by the same virus strains and that isolates were closely related to those from Taiwan (2006-2007), China (2007-2008) and Singapore (2005) with a bootstrap value of 71%. CONCLUSIONS Outbreaks of acute hemorrhagic conjunctivitis occurred in Cuba in 2008 and 2009 were caused by Coxsackievirus A24 variant. The faecal-oral route is another mode of transmission of CA24v in the acute hemorrhagic conjunctivitis outbreaks. Phylogenetic analysis of Cuban CA24v strains involved in an acute hemorrhagic conjunctivitis outbreak in 2008 and 2009 confirms a new introduction of the CA24 variant into the Americas from South-east Asia.
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Affiliation(s)
- Magilé C Fonseca
- Department of Virology, Pedro Kourí Tropical Medicine Institute (IPK), Autopista Novia del Mediodía km. 6 1/2, Marianao 13, Havana, Cuba.
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Rodríguez H, Espinoza-Navarro O, Peñafiel C, Escobar E, Silva I, Quiroz P, Arriaza C, Castro ME, Sánchez C, Arias M, Michea A. Stem Cells and Androgen Receptor in Human Periapical Periodontitis. INT J MORPHOL 2011. [DOI: 10.4067/s0717-95022011000300048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Espinoza-Navarro O, Diaz J, Rodríguez H, Moreno A. Effects of Altitude on Anthropometric and Physiological Patterns in Aymara and Non-Aymara Population Between 18 and 65 Years in the Province of Parinacota Chile (3.700 masl). INT J MORPHOL 2011. [DOI: 10.4067/s0717-95022011000100005] [Citation(s) in RCA: 3] [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: 11/17/2022]
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20
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Prieto-Corona B, Rodríguez-Camacho M, Silva-Pereyra J, Marosi E, Bernal J, Yáñez G, Guerrero V, Luviano L, Hernández M, Rodríguez H. Current sources of the event-related potentials (ERP) during arithmetic fact retrieval: Differences among children and adults. Int J Psychophysiol 2010. [DOI: 10.1016/j.ijpsycho.2010.06.188] [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: 11/16/2022]
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López-Carlos M, Ramírez R, Aguilera-Soto J, Aréchiga C, Rodríguez H. Size and shape analyses in hair sheep ram lambs and its relationships with growth performance. Livest Sci 2010. [DOI: 10.1016/j.livsci.2010.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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López-Carlos M, Ramírez R, Aguilera-Soto J, Aréchiga C, Méndez-Llorente F, Rodríguez H, Silva J. Effect of ractopamine hydrochloride and zilpaterol hydrochloride on growth, diet digestibility, intake and carcass characteristics of feedlot lambs. Livest Sci 2010. [DOI: 10.1016/j.livsci.2010.02.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Espinoza-Navarro O, Vega C, Urrutia A, Moreno A, Rodríguez H. Patrones Antropométricos y Consumo Máximo de Oxígeno (VO2) entre Niños Escolares Chilenos Aymaras y No Aymaras de 10 a 12 Años, que Viven en Altura (3.500 msnm) y en la Planicie (500 msnm). INT J MORPHOL 2009. [DOI: 10.4067/s0717-95022009000400054] [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: 11/17/2022]
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24
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Espinoza-Navarro O, Rodríguez H, Rodríguez M, Silva E, Luque A. Alteration of the Reproductive Patterns in Drosophila melanogaster by Effects of High Concentrations of Boron on In Vitro Cultured Medium. INT J MORPHOL 2009. [DOI: 10.4067/s0717-95022009000300021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Milla E, Venegas G, Inostroza J, Ossandon E, Cuevas M, Vega C, Rodríguez H. SCHU-29: Notch-3 and Notch-4 in the Development of a Normal Prostate Gland in a Mouse. Urology 2008. [DOI: 10.1016/j.urology.2008.08.037] [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: 11/27/2022]
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26
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Rodríguez H, Espinoza-Navarro O, Sarabia L, Tamayo C, Sepúlveda M, Inostroza J, Araya JC, Moriguchi K. Histological and Functional Organization in Human Testicle: Expression of Receptors c-kit and Androgens. INT J MORPHOL 2008. [DOI: 10.4067/s0717-95022008000300015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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de las Rivas B, Rodríguez H, Carrascosa AV, Muñoz R. Molecular cloning and functional characterization of a histidine decarboxylase from Staphylococcus capitis. J Appl Microbiol 2007; 104:194-203. [PMID: 17887985 DOI: 10.1111/j.1365-2672.2007.03549.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 11/30/2022]
Abstract
AIMS Histamine intoxication is probably the best known toxicological problem of food-borne disease. A histamine-producing Staphylococcus capitis strain has been isolated from a cured meat product. The aim of this study was to gain deeper insights into the genetic determinants for histamine production in Staph. capitis. METHODS AND RESULTS The nucleotide sequence of a 6446-bp chromosomal DNA fragment containing the hdcA gene encoding histidine decarboxylase (HDC) has been determined in Staph. capitis IFIJ12. This DNA fragment contains five complete and two partial open reading frames. Putative functions have been assigned to gene products by sequence comparison with proteins included in the databases. The hdcA gene has been expressed in Escherichia coli resulting in HDC activity. The presence of a functional promoter (Phdc) located upstream of hdcA has been demonstrated. Insertion of the histamine biosynthetic locus in Staph. capitis seems to be associated with a noticeable genome reorganization. CONCLUSIONS Among the staphylococcal species analysed in this study only Staph. capitis strains produce histamine. The hdcA gene cloned from Staph. capitis encodes a functional HDC that produce histamine from the amino acid histidine. SIGNIFICANCE AND IMPACT OF THE STUDY The identification of the DNA region involved in histamine production in Staph. capitis will allow further work in order to avoid histamine production in foods.
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Affiliation(s)
- B de las Rivas
- Departamento de Microbiología, Instituto de Fermentaciones Industriales, CSIC, Madrid, Spain
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Espinoza-Navarro O, Vilaxa A, Granifo L, Rojas S, Rodríguez H. Histological Study on the Male Reproductive Organs of Mouse CF1 Treated With Boron. INT J MORPHOL 2007. [DOI: 10.4067/s0717-95022007000200017] [Citation(s) in RCA: 4] [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: 11/17/2022]
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Affiliation(s)
- A Carvajal
- Departamento de Sanidad Animal (Enfermedades Infecciosas y Epidemiología), Facultad de Veterinaria, Universidad de León, E-24071 León, Spain
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Pagniez G, Radice M, Cuirolo A, Rodríguez O, Rodríguez H, Vay C, Famiglietti A, Gutkind G. [Prevalence of metallo-beta-lactamase in carbapenem resistant Pseudomonas aeruginosa at a university hospital of Buenos Aires City]. Rev Argent Microbiol 2006; 38:33-7. [PMID: 16784133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
The present study was conducted to estimate the prevalence of metallo-beta-lactamases in 91 consecutive carbapenem resistant Pseudomonas aeruginosa isolates, recovered from inpatients at Hospital de Clínicas in Buenos Aires. Both, phenotypic and genotypic methods detected the presence of carbapenemases in 10 (11%) isolates, corresponding to VIM-11 in 7/10 and VIM-2 in the others. Codifying genes were all included in class 1 integrons, upstream genes coding for aminoglycoside modifying enzymes. One hundred percent sensitivity and specificity was achieved by the metallo-beta-lactamases phenotypic screening method using EDTA (1 micromol) disks in the Pseudomonas aeruginosa isolates included in this study. Sensitivity to aztreonam in carbapenem resistant isolates was suspicious of the presence of these enzymes.
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Affiliation(s)
- G Pagniez
- Carrera de Especialización en Bioquímica Clínica, área Bacteriología Clínica, Escuela de graduados
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Valero MA, Díez L, El Kadaoui N, Jiménez AE, Rodríguez H, León M. [Are the tools recommended by ASPEN and ESPEN comparable for assessing the nutritional status?]. NUTR HOSP 2005; 20:259-67. [PMID: 16045128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
INTRODUCTION [corrected] There is no "gold standard" for identification of malnutrition. The ASPEN board of directors (2002) suggest the subjective global assessment (SGA) and ESPEN (2002) recommend the nutritional risk screening-2002 (NRS-2002) to detect the prevalence of malnutrition. AIMS This cross-sectional study aims (1) to assess the prevalence of malnutrition on admission and (2) to know association between two tools used to evaluate nutritional risk. MATERIAL AND METHODS 135 patients (42.2% women and 58.8% men, 62.1 +/- 14.4 years) are studied at admission. Different parameters are assessed to evaluate nutritional state. Patient's energy requirements (Harris Benedict x Long's factor) and energy intake, calculated as 24 h-recall, are compared. The prevalence of malnutrition is assessed with two screening tools: SGA and NRS-2002. RESULTS 42.2% of the patients had lost more than 5% body weight and 39.3% had an intake lower than required at admission. The prevalence of malnutrition is 40.7 and 45.1/100 patients admitted at hospital, if SGA or NRS-2002 are used, respectivility. There is strong agreement between results of two nutritional assessment methods (p = 0.000). Serum albumin and protein concentrations and linfocytes count are less in the malnourished patients. CONCLUSIONS The prevalence of malnutrition is elevated. In clinical practice, both methods could be used to identify patients at nutritional risk, but the NRS-2002 is a less subjective method.
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Affiliation(s)
- Maria A Valero
- Unidad de Nutrición Clínica, Hospital 12 de Octubre, Madrid.
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González L, Abdo A, López O, Samada M, Ramos L, Castillo J, Fernández A, Ysla R, Hernández JC, Cepero M, Castellanos R, Wilford M, Gómez F, Díaz J, Collera SA, Domínguez J, Benítez PP, Rodríguez H, Avalo FD. Liver Transplantation at the Cuban Center for Medical and Surgical Research. Transplant Proc 2005; 37:1505-6. [PMID: 15866656 DOI: 10.1016/j.transproceed.2005.02.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
From July 4, 1999, when a liver transplantation program was started in Cuba, to October 2003, 66 procedures had been performed in 60 patients. The most frequent reason was cirrhosis caused by hepatitis C virus (29%), and alcoholic cirrhosis (22%). Two patients received simultaneous liver-kidney transplants. Half of the patients were men. Patient ages ranged from 12 to 62 years; the average surgical time was 6 hours; and cold ischemia time was 4 to 14 hours. The average blood consumption was 2033 mL; 2900 mL of plasma and 8 units of platelets were used in 7 cases. Immunosuppression was mainly cyclosporine (Neoral), mycophenolate mofetil or azathioprine, and prednisone. Acute cellular rejections were treated in almost all cases with 3 doses of methylprednisolone. The most frequent complications were biliary (24%), hepatic arterial thrombosis (12%), post-surgical bleeding (10%), acute cellular rejection (24%), and ductopenic rejection (2%). The overall 1-year survival rate was 73.7%.
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Affiliation(s)
- L González
- Medical-Surgical Research Center, Havana, Cuba.
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33
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Del Campo JA, Rodríguez H, Moreno J, Vargas MA, Rivas J, Guerrero MG. Accumulation of astaxanthin and lutein in Chlorella zofingiensis (Chlorophyta). Appl Microbiol Biotechnol 2004; 64:848-54. [PMID: 14689249 DOI: 10.1007/s00253-003-1510-5] [Citation(s) in RCA: 181] [Impact Index Per Article: 9.1] [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: 09/24/2003] [Revised: 11/03/2003] [Accepted: 11/07/2003] [Indexed: 10/26/2022]
Abstract
When grown photoautotrophically, Chlorella zofingiensis strain CCAP 211/14 accumulates a significant amount of valuable carotenoids, namely astaxanthin and lutein, of increasing demand for use as feed additives in fish and poultry farming, as colorants in food, and in health care products. Under standard batch-culture conditions, this microalgal strain exhibits high values of both growth rate (about 0.04 h(-1)) and standing cell population (over 10(11) cells l(-1), or 7 g dry weight l(-1)). Lutein, in a free (unesterified) form, was the prevalent carotenoid during early stages of cultivation (over 0.3 pg cell(-1), equal to 4 mg g(-1) dry weight, or 20 mg l(-1) culture), whereas esterified astaxanthin accumulated progressively, to reach a maximum (over 0.1 pg cell(-1), equal to 1.5 mg g(-1) dry weight, or 15 mg l(-1) culture) in the late stationary phase. A differential response of lutein and astaxanthin accumulation was also recorded with regard to the action of some environmental and nutritional factors. C. zofingiensis CCAP 211/14 represents a unique model system for analyzing the differential regulation of the levels of primary (lutein) and secondary (astaxanthin) carotenoids. Relevant also from the biotechnological viewpoint, this photosynthetic organism, with outstanding attributes for fast photosynthetic growth and carotenoid accumulation, might prove most valuable for its application to the mass production of either or both lutein and astaxanthin.
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Affiliation(s)
- J A Del Campo
- Instituto de Bioquímica Vegetal y Fotosíntesis, Centro de Investigaciones Científicas Isla de la Cartuja, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avda. Américo Vespucio s/n, 41092 Sevilla, Spain
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Martínez F, Macías A, Rodríguez H, Peiró I, Santana C, Sánchez V, García Puente I, Martínez P, de Pablos P, Pérez F. W09.235 Prevalence treatment and control of dyslipidaemia in a Canarian population. Relationship with diabetes mellitus and glucose intolerance. The Guia study. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90234-1] [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: 11/16/2022]
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Abstract
The use of phosphate solubilizing bacteria as inoculants simultaneously increases P uptake by the plant and crop yield. Strains from the genera Pseudomonas, Bacillus and Rhizobium are among the most powerful phosphate solubilizers. The principal mechanism for mineral phosphate solubilization is the production of organic acids, and acid phosphatases play a major role in the mineralization of organic phosphorous in soil. Several phosphatase-encoding genes have been cloned and characterized and a few genes involved in mineral phosphate solubilization have been isolated. Therefore, genetic manipulation of phosphate-solubilizing bacteria to improve their ability to improve plant growth may include cloning genes involved in both mineral and organic phosphate solubilization, followed by their expression in selected rhizobacterial strains. Chromosomal insertion of these genes under appropriate promoters is an interesting approach.
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Affiliation(s)
- H Rodríguez
- Department of Microbiology, Cuban Research Institute on Sugarcane By-Products (ICIDCA), P.O. Box 4026, CP 11 000, Havana, Cuba.
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Pons JL, Rodríguez H, Luyckx I, Reynaerts D, Ceres R, Van Brussel H. High torque ultrasonic motors for hand prosthetics: current status and trends. Technol Health Care 2002; 10:121-33. [PMID: 12082216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
This paper presents the work carried out at the Instituto de Automática Industrial, in the framework of the EU MANUS project and with the co-operation of the Katholieke Universiteit of Leuven, to develop a specifically designed TWUM for driving our prototype of hand prosthesis. The application of TWUM to prosthetic devices has clear advanteges, namely, noiseless operation, self-braking drive, high torque and low speed characteristics. Here we analyse main actuation advantages, point out main drawbacks of this technology and describe our research in the area of specific design of TWUM for high torque actuation, improved control characteristics and enhanced overall performance. We intend to provide a concurrent approach to the overall actuator design involving electronics, mechanical design as well as improved control strategies having in mind the prosthetic application.
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Affiliation(s)
- J L Pons
- Instituto de Automática Industrial, CSIC, Ctra. Campo Real km. 0,200, 28500 Arganda del Rey, Madrid, Spain.
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Pons J, Rodríguez H, Luyckx I, Reynaerts D, Ceres R, Brussel HV. High torque ultrasonic motors for hand prosthetics: Current status and trends. Technol Health Care 2002. [DOI: 10.3233/thc-2002-10204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- J.L. Pons
- Instituto de Automática Industrial, CSIC, Ctra. Campo Real km. 0, 200, 28500 Arganda del Rey, Madrid, Spain. Tel.: ; Fax: ; E-mail:
| | - H. Rodríguez
- Instituto de Automática Industrial, CSIC, Ctra. Campo Real km. 0, 200, 28500 Arganda del Rey, Madrid, Spain. Tel.: ; Fax: ; E-mail:
| | - I. Luyckx
- PMA Division, Katholieke Universiteit, Celestijnenlaan, 300B, B-3001 Heverlee-Leuven, Belgium. Tel.: ; Fax:
| | - D. Reynaerts
- PMA Division, Katholieke Universiteit, Celestijnenlaan, 300B, B-3001 Heverlee-Leuven, Belgium. Tel.: ; Fax:
| | - R. Ceres
- Instituto de Automática Industrial, CSIC, Ctra. Campo Real km. 0, 200, 28500 Arganda del Rey, Madrid, Spain. Tel.: ; Fax: ; E-mail:
| | - H. Van Brussel
- PMA Division, Katholieke Universiteit, Celestijnenlaan, 300B, B-3001 Heverlee-Leuven, Belgium. Tel.: ; Fax:
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Marosi E, Rodríguez H, Yañez G, Bernal J, Rodríguez M, Fernández T, Silva J, Reyes A, Guerrero V. Broad band spectral measurements of EEG during emotional tasks. Int J Neurosci 2002; 108:251-79. [PMID: 11699193 DOI: 10.3109/00207450108986517] [Citation(s) in RCA: 10] [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] [Indexed: 11/13/2022]
Abstract
Broad band spectral measurements were calculated on EEG recordings of 40 healthy male university students during emotional tasks using the emotion induction technique. Emotional stimuli were sentences with positive valence (joy of love), with negative valence (frustration) and neutral situation. Broad band measurements showed that delta and beta bands reflected better the differences by emotional state. Hemispheric differences associated to emotional states were obtained only for mean frequency data. Higher delta frequencies at left frontopolar, right frontal, parietal and temporal and higher beta frequencies at left frontotemporal and temporal were related to love. Meanwhile higher delta frequencies especially at left frontopolar and temporal regions and lower beta frequencies at midline frontal (Fz) and central (Cz) leads were associated to frustration. These findings suggest that narrow band measurements may reflect more efficiently EEG changes during emotional tasks.
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Affiliation(s)
- E Marosi
- Laboratory of Neurosciences, National University of Mexico, Enep Iztacala, Mexico.
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Abstract
A genetic construction was carried out using the broad host range vector pKT230 and plasmid pMCG898, which encodes the Erwinia herbicola pyrroloquinoline quinone (PQQ) synthase, a gene involved in mineral phosphate solubilization (mps). The final construction was transformed and expressed in Escherichia coli MC1061, and the recombinant plasmids were transferred to Burkholderia cepacia IS-16 and Pseudomonas sp. PSS recipient cells by conjugation. Clones containing recombinant plasmids produced higher clearing halos in plates with insoluble phosphate as the unique (P) source, in comparison with those of strains without plasmids, demonstrating the heterologous expression of the E. herbicola gene in the recipient strains. This genetic manipulation allowed the increase in mps ability of both strains, enhancing their potentialities as growth promoters of agricultural crops. These results represent the first report on the application of the recombinant DNA methodology for the obtaining of improved phosphate solubilizing ability from rhizobacterial strains for biofertilization purposes.
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Affiliation(s)
- H Rodríguez
- Department of Microbiology, Cuban Research Institute on Sugarcane By-Products (ICIDCA), P.O. Box 4026, CP 11 000, Havana, Cuba.
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Rodríguez H, Torres C, Valdés X, Guerra H, Pastor LM, Maccallini G, Bustos-Obregón E. The acrosomic reaction in stallion spermatozoa: inductive effect of the mare preovulatory follicular fluid. BIOCELL 2001; 25:115-20. [PMID: 11590887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
In the female genital tract, spermatozoa must undergo capacitation and acrosome reaction prior to fertilization. A number of factors may induce physiological acrosome reaction assayed in vitro. The aims of this study are to determine the inductive effect of the preovulatory follicular fluid on the sperm acrosomal status in the equine, once some characteristics of the follicular fluid during folliculogenesis had been evaluated. The spermatozoa were obtained from cauda epididymes of adult stallion. Follicular fluid was taken from mare ovarian follicles classified according to their diameter. In these fluids, total protein, progesterone, estradiol and osmolarity were determined. Afterwards, the effect of preovulatory follicular fluid (50%) upon induction of the acrosomic reaction in stallion capacitated spermatozoa was assayed. Results show that during folliculogenesis the ratio progesterone/estrogen is below 1. In large preovulatory follicles, there is a sharp increase of progesterone, reaching a ratio progesterone/estrogen close to 4. Protein concentration and osmolarity increase together with follicular development, being osmolarity very high at the preovulatory stage. Follicular fluid--in vitro--increases the percentage of spermatozoa with acrosome reaction, maintaining high rates of vitality and motility. The characteristics of follicular fluid undergo dynamic changes during the folliculogenesis, such as steroid level, protein concentration and osmolarity. These events may play a role in the reproductive process in vivo, considering that in vitro the follicular fluid is a very effective inductor of the acrosome reaction, with optimum levels of vitality and motility.
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Affiliation(s)
- H Rodríguez
- School of Medicine, University of Murcia, Murcia, Spain.
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Abstract
The desired outcome for patients undergoing mitral valve surgery includes both good function of the mitral valve, and preservation and restoration of sinus rhythm. To achieve such an outcome, we evolved the concept of the left atrium and mitral valve as a "functional anatomic unit." In this report, we describe a technique for reduction in left atrial size, isolation of the pulmonary veins, and amputation of the left atrial appendage in combination with mitral valve repair. We performed such a procedure in 4 patients, with rheumatic mitral valve disease and chronic atrial fibrillation, with restoration of good valve function and sinus rhythm at 16 to 20 months after surgery.
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Affiliation(s)
- O A García-Villarreal
- Department of Cardiothoracic Surgery, Centro Médico Nacional del Norte, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon.
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Abstract
The effect of dilution rate, mixing and daily solar cycles on lutein and biomass productivity of the green unicellular alga Muriellopsis sp. has been studied, throughout the year, in an outdoor tubular photobioreactor. Highest productivity values, for both lutein (about 180 mg m(-2) per day) and biomass (about 40 g (dry weight) m(-2) per day) were achieved on May and July. Values for the optimal dilution rate varied, being lower in May (0.06 h(-1)) than in November (0.09 h(-1)). Similar values for photosynthetic efficiency (about 4%) were recorded throughout the year, indicating that optimization of culture conditions was achieved for each experimental period. Along the daily solar cycle, there was a fast increase of lutein content of Muriellopsis sp. in response to irradiance during the early hours of daytime, with maximal lutein content (about 6 mg (g dry weight)(-1)) being recorded at noon, and decreasing slowly, thereafter. An increase in cell growth was observed following the establishment of maximum lutein/chlorophyll ratio, which might indicate a role for lutein in protecting cells from photodamage.
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Affiliation(s)
- J A Del Campo
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Centro de Investigaciones Científicas Isla de la Cartuja, Américo Vespucio, s/n, E-41092 Sevilla, Spain
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45
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Martínez-Alvarez R, Martín N, Seoane C, Suárez M, Pérez R, Rodríguez H, Kayali N. A study of the electrospray ionisation and ion-trap fragmentation of [M - H](-) ions of new 3,5-disubstituted tetrahydro-2H-1,3,5-thiadiazin-2-thiones. Rapid Commun Mass Spectrom 2001; 15:758-762. [PMID: 11344534 DOI: 10.1002/rcm.294] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The electrospray ionisation (ESI) in negative mode of the pharmacologically significant 3,5-disubstituted tetrahydro-2H-1,3,5-thiadiazin-2-thiones, and their subsequent fragmentations using an ion-trap mass spectrometer, have been investigated. Experiments on sequential product ion fragmentations (MS(n)) were performed in order to elucidate the degradation pathways for these compounds. The data presented show that the fragmentation of the even-electron [M - H](-) ions could proceed through an internal nucleophilic substitution displacement. Decarboxylation and extrusion of carbon disulfide are other fragmentations observed.
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Affiliation(s)
- R Martínez-Alvarez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, E-28040 Madrid, Spain.
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46
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Pérez R, Rodríguez H, Pérez E, Suárez M, Reyes O, González LJ, López de Cerain A, Ezpelata O, Pérez C, Ochoa C. Study on the decomposition products of thiadiazinthione and their anticancer properties. Arzneimittelforschung 2000; 50:854-7. [PMID: 11050705 DOI: 10.1055/s-0031-1300301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Study of the anticancer properties of thirty-four 3,5-disubstituted-tetrahydro-2H-1,3,5-thiadiazin-2-thione derivatives has been carried out by using cytotoxicity assays against HeLa, HT-29 and Hep G2 cells. The decomposition products of thiadiazinthione 1 m have been studied and their anticancer properties evaluated.
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Affiliation(s)
- R Pérez
- Laboratorio de Síntesis Orgánica, Facultad de Qímica, Universidad de La Habana, Cuba
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47
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Lantigua-Cruz A, Mora F, Arechaederra M, Rojas I, Morales E, Rodríguez H, Viñas C, Noa CE, Barrios B. Etiological Characterization of 512 Severely Mentally Retarded Institutionalized Patients in Havana. Public Health Genomics 2000; 2:184-9. [PMID: 14960840 DOI: 10.1159/000016210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate etiological factors in severe mental retardation (SMR). METHODS An etiological study is presented of 512 SMR patients in five specialized institutions in Havana. RESULTS Prenatal, perinatal and postnatal causes were apparent in 58.0, 24.8 and 11.1% of the patients, respectively; infantile psychosis was determined in only 0.4%. The remaining 5.6% were classified as having SMR of undeterminable origin, i.e. patients with apparently normal pre-, peri- and postnatal histories who had neither dysmorphism nor affected first-degree relatives, and had a normal karyotype and metabolic screen. Among prenatal causes, genetic factors were the most frequent (82.8%), while environmental factors were apparent in only 5.3% of these cases. Of the cases with prenatal genetic etiology, chromosomal aberrations were present in 86.5% (Down syndrome 96.2% and 3.7% other chromosomal aberrations), monogenic disorders in 11.3% [neurocutaneous diseases (32.1%) and fragile X syndrome (25%) were the most frequent], and multifactorial disorders in 2.0%. Thirty-five patients (11.7%) presented multiple congenital anomalies of 'prenatal unknown' causes. The latter group may include unidentifiable chromosomal aberrations, uniparental disomy, de novo mutations and multifactorial or teratogenic factors. CONCLUSION Accurate determination of the etiology of SMR is important not only for genetic counseling purposes, but also in identifying prenatal events which make infants more vulnerable to perinatal risk factors.
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Affiliation(s)
- A Lantigua-Cruz
- National Center of Medical Genetics, Higher Institute of Medical Sciences, Havana, Cuba
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48
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Rodríguez H, Rossolini GM, Gonzalez T, Li J, Glick BR. Isolation of a gene from Burkholderia cepacia IS-16 encoding a protein that facilitates phosphatase activity. Curr Microbiol 2000; 40:362-6. [PMID: 10827277 DOI: 10.1007/s002840010071] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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: 10/28/2022]
Abstract
A genomic library from Burkholderia cepacia IS-16 was constructed in Escherichia coli by partial Sau3AI digestion of the chromosomal DNA, with the plasmid vector Bluescript SK. This library was screened for clones able to grow as green stained colonies on selective medium developed for detecting phosphatase-positive colonies. Three green-stained clones (pFS1, pFS2, and pFS3) carried recombinant plasmids harboring DNA inserts of 5.0, 8.0, and 0.9 kb, respectively. DNA hybridization experiments demonstrated the presence of overlapping DNA fragments in the three clones and that these three clones were all derived from Burkholderia cepacia IS-16 genomic DNA. DNA sequence analysis, together with polyacrylamide gels of proteins encoded by E. coli containing pFS3, suggested that the isolated 0. 9-kb DNA fragment encodes the functional portion of a phosphate transport protein.
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Affiliation(s)
- H Rodríguez
- Department of Microbiology, Cuban Research Institute on Sugarcane By-Products, Havana, Cuba
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49
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Bernal J, Harmony T, Rodríguez M, Reyes A, Yáñez G, Fernández T, Galán L, Silva J, Fernández- Bouzas A, Rodríguez H, Guerrero V, Marosi E. Auditory event-related potentials in poor readers. Int J Psychophysiol 2000; 36:11-23. [PMID: 10700619 DOI: 10.1016/s0167-8760(99)00092-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [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: 10/16/2022]
Abstract
Although poor readers (PR) are considered the major group among reading-disabled children, there are not event-related potentials (ERP) studies reported of PR on the subject. In this study, attentional and memory processes were studied in an auditory oddball task in PR and normal controls. ERP to auditory stimuli were recorded in 19 leads of the 10/20 system, using linked earlobes as references, in 20 normal children (10 female) and 20 PR (10 female) of the same age (10-12 years old). Two pure tones (1000 and 3000 Hz) were used in an oddball paradigm. No significant differences were observed in the amplitudes and latencies of N100 between the groups. However, N200 to frequent stimuli and P200 to both frequent and infrequent stimuli were of higher amplitude in poor readers than in normal children. There were no differences between groups in the latency and amplitude of P300. The results suggest that PR use more attentional resources in the components occurring before P300 to both frequent and infrequent stimuli than the normal children, and this finding is particularly marked for PR girls.
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Affiliation(s)
- J Bernal
- Lab. de Neurometría, Proy. de Neurociencias, ENEP Iztacala, UNAM, Manuel Fernando Soto No. 68, Col. Constitución de la República, 07469, Mexico, Mexico.
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50
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Del Campo JA, Moreno J, Rodríguez H, Vargas MA, Rivas J, Guerrero MG. Carotenoid content of chlorophycean microalgae: factors determining lutein accumulation in Muriellopsis sp. (Chlorophyta). J Biotechnol 2000; 76:51-9. [PMID: 10784296 DOI: 10.1016/s0168-1656(99)00178-9] [Citation(s) in RCA: 241] [Impact Index Per Article: 10.0] [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: 11/20/2022]
Abstract
Fifteen strains of chlorophycean microalgae have been investigated with regard to their carotenoid profile. Lutein, beta-carotene and violaxanthin were present in virtually all of the strains, lutein, in general, being the most abundant carotenoid, whereas canthaxanthin and astaxanthin were found in some strains only. Chlorella fusca SAG 211-8b, Chlorococcum citriforme SAG 62.80, Muriellopsis sp., Neospongiococcum gelatinosum SAG B 64.80 and Chlorella zofingiensis CCAP 211/14 exhibited high lutein levels, the latter strain containing in addition substantial amounts of astaxanthin. Muriellopsis sp. was further characterized, since besides a high lutein content (up to 35 mg l(-1) culture), it had the highest growth rate (up to 0.17-0.23 h(-1)) and maximal standing cell density (up to 8 x 10(10) cells l(-1) culture). These levels of lutein are in the range of those reported for astaxanthin in Haematococcus and for beta-carotene in Dunaliella, microalgae of recognized interest for the production of these carotenoids. Lutein content of Muriellopsis sp. increased during the exponential phase of growth, with the highest value being recorded in the early stationary phase. Maximum levels of lutein in Muriellopsis sp. cultures were recorded at 20-40 mM NaNO3, 2-100 mM NaCl, 460 micromol photon m(-2) s(-1), pH 6.5 and 28 degrees C, conditions which were, in general, also optimal for cell growth. Growth-limiting conditions, such as pH values of 6 or 9 and a temperature of 33 degrees C, were found to stimulate carotenogenesis in Muriellopsis sp. This strain represents a potential source of lutein, a commercially interesting carotenoid of application in aquaculture and poultry farming, as well as in the prevention of cancer and diseases related to retinal degeneration.
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Affiliation(s)
- J A Del Campo
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Cientificas-Universidad de Sevilla, Centro de Investigaciones Cientificas Isla de la Cartuja, Seville, Spain
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