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Sánchez CA, De Vries E, Gil F, Niño ME. Prediction model for lower limb amputation in hospitalized diabetic foot patients using classification and regression trees. Foot Ankle Surg 2024:S1268-7731(24)00068-7. [PMID: 38575484 DOI: 10.1016/j.fas.2024.03.007] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 03/01/2024] [Accepted: 03/16/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND The decision to perform amputation of a limb in a patient with diabetic foot ulcer (DFU) is not an easy task. Prediction models aim to help the surgeon in decision making scenarios. Currently there are no prediction model to determine lower limb amputation during the first 30 days of hospitalization for patients with DFU. METHODS Classification And Regression Tree analysis was applied on data from a retrospective cohort of patients hospitalized for the management of diabetic foot ulcer, using an existing database from two Orthopaedics and Traumatology departments. The secondary analysis identified independent variables that can predict lower limb amputation (mayor or minor) during the first 30 days of hospitalization. RESULTS Of the 573 patients in the database, 290 feet underwent a lower limb amputation during the first 30 days of hospitalization. Six different models were developed using a loss matrix to evaluate the error of not detecting false negatives. The selected tree produced 13 terminal nodes and after the pruning process, only one division remained in the optimal tree (Sensitivity: 69%, Specificity: 75%, Area Under the Curve: 0.76, Complexity Parameter: 0.01, Error: 0.85). Among the studied variables, the Wagner classification with a cut-off grade of 3 exceeded others in its predicting capacity. CONCLUSIONS Wagner classification was the variable with the best capacity for predicting amputation within 30 days. Infectious state and vascular occlusion described indirectly by this classification reflects the importance of taking quick decisions in those patients with a higher compromise of these two conditions. Finally, an external validation of the model is still required. LEVEL OF EVIDENCE III.
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Affiliation(s)
- C A Sánchez
- Department of Orthopedics and Traumatology, Department of Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Hospital de la Samaritana, Bogotá, Colombia; Department of Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Bogotá, Colombia.
| | - E De Vries
- Department of Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - F Gil
- Department of Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - M E Niño
- Department of Orthopedics and Traumatology, Pontificia Universidad Javeriana, Foot and Ankle Surgery, Clínica del Country and Hospital Militar Central, Bogotá, Colombia
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Quiroga B, Soler MJ, Ortiz A, Jarava Mantecón CJ, Gomes Pérez VO, Bordils A, Lacueva J, Marin Franco AJ, Delgado Conde P, Muñoz Ramos P, Calderón González C, Cazorla López JM, Sanchez-Rodriguez J, Sánchez Horrillo A, Monzón Vázquez TR, Leyva A, Rojas J, Gansevoort RT, de Sequera P, Rodríguez MTJ, Valverde RL, Carretero MP, Díaz MO, Tocora DG, Suárez ER, Santolaya AJS, Cobo PA, Talavan T, Calero RC, Gracia-Iguacel C, González-Parra E, Pereira M, Martin-Cleary C, Ramos-Verde A, Giorgi M, Sánchez C, Giraldo YG, Horrillo AS, Suárez PR, Perpén AF, Ramos AF, Villanueva LS, Cortiñas A, Arias PAD, Cárdenas AC, de Santos A, Núñez A, Cuadrado GB, de Gante LM, Repollet R, Polo CR, Moreso F, Azancot MA, Ramos N, Toapanta OBN, Cidraque I, Bermejo S, Agraz I, Prat O, Medina C, Pardo E, Prat O, Saiz A, Vila MAM, Guldris SC, Granados NM, Cabo MJC, Alarcón WL, Sánchez SP, Alexandru S, Suarez LGP, Saico SP, Tapia MP, Zamora R, Hernández RS, Osorio LR, García-Fernández N, Moreno PLM, González NA, Ortiz AS, Iñarrea MNB, Cabrera SS, López RO, Peregrí CM, Morales MLA, Cabello MDN, Mazuecos A, García T, Narváez C, Orellana C, Márquez MGS, Novillo CL, Ganga PLQ, Carrión FV, Herrera ALG, Castro NB, Cendrero RMRC, Hidalgo-Barquero MVM, Gallego RH, Alvarez Á, Leo EV, León JLP, García MAM, Jiménez BG, Pérez VOG, de Dios Ramiro Moya J, Espinosa DL, Herrador AJ, Zurita MN, Álvarez LD, Martínez ÁG, Arroyo SB, Fernández RR, Vargas MJS, Casero RC, Useche G, García AB, Díaz ABM, de Miguel CS, Palacios Á, Henningsmeyer B, Calve EO, Moya JL, Sato Y, Marín MS, Tejedor S, Vaquera SM, di Riso MC, Torres I, Alfaro G, Halauko O, Rifai FEL, Martínez AD, Ávila PJ, Sánchez CA, Sainz MS, Martín JMB, del Río García L, Canga JLP, Ochoa PMV, Pacios LM, Machado LL, Morales AQ, Cavalotti IM, Zorita IN, López SO, González SO, Montañez CS, Rubio AB, Del Peso Gilsanz G, Gonzalez MO, Villanueva RS, Oliva MOL, Varela JC, Enríquez AG, Casas CC, Alonso PO, Tabares LG, Barreiro JML, Solla LP, Gándara A, de la Garza WN, Fleming FF, Goyanes MGR, Feijoo CC, Plaza MMM, Juan CB, de la Fuente GDA, del Valle KP, Contreras FJP, Lara NB, Ferri DG, de Bustillo Llorente EM, Rodríguez EG, De La Manzanara Perez VL, Arevalo MC, Calvo JAH, Carratalá MRL, Rodríguez LMM, Salazar MS, Prieto BB, Pérez JMP, Paraíso AG, Huarte E, Lanau M, Campos RA, Ubé JM, Godoy IB, Aguilera ET, Alea RT, Del Rosario Saldaña MS, Salgueira M, Aresté N, de los Ángeles Rodríguez M, Collantes R, Martínez AI, Moyano MJ, Víbora EJ, Gash SC, Martínez LR, Cervera MCA, De Tomas MTR, Prieto BA, Toyos C, Del Rio JM, Acosta AR, Zamacona AC, Martin MIJ, Ortega SB, Ruiz MIG, Rubio AH, Ledesma PG, Alvarez AG, Poch E, Cucchiari D, Monzo JB, Cabrera BE, Hernández APR, Rebollo MSG, Hernández JMR, González AY, Alonso JC, Más AM, Calvé M, Cardona MG, Balaguer VC, Pesquera JIM, de la Rosa EC, Santarelli DR, Garcia AS, Martin-Caro AC, Santamaria IM, Cervienka M, de la Pisa AMU, Monzon LS, Anachuri KA, Garcia EH, Gomez VO, Estupiñán RS, Amado FV, Borges PP, Beloso MD, Alonso FA, Felpete NP, Ameneiro AM, Mera MC, Casares BG, Larrondo SZ, Kareaga NM, del Valle AISS, García ARM, Linaza BV, del Toro Espinosa N, Perico PE, Oliva JMS, Manrique J, Castaño I, Purroi C, Gómez N, Mansilla C, Utzurrum A, de Arellano Serna MR, Perich LG, Rincón MM, De La Manzanara Perez VL, Arevalo MC, Calvo JAH, Villoria JG, De Salinas APM. Humoral response after the fourth dose of the SARS-CoV-2 vaccine in the CKD spectrum: a prespecified analysis of the SENCOVAC study. Nephrol Dial Transplant 2022; 38:969-981. [PMID: 36423334 DOI: 10.1093/ndt/gfac307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Indexed: 11/27/2022] Open
Abstract
Abstract
Background
There is scarce evidence on fourth doses of SARS-CoV-2 vaccines in chronic kidney disease (CKD) patients. We have evaluated the humoral response and effectivity of the fourth dose in the CKD spectrum: non-dialysis CKD (ND-CKD), hemodialysis (HD), peritoneal dialysis (PD) and kidney transplant (KT) recipients.
Methods
This is a prespecified analysis of the prospective, observational, multicentric SENCOVAC study. In patients with CKD who had received a complete initial vaccination and one or two boosters and had anti-Spike antibody determinations 6 and 12 months after the initial vaccination, we analyzed factors associated to persistent negative humoral response and to higher anti-Spike antibody titers as well as the efficacy of vaccination on COVID-19 severity.
Results
Of 2186 patients (18% KT, 8% PD, 69% HD and 5% ND-CKD), 30% had received a fourth dose. The fourth dose increased anti-Spike antibody titers in HD (P = 0.001) and ND-CKD (P = 0.014) patients and seroconverted 72% of previously negative patients. Higher anti-Spike antibody titers at 12 months were independently associated to repeated exposure to antigen (fourth dose, previous breakthrough infections), previous anti-Spike antibody titers and not being a KT. Breakthrough COVID-19 was registered in 137 (6%) patients, of whom 5% required admission. Admitted patients had prior titers below 620 UI/ml and median values were lower (P = 0.020) than in non-admitted patients.
Conclusions
A fourth vaccine dose increased anti-Spike antibody titers or seroconverted many CKD patients, but those with the highest need for a vaccine booster (i.e. those with lower pre-booster antibody titers or KT recipients) derived the least benefit in terms of antibody titers. Admission for breakthrough COVID-19 was associated with low anti-Spike antibody titers.
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Affiliation(s)
- Borja Quiroga
- IIS-La Princesa. Nephrology Department, Hospital Universitario de la Princesa , Madrid ( Spain )
| | - María José Soler
- Nephrology Department, Vall d'Hebrón University Hospital , 08035 Barcelona ( Spain )
- RICORS2040 (Kidney Disease )
| | - Alberto Ortiz
- RICORS2040 (Kidney Disease )
- IIS-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III , Madrid ( Spain )
| | | | | | | | | | | | | | - Patricia Muñoz Ramos
- Nephrology Department, Hospital Universitario Infanta Leonor – Universidad Complutense de Madrid ( Spain )
| | | | | | - Jinny Sanchez-Rodriguez
- IIS-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III , Madrid ( Spain )
| | - Ana Sánchez Horrillo
- IIS-La Princesa. Nephrology Department, Hospital Universitario de la Princesa , Madrid ( Spain )
| | | | - Alba Leyva
- R&D Department , VIRCELL SL, Granada ( Spain )
| | - José Rojas
- R&D Department , VIRCELL SL, Granada ( Spain )
| | - Ron T Gansevoort
- Dept. Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Patricia de Sequera
- RICORS2040 (Kidney Disease )
- Nephrology Department, Hospital Universitario Infanta Leonor – Universidad Complutense de Madrid ( Spain )
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Quiroga B, Soler MJ, Ortiz A, Orero E, Tejedor S, Mantecón CJJ, Gómez Pérez VO, Marín Franco AJ, Alfaro Sánchez C, Puerta Carretero M, Jaldo Rodríguez MT, Carnerero Di Riso MA, Martínez S, González CC, Cervienka M, Macías Carmona N, Arroyo D, Pérez Del Valle KM, de Arriba G, Mazuecos A, Cazorla JM, Pereira M, González Parra E, Sánchez Márquez MG, Lancho Novillo C, Toyos Ruiz C, Aguilar Cervera MC, Muñoz Ramos P, Sánchez Horrillo A, Jimeno Martín I, Toapanta N, Cigarrán Guldris S, Folgueiras López M, Valero San Cecilio R, Villacorta Linaza B, Minguela Pesquera I, Santana Estupiñán R, Zamora R, Soriano S, Muñoz de Bustillo E, Pizarro Sánchez MS, Martínez Puerto AI, Yugueros A, Muñiz Pacios L, Leyva A, Rojas J, Gansevoort RT, de Sequera P. Humoral Response to Third Dose of SARS-CoV-2 Vaccines in the CKD Spectrum. Clin J Am Soc Nephrol 2022; 17:872-876. [PMID: 35551070 PMCID: PMC9269649 DOI: 10.2215/cjn.01770222] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Borja Quiroga
- Instituto de Investigación Sanitaria-La Princesa, Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | - María José Soler
- Nephrology Department, Vall d'Hebrón University Hospital, Barcelona, Spain .,Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS), RICORS2040 (Kidney Disease), Spain
| | - Alberto Ortiz
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS), RICORS2040 (Kidney Disease), Spain .,Nephrology Department, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, Red de Investigación Renal, Instituto de Investigación Carlos III, Madrid, Spain
| | | | | | | | | | | | | | - Marta Puerta Carretero
- Nephrology Department, Hospital Universitario Infanta Leonor-Universidad Complutense de Madrid, Spain
| | | | | | | | | | | | | | - David Arroyo
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | | | | | | | | | - Mónica Pereira
- Nephrology Department, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, Red de Investigación Renal, Instituto de Investigación Carlos III, Madrid, Spain
| | - Emilio González Parra
- Nephrology Department, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, Red de Investigación Renal, Instituto de Investigación Carlos III, Madrid, Spain
| | | | | | | | | | - Patricia Muñoz Ramos
- Instituto de Investigación Sanitaria-La Princesa, Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | - Ana Sánchez Horrillo
- Instituto de Investigación Sanitaria-La Princesa, Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | | | - Néstor Toapanta
- Nephrology Department, Vall d'Hebrón University Hospital, Barcelona, Spain
| | | | | | - Rosalía Valero San Cecilio
- Nephrology Department, Hospital Marqués de Valdecilla, University of Cantabria, Instituto de Investigación Marqués de Valedecilla, Santander, Spain
| | | | | | - Raquel Santana Estupiñán
- Nephrology Department, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | - Rocío Zamora
- Nephrology Department, Hospital Universitario General de Villalba, Spain
| | | | | | | | | | - Alejandra Yugueros
- Nephrology Department, Hospital Lluis Alcanyis De Xátiva, Valencia, Spain
| | - Laura Muñiz Pacios
- Nephrology Department, Hospital Universitario Infanta Cristina, Madrid, Spain
| | - Alba Leyva
- Research and Development Department, Vircell Sociedad Limitada, Granada, Spain
| | - José Rojas
- Research and Development Department, Vircell Sociedad Limitada, Granada, Spain
| | - Ron T Gansevoort
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Sánchez CA, Asuero MS. [Controversy over the use of hydroxyethyl starch solutions. Is the use of low molecular weight hydroxyethyl starch contraindicated?]. Rev Esp Anestesiol Reanim 2014; 61:299-303. [PMID: 24838121 DOI: 10.1016/j.redar.2014.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 04/07/2014] [Indexed: 06/03/2023]
Affiliation(s)
- C A Sánchez
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Elda Virgen de la Salud, Elda, Alicante, España.
| | - M S Asuero
- Servicio de Anestesiología y Reanimación, Hospital Universitario Ramón y Cajal, Madrid, España
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Van Oppen MJH, Mieog JC, Sánchez CA, Fabricius KE. Diversity of algal endosymbionts (zooxanthellae) in octocorals: the roles of geography and host relationships. Mol Ecol 2005; 14:2403-17. [PMID: 15969723 DOI: 10.1111/j.1365-294x.2005.02545.x] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.5] [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: 11/27/2022]
Abstract
The presence, genetic identity and diversity of algal endosymbionts (Symbiodinium) in 114 species from 69 genera (20 families) of octocorals from the Great Barrier Reef (GBR), the far eastern Pacific (EP) and the Caribbean was examined, and patterns of the octocoral-algal symbiosis were compared with patterns in the host phylogeny. Genetic analyses of the zooxanthellae were based on ribosomal DNA internal transcribed spacer 1 (ITS1) region. In the GBR samples, Symbiodinium clades A and G were encountered with A and G being rare. Clade B zooxanthellae have been previously reported from a GBR octocoral, but are also rare in octocorals from this region. Symbiodinium G has so far only been found in Foraminifera, but is rare in these organisms. In the Caribbean samples, only Symbiodinium clades B and C are present. Hence, Symbiodinium diversity at the level of phylogenetic clades is lower in octocorals from the Caribbean compared to those from the GBR. However, an unprecedented level of ITS1 diversity was observed within individual colonies of some Caribbean gorgonians, implying either that these simultaneously harbour multiple strains of clade B zooxanthellae, or that ITS1 heterogeneity exists within the genomes of some zooxanthellae. Intracladal diversity based on ITS should therefore be interpreted with caution, especially in cases where no independent evidence exists to support distinctiveness, such as ecological distribution or physiological characteristics. All samples from EP are azooxanthellate. Three unrelated GBR taxa that are described in the literature as azooxanthellate (Junceella fragilis, Euplexaura nuttingi and Stereonephthya sp. 1) contain clade G zooxanthellae, and their symbiotic association with zooxanthellae was confirmed by histology. These corals are pale in colour, whereas related azooxanthellate species are brightly coloured. The evolutionary loss or gain of zooxanthellae may have altered the light sensitivity of the host tissues, requiring the animals to adopt or reduce pigmentation. Finally, we superimposed patterns of the octocoral-algal symbiosis onto a molecular phylogeny of the host. The data show that many losses/gains of endosymbiosis have occurred during the evolution of octocorals. The ancestral state (azooxanthellate or zooxanthellate) in octocorals remains unclear, but the data suggest that on an evolutionary timescale octocorals can switch more easily between mixotrophy and heterotrophy compared to scleractinian corals, which coincides with a low reliance on photosynthetic carbon gain in the former group of organisms.
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Affiliation(s)
- M J H Van Oppen
- Australian Institute of Marine Science, PMB no. 3, Townsville MC, Qld 4810, Australia.
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Zazueta C, Reyes-Vivas H, Zafra G, Sánchez CA, Vera G, Chávez E. Mitochondrial permeability transition as induced by cross-linking of the adenine nucleotide translocase. Int J Biochem Cell Biol 1998; 30:517-27. [PMID: 9675885 DOI: 10.1016/s1357-2725(97)00157-x] [Citation(s) in RCA: 20] [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: 11/17/2022]
Abstract
Mitochondrial permeability transition is caused by the opening of a transmembrane pore whose chemical nature has not been well established yet. The present work was aimed to further contribute to the knowledge of the membrane entity comprised in the formation of the non-specific channel. The increased permeability was established by analyzing the inability of rat kidney mitochondria to take up and accumulate Ca2+, as well as their failure to build up a transmembrane potential, after the cross-linking of membrane proteins by copper plus ortho-phenanthroline. To identify the cross-linked proteins, polyacrylamide gel electrophoresis was performed. The results are representative of at least three separate experiments. It is indicated that 30 microM Cu2+ induced the release of 4.3 nmol Ca2+ per mg protein. However, in the presence of 100 microM ortho-phenanthroline only 2 microM Cu2+ was required to attain the total release of the accumulated Ca2+; it should be noted that such a reaction is not inhibited by cyclosporin. The increased permeability corresponds to cross-linking of membrane proteins in which approximately 4 nmol thiol groups per mg protein appear to be involved. Such a linking process is inhibited by carboxyatractyloside. By using the fluorescent probe eosin-5-maleimide the label was found in a cross-linking 60 kDa dimer of two 30 kDa monomers. From the data presented it is concluded that copper-o-phenanthroline induces the intermolecular cross-linking of the adenine nucleotide translocase which in turn is converted to non-specific pore.
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Affiliation(s)
- C Zazueta
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Mexico, D.F., Mexico
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Verástegui MA, Sánchez CA, Heredia NL, García-Alvarado JS. Antimicrobial activity of extracts of three major plants from the Chihuahuan desert. J Ethnopharmacol 1996; 52:175-177. [PMID: 8771460 DOI: 10.1016/0378-8741(96)84802-1] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Dilution methods were employed to determine the effect of ethanolic extracts of Agave lecheguilla Torr. (Agavaceae), Baccharis glutinosa Pers. (Compositae) and Larrea tridentata (DC.) Cov. (Zygophyllaceae) on growth of yeasts, molds and bacteria. The three extracts analyzed showed good antimicrobial activity against more than one organism. The minimal inhibitory concentration of the extracts was also determined.
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Affiliation(s)
- M A Verástegui
- Departamento de Microbiología e Immunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo Leön, San Nicoläs, Mëxico
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