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McCarter J, Martin B, Coello P, Brann C. Exploring a Masters of Business Administration's Impact on Surgical Subspecialists. Orthop Rev (Pavia) 2024; 16:116964. [PMID: 38751449 PMCID: PMC11093721 DOI: 10.52965/001c.116964] [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: 01/29/2024] [Accepted: 02/18/2024] [Indexed: 05/18/2024] Open
Abstract
Objectives and Study Design As healthcare evolves, more physicians are taking on administrative roles and pursuing additional graduate education, particularly obtaining a Master's in Business Administration (MBA.) To facilitate a better understanding of these practitioners, we conducted a comparative study of MD/MBA clinicians in multiple surgical fields. Methods This study aims to compare clinicians with MD/MBAs across multiple surgical subspecialties. Reported metrics include demographics, MBA program structure, salary changes, and professional pursuits. Nine studies were obtained from the PubMed, Cochrane, and Embase databases. Four studies met the inclusion criteria and were analyzed. Results The majority of MD/MBA degree holders in plastic surgery (95%), orthopedic surgery (89-96%), and ophthalmology (80%) are male. Ophthalmology (37%) demonstrates the highest number of subjects obtaining an MBA via a synchronous MD/MBA. Most clinicians return to clinical practice after degree completion and show high levels of non-clinical pursuits after receiving their MBAs. Conclusions Though there appear to be differences across surgical subspecialties regarding how an MBA is applied, most maintain clinical duties. Of those that do not, the largest portion transition to administrative duties, consulting, entrepreneurial endeavors, or other professional opportunities. Despite the financial ambiguity of an MBA, physicians value the transformative experience it offers.
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Adsit E, Albright J, Algan S, Beck J, Bowen RE, Brey J, Marc Cardelia J, Clark C, Coello P, Crepeau A, Edmonds E, Ellington M, Ellis HB, Fabricant PD, Frank JS, Ganley TJ, Green DW, Gupta A, Heyworth B, Kemper WC, Latz K, Mansour A, Mayer S, McKay SD, Milewski MD, Niu E, Pacicca DM, Parikh SN, Pupa L, Rhodes J, Saper M, Schmale GA, Schmitz M, Shea K, Silverstein RS, Storer S, Wilson PL. Relationship Between Age and Pathology With Treatment of Pediatric and Adolescent Discoid Lateral Meniscus: A Report From the SCORE Multicenter Database. Am J Sports Med 2023; 51:3493-3501. [PMID: 37899536 PMCID: PMC10623608 DOI: 10.1177/03635465231206173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 07/20/2023] [Indexed: 10/31/2023]
Abstract
BACKGROUND Surgical treatment options of discoid lateral meniscus in pediatric patients consist of saucerization with or without meniscal repair, meniscocapular stabilization, and, less often, subtotal meniscectomy. PURPOSE To describe a large, prospectively collected multicenter cohort of discoid menisci undergoing surgical intervention, and further investigate corresponding treatment of discoid menisci. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A multicenter quality improvement registry (16 institutions, 26 surgeons), Sports Cohort Outcomes Registry, was queried. Patient characteristics, discoid type, presence and type of intrasubstance meniscal tear, peripheral rim instability, repair technique, and partial meniscectomy/debridement beyond saucerization were reviewed. Discoid meniscus characteristics were compared between age groups (<14 and >14 years old), based on receiver operating characteristic curve, and discoid morphology (complete and incomplete). RESULTS In total, 274 patients were identified (mean age, 12.4 years; range, 3-18 years), of whom 55.6% had complete discoid. Meniscal repairs were performed in 55.1% of patients. Overall, 48.5% of patients had rim instability and 36.8% had >1 location of peripheral rim instability. Of the patients, 21.5% underwent meniscal debridement beyond saucerization, with 8.4% undergoing a subtotal meniscectomy. Patients <14 years of age were more likely to have a complete discoid meniscus (P < .001), peripheral rim instability (P = .005), and longitudinal tears (P = .015) and require a meniscal repair (P < .001). Patients ≥14 years of age were more likely to have a radial/oblique tear (P = .015) and require additional debridement beyond the physiologic rim (P = .003). Overall, 70% of patients <14 years of age were found to have a complete discoid meniscus necessitating saucerization, and >50% in this young age group required peripheral stabilization/repair. CONCLUSION To preserve physiological "normal" meniscus, a repair may be indicated in >50% of patients <14 years of age but occurred in <50% of those >14 years. Additional resection beyond the physiological rim may be needed in 15% of younger patients and 30% of those aged >14 years.
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Affiliation(s)
| | | | - Jay Albright
- Department of Orthopedics, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Sheila Algan
- Department of Orthopedic Surgery, Oklahoma Children's Hospital, Oklahoma City, Oklahoma, USA
| | | | - Richard E. Bowen
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA; Orthopedic Institute for Children's Center for Sports Medicine, Los Angeles, California, USA
| | - Jennifer Brey
- Department of Orthopedics, Norton Children's Orthopedics of Louisville, Louisville, Kentucky, USA
| | - J. Marc Cardelia
- Department of Orthopedics and Sports Medicine, Children's Hospital of the King's Daughters, Norfolk, Virginia, USA
| | - Christian Clark
- OrthoCarolina Pediatric Orthopaedic Center, Charlotte, North Carolina, USA)
| | | | - Allison Crepeau
- Elite Sports Medicine at Connecticut Children's, Hartford, Connecticut, USA; Division of Sports Medicine, Department of Orthopedics, UConn Health, Farmington, Connecticut, USA
| | - Eric Edmonds
- Division of Orthopaedic Surgery, Rady Children's Hospital, San Diego, California, USA
| | - Matthew Ellington
- Department of Orthopedics, Central Texas Pediatric Orthopedics, Austin, Texas, USA; Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Henry B. Ellis
- Investigation performed at Scottish Rite for Children, University of Texas Southwestern Medical Center, Dallas, USA
| | - Peter D. Fabricant
- Division of Pediatric Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA; Weill Cornell Medical College, New York, New York
| | - Jeremy S. Frank
- Division of Pediatric Orthopaedics and Spinal Deformities, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - Theodore J. Ganley
- Division of Orthopaedics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Daniel W. Green
- Division of Pediatric Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA
| | - Andrew Gupta
- Division of Pediatric Orthopaedics and Spinal Deformities, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - Benton Heyworth
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - W. Craig Kemper
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Kevin Latz
- Department of Orthopedics-Sports Medicine, Children's Mercy, Kansas City, Missouri, USA
| | - Alfred Mansour
- Department of Orthopedic Surgery, UTHealth Houston, McGovern Medical School, Houston, Texas, USA
| | - Stephanie Mayer
- Department of Orthopedics, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Scott D. McKay
- Baylor College of Medicine, Houston, Texas, USA; Texas Children's Hospital, Houston, Texas, USA
| | - Matthew D. Milewski
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Emily Niu
- Department of Orthopedic Surgery and Sports Medicine, Children's National Medical Center, Washington, DC, USA
| | - Donna M. Pacicca
- Department of Orthopedics-Sports Medicine, Children's Mercy, Kansas City, Missouri, USA
| | - Shital N. Parikh
- Division of Orthopaedic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Lauren Pupa
- Baylor College of Medicine, Houston, Texas, USA
| | - Jason Rhodes
- Department of Orthopedics, Children's Hospital Colorado, Aurora, Colorado, USA
| | | | - Gregory A. Schmale
- Department of Orthopedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington, USA
| | - Matthew Schmitz
- San Antonio Military Medical Center, San Antonio, Texas, USA
| | - Kevin Shea
- Department of Orthopaedics, Stanford University School of Medicine, Stanford, California, USA
| | - Rachel S. Silverstein
- Baylor College of Medicine, Houston, Texas, USA; Texas Children's Hospital, Houston, Texas, USA
| | - Stephen Storer
- Division of Pediatric Orthopaedics and Spinal Deformities, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - Philip L. Wilson
- University of Texas Southwestern Medical Center, Dallas, Texas, USA; Scottish Rite for Children, Dallas, Texas, USA)
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Ruiz-Gayosso A, Rodríguez-Cruz I, Martínez-Barajas E, Coello P. Phosphorylation of DPE2 at S786 partially regulates starch degradation. Plant Physiol Biochem 2022; 193:70-77. [PMID: 36335878 DOI: 10.1016/j.plaphy.2022.10.024] [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: 08/17/2022] [Revised: 10/10/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
In plants, transitory starch is synthetized during the day and degraded at night to provide the continuous carbon needed for growth and development. Starch metabolism is highly coordinated, as the starch degradation rate must be coupled to the amount of starch synthetized during the day. Maltose is one of the chloroplastic products obtained from starch degradation, and maltose is exported to the cytosol where disproportionating enzyme-2 (DPE2) is responsible for its metabolism. The amount of DPE2 remained unchanged throughout the day, but its activity notably increased at the end of the day (7 p.m.), suggesting that posttranslational modification drives the mechanism underlying the regulatory activity of this enzyme. Sucrose nonfermenting-related kinase-1 (SnRK1), a protein kinase that controls the activity of several metabolic enzymes, was able to interact and phosphorylate DPE2 at three different residues localized in the α-glucanotransferase domain. This phosphorylation acts as a positive regulator of DPE2, increasing its activity. Complementation of dpe2-deficient mutants with the wild-type (WT) and S786A forms of DPE2 showed that the nonphosphorylated form of DPE2 only partially restored starch degradation, suggesting that phosphorylation at S786 is involved in enzyme regulation.
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Affiliation(s)
- A Ruiz-Gayosso
- Departamento de Bioquímica, Facultad de Química, UNAM, Cd. Mx, 04510, Mexico
| | - I Rodríguez-Cruz
- Departamento de Bioquímica, Facultad de Química, UNAM, Cd. Mx, 04510, Mexico
| | - E Martínez-Barajas
- Departamento de Bioquímica, Facultad de Química, UNAM, Cd. Mx, 04510, Mexico
| | - P Coello
- Departamento de Bioquímica, Facultad de Química, UNAM, Cd. Mx, 04510, Mexico.
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Pierre R, Vieira M, Vázquez R, Ninomiya I, Messere G, Daza W, Dadan S, Higuera M, Sifontes L, Harris P, Gana J, Rodríguez M, Vasquez M, González M, Rivera J, Gonzales J, Angulo D, Cetraro M, Del Compare M, López K, Navarro D, Calva R, Wagener M, Zablah R, Carias A, Calderón O, Vera-Chamorro J, Toca M, Dewaele M, Iglesias C, Delgado L, León K, Hassan I, Ussher F, Follett F, Bernedo V, Grinblat V, Agüero N, Oviedo C, García A, Salazar A, Coello P, Furnes R, Menchaca M, Fernández M, Khoury A, Rojo C, Fernández S, Morao C. Prevalence of eosinophilic esophagitis: A multicenter study on a pediatric population evaluated at thirty-six Latin American gastroenterology centers. Revista de Gastroenterología de México (English Edition) 2019. [DOI: 10.1016/j.rgmxen.2018.10.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Pierre R, Vieira M, Vázquez R, Ninomiya I, Messere G, Daza W, Dadan S, Higuera M, Sifontes L, Harris P, Gana JC, Rodríguez M, Vasquez M, González M, Rivera J, Gonzales J, Angulo D, Cetraro MD, Del Compare M, López K, Navarro D, Calva R, Wagener M, Zablah R, Carias A, Calderón O, Vera-Chamorro JF, Toca MC, Dewaele MR, Iglesias C, Delgado L, León K, Hassan I, Ussher F, Follett F, Bernedo V, Grinblat V, Agüero N, Oviedo C, García AG, Salazar A, Coello P, Furnes R, Menchaca M, Fernández M, Khoury A, Rojo C, Fernández S, Morao C. Prevalence of eosinophilic esophagitis: A multicenter study on a pediatric population evaluated at thirty-six Latin American gastroenterology centers. Rev Gastroenterol Mex (Engl Ed) 2019; 84:427-433. [PMID: 30292584 DOI: 10.1016/j.rgmx.2018.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/02/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION AND OBJECTIVE Eosinophilic esophagitis is a chronic, immune-mediated disease described in case series and publications worldwide. Over the past twenty years, the authors of different studies have attempted to evaluate its incidence and prevalence. The objetive of the present study was to estimate the prevalence of eosinophilic esophagitis in a group of children seen at 36 pediatric gastroenterology centers in ten Latin American countries. MATERIALS AND METHODS A multicenter, observational, and cross-sectional study was conducted that estimated the period prevalence of eosinophilic esophagitis in children seen at outpatient consultation and that underwent diagnostic upper gastrointestinal endoscopy for any indication at 36 centers in 10 Latin American countries, within a 3-month time frame. RESULTS Between April and June 2016, 108 cases of eosinophilic esophagitis were evaluated. Likewise, an average of 29,253 outpatient consultations and 4,152 diagnostic upper gastrointestinal endoscopies were carried out at the 36 participating centers. The period prevalence of eosinophilic esophagitis in the population studied (n=29,253) was 3.69 cases×1,000 (95% CI: 3.04 to 4.44), and among the children that underwent routine upper gastrointestinal endoscopy (n=4,152), it was 26x1,000 (95% CI: 22.6 to 29.4). CONCLUSIONS The general period prevalence of eosinophilic esophagitis in a group of children evaluated at 36 Latin American pediatric gastroenterology centers was 3.69×1,000, and in the children that underwent endoscopy, it was 26×1,000. There was important prevalence variability between the participating countries and centers. The present analysis is the first study conducted on the prevalence of pediatric eosinophilic esophagitis in Latin America.
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Affiliation(s)
- R Pierre
- Clínica Razetti, Barquisimeto, Venezuela.
| | - M Vieira
- Hospital Pequeño Príncipe, Curitiba, Brasil
| | - R Vázquez
- Hospital Infantil de México Federico Gómez, México DF, México
| | - I Ninomiya
- Hospital Italiano, Buenos Aires, Argentina
| | - G Messere
- Hospital Nacional Alejandro Posadas, Buenos Aires, Argentina
| | - W Daza
- Unidad de Gastroenterología Pediátrica y Nutrición, Gastronutriped, Bogotá, Colombia
| | - S Dadan
- Unidad de Gastroenterología Pediátrica y Nutrición, Gastronutriped, Bogotá, Colombia
| | - M Higuera
- Unidad de Gastroenterología Pediátrica y Nutrición, Gastronutriped, Bogotá, Colombia
| | - L Sifontes
- Centro Médico El Valle, Porlamar, Venezuela
| | - P Harris
- Pontificia Universidad Católica, Santiago, Chile
| | - J C Gana
- Pontificia Universidad Católica, Santiago, Chile
| | - M Rodríguez
- Hospital de Niños Dr. J.M. de Los Ríos, Caracas, Venezuela
| | - M Vasquez
- Hospital Universitario de Pediatría Dr. Agustín Zubillaga, Barquisimeto, Venezuela
| | - M González
- Hospital Dr. Roberto del Río, Santiago, Chile
| | - J Rivera
- Instituto Nacional de Salud del Niño, Lima, Perú; Clínica Ricardo Palma, Lima, Perú
| | - J Gonzales
- Instituto Nacional de Salud del Niño, Lima, Perú; Clínica Ricardo Palma, Lima, Perú
| | - D Angulo
- Hospital Nacional Docente Madre Niño San Bartolomé, Lima, Perú
| | - M D Cetraro
- Hospital Nacional Docente Madre Niño San Bartolomé, Lima, Perú
| | | | - K López
- Hospital Dr. Miguel Pérez Carreño, Caracas, Venezuela
| | - D Navarro
- Hospital Dr. Miguel Pérez Carreño, Caracas, Venezuela
| | - R Calva
- Facultad de Medicina BUAP, Puebla, México
| | - M Wagener
- Hospital de Niños Dr. O. Alassia, Santa Fe, Argentina
| | - R Zablah
- Clínica de Gastroenterología, Endoscopia y Nutrición Pediátrica Multipediátrica, San Salvador, El Salvador
| | - A Carias
- Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - O Calderón
- Clínica Farallones-Gastroped, Cali, Colombia
| | | | - M C Toca
- Hospital Nacional Alejandro Posadas, Buenos Aires, Argentina
| | - M R Dewaele
- Hospital Pereira Rossel, Montevideo, Uruguay
| | - C Iglesias
- Hospital Pereira Rossel, Montevideo, Uruguay
| | - L Delgado
- Hospital Pereira Rossel, Montevideo, Uruguay
| | - K León
- Policlínica Metropolitana, Caracas, Venezuela
| | - I Hassan
- Policlínica Metropolitana, Caracas, Venezuela
| | - F Ussher
- Hospital Universitario Austral, Buenos Aires, Argentina
| | - F Follett
- Hospital Universitario Austral, Buenos Aires, Argentina
| | - V Bernedo
- Hospital de Niños Sor María Ludovica, La Plata, Argentina
| | - V Grinblat
- Clínica Universitaria Reina Fabiola, Córdoba, Argentina
| | - N Agüero
- Clínica Universitaria Reina Fabiola, Córdoba, Argentina
| | - C Oviedo
- Hospital Vozandes, Quito, Ecuador
| | - A G García
- Gastroclínica, San Salvador, El Salvador
| | - A Salazar
- Hospital Central Ignacio Morones Prieto, San Luis Potosí, México
| | - P Coello
- Hospital Civil Juan I. Menchaca, Guadalajara, México
| | - R Furnes
- Hospital Privado Universitario de Córdoba, Córdoba, Argentina
| | - M Menchaca
- Hospital Universitario UANL, Monterrey, México
| | - M Fernández
- Hospital Dr. Manuel Antonio Narváez, Porlamar, Venezuela
| | - A Khoury
- Centro Policlínico Valencia, Valencia, Venezuela
| | - C Rojo
- Hospital Regional Leonardo Guzmán, Antofagasta, Chile
| | | | - C Morao
- Hospital de Niños Dr. J.M. de Los Ríos, Caracas, Venezuela
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Abstract
This paper describes studies on the processivity of an [alpha]-type DNA polymerase from maize (Zea mays L.) embryonic axes, designated as DNA polymerase 2. Using poly(dA)/oligo(dT) as template, DNA polymerase 2 has a processivity of 18 ([plus or minus]5) nucleotides incorporated, a value much lower than that found for wheat [alpha]-type DNA polymerase (P. Laquel, S. Litvak, M. Castroviejo [1993] Plant Physiol 102: 107-114). Conditions that maximally stimulate enzyme activity, such as 100 mM KCl and 12 mM Mg2+, are strongly inhibitory of processivity and cause the enzyme to become distributive under these conditions. Optimal concentrations for processivity are 10 mM KCl and 1 to 2 mM Mg2+. Both enzyme activity and processivity were found to be similar at different Mn2+ concentrations. Both DNA polymerase 2 activity and processivity are greatly reduced by spermine and N-ethylmaleimide. A distinguishing feature of processivity in DNA polymerase 2 was the response to ATP, which not only stimulated processivity by more than 2-fold, but also produced a distinctive pattern in which the enzyme seemed to pause every 10 nucleotides, reaching a value of 40 to 50 nucleotides incorporated. This pattern was observed in some, but not all, heparin-Sepharose fractions with enzyme activity, suggesting the possibility of different DNA polymerase 2 complexes.
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Affiliation(s)
- P. Coello
- Departamento de Bioquimica, Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Avenida Universidad y Copilco, Mexico 04510, D.F., Mexico
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Coello P, Vázquez-Ramos JM. Maize DNA polymerase 2 is a phosphoprotein with increasing activity during germination. Eur J Biochem 1995; 231:99-103. [PMID: 7628489] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
DNA replication is a late event during maize germination and DNA polymerase activity increases as germination proceeds. A replicative alpha-type DNA polymerase has been purified from maize seeds (DNA polymerase 2) and has been shown to be a multisubunit complex [Coello, P., Rodríguez, R., García, E. & Vázquez-Ramos, J. M. (1992) Plant Mol. Biol. 20, 1159-1168; Coello, P., García, E. & Vázquez-Ramos, J. M. (1994) Can. J. Botany 72, 818-822]. DNA polymerase 2 activity increased several fold during maize germination, with no apparent change in either the amount of holoenzyme or in any of the individual subunits. However, the level of phosphorylation of the 90-, 70-, 55- and 45-kDa polypeptides changed in a cyclic fashion with their highest levels occurring at 11-14 h and 45-48 h of germination. Phosphate incorporated into the different polypeptides in the 11-14-h period remained stable for at least the next 10 h (to 24 h of germination), the period of maximal enzyme activity. However, DNA polymerase 2 processivity was very similar in freshly prepared 3-h and 24-h enzymes, and no evidence was found that polymerase activity was modified by in vitro phosphorylation. The significance of these results is discussed.
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Affiliation(s)
- P Coello
- Departamento de Bioquímica, Facultad de Química, UNAM, México
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