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Cabal VN, Menendez M, Vivanco B, Potes-Ares S, Riobello C, Suarez-Fernandez L, Garcia-Marin R, Blanco-Lorenzo V, Lopez F, Alvarez-Marcos C, Llorente JL, Hermsen MA. EGFR mutation and HPV infection in sinonasal inverted papilloma and squamous cell carcinoma. Rhinology 2020; 58:368-376. [PMID: 32199023 DOI: 10.4193/rhin19.371] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND To evaluate the involvement of EGFR signalling and HPV infection in a cohort of inverted sinonasal papilloma (ISP) and sinonasal squamous cell carcinoma (SNSCC) and their value for prognosis and clinical treatment. METHODS We analysed 55 ISP, 14 SNSCC associated with ISP (SNSCC-isp) and and 60 SNSCC not associated with ISP (SNSCC-novo) for EGFR gene mutation and copy number gain, protein expression of EGFR and phosporylated EGFR (pEGFR), and HPV-infection and KRAS mutation. Findings were correlated to clinico-pathological and follow-up data. RESULTS We found EGFR exon 20 mutations in 38% (7/18) ISP, in 50% (6/12) SNSCC-isp and in 5% (1/19) SNSCC-novo. EGFR was expressed in 92% of ISP, while pEGFR was observed in 54% (21/39). SNSCC-isp and SNSCC-novo demonstrated comparable expression of EGFR (57% and 33%) and of pEGFR (44% and 38%). We observed an inverse relation between EGFR exon 20 mutation and pEGFR expression. Four of 39 (10%) ISP carried HPV-16. Oncogenic HPV was detected in 3/12 (25%) SNSSC-isp and in 1/8 (13%) SNSCC-novo. KRAS mutations were not detected in any of the samples. HPV infection was inversely correlated with pEGFR expression but not with EGFR mutation. ISP with EGFR activation by mutation or by phosphorylation had longer ISP-free survival, however, neither EGFR exon 20 mutation, pEGFR expression nor HPV infection demonstrated prognostic value in SNSCC. CONCLUSIONS EGFR exon 20 mutation is frequent in ISP and SNSCC-isp, while activation of EGFR through phosphorylation also plays an important role. Our data indicate that a large proportion of SNSCC patients could benefit from therapy with modern EGFR inhibitors.
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Affiliation(s)
- V N Cabal
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
| | - M Menendez
- Dept Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - B Vivanco
- Dept Pathology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - S Potes-Ares
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
| | - C Riobello
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
| | - L Suarez-Fernandez
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
| | - R Garcia-Marin
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
| | - V Blanco-Lorenzo
- Dept Pathology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - F Lopez
- Dept Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - C Alvarez-Marcos
- Dept Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - J L Llorente
- Dept Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - M A Hermsen
- Dept Head and Neck Oncology, Instituto de Investigacion Sanitaria del Principado de Asturias, Oviedo, Spain
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Jove M, Moran T, Teule A, Menendez M, Gausachs M, Vilariño N, Sánchez RP, Cirauqui B, Estival A, Carcereny E, Domenech M, Navarro M, Bosch-Barrera J, Fina C, Izquierdo A, Ruffinelli J, Varela M, Mesia C, Hernandez A, Gonzalez S, Lazaro C, Brunet J, Nadal E. P1.01-54 Somatic Genome Alterations in Lung Cancer Patients Diagnosed with Li Fraumeni Syndrome. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.769] [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: 10/25/2022]
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Zafonte SJ, Rafkin L, Sosenko JM, Kenyon NS, Santiago I, Krischer JP, Bundy B, Abbondondolo M, Dixit S, Pasha M, King K, Adcock H, Atterberry L, Fox K, Englert N, Mauras J, Permuy K, Sikes T, Adams T, Berhe B, Guendling L, McLennan L, Paganessi C, Murphy M, Draznin M, Kamboj S, Sheppard V, Lewis L, Coates W, Amado D, Moore G, Babar J, Bedard D, Brenson-Hughes J, Cernich M, Clements R, Duprau S, Goodman L, Hester L, Huerta-Saenz A, Asif I, Karmazin T, Letjen S, Raman D, Morin W, Bestermann E, Morawski J, White A, Brockmyer R, Bays S, Campbell A, Boonstra M, Stapleton N, Stone A, Donoho H, Everett H, Hensley M, Johnson C, Marshall N, Skirvin P, Taylor R, Williams L, Burroughs C, Ray C, Wolverton D, Nickels C, Dothard P, Speiser M, Pellizzari L, Bokor K, Izuora S, Abdelnour P, Cummings S, Cuthbertson D, Paynor M, Leahy M, Riedl S, Shockley R, Saad T, Briones S, Casella C, Herz K, Walsh J, Greening F, Deemer M, Hay S, Hunt N, Sikotra L, Simons D, Karounos R, Oremus L, Dye L, Myers D, 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Manning G, Hendry B, Taylor S, Jones W, Strader M, Bencomo T, Bailey L, Bedolla C, Roldan C, Moudiotis B, Vaidya C, Anning S, Bunce S, Estcourt E, Folland E, Gordon C, Harrill J, Ireland J, Piper L, Scaife K, Sutton S, Wilkins M, Costelloe J, Palmer L, Casas C, Miller M, Burgard C, Erickson J, Hallanger-Johnson P, Clark W, Taylor A, Lafferty S, Gillett C, Nolan M, Pathak L, Sondrol T, Hjelle S, Hafner J, Kotrba R, Hendrickson A, Cemeroglu T, Symington M, Daniel Y, Appiagyei-Dankah D, Postellon M, Racine L, Kleis K, Barnes S, Godwin H, McCullough K, Shaheen G, Buck L, Noel M, Warren S, Weber S, Parker I, Gillespie B, Nelson C, Frost J, Amrhein E, Moreland A, Hayes J, Peggram J, Aisenberg M, Riordan J, Zasa E, Cummings K, Scott T, Pinto A, Mokashi K, McAssey E, Helden P, Hammond L, Dinning S, Rahman S, Ray C, Dimicri S, Guppy H, Nielsen C, Vogel C, Ariza L, Morales Y, Chang R, Gabbay L, Ambrocio L, Manley R, Nemery W, Charlton P, Smith L, Kerr B, Steindel-Kopp M, Alamaguer D, Liljenquist G, Browning T, Coughenour M, Sulk E, Tsalikan M, Tansey J, Cabbage N. Identical and Nonidentical Twins: Risk and Factors Involved in Development of Islet Autoimmunity and Type 1 Diabetes. Diabetes Care 2019; 42:192-199. [PMID: 30061316 PMCID: PMC6341285 DOI: 10.2337/dc18-0288] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/28/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE There are variable reports of risk of concordance for progression to islet autoantibodies and type 1 diabetes in identical twins after one twin is diagnosed. We examined development of positive autoantibodies and type 1 diabetes and the effects of genetic factors and common environment on autoantibody positivity in identical twins, nonidentical twins, and full siblings. RESEARCH DESIGN AND METHODS Subjects from the TrialNet Pathway to Prevention Study (N = 48,026) were screened from 2004 to 2015 for islet autoantibodies (GAD antibody [GADA], insulinoma-associated antigen 2 [IA-2A], and autoantibodies against insulin [IAA]). Of these subjects, 17,226 (157 identical twins, 283 nonidentical twins, and 16,786 full siblings) were followed for autoantibody positivity or type 1 diabetes for a median of 2.1 years. RESULTS At screening, identical twins were more likely to have positive GADA, IA-2A, and IAA than nonidentical twins or full siblings (all P < 0.0001). Younger age, male sex, and genetic factors were significant factors for expression of IA-2A, IAA, one or more positive autoantibodies, and two or more positive autoantibodies (all P ≤ 0.03). Initially autoantibody-positive identical twins had a 69% risk of diabetes by 3 years compared with 1.5% for initially autoantibody-negative identical twins. In nonidentical twins, type 1 diabetes risk by 3 years was 72% for initially multiple autoantibody-positive, 13% for single autoantibody-positive, and 0% for initially autoantibody-negative nonidentical twins. Full siblings had a 3-year type 1 diabetes risk of 47% for multiple autoantibody-positive, 12% for single autoantibody-positive, and 0.5% for initially autoantibody-negative subjects. CONCLUSIONS Risk of type 1 diabetes at 3 years is high for initially multiple and single autoantibody-positive identical twins and multiple autoantibody-positive nonidentical twins. Genetic predisposition, age, and male sex are significant risk factors for development of positive autoantibodies in twins.
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Affiliation(s)
- Taylor M. Triolo
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Alexandra Fouts
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Laura Pyle
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Liping Yu
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Peter A. Gottlieb
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Andrea K. Steck
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
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Espinoza O, Frank E, Liu J, Perry J, Pyle R, Rigby A, Riley K, Soto A, Gitelman S, Adi S, Anderson M, Berhel A, Breen K, Fraser K, Gerard-Gonzalez A, Jossan P, Lustig R, Moassesfar S, Mugg A, Ng D, Prahalod P, Rangel-Lugo M, Sanda S, Tarkoff J, Torok C, Wesch R, Aslan I, Buchanan J, Cordier J, Hamilton C, Hawkins L, Ho T, Jain A, Ko K, Lee T, Phelps S, Rosenthal S, Sahakitrungruang T, Stehl L, Taylor L, Wertz M, Wong J, Philipson L, Briars R, Devine N, Littlejohn E, Grant T, Gottlieb P, Klingensmith G, Steck A, Alkanani A, Bautista K, Bedoy R, Blau A, Burke B, Cory L, Dang M, Fitzgerald-Miller L, Fouts A, Gage V, Garg S, Gesauldo P, Gutin R, Hayes C, Hoffman M, Ketchum K, Logsden-Sackett N, Maahs D, Messer L, Meyers L, Michels A, Peacock S, Rewers M, Rodriguez P, Sepulbeda F, Sippl R, Steck A, Taki I, Tran BK, Tran T, Wadwa RP, Zeitler P, Barker J, Barry S, Birks L, Bomsburger L, Bookert T, Briggs L, Burdick P, Cabrera R, Chase P, Cobry E, Conley A, Cook G, Daniels J, DiDomenico D, 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Castleden H, Farthing N, Loud S, Matthews C, McGhee J, Morgan A, Pollitt J, Elliot-Jones R, Wheaton C, Knip M, Siljander H, Suomalainen H, Colman P, Healy F, Mesfin S, Redl L, Wentworth J, Willis J, Farley M, Harrison L, Perry C, Williams F, Mayo A, Paxton J, Thompson V, Volin L, Fenton C, Carr L, Lemon E, Swank M, Luidens M, Salgam M, Sharma V, Schade D, King C, Carano R, Heiden J, Means N, Holman L, Thomas I, Madrigal D, Muth T, Martin C, Plunkett C, Ramm C, Auchus R, Lane W, Avots E, Buford M, Hale C, Hoyle J, Lane B, Muir A, Shuler S, Raviele N, Ivie E, Jenkins M, Lindsley K, Hansen I, Fadoju D, Felner E, Bode B, Hosey R, Sax J, Jefferies C, Mannering S, Prentis R, She J, Stachura M, Hopkins D, Williams J, Steed L, Asatapova E, Nunez S, Knight S, Dixon P, Ching J, Donner T, Longnecker S, Abel K, Arcara K, Blackman S, Clark L, Cooke D, Plotnick L, Levin P, Bromberger L, Klein K, Sadurska K, Allen C, Michaud D, Snodgrass H, Burghen G, Chatha S, Clark C, Silverberg J, Wittmer C, Gardner J, LeBoeuf C, Bell P, McGlore O, Tennet H, Alba N, Carroll M, Baert L, Beaton H, Cordell E, Haynes A, Reed C, Lichter K, McCarthy P, McCarthy S, Monchamp T, Roach J, Manies S, Gunville F, Marosok L, Nelson T, Ackerman K, Rudolph J, Stewart M, McCormick K, May S, Falls T, Barrett T, Dale K, Makusha L, McTernana C, Penny-Thomas K, Sullivan K, Narendran P, Robbie J, Smith D, Christensen R, Koehler B, Royal C, Arthur T, Houser H, Renaldi J, Watsen S, Wu P, Lyons L, House B, Yu J, Holt H, Nation M, Vickers C, Watling R, Heptulla R, Trast J, Agarwal C, Newell D, Katikaneni R, Gardner C, Del Rio A, Logan A, Collier H, Rishton C, Whalley G, Ali A, Ramtoola S, Quattrin T, Mastrandea L, House A, Ecker M, Huang C, Gougeon C, Ho J, Pacuad D, Dunger D, May J, O’Brien C, Acerini C, Salgin B, Thankamony A, Williams R, Buse J, Fuller G, Duclos M, Tricome J, Brown H, Pittard D, Bowlby D, Blue A, Headley T, Bendre S, Lewis K, Sutphin K, Soloranzo C, Puskaric J, Madison H, Rincon M, Carlucci M, 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Trunnel S, Transue D, Surhigh J, Bezzaire D, Moltz K, Zacharski E, Henske J, Desai S, Frizelis K, Khan F, Sjoberg R, Allen K, Manning P, Hendry G, Taylor B, Jones S, Couch R, Danchak R, Lieberman D, Strader W, Bencomo M, Bailey T, Bedolla L, Roldan C, Moudiotis C, Vaidya B, Anning C, Bunce S, Estcourt S, Folland E, Gordon E, Harrill C, Ireland J, Piper J, Scaife L, Sutton K, Wilkins S, Costelloe M, Palmer J, Casas L, Miller C, Burgard M, Erickson C, Hallanger-Johnson J, Clark P, Taylor W, Galgani J, Banerjee S, Banda C, McEowen D, Kinman R, Lafferty A, Gillett S, Nolan C, Pathak M, Sondrol L, Hjelle T, Hafner S, Kotrba J, Hendrickson R, Cemeroglu A, Symington T, Daniel M, Appiagyei-Dankah Y, Postellon D, Racine M, Kleis L, Barnes K, Godwin S, McCullough H, Shaheen K, Buck G, Noel L, Warren M, Weber S, Parker S, Gillespie I, Nelson B, Frost C, Amrhein J, Moreland E, Hayes A, Peggram J, Aisenberg J, Riordan M, Zasa J, Cummings E, Scott K, Pinto T, Mokashi A, McAssey K, Helden E, Hammond P, Dinning L, Rahman S, Ray S, Dimicri C, Guppy S, Nielsen H, Vogel C, Ariza C, Morales L, Chang Y, Gabbay R, Ambrocio L, Manley L, Nemery R, Charlton W, Smith P, Kerr L, Steindel-Kopp B, Alamaguer M, Tabisola-Nuesca E, Pendersen A, Larson N, Cooper-Olviver H, Chan D, Fitz-Patrick D, Carreira T, Park Y, Ruhaak R, Liljenquist D. A Type 1 Diabetes Genetic Risk Score Predicts Progression of Islet Autoimmunity and Development of Type 1 Diabetes in Individuals at Risk. Diabetes Care 2018; 41:1887-1894. [PMID: 30002199 PMCID: PMC6105323 DOI: 10.2337/dc18-0087] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We tested the ability of a type 1 diabetes (T1D) genetic risk score (GRS) to predict progression of islet autoimmunity and T1D in at-risk individuals. RESEARCH DESIGN AND METHODS We studied the 1,244 TrialNet Pathway to Prevention study participants (T1D patients' relatives without diabetes and with one or more positive autoantibodies) who were genotyped with Illumina ImmunoChip (median [range] age at initial autoantibody determination 11.1 years [1.2-51.8], 48% male, 80.5% non-Hispanic white, median follow-up 5.4 years). Of 291 participants with a single positive autoantibody at screening, 157 converted to multiple autoantibody positivity and 55 developed diabetes. Of 953 participants with multiple positive autoantibodies at screening, 419 developed diabetes. We calculated the T1D GRS from 30 T1D-associated single nucleotide polymorphisms. We used multivariable Cox regression models, time-dependent receiver operating characteristic curves, and area under the curve (AUC) measures to evaluate prognostic utility of T1D GRS, age, sex, Diabetes Prevention Trial-Type 1 (DPT-1) Risk Score, positive autoantibody number or type, HLA DR3/DR4-DQ8 status, and race/ethnicity. We used recursive partitioning analyses to identify cut points in continuous variables. RESULTS Higher T1D GRS significantly increased the rate of progression to T1D adjusting for DPT-1 Risk Score, age, number of positive autoantibodies, sex, and ethnicity (hazard ratio [HR] 1.29 for a 0.05 increase, 95% CI 1.06-1.6; P = 0.011). Progression to T1D was best predicted by a combined model with GRS, number of positive autoantibodies, DPT-1 Risk Score, and age (7-year time-integrated AUC = 0.79, 5-year AUC = 0.73). Higher GRS was significantly associated with increased progression rate from single to multiple positive autoantibodies after adjusting for age, autoantibody type, ethnicity, and sex (HR 2.27 for GRS >0.295, 95% CI 1.47-3.51; P = 0.0002). CONCLUSIONS The T1D GRS independently predicts progression to T1D and improves prediction along T1D stages in autoantibody-positive relatives.
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Affiliation(s)
- Maria J. Redondo
- Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | | | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Seth Sharp
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | - John M. Wentworth
- Walter and Eliza Hall Institute of Medical Research and Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michael N. Weedon
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | | | | | | | | | - Richard A. Oram
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
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Lu N, Rai S, Terkeltaub R, Kim S, Menendez M, Choi H. THU0493 Racial Disparities in The Risk of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis as Urate-Lowering Drug Adverse Events in The Us. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2743] [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: 11/04/2022]
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6
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Menendez M, Brogan Hartlieb K, Jacques-Tiura A, Naar-King S. Investigating the Relationship between Subjective and Objective Exertion during a Cardiovascular Fitness Test in Minority Youth with Obesity. J Acad Nutr Diet 2015. [DOI: 10.1016/j.jand.2015.06.313] [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: 11/29/2022]
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7
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Hussein H, Ishihara A, Menendez M, Bertone A. Pharmacokinetics and bone resorption evaluation of a novel Cathepsin K inhibitor (VEL-0230) in healthy adult horses. J Vet Pharmacol Ther 2014; 37:556-64. [DOI: 10.1111/jvp.12131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 03/17/2014] [Indexed: 11/30/2022]
Affiliation(s)
- H. Hussein
- Department of Veterinary Clinical Sciences; College of Veterinary Medicine; The Ohio State University; Columbus OH USA
| | - A. Ishihara
- School of Veterinary Medicine; Azabu University; Kanagawa Japan
| | - M. Menendez
- Department of Veterinary Clinical Sciences; College of Veterinary Medicine; The Ohio State University; Columbus OH USA
| | - A. Bertone
- Department of Veterinary Clinical Sciences; College of Veterinary Medicine; The Ohio State University; Columbus OH USA
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8
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Diaz M, Menendez M, Rodriguez PL, Albert A. The crystal structure of an Arabidopsis thalianaC2 domain. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311091410] [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: 11/10/2022] Open
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9
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10
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11
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Lopez R, Menendez M, Diaz N, Suarez D, Campomanes P, Ardura D, Sordo T. Theoretical Studies on the Ring Opening of β-lactams: Processes in Solution and in Enzymatic Media. CURR ORG CHEM 2006. [DOI: 10.2174/138527206776818883] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Lutzky J, Weber R, Nunez Y, Menendez M, Rose M, Trautvetter S, Timmerman M, Spitler LE. A phase I study of granulocyte macrophage colony-stimulating factor (GM-CSF) and escalating doses of thalidomide in patients with high-risk malignant melanoma. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- J. Lutzky
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - R. Weber
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - Y. Nunez
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - M. Menendez
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - M. Rose
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - S. Trautvetter
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - M. Timmerman
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
| | - L. E. Spitler
- Mt Sinai Comp Cancer Ctr, Miami Beach, FL; Northern CA Melanoma Ctr, San Francisco, CA
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13
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Comin FA, Menendez M, Pedrocchi C, Moreno S, Sorando R, Cabezas A, Garcia M, Rosas V, Moreno D, Gonzalez E, Gallardo B, Herrera JA, Ciancarelli C. Wetland Restoration: Integrating Scientific-Technical, Economic, and Social Perspectives. ECOL RESTOR 2005. [DOI: 10.3368/er.23.3.182] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Borio DO, Menendez M, Santamaria J. Simulation and optimization of a fixed bed reactor operating in coking-regeneration cycles. Ind Eng Chem Res 2002. [DOI: 10.1021/ie00012a011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Espinoza R, du Toit E, Santamaria J, Menendez M, Coronas J, Irusta S. Use of membranes in fischer-tropsch reactors. Studies in Surface Science and Catalysis 2000. [DOI: 10.1016/s0167-2991(00)80988-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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Gil-Serrano AM, Rodríguez-Carvajal MA, Tejero-Mateo P, Espartero JL, Menendez M, Corzo J, Ruiz-Sainz JE, BuendíA-Clavería AM. Structural determination of a 5-acetamido-3,5,7, 9-tetradeoxy-7-(3-hydroxybutyramido)-L-glycero-L-manno-nonulos onic acid-containing homopolysaccharide isolated from Sinorhizobium fredii HH103. Biochem J 1999; 342 Pt 3:527-35. [PMID: 10477263 PMCID: PMC1220493] [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: 02/13/2023]
Abstract
The structure of a polysaccharide from Sinorhizobium fredii HH103 has been determined. This polysaccharide was isolated by following the protocol for lipopolysaccharide extraction. On the basis of monosaccharide analysis, methylation analysis, fast atom bombardment MS, matrix-assisted laser desorption ionization MS, electron-impact high-resolution MS, one-dimensional (1)H-NMR and (13)C-NMR and two-dimensional NMR experiments, the structure was shown to consist of a homopolymer of a 3:1 mixture of 5-acetamido-3,5,7, 9-tetradeoxy-7-[(R)- and (S)-3-hydroxybutyramido]-l-glycero-l-manno-nonulosonic acid. The sugar residues are attached via a glycosidic linkage to the OH group of the 3-hydroxybutyramido substituent and thus the monomers are linked via both glycosidic and amidic linkages. In contrast with the Sinorhizobium K-antigens previously reported, which are composed of a disaccharide repeating unit, the K-antigen polysacharide of S. fredii HH103 is a homopolysaccharide.
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Affiliation(s)
- A M Gil-Serrano
- Departamento de Qu approximately ímica Orgánica, Facultad de Qu approximately ímica, Universidad de Sevilla, 41071 Sevilla, Spain.
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17
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Garcia-Repetto R, Soria ML, Gimenez MP, Menendez M, Repetto M. Deaths from pesticide poisoning in Spain from 1991 to 1996. Vet Hum Toxicol 1998; 40:166-8. [PMID: 9610498] [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: 02/07/2023]
Abstract
Data on 184 deaths from pesticide poisonings that occurred in Spain from 1991 to 1996 have been collated via a survey from the National Institute of Toxicology, Sevilla. Organophosphates and carbamates accounted for the majority of the cases. Other substances involved were organochlorines such as endosulfan and the herbicide paraquat.
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19
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Abstract
Hypoxanthine-guanine phosphoribosyltransferase (HGPRT, E.C.2.4.2.8) from Artemia cysts exhibits maximum activity at 70 degrees C. Its thermal stability has been examined following enzymatic activity as a function of temperature. Cold-induced renaturation experiments of samples heated at increasing temperatures showed that reversibility of thermal inactivation depends on the incubation time and final temperature. Prolonged incubation of the thermoinactivated enzyme at 0 degree C did not afford any further increase of the catalytic activity at 37 degrees C. The complex substrate PRPP:Mg protects HGPRT from thermal inactivation. However, incubations with hypoxanthine rendered a less thermostable enzyme at any temperature tested. The irreversible inactivation of HGPRT proceeds in two exponential steps. The analysis of the apparent rate constants for the fast and the slow phases, lambda 1 and lambda 2 as per the Lumry and Eyring model suggests the existence of more than three states in the thermal denaturation pathway of the free enzyme. In the presence of PRPP:Mg the irreversible process follows a single exponential and proceeds very slowly below 70 degrees C. PRPP:Mg also protects the enzyme from inactivation by NEM and pCMB, suggesting that -SH groups may be in the vicinity of the active site.
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Affiliation(s)
- C Montero
- Instituto de Investigaciones Biomedicas del Consejo Superior de Investigaciones Cientificas, (C.S.I.C), Madrid, Spain
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20
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Coronas J, Menendez M, Santamaria J. Development of ceramic membrane reactors with a non-uniform permeation pattern. Application to methane oxidative coupling. Chem Eng Sci 1994. [DOI: 10.1016/s0009-2509(05)80056-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Peyrot V, Leynadier D, Sarrazin M, Briand C, Menendez M, Laynez J, Andreu JM. Mechanism of binding of the new antimitotic drug MDL 27048 to the colchicine site of tubulin: equilibrium studies. Biochemistry 1992; 31:11125-32. [PMID: 1445852 DOI: 10.1021/bi00160a024] [Citation(s) in RCA: 45] [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: 12/27/2022]
Abstract
MDL 27048 [trans-1-(2,5-dimethoxyphenyl)-3-[4-(dimethylamino)phenyl]-2- methyl-2-propen-1-one] fluoresces when bound to tubulin but not in solution. This effect has been investigated and found to be mimicked by viscous solvents. Therefore, MDL 27048 appears to be a fluorescent compound whose intramolecular rotational relaxation varies as a function of microenvironment viscosity. The binding parameters of MDL 27048 to tubulin have been firmly established by fluorescence of the ligand, quenching of the protein fluorescence, and gel equilibrium chromatography. The apparent binding equilibrium constant was (2.75 +/- 0.45) x 10(6)M-1, and the binding site number was 0.81 +/- 0.12 (10 mM sodium phosphate-0.1 mM GTP, pH 7.0, at 25 degrees C). The binding is exothermic. The binding of MDL 27048 overlaps the colchicine and podophyllotoxin binding sites. Binding of MDL 27048 to the colchicine site was also measured by competition with MTC [2-methoxy-5-(2,3,4-trimethoxyphenyl)-2,4,6-cycloheptatrien-1-one] , a well-characterized reversibly binding probe of the colchicine site [Andreu et al. (1984) Biochemistry 23, 1742-1752; Bane et al., (1984) J. Biol. Chem. 259, 7391-7398]. In contrast with close analogues of colchicine, MDL 27048 and podophyllotoxin neither affected the far-ultraviolet circular dichroism spectrum of tubulin, within experimental error, nor induced tubulin GTPase activity. Like podophyllotoxin, an excess of MDL 27048 over tubulin induced no abnormal cooperative polymerization of tubulin, which is characteristic of colchicine binding.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- V Peyrot
- Groupe de Recherche sur les Interactions des Protéines en Pharmacologie (GRIPP), Faculté de Pharmacie, Marseille, France
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22
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Abstract
OBJECTIVE To evaluate the usefulness of extracorporeal clearance techniques in the treatment of organophosphate poisoning, particularly hemoperfusion. DESIGN Retrospective study. SETTING An ICU of a general hospital. PATIENTS Ten patients with organophosphate poisoning initially received classic treatment with gastric lavage and washing of the whole skin surface, as well as the administration of cathartics, activated charcoal, atropine, and obidoxime or pralidoxime. All patients underwent one to three hemoperfusions. MEASUREMENTS AND MAIN RESULTS Plasma insecticide concentrations and cholinesterase activity were determined daily. Two to three biopsies of fat tissue were carried out at 1- to 2-wk intervals. The amount of the insecticide removed during hemoperfusions was also determined. Five patients presented with a prolonged nicotinic syndrome. Two of these patients showed sequelae of delayed neurotoxicity. Another two of the five patients died and the remaining patient recovered without sequelae. In none of the patients could > 0.1% of the total absorbed poison be removed by hemoperfusion. No changes in symptoms were observed after these procedures. Fat tissue concentrations of the insecticide were 20 to 50 times higher than the concentrations in plasma. Atropine decreased the intestinal transit time, and 10 days after poisoning, a powerful cathartic treatment indicated the persistence of gut content, which probably caused prolonged absorption of the toxin. CONCLUSIONS Extracorporeal cleansing mechanisms did not remove any clinically important amount of insecticide from our patients due to the high lipid solubility of these agents and no changes in symptoms were observed after these methods. The use of atropine decreases bowel peristalsis. Early use of powerful cathartics could avoid protracted absorption of the poison stored in the gut, although the potential benefits of this therapy require confirmation by the performance of prospective, controlled investigations.
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Affiliation(s)
- J Martinez-Chuecos
- Intensive Care Unit, Hospital Nuestra Señora de Candelaria, Tenerife, Spain
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23
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Martin Villacorta J, Arriaga P, Laynez J, Menendez M. Interaction of beta-lactamases I and II from Bacillus cereus with semisynthetic cephamycins. Kinetic studies. Biochem J 1991; 279 ( Pt 1):111-4. [PMID: 1930129 PMCID: PMC1151553] [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: 12/29/2022]
Abstract
The influence of C-6 alpha- or C-7 alpha-methoxylation of the beta-lactam ring in the catalytic action of class A and B beta-lactamases has been investigated. For this purpose the kinetic behaviour of beta-lactamases I (class A) and II (class B) from Bacillus cereus was analysed by using several cephamycins, moxalactam, temocillin and related antibiotics. These compounds behaved as poor substrates for beta-lactamase II, with high Km values and very low catalytic efficiencies. In the case of beta-lactamase I, the substitution of a methoxy group for a H atom at C-7 alpha or C-6 alpha decreased the affinity of the substrates for the enzyme. Furthermore, the acylation of cephamycins was completely blocked, whereas that of penicillins was slowed down by a factor of 10(4)-10(5), acylation being the rate-determining step of the process.
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Affiliation(s)
- J Martin Villacorta
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Universidad de León, Spain
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Acharya DR, Crowley TL, Hughes R, Koon CL, Menendez M, Rieutord F. Characterization of a chromia–alumina catalyst using small-angle neutron scattering. J Appl Crystallogr 1990. [DOI: 10.1107/s0021889890006483] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Neutron scattering has been employed to study the pore structure of a chromia–alumina catalyst. The results indicated the existence of three distinct scattering regimes with distinct slopes corresponding to the values of the wavevector, Q. The analysis of the scattering in these regions suggested that the large-Q region corresponds to Porod's law scattering and provides information on the specific surface area. The intermediate Q region arises from scattering from hollow capillaries and provides information on the dimension of the capillaries. The small-Q behaviour arises from the relative spatial arrangement of capillaries, which appear to form a `fractal' network.
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25
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Arriaga P, Laynez J, Menendez M, Cañada J, Garcia-Blanco F. Thermodynamic analysis of the interaction of the antibiotic teicoplanin and its aglycone with cell-wall peptides. Biochem J 1990; 265:69-77. [PMID: 2137332 PMCID: PMC1136615 DOI: 10.1042/bj2650069] [Citation(s) in RCA: 10] [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: 12/30/2022]
Abstract
The thermodynamics of the interaction of the glycopeptidic antibiotic teicoplanin and its peptidic moiety with analogues of bacterial cell-wall peptides were studied by means of calorimetric and spectrophotometric techniques. The analysis of the thermodynamic data has allowed us to evaluate the contributions of the different peptide groups to the binding process. The nature of the primary binding forces is also discussed for each interacting group, on the basis of their enthalpic and entropic contribution and in connection with the detailed structural information available for these antibiotics from n.m.r. data. Similar analyses for the case of vancomycin and ristocetin are also reported.
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Affiliation(s)
- P Arriaga
- Instituto de Quimica-Fisica 'Rocasolano', Serrano, Madrid, Spain
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26
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Abstract
In Escherichia coli, the transcription of the malT gene is activated by the complex formed between cAMP and its receptor protein, CRP. Kinetics of formation of polyribonucleotide products from the corresponding promoter were studied in vitro by two sets of techniques, abortive initiation assays and run-off experiments. The first type of assay indicated that open complexes were formed at malT with an equivalent efficiency, and at comparable rates, whether CRP-cAMP was present or not. Secondary effects due to the activating complex were observed (increased stability of the open complex, elimination of a weaker binding site for the enzyme, improved Michaelis constants of RNA polymerase for the substrates of the assay, UTP in particular). But, primarily, CRP-cAMP did not exert a significant role in the rate of formation of the initiation complex. In contrast, run-off assays showed that the yield of the full-length transcripts was markedly enhanced by prior incubation of the DNA fragment with CRP-cAMP. Both in the presence and in the absence of activator, the rate-limiting step for this process was markedly slower than the formation of the initial open complex. Short oligonucleotides (n less than 9), probably arising from a recycling process, were found when the initiation complex was formed in the absence of CRP-cAMP. They were abolished by prior incubation with the activator. Unexpectedly, CRP-cAMP appears to favour the escape of RNA polymerase from the initiation complex at this promoter.
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Affiliation(s)
- M Menendez
- Institut Pasteur, Départment de Biologie Moléculaire, France
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27
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Pacey PD, Dunning TH, Smith IWM, Miller WH, Truhlar DG, Aquilanti V, Laganà A, Gervasi O, Garcia E, Kuntz PJ, Menendez M, Banares L, Alonso J, Urena AG, Garrett BC. General discussion. ACTA ACUST UNITED AC 1987. [DOI: 10.1039/dc9878400455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
The binding of AMP to activator site N and to inhibitor site I in glycogen phosphorylase b has been characterized by calorimetry, potentiometry and ultracentrifugation in the pH range 6.5-7.5 at 25 degrees C (mu = 0.1). Calorimetric titration data of phosphorylase b with adenosine 5'-phosphoramidate are also reported at pH 6.9 (T = 25 degrees C, mu = 0.1). Calorimetric curves have been analyzed on the basis of potentiometric and sedimentation velocity results to determine thermodynamic quantities for AMP binding to the enzyme. The comparison of calorimetric titration data of AMP and adenosine 5'-phosphoramidate at pH 6.9 supports the hypothesis previously suggested that the dianionic phosphate form of the nucleotide preferentially binds to the allosteric activator site. The thermodynamic parameters for AMP binding to site N are as follows: delta G0 = -22 kJ mol-1, delta H0 = -34 kJ mol-1 and delta S0 = -40 J mol-1 K-1. The binding of the nucleotide to site I was found to be strongly dependent on the pH. This behaviour may be explained in terms of coupled protonations of three groups having pKa values of 6.0, 6.0 and 6.1 in the unbound form and 7.0, 7.5 and 7.2 in the enzyme-nucleotide complex. The thermodynamic parameters for nucleotide binding to site I for the enzymatic form in which all the modified groups are completely deprotonated or protonated have been calculated to be: delta G0 = -7.7 kJ mol-1, delta H0 = -28 kJ mol-1 and delta S0 = -68 J mol-1 K-1 and delta G0 = -28 kJ mol-1, delta H0H = -10 kJ mol-1 and delta S0H = 61 J mol-1 K-1, respectively. These results suggest that attractive dispersion forces are of primary significance for AMP binding to activator site N, although electrostatic interactions act as a stabilizing factor in the nucleotide binding. The protonation states of those residues of which the pKa values are modified by AMP binding to site I highly influence the thermodynamic parameters for the nucleotide binding to this site.
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29
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Menendez M, Cintado C, Macias P. Chimioprophylaxie des affections méningococciques par la minocycline. Effets secondaires observés chez l'enfant. Med Mal Infect 1980. [DOI: 10.1016/s0399-077x(80)80071-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Abstract
The enthalpies of binding of AMP to phosphorylase b have been measured as a function of enzyme concentration in glycylglycine buffer, pH 6.9. The results show how a conformational transition, which takes place in the concentration range of 1.7 to 2.5 mg/ml of phosphorylase b, affects the enthalpies of the two binding sites per monomer for the allosteric activator AMP. The enthalpies of the AMP interaction with its higher and lower affinity binding sites are -220 and -640 kJ (mol monomer)-1 at an enzyme concentration of 1 mg/ml, and -120 and -360 kJ (mol monomer)-1 at 2.7 mg/ml. The conformational transition of phosphorylase b alters the reactivity of the slow -SH groups of the enzyme with 5,5'-dithiobis(2-nitrobenzoic acid), suggesting that the environment of these groups are affected by the process. On the other hand, kinetic data show that the saturation of both classes of AMP binding sites affects the catalytic behavior and that their specific effects on the catalytic process are altered by the enzymatic transition dependent on the enzyme concentration. Thus, a strong inhibition is associated with the saturation of the weaker affinity AMP binding sites at 3 mg/ml while the saturation of these weaker affinity binding sites at 1 mg/ml produces an important activation of the enzyme.
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Abstract
The effects of several chemical modifications in the AMP molecule on its interaction with phosphorylase b are examined by microcalorimetry, equilibrium dialysis, light scattering and ultracentrifuge experiments. In this work we report the results obtained for eight AMP analogues corresponding to different substituents in the puric base or in the ribose, or to different positions of the phosphate. The thermodynamic properties of the interaction between the phosphorylase b and the above mentioned nucleotides are also reported. The following conclusions were obtained: a) Except for IMP and 2'dIMP all the nucleotides studied clearly show two types of binding sites in the enzyme. b) The interaction of the nucleotide with its weaker affinity binding site is highly dependent upon chemical alterations in the puric base. c) Both the amino group in C(6) and the N(1) of the adenine in the AMP seem to play an important role in the conformational transitions induced by the nucleotide on the enzyme. d) The tetramerization of phosphorylase b in the presence of 10(-2) M AMP and in the conditions of the ultracentrifuge experiments is drastically affected by modifications in the ribose-phosphate part of the AMP molecule.
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Rosenberg JC, Azcarate J, Fleischmann LE, McDonald FD, Menendez M, Pierce JM, Whang CW. Indications for pretransplant nephrectomy. Arch Surg 1973; 107:233-41. [PMID: 4578272 DOI: 10.1001/archsurg.1973.01350200097022] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Repetto MJ, Menendez M. [Identification of cannabis from the plant, smoke and urine]. Eur J Toxicol 1970; 3:392-6. [PMID: 5520494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Bentivoglio LG, Geczy M, Menendez M, Schlesinger Z, Goldberg H. Cardiovascular dynamics in man during idioventricular rhythm and at various, electrically determined, ventricular rates in acquired complete heart block at rest. Cardiologia (Basel) 1969; 54:170-91. [PMID: 5372887 DOI: 10.1159/000166252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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