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Guimbellot J, Natt J, Ryan K, Dowell A, Odem-Davis K, Konstan M, Zemanick E, Mayer-Hamblett N, Acosta E. 261 Concentrations of elexacaftor/tezacaftor/ivacaftor in the cystic fibrosis population: Interim analysis of the CHEC-Pharmacokinetics study. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00951-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sanak D, Marticorena-Martinez R, Acosta E. A Rarity Among the Rare: Psychiatric Manifestations in a Young Woman With Stiff-Person Syndrome. Cureus 2022; 14:e26745. [PMID: 35967178 PMCID: PMC9365027 DOI: 10.7759/cureus.26745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2022] [Indexed: 11/11/2022] Open
Abstract
Stiff-person syndrome (SPS) is a rare progressive neurologic disease associated with autoantibodies against glutamic acid decarboxylase, an intracellular enzyme involved in the production of gamma-aminobutyric acid. We present a case involving a 35-year-old Haitian female who was placed under the Baker Act in the emergency department for suicidal behavior and acute psychosis. She has a history of SPS with a positive glutamic acid decarboxylase (GAD) antibody, a condition most commonly found in females between 20 and 50 years of age. The condition was managed by an outpatient neurologist using diazepam, baclofen, and monthly intravenous immunoglobulin treatments. She also has an extensive history of organic neurological conditions, including traumatic brain injury at 18 years old and COVID-19-related anoxic encephalitis that occurred in December 2020. Both psychiatric and neurological physical exams were completed. They revealed a cerebellar tremor, bilateral ptosis, poor eye contact, decreased concentration, poor insight, depressed mood, flat affect, poor judgement, delusional thoughts and a disorganized thought process with tangential speech. CT and MRI imaging of the brain showed no acute intracranial abnormalities. A quantitative titer of the GAD antibody was completed and shown to be elevated >250IU/mL. Depakote 500mg twice daily and risperidone 3mg twice daily were prescribed. The patient had progressive improvement of psychosis including delusional thoughts over the following five days and was able to be discharged with instructions to follow-up with outpatient neurology.
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Guimbellot J, Ryan K, Anderson J, Liu Z, Natt J, Kersh L, Acosta E. 175: Epithelial cell pharmacokinetics of ivacaftor. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01600-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Almagro P, Acosta E, Navarro A, Murillo M, Valdivielso S, de la Sierra A. Study of arterial stiffness in patients with an acute coronary event and chronic obstructive pulmonary disease confirmed by spirometry. Rev Clin Esp 2019. [DOI: 10.1016/j.rceng.2019.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Almagro P, Acosta E, Navarro A, Murillo MF, Valdivielso S, de la Sierra A. Study of arterial stiffness in patients with an acute coronary event and chronic obstructive pulmonary disease confirmed by spirometry. Rev Clin Esp 2019; 219:251-255. [PMID: 30660321 DOI: 10.1016/j.rce.2018.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 07/24/2018] [Accepted: 08/13/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Chronic obstructive pulmonary disease (COPD) worsens the prognosis for patients with an acute coronary event (ACE) treated with percutaneous coronary intervention. Objective To assess the effect of COPD on arterial stiffness in patients with an ACE. METHODS The study included patients with an ACE treated with percutaneous coronary intervention. At 1 month, postbronchodilation spirometry was performed, and arterial stiffness and markers of myocardial damage (troponin T and ProBNP) were measured. RESULTS We included 68 patients, 33% of whom had COPD (59% undiagnosed). The patients with COPD presented higher arterial stiffness values after adjusting for age and blood pressure readings. The troponin T and ProBNP levels were higher in the patients with COPD. CONCLUSIONS Arterial stiffness is greater in patients with an ACE if they have concomitant COPD. These findings can help explain the poorer prognosis of patients with both conditions.
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Affiliation(s)
- P Almagro
- Unidad de Pacientes Crónicos Complejos, Departamento de Medicina Interna, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España; Departamento de Medicina Interna, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España.
| | - E Acosta
- Departamento de Medicina Interna, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España
| | - A Navarro
- Servicio de Neumología, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España
| | - M F Murillo
- Departamento de Medicina Interna, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España
| | - S Valdivielso
- Servicio de Cardiología, Hospital Universitario Mútua Terrassa, Universidad de Barcelona, Terrasa, Barcelona, España
| | - A de la Sierra
- Departamento de Medicina Interna, Hospital Universitario Mútua Terrasa, Universidad de Barcelona, Terrasa, Barcelona, España
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del Carpio L, Gomila P, Camacho S, Moron S, Riudavets M, Molto C, Bujosa A, Borrell M, Teres R, Martin B, Gallardo P, Acosta E, Tilea L, Soto A, De Quintana C, Craven-Bartle J, Gallardo A, Gomez B, Bonilla S, Gallego O. Impaired survival in resected glioblastoma multiforme patients treated with early chemoradiation. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy273.376] [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: 11/14/2022] Open
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Sancho Pardo G, Acosta E, Tilea L, Hernández D, Farré N, Balart J, Jornet N, Gómez de Segura G, Craven-Bartle J. PO-0829: Postprostatectomy dose intensified salvage radiotherapy is associated with grade 3 late haematuria. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31139-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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McMahon D, Zheng L, Cyktor J, Aga E, Macatangay B, Godfrey C, Para M, Mitsuyasu R, Hogg E, Hesselgesser J, Acosta E, Gandhi R, Mellors J. Single romidepsin infusions do not increase HIV expression in persons on ART (A5315). J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30557-4] [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: 10/23/2022] Open
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Farré N, Acosta E, Balart J, Sancho G, Majercakova K, Carrasco P, Fernández A, Camacho M, Majem M, Giménez A, Martínez E, Trujillo J, Torrego A, Pajares V, Craven-Bartle J. P3.14-014 Lung Stereotactic Body Radiotherapy (SBRT): Patient's Outcome and Prognostic Factors. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1787] [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: 10/18/2022]
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Bui T, Phan A, Monteiro D, Lan Q, Ceglio M, Acosta E, Krishnamurthy P, Striolo A. Evidence of Structure-Performance Relation for Surfactants Used as Antiagglomerants for Hydrate Management. Langmuir 2017; 33:2263-2274. [PMID: 28110536 DOI: 10.1021/acs.langmuir.6b04334] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Molecular dynamics simulations were employed to study the structure of molecularly thin films of antiagglomerants adsorbed at the interface between sII methane hydrates and a liquid hydrocarbon. The liquid hydrocarbon was composed of dissolved methane and higher-molecular-weight alkane such as n-hexane, n-octane, and n-dodecane. The antiagglomerants considered were surface-active compounds with three hydrophobic tails and a complex hydrophilic head that contains both amide and tertiary ammonium cation groups. The length of the hydrophobic tails and the surface density of the compounds were changed systematically. The results were analyzed in terms of the preferential orientation of the antiagglomerants, density distributions of various molecular compounds, and other molecular-level properties. At low surface densities, the hydrophobic tails do not show preferred orientation, irrespectively of the tail length. At sufficiently high surface densities, our simulations show pronounced differences in the structure of the interfacial film depending on the molecular features and on the type of hydrocarbons present in the system. Some antiagglomerants are found to pack densely at the interface and exclude methane from the interfacial region. Under these conditions, the antiagglomerant film resembles a frozen interface. The hydrophobic tails of the antiagglomerants that show this feature has a length comparable to that of the n-dodecane in the liquid phase. It is possible that the structured interfacial layer is in part responsible for determining the performance of antiagglomerants in flow-assurance applications. The simulation results are compared against experimental data obtained with the rocking cell apparatus. It was found that the antiagglomerants for which our simulations suggest evidence of a frozen interface at sufficiently high surface densities are those that show better performance in rocking cell experiments.
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Affiliation(s)
- Tai Bui
- Department of Chemical Engineering, University College London , WC1 E7JE London, U.K
| | - Anh Phan
- Department of Chemical Engineering, University College London , WC1 E7JE London, U.K
| | | | - Qiang Lan
- Halliburton , Houston, Texas 77032, United States
| | - Mark Ceglio
- Halliburton , Houston, Texas 77032, United States
| | - Erick Acosta
- Halliburton , Houston, Texas 77032, United States
| | | | - Alberto Striolo
- Department of Chemical Engineering, University College London , WC1 E7JE London, U.K
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González Y, Mancebo A, Acosta E, Sosa I, León A, Blanco D, González C, Curbelo A, Prado P, Morgado L, Quesada R, Pérez A, Hugues B, Fuentes D, Samada I, Casacó A, Sánchez S, Contreras F, Contreras B, Ballart N, Valdés O, Lemus M, Estévez T, Jaime U, Díaz Y, Peña A, Ronda M, Pérez B, Escalona M, Mantilla N, Matos D. Toxicological safety evaluation of ACM T1H by intravenously route in CENP: Beagle dogs. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.623] [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: 11/30/2022]
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Phan A, Bui T, Acosta E, Krishnamurthy P, Striolo A. Molecular mechanisms responsible for hydrate anti-agglomerant performance. Phys Chem Chem Phys 2016; 18:24859-71. [DOI: 10.1039/c6cp03296f] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Steered and equilibrium molecular dynamics simulations were employed to study the coalescence of a sI hydrate particle and a water droplet within a hydrocarbon mixture.
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Affiliation(s)
- Anh Phan
- Department of Chemical Engineering
- University College London
- WC1 E7JE London
- UK
| | - Tai Bui
- Department of Chemical Engineering
- University College London
- WC1 E7JE London
- UK
| | | | | | - Alberto Striolo
- Department of Chemical Engineering
- University College London
- WC1 E7JE London
- UK
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Birke A, Acosta E, Aluja M. Limits to the host range of the highly polyphagous tephritid fruit fly Anastrepha ludens in its natural habitat. Bull Entomol Res 2015; 105:743-753. [PMID: 26343267 DOI: 10.1017/s0007485315000711] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Anastepha ludens (Diptera: Tephritidae) is a highly polyphagous fruit fly that is able to develop in a wide range of hosts. Understanding the limits of this pest's host range could provide valuable information for pest management and plant breeding for pest resistance. Previous studies have shown that guavas (Psidium guajava (Myrtaceae) L.), are not attacked under natural conditions by A. ludens. To understand this phenomenon, guavas were exposed to natural infestation by A. ludens and to other fruit fly species that infest guavas in nature (Anastrepha striata Schiner, Anastepha fraterculus (Wiedemann), Anastepha obliqua (Macquart)). Once the susceptible phenological stage of guavas was determined, fruit infestation levels were compared between A. ludens and A. striata. Choice and non-choice tests were performed under field-cage conditions. Under field conditions, guavas were susceptible to A. striata and A. fraterculus attack all the way from when fruit was undeveloped to when fruit began to ripen. No infestation by A. ludens was recorded under natural conditions. Similar results were obtained when forced exposures were performed, indicating that unripe guavas were preferred by A. striata over ripe fruit, and that infestation rates were higher at early fruit maturity stages. Under forced oviposition conditions, A. ludens larvae were unable to develop in unripe guavas but did so in fully ripe fruit. However, A. ludens fitness parameters were dramatically affected, exhibiting reduced survival and reduced pupal weight compared to conspecifics that developed in a natural host, grapefruit. We confirm that P. guajava should not be treated as a natural host of this pestiferous species, and suggest that both behavioral aspects and the fact that larvae are unable to adequately develop in this fruit, indeed represent clear limits to A. ludens's broad host range.
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Affiliation(s)
- A Birke
- Instituto de Ecología A.C.,Apartado Postal 63,91070 Xalapa,Veracruz,Mexico
| | - E Acosta
- Instituto de Ecología A.C.,Apartado Postal 63,91070 Xalapa,Veracruz,Mexico
| | - M Aluja
- Instituto de Ecología A.C.,Apartado Postal 63,91070 Xalapa,Veracruz,Mexico
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Navarro A, Costa R, Rodriguez-Carballeira M, Yun S, Lapuente A, Barrera A, Acosta E, Viñas C, Heredia J, Almagro P. Prognostic assessment of mortality and hospitalizations of outpatients with advanced chronic obstructive pulmonary disease. Usefulness of the CODEX index. Rev Clin Esp 2015. [DOI: 10.1016/j.rceng.2015.07.002] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Infante J, Bernal Y, Acosta E, Gómez L, Torres O. Estudio preliminar de la diversidad genética de perros con fenotipo Poodle en Colombia usando microsatélites. ARCH ZOOTEC 2015. [DOI: 10.21071/az.v64i247.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
El objetivo de este estudio fue estimar la variabilidad genética de una muestra poblacional de perros con fenotipo Poodle en Bogotá - Colombia. La variabilidad genética de 81 perros con fenotipo Poodle se estudió mediante el genotipado de cinco loci de microsatélites. La heterocigosidad esperada (HE) para los loci: AHTK253, CXX279, INU030, INU055 y REN162C04 fue de 0,747, 0,788, 0,767, 0,679 y 0,751, respectivamente. La HE para el conjunto de la población fue de 0,746. La población de Poodles analizada tuvo una alta diversidad genética y se encontró que no existe una subestructuración poblacional, hecho que desvía el equilibrio HW; con lo que demuestra que la población de Poodle colombiana sea una perfecta candidata para estudios de asociación genética, y de conservación de la biodiversidad de los animales domésticos.
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Brito V, Delgado L, Mellal K, Soto Y, Acosta E, Pérez A, Fernández J, Griñán T, Bécquer M, Marleau S, Léon O, Vázquez A. Arresting atherosclerosis development and progression by immunization with an anti-glycosaminoglycan chimeric monoclonal antibody in apolipoprotein E-deficient mice. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.317] [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: 10/23/2022]
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Soto Y, Acosta E, Delgado-Roche L, Pérez A, Mesa N, Alfonso Y, Batlle F, Bécquer M, Griñán T, Brito V, Sarduy R, Zayas F, Vázquez A. A potential idiotipic vaccine for the treatment of atherosclerosis based on a chimeric mouse/human anti-sulfated glycosaminoglycans antibody. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.1053] [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: 11/25/2022]
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Covington E, Younge K, Chen X, Lee C, Matuszak M, Kessler M, Acosta E, Keranen W, Orow A, Filpansick S, Moran J. SU-D-BRD-03: Improving Plan Quality with Automation of Treatment Plan Checks. Med Phys 2015. [DOI: 10.1118/1.4923869] [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: 11/07/2022] Open
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Hadley S, Kessler M, Litzenberg D, Lee C, Irrer J, Chen X, Acosta E, Weyburne G, Keranen W, Lam K, Covington E, Younge K, Matuszak M, Moran J. WE-G-BRA-02: SafetyNet: Automating Radiotherapy QA with An Event Driven Framework. Med Phys 2015. [DOI: 10.1118/1.4926072] [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: 11/07/2022] Open
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Acosta E, Hernández A. Vascular density, protein and mRNA expression of hypoxia-inducible factor 2alpha, vascular endothelial growth factor and its type 2 receptor in the yolk sac membrane of three- and four-day-old chicken embryos incubated at 355 and 1378 metres above sea level. Journal of Applied Animal Research 2013. [DOI: 10.1080/09712119.2013.822802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Delgado-Roche L, Acosta E, Soto Y, Hernández-Matos Y, Olivera A, Fernández-Sánchez E, Vázquez AM. The treatment with an anti-glycosaminoglycan antibody reduces aortic oxidative stress in a rabbit model of atherosclerosis. Free Radic Res 2013; 47:309-15. [DOI: 10.3109/10715762.2013.772995] [Citation(s) in RCA: 12] [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: 11/13/2022]
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Acosta E, Hernández A. Vascular density, hypoxia inducible factor, vascular endothelial growth factor, and its receptor expression in the chorioallantois of relatively normoxic and hypoxic chicken embryos, at 6 and 7 days of incubation, and corresponding weight values. Poult Sci 2012; 91:2637-44. [DOI: 10.3382/ps.2012-02430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Affiliation(s)
- C. Ortiz
- a Instituto de Optica, C.S.I.C., Serrano 121, 28006 Madrid, Spain
| | - C.N. Afonso
- a Instituto de Optica, C.S.I.C., Serrano 121, 28006 Madrid, Spain
| | - E. Acosta
- a Instituto de Optica, C.S.I.C., Serrano 121, 28006 Madrid, Spain
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Fan ESC, Bussmann M, Acosta E. Equilibrium configurations of drops attached to spheres immersed in a uniform laminar flow. CAN J CHEM ENG 2010. [DOI: 10.1002/cjce.20414] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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McMahon D, Jones J, Wiegand A, Gange SJ, Kearney M, Palmer S, McNulty S, Metcalf JA, Acosta E, Rehm C, Coffin JM, Mellors JW, Maldarelli F. Short-course raltegravir intensification does not reduce persistent low-level viremia in patients with HIV-1 suppression during receipt of combination antiretroviral therapy. Clin Infect Dis 2010; 50:912-9. [PMID: 20156060 DOI: 10.1086/650749] [Citation(s) in RCA: 184] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Combination antiretroviral therapy suppresses but does not eradicate human immunodeficiency virus type 1 (HIV-1) in infected persons, and low-level viremia can be detected despite years of suppressive antiretroviral therapy. Short-course (28-day) intensification of standard antiretroviral combination therapy is a useful approach to determine whether complete rounds of HIV-1 replication in rapidly cycling cells contribute to persistent viremia. We investigated whether intensification with the integrase inhibitor raltegravir decreases plasma HIV-1 RNA levels in patients receiving suppressive antiretroviral therapy. METHODS Subjects (n = 10) with long-term HIV-1 suppression receiving combination antiretroviral regimens had their regimens intensified for 4 weeks with raltegravir. Plasma HIV-1 RNA level was determined before, during, and after the 4-week intensification period, using a sensitive assay (limit of detection, 0.2 copies of HIV-1 RNA/mL of plasma). A 4-week intensification course was chosen to investigate potential HIV-1 replication in cells with relatively short (approximately 1-14-day) half-lives. RESULTS There was no evidence in any subject of a decline in HIV-1 RNA level during the period of raltegravir intensification or of rebound after discontinuation. Median levels of HIV-1 RNA before (0.17 log10 copies/mL), during (0.04 log10 copies/mL), and after (0.04 log10 copies/mL) raltegravir intensification were not significantly different (P > .1 for all comparisons in parametric analyses). High-performance liquid chromatography and mass spectroscopy experiments confirmed that therapeutic levels of raltegravir were achieved in plasma during intensification. CONCLUSIONS Intensification of antiretroviral therapy with a potent HIV-1 integrase inhibitor did not decrease persistent viremia in subjects receiving suppressive regimens, indicating that rapidly cycling cells infected with HIV-1 were not present. Eradication of HIV-1 from infected persons will require new therapeutic approaches. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT00618371.
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Affiliation(s)
- D McMahon
- Department of Infectious Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Filenkova A, Acosta E, Brodersen PM, Sodhi RNS, Farnood R. Distribution of inkjet ink components via ToF-SIMS imaging. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3352] [Citation(s) in RCA: 9] [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: 11/11/2022]
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Díaz-Flores L, Gutiérrez R, Madrid JF, Varela H, Valladares F, Acosta E, Martín-Vasallo P, Díaz-Flores L. Pericytes. Morphofunction, interactions and pathology in a quiescent and activated mesenchymal cell niche. Histol Histopathol 2009; 24:909-69. [PMID: 19475537 DOI: 10.14670/hh-24.909] [Citation(s) in RCA: 241] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We review the morphofunctional characteristics of pericytes and report our observations. After a brief historical background, we consider the following aspects of pericytes: A) Origin in embryonic vasculogenesis (mesenchymal stem cells, neurocrest and other possible sources) and in embryonic and postnatal life angiogenesis (pre-existing pericytes, fibroblast/ myofibroblasts and circulating progenitor cells). B) Location in pericytic microvasculature and in the other blood vessels (including transitional cell forms and absence in lymphatic vessels), incidence (differences depending on species, topographical location, and type and stage of vessels) and distribution (specific polarities) in blood vessels. C) Morphology (cell body, and longitudinal and circumferential cytoplasmic processes), structure (nucleus, cytoplasmic organelles and distribution of microtubules, intermediate filaments and microfilaments) and surface (caveolae system). D) Basement membrane disposition, formation, components and functions. E) Contacts with endothelial cells (ECs) (peg and socket arrangements, adherent junctions and gap junctions) and with basal membrane (adhesion plaques). F) Molecular expression (pericyte marker identification). G) Functions, such as vessel stabilization, regulation of vascular tone and maintenance of local and tissue homeostasis (contractile capacity and vessel permeability regulation), matrix protein synthesis, macrophage-like properties, immunological defense, intervention in coagulation, participation in mechanisms that regulate the quiescent and angiogenic stages of blood vessels (including the behaviour of pericytes during sprouting angiogenesis and intussuceptive vascular growth, as well as pericyte interactions with endothelium and other cells, and with extracellular matrix) and plasticity, as progenitor cells with great mesenchymal potential, originating other pericytes, fibroblast/myofibroblasts, preadipocytes, chondroblasts, osteoblasts, odontoblasts, vascular smooth muscle and myointimal cells. This mesenchymal capacity is seen in a broad section on the perivascular mesenchymal cell niche hypothesis and in the concept of pericyte and EC "marriage and divorce". H) Peculiar pericyte types, such as hepatic stellate cells (Ito cells), bone marrow reticular cells and mesangial cells. I) Involvement in pathological processes, such as repair through granulation tissue, pericyte-derived tumors, tumor angiogenesis and tumoral cell metastasis, diabetic microangiopathy, fibrosis, atherosclerosis and calcific vasculopathy, lymphedema distichiasis, chronic venous insufficiency, pulmonary hypertension, Alzheimer disease and multiple sclerosis. J) Clinical and therapeutic implications (de-stabilization of vessels or formation of a stable vasculature).
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Affiliation(s)
- L Díaz-Flores
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
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Amro H, Roberson P, Smith C, Acosta E, Moran J. SU-GG-T-253: Interface Dosimetry in Heterogeneous Water Phantom Using EBT Film. Med Phys 2008. [DOI: 10.1118/1.2962005] [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: 11/07/2022] Open
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Acosta E, McShan D, Fraass B. SU-FF-T-253: Improvement of the Convolution/Superposition Algorithm for IMRT Dose Calculations. Med Phys 2007. [DOI: 10.1118/1.2760914] [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: 11/07/2022] Open
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31
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More H, Humar B, Weber W, Ward R, Christian A, Lintott C, Graziano F, Ruzzo AM, Acosta E, Boman B, Harlan M, Ferreira P, Seruca R, Suriano G, Guilford P. Identification of seven novel germline mutations in the human E-cadherin (CDH1) gene. Hum Mutat 2007; 28:203. [PMID: 17221870 DOI: 10.1002/humu.9473] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Hereditary diffuse gastric cancer (HDGC) is a cancer predisposition syndrome caused by germline mutation of the gene encoding the tumour-suppressor E-cadherin (CDH1). We describe the search for CDH1 mutations in 36 new diffuse gastric cancer families. All 16 CDH1 exons, neighbouring intronic sequence and an essential promoter region were screened by DNA sequencing. We detected nine different mutations, seven of which were novel. Of the seven novel mutations, five were identified in families who met the IGCLC clinical criteria for HDGC. Two mutations resulted in a premature stop codon and truncation of the protein. Three mutations affected splice sites; two of the splice-site mutations were shown by RT-PCR to disturb normal CDH1 splicing, while the third splice-site mutation was present in two unrelated HDGC families. The remaining two mutations resulted in amino acid substitutions and impaired the ability of E-cadherin protein to form cellular aggregates and suppress invasion in vitro. Together with the occurrence of extra-gastric tumours such as lobular breast and colorectal cancer, these findings further extend the types of CDH1 mutations and the spectrum of tumours associated with HDGC.
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Affiliation(s)
- H More
- Cancer Genetics Laboratory, University of Otago, Dunedin, Aotearoa, New Zealand
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Acosta E, Peña O, Naftolin F, Palumbo A, Ávila J. O-204. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.233] [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: 10/24/2022]
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Acosta E, McShan D, Kong F, Fraass B, Chetty I. TH-E-230A-06: Comparison of Correction and Model Based Dose Algorithms in Lung Cancer Retrospective Dose Recalculation and Treatment Outcome Evaluation. Med Phys 2006. [DOI: 10.1118/1.2241968] [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: 11/07/2022] Open
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34
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Segura-Velázquez R, Pérez-Torres A, Rosas G, Toledo A, Restelli M, Acosta E, Corral R, Rosetti F, Fragoso G, Grinstein S, Sciutto E. A novel synthetic adjuvant effectively enhances the immunogenicity of the influenza vaccine. Vaccine 2006; 24:1073-80. [PMID: 16202486 DOI: 10.1016/j.vaccine.2005.09.014] [Citation(s) in RCA: 25] [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] [Received: 06/09/2005] [Revised: 08/25/2005] [Accepted: 09/05/2005] [Indexed: 11/20/2022]
Abstract
Influenza vaccination is a key intervention to reduce morbidity and mortality provoked by this disease. To date, the challenge of improving its efficacy remains unmet. The immunogenic synthetic peptide GK1 from Taenia crassiceps cysticerci was tested herein in its capacity as adjuvant, co-administered with the inactivated anti-influenza vaccine before and after challenge with influenza virus in both young and aged mice. Co-administration of GK1 with the influenza vaccine increased levels of anti-influenza antibodies in aged mice before and after infection, reduced the local inflammation that accompanied influenza vaccination itself and favored virus clearance after infection in both young and aged mice.
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Affiliation(s)
- R Segura-Velázquez
- Instituto de Investigaciones Biomédicas, A.P. 70228, Ciudad Universitaria, 04510 México, D.F., México
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35
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Ferraz-Amaro I, Cozar-Castellano I, Arteaga MF, Machargo MV, Acosta E, Avila J, Bustabad S, Trujillo E, González T, Martín-Vasallo P. [The search for new autoantigens in Sjögren's syndrome]. Reumatol Clin 2005; 1:187-192. [PMID: 21794263 DOI: 10.1016/s1699-258x(05)72743-1] [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] [Subscribe] [Scholar Register] [Received: 06/11/2004] [Accepted: 07/25/2005] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To identify new autoantigens related to Sjögren's syndrome and to determine their prevalence in patients and healthy individuals. MATERIAL AND METHODS Serological sampling was performed in a patient with Sjögren's syndrome through the use of a human brain expression genotec (SEREX technique) to determine expression of known autoantigens and previously undescribed proteins. The presence of a previously unknown protein was found. Several proteins were obtained and two were selected to be studied (a human protein called Tau and an unknown protein described by our group and named hlscA). Both Tau and hIscA cDNA were transformed into an expression plasmid to obtain their recombinant proteins. RESULTS Using a Western-blot technique we investigated the presence of anti-Tau and anti-hlscA autoantibodies in the sera of 19 patients with Sjögren's syndrome and in the sera of 20 controls. No statistically significant differences were found in the expression of anti-Tau antibodies between patients with Sjögren's syndrome and controls but values of anti-hlscA autoantibodies were significantly lower in patients with Sjögren's syndrome. CONCLUSION We identified Tau and hIscA proteins as new autoantigens in Sjögren's syndrome. Anti-hlscA antibody values were significantly lower in patients with Sjögren's syndrome than in healthy controls. Although no statistically significant differences in values of anti-Tau antibodies were found between Sjögren's syndrome patients and controls, this is the first time antibodies against this protein have been detected in Sjögren's syndrome.
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Affiliation(s)
- I Ferraz-Amaro
- Servicio de Reumatología. Hospital Universitario de Canarias. Santa Cruz de Tenerife. España
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Palumbo A, Acosta E, Peña O, Perez R, Naftolin F, Avila J. Effect of Angiotensin II (AngII) on Apoptosis of Human Granulosa-Lutein Cells: A Correlation With IVF Outcome. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.1088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rosu M, Coselmon M, Acosta E, Fraass B, McShan D, Chetty I. SU-FF-T-76: Implementation and Initial Testing of a Monte Carlo Based Algorithm for IMRT Inverse Treatment Planning. Med Phys 2005. [DOI: 10.1118/1.1997747] [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: 11/07/2022] Open
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38
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Soto M, Acosta E, Ríos S. Performance analysis of curvature sensors: optimum positioning of the measurement planes. Opt Express 2003; 11:2577-2588. [PMID: 19471371 DOI: 10.1364/oe.11.002577] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Curvature sensors are used to measure wave-front aberrations in a number of different applications ranging from adaptive optics to optical testing. In practice, their performance is limited not only by the quality of the detector used for irradiance measurements but also by the separation between measurement planes used for the calculation of the axial derivative of intensity. This work resolves the problem of determining the separation between intensity measurement planes thus optimizing the variance in experimental measurements. To do this, the variance of the local curvature of the phase will be analyzed as a function of the noise level in the measurements and the separation between planes. Moreover, error bounds will be established for experimental measurements.
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Affiliation(s)
- J Montaner
- St Paul's Hospital, University of British Columbia, Vancouver, V6Z 1Y6, British Columbia, Canada.
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Gulick RM, Smeaton LM, D'Aquila RT, Eron JJ, Currier JS, Gerber JG, Acosta E, Sommadossi JP, Tung R, Snyder S, Kuritzkes DR, Murphy RL. Indinavir, nevirapine, stavudine, and lamivudine for human immunodeficiency virus-infected, amprenavir-experienced subjects: AIDS Clinical Trials Group protocol 373. J Infect Dis 2001; 183:715-21. [PMID: 11181147 DOI: 10.1086/318820] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2000] [Revised: 11/01/2000] [Indexed: 11/03/2022] Open
Abstract
This prospective, multicenter, open-label study was designed to determine the antiretroviral activity and safety of a 4-drug regimen: 1000 mg indinavir every 8 h with 200 mg nevirapine, 40 mg stavudine, and 150 mg lamivudine, each given twice daily in amprenavir-experienced subjects. The primary end points of the study were the human immunodeficiency virus (HIV) RNA level and CD4 cell count responses. Fifty-six subjects were enrolled and were changed from amprenavir-containing regimens to the 4-drug regimen. Overall, at week 48, 33 (59%) of 56 subjects had HIV RNA levels <500 copies/mL (intent-to-treat analysis, where missing values equal > or =500 copies/mL) and CD4 cell counts increased by 94 cells/mm(3) from baseline. Subjects who had previously taken amprenavir combination therapy were more likely to experience virologic failure than those who had taken amprenavir monotherapy (odds ratio, 7.7; P=.0012). In this study, most subjects who had taken amprenavir-based regimens and who changed to a 4-drug regimen achieved subsequent durable virologic suppression.
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Affiliation(s)
- R M Gulick
- Weill Medical College of Cornell University and New York University School of Medicine, Cornell Clinical Trials Unit, New York, NY 10021, USA.
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41
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Gulick RM, Hu XJ, Fiscus SA, Fletcher CV, Haubrich R, Cheng H, Acosta E, Lagakos SW, Swanstrom R, Freimuth W, Snyder S, Mills C, Fischl M, Pettinelli C, Katzenstein D. Randomized study of saquinavir with ritonavir or nelfinavir together with delavirdine, adefovir, or both in human immunodeficiency virus-infected adults with virologic failure on indinavir: AIDS Clinical Trials Group Study 359. J Infect Dis 2000; 182:1375-84. [PMID: 11023461 DOI: 10.1086/315867] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 06/30/2000] [Indexed: 11/03/2022] Open
Abstract
This study compared antiretroviral activity among 6 "salvage" therapy regimens. The study was a prospective, randomized, 2x3 factorial, multicenter study of the AIDS Clinical Trials Group. The study enrolled 277 human immunodeficiency virus (HIV)-infected patients naive to nonnucleoside analogues who had taken indinavir >6 months. The patients had 2000-200,000 HIV RNA copies/mL. Patients received saquinavir with ritonavir or nelfinavir together with delavirdine and/or adefovir and were followed for safety and antiretroviral response between baseline and week 16. At week 16, 30% (77/254) of patients had </=500 HIV RNA copies/mL. Virologic response did not differ significantly between pooled ritonavir and nelfinavir groups (28% vs. 33%; P=.50) or between pooled delavirdine and delavirdine/adefovir groups (40% vs. 33%; P=.42). Pooled delavirdine groups had a greater virologic response rate than did adefovir groups (40% vs. 18%; P=.002). Overall, one-third of patients who experienced virologic failure on an indinavir-containing regimen suppressed virus load levels while they were taking a new salvage regimen.
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Affiliation(s)
- R M Gulick
- Cornell Clinical Trials Unit, Division of International Medicine and Infectious Diseases, Dept. of Medicine, Weill Medical College of Cornell University, New York, NY 10021, USA.
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42
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Gas MI, Segovia N, Morton O, Cervantes ML, Godinez L, Peña P, Acosta E. 137Cs and relationships with major and trace elements in edible mushrooms from Mexico. Sci Total Environ 2000; 262:73-89. [PMID: 11059844 DOI: 10.1016/s0048-9697(00)00574-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
137Cs and 40K specific activity together with major and trace elements were determined in soil samples and in different edible wild mushroom species collected from a seminatural temperate forest ecosystem located in the central part of the Mexican Volcanic Belt. The activity measurements were made using a gamma-ray spectrometer system with a high purity germanium (HpGe) detector. The major and trace elements were determined using emission spectrography and mass spectrometry, respectively. The aggregated transfer factors for 137Cs were estimated in 30 local mushroom species collected from 1993 to 1999. Differences as large as three orders of magnitude were observed. The contribution of mushrooms for the total 137Cs dietary intake by the local population was estimated to be 37%. Mushrooms also showed to be good accumulators for Rb, Cu, Cs and Se.
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Acosta E, Temkin B, Krummel TM, Heinrichs WL. G2H--graphics-to-haptic virtual environment development tool for PC's. Stud Health Technol Inform 2000; 70:1-3. [PMID: 10977518] [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: 02/17/2023]
Abstract
For surgical training and preparations, the existing surgical virtual environments have shown great improvement. However, these improvements are more in the visual aspect. The incorporation of haptics into virtual reality base surgical simulations would enhance the sense of realism greatly. To aid in the development of the haptic surgical virtual environment we have created a graphics to haptic, G2H, virtual environment developer tool. G2H transforms graphical virtual environments (created or imported) to haptic virtual environments without programming. The G2H capability has been demonstrated using the complex 3D pelvic model of Lucy 2.0, the Stanford Visible Female. The pelvis was made haptic using G2H without any further programming effort.
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Affiliation(s)
- E Acosta
- Dept. of Computer Science, Texas Tech University, Lubbock 79409, USA
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Abstract
The use of small-diameter portosystemic shunts for the treatment of bleeding esophageal varices caused by portal hypertension has emerged as an outgrowth of the development of polytetrafluoroethylene vascular grafts, which allow the use of a narrow lumen. We report our experience with this type of graft over a 10-year period. Thirty-three patients with good liver function (Child-Pugh class A) were electively operated. The average age of these patients was 45 years (range 17 to 71 years). Twenty-nine patients had liver cirrhosis, one had portal fibrosis, and three had idiopathic portal hypertension. Operative mortality was 3%, and the rebleeding rate was 15%. Postoperative encephalopathy was observed in 14 patients (11%), three of whom had grade III to IV encephalopathy. The remaining 11 patients, had mild encephalopathy that was easily controlled. Postoperative angiography showed shunt patency in 81% of the patients, reduction in portal vein diameter in 33% of the patients, and portal vein thrombosis in 6%. Good postoperative quality of life was observed in 63% of the patients. Survival according to the Kaplan-Meier actuarial method was 81% at 12 months, 56% at 60 months, and 36% at 10 years. These shunts are a good alternative for patients being considered for surgery in whom other portal blood flow preserving procedures (i.e., elective shunts, devascularization with esophageal transection) are not feasible.
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Affiliation(s)
- M A Mercado
- Department of Surgery, Instituto Nacional de la Nutrición Salvador Zubirán, Mexico City, Mexico
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Mascaró C, Acosta E, Ortiz JA, Rodríguez JC, Marrero PF, Hegardt FG, Haro D. Characterization of a response element for peroxisomal proliferator activated receptor (PPRE) in human muscle-type carnitine palmitoyltransferase I. Adv Exp Med Biol 2000; 466:79-85. [PMID: 10709630 DOI: 10.1007/0-306-46818-2_8] [Citation(s) in RCA: 6] [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] [Indexed: 12/13/2022]
Affiliation(s)
- C Mascaró
- Department of Biochemistry and Molecular Biology, University of Barcelona, School of Pharmacy, Spain
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46
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Carrero JC, Petrossian P, Acosta E, Sánchez-Zerpa M, Ortiz-Ortiz L, Laclette JP. Cloning and characterization of Entamoeba histolytica antigens recognized by human secretory IgA antibodies. Parasitol Res 2000; 86:330-4. [PMID: 10780744 DOI: 10.1007/s004360050052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
To identify the Entamoeba histolytica antigens capable of inducing secretory IgA (sIgA) responses in humans, a cDNA library from the strain HM1:IMSS was immuno-screened with saliva from patients with intestinal amebiasis or amebic liver abscess. Clones isolated with sIgA antibodies from patients with intestinal amebiasis corresponded to the known serine-rich protein isoform, a 29 kDa cysteine-rich protein and 1-alpha elongation factor. Clones corresponding to enolase, cyclophilin, ribosomal protein L23a, and an Hsp70 family protein were isolated with sIgA from a patient with amebic liver abscess. A glutamic acid-rich peptide (EhGARP) positive with sIgA from a patient with amebic liver abscess was also isolated; for EhGARP, no homologs were found in the protein databases. The antigens isolated are potentially useful in the development of an oral vaccine or new diagnostic tools for amebiasis.
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Affiliation(s)
- J C Carrero
- Department of Immunology, Instituto de Investigaciones Biomédicas, UNAM, México DF, México
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Abstract
BACKGROUND Adrenalectomy in Cushing's syndrome and disease involves particular risks and complications. The aim of the study was to compare the open posterior and the flank laparoscopic approaches in this group of patients. METHODS Forty patients who underwent unilateral or bilateral adrenalectomy for hypercortisolism between 1991 and 1999 were studied. Patients were divided as follows: adenoma--5 laparoscopic and 6 open; hyperplasia--17 laparoscopic and 12 open. Demographics, surgical details, outcome, and complications were comparatively analyzed. RESULTS Patients undergoing laparoscopic or open adrenalectomy were comparable in terms of age, sex distribution, body mass index, respiratory status, and anesthetic risk. Operative time was longer in the laparoscopic group. One patient in the laparoscopic group died of upper gastrointestinal tract bleeding on postoperative day 17. Two patients in the open group and one in the laparoscopic group experienced postoperative complications. Cure of the disease occurred in all patients. Mild abdominal wall pain developed in one patient in each group. No abdominal wall weakness was identified in either group. CONCLUSIONS Cure rate and operative and long-term morbidity were similar for laparoscopic and open adrenalectomies in this series. However, it is important to emphasize that late complications in our patients who underwent the posterior open procedure were rather infrequent.
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Affiliation(s)
- E Acosta
- Department of Surgery, Instituto Nacional de la Nutrición Salvador Zubirán, Tlalpan, México
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49
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50
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Vilá LM, Mayor AM, Valentín AH, Rodríguez SI, Reyes ML, Acosta E, Vilá S. Association of sunlight exposure and photoprotection measures with clinical outcome in systemic lupus erythematosus. P R Health Sci J 1999; 18:89-94. [PMID: 10461313] [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: 02/13/2023]
Abstract
This study was designed to explore the relationship of sunlight exposure and ultraviolet (UV) light protection measures with clinical outcome in systemic lupus erythematosus (SLE). A structured questionnaire was administered to sixty Puerto Rican SLE patients, to assess their attitudes and behavior regarding sunlight exposure and photoprotection measures. Medical records were reviewed to evaluate the clinical outcome measures that included: clinical manifestations, number of SLE-related hospitalizations, number of exacerbations and pharmacologic treatment. Almost all (98.3%) patients were well acquainted of sunlight effects on disease activity. Two thirds were exposed to direct sunlight for an average of less than one hour per day and 33.3% for one hour or more. Thirty patients (50%) reported use of sunscreen, with sun protective factor of 15 or greater, when exposed to sunlight. Less than 40% of patients regularly wore hat or long-sleeves clothes to protect from sunlight. Although there were some clinical differences between the groups with different sunlight exposure times, none reached statistical significance. Also, no significant differences were found between the groups in regards to sunlight protective clothes. However, patients that regularly used sunscreen had significantly lower renal involvement (13.3 vs 43.3%), thrombocytopenia (13.3 vs 40%), hospitalizations (26.7 vs. 76.7%), and requirement of cyclophosphamide treatment (6.7 vs. 30%) than patients that did not used it (P < 0.05). We conclude that use of sunscreen photoprotection was associated with a better clinical outcome in our SLE patients. These findings further support the importance and benefits of photoprotective measures in patients with SLE.
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Affiliation(s)
- L M Vilá
- Department of Internal Medicine, Universidad Central del Caribe School of Medicine, Bayamón, Puerto Rico 00960-6032
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