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Davies HG, Thorley EV, Al-Bahadili R, Sutton N, Burt J, Hookham L, Karampatsas K, Lambach P, Muñoz F, Cutland CL, Omer S, Le Doare K. Defining and reporting adverse events of special interest in comparative maternal vaccine studies: a systematic review. Vaccine X 2024; 18:100464. [PMID: 38495929 PMCID: PMC10943481 DOI: 10.1016/j.jvacx.2024.100464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/07/2024] [Accepted: 02/18/2024] [Indexed: 03/19/2024] Open
Abstract
Introduction The GAIA (Global Alignment on Immunisation Safety Assessment in Pregnancy) consortium was established in 2014 with the aim of creating a standardised, globally coordinated approach to monitoring the safety of vaccines administered in pregnancy. The consortium developed twenty-six standardised definitions for classifying obstetric and infant adverse events. This systematic review sought to evaluate the current state of adverse event reporting in maternal vaccine trials following the publication of the case definitions by GAIA, and the extent to which these case definitions have been adopted in maternal vaccine safety research. Methods A comprehensive search of published literature was undertaken to identify maternal vaccine research studies. PubMed, EMBASE, Web of Science, and Cochrane were searched using a combination of MeSH terms and keyword searches to identify observational or interventional studies that examined vaccine safety in pregnant women with a comparator group. A two-reviewer screening process was undertaken, and a narrative synthesis of the results presented. Results 14,737 titles were identified from database searches, 435 titles were selected as potentially relevant, 256 were excluded, the remaining 116 papers were included. Influenza vaccine was the most studied (25.0%), followed by TDaP (20.7%) and SARS-CoV-2 (12.9%).Ninety-one studies (78.4%) were conducted in high-income settings. Forty-eight (41.4%) utilised electronic health-records. The majority focused on reporting adverse events of special interest (AESI) in pregnancy (65.0%) alone or in addition to reactogenicity (27.6%). The most frequently reported AESI were preterm birth, small for gestational age and hypertensive disorders. Fewer than 10 studies reported use of GAIA definitions. Gestational age assessment was poorly described; of 39 studies reporting stillbirths 30.8% provided no description of the gestational age threshold. Conclusions Low-income settings remain under-represented in comparative maternal vaccine safety research. There has been poor uptake of GAIA case definitions. A lack of harmonisation and standardisation persists limiting comparability of the generated safety data.
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Affiliation(s)
- Hannah G Davies
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
- MRC, UVRI & LSHTM Uganda Research Centre, Entebbe, Uganda
- Makerere University John Hopkins Research Unit, Kampala, Uganda
| | - Emma V Thorley
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Rossul Al-Bahadili
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Natalina Sutton
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Jessica Burt
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Lauren Hookham
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Kostas Karampatsas
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | | | - Flor Muñoz
- Paediatric Infectious Diseases Department, Baylor College of Medicine, Houston, TX, USA
| | - Clare L Cutland
- Wits African Leadership in Vaccinology Expertise (Wits-Alive), School of Pathology, Faculty of Health Science, University of the Witwatersrand, Johannesburg, South Africa
| | - Saad Omer
- O’Donnell School of Public Health, UT Southwestern Medical Center, Texas, USA
| | - Kirsty Le Doare
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
- Makerere University John Hopkins Research Unit, Kampala, Uganda
- World Health Organization, Geneva, Switzerland
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Águila R, Muñoz F, Oyarzún A, Coda S, Carreño H, Gana G, Viacava A, Rojas JT. [Anterior shoulder instability with Hill-Sachs on-track. Bankart or Bankart-remplissage?]. Acta Ortop Mex 2023; 37:2-8. [PMID: 37857390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
INTRODUCTION in patients with anterior glenohumeral (GH) instability together with an off-track or engaging Hill-Sachs (HS) defect, Bankart-remplissage (B-R) surgery reduces the recurrence rate when compared to Bankart (B) surgery alone. There is controversy regarding whether the recurrence rate also decreases in patients with on-track or non-engaging Hill-Sachs defects. OBJECTIVE to compare the recurrence rate and clinical evolution of patients with anterior glenohumeral instability with 'on-track' Hill-Sachs defect treated with either B or B-R surgery. MATERIAL AND METHODS non-randomized, retrospective, single-center cohort study of patients with anterior glenohumeral instability and on-track Hill-Sachs defect, operated between January 2010 and December 2018. Patients operated with B versus B-R were compared. Recurrence, complications and re-operation were recorded. In addition, VAS, SSV, WOSI and qDASH scores were obtained and compared in both groups. RESULTS of the 105 patients who met the inclusion criteria, 78 (74.3%) patients had a complete follow-up (52 B and 26 B-R, 4.3 years median follow-up). There was a higher recurrence rate in group B compared to B-R, with this difference not reaching statistical significance (17.3% vs 7.7%, p = 0.21). There were no significant differences in residual pain, feeling of instability, complications or VAS, qDASH, SSV or WOSI scores between both groups. In the subgroup analysis, patients who practiced contact sports and were operated with B showed higher recurrence rates (24.1% vs 0%, p = 0.08) and complications (41.4% vs 18.2%, p = 0.16) when compared to B + R, although these differences were not significant. CONCLUSION there were no significant differences in recurrence rates and functional evolution between patients with anterior glenohumeral instability operated with B or B-R surgery. Comparative, prospective studies should be performed to establish definitive recommendations.
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Affiliation(s)
- R Águila
- Clínica Santa María, Santiago de Chile, Chile
| | - F Muñoz
- Clínica Santa María, Santiago de Chile, Chile
- Hospital San Borja Arriaran. Chile
| | | | - S Coda
- Clínica Santa María, Santiago de Chile, Chile
| | - H Carreño
- Clínica Santa María, Santiago de Chile, Chile
| | - G Gana
- Clínica Santa María, Santiago de Chile, Chile
- Hospital San Borja Arriaran. Chile
| | - A Viacava
- Clínica Santa María, Santiago de Chile, Chile
| | - J T Rojas
- Clínica Santa María, Santiago de Chile, Chile
- Hospital San José. Chile
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García-Arnáez I, Romero-Gavilán F, Cerqueira A, Elortza F, Azkargorta M, Muñoz F, Mata M, de Llano JM, Suay J, Gurruchaga M, Goñi I. Correlation between biological responses in vitro and in vivo to Ca-doped sol-gel coatings assessed using proteomic analysis. Colloids Surf B Biointerfaces 2022; 220:112962. [DOI: 10.1016/j.colsurfb.2022.112962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/10/2022] [Accepted: 10/20/2022] [Indexed: 11/13/2022]
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Arriola CS, Li DK, Muñoz F, Daugherty M, Doughty-Skierski C, Ellington S, Ferber J, Ferguson N, Greenberg M, Hadden L, Henderson JT, Irving SA, Juergens M, Kancharla V, Naleway AL, Newes-Adeyi G, Nicholson E, Odouli R, Reichle L, Sanyang M, Dawood FS. Factors Associated with Hospitalization with Symptomatic COVID-19 Illness Among Pregnant Individuals: A Multi-Center Retrospective Cohort Study. Open Forum Infect Dis 2022. [PMCID: PMC9278221 DOI: 10.1093/ofid/ofac308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Pregnant individuals are at increased risk of COVID-19 hospitalization and death, and primary and booster COVID-19 vaccination is recommended for this population. Methods Among a cohort of pregnant individuals who received prenatal care at three healthcare systems in the United States, we estimated the cumulative incidence of hospitalization with symptomatic COVID-19 illness. We also identified factors associated with COVID-19 hospitalization using a multivariable Cox proportional-hazards model with pregnancy weeks as the timescale and a time-varying adjustor that accounted for SARS-CoV-2 circulation; model covariates included site, age, race, ethnicity, insurance status, pre-pregnancy weight status, and selected underlying medical conditions. Data were collected primarily through medical record extraction. Results Among 19,456 pregnant individuals with an estimated due date March 1, 2020-February 28, 2021, 75 (0.4%) were hospitalized with symptomatic COVID-19. Factors associated with hospitalization for symptomatic COVID-19 were Hispanic ethnicity (aHR: 2.7; 95% CI: 1.3,5.5), native Hawaiian or Pacific Islander race (aHR: 12; 95% CI: 3.2,45.5), age <25 years (aHR: 3.1; 95% CI: 1.3,7.6), pre-pregnancy obesity (aHR: 2.1; 95% CI: 1.1,3.9), diagnosis of a metabolic disorder (aHR: 2.2; 95% CI: 1.2,3.8), lung disease excluding asthma (aHR: 49; 95% CI: 28,84) and cardiovascular disease (aHR: 2.6; 95% CI: 1.5,4.7). Conclusion Although hospitalization with symptomatic COVID-19 was uncommon, pregnant individuals should be aware of risk factors associated with severe illness when considering COVID-19 vaccination.
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Affiliation(s)
| | - De Kun Li
- Kaiser Permanente Northern California , Oakland, California , USA
| | - Flor Muñoz
- Baylor College of Medicine , Houston, Texas , USA
| | | | | | - Sascha Ellington
- Centers for Disease Control and Prevention , Atlanta, Georgia , USA
| | - Jeannette Ferber
- Kaiser Permanente Northern California , Oakland, California , USA
| | | | - Mara Greenberg
- Kaiser Permanente Northern California , Oakland, California , USA
| | | | - Jillian T Henderson
- Center for Health Research , Kaiser Permanente Northwest, Portland, Oregon , USA
| | - Stephanie A Irving
- Center for Health Research , Kaiser Permanente Northwest, Portland, Oregon , USA
| | | | | | - Allison L Naleway
- Center for Health Research , Kaiser Permanente Northwest, Portland, Oregon , USA
| | | | | | - Roxana Odouli
- Centers for Disease Control and Prevention , Atlanta, Georgia , USA
| | | | - Mo Sanyang
- Baylor College of Medicine , Houston, Texas , USA
| | - Fatimah S Dawood
- Centers for Disease Control and Prevention , Atlanta, Georgia , USA
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Maio M, Amonkar M, Norquist J, Ascierto P, Manzyuk L, Motola-Kuba D, Penel N, Cassier P, Bariani G, De Jesus Acosta A, Doi T, Muñoz F, Miller W, Oh D, Gottfried M, Wang R, Norwood K, Marabelle A. SO-8 Health-related quality of life in patients treated with pembrolizumab for microsatellite instability-high/mismatch repair deficient advanced solid tumors: Results from the KEYNOTE-158 study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Garfein RS, Liu L, Cuevas-Mota J, Collins K, Catanzaro DG, Muñoz F, Moser K, Chuck C, Higashi J, Bulterys MA, Raab F, Rios P. Evaluation of recorded video-observed therapy for anti-tuberculosis treatment. Int J Tuberc Lung Dis 2021; 24:520-525. [PMID: 32398202 DOI: 10.5588/ijtld.19.0456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Asynchronous video directly observed therapy (VDOT) may reduce tuberculosis (TB) program costs and the burden on patients. We compared VDOT performance across three cities in the United States, each of which have TB incidence rates above the national average.METHODS: Patients aged ≥18 years who are currently receiving directly observed anti-TB treatment were invited to use VDOT for monitoring treatment. Pre- and post-treatment interviews and medical records were used to assess site differences in treatment adherence and patient characteristics and perceptions.RESULTS: Participants were enrolled in New York City, NY (n = 48), San Diego, CA (n = 52) and San Francisco, CA, USA (n = 49). Overall, the mean age was 41 years (range 18-87); 59% were male; most were Asian (45%) or Hispanic/Latino (30%); and 77% were foreign-born. The median fraction of expected doses observed (FEDO) was 88% (IQR 76-96). At follow-up, 97% thought VDOT was "very or somewhat easy to use" and 95% would recommend VDOT to other TB patients. Age, race/ethnicity, annual income, and country of birth differed by city (P < 0.05), but FEDO and VDOT perceptions did not.CONCLUSIONS: TB programs in three large US cities observed a high FEDO using VDOT while minimizing staff time and travel. Similar findings across sites support VDOT adoption by other large, urban TB programs.
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Affiliation(s)
- R S Garfein
- Division of Epidemiology, School of Medicine, University of California, San Diego, CA
| | - L Liu
- Division of Biostatistics and Bioinformatics, School of Medicine, University of California, San Diego, CA
| | - J Cuevas-Mota
- Division of Epidemiology, School of Medicine, University of California, San Diego, CA
| | - K Collins
- Division of Epidemiology, School of Medicine, University of California, San Diego, CA
| | - D G Catanzaro
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR
| | - F Muñoz
- Division of Epidemiology, School of Medicine, University of California, San Diego, CA
| | - K Moser
- San Diego County Health and Human Services Agency, San Diego, CA
| | - C Chuck
- Bureau of Tuberculosis Control, New York City Department of Health and Mental Hygiene, Queens, NY
| | - J Higashi
- San Francisco Department of Public Health, San Francisco, CA
| | - M A Bulterys
- Department of Epidemiology, University of Washington School of Public Health, Seattle, WA
| | - F Raab
- Qualcomm Institute, Calit2, San Diego Division, University of California, San Diego, CA, USA
| | - P Rios
- Qualcomm Institute, Calit2, San Diego Division, University of California, San Diego, CA, USA
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Di Raimondo R, Sanz-Esporrin J, Martin IS, Vignoletti F, Nuñez J, Muñoz F, Haugen HJ, Sanz M. Hard tissue volumetric and soft tissue contour linear changes at implants with different surface characteristics after experimentally induced peri-implantitis: an experimental in vivo investigation. Clin Oral Investig 2021; 25:3905-3918. [PMID: 33415377 DOI: 10.1007/s00784-020-03720-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/27/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the hard tissue volumetric and soft tissue contour linear changes in implants with two different implant surface characteristics after a ligature-induced peri-implantitis. MATERIAL AND METHODS In eight beagle dogs, implants with the same size and diameter but distinct surface characteristics were placed in the healed mandibular sites. Test implants had an external monolayer of multi-phosphonate molecules (B+), while control implants were identical but without the phosphonate-rich surface. Once the implants were osseointegrated, oral hygiene was interrupted and peri-implantitis was induced by placing subgingival ligatures. After 16 weeks, the ligatures were removed and peri-implantitis progressed spontaneously. Bone to implant contact (BIC) and bone loss (BL) were assessed three-dimensionally with Micro-Ct (μCT). Dental casts were optically scanned and the obtained digitalized standard tessellation language (STL) images were used to assess the soft tissue vertical and horizontal contour linear changes. RESULTS Reduction of the three-dimensional BIC percentage during the induction and progression phases of the experimental peri-implantitis was similar for both the experimental and control implants, without statistically significant differences between them. Soft tissue analysis revealed for both implant groups an increase in horizontal dimension after the induction of peri-implantitis, followed by a decrease after the spontaneous progression period. In the vertical dimension, a soft tissue dehiscence was observed in both groups, being more pronounced at the buccal aspect. CONCLUSIONS The added phosphonate-rich surface did not provide a more resistant environment against experimental peri-implantitis, when assessed by the changes in bone volume and soft tissue contours. CLINICAL RELEVANCE Ligature-induced peri-implantitis is a validated model to study the tissue changes occurring during peri-implantitis. It was hypothesized that a stronger osseointegration mediated by the chemical bond of a phosphonate-rich implant surface would develop an environment more resistant to the inflammatory changes occurring after experimental peri-implantitis. These results, however, indicate that the hard and soft tissue destructive changes occurring at both the induction and progression phases of experimental peri-implantitis were not influenced by the quality of osseointegration.
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Affiliation(s)
- R Di Raimondo
- Graduate Clinic of Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - Javier Sanz-Esporrin
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense, Madrid, Spain.
- Facultad de Odontología, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n (Ciudad Universitaria), 28040, Madrid, Spain.
| | - I Sanz Martin
- Graduate Clinic of Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - F Vignoletti
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense, Madrid, Spain
| | - J Nuñez
- Graduate Clinic of Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - F Muñoz
- Department of Veterinary Clinical Sciences, University of Santiago de Compostela, Lugo, Spain
| | - H J Haugen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Oslo, Norway
| | - M Sanz
- Graduate Clinic of Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense, Madrid, Spain
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Ripollés T, Muñoz F, Martínez-Pérez M, de Miguel E, Poza Cordón J, de la Heras Páez de la Cadena B. Usefulness of intestinal ultrasound in inflammatory bowel disease. Radiología (English Edition) 2021. [DOI: 10.1016/j.rxeng.2020.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Ripollés T, Muñoz F, Martínez-Pérez MJ, de Miguel E, Cordón JP, de la Heras Páez de la Cadena B. Usefulness of intestinal ultrasound in inflammatory bowel disease. Radiologia (Engl Ed) 2020; 63:89-102. [PMID: 33189372 DOI: 10.1016/j.rx.2020.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/30/2020] [Accepted: 10/02/2020] [Indexed: 02/07/2023]
Abstract
Imaging techniques play a fundamental role in the initial diagnosis and follow-up of inflammatory bowel disease. Intestinal ultrasound has high sensitivity and specificity in patients with suspected Crohn's disease and in the detection of inflammatory activity. This technique enables the early diagnosis of intra-abdominal complications such as stenosis, fistulas, and abscesses. It has also proven useful in monitoring the response to treatment and in detecting postsurgical recurrence. Technical improvements in ultrasound scanners, technological advances such as ultrasound contrast agents and elastography, and above all increased experience have increased the role of ultrasound in the evaluation of the gastrointestinal tract. The features that make ultrasound especially attractive include its wide availability, its noninvasiveness and lack of ionizing radiation, its low cost, and its good reproducibility, which is important because it is easy to repeat the study and the study is well tolerated during follow-up. This review summarizes the role of intestinal ultrasound in the detection and follow-up of inflammatory bowel disease.
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Affiliation(s)
- T Ripollés
- Servicio de Radiología, Hospital Dr. Peset, Valencia, España.
| | - F Muñoz
- Servicio de Digestivo, Complejo Asistencial Universitario de Salamanca, Salamanca, España
| | | | - E de Miguel
- Servicio de Radiología, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - J Poza Cordón
- Servicio de Digestivo, Hospital Universitario La Paz, Madrid, España
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Seidel JV, Castañeda-Uribe OA, Arevalo S, Muñoz F, Proud W, Avila A. Relative permittivity estimation of wheat starch: A critical property for understanding electrostatic hazards. J Hazard Mater 2019; 368:228-233. [PMID: 30682542 DOI: 10.1016/j.jhazmat.2019.01.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/12/2018] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
Wheat starch is a widely used material in the food, pharmaceutical and entertainment industry not considered hazard but recently associated to dust explosions during processing and handling. How an insulating starch grain is charged and how its ability to be polarized is affected by environmental conditions such as temperature, humidity and frequency? are fundamental questions that must be explored in order to understand the dust explosion phenomena. Here we investigate the dependence of temperature, humidity and low-frequency on the relative permittivity of wheat starch. We characterized starch at the micro and macro scales using atomic force microscopy-based techniques and capacitive planar sensor-based measurements respectively. The results show high values of permittivity (˜80) at the microscale (single starch grains) compared to the low values (10-20) at the macroscale (20 mg of wheat starch). The differences are attributed to the Maxwell-Wagner-Sillars interfacial polarization process on individual grains and potential charge exchange between grains. Permittivity is a critical property to investigate starch electrostatic hazards.
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Affiliation(s)
- J V Seidel
- Imperial College London, London, SW7 2BP, United Kingdom
| | - O A Castañeda-Uribe
- Vicerrectoría de Investigaciones, Grupo de Investigación en Ingeniería Biomédica (GIIB), Universidad Manuela Beltrán, Bogotá, DC 110231, Colombia
| | - S Arevalo
- Department of Electrical and Electronic Engineering and Centro de Microelectrónica (CMUA), Universidad de los Andes, Bogotá, 111711, Colombia
| | - F Muñoz
- Department of Chemical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - W Proud
- Institute of Shock Physics, Imperial College London, London, SW7 2BP, United Kingdom
| | - A Avila
- Department of Electrical and Electronic Engineering and Centro de Microelectrónica (CMUA), Universidad de los Andes, Bogotá, 111711, Colombia.
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Romo S, Sebastián O, Guerrero F, Romero R, Muñoz F, Parlange A, Kjelland ME. 130 In vitro embryo production using frozen semen from cloned and non-cloned Bos indicus bulls. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab130] [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
Reproductive biotechnology has continued to evolve rapidly, allowing the development of techniques to increase reproductive efficiency and contribute to the genetic improvement of cattle. Some of these techniques include the in vitro maturation and IVF of oocytes, sperm sexing and cloning. These modern assisted reproductive techniques can help produce offspring of desired genetic characteristics and of a pre-determined sex. However, studies of the bull’s contribution to in vitro reproductive performance are scarce in the Brahman breed. The aim of this study was to compare oocyte maturation and embryo production in vitro using frozen semen from 5 Brahman bulls (Bos indicus), cloned (n=1) and non-cloned (n=4), with characteristics and genetics of high commercial value. The age of the bulls at the time of semen collection and cryopreservation ranged from 2 to 7 years. The oocytes were obtained on 2 different dates (45 days between collections) using pooled oocytes collected by ovum pickup at random stages of the oestrous cycle, from a total of 15 Brahman donor cows. Oocytes were transported to a laboratory in the State of Chiapas, Mexico (Genemex Internacional). The oocytes were cultured in maturation medium for 24h. For IVF, conventional semen was used from one bull (B1) and his clone (B12), the grandson of B1 (B2), and 2 non-related bulls (B3 and B4). The gametes were co-incubated for 22h and afterward placed in medium for embryo development and cultured for 7 days in a humid atmosphere with 5% CO2 in air. Of the matured oocytes, 36/43 (84%), 16/32 (50%), 101/143 (70%), 46/67 (68%) and 53/65 (81%) were fertilized using semen from B1, B12, B2, B3 and B4, respectively. Of the fertilized oocytes, 15/30 (50%), 8/16 (50%), 45/101 (44%), 21/46 (45%) and 18/53 (34%) resulted in transferrable embryos, corresponding to semen from the same bulls, respectively. This would appear to be the first scientific report in Mexico about the use of semen from a cloned bull for in vitro embryo production. In IVF, similar results were observed between B1 and a non-related bull (B4). Similar results in transferrable embryos were observed between B1 and B12 but also similar to a related bull (B3) and a non-related bull (B4). A Fisher’s exact test of the IVF results comparing B1 and B12 found a significantly (P<0.05) higher number of fertilized oocytes for B1. However, a significant difference was not found (P>0.05) concerning the number of transferrable embryos produced by these two bulls. In conclusion, the Brahman bulls in this study differ in their contribution to IVF and embryo production. Further studies are required to determine the factors responsible for such effects, e.g. age differences or clone versus non-clone mosaicism. Results from this research contribute to the study and development of assisted reproductive techniques for increasing in vitro production efficiency in Zebu cattle.
We thank the Rosales family, from El Herradero Ranch, in the State of Campeche, Mexico, for allowing the use of their cattle for this project.
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Sebastián O, Guerrero F, Romero R, Muñoz F, Parlange A, Romo S, Kjelland ME. 87 Assessment of pregnancy success following transfer of embryos produced in vitro using frozen - thawed semen from cloned and noncloned Bos indicus bulls. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab87] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Assisted reproductive technologies (ART) continue to develop rapidly, allowing for the development of techniques to increase reproductive efficiency and contribute to the genetic improvement of cattle. Some of these techniques include in vitro production (IVP) of embryos and embryo transfer. These modern ART can help produce offspring with highly desirable characteristics. However, there is a lack of information on the percentage of pregnancies obtained following transfer (P/ET) of IVP embryos derived using semen of cloned Bos indicus bulls. The objective of this study was to compare embryo transfer results of IVP embryos created using frozen-thawed semen from 5 Brahman bulls (Bos indicus) with characteristics and genetics of high commercial value. The embryos were produced on two different dates, 45 days apart, using pooled oocytes harvested by ovum pickup from 15 Brahman cows at random stages of the oestrous cycle. Procedures for IVP were performed in a commercial laboratory (Genemex Internacional) in the state of Chiapas, Mexico. For IVF, conventional semen was used from 1 bull (B1) and his clone (B12), the grandson of B1 (B2), and from 2 nonrelated bulls (B3 and B4). A total of 100 embryos were transferred nonsurgically by a private practitioner on a ranch in the state of Campeche, Mexico. The recipients were commercial crossbred cows synchronized using a FTET program. On Day 0, recipients received an intravaginal device containing 1.9g of progesterone (CIDR) and 2mg of oestradiol benzoate IM. On Day 8, the CIDR was removed and cows received 25mg of dinoprost tromethamine, 200IU of eCG, and 0.5mg of oestradiol cypionate IM. Embryos were transferred on Day 17. The overall P/ET was 42% (42/100). The P/ET for IVP embryos produced with semen from bulls B1, B12, B2, B3, and B4 was 3/15 (20%), 3/8 (37%), 23/42 (55%), 8/20 (40%), and 5/15 (33%), respectively. The P/ET was numerically greater for embryos produced using semen from the cloned bull (37%; B12) compared to embryos produced using semen from the original noncloned bull (20%; B1), although this difference was not statistically significant (P=0.62, Fisher’s exact test). There was a significant difference (P<0.05) for the P/ET obtained with embryos produced using semen from bulls B1 and B2, but results for the other bulls were not significantly different. As far as we know, this is the first scientific report in Mexico concerning the use and comparison of semen from cloned and noncloned bulls for the production and transfer of bovine IVP embryos. In general, a wide numerical range of P/ET using the different bulls was observed (i.e. 20-55%). In this preliminary study, there was no impact of using frozen-thawed semen from a cloned bull for IVP on P/ET. The results from this research can contribute to the study and development of ART to improve P/ET obtained using Zebu IVP embryos. However, further research with a larger numbers of animals is required to confirm whether using semen from cloned and noncloned Bos indicus bulls for IVP impacts pregnancy success following embryo transfer.
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Dias A, Muñoz F, Alvarez A, Moreno-Zárate P, Atienzar J, Urbieta A, Fernandez P, Pardo M, Serna R, Solis J. Femtosecond laser writing of photonic devices in borate glasses compositionally designed to be laser writable. Opt Lett 2018; 43:2523-2526. [PMID: 29856420 DOI: 10.1364/ol.43.002523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
The design and performance of borate glass samples compositionally pre-designed to be femtosecond laser writable via laser-induced ion migration is reported in this Letter. It is demonstrated that borate glasses modified on purpose with small amounts of La2O3 and Na2O can be straightforwardly used to produce high-index contrast (Δn) waveguides by femtosecond-laser-assisted ion migration. The positive Δn of the waveguides is caused by the local enrichment of La2O3 in the guiding region with a slope of 8·10-3(mol.%)-1. The value of this is consistent with numerical aperture measurements of the waveguides and local compositional measurements at the guiding region performed by energy-dispersive x-ray micro-analysis. The maximum achievable Δn values can be controlled through the initial La2O3 content of the glass. Maximum Δn values >10-2 for samples with just 5.5 mol. % of La2O3 have been produced. This compositional design approach could be potentially used to produce highly efficient femtosecond laser writeable glasses in other glass families.
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14
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Echeverri F, Quijano J, Muñoz F, Layos E. Estudio de una fitoalexina de <i>Borojoa cuatrecasas</i> (Rubiaceae). Actual Biol 2017. [DOI: 10.17533/udea.acbi.330356] [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] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Del fruto de Borojoa patinoi Cuatrecasas (Rubiaceae) se indujo y aisló una Fitoalexina que demostró propiedades antifúngicas contra el hongo Penicillium frequentans. Se propone una estructura para dicha Fitoalexina.
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Seguel M, Muñoz F, Paredes E, Navarrete MJ, Gottdenker NL. Pathological Findings in Wild Rats (Rattus rattus) Captured at Guafo Island, Northern Chilean Patagonia. J Comp Pathol 2017; 157:163-173. [PMID: 28942299 DOI: 10.1016/j.jcpa.2017.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 05/05/2017] [Revised: 07/14/2017] [Accepted: 07/23/2017] [Indexed: 10/19/2022]
Abstract
The black rat (Rattus rattus) is an invasive species and potential reservoir of significant pathogens of man, domestic animals and wildlife. During the 2012-2014 austral summers, 201 black rats were captured and examined on the uninhabited Guafo Island, in Northern Chilean Patagonia (43.593029°S, 74.713481°W). The mite Ornithonyssus bacoti caused lymphoplasmacytic and eosinophilic dermatitis in all infected rats (105/210, 52%), but no skin lesions were observed in rats infected with Nosopsyllus spp. and Plocopsylla spp. fleas. Eighty-eight rats (44%) had mild lymphoplasmacytic and eosinophilic enterocolitis and 61 of these rats were infected with the nematode Heterakis spumosa. In the liver, 63 animals (31%) had areas of necrosis with histiocytic and eosinophilic inflammation associated with multiple Calodium hepaticum eggs, and in 15 cases there was co-infection with several Taenia taeniaeformis strobilocerci. Mild interstitial lymphoplasmacytic sialadenitis with intranuclear inclusion bodies, suggesting cytomegalovirus infection, was observed in 28 rats (15%). In the lung, alveolar histiocytosis (69 rats, 34%) and perivascular lymphocytic infiltrates (46 rats, 23%) were the most common findings. There was mild to moderate lymphoplasmacytic interstitial nephritis in 52 rats (26%) and in 15% of these cases Leptospira spp. antigen was detected in the distal renal tubules. Some of the diseases of black rats on Guafo Island are likely to play a role in rat population dynamics. The endemic Guafo Island long-clawed mole mouse (Geoxus lafkenche), sea lions and fur seals may be at risk for infection by some of these rat pathogens.
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Affiliation(s)
- M Seguel
- Department of Pathology, College of Veterinary Medicine, The University of Georgia, 501 DW Brooks Dr., Athens, Georgia, USA.
| | - F Muñoz
- Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Isla Teja s/n, Valdivia, Chile
| | - E Paredes
- Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Isla Teja s/n, Valdivia, Chile
| | - M J Navarrete
- Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Isla Teja s/n, Valdivia, Chile
| | - N L Gottdenker
- Department of Pathology, College of Veterinary Medicine, The University of Georgia, 501 DW Brooks Dr., Athens, Georgia, USA
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Sastre S, Casasnovas R, Muñoz F, Frau J. Isodesmic reaction for accurate theoretical pKa calculations of amino acids and peptides. Phys Chem Chem Phys 2017; 18:11202-12. [PMID: 27052591 DOI: 10.1039/c5cp07053h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Theoretical and quantitative prediction of pKa values at low computational cost is a current challenge in computational chemistry. We report that the isodesmic reaction scheme provides semi-quantitative predictions (i.e. mean absolute errors of 0.5-1.0 pKa unit) for the pKa1 (α-carboxyl), pKa2 (α-amino) and pKa3 (sidechain groups) of a broad set of amino acids and peptides. This method fills the gaps of thermodynamic cycles for the computational pKa calculation of molecules that are unstable in the gas phase or undergo proton transfer reactions or large conformational changes from solution to the gas phase. We also report the key criteria to choose a reference species to make accurate predictions. This method is computationally inexpensive and makes use of standard density functional theory (DFT) and continuum solvent models. It is also conceptually simple and easy to use for researchers not specialized in theoretical chemistry methods.
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Affiliation(s)
- S Sastre
- Department de Química, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain.
| | - R Casasnovas
- Institute of Neuroscience and Medicine INM-9, Institute for Advanced Simulations IAS-5. Computational Biomedicine, Forschungszentrum Jülich 52428, Germany
| | - F Muñoz
- Department de Química, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain. and Instituto de Investigación Sanitaria de Palma (IdISPa), 07010, Palma, Spain
| | - J Frau
- Department de Química, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain. and Instituto de Investigación Sanitaria de Palma (IdISPa), 07010, Palma, Spain
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Vilanova B, Fernández D, Casasnovas R, Pomar AM, Alvarez-Idaboy JR, Hernández-Haro N, Grand A, Adrover M, Donoso J, Frau J, Muñoz F, Ortega-Castro J. Formation mechanism of glyoxal-DNA adduct, a DNA cross-link precursor. Int J Biol Macromol 2017; 98:664-675. [PMID: 28192135 DOI: 10.1016/j.ijbiomac.2017.01.140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 01/08/2023]
Abstract
DNA nucleobases undergo non-enzymatic glycation to nucleobase adducts which can play important roles in vivo. In this work, we conducted a comprehensive experimental and theoretical kinetic study of the mechanisms of formation of glyoxal-guanine adducts over a wide pH range in order to elucidate the molecular basis for the glycation process. Also, we performed molecular dynamics simulations to investigate how open or cyclic glyoxal-guanine adducts can cause structural changes in an oligonucleotide model. A thermodynamic study of other glycating agents including methylglyoxal, acrolein, crotonaldehyde, 4-hydroxynonenal and 3-deoxyglucosone revealed that, at neutral pH, cyclic adducts were more stable than open adducts; at basic pH, however, the open adducts of 3-deoxyglucosone, methylglyoxal and glyoxal were more stable than their cyclic counterparts. This result can be ascribed to the ability of the adducts to cross-link DNA. The new insights may contribute to improve our understanding of the connection between glycation and DNA cross-linking.
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Affiliation(s)
- B Vilanova
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain.
| | - D Fernández
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - R Casasnovas
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - A M Pomar
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - J R Alvarez-Idaboy
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México D.F. 04510, Mexico
| | | | - A Grand
- Univ. Greboble Alpes, INAC-SCIB, F-38000 Grenoble, France; CEA, INAC-SyMMES, F-38000 Grenoble, France; Universidad Autónoma de Chile, Carlos Antúnez 1920, 7500566, Providencia, Santiago de, Chile
| | - M Adrover
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - J Donoso
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - J Frau
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - F Muñoz
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
| | - J Ortega-Castro
- Department de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain; Instituto de Investigación Sanitaria de Palma (IdISPA), 07010 Palma de Mallorca, Spain
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Seguel M, Muñoz F, Navarrete MJ, Paredes E, Howerth E, Gottdenker N. Hookworm Infection in South American Fur Seal ( Arctocephalus australis) Pups. Vet Pathol 2016; 54:288-297. [PMID: 28207376 DOI: 10.1177/0300985816677151] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tissues of South American fur seal pups naturally infected with hookworms ( Uncinaria sp) were examined. Hookworm infection was found in nearly all pups examined (132/140, 94%), and hookworm enteritis with secondary bacteremia was considered the cause of death in 46 (35%) pups. Common findings in these pups included severe hemorrhagic enteritis and numerous (mean intensity = 761.8) hookworms in the jejunum. Hookworms were recovered from the abdominal cavity in 12 of 55 pups (22%) examined through peritoneal wash; these pups had an average of 1343.3 intestinal hookworms and marked fibrinohemorrhagic peritonitis. In all pups that died as a consequence of hookworm infection, the intestinal villi were short, blunt, and fused, and there were variable numbers of free and intrahistiocytic gram-negative bacteria in submucosal hookworm feeding tracks, mesenteric lymph nodes, spleen, blood vessels, and liver sinusoids. Pups that died of causes unrelated to the hookworm infection (trauma) had hookworm feeding tracks confined to the apical portions of the mucosa, and moderate to marked catarrhal eosinophilic enteritis. The number of hookworms was negatively correlated with intestinal villous length and number of leukocytes in the intestine. Pups with hookworm peritoneal penetration had nematodes with little or no blood in the hookworm intestine, suggesting that lack of food for the nematode could be associated with peritoneal penetration. Findings suggest that the initial burden of larval infection, the level of the host tissue response, or a combination determine the number of nematodes in the intestine, the severity of hookworm tissue damage, and pup mortality.
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Affiliation(s)
- M Seguel
- 1 Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA
| | - F Muñoz
- 2 Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - M J Navarrete
- 2 Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - E Paredes
- 2 Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - E Howerth
- 1 Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA
| | - N Gottdenker
- 1 Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA
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Berrocal-Izquierdo N, Muñoz F, Bosch J, Molet J. Primary central nervous system lymphoma mimicking cerebellopontine angle tumour. Neurologia 2016; 33:614-616. [PMID: 27452624 DOI: 10.1016/j.nrl.2016.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/03/2016] [Accepted: 06/09/2016] [Indexed: 11/28/2022] Open
Affiliation(s)
- N Berrocal-Izquierdo
- Servicio de Neurología, SCIAS, Hospital de Barcelona, Barcelona, España; Servicio de Neurología, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, España.
| | - F Muñoz
- Servicio de Neurocirugía, SCIAS, Hospital de Barcelona, Barcelona, España; Servicio de Neurocirugía, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - J Bosch
- Servicio de Neurología, SCIAS, Hospital de Barcelona, Barcelona, España
| | - J Molet
- Servicio de Neurocirugía, SCIAS, Hospital de Barcelona, Barcelona, España; Servicio de Neurocirugía, Hospital de la Santa Creu i Sant Pau, Barcelona, España
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López Peña M, Muñoz F, Alemañ N, González A, Pereira JL, Nieto JM. Hemangiomatosis Associated with Osteolysis of the Mandible in a Dog Resembling Gorham-Stout Disease in Humans. Vet Pathol 2016; 42:489-91. [PMID: 16006608 DOI: 10.1354/vp.42-4-489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A 6-month-old female German Shepherd Dog died as a result of profuse oral bleeding. At postmortem examination, the oral cavity showed visible roots of the right mandibular fourth premolar and first molar teeth and, in addition, they were very mobile and compressible. Radiographs showed a generalized radiolucency in the body of the right mandible, with evidence of resorption of the affected alveolar bone. Histologically, the lesion of the right mandible was characterized by the lysis of bony structures and a non-malignant proliferation of blood-filled vascular spaces lined by a single layer of well-differentiated endothelial cells. The clinical, radiographic, and histologic presentation of this dog is consistent with that associated with Gorham-Stout disease, a rare bone disorder in humans.
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Affiliation(s)
- M López Peña
- Anatomía Patológica, Facultad de Veterinaria, Campus Universitario, Lugo E-27002, Spain.
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Garfein RS, Collins K, Muñoz F, Moser K, Cerecer-Callu P, Raab F, Rios P, Flick A, Zúñiga ML, Cuevas-Mota J, Liang K, Rangel G, Burgos JL, Rodwell TC, Patrick K. Feasibility of tuberculosis treatment monitoring by video directly observed therapy: a binational pilot study. Int J Tuberc Lung Dis 2016; 19:1057-64. [PMID: 26260824 DOI: 10.5588/ijtld.14.0923] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although directly observed therapy (DOT) is recommended worldwide for monitoring anti-tuberculosis treatment, transportation and personnel requirements limit its use. OBJECTIVE To evaluate the feasibility and acceptability of 'video DOT' (VDOT), which allows patients to record and transmit medication ingestion via videos watched remotely by health care providers to document adherence. METHODS We conducted a single-arm trial among tuberculosis (TB) patients in San Diego, California, USA, (n = 43) and Tijuana, Mexico (n = 9) to represent high- and low-resource settings. Pre-/post-treatment interviews assessed participant characteristics and experiences. Adherence was defined as the proportion of observed doses to expected doses. RESULTS The mean age was 37 years (range 18-86), 50% were male, and 88% were non-Caucasian. The mean duration of VDOT use was 5.5 months (range 1-11). Adherence was similar in San Diego (93%) and Tijuana (96%). Compared to time on in-person DOT, 92% preferred VDOT, 81% thought VDOT was more confidential, 89% never/rarely had problems recording videos, and 100% would recommend VDOT to others. Seven (13%) participants were returned to in-person DOT and six (12%) additional participants had their phones lost, broken or stolen. CONCLUSIONS VDOT was feasible and acceptable, with high adherence in both high- and low-resource settings. Efficacy and cost-effectiveness studies are needed.
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Affiliation(s)
- R S Garfein
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - K Collins
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - F Muñoz
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - K Moser
- San Diego County Health and Human Services Agency, San Diego, California, USA
| | - P Cerecer-Callu
- Instituto de Servicios de Salud, Tijuana, Baja California, México
| | - F Raab
- Department of Preventive Medicine and Public Health, University of California, San Diego, La Jolla, USA
| | - P Rios
- Qualcomm Institute, University of California, San Diego, La Jolla, USA
| | - A Flick
- Qualcomm Institute, University of California, San Diego, La Jolla, USA
| | - M L Zúñiga
- School of Social Work, San Diego State University, San Diego, California, USA
| | - J Cuevas-Mota
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - K Liang
- San Diego County Health and Human Services Agency, San Diego, California, USA
| | - G Rangel
- Comision de Salud Fronteriza, Sección México-Secretaria de Salud, Tijuana, Baja California, México
| | - J L Burgos
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - T C Rodwell
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, USA
| | - K Patrick
- Department of Preventive Medicine and Public Health, University of California, San Diego, La Jolla, USA; Qualcomm Institute, University of California, San Diego, La Jolla, USA
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Flaugher B, Diehl HT, Honscheid K, Abbott TMC, Alvarez O, Angstadt R, Annis JT, Antonik M, Ballester O, Beaufore L, Bernstein GM, Bernstein RA, Bigelow B, Bonati M, Boprie D, Brooks D, Buckley-Geer EJ, Campa J, Cardiel-Sas L, Castander FJ, Castilla J, Cease H, Cela-Ruiz JM, Chappa S, Chi E, Cooper C, da Costa LN, Dede E, Derylo G, DePoy DL, de Vicente J, Doel P, Drlica-Wagner A, Eiting J, Elliott AE, Emes J, Estrada J, Fausti Neto A, Finley DA, Flores R, Frieman J, Gerdes D, Gladders MD, Gregory B, Gutierrez GR, Hao J, Holland SE, Holm S, Huffman D, Jackson C, James DJ, Jonas M, Karcher A, Karliner I, Kent S, Kessler R, Kozlovsky M, Kron RG, Kubik D, Kuehn K, Kuhlmann S, Kuk K, Lahav O, Lathrop A, Lee J, Levi ME, Lewis P, Li TS, Mandrichenko I, Marshall JL, Martinez G, Merritt KW, Miquel R, Muñoz F, Neilsen EH, Nichol RC, Nord B, Ogando R, Olsen J, Palaio N, Patton K, Peoples J, Plazas AA, Rauch J, Reil K, Rheault JP, Roe NA, Rogers H, Roodman A, Sanchez E, Scarpine V, Schindler RH, Schmidt R, Schmitt R, Schubnell M, Schultz K, Schurter P, Scott L, Serrano S, Shaw TM, Smith RC, Soares-Santos M, Stefanik A, Stuermer W, Suchyta E, Sypniewski A, Tarle G, Thaler J, Tighe R, Tran C, Tucker D, Walker AR, Wang G, Watson M, Weaverdyck C, Wester W, Woods R, Yanny B. THE DARK ENERGY CAMERA. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-6256/150/5/150] [Citation(s) in RCA: 580] [Impact Index Per Article: 64.4] [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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Álvarez-Cuenllas B, Díez-Rodríguez R, Vaquero L, Pisabarros C, Aparicio M, Rodríguez-Martín L, Muñoz F, Olcoz J, Jorquera F, Vivas S. Descriptive analysis of endoscopic findings in patients with a family history of colorectal cancer. Revista de Gastroenterología de México (English Edition) 2015. [DOI: 10.1016/j.rgmxen.2015.08.003] [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: 11/15/2022] Open
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Rodríguez Carballeira M, Espinosa G, Mejía J, Solans R, Larrañaga J, Castillo M, Rios R, Nieto J, Solanich X, Fonseca E, Muñoz F, Fraile G, Boldava R, Hurtado R. SAT0534 Thrombosis and Re-Thrombosis Manifestations in Patients with Behçet Disease. Descriptive Analysis from Regeb Cohort. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3894] [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: 11/03/2022]
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Solís-Calero C, Ortega-Castro J, Hernández-Laguna A, Frau J, Muñoz F. A DFT study of the carboxymethyl-phosphatidylethanolamine formation from glyoxal and phosphatidylethanolamine surface. Comparison with the formation of N(ε)-(carboxymethyl)lysine from glyoxal and l-lysine. Phys Chem Chem Phys 2015; 17:8210-22. [DOI: 10.1039/c4cp05360e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mechanisms of the generation of CML and CM-PE from the reactions between glyoxal and l-lysine, and glyoxal and phosphatidylethanolamine (PE) were studied using the DFT method.
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Affiliation(s)
- C. Solís-Calero
- Institut d’Investigació en Ciències de la Salut (IUNICS)
- Departament de Química
- Universitat de les Illes Balears
- E-07122 Palma de Mallorca
- Spain
| | - J. Ortega-Castro
- Institut d’Investigació en Ciències de la Salut (IUNICS)
- Departament de Química
- Universitat de les Illes Balears
- E-07122 Palma de Mallorca
- Spain
| | | | - J. Frau
- Institut d’Investigació en Ciències de la Salut (IUNICS)
- Departament de Química
- Universitat de les Illes Balears
- E-07122 Palma de Mallorca
- Spain
| | - F. Muñoz
- Institut d’Investigació en Ciències de la Salut (IUNICS)
- Departament de Química
- Universitat de les Illes Balears
- E-07122 Palma de Mallorca
- Spain
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Juarez A, Alcaide C, Muñoz F, Montes C. Severe bruxism in a patient suffering Nasu-Hakola disease for ten years. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.375] [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: 11/24/2022]
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Vázquez MA, Muñoz F, Donoso J, García Blanco F. Stability of Schiff bases of amino acids and pyridoxal-5'-phosphate. Amino Acids 2013; 3:81-94. [PMID: 24192991 DOI: 10.1007/bf00806010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/1991] [Accepted: 09/09/1991] [Indexed: 11/26/2022]
Abstract
Stability of Schiff bases from Pyridoxal-5'-phosphate andα- and nonα-amino acids and amines have been studied in a wide range of pH. Furthermore the transamination process for the PLP-serine Schiff base and the cyclization reaction of PLP-histidine Schiff base have also been studied.Results show that theα-position on carboxyl group of amino acids plays an important role on the mechanism of hydrolysis of imine bond. Absence of ionic groups in the surroundings of that bond seems to be an important fact of stability.In the transamination reaction, the rate-determining step is the isomerization of the Schiff base to ketoimine, since the rate constants for disappearance of Schiff base coincide with the rate constants for PMP formation. This process is catalyzed by the OH(-)/H2O system and the monoprotonated amino acid.
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Affiliation(s)
- M A Vázquez
- Departamento de Química, Facultat de Ciencies, Universitat de les Illes Balears, E-07071, Palma de Mallorca, Spain
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Cátedra B, Muñoz F, Cabello L. [Are domiciliary care patients receiving adequate thromboprophylaxis?]. Semergen 2013; 40:27-33. [PMID: 23774029 DOI: 10.1016/j.semerg.2013.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 02/14/2013] [Accepted: 03/13/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The study aims to determine the percentage of patients treated at home with an indication of prophylaxis of thromboembolic disease (TED) according to the PRETEMED guidelines and whether they receive such prophylaxis. MATERIALS AND METHODS A cross-sectional descriptive study was conducted in Segovia Palace Health Centre (Madrid). INCLUSION CRITERIA to be included in the domiciliary care protocol. EXCLUSION CRITERIA terminal patient, hospitalised or surgery in the last 3 months. The variables used include, age, sex, duration of domiciliary care, mobility, anticoagulant or antiplatelet treatment and reason, and associated and precipitating factors to calculate the risk of TED according to the PRETEMED guidelines, and if they receive such prophylaxis, by reviewing computerised medical records and meeting with the staff responsible. RESULTS The study included a total of 187 patients, of whom 81% were women There was a significant differences in mean age by sex (men, 76.91 years, 95% CI; 72.59-81.24, and women, 86.72 years, 95% CI; 72.59-81.24, P<.05). Almost two-thirds (65%) walked in the home. There were 3.7% patients who had an indication for receiving prophylaxis, but did not receive it, although 85.8% of them were on anticoagulants or antiplatelet therapy for other reasons. CONCLUSIONS Most patients in domiciliary care have a low baseline risk of developing a TED episode in our study. There should be more emphasis placed on the prophylaxis of TED in acute medical episodes in which patients with slightly elevated risk may increase the likelihood of TED. Observational studies should be conducted to study the baseline risk and the subsequent development of TED in the population receiving home care.
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Affiliation(s)
- B Cátedra
- Medicina de Familia y Comunitaria, Centro de Salud Palacio de Segovia, Servicio Madrileño de Salud, Madrid, España.
| | - F Muñoz
- Medicina de Familia y Comunitaria, Centro de Salud Palacio de Segovia, Servicio Madrileño de Salud, Madrid, España
| | - L Cabello
- Unidad Docente Multiprofesional Atención Familiar y Comunitaria Noroeste, Servicio Madrileño de Salud, Madrid, España
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Domínguez J, Harrison R, Atal R, Muñoz F. A new kidney allocation policy in Chile: computer-based simulations. Transplant Proc 2013; 45:1313-5. [PMID: 23726560 DOI: 10.1016/j.transproceed.2013.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Accepted: 01/15/2013] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Kidney allocation should reach a balance between equity and efficiency. In Chile kidneys are allocated based on ABO matching, first to medical priorities and then according to a point scheme considering human leukocyte antigen (HLA) match (60%), waiting list time (20%), and panel-reactive antibodies (PRA; 20%); pediatric recipients receive extra points. A new policy maintains ABO matching and medical priorities as the first step, but incorporates other successive steps: previous living donors donors, 0 mismatch, pediatric recipients, and finally all other recipients according to a point scheme incorporating recipient age, HLA match, PRA, and time on waiting list with similar proportions. We compared the resulting transplantations using the new versus the older allocation policy. METHODS We analyzed computer-generated simulations using actual patients (N = 1176) on the Chilean waiting list in 2011 with the 300 donors over the previous 3 years. RESULTS The new policy a significantly decreased recipient age from 43 ± 0.3 years to 41 ± 0.3 and increased the number of 0-mismatched transplantations from 3% to 4%. The mean HLA mismatch increased from 2.8 ± 0.1 to 3.6 ± 0.1. Waiting time increased from a mean of 38 ± 1 months to 40 ± 1 months, but patients remaining on the waiting list had less waiting time with the new rule. CONCLUSIONS With the proposed changes younger patients are being privileged and the importance of compatibility is diminished (except for 0-mismatched transplantations). The chance of a good match is directly related to the size of the recipient pool, thus an allocation policy that privileges HLA matching in a restricted recipient pool is especially unfavorable for younger patients. Including age of the recipient as a continuum can help to compensate for this lack of equity. Computer-generated simulations can help discern which policies are best suited for each country based on their local characteristics.
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Affiliation(s)
- J Domínguez
- Facultad de Medicina, Departamento de Urología, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Gastaca M, Matarranz A, Muñoz F, Valdivieso A, Aguinaga A, Testillano M, Bustamante J, Terreros I, Suarez MJ, Montejo M, Ortiz de Urbina J. Biliary complications in orthotopic liver transplantation using choledochocholedochostomy with a T-tube. Transplant Proc 2013; 44:1554-6. [PMID: 22841211 DOI: 10.1016/j.transproceed.2012.05.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite significant advances in orthotopic liver transplantation (OLT), biliary tract reconstruction is still a major source of complications. Choledochocholedochostomy with a T-tube used to be the standard procedure for biliary reconstruction after OLT. However, many centers currently avoid use of the T-tube because of the high incidence of complications. Our aim was to study the biliary complications occurring at our center when end-to-end choledochocholedochostomy (EE-CC) over a T-tube was used as the standard procedure for biliary reconstruction. A retrospective review was conducted of all patients who underwent liver transplantation from February 1, 1996, to April 30, 2010. Only patients requiring any therapy to treat biliary complications were considered, whereas those with concomitant hepatic artery complications were excluded. The study cohort consisted of 743 patients who had EE-CC with a T-tube. Of these, 73 patients (9.8%) experienced any biliary complication. Anastomotic strictures occurred in 17 patients (2.3%), and non-anastomotic strictures in 2 (0.3%). Fifteen patients with anastomotic strictures were successfully treated by dilatation and stenting. Bile leakage was diagnosed in 39 patients (5.2%). Leakage occurred at the anastomosis in 15 patients (2%), and at the exit site of the T-tube in 24 patients (3.2%). Tube opening was the only treatment used in 30 patients with bile leakage (76.9%). Seven patients experienced leaks after elective T-tube removal (1%). Overall, repeat surgery to manage biliary complications was needed in 9 patients (1.2%). The mortality rate from biliary complications was 0.13%. In conclusion, EE-CC with a T-tube was followed by a low incidence of biliary complications. The complication rate after elective T-tube removal and the repeat surgery rate were extremely low. These results might challenge the current trend to avoid T-tube stenting in OLT.
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Affiliation(s)
- M Gastaca
- Hepato-biliary Surgery and Liver Transplantation Unit, Hospital Universitario de Cruces, Bilbao, Spain.
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de Pablos-Martín A, Muñoz F, Mather GC, Patzig C, Bhattacharyya S, Jinschek JR, Höche T, Durán A, Pascual MJ. KLaF4 nanocrystallisation in oxyfluoride glass-ceramics. CrystEngComm 2013. [DOI: 10.1039/c3ce41345d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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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Chaparro M, Panés J, García V, Merino O, Nos P, Domènech E, Peñalva M, García-Planella E, Esteve M, Hinojosa J, Andreu M, Muñoz F, Gutiérrez A, Mendoza JL, Barrio J, Barreiro-de M, Vera I, Vilar P, Cabriada JL, Montoro MA, Aldeguer X, Saro C, Gisbert JP. Long-term durability of response to adalimumab in Crohn's disease. Inflamm Bowel Dis 2012; 18:685-90. [PMID: 21618353 DOI: 10.1002/ibd.21758] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 04/04/2011] [Indexed: 12/19/2022]
Abstract
BACKGROUND Adalimumab is an effective treatment for Crohn's disease (CD), but may also be associated with loss of response. Few reports provide insight into the durability of treatment of CD with adalimumab for periods longer than 12 months in clinical practice. AIMS To evaluate the long-term durability of adalimumab maintenance treatment and to identify predictive factors associated with loss of response. METHODS CD patients who initially responded to adalimumab were evaluated in a historical cohort study. Maintenance of long-term response was estimated using Kaplan-Meier analysis. Cox regression analysis was performed to identify potential predictive factors for loss of efficacy. RESULTS In all, 380 CD patients were included (mean age, 38 years; 52% female). Of these, 43% had ileocolic CD, 50% inflammatory CD, and 41% perianal CD. Median follow-up with adalimumab was 8 months (range, 4-75 months). The annual risk of loss of response to adalimumab was 18% per patient-year of follow-up. Twenty-eight percent of patients were anti-TNF-naïve and 72% anti-TNF-experienced. The loss of efficacy was 8% per patient-year of follow-up in the anti-TNF-naïve patients and 22% in the anti-TNF-experienced group (P < 0.01). In the multivariate analysis, the presence of extraintestinal manifestations (hazard ratio [HR] = 1.7; 95% confidence interval [CI] = 1.02-2.9) and previous experience with other anti-TNF agents (HR = 2.5,95% CI = 1.2-5.3) were associated with higher risk of loss of efficacy. CONCLUSIONS A relevant proportion of CD patients on long-term adalimumab lost response. The risk of loss of response was higher (more than 2-fold) in anti-TNF-experienced than in anti-TNF-naïve patients (22% vs. 8% per patient-year of treatment). Having extraintestinal manifestations seems to increase the risk of loss of efficacy.
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Affiliation(s)
- M Chaparro
- Gastroenterology Units of Hospital de La Princesa and Instituto de Investigación Sanitaria Princesa, IP, Madrid, Spain.
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Ortega-Castro J, Frau J, Casasnovas R, Fernández D, Donoso J, Muñoz F. High- and low-spin Fe(III) complexes of various AGE inhibitors. J Phys Chem A 2012; 116:2961-71. [PMID: 22369344 DOI: 10.1021/jp210188w] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Density functional theory calculations [CPCM/UM06/6-31+G(d,p)] were used to elucidate the structures and relative stability of Fe(III) complexes with various ligands that inhibit the formation of advanced glycation end products (AGEs) or iron overloaded disease (viz. aminoguanidine, pyridoxamine, LR-74, Amadori compounds, and ascorbic acid). EDTA was used as the free energy reference ligand. The distorted neutral octahedral complex containing one iron atom and three molecules of pyridoxamine [Fe(PM)(3)] was found to be the most stable. The stability of the complexes decreases in the following chelate sequence: pyridoxamine, Amadori complex, aminoguanidine, LR inhibitor, and ascorbic acid.
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Affiliation(s)
- J Ortega-Castro
- Institut d'Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain
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Chaparro M, Burgueño P, Iglesias E, Panés J, Muñoz F, Bastida G, Castro L, Jiménez C, Mendoza JL, Barreiro-de Acosta M, Senent SG, Gomollón F, Calvet X, García-Planella E, Gómez M, Hernández V, Hinojosa J, Mañosa M, Nyssen OP, Gisbert JP. Infliximab salvage therapy after failure of ciclosporin in corticosteroid-refractory ulcerative colitis: a multicentre study. Aliment Pharmacol Ther 2012; 35:275-83. [PMID: 22142227 DOI: 10.1111/j.1365-2036.2011.04934.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Ciclosporin has proven to be effective in patients with corticosteroid-refractory ulcerative colitis (UC). When therapy with this drug fails, infliximab can be considered to avoid colectomy. The efficacy and safety of this sequential approach remain unknown. AIM To assess the efficacy and safety profile of treatment with infliximab after failure of ciclosporin in patients with a corticosteroid-refractory flare of UC. METHODS Retrospective review of medical records of patients with a corticosteroid-refractory flare of UC who did not respond to ciclosporin and received salvage therapy with infliximab within a month of discontinuing ciclosporin. The severity of the flare and response to the treatment were graded using the Lichtiger index. Cumulative rates of colectomy were calculated using Kaplan-Meier analysis. Cox regression analysis was performed to identify predictors of colectomy. To evaluate the safety profile of this treatment strategy, any adverse event occurring after the first infusion of infliximab was considered. RESULTS The study population comprised 47 patients with corticosteroid-refractory UC treated with infliximab after failure of ciclosporin. The median baseline Lichtiger index was 13. The mean time from the last ciclosporin dose to the first infliximab infusion was 6 days. After the first infliximab infusion, 13% of patients achieved remission, and 74% partial response. Of the 35 patients who received the third infliximab infusion, 60% achieved remission, and 37% partial response. Fourteen patients (30%) underwent colectomy. The rate of adverse events was 23%. One death occurred in a 40-year-old man who failed ciclosporin and infliximab and underwent surgery 10 days after the first infliximab infusion; he died of nosocomial pneumonia. CONCLUSIONS Treatment with infliximab makes it possible to avoid colectomy in two-thirds of corticosteroid-refractory UC patients in whom ciclosporin fails. However, the rates of adverse events and mortality mean that the decision to administer sequential therapy (ciclosporin-infliximab) should be taken on an individual basis.
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Affiliation(s)
- M Chaparro
- Gastroenterology Department, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa, Madrid, Spain.
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Muñoz F, Tresserras P, Montserrat JR, Sancho FJ, Bartumeus F. [A retrospective study about 11 cases of Esthesioneuroblastomas treated in Hospital Santa Creu i Sant Pau between 2000 and 2008 and literature review]. Neurocirugia (Astur) 2011; 22:401-418. [PMID: 22031159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION. Esthesioneuroblastoma (ENB) is a very uncommon malignant tumor with a neuroectodermal origin that usually involves the anterior cranial fossa and nasal cavity. OBJECTIVES. To review our experience in the management of ENB and assess the validity of the histopathological diagnosis, modality of treatment and prognostic factors of the disease comparing our findings with the literature. METHODS. A retrospective study of 11 cases with the diagnosis of esthesioneuroblastoma treated in our hospital between 2000 and 2008. Statistical analysis was performed in search for prognostic factors. The bibliography about ENB published between 1990 and 2009 was reviewed RESULTS. There were 3 women and 8 men, with a mean age of 42 years old (range 20-71y). Their symptoms upon admission were nasal obstruction (81%), epistaxis (27%), visual loss (18%), headache and others. According to the Kadish Stage, 2 were stage B and 9 were stage C. Dulguerov and Calcaterra Classification was also used: 2 were T2, 3 were T3 and 6 were T4. The hystopathological result according to the Hyams classification was: 2 cases in stage I, 4 in stage II, 3 in stage III and 2 in stage IV. The two cases classified in stage IV changed the diagnosis to undifferenciate tumor in the second biopsy. A subcranial approach was performed in 8 cases combined with endonasal endoscopy to confirm the total removal, followed by radiotherapy in all and chemotherapy in one case, resulting on 62% (5 patients) being alive without disease, 12,5% (1 p) alive with disease, and 25% (2 p) dead of disease. Another patient was operated by a single endonasal endoscopic approach and a subtotal removal was achieved. This patient is alive without disease. The other 2 patients were treated by biopsy plus radiotherapy and chemotherapy, because they were considered unresectable, and one of them is alive with disease and the other one is dead of disease. Radiotherapy was performed in all cases and chemotherapy in 5 cases. The hystopathological grading system of Hyams was considered statistically significant as a prognostic factor of disease-free survival. CONCLUSIONS. When the hystopathological diagnosis of ENB is considered, the Hyams classification can be valid considering grade IV as an advanced stage that is sometimes difficult to differentiate from other undiferentiated tumors. The subcranial approach or craneofacial resection in advanced stages (Kadish C and some B) should be considered as the first treatment of choice. Radiotherapy is indicated in all cases and chemotherapy in selected cases. Hyams' classification was the only staging system that proved useful as a prognostic factor in our series.
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Affiliation(s)
- F Muñoz
- Servicio de Neurocirugía. Hospital Santa Creu i Sant Pau. Barcelona
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Nuñez J, Sanz-Blasco S, Vignoletti F, Muñoz F, Arzate H, Villalobos C, Nuñez L, Caffesse RG, Sanz M. Periodontal regeneration following implantation of cementum and periodontal ligament-derived cells. J Periodontal Res 2011; 47:33-44. [PMID: 21906056 DOI: 10.1111/j.1600-0765.2011.01402.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND OBJECTIVE The periodontal regeneration of bone defects is often unsatisfactory and could be largely improved by cell therapy. Therefore, the purpose of this study was to evaluate the regenerative potential of implanting canine cementum-derived cells (CDCs) and canine periodontal ligament-derived cells (PDLDCs) in experimentally created periodontal intrabony defects in beagle dogs. MATERIAL AND METHODS Cells were obtained from premolars extracted from four beagle dogs. Three-wall intrabony periodontal defects, 3 mm wide and 4 mm deep, were surgically created in their second and fourth premolars and plaque was allowed to accumulate. Once the defects were surgically debrided, periodontal regeneration was attempted by random implantation of collagen sponges embedded with 750,000 CDCs, 750,000 PDLDCs or culture medium. After 3 mo of healing, specimens were obtained and periodontal regenerative outcomes were assessed histologically and histometrically. RESULTS The histological analysis showed that a minimal amount of new cementum was formed in the control group (1.56 ± 0.39 mm), whereas in both test groups, significantly higher amounts of new cementum were formed (3.98 ± 0.59 mm in the CDC group and 4.07 ± 0.97 mm in the PDLDC group). The test groups also demonstrated a larger dimension of new connective tissue, resulting in a significantly more coronal level of histological attachment. CONCLUSION This proof-of-principle study suggests that cellular therapy, in combination with a collagen sponge, promoted periodontal regeneration in experimental intrabony periodontal defects.
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Affiliation(s)
- J Nuñez
- Institute of Molecular Biology and Genetics, University of Valladolid and Spanish Research Council, Valladolid, Spain.
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Pineda FP, Ortega-Castro J, Alvarez-Idaboy JR, Frau J, Cabrera BM, Ramírez JC, Donoso J, Muñoz F. Hydrolysis of a Chlorambucil Analogue. A DFT study. J Phys Chem A 2011; 115:2359-66. [DOI: 10.1021/jp111202p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. P. Pineda
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 179, 18 Sur y Av. San Claudio, Col. San Manuel, 72570 Puebla, Puebla, México
| | - J. Ortega-Castro
- Institut d’Investigació en Ciènces de la Salut (IUNICS), Department de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
- Mexico-EU international collaboration network RMAYS, Universidad Nacional Autónoma de México, México D.F. 04510, México
| | - J. R. Alvarez-Idaboy
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México D.F. 04510, México
- Mexico-EU international collaboration network RMAYS, Universidad Nacional Autónoma de México, México D.F. 04510, México
| | - J. Frau
- Institut d’Investigació en Ciènces de la Salut (IUNICS), Department de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
- Mexico-EU international collaboration network RMAYS, Universidad Nacional Autónoma de México, México D.F. 04510, México
| | - B. M. Cabrera
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 179, 18 Sur y Av. San Claudio, Col. San Manuel, 72570 Puebla, Puebla, México
| | - J. C. Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 179, 18 Sur y Av. San Claudio, Col. San Manuel, 72570 Puebla, Puebla, México
| | - J. Donoso
- Institut d’Investigació en Ciènces de la Salut (IUNICS), Department de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
- Mexico-EU international collaboration network RMAYS, Universidad Nacional Autónoma de México, México D.F. 04510, México
| | - F. Muñoz
- Institut d’Investigació en Ciènces de la Salut (IUNICS), Department de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
- Mexico-EU international collaboration network RMAYS, Universidad Nacional Autónoma de México, México D.F. 04510, México
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Muñoz F, Tresserras P, Bartumeus F, Montserrat J, Sancho F. Estudio retrospectivo de 11 casos de estesioneuroblastomas tratados en el Hospital Santa Creu i Sant Pau entre los años 2000 y 2008 más revisión de la literatura. Neurocirugia (Astur) 2011. [DOI: 10.1016/s1130-1473(11)70035-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ripoll G, Joy M, Muñoz F. Use of dietary vitamin E and selenium (Se) to increase the shelf life of modified atmosphere packaged light lamb meat. Meat Sci 2011; 87:88-93. [DOI: 10.1016/j.meatsci.2010.09.008] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Revised: 07/26/2010] [Accepted: 09/13/2010] [Indexed: 10/19/2022]
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Ortega-Castro J, Adrover M, Frau J, Salvà A, Donoso J, Muñoz F. DFT Studies on Schiff Base Formation of Vitamin B6 Analogues. Reaction between a Pyridoxamine-Analogue and Carbonyl Compounds. J Phys Chem A 2010; 114:4634-40. [DOI: 10.1021/jp909156m] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. Ortega-Castro
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - M. Adrover
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - J. Frau
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - A. Salvà
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - J. Donoso
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - F. Muñoz
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, Cra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
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42
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Guerrero-Martin J, Chaudri A, Muñoz F, Durán N, Ezquerro A, Suero P. P01-354 - The relations between psychosocial factors, care burden and depression on the dementia family caregivers. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70562-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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43
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Moreno E, Macías E, Dávila I, Laffond E, Asensio T, Muñoz F, Lorente F. Recurring eczema during pregnancy and after delivery due to sensitization caused by an ultrasound gel. Ultrasound Obstet Gynecol 2009; 34:120-121. [PMID: 19565530 DOI: 10.1002/uog.6425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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44
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Ortega-Castro J, Adrover M, Frau J, Donoso J, Muñoz F. Erratum to ‘Chelating power of LR-74, a new AGE-inhibitor’ [Chemical Physics Letters 465 (2008) 120]. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.01.081] [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: 10/21/2022]
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45
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46
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Ripoll G, Joy M, Muñoz F, Albertí P. Meat and fat colour as a tool to trace grass-feeding systems in light lamb production. Meat Sci 2008; 80:239-48. [DOI: 10.1016/j.meatsci.2007.11.025] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2007] [Revised: 10/25/2007] [Accepted: 11/27/2007] [Indexed: 11/25/2022]
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47
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Carrascosa P, Domínguez F, Muñoz F. Luxación inveterada carpo-metacarpiana del quinto dedo: diagnóstico y tratamiento. Rev Iberoam Cir Mano 2008. [DOI: 10.1055/s-0037-1606730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Las luxaciones aisladas de la articulación carpometacarpiana del quinto dedo son infrecuentes. Nalebuff clasificó estas luxaciones según el desplazamiento de la base del quinto metacarpiano. Una paciente con luxación volar-cubital carpometacarpiana del quinto dedo fue remitida a la consulta de mano doce meses después de la lesión. En lesiones agudas la reducción cerrada es la técnica utilizada. Sin embargo en situación de retraso en el tratamiento la reducción abierta proporciona mayor éxito funcional
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Affiliation(s)
- P. Carrascosa
- Médico Adjunto Servicio de Cirugía Ortopédica y Traumatología del Hospital de Jerez de la Frontera. Cádiz
| | - F.J. Domínguez
- Médico Residente de cuarto año Servicio de Cirugía Ortopédica y Traumatología del Hospital de Jerez de la Frontera. Cádiz
| | - F. Muñoz
- Jefe de Servicio Servicio de Cirugía Ortopédica y Traumatología del Hospital de Jerez de la Frontera. Cádiz
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48
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Boardman BM, Valderrama JM, Muñoz F, Wu G, Bazan GC, Rojas R. Remote Activation of Nickel Complexes by Coordination of B(C6F5)3 to an Exocyclic Carbonitrile Functionality. Organometallics 2008. [DOI: 10.1021/om700933y] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brycelyn M. Boardman
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
| | - Juan M. Valderrama
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
| | - Flor Muñoz
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
| | - Guang Wu
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
| | - Guillermo C. Bazan
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
| | - Rene Rojas
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile, Center for Polymer and Organic Solids, Departments of Chemistry and Materials, University of California, Santa Barbara, California 93106, and Centro para la Investigación Interdisciplinaria Avanzada en Ciencias de Materiales (CIMAT)
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49
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Carbó J, Romero-Portales JM, Casado I, Alonso MJ, Rivas P, Muñoz F, García-Samaniego J. [Endoscopic aspect of gastrointestinal infection with atypical mycobacteria in a patient with AIDS]. Rev Esp Enferm Dig 2008; 99:661-2. [PMID: 18271666 DOI: 10.4321/s1130-01082007001100008] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J Carbó
- Servicios de Aparato Digestivo, Anatomía Patológica y Enfermedades Infecciosas, Hospital Carlos III, Madrid
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50
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Molina V, Reig S, Sanz J, Palomo T, Benito C, Sarramea F, Pascau J, Sánchez J, Martín-Loeches M, Muñoz F, Desco M. Differential clinical, structural and P300 parameters in schizophrenia patients resistant to conventional neuroleptics. Prog Neuropsychopharmacol Biol Psychiatry 2008; 32:257-66. [PMID: 17900778 DOI: 10.1016/j.pnpbp.2007.08.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2006] [Revised: 07/13/2007] [Accepted: 08/11/2007] [Indexed: 10/22/2022]
Abstract
Schizophrenia is a heterogeneous clinical condition that may reflect a variety of biological processes. In particular, treatment-resistant (TR) schizophrenia may have a distinct neurobiological substrate. Within the context of clinical data, a simultaneous study with different imaging techniques could help to elucidate differences in cerebral substrates among schizophrenia patients with different responses to treatment. In the present work we used a set of biological data (basal and longitudinal volumetry, and P300 event-related potential measurements) to compare TR and treatment-responsive chronic schizophrenia patients with healthy controls. The TR patients showed higher baseline clinical scores, a more severe basal profile of brain alterations, as well as a different outcome as regards to volume deficits. These data support the notion that biological substrates vary among groups of different psychotic patients, even when they have the same diagnosis, and that those substrates may be related to the response to treatment.
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Affiliation(s)
- V Molina
- Department of Psychiatry, Hospital Clínico Universitario, Salamanca, Spain.
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