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Garcia J, Bassa P, Soler M, Jaramillo A, Ortiz S, Riera E. Benign differentiation of treated neuroblastoma as a cause of false positive by 123I-MIBG SPECT/CT. Usefulness of 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2019.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Santas Olmeda E, De La Espriella R, Minana G, Valero E, Palau P, Amiguet M, Gonzalez J, Soler M, Sanchis J, Chorro FJ, Nunez J. P3543Rehospitalization burden in heart failure with mid-range ejection fraction and morbidity burden. Is it a distinct phenotype? Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Heart failure with mid-range ejection fraction (HFmrEF) has been recognized as a distinct HF phenotype, but wether patients on this category fare worse, similarly, or better than those with HF with reduced EF (HFrEF) or preserved EF (HFpEF) in terms of rehospitalization risk over time remains unclear. We therefore sought to characterize the mordibity burden of HFmrEF patients by evaluating the risk of recurrent hospitalizations following an admission for acute HF.
Methods
We prospectively included 2,961 consecutive patients discharged for acute HF in our institution from 2004 to 2017. Patients were categorized according to their ejection fraction (EF) obtained by an echocardiography during the index admission: HFmrEF (EF 41–49%), HFrEF (EF≤40%) and HFpEF (EF≥50%). Negative binomial regression method was used to evaluate the association between EF status and recurrent all-cause and HF-related admissions. Risk estimates were expressed as incidence ratio ratios (IRR).
Results
Mean age of the cohort was 73.9±11.1 years, 49% were women, and 46.0% had suffered from previous HF admissions. 472 patients (15.9%) had HFmrEF, 956 (32.3%) had HFrEF, and 1,533 (51.8%) had HFpEF. At a median (interquartile range) follow-up of 2.4 (4.4) years, 1,821 (61.5%) patients died and 6,035 all-cause readmissions were registered in 2,026 patients (68.4%), being 2,163 of them HF-related. Rates of all-cause readmission per 100 patients-years of follow-up were 43.4, 47.1 and 50.1 per HFrEF, HFmrEF and HFpEF categories, respectively. After multivariable adjustment, and compared to patients with HFrEF, HFmrEF status was not associated with a higher risk of all-cause or HF-related recurrent admissions (IRR=1.06; 95% confidence interval (CI), 0.93–1.20; p=0.89), and IRR=1.07; 95% CI, 0.91–1.26; p=0.389, respectively), whereas HFpEF status was associated with a non-significant increase in the risk of all-cause recurrent admissions but a similar risk of HF-related readmissions (IRR=1.10; 95% confidence interval (CI), 0.99–1.22; p=0.06, and IRR=1.01; 95% CI, 0.88–1.16; p=0.900, respectively)
Conclusion
Following an admission for acute HF, patients with HFmrEF have a similar all-cause and HF-related rehospitalization burden when compared to patients with HFrEF, by means of recurrent events analysis.
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Garcia J, Soler M, Álvarez-Moro F, Mourelo S, Ortiz S, Riera. E. 18F-FDG PET/CT in the diagnosis of the abscopal effect. A case report. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2019.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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García J, Soler M, Álvarez-Moro F, Mourelo S, Ortiz S, Riera E. La PET/TC con 18F-FDG en el diagnóstico del efecto abscopal. A propósito de un caso. Rev Esp Med Nucl Imagen Mol 2019; 38:330-331. [DOI: 10.1016/j.remn.2018.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 11/26/2022]
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Cremer M, Alfaro K, Garai J, Salinas M, Maza M, Zevallos A, Taxa L, Diaz AC, Castle P, Alonzo TA, Masch R, Soler M, Conzuelo-Rodriguez G, Gage JC, Felix JC. Evaluation of two alternative ablation treatments for cervical pre-cancer against standard gas-based cryotherapy: a randomized non-inferiority study. Int J Gynecol Cancer 2019; 29:ijgc-2018-000148. [PMID: 31055452 PMCID: PMC9884482 DOI: 10.1136/ijgc-2018-000148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/20/2019] [Accepted: 04/08/2019] [Indexed: 01/31/2023] Open
Abstract
INTRODUCTION Gas-based cryotherapy is the conventional ablative treatment for cervical pre-cancer in low-income settings, but the use of gas poses significant challenges. We compared the depth of necrosis induced by gas-based cryotherapy with two gas-free alternatives: cryotherapy using CryoPen,and thermoablation. METHODS We conducted a five-arm randomized non-inferiority trial: double-freeze carbon dioxide (CO2) cryotherapy (referent), single-freeze CO2 cryotherapy, double-freeze CryoPen, single-freeze CryoPen, and thermoablation. Subjects were 130 women scheduled for hysterectomy for indications other than cervical pathology, and thus with healthy cervical tissue available for histological evaluation of depth of necrosis post-surgery. The null hypothesis was rejected (ie, conclude non-inferiority) if the upper bound of the 90% confidence interval (90% CI) for the difference in mean depth of necrosis (referent minus each experimental method) was <1.14 mm. Patient pain during treatment was reported on a scale of 0 (no pain) to 10 (worst pain). RESULTS A total of 133 patients were enrolled in the study. The slides from three women were deemed unreadable. One patient was excluded because her hysterectomy was postponed for reasons unrelated to the study, and two patients were excluded because treatment application did not follow the established protocol. For the remaining 127 women, mean depth of necrosis for double-freeze CO2 (referent) was 6.0±1.6 mm. Differences between this and other methods were: single-freeze CO2 = 0.4 mm (90% CI -0.4 to 1.2 mm), double-freeze CryoPen= 0.7 mm (90% CI 0.04 to 1.4 mm), single-freeze CryoPen= 0.5 mm (90% CI -0.2 to 1.2 mm), and thermoablation = 2.6 mm (90% CI 2.0 to 3.1 mm). Mean pain levels were 2.2±1.0 (double-freeze CO2 cryotherapy), 1.8±0.8 (single-freeze CO2 cryotherapy), 2.5±1.4 (double-freeze CryoPen), 2.6±1.4 (single-freeze CryoPen), and 4.1±2.3 (thermoablation). DISCUSSION Compared with the referent, non-inferiority could not be concluded for other methods. Mean pain scores were low for all treatments. Depth of necrosis is a surrogate for treatment efficacy, but a randomized clinical trial is necessary to establish true cure rates.
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Garcia JR, Bassa P, Soler M, Jaramillo A, Ortiz S, Riera E. Benign differentiation of treated neuroblastoma as a cause of false positive by 123I-MIBG SPECT/CT. Usefulness of 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2019; 38:389-390. [PMID: 31000447 DOI: 10.1016/j.remn.2019.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/01/2022]
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García J, Baquero M, Soler M, Bassa P, Moreno C, Riera E. Diagnóstico de linfoma de Burkitt mediante PET cerebral con 11C-metionina en paciente VIH positivo con lesiones encefálicas indeterminadas. Rev Esp Med Nucl Imagen Mol 2019; 38:57-58. [DOI: 10.1016/j.remn.2018.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/16/2022]
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García J, Baquero M, Soler M, Bassa P, Moreno C, Riera E. Burkitt lymphoma diagnosed on 11C-Methionine cerebral PET in an HIV-positive patient with undetermined brain injury. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2018.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Garcia J, Castañeda A, Morales A, Bassa P, Soler M, Riera E. Staging and follow-up of a Ewing sarcoma patient using 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2018. [DOI: 10.1016/j.remnie.2017.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Maza M, Melendez M, Masch R, Alfaro K, Chacon A, Gonzalez E, Soler M, Conzuelo-Rodriguez G, Gage JC, Alonzo TA, Castle PE, Felix JC, Cremer M. Acceptability of self-sampling and human papillomavirus testing among non-attenders of cervical cancer screening programs in El Salvador. Prev Med 2018; 114:149-155. [PMID: 29958860 DOI: 10.1016/j.ypmed.2018.06.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/21/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
Abstract
In a cross-sectional study carried out in El Salvador between February 2016 and July 2017, self-sampling and human papillomavirus (HPV) testing was found to be highly acceptable among 2019 women who had not attended a cervical cancer screening in at least 3 years. Within this population, HPV positivity rates differed according to age, marital status, number of children, and lifetime sexual partners. The proportion of women who tested HPV positive or who were diagnosed with cervical intraepithelial neoplasia grade 2 (CIN2) or more severe diagnoses (CIN2+) was similar to the general population of the area. Among the reasons for failing to participate in previous screening programs, non-attending women described logistic concerns, but also erroneous beliefs regarding HPV and cervical cancer, misconceptions regarding the screening procedure, discomfort with male providers, and confidentiality fears. The aim of this study was to identify opportunities and challenges that emerged from the use of self-sampling and HPV testing as part of a public cervical cancer control effort in a low-resource setting.
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Garcia J, Bassa P, Soler M, Moro FA, Blanch T, Riera E. Local recurrence on PET/CT with 11C-choline following brachytherapy for prostate cancer: A characteristic tracer uptake pattern. Rev Esp Med Nucl Imagen Mol 2018. [DOI: 10.1016/j.remnie.2018.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Garcia J, Bassa P, Soler M, Moro FA, Blanch T, Riera E. Patrón característico de recidiva local tras braquiterapia prostática mediante PET/TC con 11C-colina. Rev Esp Med Nucl Imagen Mol 2018; 37:323-324. [DOI: 10.1016/j.remn.2017.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
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Martinez M, Pallares F, Soler M, Agut A. Relationship between ultrasonographic and histopathological measurements of small intestinal wall layers in fresh cat cadavers. Vet J 2018; 237:1-8. [DOI: 10.1016/j.tvjl.2018.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/31/2022]
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Siroux V, Ballardini N, Soler M, Lupinek C, Boudier A, Pin I, Just J, Nadif R, Anto JM, Melen E, Valenta R, Wickman M, Bousquet J. The asthma-rhinitis multimorbidity is associated with IgE polysensitization in adolescents and adults. Allergy 2018; 73:1447-1458. [PMID: 29331026 DOI: 10.1111/all.13410] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND Children with multimorbid asthma and rhinitis show IgE polysensitization to several allergen sources. This association remains poorly studied in adolescents and adults using defined allergen molecules. We investigated IgE sensitization patterns towards a broad panel of aeroallergen components in adults and adolescents with a focus on individuals with asthma and rhinitis multimorbidity. METHODS IgE reactivity to 64 micro-arrayed aeroallergen molecules was determined with the MeDALL-chip in samples from the French EGEA study (n = 840, age = 40.7 ± 17.1) and the Swedish population-based birth cohort BAMSE (n = 786, age = 16 ± 0.26). The age- and sex-adjusted associations between the number of IgE-reactive allergen molecules (≥0.3 ISU) and the asthma-rhinitis phenotypes were assessed using a negative binomial model. RESULTS Groups representing 4 phenotypes were identified: no asthma-no rhinitis (A-R-; 30% in EGEA and 54% in BAMSE), asthma alone (A+R-; 11% and 8%), rhinitis alone (A-R+; 15% and 24%) and asthma-rhinitis (A+R+; 44% and 14%). The numbers of IgE-reactive aeroallergen molecules significantly differed between phenotypes (median in A-R-, A+R-, A-R+ and A+R+: 0, 1, 2 and 7 in EGEA and 0, 0, 3 and 5 in BAMSE). As compared to A-R- subjects, the adjusted ratio of the mean number of IgE-reactive molecules was higher in A+R+ than in A+R- or A-R+ (10.0, 5.4 and 5.0 in EGEA and 7.2, 0.7 and 4.8 in BAMSE). CONCLUSION The A+R+ phenotype combined the sensitization pattern of both the A-R+ and A+R- phenotypes. This multimorbid polysensitized phenotype seems to be generalizable to various ages and allergenic environments and may be associated with specific mechanisms.
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Algara M, López-Guerra J, Flaquer A, Beato I, Martínez F, Rodríguez J, Sanz X, Salinas J, Soler M, Frías A, Juan G, Manso A. EP-1301: Incidental or intentional node irradiation in breast cancer. preliminary results of OPTIMAL trial. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31611-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Algara M, Rodríguez E, Flaquer A, Beato I, Martínez F, Rodríguez J, Sanz J, Salinas J, Soler M, Frias A, Juan G, Manso A, Calin A, Diaz I, Gonzalez E, Lozano A, Carrasco F, Garcia I, Manterola A, Guimon E. OPTimizing Irradiation through Molecular Assessment of Lymph Node: Preliminary results of OPTIMAL Trial comparing incidental versus intentional irradiation in early breast cancer. Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30396-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Soler A, López M, Martínez D, Benedicto A, Navarro A, Monroy J, Albert M, Domingo C, Soler M. EP-1620: Muscle-Invasive Bladder Cancer Bladder-Preservation by Combined-Modality Therapy: Long-Term Outcomes. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31929-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Maza M, Melendez M, Cremer M, Masch R, Alonzo T, Castle P, Alfaro K, Soler M, Conzuelo G, Gage J. High Acceptability of Human Papillomavirus Self-Sampling Among Nonattenders of a Public Cervical Cancer Screening Program in El Salvador. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.50000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract 29 Purpose In high-income countries, human papillomavirus (HPV) self-sampling has been demonstrated to increase adherence to cervical cancer prevention initiatives in underscreened women. El Salvador recently completed the Cervical Cancer Prevention in El Salvador (CAPE) program using a high-risk HPV test as the screening method. Although successful, 12% of targeted women did not attend their screening appointments. HPV self-sampling may offer the opportunity to reach these nonattending women. In the current study, we evaluated HPV self-sampling as a way to increase screening among CAPE nonattenders and to report factors that impact self-sampling acceptability in a low- to middle-income country. Methods Nonattending and underscreened women age 30 to 59 years from the Paracentral region of El Salvador were invited to participate (N = 2,019). Women were visited at home and offered self-sampling with an HPV test. Women who provided consent also received a series of questionnaires to collect demographic and test acceptability data. After tests were analyzed, women were provided with results during another home visit. HPV-positive women were asked to make an appointment at a local clinic to undergo colposcopy, biopsy, and, if eligible, cryotherapy treatment. Women with contraindications for cryotherapy were referred to appropriate treatment or follow-up. Results Of 1,989 eligible women, 94% accepted the HPV self-sampled test. Of these, 11.8% (n = 221) tested positive. All but 13 women attended the colposcopy appointment, and 190 women received cryotherapy. Biopsy results revealed low-grade precancer in 6.3% of women, whereas 12.6% received diagnoses of high-grade precancer. Reasons for not attending the original CAPE appointment included logistic concerns, but also discomfort with male providers, confidentiality fears, and misconceptions regarding HPV, cervical cancer, and the screening procedure. Conclusion HPV self-sampling was shown to be overwhelmingly acceptable to nonattending and underscreened rural women in El Salvador. This method may be a feasible alternative that circumvents barriers to cervical cancer screening in low- to middle-income countries. AUTHORS' DISCLOSURES OF POTENTIAL CONFLICTS OF INTEREST No COIs from the authors
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Meléndez M, Herrera A, Hernández X, Rodríguez B, Soler M, Alfaro K, Masch R, Cremer M, Maza M. Cervical Cancer Screening in Transgender Men in El Salvador: A Pilot Study. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.40000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract 27 Purpose Transgender persons are particularly vulnerable to a lack of adequate health care, particularly with regard to sexual and reproductive health. In El Salvador, where cervical cancer is a leading cause of cancer death, transgender men are at high risk of developing this disease. Whereas the Papanicolaou test is the most widely used screening method for cervical cancer, there are reports of high numbers of unsatisfactory results among transgender men compared with nontransgender persons. Human papillomavirus (HPV) testing may be a more viable screening option in this population. In this pilot study, we assessed the feasibility of cervical cancer screening among transgender men using a self-sampling HPV test as an alternative to the Papanicolaou test. Methods Participants were transgender men of the Organización Generación Hombres Trans El Salvador (Trans Men Generation Organization of El Salvador) between age 19 and 55 years. After obtaining informed consent, a questionnaire was administered to 24 participants to collect sociodemographic, lifestyle, and sexual behavior data, and to assess knowledge about cervical cancer prevention. Participants then performed a vaginal, self-sampling HPV test. Participants who received a positive HPV result were offered a colposcopy evaluation. Results Almost all participants—23 of 24—agreed to conduct vaginal self-sampling. Of these, three (13%) of 23 participants tested positive, with the remainder obtaining a negative result. Colposcopies and biopsies were accepted by all three participants who tested positive. One participant was diagnosed with CIN3, whereas two2 were diagnosed with CIN1. Conclusion There is limited information on cervical cancer prevention among transgender men, particularly in low and middle-income countries. Use of HPV self-sampling tests is a viable method that can significantly improve participation in and acceptance of screening in this vulnerable population. HPV testing may reduce the number of unsatisfactory results generated when using Papanicolaou tests as a screening method. AUTHORS' DISCLOSURES OF POTENTIAL CONFLICTS OF INTEREST No COIs from the authors.
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Soler M, González-Bártulos M, Figueras E, Massaguer A, Feliu L, Planas M, Ribas X, Costas M. Delivering aminopyridine ligands into cancer cells through conjugation to the cell-penetrating peptide BP16. Org Biomol Chem 2018; 14:4061-70. [PMID: 27055538 DOI: 10.1039/c6ob00470a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peptide conjugates incorporating the N-based ligands (Me2)PyTACN or (S,S')-BPBP at the N- or the C-terminus of the cell-penetrating peptide were synthesized (PyTACN-BP16 (), BP16-PyTACN (), BPBP-BP16 (), and BP16-BPBP ()). Metal binding peptides bearing at the N-terminus the ligand, an additional Lys and a β-Ala were also prepared (PyTACN-βAK-BP16 () and BPBP-βAK-BP16 ()). Moreover, taking into account the clathrin-dependent endocytic mechanism of , the enzymatic cleavable tetrapeptide Gly-Phe-Leu-Gly was incorporated between the ligand and the N- or C-terminus of (BPBP-GFLG-BP16 () and BP16-GLFG-BPBP ()). Analysis of the cytotoxicity of all the peptide conjugates showed that: (i) the position of the ligand influenced the IC50 values, (ii) the incorporation of the βAla-Lys dipeptide rendered non active sequences, (iii) peptide conjugates derived from the (S,S')-BPBP ligand were more active than those bearing (Me2)PyTACN, and (iv) the introduction of the cleavable tetrapeptide significantly enhanced the activity of the BPBP conjugates (IC50 of 4.3 to 11.7 μM ( and ) compared to 26.0 to >50 μM (, and )). The most active peptide was BPBP-GFLG-BP16 () (IC50 of 4.3 to 5.0 μM). This high activity was attributed to its high internalization in MCF-7 cells, as shown by flow cytometry, and to the subsequent release of the ligand by the intracellular cleavage of the enzyme-labile spacer, as observed in cathepsin B enzymatic assays. Therefore, these results pave the way for the design of novel peptide conjugates to be used in pro-oxidant anticancer therapies.
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Soler M, Úbeda X. Evaluation of fire severity via analysis of photosynthetic pigments: Oak, eucalyptus and cork oak leaves in a Mediterranean forest. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 206:65-68. [PMID: 29059572 DOI: 10.1016/j.jenvman.2017.10.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/05/2017] [Accepted: 10/07/2017] [Indexed: 06/07/2023]
Abstract
Few studies to date have examined the effect of the high temperatures attained during wildfire events on the pigments present in forest foliage. Here, we seek to analyse the main photosynthetic pigments in the leaves of the oak, cork oak and eucalyptus following a wildfire. We also subject leaves of these last two species to a range of contact temperatures (100-500 °C) in the laboratory using a muffle furnace. The samples were left in the muffle for two hours at 100, 150, 200, 250, 300, 350, 400 and 500 °C, in line with other soil study models (Úbeda et al., 2009; Düdaite et al., 2013). At temperatures above 250 °C, chromatography fails to detect any pigments. A minimal increase in temperature degrades chlorophyll, the process being more rapid in eucalyptus than in cork oak, while it increases pheophytin concentrations.
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Garcia J, Riera E, Bassa P, Mourelo S, Soler M. 18 F-FDG PET/CT in follow-up evaluation in paediatric patients with Langerhans histiocytosis. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2017.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Garcia J, Soler M, Bassa P, Minoves M, Riera E. Assessment of soft tissue involvement in pressure ulcers and osteomyelitis diagnosis by 18 F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2017.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Garcia J, Corbella C, Baquero M, Bassa P, Soler M. Extracranial metastasis of multiforme glioblastoma detected by 11 C-methionine brain PET/CT. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Garcia J, Corbella C, Baquero M, Bassa P, Soler M. Detección de metástasis extracraneal de glioblastoma multiforme mediante PET/TC cerebral con 11 C-metionina. Rev Esp Med Nucl Imagen Mol 2017; 36:271-272. [DOI: 10.1016/j.remn.2016.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/04/2016] [Accepted: 08/05/2016] [Indexed: 11/29/2022]
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