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Oliver J, Dougherty C, Downing N, Hull A, Jimenez B, Ediger D, Park M, Scwartz B, Walther N, Wolterstorff C, Olivera T. 83 An Interim Reporting of Trigger Point Injection for Myofascial Pain Syndrome (T-PIMPS): A 3-Arm, Partially Blinded, Randomized Controlled Trial. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.106] [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: 11/15/2022]
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2
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Conde E, Hernandez S, Caminoa A, Benito A, Martinez R, Alonso M, Jimenez B, Boni V, Remon J, Pijuan L, Clave S, Arriola E, Esteban I, De Castro J, Sansano I, Felip E, Abdulkader I, Garcia J, Rojo F, Domine M, Teixido C, Reguart N, Compañ D, Insa A, Mancheño N, Palanca S, Juan O, Baixeras N, Nadal E, Cebollero M, Calles A, Martin P, Salas C, Provencio M, Aranda I, Massuti B, Lopez-Vilaro L, Majem M, Enguita A, Paz-Ares L, Garrido P, Lopez-Rios F. MA14.02 RET Fusion Testing in Advanced Non-Small Cell Lung Carcinoma Patients: the RETING Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.183] [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: 11/25/2022]
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3
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Remon J, Tabbò F, Jimenez B, Collazo A, de Castro J, Novello S. Sequential blinded treatment decisions in ALK-positive non-small cell lung cancers in the era of precision medicine. Clin Transl Oncol 2020; 22:1425-1429. [PMID: 31955355 DOI: 10.1007/s12094-020-02290-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 12/16/2019] [Accepted: 01/03/2020] [Indexed: 11/25/2022]
Abstract
Next-generation ALK TKIs have become the new standard of care in first-line setting in advanced ALK-positive NSCLC patients. However, sequential strategies at progression are relevant, as may have an impact on patients' outcome. In this commentary we discuss whether genomic-tailored strategies at progression would be more suitable for improving outcome of ALK-positive NSCLC patients.
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Affiliation(s)
- J Remon
- Department of Medical Oncology, Centro Integral Oncológico Clara Campal (HM-CIOCC), Hospital HM Delfos, HM Hospitales, Avinguda de Vallcarca, 151, 08023, Barcelona, Spain.
| | - F Tabbò
- Thoracic Oncology Unit, Department of Oncology, University of Torino, Regione Gonzole, 10, 10043, Orbassano (TO), Turin, Italy
| | - B Jimenez
- Medical Oncology Department, Centro Integral Oncológico Clara Campal Madrid, HM Sanchinarro, Calle Oña, 10, 28050, Madrid, Spain
| | - A Collazo
- Medical Oncology Department, Centro Integral Oncológico Clara Campal Madrid, HM Sanchinarro, Calle Oña, 10, 28050, Madrid, Spain
| | - J de Castro
- Medical Oncology Department, Centro Integral Oncológico Clara Campal Madrid, HM Sanchinarro, Calle Oña, 10, 28050, Madrid, Spain
| | - S Novello
- Thoracic Oncology Unit, Department of Oncology, University of Torino, Regione Gonzole, 10, 10043, Orbassano (TO), Turin, Italy
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Mountzios G, Signorelli D, Cobo JR, Banini M, Economopoulou P, Russo GL, Baxevanos P, Roila F, de Toma A, Banna G, Christopoulou A, Jimenez B, Linardou H, Calles A, Galetta D, Addeo A, Camerini A, Kosmidis P, Garassino M, Metro G. Pembrolizumab frontline monotherapy in patients with NSCLC and high PD-L1 expression: Real-world data from a European Cohort with focus on subgroups of interest. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Metro G, Signorelli D, Rey-Cobo J, Banini M, Economopoulou P, Lo Russo G, Baxevanos P, Roila F, De Toma A, Banna G, Christopoulou A, Jimenez B, Collazo-Lorduy A, Linardou H, Blanco AC, Galetta D, Addeo A, Camerini A, Kosmidis P, Garassino M, Mountzios G. P1.16-09 Post-Progression Outcomes After Pembrolizumab in Patients with NSCLC and High PD-L1 Expression: Real-World Data from a European Cohort. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hernandez S, Angulo B, Dominguez C, Caminoa A, Muriel A, Alonso M, Jimenez L, Peñalver R, Collazo-Lorduy A, Jimenez B, Garrido P, Paz-Ares L, De Castro J, Conde E, Lopez-Rios F. P2.09-11 TMB Estimated with Targeted NGS in Early Stage Squamous Cell Carcinoma: Correlation with PD-L1 Expression and Lymphocyte Density. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1308] [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: 10/28/2022]
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8
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Gómez-Maldonado L, Tiana M, Roche O, Prado-Cabrero A, Jensen L, Fernandez-Barral A, Guijarro-Muñoz I, Favaro E, Moreno-Bueno G, Sanz L, Aragones J, Harris A, Volpert O, Jimenez B, del Peso L. EFNA3 long noncoding RNAs induced by hypoxia promote metastatic dissemination. Oncogene 2015; 34:2609-20. [PMID: 25023702 PMCID: PMC4722872 DOI: 10.1038/onc.2014.200] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 05/09/2014] [Accepted: 05/09/2014] [Indexed: 01/04/2023]
Abstract
The presence of hypoxic regions in solid tumors is an adverse prognostic factor for patient outcome. Here, we show that hypoxia induces the expression of Ephrin-A3 through a novel hypoxia-inducible factor (HIF)-mediated mechanism. In response to hypoxia, the coding EFNA3 mRNA levels remained relatively stable, but HIFs drove the expression of previously unknown long noncoding (lnc) RNAs from EFNA3 locus and these lncRNA caused Ephrin-A3 protein accumulation. Ephrins are cell surface proteins that regulate diverse biological processes by modulating cellular adhesion and repulsion. Mounting evidence implicates deregulated ephrin function in multiple aspects of tumor biology. We demonstrate that sustained expression of both Ephrin-A3 and novel EFNA3 lncRNAs increased the metastatic potential of human breast cancer cells, possibly by increasing the ability of tumor cells to extravasate from the blood vessels into surrounding tissue. In agreement, we found a strong correlation between high EFNA3 expression and shorter metastasis-free survival in breast cancer patients. Taken together, our results suggest that hypoxia could contribute to metastatic spread of breast cancer via HIF-mediated induction of EFNA3 lncRNAs and subsequent Ephrin-A3 protein accumulation.
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Affiliation(s)
- L Gómez-Maldonado
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - M Tiana
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - O Roche
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, Madrid, Spain
| | - A Prado-Cabrero
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - L Jensen
- Department of Medicine and Health Sciences, Linköping University Linköping, Sweden
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - A Fernandez-Barral
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - I Guijarro-Muñoz
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - E Favaro
- Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - G Moreno-Bueno
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - L Sanz
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - J Aragones
- Research Unit, Hospital Universitario Santa Cristina, Research Institute Princesa, Autonomous University of Madrid, Madrid, Spain
| | - A Harris
- Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - O Volpert
- Urology Department, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - B Jimenez
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
| | - L del Peso
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), Madrid, Spain
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, Madrid, Spain
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Fossi MC, Panti C, Marsili L, Maltese S, Coppola D, Jimenez B, Muñoz-Arnanz J, Finoia MG, Rojas-Bracho L, Urban RJ. Could feeding habit and migratory behaviour be the causes of different toxicological hazard to cetaceans of Gulf of California (Mexico)? Environ Sci Pollut Res Int 2014; 21:13353-66. [PMID: 24510600 DOI: 10.1007/s11356-014-2574-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 01/20/2014] [Indexed: 05/27/2023]
Abstract
In this work, a suite of diagnostic biomarkers was applied to seven cetacean species to evaluate the role of the feeding habits and migratory behavior in the toxicological status of these species from the Gulf of California, Mexico. We investigate the interspecific differences in cytochrome P450 1A1 and 2B (CYP1A1 and CYP2B, respectively), aryl hydrocarbon receptor and E2F transcription factor 1 and the contaminants levels [organochlorine compounds, polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs)] in four odontocete species (common bottlenose dolphin, long-beaked common dolphin, sperm whale and killer whale) and three mysticete species (blue whale, fin whale, and Bryde's whale) using skin biopsy. Differences in contaminant levels and molecular biomarker responses between the odontocete and mysticete species have been pointed out. The canonical discriminant analysis on principal component analysis factors, performed to reveal clustering variables, shows that odontocete are characterised by the highest levels of lipophilic contaminants compared to the mysticete, with the highest levels of polychlorinated biphenyls, dichlorodiphenyltrichloroethanes and PBDEs detected in killer whale and the lowest levels in Bryde's whale. The biomarker data show interspecific differences amongst the seven species, revealing highest CYP1A and CYP2B protein levels in the mysticete fish-eating species (Bryde's whale). In conclusion, three main factors seem to regulate the biomarker responses in these species: (a) the inductive ability of persistent organic pollutants and PAHs; (b) the different evolutionary process of the two CYPs related to the different feeding habits of the species; (c) the migratory/resident behaviour of the mysticete species in this area.
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Affiliation(s)
- M C Fossi
- Department of Environmental, Physical and Earth Sciences, University of Siena, Via Mattioli 4, Siena, Italy,
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Lara LF, Erim T, Schneider A, Palekar N, Jimenez B, Murchie B, Pimentel RR, Charles RJ. Initial experience with a variable width and extreme tip angulation colonoscope. Tech Coloproctol 2014; 18:1173-5. [PMID: 25332131 DOI: 10.1007/s10151-014-1223-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 09/27/2014] [Indexed: 11/28/2022]
Affiliation(s)
- L F Lara
- Department of Gastroenterology, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd., Weston, FL, 33331, USA,
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Basu B, Roda-Perez D, Wong H, Sathiyayogan N, Parmar M, Turner A, Swales K, Stimpson S, Hall E, Hategan M, Garcia-Corbacho J, Yap T, Molife L, Jimenez B, Banerjee S, Kaye S, De Bono J, Banerji U. Phase I Multicentre Tax-Torc Trial of the Dual Mtorc1/2 Inhibitor Azd2014 (A) Plus Weekly Paclitaxel (P) in Patients (Pts) with Solid Tumours (Crukd/12/013). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu331.28] [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: 11/14/2022] Open
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12
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Pajares B, Perez-Villa L, Trigo JM, Toledo MD, Álvarez M, Jimenez B, Medina JA, de Luque V, Jerez JM, Alba E. Concurrent radiotherapy plus epidermal growth factor receptor inhibitors in patients with human papillomavirus-related head and neck cancer. Clin Transl Oncol 2013; 16:418-24. [DOI: 10.1007/s12094-013-1099-9] [Citation(s) in RCA: 6] [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: 04/25/2013] [Accepted: 07/29/2013] [Indexed: 10/26/2022]
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13
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Ferroni E, Camilloni L, Jimenez B, Furnari G, Borgia P, Guasticchi G, Giorgi Rossi P. How to increase uptake in oncologic screening: a systematic review of studies comparing population-based screening programs and spontaneous access. Prev Med 2012; 55:587-96. [PMID: 23064024 DOI: 10.1016/j.ypmed.2012.10.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [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: 05/16/2012] [Revised: 09/10/2012] [Accepted: 10/02/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cervical, breast and colorectal cancer (CRC) screenings are universally recommended interventions. High coverage of the target population represents the most important factor in determining their success. This systematic review aimed at assessing the effectiveness of population-based screening programs in increasing coverage compared to spontaneous access. METHODS Electronic databases and national and regional websites were searched. We included all studies on interventions aimed at increasing screening participation published between 1999 and 2009; for those published before, we consulted the Jepson et al. review (2000). We compared spontaneous access (including no intervention) vs population-based screening programs actively inviting the target population. Among the latter, we compared GP-based vs invitation letter-based interventions. RESULTS The invitation letter vs no intervention showed significantly more participation (RR=1.60 95%CI 1.33-1.92; RR=1.52 95%CI 1.28-1.82; RR=1.15 95%CI 1.12-1.19, for breast, cervical and CRC screenings, respectively). GP-based interventions, although more heterogeneous, showed a significant effect when compared with no intervention for breast (RR=1.74 95%CI 1.25-2.43), but not for cervical and CRC. No significant differences were found between invitation letter-based and GP-based organization (RR=0.99 95%CI 0.94-1.05; RR=1.08 95%CI 0.99-1.17, for breast and cervical cancer, respectively). CONCLUSION Population-based programs are more effective than spontaneous screening in obtaining higher testing uptake. Both invitation letter-based and GP-based programs are effective.
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Affiliation(s)
- E Ferroni
- Laziosanità, Public Health Agency, Lazio Region, Rome, Italy
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Ribelles N, Perez-Villa L, Pajares B, Jerez JM, Vicioso L, Jimenez B, de LV, Franco L, Alvarez M, Perez-Rivas LG, Sanchez-Muñoz A, Gallego E, Marquez A, Hierro I, Alba E. P3-05-04: Changes in Recurrence Risk of Breast Cancer Intrisic Subtypes over Time. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-05-04] [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: 11/16/2022]
Abstract
Abstract
Background: Gene expression profiling and their immunohistochemistry-based surrogates have consistently revealed prognostically significant breast cancer (BC) subtypes: Luminal A (Lum A), Luminal B (Lum B), HER2, Basal-like (BL) and Triple negative phenotype-nonbasal (TNP-nb). In addition, there are clinical evidence that hazard of BC recurrence varies over time with two peaks of high risk at 18–24 and 60 months. This study compares the time-related patterns of recurrence within BC subtypes. Methods: Tissue microarrays were constructed from 937 early BC patients diagnosed and treated at our Hospital from 1982 to 2005 with available archival paraffin tissue blocks. BC subtypes were defined using an immunopanel of estrogen receptor, progesterone receptor, HER2, epidermal growth factor receptor, cytokeratin 5/6 and Ki67 by prespecified published methods. Univariate and multivariate analysis (Cox regression) were performed on progression-free survival. Smoothed curves for hazard rates (HR) were estimated by a Kernel-like smoothing procedure. The statistical analysis was done by using the R software environment.
Results: Cases were classified as follows: Lum A 46.8%, Lum B 25.2%, HER2 11.3%, BL 11.3%, TNP-nb 5.4%. None of the patients were treated with adjuvant trastuzumab. With a median follow up of 80 months age, tumor size, nodal status and intrinsic subtypes were independent prognostic factors. HER2 and BL show high and early peak in HR curves and decreasing sharply to 36 and 48 months respectively. HR in Lum A, Lum B and TNP-nb exhibit a smoother and nearly steady curve.
Conclusions: BC subtypes have distinct outcome but also displays different pattern of recurrence over time. These data might imply that pathways underlying early and late recurrences could be different. This additional information would suggest the convenience of considering different timings and duration of adjuvant treatments depending of BC subtypes, and also in the design of surveillance recommendations.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-05-04.
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Affiliation(s)
- N Ribelles
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - L Perez-Villa
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - B Pajares
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - JM Jerez
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - L Vicioso
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - B Jimenez
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - Luque V de
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - L Franco
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - M Alvarez
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - LG Perez-Rivas
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - A Sanchez-Muñoz
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - E Gallego
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - A Marquez
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - I Hierro
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
| | - E Alba
- 1Hospital Universitario Virgen de la Victoria, Malaga, Spain; Universidad de Malaga, Malaga, Spain
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Martinez-Poveda B, Gomez V, Alcaide-German M, Perruca S, Vazquez S, Alba LE, Casanovas O, Garcia-Bermejo ML, Peso L, Jimenez B. Non-invasive monitoring of hypoxia-inducible factor activation by optical imaging during antiangiogenic treatment in a xenograft model of ovarian carcinoma. Int J Oncol 2011; 39:543-52. [PMID: 21667025 DOI: 10.3892/ijo.2011.1074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Accepted: 05/16/2011] [Indexed: 11/05/2022] Open
Abstract
Targeting the hypoxia response pathway and angiogenesis are two promising therapeutic strategies for cancer treatment. Their use as single strategies has important limitations. Thus, development of combined regimens has become an important step toward improving therapeutic efficacy. Also, non-invasive monitoring of the response to targeted biological therapies, as well as determination of the optimal schedule for combination regimens has become an active field of research over the last five years, with relevance for both preclinical and clinical settings. Here, we used an optical imaging method to non-invasively monitor the functional changes in HIF activity in response to antiangiogenic treatment in a xenograft model of human ovarian carcinoma. A bioluminescent reporter construct containing nine copies of the hypoxia response element upstream of the luciferase gene (9xHRE-luciferase) was characterized in vitro in a panel of tumor cell lines and in vivo in a subcutaneous xenograft model of ovarian carcinoma by means of optical imaging. We showed that in OVCAR-3 subcutaneous xenografts, the most abrupt change in the HIF functional reporter occurs before the onset of massive tumor growth. However, this system failed to detect hypoxia induced upon antiangiogenic treatment due to the compensating effects of increased hypoxia and decreased tumor cell viability caused by imbalanced neovascularization vs. tumor expansion. Therefore, the readout based on HIF functional reporter could be conditioned by the dynamics of tumor growth and angiogenesis, which is highly variable depending on the tumor type, tumor model and stage of progression.
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Affiliation(s)
- B Martinez-Poveda
- Departamento de Bioquímica, Instituto de Investigaciones Biomédicas (CSIC-UAM), 28029 Madrid, Spain
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Jimenez B, Trigo Perez JM, Saez Medina MI, Quero Blanco C, Pajares B, Rueda A, Alba E. Efficacy and safety of weekly paclitaxel combined with cetuximab in the treatment of pretreated recurrent/metastatic head and neck cancer patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Pajares B, Trigo Perez JM, Toledo MD, Alvarez M, Perez-Villa L, Gonzalez-Hermoso C, Rueda A, Medina JA, Jimenez B, Jerez JM, Perez L, Alba E. Human papillomavirus (HPV)–related head and neck squamous cell carcinoma (HNSCC) and outcome after treatment with epidermal growth factor receptor inhibitors (EGFR inhib) plus radiotherapy (RT) versus conventional chemotherapy (CT) plus RT. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5528] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Ribelles N, Perez-Villa L, Pajares B, Jerez JM, Vicioso L, Jimenez B, de Luque V, Franco L, Alvarez M, Perez-Rivas LG, Sanchez-Muñoz A, Gallego E, Marquez A, Hierro I, Alba E. Recurrence risk of breast cancer intrinsic subtypes over time. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e21047] [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: 11/20/2022] Open
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Fossi M, Urban J, Maltese S, Mazzi L, Coppola D, Casini S, Panti C, Torres C, Rojas-Bracho L, Jimenez B, Muñoz J, Marsili L. Inter- and intraspecies differences in biomarker responses and contaminant levels in two mysticete species (Balaenoptera physalus and Balaenoptera edeni) of Gulf of California (Mexico) and Mediterranean Sea. Comp Biochem Physiol A Mol Integr Physiol 2010. [DOI: 10.1016/j.cbpa.2010.06.062] [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: 10/19/2022]
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Moreno de la Gándara A, Palacios A, Orgaz J, Jimenez B, Blanco F, Palmero I. 679 Functional impact of cancer-associated mutations in the tumour suppressor protein ING4. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71476-2] [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: 11/28/2022] Open
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Godfrey S, Labhasetwar P, Wate S, Jimenez B. Safe greywater reuse to augment water supply and provide sanitation in semi-arid areas of rural India. Water Sci Technol 2010; 62:1296-1303. [PMID: 20861543 DOI: 10.2166/wst.2010.414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Water reuse is recognized as a tool to increase water supply in peri-urban areas of semi-arid and arid regions of the world. However, it is an option rarely explored for rural areas in developing countries, and has not been documented extensively in the scientific literature. This paper presents results from 6 greywater reuse systems which were built with the objective to augment water supply and to provide sanitation in rural low income areas of Madhya Pradesh, India. The systems are based on reclaiming greywater from bathing for the use in toilet flushing and kitchen garden irrigation. The reuse systems were implemented based on the scientific rationale presented in the WHO (2006) guidelines. The paper presents evidence from the operation and evaluation of the greywater treatment plants under field conditions between 2005 and 2008. The paper concludes that greywater is a highly cost effective solution for water scarcity. In this study, reusing greywater resulted in a 60% increase in water availability, a reduction in open defecation and a fourfold increase in food availability.
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Affiliation(s)
- S Godfrey
- UNICEF Mozambique, 1440 Ave do Zimbabwe, Mozambique.
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Trujillo J, Barrios JA, Jimenez B. Effect of peracetic acid, ultraviolet radiation, nanofiltration-chlorine in the disinfection of a non conventional source of water (Tula Valley). Water Sci Technol 2008; 57:621-627. [PMID: 18360005 DOI: 10.2166/wst.2008.181] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Water supply for human consumption requires certain quality that reduces health risks to consumers. In this sense, the process of disinfection plays an important role in the elimination of pathogenic microorganisms. Even though chlorination is the most applied process based on its effectiveness and cost, its application is being questioned considering the formation of disinfection by-products (DBPs). Therefore, alternative disinfectants are being evaluated and some treatment processes have been proposed to remove DBPs precursors (organic matter. This paper reports the results of disinfection of a non conventional source of water (aquifer recharged unintentionally with raw wastewater) with peracetic acid (PAA) and ultraviolet radiation (UV) as well as nanofiltration (NF) followed by chlorination to produce safe drinking water. The results showed that a dose of 2 mg/L PAA was needed to eliminate total and faecal coliforms. For UV light, a dose of 12.40 mWs/cm2 reduced total and faecal coliforms below the detection limit. On the other hand, chlorine demand of water before NF was 1.1-1.3 mg/L with a trihalomethane formation potential (THMFP) of 118.62 microg/L, in contrast with chlorination after NF where the demand was 0.5 mg/L and THMFP of 17.64 microg/L. The recommended scheme is nanofiltration + chlorination.
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Affiliation(s)
- J Trujillo
- Instituto de Ingeniería, UNAM, Ciudad Universitaria, Apartado Postal 70-472, 04510, Coyoacán, México, D.F. México.
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Abstract
In the new version of the World Health Organization (WHO), water reuse guidelines helminth ova are considered one of the main target pollutants to be removed from wastewater reuse for agriculture and aquaculture purposes. In spite of this, along with the fact that helminth ova have been considered the main health risk to wastewater reuse for agriculture for at least 20 years, relatively little research has been done to control helminth ova in the wastewater treatment field. This paper addresses (1) characteristics of helminth ova and differences with microorganisms; (2) the most frequent helminth ova genus found in wastewater; (3) helminth ova content in developed and developing countries wastewater; (4) reasons why conventional disinfection methods cannot be applied; (5) main removal mechanisms; and (6) processes that in practice have effectively removed or inactivated helminth ova.
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Affiliation(s)
- B Jimenez
- Treatment and Reuse Group; Institute of Engineering, UNAM, Apdo Postal 70472, 04510 Coyoacan DF, Mexico.
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Fernandez-Garcia NI, Volpert OV, Jimenez B. Pigment epithelium-derived factor as a multifunctional antitumor factor. J Mol Med (Berl) 2006; 85:15-22. [PMID: 17106733 DOI: 10.1007/s00109-006-0111-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 07/14/2006] [Accepted: 08/11/2006] [Indexed: 01/03/2023]
Abstract
The design of new therapeutic strategies for cancer treatment is based on the combination of drugs directed against different tumor compartments, including the tumor cells themselves and components of the stroma, such as the tumor vasculature. Indeed, several antiangiogenic compounds have entered clinical trials for use alone or in combination with conventional cytotoxic drugs. Pigment epithelium-derived factor (PEDF) is a multifunctional natural peptide with complex neurotrophic, neuroprotective, antiangiogenic, and proapoptotic biological activities, any of which could potentially be exploited for therapeutic purposes. This review summarizes recent studies that reveal the antitumor potential of PEDF based on its antiangiogenic properties and its newly discovered direct antitumor effects, which involve the induction of differentiation or apoptosis in tumor cells. We also discuss possible therapeutic applications of PEDF, based on these mechanistic insights and on the identification of functional domains that retain specific biological activities.
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Affiliation(s)
- N I Fernandez-Garcia
- Departamento de Bioquimica, Facultad de Medicina, Instituto de Investigaciones Biomedicas CSIC-UAM, Arturo Duperier 4, 28029, Madrid, Spain
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Maya C, Jimenez B, Schwartzbrod J. Comparison of techniques for the detection of helminth ova in drinking water and wastewater. Water Environ Res 2006; 78:118-24. [PMID: 16566519 DOI: 10.2175/106143005x89571] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Many countries use wastewater for irrigation. The World Health Organization established, as reuse guidelines, a maximum value of 1 helminth ovum/L for irrigation. Various techniques for enumerating helminth ova in water have been published. To determine the most adequate method for Mexico, four techniques were compared: the U.S. Environmental Protection Agency (U.S. EPA), membrane-filter, Leeds I, and Faust. Two types of water were used: drinking water and municipal wastewater effluent. Sensitivity, discrimination coefficients, precision, recovery efficiency, and cost were determined. In addition, several unseeded wastewater samples were analyzed. For drinking water, U.S. EPA and the membrane-filter techniques demonstrated comparable results; however, when wastewater was used, the membrane technique showed some deficiencies. Because the U.S. EPA technique may be used for samples with both high and low solids content, allows for the recovery of helminth ova with different specific gravities, and has the lowest total cost, it was selected as the best technique.
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Affiliation(s)
- C Maya
- National Autonomous University of Mexico, D F Mexico.
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Abstract
This paper presents the microbial risks associated with the reuse of Ecosan sludge in agriculture. Sludge from KwaZulu Natal Province in South Africa with a helminth ova content of 30 HO/g TS, faecal coliforms of 10(6) CFU/g TS, faecal streptococci of 10(6) CFU/g TS and Salmonella spp. of 10(5) CFU/g TS was used for this purpose. Applying different rates of sludge to spinach and carrots resulted in an increase in bacterial and helminth ova counts in crops as the quantity of sludge increased. The helminth ova content in crops was always greater in leaves than in stems, with a content varying from 2 to 15 HO/g TS for spinach with sludge application rates of 0-37.5 ton/ha and from 2-8 HO/g TS for carrot crops with sludge application rates varying from 0-35 ton/ha. Nevertheless, viability in crops was 20-25%, reducing the risk of disease. Consequently, the development of an Ecosan sludge revalorisation standard is considered important. Some recommendations are made taking into account the characteristics of the sludge as well as conditions in rural areas.
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Affiliation(s)
- B Jimenez
- Engineering Institute, UNAM Apdo. Postal 70472; 04510 Coyoacan, DF Mexico.
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Chavez A, Maya C, Jimenez B. Particle size distribution to design and operate an APT process for agricultural wastewater reuse. Water Sci Technol 2006; 53:43-9. [PMID: 16752763 DOI: 10.2166/wst.2006.206] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Total suspended solids is a parameter commonly used to operate and design coagulation-flocculation processes. Nevertheless, their application for an advanced primary treatment (a high performance but low dose demand coagulation processes coupled with a high rate sedimentator, sometimes called enhanced primary treatment) is not the best option to produce an effluent for agricultural irrigation. This paper compares the best operating conditions obtained using the TSS or the PSD (particle size distribution) as parameters to follow the efficiency. The treatment objective was to remove particles >20 microm, in such conditions that the effluent can contain organic matter and nutrients necessary for crops with a reduced number of helminth ova (with sizes between 20 to 80 microm). Using the TSS as parameter, the best coagulation (460 s(-1), 60 s contact time and 300 micromolAl/L) and flocculation (20 s(-1) with 15 min) conditions produced an effluent with 1.2 HO/L. To obtain a similar results but using operating conditions determined with the PSD at a three times lower coagulant dose can be employed (diminishing operating costs and reducing the quantity of sludge produced), and a reduction on energy consumption of around eight times can be reached. Best operating conditions defined using the PSD (160 s(-1), 60 s contact time and 100 micromolAl/L) produced an effluent with <0.4 HO/L.
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Affiliation(s)
- A Chavez
- Institute of Engineering, Group: Treatment and Reuse, UNAM, Ciudad Universitaria, Coyoacán, Mexico City DF.
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Pettersson A, van Bavel B, Engwall M, Jimenez B. Polybrominated diphenylethers and methoxylated tetrabromodiphenylethers in cetaceans from the Mediterranean Sea. Arch Environ Contam Toxicol 2004; 47:542-550. [PMID: 15499505 DOI: 10.1007/s00244-004-3200-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Eight tetrabrominated to hexabrominated diphenylethers were present at ppb levels in liver from cetaceans found stranded on the beaches of the Mediterranean Sea, Italy. The highest concentration was found in striped dolphin (sum polybrominated diphenyl ethers [PBDE] 8133 ng/g l.w.) and the lowest concentration in bottlenose dolphin (sum PBDE 66 ng/g lipid weight [l.w.]). The predominant congener in all samples was 2,2',4,4'-tetraBDE (PBDE # 47) followed by, in decreasing order, the pentaPBDE # 99 and 100 and the hexaPBDE # 154 and 153. In 12 of the 14 analyzed samples, 3 different methoxylated PBDEs (MeO-PBDE # 1, 2, and 3) were detected at semiquantitatively calculated concentration ranges of 2 to 14 ng/g l.w.; 5 to 167 ng/g l.w.; and 7 to 628 ng/g l.w., respectively. In addition, several unidentified bromine compounds were seen when screening the samples in negative-chemical ionization (NCI) mode monitoring m/z 79 and 81, which illustrates the importance of running both electron-impact ionization and NCI when analyzing environmental samples. Electron-impact ionization is more specific for monitoring the molecular ion compared with NCI, which might overestimate the concentration of certain PBDE congeners.
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Affiliation(s)
- A Pettersson
- Man-Technology-Environment Research Centre, Department of Natural Sciences, Orebro University, 701 82, Sweden.
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Loos-Neskovic C, Ayrault S, Badillo V, Jimenez B, Garnier E, Fedoroff M, Jones D, Merinov B. Structure of copper-potassium hexacyanoferrate (II) and sorption mechanisms of cesium. J SOLID STATE CHEM 2004. [DOI: 10.1016/j.jssc.2004.01.018] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chavez A, Jimenez B, Maya C. Particle size distribution as a useful tool for microbial detection. Water Sci Technol 2004; 50:179-186. [PMID: 15344789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Worldwide, raw or treated wastewater is used for irrigation. However, this practice implies that the microbial content must be controlled. Unfortunately, detection techniques for microorganisms are costly, time consuming, and require highly trained personnel. For these reasons, this study used particle size distribution to measure the microbial quality of wastewater through correlations between the number or volume of particles and the concentration of fecal coliforms, Salmonella spp. and helminth ova. Such correlations were obtained for both raw and chemically treated wastewater. The best fit was the one for helminth ova, which applies for both the influent and effluent and also for all the coagulants involved. This technique allows the on-line quantification of helminth ova at a cost of US$3 and it takes only 5 minutes, instead of the US$70 and 5 days for the standard technique. With respect to the coagulants applied, their behavior is different only for particles smaller than 8 microm, and thus this value is considered as the critical size for this particular treatment. The best coagulant was the aluminium polychloride. In addition, this work establishes the distribution of COD, TSS, nitrogen, and phosphorous for particles smaller and larger than 20 microm.
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Affiliation(s)
- A Chavez
- Engineering Institute Group, Treatment and Reuse, UNAM, Ciudad Universitaria, Coyoacan 04510 Mexico City, DF.
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31
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Jimenez B, Chávez A. Quality assessment of an aquifer recharged with wastewater for its potential use as drinking source: "El Mezquital Valley" case. Water Sci Technol 2004; 50:269-276. [PMID: 15344801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Mexico City, with a population of 18 million, has been sending its wastewater for more than 100 years to the Tula Valley where it is used to irrigate 90,000 ha. Due to the large wastewater volume (60 m3/s) sent through unlined channels, combined with the use of very high irrigation rates, artificial recharge of the local aquifer has been occurring. This recharge is estimated in more than 25 m3/s. As a consequence, the water table has raised and several springs have appeared in the last decades with flows between 100 to 600 L/s. These springs and several wells are the water sources in the region. An evaluation of the Tula Valley aquifer quality was performed to analyze the use of such water as source of drinking water for Mexico City. The work is divided into 5 individual projects: (a) drinking water quality in the Tula Valley; (b) water availability in the Tula Valley; (c) wastewater treatment due to its use for irrigation, (d) use of membrane processes to treat groundwater; and (d) biota developed in the new surface water reservoirs. Results show that it is feasible to use this reclaimed water as drinking source.
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Affiliation(s)
- B Jimenez
- Treatment and Reuse Group, Institute of Engineering, UNAM Apdo Postal 70-472, Coyoacan 04510 Mexico, DF, Mexico.
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32
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Jimenez B, Barrios JA, Mendez JM, Diaz J. Sustainable sludge management in developing countries. Water Sci Technol 2004; 49:251-258. [PMID: 15259962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Worldwide, unsanitary conditions are responsible for more than three million deaths annually. One of the reasons is the low level of sanitation in developing countries. Particularly, sludge from these regions has a high parasite concentration and low heavy metal content even though the available information is limited. Different issues needed to achieve a sustainable sludge management in developing nations are analysed. Based on this analysis some conclusions arise: sludge management plays an important role in sanitation programs by helping reduce health problems and associated risks; investments in sanitation should consider sludge management within the overall projects; the main restriction for reusing sludge is the high microbial concentration, which requires a science-based decision on the treatment process, while heavy metals are generally low; adequate sludge management needs the commitment of those sectors involved in the development and enforcement of the regulations as well as those that are directly related to its generation, treatment, reuse or disposal; current regulations have followed different approaches, based mainly on local conditions, but they favour sludge reuse to fight problems like soil degradation, reduced crop production, and the increased use of inorganic fertilizers. This paper summarises an overview of these issues.
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Affiliation(s)
- B Jimenez
- Institute of Engineering, National University of Mexico (UNAM), Apartado Postal 70-472, Coyoacan 04510, Mexico, D. F. Mexico.
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Mendez JM, Jimenez B, Maya C. Disinfection kinetics of pathogens in physicochemical sludge treated with ammonia. Water Sci Technol 2004; 50:67-74. [PMID: 15580996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Ammonia is a disinfectant which can diffuse through the membrane of highly resistant structures like helminth ova. Thus, it can be considered an alternative disinfectant of wastewater sludge with high pathogenic content. In this study, the kinetic parameters of the Hom model were used to describe the inactivation with ammonia of faecal coliforms, Salmonella spp. and viable helminth ova. These were obtained in processes considering the addition of ammonia alone as well as for ammonia combined with an increase in temperature. The sludge was sampled from a municipal wastewater treatment plant using an APT (Advanced Primary Treatment) or CEP (Chemical Enhanced Primary) process. With 20% w/w of ammonia, 7 logs of faecal coliforms, 6 logs of Salmonella spp., and 83% of viable helminth ova were reduced in 2 hours contact time. To eliminate 100% of the helminth ova from samples having 88-132 ova/g TS it was needed to combine 20% of ammonia with 50 degrees C. The analysis of parameters k, n and m indicate higher resistance to inactivation of helminth ova compared to bacteria and a better performance of the ammonia process than lime stabilization to inactivate microorganisms. In addition, ammonia increased the agricultural value of the biosolids produced.
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Affiliation(s)
- J M Mendez
- Orizaba Institute of Technology (ITO), 852 Tecnológico, Zapata 94320, Orizaba, Mexico.
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Gillis P, Savla U, Volpert OV, Jimenez B, Waters CM, Panos RJ, Bouck NP. Keratinocyte growth factor induces angiogenesis and protects endothelial barrier function. J Cell Sci 1999; 112 ( Pt 12):2049-57. [PMID: 10341222 DOI: 10.1242/jcs.112.12.2049] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Keratinocyte growth factor (KGF), also called fibroblast growth factor-7, is widely known as a paracrine growth and differentiation factor that is produced by mesenchymal cells and has been thought to act specifically on epithelial cells. Here it is shown to affect a new cell type, the microvascular endothelial cell. At subnanomolar concentrations KGF induced in vivo neovascularization in the rat cornea. In vitro it was not effective against endothelial cells cultured from large vessels, but did act directly on those cultured from small vessels, inducing chemotaxis with an ED50 of 0.02-0.05 ng/ml, stimulating proliferation and activating mitogen activated protein kinase (MAPK). KGF also helped to maintain the barrier function of monolayers of capillary but not aortic endothelial cells, protecting against hydrogen peroxide and vascular endothelial growth factor/vascular permeability factor (VEGF/VPF) induced increases in permeability with an ED50 of 0.2-0.5 ng/ml. These newfound abilities of KGF to induce angiogenesis and to stabilize endothelial barriers suggest that it functions in microvascular tissue as it does in epithelial tissues to protect them against mild insults and to speed their repair after major damage.
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Affiliation(s)
- P Gillis
- Department of Microbiology-Immunology, R. H. Lurie Cancer Center, Northwestern University Medical School, Chicago, IL 60611, USA
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Loos-Neskovic C, Vidal-Madjar C, Jimenez B, Pantazaki A, Federici V, Tamburini A, Fedoroff M, Persidou E. A Copper Hexacyanoferrate/Polymer/Silica Composite as Selective Sorbent for the Decontamination of Radioactive Caesium. ACTA ACUST UNITED AC 1999. [DOI: 10.1524/ract.1999.85.34.143] [Citation(s) in RCA: 9] [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] [Indexed: 11/24/2022]
Affiliation(s)
- C. Loos-Neskovic
- Laboratoire P. Süe (C.N.R.S.-C.E.A.), C. E. Saclay, 91191 Gif-sur-Yvette, France
| | - C. Vidal-Madjar
- Laboratoire de Recherche sur les Polymères (C.N.R.S.), 2 nie Henry Dunant, 94320 Thiais, France
| | - B. Jimenez
- Laboratoire P. Süe (C.N.R.S.-C.E.A.), C. E. Saclay, 91191 Gif-sur-Yvette, France
| | - A. Pantazaki
- Laboratoire P. Süe (C.N.R.S.-C.E.A.), C. E. Saclay, 91191 Gif-sur-Yvette, France
| | - V. Federici
- SEP/SEATN (CEA) Cadarache, 13108 Saint Paul Lez Durance, France
| | - A. Tamburini
- SEP/SEATN (CEA) Cadarache, 13108 Saint Paul Lez Durance, France
| | - M. Fedoroff
- Centre d'Etudes de Chimie Metallurgique (C.N.R.S.), 15, rue Georges Urbain, 94407 Vitry-sur-Seine, France
| | - E. Persidou
- Centre d'Etudes de Chimie Metallurgique (C.N.R.S.), 15, rue Georges Urbain, 94407 Vitry-sur-Seine, France
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Lucas R, Holmgren L, Garcia I, Jimenez B, Mandriota SJ, Borlat F, Sim BK, Wu Z, Grau GE, Shing Y, Soff GA, Bouck N, Pepper MS. Multiple forms of angiostatin induce apoptosis in endothelial cells. Blood 1998; 92:4730-41. [PMID: 9845539] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Angiostatin is a circulating inhibitor of angiogenesis generated by proteolytic cleavage of plasminogen. In this study we have used recombinant human and murine angiostatins (kringles 1-4) as well as native human angiostatin (prepared by elastase digestion of plasminogen [kringles 1-3] or by plasmin autocatalysis in the presence of a free sulfhydryl donor [kringles 1-4]). We report that angiostatin reduces endothelial cell number in a 4-day proliferation assay without affecting cell cycle progression into S-phase (as determined by bromodeoxyuridine labeling). This suggested that the reduction in cell number in the proliferation assay might in part be due to cytotoxicity. This was confirmed by the observation that ethidium homodimer incorporation (a measure of plasma membrane integrity) into endothelial cells was increased by angiostatin in a manner similar to that seen with tumor necrosis factor- (TNF-) and transforming growth factor-beta1 (TGF-beta1), both of which induce apoptosis in endothelial cells. In contrast to TNF- and TGF-beta1, angiostatin did not induce cytotoxicity in human MRC-5 fibroblast, rat smooth muscle, canine MDCK epithelial, or murine B16-F10 melanoma cell lines. Angiostatin-induced apoptosis was confirmed by endothelial cell nuclear acridine orange incorporation as well as by annexin V and TUNEL staining. These in vitro findings point to endothelial cell apoptosis as a mechanism for the antiangiogenic effect of angiostatin in vivo.
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Affiliation(s)
- R Lucas
- Laboratory of Immunopathology of Intensive Care, Department of Anesthesiology, Geneva University Hospital, Geneva, Switzerland
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Fossi MC, Savelli C, Marsili L, Casini S, Jimenez B, Junin M, Castello H, Lorenzani JA. Skin biopsy as a nondestructive tool for the toxicological assessment of endangered populations of pinnipeds: preliminary results on mixed function oxidase in Otaria flavescens. Chemosphere 1997; 35:1623-1635. [PMID: 9353903 DOI: 10.1016/s0045-6535(97)00244-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The aim of this study was to develop and validate a method for assessing the toxicological risk of endangered populations of pinnipeds based on a nondestructive biological tool, the skin biopsy specimen. Skin biopsies can be obtained from pinnipeds by anaesthetising the animals and taking a small amount of skin in the anterior flipper area, or by shooting a biopsy dart with a crossbow. Skin biopsy material is suitable for a wide range of chemical and biomarker analysis. Organochlorines and polycyclic aromatic hydrocarbons can be analysed in subcutaneous fat and MFO activity (BPMO), Cyt.P450 isoforms, and DNA damage can be detected in epidermis.
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Affiliation(s)
- M C Fossi
- Department of Environmental Biology, University of Siena, Italy.
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Marsili L, Fossi MC, Casini S, Savelli C, Jimenez B, Junin M, Castello H. Fingerprint of polycyclic aromatic hydrocarbons in two populations of southern sea lions (Otaria flavescens). Chemosphere 1997; 34:759-770. [PMID: 9569942 DOI: 10.1016/s0045-6535(97)00003-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The fingerprint of 14 polycyclic aromatic hydrocarbons (PAHs) was investigated in biopsy, fur, blood, liver and faeces of live and dead specimens of two Argentinian population of southern sea lion (Otaria flavescens). One colony lives in Mar del Plata harbour which is particularly polluted with petroleum, the second (control) colony lives at Punta Bermeja (Patagonia). The highest concentrations of the five carcinogenic PAHs were found in the Mar del Plata sea lions.
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Affiliation(s)
- L Marsili
- Dipartimento di Biologia Ambientale, University of Siena, Italy
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Garcia-Pachon E, Padilla-Navas I, Sanchez JF, Jimenez B, Custardoy J. Pleural fluid to serum cholinesterase ratio for the separation of transudates and exudates. Chest 1996; 110:97-101. [PMID: 8681674 DOI: 10.1378/chest.110.1.97] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [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: 02/01/2023] Open
Abstract
STUDY OBJECTIVE To evaluate the usefulness of two new parameters for separating pleural transudates and exudates: pleural fluid cholinesterase level and pleural fluid to serum cholinesterase ratio, and to compare the results with the other well-established criteria. DESIGN Prospective evaluation of the patients referred for diagnostic thoracentesis. SETTING Pulmonary sections of a community hospital and a university hospital. PATIENTS One hundred ninety-three consecutive patients. Forty were excluded for different reasons. MEASUREMENTS The following criteria for separating the pleural effusions in transudates and exudates were analyzed: Light's criteria, the pleural fluid cholesterol level, the pleural fluid to serum cholesterol ratio, the pleural fluid cholinesterase level, and the pleural fluid to serum cholinesterase ratio. RESULTS One hundred fifty-three patients had conditions diagnosed. Thirty-five were classified as having transudates and 118 as exudates. The percentage of effusions misclassified by each parameter was as follows: Light's criteria, 7.8%; pleural fluid cholesterol, 7.8%; pleural fluid to serum cholesterol ratio, 6.5%; pleural fluid cholinesterase, 8.5%; and pleural fluid to serum cholinesterase ratio, 1.3%. CONCLUSIONS The pleural fluid to serum cholinesterase ratio is the most accurate criterion for separating pleural transudates and exudates. If further studies confirm our results, the cholinesterase ratio could be used as the first step in the diagnosis of pleural effusions.
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Affiliation(s)
- E Garcia-Pachon
- Seccion de Neumologia, Hospital Vega Baja, Orihuela-Alicante, Spain
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Gidekel M, Jimenez B, Herrera-Estrella L. The first intron of the Arabidopsis thaliana gene coding for elongation factor 1 beta contains an enhancer-like element. Gene 1996; 170:201-6. [PMID: 8666245 DOI: 10.1016/0378-1119(95)00837-3] [Citation(s) in RCA: 45] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Genomic and cDNA clones coding for elongation factor-1 beta (eEF-1 beta) from Arabidopsis thaliana (At) were isolated and characterized. eEF-1 beta was found to be encoded by a single-copy At gene. Chimeric genes fusing the promoter and the 5' untranslated region of the At eEF-1 beta gene to the gus reporter gene were constructed and used to study the expression of this gene in transgenic tobacco plants. Interestingly, it was found that the first intron of this gene is required for high levels of expression. Experiments using chimeric promoters showed that an enhancer-like element is present in the first intron of At eEF-1 beta. Gel-shift assays were used to demonstrate that this intron is specifically bound by putative transcription factors present in nuclear protein extracts.
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Affiliation(s)
- M Gidekel
- Departamento de Ingeniería Genética de Plantas, Centro de Investigación y de Estudios Avanzados del I.P.N., México
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Abstract
Levels of PCDDs, PCDFs and non-ortho PCBs are reported for fish oils available in Spain which are consumed by the population as a dietary supplement. Trace enrichment methodology based on the use of modified silica and activated carbon chromatography was combined with on-column extraction (FMS 100) to separate PCDDs, PCDFs and PCBs from lipid material. The extracts were further cleaned up on disposable Florisil columns and analysed by HRGC/HRMS (PCDD/F and non-ortho PCB fractions). Mean levels found in the samples were 10.50 ppt for total PCDDs and 9.95 ppt for total PCDFs. Calculated PCDD/F I-TEQ values were found to be 2.11 ppt on a lipid weight basis. Total mean levels found for co-planar PCBs (#77, 126 and 169) were 18.26 ppt and the calculated I-TEQ value was 0.31 ppt on a lipid weight basis.
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Affiliation(s)
- B Jimenez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, Madrid, Spain
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Clark JT, Jimenez B, Evans SL, Barrow R, Winfree M, Mrotek JJ. Cadmium-induced sexual dysfunction does not involve increased hepatic metabolism of testosterone nor increased circulating levels of corticosterone. Physiol Behav 1994; 56:975-81. [PMID: 7824600 DOI: 10.1016/0031-9384(94)90332-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Sexually experienced male rats were injected IP with 0, 0.3, 1.5, 3.0, or 6.0 mg/kg cadmium chloride. The highest dose was fatal within 48 h of injection. A dose-related deficit in erectile function was observed in ex copula tests 48 h after injection. Copulatory dysfunction was evident in mating tests 72 h after injection. Hepatic mixed function oxidase activity after 0.3 mg/kg injections was not different from controls, but was diminished by 50% in rats treated with 3.0 mg/kg. The higher cadmium doses (1.5 and 3.0 mg/kg) were associated with equivalent and marked reductions in circulating testosterone levels, and lesser decrements in circulating corticosterone levels. The rats treated with 1.5 or 3.0 mg/kg cadmium chloride lost weight (32 +/- 12 and 39 +/- 9 g, respectively). Relative decapsulated adrenal gland weights were markedly increased in rats treated with 3.0 mg/kg. These data indicate that exposure to cadmium is associated with alterations in sexual, hepatic, and adrenal function, with erectile dysfunction occurring at the lowest dose. The effects on copulatory behavior are especially striking because it requires some weeks for copulatory behavior to wane following castration.
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Affiliation(s)
- J T Clark
- Department of Physiology, Meharry Medical College, Nashville, TN 37208
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Mollinedo F, Perez-Sala D, Gajate C, Jimenez B, Rodriguez P, Lacal JC. Localization of rap1 and rap2 proteins in the gelatinase-containing granules of human neutrophils. FEBS Lett 1993; 326:209-14. [PMID: 8391995 DOI: 10.1016/0014-5793(93)81792-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The subcellular localization of rap proteins in resting human neutrophils was investigated by immunoblot analysis with specific anti-rap2 and anti-rap1 antibodies of the membrane proteins obtained from distinct subcellular fractions. Rap2 protein was mainly located in gelatinase-containing granules, whereas rap1 protein was detected both in gelatinase-containing granules and in fractions enriched in plasma membrane. Neither rap1 nor rap2 proteins were found in the cytosol or in azurophilic granules. Rap2B, not rap2A, appeared to be the major rap2 protein in human neutrophils. The identification and subcellular localization of rap1 and rap2 proteins at the membranes of gelatinase-rich granules suggest that these proteins could play a role in the regulation of the rapid and selective mobilization of gelatinase-containing granules in human neutrophils.
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Affiliation(s)
- F Mollinedo
- Centro de Investigaciones Biológicas, C.S.I.C., Madrid, Spain
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Abstract
Ras oncogenes encode 21-kDa (p21s) GTP binding proteins that are capable of transforming immortalized cells in culture. The ras-related rap1A/Krev-1/smgp21A protein, that exhibits a similar structural organization and contains the same effector domain as ras proteins, antagonizes ras-transformation. In order to investigate whether the closely related (61% identical) rap2 protein had similar capacities, the corresponding cDNA was inserted into constitutive as well as inducible mammalian expression vectors. Neither the wild-type, nor an "activated" mutant carrying a glycine-to-valine substitution at position 12, had any transforming activity. Several independent lines of evidence demonstrate that the rap2 protein exhibits neither growth-promoting nor growth-inhibitory effects, and that its over-expression does not interfere with ras-induced transformation. Thus, in spite of their great similarities, the rap1A/Krev-1/smgp21A and rap2 proteins have distinct physiological properties.
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Affiliation(s)
- B Jimenez
- INSERM U-248 Faculté de Médecine Lariboisière-St. Louis, Paris, France
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Agullo L, Jimenez B, Aragón C, Giménez C. Beta-alanine transport in synaptic plasma membrane vesicles from rat brain. Efflux, exchange and stoichiometry. Eur J Biochem 1986; 159:611-7. [PMID: 3093232 DOI: 10.1111/j.1432-1033.1986.tb09929.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The efflux and exchange of beta-alanine were studied in synaptic plasma membrane vesicles from rat brain. The mechanism of beta-alanine translocation has been probed by comparing the ion dependence of net efflux to that of exchange. Dilution-induced efflux requires the simultaneous presence of internal sodium and chloride ions while influx is dependent on the presence of these two ions on the outside [Zafra, F., Aragón, M. C., Valdivieso, F. and Giménez, C. (1984) Neurochem Res. 9, 695-707]. These data show that the release of beta-alanine occurs via the carrier system and that it is cotransported with sodium and chloride ions. beta-Alanine efflux from the membrane vesicles is stimulated by external beta-alanine. This exchange does not require external sodium and chloride but it is dependent on the external concentration of beta-alanine. Half-maximal stimulation is obtained at a beta-alanine concentration similar to the Km for beta-alanine influx. Results of the direct measurements of the coupling of sodium and chloride to the transport of beta-alanine by using a kinetic approach allow us to propose a stoichiometry for the translocation cycle catalyzed by the beta-alanine transporter of three sodium ions and one chloride ion per beta-alanine zwitterion. To account for all the observed effects of external ions, beta-alanine concentrations and membrane potential on beta-alanine influx and efflux, a kinetic model of the Na+/Cl-/beta-alanine cotransport system is discussed.
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Campayo L, Jimenez B, Manzano T, Navarro P. Diazapolycyclic Compounds; XXV. Improved Synthesis of 6-Substituted 2,3-Dihydrobenzo[g]phthalazine-1,4-dione Derivatives. SYNTHESIS-STUTTGART 1985. [DOI: 10.1055/s-1985-31153] [Citation(s) in RCA: 4] [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: 10/27/2022]
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Jimenez B. Their home we share. J Pract Nurs 1975; 25:24-5, 36. [PMID: 1038457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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