1
|
Villalaín C, D'Antonio F, Flacco ME, Gómez-Montes E, Herraiz I, Deiros-Bronte L, Maskatia SA, Phillips AA, Contro E, Fricke K, Bhawna A, Beattie MJ, Moon-Grady AJ, Durand I, Slodki M, Respondek-Liberska M, Patel C, Kawamura H, Rizzo G, Pagani G, Galindo A. Diagnostic accuracy of prenatal ultrasound in coarctation of aorta: systematic review and individual participant data meta-analysis. Ultrasound Obstet Gynecol 2024; 63:446-456. [PMID: 38197327 DOI: 10.1002/uog.27576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/24/2023] [Accepted: 12/28/2023] [Indexed: 01/11/2024]
Abstract
OBJECTIVE To determine the diagnostic accuracy of prenatal ultrasound in detecting coarctation of the aorta (CoA). METHODS An individual participant data meta-analysis was performed to report on the strength of association and diagnostic accuracy of different ultrasound signs in detecting CoA prenatally. MEDLINE, EMBASE and CINAHL were searched for studies published between January 2000 and November 2021. Inclusion criteria were fetuses with suspected isolated CoA, defined as ventricular and/or great vessel disproportion with right dominance on ultrasound assessment. Individual participant-level data were obtained by two leading teams. PRISMA-IPD and PRISMA-DTA guidelines were used for extracting data, and the QUADAS-2 tool was used for assessing quality and applicability. The reference standard was CoA, defined as narrowing of the aortic arch, diagnosed after birth. The most commonly evaluated parameters on ultrasound, both in B-mode and on Doppler, constituted the index test. Summary estimates of sensitivity, specificity, diagnostic odds ratio (DOR) and likelihood ratios were computed using the hierarchical summary receiver-operating-characteristics model. RESULTS The initial search yielded 72 studies, of which 25 met the inclusion criteria. Seventeen studies (640 fetuses) were included. On random-effects logistic regression analysis, tricuspid valve/mitral valve diameter ratio > 1.4 and > 1.6, aortic isthmus/arterial duct diameter ratio < 0.7, hypoplastic aortic arch (all P < 0.001), aortic isthmus diameter Z-score of < -2 in the sagittal (P = 0.003) and three-vessel-and-trachea (P < 0.001) views, pulmonary artery/ascending aorta diameter ratio > 1.4 (P = 0.048) and bidirectional flow at the foramen ovale (P = 0.012) were independently associated with CoA. Redundant foramen ovale was inversely associated with CoA (P = 0.037). Regarding diagnostic accuracy, tricuspid valve/mitral valve diameter ratio > 1.4 had a sensitivity of 72.6% (95% CI, 48.2-88.3%), specificity of 65.4% (95% CI, 46.9-80.2%) and DOR of 5.02 (95% CI, 1.82-13.9). The sensitivity and specificity values were, respectively, 75.0% (95% CI, 61.1-86.0%) and 39.7% (95% CI, 27.0-53.4%) for pulmonary artery/ascending aorta diameter ratio > 1.4, 47.8% (95% CI, 14.6-83.0%) and 87.6% (95% CI, 27.3-99.3%) for aortic isthmus diameter Z-score of < -2 in the sagittal view and 74.1% (95% CI, 58.0-85.6%) and 62.0% (95% CI, 41.6-78.9%) for aortic isthmus diameter Z-score of < -2 in the three-vessel-and-trachea view. Hypoplastic aortic arch had a sensitivity of 70.0% (95% CI, 42.0-88.6%), specificity of 91.3% (95% CI, 78.6-96.8%) and DOR of 24.9 (95% CI, 6.18-100). The diagnostic yield of prenatal ultrasound in detecting CoA did not change significantly when considering multiple categorical parameters. Five of the 11 evaluated continuous parameters were independently associated with CoA (all P < 0.001) but all had low-to-moderate diagnostic yield. CONCLUSIONS Several prenatal ultrasound parameters are associated with an increased risk for postnatal CoA. However, diagnostic accuracy is only moderate, even when combinations of parameters are considered. © 2024 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- C Villalaín
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Complutense University, Madrid, Spain
- Instituto de Investigación del Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - F D'Antonio
- Department of Obstetrics and Gynaecology, University of Chieti, Chieti, Italy
| | - M E Flacco
- Department of Environmental and Preventive Sciences, University of Ferrara, Ferrara, Italy
| | - E Gómez-Montes
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Complutense University, Madrid, Spain
- Instituto de Investigación del Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - I Herraiz
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Complutense University, Madrid, Spain
- Instituto de Investigación del Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - L Deiros-Bronte
- Department of Pediatric Cardiology, La Paz Children's Hospital, Madrid, Spain
| | - S A Maskatia
- Division of Pediatric Cardiology, Stanford University School of Medicine, Palo Alto, CA, USA
| | - A A Phillips
- Division of Pediatric Cardiology, Stanford University School of Medicine, Palo Alto, CA, USA
| | - E Contro
- Department of Obstetrics and Gynecology, Fetal Medicine Unit, S. Orsola University Hospital, Bologna, Italy
| | - K Fricke
- Department of Clinical Sciences Lund, Pediatric Cardiology, Lund University, Skane University Hospital, Lund, Sweden
| | - A Bhawna
- Department of Pediatrics, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA, USA
| | - M J Beattie
- Division of Pediatric Cardiology, University of California San Francisco, San Francisco, CA, USA
| | - A J Moon-Grady
- Division of Pediatric Cardiology, University of California San Francisco, San Francisco, CA, USA
| | - I Durand
- Department of Pediatrics, Rouen University Hospital, Rouen, France
| | - M Slodki
- Medicine Faculty, Mazovian University in Plock, Plock, Poland
- Department of Prenatal Cardiology, Polish Mother's Memorial Hospital Research Institute in Lodz, Lodz, Poland
| | - M Respondek-Liberska
- Department for Diagnosis and Prevention of Congenital Malformations, Medical University of Lodz, Lodz, Poland
- Fetal Cardiology Department Polish Mother's Memorial Hospital, Lodz, Poland
| | - C Patel
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - H Kawamura
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - G Rizzo
- Department of Obstetrics and Gynecology, Fondazione Policinico Tor Vergata, Università di Roma Tor Vergata, Rome, Italy
| | - G Pagani
- Department of Obstetrics and Gynecology, ASST-Papa Giovanni XXIII, Maternal Fetal Medicine Unit, Bergamo, Italy
| | - A Galindo
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Complutense University, Madrid, Spain
- Instituto de Investigación del Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| |
Collapse
|
2
|
Bernet T, Wehbe M, Febra SA, Haslam AJ, Adjiman CS, Jackson G, Galindo A. Modeling the Thermodynamic Properties of Saturated Lactones in Nonideal Mixtures with the SAFT-γ Mie Approach. J Chem Eng Data 2024; 69:650-678. [PMID: 38352073 PMCID: PMC10859965 DOI: 10.1021/acs.jced.3c00358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/30/2023] [Indexed: 02/16/2024]
Abstract
The prediction of the thermodynamic properties of lactones is an important challenge in the flavor, fragrance, and pharmaceutical industries. Here, we develop a predictive model of the phase behavior of binary mixtures of lactones with hydrocarbons, alcohols, ketones, esters, aromatic compounds, water, and carbon dioxide. We extend the group-parameter matrix of the statistical associating fluid theory SAFT-γ Mie group-contribution method by defining a new cyclic ester group, denoted cCOO. The group is composed of two spherical Mie segments and two association electron-donating sites of type e1 that can interact with association electron-accepting sites of type H in other molecules. The model parameters of the new cCOO group interactions (1 like interaction and 17 unlike interactions) are characterized to represent target experimental data of physical properties of pure fluids (vapor pressure, single-phase density, and vaporization enthalpy) and mixtures (vapor-liquid equilibria, liquid-liquid equilibria, solid-liquid equilibria, density, and excess enthalpy). The robustness of the model is assessed by comparing theoretical predictions with experimental data, mainly for oxolan-2-one, 5-methyloxolan-2-one, and oxepan-2-one (also referred to as γ-butyrolactone, γ-valerolactone, and ε-caprolactone, respectively). The calculations are found to be in very good quantitative agreement with experiments. The proposed model allows for accurate predictions of the thermodynamic properties and highly nonideal phase behavior of the systems of interest, such as azeotrope compositions. It can be used to support the development of novel molecules and manufacturing processes.
Collapse
Affiliation(s)
- Thomas Bernet
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Malak Wehbe
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Sara A. Febra
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. Haslam
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Claire S. Adjiman
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Amparo Galindo
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| |
Collapse
|
3
|
Valsecchi M, Galindo A, Jackson G. Modeling Sorption of Hydrocarbons in Polyethylene with the SAFT-γ Mie Approach Combined with a Statistical-Mechanical Model to Describe Semicrystalline Polymers. Macromolecules 2023; 56:9952-9968. [PMID: 38161323 PMCID: PMC10753906 DOI: 10.1021/acs.macromol.3c01336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/26/2023] [Indexed: 01/03/2024]
Abstract
A recently developed statistical-mechanical model is applied systematically to estimate the fraction of tie-molecules (polymer chains linking different crystals directly or via entanglements) in semicrystalline polyethylene (PE) samples. The amorphous domains of the polymer are divided into constrained interlamellar domains and "free" outer-lamellar domains. A set of model parameters is assigned to each sample by correlating previous experimental measurements and minimizing the difference between the predicted solubility of pure hydrocarbons in the sample and the experimental values. We show that the sorption isotherms of multiple pure fluids in each sample can be described by a single parameter set, proving that the polymer-solute interactions (described accurately by the SAFT-γ Mie EoS) are decoupled from the sample-specific properties of the polymer. We find that ∼30% of the crystalline stems in the lamellae of PE are connected to tie-molecules, within the bounds suggested by previous theoretical and computational work. The transferability of the sample-specific parameters is assessed by predicting cosolubility effects and solubility at different temperatures, leading to good agreement with experimental data.
Collapse
Affiliation(s)
- Michele Valsecchi
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - Amparo Galindo
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - George Jackson
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| |
Collapse
|
4
|
Mazarico E, Meler E, Mendoza M, Herraiz I, Llurba E, De Diego R, Comas M, Boada D, González A, Bonacina E, Armengol-Alsina M, Moline E, Hurtado I, Torre N, Gomez-Roig MD, Galindo A, Figueras F. Mortality and severe neurological morbidity in extremely preterm growth-restricted fetuses. Ultrasound Obstet Gynecol 2023; 62:788-795. [PMID: 37325877 DOI: 10.1002/uog.26290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 05/23/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To develop a model for the prediction of adverse perinatal outcome in growth-restricted fetuses requiring delivery before 28 weeks in order to provide individualized patient counseling. METHODS This was a retrospective multicenter cohort study of singleton pregnancies with antenatal suspicion of fetal growth restriction requiring delivery before 28 weeks' gestation between January 2010 and January 2020 in six tertiary public hospitals in the Barcelona area, Spain. Separate predictive models for mortality only and mortality or severe neurological morbidity were created using logistic regression from variables available antenatally. For each model, predictive performance was evaluated using receiver-operating-characteristics (ROC)-curve analysis. Predictive models were validated externally in an additional cohort of growth-restricted fetuses from another public tertiary hospital with the same inclusion and exclusion criteria. RESULTS A total of 110 cases were included. The neonatal mortality rate was 37.3% and, among the survivors, the rate of severe neurological morbidity was 21.7%. The following factors were retained in the multivariate analysis as significant predictors of mortality: magnesium sulfate neuroprotection, gestational age at birth, estimated fetal weight, male sex and Doppler stage. This model had a significantly higher area under the ROC curve (AUC) compared with a model including only gestational age at birth (0.810 (95% CI, 0.730-0.889) vs 0.695 (95% CI, 0.594-0.795); P = 0.016). At a 20% false-positive rate, the model showed a sensitivity, negative predictive value and positive predictive value of 66%, 80% and 66%, respectively. For the prediction of the composite adverse outcome (mortality or severe neurological morbidity), the model included: gestational age at birth, male sex and Doppler stage. This model had a significantly higher AUC compared with a model including only gestational age at birth (0.810 (95% CI, 0.731-0.892) vs 0.689 (95% CI, 0.588-0.799); P = 0.017). At a 20% false-positive rate, the model showed a sensitivity, negative predictive value and positive predictive value of 55%, 63% and 74%, respectively. External validation of both models yielded similar AUCs that did not differ significantly from those obtained in the original sample. CONCLUSIONS Estimated fetal weight, fetal sex and Doppler stage can be combined with gestational age to improve the prediction of death or severe neurological sequelae in growth-restricted fetuses requiring delivery before 28 weeks. This approach may be useful for parental counseling and decision-making. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- E Mazarico
- Hospital Sant Joan de Déu, BCNatal, Barcelona, Spain
- Departament de Ciències Clíniques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0003, Instituto de Salud Carlos III, Madrid, Spain
| | - E Meler
- Hospital Clínic de Barcelona, Seu Maternitat, BCNatal, Barcelona, Spain
| | - M Mendoza
- Department of Obstetrics, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - I Herraiz
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
- Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0024, Instituto de Salud Carlos III, Madrid, Spain
| | - E Llurba
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0003, Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - R De Diego
- Hospital Hospital Germans Trias i Pujol, Badalona, Spain
| | - M Comas
- Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (U3PT), Sabadell, Spain
| | - D Boada
- Hospital Clínic de Barcelona, Seu Maternitat, BCNatal, Barcelona, Spain
| | - A González
- Hospital Sant Joan de Déu, BCNatal, Barcelona, Spain
| | - E Bonacina
- Department of Obstetrics, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - M Armengol-Alsina
- Department of Obstetrics, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - E Moline
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0003, Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - I Hurtado
- Hospital Hospital Germans Trias i Pujol, Badalona, Spain
| | - N Torre
- Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (U3PT), Sabadell, Spain
| | - M D Gomez-Roig
- Hospital Sant Joan de Déu, BCNatal, Barcelona, Spain
- Departament de Ciències Clíniques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0003, Instituto de Salud Carlos III, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
- Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin Network (RICORS), RD21/0012/0024, Instituto de Salud Carlos III, Madrid, Spain
| | - F Figueras
- Hospital Clínic de Barcelona, Seu Maternitat, BCNatal, Barcelona, Spain
| |
Collapse
|
5
|
Villalaín C, Moon-Grady AJ, Herberg U, Strainic J, Cohen JL, Shah A, Levi DS, Gómez-Montes E, Herraiz I, Galindo A. Prediction of postnatal circulation in pulmonary atresia/critical stenosis with intact ventricular septum: systematic review and external validation of models. Ultrasound Obstet Gynecol 2023; 62:14-22. [PMID: 36776132 DOI: 10.1002/uog.26176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 06/06/2023]
Abstract
OBJECTIVE A favorable postnatal prognosis in cases of pulmonary atresia/critical stenosis with intact ventricular septum (PA/CS-IVS) is generally equated with the possibility of achieving biventricular (BV) repair. Identification of fetuses that will have postnatal univentricular (UV) circulation is key for prenatal counseling, optimization of perinatal care and decision-making regarding fetal therapy. We aimed to evaluate the accuracy of published models for predicting postnatal circulation in PA/CS-IVS using a large internationally derived validation cohort. METHODS This was a systematic review of published uni- and multiparametric models for the prediction of postnatal circulation based on echocardiographic findings at between 20 and 28 weeks of gestation. Models were externally validated using data from the International Fetal Cardiac Intervention Registry. Sensitivity, specificity, predictive values, area under the receiver-operating-characteristics curves (AUCs) and proportion of cases with true vs predicted outcome were calculated. RESULTS Eleven published studies that reported prognostic parameters of postnatal circulation were identified. Models varied widely in terms of the main outcome (UV (n = 3), non-BV (n = 3), BV (n = 3), right-ventricle-dependent coronary circulation (n = 1) or tricuspid valve size at birth (n = 1)) and in terms of the included predictors (single parameters only (n = 6), multiparametric score (n = 4) or both (n = 1)), and were developed on small sample sizes (range, 15-38). Nine models were validated externally given the availability of the required parameters in the validation cohort. Tricuspid valve diameter Z-score, tricuspid regurgitation, ratios between right and left cardiac structures and the presence of ventriculocoronary connections (VCC) were the most commonly evaluated parameters. Multiparametric models including up to four variables (ratios between right and left structures, right ventricular inflow duration, presence of VCC and tricuspid regurgitation) had the best performance (AUC, 0.80-0.89). Overall, the risk of UV outcome was underestimated and that of BV outcome was overestimated by most models. CONCLUSIONS Current prenatal models for the prediction of postnatal outcome in PA/CS-IVS are heterogeneous. Multiparametric models for predicting UV and non-BV circulation perform well in identifying BV patients but have low sensitivity, underestimating the rate of fetuses that will ultimately have UV circulation. Until better discrimination can be achieved, fetal interventions may need to be limited to only those cases in which non-BV postnatal circulation is certain. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- C Villalaín
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, Complutense University, Madrid, Spain
- Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - A J Moon-Grady
- Department of Pediatrics, Division of Cardiology, University of California San Francisco, UCSF Benioff Children's Hospital, CA, USA
| | - U Herberg
- Klinik für Kinderkardiologie Universitätsklinikum, Aachen, Germany
| | - J Strainic
- Department of Pediatrics, Division of Pediatric Cardiology, The Congenital Heart Collaborative, Rainbow Babies and Children's Hospital, University Hospitals of Cleveland Medical Center, Case Western University, Cleveland, OH, USA
| | - J L Cohen
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - A Shah
- Division of Pediatric Cardiology, Morgan Stanley Children's Hospital of New York, Columbia University Irving Medical Center, New York, NY, USA
| | - D S Levi
- Division of Cardiology, UCLA Mattel Children's Hospital, University of California Los Angeles Medical School, Los Angeles, CA, USA
| | - E Gómez-Montes
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, Complutense University, Madrid, Spain
- Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - I Herraiz
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, Complutense University, Madrid, Spain
- Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, Complutense University, Madrid, Spain
- Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network), RD21/0012/0024, Madrid, Spain
| |
Collapse
|
6
|
Lee YS, Galindo A, Jackson G, Adjiman CS. Enabling the direct solution of challenging computer-aided molecular and process design problems: Chemical absorption of carbon dioxide. Comput Chem Eng 2023. [DOI: 10.1016/j.compchemeng.2023.108204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
|
7
|
Rodríguez‐Calvo J, Villalaín C, Gómez‐Arriaga PI, Quezada MS, Herraiz I, Galindo A. Prediction of perinatal survival in early-onset fetal growth restriction: role of placental growth factor. Ultrasound Obstet Gynecol 2023; 61:181-190. [PMID: 36370447 PMCID: PMC10107431 DOI: 10.1002/uog.26116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/14/2022] [Accepted: 10/18/2022] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To analyze the ability to predict perinatal survival and severe neonatal morbidity of cases with early-onset fetal growth restriction (eoFGR) using maternal variables, ultrasound parameters and angiogenic markers at the time of diagnosis. METHODS This was a prospective observational study in a cohort of singleton pregnancies with a diagnosis of eoFGR (< 32 weeks of gestation). At diagnosis of eoFGR, complete assessment was performed, including ultrasound examination (anatomy, biometry and Doppler assessment) and maternal serum measurement of the angiogenic biomarkers, soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PlGF). Logistic regression models for the prediction of perinatal survival (in cases diagnosed at < 28 weeks) and severe neonatal morbidity (in all liveborn cases) were calculated. RESULTS In total, 210 eoFGR cases were included, of which 185 (88.1%) survived perinatally. The median gestational age at diagnosis was 27 + 0 weeks. All cases diagnosed at ≥ 28 weeks survived. In cases diagnosed < 28 weeks, survivors (vs non-survivors) had a higher gestational age (26.1 vs 24.4 weeks), estimated fetal weight (EFW; 626 vs 384 g), cerebroplacental ratio (1.1 vs 0.9), PlGF (41 vs 18 pg/mL) and PlGF multiples of the median (MoM; 0.10 vs 0.06) and lower sFlt-1/PlGF ratio (129 vs 479) at the time of diagnosis (all P < 0.001). The best combination of two variables for predicting perinatal survival was provided by EFW and PlGF MoM (area under the receiver-operating-characteristics curve (AUC), 0.84 (95% CI, 0.75-0.92)). These were also the best variables for predicting severe neonatal morbidity (AUC, 0.73 (95% CI, 0.66-0.80)). CONCLUSIONS A model combining EFW and maternal serum PlGF predicts accurately perinatal survival in eoFGR cases diagnosed before 28 weeks of gestation. Prenatal prediction of severe neonatal morbidity in eoFGR cases is modest regardless of the model used. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- J. Rodríguez‐Calvo
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| | - C. Villalaín
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| | - P. I. Gómez‐Arriaga
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| | - M. S. Quezada
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| | - I. Herraiz
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| | - A. Galindo
- Fetal Medicine Unit, Department of Obstetrics and GynaecologyHospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12)MadridSpain
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS network)Instituto de Salud Carlos IIIMadridSpain
- Universidad Complutense de MadridMadridSpain
| |
Collapse
|
8
|
Stepan H, Galindo A, Hund M, Schlembach D, Sillman J, Surbek D, Vatish M. Clinical utility of sFlt-1 and PlGF in screening, prediction, diagnosis and monitoring of pre-eclampsia and fetal growth restriction. Ultrasound Obstet Gynecol 2023; 61:168-180. [PMID: 35816445 DOI: 10.1002/uog.26032] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 05/27/2023]
Abstract
Pre-eclampsia (PE) is characterized by placental and maternal endothelial dysfunction, and associated with fetal growth restriction (FGR), placental abruption, preterm delivery and stillbirth. The angiogenic factors soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PlGF) are altered in pregnancies complicated by placenta-related disorders. In this Review, we summarize the existing knowledge, examining the performance of maternal PlGF, sFlt-1 and the sFlt-1/PlGF ratio for screening PE, predicting development of PE in the short term, diagnosing PE, monitoring established PE and predicting other placenta-related disorders in singleton pregnancy. We also discuss the performance of PlGF and the sFlt-1/PlGF ratio for predicting PE in twin pregnancy. For first-trimester screening in singleton pregnancy, a more accurate way of identifying high-risk women than current practice is to combine maternal PlGF levels with clinical risk factors and ultrasound markers. Later in pregnancy, the sFlt-1/PlGF ratio has advantages over PlGF because it has a higher pooled sensitivity and specificity for diagnosing and monitoring PE. It has clinical value because it can rule out the development of PE in the 1-4-week period after the test. Once a diagnosis of PE is established, repeat measurement of sFlt-1 and PlGF can help monitor progression of the condition and may inform clinical decision-making regarding the optimal time for delivery. The sFlt-1/PlGF ratio is useful for predicting FGR and preterm delivery, but the association between stillbirth and the angiogenic factors is unclear. The sFlt-1/PlGF ratio can be used to predict PE in twin pregnancy, although different sFlt-1/PlGF ratio cut-offs from those for singleton pregnancy should be applied for optimal performance. In summary, PlGF, sFlt-1 and the sFlt-1/PlGF ratio are useful for screening, diagnosing, predicting and monitoring placenta-related disorders in singleton and twin pregnancy. We propose that tests for these angiogenic factors are integrated more fully into clinical practice.© 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- H Stepan
- University Hospital Leipzig, Leipzig, Germany
| | - A Galindo
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | - M Hund
- Roche Diagnostics International Ltd, Rotkreuz, Switzerland
| | | | - J Sillman
- Roche Diagnostics International Ltd, Rotkreuz, Switzerland
| | - D Surbek
- University Hospital, University of Bern, Bern, Switzerland
| | - M Vatish
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK
| |
Collapse
|
9
|
Gui L, Adjiman CS, Galindo A, Sayyed FB, Kolis SP, Armstrong A. Uncovering the Most Kinetically Influential Reaction Pathway Driving the Generation of HCN from Oxyma/DIC Adduct: A Theoretical Study. Ind Eng Chem Res 2023; 62:874-880. [PMID: 36692415 PMCID: PMC9853495 DOI: 10.1021/acs.iecr.2c03145] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 01/07/2023]
Abstract
The combination of ethyl (hydroxyimino)cyanoacetate (Oxyma) and diisopropylcarbodiimide (DIC) has demonstrated superior performance in amino acid activation for peptide synthesis. However, it was recently reported that Oxyma and DIC could react to generate undesired hydrogen cyanide (HCN) at 20 °C, raising safety concerns for the practical use of this activation strategy. To help minimize the risks, there is a need for a comprehensive investigation of the mechanism and kinetics of the generation of HCN. Here we show the results of the first systematic computational study of the underpinning mechanism, including comparisons with experimental data. Two pathways for the decomposition of the Oxyma/DIC adduct are derived to account for the generation of HCN and its accompanying cyclic product. These two mechanisms differ in the electrophilic carbon atom attacked by the nucleophilic sp2-nitrogen in the cyclization step and in the cyclic product generated. On the basis of computed "observed" activation energies, ΔG obs ⧧, the mechanism that proceeds via the attack of the sp2-nitrogen at the oxime carbon is identified as the most kinetically favorable one, a conclusion that is supported by closer agreement between predicted and experimental 13C NMR data. These results can provide a theoretical basis to develop a design strategy for suppressing HCN generation when using Oxyma/DIC for amino acid activation.
Collapse
Affiliation(s)
- Lingfeng Gui
- Department
of Chemical Engineering, The Sargent Centre for Process Systems Engineering
and Institute for Molecular Science and Engineering, Imperial College London, LondonSW7 2AZ, U.K.
| | - Claire S. Adjiman
- Department
of Chemical Engineering, The Sargent Centre for Process Systems Engineering
and Institute for Molecular Science and Engineering, Imperial College London, LondonSW7 2AZ, U.K.
| | - Amparo Galindo
- Department
of Chemical Engineering, The Sargent Centre for Process Systems Engineering
and Institute for Molecular Science and Engineering, Imperial College London, LondonSW7 2AZ, U.K.
| | - Fareed Bhasha Sayyed
- Synthetic
Molecule Design and Development, Eli Lilly
Services India Pvt Ltd, Devarabeesanahalli, Bengaluru560103, India
| | - Stanley P. Kolis
- Synthetic
Molecule Design and Development, Eli Lilly
and Company, Lilly Corporate
Center, Indianapolis, Indiana46285, United States
| | - Alan Armstrong
- Department
of Chemistry and Institute for Molecular Science and Engineering, Imperial College London, Molecular Sciences Research Hub, White City Campus, LondonW12 0BZ, U.K.,E-mail:
| |
Collapse
|
10
|
Kournopoulos S, Santos MS, Ravipati S, Haslam AJ, Jackson G, Economou IG, Galindo A. The Contribution of the Ion-Ion and Ion-Solvent Interactions in a Molecular Thermodynamic Treatment of Electrolyte Solutions. J Phys Chem B 2022; 126:9821-9839. [PMID: 36395498 PMCID: PMC9720728 DOI: 10.1021/acs.jpcb.2c03915] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Developing molecular equations of state to treat electrolyte solutions is challenging due to the long-range nature of the Coulombic interactions. Seminal approaches commonly used are the mean spherical approximation (MSA) and the Debye-Hückel (DH) theory to account for ion-ion interactions and, often, the Born theory of solvation for ion-solvent interactions. We investigate the accuracy of the MSA and DH approaches using each to calculate the contribution of the ion-ion interactions to the chemical potential of NaCl in water, comparing these with newly computer-generated simulation data; the ion-ion contribution is isolated by selecting an appropriate primitive model with a Lennard-Jones force field to describe the solvent. A study of mixtures with different concentrations and ionic strengths reveals that the calculations from both MSA and DH theories are of similar accuracy, with the MSA approach resulting in marginally better agreement with the simulation data. We also demonstrate that the Born theory provides a good qualitative description of the contribution of the ion-solvent interactions; we employ an explicitly polar water model in these simulations. Quantitative agreement up to moderate salt concentrations and across the relevant range of temperature is achieved by adjusting the Born radius using simulation data of the free energy of solvation. We compute the radial and orientational distribution functions of the systems, thereby providing further insight on the differences observed between the theory and simulation. We thus provide rigorous benchmarks for use of the MSA, DH, and Born theories as perturbation approaches, which will be of value for improving existing models of electrolyte solutions, especially in the context of equations of state.
Collapse
Affiliation(s)
- Spiros Kournopoulos
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
and Institute for Molecular Science and Engineering, Imperial College, London, London SW7 2AZ, United Kingdom
| | - Mirella Simões Santos
- Laboratoire
de Chimie, École Normale Supérieure
de Lyon, 46 Allée d’Italie, 69364 Lyon, France,Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Srikanth Ravipati
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
and Institute for Molecular Science and Engineering, Imperial College, London, London SW7 2AZ, United Kingdom
| | - Andrew J. Haslam
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
and Institute for Molecular Science and Engineering, Imperial College, London, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
and Institute for Molecular Science and Engineering, Imperial College, London, London SW7 2AZ, United Kingdom
| | - Ioannis G. Economou
- Chemical
Engineering Program, Texas A&M University
at Qatar, Doha 23874, Qatar
| | - Amparo Galindo
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
and Institute for Molecular Science and Engineering, Imperial College, London, London SW7 2AZ, United Kingdom,
| |
Collapse
|
11
|
Valsecchi M, Ramadani J, Williams D, Galindo A, Jackson G. Influence of Tie-Molecules and Microstructure on the Fluid Solubility in Semicrystalline Polymers. J Phys Chem B 2022; 126:9059-9088. [DOI: 10.1021/acs.jpcb.2c04600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michele Valsecchi
- Department of Materials, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Jona Ramadani
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Daryl Williams
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| |
Collapse
|
12
|
Fayaz-Torshizi M, Graham EJ, Adjiman CS, Galindo A, Jackson G, Müller EA. SAFT- γ Force Field for the Simulation of Molecular Fluids 9: Coarse-Grained Models for Polyaromatic Hydrocarbons Describing Thermodynamic, Interfacial, Structural, and Transport Properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120827] [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: 11/21/2022]
|
13
|
Graham EJ, Forte E, Burger J, Galindo A, Jackson G, Adjiman CS. Multi-objective optimization of equation of state molecular parameters: SAFT-VR Mie models for water. Comput Chem Eng 2022. [DOI: 10.1016/j.compchemeng.2022.108015] [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]
|
14
|
Kournopoulos S, Haslam AJ, Jackson G, Galindo A, Schoen M. Molecular theory of the static dielectric constant of dipolar fluids. J Chem Phys 2022; 156:154111. [PMID: 35459323 DOI: 10.1063/5.0079511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The link between the static dielectric constant and the microscopic intermolecular interactions is the Kirkwood g1 factor, which depends on the orientational structure of the fluid. Over the years, there have been several attempts to provide an accurate description of the orientational structure of dipolar fluids using molecular theories. However, these approaches were either limited to mean-field approximations for the pair correlation function or, more recently, limited to adjusting the orientational dependence to simulation data. Here, we derive a theory for the dielectric constant of dipolar hard-sphere fluids using the augmented modified mean-field approximation. Qualitative agreement is achieved throughout all relevant thermodynamic states, as demonstrated by a comparison with simulation data from the literature. Excellent quantitative agreement can be obtained using a single empirical scaling factor, the physical origin of which is analyzed and accounted for. In order to predict the dielectric constant of the Stockmayer fluid (Lennard-Jones plus dipole potential), we use an adjusted version of the expression for the dipolar hard-sphere fluid. Comparing theoretical predictions with newly generated simulation data, we show that it is possible to obtain excellent agreement with simulation by performing the calculations at a corresponding state using the same scaling factor. Finally, we compare the theoretical orientational structure of the Stockmayer fluid with that obtained from simulations. The simulated structure is calculated following a post-processing methodology that we introduce by deriving an original expression that relates the proposed theory to the histogram of relative dipole angles.
Collapse
Affiliation(s)
- S Kournopoulos
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - A J Haslam
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - G Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - A Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - M Schoen
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| |
Collapse
|
15
|
Alkhatib II, Galindo A, Vega LF. Systematic study of the effect of the co-solvent on the performance of amine-based solvents for CO2 capture. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120093] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
16
|
Evans R, Frenkel D, Galindo A, Jackson G. Special issue in honour of Michael L. Klein FRS. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1999639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Robert Evans
- H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK
| | - Daan Frenkel
- Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London, London, UK
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, London, UK
| |
Collapse
|
17
|
Morgado P, Barras J, Galindo A, Jackson G, Filipe EJM. Solubility of water in mixtures of ( n-alkanes + n-perfluoroalkanes) and in n-perfluoroalkylalkanes: experiments and modelling with the SAFT- γ Mie group-contribution approach. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1910743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Pedro Morgado
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - João Barras
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - Eduardo J. M. Filipe
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| |
Collapse
|
18
|
Watson O, Jonuzaj S, McGinty J, Sefcik J, Galindo A, Jackson G, Adjiman CS. Computer Aided Design of Solvent Blends for Hybrid Cooling and Antisolvent Crystallization of Active Pharmaceutical Ingredients. Org Process Res Dev 2021; 25:1123-1142. [PMID: 34295139 PMCID: PMC8289336 DOI: 10.1021/acs.oprd.0c00516] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Indexed: 02/06/2023]
Abstract
Choosing a solvent and an antisolvent for a new crystallization process is challenging due to the sheer number of possible solvent mixtures and the impact of solvent composition and crystallization temperature on process performance. To facilitate this choice, we present a general computer aided mixture/blend design (CAMbD) formulation for the design of optimal solvent mixtures for the crystallization of pharmaceutical products. The proposed methodology enables the simultaneous identification of the optimal process temperature, solvent, antisolvent, and composition of solvent mixture. The SAFT-γ Mie group-contribution approach is used in the design of crystallization solvents; based on an equilibrium model, both the crystal yield and solvent consumption are considered. The design formulation is implemented in gPROMS and applied to the crystallization of lovastatin and ibuprofen, where a hybrid approach combining cooling and antisolvent crystallization is compared to each method alone. For lovastatin, the use of a hybrid approach leads to an increase in crystal yield compared to antisolvent crystallization or cooling crystallization. Furthermore, it is seen that using less volatile but powerful crystallization solvents at lower temperatures can lead to better performance. When considering ibuprofen, the hybrid and antisolvent crystallization techniques provide a similar performance, but the use of solvent mixtures throughout the crystallization is critical in maximizing crystal yields and minimizing solvent consumption. We show that our more general approach to rational design of solvent blends brings significant benefits for the design of crystallization processes in pharmaceutical and chemical manufacturing.
Collapse
Affiliation(s)
- Oliver
L. Watson
- Department
of Chemical Engineering, Centre for Process Systems Engineering, Institute
for Molecular Science and Engineering and EPSRC Future Manufacturing
Hub in Continuous Manufacturing and Advanced Crystallisation, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Suela Jonuzaj
- Department
of Chemical Engineering, Centre for Process Systems Engineering, Institute
for Molecular Science and Engineering and EPSRC Future Manufacturing
Hub in Continuous Manufacturing and Advanced Crystallisation, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - John McGinty
- EPSRC
Future Manufacturing Hub in Continuous Manufacturing and Advanced
Crystallisation, Department of Chemical and Process Engineering, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Jan Sefcik
- EPSRC
Future Manufacturing Hub in Continuous Manufacturing and Advanced
Crystallisation, Department of Chemical and Process Engineering, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Amparo Galindo
- Department
of Chemical Engineering, Centre for Process Systems Engineering, Institute
for Molecular Science and Engineering and EPSRC Future Manufacturing
Hub in Continuous Manufacturing and Advanced Crystallisation, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - George Jackson
- Department
of Chemical Engineering, Centre for Process Systems Engineering, Institute
for Molecular Science and Engineering and EPSRC Future Manufacturing
Hub in Continuous Manufacturing and Advanced Crystallisation, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Claire S. Adjiman
- Department
of Chemical Engineering, Centre for Process Systems Engineering, Institute
for Molecular Science and Engineering and EPSRC Future Manufacturing
Hub in Continuous Manufacturing and Advanced Crystallisation, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| |
Collapse
|
19
|
Di Mascio D, Buca D, Berghella V, Khalil A, Rizzo G, Odibo A, Saccone G, Galindo A, Liberati M, D'Antonio F. Counseling in maternal-fetal medicine: SARS-CoV-2 infection in pregnancy. Ultrasound Obstet Gynecol 2021; 57:687-697. [PMID: 33724545 PMCID: PMC8251147 DOI: 10.1002/uog.23628] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/25/2021] [Accepted: 03/10/2021] [Indexed: 02/05/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a zoonotic coronavirus that crossed species to infect humans, causing coronavirus disease 2019 (COVID-19). Despite a potentially higher risk of pregnant women acquiring SARS-CoV-2 infection compared with the non-pregnant population (particularly in some ethnic minorities), no additional specific recommendations to avoid exposure are needed in pregnancy. The most common clinical symptoms and laboratory signs of SARS-CoV-2 infection in pregnancy are fever, cough, lymphopenia and elevated C-reactive protein levels. Pregnancy is associated with a higher risk of severe SARS-CoV-2 infection compared with the non-pregnant population, including pneumonia, admission to the intensive care unit and death, even after adjusting for potential risk factors for severe outcomes. The risk of miscarriage does not appear to be increased in women with SARS-CoV-2 infection. Evidence with regards to preterm birth and perinatal mortality is conflicting, but these risks are generally higher only in symptomatic, hospitalized women. The risk of vertical transmission, defined as the transmission of SARS-CoV-2 from the mother to the fetus or the newborn, is generally low. Fetal invasive procedures are considered to be generally safe in pregnant women with SARS-CoV-2 infection, although the evidence is still limited. In pregnant women with COVID-19, use of steroids should not be avoided if clinically indicated; the preferred regimen is a 2-day course of dexamethasone followed by an 8-day course of methylprednisolone. Non-steroidal anti-inflammatory drugs may be used if there are no contraindications. Hospitalized pregnant women with severe COVID-19 should undergo thromboprophylaxis throughout the duration of hospitalization and at least until discharge, preferably with low molecular weight heparin. Hospitalized women who have recovered from a period of serious or critical illness with COVID-19 should be offered a fetal growth scan about 14 days after recovery from their illness. In asymptomatic or mildly symptomatic women who have tested positive for SARS-CoV-2 infection at full term (i.e. ≥ 39 weeks of gestation), induction of labor might be reasonable. To date, there is no clear consensus on the optimal timing of delivery for critically ill women. In women with no or few symptoms, management of labor should follow routine evidence-based guidelines. Regardless of COVID-19 status, mothers and their infants should remain together and breastfeeding, skin-to-skin contact, kangaroo mother care and rooming-in throughout the day and night should be practiced, while applying necessary infection prevention and control measures. Many pregnant women have already undergone vaccination, mostly in the USA where the first reports show no significant difference in pregnancy outcomes in pregnant women receiving SARS-CoV-2 vaccination during pregnancy compared with the background risk. Vaccine-generated antibodies were present in the umbilical cord blood and breast milk samples of pregnant and lactating women who received the mRNA COVID-19 vaccine. Based on the available limited data on the safety of the COVID-19 vaccine in pregnancy, it seems reasonable to offer the option of vaccination to pregnant women after accurate counseling on the potential risk of a severe course of the disease and the unknown risk of fetal exposure to the vaccine. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- D. Di Mascio
- Department of Maternal and Child Health and Urological Sciences“Sapienza” University of RomeRomeItaly
| | - D. Buca
- Center for High‐Risk Pregnancy and Fetal Care, Department of Obstetrics and GynecologyUniversity of ChietiChietiItaly
| | - V. Berghella
- Department of Obstetrics and Gynecology, Division of Maternal‐Fetal Medicine, Sidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPAUSA
| | - A. Khalil
- Fetal Medicine UnitSt George's University Hospitals NHS Foundation Trust, University of LondonLondonUK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research InstituteSt George's University of LondonLondonUK
| | - G. Rizzo
- Division of Maternal and Fetal Medicine, Ospedale Cristo ReUniversity of Rome Tor VergataRomeItaly
- Department of Obstetrics and GynecologyThe First I.M. Sechenov Moscow State Medical UniversityMoscowRussia
| | - A. Odibo
- Division of Maternal Fetal MedicineUniversity of South FloridaTampaFLUSA
| | - G. Saccone
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of MedicineUniversity of Naples Federico IINaplesItaly
| | - A. Galindo
- Fetal Medicine Unit – Maternal and Child Health and Development Network, Department of Obstetrics and GynecologyUniversity Hospital 12 de Octubre, 12 de Octubre Research Institute, Complutense University of MadridMadridSpain
| | - M. Liberati
- Center for High‐Risk Pregnancy and Fetal Care, Department of Obstetrics and GynecologyUniversity of ChietiChietiItaly
| | - F. D'Antonio
- Center for High‐Risk Pregnancy and Fetal Care, Department of Obstetrics and GynecologyUniversity of ChietiChietiItaly
| |
Collapse
|
20
|
Lindeboom T, Zhao B, Jackson G, Hall CK, Galindo A. On the liquid demixing of water + elastin-like polypeptide mixtures: bimodal re-entrant phase behaviour. Phys Chem Chem Phys 2021; 23:5936-5944. [PMID: 33666204 DOI: 10.1039/d0cp05013j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water + elastin-like polypeptides (ELPs) exhibit a transition temperature below which the chains transform from collapsed to expanded states, reminiscent of the cold denaturation of proteins. This conformational change coincides with liquid-liquid phase separation. A statistical-thermodynamics theory is used to model the fluid-phase behavior of ELPs in aqueous solution and to extrapolate the behavior at ambient conditions over a range of pressures. At low pressures, closed-loop liquid-liquid equilibrium phase behavior is found, which is consistent with that of other hydrogen-bonding solvent + polymer mixtures. At pressures evocative of deep-sea conditions, liquid-liquid immiscibility bounded by two lower critical solution temperatures (LCSTs) is predicted. As pressure is increased further, the system exhibits two separate regions of closed-loop of liquid-liquid equilibrium (LLE). The observation of bimodal LCSTs and two re-entrant LLE regions herald a new type of binary global phase diagram: Type XII. At high-ELP concentrations the predicted phase diagram resembles a protein pressure denaturation diagram; possible "molten-globule"-like states are observed at low concentration.
Collapse
Affiliation(s)
- Tom Lindeboom
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK
| | - Binwu Zhao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA.
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK
| | - Carol K Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA.
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK
| |
Collapse
|
21
|
Perdomo FA, Khalit SH, Adjiman CS, Galindo A, Jackson G. Description of the thermodynamic properties and fluid‐phase behavior of aqueous solutions of linear, branched, and cyclic amines. AIChE J 2021. [DOI: 10.1002/aic.17194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Felipe A. Perdomo
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - Siti H. Khalit
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
- PETRONAS Research Sdn Bhd Kuala Lumpur Malaysia
| | - Claire S. Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| |
Collapse
|
22
|
Diamanti A, Ganase Z, Grant E, Armstrong A, Piccione PM, Rea AM, Richardson J, Galindo A, Adjiman CS. Mechanism, kinetics and selectivity of a Williamson ether synthesis: elucidation under different reaction conditions. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00437e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
New mechanistic understanding and the quantification of reaction kinetics shed light on the large impact of the solvent on selectivity.
Collapse
Affiliation(s)
- Aikaterini Diamanti
- Department of Chemical Engineering
- Centre for Process Systems Engineering and Institute for Molecular Science and Engineering
- Imperial College London, South Kensington Campus
- London SW7 2AZ
- UK
| | - Zara Ganase
- Department of Chemical Engineering
- Centre for Process Systems Engineering and Institute for Molecular Science and Engineering
- Imperial College London, South Kensington Campus
- London SW7 2AZ
- UK
| | - Eliana Grant
- Department of Chemical Engineering
- Centre for Process Systems Engineering and Institute for Molecular Science and Engineering
- Imperial College London, South Kensington Campus
- London SW7 2AZ
- UK
| | - Alan Armstrong
- Department of Chemistry and Institute for Molecular Science and Engineering
- Imperial College London
- London W12 0BZ
- UK
| | - Patrick M. Piccione
- Process Studies Group
- Process Technology AI
- Syngenta
- Jealott's Hill International Research Center
- Bracknell
| | - Anita M. Rea
- Process Studies Group
- Process Technology AI
- Syngenta
- Jealott's Hill International Research Center
- Bracknell
| | | | - Amparo Galindo
- Department of Chemical Engineering
- Centre for Process Systems Engineering and Institute for Molecular Science and Engineering
- Imperial College London, South Kensington Campus
- London SW7 2AZ
- UK
| | - Claire S. Adjiman
- Department of Chemical Engineering
- Centre for Process Systems Engineering and Institute for Molecular Science and Engineering
- Imperial College London, South Kensington Campus
- London SW7 2AZ
- UK
| |
Collapse
|
23
|
Quezada MS, Rodríguez-Calvo J, Villalaín C, Gómez-Arriaga PI, Galindo A, Herraiz I. sFlt-1/PlGF ratio and timing of delivery in early-onset fetal growth restriction with antegrade umbilical artery flow. Ultrasound Obstet Gynecol 2020; 56:549-556. [PMID: 31840879 DOI: 10.1002/uog.21949] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/23/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To analyze the value of the soluble fms-like tyrosine kinase-1/placental growth factor (sFlt-1/PlGF) ratio in predicting the time to delivery in early-onset fetal growth restriction (FGR) with preserved antegrade umbilical artery (UA) flow at diagnosis. METHODS This was a prospective observational single-center cohort study of pregnancies with early-onset (< 32 + 0 weeks) FGR and antegrade UA flow, in which maternal serum sFlt-1/PlGF ratio was determined at diagnosis. FGR was defined as estimated fetal weight < 3rd centile or < 10th centile with UA pulsatility index > 95th centile, fetal middle cerebral artery pulsatility index < 5th centile or cerebroplacental ratio < 5th centile. The previously described sFlt-1/PlGF ratio cut-off value of 85 for facilitating the diagnosis of pre-eclampsia was assessed in the prediction of the need to deliver in < 1 week and ≥ 4 weeks. RESULTS In total, 120 cases were included. There were 116 (96.7%) liveborn neonates and 108 (90.0%) perinatal survivors. Median (interquartile range (IQR)) gestational age at diagnosis of early-onset FGR was 27.1 (25.7-29.4) weeks. Median (IQR) sFlt-1/PlGF ratio at diagnosis was 196 (84-474). Ninety (75.0%) cases had a sFlt-1/PlGF ratio ≥ 85. Among pregnancies with a liveborn neonate, median (IQR) interval to delivery in the groups with sFlt-1/PlGF ratio < 85 and ≥ 85 was 41 (22-54) days and 11 (4-20) days, respectively (P < 0.01). The probability of having to deliver within 1 week after diagnosis was 0% and 35.6% in those with sFlt-1/PlGF ratio < 85 and ≥ 85, respectively (P = 0.03), and the probability of delaying delivery for ≥ 4 weeks was 72.4% and 19.5%, respectively (P < 0.01). CONCLUSION sFlt-1/PlGF ratio < 85 at diagnosis of early-onset FGR with antegrade UA flow identifies a group of pregnancies in which the need to deliver within 1 week is very low and the interval to delivery is expected to be prolonged for ≥ 4 weeks in > 70% of cases. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- M S Quezada
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - J Rodríguez-Calvo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - C Villalaín
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - P I Gómez-Arriaga
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - I Herraiz
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
24
|
Kohns M, Lazarou G, Kournopoulos S, Forte E, Perdomo FA, Jackson G, Adjiman CS, Galindo A. Predictive models for the phase behaviour and solution properties of weak electrolytes: nitric, sulphuric, and carbonic acids. Phys Chem Chem Phys 2020; 22:15248-15269. [PMID: 32609107 DOI: 10.1039/c9cp06795g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The distribution of ionic species in electrolyte systems is important in many fields of science and engineering, ranging from the study of degradation mechanisms to the design of systems for electrochemical energy storage. Often, other phenomena closely related to ionic speciation, such as ion pairing, clustering and hydrogen bonding, which are difficult to investigate experimentally, are also of interest. Here, we develop an accurate molecular approach, accounting for reactions as well as association and ion pairing, to deliver a predictive framework that helps validate experiment and guides future modelling of speciation phenomena of weak electrolytes. We extend the SAFT-VRE Mie equation of state [D. K. Eriksen et al., Mol. Phys., 2016, 114, 2724-2749] to study aqueous solutions of nitric, sulphuric, and carbonic acids, considering complete and partially dissociated models. In order to incorporate the dissociation equilibria, correlations to experimental data for the relevant thermodynamic equilibrium constants of the dissociation reactions are taken from the literature and are imposed as a boundary condition in the calculations. The models for water, the hydronium ion, and carbon dioxide are treated as transferable and are taken from our previous work. We present new molecular models for nitric acid, and the nitrate, bisulfate, sulfate, and bicarbonate anions. The resulting framework is used to predict a range of phase behaviour and solution properties of the aqueous acids over wide ranges of concentration and temperature, including the degree of dissociation, as well as the activity coefficients of the ionic species, and the activity of water and osmotic coefficient, density, and vapour pressure of the solutions. The SAFT-VRE Mie models obtained in this manner provide a means of elucidating the mechanisms of association and ion pairing in the systems studied, complementing the experimental observations reported in the literature.
Collapse
Affiliation(s)
- Maximilian Kohns
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK.
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Blas FJ, Galindo A, Jackson G. Thermodynamics 2019 Conference–Punta Umbría, Costa de la Luz, Huelva, Spain, 26–28 June 2019. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1771043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Felipe J. Blas
- Conference Chair: Laboratorio de Simulación Molecular y Química Computacional, Centro de Investigación en Química Sostenible (CIQSO), and Departamento de Ciencias Integradas, Universidad de Huelva, Huelva, Spain
| | - Amparo Galindo
- TCS Presiding Officer: Department of Chemical Engineering, Imperial College London, London, UK
| | - George Jackson
- Editor of Molecular Physics: Department of Chemical Engineering, Imperial College London, London, UK
| |
Collapse
|
26
|
Di Lecce S, Lazarou G, Khalit SH, Pugh D, Adjiman CS, Jackson G, Galindo A, McQueen L. Correction: Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie. RSC Adv 2020; 10:19463-19465. [PMID: 35532400 PMCID: PMC9054199 DOI: 10.1039/d0ra90058c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie’ by Silvia Di Lecce et al., RSC Adv., 2019, 9, 38017–38031. DOI: 10.1039/C9RA07057E
Collapse
Affiliation(s)
- Silvia Di Lecce
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Georgia Lazarou
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Siti H Khalit
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - David Pugh
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London London W12 0BZ UK
| | - Claire S Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Lisa McQueen
- Chemical Development, GSK 1250 S Collegeville Rd Collegeville PA 19426 USA
| |
Collapse
|
27
|
Lee YS, Graham EJ, Galindo A, Jackson G, Adjiman CS. A comparative study of multi-objective optimization methodologies for molecular and process design. Comput Chem Eng 2020. [DOI: 10.1016/j.compchemeng.2020.106802] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
28
|
Papadopoulos AI, Shavalieva G, Papadokonstantakis S, Seferlis P, Perdomo FA, Galindo A, Jackson G, Adjiman CS. An approach for simultaneous computer-aided molecular design with holistic sustainability assessment: Application to phase-change CO2 capture solvents. Comput Chem Eng 2020. [DOI: 10.1016/j.compchemeng.2020.106769] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
29
|
Poon LC, Galindo A, Surbek D, Chantraine F, Stepan H, Hyett J, Tan KH, Verlohren S. From first-trimester screening to risk stratification of evolving pre-eclampsia in second and third trimesters of pregnancy: comprehensive approach. Ultrasound Obstet Gynecol 2020; 55:5-12. [PMID: 31503374 DOI: 10.1002/uog.21869] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Affiliation(s)
- L C Poon
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - A Galindo
- Fetal Medicine Unit - Maternal and Child Health and Development Network, Department of Obstetrics and Gynaecology, University Hospital 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - D Surbek
- Department of Obstetrics and Gynecology, Inselspital Bern University Hospital, University of Bern, Bern, Switzerland
| | - F Chantraine
- Department of Obstetrics and Gynecology, CHR Citadelle, CHU Liege, Liege, Belgium
| | - H Stepan
- Department of Obstetrics, University Hospital Leipzig, Leipzig, Germany
| | - J Hyett
- Department of Women and Babies, Royal Prince Alfred Hospital, Sydney, Australia
| | - K H Tan
- KK Women's and Children's Hospital, Singapore
| | - S Verlohren
- Department of Obstetrics, Charité - Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
30
|
Rothman A, Jaiswal V, Evans WN, Restrepo H, Galindo A. Percutaneous retrieval of fractured intravascular catheters in premature infants. J Neonatal Perinatal Med 2019; 13:413-417. [PMID: 31771073 DOI: 10.3233/npm-180159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Premature infants often require long-term indwelling intravascular catheters. Occasionally, catheters fracture and migrate into cardiovascular structures, risking perforation, infection, thrombosis, and interference with cardiac and valve function. This case series describes our experience with percutaneous retrieval of broken intravascular catheters. METHODS A gooseneck micro-snare was used to retrieve fractured catheters in four premature infants, weighing between 840 and 1930 grams. RESULTS All procedures were successful without complications. CONCLUSIONS Gooseneck-snare retrieval of broken indwelling intravascular catheters can be performed safely and successfully in premature infants even those that weigh less than 1000 grams.
Collapse
Affiliation(s)
- A Rothman
- Children's Heart Center Nevada, Las Vegas, NV, USA.,Department of Pediatrics, University of Nevada Las Vegas, School of Medicine, Las Vegas, NV, USA
| | - V Jaiswal
- Department of Pediatrics, University of Nevada Las Vegas, School of Medicine, Las Vegas, NV, USA
| | - W N Evans
- Children's Heart Center Nevada, Las Vegas, NV, USA.,Department of Pediatrics, University of Nevada Las Vegas, School of Medicine, Las Vegas, NV, USA
| | - H Restrepo
- Children's Heart Center Nevada, Las Vegas, NV, USA.,Department of Pediatrics, University of Nevada Las Vegas, School of Medicine, Las Vegas, NV, USA
| | - A Galindo
- Children's Heart Center Nevada, Las Vegas, NV, USA.,Department of Pediatrics, University of Nevada Las Vegas, School of Medicine, Las Vegas, NV, USA
| |
Collapse
|
31
|
Ravipati S, Galindo A, Jackson G, Haslam AJ. An investigation of free-energy-averaged (coarse-grained) potentials for fluid adsorption on heterogeneous solid surfaces. Phys Chem Chem Phys 2019; 21:25558-25568. [PMID: 31538169 DOI: 10.1039/c9cp02601k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Coarse-grained, two-body fluid-solid potentials provide a simple way to describe the interaction between a fluid molecule and a solid in adsorption theories, and also a means to reduce the computational expense in molecular simulations, compared to those employing full atomistic detail. Here we investigate the applicability of a recently proposed mapping procedure to obtain free-energy-averaged (FEA) fluid-solid interactions for fluids on various heterogeneous surfaces. Methane and graphite are chosen as the fluid and the solid, respectively, and the surface graphene layer is modified to create chemical and geometrical heterogeneities; for the latter surfaces, the FEA mapping is appropriately modified to account for vacancies. Adsorption isotherms and fluid density profiles are obtained by performing grand canonical Monte Carlo (GCMC) simulations for explicit-solid and FEA-potential representations, and are compared to gain insights about the applicability and limitations of the FEA potentials. For solids with homogeneous and chemically heterogeneous surfaces, adsorption isotherms and density profiles obtained using FEA potentials are in good agreement with those obtained using an explicit-solid representation. For surfaces containing vacancies, isotherms and density profiles obtained using the unmodified FEA potential differ significantly from their explicit-surface analogues. When using the FEA potential obtained with the modified mapping procedure some deviations are still seen at very high pressure, however, at low to moderate pressures, agreement is, once again, good.
Collapse
Affiliation(s)
- Srikanth Ravipati
- Molecular Systems Engineering Group, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
| | | | | | | |
Collapse
|
32
|
Affiliation(s)
- S. A. Febra
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - A. Aasen
- Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - C. S. Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - G. Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - A. Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| |
Collapse
|
33
|
Villalaín C, Valle L, Mendoza M, Vázquez-Fernández M, Fernández Oliva A, Caamiña S, Delgado J, Melchor I, Uriarte J, Herraiz I, Galindo A. Maternal adverse outcomes associated with extremely high values of the sFlt-1/PlGF ratio. Pregnancy Hypertens 2019. [DOI: 10.1016/j.preghy.2019.08.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
34
|
Villalaín C, Valle L, Mendoza M, Vázquez-Fernández M, Fernández Oliva A, Caamiña S, Delgado J, Melchor I, Uriarte J, Herraiz I, Galindo A. Fetal growth restriction and perinatal adverse outcomes associated with extremely high values of the sFlt-1/PlGF ratio. Pregnancy Hypertens 2019. [DOI: 10.1016/j.preghy.2019.08.151] [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]
|
35
|
Ribera I, Ruiz A, Sánchez O, Eixarch E, Antolín E, Gómez-Montes E, Pérez-Cruz M, Cruz-Lemini M, Sanz-Cortés M, Arévalo S, Ferrer Q, Vázquez E, Vega L, Dolader P, Montoliu A, Boix H, Simões RV, Masoller N, Sánchez-de-Toledo J, Comas M, Bartha JM, Galindo A, Martínez JM, Gómez-Roig L, Crispi F, Gómez O, Carreras E, Cabero L, Gratacós E, Llurba E. Multicenter prospective clinical study to evaluate children short-term neurodevelopmental outcome in congenital heart disease (children NEURO-HEART): study protocol. BMC Pediatr 2019; 19:326. [PMID: 31506079 PMCID: PMC6737686 DOI: 10.1186/s12887-019-1689-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/26/2019] [Indexed: 12/03/2022] Open
Abstract
Background Congenital heart disease (CHD) is the most prevalent congenital malformation affecting 1 in 100 newborns. While advances in early diagnosis and postnatal management have increased survival in CHD children, worrying long-term outcomes, particularly neurodevelopmental disability, have emerged as a key prognostic factor in the counseling of these pregnancies. Methods Eligible participants are women presenting at 20 to < 37 weeks of gestation carrying a fetus with CHD. Maternal/neonatal recordings are performed at regular intervals, from the fetal period to 24 months of age, and include: placental and fetal hemodynamics, fetal brain magnetic resonance imaging (MRI), functional echocardiography, cerebral oxymetry, electroencephalography and serum neurological and cardiac biomarkers. Neurodevelopmental assessment is planned at 12 months of age using the ages and stages questionnaire (ASQ) and at 24 months of age with the Bayley-III test. Target recruitment is at least 150 cases classified in three groups according to three main severe CHD groups: transposition of great arteries (TGA), Tetralogy of Fallot (TOF) and Left Ventricular Outflow Tract Obstruction (LVOTO). Discussion The results of NEURO-HEART study will provide the most comprehensive knowledge until date of children’s neurologic prognosis in CHD and will have the potential for developing future clinical decisive tools and improving preventive strategies in CHD. Trial registration NCT02996630, on 4th December 2016 (retrospectively registered).
Collapse
Affiliation(s)
- I Ribera
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - A Ruiz
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - O Sánchez
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain.,Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain
| | - E Eixarch
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - E Antolín
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynaecology, Hospital Universitario La Paz, Madrid, Spain
| | - E Gómez-Montes
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,Hospital Universitario 12 de Octubre, Universidad Computense de Madrid, Madrid, Spain
| | - M Pérez-Cruz
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - M Cruz-Lemini
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - M Sanz-Cortés
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - S Arévalo
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - Q Ferrer
- Department of Paediatric Cardiology, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - E Vázquez
- Department of Pediatric Radiology,
- Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - L Vega
- Department of Paediatric Cardiology, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - P Dolader
- Department of Paediatric Cardiology, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - A Montoliu
- Department of Neuropsicology, Vall d'Hebron University Hospital Barcelona, Barcelona, Spain
| | - H Boix
- Department of Pediatrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - R V Simões
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - N Masoller
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - J Sánchez-de-Toledo
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,Department of Cardiology, Hospital Sant Joan de Déu, Barcelona, Barcelona, Spain
| | - M Comas
- Universitary Hospital Germans Trias i Pujol, Barcelona, Spain
| | - J M Bartha
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynaecology, Hospital Universitario La Paz, Madrid, Spain
| | - A Galindo
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,Hospital Universitario 12 de Octubre, Universidad Computense de Madrid, Madrid, Spain
| | - J M Martínez
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - L Gómez-Roig
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain.,BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - F Crispi
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - O Gómez
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - E Carreras
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - L Cabero
- Department of Obstetrics, Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - E Gratacós
- BCNatal, Hospital Clínic of Barcelona and Hospital Sant Joan de Déu, Barcelona, Spain
| | - E Llurba
- Spain Maternal and Child Health Development Network, RETICS funded by the PN I+D+I 2013-2016 (Spain), ISCIII- Sub-Directorate General for Research Assessment and Promotion and the European Regional Development Fund (ERDF), ref. RD16/0022, Madrid, Spain. .,Director of Obstetrics and Gynaecology Department, St Creu and St Pau Hospital, Sant Antoni Mª Claret, 167, 08025, Barcelona, Spain.
| |
Collapse
|
36
|
Nouri H, Stokvis B, Galindo A, Blatchford M, Hoekstra AY. Water scarcity alleviation through water footprint reduction in agriculture: The effect of soil mulching and drip irrigation. Sci Total Environ 2019; 653:241-252. [PMID: 30412869 DOI: 10.1016/j.scitotenv.2018.10.311] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 05/22/2023]
Abstract
Water scarcity has received global attention in the last decade as it challenges food security in arid and semi-arid regions, particularly in the Middle East and North Africa. This research assesses the possible alleviation of water scarcity by reducing the water footprint in crop production through the application of soil mulching and drip irrigation. The study is the first to do so at catchment scale, taking into account various crops, multi-cropping, cropping patterns, and spatial differences in climate, soil, and field management factors, using field survey and local data. The AquaCrop-OS model and the global water footprint assessment (WFA) standard were used to assess the green and blue water footprint (WF) of ten major crops in the Upper Litani Basin (ULB) in Lebanon. The blue water saving and blue water scarcity reduction under these two alternative practices were compared to the current situation. The results show that the WF of crop production is more sensitive to climate than soil type. The annual blue WF of summer crops was largest when water availability was lowest. Mulching reduced the blue WF by 3.6% and mulching combined with drip irrigation reduced it by 4.7%. The blue water saving from mulching was estimated about 6.3 million m3/y and from mulching combined with drip irrigation about 8.3 million m3/y. This is substantial but by far not sufficient to reduce the overall blue WF in summer to a sustainable level at catchment scale.
Collapse
Affiliation(s)
- H Nouri
- Faculty of Engineering Technology, University of Twente, 7500 AE Enschede, the Netherlands; Division of Agronomy, University of Göttingen, Von-Siebold-Strasse 8, 37075, Göttingen, Germany.
| | - B Stokvis
- Faculty of Engineering Technology, University of Twente, 7500 AE Enschede, the Netherlands
| | - A Galindo
- Faculty of Engineering Technology, University of Twente, 7500 AE Enschede, the Netherlands
| | - M Blatchford
- Faculty of ITC, University of Twente, Hengelosestraat 99, 7514 AE, Enschede, the Netherlands
| | - A Y Hoekstra
- Faculty of Engineering Technology, University of Twente, 7500 AE Enschede, the Netherlands; Institute of Water Policy, Lee Kuan Yew School of Public Policy, National University of Singapore, Singapore
| |
Collapse
|
37
|
Borhani TN, García-Muñoz S, Vanesa Luciani C, Galindo A, Adjiman CS. Hybrid QSPR models for the prediction of the free energy of solvation of organic solute/solvent pairs. Phys Chem Chem Phys 2019; 21:13706-13720. [PMID: 31204418 DOI: 10.1039/c8cp07562j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the importance of the Gibbs free energy of solvation in understanding many physicochemical phenomena, including lipophilicity, phase equilibria and liquid-phase reaction equilibrium and kinetics, there is a need for predictive models that can be applied across large sets of solvents and solutes. In this paper, we propose two quantitative structure property relationships (QSPRs) to predict the Gibbs free energy of solvation, developed using partial least squares (PLS) and multivariate linear regression (MLR) methods for 295 solutes in 210 solvents with total number of data points of 1777. Unlike other QSPR models, the proposed models are not restricted to a specific solvent or solute. Furthermore, while most QSPR models include either experimental or quantum mechanical descriptors, the proposed models combine both, using experimental descriptors to represent the solvent and quantum mechanical descriptors to represent the solute. Up to twelve experimental descriptors and nine quantum mechanical descriptors are considered in the proposed models. Extensive internal and external validation is undertaken to assess model accuracy in predicting the Gibbs free energy of solvation for a large number of solute/solvent pairs. The best MLR model, which includes three solute descriptors and two solvent properties, yields a coefficient of determination (R2) of 0.88 and a root mean squared error (RMSE) of 0.59 kcal mol-1 for the training set. The best PLS model includes six latent variables, and has an R2 value of 0.91 and a RMSE of 0.52 kcal mol-1. The proposed models are compared to selected results based on continuum solvation quantum chemistry calculations. They enable the fast prediction of the Gibbs free energy of solvation of a wide range of solutes in different solvents.
Collapse
Affiliation(s)
- Tohid N Borhani
- Centre for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK.
| | | | | | | | | |
Collapse
|
38
|
Di Lecce S, Lazarou G, Khalit SH, Adjiman CS, Jackson G, Galindo A, McQueen L. Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie. RSC Adv 2019; 9:38017-38031. [PMID: 35541791 PMCID: PMC9075776 DOI: 10.1039/c9ra07057e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 05/22/2020] [Accepted: 10/25/2019] [Indexed: 12/18/2022] Open
Abstract
Deep-eutectic solvents and room temperature ionic liquids are increasingly recognised as appropriate materials for use as active pharmaceutical ingredients and formulation additives. Aqueous mixtures of choline and geranate (CAGE), in particular, have been shown to offer promising biomedical properties but understanding the thermophysical behaviour of these mixtures remains limited. Here, we develop interaction potentials for use in the SAFT-γ Mie group-contribution approach, to study the thermodynamic properties and phase behaviour of aqueous mixtures of choline geranate and geranic acid. The determination of the interaction parameters between chemical functional groups is carried out in a sequential fashion, characterising each group based on those previously developed. The parameters of the groups relevant to geranic acid are estimated using experimental fluid phase-equilibrium data such as vapour pressure and saturated-liquid density of simple pure components (n-alkenes, branched alkenes and carboxylic acids) and the phase equilibrium data of mixtures (aqueous solutions of branched alkenes and of carboxylic acids). Geranate is represented by further incorporating the anionic carboxylate group, COO−, which is characterised using aqueous solution data of sodium carboxylate salts, assuming full dissociation of the salt in water. Choline is described by incorporating the cationic quaternary ammonium group, N+, using data for choline chloride solutions. The osmotic pressure of aqueous mixtures of CAGE at several concentrations is predicted and compared to experimental data obtained as part of our work to assess the accuracy of the modelling platform. The SAFT-γ Mie approach is shown to be predictive, providing a good description of the measured data for a wide range of mixtures and properties. Furthermore, the new group-interaction parameters needed to represent CAGE extend the set of functional groups of the group-contribution approach, and can be used in a transferable way to predict the properties of systems beyond those studied in the current work. The properties of aqueous solutions of the CAGE deep eutectic solvent are predicted with the SAFT-γ Mie approach.![]()
Collapse
Affiliation(s)
- Silvia Di Lecce
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Georgia Lazarou
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Siti H. Khalit
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Claire S. Adjiman
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - George Jackson
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Amparo Galindo
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | | |
Collapse
|
39
|
Evans R, Galindo A, Jackson G, Lynden-Bell R, Rotenberg B. Daan Frenkel — An entropic career. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1514685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Robert Evans
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Ruth Lynden-Bell
- University Chemical Laboratory, Cambridge University, Lensfield Road, Cambridge CB2 1EW, UK
| | - Benjamin Rotenberg
- Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, Sorbonne Université, CNRS, PHENIX, Paris F-75005, France
| |
Collapse
|
40
|
Herraiz I, Quezada MS, Rodriguez-Calvo J, Gómez-Montes E, Villalaín C, Galindo A. Longitudinal change of sFlt-1/PlGF ratio in singleton pregnancy with early-onset fetal growth restriction. Ultrasound Obstet Gynecol 2018; 52:631-638. [PMID: 28876491 DOI: 10.1002/uog.18894] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 08/10/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To describe the evolution of soluble fms-like tyrosine kinase-1 to placental growth factor (sFlt-1/PlGF) ratio in the last 5 weeks prior to delivery in singleton pregnancy complicated by early-onset fetal growth restriction (FGR), with or without pre-eclampsia (PE). METHODS This was a prospective observational cohort study of early-onset FGR cases that underwent serial assessment of maternal serum sFlt-1/PlGF ratio from diagnosis to delivery. Measurements were made at weekly intervals and within the last 48 h before birth. Absolute values and percentage increase between time intervals were computed, and previously described cut-off values of 38 (suspicion of PE), 85 (aids diagnosis of PE) and 655 (high risk for imminent delivery) were used for analysis of the sFlt-1/PlGF ratio. We compared findings between cases with early-onset FGR only (n = 37) and those that additionally developed PE (n = 36). RESULTS Overall perinatal survival was 63/73 (86.3%). A sFlt-1/PlGF ratio above 38 was observed 4 weeks before delivery in most FGR-only and FGR with PE cases (73% and 100%, respectively), but absolute values of sFlt-1/PlGF were significantly higher in FGR cases with PE. Extremely elevated values of the ratio (≥ 655) within the last 48 h before delivery were found in 65% of cases of FGR with PE, but in only 8% of isolated FGR cases (P < 0.001). CONCLUSION Elevated sFlt-1/PlGF was observed in most early-onset FGR pregnancies from 4 weeks before delivery, and values were even higher if there was concurrent PE. However, serial measurements of the ratio were of limited value, being useful only to anticipate the need for imminent delivery in cases of FGR with PE when sFlt-1/PlGF values ≥ 655 were reached. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- I Herraiz
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - M S Quezada
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - J Rodriguez-Calvo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - E Gómez-Montes
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - C Villalaín
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
41
|
Rahman S, Lobanova O, Jiménez-Serratos G, Braga C, Raptis V, Müller EA, Jackson G, Avendaño C, Galindo A. SAFT-γ Force Field for the Simulation of Molecular Fluids. 5. Hetero-Group Coarse-Grained Models of Linear Alkanes and the Importance of Intramolecular Interactions. J Phys Chem B 2018; 122:9161-9177. [DOI: 10.1021/acs.jpcb.8b04095] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sadia Rahman
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Olga Lobanova
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Guadalupe Jiménez-Serratos
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Carlos Braga
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Vasilios Raptis
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Erich A. Müller
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Carlos Avendaño
- School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| |
Collapse
|
42
|
Herraiz I, Simón E, Gómez-Arriaga PI, Quezada MS, García-Burguillo A, López-Jiménez EA, Galindo A. Clinical implementation of the sFlt-1/PlGF ratio to identify preeclampsia and fetal growth restriction: A prospective cohort study. Pregnancy Hypertens 2018; 13:279-285. [PMID: 30177066 DOI: 10.1016/j.preghy.2018.06.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/01/2018] [Accepted: 06/28/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To analyze the usefulness of a clinical protocol for early detection of preeclampsia and/or fetal growth restriction (PE/FGR) using, in previously selected pregnancies, the measurement of the sFlt-1/PlGF ratio at 24-28 weeks of gestation. STUDY DESIGN Prospective observational cohort study carried out in a single tertiary hospital in Spain. 5601 consecutive singleton pregnancies with complete follow-up were included. High-risk women for PE/FGR were selected by combining data from maternal history and second trimester uterine artery Doppler. Subsequently these patients underwent intensive monitoring, including the measurement of the sFlt-1/PlGF ratio at 24-28 weeks to predict PE/FGR. MAIN OUTCOME MEASURES Early, intermediate and late PE/FGR (delivery <32 + 0, 32 + 0 - <36 + 0 and ≥36 + 0 weeks, respectively). RESULTS Overall incidence of early, intermediate and late PE/FGR was 0.3%, 0.7% and 3.2%, respectively, being higher in the 4.3% of women selected for intensive monitoring: 5.8%, 8.7% and 15.4%, respectively (all p < 0.001). The area under the curve (AUC) with 95%CI of the sFlt-1/PlGF ratio for detecting early PE/FGR was 0.98 (0.97-1.00), and the sFlt-1/PlGF ratio >95th centile showed a sensitivity (%) of 100 (95%CI, 78.5-100) and specificity (%) of 80.6 (95%CI, 75.0-85.2). The AUC of the sFlt-1/PlGF ratio for detecting intermediate and late PE/FGR was of 0.87 (95%CI, 0.77-0.97) and 0.68 (95%CI, 0.58-0.79), respectively. CONCLUSION A contingent strategy of measuring the sFlt-1/PlGF ratio at 24-28 weeks in women previously selected by clinical factors and uterine artery Doppler enables an accurate prediction of PE/FGR. This performance is optimal to predict PE/FGR requiring delivery before 32 weeks.
Collapse
Affiliation(s)
- I Herraiz
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain.
| | - E Simón
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - P I Gómez-Arriaga
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - M S Quezada
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - A García-Burguillo
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - E A López-Jiménez
- Department of Clinical Biochemistry, Hospital Universitario 12 de Octubre, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit-Maternal and Child Health and Development Network (SAMID), Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre and Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
43
|
Ravipati S, Aymard B, Kalliadasis S, Galindo A. On the equilibrium contact angle of sessile liquid drops from molecular dynamics simulations. J Chem Phys 2018; 148:164704. [PMID: 29716213 DOI: 10.1063/1.5021088] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
We present a new methodology to estimate the contact angles of sessile drops from molecular simulations by using the Gaussian convolution method of Willard and Chandler [J. Phys. Chem. B 114, 1954-1958 (2010)] to calculate the coarse-grained density from atomic coordinates. The iso-density contour with average coarse-grained density value equal to half of the bulk liquid density is identified as the average liquid-vapor (LV) interface. Angles between the unit normal vectors to the average LV interface and unit normal vector to the solid surface, as a function of the distance normal to the solid surface, are calculated. The cosines of these angles are extrapolated to the three-phase contact line to estimate the sessile drop contact angle. The proposed methodology, which is relatively easy to implement, is systematically applied to three systems: (i) a Lennard-Jones (LJ) drop on a featureless LJ 9-3 surface; (ii) an SPC/E water drop on a featureless LJ 9-3 surface; and (iii) an SPC/E water drop on a graphite surface. The sessile drop contact angles estimated with our methodology for the first two systems are shown to be in good agreement with the angles predicted from Young's equation. The interfacial tensions required for this equation are computed by employing the test-area perturbation method for the corresponding planar interfaces. Our findings suggest that the widely adopted spherical-cap approximation should be used with caution, as it could take a long time for a sessile drop to relax to a spherical shape, of the order of 100 ns, especially for water molecules initiated in a lattice configuration on a solid surface. But even though a water drop can take a long time to reach the spherical shape, we find that the contact angle is well established much faster and the drop evolves toward the spherical shape following a constant-contact-angle relaxation dynamics. Making use of this observation, our methodology allows a good estimation of the sessile drop contact angle values even for moderate system sizes (with, e.g., 4000 molecules), without the need for long simulation times to reach the spherical shape.
Collapse
Affiliation(s)
- Srikanth Ravipati
- Complex Multiscale Systems Group, Department of Chemical Engineering, Imperial College London, South Kensington, SW7 2AZ London, United Kingdom
| | - Benjamin Aymard
- Complex Multiscale Systems Group, Department of Chemical Engineering, Imperial College London, South Kensington, SW7 2AZ London, United Kingdom
| | - Serafim Kalliadasis
- Complex Multiscale Systems Group, Department of Chemical Engineering, Imperial College London, South Kensington, SW7 2AZ London, United Kingdom
| | - Amparo Galindo
- Molecular Systems Engineering Group, Department of Chemical Engineering, Imperial College London, South Kensington, SW72AZ London, United Kingdom
| |
Collapse
|
44
|
Bellido C, Barbero P, Forcén L, Blanco M, Alonso-Riaño M, Galindo A. Lung adenocarcinoma during pregnancy: clinical case and literature review. J Matern Fetal Neonatal Med 2018; 32:3300-3302. [PMID: 29618241 DOI: 10.1080/14767058.2018.1461830] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Lung cancer during pregnancy is a very rare disease with less than 70 cases published to date. Information about specific lung cancer as adenocarcinoma is even more limited. Genetic techniques can detect oncogene mutations which seem to be more frequent among cases of lung cancer in pregnant women and could determine both the treatment and prognosis. We present a recent case seen at our hospital and a literature review.
Collapse
Affiliation(s)
- C Bellido
- a Department of Obstetrics and Gynaecology , University Hospital 12 de Octubre, Complutense University of Madrid , Madrid , Spain
| | - P Barbero
- a Department of Obstetrics and Gynaecology , University Hospital 12 de Octubre, Complutense University of Madrid , Madrid , Spain
| | - L Forcén
- a Department of Obstetrics and Gynaecology , University Hospital 12 de Octubre, Complutense University of Madrid , Madrid , Spain
| | - M Blanco
- b Department of Pathology , University Hospital 12 de Octubre, Complutense University of Madrid , Madrid , Spain
| | - M Alonso-Riaño
- b Department of Pathology , University Hospital 12 de Octubre, Complutense University of Madrid , Madrid , Spain
| | - A Galindo
- c Department of Obstetrics and Gynecology , University Hospital 12 de Octubre, Maternal and Child Health and Development Network (Red SAMID-RD12/0026/0016), 12 de Octubre Research Institute (imas12), Complutense University of Madrid , Madrid , Spain
| |
Collapse
|
45
|
Rodríguez-Almaraz ME, Herraiz I, Gómez-Arriaga PI, Vallejo P, Gonzalo-Gil E, Usategui A, López-Jiménez EA, Galindo A, Galindo M. The role of angiogenic biomarkers and uterine artery Doppler in pregnant women with systemic lupus erythematosus or antiphospholipid syndrome. Pregnancy Hypertens 2018. [PMID: 29523283 DOI: 10.1016/j.preghy.2018.01.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To evaluate the usefulness of the uterine artery mean pulsatility index (mPI-UtA) and the sFlt-1/PlGF ratio in women with systemic lupus erythematosus (SLE) or antiphospholipid syndrome (APS) for the prediction of placental dysfunction-related adverse outcomes (AO), namely pre-eclampsia (PE) and intrauterine growth restriction (IUGR), and for differential diagnosis between PE and SLE flares. STUDY DESIGN Observational prospective cohort study of 57 pregnant women with SLE or APS. MAIN OUTCOME MEASURES mPI-UtA and sFlt-1/PlGF ratio in maternal serum were obtained at four gestational age periods (11-14, 19-22, 24-29 and 32-34 weeks). Comparisons among pregnancies with normal outcome, SLE flare and AO were performed. RESULTS Overall, we had 44 ongoing pregnancies (36 with SLE and 8 with APS) of which most (n = 35, 80%) were uncomplicated. The overall rate of AO was 9% (n = 4), that was diagnosed at a mean (SD) gestational age of 34.1 (7.5) weeks. Five SLE patients (14%) suffered a SLE flare. No differences for these markers were found between normal pregnancies and those affected by SLE flare. mUtA-PI values were significantly higher in the AO group when compared with normal and SLE flare groups, at 19-22 weeks (1.52, 0.95 and 0.76) and 32-34 weeks (1.13, 0.68 and 0.65), respectively. The sFlt-1/PlGF ratio was significantly higher in the AO group at 24-29 weeks (191.1, 3.1 and 9.2), respectively. CONCLUSION Our preliminary results indicate that mPI-UtA and sFlt1/PlGF ratio may be useful to predict AO in women with SLE, and to make the differential diagnosis with a lupus flare.
Collapse
Affiliation(s)
- M E Rodríguez-Almaraz
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - I Herraiz
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain.
| | - P I Gómez-Arriaga
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - P Vallejo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - E Gonzalo-Gil
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - A Usategui
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - E A López-Jiménez
- Department of Biochemistry, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - A Galindo
- Fetal Medicine Unit-SAMID, Department of Obstetrics and Gynaecology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| | - M Galindo
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre (imas12), Universidad Complutense, Madrid, Spain
| |
Collapse
|
46
|
Zhao B, Lindeboom T, Benner S, Jackson G, Galindo A, Hall CK. Predicting the Fluid-Phase Behavior of Aqueous Solutions of ELP (VPGVG) Sequences Using SAFT-VR. Langmuir 2017; 33:11733-11745. [PMID: 28789526 DOI: 10.1021/acs.langmuir.7b02249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The statistical associating fluid theory for potentials of variable range (SAFT-VR) is used to predict the fluid phase behavior of elastin-like polypeptide (ELP) sequences in aqueous solution with special focus on the loci of lower critical solution temperatures (LCSTs). A SAFT-VR model for these solutions is developed following a coarse-graining approach combining information from atomistic simulations and from previous SAFT models for previously reported relevant systems. Constant-pressure temperature-composition phase diagrams are determined for solutions of (VPGVG)n sequences + water with n = 1 to 300. The SAFT-VR equation of state lends itself to the straightforward calculation of phase boundaries so that complete fluid-phase equilibria can be calculated efficiently. A broad range of thermodynamic conditions of temperature and pressure are considered, and regions of vapor-liquid and liquid-liquid coexistence, including LCSTs, are found. The calculated phase boundaries at low concentrations match those measured experimentally. The temperature-composition phase diagrams of the aqueous ELP solutions at low pressure (0.1 MPa) are similar to those of types V and VI phase behavior in the classification of Scott and van Konynenburg. An analysis of the high-pressure phase behavior confirms, however, that a closed-loop liquid-liquid immiscibility region, separate from the gas-liquid envelope, is present for aqueous solutions of (VPGVG)30; such a phase diagram is typical of type VI phase behavior. ELPs with shorter lengths exhibit both liquid-liquid and gas-liquid regions, both of which become less extensive as the chain length of the ELP is decreased. The strength of the hydrogen-bonding interaction is also found to affect the phase diagram of the (VPGVG)30 system in that the liquid-liquid and gas-liquid regions expand as the hydrogen-bonding strength is decreased and shrink as it is increased. The LCSTs of the mixtures are seen to decrease as the ELP chain length is increased.
Collapse
Affiliation(s)
- Binwu Zhao
- Department of Chemical and Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27606, United States
| | - Tom Lindeboom
- Department of Chemical Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| | - Steven Benner
- Department of Chemical and Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27606, United States
| | - George Jackson
- Department of Chemical Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| | - Carol K Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27606, United States
| |
Collapse
|
47
|
Hutacharoen P, Dufal S, Papaioannou V, Shanker RM, Adjiman CS, Jackson G, Galindo A. Predicting the Solvation of Organic Compounds in Aqueous Environments: From Alkanes and Alcohols to Pharmaceuticals. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00899] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Panatpong Hutacharoen
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Simon Dufal
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Vasileios Papaioannou
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Ravi M. Shanker
- Pfizer
Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Claire S. Adjiman
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Amparo Galindo
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| |
Collapse
|
48
|
|
49
|
Diamanti A, Adjiman CS, Piccione PM, Rea AM, Galindo A. Development of Predictive Models of the Kinetics of a Hydrogen Abstraction Reaction Combining Quantum-Mechanical Calculations and Experimental Data. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aikaterini Diamanti
- Centre
for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Claire S. Adjiman
- Centre
for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Patrick M. Piccione
- Process
Studies Group, Technology and Engineering, Syngenta, Breitenloh
5, 4333 Münchwilen, Switzerland
| | - Anita M. Rea
- Process
Studies Group, Technology and Engineering, Syngenta, Jealotts Hill International Research Center, Bracknell, Berkshire RG42
6EY, United Kingdom
| | - Amparo Galindo
- Centre
for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| |
Collapse
|
50
|
Domínguez-Manzano P, Herraiz I, Mendoza A, Aguilar JM, Escribano D, Toral B, Gómez-Montes E, Galindo A. Impact of prenatal diagnosis of transposition of the great arteries on postnatal outcome. J Matern Fetal Neonatal Med 2016; 30:2858-2863. [DOI: 10.1080/14767058.2016.1265934] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- P. Domínguez-Manzano
- Department of Pediatrics, Pediatric Heart Institute, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - I. Herraiz
- Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Hospital Universitario 12 de Octubre, Facultad de Medicina, Universidad Complutense de Madrid, Spain
| | - A. Mendoza
- Department of Pediatrics, Pediatric Heart Institute, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - J. M. Aguilar
- Department of Pediatrics, Pediatric Heart Institute, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - D. Escribano
- Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Hospital Universitario 12 de Octubre, Facultad de Medicina, Universidad Complutense de Madrid, Spain
| | - B. Toral
- Department of Pediatrics, Pediatric Heart Institute, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - E. Gómez-Montes
- Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Hospital Universitario 12 de Octubre, Facultad de Medicina, Universidad Complutense de Madrid, Spain
| | - A. Galindo
- Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Hospital Universitario 12 de Octubre, Facultad de Medicina, Universidad Complutense de Madrid, Spain
| |
Collapse
|