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Levers K, Galvan E, Coletta A, Dalton R, Jung Y, O'Connor A, Goodenough C, Simbo S, Seesselberg C, Bonin B, Koozehchian M, Sanchez B, Barringer N, Rasmussen C, Greenwood M, Kreider R. Assessment of factors related to carbohydrate intolerance I: OGTT glucose AUC (LB299). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.lb299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Goodenough C, Levers K, Galvan E, Coletta A, Dalton R, Jung Y, O'Connor A, Simbo S, Seesselberg C, Bonin B, Koozehchian M, Sanchez B, Barringer N, Rasmussen C, Greenwood M, Kreider R. Analysis of the validity of a carbohydrate intolerance questionnaire II (LB304). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.lb304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Galvan E, Levers K, Coletta A, Dalton R, Jung Y, O'Connor A, Goodenough C, Simbo S, Seesselberg C, Bonin B, Koozehchian M, Sanchez B, Barringer N, Rasmussen C, Greenwood M, Kreider R. Assessment of factors related to carbohydrate intolerance II: OGTT glucose at 120 minutes (LB298). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.lb298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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O'Connor A, Levers K, Galvan E, Coletta A, Dalton R, Jung YP, Goodenough C, Simbo S, Seesselberg C, Bonin B, Koozehchian M, Sanchez B, Barringer N, Rasmussen C, Greenwood M, Kreider R. Analysis of the validity of a carbohydrate intolerance questionnaire I (LB305). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.lb305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schäfer M, Barthold-Beß S, Debus J, Gebauer-Hötzel L, Jäkel O, Sanchez B, Schlegel W. Designing and establishing an international Double Degree Master’s program in Medical Physics – the International Master “Clinical Medical Physics” (CMP) at Pontificia Universidad Catolica de Chile (PUC) and Heidelberg University, Germany (UHD). Phys Med 2014. [DOI: 10.1016/j.ejmp.2014.07.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Dalton R, Baetge C, Lockard B, Levers K, Galvan E, Jagim A, Simbo S, Byrd M, Jung Y, Oliver JM, Koozehchian M, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Analysis of efficacy and cost effectiveness of popular weight loss and fitness programs. J Int Soc Sports Nutr 2013. [PMCID: PMC4044687 DOI: 10.1186/1550-2783-10-s1-p4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Byrd M, Simbo S, Jung YP, Sanchez B, Cho M, Lee CW, Lockard B, Baetge C, Levers K, Galvan E, Jagim A, Oliver JM, Dalton R, Bessire B, Horrell K, Leopold T, Koozehchian M, Khanna D, Shimkus K, Gapinsky W, Perez M, Hart J, Riechman S, Fluckey J, Greenwood M, Rasmussen C, Kreider R. Effects of immediate and delayed nutrient timing following resistance exercise on changes in mixed muscle fractional synthesis rate (FSR) in post-menopausal women participating in a weight loss program. J Int Soc Sports Nutr 2013. [PMCID: PMC4042233 DOI: 10.1186/1550-2783-10-s1-p3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Levers K, Simbo S, Lockard B, Baetge C, Galvan E, Byrd M, Jung YP, Jagim A, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Effects of exercise and diet-induced weight loss on markers of inflammation I: impact on body composition and markers of health and fitness. J Int Soc Sports Nutr 2013. [PMCID: PMC4043654 DOI: 10.1186/1550-2783-10-s1-p15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Masip J, De Mendoza D, Planas K, Paez J, Sanchez B, Cancio B. Peripheral venous blood gases and pulse-oximetry in acute cardiogenic pulmonary oedema. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2013; 1:275-80. [PMID: 24062917 DOI: 10.1177/2048872612457087] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 07/15/2012] [Indexed: 11/15/2022]
Abstract
BACKGROUND The role of venous blood gases as an alternative to arterial blood gases in patients with severe acute heart failure has not been established. OBJECTIVE To assess the correlation between arterial and peripheral venous blood gases together with pulse-oximetry (SpO2), as well as to estimate arterial values from venous samples in the first hours upon admission of patients with acute cardiogenic pulmonary oedema. METHODS Simultaneous venous and arterial blood samples were extracted on admission and over the next 1, 2, 3, 4, and 10 hours. SpO2 was also registered at the same intervals. RESULTS A total of 178 pairs of samples were obtained from 34 consecutive patients with acute cardiogenic pulmonary oedema. Arterial and venous blood gases followed a parallel course in the first hours, showing high correlation rates at all time intervals. Venous samples underestimated pH (mean difference -0.028) and overestimated CO2 (+5.1 mmHg) and bicarbonate (+1 mEq/l). Conversely, SpO2 tended to underestimate SaO2 (mean±SD: 93.1±9.1 vs. 94.2±8.4). Applying simple mathematical formulae based on these differences, arterial values were empirically calculated from venous samples, showing acceptable agreement in the Bland-Altman test. Likewise, a venous pH <7.32, pCO2 >51.3 mmHg, and bicarbonate <22.8 mEq/l could fairly identify arterial acidosis, either respiratory or metabolic, with a test accuracy of 92, 68, and 91%, respectively. CONCLUSIONS In patients with cardiogenic pulmonary oedema, arterial blood gas disturbances may be estimated from peripheral venous samples. By monitoring SpO2 simultaneously, arterial punctures could often be avoided.
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Sanchez B, Louarroudi E, Bragos R, Pintelon R. Harmonic impedance spectra identification from time-varying bioimpedance: theory and validation. Physiol Meas 2013; 34:1217-38. [DOI: 10.1088/0967-3334/34/10/1217] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sanchez B, Vandersteen G, Martin I, Castillo D, Torrego A, Riu PJ, Schoukens J, Bragos R. Minimally invasive in vivo human lung tissue bioimpedance measurements during the bronchoscopy procedure. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2012:130-3. [PMID: 23365849 DOI: 10.1109/embc.2012.6345888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Respiratory diseases, which include diseases of the lung, pleura, bronchial tree, trachea, upper respiratory tract and of the respiratory muscles and nerves, are a common and important cause of illness and death among the population. Experimental evidences have shown that tissue lesions have different electrical properties compared with normal tissue. Therefore, lung tissues lesions may be differentiated from lung normal tissue by comparing the tissue passive electrical properties. The manuscript reports a feasibility study for minimally invasive in vivo human lung tissue tetrapolar bioimpedance measurements using a catheter during the bronchoscopy procedure based on multisine Electrical Impedance Spectroscopy (EIS) at 10 kHz - 1 MHz.
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Castells-Sala C, Sanchez B, Recha-Sancho L, Puig V, Bragos R, Semino CE. Influence of electrical stimulation on 3D-cultures of adipose tissue derived progenitor cells (ATDPCs) behavior. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2012:5658-61. [PMID: 23367213 DOI: 10.1109/embc.2012.6347278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Tissue engineering has a fundamental role in regenerative medicine. Still today, the major motivation for cardiac regeneration is to design a platform that enables the complete tissue structure and physiological function regeneration of injured myocardium areas. Although tissue engineering approaches have been generally developed for two-dimensional (2D) culture systems, three-dimensional (3D) systems are being spotlighted as the means to mimic better in vivo cellular conditions. This manuscript examines the influence of electrical stimulation on 3D cultures of adipose tissue-derived progenitor cells (ATDPCs). ATDPCs cells were encapsulated into a self-assembling peptide nanoscaffold (RAD16-I) and continuously electro stimulated during 14-20 days with 2-ms pulses of 50mV/cm at a frequency of 1 Hz. Good cellular network formation and construct diameter reduction was observed in electro stimulated samples. Importantly, the process of electro stimulation does not disrupt cell viability or connectivity. As a future outlook, differentiation studies to cardiomyocytes-like cells will be performed analyzing gene profile and protein expression.
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Sanchez B, Praveen A, Bartolome E, Soundarapandian K, Bragos R. Minimal implementation of an AFE4300-based spectrometer for electrical impedance spectroscopy measurements. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/434/1/012014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Galvan E, Lockard B, Baetge C, Levers K, Jagim A, Simbo S, Byrd M, Jung YP, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Women who participate in a structured weight loss program with resistance‐exercise experience more favorable changes in blood lipids when compared to other popular weight loss programs. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Byrd M, Jung YP, Lockard B, Baetge C, Levers K, Galvan E, Jagim A, Simbo S, Oliver JM, Koozechian M, Khanna D, Dalton R, Sanchez B, Horrell K, Leopold T, Cho M, Fluckey J, Riechman S, Greenwood M, Hart J, Shimkus K, Gapinski W, Perez M, Bessire B, Rasmussen C, Kreider R. Effects of nutrient timing following resistance‐exercise on changes in body composition in post‐menopausal women participating in weight loss program. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Peterson KE, Dolinoy D, Burant C, Lee J, Sanchez B, Zhang Z, Yang TC, Goodrich J, Ettinger A, Meeker J, Hu H, Solano M, Wang N, Tellez‐Rojo MM. Association of Lead Exposure and Untargeted Metabolomics with BMI and Hormones in Adolescence. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1073.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Levers K, Lockard B, Baetge C, Galvan E, Jagim A, Simbo S, Byrd M, Jung YP, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Adding access to online meal plans and monitoring to a structured weight loss program with resistance‐exercise promotes more positive changes in triglycerides. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Baetge C, Lockard B, Levers K, Galvan E, Jagim A, Simbo S, Byrd M, Jung YP, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Adding access to online meal plans and monitoring improves success to a structured weight loss program with resistance‐exercise in women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lockard B, Baetge C, Levers K, Galvan E, Jagim A, Simbo S, Byrd M, Jung YP, Oliver J, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta J, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Women who participate in a structured weight loss program with resistance‐exercise experience more favorable changes in body composition when compared to other popular weight loss programs. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jagim A, Byrd M, Lockard B, Baetge C, Levers K, Galvan E, Simbo S, Jung YP, Oliver J, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta J, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Adherence to a high protein and low fat energy‐restricted diet while participating in a circuit resistance‐exercise program promotes positive changes in blood glucose and lipids in postmenopausal women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Simbo S, Lockard B, Baetge C, Levers K, Galvan E, Jagim A, Byrd M, Jung YP, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Effects of participation in popular weight loss and fitness programs on markers of health and fitness in women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Dalton R, Lockard B, Baetge C, Levers K, Galvan E, Jagim A, Simbo S, Byrd M, Jung YP, Oliver JM, Koozehchian M, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Effects of participation in popular weight loss and fitness programs on insulin and leptin in women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jung YP, Byrd M, Baetge C, Lockard B, Levers K, Galvan E, Jagim A, Simbo S, Oliver JM, Koozehchian M, Dalton R, Khanna D, Sanchez B, Kresta JY, Horrell K, Leopold T, Cho M, Springer S, Rivera A, Cerda C, Rasmussen C, Kreider R. Adherence to a high protein and low fat energy‐restricted diet while participating in a circuit resistance‐exercise program promotes fat loss with no loss in fat free mass in postmenopausal women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sanchez B, Louarroudi E, Jorge E, Cinca J, Bragos R, Pintelon R. A new measuring and identification approach for time-varying bioimpedance using multisine electrical impedance spectroscopy. Physiol Meas 2013; 34:339-57. [PMID: 23442821 DOI: 10.1088/0967-3334/34/3/339] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The bioimpedance measurement/identification of time-varying biological systems Z(ω, t) by means of electrical impedance spectroscopy (EIS) is still a challenge today. This paper presents a novel measurement and identification approach, the so-called parametric-in-time approach, valid for time-varying (bio-)impedance systems with a (quasi) periodic character. The technique is based on multisine EIS. Contrary to the widely used nonparametric-in-time strategy, the (bio-)impedance Z(ω, t) is assumed to be time-variant during the measurement interval. Therefore, time-varying spectral analysis tools are required. This new parametric-in-time measuring/identification technique has experimentally been validated through three independent sets of in situ measurements of in vivo myocardial impedance. We show that the time-varying myocardial impedance Z(ω, t) is dominantly periodically time varying (PTV), denoted as ZPTV(ω, t). From the temporal analysis of ZPTV(ω, t), we demonstrate that it is possible to decompose ZPTV(ω, t) into a(n) (in)finite sum of fundamental (bio-)impedance spectra, the so-called harmonic impedance spectra (HIS) Zk(ω)s with [Formula: see text]. This is similar to the well-known Fourier series of a periodic signal, but now understood at the level of a periodic system's frequency response. The HIS Zk(ω)s for [Formula: see text] actually summarize in the bi-frequency (ω, k) domain all the temporal in-cycle information about the periodic changes of Z(ω, t). For the particular case k = 0 (i.e. on the ω-axis), Z0(ω) reflects the mean in-cycle behavior of the time-varying bioimpedance. Finally, the HIS Zk(ω)s are directly identified from noisy current and voltage myocardium measurements at the multisine measurement frequencies (i.e. nonparametric-in-frequency).
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Llucià-Valldeperas A, Sanchez B, Soler-Botija C, Gálvez-Montón C, Prat-Vidal C, Roura S, Rosell-Ferrer J, Bragos R, Bayes-Genis A. Electrical stimulation of cardiac adipose tissue-derived progenitor cells modulates cell phenotype and genetic machinery. J Tissue Eng Regen Med 2013; 9:E76-83. [DOI: 10.1002/term.1710] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 11/20/2012] [Accepted: 12/20/2012] [Indexed: 12/25/2022]
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