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Justo AA, Pereira Dutra GH, Alfonso A, Silva GO, Pogliani FC, Carregaro AB, Gaido Cortopassi SR. Echoanatomical Features of the Major Cervical Blood Vessels of the Juvenile Green Sea Turtle (Chelonia mydas). Chelonian Conservation and Biology 2022. [DOI: 10.2744/ccb-1517.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- André Augusto Justo
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, São Paulo 05508-270, Brazil [; ]
| | | | - Angélica Alfonso
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo 18618-681, Brazil []
| | - Gabriel Oliveira Silva
- Veterinary Unit of the Santos Aquarium, Santos Aquarium, Santos, São Paulo 11030-500, Brazil [; ]
| | - Fabio Celidonio Pogliani
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, São Paulo 05508-270, Brazil []
| | - Adriano Bonfim Carregaro
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), Pirassununga, São Paulo 13635-900, Brazil []
| | - Silvia Renata Gaido Cortopassi
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, São Paulo 05508-270, Brazil [; ]
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Hibaru VY, Pereira KHNP, Fuchs KDM, Lopes MD, Alfonso A, de Souza FF, Chiacchio SB, Tsunemi MH, Machado LHDA, Lourenço MLG. Topics in the routine assessment of newborn kitten vitality: Apgar score, reflexes and complementary assessments. J Feline Med Surg 2022; 24:e34-e42. [PMID: 35352984 DOI: 10.1177/1098612x221081404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The aim of this study was to perform neonatal clinical assessments at birth to identify newborn kittens at risk according to type of delivery, thus allowing immediate intervention and increasing their chances of survival. METHODS This study compared Apgar scores, reflexes and clinical parameters (temperature, weight, blood glucose and peripheral oxygen saturation [SpO2]) between eutocic neonates and those delivered by emergency cesarean section. The animals were evaluated at birth and after 10 and 60 mins. RESULTS Thirty-two neonates were evaluated, with 19 animals in the eutocic group (EG) and 13 animals in the cesarean group (CG). When comparing groups, CG neonates had significantly lower Apgar scores (P <0.0001), lower SpO2 (P = 0.0535), higher blood glucose (P = 0.0009), reduced reflexes (P <0.0001) and lower respiratory rates (P <0.0001) at birth and after 10 and 60 mins than EG neonates. Apgar scores positively correlated with parameters such as heart rate, reflex score, SpO2 and weight. The mortality rate in evaluated newborns was 15.6% (5/32). The early mortality rate (0-2 days old) was 80% (4/5) and the late mortality rate (3-30 days old) was 20% (1/5). CONCLUSIONS AND RELEVANCE This study showed lower vitality in cats delivered by emergency cesarean section than in those delivered through eutocic birth. In general, neonates delivered by cesarean section have greater depression and low vitality at birth and may require advanced resuscitation procedures. The evaluations carried out in this study identified newborns with low vitality and those requiring advanced resuscitation, thus allowing immediate intervention. Apgar and reflex scores for feline neonates were suggested. Newborn-specific clinical assessment with these feline vitality scores allows the identification of at-risk neonates. Care immediately after birth increases the chance of survival among these patients.
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Affiliation(s)
- Viviane Yukari Hibaru
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Keylla Helena Nobre Pacífico Pereira
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Kárita da Mata Fuchs
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Maria Denise Lopes
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Angélica Alfonso
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Fabiana Ferreira de Souza
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Simone Biagio Chiacchio
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Luiz Henrique de Araújo Machado
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Maria Lucia Gomes Lourenço
- Veterinary Neonatology Research Group, Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
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Ribeiro VRF, Ramos AF, Alfonso A, Hippolito AG, Lima HC, Codognoto VM, Silva DCS, Tsunemi MH, Neto ML, Melchert A, Okamoto PTCG, Machado LHA, Lourenço MLG. Normal echocardiographic and radiographic reference values for crab-eating fox (Cerdocyon thous) anesthetized with ketamine and midazolam. Vet Res Commun 2022; 46:961-965. [PMID: 35088191 DOI: 10.1007/s11259-022-09892-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/19/2022] [Indexed: 11/30/2022]
Abstract
The cardiac evaluation of wild animals is still a wide and largely unknown field for several species. Therefore, through complimentary examinations such as radiography, echocardiography and serum troponin levels, this study aimed at describing the values observed in 12 crab-eating foxes (Cerdocyon thous) anesthetized with a combination of intramuscular ketamine and midazolam. Thus, through complementary exams such as radiography, echocardiography and serum troponin levels, the aim of this study was to describe the cardiac values in 12 wild foxes (C. thous) anesthetized with an intramuscular injection of ketamine and midazolam. After anaesthetization, the radiographic, echocardiographic and immunoenzymatic reference values for the 12 males in the sample group were determined. Compared with those in domestic canids, there was a decrease in the sizes of the septum, wall and left ventricular cavity as well as decreases in the transmitral blood flow velocity indices, correlated with preserved serum cardiac troponin (cTnI) levels. Thus, M-mode echocardiography proved to be safer, with results that were comparative to those for other species of wild canids with indexed values. In addition, when evaluating the systolic function and segmentary contractions, the anesthetic combination did not have any effects on the results of complementary examinations performed in crab-eating foxes (C. thous) included in this study.
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Affiliation(s)
- Victor R F Ribeiro
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil.
| | - Ariana F Ramos
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Angélica Alfonso
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | | | - Heloísa C Lima
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Viviane M Codognoto
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | | | - Miriam H Tsunemi
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Moacir L Neto
- Pontifical Catholic University (Pontifical Catholic University-PUC-MG), Poços de Caldas, Minas Gerais, Brazil
| | - Alessandra Melchert
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Priscylla T C G Okamoto
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Luiz H A Machado
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
| | - Maria L G Lourenço
- São Paulo State University (Universidade Estadual Paulista - UNESP), Botucatu, São Paulo, Brazil
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Brañas-Garza P, Jorrat D, Alfonso A, Espín AM, Muñoz TG, Kovářík J. Exposure to the COVID-19 pandemic environment and generosity. R Soc Open Sci 2022; 9:210919. [PMID: 35070340 PMCID: PMC8753156 DOI: 10.1098/rsos.210919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 12/09/2021] [Indexed: 05/30/2023]
Abstract
We report data from an online experiment which allows us to study how generosity changed over a 6-day period during the initial explosive growth of the COVID-19 pandemic in Andalusia, Spain, while the country was under a strict lockdown. Participants (n = 969) could donate a fraction of a €100 prize to an unknown charity. Our data are particularly rich in the age distribution and we complement them with daily public information about COVID-19-related deaths, infections and hospital admissions. We find correlational evidence that donations decreased in the period under study, particularly among older individuals. Our analysis of the mechanisms behind the detected decrease in generosity suggests that expectations about others' behaviour, perceived mortality risk and (alarming) information play a key-but independent-role for behavioural adaptation. These results indicate that social behaviour is quickly adjusted in response to the pandemic environment, possibly reflecting some form of selective prosociality.
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Affiliation(s)
- P. Brañas-Garza
- Loyola Behavioral Lab & Department of Economics, Universidad Loyola Andalucía, Sevilla, Spain
| | - D. Jorrat
- Loyola Behavioral Lab & Department of Economics, Universidad Loyola Andalucía, Sevilla, Spain
| | - A. Alfonso
- Loyola Behavioral Lab & Department of Economics, Universidad Loyola Andalucía, Sevilla, Spain
| | - A. M. Espín
- Department of Anthropology, Universidad de Granada, Spain
| | - T. García Muñoz
- Department of Quantitative Economics, Universidad de Granada, Spain
| | - J. Kovářík
- Universidad del País Vasco UPV-EHU, Bilbao, Spain
- CERGE-EI, Prague, Czech Republic
- Faculty of Economics and Faculty of Arts, University of West Bohemia, Pilsen, Czech Republic
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Gonzalez Juanatey C, Bayon J, Ocaranza-Sanchez R, Santas-Alvarez M, Abellas-Sequeiros A, Alfonso A, Botana L. Increase of serum cyclophilin C levels in the follow-up of coronary artery disease: a biomarker and possible clinical predictor. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Traditional cardiovascular risk factors and a large number of biomarkers are well known in their association with the diagnosis and prognosis of coronary artery disease (CAD). Cyclophilin C (CypC) is a subfamily of immunophilins that modulates macrophage activation and redox homeostasis.
Purpose
This study is aimed at investigating the changes in serum CypC levels and their relationship with cardiovascular events at 12 months of follow-up in CAD patients.
Methods
The study included a total of 125 subjects (40 patients with acute CAD, 40 patients with chronic CAD and 45 control volunteers). We analyzed plasma CypC levels from baseline to 6 and 12 months for a better understanding of its behaviour in atherosclerosis.
Results
Serum CypC levels were shown to be gradually increased in CAD patients [(30.63 pg/mL ± 3.77 at baseline, 38.70 pg/mL ± 6.41 at 6 months (p=0.25) and 47.27 pg/mL ± 5.65 at 12 months (p=0.007)]. In addition, serum CypC levels during the follow-up were a significant predictor of CAD (c- statistic 0.76 at 6 months and 0.89 at 12 months; p<0.001). Despite it, there was no significant association between CypC and cardiovascular events, but serum CypC levels tended to be higher in patients suffering cardiovascular events during the follow-up (29.02 pg/mL ± 6.39 vs 79.96 pg/mL ± 22.18; p=0.029). In this regard, plasma levels of hsCRP >2.3 mg/L plus NT-proBNP >300pg/mL together were significant predictors of cardiovascular events during the follow-up in CAD patients with CypC levels >17.5 pg/mL (p=0.048).
Conclusions
Taken together, our results suggest that serum CypC levels increase during the follow-up in CAD patients and could be a novel biomarker with a possible prognostic value in combination with hsCRP and NT-proBNP.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Instituto de Salud Carlos III. Spain
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Affiliation(s)
| | - J Bayon
- University Hospital Lucus Augusti, Lugo, Spain
| | | | | | | | - A Alfonso
- School of Veterinary, Universidad de Santiago de Compostela, Pharmacology, Lugo, Spain
| | - L Botana
- School of Veterinary, Universidad de Santiago de Compostela, Pharmacology, Lugo, Spain
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Molero A, Gallur L, Tazón-Vega B, Saumell S, Solas TJ, Ezponda T, Montoro J, Sánchez-Ruiz C, López F, Alfonso A, Salamero O, Ortega M, Perez A, Peralta S, Díez-Campelo M, Prosper F, Bosch F, Valcárcel D. Topic: AS04-MDS Biology and Pathogenesis/AS04h-Immune deregulation. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Molero A, Tazón-Vega B, Gallur L, Saumell S, Solas TJ, Ezponda T, López F, Altimiras L, Montoro J, Sánchez-Ruiz C, Alfonso A, Salamero O, Ortega M, Perez A, Peralta S, Díez-Campelo M, Prosper F, Bosch F, Valcárcel D. Topic: AS04-MDS Biology and Pathogenesis/AS04h-Immune deregulation. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.30] [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: 11/24/2022]
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de Oliveira GCV, Teixeira-Neto FJ, Dalmagro TL, Alfonso A, Celeita-Rodríguez N, Lobo CPC, Lourenço MLG. Use of aortic flow indexes derived from transthoracic echocardiography to evaluate response to a fluid challenge in anesthetized dogs. Vet Anaesth Analg 2021; 48:187-197. [PMID: 33551352 DOI: 10.1016/j.vaa.2020.12.006] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To evaluate the ability of transthoracic echocardiographic aortic flow measurements to discriminate response to a fluid challenge (FC) in healthy anesthetized dogs. STUDY DESIGN Prospective experimental study. ANIMALS A total of 48 isoflurane-anesthetized dogs (14.2-35.0 kg) undergoing elective surgery. METHODS Fluid responsiveness was evaluated before surgery by FC (lactated Ringer's 10 mL kg-1 intravenously over 5 minutes). Percentage increases in transpulmonary thermodilution stroke volume (ΔSVTPTD) >15% from values recorded before FC defined responders to volume expansion. A group of 24 animals were assigned as nonresponders (ΔSVTPTD ≤15%). When ΔSVTPTD was >15% after the first FC, additional FC were administered until ΔSVTPTD was ≤15%. Final fluid responsiveness status was based on the response to the last FC. Percentage increases after FC in aortic flow indexes [velocity time integral (ΔVTIFC) and maximum acceleration (ΔVmaxFC)] and in mean arterial pressure (ΔMAPFC) were compared with ΔSVTPTD. RESULTS After one FC, 24 animals were responders. For nonresponders, ΔSVTPTD was ≤15% after one, two and three FCs in eight/24, 15/24 and one/24 animals, respectively. The FC that defined responsiveness increased ΔSVTPTD by 29 (18-53)% in responders and by 8 (-3 to 15)% in nonresponders [mean (range)]. The area under the receiver operating characteristics curve (AUROC) of ΔVTIFC (0.901) was larger than the AUROCs of ΔVmaxFC (0.774, p = 0.041) and ΔMAPFC (0.519, p < 0.0001). ΔMAPFC did not predict responsiveness (p = 0.826). Best cut-off thresholds for discriminating responders, with respective zones of diagnostic uncertainty (gray zones) were >14.7 (10.8-17.6)% for ΔVTIFC and >8.6 (-0.3 to 14.7)% for ΔVmaxFC. Animals within the gray zone were 17% (ΔVTIFC) and 50% (ΔVmaxFC). CONCLUSIONS AND CLINICAL RELEVANCE Changes in VTI induced by FC can determine responsiveness with reasonable accuracy in dogs and could play an important role in goal-directed fluid therapy.
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Affiliation(s)
- Guillermo C V de Oliveira
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Francisco J Teixeira-Neto
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil; Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil.
| | - Tábata L Dalmagro
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Angélica Alfonso
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Nathalia Celeita-Rodríguez
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - César P C Lobo
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Maria L G Lourenço
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
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Lee MJ, Sugiyama G, Alfonso A, Coppa GF, Chung PJ. It's not just an ileus: disparities associated with ileus following ventral hernia repair. Hernia 2020; 25:1021-1026. [PMID: 33211208 DOI: 10.1007/s10029-020-02339-8] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/04/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE We sought to identify risk factors associated with postoperative ileus following ventral hernia repair. METHODS Utilizing the Nationwide Inpatient Sample (NIS) from 2008 to 2012, we identified adult patients that underwent either open or laparoscopic hernia repair for umbilical and ventral hernias with a diagnosis of umbilical/ventral hernia. We excluded cases with diagnosis of obstruction and bowel gangrene that underwent bowel resection, or with missing data. Risk variables of interest were age, sex, race, income status, insurance status, elective admission, comorbidity status (using the validated van Walraven Score), complications (mechanical, respiratory, postoperative infection, cardiovascular, intraoperative), morbid obesity, procedure type, conversion to open, mesh use, hospital type (rural, urban non-teaching, urban teaching), bed size, and region (northeast, midwest, south, west). Univariate analysis comparing patients with ileus vs control was performed. We then performed multivariable analysis using logistic regression, adjusting for all the risk variables, with ileus as the dependent variable. RESULTS 30,912 patients were identified that met criteria. Of these, 2660 (8.61%) had postoperative ileus during their stay at the hospital. Univariate analysis showed all risk variables were associated with development of ileus with the exception of income status (p = 0.2903), elective admission (p = 0.7989), mesh use (p = 0.3620), and hospital bed size (p = 0.08351). Median length of stay was 7 days in the ileus cohort vs 3 days in control (p < 0.0001). Median total charges (adjusted to 2012 dollars) was $54,819 vs $35,058 (p < 0.0001). We then performed logistic regression adjusting for all risk variables and found that age (OR 1.66, p < 0.0001), male sex (OR 1.51, p < 0.0001), Black race (OR 1.49, p < 0.0001), comorbidity status (OR 1.12, p < 0.0001), laparoscopic cases converted to open (OR 1.55, p < 0.0001), postoperative complications (mechanical: OR 2.32, p < 0.0001, respiratory: OR 1.54, p < 0.0001, postoperative infection: OR 2.12, p < 0.0001, cardiovascular: OR 1.57, p = 0.0006, intraoperative: OR 1.29, p = 0.0200) were independently associated with increased risk of ileus. However, laparoscopic vs open (OR 0.76, p < 0.0001), elective admission (OR 0.91, p = 0.0378), and northeast vs south hospital region (OR 0.74, p < 0.0001) were independently associated with decreased risk of ileus. CONCLUSION We performed a large observational study looking for risk factors associated with ileus following ventral hernia repair. Race and region of treatment are independent risk factors associated with ileus following ventral hernia repair, and a potential source of disparities in care and increased admission length and higher cost of care. Further prospective studies are warranted.
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Affiliation(s)
- M J Lee
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA.
| | - G Sugiyama
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - A Alfonso
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - G F Coppa
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - P J Chung
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
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Quevedo D, Lourenço M, Bolaños C, Takahira R, Oba E, Alfonso A, Chiacchio S. Association between heart rate, heart rate variability, cortisol, glucose and electrolytes in healthy newborn calves. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-10461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT This study aims at evaluating the effects of electrolytes, glucose and cortisol levels over heart rate (HR) and heart rate variability (HRV) in healthy newborn calves. Seventeen healthy Holstein calves were evaluated during their first month of life, and the plasma concentrations of glucose, cortisol, calcium, magnesium, inorganic phosphorus, sodium and potassium were analyzed. HRV indexes were determined in the time and frequency domains through the analysis of neonatal electrocardiogram recordings. In the first day, low blood levels of phosphorus presented a strong correlation with the HR and the increased high-frequency components of HRV. The plasma concentrations of magnesium decreased significantly throughout the 35 days, revealing a positive association with a decreasing low-frequency components of HRV at day 28. There was a strong correlation between HR, HRV indexes, some plasma electrolytes, glucose and cortisol during the studied period. Variations in the concentrations and correlations observed may be attributed to the adaptive neonatal period in calves.
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Affiliation(s)
| | | | | | | | - E. Oba
- Universidade Estadual Paulista, Brazil
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11
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Aleixo A, Alfonso A, Fillippi M, Chiacchio S, Lourenço M. Retrospective study of allometric relationship between heart rate, electrocardiographic parameters and bodyweight in dogs. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-10407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The allometric relationship between bodyweight (BW) and heart rate (HR) has been described as inversely proportional in domestic species, but that has been refuted. The relationship between HR and electrocardiographic variables is described in literature. However, studies about the variation and influence of factors on the hemodynamic and electrocardiographic parameters in dogs are not abundant. As the metabolic rate is defined as the production and dissipation of heat by the body surface area (BSA) in m², it is essential to define that relationship. A retrospective study was conducted to analyze the correlation between HR, ECG parameters and BW in dogs. One thousand electrocardiographic tracings were analyzed in addition to the ECG parameters and clinical data such as gender, age and bodyweight. The determination of BSA was performed as follows: BSA (m2) = (10.1 x bodyweight 0.67) X 10-4. When the unified groups were analyzed, there was a negative but weak correlation (r= -0.14, P< 0.0001) between bodyweight and HR. There were differences between weight groups regarding electrocardiographic variables. There is no allometric relationship between BW and HR in dogs. Weight was associated with changes in ECG variables.
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12
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Figueroa R, Alfonso A, López-Picazo J, Gil-Bazo I, García-Mouriz A, Hermida J, Páramo JA, Lecumberri R. Improvement of appropriate pharmacological prophylaxis in hospitalised cancer patients with a multiscreen e-alert system: a single-centre experience. Clin Transl Oncol 2018; 21:805-809. [PMID: 30446983 DOI: 10.1007/s12094-018-1986-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/09/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE Thromboprophylaxis use among medical inpatients, including cancer patients, is suboptimal. We aimed to evaluate the impact of a novel multiscreen version (v2.0) of an e-alert system for VTE prevention in hospitalised cancer medical patients compared to the original software. METHODS Prospective study including 989 consecutive adult cancer patients with high-risk of VTE. Patients were followed-up 30 days post-discharge. Two periods were defined, according to the operative software. RESULTS E-alert v2.0 was associated with an increase in the use of LMWH prophylaxis (65.5% vs. 72.0%); risk difference (95% CI) 0.064 (0.0043-0.12). Only 16% of patients in whom LMWH prophylaxis was not prescribed lacked a contraindication. No significant differences in the rates of VTE (2.9% vs. 3.2%) and major bleeding (2.7% vs. 4.0%) were observed. CONCLUSIONS E-alert v2.0 further increased the use of appropriate thromboprophylaxis in hospitalised cancer patients, although was not associated with a reduction in VTE incidence.
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Affiliation(s)
- R Figueroa
- Hematology Service, University Clinic of Navarra, Av. Pío XII 36, 31008, Pamplona, Spain
| | - A Alfonso
- Hematology Service, University Clinic of Navarra, Av. Pío XII 36, 31008, Pamplona, Spain
| | - J López-Picazo
- Oncology Department, University Clinic of Navarra, Pamplona, Spain
| | - I Gil-Bazo
- Oncology Department, University Clinic of Navarra, Pamplona, Spain
| | - A García-Mouriz
- Informatics Service, University Clinic of Navarra, Pamplona, Spain
| | - J Hermida
- Center for Applied Medical Research, University of Navarra, Pamplona, Spain
- Centro de Investigación Biomédica en Red (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - J A Páramo
- Hematology Service, University Clinic of Navarra, Av. Pío XII 36, 31008, Pamplona, Spain
- Centro de Investigación Biomédica en Red (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - R Lecumberri
- Hematology Service, University Clinic of Navarra, Av. Pío XII 36, 31008, Pamplona, Spain.
- Centro de Investigación Biomédica en Red (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain.
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Chiacchio SB, Ulian CMV, Gonçalves RDS, Padovani CR, Cruz RKS, Santarosa BP, Alfonso A, Lourenço MLG. Electrocardiographic dynamic development and heart rate variability in lambs during the neonatal period. Journal of Applied Animal Research 2018. [DOI: 10.1080/09712119.2018.1467322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Simone Biagio Chiacchio
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Carla Maria Vela Ulian
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Renato de Souza Gonçalves
- Department of Medical Clinical Sciences, Botucatu Medical School of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Carlos Roberto Padovani
- Department of Biostatistics, Institute of Biosciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Raissa Karolliny Salgueiro Cruz
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Bianca Paola Santarosa
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Angélica Alfonso
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Maria Lúcia Gomes Lourenço
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences of Sao Paulo State University - UNESP, Botucatu, Brazil
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Alfonso A, Cruz RKS, Gonçalves RC, Chiacchio SB, Lourenço MLG. Electrocardiographic evaluation in pregnant mares and neonate foals of Paint Horse breed. AVB 2017. [DOI: 10.21708/avb.2017.11.4.7122] [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: 11/18/2022] Open
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Cruz RK, Alfonso A, Souza FF, Oba E, Padovani CR, Ramos PR, Lourenço MLG, Chiacchio SB. Evaluation of neonatal vitality and blood glucose, lactate and cortisol concentrations in foals of the Paint Horse breed. Pesq Vet Bras 2017. [DOI: 10.1590/s0100-736x2017000800019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT: Clinical evaluations of newborns, as well as defining the therapeutic decision, represent significant challenges to the veterinarian. This study aimed to evaluate neonatal vitality using the modified Apgar score and blood glucose, lactate, and cortisol concentrations in newborn equines. Twenty foals of the Paint Horse breed born by normal delivery were evaluated during the first 48 hours of life. The modified Apgar score was determined at birth and 10 minutes later, with values ranging from 0 to 10. Blood samples for the laboratory tests were collected at birth and at 4, 8, 12, 16, 20, 24, 36, and 48 hours. The mean Apgar score was significantly lower at birth than at 10 minutes (p < 0.001). Blood glucose concentrations increased significantly between birth (98.90 ± 35.97 mg/dL) and 8 hours (127.90 ± 27.15 mg/dL), stabilizing after the first 12 hours (148.95 ± 29.59 mg/dL). Serum lactate concentrations showed a significant decrease across the time points tested, with the highest value occurring at birth (5.48 ± 2.17 mmol/L) and stabilizing after 24 hours (2.76 ± 1.31 mmol/L). Cortisol concentrations significantly decreased (p < 0.01) between 4 (10.46 ± 7.46 μg/dL) and 48 hours (5.21 ± 3.35 μg/dL), with the highest value occurring 4 hours after birth. The common occurrence of laboratory abnormalities in healthy newborn foals reinforces the need to conduct regular clinical examinations and to develop laboratory reference values for different breeds and ages.
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Cruz R, Alfonso A, Lourenço M, Souza F, Oba E, Ramos P, Chiacchio S. Early and late analysis of postpartum stress in newborn foals. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-9205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The aim of this study was to evaluate newborn foals stress in the first 48 hours of life. Heart rate (HR), heart rate variability (HRV) and serum cortisol concentrations, blood glucose, and lactate were determined in foals (n = 20, Paint Horse). Cortisol concentrations decreased significantly between four and 48 hours, with the highest concentration at 4 hours after birth. Positive correlations between cortisol and lactate occurred between 12 and 16 hours. And there was a negative correlation between cortisol and lactate 4 hours after birth. Among the values obtained for HR, there was significantly difference between the the value obtained at twelve hours of life moment and all the other moments measured, the highest values were at birth, 24 and 48 hours of life. Among HRV indexes, there were no statistical differences between the variables analysed. The cortisol, HR and HRV alterations were consistent to neonatal stress, but might be related to extrauterine environment adaptation associated to sympathoadrenal response, since those foals were healthy.
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Aleixo ASC, Alfonso A, Kichise BK, Neto FT, Girotto CH, Garzesi AM, Garcia LR, De Andrade RR, Lourenço MLG. Pacemaker Implant in a Dog with Sick Sinus Syndrome. ACTA SCI VET 2017. [DOI: 10.22456/1679-9216.85851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: Sick sinus syndrome is characterized by the presence of arrhythmias, including persistent sinus bradycardia, sinus arrest and paroxysmal atrial tachyarrhythmia. It commonly occurs in elderly dogs, especially miniature schnauzers; however, it is also detected in dachshunds and pugs. Reports of clinical signs by animal owners are not always clear and precise, which may result in erroneous interpretations by veterinarians; consequently, the use of inappropriate therapies. The present work aims to describe clinical aspects and findings from tests related to sick sinus syndrome (SSS) and presents the case of a female schnauzer with SSS.Case: A 10-year-old female dog (schnauzer, 8.6 kg) attended the Veterinary Hospital of the FMVZ-UNESP - Botucatu. The owner mentioned convulsive episodes, but a thorough medical history and patient assessment revealed that the dog exhibited episodes of syncope. During the physical examination, cardiac auscultation revealed the heart rate to be 56 beats per minute (bpm), and there was a presence of pauses. Also during cardiac auscultation, a holosystolic heart murmur was verified, with a focus on the mitral and tricuspid valves. The electrocardiogram showed the presence of sinus arrest with escape rhythms, pauses of 10 s and the presence of bradycardia-tachycardia syndrome. A Holter monitor was used to establish the diagnosis of SSS. The patient presented with significant episodes of syncope during outpatient care, and based on the clinical manifestation, drug therapy was initiated. The prescribed medications were aminophylline 20 mg/ kg TID, enalapril maleate 0.5 mg/kg BID, spironolactone 1 mg/kg SID and furosemide 2 mg/kg BID. After the start of treatment, there was a reduction in the frequency of episodes of syncope. Three weeks after diagnosis, a pacemaker device was implanted. Currently, clinical signs are absent.Discussion: Sinus node dysfunction is one of the main reasons for pacemaker implantation. It is usually diagnosed based on clinical signs and the presence of sinus bradycardia and sinus pauses in electrocardiograms or Holter monitoring. The diagnosis of SSS is limited to cases in which the patient does not present with abnormalities in an electrocardiogram. Syncope is a clinical sign commonly present in patients with dysfunction of the sinus node, and episodes of syncope were reported by the owner of the dog referred to in the present report. A thorough medical history and physical examination must be performed to diagnose SSS because erroneous diagnosis and incorrect interpretations of clinical signs can lead to the misuse of medications. The treatment of choice for SSS is an implantable pacemaker device; however, because the method is not widely used in Brazil, a second option is drug treatment. In the present report, after implantation of a pacemaker, clinical signs ceased, and the patient was in good general health and could return to her normal activities. Sick sinus syndrome is a disease commonly found in schnauzers. There is a need for detailed histories and complementary exams because the clinical signs do not always correlate with electrocardiographic findings. The implantation of a pacemaker is the treatment of choice and is effective for the condition, but its use is not uniformly accessible throughout the country.
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Cruz Aleixo AS, Alfonso A, Oba E, Ferreira de Souza F, Salgueiro Cruz RK, Fillippi MG, Chiacchio SB, Tsunemi M, Gomes Lourenço ML. Scaling Relationships Among Heart Rate, Electrocardiography Parameters, and Body Weight. Top Companion Anim Med 2017; 32:66-71. [PMID: 28992907 DOI: 10.1053/j.tcam.2017.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 02/21/2017] [Revised: 05/23/2017] [Accepted: 06/21/2017] [Indexed: 11/11/2022]
Abstract
Although heart rate (HR) is one of the most important clinical parameters determined via physical examinations, little information is available on the normal HR in dogs, which may be related to the high variability of body weight (BW) in this species. HR is determined by the discharge rate of the sinus node, which is dependent on the autonomic nervous system and the release of catecholamines. The allometric relationship between BW and HR in different species has been described as inversely proportional; however, this relationship has been refuted. Certain authors have reported that the relationship between HR and BW in dogs is based on temperament as well as sympathetic autonomic stimulation of the sinus node in small breeds compared with large breeds. The aim of this study was to analyze the effects of weight, sex, age and temperament on the HR, heart rate variability and serum catecholamine (epinephrine and norepinephrine) levels in dogs. We evaluated 48 adult dogs of both sexes and various breeds and ages and divided the dogs into 5 BW groups: <5kg (n = 8), 5-10kg (n = 10), 10-25kg (n = 10), 25-45kg (n = 10), and >45kg (n = 10). The measured parameters were HR, breath rate (BR) and body temperature. We also performed an ambulatory electrocardiogram and electrocardiography (ECG) test for 24 hours (Holter monitor) and determined the serum levels of the catecholamines epinephrine and norepinephrine. We observed correlations between HR and sex; differences among the weight groups with respect to ECG variables and epinephrine levels; and differences among the temperament categories for certain clinical parameters, such as HR and BR. Age affected the R wave amplitude, and an allometric relationship was not observed between HR and BW in the dogs. Our results indicated that weight was associated with variations in the ECG variables; age and sex were associated with variations in HR; and temperament had a significant influence on the HR and BR of the dogs.
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Affiliation(s)
- Amanda Sarita Cruz Aleixo
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - Angélica Alfonso
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - Eunice Oba
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - Fabiana Ferreira de Souza
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | | | | | - Simone Biagio Chiacchio
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - Miriam Tsunemi
- Department of Biostatistics, School of Biological Sciences, UNESP, Botucatu, São Paulo, Brazil
| | - Maria Lucia Gomes Lourenço
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil.
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Ganan-Gomez I, Alfonso A, Ogoti Y, Yang H, Montalban-Bravo G, Yu A, Silver S, Clise-Dwyer K, Garcia-Manero G, Colla S. Identification of the Specific Hematopoietic Stem Cell Populations Responsible for Failure to Hypomethylating Agents in Myelodysplastic Syndromes. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30165-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Montalban-Bravo G, Huang X, Naqvi K, Jabbour E, Borthakur G, DiNardo CD, Pemmaraju N, Cortes J, Verstovsek S, Kadia T, Daver N, Wierda W, Alvarado Y, Konopleva M, Ravandi F, Estrov Z, Jain N, Alfonso A, Brandt M, Sneed T, Chen HC, Yang H, Bueso-Ramos C, Pierce S, Estey E, Bohannan Z, Kantarjian HM, Garcia-Manero G. Erratum: A clinical trial for patients with acute myeloid leukemia or myelodysplastic syndromes not eligible for standard clinical trials. Leukemia 2017; 31:1659. [DOI: 10.1038/leu.2017.85] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Martínez-Calle N, Hidalgo F, Alfonso A, Muñoz M, Hernández M, Lecumberri R, Páramo JA. Implementation of a management protocol for massive bleeding reduces mortality in non-trauma patients: Results from a single centre audit. Med Intensiva 2016; 40:550-559. [PMID: 27425576 DOI: 10.1016/j.medin.2016.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 02/03/2016] [Revised: 04/15/2016] [Accepted: 05/09/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To audit the impact upon mortality of a massive bleeding management protocol (MBP) implemented in our center since 2007. DESIGN A retrospective, single-center study was carried out. Patients transfused after MBP implementation (2007-2012, Group 2) were compared with a historical cohort (2005-2006, Group 1). BACKGROUND Massive bleeding is associated to high mortality rates. Available MBPs are designed for trauma patients, whereas specific recommendations in the medical/surgical settings are scarce. PATIENTS After excluding patients who died shortly (<6h) after MBP activation (n=20), a total of 304 were included in the data analysis (68% males, 87% surgical). INTERVENTIONS Our MBP featured goal-directed transfusion with early use of adjuvant hemostatic medications. VARIABLES OF INTEREST Primary endpoints were 24-h and 30-day mortality. Fresh frozen plasma-to-red blood cells (FFP:RBC) and platelet-to-RBC (PLT:RBC) transfusion ratios, time to first FFP unit and the proactive MBP triggering rate were secondary endpoints. RESULTS After MBP implementation (Group 2; n=222), RBC use remained stable, whereas FFP and hemostatic agents increased, when compared with Group 1 (n=82). Increased FFP:RBC ratio (p=0.053) and earlier administration of FFP (p=0.001) were also observed, especially with proactive MBP triggering. Group 2 patients presented lower rates of 24-h (0.5% vs. 7.3%; p=0.002) and 30-day mortality (15.9% vs. 30.2%; p=0.018) - the greatest reduction corresponding to non-surgical patients. Logistic regression showed an independent protective effect of MBP implementation upon 30-day mortality (OR=0.3; 95% CI 0.15-0.61). CONCLUSIONS These data suggest that the implementation of a goal-directed MBP for prompt and aggressive management of non-trauma, massive bleeding patients is associated to reduced 24-h and 30-day mortality rates.
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Affiliation(s)
- N Martínez-Calle
- Hematology Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - F Hidalgo
- Department of Anaesthesia and Critical Care, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Alfonso
- Hematology Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - M Muñoz
- Transfusion Medicine, School of Medicine, University of Málaga, Málaga, Spain
| | - M Hernández
- Hematology Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - R Lecumberri
- Hematology Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - J A Páramo
- Hematology Department, Clínica Universidad de Navarra, Pamplona, Spain.
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Koether K, Ulian CMV, Lourenço MLG, Gonçalves RS, Sudano MJ, Cruz RKS, da Silva Branchini N, Alfonso A, Chiacchio SB. The normal electrocardiograms in the conscious newborn lambs in neonatal period and its progression. BMC Physiol 2016; 16:1. [PMID: 26786197 PMCID: PMC4719313 DOI: 10.1186/s12899-016-0020-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 01/12/2016] [Indexed: 01/21/2023]
Abstract
BACKGROUND Veterinary cardiology, especially electrocardiography, has shown major advancements for all animal species. Consequently, the number of ovine species used as experimental animals has increased to date. Few studies have been published on ovine systematic electrocardiography, particularly with respect to lamb physiology and neonatology. This study aimed to standardize the values of normal waves, complexes, and intervals of the electrocardiogram (ECG) in clinically Bergamasca healthy neonatal lambs, used as experimental animals. Serial computerized electrocardiography was performed in 10 male and 12 female neonates on the 1st, 7th, 14th, 21st, 28th, and 35th days of age. The following parameters were analyzed: heart rate and rhythm, duration and amplitude of waves, duration of intervals, and heart electrical axis. RESULTS During the first 35 days of life, (1) the sinusal heart rhythm was predominant, (2) there was a progressive decrease in the heart rate and R and T wave amplitude, and (3) a progressive increase in the PR, QT, and RR intervals. Finally, we confirmed that various components of neonatal evolution were more discernible in the augmented unipolar leads (aVF), which we recommend should be preferentially used in future studies. No significant statistical alterations were observed between males and females in relation to the analyzed parameters. CONCLUSIONS The information assimilated in this study is anticipated to enhance the diagnosis of multiple congenital heart defects in Bergamasca lambs and could be implemented in studies that use ovine species as experimental models.
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Affiliation(s)
- Karoline Koether
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | - Carla Maria Vela Ulian
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | - Maria Lucia Gomes Lourenço
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | | | - Mateus José Sudano
- Laboratory of Genetics and Animal Breeding, Federal University of Pampa, 97508-000, Uruguaiana, RS, Brazil.
| | - Raíssa Karolliny Salgueiro Cruz
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | - Naiana da Silva Branchini
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | - Angélica Alfonso
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
| | - Simone Biagio Chiacchio
- Department of Clinical Veterinary of School of Veterinary Medicine and Animal Science, State University of São Paulo, (UNESP), 18619-970, Botucatu, São Paulo, Brazil.
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Martínez- León NC, García-Rincón L, Valencia D, Barreto S, Alfonso A, Quintero C, Roncancio C, Parra A. Efecto de una intervención cognoscitivo conductual para el manejo de los celos en la relación de pareja. Psychol 2016. [DOI: 10.21500/19002386.2472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
El objetivo de este estudio fue reducir los niveles de celos en seis mujeres, estudiantes universitarias, con edades entre los 18 y 35 años de edad, que presentaban celos patológicos. El proceso terapéutico utilizado se basó en la guía de intervención cognitivo comportamental para el manejo de los celos en la relación de pareja. La intervención tuvo una duración de dos meses y se desarrolló en siete sesiones, bajo un diseño AB y con seguimiento a los 6 meses a dos de las consultantes. Los resultados muestran una disminución en el puntaje de la Escala Interpersonal de Celos. Se encontraron diferencias significativas en los resultados globales de la escala en la aplicación pre y pos test (p<,05), así como en la frecuencia de conductas asociadas al problema. Se discuten las bondades y limitacionesde la intervención.
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Alfonso A, Juul Jensen D, Luo GN, Pantleon W. Thermal stability of a highly-deformed warm-rolled tungsten plate in the temperature range 1100–1250 °C. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.05.043] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Páramo J, Alfonso A, Lecumberri R. Nuevos anticoagulantes orales en el tratamiento del tromboembolismo venoso: análisis crítico de los resultados clínicos. Angiología 2015. [DOI: 10.1016/j.angio.2014.07.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rodriguez I, Rodriguez C, Alfonso A, Otero P, Meyer T, Breitenbach U, Botana LM. Toxin profile in samples collected in fresh and brackish water in Germany. Toxicon 2015; 91:35-44. [PMID: 25448386 DOI: 10.1016/j.toxicon.2014.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/21/2014] [Accepted: 10/22/2014] [Indexed: 10/24/2022]
Abstract
The simultaneous detection of cyanotoxins is an important issue in order to prevent intoxications. In the present paper an Ultra Performance liquid Chromatography tandem mass spectrometry UPLC-MS/MS method was developed in order to simultaneously identify and quantify cylindrospermopsin (CYN), several microcystins (MC-LR, MC-RR, MC-YR) and some anatoxin-a (ATX-a) analogues. By using this new method all these toxins can be quickly separate. In addition the amino acid phenylalanine (Phe) can also be separate and therefore misidentifications with ATX-a can be avoided. By using this new method the presence of these toxins was studied in samples collected in several German localizations within the sampling program of the European Project μAqua (Universal microarrays for the evaluation of fresh-water quality based on detection of pathogens and their toxins). In these conditions, several ATX-a analogues, Phe, MC-LR and MC-RR were reported in samples collected.
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Cardona-González M, Sánchez M, Duque A, Alfonso A, Chaparro E, Mestre R. Colgajo anterolateral de muslo pediculado para cobertura de defectos oncológicos. Cir plást iberolatinoam 2015. [DOI: 10.4321/s0376-78922015000200006] [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: 11/11/2022] Open
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Leirós M, Alonso E, Rateb ME, Houssen WE, Ebel R, Jaspars M, Alfonso A, Botana LM. Bromoalkaloids protect primary cortical neurons from induced oxidative stress. ACS Chem Neurosci 2015; 6:331-8. [PMID: 25387680 DOI: 10.1021/cn500258c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 01/21/2023] Open
Abstract
Bromoalkaloids are secondary metabolites with a demonstrated high activity in several therapeutic areas. In this research, we probe the neuroprotective and antioxidant activities of hymenialdisine and hymenin. Both structures were tested in an oxidative stress cellular model, consisting of cortical neurons that are incubated with the oxidative stress inducer hydrogen peroxide and the tested compound. Several oxidation biomarkers were analyzed, and the results of the oxidative stress induced neurons in the presence and absence of bromoalkaloids were compared. Both compounds demonstrated significant neuroprotective ability under stress conditions at low nanomolar concentrations, with hymenialdisine highlighted for demonstrating a more complete protection. Also, the activity of hymenialdisine and hymenin was studied in the nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE) pathway, and, for the first time, these halogenated metabolites are described as Nrf2 inducers, reinforcing the antioxidant capacity observed and therefore opening a new path of investigation. These results, added to the previously described effect of this compound family in negatively modulating several kinases and proinflammatory cytokines, position hymenialdisine and hymenin as good candidates for the development of new drugs for neurodegenerative diseases.
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Affiliation(s)
- M. Leirós
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo 27003, Spain
| | - E. Alonso
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo 27003, Spain
| | - M. E. Rateb
- Marine
Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland, U.K
- Pharmacognosy
Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 32514, Egypt
| | - W. E. Houssen
- Marine
Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland, U.K
- Institute
of Medical Sciences, University of Aberdeen, Ashgrove Road West, Aberdeen AB25 2ZD, Scotland, U.K
| | - R. Ebel
- Marine
Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland, U.K
| | - M. Jaspars
- Marine
Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland, U.K
| | - A. Alfonso
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo 27003, Spain
| | - L. M. Botana
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo 27003, Spain
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Martínez-Calle N, Marcos-Jubilar M, Alfonso A, Hernández M, Hidalgo F, Lecumberri R, Páramo J. [Safety and efficacy of a prothrombin complex concentrate in patients with coagulopathy and hemorrhage]. An Sist Sanit Navar 2015; 37:363-9. [PMID: 25567390 DOI: 10.4321/s1137-66272014000300006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Prothrombin complex concentrates (PCC) are approved for urgent reversal of vitamin K antagonists (VKA). Recently, PCC have been used in the management of massive bleeding-associated coagulopathy. The present work evaluates safety and efficacy of PCC in a case series of both VKA reversal and massive bleeding. METHODS Retrospective review of cases treated with CCP (January 2010 to February 2013). Safety endpoints were infusion reactions and incidence of thromboembolic events. Efficacy endpoints were: 1) VKA reversal efficacy and 2) Massive bleeding coagulopathy reversal and 24h mortality. RESULTS Thirty-one patients were included (22 male), median age 61 years (range 30-86). No infusion reactions were detected, and only 1 thrombotic episode was observed. VKA reversal was effective in 100% of patients (6/6), all of them with complete reversal of INR value. In massive bleeding, 24-hour survival was 64% (16/25). Invasive hemostatic procedures were required in 28% of patients (7/25). CCP use was correlated with bleeding control in 44% of cases (11/25), and also significantly associated with survival (p=0.01). CONCLUSION CCP are safe and effective for the novel indication of adjuvant treatment in massive bleeding patients, as well as for traditional urgent reversal of VKA.
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Affiliation(s)
| | | | | | | | | | | | - Ja Páramo
- Servicio de Hematología y Hemoterapia, Clínica Universidad de Navarra, Pamplona, 31008, Spain.
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Fernández-Araujo A, Alfonso A, Vieytes MR, Botana LM. Key role of phosphodiesterase 4A (PDE4A) in autophagy triggered by yessotoxin. Toxicology 2015; 329:60-72. [PMID: 25576684 DOI: 10.1016/j.tox.2015.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 12/24/2014] [Accepted: 01/06/2015] [Indexed: 12/12/2022]
Abstract
Understanding the mechanism of action of the yessotoxin (YTX) is crucial since this drug has potential pharmacological effects in allergic processes, tumor proliferation and neurodegenerative diseases. It has been described that YTX activates apoptosis after 24h of treatment, while after 48 h of incubation with the toxin a decrease in cell viability corresponding to cellular differentiation or non-apoptotic cell death was observed. In this paper, these processes were extensively studied by using the erythroleukemia K-562 cell line. On one hand, events of K-562 cell differentiation into erythrocytes after YTX treatment were studied using hemin as positive control of cell differentiation. Cell differentiation was studied through the cyclic nucleotide response element binding (phospho-CREB) and the transferrin receptor (TfR) expression. On the other hand, using rapamycin as positive control, autophagic hallmarks, as non-apoptotic cell death, were studied after toxin exposure. In this case, the mechanistic target of rapamycin (mTOR) and light chain 3B (LC3B) levels were measured to check autophagy activation. The results showed that cell differentiation was not occurring after 48 h of toxin incubation while at this time the autophagy was triggered. Furthermore after 24h of toxin treatment none of these processes were activated. In addition, the role of the type 4A phosphodiesterase (PDE4A), the intracellular target of YTX, was checked. PDE4A-silencing experiments showed different regulation steps of PDE4A in the autophagic processes triggered either by traditional compounds or YTX. In summary, after 48 h YTX treatment PDE4A-dependent autophagy, as non-apoptotic programmed cell death, is activated.
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Affiliation(s)
| | - A Alfonso
- Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain
| | - M R Vieytes
- Dept. Fisiología, Facultad de Veterinaria, 27002 Lugo, Spain
| | - L M Botana
- Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain.
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Torrens I, Granadillo M, Battle A, Alfonso A, Mendoza O, Guerra M, Falcon V. A Novel Strategy to Improve Antigen Presentation for Active Immunotherapy in Cancer. Fusion of the Human Papillomavirus Type 16 E7 Antigen to a Cell Penetrating Peptide. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu342.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Waxmonsky JG, Waschbusch DA, Babinski DE, Humphrey HH, Alfonso A, Crum KI, Bernstein M, Slavec J, Augustus JN, Pelham WE. Does pharmacological treatment of ADHD in adults enhance parenting performance? Results of a double-blind randomized trial. CNS Drugs 2014; 28:665-77. [PMID: 24796970 DOI: 10.1007/s40263-014-0165-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study examines the effects of parental lisdexamfetamine (LDX) treatment on parent-child interactions. METHODS Participants were 30 parents (27% were male) and their children aged 5-12 years, both diagnosed with DSM-IV attention-deficit/hyperactivity disorder (ADHD). Optimal LDX dose (30, 50, or 70 mg/day) was determined for parents during a 3-week open-label titration, followed by a within-subjects trial of the acute impact of LDX and placebo on observable parent-child interactions. Two laboratory-based, parent-child interactions simulating typical family tasks (e.g., homework, joint play) were conducted within 2 weeks, once with the adult on a blinded optimal dose of LDX and once on placebo (phase I). Parents were then randomly assigned to continue blinded treatment with LDX or placebo for another month followed by a third interaction task (phase II) to assess the ongoing effects of LDX on parent-child interactions. The primary outcome was the change in rate of parenting behaviors coded during the parent-child interaction tasks. Secondary outcomes included observed rates of children's inappropriate behaviors during the laboratory tasks and changes in parental ADHD symptom severity (ADHD-Rating Scale). RESULTS Twenty parents (67%) completed the trial. In phase I, medication was associated with a significant reduction in negative talk by parents (p = 0.0066, d = -0.47). There was a Medication × Task interaction (p = 0.0235) with a reduction in children's negative behaviors in the homework phase only (p = 0.0154, d = -0.58). In phase II, LDX was associated with significant increases in praise by parents (d = 0.81) and reductions in parental commands (d = -0.88) and children's inappropriate behaviors (d = -0.84) (all p-values < 0.05). While not reaching statistical significance, LDX was also associated with large reductions in parental verbalizations (d = -0.82), moderate increases in parental responsiveness (d = 0.55), and large reductions in the ratio of commands to verbalizations during the non-homework task (d = -1.05) (all p-values < 0.10). Significant reductions in parental ADHD symptoms vs. placebo were observed (p < 0.005). Loss of appetite, dry mouth, headaches, and delayed sleep onset were the most common adverse events. CONCLUSIONS Improvements in parent-child interactions emerged over time with LDX treatment of parental ADHD. Results suggest that pharmacological treatment of parental ADHD may improve outcomes in parents and their children.
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Affiliation(s)
- James G Waxmonsky
- Center for Children and Families, Florida International University, AHC 1 11200 SW 8th St, Miami, FL, 33199, USA,
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Fernández-Araujo A, Tobío A, Alfonso A, Botana LM. Role of AKAP 149-PKA-PDE4A complex in cell survival and cell differentiation processes. Int J Biochem Cell Biol 2014; 53:89-101. [PMID: 24813785 DOI: 10.1016/j.biocel.2014.04.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/31/2014] [Accepted: 04/30/2014] [Indexed: 10/25/2022]
Abstract
The cellular localization of A-kinase anchoring proteins (AKAPs), protein kinase A (PKAs) and phosphodiesterases (PDEs) is a key step to the spatiotemporal regulation of the second messenger adenosine 3',5'-cyclic monophosphate (cAMP). In this paper the cellular distribution of the mitochondrial AKAP 149-PKA-PDE4A complex and its implications in the cell death induced by YTX treatment, a known PDE modulator, was studied. K-562 cell line was incubated with YTX for 24 or 48 h. Under these conditions AKAP 149, PKA and type-4A PDE (PDE4A) levels were measured in the cytosol, in the plasma membrane and in the nucleus. Apoptotic hallmarks were also measured after the same conditions. In addition, YTX effect on cell viability was checked after AKAP 149 and PDE4A silencing. The results obtained show a decrease in AKAP 149-PKA-PDE4A levels in cytosol after YTX exposure. 24h after the toxin addition, the complex expression increased in the plasma membrane and after 48 h in the nucleus domain. Furthermore Bcl-2 levels were decreased and the expression of caspase 3 together with caspase 8 activity were increased after 24h of toxin incubation but not after 48 h. These results suggest apoptotic cell death at 24h and a non-apoptotic cell death after 48 h. When AKAP 149 and PDE4A were silenced YTX did not induce cellular death. In summary, AKAP 149-PKA-PDE4A complex localization is related with YTX effect in K-562 cell line. When this complex is mainly located in the plasma membrane apoptosis is activated while when the complex is in the nuclear domain non-apoptotic cellular death or cellular differentiation is activated. Therefore AKAP 149-PKA-PDE4A distribution and integrity have a key role in cellular survival.
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Affiliation(s)
- A Fernández-Araujo
- Univ Santiago de Compostela, Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain
| | - A Tobío
- Univ Santiago de Compostela, Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain
| | - A Alfonso
- Univ Santiago de Compostela, Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain.
| | - L M Botana
- Univ Santiago de Compostela, Dept. Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain.
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Lecumberri R, Alfonso A, Marqués M, Fernández del Carril A, Martínez-Calle N, Franco S, García-Mouriz A, Páramo J. C0374: Venous Thromboembolism in Hospitalised Cancer Patients Despite Electronic Alerts and Appropriate Prophylaxis with LMWH. Should We Consider Higher Doses in Some Patients? Thromb Res 2014. [DOI: 10.1016/s0049-3848(14)50044-8] [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: 11/29/2022]
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Sanni A, Shimotake L, Narvaez F, Georgiades M, Basa J, Alfonso A. Morbid Obesity and Compressive Nodular Goiters- A Single Center Experience. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.829] [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]
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Alfonso A, Fernández-Araujo A, Alfonso C, Caramés B, Tobio A, Louzao M, Vieytes M, Botana L. Palytoxin detection and quantification using the fluorescence polarization technique. Anal Biochem 2012; 424:64-70. [DOI: 10.1016/j.ab.2012.02.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 01/19/2012] [Accepted: 02/09/2012] [Indexed: 11/16/2022]
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Lazo C, Lecumberri R, Varea S, Alfonso A, del Carril AF, Marqués M, García-Mouriz A, Páramo J. E-alerts for the prevention of venous thromboembolism in onco-hematological inpatients: pilot evaluation of reasons for physicians' refusal of pharmacological thromboprophylaxis. Thromb Res 2012. [DOI: 10.1016/s0049-3848(12)70105-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Alfonso A, Redondo M, Rubio T, Olmo BD, Rodríguez-Wilhelmi P, Varea S, Velloso MG, Páramo J, Lecumberri R. Screening for occult malignancy with 18-F-FDG-PET/CT in patients with unprovoked venous thromboembolism. Thromb Res 2012. [DOI: 10.1016/s0049-3848(12)70092-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rodríguez P, Alfonso A, Botana A, Vieytes M, Botana L. Comparative analysis of pre- and post-column oxidation methods for detection of paralytic shellfish toxins. Toxicon 2010; 56:448-57. [DOI: 10.1016/j.toxicon.2010.04.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 04/07/2010] [Accepted: 04/25/2010] [Indexed: 10/19/2022]
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Giuliani E, Iseppi D, Orlandi MC, Alfonso A, Barbieri A. Prolonged neurological burden in severe lithium intoxication. Minerva Anestesiol 2010; 76:463-465. [PMID: 20473261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A 53-year-old woman was brought to the Emergency Department for a persistent state of stupor, tremors, fever and oliguria. The patient had been under treatment for depression. The electrocardiogram showed a wider QRS complex; laboratory tests were as follows: urea 110 mg/dL, creatinine 3 mg/dL, sodium 135 mEq/L, potassium 4.5 mEq/L, and lithium 8.0 mEq/L. Renal replacement was initiated to normalize plasma lithium levels; both stupor and speech impairment persisted for several days after dialysis. Complete recovery was achieved several days afterwards.
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Affiliation(s)
- E Giuliani
- Anesthesia and Intensive Care, University of Modena and Reggio Emilia, Modena, Italy
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Vilouta M, Borrajo E, Alfonso A. Síndrome cerebeloso paraneoplásico como primera manifestación de un cáncer de ovario. Clínica e Investigación en Ginecología y Obstetricia 2007. [DOI: 10.1016/s0210-573x(07)74496-9] [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: 11/27/2022]
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Vale-Gonzalez C, Pazos MJ, Alfonso A, Vieytes MR, Botana LM. Study of the neuronal effects of ouabain and palytoxin and their binding to Na,K-ATPases using an optical biosensor. Toxicon 2007; 50:541-52. [PMID: 17548099 DOI: 10.1016/j.toxicon.2007.04.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2007] [Revised: 04/27/2007] [Accepted: 04/30/2007] [Indexed: 10/23/2022]
Abstract
The phycotoxin palytoxin (PTX) binds to Na,K-ATPase, inhibiting its activity and converting the pump into a channel. These mechanisms are poorly understood. We examined the effect of PTX on membrane potential (E(m)), intracellular calcium concentration ([Ca2+]i) and intracellular pH (pH(i)) in primary cultures of cerebellar granule cells (CGC) and compared PTX and ouabain actions in the same cellular parameters. In this system, PTX caused depolarization, intracellular calcium increase and acidification. This is similar to the effect of ouabain. Preincubation of the cells with ouabain, before addition of PTX, altered E(m), [Ca2+]i, and pH(i) in a fashion similar to that of ouabain alone. This suggest a direct interaction of PTX with the Na,K-ATPase. Therefore, we used a resonant mirror biosensor to evaluate the binding of PTX and ouabain to immobilized Na,K-ATPase. Ouabain binding to immobilized Na,K-ATPase was concentration-dependent. No binding of PTX to Na,K-ATPase was observed with up to 10 microM, or with PTX addition in the presence of ATP. The fact that ouabain binds to the pump in an immobilized conformation whereas not binding of PTX was observed indicates that PTX and ouabain do not share the same binding site, and PTX binding may require the tridimensional pump structure.
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Affiliation(s)
- C Vale-Gonzalez
- Departamento de Farmacología, Universidad de Santiago de Compostela, Campus Universitario s/n 27002 Lugo, Spain
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Alfonso C, Alfonso A, Pazos MJ, Vieytes MR, Yasumoto T, Milandri A, Poletti R, Botana LM. Extraction and cleaning methods to detect yessotoxins in contaminated mussels. Anal Biochem 2007; 363:228-38. [PMID: 17320028 DOI: 10.1016/j.ab.2007.01.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2006] [Revised: 01/12/2007] [Accepted: 01/12/2007] [Indexed: 11/25/2022]
Abstract
Yessotoxin (YTX) and its analogues are a newly recognized group of toxins with increased presence in shellfish in recent years. They can be quantified by various functional assays due to their interaction with phosphodiesterases (PDEs). One of these assays detects the binding between the YTX and the fluorescently labeled PDE I using fluorescence polarization, a spectroscopic technique based on exciting a fluorescent molecule with plane-polarized light and measuring the polarization degree of the emitted light. The aim of this study was to develop a YTX extraction procedure from mussels that does not interfere with this detection method. YTX concentrations were measured in spiked mussel extracts obtained through use of different extraction methods and cleaning procedures. The percentages of toxin recovery in various steps of the processes were calculated using these concentrations. Six extraction methods and two cleaning steps were used and no matrix effects and high toxin recoveries were obtained in two cases. One case used acetone as extraction solvent followed by three dichloromethane partitions and the other case used methanol. The cleaning procedure includes a silica cartridge and a 10,000 NMWL filter. Finally these two extraction-cleaning-detection methods were applied to a naturally contaminated mussel sample and results showed that not only YTX but also homoYTX and hydroxyYTX can be quantified with a 85-90% recovery.
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Affiliation(s)
- C Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago, 27002 Lugo, Spain
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Abstract
This cross-sectional research study tested the hypothesis that body image estimates of African-American females differ as a function of age. To test this hypothesis, body image estimates of 379 African-American females, ranging in age from 16 to 96 years, were contrasted as a function of age group, while statistically controlling body mass index. Three body size estimates, current body size, ideal body size, and reasonable body size were measured using the Body Image Assessment for Obesity. The discrepancies between current and ideal body size estimates and between current and reasonable body size estimates were also analyzed to assess for differences in body size dissatisfaction. The study found that younger African-American women (16 to 35 years) differed from older African-American women (>35 years) on measures of body size dissatisfaction. Women in the age range of 26 to 35 years reported higher estimates of current body size in comparison to women older than 35 years. The youngest age group (16 to 25 years) reported thinner ideal body size goals in comparison to women who were slightly older (26 to 35 years) and women who were older than 75 years. The pattern of body image estimates across a large age range suggests that younger African-American women, in comparison to older African-American women, may have body images that may make them more susceptible to eating disorders.
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Affiliation(s)
- D A Williamson
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA 70808, USA.
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Newton RL, Alfonso A, White MA, York-Crowe E, Walden H, Ryan D, Bray GA, Williamson D. Percent body fat measured by BIA and DEXA in obese, African-American adolescent girls. Int J Obes (Lond) 2005; 29:594-602. [PMID: 15889118 DOI: 10.1038/sj.ijo.0802968] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To compare the estimation of body fat between bioelectrical impedance analysis (BIA) and dual energy X-ray absorptiometry (DEXA) in overweight, African-American female adolescents. SUBJECTS In total, 54 African-American adolescent female subjects were recruited for Study 1. Each adolescent's body mass index was greater than the 85th percentile and their average body fat was 45% according to DEXA. A total of 26 African-American adolescent female subjects were available for Study 2, and had an average body fat of 26% according to DEXA. MEASUREMENTS Percent body fat was measured by DEXA and BIA. Seven different BIA equations were tested. Both sets of data were analyzed using Bland-Altman regression analyses, utilizing percent body fat measured by DEXA as the criterion. RESULTS The Kushner equation provided estimates that were unaffected by body fat in both studies. Estimates were unbiased when applied to the exclusively overweight sample and biased when utilized with the separate sample of normal weight and obese girls. The remaining equations were biased, provided inconsistent estimates across body weight, or were biased and provided inconsistent estimates. Ethnicity-specific and ethnicity-combined equations performed similarly in the obese sample, but became more disparate when applied to a sample encompassing a wider body weight range. The limits of agreement between all BIA equations and the DEXA estimates ranged from 6 to 9%. CONCLUSION The study suggests that the Kushner BIA equation is appropriate for use with African-American female adolescents across the weight spectrum, while the majority of BIA equations underestimated percent body fat as body fat increased.
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Affiliation(s)
- R L Newton
- Pennington Biomedical Research Center, Louisiana State University, Baton Rogue, LA 70808, USA.
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Williamson DA, Martin PD, White MA, Newton R, Walden H, York-Crowe E, Alfonso A, Gordon S, Ryan D. Efficacy of an internet-based behavioral weight loss program for overweight adolescent African-American girls. Eat Weight Disord 2005; 10:193-203. [PMID: 16277142 DOI: 10.1007/bf03327547] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE This randomized controlled trial tested the efficacy of an internet-based lifestyle behavior modification program for weight management in African-American girls. DESIGN African-American girls were randomly assigned to an interactive behavioral internet program or an internet health education program, the control condition. The behavioral intervention included internet counseling and was highly interactive. The control intervention was a passive (non-interactive) educational program. Parents were also participants in the study. Participants in both treatment groups met in face-to-face sessions on four occasions over the first 12 weeks of a 6-month intervention. SUBJECTS The study enrolled 57 African-American adolescent girls (ages 11 to 15 years) who were overweight or obese and had at least one biological parent who was obese [body mass index (BMI) >30 kg/m2]. Of the 57 participants, 50 (88%) completed the 6-month trial. MEASUREMENTS Outcome data, including BMI, body weight, body composition, dietary intake, and weight loss behaviors were collected at baseline and 6-months later. A computer server tracked utilization of the websites. Participation in the program was measured by number of "hits" on the website. RESULTS Compared to the control condition, adolescents in the behavioral treatment lost more body fat (group difference =1.6% body fat) and parents lost significantly more body weight (group difference =2.1 kg). Utilization of the behavioral website by adolescents and parents was associated with positive outcome. Dietary fat intake was lowered for adolescents and parents in the behavioral treatment group. CONCLUSION An internet-based behavioral intervention was superior to internet-based health education and yielded decreased body fat for adolescent girls and decreased body weight for parents.
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Affiliation(s)
- D A Williamson
- Pennington Biomedical Research Center, Baton Rouge, LA, USA.
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Pernas-Sueiras O, Alfonso A, Vieytes MR, Botana LM. Mast cell exocytosis can be triggered by ammonium chloride with just a cytosolic alkalinization and no calcium increase. J Cell Physiol 2005; 204:775-84. [PMID: 15754334 DOI: 10.1002/jcp.20334] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A human mast cell line (HMC-1) has been used to study the effect of cytosolic alkaline pH in exocytosis. Compound 48/80, concanavalin A, and thapsigargin do not induce histamine release in HMC-1 cells. Although thapsigargin does not activate histamine release, it does show a large increase in cytosolic Ca(2+), and no change in cytosolic pH. However, when HMC-1 cells were activated with ionomycin, a significant histamine release takes place, and this effect is higher in the presence of thapsigargin. Both drugs show an additive effect on cytosolic Ca(2+) levels. Ammonium chloride (NH(4)Cl) does activate cytosolic alkalinization and histamine release, with no increase in cytosolic Ca(2+). NH(4)Cl does block the release of internal Ca(2+) by thapsigargin, not by ionomycin, and decreases Ca(2+) influx stimulated by these drugs. Under conditions in which the alkalinization induced by NH(4)Cl is blocked by acidification with sodium propionate, histamine release is inhibited. The release of histamine is also observed when NH(4)Cl is added after propionate addition, regardless of the final pH value attained. Our results show that a shift in pH alkaline values, even with final pH below 7.2 is enough to activate histamine release. A shift to less acidic values is a sufficient signal to activate the cells.
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Affiliation(s)
- O Pernas-Sueiras
- Departamento de Farmacología, Facultad de Veterinaria, USC, Lugo, Spain
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Alfonso A, Vieytes MR, Botana LM. Calcium-pH crosstalks in rat mast cells: modulation by transduction signals show non-essential role for calcium in alkaline-induced exocytosis. Biochem Pharmacol 2005; 69:319-27. [PMID: 15627484 DOI: 10.1016/j.bcp.2004.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2004] [Accepted: 10/05/2004] [Indexed: 10/26/2022]
Abstract
Alkalinization of cytosolic pH with ammonium chloride (NH4Cl) was reported to be a stimulus for mast cell degranulation. This paper studied the modulatory role of drugs that target protein kinase C (PKC), adenosine 3',5'-cyclic monophosphate (cAMP), tyrosine kinase (TyrK) and phosphatidylinositol 3-kinase (PI3K) on this effect. We used Go6976 (100 nM) and low concentrations of GF109203X (Gf) (50 nM) to inhibit calcium-dependent PKC isozymes. For calcium-independent isozymes, we used 500 nM Gf, and 10 microM rottlerin to specifically inhibit PKC delta, and chelerythrine as non-specific PKC inhibitor. Genistein (10 microM) and lavendustin A (1 microM) were used as unspecific TyrK inhibitors, and 10 nM wortmannin as a PI3K inhibitor. Chelerythrine and 50 nM Gf inhibit histamine release in the presence of external calcium. The inhibition caused by wortmannin was strictly internal calcium-dependent. cAMP-active drugs did not modify the response to NH4Cl. The effect of NH4Cl on histamine release was triggered by a transient elevation on cytosolic pH, which was simultaneous to an elevation on cytosolic calcium and followed by a probable Ca2+-H+ exchange after addition of external calcium. EGTA inhibit the response to suboptimal concentrations of NH4Cl, and BAPTA increased the effect of NH4Cl. There is a clear relationship between NH4Cl-mediated calcium release and histamine release, since those drugs that inhibit this release also inhibit NH4Cl-mediated histamine release; nevertheless, NH4Cl-mediated histamine release was possible in the absence of any calcium release, as shown with BAPTA. This data, in combination with the results with PKC inhibitors, suggest that calcium is not only unnecessary to trigger cell activation, but also that it may be a negative modulator of NH4Cl-mediated exocytosis.
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Affiliation(s)
- A Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, USC, 27002 Lugo, Spain
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Abstract
OBJECTIVE The primary objective of this study was to test the comparability of digital photography and visual estimation procedures for estimating food intake. RESEARCH METHODS AND PROCEDURES The study sample included 71 breakfast meals and 59 lunch meals eaten in a university cafeteria during a single day. A total of 66 different foods were employed as test foods that could be selected by the students. Food selections and plate waste, as estimated by digital photography and visual estimation, were compared. For digital photography, three observers independently estimated portion sizes of each food item based upon digital photographs. One observer estimated portion sizes in the cafeteria setting, using visual estimation, a method that has been validated in other studies. RESULTS To test the accuracy of the two procedures for measuring food intake, the estimates of food weights derived from both procedures were compared using Bland-Altman regression. In comparison to visual estimation, the digital photography method yielded comparable estimates of food selections, plate waste, and total food intake for seven of nine comparisons. The two methods of estimating food portions yielded comparable results for most (78%) types of foods. The two methods also yielded similar variability. DISCUSSION These findings suggest that the digital photography method is an alternative to the traditional method of estimating food intake via direct observation.
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Affiliation(s)
- D A Williamson
- Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
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50
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Abstract
N,N-Dimethyl-D-erythro-sphingosine (DMS) is the N-methyl derivative of sphingosine; both are activators of sphingosine-dependent protein kinases. The aim of this work was to study the effect of DMS on cytosolic calcium and intracellular pH (pHi) in human T lymphocytes. The variations of calcium and pH were determined by fluorescence digital imaging using Fura-2-AM and BCECF-AM, respectively. DMS increased both pHi and Ca(2+)-cytoslic in human T lymphocytes. These effects were dose-dependent. This drug induced a fast increase in pHi and a release of calcium from different intracellular calcium pools than thapsigargin. DMS also induced a Ca(2+)-influx different from the store-operated calcium channels, since drug effect was not modified by 30 microM SKF 96365. The influx of calcium induced by DMS was completely blocked by preincubation in the presence of nickel, or lanthanum, while the increase in pHi was no affected. However, the presence of cadmium reduced but does not block Ca(2+)-influx. The inhibition of G-protein by 100 ng/mL pertussis toxin, and the inhibition of tyrosine kinases by genistein significantly reduced the cytosolic calcium increase induced by DMS by an inhibition of both, release of calcium from intracellular pools and influx from extracellular medium. The inhibition of pools emptiness by these drugs was related with the inhibition that they induce in the DMS cytosolic alcalinization. In summary, DMS increases pHi and as consequence releases calcium from intracellular pools, and it increases calcium-influx through a channel different from store-operated channel (SOC). Both cytosolic calcium and pHi increase are modulated by G-proteins and tyrosine kinases.
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Affiliation(s)
- A Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, 27002 Lugo, Spain
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