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1.
Am J Vet Res ; 83(8)2022 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-35895792

RESUMEN

OBJECTIVE: To compare electroretinographic (ERG) responses obtained in dogs before and after oral administration of gabapentin, trazodone, and a combination of both medications. ANIMALS: 12 clinically normal dogs. PROCEDURES: A short-protocol ERG with 20 minutes of dark adaption was recorded for all dogs to establish baseline ERG responses. Dogs then received gabapentin (approx 30 mg/kg), trazadone (approx 20 mg/kg or approx 5 mg/kg), or a combination of gabapentin (approx 20 mg/kg) and trazodone (approx 5 mg/kg) orally, and the same ERG protocol was repeated 2 hours later. Dogs were given a washout period of at least 1 week between treatments. RESULTS: a-Wave amplitudes were significantly (P = 0.018) decreased after administration of the combination of gabapentin and trazodone. b-Wave amplitudes were significantly decreased after administration of the 20-mg/kg dose of trazodone (P = 0.006) and after administration of the combination of gabapentin and trazodone (P = 0.002). Heavier dogs that received higher total doses of trazodone had decreases in a-wave amplitude after administration of the 20-mg/kg dose of trazodone and in b-wave amplitude after administration of the 5-mg/kg dose of trazodone. CLINICAL RELEVANCE: High doses of trazodone and the combination of gabapentin and trazodone significantly decreased a-wave and b-wave amplitudes in clinically normal dogs. However, the effects on retinal responses had little clinical importance. Therefore, these medications can be used safely in a clinical setting; however, further studies are needed in dogs with retinal disease.


Asunto(s)
Trazodona , Administración Oral , Animales , Perros , Electrorretinografía/veterinaria , Gabapentina , Trazodona/farmacología
2.
Can Vet J ; 63(6): 617-626, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35656529

RESUMEN

Objective: Insulin dysregulation is a hallmark of equine metabolic syndrome (EMS) and increases the risk for development of laminitis. Accurate diagnosis of insulin dysregulation is crucial for implementation of preventative strategies in this population. The objective was to assess the effects of dexamethasone administration on insulin and glucose dynamics in light-breed horses and assess the agreement of various diagnostic tests for insulin dysregulation [basal [insulin] (BI), oral sugar test (OST), and combined glucose-insulin test (CGIT)]. Animal: Fourteen adult light-breed horses. Procedure: Prospective, experimental study to assess insulin and glucose dynamics by performing basal insulin, OST, and CGIT before (baseline) and post-dexamethasone administration (0.08 mg/kg, PO, q24h) for 7 d. Insulin and glucose dynamics were assessed by the BI, OST, CGIT, and insulin sensitivity proxy measurements (RISQI, QUICKI, FGIR, HOMA-IR, IG) at the baseline and post-dexamethasone time points. Results: The OST area under the insulin and glucose curves were increased following dexamethasone treatment (P < 0.001 and P < 0.01, respectively). Basal insulin, OST [insulin] at 60 min and CGIT [insulin] at 45 min were increased at the post-dexamethasone time point (P < 0.001, < 0.001, and < 0.01). Similarly, time spent in the positive glucose phase during the CGIT was longer at the post-dexamethasone time point (P < 0.001). The proxy measurements for insulin sensitivity (RISQI, QUICKI, FGIR) were decreased (P < 0.01) and the proxy measurements for insulin resistance (HOMA-IR) and ß-cell function (IG) were increased after dexamethasone administration (P < 0.01). More horses were classified with following dexamethasone administration, based on the diagnostic criteria for basal insulin (P = 0.03), OST (P = 0.01), and CGIT (P < 0.01). Kappa coefficients, measuring agreement between basal insulin, OST, and CGIT, showed none to moderate agreement at the baseline time point. Conclusion: Dexamethasone administration at 0.08 mg/kg, PO, q24h for 7 d worsened insulin dysregulation in adult light-breed horses based on findings of a basal insulin, OST, CGIT, and insulin sensitivity proxy measurements. There was none to moderate agreement between the basal insulin, OST, CGIT for the diagnosis of insulin dysregulation. Clinical relevance: Horses administered dexamethasone at a dose of 0.08 mg/kg, PO, q24h for 7 d should be considered insulin dysregulation and appropriate preventative strategies should be implemented. The variability of diagnostic performance of common tests for insulin dysregulation (basal insulin, OST, CGIT) may affect clinical decisions; therefore, performing multiple tests, including proxy measurements, may improve diagnostic accuracy of insulin dysregulation.


Objectif: La dysrégulation de l'insuline est une caractéristique du syndrome métabolique équin (EMS) et augmente le risque de développement de la fourbure. Un diagnostic précis de la dysrégulation de l'insuline est crucial pour la mise en oeuvre de stratégies préventives dans cette population. L'objectif était d'évaluer les effets de l'administration de dexaméthasone sur la dynamique de l'insuline et du glucose chez les chevaux de race légère et d'évaluer la concordance de divers tests de diagnostic pour le dérèglement de l'insuline [insuline basale] (BI), test de sucre oral (OST) et un test glucose-insuline combiné (CGIT). Animal: Quatorze chevaux adultes de race légère. Procédure: Étude prospective et expérimentale pour évaluer la dynamique de l'insuline et du glucose en effectuant l'insuline basale, l'OST et le CGIT avant (valeur de base) et après l'administration de dexaméthasone (0,08 mg/kg, PO, q24h) pendant 7 jours. La dynamique de l'insuline et du glucose a été évaluée par les mesures indirectes de BI, de l'OST, du CGIT et de la sensibilité à l'insuline (RISQI, QUICKI, FGIR, HOMA-IR, IG) aux points temporels de base et post-dexaméthasone. Résultats: La zone OST sous les courbes d'insuline et de glucose a augmenté après le traitement à la dexaméthasone (P < 0,001 et P < 0,01, respectivement). L'insuline basale, l'OST [insuline] à 60 minutes et le CGIT [insuline] à 45 minutes ont augmenté au point temporel post-dexaméthasone (P < 0,001, < 0,001 et < 0,01). De même, le temps passé dans la phase de glucose positif pendant le CGIT était plus long au moment post-dexaméthasone (P < 0,001). Les mesures indirectes de la sensibilité à l'insuline (RISQI, QUICKI, FGIR) ont diminué (P < 0,01) et les mesures indirectes de la résistance à l'insuline (HOMA-IR) et de la fonction des cellules ß (IG) ont augmenté après l'administration de dexaméthasone (P < 0,01). Plus de chevaux ont été classés avec l'administration suivante de dexaméthasone, sur la base des critères de diagnostic de l'insuline basale (P = 0,03), OST (P = 0,01) et CGIT (P < 0,01). Les coefficients Kappa, mesurant la concordance entre l'insuline basale, l'OST et le CGIT, ont montré une concordance nulle à modérée au point de référence. Conclusion: L'administration de dexaméthasone à 0,08 mg/kg, PO, toutes les 24 h pendant 7 jours a aggravé la dysrégulation de l'insuline chez les chevaux adultes de race légère d'après les résultats d'une insuline basale, d'OST, de CGIT et de mesures indirectes de la sensibilité à l'insuline. Il n'y avait aucun accord à modéré entre l'insuline basale, l'OST, le CGIT pour le diagnostic de dysrégulation de l'insuline. Pertinence clinique: Les chevaux ayant reçu de la dexaméthasone à une dose de 0,08 mg/kg, PO, q24h pendant 7 jours doivent être considérés comme ayant un dérèglement de l'insuline et des stratégies préventives appropriées doivent être mises en oeuvre. La variabilité des performances diagnostiques des tests courants de dysrégulation de l'insuline (insuline basale, OST, CGIT) peut affecter les décisions cliniques; par conséquent, la réalisation de plusieurs tests, y compris des mesures indirectes, peut améliorer la précision du diagnostic du dérèglement de l'insuline.(Traduit par Dr Serge Messier).


Asunto(s)
Enfermedades de los Caballos , Resistencia a la Insulina , Animales , Glucemia/metabolismo , Dexametasona/farmacología , Dexametasona/uso terapéutico , Glucosa/metabolismo , Prueba de Tolerancia a la Glucosa/veterinaria , Enfermedades de los Caballos/diagnóstico , Enfermedades de los Caballos/tratamiento farmacológico , Caballos , Insulina/metabolismo , Resistencia a la Insulina/fisiología , Estudios Prospectivos
3.
Health Care Anal ; 28(2): 176-192, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32350751

RESUMEN

Publicly-funded health systems, including those national health services and social or National Health Insurances, are institutionalized solidarity in health. In Europe, solidarity originated from the legacies of labor movements, the Judeo-Christian traditions, and nationalist sentiments in the re-construction Era after the WWII. In middle-to-high income East Asian countries, such as Japan, Taiwan, Korea, the health systems were built on different grounds and do not have such ethical origins of solidarity. As health systems in Europe and East Asia are both facing sustainability crises due to aging population, stagnant economy, changing boundaries, and advancing medical technologies, how those systems with the European solidaristic ethical traditions can be revived and how those without the European traditions could survive become a matter of theoretical interests and an urgent policy problem to be addressed. Drawing on contemporary theories of solidarity, this essay analyzes the boundary problem and its impact on the sustainability of the health system in Taiwan. It then considers two plausible origins of solidarity in Taiwan. One is the re-emerged civic nationalism, and the other is an ethos of common life. It is argued that after years of implementation, the National Health Insurance in Taiwan might have shaped the social values and people's habits and formed an ethos of common life. Such ethos could be an ethical origin of solidarity in non-western societies and help the health systems endure the prolonged sustainability crises.


Asunto(s)
Envejecimiento , Principios Morales , Programas Nacionales de Salud/ética , Marginación Social , Humanos , Taiwán
4.
BMJ Open ; 10(2): e033898, 2020 02 25.
Artículo en Inglés | MEDLINE | ID: mdl-32102816

RESUMEN

OBJECTIVES: Current mortality prediction models used in the intensive care unit (ICU) have a limited role for specific diseases such as influenza, and we aimed to establish an explainable machine learning (ML) model for predicting mortality in critically ill influenza patients using a real-world severe influenza data set. STUDY DESIGN: A cross-sectional retrospective multicentre study in Taiwan SETTING: Eight medical centres in Taiwan. PARTICIPANTS: A total of 336 patients requiring ICU-admission for virology-proven influenza at eight hospitals during an influenza epidemic between October 2015 and March 2016. PRIMARY AND SECONDARY OUTCOME MEASURES: We employed extreme gradient boosting (XGBoost) to establish the prediction model, compared the performance with logistic regression (LR) and random forest (RF), demonstrated the feature importance categorised by clinical domains, and used SHapley Additive exPlanations (SHAP) for visualised interpretation. RESULTS: The data set contained 76 features of the 336 patients with severe influenza. The severity was apparently high, as shown by the high Acute Physiology and Chronic Health Evaluation II score (22, 17 to 29) and pneumonia severity index score (118, 88 to 151). XGBoost model (area under the curve (AUC): 0.842; 95% CI 0.749 to 0.928) outperformed RF (AUC: 0.809; 95% CI 0.629 to 0.891) and LR (AUC: 0.701; 95% CI 0.573 to 0.825) for predicting 30-day mortality. To give clinicians an intuitive understanding of feature exploitation, we stratified features by the clinical domain. The cumulative feature importance in the fluid balance domain, ventilation domain, laboratory data domain, demographic and symptom domain, management domain and severity score domain was 0.253, 0.113, 0.177, 0.140, 0.152 and 0.165, respectively. We further used SHAP plots to illustrate associations between features and 30-day mortality in critically ill influenza patients. CONCLUSIONS: We used a real-world data set and applied an ML approach, mainly XGBoost, to establish a practical and explainable mortality prediction model in critically ill influenza patients.


Asunto(s)
Enfermedad Crítica/mortalidad , Gripe Humana/mortalidad , Aprendizaje Automático , Adulto , Estudios Transversales , Femenino , Mortalidad Hospitalaria , Humanos , Masculino , Persona de Mediana Edad , Modelos Teóricos , Evaluación de Resultado en la Atención de Salud , Estudios Retrospectivos , Taiwán
5.
BMC Pregnancy Childbirth ; 17(1): 302, 2017 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-28899350

RESUMEN

BACKGROUND: During pregnancy, the hyperdynamic physiology of circulation can exacerbate many cardiovascular disorders. Congestive heart failure (CHF) usually occurs during late pregnancy, which is significantly associated with a high level of maternal and neonatal morbidities and mortalities. The profile of women who develop peripartum CHF (PCHF) is unknown. We investigated the epidemiological profiles of PCHF. METHODS: In this retrospective cohort study, PCHF patients were identified using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes in Taiwan's National Health Insurance Research Database. Risk factors and obstetric outcomes were compared in women with and without PCHF. RESULTS: From 2,115,873 birth-mothers in Taiwan between 1997 and 2013, we identified 512 with PCHF (incidence: 24.20/105). More women with than without PCHF were older (≥ 35, 18.16% vs. 9.62%), and had more multifetal gestations (7.42% vs. 1.40%), gestational hypertension (HTN) (19.2% vs. 1.31%), and gestational diabetes mellitus (4.10% vs. 0.67%). After the analysis had been adjusted for confounders, the leading comorbidities associated with PCHF were structural heart diseases (adjusted odds ratio [aOR]: 67.21; 95% confidence interval [CI]: 54.29-83.22), pulmonary diseases (aOR: 13.12; 95% CI: 10.28-16.75), chronic HTN (aOR: 11.27; 95% CI: 6.94-18.28), thyroid disease (aOR: 9.53; 95% CI: 5.27-17.23), and gestational HTN (aOR: 5.16; 95% CI: 3.89-6.85). PCHF patients also had a higher rate of cesarean sections (66.41% vs. 34.46%; p < 0.0001). CONCLUSION: Maternal structural heart diseases, pulmonary diseases, thyroid disorders, and preexisting or gestational HTN are associated with a higher risk of developing PCHF. Birth-mothers with PCHF also had a higher risk of caesarean section and adverse outcomes, including maternal death. Our findings should benefit healthcare providers, and government and health insurance policy makers.


Asunto(s)
Cardiopatías Congénitas/epidemiología , Insuficiencia Cardíaca/epidemiología , Hipertensión Inducida en el Embarazo/epidemiología , Enfermedades Pulmonares/epidemiología , Complicaciones Cardiovasculares del Embarazo/epidemiología , Enfermedades de la Tiroides/epidemiología , Adulto , Factores de Edad , Cesárea/estadística & datos numéricos , Comorbilidad , Diabetes Gestacional/epidemiología , Femenino , Humanos , Incidencia , Periodo Periparto , Embarazo , Embarazo Múltiple/estadística & datos numéricos , Estudios Retrospectivos , Factores de Riesgo , Taiwán/epidemiología , Adulto Joven
7.
Neurosci Lett ; 653: 168-172, 2017 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-28549932

RESUMEN

We aimed to investigate the local anesthetic effect of 2-adamantanamine in spinal anesthesia. The dose-response curves were constructed after intrathecally injecting the rats with five doses of 2-adamantanamine and a common local anesthetic mepivacaine. The quality and duration of 2-adamantanamine at producing spinal nociceptive, proprioceptive and motor block were compared with that of mepivacaine. We revealed that 2-adamantanamine provoked spinal nociceptive, proprioceptive and motor block dose-dependently. On the 50% effective dose (ED50) basis, the rank of potency was mepivacaine >2-adamantanamine at producing spinal nociceptive, proprioceptive and motor block (p<0.05 for the differences). 2-Adamantanamine, but not mepivacaine produced more nociceptive block than motor block (p<0.05). At the equianesthetic doses (ED75, ED50, and ED25), the nociceptive block duration caused by 2-adamantanamine was greater than that caused by mepivacaine (p<0.01 for the differences). These preclinical data showed that 2-adamantanamine is less potent than mepivacaine, while 2-adamantanamine provokes greater duration of spinal nociceptive block than mepivacaine. Furthermore, 2-adamantanamine demonstrates a more nociceptive-selective action over motor block.


Asunto(s)
Amantadina/administración & dosificación , Anestésicos/administración & dosificación , Inyecciones Espinales , Bloqueo Nervioso/métodos , Amantadina/análogos & derivados , Animales , Relación Dosis-Respuesta a Droga , Masculino , Mepivacaína/administración & dosificación , Actividad Motora/efectos de los fármacos , Nocicepción/efectos de los fármacos , Propiocepción/efectos de los fármacos , Ratas Sprague-Dawley
9.
Intern Med ; 53(21): 2543-6, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25366019

RESUMEN

Pseudomonas stutzeri (P. stutzeri) is a Gram-negative, non-fermenting rod. It is a rare pathogen; therefore, its isolation is often associated with colonization or contamination. We herein describe the first reported case of necrotizing pneumonia caused by P. stutzeri in a non-HIV infected patient with previously undiagnosed pulmonary tuberculosis. The isolate was found to be antibiotic resistant, which led to the failure of the initial treatment. This case highlights the unique presentation of necrotizing pneumonia caused by P. stutzeri and the importance of emerging antimicrobial resistance in P. stutzeri.


Asunto(s)
Neumonía Bacteriana/microbiología , Infecciones por Pseudomonas/microbiología , Pseudomonas stutzeri/aislamiento & purificación , Tuberculosis Pulmonar/microbiología , Anciano , Antibacterianos/uso terapéutico , Diagnóstico Diferencial , Humanos , Masculino , Necrosis/complicaciones , Necrosis/diagnóstico , Necrosis/microbiología , Neumonía Bacteriana/diagnóstico , Infecciones por Pseudomonas/diagnóstico , Radiografía Torácica , Tomografía Computarizada por Rayos X , Tuberculosis Pulmonar/diagnóstico
10.
J Chem Phys ; 128(4): 044719, 2008 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-18247993

RESUMEN

A density functional approach is applied to investigate the effect of molecular structure on wetting behavior of water+amphiphile mixtures. The interaction-site model is employed to describe isomeric amphiphile structures. The hydrogen bonding between water and amphiphile is mimicked by energy enhancement according to specific molecular orientation. The calculations show that these systems exhibit Cahn-type criticality-related wetting transitions and pronounced adsorption behavior difference between isomeric systems. Excellent qualitative agreements with experiments are achieved.

11.
J Phys Chem B ; 110(7): 3294-301, 2006 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-16494343

RESUMEN

The statistical associating fluid theory of Wertheim is applied to describe binary mixtures with associating between unlike-pair molecules. The phase behavior of this binary mixture would fall into five different types (I, II, III, V, and VI) of the classification scheme of van Konynenburg and Scott by varying the associating strength and the energy parameters. Both interfacial wetting behavior and wetting transitions are carefully examined in all the vapor-liquid-liquid (gamma-beta-alpha) three-phase-coexisting regions of the binary mixtures. The global wetting behavior and wetting transitions are delineated by scanning the parameter space. In certain regions, the middle beta phase exhibits interfacial phase transitions sequentially, nonwetting --> partial-wetting --> nonwetting, at the interface separating lower alpha and upper gamma phases along with increasing temperature.

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