3D-Printing of Capsule Devices as Compartmentalization Tools for Supported Reagents in the Search of Antiproliferative Isatins.

The application of high throughput synthesis methodologies in the generation of active pharmaceutical ingredients (APIs) currently requires the use of automated and easily scalable systems, easy dispensing of supported reagents in solution phase organic synthesis (SPOS), and elimination of purification and extraction steps. The recyclability and recoverability of supported reagents and/or catalysts in a rapid and individualized manner is a challenge in the pharmaceutical industry. This objective can be achieved through a suitable compartmentalization of these pulverulent reagents in suitable devices for it. This work deals with the use of customized polypropylene permeable-capsule devices manufactured by 3D printing, using the fused deposition modeling (FDM) technique, adaptable to any type of flask or reactor. The capsules fabricated in this work were easily loaded "in one step" with polymeric reagents for use as scavengers of isocyanides in the work-up process of Ugi multicomponent reactions or as compartmentalized and reusable catalysts in copper-catalyzed cycloadditions (CuAAC) or Heck palladium catalyzed cross-coupling reactions (PCCCRs). The reaction products are different series of diversely substituted isatins, which were tested in cancerous cervical HeLa and murine 3T3 Balb fibroblast cells, obtaining potent antiproliferative activity. This work demonstrates the applicability of 3D printing in chemical processes to obtain anticancer APIs.

Validation of the Jefferson Scale of Physician Empathy in Spanish medical students who participated in an Early Clerkship Immersion programme.

BACKGROUND: The Jefferson Scale of Physician Empathy is the most widely used instrument to measure empathy in the doctor-patient relationship. This work pursued cultural adaptation and validation of the original scale, in its health professions version (JSE-HP), for medical students who participate in an Early Clerkship Immersion Programme of a Spanish university. METHODS: The questionnaire was replied by 506 1st, 2nd, 3rd and 5th year medical students from Universidad Francisco de Vitoria, Madrid, in 2014 and 2016. Internal consistency was analysed by means of Cronbach's alpha, and reliability by means of test-retest using the intraclass correlation coefficient and the Bland-Altman method. The construct validity was checked by means of confirmatory factor analysis and association with other empathy-related variables. Criterion validity was compared using Davis' Interpersonal Reactivity Index. RESULTS: Cronbach's alpha was 0.82 (range 0.80-0.85). Item-total score correlations were positive and significant (median 0.45, p <  0.01). The test-retest intraclass correlation coefficient was 0.68 (0.42-0.82). The factor analysis confirmed the three original factors: "perspective taking", "compassionate care" and "standing in the patient's shoes". Women and students who preferred specialities focused on persons obtained the best scores. The JSE-HP scores were positively correlated with Interpersonal Reactivity Index, personality traits were associated with empathy, clinical interview skills and Objective Structured Clinical Examinations. CONCLUSION: The results support the validity and reliability of JSE-HP applied to Spanish medical students.

Artificial neural networks as alternative tool for minimizing error predictions in manufacturing ultradeformable nanoliposome formulations.

This work was aimed at determining the feasibility of artificial neural networks (ANN) by implementing backpropagation algorithms with default settings to generate better predictive models than multiple linear regression (MLR) analysis. The study was hypothesized on timolol-loaded liposomes. As tutorial data for ANN, causal factors were used, which were fed into the computer program. The number of training cycles has been identified in order to optimize the performance of the ANN. The optimization was performed by minimizing the error between the predicted and real response values in the training step. The results showed that training was stopped at 10 000 training cycles with 80% of the pattern values, because at this point the ANN generalizes better. Minimum validation error was achieved at 12 hidden neurons in a single layer. MLR has great prediction ability, with errors between predicted and real values lower than 1% in some of the parameters evaluated. Thus, the performance of this model was compared to that of the MLR using a factorial design. Optimal formulations were identified by minimizing the distance among measured and theoretical parameters, by estimating the prediction errors. Results indicate that the ANN shows much better predictive ability than the MLR model. These findings demonstrate the increased efficiency of the combination of ANN and design of experiments, compared to the conventional MLR modeling techniques.

Tratamiento de la depresión con bupropión en monoterapia / No disponible

No disponible

Papel de bupropión en el tratamiento de la depresión resistente. Manejo de bupropión en combinación / No disponible

No disponible

Uso de bubropión en pacientes ancianos / No disponible

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Bupropión y patología dual / No disponible

No disponible

Tolerancia y perfil de efectos secundarios de bupropión / No disponible

No disponible

Bupropión y depresión bipolar / No disponible

No disponible

Increased mortality and morbidity associated with thyroidectomy for intrathoracic goiters reaching the carina tracheae.

HYPOTHESIS: Complications associated with thyroidectomy for intrathoracic goiters have been underestimated because of the lack of a precise definition of high-risk patients. DESIGN: Retrospective multicenter multinational review of medical records and radiographic images of patients who underwent thyroidectomy for intrathoracic goiters reaching the carina tracheae. Demographic, clinical, operative, anatomical, and pathological data were recorded. RESULTS: There were 35 patients (mean +/- SE age, 63 +/- 11 years) included in the study. In 4 patients, the goiter was asymptomatic; 10 patients had dysphagia, 24 patients had dyspnea, and 3 patients had superior vena cava syndrome. A median sternotomy was required in 12 patients and a right-sided thoracotomy in 1 patient. The mean +/- SE operative time was 145 +/- 72 minutes (range, 50-360 minutes). Transient hypoparathyroidism developed in 13 patients. Four patients experienced transient hoarseness, and 1 patient had permanent vocal cord paralysis. There were no significant differences between the proportion of patients who underwent or did not undergo sternotomy or thoracotomy regarding vocal cord dysfunction (2 [15%] of 13 patients vs 3 [13%] of 22 patients) or hypoparathyroidism (5 [38%] of 13 vs 6 [28%] of 22 patients). The mean postoperative hospital stay was 10 days (range, 2-84 days). Four patients required reoperation. Two patients died. Nine of 14 patients with thyroid glands weighing at least 260 g required sternotomy vs 3 of 14 patients with thyroid glands weighing less than 260 g (P = .02). Overall, 18 [52%] of 35 patients were discharged without any complication. CONCLUSION: Intrathoracic goiters reaching the carina tracheae carry a high unreported risk of sternotomy, postoperative complications, reoperation, and death.

Adherence to antiretroviral therapy among HIV-infected prison inmates (Spain).

This cross-sectional study was carried out in two Spanish prisons. A group of 177 HIV-infected prison inmates were interviewed. Standardized personal interviews using a structured questionnaire were conducted to assess sociodemographic features and prison setting characteristics, clinical variables, social support and drug consumption. A simplified four-item questionnaire for self-reported adherence was used. A total of 24.3% were non-adherent. Predictors of non-adherence in the multivariate analysis included poor or lack of ability to follow the prescribed treatment regimen, no visits in a month, anxious and/or depressed mood, difficulty in taking medication, receiving methadone treatment, cannabis consumption and robbery as the reason for imprisonment. Adherence to antiretroviral therapy was higher than in the wider community. However, other variables related to the correctional setting, such as assignments within the facility, adaptability of the prison system to authorize the cell being opened in the event of missed medication, or legal situation had no effect on adherence for inmates with HIV disease.

Serologic evidence of West Nile virus infection in horses, Yucatan State, Mexico.

Serum samples were obtained from 252 horses in the State of Yucatan, Mexico, from July to October 2002. Antibodies to West Nile virus were detected by epitope-blocking enzyme-linked immunosorbent assays in three (1.2%) horses and confirmed by plaque reduction neutralization test. We report the first West Nile virus activity in the State of Yucatan.

Testículo feminizante: revisión de la entidad y presentación de un caso / Testicular feminization: review of the entity and presentation of a case

Se hace una revición de la entidad testículo feminizante; se analizan su incidencia, etiología, genética, endocrinología, anatomía patológica, ubicación, cuadro clínico y tratamiento. Se hace la presentación de un caso de testículo feminizante y se analizan los resultados

Testículo feminizante: revisión de la entidad y presentación de un caso / Testicular feinization: review of the entity and presentation of a case

Se hace una revición de la entidad testículo feminizante; se analizan su incidencia, etiología, genética, endocrinología, anatomía patológica, ubicación, cuadro clínico y tratamiento. Se hace la presentación de un caso de testículo feminizante y se analizan los resultados (AU)