Pre-duodenal lipid digestion of emulsions: Relevance, colloidal aspects and mechanistic insight.

The digestion of lipids in the human body has several health and nutritional implications. Lipid digestion is an interfacial phenomenon meaning that water-soluble lipases need to first adsorb to the oil-water interface before enzymatic conversions can start. The digestion of lipids mainly occurs on colloidal structures dispersed in water, such as oil-in-water (o/w) emulsions, which can be designed during food formulation/processing or structured during digestion. From a food design perspective, different in vitro studies have demonstrated that the kinetics of lipid digestion can be influenced by emulsion properties. However, most of these studies have been performed with pancreatic enzymes to simulate lipolysis in the small intestine. Only few studies have dealt with lipid digestion in the gastric phase and its subsequent impact on intestinal lipolysis. In this aspect, this review compiles information on the physiological aspects of gastric lipid digestion. In addition, it deals with colloidal and interfacial aspects starting from emulsion design factors and how they evolve during in vitro digestion. Finally, molecular mechanisms describing gastric lipolysis are discussed.

Various Clinical Scenarios in Secondary Malignant Lymphedema.

Diagnosing malignant lymphedema is a challenge in daily clinical practice. Clinically, patients may show clear signs of malignancy, but this is not always the case, and at times the diagnosis is not straightforward. In some patients, pain, hardness of the tissues, joint stiffness, proximal involvement, collateral circulation, or an acute onset will provide the clue to determining malignancy. Our aim is to describe several diverse scenarios of Secondary Malignant Lymphedema (SML) with the etiopathogenesis. One possible cause is lymphatic obstruction due to extrinsic compression of lymphatic vessels and/or nodes by either the primary tumor or metastatic masses. Lymphatic obstruction can also be caused by tumoral infiltration. This infiltration can affect both deep and regional nodes as well as cutaneous and subcutaneous vessels and is commonly known as lymphangitis carcinomatosa. Malignant lymphedema can also be secondary to obstruction of the venous flow due to tumoral venous thromboembolism or to extrinsic compression of the veins by tumors or adenopathic masses. Nevertheless, the most frequent cause of this illness is a mixed mechanism of compression of the lymphatic and venous systems. Frequently, SML is the first manifestation of relapse. When lymphedema appears abruptly, is progressive, with intense pain, associated with collateral circulation, or with hard and infiltrated skin or joint stiffness, SML must be ruled out with an urgent referral to the oncologist and an imaging evaluation.

Kinetic Modeling of In Vitro Small Intestinal Lipid Digestion as Affected by the Emulsion Interfacial Composition and Gastric Prelipolysis.

This research evaluated the impact of the emulsion interfacial composition on in vitro small intestinal lipolysis kinetics with the inclusion of rabbit gastric lipase resulting in a gastric prelipolysis step. O/w emulsions contained 5% triolein (w/w) and 1% (w/w) of the following emulsifiers: sodium taurodeoxycholate, citrus pectin, soy protein isolate, soy lecithin, and tween 80. Emulsions were subjected to static in vitro digestion and diverse lipolysis species quantified via a HPLC-charged aerosol detector. Single-response modeling indicated that the kinetics of lipolysis in the small intestinal phase were impacted by the emulsion particle size at the beginning of this phase. Multiresponse modeling permitted the elucidation of the lipolysis mechanism under in vitro conditions. The final reaction scheme included enzymatic and chemical conversions. The modeling strategies used in this research allowed to gain more insights into the kinetics and mechanism of in vitro lipid digestion.

Youth and the COVID-19 crisis: Lessons learned from a human rights-based prevention programme for youths in São Paulo, Brazil.

Youths living in crowded impoverished urban areas face higher risk of infection by SARS-CoV-2. This article presents lessons learned from a preventive intervention project intersected by the COVID-19 crisis that moved from a mix-methods study design to online ethnography. The 'home-officed' research team e-witnessed high-school students' daily lives and collaborated in youths' and community-based organisations' responses in the territories where they study and live. Psychosocial distress increased, also driven by the disastrous governmental response to the health and economic crises. There was growing anxiety about meeting friends and dating, with structural limits for sustaining the recommended social distancing, which added to gender/sexuality-based violence. Simultaneously, we observed students becoming relevant actors through co-producing preventive practices, surpassing risk-group notions and combining SARS-CoV-2 prevention with sexuality, gender, racism and mental-health issues. They managed internet-mediated applications to promote critical thinking and collective actions aimed at health promotion among their peers, from their homes. Freire's concept of 'untested-feasibility' fostered researchers', students' and community leaders' imaginations in the face of this unprecedented crisis, thereby enhancing social responses to the epidemic to become rights-based comprehensive dialogical preventive activities. This ongoing intervention-research stresses how prevention sciences can go beyond reduction of this pandemic to a viral event.

The construction of autonomy for professionals who work with drug users: An analysis of two intervention projects in the largest asylum centre in Brazil.

Based on results of two intervention projects with professionals working with drug users in Sorocaba, São Paulo, the article discusses the possibilities of health promotion in the field of mental health, understood as a form of resistance to the regulatory powers of official policies. The projects proved to be promising for the construction of autonomy of these workers. The guiding principles of humanized care in health care and respect for human rights of drug users proved to be important tools for these interventions as were university extramural activities.

Quimioembolización transarterial con partículas liberadoras de doxorrubicina frente a quimioembolización transarterial convencional en carcinomas hepatocelulares irresecables: un estudio de eficacia, seguridad y gastos / Trans-arterial chemoembolization with doxorubicin-eluting particles versus conventional trans-arterial chemoembolization in Unresectable Hepatocellular carcinoma: a study of effectiveness, safety and costs

Objetivo. Comparar la efectividad, supervivencia y coste de la quimioembolización transarterial con partículas liberadoras de doxorrubicina (DEB-TACE) y la quimioembolización convencional (cTACE) en pacientes con carcinoma hepatocelular (CHC) irresecable. Material y métodos. Estudio unicéntrico, observacional y retrospectivo que comparó 60 pacientes con CHC irresecable separados en dos grupos comparables de 30 pacientes tratados con DEB-TACE y otros 30 con cTACE. Se realizaron las pruebas de χ2 y t de Student, y se utilizó el método de Kaplan Meier. Resultados. La supervivencia fue menor en hombres y en pacientes con hepatitis C (p = 0,014 y p = 0,003, respectivamente). No hubo diferencias estadísticamente significativas en la supervivencia global a los 5 años (29,99 meses; IC del 95%: 21,38-38,60 y 30,67 meses; IC del 95%: 22,65-38,70; p = 0,626) y la supervivencia libre de progresión (mediana: 11,57 meses; IC del 95%: 0,97-22,18 y 12,80 meses; IC del 95%: 0,00-32,37; p = 0,618). El tiempo medio de ingreso fue de 2,6 y 5,4 días (p < 0,001) para DEB-TACE y cTACE, respectivamente. La toxicidad grado 2-4 fue superior en el grupo cTACE (54 y 31; p < 0,001). El coste del tratamiento fue de 1.581 Euros con DEB-TACE y de 514,63 Euros con cTACE. El coste total medio fue de 3.134 Euros y 3.694,35 Euros, respectivamente (p = 0,173). Conclusión. La quimioembolización en pacientes con CHC irresecable tiene una supervivencia global cercana a 30 meses a los 5 años, independientemente de la técnica empleada. Los costes globales son similares, aunque la mejor tolerancia de la DEB-TACE justifica el mayor coste del procedimiento (AU)

Objectives. To compare the effectiveness, survival and cost in patients with unresectable hepatic cell carcinoma (HCC) treated with trans-arterial chemoembolization using doxorubicin-eluting beads (DEB-TACE) versus conventional TACE (cTACE) in clinical practice. Material and methods. This single-centered retrospective observational study compared 60 consecutive HCC unresectable patients: 30 were treated with DEB-TACE and 30 used cTACE. Comparisons were with χ2 test, Student t-test, and Kaplan Meier method. Results. Of the 60 patients with HCC in non-curative stage, baseline characteristics were similar for both groups of treatment, and of these we observed lower survival in male patients and those who had hepatitis C virus (p = 0.014 and p = 0.003, respectively). No statistically significant differences were observed as a function of treatment employed with respect to overall survival (OS) at 5 years (29.99 months; 95%CI: 21.38-38.60 versus 30.67 months; 95%CI:22.65-38.70; p = 0.626) and progression free survival (PFS) median of 11.57 months (95%CI: 0.97-22.18) versus 12.80 months (95%CI:0.00-32.37; p = 0.618). The median length of hospital admission were 2.6 and 5.4 days (p < 0.001) for DEB-TACE and cTACE, respectively. Toxicities grade 2-4 were higher in cTACE group (54 versus 31; p < 0.001). The cost of the treatment was 1581 Euros for DEB-TACE and 514.63 Euros for cTACE. The overall mean cost of intervention was 3134 Euros and 3694.35 Euros, respectively (p = 0.173). Conclusions. Chemoembolization in patients with unresectable HCC achieved OS close to 30 months at 5 years, independent of the technique employed. Similar overall costs but better tolerance of the DEB-TACE justified the higher costs of the procedure (AU)

Trans-arterial chemoembolization with doxorubicin-eluting particles versus conventional trans-arterial chemoembolization in unresectable hepatocellular carcinoma: A study of effectiveness, safety and costs.

OBJECTIVES: To compare the effectiveness, survival and cost in patients with unresectable hepatic cell carcinoma (HCC) treated with trans-arterial chemoembolization using doxorubicin-eluting beads (DEB-TACE) versus conventional TACE (cTACE) in clinical practice. MATERIAL AND METHODS: This single-centered retrospective observational study compared 60 consecutive HCC unresectable patients: 30 were treated with DEB-TACE and 30 used cTACE. Comparisons were with χ(2) test, Student t-test, and Kaplan Meier method. RESULTS: Of the 60 patients with HCC in non-curative stage, baseline characteristics were similar for both groups of treatment, and of these we observed lower survival in male patients and those who had hepatitis C virus (p=0.014 and p=0.003, respectively). No statistically significant differences were observed as a function of treatment employed with respect to overall survival (OS) at 5 years (29.99 months; 95%CI: 21.38-38.60 versus 30.67 months; 95%CI:22.65-38.70; p=0.626) and progression free survival (PFS) median of 11.57 months (95%CI: 0.97-22.18) versus 12.80 months (95%CI:0.00-32.37; p=0.618). The median length of hospital admission were 2.6 and 5.4 days (p<0.001) for DEB(-)TACE and cTACE, respectively. Toxicities grade 2-4 were higher in cTACE group (54 versus 31; p<0.001). The cost of the treatment was 1581 € for DEB(-)TACE and 514.63 € for cTACE. The overall mean cost of intervention was 3134 € and 3694.35 €, respectively (p=0.173). CONCLUSIONS: Chemoembolization in patients with unresectable HCC achieved OS close to 30 months at 5 years, independent of the technique employed. Similar overall costs but better tolerance of the DEB-TACE justified the higher costs of the procedure.

Takayasu's arteritis associated with Crohn's disease

No disponible

Los elementos decorativos ambientales en el Área de Imagen Médica mejoran la percepción de agradabilidad del paciente / Decorative elements in the medical imaging area improve patients’ perception of pleasantness

Objetivos: Valorar la sensación de agradabilidad percibida por los pacientes que acuden al servicio de radiología asociada a la instalación de elementos decorativos ambientales. Material y métodos: Los recursos materiales consistieron en la implantación de obras de arte en los techos en forma de «ventanas mágicas» y paneles en las paredes de las salas de espera y pasillos del Área de Imagen, respectivamente, que representan elementos ambientales de la naturaleza. Posteriormente, a los pacientes se les dio un breve cuestionario con datos generales y preguntas (tristeza-alegría, frialdad-calidez, oscuridad-luminosidad y pesimismo-optimismo) sobre la percepción que le transmiten los elementos decorativos instalados. Resultados: De 150 cuestionarios recogidos, 142 pacientes rellenaron completa y adecuadamente el cuestionario. El estado de salud general de estos pacientes era bueno en 84 (56%), regular en 58 (39%) y malo en 8 (5%). La idea les pareció muy buena a 70 pacientes (47%), buena a 58 (39%), regular a 8 (5%), indiferente a 11 (7%), mala a 1 (1%) y muy mala a 2 pacientes (1%). La movilidad del paciente al realizar la consulta se distribuyó entre aquellos que venían andando (119 pacientes, 79%), estaban encamados (18 pacientes, 12%) y necesitaban silla de ruedas (13 pacientes, 9%). Conclusiones: Se ha constatado un alto nivel de satisfacción por parte de los pacientes cuando se valora la sensación percibida asociada a la instalación de elementos decorativos ambientales en las paredes y techos de las salas de espera y pasillos del Área de Imagen (AU)

Objectives: To evaluate the sensation of pleasantness perceived by patients attended in the radiology department in response to decorative elements hung on the walls in the waiting rooms and in the hallways of the imaging area. Material and methods: The material resources comprised works of art in the form of "magic windows" representing scenes from nature installed on the ceilings and walls of the waiting area and hallways of the imaging area. Patients were given a brief questionnaire with general data and questions (sadness-cheerfulness, coldness-warmth, darkness-light, and pessimism-optimism) about their perception of the decorative elements. Results: Of the 150 questionnaires collected, 142 were filled out correctly. The overall health of these patients was good in 84 (56%), not bad in 58 (39%), and poor in 8 (5%). The idea seemed very good to 70 patients (47%), good to 58 (39%), not bad to 8 (5%), indifferent to 11 (7%), bad to 1 (1%), and very bad to 2 (1%). As far a patients’ mobility, 119 patients (79%) walked into the department, 18 (12%) were wheeled in on beds, and 13 (9%) needed wheelchairs. Conclusions: We found a high level of satisfaction with the decorative elements (AU)

[Decorative elements in the medical imaging area improve patients' perception of pleasantness]. / Los elementos decorativos ambientales en el Área de Imagen Médica mejoran la percepción de agradabilidad del paciente.

OBJECTIVES: To evaluate the sensation of pleasantness perceived by patients attended in the radiology department in response to decorative elements hung on the walls in the waiting rooms and in the hallways of the imaging area. MATERIAL AND METHODS: The material resources comprised works of art in the form of "magic windows" representing scenes from nature installed on the ceilings and walls of the waiting area and hallways of the imaging area. Patients were given a brief questionnaire with general data and questions (sadness-cheerfulness, coldness-warmth, darkness-light, and pessimism-optimism) about their perception of the decorative elements. RESULTS: Of the 150 questionnaires collected, 142 were filled out correctly. The overall health of these patients was good in 84 (56%), not bad in 58 (39%), and poor in 8 (5%). The idea seemed very good to 70 patients (47%), good to 58 (39%), not bad to 8 (5%), indifferent to 11 (7%), bad to 1 (1%), and very bad to 2 (1%). As far a patients' mobility, 119 patients (79%) walked into the department, 18 (12%) were wheeled in on beds, and 13 (9%) needed wheelchairs. CONCLUSIONS: We found a high level of satisfaction with the decorative elements.

Transnodal lymphangiography in the diagnosis and treatment of genital lymphedema.

PURPOSE: To report the success of groin nodal lymphography in the diagnosis and treatment of genital lymphedema. METHODS AND MATERIALS: We present one female (8 years old [patient no. 1]) and two male (69 and [patient no. 2] 31 years old [patient no. 3], respectively) patients with genital lymphedema in whom conservative treatment failed. The girl also had lymphorrhagia. Genital lymphedema was caused by radical cystectomy (patient no. 2), lymphatic hyperplasia (patient no. 1), and idiopathic lymphangitis (patient no. 3). All of them underwent ultrasound-guided bilateral groin lymph node puncture. Afterward, 4-8 ml Lipiodol Ultra-Fluide (Guerbet) were injected at a rate of 0.2 ml/s. Lipiodol progression was assessed by fluoroscopy. Computed tomography scan of the abdomen and pelvis was performed immediately after and again at 24 h after the procedure to confirm the leak. The follow-up period was 15, 13, and 9 months, respectively. Technical success was considered as bilateral pelvic and abdominal filling of lymphatic vessels. Therapeutic success was considered as improvement or disappearance of genital lymphedema and/or lymphorrhagia. RESULTS: Lipiodol leak to the scrotum was observed in patients no. 2 and 3. Lymphaticopelvic fistula and genital lymphatic hyperplasia were seen in patient no. 1. Genital lymphedema diminished within 1 week and almost disappeared in two cases (patients no. 1 and 3) or significantly improved (patient no. 2). lymphorrhagia also resolved in patient no. 1. No recurrence or worsening was detected during follow-up. CONCLUSION: Therapeutic lymphangiography by lymph node injection seems to be effective to treat genital lymphedema. Lymph node puncture lymphangiography is feasible and less cumbersome than pedal lymphangiography.

Issues concerning the informality and outdoor sex work performed by travestis in São Paulo, Brazil.

The objective of this article was to discuss a series of issues pertaining to outdoor sex work practiced by low-income travestis in São Paulo, Brazil. Qualitative methods conducted among this segment of the population revealed sex work as almost inseparable from the existence of travestis as a social group. Among them, the outdoor modality was the most prominent and social stigma was a predisposing factor for their entrance (and permanence) in sex work. The results showed that some of the difficulties they faced regarding work must be understood as a consequence of them being self-employed, informal workers occupying public spaces, much like street vendors. The points they shared in common with Brazilian street vendors included the struggle for street space, their rejection by local residents and shopkeepers, police persecution, and higher credit and rental expenses. All this led to mutual exploitation within the group, difficulties in changing occupations, predatory competition for customers, and difficulties in forming professional associations.

CD8+ enriched "young" tumor infiltrating lymphocytes can mediate regression of metastatic melanoma.

PURPOSE: Tumor-infiltrating lymphocytes (TIL) and interleukin (IL)-2 administered following lymphodepletion can cause the durable complete regression of bulky metastatic melanoma in patients refractory to approved treatments. However, the generation of a unique tumor-reactive TIL culture for each patient may be prohibitively difficult. We therefore investigated the clinical and immunologic impact of unscreened, CD8+ enriched "young" TIL. EXPERIMENTAL DESIGN: Methods were developed for generating TIL that minimized the time in culture and eliminated the individualized tumor-reactivity screening step. Thirty-three patients were treated with these CD8+ enriched young TIL and IL-2 following nonmyeloablative lymphodepletion (NMA). Twenty-three additional patients were treated with CD8+ enriched young TIL and IL-2 after lymphodepletion with NMA and 6 Gy of total body irradiation. RESULTS: Young TIL cultures for therapy were successfully established from 83% of 122 consecutive melanoma patients. Nineteen of 33 patients (58%) treated with CD8+ enriched young TIL and NMA had an objective response (Response Evaluation Criteria in Solid Tumors) including 3 complete responders. Eleven of 23 patients (48%) treated with TIL and 6 Gy total body irradiation had an objective response including 2 complete responders. At 1 month after TIL infusion the absolute CD8+ cell numbers in the periphery were highly correlated with response. CONCLUSIONS: This study shows that a rapid and simplified method can be used to reliably generate CD8+ enriched young TIL for administration as an individualized therapy for advanced melanoma, and may allow this potentially effective treatment to be applied at other institutions and to reach additional patients.