RESUMEN
The aim of this study was to investigate the cytotoxic activity of the Coriandrum sativum (C. sativum) ethanolic extract (CSEE) in neuroblastoma cells, chemically characterize the compounds present in the CSEE, and predict the molecular interactions and properties of ADME. Thus, after obtaining the CSEE and performing its chemical characterization through dereplication methods using UPLC/DAD-ESI/HRMS/MS, PM6 methods and the SwissADME drug design platform were used in order to predict molecular interactions and ADME properties. The CSEE was tested for 24 h in neuroblastoma cells to the establishment of the IC50 dose. Then, the cell death was evaluated, using annexin-PI, as well as the activity of the effector caspase 3, and the protein and mRNA levels of Bax and Bcl-2 were analyzed by ELISA and RT-PCR, respectively. By UHPLC/DAD/HRMS-MS/MS analysis, the CSEE showed a high content of isocoumarins-dihydrocoriandrin, coriandrin, and coriandrones A and B, as well as nitrogenated compounds (adenine, adenosine, and tryptophan). Flavonoids (apigenin, hyperoside, and rutin), phospholipids (PAF C-16 and LysoPC (16:0)), and acylglicerol were also identified in lower amount as important compounds with antioxidant activity. The in silico approach results showed that the compounds 1 to 6, which are found mostly in the C. sativum extract, obey the "Five Rules" of Lipinski, suggesting a good pharmacokinetic activity of these compounds when administered orally. The IC50 dose of CSEE (20 µg/mL) inhibited cell proliferation and promoted cell death by the accumulation of cleaved caspase-3 and the externalization of phosphatidylserine. Furthermore, CSEE decreased Bcl-2 and increased Bax, both protein and mRNA levels, suggesting an apoptotic mechanism. CSEE presents cytotoxic effects, promoting cell death. In addition to the promising results predicted through the in silico approach for all compounds, the compound 6 showed the best results in relation to stability due to its GAP value.
Asunto(s)
Coriandrum , Neuroblastoma , Línea Celular Tumoral , Coriandrum/química , Humanos , Neuroblastoma/tratamiento farmacológico , Extractos Vegetales/química , Proteínas Proto-Oncogénicas c-bcl-2 , ARN Mensajero , Espectrometría de Masas en Tándem , Proteína X Asociada a bcl-2/genéticaRESUMEN
BACKGROUND: The changes in the pattern of lymphatic drainage of the superficial abdominal wall after abdominoplasty are still unknown. These changes may increase the risk of numerous complications, including seroma formation. Depending on the alterations, the manual lymphatic drainage technique should be modified in postoperative patients. The aim of this study was to map the pattern of lymphatic drainage of the superficial infraumbilical abdominal wall after abdominoplasty. METHODS: Twenty women with indications for abdominoplasty were selected in the Plastic Surgery Division of the Federal University of São Paulo. Intradermal lymphoscintigraphy with dextran 500-99m-technetium was performed in 20 female patients in the preoperative phase and 1 and 6 months after abdominoplasty to evaluate superficial lymphatic drainage of the abdominal wall. RESULTS: Before surgery, all patients presented with abdominal lymphatic drainage toward the inguinal lymph nodes. One and 6 months after abdominoplasty, only 15 percent exhibited the same drainage pathway. Drainage toward the axillary lymph node chain occurred in 65 percent of the patients, 10 percent displayed a drainage pathway toward both the axillary and inguinal lymph nodes, and lymphatic drainage was indeterminate in 10 percent of the cases. CONCLUSIONS: A significant change in lymphatic drainage pathway occurred in the infraumbilical region after abdominoplasty. The axillary drainage path was predominant after the operation, in contrast to the inguinal path observed in the preoperative period. However, 35 percent of cases exhibited alternative drainage. No significant changes were documented between 1 and 6 months postoperatively. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.
Asunto(s)
Pared Abdominal , Abdominoplastia , Pared Abdominal/cirugía , Abdominoplastia/efectos adversos , Abdominoplastia/métodos , Axila/cirugía , Femenino , Humanos , Ganglios Linfáticos/cirugía , LinfocintigrafiaRESUMEN
Human mesenchymal stem cells derived from adipose tissue have become increasingly attractive as they show appropriate features and are an accessible source for regenerative clinical applications. Different protocols have been used to obtain adipose-derived stem cells. This article describes different steps of an improved time-saving protocol to obtain a more significant amount of ADSC, showing how to cryopreserve and thaw ADSC to obtain viable cells for culture expansion. One hundred milliliters of lipoaspirate were collected, using a 26 cm three-hole and 3 mm caliber syringe liposuction, from the abdominal area of nine patients who subsequently underwent elective abdominoplasty. The stem cells isolation was carried out with a series of washes with Dulbecco's Phosphate Buffered Saline (DPBS) solution supplemented with calcium and the use of collagenase. Stromal Vascular Fraction (SVF) cells were cryopreserved, and their viability was checked by immunophenotyping. The SVF cellular yield was 15.7 x 105 cells/mL, ranging between 6.1-26.2 cells/mL. Adherent SVF cells reached confluence after an average of 7.5 (±4.5) days, with an average cellular yield of 12.3 (± 5.7) x 105 cells/mL. The viability of thawed SVF after 8 months, 1 year, and 2 years ranged between 23.06%-72.34% with an average of 47.7% (±24.64) with the lowest viability correlating with cases of two-year freezing. The use of DPBS solution supplemented with calcium and bag resting times for fat precipitation with a shorter time of collagenase digestion resulted in an increased stem cell final cellular yield. The detailed procedure for obtaining high yields of viable stem cells was more efficient regarding time and cellular yield than the techniques from previous studies. Even after a long period of cryopreservation, viable ADSC cells were found in the SVF.
Asunto(s)
Células Madre Mesenquimatosas , Fracción Vascular Estromal , Tejido Adiposo , Células Cultivadas , Criopreservación/métodos , Humanos , Células del EstromaRESUMEN
OBJECTIVE: To assess the impact of Unna boot therapy on subjective wellbeing, hope and spirituality in patients with venous leg ulcers (VLU). METHOD: This was a prospective, descriptive, analytical, multicentre clinical trial conducted in a nursing care and education centre, an outpatient wound care clinic and a primary health care unit in Brazil. Adult patients with VLUs took part in the study. Patients with diabetic foot ulcers and mixed ulcers were excluded. A questionnaire assessing sociodemographic and religious characteristics of patients, the Subjective Wellbeing Scale, the Spirituality Self-Rating Scale (SSRS), and the Herth Hope Index (HHI) were administered to all patients. RESULTS: A total of 60 patients (63.3% female; 86.7% aged ≥60 years) participated. Before Unna boot therapy, 65%, 66.7% and 65% of patients reported a score of one on positive affect, negative affect and life satisfaction, respectively, indicating poor subjective wellbeing. After one month of compression therapy, 66.7%, 50.0%, and 80.0% of patients reported a score of three for each element positive affect, negative affect and life satisfaction, respectively, showing a significant improvement in subjective wellbeing (p=0.029). A significant increase in total SSRS scores (p=0.017) was found between baseline (mean: 9.77) and one month of treatment (mean: 25.47), indicating a significant increase in a sense of spirituality. There was also a significant increase in total HHI values (p=0.009) between baseline (mean: 15.68) and one month of compression therapy (mean: 39.38), suggesting a significant increase in hope among patients. CONCLUSION: Patients with VLUs treated with Unna boot therapy in this study showed significant improvement in subjective wellbeing, spirituality and hope for cure.
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Úlcera de la Pierna/terapia , Medias de Compresión , Anciano , Anciano de 80 o más Años , Brasil , Femenino , Esperanza , Humanos , Úlcera de la Pierna/psicología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Religión , Espiritualidad , Encuestas y CuestionariosRESUMEN
PURPOSE: To evaluate the effects of this thymol-rich oil in the proliferation of human adipose tissue-derived stem cells. METHODS: Stem cells were isolated from human adipose tissue by liposuction. After the first passage, cells were cultivated in triplicate for three days in control medium and medium supplemented with three oil samples (1.0 µg/mL, 5.0 µg/mL, and 25.0 µg/mL). Cells were analyzed by the MTT assay at passage 1 (P1), and cell proliferation of control and 1 µg/mL groups was determined with a hemocytometer at P2 and P3. RESULTS: Viability of the essential oil-treated cells was significantly higher than the control group at P1 (p = 0.0008). The treatment with the oil, at a concentration of 1 µg/mL, led to increases of 24.8% at P1 and 43.0% at P3 in the rate of cell proliferation compared with control cells. CONCLUSION: Supplementing culture medium with essential oil of Lippia origanoides increased cell proliferation, especially at later passages.
Asunto(s)
Antioxidantes/farmacología , Proliferación Celular/efectos de los fármacos , Lippia/química , Aceites Volátiles/farmacología , Aceites de Plantas/farmacología , Timol/farmacología , Tejido Adiposo/citología , Adulto , Medios de Cultivo , Humanos , Lipectomía , Aceites Volátiles/química , Aceites de Plantas/química , Células Madre/efectos de los fármacosRESUMEN
Abstract Purpose: To evaluate the effects of this thymol-rich oil in the proliferation of human adipose tissue-derived stem cells. Methods: Stem cells were isolated from human adipose tissue by liposuction. After the first passage, cells were cultivated in triplicate for three days in control medium and medium supplemented with three oil samples (1.0 μg/mL, 5.0 μg/mL, and 25.0 μg/mL). Cells were analyzed by the MTT assay at passage 1 (P1), and cell proliferation of control and 1 μg/mL groups was determined with a hemocytometer at P2 and P3. Results: Viability of the essential oil-treated cells was significantly higher than the control group at P1 (p = 0.0008). The treatment with the oil, at a concentration of 1 µg/mL, led to increases of 24.8% at P1 and 43.0% at P3 in the rate of cell proliferation compared with control cells. Conclusion: Supplementing culture medium with essential oil of Lippia origanoides increased cell proliferation, especially at later passages.
Asunto(s)
Humanos , Adulto , Timol/farmacología , Aceites de Plantas/farmacología , Aceites Volátiles/farmacología , Lippia/química , Proliferación Celular/efectos de los fármacos , Antioxidantes/farmacología , Células Madre/efectos de los fármacos , Aceites de Plantas/química , Aceites Volátiles/química , Lipectomía , Tejido Adiposo/citología , Medios de CultivoRESUMEN
BACKGROUND: After abdominoplasty, patients experience decreased ventilatory function and increased intra-abdominal pressure (IAP). Breathing exercises are used during the pre- and postoperative periods of several abdominal surgeries to prevent or minimize postoperative complications. OBJECTIVES: The aim of this study was to assess the effect of preoperative respiratory physiotherapy on the outcome of abdominoplasty patients. METHODS: Thirty-three patients were divided into 2 groups. The control group (n = 18) received no preoperative intervention. The intervention group (n = 15) performed breathing exercises during the preoperative period, including incentive spirometry, diaphragmatic breathing, shortened expiration, and sustained maximal inspiration. Respiratory physiotherapy started one week before surgery. Breathing exercises were performed daily. They were performed 3 times weekly in the presence of a physiotherapist and patients were instructed to carry on the exercises at home on days without physiotherapy sessions for three sets of 20 repetitions each. Patients were assessed by spirometry and IAP measurements. RESULTS: No significant difference in spirometry was found between groups. However, patients in the intervention group had lower IAP at the start of surgery and at all time points (P = 0.010) compared with controls. CONCLUSIONS: Preoperative respiratory physiotherapy had no impact on spirometry, but may have contributed to reduce IAP intraoperatively.
Asunto(s)
Abdominoplastia/efectos adversos , Ejercicios Respiratorios/métodos , Complicaciones Posoperatorias/prevención & control , Cuidados Preoperatorios/métodos , Adulto , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Resultado del Tratamiento , Adulto JovenRESUMEN
Objetivo: desenvolver um aplicativo multimídia em plataforma móvel para tratamento de feridas utilizando fitoterápicos e plantas medicinais. Método: pesquisa de produção tecnológica contendo o desenvolvimento de aplicativo para tecnologia móvel. Resultados: o aplicativo foi construído após revisão da literatura em LILACS, MEDLINE, INI, CINAHL, Cochrane, SciELO, manuais e dissertações. O mesmo estará disponível online após autorização do registro no Instituto Nacional da Propriedade Industrial (protocolo númeroBR:5120160007117). Conclusão: este estudo possibilitou descrever as etapas do planejamento e desenvolvimento do aplicativo multimídia em plataforma móvel para tratamento de ferida utilizando fitoterápicos e plantas medicinais. As etapas percorridas abrem perspectivas para acreditar que o uso desse aplicativo é de grande eficácia na prática clínica na limpeza e no tratamento de ferida utilizando fitoterápicos e plantas medicinais e para o ensino de Enfermagem no que se refere à tecnologia. Esta pesquisa tem como perspectiva a validação deste aplicativo por enfermeiros.
Asunto(s)
Masculino , Femenino , Humanos , Aplicaciones Móviles , Cicatrización de Heridas , Desarrollo Tecnológico , Educación en Enfermería , Fitoterapia , Medicamento Fitoterápico , Multimedia , Plantas Medicinales , MEDLINERESUMEN
Objetivo: avaliar os efeitos do laser de baixa intensidade AsGa (904 nm) e da microcorrente no processo de cicatrização de feridas cutâneas em ratos. Método: quarenta e oito ratos Wistar, fêmeas, foram submetidos à cirurgia para confecção de ferida cutânea no dorso com um punch metálico de 2,13 cm2 de área. Logo após, foram divididos em quatro grupos: Grupo Laser (tratamento com laser de baixa intensidade AsGa de 904 nm a4 J/cm2), Grupo Micro (tratamento com microcorrente a 80 µA por 12 minutos), Grupo Laser+Micro(tratamento com os mesmos parâmetros dos grupos Laser e Micro) e Grupo Controle (sem tratamento), e receberam tratamento diário por 21 dias consecutivos. Resultados: os animais do Grupo Laser apresentaram melhor cicatrização da ferida (0,0056 cm2), seguidos pelos grupos Laser+Micro (0,0084 cm2), Micro (0,0109cm2) e Controle (0,0197 cm2). Conclusão: o tratamento com laser foi mais eficiente na cicatrização de feridas cutâneas em ratos.
Asunto(s)
Animales , Ratas , Cicatrización de Heridas , Estimulación Eléctrica Transcutánea del Nervio , Rayos Láser , Ratas Wistar , Terapia por Luz de Baja Intensidad , Epidemiología Descriptiva , Estudios Longitudinales , Estudios Prospectivos , Estudios de Casos y ControlesRESUMEN
Objetivo: avaliar ansiedade e depressão em indivíduos com úlcera venosa que receberam acupuntura como tratamento coadjuvante. Método: estudo quantitativo, descritivo, multicêntrico, analítico, prospectivo, comparativo e controlado em 80 pacientes com úlcera venosa, de ambos os sexos, atendidos na Unidade Básica de Saúde e Estratégia Saúde da Família (ESF). A Escala Hospitalar de Ansiedade e Depressão (HADS) foi administrada a todos os pacientes. Resultados: o escore HADS médio para ansiedade no Grupo Estudo foi de9,30 na primeira semana e 3,35 na terceira semana de tratamento; e no Grupo Controle foi de 12,78 na primeira semana e 3,0 na terceira semana. O escore HADS médio para depressão no Grupo Estudo foi de 8,25na primeira semana e 4,43 na terceira semana de tratamento; e no Grupo Controle foi de 12,70 na primeira semana e 5,0 na terceira semana de tratamento. Conclusão: os pacientes do Grupo Estudo apresentaram melhoras na ansiedade e depressão após 6 sessões de acupuntura.
Asunto(s)
Masculino , Femenino , Humanos , Ansiedad , Depresión , Calidad de Vida , Terapia por Acupuntura , Úlcera Varicosa , Epidemiología Descriptiva , Estudios Prospectivos , Estudios de Casos y ControlesRESUMEN
OBJECTIVE: To evaluate levels of spirituality and hope in patients with diabetic foot ulcers (DFUs) according to sociodemographic factors. DESIGN: This was a primary, prospective, descriptive, analytical, and clinical study. Questionnaires assessing sociodemographic and clinical characteristics of the patients, the Spirituality Self-rating Scale (SSRS), and the Herth Hope Index (HHI) were administered to all participants. SETTING: University-affiliated skilled nursing center and outpatient wound care clinic in Pouso Alegre, Brazil. PATIENTS: Fifty adult patients with DFUs participated in the study. Patients with ischemic diabetic foot and mixed ulcers were excluded from the study. MAIN RESULTS: On average, patients with DFUs had low levels of spirituality (mean SSRS score, 12.6) and low hope for cure (mean HHI, 16.5). Patients younger than 60 years reported significantly lower levels of spirituality (mean SSRS scores, 11.0), and those older than 70 years had significantly lower hope for cure (mean HHI, 12.5) than other age groups (P = .040). Level of spirituality was significantly lower among women (P = .015) and those living with an ulcer for more than 2 years, who also reported significantly lower hope for cure (P = .029) compared with patients having an ulcer for less than 2 years. CONCLUSION: On average, patients with DFUs, especially women and older adults, had a low sense of hope and spirituality. Except for gender, age, and ulcer duration, other sociodemographic and ulcer characteristics had no significant effect on the study population's spirituality and hope.
Asunto(s)
Pie Diabético/psicología , Pie Diabético/terapia , Calidad de Vida , Factores Socioeconómicos , Espiritualidad , Cicatrización de Heridas/fisiología , Adaptación Psicológica , Adulto , Factores de Edad , Brasil , Estudios de Cohortes , Femenino , Esperanza , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Encuestas y CuestionariosRESUMEN
BACKGROUND: Anaemia and iron deficiency are common complications following post-bariatric abdominoplasty. Given the low oral absorbability of iron resulting from bariatric surgery, it has been hypothesised that postoperative intravenously administered iron supplementation could be used to treat anaemia and to prevent the development of iron deficiency in these patients. METHODS/DESIGN: In this multicentre open-label randomised clinical trial, 56 adult women undergoing post-bariatric anchor-line abdominoplasty will be allocated at a ratio of 1:1 for postoperative supplementation with two intravenously administered applications of 200 mg of iron saccharate or postoperative supplementation with 100 mg of iron polymaltose complex administered orally, twice a day for 8 weeks. The primary outcome is the difference in mean haemoglobin levels between the two groups at eight postoperative weeks. Secondary outcomes evaluated at one, four and eight postoperative weeks include iron profile, reticulocyte count, overall quality of life measured using the Short-Form 36 Health Survey (SF-36) questionnaire, fatigue measured using the Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F), adverse effects and postoperative complications. DISCUSSION: This randomised clinical trial aims to evaluate the haematopoietic effectiveness of intravenously administered iron supplementation in patients undergoing post-bariatric abdominoplasty. A more effective recovery of haemoglobin levels could help improve the patients' quality of life and could provide an improved haematological status in preparation for the subsequent and frequent plastic surgeries these patients undergo. TRIAL REGISTRATION: Clinicaltrials.gov Identifier: NCT01857011 (8 May 2013), Universal Trial Number U111-1169-6223, Brazilian Clinical Trials Registry (REBEC): RBR-2JGRKQ .
Asunto(s)
Abdominoplastia/efectos adversos , Anemia/tratamiento farmacológico , Cirugía Bariátrica , Compuestos Férricos/administración & dosificación , Ácido Glucárico/administración & dosificación , Hematínicos/administración & dosificación , Hematopoyesis/efectos de los fármacos , Administración Intravenosa , Administración Oral , Adolescente , Adulto , Anemia/sangre , Anemia/diagnóstico , Biomarcadores/sangre , Brasil , Protocolos Clínicos , Esquema de Medicación , Femenino , Compuestos Férricos/efectos adversos , Sacarato de Óxido Férrico , Ácido Glucárico/efectos adversos , Hematínicos/efectos adversos , Hemoglobinas/metabolismo , Humanos , Persona de Mediana Edad , Calidad de Vida , Proyectos de Investigación , Encuestas y Cuestionarios , Factores de Tiempo , Resultado del Tratamiento , Adulto JovenRESUMEN
One of the goals in using cells for tissue engineering (TE) and cell therapy consists of optimizing the medium for cell culture. The present study compares three different blood product supplements for improved cell proliferation and protection against DNA damage in cultured human dental pulp stem cells for tooth TE applications. Human cells from dental pulp were first characterized as adult stem cells (ectomesenchymal mixed origin) by flow cytometry. Next, four different cell culture conditions were tested: I, supplement-free; II, supplemented with fetal bovine serum; III, allogeneic human serum; and IV, autologous human serum. Cultured cells were then characterized for cell proliferation, mineralized nodule formation, and colony-forming units (CFU) capability. After 28 days in culture, the comet assay was performed to assess possible damage in cellular DNA. Our results revealed that Protocol IV achieved higher cell proliferation than Protocol I (p = 0.0112). Protocols II and III resulted in higher cell proliferation than Protocol I, but no statistical differences were found relative to Protocol IV. The comet assay revealed less cell damage in cells cultured using Protocol IV as compared to Protocols II and III. The damage percentage observed on Protocol II was significantly higher than all other protocols. CFUs capability was highest using Protocol IV (p = 0.0018) and III, respectively, and the highest degree of mineralization was observed using Protocol IV as compared to Protocols II and III. Protocol IV resulted in significantly improved cell proliferation, and no cell damage was observed. These results demonstrate that human blood product supplements can be used as feasible supplements for culturing adult human dental stem cells.
Asunto(s)
Células Madre Adultas/fisiología , Sangre/metabolismo , Medios de Cultivo/química , Pulpa Dental/citología , Ingeniería de Tejidos/métodos , Diente/citología , Adolescente , Células Madre Adultas/citología , Técnicas de Cultivo Celular por Lotes , Proliferación Celular , Niño , Pulpa Dental/fisiología , Femenino , Humanos , Masculino , Técnicas de Cultivo de Órganos/métodos , Técnicas de Cultivo de Tejidos/métodos , Diente/crecimiento & desarrolloRESUMEN
PURPOSE: To extract the Melaleuca sp. oil and to assess its in vitro inhibitory effect against Staphylococcus aureus isolates obtained from lower limb wounds and resistant to several antibiotics. METHODS: A total of 14 test-tubes containing Mueller-Hinton broth were used to determine the Minimum Inhibitory Concentration (MIC). The following concentrations of the Melaleuca sp. oil were added to the first 11 tubes: 8; 4; 2; 1; 0.5; 0.2; 0.1; 0.05; 0.025; 0.0125 and 0.00625%. The 12th and 13th tubes, with and without oil, were used as the positive and negative controls, respectively. The experimental study was carried out in triplicate at 37ºC for 18 hours. The Minimum Bactericidal Concentration (MBC), able of killing all the microorganisms, was also determined. Two S. aureus isolates were obtained from lower limb wounds of female patients and the identification of the microorganisms (Staphylococcus aureus) and the test for susceptibility to the antimicrobial agents were carried out by automation using the apparatus MicroScan(r). After identification, the isolates were preserved in liquid Trypticase Soy medium, and inoculated for determination of the MIC and MBC. RESULTS: The MIC was 0.2% and the MBC was 0.4%. CONCLUSION: The Melaleuca sp. oil showed antimicrobial properties in vitro against strains isolated from lower limb wounds which were resistant to multiple antibiotics.
Asunto(s)
Antiinfecciosos Locales/farmacología , Melaleuca/química , Staphylococcus aureus/efectos de los fármacos , Aceite de Árbol de Té/farmacología , Adulto , Brasil , Femenino , Humanos , Extremidad Inferior , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Reproducibilidad de los Resultados , Heridas y Lesiones/microbiologíaRESUMEN
PURPOSE: To extract the Melaleuca sp. oil and to assess its in vitro inhibitory effect against Staphylococcus aureus isolates obtained from lower limb wounds and resistant to several antibiotics. METHODS: A total of 14 test-tubes containing Mueller-Hinton broth were used to determine the Minimum Inhibitory Concentration (MIC). The following concentrations of the Melaleuca sp. oil were added to the first 11 tubes: 8; 4; 2; 1; 0.5; 0.2; 0.1; 0.05; 0.025; 0,0125 and 0.00625%. The 12th and 13th tubes, with and without oil, were used as the positive and negative controls, respectively. The experimental study was carried out in triplicate at 37ºC for 18 hours. The Minimum Bactericidal Concentration (MBC), able of killing all the microorganisms, was also determined. Two S. aureus isolates were obtained from lower limb wounds of female patients and the identification of the microorganisms (Staphylococcus aureus) and the test for susceptibility to the antimicrobial agents were carried out by automation using the apparatus MicroScan(r). After identification, the isolates were preserved in liquid Trypticase Soy medium, and inoculated for determination of the MIC and MBC. RESULTS: The MIC was 0.2% and the MBC was 0.4%. CONCLUSION: The Melaleuca sp. oil showed antimicrobial properties in vitro against strains isolated from lower limb wounds which were resistant to multiple antibiotics.
Asunto(s)
Antiinfecciosos/farmacología , Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Melaleuca/química , Staphylococcus aureus/efectos de los fármacos , Aceite de Árbol de Té/farmacología , Adulto , Brasil , Recuento de Colonia Microbiana , Femenino , Humanos , Extremidad Inferior/lesiones , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Reproducibilidad de los Resultados , Heridas y Lesiones/microbiologíaRESUMEN
PURPOSE: To extract the Melaleuca sp. oil and to assess its in vitro inhibitory effect against Staphylococcus aureus isolates obtained from lower limb wounds and resistant to several antibiotics. METHODS: A total of 14 test-tubes containing Mueller-Hinton broth were used to determine the Minimum Inhibitory Concentration (MIC). The following concentrations of the Melaleuca sp. oil were added to the first 11 tubes: 8; 4; 2; 1; 0.5; 0.2; 0.1; 0.05; 0.025; 0,0125 and 0.00625%. The 12th and 13th tubes, with and without oil, were used as the positive and negative controls, respectively. The experimental study was carried out in triplicate at 37ºC for 18 hours. The Minimum Bactericidal Concentration (MBC), able of killing all the microorganisms, was also determined. Two S. aureus isolates were obtained from lower limb wounds of female patients and the identification of the microorganisms (Staphylococcus aureus) and the test for susceptibility to the antimicrobial agents were carried out by automation using the apparatus MicroScan(r). After identification, the isolates were preserved in liquid Trypticase Soy medium, and inoculated for determination of the MIC and MBC. RESULTS: The MIC was 0.2% and the MBC was 0.4%. CONCLUSION: The Melaleuca sp. oil showed antimicrobial properties in vitro against strains isolated from lower limb wounds which were resistant to multiple antibiotics. .
Asunto(s)
Adulto , Femenino , Humanos , Persona de Mediana Edad , Antiinfecciosos/farmacología , Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Melaleuca/química , Staphylococcus aureus/efectos de los fármacos , Aceite de Árbol de Té/farmacología , Brasil , Recuento de Colonia Microbiana , Extremidad Inferior/lesiones , Pruebas de Sensibilidad Microbiana , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Reproducibilidad de los Resultados , Heridas y Lesiones/microbiologíaRESUMEN
The skin is a dynamic and complex organ that relies on the interrelation among different cell types, macromolecules, and signaling pathways. Further, the skin has interactions with its own appendages and other organs such as the sebaceous glands and hair follicles, the kidney, and adrenal glands; systems such as the central nervous system; and axes such as the hypothalamic-pituitary-adrenal axis. These continuous connections give the skin its versatility, and when an injury is caused, some triggers start a cascade of events designed to restore its integrity. Nowadays, it is known that this psychoneuroimmune-endocrine intercommunication modulates both the homeostatic condition and the healing process. In this sense, the skin conditions before a trauma, whether of endogenous (acne) or exogenous origin (injury or surgical incision), could regulate the process of tissue repair. Most skin diseases such as psoriasis and atopic dermatitis, among others, have in their pathophysiology a psychogenic component that triggers integrated actions in the nervous, immune, and endocrine systems. However, fibroproliferative disorders of wound healing, such as hypertrophic scar and keloid, are not yet included in this listing, despite showing correlation with stress, especially with the psychosocial character. This review, by understanding the "brain-skin connection", presents evidence that allows us to understand the keloid as a psychomediated disease.
RESUMEN
BACKGROUND: Liposuction is a common cosmetic surgical procedure, which requires analgesia for postoperative pain. Transcutaneous electrical nerve stimulation (TENS) has been used for postoperative pain relief; however, there is no evidence of its effectiveness in liposuction patients and this is the focus of this paper. METHODS: A prospective, randomized, double-blind, controlled trial was conducted with 42 adult patients who underwent liposuction. Patients were randomly allocated to either the TENS group (active TENS) or control group (sham TENS). All patients received morphine (0.1 mg/kg) and dipyrone 1 g immediately after surgery; TENS was delivered 2 h later. The primary outcome was pain intensity. Secondary outcomes were analgesic requirement, number and types of adverse effects of TENS, quality of pain, treatment success, and patient satisfaction. Postoperative pain was measured using a visual analog scale (VAS) and the Brazilian version of the McGill Pain Questionnaire (Br-MPQ). RESULTS: Patients in the TENS group reported significantly lower pain intensity (P < 0.001, effect size = 0.92) compared with those in the control group. TENS significantly decreased the consumption of analgesics in the postoperative period (P < 0.001). No withdrawals or adverse effects were observed in the TENS group, but 33.3% of patients in the control group reported drowsiness and nausea. About 95 and 38% of patients in the TENS and control groups, respectively, were satisfied with the analgesic treatment. CONCLUSION: The results indicate that TENS is effective as an adjunct to analgesics for pain relief after liposuction. LEVEL OF EVIDENCE I: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Dolor Postoperatorio/prevención & control , Estimulación Eléctrica Transcutánea del Nervio , Adolescente , Adulto , Método Doble Ciego , Femenino , Humanos , Lipectomía , Dimensión del Dolor , Estudios Prospectivos , Adulto JovenRESUMEN
OBJECTIVE: The objective of the study was to evaluate the association of sociodemographic factors with hope for cure and levels of religiosity and spirituality in patients with venous leg ulcers (VLUs). DESIGN: This was a primary, prospective, descriptive, analytical, clinical, nonrandomized study. SETTING: The study was performed at a nursing care and education center of a university hospital in interior Minas Gerais, Brazil. PATIENTS: A convenience sample of 50 adult patients with VLUs and Doppler ankle-brachial index ranging from 0.8 to 1.0 participated in the study. Patients with mixed ulcers, arterial ulcers, and diabetic foot ulcers were excluded from the study. MAIN OUTCOME MEASURES: A questionnaire assessing sociodemographic and clinical characteristics of patients, the Spirituality Self-rating Scale (SSRS), and the Herth Hope Index (HHI) were administered to all patients. MAIN RESULTS: The mean SSRS score was 10.20, and the mean HHI was 25.5, corresponding to low levels of spirituality and moderate hope for cure, respectively. Patients aged between 50 and 59 years, men, nonsmokers, and those who were unemployed had the lowest mean SSRS scores. The lowest mean HHI values were reported by patients whose ulcers had exudate and odor, those aged 20 to 39 years, retired, and living with the wound for 1 year or less. Patients who had no religion or were not practicing a religion and those who considered living with an ulcer as a punishment reported low SSRS scores. CONCLUSION: The results showed that most patients with VLUs had low levels of spirituality, did not perceive divine intervention in their daily life or practice religious activities such as prayer, and had moderate hope for cure.
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Adaptación Psicológica , Esperanza , Clase Social , Espiritualidad , Úlcera Varicosa/psicología , Adulto , Anciano , Brasil , Femenino , Humanos , Pierna , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Encuestas y Cuestionarios , Úlcera Varicosa/terapia , Adulto JovenRESUMEN
OBJECTIVE: The purpose of this study was to evaluate the effects of low-level laser therapy (LLLT) on the repair of rat tibiae exposed to ionizing radiation (IR). BACKGROUND DATA: IR causes structural changes that delay bone tissue repair. Properly dosed, LLLT improves the bone repair process. METHODS: Seventy-two healthy Wistar rats were distributed into the following groups: Group I, sham control; Group II, LLLT; Group III, IR; and Group IV, IR and LLLT. Groups III and IV received a single dose (30 Gy) of gamma radiation and underwent surgery 28 days later. A noncritical sized bone defect (diameter 2.5 mm) was surgically created in all groups. Groups II and IV received three applications of postsurgical LLLT (GaAlAs, 808 nm, 100 mW, 0.028 cm(2), 3.57 W/cm(2), 20 sec, 2 J,â 71.4 J/cm(2)) on alternate days. Histomorphometry was assessed following digital image analysis. RESULTS: The samples were evaluated on days 7, 14, and 21 after surgery; the IR protocol resulted in a significant reduction (p<0.018) in bone formation in Group III compared with Group I. Significant increases (p<0.006) in newly formed bone were noted in Group IV compared with Group III. No significant differences were observed between Group I and Group IV. CONCLUSIONS: LLLT increased the newly formed bone area during the initial phase of the tibiae repair process in rats exposed to IR.