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Medicinas Complementares
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1.
Int J Mol Sci ; 24(7)2023 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-37047205

RESUMO

Garlic (Allium sativum) has historically been associated with antioxidant, immunomodulatory, and microbiocidal properties, mainly due to its richness in thiosulfates and sulfur-containing phytoconstituents. Sepsis patients could benefit from these properties because it involves both inflammatory and refractory processes. We evaluated the effects of thiosulfinate-enriched Allium sativum extract (TASE) on the immune response to bacterial lipopolysaccharide (LPS) by monocytes from healthy volunteers (HVs) and patients with sepsis. We also explored the TASE effects in HIF-1α, described as the key transcription factor leading to endotoxin tolerance in sepsis monocytes through IRAK-M expression. Our results showed TASE reduced the LPS-triggered reactive oxygen species (ROS) production in monocytes from both patients with sepsis and HVs. Moreover, this extract significantly reduced tumor necrosis factor (TNF)-α, interleukin-1ß, and interleukin-6 production in LPS-stimulated monocytes from HVs. However, TASE enhanced the inflammatory response in monocytes from patients with sepsis along with increased expression of human leukocyte antigen-DR. Curiously, these dual effects of TASE on immune response were also found when the HV cohort was divided into low- and high-LPS responders. Although TASE enhanced TNFα production in the LPS-low responders, it decreased the inflammatory response in the LPS-high responders. Furthermore, TASE decreased the HIF-1α pathway-associated genes IRAK-M, VEGFA and PD-L1 in sepsis cells, suggesting HIF-1α inhibition by TASE leads to higher cytokine production in these cells as a consequence of IRAK-M downregulation. The suppression of this pathway by TASE was confirmed in vitro with the prolyl hydroxylase inhibitor dimethyloxalylglycine. Our data revealed TASE's dual effect on monocyte response according to status/phenotype and suggested the HIF-1α suppression as the possible underlying mechanism.


Assuntos
Alho , Sepse , Humanos , Antioxidantes/farmacologia , Alho/metabolismo , Lipopolissacarídeos/farmacologia , Lipopolissacarídeos/metabolismo , Monócitos/metabolismo , Sepse/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
2.
Biomedicines ; 10(12)2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36551850

RESUMO

To date, there have been no new drugs or adjuvants able to decrease both morbidity and mortality in the context of sepsis and septic shock. Our objective was to evaluate the use of thiosulfinate-enriched Allium sativum and black garlic extracts as adjuvants in the management of sepsis. An experimental in vivo study was carried out with male Sprague-Dawley® rats. Animals were randomized in four treatment groups: antibiotic (ceftriaxone) treatment (group I), ceftriaxone plus thiosulfinate-enriched extract (TASE, group II), ceftriaxone plus thiosulfinate-enriched extract and black garlic extracts (TASE + BGE, group III), and ceftriaxone plus black garlic extract (BGE, group IV). All animals were housed and inoculated with 1 × 1010 CFU/15 mL of intraperitoneal Escherichia coli ATCC 25922. Subsequently, they received a daily treatment according to each group for 7 days. Clinical, analytical, microbiological, and histopathological parameters were evaluated. Statistically significant clinical improvement was observed in rats receiving garlic extracts in weight (groups II and III), ocular secretions, and piloerection (group IV). Moreover, less liver edema, vacuolization, and inflammation were observed in groups receiving adjuvant support (groups II, III, and IV). When comparing interleukins 24 h after bacteria inoculum, we found statistically significant differences in TNF-alpha levels in groups receiving BGE (groups III and IV, p ≤ 0.05). Blood and peritoneal liquid cultures were also analyzed, and we detected a certain level of Enterococcus faecalis in peritoneal cultures from all treatment groups and less bacteria presence in blood cultures in rats receiving garlic extracts (groups II, III, and IV). In conclusion, TASE and BGE could be promising nutraceutical or medicinal agents as coadjuvants in the treatment of sepsis because of its effects in modulating the inflammatory response.

3.
Prensa méd. argent ; Prensa méd. argent;108(2): 94-100, 20220000. fig, tab
Artigo em Espanhol | LILACS | ID: biblio-1368454

RESUMO

El schwannoma es una patología rara del nervio facial. Su diagnóstico preoperatorio es dificultoso dado que no tiene síntomas ni signos patognomónico de la enfermedad. La disección del nervio facial en su tronco y sus ramas con electroestimulacion es la forma de quirúrgica de sospecharlo intraoperatoriamente. La descompresión parcial o exeresis completa deberá ser considerado de acuerdo a la experiencia del equipo quirúrgico en reconstrucción nerviosa. La reparación del nervio facial como primera opción debe el injerto inmediato o sutura termino terminal. La neurotización es un procedimiento quirúrgico que le provoca al paciente simetría facial con manejo de oclusión ocular y manejo de comisura bucal, debe ser realizado antes del año de la injuria nerviosa. La rehabilitación del nervio facial necesita de un equipo multidisciplinario y la colaboración permanente del paciente para conseguir los objetivos propuestos.


Schwannoma is a rare pathology of the facial nerve. Its preoperative diagnosis is difficult since it has no symptoms or pathognomonic signs of the disease. The dissection of the facial nerve in its trunk and its branches with electrostimulation is the surgical way to suspect it intraoperatively. Partial decompression or complete exeresis should be considered according to the experience of the surgical team in nerve reconstruction. The repair of the facial nerve as a first option should be the immediate graft or end-to-end suture. Neurotization is a surgical procedure that causes the patient facial symmetry with management of ocular occlusion and management of the corner of the mouth, it must be performed within a year of the nerve injury. The rehabilitation of the facial nerve requires a multidisciplinary team and the permanent collaboration of the patient to achieve the proposed objectives.


Assuntos
Humanos , Feminino , Adulto , Anastomose Cirúrgica/métodos , Transferência de Nervo/reabilitação , Doenças do Nervo Hipoglosso/cirurgia , Doenças do Nervo Facial/patologia , Período Pré-Operatório , Neurilemoma/patologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-35010811

RESUMO

In the United States, amid the opioid overdose epidemic, nonaddicting/nonpharmacological proven strategies are available to treat pain and manage chronic pain effectively without opioids. Evidence supporting the long-term use of opioids for pain is lacking, as is the will to alter the drug-embracing culture in American chronic pain management. Some pain clinicians seem to prefer classical analgesic agents that promote unwanted tolerance to analgesics and subsequent biological induction of the "addictive brain". Reward genes play a vital part in modulation of nociception and adaptations in the dopaminergic circuitry. They may affect various sensory and affective components of the chronic pain syndromes. The Genetic Addiction Risk Severity (GARS) test coupled with the H-Wave at entry in pain clinics could attenuate pain and help prevent addiction. The GARS test results identify high-risk for both drug and alcohol, and H-Wave can be initiated to treat pain instead of opioids. The utilization of H-Wave to aid in pain reduction and mitigation of hedonic addictive behaviors is recommended, notwithstanding required randomized control studies. This frontline approach would reduce the possibility of long-term neurobiological deficits and fatalities associated with potent opioid analgesics.


Assuntos
Comportamento Aditivo , Dor Crônica , Analgésicos Opioides/uso terapêutico , Comportamento Aditivo/tratamento farmacológico , Dor Crônica/tratamento farmacológico , Humanos , Epidemia de Opioides , Recompensa
5.
Rev. Univ. Ind. Santander, Salud ; 54(1): e331, Enero 2, 2022. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1407030

RESUMO

Resumen Introducción: A más de un año del inicio de la pandemia COVID-19, el número de contagiados y muertes aún presenta frecuencias que escapan al control de manejo hospitalario. Aunado al temor, se acrecentó la aparición de mitos, creencias, automedicación e inadecuada percepción de riesgo en la población. Objetivo: Identificar la percepción de riesgo, automedicación, mitos y creencias de prevención respecto al COVID-19 en adultos jefes de hogar del distrito Gregorio Albarracín de Tacna en el 2020. Material y métodos: Se aplicó una encuesta a una muestra representativa de 250 jefes de hogar, residentes en el distrito Gregorio Albarracín. Resultados: El promedio total del grupo en percepción del riesgo expresado en porcentaje fue de 60,96 % (59,81-62,11) de un total de probable esperado ideal de 100 %. La percepción de "estar en riesgo en la pandemia" es baja. Solo el 15,20 % acató el aislamiento domiciliario estricto cuando fue indicado. El 14,8 % se automedicaba y en este grupo, los productos usados fueron Ivermectina (48,6 %) y dióxido de cloro (45,9 %). Los mitos y creencias más frecuentes fueron "rociarse con alcohol o cloro mata el virus" y "los remedios caseros pueden curar o prevenir el coronavirus". Hubo diferencia según edad (p<0,05), nivel de instrucción (p<0,001). Conclusiones: La automedicación estuvo fuertemente asociada con elevada percepción de riesgo (p<0,001) y presencia de mitos y creencias (p<0,001). El nivel de instrucción estuvo altamente asociado con la presencia de mitos y creencias (p<0,001)


Abstract Introduction: More than a year after the beginning of the COVID-19 pandemic, the number of infections and deaths is still beyond the control of hospital management. In addition to fear, myths, beliefs, self-medication and inadequate risk perception in the population have increased. Objective: To identify the perception of risk, self-medication, myths and prevention beliefs regarding COVID-19 in adult heads of household in the Gregorio Albarracin district of Tacna in 2020. Method: A survey was administered to a representative sample of 250 heads of household residing in the Gregorio Albarracin district. Results: The total average of the group in risk perception expressed as a percentage was 60.96% (59.81-62.11) out of a total expected ideal of 100%. The perception of "being at risk in the pandemic" is low. Only 15.20% adhered to strict home isolation when instructed to do so. The 14.8% self-medicated and in this group, the products used were ivermectin (48.6%) and chlorine dioxide (45.9%). The most frequent myths and beliefs were "spraying with alcohol or chlorine kills the virus" "home remedies can cure or prevent coronavirus"; there were differences according to age (p<0.05) and educational level (p<0.001). Conclusions: self-medication was strongly associated with high-risk perception (p<0.001) and presence of myths and beliefs (p<0.001). Educational level was highly associated with the presence of myths and beliefs (p<0.001).


Assuntos
Humanos , Masculino , Feminino , Percepção , Coronavirus , Cultura , COVID-19 , Peru , Automedicação
6.
Acta Sci Neurol ; 4(9): 64-71, 2021 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-35098052

RESUMO

This commentary explores the neurobiology of spirituality and asks whether it is possible or desirable to apply genetic engineering to increase human spiritual and religious experience - (gene-spirituality) to deal better with the ever-increasing catastrophes that face humanity? Neurological connections between spirituality and reward genes, reward deficiencies (RDS) (hypodopaminergia), the mirror neuron system, and the default mode network are examined. Some interventions from addiction medicine that may be useful to enhance the neuro-spirituality connectome identified as a cornerstone of the Purpose and Meaning of Life as Reward (PMLR) are identified as reasonable targets for interventions to treat RDS and balance DMN activity.

7.
Nutrients ; 12(10)2020 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-33066130

RESUMO

Policies to require warnings on the front of food and drinks high in nutrients of concern (e.g., added sugar, sodium, or saturated fat) are becoming increasingly common as an obesity prevention strategy. Colombia, a country with growing prevalence of obesity, is considering implementing a similar policy. The objective of this study was to assess perceptions and reactions to different warning designs. We conducted a randomized experiment in an online panel of adults age > 18y (n = 1997). Participants were randomized to view one of four labels: a control label (barcode), an octagon warning, a circle warning, and a triangle warning. Participants viewed their randomly assigned label on a series of products and answered questions (continuous outcomes ranged from 1-4). Compared to the control, all warnings led to higher perceived message effectiveness (increase in mean from 1.79 in the control to 2.59-2.65 in the warning conditions, p < 0.001), a higher percentage of participants who correctly identified products high in nutrients of concern (from 48% in the control condition to 84-89% in the warning conditions, p < 0.001), and reduced intentions to purchases these products (decrease in mean from 2.59 to 1.99-2.01 in the warning conditions, p < 0.001). Relative to the control, warnings performed similarly across education levels, suggesting this policy would be equitable in Colombia. Looking at differences by warning type, the pattern of results suggested that the octagon warnings performed best. After viewing all label types, 49% of participants selected the octagon warning as the one that most discouraged them from consuming products high in nutrients of concern, while 21% and 27% selected the circle and triangle warning. Colombian policymakers should consider the octagon warning as part of a front-of-package labeling policy to help consumers identify and reduce consumption of foods and drinks high in nutrients of concern.


Assuntos
Comportamento do Consumidor , Gorduras na Dieta/efeitos adversos , Gorduras na Dieta/análise , Açúcares da Dieta/administração & dosagem , Açúcares da Dieta/efeitos adversos , Ácidos Graxos/administração & dosagem , Ácidos Graxos/efeitos adversos , Comportamento Alimentar/psicologia , Análise de Alimentos , Rotulagem de Alimentos/legislação & jurisprudência , Rotulagem de Alimentos/métodos , Alimentos , Legislação sobre Alimentos , Política Nutricional/legislação & jurisprudência , Obesidade/prevenção & controle , Bebidas Adoçadas com Açúcar/efeitos adversos , Bebidas Adoçadas com Açúcar/análise , Adulto , Colômbia/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Prevalência , Adulto Jovem
8.
Exp Dermatol ; 29(3): 259-264, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31997403

RESUMO

Alopecia areata (AA) is an autoimmune disease of the hair follicle. Keratinocytes of the hair follicle generate an immunosuppressive environment by the local secretion of hormones of the hypothalamic-pituitary-adrenal axis of the skin (skin HPA analog). Our objective was to measure the local production of corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), and α-melanocyte-stimulating hormone (α-MSH) in the scalp tissue of patients with AA before and after ultraviolet A1 (UVA-1) phototherapy to determine their role in the pathogenesis of AA and the effect of UVA-1 on the AA hormonal environment. This was a retrospective and descriptive study of skin samples from 22 patients with AA before and after UVA-1 treatment. We compared the changes in the local hormonal environment by measuring CRH, ACTH, type 2 melanocortin receptor (ACTH receptor) and α-MSH with immunohistochemical stains. The positivity of MSH was significantly higher (P = .037) in the post-treatment samples compared with the baseline value. ACTH was significantly higher in intensity (P = .032) in the post-treatment samples compared with the initial value. CRH was significantly higher in intensity (P = .013) in baseline samples compared with the final biopsies. The positivity of the ACTH receptor MC2R was not different between the two groups (P = .626). In AA, an interruption in the signalling of CRH could decrease the local concentration of ACTH and MSH, and consequently, the immunosuppressive effect of these hormones. This phenomenon is normalized in the skin treated with UVA-1. A defective signalling system in the cutaneous HPA axis may be involved in the pathogenesis of AA.


Assuntos
Alopecia em Áreas/radioterapia , Hormônios/metabolismo , Fototerapia/métodos , Couro Cabeludo/metabolismo , Raios Ultravioleta , alfa-MSH/metabolismo , Hormônio Adrenocorticotrópico/metabolismo , Adulto , Alopecia em Áreas/metabolismo , Biópsia , Hormônio Liberador da Corticotropina/metabolismo , Folículo Piloso/metabolismo , Humanos , Sistema Hipotálamo-Hipofisário/patologia , Imuno-Histoquímica , Pessoa de Meia-Idade , Sistema Hipófise-Suprarrenal/metabolismo , Receptor Tipo 2 de Melanocortina/metabolismo , Estudos Retrospectivos , Transdução de Sinais , Pele/metabolismo
9.
J Med Entomol ; 57(2): 369-376, 2020 02 27.
Artigo em Inglês | MEDLINE | ID: mdl-31821502

RESUMO

A study was performed to evaluate the implication of Protophormia terraenovae larvae as a surgical therapy for wounded skin. Three groups of sheep (n = 25) were considered based on larval doses. Groups 1 and 2 were artificially infested with low and high concentrations of L1 stage P. terraenovae, respectively, and group 0 served as a control. Skin biopsies were taken at 4 and 14 d postinfestation (D.P.If). A histopathological study was carried out to evaluate the lesions with a score, numbers of eosinophils and mast cells, and an immunohistochemical analysis of CD3, CD79α, and CD68 as T lymphocytes, B lymphosytes, and macrophages, respectively. The results indicated that higher larval doses led to faster regeneration by 14 D.P.If. Furthermore, the higher larval doses showed a high number of the CD68 marker and eosinophils and a low number of CD3 and CD79α markers and mast cells. In addition, the number of mast cells, T lymphocytes, and macrophage markers increased when the lesion progressed; however, a low number of immunolabeled CD79α cells and eosinophils were observed. The results indicate a possible positive effect of larvae in the healing of certain wounds.


Assuntos
Calliphoridae/fisiologia , Miíase/veterinária , Doenças dos Ovinos/patologia , Animais , Calliphoridae/crescimento & desenvolvimento , Larva/crescimento & desenvolvimento , Larva/fisiologia , Miíase/patologia , Miíase/fisiopatologia , Ovinos , Doenças dos Ovinos/fisiopatologia , Carneiro Doméstico
10.
J Ethnopharmacol ; 242: 112046, 2019 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-31279070

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: In Colombia, the only authorized treatment to cure snakebite envenomation is with the use of antivenom. The antivenom neutralizes the systemic effects properly, but is not very effective at neutralizing local effects, thus several cases have lead to complications. On the other hand, rural communities turn to the use of plants that are easily accessible and available for basic health care. One of these plants is named Piper auritum (PA), which is traditionally highlighted in some indigenous communities of Antioquia and Chocó. AIM OF THE STUDY: The main objective of this work was to characterize the venom's toxicity by determining the Minimum Edema Dose (MED), the Minimum Coagulant Dose-Plasma (MCD-P), the Minimum Hemorrhagic Dose (MHD) and to determine the neutralizing power of the Total Ethanolic Extract (TEE) from leaves of PA on the localized and systemic effects caused by the Bothrops rhombeatus venom. MATERIALS AND METHODS: To begin, the minimum dose that causes edema-forming, coagulant and hemorrhagic activities was determined. The protocols investigated include coagulant and edematic activities caused by the venom of Bothrops rhombeatus which were neutralized by the TEE of PA. RESULTS: The MCD-P was found to be 0.206 ±â€¯0.026 µg, the MED is the same at 0.768 ±â€¯0.065 µg, and the MHD is 3.553 ±â€¯0.292 µg, which are different from the reports for Bothrops asper and Bothrops ayerbei. Next, a phytochemical screening was done to the TEE where mainly triterpenes, steroids, coumarins, saponins, and lignans were identified. Also present were 43,733 ±â€¯2106 mg AG/g ES of phenols, which are secondary metabolites that are probably responsible for the neutralization of coagulant and edematic activities at rates of 2363.870 µL and 1787.708 µL of extract/mg of venom, respectively. As a comparative parameter, the National Institute Health's (NHI) effective dose of the antivenom was used as a comparative parameter. In addition, we determined the toxicity of the TEE of PA on to Artemia salina, being moderately toxic at 6 and 24 h, while the essential oil of PA at the same observation hours is in the extremely toxic range. CONCLUSIONS: The results reflect that the extract of P. auritum has an anti-inflammatory effect similar to that of the NIH serum. It could be used as a complement of NIH antivenom, using them together so it contributes to effectively reduce inflammation and the socio-economic impact generated by the permanence of a patient victim of snakebite in health centers. CLASSIFICATIONS: Immunological products and vaccines.


Assuntos
Anti-Inflamatórios/uso terapêutico , Anticoagulantes/uso terapêutico , Antivenenos/uso terapêutico , Venenos de Crotalídeos/toxicidade , Piper , Extratos Vegetais/uso terapêutico , Animais , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Anticoagulantes/química , Anticoagulantes/farmacologia , Antivenenos/química , Antivenenos/farmacologia , Artemia/efeitos dos fármacos , Coagulação Sanguínea/efeitos dos fármacos , Bothrops , Edema/tratamento farmacológico , Etanol/química , Hemorragia/tratamento farmacológico , Camundongos Endogâmicos ICR , Compostos Fitoquímicos/análise , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/uso terapêutico , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Mordeduras de Serpentes/tratamento farmacológico , Solventes/química
11.
Plast Surg Nurs ; 39(1): 22-24, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30801495

RESUMO

This study investigated the use of endonasal infiltrative anesthesia for the management of pain associated with nasal bone fracture reduction. Fifty-two patients with nasal bone fractures were distributed in 2 groups. In the first group, topical endonasal anesthesia and external transcutaneous infiltrative anesthesia were employed. In the second group, endonasal infiltrative anesthesia was also added. Visual analog scale pain scores related to the different steps of the procedure were registered. The addition of endonasal infiltrative anesthesia was associated with a significant decrease (p < .05) in pain during reduction maneuvers (6.71 vs. 4.83) and nasal packing (5.18 vs. 3.46). Addition of endonasal infiltrative anesthesia is an effective method of pain reduction during nasal bone fracture treatment.


Assuntos
Anestesia Local/métodos , Anestésicos Locais/administração & dosagem , Osso Nasal/lesões , Dor Processual/tratamento farmacológico , Fraturas Cranianas/cirurgia , Administração Intranasal/métodos , Redução Fechada/métodos , Feminino , Humanos , Injeções , Masculino , Osso Nasal/cirurgia , Distribuição Aleatória , Fraturas Cranianas/classificação , Escala Visual Analógica
12.
Rev. peru. med. exp. salud publica ; 35(4): 581-589, oct.-dic. 2018. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-985794

RESUMO

RESUMEN Objetivo Evaluar el efecto analgésico del extracto etanólico de las hojas de Pereskia lychnidiflora, la prospección de metabolitos secundarios y el análisis toxicológico. Materiales y métodos La actividad analgésica fue evaluada mediante la prueba del ácido acético y la formalina en ratones NIH a una concentración de 30, 50 y 100 mg/kg de peso corporal, utilizando como control Ibuprofeno a 200 mg/kg y agua destilada como blanco. La prospección de metabolitos secundarios se realizó por el método de cromatografía de capa fina y la toxicidad del extracto fue evaluada in vivo según la dosis máxima de 2000 mg/kg de peso corporal. Resultados La prospección fitoquímica determinó la presencia de alcaloides, taninos, triterpenos y esteroles como mayores constituyentes químicos. Se determinó que el extracto etanólico de Pereskia lychnidiflora posee una actividad analgésica similar al Ibuprofeno. No se observaron signos de toxicidad en los ratones de experimentación y se clasifica el extracto como no tóxico con una DL50 mayor de 2000 mg/kg. Conclusión El extracto etanólico de Pereskia lychnidiflora tiene un efecto analgésico antiinflamatorio que podría estar condicionado por la presencia de alcaloides, taninos y esteroles (terpenoides) presentes en esta especie vegetal y puede ser clasificado como no tóxico.


ABSTRACT Objective To evaluate the analgesic effect of the ethanolic extract of the leaves of Pereskia lychnidiflora, the prospection of secondary metabolites and the toxicologic analysis. Materials and Methods Analgesic activity was evaluated by testing acetic acid and formalin in NIH mice at a concentration of 30, 50 and 100 mg/kg body weight, using Ibuprofen control at 200 mg/kg and distilled water as the target. Secondary metabolites were prospected using the thin layer chromatography method and the toxicity of the extract was evaluated in vivo according to the maximum dose of 2,000 mg/kg body weight. Results Phytochemical prospecting determined the presence of alkaloids, tannins, triterpenes, and sterols as major chemical constituents. The ethanolic extract of Pereskia lychnidiflora was found to have an analgesic activity similar to ibuprofen. No signs of toxicity were observed in the experimental mice and the extract is classified as non-toxic with a DL50 greater than 2,000 mg/kg. Conclusions The ethanolic extract of Pereskia lychnidiflora has an anti- inflammatory analgesic effect that could be conditioned by the presence of alkaloids, tannins, and sterols (terpenoids) present in this species and can be classified as non-toxic.


Assuntos
Animais , Masculino , Camundongos , Extratos Vegetais/toxicidade , Extratos Vegetais/uso terapêutico , Folhas de Planta/química , Cactaceae , Analgesia , Analgésicos/toxicidade , Analgésicos/uso terapêutico , Fitoterapia , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Etanol , Compostos Fitoquímicos/análise , Analgésicos/farmacologia , Analgésicos/química
13.
Rev Peru Med Exp Salud Publica ; 35(4): 581-589, 2018.
Artigo em Espanhol | MEDLINE | ID: mdl-30726415

RESUMO

OBJECTIVE: To evaluate the analgesic effect of the ethanolic extract of the leaves of Pereskia lychnidiflora, the prospection of secondary metabolites and the toxicologic analysis. MATERIALS AND METHODS: Analgesic activity was evaluated by testing acetic acid and formalin in NIH mice at a concentration of 30, 50 and 100 mg/kg body weight, using Ibuprofen control at 200 mg/kg and distilled water as the target. Secondary metabolites were prospected using the thin layer chromatography method and the toxicity of the extract was evaluated in vivo according to the maximum dose of 2,000 mg/kg body weight. RESULTS: Phytochemical prospecting determined the presence of alkaloids, tannins, triterpenes, and sterols as major chemical constituents. The ethanolic extract of Pereskia lychnidiflora was found to have an analgesic activity similar to ibuprofen. No signs of toxicity were observed in the experimental mice and the extract is classified as non-toxic with a DL50 greater than 2,000 mg/kg. CONCLUSIONS: The ethanolic extract of Pereskia lychnidiflora has an anti- inflammatory analgesic effect that could be conditioned by the presence of alkaloids, tannins, and sterols (terpenoids) present in this species and can be classified as non-toxic.


OBJETIVO: Evaluar el efecto analgésico del extracto etanólico de las hojas de Pereskia lychnidiflora, la prospección de metabolitos secundarios y el análisis toxicológico. MATERIALES Y MÉTODOS: La actividad analgésica fue evaluada mediante la prueba del ácido acético y la formalina en ratones NIH a una concentración de 30, 50 y 100 mg/kg de peso corporal, utilizando como control Ibuprofeno a 200 mg/kg y agua destilada como blanco. La prospección de metabolitos secundarios se realizó por el método de cromatografía de capa fina y la toxicidad del extracto fue evaluada in vivo según la dosis máxima de 2000 mg/kg de peso corporal. RESULTADOS: La prospección fitoquímica determinó la presencia de alcaloides, taninos, triterpenos y esteroles como mayores constituyentes químicos. Se determinó que el extracto etanólico de Pereskia lychnidiflora posee una actividad analgésica similar al Ibuprofeno. No se observaron signos de toxicidad en los ratones de experimentación y se clasifica el extracto como no tóxico con una DL50 mayor de 2000 mg/kg. CONCLUSIÓN: El extracto etanólico de Pereskia lychnidiflora tiene un efecto analgésico antiinflamatorio que podría estar condicionado por la presencia de alcaloides, taninos y esteroles (terpenoides) presentes en esta especie vegetal y puede ser clasificado como no tóxico.


Assuntos
Analgesia , Analgésicos/toxicidade , Analgésicos/uso terapêutico , Cactaceae , Fitoterapia , Extratos Vegetais/toxicidade , Extratos Vegetais/uso terapêutico , Folhas de Planta/química , Analgésicos/química , Analgésicos/farmacologia , Animais , Etanol , Masculino , Camundongos , Compostos Fitoquímicos/análise , Extratos Vegetais/química , Extratos Vegetais/farmacologia
14.
IEEE Trans Biomed Eng ; 65(3): 565-574, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28534754

RESUMO

OBJECTIVE: An internally combined volume surface integral equation (ICVSIE) for analyzing electromagnetic (EM) interactions with biological tissue and wide ranging diagnostic, therapeutic, and research applications, is proposed. METHOD: The ICVSIE is a system of integral equations in terms of volume and surface equivalent currents in biological tissue subject to fields produced by externally or internally positioned devices. The system is created by using equivalence principles and solved numerically; the resulting current values are used to evaluate scattered and total electric fields, specific absorption rates, and related quantities. RESULTS: The validity, applicability, and efficiency of the ICVSIE are demonstrated by EM analysis of transcranial magnetic stimulation, magnetic resonance imaging, and neuromuscular electrical stimulation. CONCLUSION: Unlike previous integral equations, the ICVSIE is stable regardless of the electric permittivities of the tissue or frequency of operation, providing an application-agnostic computational framework for EM-biomedical analysis. SIGNIFICANCE: Use of the general purpose and robust ICVSIE permits streamlining the development, deployment, and safety analysis of EM-biomedical technologies.


Assuntos
Simulação por Computador , Campos Eletromagnéticos , Imageamento por Ressonância Magnética/métodos , Estimulação Magnética Transcraniana/métodos , Encéfalo/diagnóstico por imagem , Cabeça/diagnóstico por imagem , Humanos , Processamento de Imagem Assistida por Computador , Reprodutibilidade dos Testes
15.
Entramado ; 13(2): 230-247, jul.-dic. 2017. graf
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1090151

RESUMO

Resumen La existencia de un Plan Decenal de Salud Pública para Colombia y la definición de una Política de Atención Integral en Salud concretaron un nuevo Modelo de Atención basado en la Atención Primaria de la Salud. Esto ubicó a la Salud Familiar y Comunitaria como núcleo fundamental y definió un rol al Médico y al Profesional Familiar y Comunitario, que dimensiona los procesos transdisciplinarios y la articulación de acciones individuales y colectivas, con esquemas pedagógicos holísticos transformadores. Este planteamiento generó un análisis y reflexión de la opinión de una muestra del 14,6% de los clasificados como Salubristas por el Observatorio Laboral del Ministerio de Educación quienes, con la respuesta a 13 preguntas enviadas por vía electrónica, libremente plantearon su percepción, conceptualización y experiencia práctica de los enfoques de Salud Familiar y Comunitaria. Con esta medición se definieron los contenidos básicos que se presentan en este documento con un nuevo enfoque transversal en el Pregrado y los Posgrados, de acuerdo con una propuesta pedagógica transformadora y con visión práctica, encontrándose aquí como destacable, la importante relación entre la educación y la salud integral; el concepto que en el 80% de las observaciones se expresó al denominar el poco compromiso de la comunidad y los profesionales de la salud con una "Cultura de la Salud Integralmente Concebida".


Abstract The existence of a Decennial Public Health Plan for Colombia and the definition of a Comprehensive Health Care Policy concretized a new Model of Care based on Primary Health Care. This placed Family and Community Health as a fundamental nucleus and defined a role for the Family and Community Physician and Practitioner, who dimension the transdisciplinary processes and the articulation of individual and collective actions, with transformational holistic pedagogical schemes. This approach generated an analysis and reflection of the opinion of a sample of 14.6% of those classified as Salubristas by the Labor Observatory of the Ministry of Education who, with the answer to 13 questions sent electronically, freely raised their perception, conceptualization and practical experience of Family and Community Health approaches. With this measurement the basic contents that are presented in this document with a new transversal approach in the Undergraduate and Postgraduates were defined, according to a pedagogical proposal transforming and with practical vision, being here like remarkable, the important relation between the education and integral health; the concept that in 80% of the observations was expressed when denominating the little commitment of the community and the professionals of the health with an "Culture of the Health Integrally Conceived".


Resumo A existência de um Plano de Saúde Pública de dez anos para a Colômbia ea definição de uma Política Integral de Saúde resultou em um novo Modelo de Cuidados Baseado em Atenção Primária à Saúde. Isso colocou a Familia e a Saúde Comunitária como um núcleo fundamental e definiu um papel para o Médico e o Profissional Familiar e Comunitário, que dimensiona os processos transdisciplinares e a articulação de ações individuais e coletivas, com esquemas pedagógicos transformadores holísticos. Esta abordagem gerou uma análise e reflexão da opinião de uma amostra de 14,6% das classificadas como Salubristas pelo Observatório do Trabalho do Ministério da Educação que, com a resposta a 13 questões enviadas eletronicamente, aumentou livremente sua percepção, conceituação e experiência prática de abordagens de saúde familiar e comunitária. Com esta medida, os conteúdos básicos apresentados neste documento foram definidos com um novo foco transversal em Estudos de Graduação e Pós-Graduação, de acordo com uma proposta pedagógica transformadora e com uma visão prática, sendo aqui a relação notável entre educação e saúde abrangente; o conceito de que em 80% das observações foi expressado chamando o pequeno compromisso da comunidade e os profissionais de saúde com uma "Cultura de Saúde Integralmente Concebida".

16.
Chronobiol Int ; 34(7): 956-966, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28617052

RESUMO

This article compared the effects of spontaneous obesity on the daily profile in the relative amount of the leptin receptor (LepRb), and its output. That is the precursor Pro-opiomelanocortin (POMC) over a 24-hour period and compared with differences in locomotion and food intake in periods of artificial light. Differences between lean and obese mice were examined, as were sex differences. Body weight, food intake and locomotor activity were monitored in freely moving lean and obese mice. Hypothalamic tissue was collected at 5 h, 10 h, 15 h, 19 h and 24 h. Samples were analyzed by western blotting to determine the relative presence of protein for LepRb, STAT3 phosphorylation (by pSTAT3/STAT3 ratio) and POMC. Obese mice were 60% less active in locomotion than lean mice during the night. While both locomotor activity and food intake were noticeably greater during the day in obese mice than in lean mice, the hypothalamus in obese mice showed a lower relative abundance of POMC and reduced pSTAT3/STAT3 ratio and leptin receptors. Behavioral and biochemical differences were more evident in obese females than in obese males. These results indicate that obesity in N. alstoni affects hypothalamic leptin signaling according to sex.


Assuntos
Composição Corporal , Ritmo Circadiano , Hipotálamo/metabolismo , Leptina/metabolismo , Obesidade/metabolismo , Transdução de Sinais , Adiposidade , Animais , Arvicolinae , Modelos Animais de Doenças , Ingestão de Alimentos , Feminino , Hipotálamo/fisiopatologia , Luz , Locomoção , Masculino , Camundongos , Obesidade/fisiopatologia , Fosforilação , Fotoperíodo , Pró-Opiomelanocortina/metabolismo , Receptores para Leptina/metabolismo , Fator de Transcrição STAT3/metabolismo , Fatores Sexuais , Fatores de Tempo
17.
Rev Med Inst Mex Seguro Soc ; 55 Suppl 1: S102-S106, 2017.
Artigo em Espanhol | MEDLINE | ID: mdl-28212482

RESUMO

BACKGROUND: Stress urinary incontinence (SUI) is defined as the involuntary leakage of urine while making an effort, such as coughing, sneezing or during activity. Since SUI generates high costs and affects the quality of life, it is important to make a proper diagnosis and, consequently, manage SUI efficiently. The objective was to know whether it is appropriate to use polypropylene mesh for SUI. METHODS: A historical cohort was conducted by reviewing records of patients with SUI treated with polypropylene mesh during 2013 with a follow-up of 12 months. RESULTS: Urinary continence was achieved in 98% of patients at one year. The complication rate was 2%. Only 12% of patients had normal weight. The most commonly used surgery was the placement of tension-free transobturator tape. CONCLUSION: The healing average reported worldwide is 90%, while the average for complications is 10%. In this study we achieved similar results. Using polypropylene mesh for surgical correction of SUI is a safe and effective alternative; however, studies with larger populations and more extensive monitoring to clarify this situation are required.


Introducción: la incontinencia urinaria de esfuerzo (IUE) se define como la pérdida involuntaria de orina con esfuerzos como toser, estornudar o realizar actividad física. Dado que la IUE genera costos elevados y afecta la calidad de vida, es importante el diagnóstico y el manejo adecuados. El objetivo fue conocer si es adecuado el uso de malla de polipropileno para la IUE. Métodos: se hizo un estudio de cohorte histórica que incluyó a pacientes con incontinencia urinaria de esfuerzo en los que se utilizó malla de polipropileno durante 2013 con un seguimiento a 12 meses. Resultados: se logró una corrección de la IUE en el 98% de las pacientes al año de seguimiento. La tasa de complicaciones fue del 2%. Solo el 12% de las pacientes tenía un peso normal. La cirugía más utilizada fue la colocación de cinta libre de tensión transobturadora. Conclusión: la curación que se reporta a nivel mundial en promedio es del 90%, mientras que para las complicaciones el promedio es del 10%. En este estudio tenemos resultados similares. Utilizar malla de polipropileno para la corrección quirúrgica de la IUE es una alternativa segura y eficaz; sin embargo, se requieren estudios con mayores poblaciones y un seguimiento más extenso para aclarar esta situación.


Assuntos
Polipropilenos , Telas Cirúrgicas , Incontinência Urinária por Estresse/cirurgia , Procedimentos Cirúrgicos Urológicos/instrumentação , Feminino , Seguimentos , Humanos , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos/métodos
18.
J Phys Act Health ; 13(11 Suppl 2): S129-S136, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27848732

RESUMO

BACKGROUND: Physical activity (PA) is vital to the holistic development of young people. Regular participation in PA is associated with substantial benefits for health, cognitive function, and social inclusion. Recognizing the potential of PA in the context of the current peace process in Colombia, the purpose of this article is to present the methodology and results of Colombia's second Report Card on PA for children and youth. METHODS: A group of experts on PA graded 14 PA indicators based on data from national surveys and policy documents. RESULTS: National and departmental policy indicators received a grade of B, while organized sport participation, overweight, obesity, community influence, and nongovernment initiatives indicators received a grade of C. Overall PA levels, active transportation, sedentary behaviors, and school influence received a grade of D. Active play, low physical fitness, and family influence received an Incomplete grade. CONCLUSIONS: PA levels are low and sedentary behaviors are high in Colombian children and youth, with notable geographic differences. A broad policy framework translated into specific actions could provide unique opportunities to bridge the gap between knowledge and practice, and contribute to social integration goals in a postconflict setting.


Assuntos
Exercício Físico , Promoção da Saúde/organização & administração , Atividade Motora , Avaliação de Programas e Projetos de Saúde/métodos , Adolescente , Criança , Colômbia , Defesa do Consumidor , Planejamento Ambiental , Feminino , Comportamentos Relacionados com a Saúde , Política de Saúde , Inquéritos Epidemiológicos/métodos , Humanos , Masculino , Obesidade , Sobrepeso , Aptidão Física , Jogos e Brinquedos , Características de Residência , Instituições Acadêmicas , Comportamento Sedentário , Condições Sociais , Esportes
19.
Cad Saude Publica ; 31 Suppl 1: 257-66, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26648379

RESUMO

The Ciclovia program (CP) has emerged as an effective initiative to promote active living in urban spaces in Latin America. This study assessed the association between social conditions, the urban environment and participation in the CP among adults living in the city of Cali, Colombia. A cross-sectional study was conducted in 2011 and 2012 among 719 adults aged 18 to 44. Urban environment measures were obtained using Geographic Information Systems. A multilevel logistic regression was used for the analysis. Slightly more than 7% of participants had participated in the CP in the previous four weekends. Being male and having a high school degree were positively associated with participation in the CP. Participation in the CP was positively associated with living in neighborhoods with Ciclovia lanes. In contrast, a negative association was found among those living in neighborhoods with a presence of traffic fatalities. This study provides new insights about a recreational program that has potential health benefits in a region marked by urban inequalities in terms of opportunities for physical activity.


Assuntos
Ciclismo/estatística & dados numéricos , Promoção da Saúde/métodos , Adolescente , Adulto , Colômbia , Estudos Transversais , Exercício Físico , Feminino , Humanos , Masculino , Atividade Motora , Programas Nacionais de Saúde , Características de Residência , Fatores Sexuais , Fatores Socioeconômicos , Saúde da População Urbana , População Urbana , Adulto Jovem
20.
Philos Trans A Math Phys Eng Sci ; 373(2056)2015 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-26527815

RESUMO

We propose a new method for polarimetric synthetic aperture radar (PolSAR) imagery classification based on stochastic distances in the space of random matrices obeying complex Wishart distributions. Given a collection of prototypes [Formula: see text] and a stochastic distance d(.,.), we classify any random matrix X using two criteria in an iterative set-up. First, we associate X with the class which minimizes the weighted stochastic distance w(m)d(X,Z(m)), where the positive weights w(m) are computed to max- imize the class discrimination power. Second, we improve the result by embedding the classification problem into a diffusion-reaction partial differential system where the diffusion term smooths the patches within the image, and the reaction term tends to move the pixel values towards the closest class prototype. In particular, the method inherits the benefits of speckle reduction by diffusion-like methods. Results on synthetic and real PolSAR data show the performance of the method.

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