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1.
Exp Clin Endocrinol Diabetes ; 128(5): 325-331, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-30278471

RESUMEN

INTRODUCTION: In Germany, inpatient rehabilitation is a well-established additive option in the therapeutic concept for children and adolescents with diabetes. However, its contribution in pediatric diabetes care is not known exactly. Our objective was to analyze inpatient rehabilitation in pediatric diabetes over eight years in Germany. METHODS: We requested secondary data from the German Statutory Pension Insurance Scheme to evaluate all completed inpatient rehabilitations for children and adolescents with diabetes (ICD-code E10-14) reimbursed by this institution between 2006 and 2013. For each type of diabetes, we analyzed the distribution of admissions by year, age-group, sex, nationality, and other documented diagnoses. All analyses were conducted via remote computing with IBM SPSS Version 24. RESULTS: Between 2006 and 2013, 5,403 admissions to inpatient rehabilitation for 4,746 children and adolescents with diabetes were documented. For type 1 diabetes (T1D; 88.5% of admissions), the number of yearly admissions increased from 458 in 2006 to 688 in 2013 (p=0.013), especially for age-group>5-10. The increase for type 2 diabetes (T2D) was not significant. Admissions were more frequent for girls (53.6%, p≤0.001), age>10-15 years (42.8%, p=0.001), and German nationality (98.5%). Obesity (T1D: 11.1%; T2D: 87.9%) and mental disorders (T1D: 11.6%; T2D: 27.4%) were the most frequent documented diagnoses in addition to diabetes. CONCLUSION: This study provides a comprehensive overview of inpatient rehabilitation for children and adolescents with diabetes over many years in Germany. Until 2013, inpatient rehabilitation remained important in pediatric diabetes care, especially for children with mental disorders or obesity.


Asunto(s)
Diabetes Mellitus Tipo 1/rehabilitación , Diabetes Mellitus Tipo 2/rehabilitación , Hospitalización/estadística & datos numéricos , Adolescente , Niño , Preescolar , Comorbilidad , Diabetes Mellitus Tipo 1/epidemiología , Diabetes Mellitus Tipo 2/epidemiología , Femenino , Alemania/epidemiología , Humanos , Pacientes Internos , Masculino , Trastornos Mentales/epidemiología , Trastornos Mentales/rehabilitación , Programas Nacionales de Salud/estadística & datos numéricos , Obesidad Infantil/epidemiología , Obesidad Infantil/rehabilitación
2.
Int J Antimicrob Agents ; 52(5): 622-628, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30063998

RESUMEN

Vector-borne diseases cause more than 1 million deaths annually. The research into new medicines is urgent, especially as there is currently no specific treatment. In this study, the authors have selected 64 endemic plants from the Mascarene Islands based on their endemism, their medicinal use and their registration in the French Pharmacopeia to evaluate the antiplasmodial, anti-chikungunya and antioxidant activities. The list of these 64 plants including their local name, population, data of collection and voucher number are available in the Supporting Information. Forty active extracts were identified from the 38 species: 22 responded positively to the antiplasmodial activity, 8 to the anti-chikungunya activity and 8 to the antioxidant activity. Six plants demonstrated high antiplasmodial activity (concentration inhibiting 50% of parasitic growth (IC50) <5 µg/mL): Casearia coriaceae, Monimia rotundifolia, Poupartia borbonica, Psiadia retusa, Vernonia fimbrillifera and Zanthoxylum heterophyllum; and five showed high anti-chikungunya activity (IC50<20 µg/mL): Aphloia theiformis, Stillingia lineata, Croton mauritianus, Indigofera ammoxylum, and Securinega durissima. Eight plants displayed an important antioxidant activity, with values of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), ferric reducing antioxidant power (FRAP) or oxygen Radical Absorbance Capacity (ORAC) >2000 µM of Trolox equivalent per mg/mL of extract: Bertiera borbonica, Erythroxylon laurifolium, Erythroxylon sideroxyloides, I. ammoxylum, P. borbonica, Scolopia heterophylla, Sophora denudata, and Terminalia bentzoe. Some data obtained tend to corroborate the reported traditional use of the plant, such as Z. heterophyllum (antiplasmodial), A. theiformis (anti-chikungunya), and E. laurifolium (antioxidant).


Asunto(s)
Antimaláricos/aislamiento & purificación , Antioxidantes/aislamiento & purificación , Antivirales/aislamiento & purificación , Extractos Vegetales/aislamiento & purificación , Plantas/química , Antimaláricos/farmacología , Antioxidantes/farmacología , Antivirales/farmacología , Benzotiazoles/metabolismo , Virus Chikungunya/efectos de los fármacos , Compuestos Férricos/metabolismo , Concentración 50 Inhibidora , Pruebas de Sensibilidad Microbiana , Oxidación-Reducción , Capacidad de Absorbancia de Radicales de Oxígeno , Pruebas de Sensibilidad Parasitaria , Extractos Vegetales/farmacología , Plasmodium/efectos de los fármacos , Reunión , Ácidos Sulfónicos/metabolismo
3.
Nat Prod Res ; 32(12): 1463-1466, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28693338

RESUMEN

Due to the in vitro antiplasmodial activity of leaf extracts from Vernonia fimbrillifera Less. (Asteraceae), a bioactivity-guided fractionation was carried out. Three sesquiterpene lactones were isolated, namely 8-(4'-hydroxymethacrylate)-dehydromelitensin (1), onopordopicrin (2) and 8α-[4'-hydroxymethacryloyloxy]-4-epi-sonchucarpolide (3). Their structures were elucidated by spectroscopic methods (1D and 2D NMR and MS analyses) and by comparison with published data. The isolated compounds exhibited antiplasmodial activity with IC50 values ≤ 5 µg/mL. Cytotoxicity of the compounds against a human cancer cell line (HeLa) and a mouse lung epithelial cell line (MLE12) was assessed to determine selectivity. Compound 3 displayed promising selective antiplasmodial activity (SI > 10).


Asunto(s)
Antimaláricos/farmacología , Lactonas/farmacología , Vernonia/química , Animales , Antimaláricos/química , Línea Celular , Citotoxinas/farmacología , Evaluación Preclínica de Medicamentos/métodos , Células HeLa , Humanos , Concentración 50 Inhibidora , Lactonas/química , Espectroscopía de Resonancia Magnética , Ratones , Estructura Molecular , Extractos Vegetales/química , Plasmodium falciparum/efectos de los fármacos , Sesquiterpenos/química , Sesquiterpenos/farmacología
4.
Angew Chem Int Ed Engl ; 56(10): 2640-2644, 2017 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-28156044

RESUMEN

Comprehensive understanding of the structure-function relationship of RNA both in real time and at atomic level will have a profound impact in advancing our understanding of RNA functions in biology. Here, we describe the first example of a multifunctional nucleoside probe, containing a conformation-sensitive fluorophore and an anomalous X-ray diffraction label (5-selenophene uracil), which enables the correlation of RNA conformation and recognition under equilibrium and in 3D. The probe incorporated into the bacterial ribosomal RNA decoding site, fluorescently reports antibiotic binding and provides diffraction information in determining the structure without distorting native RNA fold. Further, by comparing solution binding data and crystal structure, we gained insight on how the probe senses ligand-induced conformational change in RNA. Taken together, our nucleoside probe represents a new class of biophysical tool that would complement available tools for functional RNA investigations.


Asunto(s)
Colorantes Fluorescentes/química , ARN Ribosómico/química , Ribonucleósidos/química , Selenio/química , Bacterias/química , Cristalografía por Rayos X , Fluorescencia , Modelos Moleculares , Conformación Molecular
5.
Am J Physiol Heart Circ Physiol ; 285(2): H875-82, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12730050

RESUMEN

An oral glucose challenge causes transient impairment of endothelial function, probably because of increased oxidative stress. During oxidative stress, endothelial nitric oxide (NO) synthase (eNOS) becomes uncoupled because of decreased bioavailability of tetrahydrobiopterin (BH4), an essential cofactor of eNOS. Therefore, we examined whether an acute supplement of BH4 could restore endothelial dysfunction induced by an oral glucose challenge. Healthy subjects were examined in 53 experiments. Forearm blood flow was measured by venous occlusion plethysmography. Dose-response studies were obtained during intra-arterial infusion of serotonin to elicit endothelium-dependent, NO-specific vasodilation and during sodium nitroprusside (SNP) infusion to elicit endothelium-independent vasodilation. Subjects were examined before (fasting) and 1 and 2 h after an oral glucose challenge (75 g) with serotonin (n = 10) and SNP (n = 8). On different days (6R)-5,6,7,8-tetrahydro-l-biopterin dihydrochloride (6R-BH4; n = 10), the active cofactor of eNOS or its stereoisomer (6S)-5,6,7,8-tetrahydro-l-biopterin sulfate (6S-BH4; n = 10), which is inactive as a cofactor, was added 10 min (500 microg/min) before and during the 1-h postchallenge serotonin dose-response study. In vitro studies showed that 6R-BH4 and 6S-BH4 were equipotent antioxidants. Serotonin response was reduced by 24 +/- 7% (at the highest dose) at 1 h postchallenge compared with fasting (P = 0.001) and was restored 2 h postchallenge. The reduction was reversed by the administration of 6R-BH4 but not by 6S-BH4. SNP responses were slightly increased 1 and 2 h postchallenge (increased by 15 +/- 13% at third dose 2 h postchallenge, P = 0.0001). An oral glucose challenge causes transient, NO-specific, endothelial dysfunction, which may be reversed by BH4. Transient postprandial endothelial dysfunction may be partly explained by reduced bioavailability of BH4 and NO.


Asunto(s)
Antioxidantes/farmacología , Biopterinas/análogos & derivados , Biopterinas/farmacología , Endotelio Vascular/efectos de los fármacos , Glucosa/administración & dosificación , Hiperglucemia/fisiopatología , Administración Oral , Presión Sanguínea , Endotelio Vascular/fisiopatología , Inhibidores Enzimáticos/administración & dosificación , Femenino , Antebrazo/irrigación sanguínea , Depuradores de Radicales Libres/administración & dosificación , Frecuencia Cardíaca , Humanos , Masculino , Persona de Mediana Edad , Óxido Nítrico/metabolismo , Donantes de Óxido Nítrico/administración & dosificación , Nitroprusiato/administración & dosificación , Periodo Posprandial , Flujo Sanguíneo Regional/efectos de los fármacos , Serotonina/administración & dosificación , Vasodilatación/efectos de los fármacos , Vasodilatación/fisiología , omega-N-Metilarginina/administración & dosificación
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