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1.
Digit Health ; 10: 20552076241242667, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38550264

RESUMO

Introduction: Rural patients face barriers to accessing surgical care and often need to travel long distance for pre- or post-surgical consultations. Although adaptation to the COVID-19 pandemic has demonstrated the efficacy of virtual care, there is minimal data available to evaluate patient satisfaction with this modality and consequent health service utilization if virtual services are not available. Methods: An online survey was conducted with participants living in rural British Columbia, Canada who had undergone surgery within 12 months of data collection and had either virtual or face-to-face pre- or post-surgical consultations. It was supplemented by an in-person survey administered in two rural sites to all patients who had a virtual visit prior to undergoing procedural care. A ten-point scale was used to assess satisfaction. Quantitative and qualitative data were collected and analyzed. Results: Findings from the province-wide survey (n = 163) revealed no significant differences in average satisfaction ratings between people with in-person and virtual surgical consultations (8.03 versus 8.38, p = 0.26). However, most participants indicated that virtual appointments saved them time traveling, energy, and money and made them less dependent on others, accruing significant social benefit.In the community-focused sample (n = 71), 38% said they would not have had the procedure without a virtual visit option and 21% said that they would have delayed the procedure. Virtual consultations saved patients an average of 9 h (range 1-90). Participants traveled an average of 427 kilometers round trip to have the procedures. Conclusion: Findings reveal costs and time saved in accessing care due to the introduction of pre- and post-operative virtual care visits, and further investments in virtual care are warranted. This will contribute to promoting equitable access to healthcare for rural residents.

2.
Drug Metab Dispos ; 41(6): 1231-9, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23530018

RESUMO

Multidrug resistance proteins (MRPs) mediate the ATP-dependent efflux of structurally diverse compounds, including anticancer drugs and physiologic organic anions. Five classes of chalcogenopyrylium dyes (CGPs) were examined for their ability to modulate transport of [(3)H]estradiol glucuronide (E(2)17ßG; a prototypical MRP substrate) into MRP-enriched inside-out membrane vesicles. Additionally, some CGPs were tested in intact transfected cells using a calcein efflux assay. Sixteen of 34 CGPs inhibited MRP1-mediated E(2)17ßG uptake by >50% (IC50 values: 0.7-7.6 µM). Of 9 CGPs with IC50 values ≤2 µM, two belonged to class I, two to class III, and five to class V. When tested in the intact cells, only 4 of 16 CGPs (at 10 µM) inhibited MRP1-mediated calcein efflux by >50% (III-1, V-3, V-4, V-6), whereas a fifth (I-5) inhibited efflux by just 23%. These five CGPs also inhibited [(3)H]E(2)17ßG uptake by MRP4. In contrast, their effects on MRP2 varied, with two (V-4, V-6) inhibiting E(2)17ßG transport (IC(50) values: 2.0 and 9.2 µM) and two (V-3, III-1) stimulating transport (>2-fold), whereas CGP I-5 had no effect. Strikingly, although V-3 and V-4 had opposite effects on MRP2 activity, they are structurally identical except for their chalcogen atom (Se versus Te). This study is the first to identify class V CGPs, with their distinctive methine or trimethine linkage between two disubstituted pyrylium moieties, as a particularly potent class of MRP modulators, and to show that, within this core structure, differences in the electronegativity associated with a chalcogen atom can be the sole determinant of whether a compound will stimulate or inhibit MRP2.


Assuntos
Corantes/farmacologia , Proteínas Associadas à Resistência a Múltiplos Medicamentos/metabolismo , Transportadores de Ânions Orgânicos/fisiologia , Linhagem Celular Transformada , Calcogênios/química , Calcogênios/farmacologia , Corantes/química , Células HEK293 , Compostos Heterocíclicos com 3 Anéis/química , Compostos Heterocíclicos com 3 Anéis/farmacologia , Humanos , Transporte de Íons/efeitos dos fármacos , Transporte de Íons/fisiologia , Proteína 2 Associada à Farmacorresistência Múltipla
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