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1.
Pharmacy (Basel) ; 12(3)2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38921958

RESUMEN

BACKGROUND: The opioid crisis in the US is a severe public health issue, prompting pharmacists to adopt various strategies for prevention, harm reduction, treatment, and recovery. Despite progress, barriers persist. RESULTS: This commentary examines five determinants of public health in relation to pharmacist-led interventions for the opioid crisis: individual behavior, social factors, policymaking, health service accessibility, and biological/genetic considerations. Pharmacists can influence individual behavior through education and support, address social determinants like stigma, advocate for policy changes, ensure health service accessibility, and personalize opioid prescriptions based on biological factors. CONCLUSION: Pharmacists play a crucial role in addressing the opioid crisis by navigating these determinants. Pharmacists' engagement is essential for reducing opioid-related harms and improving public health outcomes through advocacy, service provision, and education.

2.
Drug Saf ; 46(6): 601-614, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37131012

RESUMEN

INTRODUCTION: Identifying individual characteristics or underlying conditions linked to adverse drug reactions (ADRs) can help optimise the benefit-risk ratio for individuals. A systematic evaluation of statistical methods to identify subgroups potentially at risk using spontaneous ADR report datasets is lacking. OBJECTIVES: In this study, we aimed to assess concordance between subgroup disproportionality scores and European Medicines Agency Pharmacovigilance Risk Assessment Committee (PRAC) discussions of potential subgroup risk. METHODS: The subgroup disproportionality method described by Sandberg et al., and variants, were applied to statistically screen for subgroups at potential increased risk of ADRs, using data from the US FDA Adverse Event Reporting System (FAERS) cumulative from 2004 to quarter 2 2021. The reference set used to assess concordance was manually extracted from PRAC minutes from 2015 to 2019. Mentions of subgroups presenting potential differentiated risk and overlapping with the Sandberg method were included. RESULTS: Twenty-seven PRAC subgroup examples representing 1719 subgroup drug-event combinations (DECs) in FAERS were included. Using the Sandberg methodology, 2 of the 27 could be detected (one for age and one for sex). No subgroup examples for pregnancy and underlying condition were detected. With a methodological variant, 14 of 27 examples could be detected. CONCLUSIONS: We observed low concordance between subgroup disproportionality scores and PRAC discussions of potential subgroup risk. Subgroup analyses performed better for age and sex, while for covariates not well-captured in FAERS, such as underlying condition and pregnancy, additional data sources should be considered.


Asunto(s)
Sistemas de Registro de Reacción Adversa a Medicamentos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Embarazo , Femenino , Estados Unidos , Humanos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Medición de Riesgo , Pacientes , United States Food and Drug Administration , Farmacovigilancia
3.
BMC Pharmacol Toxicol ; 23(1): 71, 2022 09 26.
Artículo en Inglés | MEDLINE | ID: mdl-36163187

RESUMEN

AIMS: The Blood-Brain Barrier (BBB) is a filter for most medications and blocks their passage into the brain. More effective drug delivery strategies are urgently needed to transport medications into the brain. This study investigated the biodistribution of thymoquinone (TQ) and the effect on enzymatic and non-enzymatic oxidative stress indicators in different brain regions, either in free form or incorporated into nanocarriers as mesoporous silica nanoparticles (MSNs). Lipid bilayer-coated MSNs. MATERIALS AND METHODS: MSNs and LB-MSNs were synthesized and characterized using a transmission electron microscope and dynamic light scattering to determine the particle size and zeta potential. TQ encapsulation efficiency and TQ's release profile from LB-MSNs were also examined. The impact of loading LB-MSNs with TQ-on-TQ delivery to different brain areas was examined using chromatographic measurement. Furthermore, nitric oxide, malondialdehyde (MDA), reduced glutathione, and catalase were evaluated as oxidant and antioxidant stress biomarkers. KEY FINDINGS: The LB-MSNs formulation successfully transported TQ to several areas of the brain, liver, and kidney, revealing a considerable increase in TQ delivery in the thalamus (81.74%) compared with that in the free TQ group and a considerable reduction in the cortex (-44%). The LB-MSNs formulation had no significant effect on TQ delivery in the cerebellum, striatum, liver, and kidney. SIGNIFICANCE: TQ was redistributed in different brain areas after being encapsulated in LB-MSNs, indicating that LB-MSNs have the potential to be developed as a drug delivery system for selective clinical application of specific brain regions. CONCLUSIONS: LB-MSNs are capable nanoplatforms that can be used to target medications precisely to specific brain regions.


Asunto(s)
Nanopartículas , Dióxido de Silicio , Animales , Antioxidantes , Benzoquinonas , Disponibilidad Biológica , Encéfalo , Catalasa , Sistemas de Liberación de Medicamentos/métodos , Liberación de Fármacos , Glutatión , Membrana Dobles de Lípidos/química , Malondialdehído , Nanopartículas/química , Óxido Nítrico , Oxidantes , Porosidad , Ratas , Ratas Wistar , Dióxido de Silicio/química , Distribución Tisular
4.
Biomedicines ; 10(2)2022 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-35203487

RESUMEN

Vitamin D inadequacy appears to be on the rise globally, and it has been linked to an increased risk of osteoporosis, as well as metabolic, cardiovascular, and autoimmune diseases. Vitamin D concentrations are partially determined by genetic factors. Specific single nucleotide polymorphisms (SNPs) in genes involved in vitamin D transport, metabolism, or binding have been found to be associated with its serum concentration, and these SNPs differ among ethnicities. Vitamin D has also been suggested to be a regulator of the gut microbiota and vitamin D deficiency as the possible cause of gut microbial dysbiosis and inflammation. This pilot study aims to fill the gap in our understanding of the prevalence, cause, and implications of vitamin D inadequacy in a pediatric population residing in Qatar. Blood and fecal samples were collected from healthy subjects aged 4-14 years. Blood was used to measure serum metabolite of vitamin D, 25-hydroxycholecalciferol 25(OH)D. To evaluate the composition of the gut microbiota, fecal samples were subjected to 16S rRNA gene sequencing. High levels of vitamin D deficiency/insufficiency were observed in our cohort with 97% of the subjects falling into the inadequate category (with serum 25(OH)D < 75 nmol/L). The CT genotype in rs12512631, an SNP in the GC gene, was associated with low serum levels of vitamin D (ANOVA, p = 0.0356) and was abundant in deficient compared to non-deficient subjects. Overall gut microbial community structure was significantly different between the deficient (D) and non-deficient (ND) groups (Bray Curtis dissimilarity p = 0.049), with deficient subjects also displaying reduced gut microbial diversity. Significant differences were observed among the two major gut phyla, Firmicutes (F) and Bacteroidetes (B), where deficient subjects displayed a higher B/F ratio (p = 0.0097) compared to ND. Vitamin D deficient children also demonstrated gut enterotypes dominated by the genus Prevotella as opposed to Bacteroides. Our findings suggest that pediatric vitamin D inadequacy significantly impacts the gut microbiota. We also highlight the importance of considering host genetics and baseline gut microbiome composition in interpreting the clinical outcomes related to vitamin D deficiency as well as designing better personalized strategies for therapeutic interventions.

5.
Tissue Cell ; 65: 101371, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32746989

RESUMEN

The review gives an overview of the mechanisms of internalization and distribution of nanoparticles in stem cells this is achieved via providing analysis of the methods used in exploring the migration routes of stem cells, and their reciprocity. In addition, exploring microenvironment target in the body, and tracking the fate of exogenously transplanted stem cells by using innovative and non-invasive techniques will also be discussed. Such techniques like magnetic resonance imaging (MRI), multimodality tracking, optical imaging, and nuclear medicine imaging, which were designed to follow up stem cell migration. This review will explain the various distinctive strategies to enhance homing of labeled stem cells with nanoparticles into damaged hepatic and renal tissues, this purpose was obtained by inducing a specific gene into stem cells, various chemokines, and applying an external magnetic field. Also, this work illustrates how to improve nanoparticles uptake by using transfection agents or covalently binding an exogenous protein (i.e., Human immunodeficiency virus-Tat protein) or conjugating a receptor-specific monoclonal antibody or make modifications to iron coat. It contains stem cell labeling methods such as extracellular labeling and internalization approaches. Ultimately, our review indicates trails of researchers in nanoparticles utilization in stem cell therapy in both kidney and liver diseases.


Asunto(s)
Enfermedades Renales/terapia , Hepatopatías/terapia , Trasplante de Células Madre Mesenquimatosas , Nanopartículas Multifuncionales/química , Animales , Rastreo Celular , Humanos , Enfermedades Renales/patología , Hepatopatías/patología , Modelos Biológicos
6.
Physiol Behav ; 222: 112934, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32353367

RESUMEN

Depression is a mental illness with a high prevalence in humans reaching 21% of the worldwide population.The present study aims to evaluate the antidepressant effect of different formulations of Thymoquinone; free Thymoquinone (TQ), Thymoquinone-loaded Chitosan nanoparticles (TQ-TPP-Cs NPs) and Thymoquinone-loaded Chitosan nanoparticles coated with polysorbate 80 (TQ-TPP-Cs NPs-PSb80) that have been prepared to avoid the low bioavailability of TQ. Rats were randomly separated into control rats, depression control induced by reserpine, rat model treated with TQ, rat model treated with TQ-TPP-Cs NPs and rat model treated with TQ-TPP-Cs NPs-PSb80. The results indicate that TQ-TPP-Cs NPs loaded with polysorbate 80 was more efficient in ameliorating the behavioral and neurochemical changes induced by reserpine than TQ and TQ-TPP-Cs NPs. Formulationswere characterized for size, morphology, encapsulation efficiency and in vitro drug release before their use in treatment. Reserpine induced a reduction in motor activity and swimming time and increased immobility time as indicated from the open field test (OFT) and forced swimming test (FST). In addition, a significant decrease in the monoamine neurotransmitters serotonin (5-HT), norepinephrine (NE) and dopamine (DA) was recorded in the cortex, hippocampus and striatum of reserpine-treated rats. The present data suggest that the antidepressant efficacy of TQ could be enhanced by engaging TQ with chitosan nanoparticles as a drug carrier and the formulations were modified by coating with polysorbate 80.


Asunto(s)
Quitosano , Nanopartículas , Animales , Benzoquinonas , Depresión/inducido químicamente , Depresión/tratamiento farmacológico , Modelos Animales de Enfermedad , Polisorbatos , Ratas , Reserpina
7.
Artículo en Inglés | MEDLINE | ID: mdl-27752313

RESUMEN

Delays in the discharge of hospital patients cause a backlog for new admissions from the Emergency Departments (ED), outpatient clinics, and transfers from the Intensive Care Units (ICU). A variety of initiatives have been reported on previously which aim to tackle this problem with variable success. In this quality improvement project, we aimed to increase the proportion of discharged patients who leave the paediatric unit by 12:00 Noon from 7% to 30% by May 2015. A baseline discharge process map was studied to understand the possible causes of the delays. A survey was conducted to look for the most likely cause for the delay. A data collection tool was designed to record the various steps in the discharge process for the pre-and post-intervention phases. Using a series of PDSA cycles, interventions were introduced. The average time for the discharge process was two hours and the baseline average percent of patients discharged by 12:00 Noon was 7% of all discharges. The leading cause for the delayed discharges was late orders by the physicians. Post-intervention, there was increase in the percentage of patients discharged by 12:00 Noon from 7% to 34%. 42% of discharged patients had appropriate reasons for afternoon discharge. By excluding these patients, the percentage of adjusted timely morning discharge has increased from 36% to 70%. Continuous monitoring and engagement of teams with regular feedback were the most important factors in achieving and sustaining improvement in the timely morning discharge of patients from our paediatric units.

8.
Artículo en Inglés | MEDLINE | ID: mdl-27651897

RESUMEN

This quality improvement project aimed to reduce the 'no show' rate in a paediatric neurology clinic in Qatar. No show, in outpatient clinics, is defined as patients who fail to attend their scheduled clinic appointments. It is one of the targets for improving quality of care. It leads to longer waiting times for patients to be seen in outpatient clinics, and the result is patients missing their important appointments. It also results in a waste of the clinic resources, and physician and other healthcare practitioners' time. This study was undertaken as part of the CCITP (clinical care improvement training programme). A project team was assembled with coaching support. The department chairman and the appointment system personnel were involved. Baseline and ongoing measures were collected and charted. The baseline no-show rate was identified as 49%. Following three intervention PDSAs, mainly addressing communication and appointment flexibility, the post intervention no-show rate dropped to 18% and was sustained below the target of 25% for two years. Better communication and appointment flexibility can significantly reduce the no-show rate in outpatient clinics.

9.
Pediatr Radiol ; 36(2): 158-61, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16328326

RESUMEN

Neonatal hypertension occurs in 2% of all infants and it is caused by renovascular abnormalities in 70% of these infants. The gold standard for diagnosing renovascular disease is conventional renal angiography. However, in neonates the procedure is not commonly used because of its invasive and technically challenging nature. MRI and MR angiography (MRA) are less invasive yet reliable means of detecting renovascular disease in adults. There is minimal literature on the use of MRI/MRA in neonatal hypertension. We report a neonate with hypertension secondary to a renovascular abnormality in which MRI/MRA was helpful in uncovering segmental renal artery stenosis. The infant underwent partial nephrectomy with subsequent resolution of his hypertension. Further studies are needed to validate the use of MRI/MRA in the evaluation of neonatal hypertension.


Asunto(s)
Hipertensión Renovascular/diagnóstico , Angiografía por Resonancia Magnética , Obstrucción de la Arteria Renal/diagnóstico , Gadolinio , Humanos , Hipertensión Renovascular/etiología , Hipertensión Renovascular/terapia , Recién Nacido , Riñón/irrigación sanguínea , Riñón/diagnóstico por imagen , Riñón/cirugía , Masculino , Radiografía , Obstrucción de la Arteria Renal/complicaciones
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