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1.
Palliat Med Rep ; 3(1): 140-148, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36059911

RESUMO

Background: Caring for children at end of life (EOL) can be devastating for primary caregivers who are responsible for the physical, social, and emotional needs of their dying child. Limited information was found on resources in Saudi Arabia to manage the impact on primary caregivers from caring for a child receiving end of life care (EOLC). Purpose: The purpose of this study was to explore the experiences of primary caregivers caring for a child receiving EOLC within the Saudi Arabian health care system. Methods: A descriptive phenomenological study was conducted, and 24 female primary caregivers were interviewed individually. Participants were recruited from three hospitals and the surrounding community in Jeddah, Saudi Arabia. The data were collected over a period of seven weeks between August and September of 2019. Individual in-depth interviews were conducted using an 11-item investigator-developed interview guide derived from the literature on EOL. Thematic analysis was completed using transcripts from all interviews. Results: The findings suggest that primary caregivers caring for a child receiving EOLC were impacted psychologically, physically, socially, and financially. Primary caregivers expressed their heartbreak, lack of sleep, isolation, and financial challenges while caring for their child at EOL. Conclusions: Similar to what has been reported in the literature, primary caregivers caring for a child at EOL experience biopsychosocial and financial challenges. In addition, this study has implications for nursing education, practice, policy, and research regarding EOLC. Also, the findings can guide future research on EOL in Saudi Arabia and worldwide.

2.
Saudi Med J ; 42(12): 1353-1356, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34853141

RESUMO

OBJECTIVES: To retrospectively review a small series of infant neuroblastoma (NBL) in a single Saudi medical institution over 10 years, including their presentation, management, and outcomes. METHODS: Fifty-three subjects aged 0 to 14 years with previously untreated NBL who were diagnosed and treated at Princess Nora Oncology Center, King Abdulaziz Medical City (KAMC), Jeddah, Saudi Arabia, between 2010 and 2019. Six infants (11.3%) had stage 4S characteristics. RESULTS: The median age at diagnosis was 3 months (range 52 days - 4 months). Biopsies confirmed that the adrenal gland was the primary tumor site for 3 patients, while the other 2 had retroperitoneal sites. Four patients had favorable histology, and one had unfavorable histology. All patients had liver metastasis, and no bone marrow or skin metastasis was recorded. All patients received chemotherapy except one, and all survived with no disease progression at a median follow up to 5 years. CONCLUSION: Our data confirm that NBL-4S is a curable cancer, especially with early recognition and intervention. Chemotherapy is the first-line treatment for symptomatic patients. Unless the condition is life threatening, radiotherapy is not indicated. Surgical resection may be indicated in younger infants with localized tumors and favorable biology, but otherwise, it is not usually indicated for residual cases.


Assuntos
Neuroblastoma , Pré-Escolar , Humanos , Lactente , Estadiamento de Neoplasias , Neuroblastoma/patologia , Neuroblastoma/terapia , Prognóstico , Estudos Retrospectivos , Arábia Saudita , Resultado do Tratamento
3.
Biomed Pharmacother ; 138: 111461, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33706131

RESUMO

The present work describes the systematic development of paclitaxel and naringenin-loaded solid lipid nanoparticles (SLNs) for the treatment of glioblastoma multiforme (GBM). So far only temozolomide therapy is available for the GBM treatment, which fails by large amount due to poor brain permeability of the drug and recurrent metastasis of the tumor. Thus, we investigated the drug combination containing paclitaxel and naringenin for the treatment of GBM, as these drugs have individually demonstrated significant potential for the management of a wide variety of carcinoma. A systematic product development approach was adopted where risk assessment was performed for evaluating the impact of various formulation and process parameters on the quality attributes of the SLNs. I-optimal response surface design was employed for optimization of the dual drug-loaded SLNs prepared by micro-emulsification method, where Percirol ATO5 and Dynasan 114 were used as the solid lipid and surfactant, while Lutrol F188 was used as the stabilizer. Drug loaded-SLNs were subjected to detailed in vitro and in vivo characterization studies. Cyclic RGD peptide sequence (Arg-Gly-Asp) was added to the formulation to obtain the surface modified SLNs which were also evaluated for the particle size and surface charge. The optimized drug-loaded SLNs exhibited particle size and surface charge of 129 nm and 23 mV, drug entrapment efficiency >80% and drug loading efficiency >7%. In vitro drug release study carried out by micro dialysis bag method indicated more than 70% drug was release observed within 8 h time period. In vivo pharmacokinetic evaluation showed significant improvement (p < 0.05) in drug absorption parameters (Cmax and AUC) from the optimized SLNs over the free drug suspension. Cytotoxicity evaluation on U87MG glioma cells indicated SLNs with higher cytotoxicity as compared to that of the free drug suspension (p < 0.05). Evaluation of uptake by florescence measurement indicated superior uptake of SLNs tagged with dye over the plain dye solution. Overall, the dual drug-loaded SLNs showed better chemoprotective effect over the plain drug solution, thus construed superior anticancer activity of the developed nanoformulation in the management of glioblastoma multiforme.


Assuntos
Neoplasias Encefálicas , Sistemas de Liberação de Medicamentos/métodos , Flavanonas/administração & dosagem , Glioblastoma , Nanopartículas/administração & dosagem , Paclitaxel/administração & dosagem , Animais , Antineoplásicos Fitogênicos/administração & dosagem , Antineoplásicos Fitogênicos/síntese química , Antineoplásicos Fitogênicos/metabolismo , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/metabolismo , Linhagem Celular Tumoral , Portadores de Fármacos/administração & dosagem , Portadores de Fármacos/síntese química , Liberação Controlada de Fármacos/efeitos dos fármacos , Liberação Controlada de Fármacos/fisiologia , Antagonistas de Estrogênios/administração & dosagem , Antagonistas de Estrogênios/síntese química , Antagonistas de Estrogênios/metabolismo , Feminino , Flavanonas/síntese química , Flavanonas/metabolismo , Glioblastoma/tratamento farmacológico , Glioblastoma/metabolismo , Lipídeos , Masculino , Nanopartículas/química , Paclitaxel/síntese química , Paclitaxel/metabolismo , Tamanho da Partícula , Peptídeos Cíclicos/administração & dosagem , Peptídeos Cíclicos/síntese química , Ratos , Ratos Wistar
4.
Drug Discov Today ; 26(8): 1891-1903, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33610757

RESUMO

Cancer vaccines consist of nucleic acid derivatives such as plasmid DNA, small interfering RNA and mRNA, and can be customized according to the patient's needs. Nanomedicines have proven to be exceptionally good as miniaturized drug carriers, and thus they offer great advantages for delivering cancer vaccines. This review provides an overview of the literature on cancer vaccines, from their inception to current developments in the field.


Assuntos
Vacinas Anticâncer/administração & dosagem , Neoplasias/terapia , Vacinas Baseadas em Ácido Nucleico/administração & dosagem , Animais , DNA/administração & dosagem , Humanos , Lipídeos/química , Nanopartículas , Plasmídeos , Polímeros/química , RNA Mensageiro/administração & dosagem , RNA Interferente Pequeno/administração & dosagem
5.
Clin Case Rep ; 5(3): 315-320, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28265398

RESUMO

Pediatric emergency visits with purpura fulminans should raise the suspicion of hereditary homozygous protein C deficiency even beyond the neonatal age. The absence of this classical finding does not role the diagnosis out as atypical presentation with isolated intraocular bleeding was observed. Premarital counseling should be offered when family history suggests.

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