RESUMO
Febuxostat (FBX) is used to treat gout and chronic hyperuricemia. However, its bioavailability is moderate (49%) as a result of low solubility and first-pass metabolism. Therefore, the aim of our study is to improve FBX bioavailability by enhancement its solubility using self-nanoemulsifying drug delivery system (SNEDDS) technique in the form of transdermal film to avoid hepatic metabolism. To accomplish this goal, Eight SNEDDS formulae were prepared according to a three-factor, two-level D-Optimal mixture design to evaluate the effect of different ratios of the Lemon oil (X1), the surfactant Tween-20 (X2), and the co-surfactant PEG-400 (X3) on the globule size in order to reach smallest globular size. Results revealed that SNEDDS globule size ranged from 177 to 454 nm. The optimized formula consisted of 20% oil, 40% surfactant and 40% co-surfactant. Diffusion study showed improved enhancement in skin permeation that was confirmed by imaging using fluorescence microscope. In vivo plasma data showed significant (p < 0.05) difference in FBX plasma levels and pharmacokinetic parameters when compared with raw FBX loaded film. In conclusion, FBX-SNEDDS loaded transdermal film could be a successful way to improve solubility and skin permeability that would lead to improvement in patient's compliance.
Assuntos
Sistemas de Liberação de Medicamentos , Febuxostat/administração & dosagem , Supressores da Gota/administração & dosagem , Nanoestruturas , Administração Cutânea , Animais , Disponibilidade Biológica , Emulsões , Febuxostat/química , Febuxostat/farmacocinética , Supressores da Gota/química , Supressores da Gota/farmacocinética , Masculino , Tamanho da Partícula , Ratos , Ratos Wistar , Absorção Cutânea , Solubilidade , Tensoativos/químicaRESUMO
Herpetic epithelial keratitis is a viral infection of the cornea caused by the herpes simplex virus (HSV). It typically presents as a unilateral disease. Bilateral involvement is a rare manifestation of herpetic epithelial keratitis, accounting for only a small percentage of cases. By sharing this case, we aim to contribute to the understanding of bilateral herpetic epithelial keratitis and stimulate further research in this area to optimize patient care and outcomes A 13-year-old child, a known case of atopy, presented to the ophthalmology clinic with a complaint of pain, photophobia, and redness in the right eye (OD) for three days. The patient was diagnosed as a case of bilateral herpetic epithelial keratitis; he was started on moxifloxacin eye drops four times a day, Artelac (sodium hyaluronate) every two hours, carbomer HS, ganciclovir ointment five times per day. Bilateral herpetic epithelial keratitis is a rare manifestation of HSV infection, and its management poses unique challenges compared to unilateral disease. The diagnosis of bilateral herpetic epithelial keratitis is primarily based on clinical findings, including bilateral dendritic or geographic ulcers on the cornea. Fluorescein staining is a valuable tool for visualizing corneal ulcers. In our case, the presence of bilateral dendritic ulcers in the absence of significant anterior chamber inflammation supported the diagnosis of bilateral herpetic epithelial keratitis Despite the limited literature on bilateral herpetic epithelial keratitis, the principles of management remain consistent with those of unilateral disease. Early recognition, prompt initiation of antiviral therapy, and close follow-up are crucial for successful outcomes.
RESUMO
Migraine, a widespread and incapacitating neurological disorder, affects numerous individuals worldwide, causing severe headaches and impairing their quality of life. The interplay of genetic, environmental, and neurovascular factors underlies the pathophysiology of migraine. This report highlights the case of a 25-year-old woman with recurrent, severe headaches, predominantly in the right frontal and temporal regions. She was diagnosed with migraine with aura, a diagnosis supported by her family history. No previous history of seizures was reported. A comprehensive work-up, including neuroimaging, revealed left internal carotid artery hypoplasia with compensatory collateral circulation. The coexistence of severe migraines and left internal carotid artery hypoplasia underscores the complex interrelationship between cerebrovascular anomalies and neurological symptoms. The rarity of this vascular variation emphasizes the need for attentive clinical evaluation and consideration of anatomical deviations in migraine patients. As medical knowledge progresses, further research is essential to unravel the mechanisms connecting vascular anomalies and neurological disorders, ultimately leading to personalized interventions for improved patient outcomes.
RESUMO
Traumatic brain injuries are a significant public health concern often associated with immediate consequences. However, delayed complications can manifest, including rare congenital neural tube defects such as encephaloceles. We present a case of a 45-year-old male with a history of traumatic brain injuries who developed a posttraumatic frontal meningoencephalocele associated with cerebrospinal fluid rhinorrhea. This case emphasizes the need for vigilance in assessing patients with a history of head trauma for delayed complications, even years after the initial injury. Early diagnosis and intervention can significantly impact outcomes.
RESUMO
Objective This study investigates the prevalence and risk of thyroid disturbances in pregnant women with pre-existing diabetes mellitus (DM) or gestational diabetes mellitus (GDM) in a tertiary hospital setting in Riyadh, SA. This research's findings may help identify potential risk factors associated with thyroid disturbances during pregnancy and facilitate early diagnosis for at-risk pregnant women. Subjects and methods A retrospective cross-sectional study was conducted at an endocrinology clinic between October 2018 and December 2021 to evaluate the electronic records of pregnant women with DM or GDM who had documented normal thyroid function before pregnancy. Results Three hundred ninety-six files that met the selection criteria were deeply investigated and analyzed. The analysis showed that 378 (95.5%) patients were of Saudi nationality, and the mean age in years ± SD for the selected patients was 34.23 ± 5.468. The prevalence of obesity was 63.7%, with a mean body mass index (BMI) of 32.78 ± 6.78 kg/m2. The patients in this study were categorized into three groups based on their type of DM: 57 were diagnosed with type 1 DM (14.4%), 120 with type 2 DM (30.3%), and 219 with GDM (55.3%). The study identified 43 patients (10.85%) with subclinical hypothyroidism and 74 (18.69%) with hypothyroidism. Among the remaining patients, thyroid function was within the normal range for 264 (66.67%). The study also identified eight patients (2.02%) with subclinical hyperthyroidism and seven (1.77%) with hyperthyroidism. The prevalence of thyroid dysfunction was reported at 33.4%, with most of the dysfunction observed in the GDM group (20.7%). By comparison, the type 1 DM and type 2 DM groups presented a lower prevalence of thyroid dysfunction, accounting for only 4.1% and 8.6%, respectively. Conclusions Hypothyroidism, both clinical and subclinical, is more prevalent among patients with GDM than individuals with type 1 and type 2 DM. Research suggests a greater risk of developing hypothyroidism in patients with an increased BMI and among those older during pregnancy.
RESUMO
Background An ocular chemical injury is a critical medical condition that results in harm to many components within the orbit, including the epithelium, cornea, and anterior segment. Most accidents tend to transpire among individuals in younger age groups, primarily as a result of their exposure to hazardous conditions either within their domestic environment or in occupational settings. Objective The objective of this study is to evaluate the extent of community awareness of chemical eye injuries and the appropriate measures for urgent care, focusing on different age groups within the Al-Qassim region. Methods A cross-sectional study was utilized in this research, employing data from a sample of 384 individuals residing in Qassim. The participants completed a self-administered questionnaire, which was administered online and ensured anonymity. The questionnaire used in this study had been previously validated. Results The study included a total of 384 participants who were not affiliated with the medical field, selected from the Al-Qassim region. Most of the respondents demonstrated fairly good level of awareness regarding ocular chemical injury (69%). There was a statistically significant relationship between age and the level of awareness (p-value=0.00001<0.05). Most participants believed that ocular chemical injury could cause ocular complications (93.8%) and identified chloride and detergents (92.2%) as the main materials that cause ocular injuries. Conclusion Overall summary, this study's findings suggest that there exists a moderate degree of knowledge among the public regarding chemical injuries to the eye and the appropriate rapid response to such injuries. Majority of the community members were aware that ocular chemical injury can cause ocular complications, blindness, perforation, scarring, and cataracts. Additionally, chloride and detergents were found to be the most common causes of ocular injuries among the population. The study found the most common immediate action when exposed to ocular chemical injury was to irrigate the eye with large amount of water. The study established a statistically significant association between the age and awareness about ocular chemical injury; thus, age appears to be a key factor influencing the amount of awareness seen.