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1.
Int J Clin Pract ; 2024: 6656097, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38328797

RESUMO

Background: During the COVID-19 pandemic, there was increased adoption of telepharmacy, which has proven benefits. This study was conducted to assess the knowledge and perception of the community pharmacists of Aseer region, Saudi Arabia, towards telepharmacy services and evaluate their willingness to adopt telepharmacy in clinical practice during the COVID-19 pandemic. Materials and Methods: A cross-sectional study was conducted using an online self-administered structured anonymous questionnaire on the community pharmacists of Aseer region, Saudi Arabia. It covers demographics, computer access and literacy, knowledge and perception, and willingness to practice telepharmacy. Results were expressed as frequencies, percentages, and mean. The comparison between the classes of the demographic variables and the scores was done via Kruskal-Wallis and Mann-Whitney tests. Result: About half of the pharmacists in our study showed average knowledge about telepharmacy, the practical application of telepharmacy technology, and telepharmacy guidelines with a percentage of 53%, 52%, and 47%, respectively). Majority of the participants showed high perception towards telepharmacy in Saudi Arabia, while 93% of the pharmacists in Saudi Arabia agreed that the implementation of telepharmacy technology is appropriate due to the current COVID-19 pandemic. Only a significant relation was found between gender and computer access, literacy, and perceptions towards telepharmacy with p values of 0.033 and 0.026, respectively. Conclusion: The majority of the community pharmacists exhibited a positive perception and are willing to practice the concept of telepharmacy despite having a below average knowledge of telepharmacy. A future study involving the entire kingdom of Saudi Arabia could help identify the gaps in the knowledge, perception, and willingness to practice telepharmacy on a broader scale and thus promote telepharmacy adoption in the entire kingdom.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , Farmacêuticos , Estudos Transversais , Pandemias , Arábia Saudita/epidemiologia , Percepção
2.
Artigo em Inglês | MEDLINE | ID: mdl-38526617

RESUMO

This study emphasized on the synthesis of zinc oxide nanoparticles (ZnO NPs) in an environmentally friendly manner from the extract of Catharanthus roseus leaves and its antibacterial assessment against the pneumonia-causing pathogen Klebsiella pneumoniae. This simple and convenient phytosynthesis approach is found to be beneficial over conventional methods, wherein plants serve as excellent reducing, capping, and stabilizing agents that enables the formation of ZnO NPs without the use of harmful chemicals. The formation of ZnO NPs was confirmed through several characterization techniques such as UV-visible spectroscopy, XRD, FT-IR, SEM, HR-TEM, and EDX. XRD analysis revealed high polycrystallinity with crystallite size of approximately 13 nm. SEM and HR-TEM revealed the hexagonal structure of ZnO NPs with the particle size range of 20-50 nm. The EDX shows the elemental purity without any impurity. Furthermore, the antibacterial efficacy by the technique of disc diffusion exhibited clear inhibition zones in ZnO NPs-treated discs. In addition, 125 µg/mL of ZnO NP concentration showed minimum inhibition by the microbroth dilution method. The potent inhibitory activity was further validated with trypan blue dye exclusion and fluorescence microscopy. Finally, SEM examination confirmed the efficient antibacterial potential of ZnO NPs through disruption of the intact morphology of Klebsiella pneumoniae.

3.
Saudi Pharm J ; 32(2): 101939, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38261891

RESUMO

Many Ruellia species have been utilized in traditional medicine and despite the prevalent use of Ruellia tweediana in folk medicine, its antioxidant potential and polyphenol content have not been investigated. Therefore, the present study aimed to explore the medicinal value of R. tweediana by evaluating its total phenolic (TPC) and flavonoid contents (TFC), GC-MS analysis, antioxidant, antibacterial, and enzyme inhibition activities. The TPC and TFC of the extract/fractions were assessed using the Folin-Ciocalteu and aluminum trichloride methods, respectively. To determine the antioxidant capacity, five different assays were used: DPPH, ABTS, CUPRAC, FRAP, and metal chelating assays. The inhibition activity against α-glucosidase, α-amylase, cholinesterases, and lipoxygenase enzymes was also analyzed. Furthermore, GC-MS was performed for chemical screening of non-polar fraction. The methanol extract showed the maximum TPC (167.34 ± 2.23 mg GAE/g) and TFC (120.43 ± 1.71 mg RE/g) values among all the tested samples. GC-MS screening of the n-hexane fraction showed the presence of 40 different phytoconstituents. The results demonstrated the highest scavenging potential of the methanol extract against DPPH (167.79 ± 2.75 mg TE/g) and ABTS (255.32 ± 2.91 mg TE/g) radicals, as well as the metal-reducing capacity measured by CUPRAC (321.34 ± 3.09 mg TE/g), FRAP (311.32 ± 2.91 mg TE/g), and metal chelating assay (246.78 ± 10.34 mg EDTAE/g). Notably, the n-hexane fraction revealed the highest α-glucosidase and α-amylase inhibition activity (186.8 ± 2.84 and 179.7 ± 4.32 mg ACAE/g, respectively) while methanol extract showed highest acetylcholinesterase and butyrylcholinesterase inhibition activity (198.6 ± 3.31 and 184.3 ± 2.92 mg GALE/g, respectively). The GC-MS identified Lupeol showed best binding affinity with all docked enzymes as compared to standard compounds. The presence of bioactive phytoconstituents showed by GC-MS underscores the medicinal importance of R. tweediana, making it a promising candidate for natural medicine.

4.
Saudi Pharm J ; 29(2): 121-133, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33398228

RESUMO

Corona virus disease 2019 (COVID-19) outbreak has become a severe community health threat across the world. Covid-19 is a major illness, presently there is no as such any medicine and vaccine those can claim for complete treatment. It is spreading particularly in a feeble immune people and casualties are expanding abruptly and put the health system under strain. Among the strategic measures face mask is one of the most used measures to prevent spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Wearing a face mask possibly create a false sense of security lead to decline others measures. Face mask could be risk for the people of under lying medical conditions, old age group, outdoor exercise, acute and chronic respiratory disorders and feeble innate immune. Restrictive airflow due to face mask is the main cause of retention of CO2 called hypercapnia that can lead to respiratory failure with symptoms of tachycardia, flushed skin, dizziness, papilledema, seizure and depression. According to latest updates face shield and social distancing could be better substitute of face mask.

5.
Mikrochim Acta ; 186(12): 828, 2019 11 21.
Artigo em Inglês | MEDLINE | ID: mdl-31754797

RESUMO

The autosomal recessive-hyper immunoglobulin E syndromes (AR-HIES) are inherited inborn primary immunodeficiency disorders caused mainly by mutations in the dedicator of cytokinesis 8 (DOCK8) gene. A method is described for the selection of DNA aptamers against DOCK8 protein. The selection was performed by using a gold electrode as the solid matrix for immobilization of DOCK8. This enables voltammetric monitoring of the bound DNA after each selection cycle. After eight rounds of selection, high affinity DNA aptamers for DOCK8 were identified with dissociation constants (Kds) ranging from 3.3 to 66 nM. The aptamer which a Kd of 8.8 nM was used in an aptasensor. A gold electrode was modified by self-assembly of the thiolated aptamer, and the response to the DOCK8 protein was detected by monitoring the change in the electron transfer resistance using the ferro/ferricyanide system as a redox probe. The aptasensor works in the 100 pg.mL-1 to 100 ng.mL-1 DOCK8 concentration range, has a detection limit of 81 pg.mL-1 and good selectivity over other proteins in the serum. Graphical abstractSchematic representation of an electrochemical screening protocol for the selection of DNA aptamer against dedicator of cytokinesis 8 protein using electrode as solid support for target immobilization.


Assuntos
Aptâmeros de Nucleotídeos/química , Fatores de Troca do Nucleotídeo Guanina/análise , Proteínas Imobilizadas/análise , Técnicas Biossensoriais , Espectroscopia Dielétrica , Dimerização , Técnicas Eletroquímicas/métodos , Eletrodos , Ferricianetos/química , Ouro/química , Limite de Detecção , Oxirredução , Técnica de Seleção de Aptâmeros/métodos , Sensibilidade e Especificidade , Compostos de Sulfidrila/química , Propriedades de Superfície
6.
Pattern Recognit Lett ; 125: 806-812, 2019 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-32855578

RESUMO

Increased accuracy and affordability of depth sensors such as Kinect has created a great depth-data source for various 3D oriented applications. Specifically, 3D model retrieval is attracting attention in the field of computer vision and pattern recognition due to its numerous applications. A cross-domain retrieval approach such as depth image based 3D model retrieval has the challenges of occlusion, noise and view variability present in both query and training data. In this paper, we propose a new supervised deep autoencoder approach followed by semantic modeling to retrieve 3D shapes based on depth images. The key novelty is the two-fold feature abstraction to cope with the incompleteness and ambiguity present in the depth images. First, we develop a supervised autoencoder to extract robust features from both real depth images and synthetic ones rendered from 3D models, which are intended to balance reconstruction and classification capabilities of mix-domain data. Then semantic modeling of the supervised autoencoder features offers the next level of abstraction to cope with the incompleteness and ambiguity of the depth data. It is interesting that unlike any other pairwise model structures, we argue that cross-domain retrieval is still possible using only one single deep network trained on real and synthetic data. The experimental results on the NYUD2 and ModelNet10 datasets demonstrate that the proposed supervised method outperforms the recent approaches for cross-modal 3D model retrieval.

7.
Water Environ Res ; 90(2): 129-135, 2018 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-28646571

RESUMO

In the present study two designs, vertical and horizontal systems, were used and two different plant species, Water Lettuce (Pistia stratiotes) and Reed plant (Phragmites karka), compared for their removal efficiency. The vertical system appeared to be more stable and efficient for almost all the parameters. The vertical system, planted with Water Lettuce, showed percentage removal efficiency for BOD, phosphate and chloride as 82, 95.4, and 51, respectively, whereas turbidity and total suspended solids removal efficiencies were almost the same. However, fecal coliform removal by the Water Lettuce was 98.8% for both designs (vertical and horizontal), showing the ability of the plant to uptake nutrients and release toxins for pathogen disinfection. It appears that the vertical system could be the better option, planted with Water Lettuce, or with both plants in a co-culture environment.


Assuntos
Biodegradação Ambiental , Eliminação de Resíduos Líquidos/métodos , Áreas Alagadas , Araceae , Águas Residuárias/química , Poluentes Químicos da Água/análise , Purificação da Água
8.
East Mediterr Health J ; 23(11): 744-753, 2018 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-29319146

RESUMO

The patterns of over-the-counter medication (OTC) usage among adolescents living in the United Arab Emirates (UAE) remains largely understudied. The objectives of this study are: (1) to determine the profile of OTC use among UAE adolescents; and (2) to determine the biological or physical, psychological or behavioural, and social predictors of OTC use among the UAE adolescent population. Using a cross-sectional study design, data were collected on the prevalence of OTC use for a sample of 6363 adolescents. Overall, 51% of participants in this study reported OTC use. The most common form of OTC used was acetaminophen. Significant predictors of OTC use were: nationality (UAE, GCC, Arab / Middle East, Arab / Africa, Western, other); needed health care but did not receive it; sex (female); age (15-18 years); any medical diagnosis; unconventional drug use; spending more than 5 hours using TV and computer daily; and using prescription medicines. Thus, there is a need to develop public health policies and strategies that promote appropriate use of OTC in the population.


Assuntos
Medicamentos sem Prescrição/administração & dosagem , Adolescente , Fatores Etários , Estudos Transversais , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Masculino , Medicamentos sob Prescrição/administração & dosagem , Prevalência , Tempo de Tela , Fatores Sexuais , Fatores Socioeconômicos , Emirados Árabes Unidos/epidemiologia , Adulto Jovem
9.
East Mediterr Health J ; 24(3): 283-294, 2018 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-29908024

RESUMO

BACKGROUND: Tobacco use among adolescents is an important public health concern as it causes various forms of smokingrelated health problems and can create a gateway for other substance abuse. AIM: This study examined the prevalence, profile and predictors of tobacco use among expatriate and national adolescents living in the United Arab Emirates (UAE). METHODS: Using a cross-sectional study design (2007-2009), we collected data on the prevalence of tobacco use in 6363 adolescents aged 13-20 years, including current smokers of cigarettes, midwakh, shisha and any other form of tobacco. We also collected demographic, socioeconomic, residential and behavioural data. RESULTS: In the previous 30 days, 505 (8.9%) participants had smoked cigarettes, 355 (6.3%) had smoked midwakh, 421 (7.4%) had smoked shisha and 380 (6.4%) had smoked any other form of tobacco. Overall, 818 (14.0%) adolescents were current smokers, who reported occasional or daily use of at least one form of tobacco in the past 30 days. Results consistently indicated that the prevalence of tobacco use was higher among men than women, regardless of age and tobacco form. Among men, cigarette smoking was the most popular, whereas shisha was the most smoked form of tobacco among women. Being male and ever having used illegal drugs consistently emerged as significant predictors of all forms of tobacco use. CONCLUSION: There is a need for continued public health strategies and education campaigns to discourage adolescents in the UAE from using tobacco.


Assuntos
Fumar Tabaco/epidemiologia , Adolescente , Estudos Transversais , Demografia , Feminino , Humanos , Masculino , Prevalência , Fatores Socioeconômicos , Emirados Árabes Unidos/epidemiologia , Adulto Jovem
11.
Inj Prev ; 20(2): 121-7, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23722156

RESUMO

This study examines the profile of injuries among adolescents in the United Arab Emirates (UAE) and identifies related factors associated with injury. A cross-sectional study design determined incidence of injury for a sample of 6363 adolescents. Data collected information on injury in the past 12 months, socio-demographic, behavioural and sensory data. Logistic regression modelling was used to examine predictors of physical injury for the past 12 months. Among participants, 18% experienced injury; the three top causes include accidental falls (38%), being struck by an object or person (18%), and motor vehicle injuries (MVI) (13%). The majority of injuries took place at the participant's home and surrounding area. Identified risk factors that are amenable for prevention include smoking behaviour, exposure to smoking, physical activity profile, family income, and speeding behaviour. Our findings highlight the need for public health policies and education programmes that reduce injury among the UAE adolescent population.


Assuntos
Acidentes por Quedas/prevenção & controle , Acidentes de Trânsito/prevenção & controle , Comportamento do Adolescente , Violência/prevenção & controle , Ferimentos e Lesões/prevenção & controle , Prevenção de Acidentes , Acidentes por Quedas/estatística & dados numéricos , Acidentes de Trânsito/estatística & dados numéricos , Adolescente , Estudos Transversais , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Incidência , Masculino , Formulação de Políticas , Fatores de Risco , Fatores Socioeconômicos , Emirados Árabes Unidos/epidemiologia , Violência/estatística & dados numéricos , Ferimentos e Lesões/epidemiologia , Ferimentos e Lesões/etiologia
12.
Asian J Psychiatr ; 91: 103870, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38154352

RESUMO

The world continues to face unprecedented psycho-social challenges after the COVID-19 pandemic. Prolonged Grief Disorder (PGD) is a young psychiatric condition describing grief exceeding standard cultural, social, and religious norms. We assessed the prevalence of PGD in Pakistan along with its correlation to anxiety, depression, and psychological distress. The prevalence of PGD was estimated to be 15 % with grief intensity correlating with depression, anxiety, and serious mental illness. People who were closely related to the deceased were more likely to experience severe PGD symptoms. Discussions about grief and measures to curb its psychological effects are crucial in the post-pandemic world.


Assuntos
Luto , COVID-19 , Adulto , Humanos , Estudos Transversais , Pandemias , Transtorno do Luto Prolongado , Prevalência , Paquistão/epidemiologia , COVID-19/epidemiologia
13.
J Infect Public Health ; 17(2): 308-314, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38157783

RESUMO

BACKGROUND: Pain has an adverse effect on HRQoL and has social, psychological, and physical repercussions for ESRD patients. In the present study, we assessed chronic pain in ESRD patients on HD in terms of severity and interference with activity. We also assessed the impact it has on these patients, along with looking at the factors that were linked to QoL in this population. METHODS: A multicenter, cross-sectional study carried out between April and July of 2023 in the hemodialysis units of Asir Central Hospital and Khamis Mushait General Hospital. Brief Pain Inventory and European Quality of Life scale 5 dimensions (EQ-5D) scale, including its European Quality of Life visual analogue scale (EQ-VAS) component, were used to assess pain and QoL, respectively. RESULTS: A total of 97 participants were included in the final study. The average interference level of pain with daily functions was 22.5 ± 15.0 out of 70. The mean interference score was significantly higher among patients at rural areas (28.2 ± 16.3; P = 0.012), and those who undergone dialysis session for ≥ 4 times per week (31.6 ± 16.7; P = 0.026). The overall score of quality of life ranged from 20% to 92% with mean score of 36.5 ± 12.8%. The multiple linear regression analysis revealed that patients with higher BMI, more frequent dialysis sessions per week, and higher level of pain interference with daily functions demonstrated lower QoL (B= - 2.36, - 1.46, and - 0.64, respectively. CONCLUSIONS: Pain has a significant negative impact on QoL in ESRD patients undergoing HD. Patients with higher BMI, more frequent dialysis sessions, and higher level of pain interference with daily functions are at higher risk of lower QoL. These findings provide valuable information for educators, physicians, and other healthcare providers working with patients undergoing HD.


Assuntos
Falência Renal Crônica , Qualidade de Vida , Humanos , Qualidade de Vida/psicologia , Arábia Saudita/epidemiologia , Estudos Transversais , Diálise Renal/efeitos adversos , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Falência Renal Crônica/epidemiologia , Dor/epidemiologia
14.
PLoS One ; 19(1): e0296313, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38206937

RESUMO

BACKGROUND: Knee osteoarthritis (KOA) is one of the most common conditions resulting in disability, particularly in the elderly population. Osteoarthritis (OA) is the most common articular disease and the leading cause of chronic disability in the developed world. OBJECTIVE: This study was carried out to evaluate knee pain in the Asir region of Saudi Arabia. An analytical cross-sectional survey design was adopted in the Asir region from April 2023 to August 2023 to assess the knee pain of the adult population using an anonymous online questionnaire. RESULTS: Of 1234, 332 were men (26.90) and 902 were women (73.09). WOMAC index score category 55.34% (n = 683) of the subjects had a low risk (score <60), 28.68% (n = 354) had a moderate risk (score 60-80), and 15.96% (n = 197) had a high risk (score ≥81) for KOA. According to clinical criteria, 79.33% (n = 979) of the study subjects had OA. Age group, gender 2.17 (1. 67-2.82) [OR 2.17; 95% CI 1.67-2.82), family history of OA [OR 0.47; 95% CI 0.37-0.62], diabetes [OR 2.78; 95% CI 2.17-3.56], hypertension [OR 0.35; 95% CI 0.26-0.45] were significantly associated with the percentage of the WOMAC index score using the Chi-square test analysis (P<0.05). Therefore, the WOMAC index showed higher diagnostic precision with a statistically significant association [OR 9.31 CI 6.90-12.81] with a P< 0.0001. CONCLUSION: KOA is more common in older, obese people who have reached the age of 50 in the Asir region, and it is more prevalent in women. Alarms the need for appropriate awareness programs for better disease prevention and health outcomes for the benefit of the community through general public health programs.


Assuntos
Osteoartrite do Joelho , Masculino , Adulto , Humanos , Feminino , Idoso , Estudos Transversais , Arábia Saudita/epidemiologia , Articulação do Joelho , Dor
15.
Artigo em Inglês | MEDLINE | ID: mdl-37623182

RESUMO

While the detrimental effects of protracted political conflict on the wellbeing of Palestinians living in the occupied Palestinian territory (oPt) are generally recognized, the impact of perceived threat on quality of life (QoL) faced from within their community (ingroup; Palestinians) and from the outgroup (Israelis) is unexplored. This cross-sectional study examined the following: (1) The status of perceptions of QoL on four domains measured by the World Health Organization Quality of Life (WHOQoL-Bref) instrument, physical health, psychological health, social relationships, and environment, among Palestinian adults (n = 709) living in the Gaza Strip; (2) The associations between perceived ingroup threat (PIT) and QoL on the four domains; (3) The associations between perceived outgroup threat (POT) and QoL on the four domains. Multivariable linear regression models revealed PIT was negatively associated with QoL in each of the four domains (p < 0.001). POT was positively associated with QoL in three of the four domains: physical health (p < 0.001), psychological health (p < 0.001), and social relationships (p < 0.001). This study contributes valuable insights into how QoL is viewed by a group experiencing collective existential threat. The findings expand the limited recognition of the reciprocal roles of perceived threat from the ingroup and outgroup on the QoL of vulnerable populations.


Assuntos
Árabes , Qualidade de Vida , Adulto , Humanos , Estudos Transversais , Existencialismo
16.
Cureus ; 15(1): e33633, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36793829

RESUMO

Juvenile nasopharyngeal angiofibroma (JNA) is a rare benign head and neck tumor. We report a rare case of JNA, provide a brief literature review, and treatment options, and emphasized the role of flutamide as pre-surgical medication for tumor regression. JNA primarily affects adolescent males aged 14 to 25 years. There are various theories explaining the formation of the tumor. However, sex hormones are found to play a crucial role in the etiology of the tumor. In recent years testosterone and dihydrotestosterone receptors have been identified on the tumor thus suggesting the strong influence of hormones. This permits the use of flutamide, an androgen receptor blocker, as adjuvant therapy for the treatment of JNA. This is a case of a 12-year-old boy who presented to the hospital with right-sided nasal obstruction, epistaxis, watery nasal discharge, and a mass in the right nasal cavity for two months. Diagnostic nasal endoscopy, ultrasonography, computed tomography, and magnetic resonance imaging were done. These investigations confirmed the diagnosis of JNA stage IV. The patient was started on treatment with flutamide for tumor regression.

17.
Food Sci Nutr ; 11(4): 1818-1825, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37051338

RESUMO

Agricultural waste valorization is currently getting attention across the world owing to its environmental impact and rich phytochemistry. The mandate of the current investigation was the extraction and characterization of bioactive moieties from the mustard oilseed cake/meal MOC and sesame oilseed cake/meal SOC through ultrasound extraction (UE) techniques due to its higher yield and less burden on the environment as compared to conventional extraction (CE). Purposely, the MOC and SOC were initially subjected to compositional analysis. Thereafter, bioactive moieties were extracted by using different solvents, that is, ethanol and distilled water, and by applying conventional and ultrasonic extraction techniques. The outcomes indicated that among the techniques, ultrasound exhibited the highest results, and in solvents, ethanol performed better. The treatment extracted with ethanol with UE at 10 min showed the best result for total phenolic contents (TPC) as (6.07 ± 0.03 09 g GAE/100 g MOC) and (7.09 ± 0.04 g GAE/100 g SOC), DPPH radical scavenging activity (67.3 ± 1.9 TE/100 g MOC) & (72.68 ± 1.9 TE/100 g SOC), and FRAP was recorded as (2.83 ± 0.02 g TE/100 g MOC) & (3.56 ± 0.03 g TE/100 g SOC). The higher antioxidant potential showed that the mustard and sesame waste holds significant therapeutic potential owing to its rich antioxidant profile and thus should be utilized for the development of functional products against lifestyle-related disorders. In conclusion, ultrasound is a better technique for maximum as well as accurate extraction, with ethanol exhibiting as a better solvent for this process with more yields as compared to distilled water.

18.
Pharmaceutics ; 15(1)2023 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-36678849

RESUMO

Aggregation of Amyloid-ß (Aß) leads to the formation and deposition of neurofibrillary tangles and plaques which is the main pathological hallmark of Alzheimer's disease (AD). The bioavailability of the drugs and their capability to cross the BBB plays a crucial role in the therapeutics of AD. The present study evaluates the Memantine Hydrochloride (MeHCl) and Tramiprosate (TMPS) loaded solid lipid nanoparticles (SLNs) for the clearance of Aß on SHSY5Y cells in rat hippocampus. Molecular docking and in vitro Aß fibrillation were used to ensure the binding of drugs to Aß. The in vitro cell viability study showed that the M + T SLNs showed enhanced neuroprotection against SHSY5Y cells than the pure drugs (M + T PD) in presence of Aß (80.35µM ± 0.455 µM) at a 3:1 molar ratio. The Box-Behnken Design (BBD) was employed to optimize the SLNs and the optimized M + T SLNs were further characterized by %drug entrapment efficiency (99.24 ± 3.24 of MeHCl and 89.99 ± 0.95 of TMPS), particle size (159.9 ± 0.569 nm), PDI (0.149 ± 0.08), Zeta potential (-6.4 ± 0.948 mV), Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM) and in vitro drug release. The TEM & AFM analysis showed irregularly spherical morphology. In vitro release of SLNs was noted up to 48 h; whereas the pure drugs released completely within 3 hrs. M + T SLNs revealed an improved pharmacokinetic profile and a 4-fold increase in drug concentration in the brain when compared to the pure drug. Behavioral tests showed enhanced spatial memory and histological studies confirmed reduced Aß plaques in rat hippocampus. Furthermore, the levels of Aß decreased in AlCl3-induced AD. Thus, all these noted results established that the M + T SLNs provide enhanced neuroprotective effects when compared to pure and individual drugs and can be a promising therapeutic strategy for the management of AD.

19.
Antibiotics (Basel) ; 12(7)2023 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-37508263

RESUMO

In recent years, N-Myristoyltransferase (NMT) has been identified as a new target for the treatment of fungal infections. It is observed that at present, there are increased rates of morbidity and mortality due to fungal infections. Hence, a series of novel myristic acid derivatives were designed via molecular docking studies and ADMET studies by targeting NMT (N-Myristoyltransferase). The designed myristic acid derivatives were synthesized by converting myristic acid into myristoyl chloride and coupling it with aryl amines to yield corresponding myristic acid derivatives. The compounds were purified and characterized via FTIR, NMR and HRMS spectral analyses. In this study, we carried out a target NMT inhibition assay. In the NMT screening assay results, the compounds 3u, 3m and 3t showed better inhibition compared to the other myristic acid derivatives. In an in vitro antifungal evaluation, the myristic acid derivatives were assessed against Candida albicans and Aspergillus niger strains by determining their minimal inhibitory concentrations (MIC50). The compounds 3u, 3k, 3r and 3t displayed superior antifungal capabilities against Candida albicans, and the compounds 3u, 3m and 3r displayed superior antifungal capabilities against Aspergillus niger compared to the standard drug FLZ (fluconazole). Altogether, we identified a new series of antifungal agents.

20.
Pharmaceuticals (Basel) ; 16(3)2023 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-36986433

RESUMO

Indole-tethered chromene derivatives were synthesised in a one-pot multicomponent reaction using N-alkyl-1H-indole-3-carbaldehydes, 5,5-dimethylcyclohexane-1,3-dione, and malononitrile, catalysed by DBU at 60-65 °C in a short reaction time. The benefits of the methodology include non-toxicity, an uncomplicated set-up procedure, a faster reaction time, and high yields. Moreover, the anticancer properties of the synthesised compounds were tested against selected cancer cell lines. The derivatives 4c and 4d displayed very good cytotoxic activity, with IC50 values ranging from 7.9 to 9.1 µM. Molecular docking revealed the potent derivatives have good binding affinity towards tubulin protein, better than the control, and the molecular dynamic simulations further demonstrated the stability of ligand-receptor interactions. Moreover, the derivatives followed all the drug-likeness filters.

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