Publications by authors named "Alaa S Tulbah"

Tizanidine HCl (TZN) is an FDA-approved medication for treating spasticity. However, its oral administration presents obstacles to its efficacy, as it has a short duration of action and a low rate of absorption into the circulation (less than 40%) due to its rapid breakdown in the liver. In addition, its hydrophilic properties limit its capacity to cross the blood-brain barrier, thereby prohibiting it from reaching the central nervous system, where it can exert its intended therapeutic effects.

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Background/objectives: Nintedanib (NTD), a triple tyrosine kinase receptor inhibitor, is the recommended first-line tackling option for idiopathic pulmonary fibrosis (IPF). Nevertheless, the adequacy of NTD is curtailed by issues associated with its low solubility, first-pass effect, poor bioavailability, and liver toxicity. The objective of our work was to develop a non-invasive intratracheal (i.

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  • The research focused on developing hyaluronic acid-coated transbilosomes (VLF-HA-TBLs) for targeting venlafaxine delivery to the brain through the nose, aiming to improve treatment for depressive disorder.
  • The optimized VLF-HA-TBLs showed promising characteristics, such as a small size, stable surface charge, and high drug entrapment efficiency, with effective nasal diffusion and controlled release.
  • Compared to standard venlafaxine solutions, the VLF-HA-TBLs demonstrated significantly enhanced bioavailability in the brain and plasma, suggesting they could serve as an effective method for delivering the medication directly to the brain.
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Background/aim: Dasatinib (DS), a second-generation tyrosine kinase inhibitor, functions as a multi-target small-molecule drug via targeting various tyrosine kinases involved in neoplastic cell growth. DS inhibits cancer cell replication and migration, and induces tumor cell apoptosis in a variety of solid tumors. However, it is poorly soluble in water under some pH values.

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Diabetes mellitus is a metabolic disease that raises the odds of developing stroke. Candesartan has been used to prevent stroke due to its inhibitory effects on blood pressure, angiogenesis, oxidative damage, and apoptosis. However, oral candesartan has very limited bioavailability and efficacy due to its weak solubility and slow release.

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Ischemic stroke is the second-leading cause of death. Hyperglycemia, which is characteristic of diabetes mellitus, contributes to the development of endothelial dysfunction and increases the risk of stroke. Isoxsuprine is an efficient beta-adrenergic agonist that improves blood flow to the ischemic aria and stops the infarct core from growing.

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This work aimed to develop and produce lacosamide-loaded niosomes coated with chitosan (LCA-CTS-NSM) using a thin-film hydration method and the Box-Behnken design. The effect of three independent factors (Span 60 amount, chitosan concentration, and cholesterol amount) on vesicle size, entrapment efficiency, zeta potential, and cumulative release (8 h) was studied. The optimal formulation of LCA-CTS-NSM was chosen from the design space and assessed for morphology, in vitro release, nasal diffusion, stability, tolerability, and in vivo biodistribution for brain targeting after intranasal delivery.

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  • Quetiapine (QP) is an antipsychotic that is metabolized by the liver, which reduces its effectiveness, prompting the development of an intravenous delivery system using albumin nanoparticles (NPs) to enhance its activity and brain targeting.
  • The study focused on optimizing the QP-loaded albumin NPs by adjusting factors like human serum albumin concentration and pH, resulting in nanoparticles with a particle size of about 103.5 nm and a high entrapment efficiency of 96.3%.
  • The intravenous QP-albumin NPs demonstrated significantly better brain targeting and antipsychotic effects compared to oral QP, showing a 4.9-fold increase in targeting efficiency and reduced side effects
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  • Increased skin thickness and the rapid growth of keratinocyte cells hinder psoriasis treatment, but Gallic Acid (GA) has shown promise in addressing this issue.
  • Lipid-polymer hybrid nanoparticles (LPHNs) have advantages in drug delivery over traditional lipid or polymer nanoparticles, with optimizations leading to a size of 170.5 nm and improved drug release.
  • The GALPHN formulation significantly decreased psoriasis severity and immune cell abnormalities without major side effects, demonstrating its effectiveness for delivering GA in treating the condition.
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The feasibility of using lipid-polymer hybrid (LPH) nanocarriers as a potential platform for the intranasal delivery of ziprasidone (ZP), a second-generation antipsychotic, was explored. Different ZP-loaded LPH composed of a PLGA core and cholesterol-lecithin lipid coat were prepared using a single step nano-precipitation self-assembly technique. Modulation of polymer, lipid and drug amounts, as well as stirring-speed-optimized LPH with a particle size of 97.

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Objectives: Lung cancer is a leading cause of mortality worldwide. In lung cancer treatment, nebulized solid lipid nanoparticles may be a viable drug delivery method, helping the drug reach sites of action, and improving its inhalation efficiency and pulmonary deposition. This research focused on evaluating the effectiveness of solid lipid nanoparticles of favipiravir (Fav-SLNps) in facilitating drug delivery to sites of action in lung cancer treatment.

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Cancer is one of the most important causes of death worldwide. Several studies have shown the efficacy of apricot kernel seed as a cancer therapy due to the presence of amygdalin. These studies have demonstrated amygdalin's cytotoxicity, antioxidant activity, and apoptosis in vitro using human cancer cell lines.

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Background: Migraine is one of the neurological diseases that have a negative impact on subjects' productivity and daily activity of patients. Introducing monoclonal antibodies as a valuable option for resolving the persistent problem of migraine is still under investigation. The current study aimed to evaluate the efficacy and safety profile related to Erenumab.

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Coronavirus is a type of acute atypical respiratory disease representing the leading cause of death worldwide. Eucalyptol (EUC) known also as 1,8-cineole is a potential inhibitor candidate for COVID-19 (main protease-M) with effective antiviral properties but undergoes physico-chemical instability and poor water solubility. Nano-emulsion (NE) is a promising drug delivery system to improve the stability and efficacy of drugs.

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  • Lung cancer is a leading cause of death worldwide, and this study focuses on developing inhalable nanotechnology using atorvastatin calcium to directly target lung tumors.
  • The researchers created atorvastatin micellar nanoparticles using specific techniques and evaluated their characteristics and effectiveness through various scientific methods, including testing their safety on lung cancer cells.
  • Results showed that these nanoparticles have a suitable size for inhalation and were non-toxic at certain concentrations, suggesting they could be a promising approach for lung cancer treatment.
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  • Skin cancer is the most common type of cancer globally, and Vismodegib (VSD) is a drug used for its treatment, but it has low effectiveness due to poor bioavailability and potential side effects.
  • Researchers developed a nano-invasome gel to improve the delivery and effectiveness of VSD, using a formulation that included certain ingredients like cineole, cholesterol, and phospholipid.
  • The resulting VSD-loaded invasome gel showed significantly improved skin penetration and bioavailability—over 3.5 times greater than oral VSD—while also demonstrating strong anti-tumor effects, making it a promising alternative for skin cancer therapy.
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Lung cancer is the leading cause of cancer death. Many studies have shown the beneficial effects of Atorvastatin in decreasing the mortality risk and improving survival among patients with lung cancer. This research paper focuses on improving AVT cytotoxic activity and cellular uptake by developing mannitol microcarriers as a promising drug delivery system for lung cancer treatment and, studying the impact of improving inhalation deposition on the delivery and Dry Powder formulations efficiency.

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Breast cancer is the most frequent malignancy in women. This work focuses on developing deformable liposomes as a potential carrier for breast cancer treatment and studying the impact of improving dermal permeation on the efficacy and targeting of liposomes. Raloxifene (RXF), an oestrogen antagonist, was used as a model drug.

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The rise of coronavirus (COVID-19) cases worldwide has driven the need to discover and develop novel therapeutics with superior efficacy to treat this disease. This study aims to develop an innovative aerosolized nano-formulation of favipiravir (FPV) as an anti-viral agent against coronavirus infection. The local delivery of FPV nanoparticles (NPs) via nebulization ensures that the drug can reach the site of infection, the lungs.

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Atorvastatin (ATO) is of the statin class and is used as an orally administered lipid-lowering drug. ATO is a reversible synthetic competitive inhibitor of 3-hydroxy-3-methyl-glutaryl-CoA (HMG-CoA) reductase thus leading to a reduction in cholesterol synthesis. It has recently been demonstrated that ATO has different pharmacological actions, which are unrelated to its lipid-lowering effects and has the ability to treat chronic airway diseases.

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Simvastatin (SV) is widely used as a lipid-lowering medication that has also been found to have beneficial immunomodulatory effects for treatment of chronic lung diseases. Although its anti-inflammatory activity has been investigated, its underlying mechanisms have not yet been clearly elucidated. In this study, the anti-inflammatory and antioxidant effects and mechanism of simvastatin nanoparticles (SV-NPs) on lipopolysaccharide-stimulated alveolar macrophages (AMs) NR8383 cells were investigated.

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Aim: Current inhaled treatments are not adequate to treat all lung diseases. In this study, a promising nanotechnology has been developed to deliver a potential anti-inflammatory and muco-inhibitory compound, simvastatin, for treatment of inflammatory lung diseases via inhalation.

Materials & Methods: Simvastatin nanoparticles (SV-NPs) encapsulated with poly(lactic-co-glycolic) acid were fabricated using the solvent and anti-solvent precipitation method.

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Introduction: Simvastatin (SV) is a drug from the statin class, currently used orally as an anti-cholesterolemic drug. It inhibits the 3-hydroxy-3-methyl-glutaryl-Coenzyme A (HMG-CoA) reductase to reduce cholesterol synthesis. Recently, it has been found that SV also has several other protective pharmacological actions unrelated to its anti-cholesterol effects that might be beneficial in the treatment of chronic airway diseases.

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Purpose: The aim of this study is to evaluate the biological effects of Calu-3 epithelial cells in response to the delivery of simvastatin (SV) via solution pressurized metered dose inhaler (pMDI).

Methods: SV pMDI was aerosolised onto Calu-3 air-interface epithelial cells using a modified glass twin stage impinger. The transport of SV across Calu-3 cells, mucus production, inflammatory cytokines production i.

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Synopsis of recent research by authors named "Alaa S Tulbah"

  • - Alaa S Tulbah's recent research predominantly focuses on the development of innovative drug delivery systems, particularly utilizing nanotechnology to enhance the solubility, bioavailability, and targeted delivery of various therapeutic agents for conditions such as cancer, depression, diabetes, and psoriatic diseases.
  • - Key findings from Tulbah's studies include the successful formulation of nintedanib and dasatinib-loaded nanoparticles, showcasing improved therapeutic efficacy against idiopathic pulmonary fibrosis and colorectal cancer, respectively, by addressing solubility issues inherent in these drugs.
  • - Additionally, Tulbah has contributed to advancements in brain-targeting drug delivery through intranasal systems for medications like venlafaxine and ziprasidone, which aim to provide faster onset of action and reduce systemic side effects in the treatment of depressive and psychotic disorders.