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Nevine Shawky Abdelmalak

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https://www.readbyqxmd.com/read/26392248/leflunomide-biodegradable-microspheres-intended-for-intra-articular-administration-development-anti-inflammatory-activity-and-histopathological-studies
#1
COMPARATIVE STUDY
Doaa Ahmed El-Setouhy, Nevine Shawky Abdelmalak, Shady E Anis, Dina Louis
Leflunomide, the disease-modifying anti-rheumatic drug was formulated as microspheres for prolonged drug release in the form of intraarticular injection. Eight formulations were developed using three biodegradable PDLG polymers (lactide/glycolide copolymer) and polycaprolactone (PLC) at two drug:polymer ratios (1:2 and 1:4). Solvent evaporation method was employed using polyvinyl alcohol or hydropxypropyl methylcellulose as stabilizers. Formulations were assessed for encapsulation efficiency, yield, particle size, release pattern and SEM...
November 30, 2015: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/26086847/bioenhanced-sublingual-tablet-of-drug-with-limited-permeability-using-novel-surfactant-binder-and-microencapsulated-polysorbate-in-vitro-in-vivo-evaluation
#2
Doaa Ahmed El-Setouhy, Emad B Basalious, Nevine Shawky Abdelmalak
Formulation of sublingual tablets of drugs with limited permeability poses a great challenge due to their poor absorption. In this study, bioenhanced sublingual tablets (BESTs) of zolmitriptan were prepared using novel surfactant binder (Pluronic® p123/Syloid® mixture) to enhance tablet disintegration and dissolution. Microencapsulated polysorbate 80 (Sepitrap™ 80) were included in the composition of BESTs to enhance the drug transport through the sublingual mucosa. Tablets were evaluated for in vitro/in vivo disintegration, in vitro dissolution and ex vivo permeation...
August 2015: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/26004128/tretinoin-loaded-liposomal-formulations-from-lab-to-comparative-clinical-study-in-acne-patients
#3
Salwa Abdel Rahman, Nevine Shawky Abdelmalak, Alia Badawi, Tahany Elbayoumy, Nermeen Sabry, Amany El Ramly
Topical tretinoin is the most commonly used retinoid for acne. However, its irritative potential on the applied area and the barrier properties of the stratum corneum limit its use. The objective of the present study was to formulate tretinoin liposomal gel to obtain a formula with lower skin irritation potential and greater clinical effect. A statistical 2(4) factorial design was adopted. Sixteen formulae prepared and were properly evaluated. A candidate formula (F13G) prepared with 0.025% tretinoin, phospholipid- cholesterol-dicetylphosphate (9:1:0...
May 2016: Drug Delivery
https://www.readbyqxmd.com/read/24670094/formulation-of-tretinoin-loaded-topical-proniosomes-for-treatment-of-acne-in-vitro-characterization-skin-irritation-test-and-comparative-clinical-study
#4
Salwa Abdel Rahman, Nevine Shawky Abdelmalak, Alia Badawi, Tahany Elbayoumy, Nermeen Sabry, Amany El Ramly
Tretinoin (TRT) is a widely used retinoid for the topical treatment of acne, photo-aged skin, psoriasis and skin cancer which makes it a good candidate for topical formulation. Yet side effects, like redness, swelling, peeling, blistering and, erythema, in addition to its high lipophilicity make this challenging. Therefore, the aim of this study was the development of TRT-loaded proniosomes to improve the drug efficacy and to increase user acceptability and compliance by reducing its side effects. Nine formulae were prepared according to 3(2) factorial design and were evaluated for their morphology, vesicle size, entrapment efficiency (EE %), and% of drug released after 5 h...
2015: Drug Delivery
https://www.readbyqxmd.com/read/24601826/bumadizone-calcium-dihydrate-microspheres-compressed-tablets-for-colon-targeting-formulation-optimization-and-in-vivo-evaluation-in-rabbits
#5
Samia A Nour, Nevine Shawky Abdelmalak, Marianne J Naguib
The objective of this study was the development of a colon-targeted microspheres which were compressed into tablets containing the non-steroidal anti-inflammatory bumadizone calcium hemihydrate. [corrected]. A 3(2) full factorial design was adopted for the evaluation of the prepared microspheres. The effect of two independent variables namely polymer type (Eudragit RS100, ethyl cellulose and cellulose acetate butyrate), and drug: polymer ratio (1:1, 9:1 and 18:1) was studied on the entrapment efficiency and in vitro drug release for 12 h...
May 2015: Drug Delivery
https://www.readbyqxmd.com/read/21107771/formulation-of-a-novel-oxybenzone-loaded-nanostructured-lipid-carriers-nlcs
#6
Rania A Sanad, Nevine Shawky Abdelmalak, Tahany S Elbayoomy, Alia A Badawi
The objective of the current study was to formulate oxybenzone into nanostructured lipid carriers (NLCs) to enhance its sunscreening efficacy and safety. NLCs of oxybenzone were prepared by the solvent diffusion method. A complete 2(3) factorial design was used for the evaluation of the prepared oxybenzone NLCs. The study design involves the investigation of the effect of three independent variables namely liquid lipid type (Miglyol 812 and oleic acid), liquid lipid concentration (15% and 30%), and oxybenzone concentration (5% and 10% with respect to total lipids) on the particle size (p...
December 2010: AAPS PharmSciTech
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