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14 04, 2019

Synthesis, Characterization, and Antimicrobial Evaluation of New N-Phenyl Cinnamaide Derivatives Linked to Aspirin and Ibuprofen

2019-04-14T09:08:08+00:002019-04-14|

Assistant Lecturer Ameer Hussein Kadhim & Assistant Lecturer Haider Jabbar Madloul Abstract Objective:The objective of this study was to synthesize phenylcinnamamide (substituted acetanilide chalcone) derivatives linked to aspirin and ibuprofen with potential antibacterial and antifungal activity. Methods:Substituted acetanilide compounds were reacted with different arylaldehydes through Claisen-Schmidt condensation in the presence of KOH. They formed differently substituted acetanilide chalcones (1a-e) which are linked to aspirin and ibuprofen through an ester linkage to form compounds (2a-j) using ethyl chloroformate (ECF) as a catalyst. Results:The synthesized compounds have been characterized by elemental analysis, Fourier transform infrared and1 H-nuclear magnetic resonance spectroscopy. An antibacterial evaluation [...]

14 04, 2019

Preclinical Evaluation of Radioiodinated Quinoxaline Derivative as a Possible Brain Imaging Agent

2019-04-14T09:06:29+00:002019-04-14|

Assistant Prof. Dr. Ismail Taha Ibrahim Abstract 4-{(4-Methylphenyl)glycyl}-3,4-dihydroquinoxalin-2(1H)-one (QIN) was prepared from 4-(2-chloroacetyl)- 3,4-dihydroquinoxalin-1(1H)-one). ¹²⁵I-QIN was prepared by electrophilic substitution using Chloramine- T as an oxidizing agent. The highest labeling yield, 94%, was obtained under the following conditions: pH 7, 15 min, 100 μg of QIN, 50 μg of Chloramine-T, and carrier-free Na¹²⁵I. The labeled compound was stable for up to 12 h post labeling. A biodistribution study of ¹²⁵I-QIN in mice showed that its brain uptake was about 5.1% at 30 min post injection and remained on this level up to 1 h. As compared to commercially used radiopharmaceuticals for [...]

14 04, 2019

Intranasal Drug Delivery of Iodohaloperidol as a Radiopharmaceutical Brain Imaging Agent

2019-04-14T09:04:45+00:002019-04-14|

Assistant Prof. Dr. Ismail Taha Ibrahim Abstract Haloperidol (HP) is a dopamine blocking agent. HP was radiolabeled with 125I using direct electrophilic substitution. Different HP formulations such as intravenous solution (VS), intranasal solution (NS) and intranasal microemulsion (NME) have been prepared. Optimum labeling yield of 125I-HP was obtained 93.42±1.53%. Isopropylmyristate oil (10%), Tween 80 (30%), propylene glycol (15%) and aqueous phase (45%) were used for NME preparation. Using Swiss Albino mice, the % brain uptake were 1.4±0.2, 4.3±0.2 and 5.7±0.4% for VS, NS and NME, respectively. 125I-HP in NME formula showed superiority as drug delivery system for brain imaging. KeywordsHaloperidol · 125I · [...]

14 04, 2019

The Cytoprotective Activity of Aqueous Green Tea Extract on Metronidazole or Tinidazole Induced Genotoxicity in Mice.

2019-04-14T09:02:59+00:002019-04-14|

Prof. Intesar Tarik Numan Abstract Objective:The study was designed to evaluate the genoprotective effect of green tea extract against genotoxicity induced by metronidazole and tinidazole. Methods:A total of 36 mice were used, for each experiment. The animals were allocated into six groups: Group I - negative control administered distilled water; Group II - healthy mice treated with metronidazole alone, Group III - healthy mice treated with tinidazole alone, Group IV - healthy mice administered green tea extract alone, Group V - healthy mice administered of metronidazole anddd then green tea extract was administered, and Group VI - healthy mice administered of [...]

14 04, 2019

Nephroprotective Effects of Artichoke Extract against 5- Fuorouracil Induced Nephrotoxicity in Rats: A Comparative Study with Telmisartan.

2019-04-14T09:01:12+00:002019-04-14|

Prof. Intesar Tarik Numan Abstract  The present study was designed to evaluate the nephroprotective effects of methanol extract of Artichoke as a comparative study with telmisartan against 5-FU induced nephrotoxicity in Wister rats. Thirty Wister rats were randomly divided into five groups: Ι, negative control receiving normal saline (2 ml/kg) orally for 14 successive days; ΙΙ, negative control receiving DMSO (2 ml/kg) orally for 14successive days; ΙΙΙ, positive control receiving normal saline (2ml/kg/day) orally for 14 days, and subsequently received 5- Fluorouracil (5-FU) (150mg in 2ml normal saline per kg body weight) ) single dose by intraperitoneal injection on the day [...]

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