bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of Iraqi Spinach Leaves (Phytochemical and Protective Effects Against methotrexate-Induced hepatotoxicity in rats)
Authors: K. Abdul-Wahab Farah , Z. Abdul Jalil Thukaa 
Published: September 2022

Spinach, Spinacia oleracea L is a popular vegetable belonging to the family Chenopodiaceae. This study was concerned with extraction of compounds in Iraqi spinach leaves, preliminary phytochemical evaluation, identification of two biological important flavonols, quercetin and kaempferol in spinach leaves and evaluation of the protective effect of aqueous spinach extract on methotrexate (MTX) induced hepatotoxicity in rats. The percentage yield of extraction procedure, identification of spinach by chemical tests and identification of flavonols by thin layer chromatography (TLC) and High performance liquid chromatography (HPLC) were fully described in this study. The results indicate that the percentage of quarcetin in spinach leaves is more than the percentage of kaempferol in the same plant. The rats were divided into three groups as control, MTX group following a single dose of MTX (20 mg/kg, i.p) saline was administered for 5 days and the MTX+aqueous spinach extract group were rats received 200mg/kg orally of aqueous spinach extract 7days before and 5 days after MTX treatment. MTX administration increased the MDA and decreased GSH, ALP while these changes were reversed in aqueous spinach extract treated group. Histological changes observed in MTX treated group was improved by aqueous spinach extract treatment. The protective effect of aqueous spinach extract against MTX- induced hepatotoxicity could be attributed to the combined effects of its constituents.
Key words: Spinach, Kaempherol , Quercetin , Methotrexate, Oxidative stress.
The Protective Effect of Honey Against Amikacin- induced Nephrotoxicity in Rats
Authors: R. Abd Ali Abeer , H. Ismail Sajida 
Published: September 2022

Drug â€“induced nephrotoxicity is an important cause of renal failure. Aminoglycoside antibiotics, such as amikacin, which causes ototoxicity and nephrtotoxicity as a main side effects, this is focused on the use of natural materials as antioxidants against the toxic oxidative action that exert a cell damaging effect. The most important one of these materials is the honey. The aim of this work is to evaluate the antioxidant effects of honey against amikacin â€“ induced nephrotoxicity.18 albino rats divided into 3 groups (6 rats per each group), group 1 received I.P daily dose of normal saline (control), group 2 received (35 mg/kg/day) I.P dose of amikacin ,and group 3 received (35mg/kg/day) of amikacin I.P dose in combination with oral dose of honey(500mg/kg/day) for 2 weeks. All animals (at 15th day) were anesthetized by ether and sacrificed; blood samples were collected for the subsequent measurement of the serum creatinine, urea, malneldehyde (MDA) and glutathione (GSH) while an isolated kidney was kept in 10 % of formaldehyde for the histopathological examination. This study showed that amikacin causes nephrotoxicity represented by elevation of serum level of creatinine and urea, MDA and a decrease in the serum glutathione level. While the administration of honey in combination with amikacin reduced the nephro-toxic effect of amikacin that represented by a reduction of the serum creatinine and urea, MDA and elevation of glutathione levels with improvement of the kidney histological findings in comparison with group 2.This study concluded that, honey decreased nephrotoxicity induced by amikacin through interference with the oxidative stress process, i.e. honey acts as free radical scavenger.
Key words:amikacin, honey, nephrotoxicity, oxidative stress.
Preparation and Evaluation of Chloramphenicol as Thermosensitive Ocular in- situ Gel
Authors: K. Ali Allah Ali , N. Abd-Al Hammid Shaimaa 
Published: September 2022

The purpose of this study was to develop poloxamer-based in-situ gel of chloramphenicol aiming to increase bioavailability and prolong corneal contact time, controlling drug release, and enhancing ocular bioavailability. The in-situ gel was prepared using different concentrations of poloxamer 407 combined with hydroxypropyl methyl cellulose (HPMC) or carbapol 940 to achieve gelation temperature about physiological temperature and improve rheological behavior and gelling properties of poloxamer gel. The prepared formulations were evaluated for their appearance, pH, and sol-gel transition temperature. The formulations F2, F3, and F5 have a gelation temperature within the accepted range 35-370C and were evaluated for their isotonicity, rheological studies, ocular irritation test, sterility and release studies. The selected formulations (F2,F3, and F5) isotonic, pseudoplastic, non irritant, pass sterility test, and the in vitro release demonstrated a diffusion-erosion controlled release of chloramphenicol over a period of 4 hr., 6 hr., and 6 hr. respectively.
Key words: Chloramphenicol, in-situ gel, ocular dosage form, poloxamer.
Efficacy, safety and Cardiovascular Disease Risk Lowering Ability of ACE Inhibitors, B-Blockers and Combination Antihypertensive Drug Regimes in Iraq
Authors: M. Sulaiman Dlveen , J.Al-Shamma Kassim , N.Al-Hassani Ansam 
Published: September 2022

Hypertension is a major health problem throughout the world because of its high prevalence and its association with increased risk of cardiovascular diseases. It is defined as systolic blood pressure â‰¥ 140 mmHg and/or diastolic blood pressure â‰¥ 90 mmHg. The aim of this study was to compare the efficacy, safety and cardiovascular disease risk lowering ability, of three antihypertensive drug regimens.
A retrospective study was carried out on 66 hypertensive patients, divided in to three groups based on their antihypertensive drug regimens (ACE inhibitors, Î²-blockers treated and combination antihypertensive therapy, the combination therapy consist of two or more of the following antihypertensive drugs ACE inhibitor diuretic, CCBs Î²-blockers), the study also included 22 healthy individuals. Duration of treatment was 2-10 years. Blood pressure and pulse rate were measured and blood sample was collected, and the serum processed for the measurement of lipid profiles, fasting blood glucose, liver function test, kidney function test, electrolytes, and C-reactive protein. Cardiovascular disease risk lowering ability have been assessed by cardiovascular risk assessor computer program.
The results shows that systolic and diastolic blood pressure in the three antihypertensive drug regimens treated group, were significantly higher than systolic and diastolic blood pressure in control healthy individuals indicating that these antihypertensive drug regimens were unable to reach hypertension treatment target, although ACE inhibitors and combination antihypertensive drugs reach minimal hypertension treatment target.
ACE inhibitors regimen did not show any significant adverse effects on lipid profiles and blood glucose, while Î²-blockers regimen adversely affected it. Most predominant adverse effects that appear, in ACE inhibitors treated group were dry cough and taste disturbances, in Î²-blockers treated group were bradycardia and sleep disturbances while in combination therapy treated group were according to the combination used. In combination containing thiazide diuretics, disturbed lipid profiles and hyperurecemia were predominant and in combination containing calcium channel blockers constipation and peripheral edema were predominant.
Coronary heart disease and stroke risk percentage in all three antihypertensive drug regimens were significantly higher compared to control healthy individuals group, and all three antihypertensive drugs regimens have the same cardiovascular risk lowering ability.
In conclusion the results indicated that all three antihypertensive drug regimens used were not efficient enough to reach hypertension treatment target, the combination therapy and ACE inhibitors regimens were only capable to reach minimal hypertension treatment target which is â‰¤150/90 mm Hg.
Key words: ACE inhibitors, B blockers, Hypertension.
Study the Effect of Folic Acid as A supplement on Selected Oxidative Stress and Biochemical Parameters in First Trimester of Pregnancy
Authors: A. Mehde Atheer , F. Ali Karima , A. Mehdi Wesen 
Published: September 2022

Folic acid modulates several disorders in humans, pregnancy mostly because of the mitochondria-rich placenta, is a condition that favors oxidative stress.Transitional metals, especially iron, which are particularly abundant in the placenta, are important in the production of free radicals. Adenosine deaminase (ADA), an enzyme essential for the differentiation of lymphoid cells, has been used for monitoring diseases with altered immunity. In the present study we investigated the effect of regular and irregular administered folic acid in the first and second trimester of pregnancy to be compared with non-pregnant women ,and also the effect of regular and irregular using of folic acid supplement on oxidative stress parameters and several biochemical features in first trimester pregnant women. Methods :The Hemoglobin ,Random plasma glucose, transferrin, iron, adenosine deaminase in addition to antioxidants(Total antioxidant capacity (TAC), Glutathione (GSH), Glutathione peroxidase (GSH-Px), Glutathione reductase (GSH-R) and Superoxide dismutase (SOD)), had been measured in studied groups[non pregnant women],group B-I[first trimester], group B-II[second trimester who used folic acid supplementation regularly 5 mg daily] and group B-III [second trimester who used folic acid supplementation irregularly].Results: The level of transferrin, adenosine deaminase (ADA), malondialdehyde (MDA) and uric acid showed significant increase by comparing group B-II and group B-III] ,also when compared to [non pregnant women],group B-I.Iron, Total antioxidant capacity (TAC), Glutathione (GSH), Glutathione peroxidase (GSH-Px), Glutathione reductase (GSH-R) and Superoxide dismutase (SOD) showed significant decrease in group B-II and group B-III when compared to [non pregnant women and group B-I. In conclusion irregular supplementation of folic acid increased indicators of lipid peroxidation in first trimester of pregnancy. Therefore, this regimen of supplemental folic acid may provide excessive amounts of folic acid and appears to increase the risk of oxidative stress.
Key words: Folic acid, lipid peroxidation, adenosine deaminase ,antioxidants, transferrin, Iron and pregnancy .
Some Hormonal Changes in Women with Primary Hypothyroidism under the Effect of Thyroid Hormone Replacement Therapy
Authors: S. Jabbar Zainab , J. Al-Shamma Kassim , A. Taher Mohammad 
Published: September 2022

Hypothyroidism has been associated with disorders of glucose and insulin metabolism..The present study was designed to evaluate the possible change in some hormones (free testosterone, estradiol, prolactin, insulin), glucose and homeostasis model assessment of insulin resistance (HOMA-IR) in women with primary hypothyroidism under thyroid hormone replacement therapy .This cross-sectional study was carried on 62 hypothyroid patients×³ women and 22 healthy women as control group at the specialized center for endocrinology and diabetes, AL-Rasafa Directorate of Health Baghdad, with age range(15-60 years), diagnosed as having primary hypothyroidism on thyroxine replacement therapy with duration not less than four months. Each of the selected patients women and the healthy control were distributed into two groups, normal cyclic and postmenopausal. Blood samples were collected to measure thyroid stimulating hormone(TSH), total thyroxine (TT4) , total triiodothyronine (TT3), free thyroxine(fT4), free testosterone (FT), estradiol(E2) ,prolactin(PRL), insulin , fasting blood glucose( FBG), homeostasis model assessment-insulin resistance(HOMA-IR). The results showed that the majority of hypothyroid women (older than 40 years and obese) had high levels of TSH in normal cyclic and postmenopausal patients women. A significant increase in f T4 and TT4 in postmenopausal patients women when compared with postmenopausal control group f T4 and TT4. A significant increase in free testosterone and FBG and significant decrease in TT3 and E2 levels in normal cyclic patients women when compared with normal cycle control group. High prolactin levels were found in the normal cyclic patients women in comparism with control group. Higher levels of insulin were found in normal cyclic and postmenopausal patients women as compared with control groups, however insulin was not statistically different. Significant increase in HOMA-IR of normal cyclic patients women compared with control group.
In conclusion, elevation of TSH levels in postmenopausal patients women were less than in normal cyclic patients women this explain the increase levels of thyroxine hormone(T4)in this group of patients as compared with both control group and normal cyclic patients women. Some hormonal changes were found in normal cyclic hypothyroid patients women as compared with control group.The alteration of these hormones disappear when euthyroid state restored, so adjustment of thyroxine therapy is required in these patients.
Key words: Hypothyroidism , Thyrid replacement therapy.
Physicochemical Factors Affected the Partial Purified Lipase Activity of Acinetobacter baumannii "local isolates"
Authors: J. Mohammed Huda 
Published: September 2022

Microbial lipases today occupy a place of prominence among biocatalysts owing to their ability to catalyze awide variety of reactions in aqueous and non- aqueous media, A.baumannii were isolated from different clinical specimens from hospitalized patients from Baghdad hospitals and were detected by biochemical tests and API20E system. The percentage of isolation was (16.6%), A. baumannii is an increasingly multidrug â€“ resistant (MDR), it showed high level of resistant to Ceftriaxon, Colistin, Piperacillin, Co-trimoxazol, Tertracycline, Carbenicillin, Amoxicillin, Penicillin G, Gentamicin and Ceftazidim , wherease the isolates were highly sensitive to Imipenem, Ciprofloxacin, Meropenem, Amikacin, and Cefotaxime.
The isolated strians of A.baumannii were screened for the production of lipase by using Rhodamine B agar media. one of the isolated strians exhibited a greater clear zone than the others, indicated higher lipase activity.
The lipase in present study was partially purified by ammonium sulphate at the concenterations of 30% and 80%, the 30% ammonium sulphate showed higher activiy of the enzyme than 80% in which the enzyme activity was slightly decreased indicating that the better purification was at the 30% concenteration of ammonium sulphate.Various physicochemical parameters such as pH, temperature and metal ions were studied in order to determine the optimum conditions for lipase production.
The production of lipase by A. baumannii was optimum at 35Â°C, pH 7.0 and was enhanced by the Ca++ and Na+ wherease inhibited by Zn++ ions.
Key words : Acinetobacter baumannii, Lipase enzyme, Partial purification.
Synthesis of new Conjugates of some NSAIDs with Sulfonamide as Possible Mutual Prodrugs using Tyrosine Spacer for Colon Targeted Drug Delivery
Authors: L. Abdulhadi Shayma , J. Qasir Ahlam , A. Abdul Razzak Nadeem 
Published: September 2022

The purpose of this research work is to synthesize conjugates of some NSAIDs with sulfamethoxazole as possible mutual prodrugs to overcome the local gastric irritation of NSAID with free carboxyl group by formation of ester linkage that supposed to remain intact in stomach and may hydrolyze in intestine chemically or enzymatically; in addition to that attempting to target the synthesized derivative to the colon by formation of azo group that undergo reduction only by colonic bacterial azo reductaze enzyme to liberate the parent compound to act locally (treatment of inflammation and infections in colon).
Key words: Mutual prodrug, Ester linkage, Azo bond, Colon targeting
Synthesis and Antimicrobial Evaluation of New 6 and7 Substituted Derivatives of Coumarin
Authors: A. Muften Rouaa , Y.Saour Kawkab , A.Razzak Mahmood Ammar 
Published: September 2022

A series of benzohydrazide derivatives attached to coumarin moiety at position 6 and 7 have been synthesized. The reaction of coumarin derivatives (coumarin I and II) with p-nitrophenyl hydrazine yield Schiff bases (compound1a and IIa).These Schiff bases were refluxed with benzoyl chloride to give benzohydrazide derivatives of coumarin substituted at its 6 or 7 nucleus position (Ia1 and IIa1).The reaction and the purity of the products were checked by thin layer chromatography (TLC). The structures of the final compounds and their intermediates were confirmed by their melting points, infra red spectroscopy, and elemental microanalysis(CHN).
Compounds (Ia1 and IIa1) were evaluated for their preliminary antibacterial and antifungal activities. Compound (IIa1) has good antibacterial activity against Staphylococcus aureus other than bacterial species, and was equivalent to ofloxacin as (standard drug).
Key word: Coumarin, Schiff base, benzohydrazide derivatives, antimicrobial activity.
Spectrophotometric Determination of Clonazepam in Pure and Dosage forms using Charge Transfer Reaction
Authors: Hadi Hind 
Published: September 2022

A rapid, sensitive and without extraction spectrophotometric method for determination of clonazepam (CLO) in pure and pharmaceutical dosage forms has been described. The proposed method was simply depended on charge transfer reaction between reduced CLO (n-donor) and metol (N-methyl-p-aminophenol sulfate) as a chromogenic reagent (Ï€- acceptor). The reduced drug, with zinc and concentrated hydrochloric acid, produced a purple colored soluble charge-transfer complex with metol in the presence of sodium metaperiodate in neutral medium, which has been measured at Î»max 532 nm. All the variables which affected the developed and the stability of the colored product such as concentration of reagent and oxidant, temperature and time of reaction were investigated and optimized. The linearity of the method was observed within a concentration range 5-40 Î¼g ml-1 CLO and with a correlation coefficient not less than 0.998, while the molar absorbitivity and sandell sensitivity were 3.473Ã—103 L.mole-1.cm-1 and 0.0909 Î¼g cm-2 respectively. The present work includes also the usage of the Benesiâ€“Hildebrand equation for the evaluation of the association constant and molar absorptivity of the colored complex .Finally the proposed method was successfully applied for the determination of CLO in tablets.
Keywords: Spectrophotometric ; Clonazepam ; Metol ; Charge-transfer reaction.
Synthesis of some Novel Nitrogenous Heterocyclic Compounds with Expected Biological Activity as Antimicrobial and Cytotoxic Agents
Authors: S. Farhan Mohammed , Y. Saour Kawkab 
Published: September 2022

This study includes synthesis of some nitrogenous heterocyclic compounds linked to amino acid esters or heterocyclic amines that may have a potential activity as antimicrobial and/or cytotoxic. Quinolines are an important group of organic compounds that possess useful biological activity as antibacterial, antifungal and antitumor .8-Hydroxyquinoline (8-HQ) and numerous of its derivatives exhibit potent activities against fungi and bacteria which make them good candidates for the treatment of many parasitic and microbial infection diseases.
These pharmacological properties of quinolones aroused our interest in synthesizing several new compounds featuring heterocyclic rings of the quinoline derivatives linked to amino acid ester or heterocyclic amine with the aim of obtaining a pharmacologically active compounds.O-alkylation has been done on( 8-hydroxyquinoline ) to get (O-alkylated ester) derivatives which are deesterfied to get acetic acid derivatives, then coupled with amino acid that have protected carboxyl group (amino acid esters) or heterocyclic amine by using conventional solution method for peptide synthesis as a coupling method.
The proposed analogues were successfully synthesized and the processing of the reactions confirmed by TLC ,the synthesized analogues with the proposed structures as they were characterized and proved by melting point, infrared spectroscopy (IR) and elemental microanalysis.
The tested analogues showed cytotoxic activity on the HEp-2 cell line (tumor of larynx) with inhibitory concentration percent of (IC %) range (32.43 % - 49.55%) and showed that the tested compounds had variable antimicrobial activities against selected bacteria and yeast when compared with selected standard drugs.
Keywords: Quinolones, 8-hydroxyquinoline , N-heterocycles biological activity.
Formulation and Evaluation of Nystatin Microparticles as a Sustained Release System
Authors: T.Ismail Sara , M. Al-Kotaji Myasar , A. Khayrallah Ahlam 
Published: September 2022

Nystatin is the drug of choice for treatment of cutaneous fungal infections with main disadvantage that is the need for multiple applications to achieve complete eradication which may reduce patient compliance. Microparticles offer a solution for such issue as they are one of sustained release preparations that achieve slow release of drug over an extended period of time. The objectives of this study were to fabricate nystatin-loaded chitosan microparticles with the ultimate goal of prolonging drug release and to analyze the influence of polymer concentration on various properties of microparticles. Microparticles were prepared by chemical cross-linking method using glutaraldehyde as cross-linking agent. Five formulas, namely N1C1, N1C2, N1C3, N1C4 and N1C5, were prepared and the effect of drug to polymer ratio was studied with respect to drug loading, encapsulation efficiency, particle size and morphology. Furthermore the prepared microparticles were subjected to various physico-chemical studies, such as drug- polymer compatibility by Fourier Transform Infrared Spectroscopy (FTIR) and in-vitro drug release characteristics. Microparticles obtained from N1C1, N1C2 and N1C3 formulas were regular in shape with mean particle size ranging between 1Âµm and 10Âµm. N1C5 formula was resulted in particles with irregular shape while N1C4 showed a blend of microparticles and deformed particles. The effect of chitosan concentration on drug loading and entrapment efficiency was studied. The results showed increment in these parameters that was directly proportional to the increment in polymer concentration. Percentage yield showed a significant increment which was related to the increment in the ratio of chitosan used during the study. FTIR results showed no interactions between nystatin and chitosan. DSC studies proved the crystalline nature of nystatin and chitosan. On other hand, the thermogram of loaded microparticles showed the absence of endothermic peak corresponding to nystatin which may indicate the loss of the crystalline nature of the drug presented inside the microparticles. In- vitro release studies resulted in 95.6% release of nystatin for N1C1 after 15 hours. N1C1 appeared to be promising in formulating microparticles that provide nearly complete release of the drug within15 hours. This formula can be selected in future work to be formulated as topical gel that prolongs the release of nystatin.
Keywords: Nystatin, Chitosan, Glutaraldehyde, Chemical cross-linking.