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Antibacterial and therapeutic effects of vancomycin-resistant Staphylococcus aureus bacteriocin (VRSAcin) in the treatment of VRSA skin infection in mice
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Vancomycin Staphylococcus aureus (VRSA) is a strain of S. aureus that is considered the main cause of bacterial skin and soft tissue infections. It has acquired resistance to vancomycin and represents a therapeutic challenge. The current study aimed to compare the possible therapeutic effects of VRSA bacteriocin (VRSAcin) on the treatment of skin infection in mice with those of an antibiotic (linezolid). The results showed that of the fifty swabs obtained from human skin wounds. One isolate was selected for VRSAcin extraction depending on its antibiotic resistance using an antibiotic susceptibility test.An agar well diffusion test was used to determine bacteriocin’s antibacterial activity, as well as its a minimum inhibitory concentration, minimum bactericidal concentration, and antibiofilm efficiency against gram-positive and gram-negative bacteria that were resistant to many medicines. The freshly developed antibacterial substance VRSAcin shows promise. Bacteriocin from VRSA was extracted and studied the optimal conditions for the Production following Purification of bacteriocin by ammonium sulfate precipitation followed by cation-exchange chromatography. The molecular weight of bacteriocin about (29 kDa) were determined by Sodium Dodecyl Sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The typical conditions for the production of VRSAcin include a pH of 7 and a temperature of 37 ◦C for 48 h. In mice, VRSA-contaminated wounds revealed severe tissue distraction and inflammation that extended to the hypodermis, while VRSA-treated skin showed mild changes and localized lesions to the epidermis and upper dermis. The skin of linezolid ointment-treated mice showed moderate to severe changes. In conclusion, VRSA strain infections in human burned skin were more common than expected. In vivo studies in mice indicated that wounded skin infected with VRSA can be treated with VRSAcin as an antibacterial agent that promotes healing processes with obvious superiority to linezolid ointment. As a result, the VRSA develops bacteriocins that are appropriate for regulating AMR, Gram-positive and Gram-negative bacteria, and may be useful in wound dressings.

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Publication Date
Wed Jul 01 2020
Journal Name
Biochemical And Cellular Archives
Histopathological changes in liver induced by piroxicam administration in adult male albino mice mus musculus
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Publication Date
Mon Oct 05 2015
Journal Name
Journal Of Natural Sciences Research
Immunomodulatory of Cordia myxa (L.) aqueous extract fruit in immunized mice with hydatid cyst fluid
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Human cystic echinococcosis caused by Echinococcus granulosus is one of most important and widespreadparasitic zoonoses in the world. The present study was aimed to identify the immunomodulatory activity ofaqueous extract of Cordia myxa fruit since this plant considers one of medically important plants, which is widely used for treatment of numerous diseases, that correlate with the effectiveness of immunized by hydatid cyst fluid antigen HCFAg. Forty Balb/c mice were divided into equal groups, first group was immunized with HCFAg, the second group was treated with aqueous extract of C. muxa fruit, the third group was immunized and treated, the fourth group was as a control. Delayed type hypersensitivity (DTH), Mitotic index (MI) and histop

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Publication Date
Sun Mar 13 2011
Journal Name
Baghdad Science Journal
Effect of crude alcoholic celery (Apium graveolens) leaves extract on fertility in albino female mice
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Sixty albino female mice were used in this experiment to study the possible effect of the crude alcoholic extract of the celery leaves on their fertility. These animals were randomly and equally divided into three experimental groups (20 females/group). The first and second groups were orally given a daily dose of 500 and 1000 mg/kg body weight, respectively, of the crude alcoholic extract, while the third group (control) was similarly treated, at the same time, with 0.1 ml/gm body weight of physiological saline for comparison. The treatment, however, lasted for 25 consecutive days. On day 26, after treatment was stopped, the life body weight of all animals was recorded before sacrificing the animals. Thereafter blood

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Publication Date
Fri Sep 29 2023
Journal Name
Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
Protective Effect of Cranberry Extract against Cisplatin-Induced Nephrotoxicity by Improving Oxidative Stress in Mice
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   Cranberry (Vaccinium macrocarpon) is a North American natural fruit. consumed as food and used for health promotion and prevention of various diseases. Aim. The present study was designed to evaluate the protective effect of cranberry fruit extract on nephrotoxicity induced by cisplatin in mice by measuring selected oxidative stress markers. Methods. Twenty-eight male albino mice were used in this study. The animals were divided into 4 groups as follows: Group I [Negative Control]/orally-administered normal saline for 7 successive days; Group II [Orally-administered cranberry fruit extract alone (200 mg/kg) for 7 successive days; Group III/Mice IP injection with cisplatin (12mg/kg) on day 7 and; Group IV [Orally-administered cr

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Publication Date
Wed Mar 15 2023
Journal Name
Bionatura
Immune-protective effect of topical paquinimod administration against imiquimod-induced psoriasis-like inflammation in mice
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Psoriasis is a chronic, inflammatory condition that primarily affects the skin, hair, and joints and is associated with significant humanistic and economic consequences. This work induced psoriasis in mice using an imiquimod 5% cream, an immune response modifier that can cause psoriasis-like skin inflammation when given orally. Paquinimod is prepared as an ointment and has been topically given to mice before imiquimod application. In this study, albino mice were allocated into five groups and treated as follows: the control group received only a daily application of cream based on shaved back (62.5mg/2cm) with a daily topical dose of ointment for 14 consecutive days with the oral vehicle. The Imiquimod group received a daily topical

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Publication Date
Sat Feb 01 2014
Journal Name
American University Of Sharjah (aus) "second International Conference On Sustainable Systems And The Environmental (isse14)
Correlating BOD5 and COD of Sewage in Wastewater Treatment Plants; Case study Al- Diwaniyah WWTP in Iraq
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This study aims to establish an empirical correlation between biochemical oxygen demand (BOD5) and chemical oxygen demand (COD) of the sewage flowing in Al-Diwaniyah wastewater treatment plant. The strength of the wastewater entering the plant varied from medium to high. High concentrations of BOD5 and COD in the effluent were obtained due to the poor performance of the plant. This was observed from the BOD5 /COD ratios that did not confirm with the typical ratios for the treated sewage. To improve the performance of this plant, regression equations for BOD5 and COD removal percentages were suggested which can be used to facilitate rapid effluent assessment or optimal process control. The equations relating the percentage removal of

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Publication Date
Tue Feb 12 2019
Journal Name
Iraqi Journal Of Laser
Effects of Ho: YAG Laser (2100nm) in Prostate Tissue: An in vitro Study
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Benign prostate hyperplasia (BPH), non-cancerous enlargement of prostate, is the most prevalent disease entity in elderly men. BPH affects 40% of men after the age of 60year worldwide. BPH causes problems for patients with significant lower urinary tract obstructive symptoms, if not responding to medical therapy, surgical intervention is instituted. One method of the treatment of symptomatic BPH is laser prostatectomy. The understanding of tissue effects by laser radiation is very important for the safe clinical application of laser. Objective: study the 2100 nm Ho: YAG laser gross tissue effects in the prostate at different laser dose settings in an vitro model prostate tissue samples harvested from same specimen of open surgery prostat

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Publication Date
Sun Jun 30 2024
Journal Name
Acta Microbiologica Bulgarica
Toll-Like Receptor-4 Expression Level upon SARS-Cov2 Infection with and without Bacterial/Fungal Secondary and Co-Infection Among Iraqi Patients
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Cytokine storms are an excessive immune response triggered by severe viral infections, such as SARS-CoV2. Toll-like receptor 4 (TLR-4) is a key player in these storms. Secondary and co-infections can exacerbate the immune response, leading to amplified cytokine release and potentially severe disease outcomes. This review aims to evaluate the expression of TLR-4 in fungal and bacterial infections that are associated with and secondary to SARS-CoV2. The study collected specimens from 70 patients admitted to a Baghdad hospital’s ICUs and 35 healthy controls, aged 15-80 years, from June 2022 to April 2023. Re¬al-time RT-PCR was used for infection detection, while conventional methods were used to isolate patho¬genic microorganisms a

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Publication Date
Mon Oct 01 2012
Journal Name
Iraqi Journal Of Physics
The antibacterial effect of silver nanoparticles on some bacterial pathogens
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Nanoparticles are a special group of materials with unique features and extensive applications in diverse fields. The use of nanoparticles of some metals is a viable solution to stop infectious diseases due to the antimicrobial properties of these nanoparticles. The present work demonstrates the effect of silver nanoparticles (AgNPs) on the antibacterial activity of four different antibiotics (amoxicillin, ceftriaxone, chloramphenicol, and penicillin) against eleven Gram-positive and Gram-negative isolates. Disk diffusion method was used to determine the antibacterial activity of various classes of antibiotics in the absence and presence of sub-inhibitory silver nanoparticles of concentration (80 microgram/ml). A synergistic effect was o

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Publication Date
Wed Aug 30 2023
Journal Name
Baghdad Science Journal
Hepatocellular Carcinoma Prediction and early Diagnosis of Hepatitis B and C viral infection using miR-122 and miR-223 in a sample of Iraqi patients.
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Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related death. Therefore, it is critical for researchers to understand molecular biology in greater depth.  In several diseases including cancer, abnormal miRNA expression has been linked to apoptosis, proliferation, differentiation, and metastasis. Many miRNAs have been studied in relation to cancer, including miR-122, miR-223, and others. Hepatitis B and C viruses are the most important global risk factors for HCC. This study is intended to test whether serum miRNAs serve as a potential biomarker for both HCC and viral infections HBV and C. The expression of miRNA in 64 serum samples was analyzed by RT-qPCR. Compared to healthy volunteers, HCC patients' sera expre

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