Publications by authors named "Mahrous A Ibrahim"

Background: Toxic cardiomyopathies were a potentially fatal adverse effect of anthracycline therapy.

Aim: This study was conducted to demonstrate the pathogenetic, morphologic, and toxicologic effects of doxorubicin on the heart and to investigate how the MAPK /TNF-α pathway can be modulated to improve doxorubicin-Induced cardiac lesions using bone marrow-derived mesenchymal stem cells (BM-MSCs) and olive leaf extract (OLE).

Methods: During the study, 40 adult male rats were used.

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Background: One of the most common causes of aesthetic failure and restoration replacement is the tooth restorations color mismatch specifically after aging.

Methods: One hundred and two participants with endodontically treated first molar were selected clinically. The patients were randomly splited into two groups and restored either with Cerasmart hybrid ceramic or Vita Enamic polymer infiltrated ceramic network (PICN) crowns and cemented using dual cure adhesive cement.

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Placenta percreta is a rare, aggressive, and severe form of the placenta accreta spectrum. One of its most devastating effects is the sudden rupture of uterus. Uterine scarring is the leading risk factor for uterine rupture, although it can also happen, but rarely, in an unscarred uterus showing more severe repercussions.

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Background: the nephrotoxicity of methotrexate (MTX) is observed in high-dose therapy. Moreover, low-dose MTX therapy for rheumatic diseases is debatable and claimed to cause renal impairment. This study aimed at studying the effect of methotrexate in repeated low doses on rat kidneys and assessing the efficacy of adipose-derived mesenchymal stem cells (AD-MSCs) and platelet rich plasma (PRP) for attenuating this effect.

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Endomyocardial fibrosis (EMF) is an idiopathic tropical disorder that is characterized by the development of restrictive cardiomyopathy. Neglected EMF can cause sudden cardiac death (SCD) in adults. Conclusive diagnosis of EMF depends on autopsy after death.

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Objectives: Although childhood intoxication is avoidable, it remains a leading cause of morbidity and mortality in both developing and developed countries. The aim of this study was to assess the patterns and outcomes of acute pediatric intoxication in Aljouf, KSA.

Methods: A retrospective record-based descriptive study was conducted at the Prince Mutaib bin Abdulaziz hospital, and the Maternity and Children's hospital in Aljouf, KSA.

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Purpose: To compare the axial and nonaxial retention forces of different milled bar attachment designs for maxillary implant overdentures.

Materials And Methods: Four implants were placed in the canine and second premolar areas of an edentulous maxillary ridge model and connected to a cobalt-chromium milled bar either with or without Locator attachments. According to the type of bar and overlying housing, the following groups (n = 10 each) were investigated: group 1 (MWM) = milled bar without attachments and metal housing; group 2 (MWP) = milled bar without attachments and PEEK housing; group 3 (MAM) = milled bar with Locator attachments and metal housing; and group 4 (MAP) = milled bar with Locator attachments and PEEK housing.

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Purpose: To evaluate patient satisfaction and prosthetic complications of maxillary conventional dentures and implant overdentures opposing mandibular implant overdentures with different attachments.

Materials And Methods: A total of 60 patients with maxillary conventional dentures (maxillary CD) and mandibular two-implant overdentures received four implants in the maxilla. The implants were connected to the maxillary overdentures with a stud attachment (maxillary OD).

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Background: Hepatic and renal damage is a cisplatin (Cis)-induced deleterious effect that is a major limiting factor in clinical chemotherapy.

Objectives: The current study was designed to investigate the influence of pretreatment with olive leaf extract (OLE), bone-marrow-derived mesenchymal stem cells (BM-MSC), and their conditioned media (CM-MSC) against genotoxicity, nephrotoxicity, hepatotoxicity, and immunotoxicity induced by cisplatin in rats.

Methods: The rats were randomly divided into six groups (six rats each) as follows: Control; OLE group, treated with OLE; Cis group, treated with a single intraperitoneal dose of Cis (7 mg/kg bw); Cis + OLE group, treated with OLE and cisplatin; Cis + CM-MSC group, treated with BM-MSC conditioned media and Cis; and Cis + MSC group, treated with BM-MSC in addition to Cis.

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Objective: Myofascial pain syndrome with trigger points is the most common cause of nonodontogenic pain. Although injection of the trigger points is the most effective pain reduction treatment, many patients exhibit recurrence after a short period. Therefore, the aim of the current study was to evaluate the clinical efficacy of magnesium sulfate injections in the treatment of the masseter muscle trigger points when compared to saline injections.

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Reaching a postmortem diagnosis of hypothermia is challenging in forensic practice. Therefore, this study was conducted to detect the histopathological, histochemical and biochemical changes that occur in adult albino rats following exposure to induced fatal hypothermia. Twenty-four adult albino rats were divided into the negative control, moderate hypothermia, severe hypothermia and hypoxia groups.

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Purpose: This crossover study aimed to evaluate chewing efficiency and maximum bite force (BF) of conventional dentures, fixed prostheses, and milled bar overdentures (MO) used for All-on-4 implant rehabilitation of atrophied mandibular ridges.

Methods: Sixteen edentulous participants with resorbed mandibular ridges received new conventional dentures (CD, control). Four implants were inserted after 3 months in the mandible using the All-on-4 protocol and loaded immediately with acrylic prosthesis.

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Diabetic erectile dysfunction (DED) is a significant consequence of diabetes mellitus, and it is a multifactorial phenomenon that has no definitive treatment until now. Many therapeutic options provide symptomatic improvement rather than addressing the underlying etiology or restoring normal function. Stem cell (SC) therapy represents a potential hope in DED management.

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Heavy metals intoxication causes several health problems that necessitate finding new protective and therapeutic approaches. This study aimed to evaluate the impact of sp. leaves extract (MLE) on hepato-renal toxicities induced by cadmium (Cd) in male mice.

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Diagnosis of the underlying cause of sudden unexpected death in a previously healthy individual remains one of the important challenges in forensic practice. Ischemic heart disease is the most common cause of sudden death. The current study aims to investigate the incidence and pathology of sudden ischemic cardiac death in Egypt.

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Cisplatin is an important antineoplastic drug used in multiple chemotherapeutic regimens but unfortunately causes serious toxic effects as ovarian and uterine toxicity. This study aimed to investigate the potential protective effect of resveratrol (RSV) against cisplatin-induced ovarian and uterine toxicity in female rats. Thirty-two female Wistar rats were divided randomly into four groups (n = 8 in each).

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Background: Reported tramadol toxicity emphasizes the necessity to recognize its mechanism of toxicity, particularly to the brain tissue.

Aim: This study aimed to evaluate the protective effect of vitamin C (Vit C) in cerebrocortical toxicity mediated by tramadol in rats using biochemical and histological parameters.

Material And Methods: Forty-eight albino rats were randomly divided into eight groups, (n = 6/group) as follow: the control group received normal saline and vitamin C group received vitamin C (200 mg/kg per oral).

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Several deleterious effects of Tramadol including deaths were reported especially when used in large doses. Being metabolized mainly in the liver, Tramadol have serious hepatotoxic effects. This study investigates the effect of vitamin E on Tramadol-induced hepatotoxicity in rats by evaluating the antioxidant biochemical markers, the histopathological and immunohistochemical changes.

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Background: Cisplatin (CP) has been used in wide range for cancer treatment. Although nephrotoxicity of CP was the main complication, cardiotoxicity has been reported.

Objectives: This study investigates the protective role of green tea extract (GTE) and vitamin E (Vit-E) against CP-induced cardiotoxicity, and assesses their impact on CP antitumor efficacy.

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Introduction: Microleakage is one of the important contributing factors in the failure of resin restorations. The aim of this study was to determine the effect of the location of the gingival margin (enamel, dentin, or cementum) on nanohybrid composite resin on the microleakage of Class II posterior restoration.

Methods: This was an in vitro study done at Al-Farabi College of Dentistry and Nursing in Jeddah (Saudi Arabia).

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