Publications by authors named "Umar H"

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To determine the benefits and harms of injury prevention programmes on anterior cruciate ligament injuries.

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Background: Diabetic retinopathy (DR), a leading cause of vision loss worldwide, is a common complication of type 2 diabetes mellitus (T2DM) driven by chronic hyperglycemia and microvascular damage. Fibroblast growth factor 21 (FGF21) is crucial in blood sugar regulation and has been linked to DR incidence and severity. While some studies suggest that FGF21 levels may contribute to the DR incidence, others propose a protective role.

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Chitosan, a biopolymer derived from the deacetylation of chitin found in crustacean shells and certain fungi, has attracted considerable attention for its promising health benefits, particularly in gut microbiota maintenance and immune system modulation. This review critically examines chitosan's multifaceted role in supporting gut health and enhancing immunity, beginning with a comprehensive overview of its sources, chemical structure, and its dual function as a dietary supplement and biomaterial. Chitosan's prebiotic effects are highlighted, with a focus on its ability to selectively stimulate beneficial gut bacteria, such as Bifidobacteria and Lactobacillus, while enhancing gut barrier integrity and inhibiting the growth of pathogenic microorganisms.

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Article Synopsis
  • The study evaluated the toxicity of aqueous and methanol extracts from a plant's roots in albino rats, focusing on both acute and sub-acute effects and some biochemical parameters.
  • Findings showed that both extracts were non-toxic at doses up to 3000 mg/kg, but higher doses (5000 mg/kg) led to liver toxicity indicators.
  • The extracts may have antioxidant properties, as they did not cause lipid peroxidation or significant changes in lipid profiles at a lower dose of 200 mg/kg, supporting the plant's safe use in traditional medicine.
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Ubiquitin-specific peptidase 7 (USP7) is a deubiquitinating enzyme that mediates the stability and activity of numerous proteins. At basal expression levels, USP7 stabilizes p53 protein, even in the presence of excess MDM2. However, its overexpression leads to the deubiquitination of MDM2 at a rate faster than p53, leading to p53 degradation and pro-tumorigenic roles.

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Introduction: Heterogeneous Acute Myeloid Leukemia (AML) causes substantial worldwide morbidity and death. AML is characterized by excessive proliferation of immature myeloid cells in the bone marrow and impaired apoptotic regulator expression.

Method: B-Cell Lymphoma 2 (BCL-2), an anti-apoptotic protein overexpressed in AML, promotes leukemic cell survival and chemoresistance.

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  • MALT1 is a crucial protein involved in immune responses, and its unusual signaling is linked to various diseases, including cancer, making it a target for new therapies.
  • The study aimed to identify plant-based small molecules that could bind to MALT1 using computational methods, screening 34 compounds for their effectiveness.
  • Cyanidin emerged as a promising allosteric inhibitor of MALT1, showing better binding and stability than the control drug thioridazine, but further testing is necessary to confirm its effectiveness in treating cancer and related diseases.
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  • The study compared the effects of pressurizing bone cement during hip hemiarthroplasty in patients over 60 with neck of femur fractures, focusing on 30-day post-operative mortality and revision rates for loosening.
  • A total of 406 procedures used pressurized cement and 722 used non-pressurized cement, with no significant differences found in mortality rates (7.2% vs. 8.2%) or revision rates for any cause.
  • Survival rates at 10 years were slightly better for the pressurized group (15.3%) compared to the non-pressurized group (12.6%), but the overall outcomes were comparable between the two methods.
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Background: Prediabetes is an important risk factor for the development of type 2 diabetes and is common in Nigeria. Prediabetes often progresses to type 2 diabetes but effective intervention can reverse the carbohydrate intolerance associated with the condition. No studies have been reported among Nigerians on the natural outcome or effect of intervention in prediabetes.

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Background:  Ovarian cancer is a significant cause of morbidity and mortality among women worldwide. Early detection and accurate diagnosis are crucial for improving patient outcomes. Serum biomarkers, such as cancer antigen 125 (CA-125), have shown promise in aiding the diagnosis and monitoring of ovarian lesions.

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This work utilizes predictive modeling in drug discovery to unravel potential candidate genes from that are implicated in antimicrobial resistance; we subsequently target the gidB, MacB, and KatG genes with some compounds from plants with reported antibacterial potentials. The resistance genes and plasmids were identified from 10 whole-genome sequence datasets of ; forty two plant compounds were selected, and their 3D structures were retrieved and optimized for docking. The 3D crystal structures of KatG, MacB, and gidB were retrieved and prepared for molecular docking, molecular dynamics simulations, and ADMET profiling.

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Background: The study investigated the effect of co-administration of curcumin and donepezil on several markers of cognitive function (such as spatial memory, astrocyte activation, cholinesterase expressions) in the brain cortex and hippocampus of scopolamine-treated rats.

Method And Results: For seven consecutive days, a pre-treatment of curcumin (50 mg/kg) and/or donepezil (2.5 mg/kg) was administered.

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It is well-known that the Tseng algorithm and its modifications have been successfully employed in approximating zeros of the sum of monotone operators. In this study, we restored various thoracic diseases' computerized tomography (CT) images, which were degraded with a known blur function and additive noise, using a modified Tseng algorithm. The test images used in the study depict calcification of the Aorta, Subcutaneous Emphysema, Tortuous Aorta, Pneumomediastinum, and Pneumoperitoneum.

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Objective: The objective was to evaluate the long-term outcome of microvascular decompression (MVD) utilizing autologous muscle for trigeminal neuralgia (TGN).

Methods: A retrospective review was performed of all first-time MVD patients for typical classic TGN without prior surgical intervention who were treated between 2000 and 2019 at a tertiary supraregional neurosurgery practice. Demographic characteristics, surgical findings, operative results, complications, and recurrence rates at 1 year, 5 years, and last follow-up were collected.

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Lung cancer is the one of the most prevalent cancer in the world. It kills more people from cancer than any other cause and is especially common in underdeveloped nations. With 1.

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Chronic myeloid leukemia (CML) is a hematological malignancy characterized by the neoplastic transformation of hematopoietic stem cells, driven by the Philadelphia (Ph) chromosome resulting from a translocation between chromosomes 9 and 22. This Ph chromosome harbors the breakpoint cluster region (BCR) and the Abelson (ABL) oncogene (BCR-ABL1) which have a constitutive tyrosine kinase activity. However, the tyrosine kinase activity of BCR-ABL1 have been identified as a key player in CML initiation and maintenance through c-Abl kinase.

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Iron oxide nanoparticles (FeONPs) were synthesized utilizingsourced from Cyprus as a stabilizing agent. The study delved into assessing the antimicrobial, cytotoxic, anti-proliferative, and anti-migratory potential of Fe2O3 NPs through disc diffusion, trypan blue, and 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT) assay, respectively. Characterization of the synthesized Fe2O3 NPs was conducted using Fourier-transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), UV-vis spectroscopy (UV-vis), scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDX).

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Objectives: This study aimed to develop, optimize and evaluate glyceryl monooleate (GMO) based cubosomes as a drug delivery system containing cisplatin for treatment of human lung carcinoma.

Significance: The significance of this research was to successfully incorporate slightly water soluble and potent anticancer drug (cisplatin) into cubosomes, which provide slow and sustained release of drug for longer period of time.

Methods: The delivery system was developed through top-down approach by melting GMO and poloxamer 407 (P407) at 70 °C and then drop-wise addition of warm deionized water (70 °C) containing cisplatin.

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Background: Due to its lack of bony support, the shoulder joint has the broadest range of motion out of all the joints in the body. Instead, one of the joints that dislocate most frequently is the shoulder joint. Multiple pathologic abnormalities, including the traumatic separation of the anterior-inferior capsule-labral complex from the glenoid rim, are caused by repeated anterior glenohumeral dislocation.

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Article Synopsis
  • Myrtle methanolic extract (MMEx) shows promising antioxidant and anti-inflammatory properties, with high total phenolic and flavonoid contents; its most abundant compounds include 1,8-cineole and α-pinene.
  • In vitro and in vivo tests demonstrated that MMEx effectively inhibits oxidative stress and inflammation, particularly showing good results against carrageenan-induced paw edema.
  • The pharmacokinetic study indicated that the active compounds from MMEx have favorable absorption and distribution profiles, with limited toxicity, making it a potential therapeutic option for health issues related to oxidative stress and inflammation.
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Lead (Pb) poisoning is an environmental substance that accumulates in the hepato-renal tissue, which is hazardous to health, while Anacardium occidentale L. is a tropical herb used to treat oxidative stress and inflammatory diseases. The aim of this study was to investigate the antagonistic effect of Anacardium occidentale leaf extract on lead acetate exposure-induced hepatorenal toxicity in rats.

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Isolation rooms are crucial in healthcare facilities to prevent the spread of infectious diseases. Infectious diseases can be transmitted to humans from humans or through animals known as zoonoses. With the increase in the number of COVID-19 cases, isolation rooms have become one of the most critical facilities in hospitals.

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Cancer is one of the major causes of death in the modern world, and the incidence varies considerably based on race, ethnicity, and region. Novel cancer treatments, such as surgery and immunotherapy, are ineffective and expensive. In this situation, ion channels responsible for cell migration have appeared to be the most promising targets for cancer treatment.

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