Publications by authors named "Abdel-Hamid H"

Introduction: The use of telemedicine for treatment of coronavirus disease 2019 (COVID-19) infection has been effective in lowering the risk of infection and relieving strain on the healthcare system. This study aimed to describe the clinical characteristics of COVID-19 cases, their follow-up, risk factors of disease severity, and predictors of hospital admission while using telemedicine.

Methodology: The study included 611 Egyptian patients with mild and moderate COVID-19 disease.

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One of the undesirable complications of diabetes is sexual dysfunctions in males which may affect their fertility. This research aims to study the effect of C-peptide administration on the prostate of diabetic rats and focusing on exploring the role of the autophagy pathway in diabetic prostate and whether it is involved in C-peptide action. Forty adult male Wistar albino rats were separated into control group, diabetic group, diabetic + C-peptide and diabetic + C-peptide + 3-Methyladenine (autophagy inhibitor).

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A series of new 1,2,4-oxadiazole-based derivatives were synthesized and evaluated for their anti-AD potential. The results revealed that eleven compounds (1b, 2a-c, 3b, 4a-c, and 5a-c) exhibited excellent inhibitory potential against AChE, with IC values ranging from 0.00098 to 0.

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A series of novel 1,2,4-oxadiazole-based derivatives were synthesized and evaluated for their potential anti-Alzheimer disease activity. The results revealed that compounds 2b, 2c, 2d, 3a, 4a, 6, 9a, 9b, and 13b showed excellent inhibitory activity against acetylcholinesterase (AChE) with IC values in the range of 0.0158 to 0.

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A library of 16 3-benzyl- -substituted quinoxalin-2-ones was synthesized as -substituted quinoxalines and quinoxaline-triazole hybrids via click reaction. These compounds were tested for their anticancer activity via MTT assay on HCT-116 and normal colonocyte cell lines to assess their cytotoxic potentials and safety profiles. Overall, compounds , , , and were found to be promising anticolorectal cancer agents; they exhibited remarkable cytotoxicity (IC 0.

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The EGFR/PI3K/Akt/mTOR pathway is important for metastasis, medication resistance, apoptosis prevention, and malignant transformation. Mutations in lung and colon cancer typically change this pathway's expression. As a result, a novel class of 1,2,4-oxdiazoles that are attached to 1,2,3-triazoles, 5-11, were created as possible anticancer drugs.

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Diabetes is one of the leading causes of endometrial diseases in women. No study has addressed the influence of hydrogen sulphide (HS) donors on endometrial injury on top of type 1 diabetes. This research was conducted to study either the effect of sodium hydrosulphide (NaHS), the HS donor, or DL-propargylglycine (PAG), the inhibitor of endogenous HS production, on the endometrium of diabetic rats.

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A series of new sulfonamide derivatives connected through an imine linker to five or seven membered heterocycles were designed and synthesized. All synthesized derivatives were characterized using a variety of spectroscopic methods, including IR, HNMR, and CNMR. α-glucosidase and α-amylase inhibition activities, as well as glucose uptake were assessed for each of the synthesized compounds.

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Purpose: This aimed to identify the factors associated with severe/critical coronavirus disease 2019 (COVID-19) infection in rheumatoid arthritis (RA) patients.

Methods: Two-hundred RA patients diagnosed according to the American College of Rheumatology/ European League Against Rheumatism (ACR/EULAR) classification criteria with proven COVID-19 infection were recruited and categorized according to the world health organization (WHO) COVID-19 severity grading into 2 groups: patients with mild/moderate COVID-19 (n = 164) and patients with severe/critical COVID-19 (n = 36). Comparison between both groups was done to identify the risk factors associated with severe/critical infection.

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Monoamine oxidases (MAOs) and vascular endothelial growth factor receptor-2 (VEGFR-2) are promoters of colorectal cancer (CRC) and central signaling nodes in epithelial-mesenchymal transition (EMT) induced by activating hypoxia-inducible factors (HIFs). Herein, a novel series of rationally designed triazole-tethered quinoxalines were synthesized and evaluated against HCT-116 CRC cells. The tailored scaffolds combine the pharmacophoric themes of both VEGFR-2 inhibitors and MAO inhibitors.

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Selective induction of breast cancer apoptosis is viewed as the mainstay of various ongoing oncology drug discovery programs. Passerini scaffolds have been recently exploited as selective apoptosis inducers a caspase 3/7 dependent pathway. Herein, the optimized Passerini caspase activators were manipulated to synergistically induce P53-dependent apoptosis modulating the closely related P53-MDM2 signaling axis.

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Background And Aim: The prognosis of sarcoidosis is challenging and largely depends on the persistence of disease activity and the degree of organ dysfunction. Various biomarkers have been evaluated for diagnosis, disease activity assessment, and prognosis. This study aimed to determine if the ratios of monocytes to high-density lipoprotein cholesterol (MHR), platelets to lymphocytes (PLR), neutrophils to lymphocytes (NLR), and lymphocytes to monocytes ratio (LMR) could be used as novel sarcoidosis activity markers.

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Hypersensitivity pneumonitis (HP) is an interstitial lung disease that develops after inhalation of a variety antigens in susceptible individuals. The nasal mucosa is constantly exposed to these antigens that can irritate the respiratory mucosa. So, the purpose of this study was to study nasal histopathological changes in order to identify any shared pathological changes between the upper airways and the well-known pathological features of HP.

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Although vaccines are obviously mitigating the COVID-19 pandemic diffusion, efficient complementary antiviral agents are urgently needed to combat SARS-CoV-2. The viral papain-like protease (PLpro) is a promising therapeutic target being one of only two essential proteases crucial for viral replication. Nevertheless, it dysregulates the host immune sensing response.

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Mammary gland hyperplasia is one of the risk factors for breast cancer. Till date, there is no study that has addressed the effect of hemin in this condition. Thus, this study was designed to evaluate the effect of the heme oxygenase 1 (HO-1) inducer (hemin) and its inhibitor (zinc protoporphyrin-IX) (ZnPP-IX) on mammary gland hyperplasia (MGH) induced by estrogen and progesterone in adult albino rats.

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Proline is water soluble amino acid extensively used in drug delivery systems. Compounds of cobalt (Co) transition metal have potent antimicrobial and anticancer activities. However, a drug delivery system combining proline cobalt is not reported yet.

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Ovarian torsion is a gynecological emergency that occurs mostly during the female reproductive years due to ovarian masses or surgical manipulation. This work aims to explore the probable protective effect of leptin on rat ovaries due to ischemia-reperfusion (IR) injury. Wistar albino rats were divided into four groups: 1) control group; 2) ovarian IR group (OVIR); 3) leptin group I [OVIR + leptin (10 µg/kg body weight, b.

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We explored a new isonitrile, namely 4-(-phthalimido)phenyl isonitrile, with extraordinary features. The novel isocyanide has a pharmacophore, the phthalimido (Pht) group, that possesses promising pharmaceutical activities. We found that the novel isonitrile is unexpectedly odorless as an extra bonus which makes its handling easy in organic synthesis to serve as a scaffold for building several new amide derivatives through multicomponent reactions, overcoming the stink of common aromatic isonitriles such as phenyl isonitrile, benzyl isonitrile, -nitrophenyl isonitrile, and ethyl 4-isocyano benzoate.

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The potential long-term neuropsychiatric effects of COVID-19 are of global concern. This study aimed to determine the prevalence and predictors of neuropsychiatric post-acute sequelae of COVID-19 among Egyptian COVID-19 survivors and to study the impact of full vaccination before COVID-19 infection on the occurrence and severity of these manifestations. Three months after getting COVID-19 infection, 1638 COVID-19 survivors were screened by phone for possible neuropsychiatric sequelae.

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Selective elimination of tumors has always been the mainstay of oncology research. The on-going research underlying the cellular apoptotic mechanisms reveal caspases activation, especially the key effector caspase-3, as a personalized tumor-selective therapeutic strategy. Our continued research protocol has exploited new optimized Passerini α-acyloxy carboxamides as efficient apoptotic inducers via caspase-3/7 dependent mechanism with highly selective anticancer profiles.

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Background: Thromboembolism was a chief cause of mortality in 70% of patients with COVID-19. Our objective was to see if serum interleukins 1 beta (IL-1β) and soluble platelets selectin (sP-selectin) could serve as novel markers of thromboembolism in COVID-19 patients.

Methods: This cross sectional study involved 89 COVID-19 patients who were recruited from 1st of February to 1st of May 2021.

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The development of novel therapeutics promoting selective tumor elimination is the mainstay of clinical oncology. Emerging insights into tumor targeting reveal caspases activation, especially caspase-3, as a personalized anticancer strategy. Our on-going cancer research has exploited Passerini α-acyloxy carboxamides as caspase-3/7-dependent apoptotic inducers.

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