Publications by authors named "Sherif Ahmed"

Sheath blight, caused by AG1 IA, is a challenging disease of rice worldwide. In the current study, nine isolates, within the anastomosis group AG-1 IA, were isolated, characterized based on their macroscopic and microscopic features, as well as their ability to produce cell wall degrading enzymes (CWDEs), and further molecularly identified via ITS sequencing. Although all isolates were pathogenic and produced typical sheath blight symptoms the susceptible rice cultivar, Sakha 101, AG1 IA -isolate SHBP9 was the most aggressive isolate.

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  • This study investigates the effectiveness of nano-chitosan protected Vitamin E (VENPs) in enhancing the growth and immune response of Nile tilapia compared to regular Vitamin E and control groups.
  • Results showed that fish fed with VENPs had significantly better growth rates, lower feed conversion ratios, and improved immune responses, particularly at 75% and 100% concentrations.
  • Fish on the VENPs diet displayed a markedly lower mortality rate when challenged with A. hydrophila, suggesting that incorporating VENPs into their diet at 50, 75, and 100 mg/kg could boost their immunity against infections.
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  • A 30-year-old man showed serious symptoms from severe chronic aortic regurgitation and issues with his heart's electrical signals and mitral valve.
  • He underwent successful surgery that involved replacing the aortic root and repairing the mitral valve.
  • This case underscores the connection between different heart valve diseases and the need for thorough evaluation for effective treatment.
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Mixed ligand complexes of manganese(II), cobalt(II), copper(II), and cadmium(II)with an innovative Schiff base ligand denoted as (L), 4-(2-((1E,2E)-1-(2-(p-tolyl)hydrazineylidene)propan-2-ylidene)hydrazineyl), served as the principal ligand, while glycine (L2) was employed as secondary ligand were successfully effectively characterized through a comprehensive set of analyses, including Elemental analysis, UV-Visible, FT-IR, Mass spectra, and conductometric measurements. Density functional theory (DFT) computations were executed to discern the enduring electronic arrangement, the energy gap, dipole moment and chemical hardness of the hybrid ligand assemblies. The proposed geometry for the complexes is a distorted octahedral structure.

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In aquaculture, fish are exposed to many stressors, such as climate changes and infectious diseases that affect their performance, immunity, and welfare. Freshwater fish subjected to salt bath become exhausted and stressed. In this experiment, Nile tilapia were exposed to a salt bath at a dose of 30 ppt for 30 min a day.

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Nowadays, nanomaterials enter high numbers of daily used products and drug manufacture. A nanocomposite of vitamins C (VC) and vitamin E (VE) with chitosan as a vehicle and protector was used in a comparative eight-week feeding study, Nile tilapia weighing 31.2 ± 0.

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Edwardsiellosis is a bacterial fish disease that mostly occurs in freshwater farms and is characterized by a high mortality rate. Edwardsiella tarda strain was recovered from 17 fish out of 50 Nile tilapia, which were harboring clinical signs of systemic septicemia. The level of un-ionized ammonia (NH) in the fish farm's water was 0.

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  • * In a study, mice were placed in low-oxygen conditions early in pregnancy, leading to no implantation of embryos and changes in the immune response and iron metabolism in the uterus.
  • * The study found that low oxygen caused cell death in the ovary and decreased progesterone levels, contributing to failed embryo implantation, highlighting the vulnerability of the corpus luteum to low-oxygen environments.
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The treatment of cancer often leads to a range of adverse effects. Encapsulating drugs can mitigate these effects and enhance drug efficacy by enabling a controlled release at the site of interest. This study details the successful synthesis of zinc oxide nanoparticles (ZnONPs) through the precipitation of Zn(NO)·6HO with KOH.

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Background: Chlorpyrifos (CPF) is a widely used pesticide in the production of plant crops. Despite rapid CPF biodegradation, fish were exposed to wastewater containing detectable residues. Recently, medicinal plants and algae were intensively used in aquaculture to replace antibiotics and ameliorate stress impacts.

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Background: Depression during pregnancy is a significant health concern that can lead to a variety of short and long-term complications for mothers. Unfortunately, there is a lack of information available on the prevalence and predictors of prenatal depression in rural eastern Ethiopia. This study assessed prenatal depression and associated factors among pregnant women attending public health facilities in the Babile district, Eastern Ethiopia.

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Soft materials made from braided or woven microscale fibers can display unique properties that can be exploited in electromagnetic, mechanical, and biomedical applications. These properties depend on the topology of the braids or weaves-that is, the order in which fibers cross one another. Current industrial braiding and weaving machines cannot easily braid or weave micrometer-scale fibers into controllable topologies; they typically apply forces that are large enough to break the fibers, and each machine can typically make only one topology.

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There are no guidelines for the most effective medication to reduce hepatic encephalopathy (HE) or the associated mortality. The purpose of this study is to determine the most effective possible treatment among the single treatment options or the combined treatment options for decreasing the morbidity and mortality of HE. We evaluated the outcomes by various parameters such as the quality of life, reduction in ammonia, all causes of mortality, adverse events, reversal of minimal HE, and development of overt HE.

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Background: Globally, the burden of maternal malnutrition remains an enormous public health problem; malnourished pregnant women are at increased risk of having low-birth-weight (LBW) infants. Several reports suggest a possible association between malnutrition among lactating mothers and the production of smaller quantities of breast milk. Many women have incorrect nutrition knowledge during pregnancy due to false beliefs derived from popular practices.

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Background: Pollution with heavy metals (HMs) is time- and concentration-dependent. Lead and zinc pollute the aquatic environment, causing severe health issues in aquatic animals.

Materials And Methods: Nile tilapia, the predominant cultured fish in Egypt, were experimentally exposed to 10% of LC of lead nitrate (PbNO) and zinc sulfate (ZnSO).

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Aflatoxin B1 (AFB1) is a plant-origin toxin that could induce oxidative stress in fish. The micromineral selenium (Se) possesses well-documented antioxidant properties. To assess the ameliorative effects of SeNPs (1 mg/kg fish feed) on oxidative stress induced by AFB1 (500 μg/kg fish feed), Nile tilapia (32.

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Alzheimer's disease (AD) is a progressive illness with a slow start that lasts many years; the disease's consequences are devastating to the patient and the patient's family. If detected early, the disease's impact and prognosis can be altered significantly. Blood biosamples are often employed in simple medical testing since they are cost-effective and easy to collect and analyze.

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Schwannomas are slow-growing benign peripheral nerve sheath tumors derived from Schwann-lineage cells that develop in association with NF2-related schwannomatosis (NF2) and schwannomatosis (NF3), as well as spontaneously. Individuals affected with NF2 and NF3 have multiple schwannomas with tumors arising throughout life. Surgical resection, the standard management, is limited in scope and efficacy and is itself associated with significant morbidity.

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Many governments have approved the use of oxytetracycline as an antibiotic additive to food fish, with oxytetracycline now routinely used in many nations. However, oxytetracycline is known to have immunosuppression impacts. We, therefore, evaluated the immunological, antioxidative, and histopathological status of Nile tilapia fed a diet containing silymarin (100 mg/kg fish feed) for 0, 2, 4, 6, and 8 weeks.

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Wet ponds have been extensively used for controlling stormwater pollutants, such as sediment and nutrients, in urban watersheds. The removal of pollutants relies on a combination of physical, chemical, and biological processes. It is crucial to assess the performance of wet ponds in terms of removal efficiency and develop an effective modeling scheme for removal efficiency prediction to optimize water quality management.

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Iatrogenic vascular injury during lumbar microdiscectomy is a rather rare complication, but it can have fatal consequences. Here, we report a patient who underwent an L5-S1 microdiscectomy, which was complicated by inferior mesenteric artery injury. The patient presented in the recovery room with symptoms of hypotension and tachycardia after the operation which was successfully managed by endovascular embolization.

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Background: The inflammation and repair of the intestinal mucosa in inflammatory bowel disease (IBD) involve a complex interplay between innate, adaptive immune responses, and hormones. This may explain the relapsing clinical course of the disease.

Methods: We present the first reported case of a patient presenting their initial flare of ulcerative colitis immediately after discontinuing growth hormone (GH) therapy, suggesting treatment with GH or growth factors may prevent the development of IBD.

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One-step and two-step pathways are proposed to synthesize cytokinin in plants. The one-step pathway is mediated by LONELY GUY (LOG) proteins. However, the enzyme for the two-step pathway remains to be identified.

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Unlabelled: Near isogenic F (NIF) population frequently developed by conventional backcross has dramatically contributed to QTL identification in plants. Developing such a NIF population is time-consuming. Thus, it is urgent to rapidly produce a NIF population for QTL cloning.

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