Publications by authors named "Mohamed Sayed Ahmed"

Oral care is a crucial challenge of nursing care in orally intubated patients. Oropharyngeal colonization with microorganisms is probably the first step in the pathogenesis of most bacterial pulmonary infections. This study aimed to investigate the effect of different oral care solutions on the oral health status of critically ill patients.

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  • Manzala Lake was analyzed to evaluate heavy metal concentrations and their ecological risks in local fish species.
  • The study found that the mercury, arsenic, lead, and cadmium levels in fish muscles exceeded recommended limits, with African catfish showing the highest concentrations.
  • The research indicated significant health risks associated with consuming these fish due to high toxicity values, necessitating stricter hygiene practices to reduce contamination and ensure safety.
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  • FLLL-32, a synthetic curcumin analog, effectively inhibits the activation of STAT3 and shows anticancer properties while also exhibiting potential antiparasitic activity against multiple pathogens.
  • In experiments, FLLL-32 inhibited the growth of several parasites in a dose-dependent manner and demonstrated strong activity against Babesia microti, both in cell cultures and in mice models.
  • The study confirms FLLL-32's ability to reduce parasitemia in infected mice and suggests its potential use in treating babesiosis, particularly in combination with other antibabesial drugs.
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is an opportunistic pathogen causing severe infection in animals and humans. This study aimed to determine the ecological distribution and prevalence of multidrug-resistant (MDR) isolated from dairy cattle, the environment, and workers' hand swabs. Samples ( = 440) were collected from farms and households ( = 3, each).

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  • The study investigated the anti-growth effects of leaves methanolic extract (MOL) on various parasites in both cultures and infected mice, utilizing liquid chromatography mass spectrometry (LC-MS) to identify active compounds.
  • MOL demonstrated a dose-dependent inhibition of parasite growth, exhibiting efficacy levels indicated by IC values, with isoquercetin and rutin identified as the most abundant polyphenolic compounds in the extract.
  • When combined with low doses of diminazene aceturate (DA), MOL significantly reduced parasite growth in infected mice, suggesting its potential as an effective herbal therapy against piroplasmosis, especially when paired with specific anti-parasitic drugs.
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Rift Valley fever (RVF) is a mosquito-borne viral disease that affects a variety of domestic animals, including cattle, sheep, goats, and camels, and has zoonotic potential. Although the rift valley fever virus (RVFV) is usually asymptomatic in camels, it can induce abortion in some pregnant animals. In the current study, a serosurvey was carried out to investigate the prevalence of RVFV antibodies and related risk factors in camels from four Egyptian governorates.

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Bluetongue virus (BTV) is a vector-borne virus that primarily affects sheep. However, the disease is usually asymptomatic in cattle without obvious clinical signs related to BTV infection. Although there is evidence of BTV antibodies through serology in Egypt, it is still unknown whether Egyptian cattle have ever been exposed to the virus in the north or south of the country.

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Solid lipid nanoparticles second generation, nanostructure lipid carrier (NLC), is one of the most important biodegradable nanoparticles. Nanostructure Lipid carrier (NLC) was used to encapsulate methylene blue (MB) dye, carvacrol and citronellal and their efficacy as insecticidal against Culex pipiens (Cx. pipiens) were distinguished.

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Histone post-translational modification is one of the most studied factors influencing epigenetic regulation of protozoan parasite gene expression, which is mediated by histone deacetylases (KDACs) and acetyltransferases (KATs). The present study investigated the role of resveratrol (RVT) as an activator of histone deacetylases in the control of various pathogenic Babesia sp. and Theileria equi , as well as infected mice using fluorescence assay.

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Concerns regarding the possible hazards to human health have been raised by the growing usage of silica nanoparticles (SiNPs) in a variety of applications, including industrial, agricultural, and medical applications. This in vivo subchronic study was conducted to assess the following: (1) the toxicity of orally administered SiNPs on the liver, kidneys, and adrenal glands; (2) the relationship between SiNPs exposure and oxidative stress; and (3) the role of magnesium in mitigating these toxic effects. A total of 24 Sprague Dawley male adult rats were divided equally into four groups, as follows: control group, magnesium (Mg) group (50 mg/kg/d), SiNPs group (100 mg/kg/d), and SiNPs+ Mg group.

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Background: is classified as intracellular protozoa and is one of the major zoonotic parasites. Most warm-blooded intermediate hosts, including humans, are commonly infected by this parasite. The epidemiology of infection in Egyptian horses is currently poorly understood.

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Chemotherapy-induced peripheral neuropathy is a common adverse effect associated with a number of chemotherapeutic agents including paclitaxel (PTX) which is used in a wide range of solid tumors. Development of PTX-induced peripheral neuropathy (PIPN) during cancer treatment requires dose reduction which limits its clinical benefits. This study is conducted to investigate the role of toll like receptor-4 (TLR4) /p38 signaling and Klotho protein expression in PIPN and the role of trimetazidine (TMZ) in this pathway.

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Aims: Cyclophosphamide is an alkylating agent with vast arrays of therapeutic activity. Currently, its medical use is limited due to its numerous adverse events, including nephrotoxicity. This study aimed to follow the molecular mechanisms behind the potential renoprotective action of lactoferrin (LF) against cyclophosphamide (CP)-induced renal injury.

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Aim: The role of surgical castration and rosuvastatin treatment on lipid profile and lipid metabolism related markers was evaluated for their prognostic significance in metastatic prostate cancer (mPC) patients.

Methods: A total of 84 newly diagnosed castrated mPC patients treated with castration were recruited and divided into two groups: Group I served as control (statin non-users) while group II treated with Rosuvastatin (20 mg/day) for 6 months and served as statin users. Prostate specific antigen (PSA), epidermal growth factor receptor (EGFR), Caveolin-1 (CAV1), lipid profile (LDL, HDL, triglycerides (TG) and total cholesterol (TC)) and lipid metabolism related markers (aldoketoreductase (AKR1C4), HMG-CoA reductase (HMGCR), ATP-binding cassette transporter A1 (ABCA1), and soluble low density lipoprotein receptor related protein 1 (SLDLRP1)) were measured at baseline, after 3 and 6 months.

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is one of the most common causes of mastitis, leading to severe economic losses in the dairy industry. It is also zoonotic, with potential risks to public health. This study aimed to detect the occurrence of -resistant strains isolated from cattle, buffalo, their environment, milk and dairy products; and to investigate the extent of animal, ecological, and food contamination by methicillin-resistant (MRSA) or enterotoxigenic .

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The potential reproductive toxic effects of oral TiO NPs in adult male rats as well as the possible alleviation of chitosan administration was investigated. Animals were allocated to four groups; the first group received deionized water and was assigned as a control group. In the second group, rats received chitosan at a dose of 5 mg/kg BW/day.

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  • The study investigates antimicrobial resistance in dairy households and dried milk, analyzing 360 samples from cattle and their environment.
  • It found a prevalence of specific pathogens in all households, with high isolation rates from feces and bedding, while certain pathogens were absent in dried milk.
  • The research also tested the antimicrobial effects of essential oils, revealing that orange oil was the most effective, rapidly killing the pathogens, followed by rose oil and rose water.
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Canine babesiosis is a life-threatening haemoparasitic disease in dogs that is prevalent worldwide. In this study, the prevalence of Babesia vogeli (B. vogeli) was investigated in dogs from Egypt by using Polymerase Chain Reaction (PCR) assay, and associated risk factors were evaluated.

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Equid alphaherpesvirus 1 (EHV-1) is an important virus causing pathological disorders in horses. This highly contagious pathogen causes persistent outbreaks of upper respiratory tract infection, ocular affections, abortion, and neurological disorders with high mortality in Arabian horses in Egypt. The quick and accurate diagnosis is important to broaden our understanding about EHV-1 in the field, and to implicate stronger preventive, and control measures.

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  • Anaplasmosis is an infectious disease in camels spread by ticks, with a study conducted in Egypt revealing a 18.6% seroprevalence among 365 camels.
  • Risk factors linked to increased infection rates included tick infestations, the use of acaricides, grooming practices, and the overall body condition of the camels, while age and locality were found to have no significant impact.
  • Enhancing protective measures to address these risk factors could help curb the spread of anaplasmosis in Egyptian camels.
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The molecular identification and antigenic characterization of P0 protein in , a blood parasite of veterinary and zoonotic importance, were carried out in this study for use in developing subunit vaccines against infection. Recombinant protein encoding P0 (BdP0) was developed in , and its antiserum was generated in mice for further molecular characterization. Anti-rBdP0 serum had a specific interaction with the corresponding legitimate protein, as confirmed by Western blotting and indirect fluorescent antibody tests.

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In this study, we have investigated the impact of vitamin C on the production of pro-inflammatory cytokines (interleukin 1 β (IL-1 β), interleukin 6 (IL-6), interleukin 12p40 (IL-12p40), interferon gamma (IFNγ), and tumor necrosis factor alpha (TNF-α)) in lambs naturally infected by pneumonic pasteurellosis. Of 37 lambs, 18 lambs were identified to have pneumonic pasteurellosis and randomly allocated into two equal groups. Single subcutaneous dose of tulathromycine alone (2.

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