A5032788525- Marine Sponges and Natural Products
- Synthesis and Biological Activity
- Coral and Marine Ecosystems Studies
- Fish Biology and Ecology Studies
- Marine Ecology and Invasive Species
- Insect Pest Control Strategies
- Nanoparticles: synthesis and applications
- Environmental Toxicology and Ecotoxicology
- Microbial Natural Products and Biosynthesis
- Marine and coastal plant biology
- Marine Biology and Environmental Chemistry
- Heavy metals in environment
- Parasite Biology and Host Interactions
- Aquatic life and conservation
- Sirtuins and Resveratrol in Medicine
- Echinoderm biology and ecology
- Synthesis of heterocyclic compounds
- Seaweed-derived Bioactive Compounds
- Moringa oleifera research and applications
- Aquatic Ecosystems and Biodiversity
- Agriculture and Biological Studies
- Cholinesterase and Neurodegenerative Diseases
- Brain Metastases and Treatment
- Insect behavior and control techniques
- Fisheries and Aquaculture Studies
Al-Azhar University
2017-2024
Al-Azhar University
2021-2023
Agricultural Research Center
2018
Bioactive compounds extracted from marine organisms showed several biological activities. The present study is an extension of our earlier studies where we assessed the antiproliferative and pro-apoptotic activities ethanol, methylene chloride, ethyl acetate, acetone, chloroform crude extracts sponges: Negombata magnifica (NmE) Callyspongia siphonella (CsE) against cancer cells. Herein, are extending previous findings on both sponge species depending alternative methanol extraction method...
The present investigation was carried out during summer 2016 to determine the possible bioactive components extracts with six solvents (Methanol, Methylene Chloride, EtOH, Ethyl Acetate, Acetone, and Chloroform) from soft coral, Sinularia maxima using GC-MS analysis. Sixty-four compounds were identified extracts. prevailing in these Alloaromadendrene (8.8); Hexadecanoic acid, methyl ester (9.4); batilol (12.5); Dimethyl Sulfoxide (2.4); n-Hexadecanoic acid (9.6); Heneicosane (11.6);...
The present work aims to investigate the food items and feeding habits of some Nile fish namely; Alestes baremoze, Labeo niloticus, Mormyrus kannume Oreochromis niloticus that were collected from El-Qanater Al-Khairia during spring 2018 as well study their correlation with live food. examination plankton samples revealed there 25 phytoplankton species belonging 6 phyla plant kingdom. common Bacillariophyta, Chlorophyta, Cyanophyta, Dinophyceae. Twenty-five other immature stages representing...
Bioactive constituents of numerous marine organisms have been investigated recently for their preclinical and clinical anticancer activity. Three organisms: black-spotted sea cucumber: Pearsonothuria graeffei (Pg), lollyfish: Holothuria atra (Ha), hare: Aplysia dactylomela (Ad), were collected during winter 2019 from Gulf Aqaba, Red Sea, Egypt, macerated with ethanol into three different extracts: PgE, HaE, AdE, where each was in vitro assessed its antiproliferative proapoptotic properties...
Elements accumulation in crayfish is proportional to the increase bioavailability (direct contact) with surrounding water, sediment, and feeding. Five heavy metals (Cu, Cr, Mn, Ni, Ag) lithium (Li) were analyzed tissues. (heavy lithium) concentrations tissues showed significant differences between two sampling stations (El-Qanatir El-Rahawi drain). However, levels of elements arranged declining order as hepatopancreas > gills exoskeleton muscles for Cu Cr; Ni Ag; Li Mn. The human health...
Sponges are champion of bioactive producers because the variety products that have been found from them. Most compounds extracted sponges were classified into antibiotic, antiviral, antitumor, and anti-inflammatory. Tow marine sponge species collected during winter 2016 Gulf Aqaba, Red Sea, Egypt viz., Callyspongia crassa siphonella. The belong to family Callyspongiidae. samples by ethanol investigated as a promising source natural which can be used antimicrobial, antioxidant,...
Abstract The Egyptian coast of Gulf Aqaba, north the Red Sea, suffers from severe destruction and deterioration in habitat biodiversity due to anthropogenic activities flooding. present work aims evaluate impacts different human flooding on macrobenthic invertebrates along Aqaba. From January 2019 December 2019, many field trips (12 trips) were conducted survey invertebrate communities monitor water quality at nine sites within three sectors study area. Each site was divided into four...
This work aimed to study the effects of recreational diving and snorkeling on distribution, diversity, abundance surgeonfishes in six northern islands, different their load, at Hurghada area Egyptian Red Sea waters. SCUBA survey was conducted summer 2019 using transect technique reef flat slope sites compare total single surgeonfish species census among microhabitats. A belonging three genera were recorded during current survey, including Zebrasoma xanthurum, desjardinii, Acanthurus gahhm,...
In this study, the crude extract and its isolated compounds from stem bark of Annickia chlorantha were tested for their larvicidal, developmental, repellent activity against mosquito vector, Culex pipiens, besides toxicity to non-target aquatic organism, zebrafish (Danio rerio). The acute larvicidal compounds; namely, palmatine, jatrorrhizine, columbamine, β-sitosterol, methanolic (AC), was observed. Developmentally, larval duration significantly prolonged when palmatine β-sitosterol...
Fractionation of the stem bark Enantia chlorantha Oliv yields three alkaloids, palmatine (1), jatrorrhizine (2), columbamine (3), and β-Sitosterol (4). In this investigation, density functional theory (DFT) calculations were carried out to evaluate electronic structure properties 1–4 by DFT-B3LYP/6-31G level using Gaussian 09 software. The highest occupied molecular orbital (HOMO), lowest unoccupied (LUMO), HOMO-LUMO energy difference (band gap), hardness (η), softness (S), dipole moment...
The anticancer, antimicrobial, and insecticidal activities of sarcotrocheliol (1) cholesterol (2) obtained from the soft coral Sarcophyton trocheliophorum (S. trocheliophorum) were intensively studied. According to this study, both compounds 1 2 showed potential cytotoxicity towards human colorectal carcinomaHCT-116 (IC50 10.4, 11.8 µg/mL) liver carcinoma HepG2 cell lines 8.8, 12.0 µg/mL), respectively. Compounds evaluated as inhibitors caspase-3, a member cysteine protease family, which is...
Sponges are champion of bioactive producers because the variety products that have been found from them. Most compounds extracted sponges were classified into antibiotic, antiviral, antitumor, and anti-inflammatory. Tow marine sponge species collected during winter 2016 Gulf Aqaba, Red Sea, Egypt viz., Callyspongia crassa siphonella. The belong to family Callyspongiidae. samples by ethanol investigated as a promising source natural which can be used antimicrobial, antioxidant,...
Seaweed draws a lot of attention for its vital role in aquaculture as it contains beneficial biological compounds that undoubtedly might help the development this field. The current study sheds light on potential efficiency dietary supplements Grateloupia acuminata and G. doryphore (Halymeniaceae) nanoparticles (GNS) at different levels with bionanocomposite cellulose acetate membranes (CA/bio-AgNps) improved growth performance, digestive enzyme activity, immunity, antioxidative, resistance...
Tephritid fruit flies are a group of dangerous insects, attack fruits trees and certain vegetable in all over the world causing direct indirect economic injury, from it Bactrocera zonata (Saunders) (Diptera: Tephritidae) is known as most serious pest tropical subtropical. The experiments carried out during first February, 2018, adults Tephritidae), B. were taken plant protection research institute at Doki , Giza, Egypt, thenceforth transferred to research, Sharkia branch .The current study...
Marine organisms derived extracts have been shown to exert multiple anti-cancer activities. Two marine sponge species; finger-sponge "Negombata magnifica (Nm)" and tube-sponge "Callyspongia siphonella (Cs)" were collected during summer 2020 from the Gulf of Aqaba (Red Sea, Egypt). Each macerated with methylene chloride (CH2Cl2), ethyl acetate (C4H8O2), acetone (C3H6O), chloroform (CHCl₃) separately into four different crude for each species eight as a total both species, where extract was in...
Concentrations of heavy metals in the water, sediments andPatella caerulea (shells and soft tissues) were determined.
This investigation examined the vulnerability of three branching coral species (Acropora humilis, Pocillopora damicornis, and Stylophora pistillata) to environmental changes within marine reserves Taba, Nuweiba, Dahab in Gulf Aqaba. Coral growth rates were assessed as a key indicator reef vitality, reacting shifting physicochemical parameters. A. humilis manifested highest rate, followed by S. pistillata P. damicornis. Site-specific data analysis found displayed greatest proliferation, with...