Environmental Studies on the Aqaba Gulf Coastal Waters during 2011-2013

Abdel-Halim, Ahamed M.; Aly-Eldeen, Mohamed A.; Fattah, Laila M. Abdel; Fahmy, Mamdouh A.; Abo-El-Khair, Ehssan M.; Khaled, Azza; El-Soud, Ahamed Abu; Shreadah, Mohamed A.

doi:10.4236/jep.2016.710121

Cited by 20 publications

(16 citation statements)

References 43 publications

(22 reference statements)

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“…The Red Sea is considering as the richest and most potentially productive source of marine environments. Marine organisms that live in the Red Sea are able to tolerate extreme changes in temperature, salinity, moisture and wave action to survive [9,10,11,12,13,14,15,16 ] .Marine organisms are able to survive in these extreme conditions and they produce a wide variety of primary and secondary metabolites which cannot be found in other organisms [17].Marine bioactive natural products compounds can be derived from a variety marine sources, for examples marine macro-and microalgae, plants ,seaweeds and sponges, all of which consist of various array of their own powerful and unique biomolecules [18, 19 ,20 ,21 ,22 ,23,24, 25 ,26 ,27 ,28] . Red algae are environmentally considerable as primary providers and producer of the structural habitats for many other marine organisms, and their important role is in the primary incorporations and protecting, maintenance, and keeping of coral reefs.…”

Section: Introductionmentioning

confidence: 99%

Red algae natural products for prevention of lipopolysaccharides (LPS)-induced liver and kidney inflammation and injuries

Nabil-Adam

Shreadah

2021

Bioscience Reports

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Background: The liver and kidney inflammation due to bacterial infection is one of the most common pathological problems leading to tissue damage or disease. In many liver and kidney disorders, which represent serious global health burden with a high economic cost, oxidative stress-related inflammation and apoptosis are important pathogenic components, finally resulting in acute liver and/or kidney failure. Erythropoietin and its analogues are well known to influence the interaction between apoptosis and inflammation in liver and kidney. Objective: The aim of this study is to investigate and clarify the effect of G. Oblongata red algae on lipopolysaccharides (LPS)-induced acute liver and kidney injury of mice with endotoxemia and associated molecular mechanism from inflammation, apoptosis and oxidative stress levels. Results: The current study cleared out that treatment of rats with the G. Oblongata extract prior to LPS injection significantly lowered serum cytokines, including NF-κB, MPO and LPO, and improved liver apoptosis through suppressing protein tyrosine kinase signaling pathway, and that may be due to antibacterial activity as well antioxidant capacity of G. Oblongata extract. Conclusion: The current study was cleared out the possibility of administration of G. Oblongata red algae as a multi products source for biotechnological, medical, nutraceutical and pharmaceutical applications due to highly antioxidant and anti-inflammatory capacities even although more investigations are required for separating, purifying and characterizing these bioactive compounds.

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Section: Introductionmentioning

confidence: 99%

Red algae natural products for prevention of lipopolysaccharides (LPS)-induced liver and kidney inflammation and injuries

Nabil-Adam

Shreadah

2021

Bioscience Reports

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“…Nitrate is the most essential and major nutrient for phytoplankton growth. It is considered the most and predominate inorganic compound in the aquatic system (Abdel-Halim et al, 2007).…”

Section: Nitrate (No 3 -N)mentioning

confidence: 99%

Seasonal Variation of Water Physicochemical Parameters and Trace Metals in Lake Manzala, Egypt

El-Saharty¹

2014

مجلة جامعة الملك عبدالعزيز-علوم البحار

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Manzala lake is the largest costal lake east Nile Delta and is considered as one of the most dynamic ecosystems along the Egyptian coast on the Mediterranean Sea. It is ecologically and economically important due to biological diversity, valuable fish, and wild life resources. The lake has undergone a considerable reduction in surface area due to input from human activities. This costal Lake constitutes an estuarine environment with a very particular behavior. The purpose of this investigation is to measure the general hydrological parameters (salinity, temperature, pH, dissolved oxygen, nitrate, nitrite, ammonia, phosphate) and concentration of trace metals (Fe, Zn, Cu, Mn, Cd, Pb) at seven stations in the Lake during four seasons (Jan.-Oct. 2012). The salinity ranged between(0.55-36) depending on seasonal bases. The pH, dissolved oxygen, nitrate, nitrite, ammonia, and phosphate had weak relation with salinity. The temperature of the lake varied according to the seasons. The pH of water ranged between (5.2-8.8). Dissolved oxygen (DO) of the water decreased with temperature, and increased with photosynthetic activity of the producers. There was strong correlation found between both Fe and Mn concentrations with salinity while the concentration of Cd, Cu, and Zn showed negative correlation and salinity.The concentrations of the measured trace metal were found in the following order Fe > Mn > Cu > Zn > Pb > Cd. Metal concentrations in the water indicate an increase in the pollution load due to movement of fertilizers, agricultural water, prawn cultivation and Motor Boat operations. An immediate action from the stakeholders is required in order to protect the lake from further pollution.

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“…The growing increase in Egyptian population, as well as urbanization expansion; lead to a corresponding increase in industrial, agriculture, urban effluents that discharged into the aquatic environment of Egypt [8][9][10][11][12][13][14][15], leading to water quality deterioration. Poor quality water can lead to water borne diseases as well as death of aquatic life [16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Anthropogenic Effluents Impacts on the Water Quality Using Principal Component Analysis: A Case Study of Abu-Qir Bay-Alexandria-Egypt

Shreadah¹,

El-Sayed²,

Taha³

et al. 2019

IJEMA

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Background: The growing increase in Egyptian population, as well as urbanization expansion; lead to a corresponding increase in industrial, agriculture, urban effluents that discharged into the aquatic environment of Egypt. Objective: This study was conducted to evaluate the alteration occurred in some water quality characteristics of different water bodies subjected to different types of pollutants. Methods: Different physicochemical parameters, nutrient salts, total dissolved copper, and total dissolved carbohydrate were measured according to advanced experimental methods and analytical techniques. Results: The results of the hydrochemical parameters revealed that the temperature ranges for Abu-Qir drain waste water and Abu-Qir Bay seawater were normal. The values of salinity for waste water and seawater were (0.19-0.43‰) and (30.2-32.2‰), respectively which are much lower than that of the Mediterranean seawater (38.50‰) due to the discharge of huge amounts of fresh waters into Abu-Qir Bay. The pH values varied from one drain to another according to the geographical position and the amount of waste waters discharged into the area. Dissolved oxygen for waste water and seawater are ranged from a complete depletion to 9.42 mg/l and from 4.53to 4.87mg/l, respectively. On the meantime the range values of oxidizable organic matter for waste water and seawater were 21.6-84.0mg/l and 14.4-42.4mg/l, respectively reflecting the high loads of organic matters added into Abu-Qir drain from different companies. On the other hand, the range values of ammonia varied between 10.20 and 95.6µM for waste water and between 7.50 and 10.10µM for seawater; respectively leading to eutrophication problems in the Bay. The nitrite for waste water and seawater were 2.60-32.40µM and 5.33-6.30µM, respectively, while the range values of nitrate for waste water and seawater were 0.74-36.74µM and 3.51-13.51µM; respectively. The range values of phosphate for waste water were 3.36-21.36µM, while it was 1.30-11.62µM for seawater. It is found that the amount of phosphate in the seawater is small compared to that of waste waters. Generally speaking, the waste and seawaters of the investigated area exhibited high silicate concentrations. Dissolved copper concentrations in Abu-Qir drain and Abu-Qir Bay ranged from 2.80 to 11.58µg/l and from 4.80 to 5.68µg/l; respectively. The range values of TDCHO for wastewater was 0.16-0.92µg/l and for seawater was 0.77-3.15µg/l. Conclusion: It is concluded from factor analysis (FA) that the investigated hydrochemical parameters are the major controlling factors in the distribution patterns of copper and TDCHO in both Abu-Qir drain and Abu-Qir Bay affecting seriously their water quality.

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Environmental Studies on the Aqaba Gulf Coastal Waters during 2011-2013

Cited by 20 publications

References 43 publications

Red algae natural products for prevention of lipopolysaccharides (LPS)-induced liver and kidney inflammation and injuries

Red algae natural products for prevention of lipopolysaccharides (LPS)-induced liver and kidney inflammation and injuries

Seasonal Variation of Water Physicochemical Parameters and Trace Metals in Lake Manzala, Egypt

Evaluation of Different Anthropogenic Effluents Impacts on the Water Quality Using Principal Component Analysis: A Case Study of Abu-Qir Bay-Alexandria-Egypt

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