Untitled

Khallaf, Elsayed A.; Galal, Mansour; Authman, Mohammad M. N.

doi:10.1023/a:1026156222685

Cited by 72 publications

(13 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many factors can shape the CF, such as sex, season, nutrition status, or water quality and temperature (Garcia-Abiado et al, 2004;Swansburg et al, 2002;Khallaf et al, 2003;Nehemia et al, 2012). Independently of the particular influences, Data given as mean (coefficient of variation).…”

Section: Discussionmentioning

confidence: 99%

Untitled

Jordanova¹,

Rebok²,

Naskovska³

et al. 2016

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

Macrophages are involved in innate and acquired immune responses, being key players in immunotoxicology. Changes in the quantities of pigmented macrophage aggregates (PMQ) in fish are often used as biomarkers of pollution. Most studies offer only qualitative data on PMQ changes, and effects of age, sex and season are poorly known. We present a stereological study of the relative and total volumes of PMQ in the barbel, Barbus peloponnesius spleen. Our focus is to disclose influences of age, sex and season on PMQ, and check if the there is any positive association with aging. The females had a significantly higher spleen and body weights and length. PMQ loaded with lipofuscin/ceroid and hemosiderin were dispersed throughout both spleen pulps. Seasons impacted on PMQ, despite no too markedly. Differences existed between sexes, with males having significantly higher relative volumes of PMQ: the total volumes had similar tendencies. The volumes of PMQ were positively associated with age. The new data reinforce the importance of studying influences of both intrinsic and extrinsic factors that model the quantities of PMQ so to better interpret their changes seen in biomonitoring works.

show abstract

Section: Discussionmentioning

confidence: 99%

Untitled

Jordanova¹,

Rebok²,

Naskovska³

et al. 2016

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

“…Safe drinking water is one of the basic requirements for human health, development and wellbeing (1). Access to safe drinking water and hygienic living conditions is a global concern and these issues are especially serious in developing countries (2).…”

Section: Introductionmentioning

confidence: 99%

Perception and Attitude of Consumers' Towards Packaged Drinking Water in Addis Ababa, Ethiopia

Tilahun¹,

Beshaw²

2019

Preprint

View full text Add to dashboard Cite

Descriptive research design was used to select 200 respondents (i.e., 100 from each study places) following purposive sampling technique on two study areas (Market; Living). Personal observation and interview with retailers were done to triangulate the collected data from the formal survey. The collected data was analyzed using SPSS version 20 software program. Descriptive statistical measurements, Index and multinomial regression model was calculated to assess the relationship between customers point of emphasis during packaged water buying and respondents demographic variables. Majority of the respondent who frequently purchase packaged water generated a monthly income between 5000 and 10000 Birr. Television and radio was ranked first compare to other Media. Living place customers were more health concerned as compared to market place customers. Market place customer’s primarily give emphasis to price of packaged water. Almost all (97%) customers did not have the awareness towards packaged water standards. Only 86(43%) of the total respondents checked the chemical composition, of which 74(85%) of the respondents did not understand it. Customers sex, educational level and health status showed significant relationship with choice of packaged water quality -1.42(p<0.05), price -2.45(P<0.01) and health status -1.80(P<0.05) in market place and living places, respectively.

show abstract

“…Furthermore, these variations might be influenced by the reproductive status and general physiological condition of the fish and thereby affecting their sensitivity to E-EDCs [ 65 ]. Many studies have reported that fish growth can be reduced in polluted water [ 66 , 67 ]. The inhibition of gonadal growth could be attributed to xenosteroids found in the effluents discharged from the Bahr El-Baqar drain into the investigated sites.…”

Section: Discussionmentioning

confidence: 99%

Multiple Xenosteroid Pollutants Biomarker Changes in Cultured Nile Tilapia Using Wastewater Effluents as Their Primary Water Source

Zahran

Elmetwally

Awadin

et al. 2020

Animals

View full text Add to dashboard Cite

This study was undertaken to screen levels of xenosteroids (estrogenic endocrine disrupting chemicals/E-EDCs) in Nile tilapia (Oreochromis niloticus) fish farms subjected to water fill from the drain at three sites S1 (highly polluted), S2 (moderately polluted), and a putative reference site (RS). Biometric, hormonal, gene expression, and histopathological analysis were investigated. Testosterone, progesterone, and zeranol residues were detected at (0.12–3.44 µg/L) in water samples of different sites. Bisphenol-A (BPA) exhibited a very high concentration (6.5 µg/mL) in water samples from S1. Testosterone, 17β-estradiol residues were detected in fish tissues from all sites at (0.16–3.8 µg/Kg) and (1.05–5.01 µg/Kg), respectively. BPA residues were detected at a very high concentration in the liver and muscle of fish collected from S1 at higher levels of 25.9 and 48.07 µg/Kg, respectively. The detected E-EDCs, at different sites, particularly BPA, reduced the somatic and testicular growth among sites and oversampling time points. Meanwhile, hepatosomatic index (HSI) was significantly increased in S1 compared to S2. All analyzed genes estrogen receptor-type I (er-I, er-ɑ) and II (er-II, er-ß1), polypeptide 1a (cyp19a1), SRY-box containing gene 9 (sox9), and vitellogenin (vtg) and gonadotropin hormones (luteinizing hormone (LH), follicle-stimulating hormone (FSH)), testosterone, 17β-estradiol, and anti-Mullerian hormone (AMH) were significantly expressed at S1 compared to other sites. Histopathology was more evident in S1 than other sites. These findings warrant immediate strategies development to control aquatic pollution and maintain fish welfare and aquaculture sustainability.

show abstract

Untitled

Cited by 72 publications

References 15 publications

Untitled

Untitled

Perception and Attitude of Consumers' Towards Packaged Drinking Water in Addis Ababa, Ethiopia

Multiple Xenosteroid Pollutants Biomarker Changes in Cultured Nile Tilapia Using Wastewater Effluents as Their Primary Water Source

Contact Info

Product

Resources

About