Browsing Biological & Environmental Sciences by Title
Now showing items 196-215 of 791
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Deregulation of cell growth and apoptosis in UV-induced melanomagenesis
( Frontiers in Bioscience , 2020 , Article Review)We have previously characterized the role of p16/Rb in coordinating the early events in UVB-irradiated skin. As an extension to this work, normal melanocytes and mutant p16-inducible melanoma cell models were employed to ... -
Design and Microinjection of Morpholino Antisense Oligonucleotides and mRNA into Zebrafish Embryos to Elucidate Specific Gene Function in Heart Development
( MyJove Corporation , 2022 , Article)The morpholino oligomer-based knockdown system has been used to identify the function of various gene products through loss or reduced expression. Morpholinos (MOs) have the advantage in biological stability over DNA oligos ... -
Detection of multimycotoxins in camel feed and milk samples and their comparison with the levels in cow milk
( Wiley Open Access , 2022 , Article)Camel milk has been considered as an important source of nutrients and is commercialized in many countries of the world including the Middle East. This study aimed to investigate the presence of mycotoxins in camel feed ... -
Detection of toxigenic mycobiota and mycotoxins in cereal feed market
( Elsevier Ltd , 2018 , Article)The present study was designed to investigate the occurrence of mycotoxins and toxigenic mycobiota in cereals used as animal feed in a Qatari market. Aflatoxins (AFs) and ochratoxin A (OTA) were detected in 94 and 44% of ... -
Determination of aflatoxins in coffee by means of ultra-high performance liquid chromatography-fluorescence detector and fungi isolation
( Taylor and Francis Ltd. , 2020 , Article)In this study, fourteen coffee samples were collected from local markets in Doha, Qatar according to different variables i.e. packed or unpacked, beans or powder, roasted or raw bean samples. The coffee samples were subjected ... -
Determination of Bromate, Perchlorate and selected ions in drinking water supplies in Qatar
( OMICS , 2017 , Conference Paper)About 99% of the potable water used in Qatar is desalinated and Qataris spend approximately 15 million dollars in importing bottled water (90 million L), as the public thinks it is of better quality than the tap water. ... -
Determination of Pesticide Residues of Organochlorine in Some Local and Imported Foods in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Fresh fruit and vegetables are an important part of a healthy diet as they are a significant source of vitamins and minerals. However, fresh fruits and vegetables can also be a source of toxic substances such as pesticides. ... -
Determination of the levels of Particulate Matter 25 and 10 and their elemental Composition in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Particulate matter (PM) pollution is one of the major environmental pollution issues severely affecting human health and air quality all over the world. Based on the recent World Health Organization (WHO) report, PM levels ... -
Determination of total flavonoid content by aluminum chloride assay: A critical evaluation
( Elsevier , 2021 , Article)Flavonoids are important natural bioactive compounds. Quantitation of total flavonoid content (TFC) is widely performed using the aluminum chloride colorimetric assay against a flavonoid standard assuming equal responses ... -
Determination of vascular reactivity of middle cerebral arteries from stroke and spinal cord injury animal models using pressure myography
( Humana Press Inc. , 2016 , Book chapter)Stroke and other neurovascular derangements are main causes of global death. They, along with spinal cord injuries, are responsible for being the principal cause of disability due to neurological and cognitive problems. ... -
Detoxification of mercury pollutant leached from spent fluorescent lamps using bacterial strains
( Elsevier Ltd , 2016 , Article)The spent fluorescent lamps (SFLs) are being classified as a hazardous waste due to having mercury as one of its main components. Mercury is considered the second most toxic heavy metal (arsenic is the first) with harmful ... -
Development of a novel tailored ion-imprinted polymer for recovery of lithium and strontium from reverse osmosis concentrated brine
( Elsevier , 2022 , Article)This study aims to prepare ion-imprinted polymer (IIP) with the benefit of a metal-based sorbent, which is fabricated to selectively adsorb lithium (Li+) from aqueous solutions, and in an attempt to remove strontium (Sr2+). ... -
Development of novel thin film composite reverse osmosis membranes for desalination
( American Institute of Physics Inc. , 2019 , Conference Paper)Microporous Polyetherimide (PEI) membranes were prepared by wet phase inversion at different temperatures. The thin film composites (TFC) of polyamide on microporous PEI were prepared using meta-Phenylenediamine (MPD) and ... -
Diet of the Omani Owl, Strix butleri, near Nakhal, Oman
( Taylor and Francis Ltd. , 2016 , Article)The diet of the Omani Owl, Strix butleri, was studied for the first time based on re- cently collected pellets. A total of 22 individual prey items represented three mam- mals (all rodents), at least two undetermined gecko ... -
Dietary L-carnitine and vitamin-E; a strategy to combat ochratoxin-A induced immunosuppression
( Elsevier Ltd , 2018 , Article)This study aimed to evaluate the effect of dietary ochratoxin A (OA), in the presence and absence of L-carnitine (LC) and vitamin E (VE), on the humoral immune responses of White Leghorn cockerels (WLC). One-day old white ... -
Dietary Trichosporon mycotoxinivoron modulates ochratoxin-A induced altered performance, hepatic and renal antioxidant capacity and tissue injury in broiler chickens
( Elsevier Ireland Ltd , 2021 , Article)Ochratoxin A (OTA), an important fungal metabolite in foods and feeds has been shown to induce oxidative stress and cellular injuries to human and animal subjects. This study was designed to investigate the mode of action ... -
Different molecular pathways are disrupted in Pyoderma gangrenosum patients and are associated with the severity of the disease.
( Nature Research , 2023 , Article)Pyoderma gangrenosum (PG) is a rare inflammatory skin disease classified within the spectrum of neutrophilic dermatoses. The pathophysiology of PG is yet incompletely understood but a prominent role of genetics facilitating ... -
Differential distribution of vitamin D receptor (VDR) gene variants and its expression in systemic lupus erythematosus
( Wiley , 2022 , Article)Systemic lupus erythematosus (SLE) is a multifactorial autoimmune disorder that displays an important genetic background. Vitamin D3 (VD3) through its receptor (VDR) plays an important immunomodulatory role in autoimmune ... -
Differential oxidative stress responses to methanol in intraperitoneally exposed rats: Ameliorative effects of Opuntia vulgaris fruit extract
( SAGE Publications , 2012 , Article)Methanol is primarily metabolized by oxidation to formaldehyde and then to formate. These processes are accompanied by formation of superoxide anion and hydrogen peroxide. This article reports data on the effect of ... -
Differential survival of nursery-reared Acropora cervicornis outplants along the Florida reef tract
( Wiley-Blackwell , 2020 , Article)In recent decades, the Florida reef tract has lost over 95% of its coral cover. Although isolated coral assemblages persist, coral restoration programs are attempting to recover local coral populations. Listed as threatened ...