Life Science Journal


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    ABSTRACT: It is well known that foodborne infections can be transmitted to humans via vegetable consumption. The study reported here aimed to determine the prevalence of parasitic contamination on raw vegetables sourced from the mountainous southwestern region of the Kingdom of Saudi Arabia. The vegetables examined in this work included lettuce, green onions, cucumbers, carrots, spinach, tomatoes, parsley, ginger, radish and arugula. For each vegetable type, 20 samples were collected from the four markets included in the study, resulting in 800 samples used in subsequent analysis. More specifically, 200 samples were sourced from each main market of the main four cities located on the Sarawat mountain range of the Kingdom of Saudi Arabia, namely Altaif, Albaha, Baljurish and Abha. These samples were analyzed by a concentration method and examined by light microscopy. Helminth ova were detected in the examined vegetables. While the lowest contamination with helminth ova was detected in cucumbers, tomatoes and green onions, the highest contamination was observed in radishes, parsley, carrots, spinach and ginger. Moreover, the highest helminth ova contamination was seen in samples from Albaha (n = 38), followed by Baljurish (n = 30), Altaif (n = 25) and Abha (n = 22). Trichuris trichiura and Trichostrongylus were the most commonly detected infectious agents in the vegetables, while Hemenolepis nana was the least prevalent. The contamination of vegetables with infective ova emphasizes the need for adequate preventative measures that can assist in avoiding the transmission of diseases
    Life Science Journal 09/2014; 11(9):707-711.
  • Life Science Journal 07/2014; 11(9s):471-481.
  • Life Science Journal 07/2014; 11(7s):511-519..
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    ABSTRACT: Abstract: Early infant feeding practices can be considered as a target for later obesity prevention. Investigating whether some adipokines are involved is particularly interesting. The aim of this study was to investigate leptin, adiponectin and vaspin concentrations under different feeding practices in early infancy and their relation with growth and adiposity indices. Sixty healthy term infants, 33 males and 27 females, aged 2-5 months were grouped according to feeding practices into 29 exclusively breastfed, 14 exclusively formula-fed and 17 mixed-fed, and their leptin, adiponectin and vaspin were quantified and correlated to infant weight-for-age, length-for-age, weight-forlength, body mass index (BMI)-for-age and head circumference-for-age WHO Z-scores. Neither anthropometric Zscores of males and females nor leptin, adiponectin or vaspin were affected by feeding practice. These adipokines were also not affected by age. In contrast to adiponectin and vaspin, leptin exhibited marked gender differences (p<0.05) in breastfed, formula-fed and mixed-fed infants. When all infants were analyzed together, leptin correlated positively (p<0.0001) with weight-for-age (r=0.68), length-for-age (r=0.62), weight-for-length (r = 0.44), BMI-forage (r=0.53) and head circumference-for-age (r=0.25) Z-scores. With the exception of the latter, concordant correlations for leptin were obtained when study groups were processed separately according to feeding practices. Both adiponectin and vaspin did not correlate with any anthropometric Z-scores. In conclusions, the results of our study do not support that variation of infant feeding practice has an important impact on leptin, adiponectin and vaspin concentrations in early infancy. Leptin seems to be gender-dependent and reflects growth and adiposity patterns in early infancy, independent of feeding practice.
    Life Science Journal 07/2014; 11(10):89-97.
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    ABSTRACT: Abstract: Five desert plants; namely, Bidens bipinnata, Cyperus alternifolius, Desmostachya bipinnata, Glossostemon bruguieri, and Schouwia thebica were investigated for their antimicrobial activity. The ethanolic extract inhibited the growth of some pathogenic bacteria including Enterococcus faecalis,Escherichia coli, Moraxella lacunata, Proteus merabiles, Pseudomons aeruginosa, Salmonella typhi, Serratia marcesens, Bacillus subtilis, Micrococcus luteus, Sarcina ventricull, Staphylococcus aureus and pathogenic fungi including Candida albicans, Candida tropicalis, Aspergillus flavus, A. fumigates and Penicillium chrysogenum. The extracts of Cyperus alternifolius and Desmostachya bipinnata were similar in their phytochemical constituents, while the chemical groups of Bidens bipinnata were similar to those in Schouwia thebica. Traces of saponins were only present in Glossostemon bruguieri.
    Life Science Journal 06/2014; SSN:1097-8135(7):343-349.

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