Search

Your search keyword '"Awad, E"' showing total 123 results
Start Over "Awad, E" Publisher springer international publishing
123 results on '"Awad, E"'

2. In vivo evaluation of the antiretroviral activity of Melia azedarach against small ruminant lentiviruses in goat colostrum and milk.

Author

Souza SCR, Pinheiro RR, Peixoto RM, de Sousa ALM, Andrioli A, Lima AMC, Mendes BKM, Magalhães NMA, Amaral GP, and Teixeira MFDS

Subjects
Animals, Female, Pregnancy, Milk, Colostrum, Lentivirus, Goats, Ruminants, Plant Extracts, Melia azedarach, HIV Infections, Goat Diseases drug therapy, Acetates
Abstract

This study aimed to evaluate in vivo the use of the extract from the leaves of Melia azedarach in the ethyl acetate fraction at a concentration of 150 µg/mL as an antiretroviral treatment against small ruminant lentiviruses (SRLV) in goat colostrum, and milk with a 90-min action. Two groups of six kids were treated with the extract. One group received three supplies of colostrum from does naturally positive for SRLV, treated with the ethyl acetate fraction of M. azedarach (EAF-MA) for three days, while the other group consumed milk from does also carrying the virus with the respective extract twice a day for five days. After undergoing treatment, all animals began to receive thermized milk until weaning (60 days) and were monitored for six months using nested polymerase chain reaction (nPCR) and western blot (WB) tests. The study revealed cumulative percentages of positive animals in WB or nPCR in the milk group of 66.66% on the seventh day, 83.33% in the following week, and 100% at 120 days, while the colostrum group showed values of 66.66% at 14 days, 83.33% at 90 days, and 100% at 120 days. Variation and intermittency were observed in viral detection, but all animals tested positive in WB or nPCR at some point. A potential delay in infection was observed, which was more significant in the colostrum group. The need for the combination of serological and molecular tests for a more efficient detection of the disease is also emphasized., (© 2023. The Author(s) under exclusive licence to Sociedade Brasileira de Microbiologia.)

Published
2024
Full Text
View/download PDF

3. Cysteine-induced alterations in physicochemical parameters of oat (Avena sativa L. var. Scott and F-411) under drought stress.

Author

Perveen S, Iqbal M, Saeed M, Iqbal N, Zafar S, and Mumtaz T

Abstract

Introduction: Drought is one of the major abiotic stresses that drastically reduces crop yield throughout the world. Being precursor of glutathione biosynthesis and involvement in other metabolic processes, cysteine (Cys) has been shown to alter growth and development in plants. In this context, we investigated Cys-induced physicochemical alterations in oat (Avena sativa L. var. Scott and var. F-411) plants under drought stress., Methods: There were two levels of drought stress, i.e., control (100% field capacity) and drought (50% field capacity) and three levels of foliar application of Cys, i.e., 0, 10, and 20 mM. Experimental design was completely randomized block design., Results: Drought stress significantly decreased growth parameters, chlorophyll (Chi) contents, while increased leaf membrane permeability (MP), ascorbic acid (AsA), and activity of catalase (CAT) and peroxidase (POD) enzymes. Foliar application of varying Cys levels significantly increased root fresh weight, root length, photo synthetic pigments (chl. a and b), AsA contents in var. Scott, and shoot length, total free amino acids, total phenolics and free proline contents in var. F-411., Discussion: Of the two oat varieties, var. Scott proved better in root fresh weight, root length, chl. a and b contents, and total phenolic contents, while var. F-411 was higher in the values of shoot length, MP (%), total free amino acids, and free proline contents. Thus, on the basis of strong root system, total phenolics, and more photosynthetic contents (chl. a and b contents), var. Scott could be grown under semi-arid environments than that of var. F-411., (© 2019. Akadémiai Kiadó Zrt.)

Published
2019
Full Text
View/download PDF

40. Inulin dietary supplementation attenuates the stress induced by pursuit/capture/atmospheric exposure and improves innate immune response in hybrid catfish (Pseudoplatystoma reticulatum♀ × Leiarius marmoratus♂) after exposure to Aeromonas hydrophila

Author

do Nascimento Veiga, Pamela Thainara, Rodrigues, Tatiane Auxiliadora Ribeiro, Fantini-Hoag, Letícia, Rodrigues, Robson Andrade, Pilarski, Fabiana, Owatari, Marco Shizuo, Martins, Maurício Laterça, and de Campos, Cristiane Meldau

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results