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RISS 인기검색어
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- 저자 : Hussein Hamdi (검색결과 2 건)
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Mosquitocidal and repellent activities of essential oils against Culex pipiens L.
Al‐Sarar Ali S.,Hussein Hamdy I.,Abobakr Yasser,Al‐Zabib Ali A.S.,Bazeyad Abdulqader Y. 한국곤충학회 2020 Entomological Research Vol.50 No.4
Plants are a prospective source of novel natural insect repellents and botanical insecticides. This study was conducted to investigate the chemical composition of the essential oils of three plants growing in Saudi Arabia, namely Ducrosia anethifolia, Achillea fragrantissima, and Teucrium polium; and to evaluate their potential mosquitocidal and repellent activities against adult female Culex pipiens L. The main components of the three oils were found to be decanal (28.9%) and chrysanthenyl acetate (10.04%), (D. anethifolia); sabinyl acetate (35.79) and artemesia ketone (18.28%) (A. fragrantissima); α-cadinol (49.53%) and δ-cadinene (10.23%) (T. polium). The oil of A. fragrantissima was the most toxic (LC50- = 0.11 μL/L air) followed by D. anethifolia and T. polium with LC50 values of 5.22 and 25.98 μL/L air, respectively. T. polium oil was the most repellent (292 min at 2 μL/cm2 ), followed by D. anethifolia and A. fragrantissima. The results indicate that the essential oils have a potential fumigant insecticidal and repellent activities for mosquito control.
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A Rare Cause of Thoracic Spinal Cord Compression by Multiple Large Tarlov Cysts
Ahmed-Salem Kleib,Sidi-Mohamed Salihy,Hussein Hamdi,Romain Carron,Outouma Soumaré,Ahmed-Salem Kleib 대한신경손상학회 2018 Korean Journal of Neurotrauma Vol.15 No.1
Spinal extradural arachnoid cyst (SEAC) is a rare cause of spinal cord compression. Bifocal location of thoracic and sacralSEACs is rarely reported in the literature. We report a case of thoracic spinal cord compression by SEAC associated withasymptomatic multiple sacral Tarlov cysts (TC). The surgical management and postoperative outcome of the patient arediscussed. A 34-year-old woman was referred to the hospital for acute thoracic pain with a history of chronic long-standing back pain. She complained of walking diffculties. Neurological examination demonstrated incomplete spastic paraplegia with sensory level in T9. Magnetic resonance imaging revealed a large cystic formation from T7-11 and at the levelof the sacrum. We performed laminectomies at the level of interest from T7-11. The cysts were dissected from the underlying dura after removal of the cerebrospinal fluid. We found nerve tissue in the cysts. We excised the cyst and preservedthe nerve roots. Subsequently, a duraplasty was performed with autologous grafts from the lumbar fascia. The conditionof the patient improved after surgery and he was recovering well at follow-up. Although the surgical treatment of TC iscontroversial, especially at the sacral lumbar level, decompression at the dorsal level in this case is indisputable
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