1.Isolation and efficacy of entomopathogenic fungus (Metarhizium anisopliae) for the control of Aedes albopictus Skuse larvae:suspected dengue vector in Pakistan
Bilal Hazrat ; Hassan Ali Soaib ; Khan Akram Imtinan
Asian Pacific Journal of Tropical Biomedicine 2012;(4):298-300
Objective: To isolate the entomopathogenic fungus Metarhizium anisopliae (M. anisopliae) in the local environment, and evaluate its efficacy against the suspected dengue vector Aedes albopictus in Pakistan. Methods: According to the standard procedure, M. anisopliae was isolated from the dead mosquitoes which were collected from the field or dead after the collection. Bioassay was performed to determine its efficacy. Results: The results indicated that M. anisopliae had larvicidal effect with LC50 value 1.09×105 and LC90 value 1.90×1013 while it took 45.41 h to kill 50%of tested population. Conclusions: Taking long time to kill 50% population when compare with the synthetic insecticides, is the only drawback for the use of entomopathogenic fungus but these bio-pesticides are safe for the use.
2.Phytochemical screening and antioxidant activity of Lebanese Eryngium creticum L.
Hussein FARHAN ; Fatima MALLI ; Hassan RAMMAL ; Akram HIJAZI ; Ali BASSAL ; Nawal AJOUZ ; Bassam BADRAN
Asian Pacific Journal of Tropical Biomedicine 2012;(z3):1217-1220
Objective: To determine the phytochemical screening and quantification of total phenolics contents in fresh Eryngium creticum (E. creticum) leaves and stems extract and to evaluate its total antioxidant activity. Methods: Quantification of total phenolics contents in fresh E. creticum leaves and stems extract and evaluation of its total antioxidant activity, were done using the spectrophotometric analyses. Results: The consumption of 100 g of fresh E. creticum leaves and stems could provide antioxidants equivalent to (78.50±0.80) mg of vitamin C and (50.42±0.50) mg of vitamin C, respectively. Conclusions: From this study, it can be concluded that E. creticum can be interesting to prevent diseases directly linked to oxidative stress.
3.Chemical composition and antioxidant activity of a Lebanese plant Euphorbia macroclada schyzoceras
Hussein FARHAN ; Hassan RAMMAL ; Akram HIJAZI ; Ahmad DAHER ; Mohamad REDA ; Hussein ANNAN ; Ali CHOKR ; Ali BASSAL ; Bassam BADRAN
Asian Pacific Journal of Tropical Biomedicine 2013;(7):542-548
Objective:To determine the chemical composition, total phenolic and total flavonoid contents of the crude extracts from leaves and stems of a Lebanese plant Euphorbia macroclada schyzoceras (E. macroclada), and to evaluate their antioxidant potential using DPPH, H2O2, and chelating of ferrous ions tests. Methods:Quantification of the total phenolic and total flavonoid contents of the crude extracts from leaves and stems and the antioxidant activities were evaluated using spectrophotometric analyses. The chemical composition has been estimated using different techniques such as IR, LC/MS and NMR. Results:Ethanolic extract from leaves of E. macroclada was better than aqueous extract and showed higher content in total phenolic and total flavonoid than found in the stems. On the other hand, using DPPH and H2O2 tests, this extract from leaves showed higher antioxidant capacity than aqueous extract. However, using the chelating of ferrous ions test, the antioxidant activity of the aqueous extract of both stems and leaves was stronger than that of ethanolic once. The chemical composition of the whole plant showed the presence of some aromatic compounds and fatty acids. Conclusions:Both ethanolic and water extracts from both parts of this plant are effective and have good antioxidant power. So, this plant can be used in the prevention of a number of diseases related to oxidative stress.
4.What is the effect of initial implant position on the crestal bone level in flap and flapless technique during healing period?.
Mohammed Jasim AL-JUBOORI ; Shaifulizan AB RAHMAN ; Akram HASSAN ; Ikmal Hisham BIN ISMAIL ; Omar Farouq TAWFIQ
Journal of Periodontal & Implant Science 2013;43(4):153-159
PURPOSE: The level of the implant above the marginal bone and flap design have an effect on the bone resorption during the healing period. The aim of this study is to detect the relationship between the level of the implant at the implant placement and the bone level at the healing period in the mesial and distal side of implants placed with flapless (FL) and full-thickness flap (FT) methods. METHODS: Twenty-two nonsubmerged implants were placed with the FL and FT technique. Periapical radiographs were taken of the patient at implant placement, and at 6 and 12 weeks. By using computer software, bone level measurements were taken from the shoulder of the healing cap to the first bone implant contact in the mesial and distal side of the implant surface. RESULTS: At 6 weeks, the correlation between the crestal bone level at the implant placement and crestal bone level of the FT mesially was significant (Pearson correlation coefficient=0.675, P<0.023). At 12 weeks, in the FT mesially, the correlation was nonsignificant (Spearman correlation coefficient=0.297, P<0.346). At 6 weeks in the FT distally, the correlation was nonsignificant (Pearson correlation coefficient=0.512, P<0.107). At 12 weeks in the FT distally, the correlation was significant (Spearman correlation coefficient=0.730, P<0.011). At 6 weeks in the FL mesially, the correlation was nonsignificant (Spearman correlation coefficient=0.083, P<0.809). At 12 weeks in the FL mesially, the correlation was nonsignificant (Spearman correlation coefficient=0.062, P<0.856). At 6 weeks in the FL distally, the correlation was nonsignificant (Spearman correlation coefficient=0.197, P<0.562). At 12 weeks in the FL distally, the correlation was significant (Pearson correlation coefficient=0.692, P<0.018). CONCLUSIONS: A larger sample size is recommended to verify the conclusions in this preliminary study. The bone level during the healing period in the FT was more positively correlated with the implant level at implant placement than in the FL.
Bone Resorption
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Dental Implantation
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Humans
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Oral Surgical Procedures
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Software
5.Spinal Brucellosis: Rare But Should Not Be Forgotten
Nik Hassan N ; Nurul Ain MI ; Juhara H ; Azizul Akram S ; Johaimey J
Malaysian Orthopaedic Journal 2018;12(Supplement A):168-
6. Efficiency of combining pomegranate juice with low-doses of cisplatin and taxotere on A549 human lung adenocarcinoma cells
Nasser MOHAMAD ; Hijazi AKRAM ; Sayed BOUCHRA ; Jamal ZEINAB ; Ibrahim SAJIDA ; Rammal HASSAN ; Sayed BOUCHRA ; Al Rekaby ABD-EL-AMEER ; Nasser MOHAMMED
Asian Pacific Journal of Tropical Biomedicine 2018;7(1):19-24
Objective: To test the coalescence effect of two chemotherapy drugs at low effective dose (cisplatin and taxotere) combined with pomegranate juice on A549 cancer cells. Methods: Infrared spectroscopy method is a qualitative test that was performed to ensure the existence of the phytochemicals providing the antioxidant activity through the presence of the hydroxyl group (-OH). The viability of A549 cell line and normal MCs was tested using the neutral red uptake, Clonogenic survival, XTT and Cell migration assays. Results: Our results showed that this combination firstly led to a greater decrease in the viability of cells comparing to those treated with chemotherapy drugs alone, and secondly led to a significant reduction in cell migration. Conclusions: These data suggest a synergistic effect between the pomegranate and cisplatin which makes probably this combination a powerful option for treating lung adenocarcinoma and in parallel minimizing the systemic side effects.