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Computation of Some Geometric Properties for New Nonlinear PDE Models

Applied Mathematics 2011年第6期2卷 666-675页

作者： Nassar Hassan Abdel-All Mohammed Abdullah Abdullah Hamad Mohammed Abdullah Abdel-Razek amal aboelwafa khalil 不详

The purpose of the present work is to construct new geometrical models for motion of plane curve by Darboux transformations. We get nonlinear partial differential equations (PDE). We have obtained the exact solutions of the resulting equations using symmetry groups method. Also, the Gaussian and mean curvatures of Monge form of the soliton surfaces have been calculated and discussed.

关键词： Motion of Curve Darboux Transformations Gaussian and Mean Curvatures Symmetry Groups

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Immunocytochemical identification and distribution of the cell types in the pituitary gland of <i>Bagrus bayad</i>(<i>Teleostei, Bagridae</i>)

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World Journal of Neuroscience 2012年第1期2卷 23-31页

作者： Mostafa A. Mousa Noha A. khalil amal M. amal M. Hashem Fish Reproduction Laboratory National Institute of Oceanography and Fisheries Alexandria Egypt Zoology Department Faculty of Science Zagazig University Zagazig Egypt

Immunocytochemical identification of the different cell types in the pituitary gland of Bagrus bayad was performed using antisera against mammalian (human and rat) and piscine hormones. The adenohypophysis was composed of rostral pars distalis (RPD), proximal pars distalis (PPD) and pars intermedia (PI). Prolactin and adrenocorticotrophic cells were located in the rostral pars distalis of the pituitary. Gonadotrophic and growth hormone cells were distributed in the proximal pars distalis, but gonadotrophic cells appear also at the border of the pars intermedia. Somatolactin cells, as well as alpha-melanotrophic cells were located in the pars intermedia of B. bayad pitui-tary. The prolactin (PRL) cells were distributed in the RPD stained with orange G and showed strong immunoreactivity with antiserum to chum salmon. The adrenocorticotrophic (ACTH) cells were lead hema-toxylin-positive (PbH+) and showed strong im- mu-noreactivity with anti-human ACTH;these cells bor-dered the neurohypophysis and grouped in islets be-tween PRL cells in the RPD. Growth hormone (GH) cells were densely distributed with the gonadotrophic (GTH) cells in the PPD. They were orange G positive and reacted with antiserum to chum salmon. GTH cells were located in the central area of the PPD and in the external border of the PI. These cells were Alcyan Blue and PAS positive, and immunostained with anti-chum salmon GTH Iβ and anti-chum salmon GTH IIβ. In addition, antiserum to rat thyrotropin stimulating hormone β (TSHβ) reacted positively to the GTH cells. These results suggest that GTH I, GTH II and TSH are synthesized in the same cells in the pituitary of B. bayad. The PI was composed mainly of PbH+ cells and a PAS+ cell adjacent to the neurohypophysis. The PAS+ cells from the PI bound specifically to anti-chum somatolactin. Anti-alpha- melanin stimulating hormone (MSH) stained only the PbH+ (alpha-melanotrophic) cells of the PI.

关键词： Immunocytochemistry Pituitary Gland Bagrus Bayad (Teleostei)

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Assessment of KL-6 as a tumor marker in patients with hepatocellular carcinoma

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World Journal of Gastroenterology 2005年第42期11卷 6607-6612页

作者： amal Gad Eiji Tanaka Akihiro Matsumoto Moushira Abd-el Wahab Abd el-Hamid Serwah Fawzy Attia khalil Ali Howayda Hassouba Abd el-Raoof el-Deeb Tetsuya Ichijyo Takeji Umemura Hidetomo Muto Kaname Yoshizawa Kendo Kiyosawa Second Department of Internal Medicine Shinshu University School of Medicine Matsumoto Japan Howayda Hassouba Abd el-Raoof el-Deeb Suez Canal University School of Medicine Ismailia Egypt Second Department of Internal Medicine Shinshu University School of Medicine Matsumoto Japan Howayda Hassouba Abd el-Raoof el-Deeb Suez Canal University School of Medicine Ismailia Egypt Shinshu University Graduate School of Medicine Institutes of Organ Transplants Reconstructive Medicine and Tissue Engineering Matsumoto Japan

AIM： To investigate the clinical significance of KL-6 as a tumor marker of HCC in two different ethnic groups with chronic liver disease consecutively encountered at outpatient clinics. METHODS： Serum KL-6 was measured by the sandwich enzyme immunoassay method using the KL-6 antibody （Ab） as both the capture and tracer Ab according to the manufacturer＇s instructions （Eisai, Tokyo, Japan）. Assessment of alpha fetoprotein （AFP） and protein induced vitamin K deficiency or absence （PIVKA-II） was performed in both groups using commercially available kits. RESULTS： A significantly higher mean serum KL-6 （556±467 U/L） was found in HCC in comparison with non-HCC groups either with （391±176 U/L; P〈0.001） or without （361±161 U/L; P〈0.001） liver cirrhosis （LC）. Serum KL-6 level did not correlate with either AFP or PIVKA-II serU/Levels. Using rec：eiver operating curve analysis for KL-6 as a predictor for HCC showed that the area under the curve was 0.574 （95%CI = 0.50-0.64） and the KL-6 level that gave the best sensitivity （61%） was found to be 334 U/L but according to the manufacturer＇s instructions; a cut-off point of 500 U/L was used that showed the highest specificity （80%） in comparison with AFP and PIVKA-II （78% vs 72% respectively）. Combining the values of the three markersimproved specificity of AFP for HCC diagnosis from 78% for AFP alone; 93% for AFP plus PIVKA-II to 99% for both plus KL-6 value （P〈0.001）. Mean serum alkaline phosphatase level was significantly higher in KL-6 positive （564＋475） in comparison with KL-6 negative （505＋469） HCC patients （P = 0.021）, but such a difference was not found among non-HCC corresponding groups. CONCLUSION： KL-6 is suggested as a tumor for HCC. Its positivity may reflect HCC-associated cholestasis and/ or local tumor invasion.

关键词： Tumor markers Liver disease Hepatocellularcarcinoma

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