báo cáo khoa học: "Solid tumors of the pancreas can put on a mask through cystic change" ppsx

... Okamoto A: A case of malignant cystic endocrine tumor of the pancreas. Am J Gastroenterol1987, 82:86-89.18. Tafe LJ, Suriawinata AA: Cystic pancreatic schwannoma in a 46-year-oldman. Ann Diagn ... of pancreatic cystic neo-plasms using clinical and pathological d iagnostic toolsavailable. The clinically small size of pancreatic cystic neoplasms can conceal malignant potentials especially ... Otani T, Atomi Y, Hosoi Y, Watanabe T, Oya M, Kuroda A, Muto T: Extensiveinvasion of a ductal adenocarcinoma into the wall of a pancreaticpseudocyst. Pancreas 1996, 12:416-419.8. Garcea G, Ong...

Báo cáo khoa học: Targeting mechanism of the retinoblastoma tumor suppressor by a prototypical viral oncoprotein Structural modularity, intrinsic disorder and phosphorylation of human papillomavirus E7 doc

... KDis the dissociation constant and Pois the totalpeptide concentration. The last term in the equation takesinto account slight aggregation that may take place at higherprotein concentrations. ... increase in afﬁnity through a dual-contact mode of interaction. Carefulexamination of conserved surface patches in the RbABdomain suggests a putative binding site for E7C,located in the RbA domain ... proteins. The height of each letter within a stack is proportional to itsabundance. Calculation of conservation scores for surfaceresidues of the RbAB domain was carried out using analignment of the...

báo cáo khoa học: "Primary sarcoma of the pancreas, a rare histopathological entity. A case report with review of literature" pps

... A- C].DiscussionSarcoma s of the pancreas are exceedingly rare. Baylor etal reported a 0.1% incidence of pancreati c sarcoma afterreview 5000 cases of pancreatic cancer [1]. Amongstpancreatic sarcomas ... resection is the only possible cure for pan-creatic malignancies. Radical resections are done forlocalized lesions. Advanced lesions warrant palliation.Potts et al proved the importance of a palliative ... similar tothose of other pancreatic pathologies and are thusunspecific to sarcomas. Gray and many others consider a painless jaundice as a sign of an advanced lesion [5].This was true for the...

Báo cáo khoa học: "Automatic Acquisition of English Topic Signatures Based on a Second Language" potx

... Association of Artiﬁcial Intelligence.Rada Mihalcea. 2003. The role of non-ambiguouswords in natural language disambiguation. In Pro-ceedings of the Conference on Recent Advancesin Natural Language ... MachineTranslation, pages 101–112.Rada Mihalcea and Dan I. Moldovan. 1999. An auto-matic method for generating sense tagged corpora.In Proceedings of the 16thConference of the Amer-ican Association ... newspaperin mainland China. It maintains a vast database of news stories, available to search by the public.Among other reasons, we chose this website be-cause its articles have similar quality...

Báo cáo khoa học: "Serous adenocarcinoma of the fallopian tube, associated with verrocous carcinoma of the uterine cervix: a case report of synchronic rare gynecological tumors" pps

... radio-resistant and inaddition, radiotherapy induced anaplastic changes thatlead to regional and distant metastases as a consequence[5,7,9].Recently there are some case reports of cervical and tubalcarcinomas, ... tubalcarcinomas, one of them [14] was associated with twoother tumors of the genital tract (endometrial and ovar-ian), the characteristic of this case is that both tubal andcervical carcinoma were ... adenocarcinoma of the fallopian tube, associated with verrocous carcinoma of the uterine cervix: a case report of synchronic rare gynecological tumors David Cantu de Leon, Delia Perez Montiel*, Adan...

Tài liệu Báo cáo khoa học: Crystal structure of the cambialistic superoxide dismutase from Aeropyrum pernix K1 – insights into the enzyme mechanism and stability pdf

... apical positions. The manga-nese was only 0.06 A ˚out of the equatorial plane(Table 3). The angles around the metal cofactor sug-gested that the ligation form of Mn in ApeSOD is tri-gonal ... °C(triangles) in a solution containing various concentrations of ethanol. The residual activities after the incubation are plotted against the ethanol concentration.Crystal structure of SOD from A. ... metal centerhad the same conﬁgurations as those in the metal-bound ApeSOD. This implies that the conformationaround the active site of ApeSOD is independent of the presence of a metal cofactor.Figure...

Tài liệu Báo cáo khoa học: Homologous expression of the nrdF gene of Corynebacterium ammoniagenes strain ATCC 6872 generates a manganese-metallocofactor (R2F) and a stable tyrosyl radical (Y•) involved in ribonucleotide reduction ppt

... Twomajor fractions were observed: an iron-rich fraction of molecular mass 81 ± 12 kDa and a manganese-richfraction of molecular mass 38 ± 4 kDa. Only the manganese-rich fraction displayed the radical ... Brevibacterium) ammoniageneswas originally described as a manganese analogue [4] of the iron containing class I RNR of Escherichia coli. Thisassignment was based on an analysis of its metal compo-sition ... successfulpuriﬁcation of high amounts of the native C. ammoni-agenes R2F as a manganese- and tyrosyl radical-con-taining metallocofactor, which was recently crystallizedas a manganese protein [24]. Furthermore,...

Tài liệu Báo cáo khoa học: Crystal structures of the regulatory subunit of Thr-sensitive aspartate kinase fromThermus thermophilus pdf

... Yoshida A, Tomita T, Kuzuyama T & Nishiyama M(2007) Purification, crystallization and preliminaryX-ray analysis of regulatory subunit of aspartate kinasefrom Thermus thermophilus. Acta Crystallogr ... 2dt9 and 2zho).Determination of quaternary structure The subunit organization of TtAKb was analyzed by analyt-ical ultracentrifugation and gel filtration chromatography.Fig. 6. Factors important ... total were used for datafitting. The subunit organization of TtAKb was analyzedby nonlinear least square analysis using the softwarepackage origin 2.8, provided by Beckman, with the partialspecific...

Tài liệu Báo cáo khoa học: Limited suppression of the interferon-b production by hepatitis C virus serine protease in cultured human hepatocytes pptx

... Toshiko Maeta and Taka-shi Nakamura for their technical assistance. Drs Kazu-hito Naka (Kanazawa University) and Yasuo Ariumi(Okayama University) are also thanked for theirvaluable input in ... thatthis cleavage was dependent on the protease activity of NS3- 4A (Fig. 6), the correlation between the inhibitoryeffect of NS3- 4A on the Cardif-mediated signalingpathway and the protease activity ... Nomura-Takigawa Y, Nagano-Fujii M, Deng L, Kit-azawa S, Ishido S, Sada K & Hotta H (2006) Non-structural protein 4A of hepatitis C virus accumulates on mitochondria and renders the cells prone...

Tài liệu Báo cáo khoa học: Kinetic characterization of the ﬁrst step of the ribozyme-catalyzed trans excision-splicing reaction docx

... before the substrate-cleavagereaction occurs. The ‘catalytic power’ of an RNA-cleaving ribozyme can be estimated by comparing the observed rateconstant of a catalyzed reaction with that of anequivalent ... in the reaction.Measurement of rate constant of substrate-cleavage product dissociation (k)3) The dissociation rate constant of the 5¢ exon intermediate(k)3), was measured by a pulse–chase ... mM Mes (pH 7) and substrate (5¢-G2CCCUCUAAAAA-3¢)at50°C[6].cSubstrate-cleavage reaction (exogenous guanosine-mediated) of the substrate (5¢-CUUAAAAA-3¢) using the Anabaena ribozyme(L-8...

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