the most difficult puzzles ever devised c

Tài liệu Molecular Neurobiology of Alzheimer Disease and Related Disorders doc

Ngày tải lên : 14/02/2014, 17:20

... gugaggcccu N GACCAUCUUCUUGGUGGU GCUCUACAAG - - - - GCUGCUACAAG GCUCUAAAAGUACCGCUGCUAAAAG H 10 11 UGGUGGUGCUCUACAAGUA GCUCUACAAGUACCGCUGCUACAAG CCGCUGCUACAAG gugaggcccu Exon Intron d Fig UV cross-linking ... A, Boland CR, Chauhan DP: Specific inhibition of cyclooxygenase-2 (COX-2) expression by dietary curcumin in HT-29 human colon cancer cells Cancer Lett 2001;172:111–118 Kelloff GJ, Crowell JA, ... curcumin (160 ppm), suggesting Cole/Morihara/Lim/Calon/Teter/Yang/Frautschy that this effect occurred in vivo Because confocal double-labeling cannot resolve the intracellular location of microglial...

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Báo cáo khoa học: "Upregulated but insufficient generation of activated protein C is associated with development of multiorgan failure in severe acute pancreatitis" pot

Ngày tải lên : 12/08/2014, 23:21

... function as indicated by increased concentrations of serum Available online http://ccforum.com/content/10/1/R16 Figure Levels of (a) protein C (PC), (b) activated protein C (APC), and (c) APC/PC ... stay in the intensive care unit The total PC was measured by activating the bound PC in the wells by Protac (American Diagnostica, Greenwich, CT, USA) and then measuring the amidolytic activity ... in the wells for the capture of APC and PC The plates were then washed to remove sample constituents and benzamidine The amidolytic activity of the captured APC was measured with chromogenic substrate...

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Báo cáo khoa học: In vitro gamma-secretase cleavage of the Alzheimer’s amyloid precursor protein correlates to a subset of presenilin complexes and is inhibited by zinc potx

Ngày tải lên : 16/03/2014, 23:20

... forward, 5¢-CCCAAGCTTGGGT GCCCCGCGCAGGGTCGCG-3¢; reverse, 5¢-GGGGGG GATCCGTTCTGCATCTGCTC-3¢ This product was then ligated into the HindIII ⁄ BamHI site of p3XFLAG-CMV-14 and the resulting vector named ... SPC99-3FLAG The following primer pairs were used to amplify the C9 9-3FLAG sequence from SPC99-3FLAG: forward, 5¢-GGGGGGCC ATGGATGCAGAATTCCGAC-3¢; reverse, 5¢-GGGGGG AAGCTTTTACTTGTCATCGTCATCC-3¢ ... detergent concentration can affect the apparent size of the c- secretase complex components and affect c- secretase activity which correlates to a subset of PS complexes Thirdly, dimethylsulfoxide can...

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The effect of s1p lyase deficiency on the metabolism of the alzheimer’s related amyloid precursor protein

Ngày tải lên : 25/11/2015, 15:23

... Table 1: Equipment and Material Cell culture equipment Company -80 C Freezer Thermo Scientific 37 C CO2 incubator Binder Cell culture clean bench Thermo Scientific Centrifuge (5804) Eppendorf Water ... amyloidogenic non-amyloidogenic extracellular space/lumen N N sAPPα N γ α C αCTF γ β Aβ α C N N p3 AICD sAPPβ APP C β γ C βCTF C AICD cytosol Fig 2: Proteolytic processing pathways of APP Initial cleavage ... relevance and attracts various immune cells like lymphocytes, since the activation of S1PRs can cause egress of several types of immune cells (Chi, 2011; Schwab et al, 2005) The particular effect...

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Tài liệu Báo cáo khoa học: Animal models of amyloid-b-related pathologies in Alzheimer’s disease docx

Ngày tải lên : 16/02/2014, 09:20

... can accelerate Ab aggregation and lower the cost of research One can also confer certain characteristics to Ab and dissect molecular interactions The Swedish mutation has often been used together ... cell loss is difﬁcult to distinguish from physical displacement Today, almost every research article in the AD ﬁeld contains an introductory statement in which the neurotoxicity of Ab is described ... marrow-derived microglia can reduce both the size and number of senile plaques in transgenic mice [131,132] The chemokine (C- C motif) ligand 2, and its receptor CCR2, is a key system in the recruitment...

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Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

Ngày tải lên : 18/02/2014, 13:20

... 5¢-ATGGACGCTGAAT TCCGTCACGACTCTGGTTACGAAGTTCACCACCAG AAGCTGGTG-3¢; Abb, 5¢-GTTCACCACCAGAAGCT GGTGTTCTTCGCTGAAGACGTGGGTTCTAACAAG GGTGCT-3¢; Abc, 5¢-CACAACGCCACCAACCATCAGA CCGATGATAGCACCCTTGTTAGAACCCAC-3¢; ... Abstart, 5¢-GCGTAGGGTCGACATATGGACGCTGAATT CCGTCACG-3¢; Abstop, 5¢-CCTGCCGAGCTCCTATTA CACAACGCCACCAACCATCAG-3¢ The PCR solution was prepared in the buffer supplied with the enzyme, and contained ... by PCR using the primers Abstart and Ab42stop (5¢-CCTG CCGAGCTCCTATTAAGCGATCACAACGCCACCAA CCATCAG-3¢) and a sequence-veriﬁed plasmid carrying the Ab(L1–40) gene This adds Ile41 and Ala42 to the...

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Báo cáo khoa học: Selecting cells with different Alzheimer’s disease c-secretase activity using FACS Differential effect of presenilin exon 9 deletion on c- and e-cleavage doc

Ngày tải lên : 08/03/2014, 08:20

... pSP72 The hygromycin resistance gene was ampliﬁed from the pCEP4 plasmid (Invitrogen) with primer (5¢-GGACCAGACCCCACGCAACG-3¢) and primer 10 (5¢-GCCCTGCTTCATCCCCGTGG-3¢) and cloned into the pSP72/5GAL-E1bEGFP ... primer (5¢-TCAGGAGCTAA GGAAGCTAAAATGGTGAGCAAGGGCGAG-3¢) and primer (5¢-CCGCTCGAGTTACTTGTACAGCTCGT CCATGCC-3¢) The splice-overlap PCR-product was cloned into pUC18 (NEB) and subsequently cloned into ... (5¢-CCCAAGCTTGGGTGCCCCGCGC AGGGTCGCG-3¢) and primer (5¢-GTACTGTTTCTT CTTCAGCATCACC-3¢) The GAL4-VP16 DNA fragment (678 bp) was produced by PCR from pGAL4-VP16 [26] (a gift from G E O Muscat,...

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Báo cáo khoa học: Amyloid-b protoﬁbril levels correlate with spatial learning in Arctic Alzheimer’s disease transgenic mice docx

Ngày tải lên : 23/03/2014, 06:20

... in the goal area and crossed the platform area more often in the probe trial than tg-ArcSwe mice did (Fig 4C) , but the differences did not reach significance Both these measures inversely correlated ... tube and CSF was withdrawn using a syringe connected to the tube The CSF was placed on dry ice and stored at )80 C until the time of analysis On average 10 lL of CSF was collected from each mouse ... existing congophilic cores, resulting in bigger plaques The density of the congophilic cores of these plaques more closely relates to Ab protofibril levels Ab protofibril formation occurs in several...

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Báo cáo khoa học: Amyloid–cholinesterase interactions Implications for Alzheimer’s disease pot

Ngày tải lên : 23/03/2014, 07:20

... which belongs to the peripherical anionic site of the catalytic subunit of acetylcholinesterase We used this hydrophobic peptide to show that it was able to mimic the capacity to accelerate the ... differentially affects acetylcholinesterase activity, as indicated in Table In almost all cases, a higher concentration of the inhibitor was required to block the acetylcholinesterase–Ab complex than ... producing the transmissible spongiform encephalopathies This altered structure changes the physicochemical properties of the protein, including an increased resistance to denaturation by chemical...

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Báo cáo khoa học: High-resolution NMR studies of the zinc-binding site of the Alzheimer’s amyloid b-peptide pdf

Ngày tải lên : 23/03/2014, 10:20

... a grant from the Swedish Research Council and by the European Commission, Contracts LSHG-CT-2004-51 and QLK3-CT-200201989 Titrations Fluorescence Fluorescence spectra were collected using a Jobin ... quenching can be used to directly measure the dissociation constant of copper ions, and indirectly to estimate the dissociation constant of zinc 52 Table Dissociation constants of copper and zinc ... detailed molecular effects on the full-length Ab of zinc binding Thanks to the combined use of heteronuclear NMR, ﬂuorescence and CD spectroscopy, a molecular model for the zinc interaction in solution...

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Báo cáo khoa học: Shedding of the amyloid precursor protein-like protein APLP2 by disintegrin-metalloproteinases Retinoic acid-induced upregulation of substrate and proteinase ADAM10 during neuronal cell differentiation ppt

Ngày tải lên : 30/03/2014, 11:20

... 5¢-GAAGGGCTCATGACCACAGTCC AT-3¢, GAPDH_rev 5¢-TCATTGTCGTACCAGGAAAT GAGCTT-3¢; ADAM10_for 5¢-CTGGCCAACCTATTTG TGGAA-3¢, ADAM10_rev 5¢-GACCTTGACTTGGACTG CACTG-3¢; BACE_for 5¢-GTTATCATGGAGGGCTTC TACGTT-3¢, ... TACGTT-3¢, BACE_rev 5¢-GCTGCCGTCCTGAACTCA TC-3¢; APLP2_for 5¢-CTCAGCGGATGATAATGAG CAC-3¢, APLP2_rev 5¢-GGTTCTTGGCTTGAAGTTCT GC-3¢ Real-time RT-PCR was performed using the one-step QuantiTectSYBRGreen ... PCR was induced by heating to 95 C, followed by 45 PCR cycles (one cycle contained the following steps: 15 s at 95 C; 30 s at 55 C; 30 s at 72 C) The speciﬁcity of each primer pair was conﬁrmed...

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báo cáo hóa học: " Inflammatory cytokine levels correlate with amyloid load in transgenic mouse models of Alzheimer''''s disease" potx

Ngày tải lên : 19/06/2014, 22:20

... sonicated using a sonic dismembrator (Fisher Scientific, PA) Protein content in each slice was determined using the bicinchoninic acid (BCA) protein reagent kit (PierceEndogen, IL), as per the ... and which conformations are most potently toxic Recently, specific oligomeric forms have been shown to be most toxic to neurons These soluble species of Aβ differ from the higher-molecular-weight ... consists of closely related members under the same node The farther one needs to traverse across the tree to reach another member, the higher the dissimilarity represented The distance from the...

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báo cáo hóa học: " Toll-like receptor 2 -196 to -174 del polymorphism influences the susceptibility of Han Chinese people to Alzheimer’s disease" potx

Ngày tải lên : 19/06/2014, 22:20

... microglia and induction of phagocytosis [5] Richard et al demonstrated that TLR2 deficiency in transgenic AD mice could increase Ab deposition and accelerate cognitive decline [6] The -196 to -174 ... influences the susceptibility of Japanese people to gastric cancer Cancer Sci 2007, 98:1790-1794 Nischalke HD, Coenen M, Berger C, Aldenhoff K, Müller T, Berg T, Krämer B, Körner C, Odenthal M, Schulze ... a commercially available statistical package (SPSS Version 13.0, SPSS Inc., Chicago, IL) The criterion used for significant differences is P < 0.05 Results The alleles and genotypes frequencies...

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Báo cáo y học: " Research In silico modeling of the specific inhibitory potential of thiophene-2,3-dihydro-1,5-benzothiazepine against BChE in the formation of β-amyloid plaques associated with Alzheimer''''s disease" doc

Ngày tải lên : 13/08/2014, 16:20

... the difference between the amino acid residues that line the cleft [13] Such structural differences allow the medicinal chemist to explore the region specific for BChE so that a combination therapy ... possessing either AChE-BChE selectivity, well balanced AChE-BChE specificity or high selectivity for BChE only The last option is more important since the content of BChE in the brain increases with ... (ACh) According to the cholinergic hypothesis, memory impairment in SDAT patients results from a deficiency in cholinergic function in the brain [2] More specifically, low amounts of ACh in the...

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Tài liệu Alzheimer’s Disease and Other Dementias doc

Ngày tải lên : 14/02/2014, 18:20

... hemispheres, the cerebellum, and the brain stem The cerebral hemispheres are connected by a structure called the corpus callosum, which allows the left and the right side of the brain to communicate The ... like an old home, the architecture can break down The aging process can be particularly hard on the ability of brain circuits to function at their best because positive change comes less readily ... decisions take place The different regions of the cerebral cortex communicate with each other through neural circuits made out of neurons, but also with other brain centers located deeper in the...

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Memory performance in healthy elderly without Alzheimer’s disease: effects of time and apolipoprotein-E pptx

Ngày tải lên : 05/03/2014, 21:20

... among African-Americans and Caribbean Hispanics in comparison to Whites Thus, the current ﬁndings concerning memory performance might seem contradictory because the effect on memory occurred in ... follow-up A signiﬁcant interaction effect would indicate a difference in the rate of change in a factor score between the two APOE groups Results The demographic characteristics of the 563 healthy ... measure the slope of performance as an indication of change in each cognitive domain over the study period [69] 687 Despite the careful selection of data from subjects without clinical evidence of...

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LifeOut of Focus Alzheimer’s Disease and Related Disorders ppt

Ngày tải lên : 05/03/2014, 23:20

... problems covered in the volumes in the ENCYCLOPEDIA OF PSYCHOLOGICAL DISORDERS were selected because they are of particular importance to young adults, because they affect them directly or because they ... abstracting) B The cognitive deficits in Criteria A1 and A2 each cause significant impairment in social or occupational functioning and represent a significant decline from a previous level of functioning ... functioning C The course is characterized by gradual onset and continuing cognitive decline D The cognitive deficits in Criteria A1 and A2 are not due to any of the following: (1) other central nervous...

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PET in the Evaluation of Alzheimer’s Disease and Related Disorders docx

Ngày tải lên : 05/03/2014, 23:20

... and other etiologies for cognitive decline Since the diagnostic capabilities of this medical technology have outpaced therapeutic advances, a look into the future of PET requires concomitant consideration ... accumulate over the years because of chronic hypertension Such heterogeneity produces a varying clinical picture and requires careful consideration of other sources of vascular pathology such ... and perception2 that can be the consequence of a general medical condition, such as infection, pharmacologic toxicity, or metabolic disturbance Delirium is often confused with dementia because...

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Báo cáo khoa học: The modulation of metal bio-availability as a therapeutic strategy for the treatment of Alzheimer’s disease pptx

Ngày tải lên : 07/03/2014, 10:20

... deficiency Deficient metal bio-availability causes decreased activity of critical enzymes because activity of the enzymes is dependent on optimal metal loading Cu deficiency is central to the recessive ... redox-active role Perhaps the most critical role for Zn within the brain is in neurotransmission across the glutamatergic synapse [34] Within the synaptic cleft, Zn concentrations can reach approximately ... evidence for a possible connection When the bio-availability of intracellular Cu and Zn was increased in CHO-APP cells by treating with CuCQ or ZnCQ complexes, a downstream target of the activated...

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Báo cáo khoa học: Therapeutic approaches for prion and Alzheimer’s diseases pot

Ngày tải lên : 07/03/2014, 10:20

... effect of the vaccine in preclinical testing and the apparent lack of side-effects in AD Tg mice encouraged Elan ⁄ Wyeth to launch clinical trials with a vaccine designated as AN1792 which contained ... appendices archives in the UK Three out of 12 674 randomly selected cases showed evidence of subclinical infection, leading to a prediction that approximately 4000 vCJD further cases may occur in the ... of vaccine focuses its mechanism of action on the peripheral sink Furthermore, the IgM response is reversible because it is T-cell independent; hence memory T-cells that could maintain the immune...

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