Báo cáo khoa học: " Changes of gastrointestinal argyrophil endocrine cells in the osteoporotic SD rats induced by ovariectomy" ppt

... reflect the change in the capacity of producing these hormones [8]. In the present study, the changes of the argyrophil endocrine cells in the GI tract of SD rat after ovariectomy were observed by ... technique, the Grimelius method. The general distribution of the argyrophil cells in the GI tract F ig. 1. Argyrophil endocrine cells...

Ngày tải lên: 07/08/2014, 17:23

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Ngày tải lên: 07/08/2014, 18:21

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Ngày tải lên: 07/08/2014, 18:21

... tried to link the expression of AP-2a in these tissues to upstream signaling pathways. They assessed the organization of a cis-regulatory region within the fifth intron specific for directing AP-2a ... treatment of the chick face with RA, and this is accompanied by an increase in apoptosis [73]. The authors of this study ascribe the regulation of outgrowth of limb...

Ngày tải lên: 16/02/2014, 09:20

... demonstrated by receptor-blocking experiments. The rates of uptake of both the lipid and protein components are not matched by the rate of cel- lular metabolism of these species, resulting in the accu- mulation ... feature of the atherosclerotic lesion is the presence of lipid-laden (foam) cells in the intima of the artery wall, arising from cholesterol...

Ngày tải lên: 19/02/2014, 02:20

... those with the C-terminal domain deleted is consistent with this (Figs 4 and 5). Hybrid proteins carrying the N-terminus of one protein and the Sm domain of the other localize according to the N-terminal ... the latter, indicating that in the absence of an N-terminal domain distinct localization is lacking. Finally, the Lsm1p Sm domain by itself (LsmDN1DCp) accumu- l...

Ngày tải lên: 07/03/2014, 02:20

... permeabilization induced by the proteins was expressed as a percentage of the maximal permeabiliza- tion obtained at the end of the assay by the addition of Triton X-100 to a final concentration of 2 mm. Hemolytic ... [17,18]. By following the kinet- ics of fibril formation, conditions were defined in which the protein exists in the form of prefibrillar oli...

Ngày tải lên: 07/03/2014, 17:20

... the kinetic constants for hydrolysis and synthesis of penicillin G, ampicillin and cephalexin. Furthermore, insight into the nature of the transition state in the rate-determining steps of the ... (k h1 ). In other words, when binding of the b-lactam nucleophile leads to a reduction of the rate of deacylation by H 2 O by lowering the nucleophilicity of H...

Ngày tải lên: 08/03/2014, 08:20

... involved reducing the starting material and the volume of the sucrose layers but maintaining the relative ratios of the sucrose layers. Infected Sf9 cells (about 6.6 · 10 7 ) were harvested by ... glycosy- lation of the native site in the S1–S2 linker was required for proper trafficking and stability [43]. On the other hand, glycosylation of the native site in...

Ngày tải lên: 16/03/2014, 13:20

... acts through the ligand binding pocket of USP to activate transcription of the DR1JHECore. Overexpression of EcR in the trans- fected cells results in the loading of the DR1 enhancer of the DR1JHECore ... human RXR (which is the ortholog of USP) have shown that an area on the surface of the ligand binding domain involving the C-terminus of a-helix 3,...

Ngày tải lên: 23/03/2014, 13:20