Báo cáo y học: "Patterns of intron sequence evolution in Drosophila are dependent upon length and GC conten" ppt

... the relationship between intron length and levels of evolutionary constraint by analyzing inter-specific divergence at 225 intron fragments in Drosophila melanogaster and Drosophila simulans, sampled ... distribution of intron lengths. We document a strongly negative correlation between intron length and divergence. Interestingly, we also find that divergence in...

Ngày tải lên: 14/08/2014, 14:21

... may express Fas in response to tumor necrosis factor-alpha (TNF-α) and inter- feron-gamma (INF-γ) in vitro [41] and cytotoxic T lymphocytes in T-LGL leukemia may spontaneously produce INF-γ and ... Immunophenotypic analysis of the TCR-Vbeta reper- toire in 98 persistent expansions of CD3 + /TCR-alfabeta + large granular lymphocytes: utility in assessing clonality and in...

Ngày tải lên: 09/08/2014, 10:23

... prevaccine era, more than 90% of 15-year-old children had a history of measles [2]. Measles remains a major cause of mortality in children, particularly in areas with inadequate vacci- nation and ... of emerging infectious diseases. Findings Measles is a common infection in children and is spread by the respiratory route. It is characterized by a prodro- mal illness of fev...

Ngày tải lên: 12/08/2014, 04:20

... prostate tumours analysed by real time P CR and viral protein was detected in 23% of 334 prostate tumours using anti- sera against a panel of murine retroviruses including XMRV [3]. In that study, infection ... Some of these have later been shown to be contaminating animal viruses withunknownoriginandfunction.OnlyHIV- 1and HIV-2, both of which induce acquired immunodefi- ciency...

Ngày tải lên: 12/08/2014, 23:23

... sites of RA, TNF- α and IL-1 induce and/ or enhance the production of pros- taglandin E 2 (PGE 2 ) in synoviocytes and chondrocytes. IL- 6 synergistically augments the inflammatory action of IL- 1 ... meas- ured the levels of cartilage proinflammatory cytokines, COX-2 and NF-κB in joints. Immunohistochemical stain- ing of paraffin sections of the joints femoral and t...

Ngày tải lên: 13/08/2014, 15:21

... by 4-cm length) w as inserted into each artery. The standard, non- compliant balloon was expanded manually using linearly increasing pressure while observing the pressure sensor reading during ... and may provide an indicator of risk factors for in- stent re-stenosis. In this study, a detectable change in the slope of the strain in each artery specimen undergoing angioplasty was...

Ngày tải lên: 13/08/2014, 16:20

... corticosterone injection in rats inhibits the synthesis of GR-mRNA in lymphocyte, hypothalamic and hippocampal cells [20,21], it induces the synthesis of GR-mRNA and increases the sensitivity in the ... report are those of the author(s) and do not necessarily represent the views of the funding agency. Declaration of competing interests The author(s) declare that they h...

Ngày tải lên: 13/08/2014, 16:21

... Examples of genes containing this module are CONSTANS, a zinc finger protein linking day length and flowering [41], as well as APRR5 and APRR7, pseudo-response regulators subjected to a circadian rhythm ... minimum amount of sequence identity. In this man- ner, multi-domain proteins for which the sequence only par- tially overlaps because of shared single protein domains,...

Ngày tải lên: 14/08/2014, 17:22

... Prevalence and susceptibility of vaginal yeast isolates in Jordan. Mycoses 1997;40: 179–85. 5. Abu- Elteen KH. Increased incidence of vulvovaginal candidiasis caused by Candida glabrata in Jordan. ... concurrently with a signicant surge in the number of vaginal lymphocytes and a very sig- nicant increase in the percentage of vaginal T cells express- ing CD, CD, CD...

Ngày tải lên: 08/08/2014, 21:20

... the invasive margins and an average of 1.9 bv/HPF in the tumor. At the margins a maximum of 19 bv/HPF and a minimum of 5 bv/HPF are observed. In the areas of main tumor growth a maximum of 4 ... positivity being in L3 to L5. Syn: Syn positivity is higher in the outer layers of the PMZ as compared to the inner layers. The positivity is 50% [255/510 PMZ] in L1, L2 a...

Ngày tải lên: 10/08/2014, 05:21