Selective Activation of Alternative MYC Core Promoters by Wnt-Responsive Enhancers.

In Metazoans, transcription of most genes is driven by the use of multiple alternative promoters. Although the precise regulation of alternative promoters is important for proper gene expression, the mechanisms that mediates their differential utilization remains unclear. Here, we investigate how the two alternative promoters (P1, P2) that drive MYC expression are regulated. We find that P1 and P2 can be differentially regulated across cell-types and that their selective usage is largely mediated by distal regulatory sequences. Moreover, we show that in colon carcinoma cells, Wnt-responsive enhancers preferentially upregulate transcription from the P1 promoter using reporter assays and in the context of the endogenous Wnt induction. In addition, multiple enhancer deletions using CRISPR/Cas9 corroborate the regulatory specificity of P1. Finally, we show that preferential activation between Wnt-responsive enhancers and the P1 promoter is influenced by the distinct core promoter elements that are present in the MYC promoters. Taken together, our results provide new insight into how enhancers can specifically target alternative promoters and suggest that formation of these selective interactions could allow more precise combinatorial regulation of transcription initiation

Therapy for Irregular Menstruation with Acupunture and Herbal Pegagan (Centella Asiatica (L.))

Background : Menstruation is bleeding periodic scale and cyclical from uterus extrication (deskuamasi) endometrium. Menstruation bleeding is complex interaction result wich involve hormone system and body system, that are hypothalamus, hypofisis, ovarium and uterus. Every woman has different menstruation cycle. The causes of irregular menstruation are genetic and bad habit life. While according to TCM, irregular menstruation is Yue Jing Bu Tiao. Purpose : to knowing the effect of acupuncture therapy and point of Guanyuan (CV 4), Shenshu (BL 23), Sanyinjao (SP 6) and Shenmen (HT 7). Therapy was given 12 times, 3 times every week. Herbal therapy wich given was pegagan (Centella asiatica (L)) with dose 0,3 and consumed everyday after eat. Result : therapy that used acupuncture and herbal in irregular menstruation case showing menstruation cycle change, that was menstruation cycle became shorter from 76 days to 41 days. Conclusion : acupuncture therapy on point of Guanyuan (CV 4), Shenshu (BL 23), Sanyinjao (SP 6), Shenmen (HT 7), and pegagan herbal (Centella asiatica (L)) could shorten menstruation cycle from 76 days to 41 days

Singular patterns of skull shape and brain size change in the domestication of South American camelids

Patterns of selection in South American camelids (Lamini) and their unique demographic history establish the llama and alpaca as remarkable cases of domestication among large herd animals. Skull shape is implicated in many changes reported between wild and domestic taxa. We apply 3D geometric morphometric methods to describe skull shape, form, and size, differences among the four species of Lamini. In so doing, we test if domesticated Lamini exhibit changes similar to those in other domesticated groups: not only in the skull, but also in brain and body size. In contrast to other domesticated artiodactyls, very little change has occurred in domestic alpacas and llamas compared to their wild counterparts. Nevertheless, their differences are statistically significant and include a flatter cranium, inclined palate and increased airorhynchy in the domestics. Selection pressures that contrast with those on other herd animals, as well as recent population bottlenecks, likely have influenced the morphological patterns we note in Lamini. High-resolution 3D morphospace allows skull size, shape, and form (shape + size), to discriminate all four species, with form providing the greatest separation. These results help differentiate morphologically the Lamini, which in nature are distinguished mainly by body size, and provide an additional tool to archaeologists for distinction of wild and domestic remains. Most of our shape analyses suggest a marginally closer relationship between the alpaca and vicuña, to the exclusion of the guanaco, supporting the genetic relationships for this group. The expected brain size change between wild and domestic populations is lower than previously thought, with a 15.4% reduction in llama, and 6.8% reduction in alpaca. This is the lowest reduction in brain size thus far reported among domesticated Artiodactyla

Comparing the Influence of Different Overhand/Underhand Stacking Combinations of Reversing Half-Hitches on Alternating Posts on Arthroscopic Knot Security

Introduction Previous literature demonstrated the importanceof stacking at least three reversing half-hitches on alternating posts(RHAPs) following arthroscopic knot placement. However, RHAPsconstruction involves looping the suture in either an “overhand” or an“underhand” manner as it relates to the post, which may affect knotsecurity. This study investigated the presently unidentified influenceof different stacking combinations of three RHAPs and suture materialon arthroscopic knot security. Methods Four different RHAPs stacking combinations were tiedwith three different suture materials. Ten knots of each configurationwere tied using each suture material, resulting in 120 evaluated knots.A single load-to-failure test was performed. The mode of failure andmean ultimate clinical failure load were recorded. Results Different overhand/underhand stacking combinations ofthree RHAPs had a statistically significant effect on arthroscopicknot strength and security; however, all combinations surpassed theminimum ultimate clinical failure threshold. Knots constructed witheither Force Fiber® or braided fishing line had mean ultimate clinicalfailure loads of greater than 200 N and most commonly failed due tosuture material breakage (100%, 60 - 80% respectively). Conversely,FiberWire® demonstrated lower mean ultimate clinical failure loadsand had a higher incidence of elongated but intact failure (60 - 90%). Conclusion Different overhand/underhand stacking combinationsof three RHAPs yielded an arthroscopic knot capable of secure tissuefixation. A significant effect was observed for suture materials on theknot strength. This study increases our understanding of suitableRHAPs construction following arthroscopic knot placement that canlead to improving the ultimate clinical failure loads of constructedarthroscopic knots observed between orthopedic surgeons

Police Crime Arrests in the United States, 2011

Purpose – The purpose of the study is to provide empirical data on cases of police crime arrests during the year 2011. The study identifies and describes incidents in which nonfederal sworn law enforcement officers were arrested for one or more criminal offenses. Research Design & Method – The study is a quantitative content analysis of news articles identified through the Google News search engine using 48 automated Google Alerts queries. The unit of analysis in this study is criminal arrest case (not individual arrested officer). Intercoder Reliability – The Krippendorf’s alpha coefficient is strong (Krippendorf’s α = .9153) across the variables in the study. The overall level of simple percentage of agreement between coders across all of the variables (97.7%) also established a high degree of reliability. Research limitations/implications – The data are limited to cases that involve an official arrest. The data are also the result of a filtering process that includes the exercise of media discretion as to types of news stories reported and content devoted to particular news stories. Practical Implications – The study demonstrates that an annual report on police crime arrests can provide empirical data to better understand this neglected area of research. Originality/value – The study augments the few existing studies on the topic and is the only one known to describe the phenomenon in an annual report of police crime arrests as it occurs within law enforcement agencies nationwide

Profit-oriented disassembly-line balancing

As product and material recovery has gained importance, disassembly volumes have increased, justifying construction of disassembly lines similar to assembly lines. Recent research on disassembly lines has focused on complete disassembly. Unlike assembly, the current industry practice involves partial disassembly with profit-maximization or cost-minimization objectives. Another difference between assembly and disassembly is that disassembly involves additional precedence relations among tasks due to processing alternatives or physical restrictions. In this study, we define and solve the profit-oriented partial disassembly-line balancing problem. We first characterize different types of precedence relations in disassembly and propose a new representation scheme that encompasses all these types. We then develop the first mixed integer programming formulation for the partial disassembly-line balancing problem, which simultaneously determines (1) the parts whose demand is to be fulfilled to generate revenue, (2) the tasks that will release the selected parts under task and station costs, (3) the number of stations that will be opened, (4) the cycle time, and (5) the balance of the disassembly line, i.e. the feasible assignment of selected tasks to stations such that various types of precedence relations are satisfied. We propose a lower and upper-bounding scheme based on linear programming relaxation of the formulation. Computational results show that our approach provides near optimal solutions for small problems and is capable of solving larger problems with up to 320 disassembly tasks in reasonable time

Dental Shape Variation and Phylogenetic Signal in the Rattini Tribe Species of Mainland Southeast Asia

We would like to thank Pierre-Henri Fabre for providing the phylogeny for this study. The collection of specimens used was funded by the French ANR Biodiversity, grant ANR 07 BDIV 012 CERoPath project (www.ceropath.org), and by the French ANR CP&ES, grant ANR 11 CPEL 002 BiodivHealthSEA project (www.biodivhealthsea.org). We also thank Madoudou Garba and Gauthier Dobigny (CBGP-IRD) for providing additional specimens. We greatly thank all local communities and their leaders for permission and invaluable help during field trapping. Special thanks to the CERoPath and BiodivHealthSEA teams and the drivers for their invaluable help during fieldwork. We would also like to thank Maeve McMahon for help with manuscript editing and preparation.Peer reviewedPublisher PD

Effect of stocker management program on beef cattle skeletal muscle growth characteristics, satellite cell activity, and paracrine signaling impact on preadipocyte differentiation

The objective of this study was to determine the effect of different stocker management programs on skeletal muscle development and growth characteristics, satellite cell (SC) activity in growing-finishing beef cattle as well as the effects of SC-conditioned media on preadipocyte gene expression and differentiation. Fall-weaned Angus steers (n = 76; 258 ± 28 kg) were randomly assigned to 1 of 4 stocker production systems: 1) grazing dormant native range (NR) supplemented with a 40% CP cottonseed meal-based supplement (1.02 kg ∙ steer–1 ∙ d–1) followed by long-season summer grazing (CON, 0.46 kg/d); 2) grazing dormant NR supplemented with a ground corn and soybean meal-based supplement fed at 1% of BW followed by short-season summer grazing (CORN, 0.61 kg/d); 3) grazing winter wheat pasture (WP) at high stocking density (3.21 steers/ha) to achieve a moderate rate of gain (LGWP, 0.83 kg/d); and 4) grazing winter WP at low stocking density (0.99 steers/ha) to achieve a high rate of gain (HGWP, 1.29 kg/d). At the end of the stocker (intermediate harvest, IH) and finishing (final harvest, FH) phases, 4 steers / treatment were harvested and longissimus muscles (LM) sampled for cryohistological immunofluorescence analysis and SC culture assays. At IH, WP steers had greater LM fiber cross-sectional area than NR steers; however, at FH, the opposite was observed (p \u3c 0.0001). At IH, CORN steers had the lowest Myf-5+:Pax7+ SC density (p = 0.020), while LGWP steers had the most Pax7+ SC (p = 0.043). At FH, CON steers had the highest LM capillary density (p = 0.003) and their cultured SC differentiated more readily than all other treatments (p = 0.017). At FH, Pax7 mRNA was more abundant in 14 d-old SC cultures from HGWP cattle (p = 0.03). Preadipocytes exposed to culture media from proliferating SC cultures from WP cattle isolated at FH had more PPARγ (p = 0.037) and less FABP4 (p = 0.030) mRNA expression compared with NR cattle. These data suggest that different stocker management strategies can impact skeletal muscle growth, SC function, and potentially impact marbling development in growing-finishing beef cattle