Categories
Cardiovascular
Diagnostics
Endocrinology
Health Insurance
Medical Devices
Mental Health
Nutrition
Oncology
Public Health
Sexual Health
Buy dildos.
Popular Articles

Bio Manufacturers Poised To Follow Senate Victory With House Win
"A veteran California lawmaker with ties to the biotechnology industry said she thinks her proposal to protect brand-name biologic makers has enough support to carry in the House Energy and Commerce Committee," Dow Jones Newswires/Wall Street Journal reports. The proposal, by Rep. Anna Eshoo, D-Calif., would protect brand-name biologic products from competition for 12 years. A similar proposal cleared the Senate health committee earlier this week.
pharmacy online
Role Of Liver Transplantation Techniques In Surgical Management Of Advanced Renal Urothelial Carcinoma With/without Inferior Vena Cava Thrombus
UroToday.com - Large urothelial carcinoma of the renal pelvis poses a diagnostic as well as surgical challenge to the urologist. This type of malignancy is frequently mistaken preoperatively for renal cell cancer due to its low incidence (10% of all renal malignancies) especially when associated with tumor extension into the inferior vena cava. The presence of a large renal mass should therefore not dissuade the urologist to perform cystoscopy and cytology in order to complete hematuria work-up. Opening the specimen in the operating room will provide clues for the origin of the tumor.
News of the day
Economist Examines 'Snail-Fever' In China
The Economist examines schistosomiasis in China. The disease, which is also called snail-fever, is the "world"s second-most prevalent tropical disease after malaria, affecting 207 million people of whom 726,000 are Chinese, according to the most recent official figures, from 2004," the Economist reports.
Public Health

ChIP-Seq, Drosophila Targeted Mutagenesis Featured In Cold Spring Harbor Protocols

High-throughput whole-genome analysis is becoming a standard laboratory approach for investigating cellular processes. Next-generation sequencing is replacing microarrays as the technique of choice for genome-scale analysis, because it offers advantages in both sensitivity and scale. The June issue of Cold Spring Harbor Protocols features "Native Chromatin Preparation and Illumina/Solexa Library Construction" from Keji Zhao and colleagues at the National Heart, Lung and Blood Institute. The article describes sample preparation for sequencing of chromatin-immunoprecipitated DNA (ChIP-Seq) to analyze histone modification patterns using native chromatin and the Solexa/Illumina Genome Analyzer. Step-by-step instructions are given for purification of human CD4+ T cells from lymphocytes and chromatin fragmentation using micrococcal nuclease (MNase) digestion, followed by chromatin immunoprecipitation (ChIP) and construction of a library for sequencing. The article is freely available on the website for Cold Spring Harbor Protocols (http://cshprotocols.cshlp.org/cgi/content/full/2009/6/pdb.prot5237). Mutational analysis has long been a valuable tool for deciphering gene function. However, systematic repeated targeting of a single locus is difficult and is not a routine approach in multicellular organisms. Yikang Rong and colleagues at the National Cancer Institute have developed the Site-specific Integrase mediated Repeated Targeting (SIRT) method to facilitate targeted mutagenesis in Drosophila melanogaster. SIRT targets a landing site for the phage phiC31 integrase and allows the generation of several genetic variants at a locus of interest without having to perform multiple experiments. SIRT requires the construction of a series of plasmid vectors with varying arrangements of DNA elements. By taking advantage of bacterial recombineering approaches, SIRT bypasses the shortcomings of traditional cloning techniques that rely on the availability of convenient restriction enzyme cut sites. This method, "SIRT Combines Homologous Recombination, Site-Specific Integration, and Bacterial Recombineering for Targeted Mutagenesis in Drosophila," is freely accessible on the website for Cold Spring Harbor Protocols (http://cshprotocols.cshlp.org/cgi/content/full/2009/6/pdb.prot5236). David Crotty Cold Spring Harbor Laboratory


Add your comment:
Name:
Site address: http://
Your message:
Enter today\\\\'s date, 2 digits
(spam protection):

© Copyright 2009