We narrowed to 1,018 results for: REN;
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TypeBlog Post... or looking to improve your current methods, understanding the differences can help you make an informed... Resources References Shaw, G., Morse, S., Ararat, M., & Graham, F. L. (2002). Preferential transformation...make the virus. Viruses can be produced in many different cell types, spanning both prokaryotic and eukaryotic...However, some viruses can be produced in multiple different cell types, including plants, mammals, and insects... transfer plasmid. The transfer plasmids have different packaging capacities depending on the virus. AAV... which system to use will come down to which differences are most important to you — virus type, cost,...this post has provided some insight on these differences in viral production and will help you decide ...
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Light Sheet Fluorescence Microscopy
TypeBlog Post...first successful attempt to render fixed anatomical preparations transparent was done by Walter Spalteholtz... Pubmed. J. Sharpe, U. Ahlgren, P. Perry, Hill B, Ross A, J. Hecksher-Sorensen, R. Baldock, D. Davidson...microscopy coupled with techniques that make tissues transparent are enabling microscopes to visualize the cellular...spinal tract, CST, spinal cord and cranial nerve afferents labelled with a AAV8 expressing eGFP under the...sample and captured the reflected light using a different objective lens oriented perpendicular to the plane...of clear specimens and for in vivo imaging of transparent organisms. Advances in tissue clearing Similar...Find plasmids from the Tsoulfas lab here. References: H. Siedentopf, and R,. Zsigmondy. (1902) Ann... -
Important Considerations When Using AAVs
TypeBlog Post... This preferential tropism for different brain regions is largely due the ability of different serotypes...tissue? What is commonly known is that different serotypes have different tropisms but, as you can see, AAVs...there are marked differences among serotypes in their efficiency at transducing different brain regions....serotypes to infect different cell types. In the CNS, it has been shown that there is variable transduction...skeletal muscles, and the central nervous system. Currently, AAVs are being used to deliver CRISPR/Cas9 but...transduction efficiency, and safety profiles should strengthen its appeal for the scientific and medical communities...movement. Follow her on twitter @katrinaboards. References 1. Russell, David W. "AAV vectors, insertional... -
A Guide to Getting Started in Undergrad Research
TypeBlog Post...presenting your research at conferences such as SACNAS and ABRCMS. These conferences have a lot of programming...her on Twitter @EleanorWang. References and resources References Canning EA, LaCosse J, Kroeper KM...new therapies can be developed and applied. The current pandemic serves as a striking example of the applicability... is a supportive environment—it makes all the difference in a lab experience. “Mentorship” was a bit of...interested in doing research and attending research conferences. The Barry Goldwater scholarship is also a national...graduate programs, recruiters will attend these conferences to answer questions and offer application fee...explore! Addgene has an entire page dedicated to different career options from science policy to science ... -
What’s in Your Tube?: A Quick Guide to Measuring DNA by Spectrophotometry
TypeBlog Post...Addgene blog Plasmid Preps: Different Purity, Different Quantities, Different Uses What's the Best Way to... our blog and website. References and Resources References Ahlfen SV, Schlumpberger M. Effects...Each of these contaminants will have a slightly different impact on the spectra of a mixed sample. ...A260/230 of ~2.0. However, let’s break down how different contaminants impact these ratios. Protein contaminants...A260/230 ratio of a DNA sample, its absorbance strength is low compared to other reagents, making it more...concentrations < 10 ng/μL), where absorbance readings are inherently more variable. If you do need to work with dilute... instrument you use and check out some of the references we have provided below. And if you do have trouble... -
A Guide to Starting Your Own Journal Club
TypeBlog Post...across multiple teams or to stay abreast of current trends in the literature, sampling a breadth of work...One thing many scientists enjoy is discussion of current new and exciting literature. As I transitioned ... had concerns that I may not have time to stay current or enjoy that discussion. Luckily, one needn't ...science, researchers of all varieties must stay current with literature and emerging technologies to remain...meeting amongst scientists that aims to help stay current on new and emerging work by collaboratively discussing...the meeting settles in and people get the time recurrently carved out. This notice typically should include...the same figure by figure organization with a different person responsible for each figure. Others still... -
Antibodies 101: Designing Your First Flow Panel
TypeBlog Post...can't distinguish the different proteins from each other. To distinguish different target proteins in your...target. By using a mix of different antibody-fluorophore combinations for different markers of interest, you...fluorophore. However, these aren't strict rules and in practice the differences in brightness levels are ... fluorophore's brightness refers to the signal strength of the emitted photons detected by the cytometer...a global maximum at around 560 nm, leading to different levels of brightness, depending on the laser light's...floodlight. For fluorophore brightness levels, these differences are much more subtle (think of brightness levels... Even though the two compounds are completely different in nature (eGFP being a protein and FITC an organic... -
With an Eye Towards the Future, We Look Back at the March for Science
TypeBlog Post...more scientists in our leadership, and raising awareness regarding the pitfalls of accepting alternative...outside the scientific community. Vanessa Sung is currently a PhD student studying breast cancer at the Goodman...Over the last few years, there's been a disturbing trend in the number of high profile people denying science...climate change is a hoax. This has culminated in the current President holding and campaigning on many views...Candidate studying Nuclear Science and Engineering at Rensselaer Polytechnic Institute. He also studies energy...that I expected. Jennifer Stancill, Ph.D., is currently a post-doctoral fellow at Vanderbilt University...fingers of skepticism to defend an agenda that halts current data collection, destroys existing data, and guts... -
A Primer on Optogenetics: Introduction and Opsin Delivery
TypeBlog Post...numerous variants for the different types of opsins available and their differences and uses have been discussed... the different variants [1, 2, 4]. And, of course, the best way to learn about the many different opsin...particular neurotransmitter release or post-synaptic current. Fortunately, if your lab focuses primarily on ...about this in detail later). But what are the different steps in an optogenetics experiment and what are...Biology from the University of Michigan and he is currently a Postdoctoral Fellow in the lab of Mary Jeanne... or follow him on Twitter @derekpsimonphd. References 1. Tye KM, Deisseroth K. Optogenetic investigation... for analyzing the neural circuits of behavior. Trends in cognitive sciences. 2011;15(12):592-600. doi... -
Mesothelioma - Causes, Symptoms, and Treatment
TypeBlog Post...immunotherapy than ever before. Although different types of cancer have different challenges and obstacles to overcome...However, there are many different forms of immunotherapy that work in different ways. For example, a new...learned much about the causes of cancer and the different avenues that can be used to treat it. For those...latency period, and rarity of mesothelioma make it different from many other types of cancer. Mesothelioma ...literally thousands of years to Ancient Greece. Current mesothelioma treatment As with many forms of cancer...catch the disease earlier. New techniques are currently being tested in clinical trials to detect mesothelioma...mesothelioma, such as in the case of Paul Zygielbaum. A different approach to immunotherapy is bevacizumab (Avastin... -
Beyond the Blood Brain Barrier: PHP.B Enters the Central Nervous System Via the LY6A Receptor
TypeBlog Post...strains of mice. This suggests that a small genetic difference between these two mice might drive their divergent...took a broad approach and searched for genetic difference between the 36 mouse strains that are part of...permissive phenotype, but only one, Ly6a, showed differential protein and RNA expression between the brains...level of CNS PHP.B transduction as their C57BL/6J parent. The second generation (F2) of outbred mice also... if PHP.B required the same receptors that its parental AAV9 relied on for transducing cells: galactose...These results suggested that PHP.B, unlike its parental AAV9, does not require galactose and AAVR to transduce...are not reproduced when the vector is used in different mouse strains. The in vivo selection for PHP.B... -
Twenty Years of Sharing: Addgene's Viral Vector Service
TypeBlog Post...these tools can be to use. AAVs, which can target different cell types depending on their serotype, are particularly...93,491 viral vector preps with researchers in 45 different countries — and as of 2024, we’ve distributed ...the vectors in Addgene’s catalog are offered in different serotypes. In fact, the 879 viral vectors in our... CRISPR, where we dove fairly deeply into the different types of tools scientists were using/depositing... is less amenable to such analysis, due to its inherent bias: Addgene uses a prioritization process to...service. But why are their request patterns so different? It could be a matter of timing, as jGCaMP7 was...from requestors and depositors, and identifying trends in our own repository data, giving us significant... -
Hot Plasmids - November 2023
TypeBlog Post... new prime editors, PE6a–g, that overcome some current prime limitations and enable impressive editing...optimized for dual-AAV systems. These variants use different RT enzymes and performed large edits with similar...similar or better efficiency than PEmax, the current state-of-the-art. PE6b was very efficient for short...types. DIRECTED is compatible with fusogens from different viral families and can be used to target multiple... enzymes, TurboID and APEX2, are localized to different cellular compartments. They showed APEX2 can use...uses sequential labeling by TurboID and APEX2 at different cellular locations. C) Enrichment of dual-labeled...stably or inducibly express tagged iPAK4 from different promoters, specific time points appear as fluorescent... -
Changing Labor Laws Bring Increased Postdoc Wages
TypeBlog Post...in the U.S., whose current salaries are below the new exemption level (the current average postdoc salary...exactly how postdoctoral salaries are changing. Transparent salary information for postdoctoral positions...data) and therefore the numbers of postdocs at different points on this salary range. We have been able...are doing, however, may face greater challenges. Current salary information that we have been able to find... with relative certainty that just over 40% of current postdocs will have their salaries raised to the...already have salaries at or above $50,000. Boston Children’s Hospital is the only part of the Harvard group...laws will have on the postdoc population. In the current funding climate combined with the lack of a sustainable... -
Selecting Your Plasmid Purification Kit
TypeBlog Post...Addgene blog Plasmid Preps: Different Purity, Different Quantities, Different Uses Plasmids 101: Optimizing...quantity. Figure 1: Plasmid preps fall into different categories based on their relative qualities and... and quantities. Image created in BioRender.com. Transformation Grade DNA (low quality/low quantity...fairly self explanatory and achieved by performing different sized preps, such as miniprep, midiprep, etc. ...what do we mean by DNA quality? There are a few different issues that can arise during the plasmid purification...left with pure plasmid DNA. Image created in BioRender.com. For the clean-up stage, plasmid purification...applications, the choice is largely a matter of preference. Which size kit to use? Obtaining higher quantities... -
March for Science
TypeBlog Post... science) they come from many different places supporting many different positions. It would be detrimental...cycle begins again. No part of this process is inherently political so why is there a march in Washington... (scientists who hold a doctorate degree, are currently working full-time, and have received a research... and everyone is welcome. Why? There are many different things scientists and non-scientists alike are...not necessarily marching for every cause. The references provided also only provide a snapshot into the...microbial interactions, and science education. References March for Science Website Locke, John, and Peter...Cambridge university press, 1988. AAS: Historical Trends in Federal R&D NJ.com: Rush Holt: Lawmakers need... -
Viral Vectors 101: Integrase-Deficient Lentiviral Vectors
TypeBlog Post...by Addgenie Rebecca Hutcheson. References and resources References Banasik, M. B., & McCray, P. B., ...integrase-deficient viral vector. Created with BioRender.com. What are integrase-deficient lentiviral...then, numerous variants have been developed with different mechanisms to inactivate the integrase. The IDLV...of non-integrating transgenes. Created with BioRender.com; adapted from Banasik and McCray, 2010. ...vectors is random, and the integration site will be different for each transduced cell, there’s no telling which...to valine at position 64) which is sufficient to render the integrase non-functional without affecting ... that of regular lentiviral vectors. The only difference is that you would use the integrase-deficient... -
Addgene Depositors Get More Citations
TypeBlog Post...deposits to Addgene. Insomuch as different journals represent different research areas, target readers,... this story had us wondering: is there a larger trend here? Do papers associated with Addgene deposits... would also be great to know how much of that difference in citations is caused by depositing a plasmid...wouldn’t be causal. To control for a number of differences between those papers with Addgene plasmids and..., so our estimates now take into account any differences in citations due to the journal of publication... the same journals! So, is all this remaining difference caused by depositing the related plasmids with...it is still suggestive that we see such a big difference in citations after controlling for journal. And... -
Networking Follow-up: I Met a Person. Now What?
TypeBlog Post... 7 ways to strengthen your new relationships Here are some ways to go about strengthening a new relationship...events for one organization or go to the same conferences/meetings over and over to get to know the regulars...often the easiest way to build relationships and strengthen them over time. Things to avoid when following...starfish shape. You can ask me about the different arms of this starfish sometime, but as of yesterday... was only one other person in my class who had children. When I had my baby, we became closer. She supported...really understood what I was going through. (Parenthetically, when I called the lab to ask my benchmate ...come across your contacts over the years in many different ways. This leads me to my last tip: It’s usually... -
Plasmids 101: Transformation, Transduction, Bacterial Conjugation, and Transfection
TypeBlog Post...plasmid cloning, and viruses. References Baltrus, David A., and Karen Guillemin. "Multiple phases of ...unique to the lab. Let’s take a look at these different methods of DNA insertion. Transformation Transformation...Various factors promote natural transformation in different bacteria such as growth phase of the cells (Baltrus...plasmid, the genes on the plasmid can give them different phenotypes. For example, this plasmid encodes ...cell. Once inside, phages can follow one of two different life cycles: lytic or lysogenic. Lytic phages ...a common tool used by scientists to introduce different DNA sequences of interest into a bacterial cell...through cell division. You can find all kinds of different lentiviral and AAV plasmids as well as ready-to-use...