Looking to play videos or audio recordings such as lectures? If you are having trouble playing them try using the free player VLC. It can be downloaded for many types of devices including mobile OS. Links are below:
RefME is a platform I have talked about before as a useful piece of kit for managing your referencing. RefME has been purchased by another reference manager which has both free and premium (pay to use) versions called Cite this for me. RefME will shut down in due course so it might be worth considering moving to another manager. Cite this for me is a very simple to use reference manager but there are quite a few programs out there which offer both free and premium versions. A list of my top reference managers can be found below:
Zotero has chrome plugins to assist reference capture.
The Openstax organisation offer free books that are peer-reviewed by scientists and other academic individuals. There are currently a number of books available by them related to biology but they have now launched a new microbiology book well worth having a read of. It may help you with your studies. You can download the Microbiology book at the link below:
This image below outlines the step by step process for HPLC Method Development.
One of your colleagues found a very good book on Pharma Science on the web and it’s available free. The title of the book is: Pharmaceutics: The Science of Dosage Form Design 2nd Edition By Micheal E. Aulton and can be found at the link below.
Below are two links to sets of videos giving very basic explanations of how various chromatographic methods work.
Mr Simple Science:
The link below will take you to a very useful bit of software created using excel that allows you to explore the effects of various parameters on the elution profile of a product. You can play around with column length, elution method (gradient or isocratic), injection volume, temperature and much more and see their effect on resolution and retention time. The first link gives a good overview of the software’s capabilities and the second link is to the program itself which you can download for free and run on PC or Mac.
Among the offered possibilities, it allows you to:
The website below is a great resource for staying current on topics in relation to liquid chromatography and gas chromatography. Sections of the site include:
The link below is to a really useful website explaining concisely all the terms used in speaking about HPLC/LC systems. Well worth book marking:
As an update to a previous post on this please note there is a newer and more often updated free desktop publishing software known as Libreoffice. Not everyone has or can afford Microsoft Office but there are plenty of free packages out there that do much the same as Microsoft office and are similarly easy to use. You can get a free office suite of programs from many companies and organisations but one of my favourites is Libre Office. Select the version open office for your system here:
Below are two videos showing what goes into the process of fermentation, where the cells produce the product (part 1), to product separation and recovery (part 2). These illustrate many of the aspects we are discussing in class.
Below are links (some requiring ITT Dublin library login details for full article access) to interesting articles about the use and potential use of CRISPR/cas9 editing in pharmaceutical bioprocessing. Well worth a read if you’re interested.
The impact of CRISPR-Cas9 on target identification and validation (requires ITT Dublin login)
Small molecules targeting microRNA for cancer therapy: Promises and obstacles (requires ITT Dublin login)
CRISPR/cas9 is a defense mechanism used by certain bacteria to protect themselves against viral (bacteriophage) attach (see figure below). The most commonly used CRISPR/Cas9 bacteria system comes from the bacteria Streptococcus pyogenes. Essentially as the bacteria is exposed to viruses it keeps portions of the viral genetic code (in the form of short RNA sequences) around so it can recognise the virus again. The CRISPR system keeps a record of the viral genetic code and the cas9 enzyme does the cutting. If the CRISPR/cas9 system encounters a virus it recognises in the bacterium the cas9 enzymes chop up the viral DNA preventing the virus from replication.
What’s so interesting about this? Well scientists have been able to extract this system from bacteria and use it to quickly and efficiently create transgenic organisms. The system allows for much more precise modification of a genome then traditional methods. Traditional methods of producing transgenic animals has involved injecting genetic material into embryos and hoping for homologous recombination. This technique not only had plenty of failures but also many non specific effects through in correct targeting of the sequence that the scientist wants altered. A successful transgenic animal could take up to a year to produce. With CRISPR/cas9 specificity this can be shortened to as little as 12 weeks. Below are some articles/papers explaining the system.
CRISPR = Clustered regularly-interspaced short palindromic repeats
The Health Sciences department in the University of Utah has a lovely website explaining many aspects of biology and molecular biology through videos and interactive animations. The home page is here : http://learn.genetics.utah.edu/ with lots of links to explore but I’ve put together some of the most relevant pages below.
Scitable is a website run by Nature Publishing Group which provides biology students with resources on genetics and cell biology. It has great images, explanations (definitions), articles and much much more on everything to do with biology. Well worth checking out if you’re studying for exams or researching for assignments.
We will go through these videos in class but here is a playlist of what I think are very useful videos explaining different key aspects of biology that we’re studying. They are all from the organisation dnalc.org.
RefME is a free reference manager. It can help you capture references on the web and put them together into file format you can export and use in your thesis submission or project submission. For some general info on how it works and what it’s compatible with see this earlier post on LectureHub here. The video below will show you how to capture references on ncbi.nlm.nih.gov/pubmed, biopharminternational.com and books.google.ie to start with but it can do so much more. Well worth considering using it to help you with your thesis/essay writing.
RefME is a free reference manager that works as an add-on to a desktop browser and also as a mobile app. It is available as an app for iOS and Android. With the apps you can scan barcodes of books or search for references and then add them to your account.
It also works with Google Chrome Browser. This app and browser plugin will help you capture (from pubmed or any other web page where you have a potential reference) and manage references to go into your thesis. Once you’ve captured your references and used them in your thesis you can then export all references in the proper format (Harvard is probably the best format) and copy and paste them into your thesis.
You can sign up with a google or facebook account plus it’s completely free. More info can be found at the link below and I’ll put together a short video on how to use it later this week.
If you’re looking for past papers for any subject you are studying you can get them from the ITT Dublin Library website at this link:
The ITT Dublin Library has an agreement with openstax college who have made available a number of free books covering many subjects.
The full list of books can be found here:
I have reviewed the Biology, Microbiology and Concepts in Biology books and think they are all well written and applicable to the course. If you need to read extra material to help you understand your notes I can wholeheartedly recommend them. If you’ve any queries just give me a shout.
Concepts in Biology:
The links below describe in detail how to use either Harvard or Vancouver referencing styles for writing an essay/thesis. Harvard is probably the easier to use especially if you don’t have a reference manager program. This is due to the fact that it is very forgiving if you need to add additional detail to the article. Instead of having to re-number ever reference if you used Vancouver style, you can just add the surname and year to the new reference and just put the references in alphabetical order at the end of the article.
The most important thing to remember with referencing is to be consistent with what ever style you use. Use of web links is never appropriate for referencing!
This is an example of a protocol for testing sterility from the WHO’s pharmacopoeia
Here is an example of the protocol for identifying the medicinal product Asprin (Acetylsalicylic acid).
Proteins are made up of 4 categories of structure:
Primary – Amino acid sequence
Secondary – Alpha helix and Beta pleated sheets
Tertiary – 3D Structure created by protein folding
Quaternary – Arrangement of multiple folded proteins
If you want to look at some 3D structures you can click the following links:
Peer reviewed material is material published in scientific journals (or other types of journals). These articles have been published in these journals only following review of the articles by other scientists who assess the quality and validity of the material.
News articles and websites are not peer reviewed and anyone can right anything there whether it is true or not. In scientific essays you should focus on referencing peer reviewed material first and foremost before utilising other material.
Sample paragraph showing multiple references:
“TLR3 recognizes viral dsRNA and endogenous dsRNA derived from necrotic cells during inflammation (11, 12). In humans, defective TLR3 function has been associated with enhanced susceptibility to viral infection and in particular, herpes simplex encephalitis (13). Recently, a functional TLR3 polymorphism, Leu412Phe (TLR3 L412F, rs3775291) was described which results in attenuated NF-B- and IRF3-signaling in affected cells (14). TLR3 412F has also been shown to confer protection against geographic atrophy in macular degeneration by attenuating TLR3-induced retinal epithelial cell apoptosis (15).”
References should be used throughout the essays. The above piece is in Vancouver Style. Other referencing styles can be found here. Details of what Vancouver style is and how to use it for different types of references can be found here:
Avoid using significant amounts of quotes to in your essay as this is not appropriate. Put things you’ve read and understand in to your own words.
A vaccine is a biological preparation that improves immunity to a particular disease.Whether that’s a disease caused by a bacteria or a virus.
An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses. The antibody recognizes a unique part of the foreign target, called an antigen.
Cytokines (Greek cyto-, cell; and -kinos, movement) are a broad and loose category of small proteins (~5–20 kDa) that are important in cell signaling. They are released by cells and affect the behavior of other cells, and sometimes the releasing cell itself. Cytokines include chemokines, interferons, interleukins, lymphokines, tumour necrosis factor but generally not hormones or growth factors (despite some terminologic overlap). Cytokines are produced by a broad range of cells, including immune cells like macrophages, B lymphocytes, T lymphocytes and mast cells, as well as endothelial cells, fibroblasts, and various stromal cells; a given cytokine may be produced by more than one type of cell.
A hormone (from Greek ὁρμή, “impetus”) is a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour. Hormones have diverse chemical structures that include eicosanoids, steroids, amino acid derivatives, peptides, and proteins. The glands that secrete hormones comprise the endocrine signaling system. The term hormone is sometimes extended to include chemicals produced by cells that affect the same cell (autocrine or intracrine signalling) or nearby cells (paracrine signalling).
Gene therapy is the use of DNA as a drug to treat disease by delivering therapeutic DNA into a patient’s cells. The most common form of gene therapy involves using DNA that encodes a functional, therapeutic gene to replace a mutated gene. Other forms involve directly correcting a mutation, or using DNA that encodes a therapeutic protein drug (rather than a natural human gene) to provide treatment. In gene therapy, DNA that encodes a therapeutic protein is packaged within a “vector”, which is used to get the DNA inside cells within the body. Once inside, the DNA becomes expressed by the cell machinery, resulting in the production of therapeutic protein, which in turn treats the patient’s disease.
Stem cells are undifferentiated biological cells that can differentiate into specialized cells and can divide (through mitosis) to produce more stem cells. They are found in multicellular organisms. In mammals, there are two broad types of stem cells: embryonic stem cells, which are isolated from the inner cell mass of blastocysts, and adult stem cells, which are found in various tissues. In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing adult tissues. In a developing embryo, stem cells can differentiate into all the specialized cells—ectoderm, endoderm and mesoderm (see induced pluripotent stem cells)—but also maintain the normal turnover of regenerative organs, such as blood, skin, or intestinal tissues.
A blood substitute (also called artificial blood or blood surrogates) is a substance used to mimic and fulfill some functions of biological blood. It aims to provide an alternative to blood transfusion, which is transferring blood or blood-based products from one person into another. Thus far, there are no well-accepted oxygen-carrying blood substitutes, which is the typical objective of a red blood cell transfusion; however, there are widely available non-blood volume expanders for cases where only volume restoration is required. These are helping doctors and surgeons avoid the risks of disease transmission and immune suppression, address the chronic blood donor shortage, and address the concerns of Jehovah’s Witnesses and others who have religious objections to receiving transfused blood.
Taken from Wikipedia
The website Pharmacology Corner looks to me to be a great resource for drug discovery, targets and receptors information. Well worth checking out to help with your studies and essays.
The image below is from the article Steroid hormones: Interactions with membrane-bound receptors. It shows three ways that a steroid hormone (drug) can interact with a cell. (a) The classical model. The steroid hormone dissociates from its plasma carrier protein and diffuses across the cell membrane. After gaining entry to the cell, the free hormone binds to an intracellular receptor and alters gene transcription. (b) Receptor-mediated endocytosis. The steroid hormone, bound to its plasma carrier protein, is brought into the cell via a cell-surface receptor. The complex is broken down inside the lysosome, and free steroid hormone diffuses into the cell, where it subsequently exerts its action at the genomic level or undergoes metabolism. (c) Signalling through cell-surface receptors. The free steroid hormone alters intracellular signalling by binding to cell-surface receptors. The steroid hormone could exert these effects directly or could alter signalling by blocking the actions of peptide hormones.
The links below are to resources you can use which will help you with your literature surveys/essays or studies in general.
|ITT Dublin Library||Medscape|
|The Cochrane Library||Google Scholar|
|National Library of Medicine||Web of Science|
The link below is a sample 1500 word essay from the University of York which contains also tutor comments on the layout and structure of the students essay. Well worth a read for your own studies.
Research papers are a great resource for learning. One of the largest databases of peer reviewed published research papers is housed by the US National Library of Medicine National Institutes of Health. You can find specific papers on techniques or new discoveries or review papers which offer a broad look at a particular topic. This should be your first stop for research on topics we’re discussing in lectures or for your assignments.