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Biotechnology | Advanced Academic Programs | Johns Hopkins …

Monday, April 1st, 2019

Johns Hopkins is a world leader in biological research and the global biotechnology industry. We challenge students with a rigorous, multi-disciplinary curriculum that fully prepares them to advance their careers and pursue their academic ambitions in the biotechnology field.Program InformationCourse LocationsBaltimore, MD; Rockville, MD; OnlineAvailable 100% OnsiteYesAvailable 100% OnlineYes*Entry TermsFall, Spring or Summer semesterDegree Requirements10 coursesTuition and FeesTuition in the 2019-2020 academic year is $4,495 per course.Please note: 2019-2020 tuition rates are tentative pending approval by the Board of Trustees.More information.

The Johns Hopkins MS in Biotechnology offers a comprehensive exploration of basic science, applied science, and lab science, with an industry focus. The program gives you a solid grounding in biochemistry, molecular biology, cell biology, genomics, and proteomics.

This 10-course degree program is thesis-optional and can be completed fully online. Students can enroll part-time or full-time. This Program offers a sufficient number of onsite courses to sustain students coming to the US on visas. Our curriculum will prepare you to engage in research, lead lab teams, make development and planning decisions, create and apply research modalities to large projects, and take the reins of management and marketing decisions.

Many students like the flexibility of the general degree; it allows them to tailor the coursework to meet their individual career goals. The program also offers six different concentrations: biodefense, bioinformatics, biotechnology enterprise, regenerative and stem cell technologies, regulatory affairs, or drug discovery.

Onsite courses are taught during evenings or weekends at either the universitys Homewood Campus in Baltimore, MD or the Montgomery County Campus in Rockville, MD. Courses are also offered in our state-of-the-art lab.

Each year, students of the MS in Biotechnology have the opportunity to apply for a fellowship with the National Cancer Institute at NIH. This fellowship, which requires onsite research as well as onsite courses for the Molecular Targets and Drug Discovery Technologies concentration at the Montgomery Count Campus, awards students with a stipend while providing them with useful experience in the arena of cancer research. Learn more about this fellowship and apply here.

*Note: Students should be aware of state-specific information for online programs. For more information, please contact an admissions representative.

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Biotechnology – Wikibooks, open books for an open world

Monday, April 1st, 2019

This book is meant for students and professionals who are looking for reference on different areas in this field, to bring a new student or new hire up to speed.

A scientific revolution less than 20 years old that has already changing the foods we eat and react to the environment.

To bring out the best in nature.

Farmers and bakers were the pioneers of the biotech. Remember Grandma's freshly baked bread? How Grandpa kept the seeds of those really big pepper or tomatoes? Your grandparents were practicing biotechnology. Maybe you still do the same, that is the basis of biotechnology.

Defining "Biotechnology"

The application of the principles of engineering and the use of technology in the field of life sciences-bioengineering.

1 The use of living things to make products.2 The study, application and control of a biological processes. 3 The application of any of the above or derivatives thereof, to make or modify products or processes for specifically defined uses.

The use of microorganisms (such as bacteria or yeasts) or biological substances (such as enzymes) to perform specific industrial or manufacturing processes. Applications include the production of certain drugs, synthetic hormones, and bulk foodstuffs, as well as the bioconversion of organic waste and the cleanup of oil spills.

Cloning, genetic manipulation, cell fusion, and mutation.

Modifying the genetic material of organisms directly and with increasing precision, has enabled the transfer of genes between extremely diverse organisms, in combinations unlikely to occur by non-technological means, allowing speedier and more specific results.

Essentially, doing "more and faster" building on what we have known and done for centuries and going beyond.

Life- Defined as:

Products

Good laboratory practice for nonclinical laboratory studies:

http://www.access.gpo.gov/nara/cfr/waisidx_02/21cfr58_02.html

Title 21 Code of Federal Regulations (21 CFR Part 11)Electronic Records; Electronic Signatures

http://www.fda.gov/ora/compliance_ref/part11/

Part 210 - current good manufacturing practice in manufacturing, processing, packing, or holding of drugs; general

Part 211 - current good manufacturing practice for finished pharmaceuticals

http://www.fda.gov/cder/dmpq/cgmpregs.htm

SOP's (Standard Operating Procedures)

Notebook

Documentation for Integrity and traceability

Keys to Successful Biotech products

Record Keeping

requirements

Development / Upstream / Downstream processes

Chemical

Yeast

Fungi

Mammalian Cells

Fermentation?

ExpensiveLabor intensiveOpen EndedTime Consuming

Raw MaterialsBatch to Batch variationsTransportation costsStorage

CompositionGrowth kineticsYieldSeed Bank

Original Stored Cells

Used in actual fermentation

The Biotech Technician must be a person possessing skills with ability to solve problems and meet the customer in such a way that the translations of what is possible can be made clear. They have to maintain a notebook, one that can be read by someone else. Present results in a clear manner, and work with others to meet objectives.

A technician must use the tools of the trade not unlike any other trade, we are farmers but our herd is tiny tiny wildlife. To take care of our herd we must measure certain aspects of their environment.

most accuratemore expensive piece of equipmentStore in bufferCheck for clogging

very coarse measurement of pH

The letters pH stand for "power of hydrogen"

The most abundant element in the universe is hydrogen, which makes up about 3/4 of all matter!

Stronger acids give up more protons, H+ (hydrogen ions); stronger bases give up more OH- (hydroxide ions). Neutral substances have an even balance of H+ and OH-, E.g. Pure (distilled) water.

>7 base -- 7 Neutral -- <7 Acid

Depending on your definition, an acid is a hydrogen ion or proton donator and a base is a hydrogen ion acceptor, hydroxide ion donator, or electron acceptor.

Acids produce H+ ions in aqueous solutions, whereas bases produce OH- ions in aqueous solutions

pH electrode compared to a battery

Store in buffer not H2O

Mercury tubeGood for metals and biologicals and up to 80 degrees C

The common Silver-Silver Chloride reference electrode used with most combination pH electrodes has a Potassium Chloride salt-bridge which is saturated with Silver Chloride.

Works well in most samples, but not in biological samples containing proteins or related materials

Span errorDifference b/w perfect and actual pH Electrode at 25C produces 59.12 mV/pH unit

Offset error

signal @ pH 7.0 @ 25 C is 0 mV

Three point calibration

Calibrate W/I range you going to use

Chemist use buffers to moderate the pH of a reaction.Buffers stabilize a solution at a specific pH value.Resist pH change when small amounts of acid or alkali are added.

KPO4

KPO4 buffer is highly recommended for most P450 assays (microsomal or recombinant enzymes) with the exception of CYP 2C9 and 2A6 where a Tris buffer system is more appropriate.

TRIS buffer

TRIS buffers are used by biochemists to control pH in the physiological range (about 7 to 8 pH) because phosphates cause undesirable side reactions with the biological substances in their test samples.

"Good" buffers

These buffers were well received by the research community because "Good" buffers are nontoxic, easy to purify and their pKa is typically between 6.0 and 8.0, the range at which most biological reactions occur.

The "Good" buffers also feature minimal penetration of membranes, minimal absorbance in the 240-700 nm range and minimal effects due to salt, concentration or temperature.

pKa = dissociation constant

In chemistry and biochemistry, a dissociation constant or an ionization constant is a specific type of equilibrium constant used for dissociation (ionization) reactions.Dissociation in chemistry and biochemistry is a general process in which complexes, molecules, or salts separate or split into smaller molecules, ions, or radicals, usually in a reversible manner. Dissociation is the opposite of association and recombination.

Problems

A gelatinous material derived from certain marine algae.

Two types:

Components required for preparing a minimal agar

LB (Luria-Bertani) Media

contains blood cells from an animal (e.g. a sheep). Most bacteria will grow on this medium

This contains lysed blood cells, and is used for growing fastidious (fussy) respiratory bacteria.

Purpose Mannitol salt agar is both a selective and differential growth medium.

Inhibits Gram+MacConkey

This type of agar is used since it is one of the most forgiving media available - it is hard to contaminate, and E. coli usually grow up as red colonies.

(Almost all spore forming bacteria are Gram-positive, but these cannot grow on MacConkey agar because of the detergent in it (bile salts), and very few Gram-negative bacteria can tolerate either the initial dryness of the plates, or the boiling temperatures needed to make the MacConkey agar. Also, while fungal spores can tolerate the dryness, they cannot tolerate the boiling.)

This is an agar upon which only Gram-negative bacteria can grow

Starch

An agar plate is a sterile Petri dish that contains agar plus nutrients, and is used to culture bacteria or fungi.

contains the antibiotic neomycin.

Used for fungi. It contains gentamicin and has a low pH that will kill most bacteria.

+ Complex+ pH 7.2

Common UV/ VIS spectrophotometers Following is a list of commonly used spectrophotometers: GeneSys 20 HP8452A Diode Array Spectronic 20

Ultraviolet-Visible spectroscopy or Ultraviolet-Visible spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). It uses light in the visible and adjacent near ultraviolet (UV) and near infrared (NIR) ranges. In this region of energy space molecules undergo electronic transitions.

A=elc

There are different types of Sterilization techniques. Some of them are 1. Physical sterilization 2. Chemical sterilization

Under Physical sterilization a) Heatb) Filtration c) Ionising Radiation etc.,In Heat sterilization i. Temperature above 100 Cii. Temperature at 100 Ciii. Temperature below 100 C.

i. Temperature above 100 CThere are two methods involved in it a. Moisture heat sterilizationb. Dry heat sterilization

Using a balanceCalibration / documentation

Gel electrophoresis is a method that separates macromolecules-either nucleic acids or proteins-on the basis of size, electric charge, and other physical properties. Researchers can typically control the charge at the top and bottom of the gel. DNA is negatively charged so to run it through the gel, the top would have to be set to - and the bottom to +.

materials

agarose

Agarose is a natural colloid extracted from sea weedIt is very fragile and easily destroyed by handlingAgarose gels have very large "pore" size and are used primarily to separate very large molecules with a molecular mass greater than 200 kDaltonsAgarose gels can be processed faster than polyacrylamide gels, but their resolution is inferior.

Agarose is a linear polysaccharide (average molecular mas about 12,000) made up of the basic repeat unit agarobiose, which comprises alternating units of galactose and 3,6-anhydrogalactose. Agarose is usually used at concentrations between 1% and 3%. Agarose is a chain of sugar molecules, and is extracted from seaweed.

Perhaps you have seen the terms TBE or TAE.

These are names of two commonly used buffers in electrophoresis.

The "T" stands for Tris, a chemical which helps maintain a consistent pH of the solution.

The "E" stands for EDTA, which itself is another anacronym. EDTA chelates (gobbles up) divalent cations like magnesium. This is important because most nucleases require divalent cations for activity, and you certainly wouldn't want any stray nucleases degrading your sample while it's running through the gel, would you?

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Biotechnology - Wikibooks, open books for an open world

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USDA ERS – Biotechnology

Monday, April 1st, 2019

Genetically engineered (GE) seed varieties were commercially introduced in 1996. Adoption rates for these crops increased rapidly in the years that followed. Currently, over 90 percent of U.S. corn, upland cotton, soybeans, canola, and sugarbeets are produced using GE varieties.

HT crops tolerate potent herbicides (such as glyphosate, glufosinate, and dicamba), which have the potential to damage non-GE crops. Insect-resistant (Bt) crops contain a gene from the soil bacteriumBacillus thuringiensisthat produces an insecticidal protein. Although other GE traits have been developed (such as virus and fungus resistance, drought resistance, and enhanced protein, oil, or vitamin content), HT and Bt traits are the most commonly used in U.S. crop production. While HT seeds are also widely used in alfalfa, canola, and sugar beet production, most GE acres are planted to three major field crops: corn, cotton, and soybeans.

See Adoption of Genetically Engineered Crops in the U.S., a data product on the ERS website, for more information.

Though GE seeds tend to be more expensive than conventional ones, planting them tends to increase crop yields, lower pesticide costs, and/or provide time and labor savings. The impacts of GE crops vary by crop, year, and location. Bt crops tend to have higher yields than non-Bt crops when insects are present. Insecticide costs also tend to be lower on fields where Bt crops are planted. Planting HT crops tends to simplify weed management decisions, which can lead to time and labor savings. HT adoption also tends to promote the use of conservation tillage technologies and often induces farmers to substitute the herbicide glyphosate for more toxic herbicides. However, large increases in glyphosate use have recently led to the development of glyphosate-resistant weed populations. The spread of resistant weed populations has the potential to erode the benefits associated with HT production systems.

ERS conducts research on a number of agricultural biotechnology issues, including:

A book from the National Research Council titled The Impact of Genetically Engineered Crops on Farm Sustainability in the United States (2010) is a comprehensive assessment of the environmental, economic, and social impacts of the GE-crop revolution on U.S. farms.

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What Are Examples of Biotechnology? | Reference.com

Monday, April 1st, 2019

Some examples of biotechnology include human gene therapy, genetically modifying plants and changing the genes of bacteria. Biotechnology helps improve crops so they produce more, healthier produce. It also helps fight human diseases.

Biotechnology is generally involved in changing the genes of a an organism to get the desired result. It affects the most people through genetically modified crops. Genetic modification of crops started thousands of years ago through selective breeding for preferred traits, but with the advances in technology in the modern day, scientists are able to directly manipulate genes. These plants produce higher quality food at a higher rate, and are often resistant to pests and diseases, which helps feed larger amounts of people for a lower price on less land.

Biotechnology more directly helps humans with gene therapy and the modification of bacteria to produce insulin for patients with diabetes. Gene therapy can help reduce or remove the effects of a disease, such as cancer or AIDS, but is still mostly in research and development. This type of therapy is still promising and has had good results in testing phases. Modified bacteria cells that produce insulin as they age helps treat and control the effects of diabetes in humans over time.

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Recombinant DNA and Biotechnology – CliffsNotes

Monday, April 1st, 2019

Figure 1

The production of a a recombined bacterium using a gene from a foreign donor and the synthesis of protein encoded by the recombinant DNA molecule.

The genes used in DNA technology are commonly obtained from host cells or organisms calledgene libraries.A gene library is a collection of cells identified as harboring a specific gene. For example,E. colicells can be stored with the genes for human insulin in their chromosomes.

Pharmaceutical products.Gene defects in humans can lead to deficiencies in proteins such as insulin, human growth hormone, and Factor VIII. These protein deficiencies may lead to problems such as diabetes, dwarfism, and impaired blood clotting, respectively. Missing proteins can now be replaced by proteins manufactured through biotechnology. Forinsulinproduction, two protein chains are encoded by separate genes in plasmids inserted into bacteria. The protein chains are then chemically joined to form the final insulin product.Human growth hormoneis also produced within bacteria, but special techniques are used because the bacteria do not usually produce human proteins. Therapeutic proteins produced by biotechnology include a clot-dissolving protein calledtissue plasminogen activator (TPA)andinterferon.This antiviral protein is produced withinE. colicells. Interferon is currently used against certain types of cancers and for certain skin conditions.

Vaccinesrepresent another application of recombinant DNA technology. For instance, the hepatitis B vaccine now in use is composed of viral protein manufactured by yeast cells, which have been recombined with viral genes. The vaccine is safe because it contains no viral particles. Experimental vaccines against AIDS are being produced in the same way.

Diagnostic testing.Recombinant DNA and biotechnology have opened a new era of diagnostic testing and have made detecting many genetic diseases possible. The basic tool of DNA analyses is a fragment of DNA called the DNA probe. ADNA probeis a relatively small, single-stranded fragment of DNA that recognizes and binds to a complementary section of DNA in a complex mixture of DNA molecules. The probe mingles with the mixture of DNA and unites with the target DNA much like a left hand unites with the right. Once the probe unites with its target, it emits a signal such as radioactivity to indicate that a reaction has occurred.

To work effectively, a sufficiently large amount of target DNA must be available. To increase the amount of available DNA, a process called thepolymerase chain reaction (PCR)is used. In a highly automated machine, the target DNA is combined with enzymes, nucleotides, and a primer DNA. In geometric fashion, the enzymes synthesize copies of the target DNA, so that in a few hours billions of molecules of DNA exist where only a few were before.

Using DNA probes and PCR, scientists are now able to detect the DNA associated with HIV (and AIDS), Lyme disease, and genetic diseases such as cystic fibrosis, muscular dystrophy, Huntington's disease, and fragile X syndrome.

Gene therapy. Gene therapyis a recombinant DNA process in which cells are taken from the patient, altered by adding genes, and replaced in the patient, where the genes provide the genetic codes for proteins the patient is lacking.

In the early 1990s, gene therapy was used to correct a deficiency of the enzymeadenosine deaminase (ADA).Blood cells called lymphocytes were removed from the bone marrow of two children; then genes for ADA production were inserted into the cells using viruses as vectors. Finally, the cells were reinfused to the bodies of the two children. Once established in the bodies, the gene-altered cells began synthesizing the enzyme ADA and alleviated the deficiency.

Gene therapy has also been performed with patients withmelanoma(a virulent skin cancer). In this case, lymphocytes that normally attack tumors are isolated in the patients and treated with genes for an anticancer protein calledtumor necrosis factor.The genealtered lymphocytes are then reinfused to the patients, where they produce the new protein which helps destroy cancer cells. Approximately 2000 single-gene defects are believed to exist, and patients with these defects may be candidates for gene therapy.

DNA fingerprinting.The use of DNA probes and the development of retrieval techniques have made it possible to match DNA molecules to one another for identification purposes. This process has been used in a forensic procedure calledDNA fingerprinting.

The use of DNA fingerprinting depends upon the presence of repeating base sequences that exist in the human genome. The repeating sequences are calledrestriction fragment length polymorphisms (RFLPs).As the pattern of RFLPs is unique for every individual, it can be used as a molecular fingerprint. To perform DNA fingerprinting, DNA is obtained from an individual's blood cells, hair fibers, skin fragments, or other tissue. The DNA is extracted from the cells and digested with enzymes. The resulting fragments are separated by a process called electrophoresis. These separated DNA fragments are tested for characteristic RFLPs using DNA probes. A statistical evaluation enables the forensic pathologist to compare a suspect's DNA with the DNA recovered at a crime scene and to assert with a degree of certainty (usually 99 percent) that the suspect was at the crime scene.

DNA and agriculture.Although plants are more difficult to work with than bacteria, gene insertions can be made into single plant cells, and the cells can then be cultivated to form a mature plant. The major method for inserting genes is through the plasmids of a bacterium calledAgrobacterium tumefaciens. This bacterium invades plant cells, and its plasmids insert into plant chromosomes carrying the genes for tumor induction. Scientists remove the tumor-inducing genes and obtain a plasmid that unites with the plant cell without causing any harm.

Recombinant DNA and biotechnology have been used to increase the efficiency of plant growth by increasing the efficiency of the plant's ability to fix nitrogen. Scientists have obtained the genes for nitrogen fixation from bacteria and have incorporated those genes into plant cells. By obtaining nitrogen directly from the atmosphere, the plants can synthesize their own proteins without intervention of bacteria as normally needed.

DNA technology has also been used to increase plant resistance to disease. The genes for an insecticide have been obtained from the bacteriumBacillus thuringiensisand inserted into plants to allow them to resist caterpillars and other pests. In addition, plants have been reengineered to produce the capsid protein that encloses viruses. These proteins lend resistance to the plants against viral disease.

The human genome. One of the most ambitious scientific endeavors of the twentieth century was the effort to sequence the nitrogenous bases in thehuman genome. Begun in 1990 and completed in 2003, the effort encompassed 13 years of work at a cost of approximately $3 billion. Knowing the content of the human genome is helping researchers devise new diagnostics and treatments for genetic diseases and will also be of value to developmental biologists, evolutionary biologists, and comparative biologists.

In addition to learning the genome of humans, the project has also studied numerous bacteria. By 1995, the genomes of two bacteria had been completely deciphered (Haemophilus influenzaeandMycoplasma genitalium), and by 1996, the genome of the yeastSaccharomyces cerevisiaewas known. The Human Genome Project is one of colossal magnitude that will have an impact on many branches of science for decades to come. The project remains the crowning achievement of DNA research in the twentieth century and the bedrock for research in the twenty-first.

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Recombinant DNA and Biotechnology - CliffsNotes

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Stem Cell Therapy | Ohio Stem Cell

Monday, April 1st, 2019

Amniotic regenerative cell therapy is one of the newest and most cutting-edge therapies for chronic joint pain. Amniotic derived regenerative cell therapy offers patients 3 essential properties for healing and restoring joint health:

Since amniotic derived regenerative cell therapy is not derived from embryonic stem cells or fetal tissue, there are no ethical issues with the treatment. The amniotic regenerative cell therapy consists of an injection directly into the painful area. The therapy has the potential to actually alter the course of the condition and not simply mask the pain. This therapy has significant potential for those in pain, and could actually repair structural problems while treating pain and inflammation simultaneously. When the amniotic cell material is obtained, it comes from consenting donors who have undergone elective c-sections. The fluid is processed at an FDA regulated lab, and is checked for a full slate of diseases per FDA guidelines. The amniotic material has been used over 60,000 times in the US with no adverse events reported. It acts as an immunologically privileged material, meaning it has NOT been shown to cause any rejection reaction in the body. This means there is no graft versus host problem.

Our services are provided by Dr. John Biery D.O. F.A.O.S.M. F.A.C.S.M. F.A.C.O.F.P

Lauren Sherer P.A.-C

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