This document discusses genetically modified organisms (GMOs) in food and agriculture. It provides background on GMOs, including sources of GM food like microorganisms, animals, and plants that have been genetically engineered. It then discusses the genetic modification process and genes commonly used. The document outlines potential risks of GMOs, including health, environmental, socioeconomic, and ethical issues. It also discusses the precautionary principle for assessing GMO risks and regulations around GMOs in the European Union.
this presentation deals with Molecular Ph(f)arming, and bio-safety issues related to it. This was presented by me in credit seminar in the division of Agricultural physics, IARI, New Delhi.
the sources used are duly acknowledged in the figures and slides.
CRITERIAS FOR PATENTING IN
BIOTECHNOLOGY
Survey participants confirm that the patent
system is an important incentive for
investment in research and development in
the field of biotechnology [3].
Patents and licenses for
biotechnological inventions are treated
an imperative incentive to stimulate
research, knowledge flows and the
entry of new technologies into markets.
HYBRIDIZATION & HAPLOID PRODUCTION
Introduction
WIDE HYBRIDIZATION
INTER-SPECIFIC HYBRIDIZATION
Barriers to distant hybridization
Techniques to overcome barriers
Haploids and Doubled Haploids in Plant
Production of haploids and doubled haploids
a) Induction of maternal haploids
Wide hybridization
3. In vitro induction of maternal haploids – gynogenesis
Induction of paternal haploids – Androgenesis
Production of Homozygous Diploid Plants
Application of Haploids in Plant Breeding
Importance and Implications of Anther and Pollen Culture
plant Biotechnology: The application of Plant Biotechnology by use of scientific method to manipulate living cells or organisms for practical uses (manipulation and transfer of genetic material).
Presentation from the International Life Sciences Institute, India - "Scientific Workshop on Safety Assessment of GM Foods" held on 14-15 October, 2015 in New Delhi, India
this presentation deals with Molecular Ph(f)arming, and bio-safety issues related to it. This was presented by me in credit seminar in the division of Agricultural physics, IARI, New Delhi.
the sources used are duly acknowledged in the figures and slides.
CRITERIAS FOR PATENTING IN
BIOTECHNOLOGY
Survey participants confirm that the patent
system is an important incentive for
investment in research and development in
the field of biotechnology [3].
Patents and licenses for
biotechnological inventions are treated
an imperative incentive to stimulate
research, knowledge flows and the
entry of new technologies into markets.
HYBRIDIZATION & HAPLOID PRODUCTION
Introduction
WIDE HYBRIDIZATION
INTER-SPECIFIC HYBRIDIZATION
Barriers to distant hybridization
Techniques to overcome barriers
Haploids and Doubled Haploids in Plant
Production of haploids and doubled haploids
a) Induction of maternal haploids
Wide hybridization
3. In vitro induction of maternal haploids – gynogenesis
Induction of paternal haploids – Androgenesis
Production of Homozygous Diploid Plants
Application of Haploids in Plant Breeding
Importance and Implications of Anther and Pollen Culture
plant Biotechnology: The application of Plant Biotechnology by use of scientific method to manipulate living cells or organisms for practical uses (manipulation and transfer of genetic material).
Presentation from the International Life Sciences Institute, India - "Scientific Workshop on Safety Assessment of GM Foods" held on 14-15 October, 2015 in New Delhi, India
Biotechnological applications in Food ProcessingAbdul Rehman
Deals with various applications of biotechnology in Food processing includes genetically modified food and the concept of metabolic engineering as a novel technique.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
3. MICROORGANISMS
(e.g. modified lactobacilli, modified yeast, enzymes from
the modified microorganisms – invertase, renin, etc.)
ANIMALS
(super-salmon, vaccine proteins in milk, prion protein-less
cows)
PLANTS
(nearly all cultivated species modified, few used in large-
scale agricultural production)
SOURCES of GM FOOD:
4. Cultivars developed through genetic engineering
Genetically Modified Organisms
(GMOs) = Transgenics
Also known as:
Genetically Engineered Organisms
Genetically Enhanced Organisms
Biotech Crop
Frankenstein Food
5. GM plants and derived food and feed that are currently on the
market, have been modified through insertion of single or a few
genes which express traits, such as providing herbicide
tolerance and/or insect resistance.
Apart from the intended alterations in their composition, these
plants show no evidence for alterations in phenotype and basal
composition.
Plant Biotechnology
6. These genes are very specific and allow the plant to
precisely express the desired trait.
Plant Biotechnology
Using plant biotechnology, a single gene may
be added to the strand.
Allows for the transfer of a greater variety of genetic
information in a more precise manner.
10. Potential Risks from GMO used in food or feed
Health risks
Environment risks
Socio-economic risks
Ethical conflicts
11. Precautionary Principle Described in
the Rio Declaration (1992):
Nations shall use the precautionary approach to protect the
environment.
Where there are threats of serious or irreversible damage,
scientific uncertainty shall not be used to postpone cost-
effective measures to prevent environmental degradation.
12. Definition of the Precautionary Principle (Cynical American
Version)
The Precautionary Principle is a nebulous doctrine developed by
Europeans as a means to erect a trade barrier against any item
that can be produced more efficiently in the United States.
13. Implications of Problems in European
Agriculture
Recent agriculture industry problems in EU countries include:
BSE (Mad Cow Disease)
Hoof and mouth disease
Dioxins in chicken feed
These problems have led to public distrust and to support for the
Precautionary Principle.
The Precautionary Principle justifies exclusion of usual US food
products, even though the US has had none of these agricultural
problems
14. Codex Alimentarius Commission. Alinorm 03/34: Joint FAO/WHO Food
Standard Programme, Codex Alimentarius Commission, Twenty-Fifth
Session, Rome, 30 June–5 July, 2003. Appendix III, Guideline for the
conduct of food safety assessment of foods derived from recombinant-
DNA plants
Directive on the Deliberate Release into the Environment of Genetically
Modified Organisms (2001/18)
Regulation on Genetically Modified Food and Feed (1829/2003) In effect
since 19 April 2004
Regulation No 178/2002 laying down the general principles and
requirements of food law, establishing the European Food Safety
Authority
15. EFSA - advancing risk assessment in the EU
• Systems established to ensure improved
– management/planning of risk assessment (workplan,
timelines)
– transparency
– risk communication
– stakeholder engagement
– interaction of risk assessment/risk management
– interaction with national authorities
17. EFSA-Panel GMO
Elements to be considered in the safety assessment process
Molecular characteristics of the GMO taking into account the
characteristics of the donor and recipient organisms
Potential environmental impact following a deliberate release
Compositional, nutritional, safety and agronomic characteristics
Potential toxicity and allergenicity of gene products and
metabolites
Nutritional assessment of the GM food and feed
18. The safety assessment of GM foods generally investigates:
(a) direct health effects (toxicity),
(b) tendencies to provoke allergic reaction (allergenicity);
(c) specific components thought to have nutritional or toxic
properties;
(d) the stability of the inserted gene;
(e) nutritional effects associated with genetic modification;
(f) any unintended effects which could result from the gene
insertion.
`
19. Processing of the applications for food and feed that was
made from or contains GM plants
1) Application submitted to EFSA
2) Scientific evaluation from expert committee
3) Recommendation made by EFSA
4) Draft for decision from the European Commission Vote in the
"Standing Committee for the Food Chain and Food Safety"
(Member States)
The European Commission's draft may be accepted or rejected
with a qualified majority. If no qualified majority can be reached,
the European Commission submits its draft to the Council of
Ministers.
5) Vote in the Council of Ministers.
Approval or rejection by qualified majority - without qualified
majority the Commission's draft takes effect.
Regulation 1829/2003
20.
21. Substantial Equivalence
Expert Consultations convened by FAO/WHO and OECD
have recommended that substantial equivalence be an
important component in the safety assessment of foods
derived from GMP .
Not to establishing absolute safety but to consider
whether the GMF is as safe as its traditional counterpart
22. Substantial Equivalence in EU-Legislation
not explicitly detailed in EU legislation
Simple procedure (Art 5) in Novel Food Regulation
―Substantial Equivalence‖ on the basis of the scientific
evidence available and generally recognized or on the basis
of an opinion delivered by one of the competent bodies
23. Substantial Equivalence in EU-Legislation
SE-Data widespread – no special chapter
composition data of raw products and/or processed products
and/or information on processing (and exposition and/or
consumption) are scattered throughout dossiers
Composition analyses: GLP not evident
Analyses of kernels – extended to processed products
Maize dossiers: only descriptions of processing procedures
Rape dossiers: Data of processed products (limited scale and
set of parameters)
Barely Data on Consumption
24. Substantial Equivalence in EU-Legislation
• Solid statistical evaluation questionable
– No continuous statistic evaluation
– Missing information on methods/software/CI
--> Cannot be concluded, that in each case the statistical evaluation is
actually state of the art
• Significant/remarkable compositional differences in all dossiers
– Differences dismissed without adequate explanation or by arbitrarily
citing literature ranges or „normal― ranges
– No rerun of analyses taking into account a broader spectrum of
compounds
• To get a better overview on compositional equivalence and
• To better address the hazard of secondary/unintended effects
25. Weaknesses SE
Compositional analyses as screening method for unintended
effects of the genetic modification has its limitations
in particular regarding unknown anti-nutrients and natural
toxins
―finer screening‖ - DNA analysis, messenger-RNA
fingerprinting, protein fingerprinting, secondary
metabolite profiling and in vitro toxicity testing
26. Nutritional Evaluation
Low-glutelin-Rice - unintended increase in levels of
prolamins (not relevant for sake-brewing but in
case of nutrition)
would not have been detected by standard
composition analyses (total protein; AA-
profiles)
„Golden Rice― - unexpected accumulation of
xanthophylls
would not have been apparent from standard
analyses
27. Allergenicity
As a matter of principle, the transfer of genes from commonly
allergenic foods is discouraged unless it can be demonstrated that
the protein product of the transferred gene is not allergenic.
While traditionally developed foods are not generally tested for
allergenicity, protocols for tests for GM foods have been evaluated
by the Food and Agriculture Organization of the United Nations
(FAO) and WHO.
No allergic effects have been found relative to GM foods
currently on the market.
28. In 1998 Árpád Puzstai said in an interview on a World in Action
program that his group had observed damage to the intestines and
immune systems of rats fed the genetically modified potatoes. He
also said "If I had the choice I would certainly not eat it", and that
"I find it's very unfair to use our fellow citizens as guinea pigs".
Wikipedia
Controversies in GM food health risk assessment
29. Effect of diets containing genetically modified potatoes expressing
Galanthus nivalis lectin on rat small intestine
Stanley W B Ewen, Arpad Pusztai THE LANCET • Vol 354 • October
16, 1999
Diets containing genetically modified (GM) potatoes expressing the
lectin Galanthus nivalis agglutinin (GNA) had variable effects on
different parts of the rat gastrointestinal tract. Some effects, such
as the proliferation of the gastric mucosa, were mainly due to the
expression of the GNA transgene. However, other parts of the
construct or the genetic transformation (or both) could also have
contributed to the overall biological effects of the GNA-GM
potatoes, particularly on the small intestine and caecum.
Controversies in GM food health risk assessment
30. GM soybeans and health safety—a controversy
reexamined
NATURE BIOTECHNOLOGY VOLUME 25 NUMBER
9 SEPTEMBER 2007
Irina Ermakova, the author of controversial studies
reporting soybeans genetically modified for resistance to
glyphosate may be dangerous to newborns
An unprecedented study claiming that transgenic soybeans
compromise the fertility of rats and the survival and growth of
their offspring has garnered widespread media and political
attention but remains unpublished in the peer-reviewed
literature.
Controversies in GM food health risk assessment
31. Gilles-Eric Séralini. et al. (2007)
New Analysis of a Rat Feeding Study with a
Genetically Modified Maize Reveals Signs of
Hepatorenal Toxicity Archives of Environmental
Contamination and Toxicology
35. Recommendations
Standardise – and rationalise – the principles involved in the
evaluation and approval of new crop varieties (whether produced by
so-called conventional, marker assisted breeding, or GE
technologies) universally so that they are scientific, risk-based,
predictable and transparent.
It is critical that the scope of what is subject to case-by-case
review is as important as the actual review itself; it must also be
scientific and risk-based.
PAS Study Week, Vatican City, 15-19 May 2009
36. Nanotechnology applications are expected to bring new tastes,
textures and sensations, less use of fat, enhanced absorption of
nutrients, improved packaging, traceability and security of food
products.
Nanotech-derived food products are set to grow worldwide and a
variety of food ingredients, additives, carriers for
nutrients/supplements and food contact materials is already
available.
New challenges for health risk assessment
37. The current level of applications in the European food sector is at
an elementary stage; however, more and more products will be
available in the EU over the coming years.
The toxicological nature of hazard, likelihood of exposure and risk
to consumers from nanotechnology-derived food/food packaging
are largely unknown.
Food Additives and Contaminants, March 2008;