Journal of Dentistry Indonesia,
Journal Year:
2009,
Volume and Issue:
16(1)
Published: Oct. 7, 2009
The
effect
of
individual
oncogene
on
diverse
cell
types
could
be
studied
by
using
transgenic
mice.
expression
transgene
is
mainly
determined
the
regulatory
sequences
chosen.
Fifty
four
v-H-ras
FVB/N
mice
and
54
parental
were
used
as
experimental
control
groups
respectively.
Each
group
was
divided
into
nine
subgroups
with
three
different
treatments
i.e.
4-nitroquinoline
1-oxide
(4NQO)-treated,
phorbol
12,13-didecanoate
(PDD)-treated
propane-1,2-diol
(PD)-treated
palatal
for
6,
16
or
24
weeks.
Other
untreated
group.
Two
weeks
after
last
painting,
all
animals
sacrificed
intra-
extra-oral
tissues
removed
fixed
in
4%
m/v
paraformaldehyde
hours.
Hard
tissue
then
decalcified
fixation
completed.
Subsequently,
standard
procedure
H&E
staining
performed.
results
this
study
showed
that
47
out
produced
spontaneous
odontogenic,
epidermal
mesenchymal
neoplasms.
After
painting
4NQO
there
minimal
evidence
epithelial
dysplasia
both
strain
neither
PDD
nor
PD
dysplasia.
From
these
it
apparent
slower
than
reported
other
activated
did
not
increase
rate
mucosal
carcinogenesis
model
used.
On
hand,
incidental
abnormalities
much
detected
especially
DOI:
10.14693/jdi.v16i1.11
The
crucial
role
of
animal
models
in
biomedical
research
calls
for
philosophical
investigation
how
and
whether
knowledge
about
human
diseases
can
be
gained
by
studying
other
species.
This
Element
delves
into
the
selection
construction
to
serve
as
preclinical
substitutes
patients.
It
explores
multifaceted
roles
fulfil
translational
boundaries
between
humans
animals
are
negotiated
this
process.
book
also
covers
persistent
challenges
that
have
sparked
debates
across
scientific,
philosophical,
public
arenas
regarding
limitations
future
models.
Among
tensions
standardization
variation
medicine,
well
strategies
aiming
reduce
recapitulate
biological
complexity.
Finally,
examines
prospects
replacing
with
animal-free
methods.
demonstrates
why
modeling
should
interest
philosophers,
social
scientists,
scientists
alike.
Time
is
ripe
to
complement
the
question
'what
health
and
disease?'
in
philosophy
of
medicine
with
a
'philosophy
physiology.'
Indeed,
actors
this
debate
share
conviction
that
'foundational'
concept
dictates
scientific
field
what
be
considered
healthy
or
pathological
leaves
it
explore
only
facts
mechanisms.
Rejecting
presupposition,
physiology
accepts
biomedical
sciences
redefine
their
own
object:
healthy,
pathological.
various
theories
disease
health,
philosophers
have
rarely
studied,
form
core
research,
too
hastily
as
science
'without
theories.'
The
Element
identifies
them,
clarifies
content,
presuppositions,
scope.
Finally,
proposes
new
about
unity
phenomenon:
not
do
all
diseases
common?'
but
rather,
'why
susceptibility
universal
necessary
characteristic
living
beings?'
Humans
learn
in
ways
that
are
influenced
by
others.
As
a
result,
cultural
items
of
many
types
elaborated
over
time
build
on
the
achievements
previous
generations.
Culture
therefore
shows
pattern
descent
with
modification
reminiscent
Darwinian
evolution.
This
raises
question
whether
selection-a
mechanism
akin
to
natural
selection,
albeit
working
when
learned
passed
from
demonstrators
observers-can
explain
how
various
practices
refined
time.
Element
argues
selection
is
not
necessary
for
explanation
adaptation;
it
hybrid
explanations
draw
aspects
and
attraction
theory;
reproduction
makes
problems
highly
formalised
approaches
selection;
uses
case-study
demonstrate
importance
human
agency
cumulative
adaptation.
This
Element
examines
philosophical
accounts
of
scientific
explanation,
particularly
those
that
apply
to
biology
and
the
life
sciences.
Two
main
categories
explanation
are
examined
in
detail
–causal
explanations
non-causal
explanations.
The
first
section
this
provides
a
brief
history
some
basics
on
explanation.
Section
2
covers
causal
by
discussing
foundational
topics
area,
such
as
defining
causation,
selection,
reductive
is
followed
an
examination
distinct
types
including
appeal
mechanisms
pathways,
cascades.
third
non-causal,
mathematical
explanations,
which
have
received
significant
attention
philosophy
Three
discussed:
topological
constraint-based
optimality
efficiency
minimal
model
title
also
available
Open
Access
Cambridge
Core.
European Journal of Neuroscience,
Journal Year:
2025,
Volume and Issue:
61(7)
Published: March 31, 2025
ABSTRACT
Model
organisms
(MO)
are
widely
used
in
neuroscience
to
study
brain
processes,
behavior,
and
the
biological
foundation
of
human
diseases.
However,
use
MO
has
also
been
criticized
for
low
reliability
insufficient
success
rate
development
therapeutic
approaches,
because
led
overoptimistic
simplistic
applications,
which
sometimes
resulted
wrong
conclusions.
Here,
we
develop
a
conceptual
framework
support
scientists
their
practical
work
foster
discussions
about
power
limitations.
For
this
purpose,
take
advantage
concepts
developed
philosophy
science
adjust
them
application
by
neuroscientists.
We
suggest
that
can
be
best
understood
as
tools
gain
information
group
species
or
phenomenon
interest.
These
learning
processes
made
possible
some
properties
MO,
facilitate
process
acquisition
understanding
provide
advantages,
possibility
transfer
between
species.
residual
uncertainty
remains,
incorrect
generalizations
side‐effects
epistemic
benefits,
consider
representational
risks.
This
suggests
most
effectively,
should
analyze
similarity
relation
involved
species,
weigh
advantages
risks
certain
invest
carefully
designed
validation
experiments.
Altogether,
our
analysis
illustrates
how
benefit
from
philosophical
research
practice.
Control
is
a
key
ingredient
of
scientific
experimentation;
arguably,
an
uncontrolled
intervention
or
manipulation
not
even
genuine
experiment.
Experiments
in
the
life
sciences,
however,
are
notoriously
difficult
to
control
due
complexity
and
variability
living
things.
This
Element
discusses
general
features
controlled
experimentation,
epistemic
practical
aspects,
historical
perspectives.
It
argues
that
experimentation
has
material-technical
conceptual
side.
shifts
focus
from
experiments,
comparisons
with
control,
broader
issue
controlling
for
background
factors
as
epistemologically
fundamental
experimentation.
To
understand
nature
one
needs
consider
making
–
design
phase
particularly
conceptualization
treatment
factors.
The
experiments
at
same
time
constitutive
knowledge
can
be
gained
experiment,
contingent
on
research
situation,
historically
shaped.
Living
systems
are
complex
made
of
components
that
tend
to
degrade,
but
nonetheless
they
maintain
themselves
far
from
equilibrium.
This
requires
living
extract
energy
and
materials
the
environment
use
them
build
repair
their
parts
by
regulating
activities
based
on
internal
external
conditions
in
ways
allow
keep
living.
The
philosophical
theoretical
approach
discussed
this
Element
aims
explain
these
features
biological
appealing
organization.
It
addresses
classical
more
recent
issues
philosophy
biology,
fromorigins
definitions
life
teleology
functions,
an
original
perspective
mainly
focused
system,
its
physiology
behavior,
rather
than
evolution.
discusses
revises
conceptual
foundations
presents
updated
version
it.
title
is
also
available
as
Open
Access
Cambridge
Core.
Physarum
polycephalum,
also
known
more
colloquially
as
'the
blob',
'acellular
slime
mould',
or
just
'slime
is
a
unicellular
multinucleate
protist
that
has
continued
to
attract
the
interest
of
biologists
over
past
century
because
its
complex
life
cycle,
unique
physiology,
morphology,
and
behaviour.
More
recently,
attention
shifted
model
organism
for
investigating
putative
cognitive
capacities
such
decision
making,
learning,
memory
in
organisms
without
nervous
systems.
The
aim
this
Element
illustrate
how
can
be
used
valuable
tool
approaching
various
topics
philosophy
biology.
behaviour
not
only
pose
challenge
some
received
views
biological
processes
but
also,
I
shall
argue,
provide
an
opportunity
clarify
appropriately
sharpen
concepts
underlying
views.
Philosophy and medicine,
Journal Year:
2024,
Volume and Issue:
unknown, P. 115 - 133
Published: Jan. 1, 2024
Abstract
This
chapter
introduces
scope
validity
as
a
conceptual
tool
to
capture
the
(mis)matching
of
scopes
disease
operationalizations
in
different
contexts
research
and
application.
Drawing
on
examples
extrapolating
results
from
animal
models
human
patient
populations,
proposes
shift
perspective
away
idealized
target
constructs
that
can
be
hit
towards
concrete
practices
operationalization
render
diseases
researchable.
It
argues
we
need
take
seriously
locally
varying
conditions
under
which
concepts
operate
impact
assessment
model’s
validity.
Combining
an
adequacy-for-purpose
view
with
practice-oriented,
pragmatist
particularistic
concepts,
presents
relational
concept
does
not
presuppose
extent
test
or
generalizability
some
hypothetical
ideal.
offers
us
possibility
distinguish
between
high
external
for
small
population,
broad
applicability.
Scope
thus
replace
other
such
predictive
validity,
construct
but
rather
helps
clarify
qualify
frame
model
test’s
should
assessed,
putting
question
adequacy
medical
forefront.
Sociology of Health & Illness,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 23, 2024
ABSTRACT
By
examining
the
laboratory
practices
behind
designing
and
crafting
organoids—miniature,
three‐dimensional
cellular
structures
that
replicate
organ
functions—we
highlight
a
critical
shift
in
biomedical
research.
Over
past
16
years,
advances
stem
cell
research
have
transitioned
from
generating
cells
to
utilising
these
building
sophisticated
models
bioengineered
tissues.
This
transition
represents
significant
move
‘what’
of
creation
‘how’
constructing
interpreting
human
models.
Through
ethnographic
(including
observations
interviews)
Europe
North
America,
we
explore
how
organoids
are
constructed
underlying
logic
driving
their
development.
Our
analysis
underscores
growing
importance
vitro
for
health,
urging
sociological
examination
‘near
human’
status.
We
argue
understanding
implications
this
shift—particularly
it
influences
perceptions
representation
diversity
research—requires
scrutiny
sociologists
health
illness.
paper
aims
address
urgent
need
investigate
not
just
experimental
challenges
but
also
socio‐political
dimensions
using
as
proxies
physiology.