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[Mutation analysis of phenylalanine hydroxylase gene in patients w ith phenylketonuria in Henan province].
[classical phenylketonuria]
To
study
the
characteristics
of
the
phenylalanine
hydroxylase
gene
(
PAH
)
mutations
in
patients
with
phenylketonuria
(
PKU
)
in
Henan
province
,
in
order
to
provide
basic
information
for
genetic
counseling
and
prenatal
diagnosis
.
Mutations
of
the
PAH
gene
were
detected
in
exons
1
-
13
with
flanking
introns
of
PAH
gene
by
PCR
and
DNA
sequencing
in
47
families
with
PKU
.
A
total
of
25
different
mutations
were
detected
in
83
out
of
94
PAH
alleles
(
88
.
3
%
)
.
Among
them
,
E
79
fX
13
,
H
271
R
and
D
415
Y
have
not
been
reported
previously
.
It
was
the
first
time
that
IVS
10
-
14
C
to
G
mutation
was
reported
in
Chinese
PKU
population
.
The
mutations
p
.
R
243
Q
,
EX
6
-
96
A
to
G
,
p
.
Y
356
X
,
IVS
401
G
to
A
,
p
.
R
111
X
,
p
.
V
399
V
and
p
.
R
413
P
,
were
the
prevalent
mutations
with
relative
frequencies
of
20
.
5
%
,
12
.
0
%
,
9
.
6
%
,
9
.
6
%
,
8
.
4
%
,
8
.
4
%
and
7
.
2
%
respectively
.
The
mutations
of
the
PAH
gene
in
patients
with
classical
phenylketonuria
in
Henan
province
were
similar
to
that
in
other
areas
of
China
.
Prenatal
gene
diagnosis
for
PKU
by
PAH
gene
sequencing
is
efficient
for
most
PKU
families
.
Diseases
Validation
Diseases presenting
"prenatal diagnosis"
symptom
22q11.2 deletion syndrome
achondroplasia
adrenomyeloneuropathy
alexander disease
alpha-thalassemia
aromatase deficiency
benign recurrent intrahepatic cholestasis
cadasil
canavan disease
classical phenylketonuria
cohen syndrome
congenital adrenal hyperplasia
congenital diaphragmatic hernia
congenital toxoplasmosis
cystinuria
dentinogenesis imperfecta
epidermolysis bullosa simplex
harlequin ichthyosis
holt-oram syndrome
homocystinuria without methylmalonic aciduria
hydrocephalus with stenosis of the aqueduct of sylvius
junctional epidermolysis bullosa
kindler syndrome
krabbe disease
lamellar ichthyosis
megacystis-microcolon-intestinal hypoperistalsis syndrome
monosomy 21
neonatal adrenoleukodystrophy
oculocutaneous albinism
omenn syndrome
phenylketonuria
primary hyperoxaluria type 1
pyruvate dehydrogenase deficiency
severe combined immunodeficiency
wolf-hirschhorn syndrome
x-linked adrenoleukodystrophy
zellweger syndrome
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