The Fertility Center at Nisa Premier Hospital Abuja is
well equipped and has experience in providing comprehensive fertility
treatment to our patients
|
||||||||
Pre-Implantation Genetic Diagnosis (for Sickle cell anaemia and Aneuploidy )
|
||||||||
Sickle Cell Anemia Disease and PGD
|
||||||||
Sickle cell anemia is an autosomal recessive genetic
disorder caused by a defect in the HBB gene, which codes for hemoglobin.
Hemoglobin is the main substance in red blood cells and responsible for
carrying oxygen from the air in the lungs to all parts of the body.
|
||||||||
In most
cases both parents are carriers of the abnormal gene, having one normal
gene and one abnormal gene. The presence of two abnormal genes is needed
for sickle cell anemia. If each parent carries one sickle hemoglobin
gene and one normal gene, each child has a 1 in 4 (25 %) chance of
inheriting two defective genes and having sickle cell anemia, 1 in 4 (25
%) of having two normal genes and not having the disease, and a 50%
chance of inheriting one normal and one abnormal gene and being an
unaffected carrier like the parents. Some couples opt for prenatal
diagnosis during pregnancy to determine whether a pregnancy is affected.
|
||||||||
An
alternative to prenatal testing for sickle cell anemia is now available
using in vitro fertilization (IVF) with PGD to identify an unaffected
embryo. In vitro fertilization (IVF) is the process of combining eggs
and sperm to form embryos in the laboratory. IVF is often used to help
couples with infertility have a child. Preimplantation genetic diagnosis
is a procedure to analyze the genetic make-up of embryos formed through
IVF for determination of disease status. Couples at risk for having a
child with sickle cell anemia can use PGD to test for this disease.
Based on this analysis, embryos that are not affected with sickle cell
anemia can be selected for transfer to the uterus to establish a
pregnancy.
|
||||||||
Aneuploidy Screening (Pre-Implantation Genetic Screening - PGS)
|
||||||||
It should
be noted that genetic disorders could be due to either a single gene
disorder (disorder resulting from mutation affecting individual genes on
a chromosome) or abnormal number or structure of chromosome. In single
gene disorders, such as sickle cell anemia, the actual genes of the
sampled embryo can be examined for the presence of the condition.
|
||||||||
Other
genetic disorders, such as Duchenne's muscular dystrophy, or hemophilia,
affect only males (sex linked diseases). In these cases, the cell is
examined to determine the sex of the embryo and only female embryos are
replaced. In cases of recurrent chromosomal abnormalities such as Down's
syndrome and recurrent miscarriages caused by parental translocations,
the number and character of several chromosomes can be determined.
|
||||||||
Ovulatory induction and cycle monitoring
|
||||||||
Intra-uterine insemination (IUI) (Partner or Donor insemination)
|
||||||||
The gametes
(eggs and sperm) are mixed together in a dish and sperm penetrate the
eggs to fertilise then naturally. This procedure is used for patient
with normal sperm parameters.
|
||||||||
Intra-cytoplasmic Sperm injection (ICSI)
|
||||||||
For patient
with low sperm count/high abnormal/MAR positive sample. A single sperm
is taken up in a fine glass needle and is injected directly into an
egg.
|
||||||||
Intra morphological sperm injection (IMSI) (suitable for patient with repetitive IVF/ICSI failed cycle)
|
||||||||
One aspect
of male fertility which can be measured and which relates to fertility
is the level of abnormalities present in the sperm. Such abnormalities
result in poorer quality sperm which in turn may reduce the possibility
of fertilisation of an egg and have also been shown to effect the health
of an embryo from which a pregnancy can occur.
|
||||||||
Many sperm
abnormalities can be identified by the embryologist using a normal
microscope with magnification x400-600. This is used when ICSI treatment
is performed .However, by looking at sperm using much higher
magnifications (up to x6000) coupled with a digital imaging system, it
has recently become possible to identify structures within the sperm
head known as vacuoles which cannot be seen with a normal microscope.
|
||||||||
Assisted hatching
|
||||||||
Ovum donation
|
||||||||
Egg Sharing
|
||||||||
Ovum Recipient
|
||||||||
Blastocyst transfer
|
||||||||
The
transfer of day 5-6 embryos. Blastocyst transfers are carried out when
we can be confident of achieving a high quality transfer. We have a
simple criteria to select those patients suitable for blastocyst
transfer.
Our ServicesOur Medical Services |
||||||||
.
|
||||||||
Day 1
|
Day 2
|
Day 3
|
Day 4
|
Day 5
|
||||
*Embryo development at different stages
|
||||||||
Egg /Embryo/blastocyst freezing by vitrification
|
||||||||
Sperm Freezing
|
||||||||
Counselling
|
Nisa Services
Subscribe to:
Posts (Atom)
No comments:
Post a Comment