Turner syndrome is a genetic condition where females are missing an X chromosome. It affects about 1 in 2,500 baby girls. Common characteristics include short stature and lack of ovarian development leading to infertility. While it cannot be passed down from parent to child, it is typically caused by a failure of chromosomes to separate during egg formation. Diagnosis is often made based on physical characteristics, and can be confirmed with a blood test. Hormone replacement therapy is the primary treatment.
Turner syndrome is a chromosomal condition
that alters development in females. Women with this condition tend to be
shorter than average and are usually unable to conceive a child (infertile)
because of an absence of ovarian function. Other features of this condition
that can vary among women who have Turner syndrome include: extra skin on the
neck (webbed neck), puffiness or swelling (lymphedema) of the hands and feet,
skeletal abnormalities, heart defects and kidney problems.
This condition occurs in about 1 in 2,500
female births worldwide, but is much more common among pregnancies that do not
survive to term (miscarriages and stillbirths).
Turner syndrome is a chromosomal condition
related to the X chromosome.
[ghr.nlm.nih.gov]
Researchers have not yet determined which
genes on the X chromosome are responsible for most signs and symptoms of Turner
syndrome. They have, however, identified one gene called SHOX that is important
for bone development and growth. Missing one copy of this gene likely causes
short stature and skeletal abnormalities in women with Turner syndrome.
Turner syndrome is a chromosomal condition
that alters development in females. Women with this condition tend to be
shorter than average and are usually unable to conceive a child (infertile)
because of an absence of ovarian function. Other features of this condition
that can vary among women who have Turner syndrome include: extra skin on the
neck (webbed neck), puffiness or swelling (lymphedema) of the hands and feet,
skeletal abnormalities, heart defects and kidney problems.
This condition occurs in about 1 in 2,500
female births worldwide, but is much more common among pregnancies that do not
survive to term (miscarriages and stillbirths).
Turner syndrome is a chromosomal condition
related to the X chromosome.
[ghr.nlm.nih.gov]
Researchers have not yet determined which
genes on the X chromosome are responsible for most signs and symptoms of Turner
syndrome. They have, however, identified one gene called SHOX that is important
for bone development and growth. Missing one copy of this gene likely causes
short stature and skeletal abnormalities in women with Turner syndrome.
07-08-2013
Faculty of medicine of Syrian Private University.
Please LIKE my page! http://facebook.com/NawrasAlHalabi
متلازمة كلاينفلتر وتقانات أطفال الأنابيب
.كلية الطب البشري في الجامعة السورية الخاصة
Chromosomal Disorders. The types of chromosomal disorders: structural, deletion or addition. Down's syndrome, Turner's syndrome, Klinefelter's syndrome, Patau syndrome. Hope this presentation will help you.
Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child, but this can vary widely.
07-08-2013
Faculty of medicine of Syrian Private University.
Please LIKE my page! http://facebook.com/NawrasAlHalabi
متلازمة كلاينفلتر وتقانات أطفال الأنابيب
.كلية الطب البشري في الجامعة السورية الخاصة
Chromosomal Disorders. The types of chromosomal disorders: structural, deletion or addition. Down's syndrome, Turner's syndrome, Klinefelter's syndrome, Patau syndrome. Hope this presentation will help you.
Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child, but this can vary widely.
Turner syndrome (gonadal dysgenesis) is one of the most common chromosomal abnormalities occuring 1 in 2500 to 1 in 3000 live-born girls. It is an important cause of short stature in girls and primary amenorrhea in young women that is usually caused by loss of part or all of an X chromosome. This review briefly summarises the current knowledge about the syndrome and the management strategies.
Lampbrush chromosome,chromosomes structure.giant chromosomes lambrush chromos...Anand P P
this slide mainly deals with the special types of chromosomes .normally the large sized chromosomes is called as the giant chromosomes,it occur in some insects larval stage .it has several functions and structural modifications.
This a ppt presentation which gives an introduction to Rb diagnosis and treatment in a simple, concise way.
This presentation was prepared by me to be presented for doctoral degree students, pediatric coarse at the Department of Clinical Oncology & Nuclear Medicine, Alexandria University, Egypt.
Presenting on the chromosomal aberration both in structure and number. Insight view in some disorders caused by chromosomal aberration including down syndrome, Patau syndrome, Edward syndrome and XY sex chromosome.
Turner syndrome (TS), sometimes referred to as congenital ovarian hypoplasia syndrome is a chromosomal disorder that is the most common sex chromosomal abnormality affecting girls and women.
It occurs in about 1 out of every 5000 live female births and affects all races and regions of the world equally. Turner syndrome is a genetic disorder, but it’s usually not inherited, except in very rare cases.
The name "Turner’s syndrome" comes from Dr. Henry Turner, the physician who first described the collection of its findings in 1938. However, it was not until 1959 that the cause of Turner syndrome was identified. This is the presentation on it.
For unclear reasons thyroid cancers (like almost all diseases of the thyroid) occur about 3 times more often in women than in men. Thyroid cancer can occur at any age, but the risk peaks earlier for women (who are most often in their 40s or 50s when diagnosed) than for men (who are usually in their 60s or 70s.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. Turner syndrome
• Turner syndrome (TS): is a genetic condition that
only affects females.
• The condition is caused by an abnormal
chromosome and affects about one in every 2,500
baby girls, but is much more common among
pregnancies that do not survive to term
(miscarriages and stillbirths).
• TS was named after Dr Henry
Turner, who discovered the condition
in 1938.
3. How do people get Turner
syndrome???
• Turner syndrome is typically caused by
nondisjunction.
• a pair of sex chromosomes fails to separate
during the formation of an egg (or sperm), so,
when an abnormal egg unites with a normal
sperm to form an embryo, that embryo may end
up missing one of the sex chromosomes (X
rather than XX).
• Advanced maternal age is not
associated with an increased
incidence.
5. Cont…
• The abnormality is not inherited from an
affected parent (not passed down from parent
to child).
• because women with Turner syndrome are
usually sterile and cannot have children.
6. Types of Turner syndrome
• Cases of TS where an X chromosome is
completely missing are sometimes referred to
as 'classical' Turner syndrome.
• About 30 percent of girls with the disorder are
only missing the X chromosome in some of their
cells. This mixed chromosome pattern is known
as mosaicism.
• Girls with this pattern may have
fewer symptoms because they still
have some normal (XX) cells.
7. Cont…
• Y chromosome material: In a small percentage
of cases of Turner syndrome, some cells have
one copy of the X chromosome and other cells
have one copy of the X chromosome and some Y
chromosome material.
• These individuals develop
biologically as girls, but the presence
of Y chromosome material increases
the risk of developing a type of
cancer called gonadoblastoma.
8. Genetics of turner’s syndrome
45,X 50%
46,X,i(Xq) 15%
45,X/46,XX mosaics 15%
45,X/46,X,i(Xq) mosaics about 5%
45,X, other X abnormality about 5%
Other 45,X/? mosaics about 5%
9. Characteristics
• Girls and women who have TS often have a wide
range of different medical symptoms, or
characteristics.
• However, there are two characteristics that
occur in almost all cases of TS. They are:
being shorter than average in
height
a lack of development of the
ovaries, leading to infertility
10. Cont…
• One of the missing genes on the X chromosome
is the SHOX gene, which is responsible for long
bone growth.
• The missing SHOX gene is the reason girls who
have the disorder are unusually short.
• Other missing genes regulate
ovarian development, which
influences sexual characteristics.
11. • Possible symptoms in young infants include:
Swollen hands and feet
Wide and webbed neck and a low or indistinct hairline
• A combination of the following symptoms may be seen
in older females:
Absent or incomplete development at puberty
A broad chest and widely spaced nipples
Drooping eyelids , Dry eyes
Infertility
No periods (absent menstruation)
Short height
Vaginal dryness
Arms that turn out slightly at the elbow
12.
13.
14. • Short stature (143-145cm tall)
• Loss of ovarian function
• Hormone imbalances( thyroid, diabetes)
• Stress and emotional deprivation
• Diseases affecting the kidneys, heart, lungs or
intestines
• Bone diseases
• Learning problems( esp. in maths)
Clinical features
15. A heart murmur, sometimes associated with
narrowing of the aorta.
A tendency to develop high blood pressure (so
this should be checked regularly).
Scoliosis occurs in 10 percent of adolescent
girls
The thyroid gland becomes under-active in
about 10 percent of women who have Turner
syndrome.
Older or over-weight women with
Turner syndrome are slightly more
at risk of developing diabetes.
Osteoporosis can develop because
of a lack of estrogen.
16. Diagnosis
• About half of the cases are diagnosed within
the first few months of a girl's life by the
characteristic physical symptoms .(swelling of
the hands and feet, or a heart defect).
• Other patients are diagnosed in
adolescence because they fail to
grow normally or go through
puberty.
17. Cont…
• When the doctor suspects Turner syndrome, a
blood sample can be used to make a karyotype
and the diagnosis can be confirmed.
18. Cont…
• Turner syndrome may be diagnosed during
pregnancy with a chorionic villus sampling (CVS)
or amniocentesis.
• Alternatively, an ultrasound can identify the
disorder by its physical symptoms before the
baby is born (signs of underdevelopment).
19.
20. Treatment
• Hormone replacement therapy is the best way
to treat this disorder.
Teenagers are treated with growth hormone to help
them reach a normal height.
They may also be given low doses of
androgens (male hormones which
females also produce in small quantities)
to increase height and encourage normal
hair and muscle growth.
Some patients may take the female
hormone estrogen to promote normal
sexual development.
Editor's Notes
Turner syndrome is named for Dr. Henry Turner, who in 1938 published a report describing the disorder.
In 75-80% of cases, the single X chromosome comes from the mother's egg; the father's sperm that fertilizes the egg is missing its sex chromosome.
As stature and sexual development are the two main characteristics of TS, the condition may go undiagnosed until a girl reaches school age or puberty.As stature and sexual development are the two main characteristics of TS, the condition may go undiagnosed until a girl reaches school age or puberty.As stature and sexual development are the two main characteristics of TS, the condition may go undiagnosed until a girl reaches school age or puberty.
Women with Turner syndrome appear to have a stocky appearance, arms that turn out slightly at the elbow, a receding lower jaw, a short webbed neck, and low hairline at the back of the neck.