Search results
Results from the WOW.Com Content Network
Alpha-thalassemia (α-thalassemia, α-thalassaemia) is a form of thalassemia involving the genes HBA1 [5] and HBA2. [6] Thalassemias are a group of inherited blood conditions which result in the impaired production of hemoglobin , the molecule that carries oxygen in the blood. [ 7 ]
Alpha thalassemia major is generally fatal to the unborn child, as zero functional hemoglobin is produced during gestation. Less severe alpha thalassemia may affect growth and development. [18] Beta thalassemia symptoms typically begin to show during the first six months of life, as the body winds down production of fetal hemoglobin HbF.
Though only definitively diagnosable by genetic sequence testing, including a G band analysis, ATR-16 syndrome may be diagnosed from its constellation of symptoms. It must be distinguished from ATR-X syndrome, a very similar disease caused by a mutation on the X chromosome, and cases of alpha-thalassemia that co-occur with intellectual disabilities with no underlying genetic relationship.
Hemoglobin H disease, also called alpha-thalassemia intermedia, is a disease affecting hemoglobin, the oxygen carrying molecule within red blood cells. It is a form of Alpha-thalassemia which most commonly occurs due to deletion of 3 out of 4 of the α-globin genes. [1]
Thalassemia subtypes of clinical significance are alpha thalassemia and beta thalassemia. A third subtype, delta thalassemia, affects production of HBA2 and is generally asymptomatic. [26] The severity of alpha thalassemia depends on how many of the four genes that code for alpha globin are faulty.
Alpha-thalassemia mental retardation syndrome (ATRX), also called alpha-thalassemia X-linked intellectual disability syndrome, nondeletion type or ATR-X syndrome, [1] is an X-linked recessive condition associated with a mutation in the ATRX gene. [2]
The symptoms of Alpha-gal syndrome. AGS can cause a range of symptoms: mild ones like a rash or hives, or more severe ones such as difficulty breathing, and even anaphylaxis, ...
It is also cheap and easy, making regular screening for alpha-thalassemia a plausible possibility. [ 9 ] [ 10 ] Anemia is a factor in fetuses with Hemoglobin Bart's disease as there is an "increased cardiac output" and hypovolemia as the tissues of the fetus require oxygen because of the gamma globulin's high affinity for oxygen.