Yes, Adenosine Deaminase (ADA) deficiency can be treated by bone marrow transplantation (Option 2).
However, other possible treatments include:
Enzyme Replacement Therapy (ERT): Injecting ADA enzyme into the patient.
Gene Therapy: Introducing a functional ADA gene into the patient's cells using a viral vector.
Bone marrow transplantation is a potential permanent cure if a suitable donor is available.
Bone marrow transplantation, also known as hematopoietic stem cell transplantation, is the primary curative treatment for ADA deficiency.
The procedure involves replacing the patient's faulty bone marrow cells with healthy stem cells from a compatible donor. The transplanted stem cells, which contain the functional ADA gene, can produce normal ADA enzyme activity and restore immune function in the patient.
The reason bone marrow transplantation is effective in treating ADA deficiency is that bone marrow is the site of hematopoiesis, where blood cells, including immune cells, are produced. By replacing the defective bone marrow cells with healthy ones, the patient receives a source of functional ADA enzyme, which helps in the proper development and functioning of immune cells.
List-I | List-II |
(A) Thalassemia | (I) 47, XXY |
(B) Klinefelter’s syndrome | (II) Sex-linked recessive disorder |
(C) Turner’s syndrome | (III) 45, XO |
(D) Colour blindness | (IV) Autosomal recessive disease |
List I | List II | ||
A | Down’s syndrome | I | 11th chormosome |
B | α-Thalassemia | II | ‘X’ chromosome |
C | β-Thalassemia | III | 21st chromosome |
D | Klinefelter’s syndrome | IV | 16th chromosome |
A block of certain mass is placed on a rough floor. The coefficients of static and kinetic friction between the block and the floor are 0.4 and 0.25 respectively. A constant horizontal force \( F = 20 \, \text{N} \) acts on it so that the velocity of the block varies with time according to the following graph. The mass of the block is nearly (Take \( g = 10 \, \text{m/s}^2 \)):
A wooden block of mass M lies on a rough floor. Another wooden block of the same mass is hanging from the point O through strings as shown in the figure. To achieve equilibrium, the coefficient of static friction between the block on the floor and the floor itself is
The circuit shown in the figure contains two ideal diodes \( D_1 \) and \( D_2 \). If a cell of emf 3V and negligible internal resistance is connected as shown, then the current through \( 70 \, \Omega \) resistance (in amperes) is: