In the following list you will find some of the most common rare diseases related to Anemia and Abnormality of the eye that can help you solving undiagnosed cases.
Ss blood group antigens reside on the red-cell glycoprotein GYPB. The S and s antigens result from a polymorphism at amino acid 29 of GYPB, where S has met29 and s has thr29. The U antigen refers to a short extracellular sequence in GYPB located near the membrane. GYPB, glycophorin A (GYPA ), and glycophorin E (GYPE ) are closely linked on chromosome 4q31. Antigens of the MN blood group (OMIM ) reside on GYPA. The M and N antigens differ at amino acids 1 and 5 of GYPA, where M is ser-ser-thr-thr-gly, and N is leu-ser-thr-thr-glu. The N terminus of GYPB is essentially identical to that of GYPA except that it always expresses the N antigen, denoted 'N' or N-prime. Recombination and gene conversion between GYPA, GYPB, and GYPE lead to hybrid glycophorin molecules and generation of low-incidence antigens. Thus, the MN and Ss blood groups are together referred to as the MNSs blood group system (see {111300}). Recombination results in 3 glycophorin-null phenotypes: En(a-) cells lack GYPA due to recombination between GYPA and GYPB; GYPB-negative (S-s-U-) cells lack GYPB due to recombination in GYPB; and M(k) cells (M-N-S-s-U-) lack both GYPA and GYPB due to recombination between GYPA and GYPE. Individuals with glycophorin-null phenotypes have decreased sialic acid content and increased resistance to malarial infection (see {611162}). GYPA and GYPB are not essential for red-cell development or survival, and GYPA- and GYPB-null phenotypes are not associated with anemia or altered red-cell function (review by Cooling, 2015).
BLOOD GROUP, SS; SS Is also known as ss blood group
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MN antigens reside on GYPA, one of the most abundant red-cell glycoproteins. The M and N antigens are 2 autosomal codominant antigens encoded by the first 5 amino acids of GYPA and include 3 O-linked glycans as part of the epitope. M and N differ at amino acids 1 and 5, where M is ser-ser-thr-thr-gly, and N is leu-ser-thr-thr-glu. M is the ancestral GYPA allele and is common in all human populations and Old World apes. GYPA, glycophorin B (GYPB ), and glycophorin E (GYPE ) are closely linked on chromosome 4q31. The N terminus of GYPB is essentially identical to that of GYPA except that it always expresses the N antigen, denoted 'N' or N-prime. Antigens of the Ss blood group (OMIM ) reside on GYPB, and recombination and gene conversion between GYPA, GYPB, and GYPE lead to hybrid glycophorin molecules and generation of low-incidence antigens. Thus, the MN and Ss blood groups are together referred to as the MNSs or MNS blood group system. The U antigen refers to a short extracellular sequence in GYPB located near the membrane. Recombination results in 3 glycophorin-null phenotypes: En(a-) cells lack GYPA due to recombination between GYPA and GYPB; GYPB-negative (S-s-U-) cells lack GYPB due to recombination in GYPB; and M(k) cells (M-N-S-s-U-) lack both GYPA and GYPB due to recombination between GYPA and GYPE. Individuals with glycophorin-null phenotypes have decreased sialic acid content and increased resistance to malarial infection (see {611162}). GYPA and GYPB are not essential for red-cell development or survival, and GYPA- and GYPB-null phenotypes are not associated with anemia or altered red-cell function (review by Cooling, 2015).
BLOOD GROUP, MN; MN Is also known as mn blood group
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Polyagglutination refers to red blood cells that agglutinate upon exposure to almost all human sera, but not to autologous serum or the sera of newborns. The condition becomes apparent during blood typing and cross-matching in the laboratory (summary by Beck, 2000).Tn polyagglutination syndrome is an acquired clonal disorder characterized by the polyagglutination of red blood cells by naturally occurring anti-Tn antibodies following exposure of the Tn antigen on the surface of erythrocytes. Only a subset of red cells express the antigen, which can also be expressed on platelets and leukocytes. This condition may occur in healthy individuals who manifest asymptomatic anemia, leukopenia, or thrombocytopenia; however, there is also an association between the Tn antigen and leukemia or myelodysplastic disorders. The Tn antigen is an incompletely glycosylated membrane glycoprotein with an exposed N-acetylgalactosamine residue. The Tn antigen results from inactivation of C1GALT1C1, which encodes a chaperone required for the correct functioning of T-synthetase (C1GALT1 ), an enzyme essential for the correct biosynthesis of O-glycans. Absence of active T-synthetase results in exposure of GalNAc residues, with a proportion of these residues becoming sialylated and forming a sialyl-Tn antigen (summary by Vainchenker et al., 1985 and Crew et al., 2008).
TN POLYAGGLUTINATION SYNDROME; TNPS Is also known as galactosyltransferase deficiency
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SICKLE CELL-HEMOGLOBIN C DISEASE SYNDROME Is also known as hbsc disease
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Muscle phosphofructokinase (PFK) deficiency (Tarui's disease), or glycogen storage disease type 7 (GSD7), is a rare form of glycogen storage disease characterized by exertional fatigue and muscular exercise intolerance. It occurs in childhood.
GLYCOGEN STORAGE DISEASE DUE TO MUSCLE PHOSPHOFRUCTOKINASE DEFICIENCY Is also known as tarui disease|glycogen storage disease type 7|glycogen storage disease type vii|gsd type 7|glycogenosis type 7|glycogenosis due to muscle phosphofructokinase deficiency|gsd type vii|glycogenosis type vii|gsd due to muscle phosphofructokinase deficiency
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SPHEROCYTOSIS, TYPE 3; SPH3 Is also known as spherocytosis, hereditary, 3|hs3
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SPHEROCYTOSIS, TYPE 5; SPH5 Is also known as spherocytosis, hereditary, 5|hs5
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Erythropoietic protoporphyria (EPP) is an inherited disorder of the heme metabolic pathway characterized by accumulation of protoporphyrin in blood, erythrocytes and tissues, and cutaneous manifestations of photosensitivity.
AUTOSOMAL ERYTHROPOIETIC PROTOPORPHYRIA Is also known as epp
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Symptoms // Phenotype | % cases |
---|---|
Hemolytic anemia | Uncommon - Between 30% and 50% cases |
Neoplasm | Rare - less than 30% cases |
Leukemia | Rare - less than 30% cases |
Spherocytosis | Rare - less than 30% cases |
Increased muscle glycogen content | Rare - less than 30% cases |
Patients with Anemia and Abnormality of the eye. may also develop some of the following symptoms:
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