Presentation
In contrast, homozygous Hb E patients do not usually manifest infections. [4] In the present case, the patient presented with low-grade fever and anemia and while investigating him, coexistent mycobacterium tuberculosis infection was revealed along with [ijpmonline.org]
In both of these S/Aß+ classifications, the clinical picture correlates with the percentage of hemoglobin S present. S/Aß0 is also a common presentation in the Mediterranean, Iranian, and Chinese/Southeastern Asian ethnic groups. [clinicaladvisor.com]
Presentation on theme: "Presented to: Dr Lesley Johnson Human disease=Beta Thalassemia By PresenterMedia.com PresenterMedia.com. [slideplayer.com]
With no deletions, there is approximately 20% HbG, with one deletion about 30% G is present, and with two about 40% is present. *** Also known as D Punjab (same mutation) # Not a mutation, Lepore is the product of the indicated crossover during meiosis [wardelab.com]
Patients with thalassemia intermedia present later in life with moderate anemia and do not require regular transfusions. [ncbi.nlm.nih.gov]
Hematological
- Beta Thalassaemia Major
The most common is beta thalassaemia major. A child born with beta thalassaemia major appears well at first, because the baby still has a store of fetal haemoglobin in its blood. [healthtalk.org]
There are different types of thalassaemia, which can be divided into alpha and beta thalassaemias. Beta thalassaemia major is the most severe type. Other types include beta thalassaemia intermedia, alpha thalassaemia major and haemoglobin H disease. [nhs.uk]
Google Scholar Farmaki K, Angelopoulos N, Anagnostopoulos G, Gotsis E, Rombopoulos G, Tolis G: Effect of enhanced iron chelation therapy on glucose metabolism in patients with beta-thalassaemia major. [ojrd.biomedcentral.com]
Immune System
- Splenomegaly
Cooley and Lee described bone abnormalities and severe anemia with associated splenomegaly in 1921 5. Promoted articles (advertising) [radiopaedia.org]
Hemoglobin C disease is relatively benign, producing a mild hemolytic anemia and splenomegaly. Hemoglobin C trait is benign. Hemoglobin E. This variant results from a mutation in the hemoglobin beta chain. [sickle.bwh.harvard.edu]
An abnormally enlarged spleen (splenomegaly) can cause severe pain and contribute to anemia. Splenomegaly can cause low levels of the blood cells (platelets) that allow the blood to clot. [rarediseases.org]
Hemolytic microcytic hypochromic anemia from birth; splenomegaly. One or two genes affected: Asymptomatic or discreet symptomatology. [atlasgeneticsoncology.org]
It represents a thalassaemia intermedia, with mildly to moderately severe anaemia, splenomegaly, jaundice, and abnormal RBC indices. [patient.info]
Entire Body System
- Anemia
The most common reason of anemia is seen as iron deficiency which is the reason for the most part of all anemia cases and may be treated by taking iron. Moreover, hemoglobinopathies may also frequently cause anemia. [synevo.com.tr]
Clinical Chemistry 287 Author Index 381 Subject Index 408 Contents of Previous Volumes 413 حقوق النشر عبارات ومصطلحات مألوفة abnormal absorption acid phos acid phosphatase activity Acta ACTH adrenal aldosterone Amer amino acid Anal analysis analyzer anemia [books.google.com]
The predisposing factors of infections in thalassemia include splenectomy, iron overload, anemia and granulocyte dysfunctions. [ijpmonline.org]
Restless legs syndrome is more common in those with iron deficiency anemia. Anemia After Complicated Myocardial Infarction Worsens Outcome 2009 .. [flipper.diff.org]
Associated with Hemoglobin S-C, Anemia Associated with Hemoglobin S-D, and Anemia Associated with Hemoglobin O-Arab). [clinicaladvisor.com]
- Asymptomatic
The other reason is that Hb E disease is mostly asymptomatic; therefore, its association with tuberculosis may not be revealed. [ijpmonline.org]
One or two genes affected: Asymptomatic or discreet symptomatology. [atlasgeneticsoncology.org]
Thalassemia minor is clinically asymptomatic but some subjects may have moderate anemia. [ncbi.nlm.nih.gov]
α+ thalassaemia homozygous (genotype α,-/α,-): slightly anaemic, low MCV and MCH; clinically asymptomatic. αo thalassaemia heterozygous (genotype α,α/,--): slightly anaemic, low MCV and MCH; clinically asymptomatic. [patient.info]
Hypochromic microcytes and target cells are the main features in asymptomatic individuals. [clinlabnavigator.com]
Neurologic
- Hyperactivity
Supplementary folic acid can be prescribed to patients with thalassemia intermedia to prevent deficiency from hyperactive bone marrow. [ojrd.biomedcentral.com]
Workup
We routinely screen all couples for hemoglobin alpha (HBA) gene deletions when performing molecular workup for beta thalassemia prenatal diagnosis. [ashclinicalnews.org]
Clinical Testing and Workup Physicians will take a blood sample from individuals suspected of having beta thalassemia. Several different tests can be performed on a single blood sample. [rarediseases.org]
This study supports the integration of broad unbiased genetic screening into the diagnostic workup of children and young adults with bone marrow failure and myelodysplastic syndromes. [profiles.stanford.edu]
Serum
- Microcytic Anemia
It is found primarily in Southeast Asia. rs33950507 (A) is associated with somewhat increased malarial resistance, and in homozygous (A;A) state, with mild hypochromic microcytic anemia.[ PMID 16114182 ] [ PMID 19087310 ] Microarray-based estimation of [snpedia.com]
Thalassemia The most common causes of hypochromic microcytic anemia are the following: Iron deficiency anemia Thalassemia Sideroblastic anemias (hereditary or acquired secondary to a toxic effect such as lead poisoning, or drugs) Severe anemia of chronic [clinlabnavigator.com]
The resultant microcytic anemia is the characteristic presenting symptom of the thalassemias. [radiopaedia.org]
Doubly heterozygous HbO/ Thalassemia also is associated with a relatively severe microcytic anemia with a hemoglobin as low as 6 g/dl. [wardelab.com]
Consequently, affected individuals do not receive enough oxygen-rich blood (microcytic anemia) throughout the body. Affected individuals may experience classic signs of anemia including fatigue, weakness, shortness of breath, dizziness or headaches. [rarediseases.org]
- Heinz Bodies
The Heinz Bodies are seen as antigenic and are quickly phagocytosed. Because the Heinz Bodies are derivatives of hemoglobin, they are located inside the cell, and thus phagocytosis takes a significant “bite” out of the cell. [theartofmed.wordpress.com]
Dacie JW, Grimes AJ, Meisler A, Steingold L, Hemstedt EH, Beaven GH, White JC: Hereditary Heinz-body anemia. A report of studies on 5 patients with mild anemia. Br J Haemat 1964; 10: 388. e13. [aerzteblatt.de]
These inclusions are called Heinz bodies and represent β-chain tetramers (HbH). [patient.info]
Furthermore, the beta-globin chains are capable of forming soluble tetramers (β 4, or hemoglobin H [HbH]); yet this form of hemoglobin is unstable and tends to precipitate within the cell, forming insoluble inclusions (Heinz bodies) that damage the red [emedicine.medscape.com]
Howell-Jolly bodies B. basophilic stippling C. Heinz bodies D. Pappenheimer bodies An automated platelet count indicates platelet clumping, which is confirmed by examining the smear. [quizlet.com]
- Neutropenia
R. 2009 ; 53 (1) : 97-99 Abstract Neonatal thrombocytopenia or neutropenia may result from passive transfusion of maternally derived antibodies. [profiles.stanford.edu]
A. neutropenia and thrombocytopenia B. decreased LD activity C. increased erythrocyte folate levels D. decreased plasma bilirubin levels The disease most frequently present in patients with atypical lymphocytosis and persistently negative tests is: A. [quizlet.com]
Koenig JM, Christensen RD (1989) Neutropenia and thrombocytopenia in infants with Rh hemolytic disease. J Pediatr 114:625–631 PubMed Google Scholar 314. [link.springer.com]
- Macrocytic Anemia
Megaloblastic Anemia The most common cause of macrocytic anemia is megaloblastic anemia, which is the result of impaired DNA synthesis. [theartofmed.wordpress.com]
- Anisopoikilocytosis
Peripheral blood smear examination showed mild anisopoikilocytosis with microcytes and target cells. There was mild hypochromia. Platelets were adequate on smear. [ijpmonline.org]
Microbiology
- Plasmodium Falciparum
The high gene frequency of beta-thalassemia in these regions is most likely related to the selective pressure from Plasmodium falciparum malaria [ 1 ]. [ojrd.biomedcentral.com]
Hadley T, Saul A, Lamont G et al (1983) Resistance of Melanesian elliptocytes (ovalocytes) to invasion by Plasmodium knowlesi and Plasmodium falciparum malaria parasites in vitro. J Clin Invest 71:780–782 PubMed Google Scholar 245. [link.springer.com]
Treatment
But with current treatments, people are likely to live into their 50s, 60s and beyond. [nhs.uk]
Alternate form of treatment is presence of beta like chain i.e. Hb F (fetal hemoglobin). [slideplayer.com]
Children with CleftLip Palate from Birth to 10 Years of Age 1763 107 Growth of Infants with Isolated Robin Sequence 1779 108 Orthognathic Surgery Considerations in the Young Patient and Effects on Facial Growth 1789 Effects on Facial Growth and Surgical Treatment [books.google.com]
Standard Therapies Treatment Individuals with beta thalassemia major and intermedia will benefit from referral to a thalassemia treatment center. [rarediseases.org]
At that time they did the treatment. However if your GP is helpful and refers you to the hospital then you could receive better treatment. Our GP was very helpful during this time. They did the treatment and understood. [healthtalk.org]
Prognosis
Prognosis for individuals with beta-thalassemia has improved substantially in the last 20 years following recent medical advances in transfusion, iron chelation and bone marrow transplantation therapy. [ncbi.nlm.nih.gov]
Prognosis The prognosis depends on the severity of the disease and adherence to treatment: α thalassaemia The prognosis is excellent for asymptomatic carriers. The overall survival for HbH disease is good overall but variable. [patient.info]
Prognosis For silent carriers and individuals with alpha thalassemia trait, the prognosis is excellent. For individuals with HbH disease, the overall survival rate varies but is generally good, with most patients surviving into adulthood. [emedicine.medscape.com]
Prognosis Prognosis of thalassemia minor subjects is excellent. An increased risk for cholelithiasis, especially in association with the Gilbert mutation has been demonstrated [ 92 ]. [ojrd.biomedcentral.com]
Prognosis As discussed above, the prognosis for individuals with the most serious types of thalassemia has improved drastically in the last several years following recent medical advances in transfusion, chemo-, and transplantation therapy. [medical-dictionary.thefreedictionary.com]
Etiology
They are organised into groups, and further divided into clinical, etiological or histopathological sub-types. [orpha.net]
Nondiabetic patients were used in the study. [11] Etiology Normal hemoglobin biosynthesis requires an intact gene, silencers, enhancers, promoters, and locus control region (LCR) sequences. [emedicine.medscape.com]
REFERENCES 1 Etiologies, consequences, and treatment of iron overload. Crit Rev Clin Lab Sci 1994 ; 31 : 89 – 133. 2 Inherited haemoglobin disorders: an increasing global health problem. [ajcn.nutrition.org]
Kaufman DW, Kelly JP, Levy M, Shapiro S (1991) The drug etiology of agrunlocytosis and aplastic anaemia. Oxford University Press, New York Google Scholar 299. [link.springer.com]
Epidemiology
Organic Pollutants and Fetal Growth 2559 153 n3 Polyunsaturated Fatty Acids and Foetal Growth 2579 154 Polyunsaturated Fatty Acids and Growth in Healthy Children and Some Rare Diseases 2597 155 Folate and Fetal Growth 2619 Growth Exercise and Nutrition Epidemiological [books.google.com]
This is not an epidemiological study, and thus it is unknown to what extent these data are representative. [aerzteblatt.de]
Highest rate is in Cyprus= 14%, Sardinia =10.3%, and Southeast Asia as well. carriers =80-90 million Epidemiology 11 Pattern Of inheritance 12 Diarrhea, enlargement of abdomen because of hepatosplenomagly and jaundice. [slideplayer.com]
[…] mutations, it provides an increased resistance to malaria ( P. falciparum ). [5] This disease was first described by Virginia Minnich in 1954, who discovered a high prevalence of it in Thailand and initially referred to it as "Mediterranean Anaemia." [7] Epidemiology [en.wikipedia.org]
Epidemiology United States statistics The frequency of alpha thalassemia is low among whites. [emedicine.medscape.com]
Pathophysiology
Steinberg MH, Forget BG, Higgs DR, Nagel RL, (eds.): Disorders of hemoglobin: genetics, pathophysiology and clinical management. 1. Auflage. New York, Cambridge: University Press 2001. e21. [aerzteblatt.de]
Nissen C (1991) The pathophysiology of aplastic anemia. Sem Hem 28:313–318 Google Scholar 391. Noguchi CT, Schechter AN, Rodgers GP (1993) Sickle cell disease pathophysiology. Clin Hematol 6:57–91 Google Scholar 392. [link.springer.com]
Pathophysiology Genes that regulate both the synthesis and the structure of different globins are organized into 2 separate clusters. [emedicine.medscape.com]
We believe this approach is likely to yield new insights into our understanding of the molecular pathophysiology of ITP. [profiles.stanford.edu]
View Article PubMed Google Scholar Thein SL: Dominant beta thalassaemia: molecular basis and pathophysiology. Br J Haematol. 1992, 80: 273-277. 10.1111/j.1365-2141.1992.tb08132.x. [ojrd.biomedcentral.com]
Prevention
Since thalassemia is a genetic disorder, there’s no way to prevent it. However, there are ways you can manage the disease to help prevent complications. [healthline.com]
This helps scientists look for better ways to prevent and treat thalassaemia. You can opt out of the register at any time. [nhs.uk]
Prevention This disease is inherited. Blood tests and family genetic studies will show if you are a carrier. A genetic counselor can discuss the risks of passing on the disease. References: Explore thalassemias. [cancercarewny.com]
Approximately 1 in 375 African American babies are born with sickle cell disease, and about 100,000 Americans live with the disorder, according to the Centers for Disease Control and Prevention. [labtestsonline.org]