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Detection of human erythrocytes influenced by iron deficiency anemia and thalassemia using atomic force microscopy
Yuping Zhang1, Wei Zhang, Shunqing Wang
1Department of Hematology, Guangzhou First Municipal People's Hospital Affiliated to Guangzhou Medical College, Guangzhou 510180, PR China. jnzhangyuping@163.com
Purpose:
Iron deficiency anemia (IDA) and thalassemia (THAL) are two types of microcytic anemia, and both of these conditions disturb the morphology and function of erythrocytes at the molecular level. The ability to distinguish between thalassemic and iron deficiency anemia microcytosis has important clinical implications. The purpose of this study was to show that pathophysiological changes to erythrocytes could be detected at the nanometer scale, which is important for the early diagnosis of anemia and for distinguishing between IDA and THAL.
Methods:
Blood samples were taken from six healthy volunteers and six patients with either iron deficiency anemia or thalassemia. Changes in the morphological of erythrocytes were studied at the nanometer level using atomic force microscopy (AFM).
Results:
There were dramatic overall shape and surface membrane deformations of the erythrocytes associated with iron deficiency anemia and thalassemia compared to healthy erythrocytes. Healthy and pathological erythrocytes of iron deficiency anemia and thalassemia could be distinguished by the morphologic parameters of width, length, the ratio of length to width, valley, peak, valley-to-peak, standard deviations, and surface fluctuation. These AFM parameters of erythrocyte morphology differed greatly between iron deficiency anemia and thalassemia.
Conclusion:
AFM was found to be an extremely useful tool for detecting and distinguishing between iron deficiency anemia and thalassemia. Erythrocyte morphology is an important determinant for diagnosing and distinguishing IDA and THAL.
Insights
Atomic Force Microscopy (AFM) can detect nanometer-scale changes in red blood cell morphology. This technique effectively distinguishes between iron deficiency anemia and thalassemia, aiding in early diagnosis.
Area of Science:
- Hematology
- Nanotechnology
- Biophysics
Background:
- Iron deficiency anemia (IDA) and thalassemia (THAL) are microcytic anemias affecting erythrocyte morphology and function.
- Distinguishing between IDA and THAL is clinically significant for appropriate patient management.
Purpose of the Study:
- To demonstrate that pathophysiological changes in erythrocytes can be detected at the nanometer scale using AFM.
- To establish AFM's utility in early anemia diagnosis and differentiating IDA from THAL.
Main Methods:
- Erythrocyte morphology was analyzed at the nanometer scale using Atomic Force Microscopy (AFM).
- Blood samples were obtained from healthy volunteers and patients diagnosed with IDA or THAL.
Main Results:
- Significant differences in erythrocyte shape and surface membrane were observed between healthy individuals and patients with IDA or THAL.
- AFM parameters including width, length, valley-to-peak ratio, and surface fluctuation effectively differentiated between healthy, IDA, and THAL erythrocytes.
- Morphological parameters showed distinct variations between IDA and THAL erythrocytes.
Conclusions:
- AFM is a valuable tool for detecting and distinguishing between IDA and THAL based on erythrocyte morphology.
- Erythrocyte morphology at the nanometer scale is a critical factor in diagnosing and differentiating IDA and THAL.
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