scholarly journals OVALOCYTOSIS ASSOCIATED WITH THE SICKLE CELL TRAIT

Blood ◽  
1949 ◽  
Vol 4 (5) ◽  
pp. 505-510 ◽  
Author(s):  
ROBERT S. FADEM

Abstract 1. A patient has been presented whose circulating red blood cells were composed of 65-84 per cent ovalocytes, 3-11 per cent sickled cells, and some normal appearing discoid cells. 2. The red blood cell counts and the blood indices were within normal limitations. 3. The red blood cells showed an increased resistance to hypotonic saline solutions. See PDF for Table See PDF for Table See PDF for Table 4. The peripheral blood showed a daily variation in the percentage of circulating ovalocytes, from 65 per cent to 84 per cent, and in the percentage of circulating sickle cells, from 3 per cent to 11 per cent. 5. After 72 hours in fresh wet preparations the per cent of ovalocytes remained essentially unchanged from that of fresh fixed blood. 6. The percentage of sickled cells was found to be increased after 18, 24, and 72 hours in fresh wet preparations as compared to the percentage of sickled cells found in fresh fixed preparations. 7. Some of the normal appearing discoid red blood cells were observed to sickle in fresh wet preparations within 18 hours.

2019 ◽  
Vol 7 (4) ◽  
pp. 185-198 ◽  
Author(s):  
Tina Porwal

The effects of Talinum triangulare on the haematological indices of Clarias gariepinus was investigated. T. triangulare leaf powder at 0, 0.5, 1.0, and 3.0% concentrations were fed to Clarias gariepinus juveniles (n=84; 117.3 ± 1.57 g; 26.70 ± 0.26 cm) as feed additive for a period of six (6) weeks.  The packed cell volume (PCV) and Haemoglobin (Hb) concentration values, 34.67 ± 0.67%, 12.03 ± 0.26g/dl, respectively observed in the group fed with 1.0% were significantly higher (P<0.05) compare with the control group. Red blood cell counts (RBCs), white blood cell counts (WBCs), lymphocytes, MCV, MCH and MCHC recorded were marginally different (P>0.05) among the groups, were within standard for Clarias gariepinus, therefore adjudged not to indicate a negative physiological effect on the experimental fish. Blood indices values observed revealed that the varying additive levels of T. triangulare used had no negative physiological stress on the health status of the fish studied and haematological values observed were seen to be best in the group fed 1.0% T. triangulare. It could be recommended that 10g/kg of Talinum triangulare leaf powder be included in the diet of Clarias gariepinus for boosting of the animal blood and treatment of disease conditions such as anaemia.


2017 ◽  
Vol 24 (04) ◽  
pp. 612-616
Author(s):  
Faisal Irshad ◽  
Hina Mawani ◽  
Sana Naz

Objectives: To determine the effects of Allium sativum essential oil (ASEO)phytotherapy on serum triglycerides, total cholesterol, HDLc, LDLc and blood cell counts inalbino rat model. Study design: Experimental study. Setting and Duration: Animal House,Sindh Agriculture University and Isra University Hyderabad from May 2014 to January 2015.Materials and Methods: 60 albino rats were divided into four groups. Controls were givenPlacebo. Experimental rat groups were given ASEO 100 mg/kg, 200 mg/kg and 300 mg/kgorally for 30 days. Cardiac puncture was performed for blood sampling. Research variableswere analyzed on Statistix 10.0 (USA). Results: Blood lipids showed significant reduction invarious blood lipid fractions. Serum LDLc exhibited with a concomitant rise in serum HDLc (p=0.0001) in high ASEO treated rats. Red blood cells, white blood cells and platelet showedsignificant improvement ASEO fed rats (p=0.001). Conclusion: Allium sativum essential oil(ASEO) phytotherapy showed a rise in HDLc and a reduction in LDLc, triglycerides and totalcholesterol with improvement in red blood cell counts.


2020 ◽  
Author(s):  
Tiancheng Xia ◽  
Richard Fu ◽  
Nanlin Jin ◽  
Paul Chazot ◽  
Plamen Angelov ◽  
...  

Microscopic blood cell analysis is an important methodology for medical diagnosis, and complete blood cell counts (CBCs) are one of the routine tests operated in hospitals. Results of the CBCs include amounts of red blood cells, white blood cells and platelets in a unit blood sample. It is possible to diagnose diseases such as anemia when the numbers or shapes of red blood cells become abnormal. The percentage of white blood cells is one of the important indicators of many severe illnesses such as infection and cancer. The amounts of platelets are decreased when the patient suffers hemophilia. Doctors often use these as criteria to monitor the general health conditions and recovery stages of the patients in the hospital. However, many hospitals are relying on expensive hematology analyzers to perform these tests, and these procedures are often time consuming. There is a huge demand for an automated, fast and easily used CBCs method in order to avoid redundant procedures and minimize patients’ burden on costs of healthcare. In this research, we investigate a new CBC detection method by using deep neural networks, and discuss state of the art machine learning methods in order to meet the medical usage requirements. The approach we applied in this work is based on YOLOv3 algorithm, and our experimental results show the applied deep learning algorithms have a great potential for CBCs tests, promising for deployment of deep learning methods into microfluidic point-of-care medical devices. As a case of study, we applied our blood cell detector to the blood samples of COVID-19 patients, where blood cell clots are a typical symptom of COVID-19.


Open Medicine ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. 87-92
Author(s):  
Olgica B. Vrndic ◽  
Predrag M. Djurdjevic ◽  
Danijela D. Jovanovic ◽  
Ljiljana C. Mijatovic Teodorovic ◽  
Irena R. Kostic ◽  
...  

AbstractThe side effects of radioactive iodine (131-I) treatment of differentiated thyroid cancer (DTC) patients include reduction of peripheral blood cell counts. The aim of this study was to analyze some potential changes in blood cell counts of DTC patients after 131-I therapy, especially CD3-positive, CD19-positive, and CD56-positive peripheral blood lymphocytes (PBL), as well as the possible role of apoptosis in selected lymphocyte populations. The study group included 24 thyroid cancer patients and 24 control subjects. Peripheral blood samples from patients and controls were analyzed using 5-color flow cytometry. Apoptotic cells were detected using an Annexin V-FITC/7-AAD kit. There was a statistically significant decrease of all blood cells after the 131-I therapy. The CD19+ B lymphocyte population was the most affected (5.82 ± 3.21% before therapy vs. 3.93 ± 2.60% after therapy, p = 0.008). This decrease was correlated with the degree of apoptosis of peripheral blood lymphocytes (Spearman’s r = 0.563, p =0.013). We concluded that 131-I therapy of DTC patients led to a decrease of all peripheral blood cells, especially CD19+ B lymphocytes. This directly correlated with apoptosis of PBLs, indicating that radiation damage to B cells leads to subsequent elimination by apoptosis.


Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 358
Author(s):  
Ann-Kathrin Reichenwallner ◽  
Esma Vurmaz ◽  
Kristina Battis ◽  
Laura Handl ◽  
Helin Üstün ◽  
...  

We demonstrate a blood analysis routine by observing red blood cells through light and digital holographic microscopy in a microfluidic channel. With this setup a determination of red blood cell (RBC) concentration, the mean corpuscular volume (MCV), and corpuscular hemoglobin concentration mean (CHCM) is feasible. Cell count variations in between measurements differed by 2.47% with a deviation of −0.26×106 μL to the reference value obtained from the Siemens ADVIA 2120i. Measured MCV values varied by 2.25% and CHCM values by 3.78% compared to the reference ADVIA measurement. Our results suggest that the combination of optical analysis with microfluidics handling provides a promising new approach to red blood cell counts.


2020 ◽  
Author(s):  
Tiancheng Xia ◽  
Richard Fu ◽  
Nanlin Jin ◽  
Paul Chazot ◽  
Plamen Angelov ◽  
...  

Microscopic blood cell analysis is an important methodology for medical diagnosis, and complete blood cell counts (CBCs) are one of the routine tests operated in hospitals. Results of the CBCs include amounts of red blood cells, white blood cells and platelets in a unit blood sample. It is possible to diagnose diseases such as anemia when the numbers or shapes of red blood cells become abnormal. The percentage of white blood cells is one of the important indicators of many severe illnesses such as infection and cancer. The amounts of platelets are decreased when the patient suffers hemophilia. Doctors often use these as criteria to monitor the general health conditions and recovery stages of the patients in the hospital. However, many hospitals are relying on expensive hematology analyzers to perform these tests, and these procedures are often time consuming. There is a huge demand for an automated, fast and easily used CBCs method in order to avoid redundant procedures and minimize patients’ burden on costs of healthcare. In this research, we investigate a new CBC detection method by using deep neural networks, and discuss state of the art machine learning methods in order to meet the medical usage requirements. The approach we applied in this work is based on YOLOv3 algorithm, and our experimental results show the applied deep learning algorithms have a great potential for CBCs tests, promising for deployment of deep learning methods into microfluidic point-of-care medical devices. As a case of study, we applied our blood cell detector to the blood samples of COVID-19 patients, where blood cell clots are a typical symptom of COVID-19.


1996 ◽  
Vol 76 (02) ◽  
pp. 184-186 ◽  
Author(s):  
Kenji lijima ◽  
Fumiyo Murakami ◽  
Yasushi Horie ◽  
Katsumi Nakamura ◽  
Shiro Ikawa ◽  
...  

SummaryA 74-year-old female developed pneumonia following herpes simplex encephalitis. Her white blood cell counts reached 28,400/μl, about 90% of which consisted of granulocytes. The polymorphonuclear (PMN) elastase/α1-arantitrypsin complex levels increased and reached the maximum of 5,019 ng/ml, indicating the release of a large amount of elastase derived from the granulocytes. The mechanism of PMN elastase release was most likely to be granulocyte destruction associated with phagocytosis. The cleavage of fibrinogen and fibrin by PMN elastase, independent of plasmin, was indicated by the presence of the fragments in immunoprecipitated plasma from the patient corresponding to elastase-induced FDP D and DD fragments and the absence of fragments corresponding to plasmin-induced FDP D and DD fragments on SDS-PAGE. These findings suggested that the large amount of PMN elastase released from the excessive numbers of granulocytes in this patient with herpes simplex encephalitis and pneumonia, induced the cleavage of fibrinogen and fibrin without the participation of plasmin.


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