scholarly journals Prevalence of readily detected amyloid blood clots in ‘unclotted’ Type 2 Diabetes Mellitus and COVID-19 plasma: A preliminary report

2020 ◽  
Author(s):  
Etheresia Pretorius ◽  
Chantelle Venter ◽  
Gert Jacobus Laubscher ◽  
Petrus Johannes Lourens ◽  
Janami Steenkamp ◽  
...  

Abstract Background: Type 2 Diabetes Mellitus (T2DM) is a well-known comorbidity to COVID-19 and coagulopathies are a common accompaniment to both T2DM and COVID-19. In addition, patients with COVID-19 are known to develop micro-clots within the lungs. The rapid detection of COVID-19 uses genotypic testing for the presence of SARS-Cov-2 virus in nasopharyngeal swabs, but it can have a poor sensitivity. A rapid, host-based physiological test that indicated clotting severity and the extent of clotting pathologies in the individual who was infected or not would be highly desirable. Methods: Platelet poor plasma (PPP) was collected and frozen. On the day of analysis, PPP samples were thawed and analysed. We show here that microclots can be detected in the native plasma of twenty COVID-19, as well as ten T2DM patients, without the addition of any clotting agent, and in particular that such clots are amyloid in nature as judged by a standard fluorogenic stain. Results were compared to ten healthy age-matched individuals.Results: In COVID-19 plasma these microclots are significantly increased when compared to the levels in T2DM. Conclusions: This fluorogenic test may provide a rapid and convenient test with 100% sensitivity (P<0.0001) and is consistent with the recognition that the early detection and prevention of such clotting can have an important role in therapy.

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Etheresia Pretorius ◽  
Chantelle Venter ◽  
Gert Jacobus Laubscher ◽  
Petrus Johannes Lourens ◽  
Janami Steenkamp ◽  
...  

Abstract Background Type 2 Diabetes Mellitus (T2DM) is a well-known comorbidity to COVID-19 and coagulopathies are a common accompaniment to both T2DM and COVID-19. In addition, patients with COVID-19 are known to develop micro-clots within the lungs. The rapid detection of COVID-19 uses genotypic testing for the presence of SARS-Cov-2 virus in nasopharyngeal swabs, but it can have a poor sensitivity. A rapid, host-based physiological test that indicated clotting severity and the extent of clotting pathologies in the individual who was infected or not would be highly desirable. Methods Platelet poor plasma (PPP) was collected and frozen. On the day of analysis, PPP samples were thawed and analysed. We show here that microclots can be detected in the native plasma of twenty COVID-19, as well as ten T2DM patients, without the addition of any clotting agent, and in particular that such clots are amyloid in nature as judged by a standard fluorogenic stain. Results were compared to ten healthy age-matched individuals. Results In COVID-19 plasma these microclots are significantly increased when compared to the levels in T2DM. Conclusions This fluorogenic test may provide a rapid and convenient test with 100% sensitivity (P < 0.0001) and is consistent with the recognition that the early detection and prevention of such clotting can have an important role in therapy.


2020 ◽  
Author(s):  
Etheresia Pretorius ◽  
Chantelle Venter ◽  
Gert Jacobus Laubscher ◽  
Petrus Johannes Lourens ◽  
Janami Steenkamp ◽  
...  

Abstract Background Type 2 Diabetes Mellitus (T2DM) is a well-known comorbidity to COVID-19 and coagulopathies are a common accompaniment to both T2DM and COVID-19. In addition, patients with COVID-19 are known to develop micro-clots within the lungs. The rapid detection of COVID-19 uses genotypic testing for the presence of SARS-Cov-2 virus in nasopharyngeal swabs, but it can have a poor sensitivity. A rapid, host-based physiological test that indicated clotting severity and the extent of clotting pathologies in the individual who was infected or not would be highly desirable. Methods We show here that microclots can be detected in the native plasma of COVID-19, as well as T2DM patients, without the addition of any clotting agent, and in particular that such clots are amyloid in nature as judged by a standard fluorogenic stain. Results In COVID-19 plasma these microclots are significantly increased when compared to the levels in T2DM. Conclusions This fluorogenic test may provide a rapid and convenient test with 100% sensitivity (P < 0.0001), and is consistent with the recognition that the early detection and prevention of such clotting can have an important role in therapy.


2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Nicolas Byron Hatziisaak ◽  
Telemachos Hatziisaak ◽  
Urs Keller

Background — For general practitioners (GPs), it is often not easy to determine the individual glycated hemoglobin (HbA1c)-goal of patients with type 2 diabetes mellitus (T2DM) in order to offer them a tailored treatment and minimize side effects. Usually, they simply rely on their gut feeling. Objective — We assessed the usefulness of an easy-to-use algorithm (GLYCEMIZER®) to calculate individual HbA1c-goals and compared them with targeted (‘gut feeling’ of the GP’s) and achieved levels. Material and Methods — In this cross-sectional survey, general practitioners were asked to report anonymized data of at least 30 consecutive patients with T2DM presenting in their offices from May 1st to August 15th 2016 after obtaining informed consent. Demographic, clinical and biochemical data were used for the GLYCEMIZER® tool to calculate the individual HbA1c-goals. A statistical analysis was conducted in order to compare the calculated HbA1c-goals with targeted and achieved HbA1c-levels. Results — A total of 184 patients (mean age: 69y) were enrolled by 6 participating general practitioners from the Werdenberg-Sarganserland region in eastern Switzerland. Four patients did not meet the inclusion criteria. The overall median calculated HbA1c-goal did not differ from the targeted and achieved levels (7.1% vs. 7.0% vs. 7.1%, p=0.894). There was a significant difference between achieved and calculated HbA1c-levels in patients aged <50 (n=13, median 7.2% vs. 6.5%, p=0.014), goals not achieved) and patients aged >71 (n=85, median 6.9% vs. 7.5%, p=0.005), lower levels achieved in relation to calculated HbA1c-goals). Both in patients treated with insulin (n=44) and in patients without insulin (n=136) the achieved HbA1c-levels met the calculated goals (no insulin: 6.9% vs. 7.0%, ns; with insulin: 7.8% vs. 7.7%, ns). In regard to CKD-stages 3 and 4 the achieved HbA1c-levels were significantly lower than calculated (n= 41, median 6.9% vs. 7.6%, p=0.001). Conclusion — Calculating HbA1c-goals using the GLYCEMIZER tool is more accurate than relying on gut feeling alone, and is specifically useful in the treatment of patients with T2DM of less than 50, as well as more than 70 years of age. Furthermore, it is helpful to meet individual HbA1c-goals in patients with CKD-stages 3+.


2014 ◽  
Author(s):  
Tahir Mahmood ◽  
Muhammad Muzaffar Ali Khan Khattak ◽  
Nor Azwani Mohd Shukri ◽  
Siti Amirah Azam ◽  
Nurul Aimi Shams

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