Understanding the TSTBio iProtin Lp(a) Assay Cartridge Kit for Home Use: A Guide
Cardiovascular diseases continue to be at the forefront as the leading cause of death in the world. The early identification of underlying risk factors is essential in the management & treatment of the condition. One such risk factor that has gained significant attention in recent times is the level of lipoprotein(a), abbreviated as Lp(a).
It is now recognised by medical scientists as an important genetic risk factor in the causation of cardiovascular diseases. However, the majority of the population has not undergone tests to determine the level of Lp(a). In fact, guidelines from various cardiology associations suggest that it is very essential that individuals undergo tests at least once in their lifetime.
One such reason is the lack of accessibility to the test facilities that were required in the past, as the test is now becoming relatively simpler with the availability of devices such as the TSTBio iprotin Lp(a) Assay Cartridge kit that can be used at home.
The guide will cover information on "what is Lp(a)," "why is it very important," and "how these modern point of care systems are really changing cardiovascular screening."
What Is Lipoprotein (a) and Why Is It Very Important?
Lipoprotein (a) is also known as Lipoprotein a & is abbreviated as Lp(a). In terms of its composition or structure, it is very similar to LDL cholesterol except for the fact that it contains a protein known as Apolipoprotein(a).
The unique properties of Lp(a) can be attributed to the extra protein.
Researchers have identified that Lp(a) is an atherogenic particle; that is, it has the capability to cause atherosclerosis. Atherosclerosis is the buildup of fat in the arteries, which can cause heart attacks and strokes.
Unlike other cardiovascular risk factors, the level of Lp(a) is genetically determined.
Key characteristics of Lp(a):
Genetically Inherited Marker
It is generally accepted that the level of Lp(a) that an individual has is inherited from the parents.
Independent Cardiovascular Risk Factor
It is also accepted that Lp(a) is an independent risk factor because it can be increased even when the level of cholesterol is normal.
Promotes Arterial Plaque Formation
It is also accepted that Lp(a) promotes the formation of arterial plaques.
Promotes Various Heart Diseases
Research has also indicated that Lp(a) promotes various heart diseases, including coronary artery disease, aortic valve stenosis, and stroke.
Not Always Detected by Standard Tests
It is also worth mentioning that standard tests that measure the level of cholesterol do not include Lp(a).
Given the above characteristics, it is recommended that Lp(a) tests be carried out in order to detect the level of cardiovascular risk that individuals face.
Why Do Experts Recommend Lp(a) Testing at Least Once in Life?
It is now recommended in international cardiovascular guidelines that screening for Lp(a) be carried out over a person’s lifetime. This is based on the increasing evidence of the association between high levels and heart disease.
C. Bachmeier, G. Ward, A. Kassianos, and K. Kostner, from the University of Queensland School of Medicine and the Royal Brisbane and Women’s Hospital, and other research associates have emphasised the value of Lp(a) measurement in the following way:
Measurement of Lp(a) is important because it is a genetic cardiovascular risk factor. It does not vary greatly throughout a person’s life.
Reasons for recommending Lp(a) testing by doctors
Early detection of genetic predisposition
Some people inherit Lp(a) at higher levels from birth.
Enhanced prediction of cardiovascular risk
Other risk factors may not be enough on their own.
Enhanced family risk evaluation
If a member of a family has Lp(a) at higher levels, others in the family can be tested.
Personalised preventive measures
Doctors can adjust preventive measures accordingly.
Enhanced evaluation of cardiovascular risk
Particularly in cases where heart disease has no apparent cause.
Though these benefits exist, many patients never receive Lp(a) testing because few facilities offer this service.
What Is Point-of-Care Testing for Lipoprotein (a)?
Point of care testing (POCT) is defined as medical tests conducted near the patient, as opposed to a centralised laboratory.
Tests conducted through point of care technology are usually quicker and easier to perform.
For Lp(a), point of care technology enables medical staff to perform cardiovascular biomarker tests in minutes instead of days.
General characteristics of point of care technology
- Small device technology
- Less preparation of samples
- Quick results generation
- Less complex workflow
- Tests conducted outside the lab
POCT technology has been studied to assess its similarity to laboratory technology.
A study assessed the similarity of a point of care Lp(a) technology with two laboratory technologies:
• Randox Assay (Abbott Alinity c platform)
• Roche Assay (Cobas c502 platform)
Residual patient serum samples were used for the analysis.
How Accurate Are Modern POCT Lp(a) Tests?
Encouraging results have been obtained from the clinical validation studies.
During the study carried out by the aforementioned medical teams in Australia, the POCT system showed a good correlation with the laboratory assays.
Key findings from the study:
- Strong correlation with Randox laboratory assay
- Strong correlation with Roche laboratory assay
- Reliable measurement range across the samples
- Good agreement with established testing systems
Statistical comparison was performed using the Passing Bablok method, which is widely used in the comparison of clinical chemistry assays.
Results included:
iProtin = 1.15 × Randox + 7.28 nmol/L (R² = 0.906)
iProtin = 1.02 × Roche + 17.54 nmol/L (R² = 0.912)
Correlation between Randox and Roche assays was also high:
Roche = 1.15 × Randox − 13.33 nmol/L (R² = 0.973)
These findings suggest that well-designed point-of-care systems can deliver results comparable to laboratory measurements.
What Is the TSTBio iProtin Lp(a) Assay Cartridge Kit for Home Use?
The TSTBio iprotin Lp(a) Assay Cartridge kit for Home Use is part of a larger overall point-of-care testing solution intended for the measurement of cardiovascular biomarkers.
The solution includes a portable reader device and a disposable assay cartridge.
The technology is intended for the simplification of biomarker testing through a reduction in laboratory requirements and a quicker overall measurement approach.
The key characteristics of this solution
- Involves a finger prick blood test
- Requires only 5 microliters of blood
- No centrifugation required
- Results obtained within a three-minute timeframe
- Compact handheld detection device
The solution is intended for use as a handheld in vitro diagnostic (IVD) detector in healthcare environments such as clinics or long-term care facilities, as well as for potential home-based medical monitoring with professional guidance.
How Does the iProtin Testing Process Work?
Understanding the workflow can actually help shed some light on the popularity of point-of-care testing.
The iProtin platform is based on cartridge-based testing technology.
Each cartridge has its own set of reagents that can detect certain biomarkers.
Typical workflow
Finger prick blood sampling
A blood sample is obtained using a lancet.
Sample application
5 microliters of whole blood is applied.
Cartridge insertion
The cartridge is inserted into the reader.
Automated analysis
Analysis is carried out internally.
Result generation
Quantitative results are generated in three minutes.
This is a simplified workflow and bypasses many steps that were required in the traditional method.
Which Biomarkers Can the iProtin System Measure?
In today’s world, cardiovascular risk evaluation can basically involve many different biomarkers.
The iProtin platform is designed to assist in the evaluation of many different markers for chronic diseases.Examples of supported biomarkers
Lp(a)A genetic cardiovascular risk marker associated with atherosclerosis.
ApoB (Apolipoprotein B)
Reflects the total number of LDL particles and can provide more in-depth analysis of cholesterol risk.
CRP / hsCRPMeasures systemic inflammation and cardiovascular disease risk.
Each of these biomarkers can provide unique and valuable insight into cardiovascular health.What Are Normal Lp(a) Levels?
When interpreting Lp(a) test results, it is always recommended that the individual consult with a medical professional. However, there is general information that is normally used.
General ranges that have been reported in clinical materials include:
- Normal level: below 30 mg/dL
- Elevated level: above 30 mg/dL
When the level is above 30 mg/dL, it is an indication that the individual is at risk of heart problems, especially if they have other risk factors such as:
- High levels of LDL
- Smokers
- Diabetes
- Family history of heart problems
It is important to note that since Lp(a) is genetically determined, lifestyle changes do not have any significant effects on the level.
However, when the level is found to be high, it is an opportunity for the physician to take preventive measures.Why Is Point-of-Care Testing Important for Remote Communities?
Variability in Access to Laboratory Testing Across the WorldIn remote communities around the world, individuals may experience a range of challenges in accessing laboratory testing.
These challenges include:- Long distances that must be traveled to access laboratory services
- Limited laboratory services in remote areas
- Delays in results being made available to healthcare providers
- Reduced access to healthcare services
Researchers who have worked on POCT systems have noted their potential benefits in improving accessibility.
Benefits for Remote Healthcare Settings- Faster diagnosis and screening
- Reduced need to travel for healthcare services
- Early risk detection
- Improved management of chronic diseases
- Faster clinical decisions
What Are the Advantages of Finger-Prick Blood Testing?
Traditional blood tests usually require venous blood collection using a needle.
Finger-prick sampling offers a simpler alternative.Advantages of finger-prick testing
Less invasive procedureRequires only a tiny blood drop.
Reduced patient discomfortEspecially helpful for people with needle anxiety.
Faster testing workflowNo venous collection setup needed.
Minimal sample preparationOften no centrifugation is required.
Suitable for frequent monitoringUseful for chronic disease management.
These characteristics have made finger-prick testing common in areas such as diabetes monitoring and increasingly in cardiovascular screening.What Are the Limitations of Home or Point-of-Care Testing?
While POCT systems are convenient, it is also important to know that these systems are limited.What are the limitations of home or point of care testing?
Clinical Interpretation of Results
The results of home or point of care testing need to be interpreted by medical professionals.
Variability of Testing Methods
The results of different home or point of care testing systems may vary by a few percentages.
Quality Control ConsiderationsProper handling of home or point of care testing systems is also important.
Follow-up Testing Often NecessaryAbnormal results from home or point of care testing systems need to be confirmed by laboratory tests.
How Does Lp(a) Fit Into Overall Cardiovascular Risk Assessment?
There are several risk factors that cardiologists use to assess risk for cardiovascular diseases.Other key risk factors include:
-
LDL Cholesterol
- HDL Cholesterol
-
Triglycerides
- ApoB
- Inflammatory markers such as CRP
For instance:
-
ApoB is associated with the total number of atherogenic lipoprotein particles.
- CRP is associated with systemic inflammation.
-
Lp(a) is associated with inherited risk for cardiovascular diseases.
Together, these markers provide a more complete understanding of cardiovascular health.
Frequently Asked Questions (FAQs)
What is the purpose of the TSTBio iprotin Lp(a) Assay Cartridge Kit for home use?
The TSTBio iprotin Lp(a) Assay Cartridge Kit for home use is part of a point-of-care testing system intended for the measurement of lipoprotein(a) using a small sample of blood. It actually facilitates the rapid cardiovascular risk assessment in healthcare settings.
How long does the test take?
The analysis time required for the test is generally three minutes after the sample has been inserted into the reader device.
How much blood is required for the test?
The test generally requires a sample of 5 microliters of blood, which is basically obtained through a finger prick method.
Is Lp(a) testing recommended for everyone?
Cardiology guidelines recommend at least one Lp(a) test in a person's lifetime.
Final Lines:
Significant changes in the technology used in the diagnosis of cardiovascular risk factors have been reported in recent times. Lipoprotein(a) is basically identified as a significant genetic marker that is related to atherosclerotic cardiovascular diseases. However, the rates at which tests are being carried out are low due to the challenges that exist.
The TSTBio iprotin Lp(a) Assay Cartridge Kit is identified as an emerging solution that is being developed to improve the accessibility of cardiovascular tests that can be carried out at home.
While the use of lab diagnostics is considered the gold standard in the overall assessment & evaluation of the patient, the use of POC systems has shown the potential & opportunities provided by modern healthcare technology in extending the use of diagnostic tools outside the lab setting. Organisations involved in the innovation and development of diagnostic tools, such as POC Diagnostics, are helping in the development of tools that can assist in the efficient evaluation & assessment of cardiovascular risk in the healthcare industry.