1. Why 25-OH Vitamin D Matters

The main physiological role of vitamin D and its metabolites is to maintain normal blood calcium and phosphorus levels, to ensure bone health and normal neuromuscular function.

25-Hydroxy Vitamin D is the main storage form of vitamin D in the human body, and the detection of serum 25-Hydroxy VD level has been recognized as the most reasonable indicator to reflect the status of vitamin D.

Clinically, 25-hydroxyvitamin D is the preferred indicator because:

● It reflects combined effects of sunlight, diet, and supplements

● It is stable in serum and plasma

● It reliably shows long-term vitamin D reserves

Inadequate vitamin D can contribute to:

● Reduced bone density and greater fracture risk

● Muscle weakness and higher fall likelihood

● Impaired immune function

● Seasonal fatigue or malaise

2.  Reference Value for Vitamin D

Levels of 50 nmol/L (20 ng/mL) or more are sufficient for most people.

Optimal serum concentrations of 25(OH)D for bone and general health have not been established because they are likely to vary by stage of life, by race and ethnicity, and with each physiological measure used.

In addition, although 25(OH)D levels rise in response to increased vitamin D intake, the relationship is nonlinear. The amount of increase varies, for example, by baseline serum levels and duration of supplementation.

Understanding these dynamics highlights the importance of accurate, reliable measurement of 25(OH)D, precisely what our Poclight 25-OH VD assay is designed to provide.

3.  Poclight 25-OH VD Assay Key Features

1. LOD: 3ng/mL
2. Linearity: 3-70ng/mL, in this linear range, the linear correlation coefficient "r" is not less than 0.9900
3. Repeatability: CV<5% 
4. Exceptional Speed: Reduces the detection time from 3 hours to just 10 minutes.
5. Compatible with Poclight C5000 Benchtop CLIA Analyzer

Operation process

If you’d like to have our products in your lab or distribution lineup, feel free to contact us to discuss pricing, partnership, and next steps.

1.  Facts & Figures

World Diabetes Day, held every November 14, reminds us of the growing impact of diabetes worldwide.

According to the International Diabetes Federation (IDF), more than 500 million adults are living with diabetes, and the number is expected to reach 853 million by 2050.

However, through prevention, early diagnosis, and regular HbA1c monitoring, we can greatly reduce the impact of diabetes and its complications.

2.  HbA1c as a Diagnostic and Monitoring Tool

HbA1c (Glycated Hemoglobin) is a blood test that reflects your average blood sugar levels over the past 2 to 3 months. It measures the percentage of red blood cells with glucose attached to them, providing a long-term view of blood glucose control, unlike daily tests that only show short-term changes. Because red blood cells live for about 120 days, HbA1c levels give an accurate picture of how well blood sugar has been managed over time.

Diagnostic use: The American Diabetes Association (ADA) and the World Health Organization (WHO) recognize HbA1c as a reliable diagnostic marker for diabetes, with a cutoff value of 6.5% or higher.

Monitoring role: For people with diabetes, regular HbA1c testing helps evaluate how effectively their treatment plan is managing blood sugar levels over the long term.

Recommended HbA1c Testing Frequency

Note: frequency depends on individual status, please follow your doctor’s advice

Common HbA1c Detection Methods

POCT systems like Poclight’s C5000 dry CLIA platform provide lab-quality results with fast turnaround and easier operation at the point of care.

3.  Poclight’s Upgraded HbA1c Solution

To support better glucose monitoring, Poclight has recently launched a new spectrometer module for the C5000 Analyzer. The module measures hemoglobin levels in a sample using a photometric method and then applies a calculation formula to determine the average percentage of glycated hemoglobin (HbA1c).

For operation guide, please watch the video below:

Poclight Hemoglobin A1c (HbA1c) Test Kit (Homogeneous Chemiluminescence Immunoassay)

Key Features

○ Fast: Results in 5 minutes

○ Accurate and Sensitive: High correlation with reference method, NGSP certified; 3.5~20% measuring range, cut-off value 4-6%

○ Small Sample: Only 5 μL whole blood required

○ Stable: storage at 2–30°C for 18 months

○ Applicable with the C5000 POC CLIA Analyzer: Maintenance-Free

At Poclight, we remain committed to making precision diagnostics more accessible and reliable for point-of-care settings.

Contact us to learn about local distribution and pricing options for Poclight solutions.

1.  What is IgE?

In our blood, there exists a special class of protein known as immunoglobulin, which is an important component of the immune system. Among them, IgE (immunoglobulin E), despite its extremely low concentration, accounting for only 0.002% of the total immunoglobulin, it acts as a key "messenger" in triggering allergic reactions. This antibody produced by B lymphocytes primarily protects the human body in two ways: one is to resist parasitic infections, and the other is to trigger an immune response when encountering allergens.

When allergens (such as pollen, dust mites or certain foods) enter the human body, the immune system recognizes them as "foreign invaders" and prompts B cells to produce IgE antibodies against the allergen. These IgE will specifically bind to the surface of mast cells and basophils, causing the body to enter a "sensitized state". When exposed to the same allergen again, IgE immediately activates the "alarm system", prompting cells to release inflammatory mediators such as histamine, triggering allergic symptoms like sneezing, itchy skin, and breathing difficulties - this is the fundamental principle of what we commonly refer to as an allergic reaction.

2.  IgE Testing: Purpose and Applications

IgE detection has become a critical tool in the diagnosis of allergic diseases.

Clinical significance: Studies show that approximately 30% of patients with allergic diseases exhibit significantly elevated levels of total serum IgE. Moreover, specific IgE testing demonstrates over 85% accuracy in identifying the types of allergens involved. This test is mainly applicable to three types of people:

✓ Patients with recurrent skin itching, urticaria, allergic rhinitis and other symptoms.

✓ Individuals with a history of asthma and unknown cause.

✓ High-risk groups with a family history of allergic diseases.

Note: IgE test results must be interpreted in conjunction with clinical symptoms. For instance, in patients with hay fever, allergen-specific IgE levels may rise 2-4 weeks before the pollen season begins. In cases of food allergy, relevant IgE antibodies can trigger an immune response within 1-2 hours after ingestion of the allergenic food. Through dynamic monitoring of IgE levels, physicians can not only confirm a diagnosis but also develop personalized desensitization treatment plans, which have been shown to reduce the risk of acute asthma attacks by 40%-60%.

3.  From Testing to Management: Comprehensive Prevention and Control of Allergic Diseases

IgE testing is only the first step in the management of allergic diseases. Clinical practice has shown that personalized prevention and control plans, developed based on test results, can improve patients' quality of life scores by 35%~50%. For patients allergic to dust mites, in addition to the use of antihistamines, regular environmental control measures, such as using mite-proof bedding and air purifiers, can reduce the frequency of symptom episodes by 40%. Patients with food allergies, on the other hand, need to strictly avoid allergenic foods and carry an epinephrine auto-injector at all times in case of accidental exposure.

With advances in precision medicine, IgE testing technology is also continuously evolving. The new generation of testing methods can not only quantitatively analyze antibody levels but also predict the severity of allergic reactions by detecting IgE subtypes.

In an era of ongoing iteration in in vitro diagnostic technologies, Poclight IgE test kit, with its innovative technology, exceptional performance, user-friendly operation, and reliable quality, offers a new option for the precise diagnosis of allergic diseases. In the future, by integrating genetic testing and artificial intelligence algorithms, we hope to achieve early warning and precise intervention for allergic diseases, helping more people break free from the burden of allergies.

Advantages of Poclight IgE Test Kit: Innovative CRET Technology Enables Precision "Signal-Switch" Detection

Technology Principle:

✓ Utilizes a homogeneous chemiluminescence approach.

✓ Integrates antigen-antibody reactions with chemiluminescent signals.

Workflow:

● The target substance binds with an acridinium ester-labeled DNA antibody to form an immunocomplex.

● Graphene oxide quenches the remaining unbound acridinium ester-labeled DNA fragments.

● This homogeneous process eliminates the need for separation and washing steps.

● A chemiluminescent reaction is initiated by adding an excitation solution.

Performance Specifications:

✓ High Sensitivity: Detection sensitivity of 0.1 IU/mL.

✓ Wide Linear Range: 0.1–2500 IU/mL, fully meeting clinical testing requirements.

✓ Excellent Precision: Intra-assay CV ≤10% and inter-assay CV ≤15%, ensuring stable and reliable results.

✓ Rapid detection: in just 5 minutes, minimal sample volume of 50 µL, simple operation, low cost, high-quality CLIA methodology, innovative CRET patented technology, precise results, and a wide linear detection range.

✓ Ease of Use: Minimal training required

Key Advantage (vs. Traditional ELISA):

●  Exceptional Speed: Reduces the detection time from 3 hours to just 5 minutes.

●  Operational Simplicity: The homogeneous assay format removes the need for cumbersome washing and separation steps.

Compatible with Poclight C5000 POC CLIA Analyzer

To learn more about cooperation regarding Poclight's 5-generation CLIA solutions, please contact us.

October 29 marks World Stroke Day, a reminder to pay attention to brain health and take action to prevent strokes, one of the leading causes of death and disability worldwide.

Strokes can occur suddenly, and certain physiological changes may precede clinical symptoms. Early detection is therefore essential for timely risk assessment and intervention.

Many people associate stroke with high blood pressure, high cholesterol, and atherosclerosis. While these are important risk factors, there’s a crucial, often overlooked element — abnormal platelet activation.

Normal platelets help stop bleeding, but when excessively activated, they become overly sticky and prone to clumping. Like tiny “time bombs,” they can form blood clots that block cerebral blood vessels, leading to ischemic stroke.

Traditional blood tests may not fully reflect platelet activation; direct monitoring of platelet functional state provides more comprehensive information.

2.  The Gold Standard: Platelet Activation Markers

Early detection of platelet activation is key to predicting thrombotic events. Important markers include:

● CD62P (P-Selectin): Recognized as the gold standard for platelet activation. Its surface expression signals the initiation of clot formation.

● PAC-1: A widely accepted marker for early platelet activation.

● CD42a, CD42b, CD41, CD61: Maintain platelet structure and function, mediating aggregation, adhesion, and secretion.

These markers allow clinicians to precisely assess platelet activation and intervene before stroke occurs.

Testing Significance

1)  Personalized Antiplatelet Therapy

Provides precise guidance for the use of antiplatelet drugs such as aspirin and clopidogrel, enabling individualized treatment.

2)  Stroke Risk Assessment

Detects hidden hypercoagulable states in time, offering early warning for cardiovascular and cerebrovascular events.

3)  Medication Guidance & Efficacy Monitoring

Evaluates whether antiplatelet therapy is effective and identifies potential “drug resistance,” allowing timely adjustment of treatment plans.

3.  CRET Platelet Activation Measurement

Poclight Platelet Activation Function Analyzer: Real-Time, Dynamic, and Precise

Poclight CRET Analyzer and reagents offers a powerful tool for platelet monitoring, helping clinicians make informed decisions regarding transfusion strategies, bleeding/thrombosis risk prediction, and treatment optimization.

With CRET Measurement, clinicians can detect the “invisible” culprits of stroke early, enabling timely intervention and improved patient outcomes.

For detailed information and partnership options, please contact us.