molecular diagnostics – Page 4

The first described case of Fomitiporella micropora infection in humans: A heart transplant recipient diagnosed by fungal PCR

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A patient who received a heart transplant developed a small, slowly-growing lump on his shin over many years. After surgical removal, genetic testing revealed it was caused by a rare fungus never before identified in humans. The surgical removal likely cured the infection, and the case shows how important advanced genetic testing methods are for identifying unusual infections in transplant patients.

A new molecular seed assay to predict Ustilago nuda field infection levels

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Scientists developed a new DNA-based test to detect a fungus that infects barley seeds and causes crop disease. This test is faster and more accurate than the current method of manually inspecting seeds under a microscope. By using this new test, farmers can better decide which seeds need treatment, reducing unnecessary use of pesticides while still preventing disease outbreaks in their fields.

The diagnosis of mucormycosis by PCR in patients at risk: a systematic review and meta-analysis

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Mucormycosis is a dangerous fungal infection that kills many patients. Traditional tests like fungal culture are slow and often miss infections. This comprehensive study of 30 research papers shows that PCR testing is very effective at detecting this fungus, with different specimen types having different success rates. Blood tests were easiest to perform and worked well for screening high-risk patients, while fluid from the lungs was the most accurate.

Dual-Emission FRET-PCR Outperforms SYBR Green and EvaGreen for Accurate Discrimination of Primary Canine Dermatophytes: Microsporum canis, Nannizzia gypsea, and Trichophyton mentagrophytes

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This research developed a new rapid test called FRET-PCR that can identify three common fungal infections in dogs within 2.5 hours, compared to 2-4 weeks for traditional culture methods. The test works by detecting specific genetic markers in fungal DNA and measuring temperature changes that differ for each fungal species. When compared to two other molecular tests (SYBR Green and EvaGreen), the FRET-PCR method was more accurate and sensitive, even able to detect a single copy of the target gene. This faster, more accurate identification will help veterinarians choose the right treatment more quickly and prevent spread of fungal infections.

On site discrimination between two closely related commercial strains of oyster mushroom using a loop-mediated isothermal amplification (LAMP) test

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Scientists developed a quick test to identify two specific types of oyster mushrooms (SPOPPO and ALLERPO) on farms or spawn production facilities. These sporeless mushroom varieties were created to protect workers from respiratory problems caused by mushroom spores. The new LAMP test can identify which strain is being grown in just 30 minutes using simple sample preparation, helping protect the breeding companies’ intellectual property rights from illegal copying.

Design of a melting curve analysis (MCA) based on multiplex real-time PCR for detection of Aspergillus terreus and Aspergillus fumigatus in cereals and oilseeds samples

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This study developed a fast molecular test to detect harmful fungi (Aspergillus species) in grains and seeds. Traditional fungal identification takes 3-5 days, but the new PCR-based method can produce results in hours. Testing 140 grain and seed samples, the new method successfully identified two dangerous Aspergillus species that produce toxic compounds harmful to human health. This advancement helps ensure food safety by enabling quicker detection of contamination in food production facilities.

ESCMID-EFISG Survey on Diagnostic and Therapeutic Capacity for Invasive Fungal Infections in Belgium, the Netherlands, and Luxembourg: A Focus on High Azole Resistance

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This survey examined how well hospitals in Belgium, the Netherlands, and Luxembourg can diagnose and treat serious fungal infections, especially in patients whose immune systems are weakened. The researchers found that while most hospitals have good access to testing and antifungal medications, some important tests are still missing, and many hospitals send samples to other facilities for testing, which can delay treatment. Since this region has unusually high rates of fungal infections that resist common antifungal drugs, improving access to advanced diagnostic tests is crucial for patient survival.

Dual-Emission FRET-PCR Outperforms SYBR Green and EvaGreen for Accurate Discrimination of Primary Canine Dermatophytes: Microsporum canis, Nannizzia gypsea, and Trichophyton mentagrophytes

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Dogs often get fungal skin infections caused by three main types of fungi. Doctors have traditionally grown these fungi in culture, which takes 2-4 weeks. Scientists have now developed a faster genetic test called FRET-PCR that can identify which fungus is causing the infection in just 2.5 hours. This new test is more accurate and reliable than older genetic tests, helping veterinarians treat infections quickly and prevent them from spreading.

Magnusiomyces capitatus bloodstream infection in a patient with acute monocytic leukemia: A rare case report

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A 26-year-old patient with acute leukemia developed a rare fungal bloodstream infection caused by Magnusiomyces capitatus during cancer treatment. The infection was identified through advanced laboratory techniques including DNA sequencing and mass spectrometry. The patient was successfully treated with amphotericin B, highlighting the importance of rapid and accurate fungal identification for better patient outcomes.

Editorial: Dermatopathology and Associated Laboratory Investigations in the Study of Skin Disease

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This special journal issue brings together several studies on how doctors diagnose skin diseases using laboratory tests. The papers cover different methods including examining fungal infections under a microscope, using new staining techniques, and applying molecular tests to identify skin cancers and autoimmune conditions. Together, these studies show how combining pathology examination with laboratory techniques is essential for accurately diagnosing and treating various skin disorders.

Research Topic: molecular diagnostics