Medicinal – Page 140

Identification and biological characterization of pathogen causing sooty blotch of Ardisia crispa (Thunb.) A.DC.

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Researchers identified two fungi causing sooty blotch, a serious disease affecting Ardisia crispa, an important Chinese medicinal plant. The disease creates black mold on leaves that reduces the plant’s ability to produce energy through photosynthesis. The study found that extracts from specific medicinal plants can effectively inhibit the growth of these harmful fungi, offering an environmentally friendly alternative to chemical pesticides for protecting these valuable medicinal plants.

Genetic regulation of l-tryptophan metabolism in Psilocybe mexicana supports psilocybin biosynthesis

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Researchers studied how magic mushrooms (Psilocybe mexicana) control their chemical processes to make psilocybin. They found that when mushrooms start producing psilocybin, they turn on genes that make more of an amino acid called tryptophan, while turning off genes that would break it down. They also discovered and studied an enzyme that helps control tryptophan use. This understanding could help grow these mushrooms with more consistent psilocybin levels for legitimate medical research into treating depression.

Past, present and future of antifungals: Advancements in mechanisms of action and resistance

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Fungal infections are a growing global health problem, particularly for people with weakened immune systems, causing millions of deaths annually. Current antifungal medications are limited and increasingly ineffective due to drug-resistant fungi. This special issue explores new treatment strategies including novel drugs, combination therapies, and innovative approaches like nanoparticles and antimicrobial peptides to combat these serious infections.

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.

Saksenaea oblongispora Rhinosinusitis in Advanced HIV: A Rare and Lethal Mucormycosis

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A 32-year-old man with advanced HIV developed a severe fungal infection of his sinuses caused by a rare fungus called Saksenaea oblongispora, which typically doesn’t affect people with HIV. The patient presented with severe facial swelling that rapidly worsened, and despite doctors identifying the fungus through biopsies and lab tests, he did not receive antifungal treatment or surgery before his condition became critical. This is the first case of this particular fungal infection documented in sub-Saharan Africa and in HIV patients, highlighting how dangerous this rare infection can be and how challenging it is to diagnose quickly enough to save lives.

Biological characterization and in vitro fungicide screening of a new pathogen of basal stem rot of Schisandra chinensis in Jilin Province, China

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Researchers discovered that a fungus called Ilyonectria robusta is causing a serious disease in Schisandra chinensis plants grown in northern China. This plant is used to make traditional Chinese medicine. The disease causes the base of the plant stems to rot and die. Scientists tested seven different fungicides (medicines that kill fungi) and found that fluazinam was the most effective at stopping this fungus from growing.

Pathogenic mucorales: Deciphering their cell wall polysaccharidome and immunostimulatory potential

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Mucormycosis is a serious fungal infection that primarily affects people with weak immune systems and carries high mortality rates. Researchers studied three common mucormycosis-causing fungi to understand how their outer cell layers interact with the human immune system. They found that all three fungi trigger strong inflammatory responses, which may explain why the disease is so damaging. This research helps us better understand how these infections work and could lead to improved treatments or vaccines.

Low Antigen Titre Disseminated Cryptococcosis in Immunocompromised Hosts: Two Challenging Case Reports

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Two patients with weakened immune systems developed serious fungal blood infections from Cryptococcus despite having unusually low levels of fungal markers in their blood. One was a kidney transplant patient and the other had HIV. Neither showed signs of brain infection, which is unusual for this disease. Both were successfully treated with aggressive antifungal medications once blood cultures confirmed the disseminated infection.

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.

Maintaining the Quality and Nutritional Integrity of Chilled Cordyceps sinensis: Comparative Effects and Mechanisms of Modified Atmosphere Packaging and UV-Based Interventions

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Cordyceps sinensis is a highly valued medicinal mushroom that loses its nutritional benefits quickly when stored fresh. This research tested different storage methods to keep it fresh longer, finding that packaging in a special gas mixture (80% nitrogen and 20% carbon dioxide) worked best for preserving its valuable compounds during 12 days of cold storage. The study also found that using UV light treatment could reduce browning, while vacuum sealing best prevented the mushroom from drying out.

Research Topic: Medicinal