Medicinal – Page 106

Research Topic: Medicinal

Clinical spectrum, immune status, and prognostic factors of cryptococcosis: insights from a large, multi-center, ambispective cohort study in southeastern China

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This study examined cryptococcosis, a serious fungal infection, in 396 non-HIV patients across hospitals in southeastern China. The researchers found that patients’ immune status, whether the infection spread to the brain, and blood inflammation markers were key predictors of survival. Most patients treated with azole medications (a common antifungal) improved or recovered, though those with brain involvement or severe immune deficiency had worse outcomes. The findings help doctors identify which patients need more intensive treatment.

Identification of Challenging Dermatophyte Species Using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

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This study shows that MALDI-TOF mass spectrometry is an effective method for quickly identifying skin fungal infections caused by dermatophytes. By combining commercial reference databases with a custom library created from local isolates, researchers achieved 90.7% accurate identification compared to only 16.1% using the commercial database alone. This improved method could help doctors diagnose and treat fungal skin infections more quickly and accurately in clinical laboratories.

Improving the production of micafungin precursor FR901379 in Coleophoma empetri using heavy-ion irradiation and its mechanism analysis

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Scientists successfully improved the production of a key ingredient for the antifungal drug micafungin by using heavy-ion radiation to create improved strains of a fungus called Coleophoma empetri. The best mutant strain produced over 250% more of the desired compound than the original strain. By analyzing the genetic changes in these improved strains, researchers identified specific genes related to fungal structure and metabolism that contribute to higher production, providing insights for future improvements to the manufacturing process.

A rare case of invasive necrotizing myositis of the thigh caused by Basidiobolus ranarum: a multi-pronged approach to successfully managing a near-fatal polybacterial mycotic infection

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A 46-year-old man developed a severe fungal infection caused by a rare fungus called Basidiobolus ranarum in his thigh, which started from an insect bite two years earlier. The infection caused tissue death and was complicated by bacterial superinfection, requiring aggressive treatment with multiple antibiotics and antifungal medications along with several surgeries. Doctors used a combination approach including voriconazole, potassium iodide, and itraconazole to finally control the infection, though amputation was necessary due to the extent of tissue damage. The case highlights the importance of early medical care and demonstrates that rare fungal infections can be life-threatening even in otherwise healthy people.

Optimization of triterpenoids biosynthesis in Athelia termitophila as a source of natural products

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Researchers optimized growing conditions for a fungus found in termite nests to dramatically increase production of triterpenoids, naturally-occurring compounds with potent health benefits. Using statistical methods to test different nutrients and conditions, they nearly doubled triterpenoid production and mycelial biomass. These findings could make triterpenoid-based medicines and supplements more affordable and widely available by improving natural production methods.

Fusarium pseudonygamai Promotes Blastospore Transformation in Ophiocordyceps sinensis: Insights into Microbial Interaction and Key Mechanisms

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This study reveals how a beneficial microorganism (Fusarium pseudonygamai) helps the medicinal fungus Chinese cordyceps transform and grow properly. The microorganism produces a natural sugar-like substance called mannitol that signals the fungus to change from spore form into thread-like hyphae. By understanding this microbial communication, scientists can potentially improve the artificial production of Chinese cordyceps, reducing pressure on wild populations.

Clinical and Genomic Insights into Antifungal Resistance in Aspergillus Isolates from Thailand

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Researchers in Thailand found that certain fungal infections caused by Aspergillus fumigatus are becoming resistant to common antifungal medications like voriconazole. They identified a specific genetic mutation called TR34/L98H in one patient sample that makes the fungus resistant to azole drugs used to treat these serious infections. By analyzing the genetic makeup of these resistant fungi, scientists discovered additional changes beyond the known resistance gene, suggesting these organisms may adapt in multiple ways to survive treatment. This is the first time this particular resistance mutation has been detected in a clinical patient sample in Thailand, indicating that antifungal resistance in Aspergillus is spreading and requires closer monitoring and testing.

Approaches to Invasive Fungal Diseases in Paediatric Cancer Centres: An Analysis of Current Practices and Challenges in Germany, Austria and Switzerland

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This research examined how pediatric cancer hospitals in Germany, Austria, and Switzerland manage fungal infections, which are a serious risk for children undergoing cancer treatment. The survey found that while most hospitals have infection specialists and antifungal prevention strategies, there are significant differences in how they diagnose and treat these infections. The study identified key challenges like drug interactions and delays in testing, and suggests that better networks between cancer and infection specialists could improve patient care.

Erythema Nodosum Associated with Kerion: A Case Series and Narrative Review of the Literature

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This paper describes a rare condition where patients develop painful red bumps on the shins (erythema nodosum) as a reaction to a severe scalp fungal infection (kerion) caused by Trichophyton mentagrophytes. The authors reviewed 23 similar cases and found that this reaction usually happens during antifungal treatment and resolves within about a week. Treatment with antifungal medications like griseofulvin, sometimes combined with anti-inflammatory steroids, is effective, though scarring of the scalp may remain.

Identification of antagonistic activity against Fusarium, and liquid fermentation of biocontrol Bacillus isolated from wolfberry (Lycium barbarum) rhizosphere soil

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Researchers isolated a beneficial bacterium called Bacillus subtilis from wolfberry soil that fights a fungal disease called Fusarium root rot. Through careful optimization of growing conditions, they increased the bacteria’s effectiveness at killing the harmful fungus by about 15%. When added to wolfberry seedlings, this bacterium not only prevented fungal disease but also boosted plant growth significantly.