Research Topic: autophagy

Antioxidant Potential-Rich Betel Leaves (Piper betle L.) Exert Depigmenting Action by Triggering Autophagy and Downregulating MITF/Tyrosinase In Vitro and In Vivo

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This research shows that betel leaves, a traditional herb used in Asian cultures, can lighten skin pigmentation through multiple mechanisms. The extract works by reducing tyrosinase enzyme activity, activating cellular cleanup processes called autophagy, and boosting the body’s natural antioxidant defenses. In both laboratory cells and living mice exposed to UV radiation, betel leaves extract effectively reduced unwanted skin darkening, suggesting it could be developed into safe natural skin-whitening products.

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Roles of the Sec2p Gene in the Growth and Pathogenicity Regulation of Aspergillus fumigatus

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Scientists studied a gene called Sec2p in a harmful fungus that causes serious lung infections in people with weak immune systems. When they removed this gene, the fungus grew more slowly and was much less dangerous to infected mice, with 67% of mice surviving compared to only 22% with normal fungus. The gene controls how the fungus breaks down its own cell parts for nutrition and repairs its cell wall, so blocking it weakens the fungus significantly.

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Transcriptomic and metabolomic analyses unravel the different pathogenic mechanisms of Ustilaginoidea virens in indica and japonica rice

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Rice is vulnerable to a fungal disease called false smut caused by Ustilaginoidea virens. Scientists found that this fungus attacks different rice varieties in different ways. By studying gene expression and chemical changes in infected rice, they discovered that the fungus uses different molecular pathways to infect indica rice versus japonica rice, explaining why these varieties have different levels of resistance to the disease.

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