Microdeletion 3q13.33-3q21.2: A Rare Cause of Neurodevelopmental Disorder.

Chromosomal sub-microscopic imbalances, such as microdeletions and microduplications, are associated with multiple genetic disorders. Here, we illustrate microdeletion 3q13.33q21.

Predictive Model and Precaution for Oral Mucositis During Chemo-Radiotherapy in Nasopharyngeal Carcinoma Patients.

Purpose: To explore risk factors for severe acute oral mucositis of nasopharyngeal carcinoma (NPC) patients receiving chemo-radiotherapy, build predictive models and determine preventive measures.

Methods And Materials: Two hundred and seventy NPC patients receiving radical chemo-radiotherapy were included. Oral mucosa structure was contoured by oral cavity contour (OCC) and mucosa surface contour (MSC) methods.

Gamma-aminobutyric acid mediates nicotine biosynthesis in tobacco under flooding stress.

Gamma-aminobutyric acid (GABA) is a four-carbon non-protein amino acid conserved from bacteria to plants and vertebrates. Increasing evidence supports a regulatory role for GABA in plant development and the plant's response to environmental stress. The biosynthesis of nicotine, the main economically important metabolite in tobacco, is tightly regulated.