[Cross-Sectional Study of Nutritional Status and Dietary Nutrient Intake in Children with Duchenne Muscular Dystrophy (DMD) in China].

Objective: To investigate the dietary nutrient intake and the nutritional status of children with Duchenne muscular dystrophy (DMD), and to explore the correlation between them, so as to provide theoretical basis for the formulation of proper nutritional treatment for children with DMD.

Methods: A total of 223 children aged 2 to 14 years who came to West China Second University Hospital, Sichuan University from July 2017 to April 2021, and who were diagnosed with DMD by genetic testing were enrolled as the subjects of the study. Dietary assessment was conducted with a 3-day 24-hour dietary recall, and serum vitamin D level was measured by chemiluminescence method.

Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert.

The main prevention and control area for wind-blown sand hazards in northern China is about 320000 km(2) in size and includes sandlands to the east of the Helan Mountain and sandy deserts and desert-steppe transitional regions to the west of the Helan Mountain. Vegetation recovery and restoration is an important and effective approach for constraining wind-blown sand hazards in these areas. After more than 50 years of long-term ecological studies in the Shapotou region of the Tengger Desert, we found that revegetation changed the hydrological processes of the original sand dune system through the utilization and space-time redistribution of soil water.

Protective mechanism of desiccation tolerance in Reaumuria soongorica: leaf abscission and sucrose accumulation in the stem.

Reaumuria soongorica (Pall.) Maxim., a perennial semi-shrub, is widely found in semi-arid areas in northwestern China and can survive severe desiccation of its vegetative organs.