Investigation and clarification of traditional measuring units of Tibetan medicine / 中国中药杂志

Quantity is the key factor to ensure the safety and effectiveness of medicines. It is very important to study and determine the traditional measuring units and their quantity values of Tibetan medicine. Based on the literature records of Tibetan medicine and combined with modern experimental verification and investigation research, this study determined the reference, name, and conversion rate of traditional measuring units of Tibetan medicine. Meanwhile, through large sample sampling and repeated quantification of refe-rence of basic units, its weight and volume were clarified. The modern SI volume and weight unit values corresponding to the traditional volume and weight units of Tibetan medicine were deduced, and the correctness, reliability, and practicability of these determination results were demonstrated. This study also put forward some specific suggestions and reference values for formulating the standards of measuring units of weight and volume of Tibetan medicine. It is of great significance in guiding the processing, production, and clinical treatment of Tibetan medicine, and promoting the standardization and standardized development of Tibetan medicine.

Genome-wide characterization and expression profiling of the relation of the HD-Zip gene family to abiotic stress in barley (Hordeum vulgare L.).

The homeodomain-leucine zipper (HD-Zip) gene family plays an important role in plant growth and environmental responses. At present, research on the HD-Zip gene family of barley is incomplete. In this study, 32 HD-Zip genes (HvHD-Zip 1-32) were identified from the barley genome and were subsequently divided into four subfamilies according to conserved structure and motif analysis. Whole genome replication events in barley and Arabidopsis, rice, and wheat HD-Zip gene families were analyzed, yielding 3, 14 and 25 gene pairs, respectively, but no segmental or tandem duplication events were identified in the barley HD-Zip gene family. Subsequently, quantitative real-time PCR (qRT-PCR) analysis revealed that the HvHD-Zip gene is sensitive to drought stress and that members of the HD-Zip I and HD-Zip IV subfamilies are generally more sensitive to abiotic stresses. Our results suggest a relationship between barley resistance and the potential key HvHD-Zip gene, which lay the foundation for further functional studies.