(Poaceae), a new species from the north-western Qinghai-Tibetan Plateau, China.

A new species from China, Y.C. Zhang, is described and illustrated herein, based on morphological characters and molecular phylogenetic analysis.

Regulation of Hedgehog signaling Offers A Novel Perspective for Bone Homeostasis Disorder Treatment.

The hedgehog (HH) signaling pathway is central to the regulation of bone development and homeostasis. HH signaling is not only involved in osteoblast differentiation from bone marrow mesenchymal stem cells (BM-MSCs), but also acts upstream within osteoblasts via the OPG/RANK/RANKL axis to control the expression of RANKL. HH signaling has been found to up-regulate parathyroid hormone related protein (PTHrP) expression in osteoblasts, which in turn activates its downstream targets nuclear factor of activated T cells (NFAT) and cAMP responsive element binding protein (CREB), and as a result CREB and NFAT cooperatively increase RANKL expression and osteoclastogenesis.

[Dew amount and its inducing factors in the loess hilly region of northern Shaanxi Province, China].

In order to determine the characteristics of dew amount and its inducing factors in the semi-arid area of loess hilly region of China, a year-long in-situ monitoring experiment was carried out in Ansai County of Shaanxi Province, using a leaf wetness sensor (LWS). Results showed that the annual cumulative dew amount in Ansai area in the water year of 2015-2016 was 29.85 mm with a daily maximum of 0.