Observation of tongue picture and tongue and nailbed microcirculation before and after blood dialysis in 125 uremic patients with deficiency of kidney-yang

using a WZD—1 microcirculation microscope,we observed the tongue tipand nail-bed microcirculation of uremic patients with deficiency of kidney-yangbefore and after blood dialysis.The results showed that the pathological basis ofuremia with deficiency of kidney-yang may be microcirculation disturbance,in-crease of metabolites and water retention.The effusion from capillary loops intongue tip may be one of the pathogenetic factors of a swollen and jaggedtongue.The flow rate of blood in capillary loops in the nail-bed was apparentlyabnormal and markedly improved after blood dialysis.The weighted integral ofnail-bed microcirculation decreased from moderately abnormal (4.99±1.52) toapproximately normal (1.98±0.97) (P【0.01).Microcirculation seems to be a sensi-tive criterion for reflecting the pathologic changes of uremia with deficiency ofkidney-yang.

Identification of Human Serum Protein Targets of Qianggu Decoction(强骨饮) in Primary Type Ⅰ Osteoporosis Based on Tandem Mass Tag Labeling and Liquid Chromatography-Tandem Mass Spectrometry Technology

Objective： To investigate the serum protein targets of Qianggu Decoction（强骨饮, QGD） on treating osteoporosis by the proteomics analysis using tandem mass tag（TMT） and liquid chromatographytandem mass spectrometry（LC-MS/MS）. Methods： Twenty serum protein samples were recruited（10 patients with primary type Ⅰ osteoporosis before and after QGD treatment） and the high abundance ratios protein was removed, two serum samples were extracted and labeled with TMT reagent. Then, mass spectrometric detection, identification of differentially expressed proteins and bioinformatics analysis of differentially expressed proteins were carried out. Results： A total of 60 proteins were identified, within a 99% confidence interval, to be differentially regulated of which, 34 proteins were up-regulated and 26 proteins were down-regulated. Differentially expressed proteins analyzed by Gene Ontology（GO） annotation mainly get involved in 12 different biological processes, 7 types of cellular components, and 6 kinds of molecular functions. Angiotensinogen（AGT）, stromelysin-1（MMP3）, heparanase（HPSE） and glyceraldehyde-3-phosphate dehydrogenase（GAPDH） were screened as candidate protein targets of QGD treatment, which were related to metabolic mechanism of bone remodeling and/or bone collagen of osteoporosis. By the utilization of the protein-protein interaction network analysis tool named STRING10.0, it showed that AGT, MMP3, HPSE and GAPDH were located in the key node of the protein-protein interactions network. Furthermore, AGT, MMP3, HPSE and GAPDH were found to be directly related to BMP, MAPK, Wnt, SMAD and tumor necrosis factor ligand superfamily member 11（TNFSF11） families. Conclusions： The proteomics analysis by using TMT combined with LC-MS/MS was a feasible method for screening the potential therapeutic targets associated with QGD treatment. It suggests that AGT, MMP3, HPSE and GAPDH may be candidate protein targets of QGD treatment which can be used as therapeutic effect monitor and early diagnosis of primary type Ⅰ osteoporosis.

Histone demethylase Kdm5c regulates osteogenesis and bone formation via PI3K/Akt/HIF1α and Wnt/β-catenin signaling pathways

Fractures have an extraordinarily negative impact on individuals'quality of life and functional status.Nonunion or disability of fracture is a major health issue with important clinical,social,and economic implications.1 Mesenchymal stem cells(MSCs)play an indispensable role in the initiation of the fracture repair process including the formation of a callus which is replaced by new bone.The use of MSCs in the treatment of fractures is very attractive as they can reduce the time of healing and occurrence of nonunion.