OBJECTIVETo establish a near-infrared qualitative analysis model to identify the authenticity of Polygonum multiflo- rum and distinguish processed products Polygoni Multiflori Radix.

METHODThe NIR spectra were peformed on over 30 batches of P. multiflorum and Polygoni Multiflori Radix samples and the adulterants Cynanchum bungei, Pteroxygonum giraldii, Polygonum cillinerve to establish the qualitative discriminant model and the conformity test model of Polygonum multifiorum , and cluster analysis was used to analyze the samples from different origins.

RESULTThe model is able to identify correctly P. multiflorum with its counterfeit, and distinguish between P. multiflorum and Polygoni multiflori Radix.

CONCLUSIONNear-infrared spectroscopy can be applied in the identification of P. multiflorum, which could be used to screen Chinese herbal medicine preliminarily.

Drugs, Chinese Herbal ; chemistry ; Plant Roots ; chemistry ; Polygonum ; chemistry ; Spectroscopy, Near-Infrared ; methods

We have established a quantitative analysis of multi-components by single marker method (QAMS) for the simultaneous determination of apigenin-7-glucuronide, quercitrin, yuankanin, luteolin, apigenin, hydroxygenkwanin, and genkwanin in Qutan Zhike Granules. The chromatographic column used was an Agilent EC-C18 (150 mm × 4.6 mm, 4 μm), the mobile phase was methanol-0.15% phosphoric acid solution (gradient elution), and the detection wavelength was 338 nm. Apigenin was chosen as the internal reference standard, the relative correction factors for the six components were determined by multi-point correction method and included apigenin-7-glucuronide, quercitrin, yuankanin, luteolin, hydroxygenkwanin and genkwanin. According to the two-point correction method combined with the relative retention time correction of the components to be tested, the peak location was determined. The contents of these seven compounds in 10 batches of Qutan Zhike Granules samples were determined with relative correction factors, and the relative error (RE) was used to compare the results to that of the external standard using the External Standard Method to verify the accuracy of QAMS. The relative correction factors for apigenin-7-glucuronide, quercitrin, yuankanin, luteolin, hydroxygenkwanin and genkwanin were 1.762 8, 2.310 4, 1.898 4, 1.282 8, 1.191 3 and 1.066 9, respectively. RSDs of the relative correction factors were all lower than 3%. The peaks for each constituent were accurately located by the two-point correction method combined with relative retention time correction, and the predicted retention time was close to the actual retention time. The relative error of the contents by QAMS and determined by ESM in 10 batches of Qutan Zhike Granules were between -5% and 5%. This content determination method can be used for the simultaneous determination of seven components in Qutan Zhike Granules.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.