Objective: To study the role of auto-antibody in the diagnosis of patients with PBC. Methods: ANA, SMA and AMA in serum of 58 PBC patients were tested by indirect immune fluorescence and Western blot. Such auto-antibodies as Anti-type AMAM2,anti-SLA/LP, anti-LKM-1 and anti-LC-1 were also identified. Results: Auto-antibodies existing in patients with PBC were mainly AMA(96.5%) and AMAM2(93.1%) and the titer was beyond 1∶100. 8 cases of those patients were positive with ANA and SMA simultaneously. One case had positive AMA and SLA/LP in serum and the clinical appearances were the same as those of type Ⅰ and type Ⅲ autoimmune hepatitis. 19 patients with positive AMAM2 in serum had liver-puncture and the results suggested the diagnosis of PBC in 63.7%(12/9). Conclusion: Test of auto-antibodies is clinically significant for the diagnosis of autoimmune hepatitis.

【Objective】 To explore the molecular hereditary and frequency of Jk(a-b-) in blood donors in Yichang. 【Methods】 A total of 49 999 samples from Yichang Red Cross Central Blood Station were screened for Jk(a-b-) by urea hemolysis test(2 mol /L). The phenotypes of JK (a-b -) probands and their families were confirmed by monoclonal anti-Jk^a and anti-Jk^b, and the whole exon of SLC14A1 gene was sequenced. 【Results】 The frequency of Jk(a-b-) in Yichang blood donors was 0.004% (2/49 999), and the exon sequencing of SLC14A1 gene confirmed that both two probands were JK^*02N.01 caused by c. 342-1G>A homozygous mutation.Besides, JK^*01W.01 allele was observed in the pedigree analysis, and weak expression of Jk^a was found in 4 out of 11 family members. 【Conclusion】 The frequency of JK (a-b -) in Yichang blood donors is similar to those in Shanghai 0.004%(2/48 400), and both caused by JK ^* 02N.01 allele with high frequency in Southeast Asia. The epidemiological survey of JK ^* 01w.01 allele frequency should be further performed.

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.