Objective:To analyze relationship between 13q14 deletion and prognosis in initial-treatment patients with multiple myeloma (MM).Methods:The follow-up data of 121 patients with newly diagnosed MM admitted to the First People's Hospital of Xiangtan City from January 2012 to December 2016 were collected and divided into deletion group ( n=39) and non deletion group ( n=82) according to the deletion of 13q14.The prognosis situations were compared among patients with different 13q14 deletion. Univariate analysis was performed for 3-year overall survival (OS) and progression free survival (PFS) in patients with MM. Results:As of the follow-up time, the 3-year OS rate, 3-year OS, 3-year PFS rate, 3-year PFS and median PFS were 71.90%(87/121), 5.8-36 months, 47.93%(58/121), 2.3-36 months and 34.8 months, respectively. The age, hypoproteinemia, high lactic dehydrogenase (LDH) and 13q14 deletion were independent influencing factors of OS ( P<0.05). The age, high LDH and 13q14 deletion were independent influencing factors of PFS ( P<0.05). The 3-year OS rate and 3-year PFS rate in 13q14 deletion group were 61.54%(24/39) and 25.64%(10/39), lower than those in non-deletion group ( P<0.05). Conclusions:The short-term prognosis is poor in initial-treatment MM patients with 13q14 deletion. Conducting risk stratified treatment for patients based on common influencing factors of OS and PFS is conducive to improving their prognosis.

Anelectrochemicallyreducedgrapheneoxide/goldnanoparticle-chitosan(ERGO/AuNP-CS) composite film modified glassy carbon electrode ( GCE) was constructed by directly electrochemical reduction of GO, and then assembly of AuNP-CS polycation on the surface. The surface morphologies of different modified electrodes including bare GCE, GCE/GO, GCE/ERGO and GCE/ERGO/AuNP-CS were characterized by scanning electron microscopy ( SEM ) . The differential pulse voltammetric behaviors of the electrodes were investigated, and the results indicated that the composite of ERGO/AuNP-CS exhibited excellent electrocatalytic oxidation activity to uric acid ( UA) molecule. In 0. 10 mol/L of phosphate buffer solution (pH=6. 5) with a scanning rate of 100 mV/s, the proposed composite film modified electrode showed a linear electrochemical response to UA in the range of 0 . 05-110 μmol/L with a detection limit of 12. 4 nmol/L ( S/N = 3 ). The electrode displayed good selectivity, reproducibility and stability in the determination of UA in human serum and urine samples with a recovery of 93 . 8%-104 . 1%. The detection results were agreed with those of conventional spectrophotometry and uricase Kit methods.

Objective:To analyze the relationship between coagulation dysfunction and severity and prognosis in patients with acute severe trauma.Methods:Seventy-four patients with acute severe trauma treated at our hospital from July 2018 to September 2019 were included. According to the injury severity score (ISS) > 25 points, > 16 points and ≤25 points, and ≤16 points, patients were divided into the extremely critical group, critical group, and non-critical group. And according to the prognosis, the patients were divided into the death and survival groups. All patients had the blood coagulation function test within 24 h of admission. The coagulation function of patients in each group was compared, and the relationship between coagulation dysfunction and the severity and prognosis of patients were retrospectively analyzed.Results:There were significant differences in FIB, PT, D-D, PLT, K value, Ma value, R value and α angle among the extremely critical group, critical group, and non-critical group. FIB, PT, APTT, D-D, PLT and K value of thromboelastogram were negatively correlated with FIB and PLT in the death group and survival group, while FIB, PT, APTT, D-D, PLT and K value of thromboelastogram were positively correlated with PT and DD. Ma value was positively correlated with FIB and PLT, negatively correlated with PT and APTT, R value was positively correlated with PT, APTT, D-D and PLT, and α angle was positively correlated with FIB and PLT, and negatively correlated with PT ( P < 0.05). Conclusions:Coagulation function examination and thromboelastogram can help to determine the severity of the disease and evaluate the prognosis.