微创缝合联合术后早期加速康复治疗急性跟腱断裂的临床研究

目的 探讨利用自制缝线引导钳通过小切口微创缝合技术联合术后加速康复治疗急性跟腱断裂的方法和疗效.方法 前瞻性分析2015年10月—2017年4月中部战区总医院足踝与运动医学中心收治的跟腱断裂患者63例,男性55例,女性8例;年龄14～61岁,平均38.5岁;其中借助自制的缝线引导钳,通过小切口微创缝合技术治疗急性闭合性...     

血液中乙醇浓度的快速分析方法

目的建立一种血液中乙醇浓度的气相色谱快速分析方法。方法全血经离心后取血清0.5μl直接进样,气相色谱FID检测器和GD×1 0 3玻璃柱分析。结果本方法乙醇标准曲线相关系数r=0.9 9 9 8,2 0 mg/1 0 0 ml和80 mg/1 0 0 ml浓度加标回收率分别为9 3.0%和9 1.7%,相对标准偏差RSD(%)分别为2.3 3和2.1 2,最低检出浓度为3 mg/1 0 0 ml,分离分析过程在1 0 min内。结论此方法简化了分析过程,精确度和检出限能够满足检测需要,适用于血液中乙醇的快速分析。     

A stable and reliable animal model for hepatocellular carcinoma with portal vein tumor thrombus

<正>To the Editor:Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide [1,2].Portal vein tumor thrombus (PVTT) has been demonstrated to be a poor prognostic indicator for HCC [3-5].However,effective treatment for the condition is still limited.Understanding the insight into the molecular mechanisms behind PVTT development may help to establish a new therapeutic strategy.Animal models which mimic the development of PVTT in humans are necessary to figure out the molecula...     

Detecting spontaneous deception in the brain

Deception detection can be of great value during the juristic investigation. Although the neural signatures of deception have been widely documented, most prior studies were biased by difficulty levels. That is, deceptive behavior typically required more effort, making deception detection possibly effort detection. Furthermore, no study has examined the generalizability across instructed and spontaneous responses and across participants. To explore these issues, we used a dual‐task paradigm, where the difficulty level was balanced between truth‐telling and lying, and the instructed and spontaneous truth‐telling and lying were collected independently. Using Multivoxel pattern analysis, we were able to decode truth‐telling versus lying with a balanced difficulty level. Results showed that the angular gyrus (AG), inferior frontal gyrus (IFG), and postcentral gyrus could differentiate lying from truth‐telling. Critically, linear classifiers trained to distinguish instructed truthful and deceptive responses could correctly differentiate spontaneous truthful and deceptive responses in AG and IFG with above‐chance accuracy. In addition, with a leave‐one‐participant‐out analysis, multivoxel neural patterns from AG could classify if the left‐out participant was lying or not in a trial. These results indicate the commonality of neural responses subserved instructed and spontaneous deceptive behavior as well as the feasibility of cross‐participant deception validation.     

半乳凝素-9的研究进展

半乳凝素(galectin)功能多样,galectin-9作为家族成员之一,除了能诱导嗜酸粒细胞聚集和活化外,还介导细胞分化、凋亡、黏附、细胞间聚集、炎症反应的调控和肿瘤转移等。文章将就近年来galectin-9的研究进展进行综述。     

Extremely high serum CA19-9 level along with elevated D-dimer in assisting detection of ruptured ovarian endometriosis

BackgroundTo clarify clinical importance of serum CA19-9, CA-125, and plasma D-dimer (D-D) levels in detecting spontaneously ruptured ovarian endometriosis (OE).Materials and MethodsWe retrospectively examined 173 patients with endometriosis out of 735 cases of OE between 2013 and 2019. Among these, 21 cases were diagnosed as “spontaneously ruptured” after surgery, while the remaining cases were unruptured. Venous blood was collected pre-operatively to detect CA19-9, CA-125, and D-D levels. A receiver operating characteristic curve analysis was applied to test clinical value of each marker.ResultsAmong the 21 patients with ruptured OE, 16 had a history of pelvic cysts, 19 claimed sudden onsets of lower abdominal pain, and fluid accumulation were detected in cul-de-sac in only six participants by ultrasound. For serological investigation, both CA19-9 and D-D were significantly elevated in the ruptured OE group (343.09 ± 367.67 U/ml vs. 36.84 ± 40.01 U/ml, 3.39 ± 4.90 mg/L vs. 0.43 ± 0.29 mg/L, both p < .0001). The area under curve (AUC) value for the combination of CA19-9 and D-D was 0.975 (95% CI, 0.939 − 0.993), with specificity of 96.69%, and sensitivity of 85.71%. The combination of CA-125, CA19-9 and D-D showed the highest AUC value that up to 0.976 (95% CI, 0.940–0.993), with sensitivity of 95.24%, and specificity of 87.50%.ConclusionThe combination of CA19-9 and D-D can be chosen as an effective and economical indicators to identify patients with spontaneously ruptured OE in pre-operation assessment. However, from the perspective of differential diagnosis, the combination of CA-125, CA19-9 and D-D is the best choice.

Key messages

• Taking into account the economic effect, the combination of CA19-9 and D-D can be chosen as an effective indicators to identify patients with spontaneously ruptured OE in pre-operation assessment.
• From the perspective of differential diagnosis, the combination of CA-125, CA19-9 and D-D is the best choice to identify patients with spontaneously ruptured OE.