Haemorrhagic cystitis following the administration of voriconazole in the treatment of central nervous system aspergillosis: a case report

Central nervous system aspergillosis (CNS-A) is a rare and fatal fungal infection. Voriconazole is the recommended treatment for CNS-A. The therapeutic effect of voriconazole is good, but its use is limited due to adverse reactions. This case report describes a 37-year-old male patient that had previously been diagnosed with acute lymphoblastic leukaemia. He had received immunosuppressive agents for 1 year following a haematopoietic bone marrow transplant. He presented with a 1-month history of left limb weakness as well as recurrent fever. Brain magnetic resonance imaging showed that he had multiple cerebral infarctions. Subsequently, he was diagnosed with CNS-A by metagenomic next-generation sequencing. Voriconazole was added to his treatment regimen, but it resulted in severe haemorrhagic cystitis and possibly bladder rupture. The dose of voriconazole was adjusted and reparative bladder surgery was undertaken immediately. Eventually, the patient was successfully treated with voriconazole and there was no recurrence of symptoms after 1 year of follow-up. Haemorrhagic cystitis is a rare adverse drug reaction associated with voriconazole use. Based on the experience with this current case, physicians should be aware of urinary tract complications with voriconazole including haemorrhagic cystitis.     

对分课堂在《护理礼仪》教学中的应用研究

目的探讨对分课堂在高职《护理礼仪》课程教学中的应用效果。方法将我校2017级护理高职生作为观察组,在《护理礼仪》教学中实施“对分课堂”教学模式,将2016级护理高职生作为对照组,接受传统教学模式。调查观察组学生对课程教学效果的评价,并比较两组学生对于该门课程的学习效果。结果观察组的学生普遍认可对分课堂的教学方式,观察组学生的理论和技能考核得分均高于对照组(P<0.05)。结论与传统课堂相比,对分课堂提升了学生的学习主动性和学习成绩。     

2014—2018年广州周边地区圆斑蝰蛇咬伤流行病学分析

目的了解圆斑蝰蛇咬伤患者在广州周边地区的流行病学特征,为防治圆斑蝰蛇咬伤提供依据。 方法对广州医科大学附属第一医院急诊科2014年1月1日至2018年12月31日收治的圆斑蝰蛇咬伤事件的流行病学特征进行描述性分析。采用线性相关分析的方法分析咬伤后就诊时间与咬伤后出现急性肾损伤时间的相关性。 结果5年共收治毒蛇伤1481例,死亡3例,其中43例圆斑蝰蛇咬伤,死亡2例,占毒蛇伤总死亡率的66.7%（2/3）;患者分布以广州珠三角地区（肇庆、云浮、佛山、江门）伤者居多,占74.4%,9~11月是咬伤高发月份,占44.2%（19/43）,被咬伤者以农民为主,占53.5%（23/43）,50~69岁为主要高发年龄,下肢咬伤占67.4%（29/43）,蛇伤严重程度评分重度病例占74.4%（32/43）。咬伤后就诊时间与咬伤后出现急性肾损伤的时间存在显著相关性（r=0.719,P<0.01）。 结论圆斑蝰蛇咬伤是广州周边地区毒蛇伤的主要死亡原因,应对高发月份、高发地区、高发人群及高发部位进行重点监测和干预,提高公众的自我保护能力,一旦发生圆斑蝰蛇咬伤,应立即到正规医院接受针对性诊治,必要时接受血液净化治疗。     

多学科协作管理模式在胃癌合并糖尿病术后辅助化疗患者中的应用

目的 探讨多学科协作管理模式对胃癌合并2型糖尿病术后辅助化疗患者体重指数(BMI)及血糖水平控制的影响.方法 选取2018年7月至2019年6月四川省肿瘤医院综合内科收治的68例符合入组标准的胃癌合并糖尿病,且行术后辅助化疗的患者为研究对象,按照入院时间分为两组,2018年7-12月入院患者30例作为对照组,2019年...     

Facile synthesis of photoactivatable adenosine analogs

Adenosine and its derivatives are important building blocks of the biological system. They serve as the universal energy currency, amplify intracellular signals for various signal transduction pathways, and can also be used as the co-substrates for enzymatic transformations. The synthesis and regulation of adenosine and its analogs rely on the adenosine binding proteins (ABPs). Dysregulated ABP activity contributes to numerous diseases such as cancer, metabolic disorders, and neurodegenerative diseases. Presently, there is intense interest in targeting ABPs for therapeutic purposes. A large fraction of the human ABP family remains poorly characterized. The need for innovative chemical probes to investigate ABP function in the native biological matrix is apparent. In this study, an adenosine analog, probe 1, with a photoaffinity group and biotin tag was synthesized using concise synthetic strategies. This probe was able to label and capture individual recombinant ABPs with good target selectivity. Probe 1 was also evaluated for its ability to label spiked ABP in complex cell lysates. This chemical probe, together with the labeling and enrichment assay, is of great value to interrogate the biological functions of ABPs and to elucidate their diversity under different physiological conditions.

Photoactivatable adenosine analog-enabled capture and enrichment of adenosine binding protein (ABP).     

Molecular phenotypes reveal heterogeneous engraftments of patient-derived hepatocellular carcinoma xenografts

ObjectivePatient-derived xenograft (PDX) models provide a promising preclinical platform for hepatocellular carcinoma (HCC). However, the molecular features associated with successful engraftment of PDX models have not been revealed.MethodsHCC tumor samples from 76 patients were implanted in immunodeficient mice. The molecular expression was evaluated by immunohistochemistry. Patient and tumor characteristics as well as tumor molecular expressions were compared for PDX engraftment using the Chi-square test. The independent prediction parameters were identified by logistic regression analyses.ResultsThe engraftment rate for PDX models from patients with HCC was 39.47% (30/76). Tumors from younger patients and patients with elevated preoperative alpha-fetoprotein level had higher engraftment rates. Tumors with poor differentiation and vascular invasion were related to engraftment success. The positive expression of CK19, CD133, glypican-3 (GPC3), and Ki67 in tumor samples was associated with engraftment success. Logistic regression analyses indicated that GPC3 and Ki67 were two of the strongest predictors of PDX engraftment. Tumors with GPC3/Ki67 phenotypes showed heterogeneous engraftment rates, with 71.9% in GPC3⁺/Ki67⁺ tumors, 30.8% in GPC3⁻/Ki67⁺ tumors, 15.0% in GPC3⁺/Ki67⁻ tumors, and 0 in GPC3⁻/Ki67⁻ tumors. ConclusionsSuccessful engraftment of HCC PDXs was significantly related to molecular features. Tumors with the GPC3⁺/Ki67⁺ phenotype were the most likely to successfully establish HCC PDXs.     

数据挖掘技术在健康数据分析中的应用

结合健康数据自身的特点,阐述数据挖掘技术用于疾病诊断、治疗及预后评估的优势,探讨现有的健康数据挖掘应用情况以及发展趋势,提出所面临的问题和挑战,为促进数据挖掘技术在医学相关领域中的更广泛应用提供借鉴。     

Clinical features of intracerebral hemorrhage in patients with colorectal cancer and its underlying pathogenesis

BACKGROUNDThe diagnosis of both cancer and intracerebral hemorrhage (ICH) in the same patient is not uncommon, but the clinical features and pathogenesis of patients with colorectal cancer (CRC) and ICH are still not well known.AIMTo investigate the clinical features and underlying pathogenesis of ICH in patients with CRC. METHODSA retrospective review of CRC patients complicated with ICH from three centers between January 2014 and December 2020 was performed. Clinical data such as laboratory examinations, imaging features, prognosis, and underlying pathogenesis were analyzed.RESULTSOf 16673 identified CRC patients, 20 (0.12%) suffered from ICH. There were 13 males and 7 females, with an average age (mean ± SD) of 68.45 ± 10.66 years. Fourteen patients (70%) had distant metastases and most patients (85%) showed an elevation of one or more cancer biomarkers. The hemorrhagic lesions in 13 patients (65%) were in the intracerebral lobe. Four patients were completely dependent and 4 died within 30 days after hemorrhage. Intratumoral hemorrhage (50%) and coagulopathy (50%) accounted for the majority of hemorrhages.CONCLUSIONPatients with ICH and CRC often have clinical features with lobar hemorrhage, distant metastases and poor prognosis. Intratumoral hemorrhage and coagulopathy are the main causes of ICH in patients with CRC.