玻璃体腔组织纤溶酶原激活剂治疗玻璃体黄斑粘连

目的：评估仅玻璃体腔注射组织纤溶酶原激活剂(TPA)对玻璃体黄斑牵引以及玻璃体腔注射TPA和贝伐单抗对视网膜血管疾病的改善作用。

方法：前瞻性研究。对24例24眼患者进行干预性系统研究。其中5眼玻璃体黄斑牵引综合征(VMT),19眼视网膜血管疾病包括：糖尿病黄斑水肿(DME)眼,糖尿病性玻璃体出血(VH)眼,视网膜中央静脉阻塞(CRVO)和新生血管年龄相关性黄斑变性眼(AMD)。在注射前及注射1mo后分别进行视力,B超和OCT检查。3眼VMT接受玻璃体腔单次注射TPA50 μg,2眼接受100 μg 注射。19例视网膜血管疾病患者接受玻璃体腔组织纤溶酶原激活剂(50 μg)和贝伐单抗(1.25 mg)联合治疗。

结果：纳入病例中男性10眼视网膜血管疾病和VMT患者平均年龄分别为56.8y 和60.4y。纳入病例中男性10眼(41.7%),女性14眼(58.3%)。22眼(91.7%)晶状体眼,2眼(8.3%)人工晶状体眼。VMT和视网膜血管疾病的玻璃体后部脱离(PVD)分别为0(0/5)和57.8%(11/19)(P=0.04)。在改善最佳矫正视力(BCVA)和降低黄斑中心凹厚度(CMT)方面,与无PVD眼相比,有PVD眼改善更多。

结论：在VMT患者中,单独玻璃体腔内注射TPA不能成功诱导玻璃体后部完全脱离。玻璃体腔联合注射TPA和贝伐单抗可引起视网膜血管疾病患者玻璃体后部脱离,提高最佳矫正视力以及降低黄斑中心凹厚度。     

慢性前列腺炎病原菌感染特征及危险因素分析

目的 分析慢性前列腺炎（CP）病原菌感染特征及危险因素,为降低CP病原菌感染及临床预防治疗提供理论依据。方法 收集2010年1月 - 2017年12月门诊及住院CP治疗患者826例,分析病原菌感染特征,并采用单因素及多因素logistic回归分析病原菌感染的危险因素。结果 826例CP病人中培养阳性患者482例,感染率为58.35%。482例患者检出病原菌520株,G+球菌448株（86.15%）、G-杆菌49株（9.42%）、G+杆菌23株（4.42%）。G+球菌以表皮葡萄球菌为主,G-杆菌以大肠埃希菌为主。各病原菌对抗菌药物表现出不同程度耐药性。多因素logistic回归分析显示有尿路感染史、每周手淫次数≥2次、每周性生活次数≥4次、长时间憋尿史、固定体位时间≥3 h、性伴侣感染、酗酒是发生CP病原菌感染的独立危险因素（P＜0.05）。结论 临床应根据病原菌药敏结果及药代动力学知识正确合理选择抗菌药物,提高治愈率,制定防治危险因素的措施,减少感染的发生。     

A rare case of acral amelanotic melanoma,nodular type

Amelanotic melanoma is a rare melanoma subtype, and it is even more rare when it occurs at an acral site. We here present a case of a nodular amelanotic acral melanoma (NAAM) occurring on the heel of an 83‐year old female. It presented as an ulcerated pink nodular growth on the heel, which clinically mimicked other nodular non‐pigmented lesions, causing a delay in diagnosis until it was biopsied. This case is a demonstration of the critical importance to include NAAM in the differential diagnosis of nodular non‐pigmented skin lesions as to avoid delay in diagnosis and disease progression, in which early detection can provide the most modifiable prognostic factor.     

应用双向内置式牵引器矫正下颌骨短小畸形

目的:观察应用双向内置式下颌骨牵引器矫正下颌骨短小畸形结果.方法:下颌骨短小畸形2 例.在下颌角部位截骨,以下颌角为中心将双向内置式下颌骨牵引器上、下活动翼分别固定于升支和体部骨表面.术后第7 天开始牵引,各牵引螺杆的牵引速度为0.5~1.0 mm/d.待下颌骨升支高度和体部长度恢复较为理想后停止牵引,固定牵引装置3 个月. 结果:2 例患者均按计划完成牵引,无并发症.牵引升支和体部长度均为15 mm,下颌骨形态恢复理想.结论:双向内置式下颌骨牵引器可以在二维方向对下颌骨短小畸形的患者进行下颌骨形态重建,可以作为治疗不同类型下颌骨短小畸形的优选牵引装置之一.     

MTA pulpotomy of human permanent molars with irreversible pulpitis

The histological success of mineral trioxide aggregate (MTA) pulpotomy for treatment of irreversible pulpitis in human teeth as an alternative treatment was investigated in this study. Fourteen molars which had to be extracted were selected from patients 16–28 years old. The selection criteria include carious pulp exposure with a history of lingering pain. After isolation, caries removal and pulp exposure, MTA was used in pulpotomy treatment. Patients were evaluated for pain after 24 h. Two patients were lost from this study. Twelve teeth were extracted after 2 months and were assessed histologically. Recall examinations confirmed that none of the patients experienced pain after pulpotomy. Histological observation revealed that all samples had dentin bridge formation completely and that the pulps were vital and free of inflammation. Although the results favour the use of MTA as a pulpotomy material, more studies with larger samples and a longer recall period are suggested to justify the use of MTA for treatment of irreversible pulpitis in human permanent teeth.     

A Systematic Literature Review on Waste-to-Resource Potential of Palm Oil Clinker for Sustainable Engineering and Environmental Applications

Several agro-waste materials have been utilized for sustainable engineering and environmental application over the past decades, showing different degrees of effectiveness. However, information concerning the wider use of palm oil clinker (POC) and its performance is still lacking. Therefore, as a solid waste byproduct produced in one of the oil palm processing stages, generating a huge quantity of waste mostly dumped into the landfill, the waste-to-resource potential of POC should be thoroughly discussed in a review. Thus, this paper provides a systematic review of the current research articles on the several advances made from 2005 to 2021 regarding palm oil clinker physical properties and performances, with a particular emphasis on their commitments to cost savings during environmental and engineering applications. The review begins by identifying the potential of POC application in conventional and geopolymer structural elements such as beams, slabs, and columns made of concrete, mortar, or paste for coarse aggregates, sand, and cement replacement. Aspects such as performance of POC in wastewater treatment processes, fine aggregate and cement replacement in asphaltic and bituminous mixtures during highway construction, a bio-filler in coatings for steel manufacturing processes, and a catalyst during energy generation are also discussed. This review further describes the effectiveness of POC in soil stabilization and the effect of POC pretreatment for performance enhancement. The present review can inspire researchers to find research gaps that will aid the sustainable use of agroindustry wastes. The fundamental knowledge contained in this review can also serve as a wake-up call for researchers that will motivate them to explore the high potential of utilizing POC for greater environmental benefits associated with less cost when compared with conventional materials.     

2009年金华市中心医院细菌耐药性监测

目的了解金华市中心医院2009年临床分离的细菌对各类抗菌药物的耐药性。方法纸片扩散法(K-B法)检测临床分离菌对各类抗菌药物的敏感性,判断标准参照2007年版CLSI文件。结果临床共分离出2224株细菌,其中革兰阴性菌占75.7%,革兰阳性菌占24.3%;耐甲氧西林金黄色葡萄球菌(MRSA)和耐甲氧西林凝固酶阴性葡萄球菌(MRCNS)分别占51.7%和91.5%,肠球菌属中,屎肠球菌的检出率首次高于粪肠球菌,分别为52.1%、25.5%;屎肠球菌对多数测试药的耐药率高于粪肠球菌,但对氯霉素的耐药率相反;大肠埃希菌和克雷伯菌属中ESBLs检出率分别为53.8%和43.1%;不动杆菌属对头孢哌酮/舒巴坦较敏感,对亚胺培南、美罗培南的耐药率分别为52.2%、60.1%;出现7株泛耐药铜绿单胞菌和5株泛耐药鲍氏不动杆菌。结论医院细菌的耐药现状比较严峻,尤其是泛耐药不发酵糖革兰阴性杆菌的增多,应引起重视,并及早采取预防控制措施。     

Identification of angular naphthopyrones from the Philippine echinoderm Comanthus species as inhibitors of the NF-κB signaling pathway

In the past few years heat shock protein 90 (Hsp90) inhibitors have been reported to possess significant antitumor activity. We investigated, for the first time, the antitumor activity of a novel Hsp90 inhibitor 2-(4-acetyloxycyclohexylamino)-4-(3, 6, 6-trimethyl-4-oxo-4, 5, 6, 7-tetrahydro-1H-indazol-1-yl)-benzamide (BJ-B11) and the molecular mechanism underlying the apoptosis it induces in human chronic myeloid leukemia K562 cells. The results revealed that BJ-B11 triggered growth inhibition in K562 cells and other malignant cell lines in vitro with only minor toxicity in a normal human cell line. BJ-B11 inhibited the proliferation of K562 cells in a concentration- and time-dependent manner, with IC(50) values of 1.1 ± 0.2 μM and 0.4 ± 0.1 μM after 48 and 72 h incubations respectively. This most likely results from cell cycle arrest at the G(0)/G(1) phase and the induction of apoptosis. In addition, BJ-B11 degraded the Hsp90 client proteins Bcr-Abl and Akt, induced activation of caspase-9 and caspase-3, and subsequent cleavage of PARP. The caspase signals may originate from mitochondrial dysfunction, which is supported by the finding of cytochrome c release. In addition, inactivation of the Akt signaling pathway may be involved in the process of BJ-B11-induced apoptosis. Taken together, our data provide a putative molecular mechanism for the anticancer effect of BJ-B11 on K562 cells, and suggest a potential application for BJ-B11 in chronic myeloid leukemia therapy.