针罐配合推拿治疗颈肩背综合征32例

采用针罐配合推拿治疗颈肩背综合征32例,痊愈21例,占66%;显效9例,占28%;有效2例,占6%;无效0例,总有效率100%.针罐疗法可以祛风通络,除湿散寒,加上推拿可松解粘连,活血化瘀,改善病变组织的血液循环和生理功能,促进损伤组织的修复,达到治疗的目的.     

大黄酚包合物的制备及其体外释药的研究

目的 筛选制备大黄酚包合物的最佳工艺.方法 采用正交试验设计以包封率和栽药量为指标筛选最佳工艺条件,采用HPLC法测定其含量.结果 大黄酚与β-环糊精的比例为1:4,包合温度为40℃,包合时间为30 min,搅拌速度为200 r·min-1时包封率最高.结论 大黄酚包合物制备工艺简单、方便,体外释放速度快.     

综合护理干预在老年桡骨端骨折手法整复夹板固定术中的应用

目的：探究并分析综合护理干涉应用于老年桡骨端骨折手法整复夹板固定术的临床效果。方法：在我院随机选取60例老年桡骨端骨折患者行手法整复夹板固定术,并随机分配到采用常规治疗与一般护理的对照组和在常规治疗与护理的基础上采用综合护理干预的观察组,各30例。术后护理一段时间后,观察两组患者的临床疗效的总有效率,对比两组患者的愈合时间的长短。结果：术后两组的患者接受各自的护理配合一段时间后,发现观察组的患者临床疗效的总有效率远远高于对照组,两组的总有效率存在差异。结论：老年桡骨端骨折手法整复夹板固定术应用综合护理干涉能明显地提高愈合率,促进骨骼的恢复。     

A fluorescent curcumin-based Zn(II)-complex reactivates mutant (R175H and R273H) p53 in cancer cells

Background

Mutations of the p53 oncosuppressor gene are amongst the most frequent aberration seen in human cancer. Some mutant (mt) p53 proteins are prone to loss of Zn(II) ion that is bound to the wild-type (wt) core, promoting protein aggregation and therefore unfolding. Misfolded p53 protein conformation impairs wtp53-DNA binding and transactivation activities, favouring tumor growth and resistance to antitumor therapies. Screening studies, devoted to identify small molecules that reactivate mtp53, represent therefore an attractive anti-cancer therapeutic strategy. Here we tested a novel fluorescent curcumin-based Zn(II)-complex (Zn-curc) to evaluate its effect on mtp53 reactivation in cancer cells.

Methods

P53 protein conformation was examined after Zn-curc treatment by immunoprecipitation and immunofluorescence assays, using conformation-specific antibodies. The mtp53 reactivation was evaluated by chromatin-immunoprecipitation (ChIP) and semi-quantitative RT-PCR analyses of wild-type p53 target genes. The intratumoral Zn-curc localization was evaluated by immunofluorescence analysis of glioblastoma tissues of an ortothopic mice model.

Results

The Zn-curc complex induced conformational change in p53-R175H and -R273H mutant proteins, two of the most common p53 mutations. Zn-curc treatment restored wtp53-DNA binding and transactivation functions and induced apoptotic cell death. In vivo studies showed that the Zn-curc complex reached glioblastoma tissues of an ortothopic mice model, highlighting its ability to crossed the blood-tumor barrier.

Conclusions

Our results demonstrate that Zn-curc complex may reactivate specific mtp53 proteins and that may cross the blood-tumor barrier, becoming a promising compound for the development of drugs to halt tumor growth.     

心绞痛和脑梗死患者血浆TAT、D-D、ET水平变化及临床意义

目的探讨心绞痛和脑梗死患者血浆TAT、D-D、ET水平变化及临床意义。方法检测心绞痛和脑梗死组各50例及对照组40例血浆TAT、D-D、ET。结果心绞痛组和脑梗死组血浆TAT、D-D、ET水平均显著高于对照组（P〈0．01）;不稳定型心绞痛TAT、D-D、ET水平均显著高于稳定型心绞痛（P〈0．05）;急性期脑梗死TAT水平显著高于亚急性、慢性期（P〈0．01）;亚急性期D-D水平显著高于急性期和慢性期（P〈0．05）。结论血浆rrAT、D-D、ET水平反映了心绞痛和脑梗死患者凝血功能活跃、纤溶亢进、血管内皮损伤,有利于早期诊断和治疗。     

复杂性肛瘘手术切开疗法临床探析

目的:复杂性肛瘘以手术切开引流疗法,配合中药生肌散、黛柏散等清热解毒,消肿止痛。避免出现肛门失禁、出血等并发症。方法:本着罗门氏定律初步定位,以手指检查,探针检查定向内口所在部位。结论:术后,患者均无肛失禁、移位、严重畸形、狭窄、黏膜外翻等后遗症。手术切开疗法与挂线切开疗法相比较,方法简便,疼痛减轻,预后良好,不易复发。     

Reactive vaccination as control strategy for an outbreak of invasive meningococcal disease caused by Neisseria meningitidis C:P1.5-1,10-8:F3-6:ST-11(cc11), Bergamo province,Italy, December 2019 to January 2020

In Italy, serogroup C meningococci of the clonal complex cc11 (MenC/cc11) have caused several outbreaks of invasive meningococcal disease (IMD) during the past 20 years. Between December 2019 and January 2020, an outbreak of six cases of IMD infected with MenC/cc11 was identified in a limited area in the northern part of Italy. All cases presented a severe clinical picture, and two of them were fatal. This report is focused on the microbiological and molecular analysis of meningococcal isolates with the aim to reconstruct the chain of transmission. It further presents the vaccination strategy adopted to control the outbreak. The phylogenetic evaluation demonstrated the close genetic proximity between the strain involved in this outbreak and a strain responsible for a larger epidemic that had occurred in 2015 and 2016 in the Tuscany Region. The rapid identification and characterisation of IMD cases and an extensive vaccination campaign contributed to the successful control of this outbreak caused by a hyperinvasive meningococcal strain.     

Can Botulinum Toxin-A Contribute to Reconstructing the Physiological Homeostasis of the Masticatory Complex in Short-Faced Patients during Occlusal Therapy? A Prospective Pilot Study

The physiological homeostasis of the masticatory complex in short-faced patients is too robust to be disintegrated and reconstructed due to the powerful masseter muscle. This study innovatively introduced the botulinum toxin-A (BTX-A) into the field of dental occlusal treatment, providing a novel and minimally invasive therapy perspective for the two major clinical problems in these patients (low treatment efficiency and high rates of complications). In total, 10 adult patients with skeletal low angle seeking occlusal treatment (age: 27.0 ± 6.1 years; 4 males and 6 females) were administered 30–50 U of BTX-A in each masseter muscle and evaluated before and 3 months after injection based on cone-beam computed tomography (CBCT). We found a significant reduction in the thickness of the masseter muscle (MMT) (p < 0.0001). With regards to occlusion, we found a significant increase in the height of the maxillary second molar (U7-PP) (p < 0.05) with significantly flattened occlusal curves (the curve of Spee [COS] (p < 0.01), and the curve of Wilson [COW] (p < 0.05)). Furthermore, the variations in the temporomandibular joint exhibited a significant reduction in the anterior joint space (AJS) (p < 0.05) and superior joint space (SJS) (p < 0.05). In addition, the correlation analysis of the masticatory complex provided the basis for the following multiple regression equation: MMT = 10.08 − 0.11 COW + 2.73 AJS. The findings from our pilot study indicate that BTX-A, as a new adjuvant treatment attempt of occlusal therapy for short-faced patients, can provide a more favorable muscular environment for subsequent occlusal therapy through the adjustment of the biting force and may contribute to the reconstruction of healthier homeostasis of the masticatory complex. However, further research is required to establish the reliability and validity of these findings.     

Efficacy of dacomitinib in patients with non-small cell lung cancer carrying complex EGFR mutations: a real-world study

BackgroundDacomitinib is a first-line treatment for patients with non-small cell lung cancer (NSCLC) harboring common epidermal growth factor receptor (EGFR) mutations; however, clinical evidence of its activity on NSCLC with complex EGFR mutations is limited.MethodsPatients harboring complex (common mutations co-existing with uncommon mutations), or common (comparison cohort) EGFR mutations, who were treated with dacomitinib, were retrospectively evaluated in the Chinese National Cancer Center and the China PLA hospital between August 2019 and August 2021.ResultsIn total, 72 patients with NSCLC harboring complex (C+U group, n=18) or common (C group, n=54) EGFR mutations and being treated with dacomitinib were enrolled. In the C+U group, 16 cases (88.9%) harbored L858R mutations co-existing with uncommon mutations located from exon 18 to exon 25 of EGFR (mostly E709X), and two cases harbored exon 19 deletion co-existing with G724S or K754E. Among the 15 evaluable patients, the objective response rate (ORR) was 40% (6/15), and the disease control rate (DCR) was 73.3% (11/15). The median progression-free survival (PFS) was 7.5 months [95% confidence interval (CI), 4.4–10.6 months]. Except for the application line of dacomitinib (P=0.039), no significant statistical differences were found in other characteristics and adverse events between the two groups. The Kaplan-Meier method revealed no significant differences in PFS (P=0.889) and overall survival (OS) (P=0.703). However, the stratified analysis found worse PFS in the C+U group than that observed in the C group when receiving 1^st and ≥3^rd line dacomitinib treatment, while its OS was worse than that of group C when receiving ≥3^rd line treatment. Furthermore, in a multivariate analysis, complex mutation status was an independent prognostic factor for OS (P=0.038) in the entire cohort.ConclusionsThis study indicated a worse response and prognosis of patients with NSCLC harboring complex EGFR mutations than those harboring common EGFR mutations when treated with dacomitinib. Further studies and data are needed to confirm this conclusion.     

The Effect of Antimony (III) Oxide on the Necessary Amount of Precursors Used in Laser-Activated Coatings Intended for Electroless Metallization

The article presents research on the potential use of organometallic compounds with the addition of antimony (III) oxide Sb₂O₃ as a coating additive that will make coatings susceptible to electroless metallization after prior surface irradiation with 193 nm wavelength laser radiation and a different number of laser pulses. The surface modification and activation effects were assessed by optical-imagining as well as by scanning electron microscopy (SEM) with energy dispersive analysis (EDX). It was found that the presence of Sb₂O₃ in the coating made it possible to reduce the content of the copper complex, causing an intensive surface ablation, resulting in the formation of a conical structure with a higher content of metallic copper nuclei.