针刺干预对单眼视觉剥夺模型大鼠视皮层方位柱“漂移”和异常重组的调节作用及其脑功能机制

探讨针刺干预对大鼠单眼视觉剥夺后视皮层方位柱“漂移”和通道重组的影响，初步阐明其作用机制。     

Near‐infrared photoimmunotherapy through bone

Near‐infrared photoimmunotherapy (NIR‐PIT) is a molecularly targeted cancer phototherapy that is based on injecting a conjugate of a silicon‐phthalocyanine derivative, IRdye 700DX (IR700), and a monoclonal antibody that targets an expressed antigen on the cancer cell surface. Subsequent local exposure to NIR light results in the rapid and highly selective immunogenic cell death of targeted cancer cells. Because many cancers grow in bones through which light does not penetrate well, the goal of this study was to determine if NIR‐PIT can effectively treat cancers in bone. A bovine rib was used as a bone sample. Because the sample’s NIR light transmittance was shown to be approximately 4.52% in preliminary tests, it was hypothesized that a maximum radiation dosage of 128 and 1500 J/cm² would be sufficient to induce cell death in in vitro target cells and in vivo mouse tumor models, respectively. Cell viability was measured through bioluminescence studies comparing relative luciferase activity, as well as a cytotoxicity assay. In the in vitro model, tumor cell viability was significantly decreased after 64 and 128 J/cm² NIR light irradiation through the bone. An in vivo mouse tumor model also showed that 1500 J/cm² NIR light irradiation through the bone significantly reduced tumor viability at both 24 and 48 hours posttreatment compared to the control group (P = .026 and .040 respectively). Therefore, despite limitations in light transmission, NIR‐PIT nevertheless is capable of effectively treating cancers within bone.     

Oxyhemoglobin changes in the prefrontal cortex in response to cognitive tasks: a systematic review

Purpose of the study: the aim of this study was to synthesize PFC fNIRS outcomes on the effects of cognitive tasks compared to resting/baseline tasks in healthy adults from studies utilizing a pre/post design.

Material and methods: original research studies were searched from seven databases (MEDLINE, EMBASE, CENTRAL, CINAHL, SCOPUS, PEDro and PubMed). Subsequently, two independent reviewers screened the titles and abstracts followed by full-text reviews to assess the studies' eligibility.

Results: eleven studies met the inclusion criteria and had data abstracted and quality assessed. Methodology varied considerably and yet cognitive tasks resulted in the ΔO₂Hb increasing in 8 of the 11 and ΔHHb decreasing in 8 of 8 studies that reported this outcome. The cognitive tasks from 10 of the 11 studies were classified as “Working Memory” and “Verbal Fluency Tasks”.

Conclusions: although, the data comparison was challenging provided the heterogeneity in methodology, the results across studies were similar.     

近红外自体荧光显像技术在甲状腺癌根治性手术中辅助甲状旁腺识别应用1例报告并文献复习

甲状腺癌(thyroid carcinoma)是一种起于甲状腺滤泡上皮或滤泡旁上皮细胞的恶性肿瘤,女性高发,发病率居女性恶性肿瘤的第4位[1],我国的发病人群以每年20%的速度持续增长,而根治性手术是治疗甲状腺癌疾病的主要手段。甲状旁腺体积小,位置较深,而且数目和位置常存在解剖学变异,给甲状腺和甲状旁腺手术术中探查并保护甲状旁腺造成了一定困难。尤其是在甲状腺癌根治术中,往往在中央区淋巴结的清扫容易误损伤甲状旁腺,致使术后暂时性或永久性低钙血症,极大地降低了病人的生活质量。因此,如何在甲状腺癌根治术中快速准确的识别甲状旁腺并予以保护,已经成外甲状腺外科医生重点关心的问题。     

金花茶叶中冲山茶苷的筛查、制备及抗肿瘤活性考察

[目的] 通过近红外光谱技术对不同产地金花茶叶中冲山茶苷（okicamelliaside）的含量进行考察，并对其进行制备与抗肿瘤活性考察。[方法] 采用高效液相色谱法（HPLC）测定金花茶中冲山茶苷的含量，获取其近红外光谱并建立其近红外定量模型。根据所建立的模型对不同产地的金花茶品质进行评价，选择高含量的样品进行冲山茶苷的提取制备及活性评价。[结果] 所建立的近红外检测方法快速方便，可直接采用金花茶叶进行含量测定，从而筛选出高含量样本。进一步通过大孔吸附树脂分离和高效液相制备得到高纯度的冲山茶苷。细胞毒性分析表明，所制备的冲山茶苷具有一定的抑制癌细胞生长的活性。[结论] 为金花茶的质量评价提供了可借鉴的质量标志物，并且为金花茶的开发利用提供了科学依据。     

红外热成像用于慢性足底筋膜炎诊断的临床研究

目的:观察慢性足底筋膜炎患者的足跟皮肤温度变化特点并探讨红外热成像检查是否可作为评估患者疼痛与功能状态的客观指标。方法:选取32例临床最终诊断为单侧慢性足底筋膜炎患者,依据患者有无症状分为有症状侧和无症状侧,将足跟部皮肤依据象限划分为5个感兴趣区(ROI),使用红外热像仪系统对患者双侧足底及手指进行红外热图像观察,并记录每个患者的足跟部ROI平均温度、视觉模拟评分(VAS)和足踝残疾指数(FADI)。分别比较有症状侧和无症状侧的足跟部5个ROI温度的差异,分析有症状侧5个ROI温度与VAS,FADI之间的关系,评估有症状侧5个ROI温度与疼痛、功能评分的相关性。结果:有症状侧和无症状侧的5个ROI的温度差异均有统计学意义(P<0.05),有症状侧足底各ROI的平均温度与VAS之间无相关性(P>0.05),有症状侧足跟部5个ROI的平均温度均与FADI之间有相关性(r=-0.55)。结论:慢性足底筋膜炎患者足跟部皮肤温度升高,且有症状侧足跟温度与临床评分之间具有相关性,红外热成像检查可以作为评价慢性足底筋膜炎患者与疼痛相关的功能指标。