实验性脾气虚大鼠血清胃泌素、胃窦G细胞的变化及黄芪建中汤的干预

[目的]探讨脾气虚证大鼠血清胃泌素（gastrin,GAS）、胃窦黏膜胃泌素分泌细胞（G）的变化及黄芪建中汤的干预作用。[方法]以三因素复合的方法复制脾气虚证大鼠模型,随后分别以黄芪建中汤低、中、高剂量对脾气虚大鼠进行复健,在干预后不同时间段,分别检测血清木糖浓度、血清肌酸磷酸激酶活性、血清GAS水平及胃窦G细胞等指标。[结果]随用药时间的延长,各用药组上述指标逐步恢复;中、高剂量组用药21天时,与同期模型组比较,差异有显著性（P〈0.05或P〈0.01）;其中,高剂量组对G细胞数的改善作用,优于中剂量组（P〈0.05）。[结论]脾气虚证胃窦G细胞数量减少,释放GAS减少,血清GAS水平降低;黄芪建中汤对脾气虚大鼠有可靠的治疗作用,中、高剂量均为有效用药浓度,尤以高剂量更为理想。     

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.     

立体定向适形放射治疗肺癌的临床观察

目的观察立体定向适形放射治疗肺癌疗效和副反应。方法研究组采用立体定向适形放疗技术对40例Ⅰ-Ⅳ期肺癌病人进行治疗,单次靶区周边处方剂量2-6Gy,每周3-5次,总量60-72Gy;对照组采用常规放射治疗肺癌病人40例,DT1.8-2Gy/次,1次/天,总量60-70Gy;比较两组治疗后疗效、临床症状改善和不良反应。结果研究组治疗有效(CR PR)35例,占87.5%,其中CR8例占20%,PR27例占68%,临床症状改善率96.7%,放疗副反应发生率为13.5%;对照组:治疗有效(CR PR)31例,占77.5%,其中CR3例占7.5%,PR28例占70%,临床症状改善率为81.63%,放疗副反应发生率为25%。两组对比,研究组有效率高于对照组,但P>0.05无统计学意义。临床症状改善率研究组高于对照组,P<0.05,有统计学意义。放疗副反应发生率研究组明显低于对照组,P<0.001,有显著性差异。结论立体定向适形放射治疗肺癌有较好的近期疗效和症状改善率,与传统的常规放疗方法比较副反应明显减轻,患者易耐受,是一种有效、安全的治疗肺癌新的放疗方法。     

Cardioprotective effect of Chinese herbal medicine for anthracycline-induced cardiotoxicity in cancer patients: A meta-analysis of prospective studies

Background:To assess the benefits and harmful effects of Chinese herbal medicine (CHM) formulations in preventing anthracyclines (ANT)-induced cardiotoxicity.Method:The Cochrane Library, Pubmed and EMBASE databases were electronically searched for relevant randomized controlled trials (RCTs) published till December 2021 in English or Chinese-language, in addition to manual searches through the reference lists of the selected papers, and the Chinese Conference Papers Database. Data was extracted by 2 investigators independently.Result:Seventeen RCTs reporting 11 different CHMs were included in this meta-analysis. The use of CHM reduced the occurrence of clinical heart failure (RR 0.48, 95% CI 0.39 to 0.60, P < .01) compared to the control group. Data on subclinical heart failure in terms of LVEF values showed that CHM reduced the occurrence of subclinical heart failure (RR 0.47, 95% CI 0.35 to 0.62, P < .01) as well.Conclusion:CHM is an effective and safe cardioprotective intervention that can potentially prevent ANT-induced cardiotoxicity. However, due to the insufficient quality of the included trials, our results should be interpreted with cautious.     

Gingival metastasis from primary hepatocellular carcinoma: a case report

Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide; however, cases with metastasis to the oral cavity are extremely rare. Herein, we report a 68-year-old man who was diagnosed with HCC. Ten months after surgical removal of the right half of his liver, the patient developed gingival metastasis. Unfortunately, the patient died 4 months after the diagnosis. We discuss treatment options, pathological results, and disease prognosis. When a mandibular gingival mass is found, metastatic tumors should be considered in the differential diagnosis. In this regard, the patient’s medical history and physical examination are valuable indicators for the diagnosis of mandibular gingival metastasis. This case provides a basis for the clinical diagnosis of metastatic HCC involving the oral cavity.     

30 d-6°头低位卧床对人下肢脂肪体积的影响

目的 观察模拟失重对人下肢脂肪体积的影响,验证磁共振水脂分离成像技术在测量人下肢脂肪容积中的可行性.方法 14名男性健康志愿者,-6°头低位卧床30 d,使用磁共振水脂分离成像(Dixon)技术采集卧床前后的下肢横断面解剖图像,测量卧床前后下肢脂肪体积.结果 与卧床前相比,卧床后所有志愿者下肢总脂肪体积及大腿段脂肪体积显著增加(P＜0.001);小腿段脂肪体积呈增加趋势,但无统计学差异(P＞0.05).结论 使用MRI水脂分离成像可以清晰地显示卧床前后下肢脂肪体积的变化;-6°头低位卧床30 d后下肢脂肪体积明显增加.     

单孔腹腔镜子宫腺肌病病灶大部切除术临床应用

目的探讨单孔腹腔镜子宫腺肌病病灶大部切除术的可行性与安全性。 方法回顾性分析2018年3月至2020年6月在南京医科大学附属常州第二人民医院妇科接受单孔腹腔镜下子宫腺肌病病灶切除术＋子宫成形术的7例患者的临床资料并进行总结分析。 结果接受经脐单孔腹腔镜子宫腺肌病病灶大部切除术＋子宫成形术的7例患者手术均成功，术中未增加其他手术切口，无一例中转开腹手术。发生术中并发症的共2例，程度均较轻，术中及时给予相应处理，术后密切观察，恢复良好。所有患者术后恢复良好，均顺利出院，对切口愈合后的美容效果满意度高。出院后随访发现患者月经量明显减少，痛经症状明显改善，生存质量均显著提高。 结论严格把握手术适应证的情况下，单孔腹腔镜子宫腺肌病病灶大部切除术可能是安全、可行的。     

Hp感染的功能性消化不良腹痛症状与P物质、降钙素基因相关肽的关系

目的 初步探讨幽门螺杆菌(Hp)感染的功能性消化不良(FD)患者腹痛的发病机制.方法 根据罗马Ⅲ诊断标准,选择以上腹痛为临床表现的FD患者36例.胃镜下Hp快速尿素酶及C13尿素呼气试验将36例患者分为Hp(+)组(n=20)和Hp(-)组(n=16),同时选择12例健康人设立对照组.免疫组织化学法检测P物质(SP)、降钙素基因相关肽(CGRP)在各组组织中的密度值及明确SP、CGRP在细胞中的定位.视觉模拟评分将Hp感染的FD患者腹痛程度分为轻度、中度、重度,比较SP、CGRP在不同腹痛程度患者中的平均光密度值.结果 Hp(+)组SP、CGRP的平均光密度值高于Hp(-)组(SP:0.056±0.016 vs.0.027±0.009;CGRP:0.073±0.018 vs.0.034±0.009,P＜0.05).SP、CGRP在重度腹痛患者中的平均光密度值明显高于中度腹痛者(SP:0.074士0.011 vs.0.055±0.012;CGRP:0.094±0.005 vs.0.075士0.009,P＜0.05);中度腹痛患者的平均光密度值明显高于轻度腹痛者(SP:0.055±0.012 vs.0.043±0.008;CGRP:0.075±0.009 vs.0.054±0.010,P＜0.05).显微镜下观察到CGRP位于胃窦腺上皮细胞胞质内,SP同样位于胃黏膜细胞胞质.结论 Hp感染的FD患者腹痛与SP、CGRP有关.