温阳化饮汤联合调制中频电疗法治疗多囊卵巢综合征高雄激素血症临床研究

目的：观察温阳化饮汤联合调制中频电疗法治疗多囊卵巢综合征高雄激素血症（PCOS-HA） 的临 床疗效。方法：采用EXCEL软件生成对应随机数字并以1∶1∶1的比例,将纳入观察的60例PCOS-HA患者分 为温阳化饮汤组、温阳化饮汤联合调制中频电治疗组（联合组）、西药组各20例。西药组予炔雌醇环丙孕酮片 治疗,温阳化饮汤组予温阳化饮汤治疗,联合组予温阳化饮汤联合调制中频电治疗,3组均连续治疗6个月经 周期。评估各组治疗前后月经周期变化、睾酮（T）、促黄体生成素（LH）、促卵泡刺激素（FSH）、Ferrimnan- Gallway（F-G） 评分、痤疮Rosefiled评分并进行比较。结果：治疗3个月,调经总有效率温阳化饮汤组35.0%, 联合组45.0%,西药组85.0%;治疗6个月,调经总有效率温阳化饮汤组65.0%,联合组75.0%,西药组90.0%; 治疗结束后3个月随访时,调经总有效率温阳化饮汤组50.0%,联合组70.0%,西药组30.0%。治疗结束后, 3 组T、LH/FSH、F-G评分、Rosefiled评分均较治疗前下降,差异均有统计学意义（P＜0.05）。治疗结束后, 3组组间T、LH/FSH、F-G评分比较,差异均无统计学意义（P＞0.05）。治疗结束后,3组间Rosefiled评分比 较,差异有统计学意义（P＜0.05）;组间两两比较,温阳化饮汤组、联合组Rosefiled 评分差异无统计学意 义（P＞0.05）,2组Rosefiled评分均低于西药组（P＜0.05）。结论：温阳化饮汤、温阳化饮汤联合调制中频电 治疗PCOS-HA均能调整生殖激素水平,改善临床症状,且联合治疗相较于西药炔雌醇环丙孕酮片,具有更好 的远期疗效。     

Acoustic Metamaterials for Low-Frequency Noise Reduction Based on Parallel Connection of Multiple Spiral Chambers

Acoustic metamaterials based on Helmholtz resonance have perfect sound absorption characteristics with the subwavelength size, but the absorption bandwidth is narrow, which limits the practical applications for noise control with broadband. On the basis of the Fabry–Perot resonance principle, a novel sound absorber of the acoustic metamaterial by parallel connection of the multiple spiral chambers (abbreviated as MSC-AM) is proposed and investigated in this research. Through the theoretical modeling, finite element simulation, sample preparation and experimental validation, the effectiveness and practicability of the MSC-AM are verified. Actual sound absorption coefficients of the MSC-AM in the frequency range of 360–680 Hz (with the bandwidth Δf₁ = 320 Hz) are larger than 0.8, which exhibit the extraordinarily low-frequency sound absorption performance. Moreover, actual sound absorption coefficients are above 0.5 in the 350–1600 Hz range (with a bandwidth Δf₂ = 1250 Hz), which achieve broadband sound absorption in the low–middle frequency range. According to various actual demands, the structural parameters can be adjusted flexibly to realize the customization of sound absorption bandwidth, which provides a novel way to design and improve acoustic metamaterials to reduce the noise with various frequency bands and has promising prospects of application in low-frequency sound absorption.     

Does losing money truly hurt? The shared neural bases of monetary loss and pain

Both monetary loss and pain have been studied for decades, but evidence supporting the relationship between them is still lacking. We conducted a meta‐analysis to explore the overlapping brain regions between monetary loss and pain, including physical pain and social pain. Regardless of the type of pain experienced, activation of the anterior insula was a shared neural representation of monetary loss and pain. The network representation pattern of monetary loss was more similar to that of social pain than that of physical pain. In conclusion, our research provided evidence of the common neural correlates of monetary loss and pain.     

Determinants of Complex Regional Pain Syndrome Type I among Radial Head Fracture Patients with Unilateral Arthroplasty

ObjectiveThis study aims to assess the proportions of complex regional pain syndrome type I (CRPS I) in radial head fracture patients undergoing unilateral arthroplasty and to explore associated factors.MethodsThis is a prospective observational study. From March 2016 to May 2019, a total of 221 adult patients with radial head fracture patients were included in consecutive studies and completed the 1‐year follow‐up. All patients were treated by unilateral arthroplasty. At each follow‐up visit, the visual analogue scale was used to measure patients'' pain level. Occurrence of CRPS I, which was diagnosed by Budapest criteria, was the main outcome collected at baseline and the 1‐, 3‐, 6‐, and 9‐month follow‐ups. The baseline data were collected before surgery and included demographic and clinical data. Independent t‐tests and χ ² tests were used as univariate analyses to compare the baseline data of patients with and without CRPS I. Multivariate analysis (Backword‐Wald) was used to identify factors independently associated with CRPS I.ResultsThe proportion of CRPS I cases among radial head fracture patients undergoing unilateral arthroplasty was 11% (n = 24). A total of 19 (79%) patients were diagnosed with CRPS I within 1 month after surgery. Multivariable logistic regression analysis revealed that female gender (odds ratios [OR]: 1.537; 95% confidence interval [CI]: 1.138–2.072), age younger than 60 years (OR: 1.682; 95% CI: 1.246–2.267), moderate and severe Mayo Elbow Performance Score (MEPS) pain (OR: 3.229; 95% CI: 2.392–4.351) and anxiety (OR: 83.346; 95% CI: 61.752–112.320) were independently associated with CRPS I.ConclusionsThis exploratory study reported that the incidence of CRPS I developing after radial head arthroplasty was 11%. Female sex, younger age, moderate and severe MEPS pain and anxiety patients seems more likely to develop CRPS I.     

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.     

A Warhead Substitution Study on the Coronavirus Main Protease Inhibitor Nirmatrelvir

The SARS-CoV-2 pandemic is currently causing an unprecedented global health emergency since its emergence in December 2019. In December 2021, the FDA granted emergency use authorization to nirmatrelvir, a SARS-CoV-2 main protease inhibitor, for treating infected patients. This peptidomimetic is designed with a nitrile warhead, which forms a covalent bond to the viral protease. Herein, we investigate nirmatrelvir analogs with different warheads and their inhibitory activities. In addition, antiviral activities against human alphacoronavirus 229E was also investigated along with a cell-based assay. We discovered that the hydroxymethylketone and ketobenzothiazole warheads were equipotent to the nitrile warhead, suggesting that these analogs can also be used for treating coronavirus infections.     

淄博市生活饮用水中硝酸盐暴露及其健康风险的时空分布特征

目的 对饮用水硝酸盐进行健康风险评估,为水质干预决策提供技术依据。 方法 对2016~2020年淄博市2 575份城乡饮用水样品检测硝酸盐含量,采用我国《化学物质环境健康风险评估技术指南》(WS/T 777-2021)的环境健康风险评价模型,分析不同年度、不同监测点类型、不同水源、不同处理方式的硝酸盐含量和非致癌健康风险的时空分布特征。 结果 2016~2020年共检测水样2 575份,硝酸盐超标率为10.76%。饮用水硝酸盐含量具有空间聚集性,高值主要集中在沂源县中部和东部、博山区西南部,低值集中在高青县和桓台县。饮用水硝酸盐含量和非致癌健康风险总体呈现逐年升高趋势,农村水高于城区水、地下水高于地表水、未处理水高于处理水。5年总体平均非致癌风险为0.21,对人体产生的非致癌风险较低;最高非致癌风险为1.99,主要集中在沂源县,对人体存在长期暴露的非致癌健康风险。 结论 淄博市局部区域饮用水硝酸盐污染较严重,存在非致癌健康风险,应引起关注并采取水质干预措施。     

乡村中医师继续教育中开设STS课程的调查分析

目的探讨完善乡村中医师继续教育中开设《科学、技术与社会》（Science and Technology Studies,STS）课程的建议。方法以调查问卷法与个别访谈法为主,共调查103位乡村中医师。结果87．12％的中医师认为STS课程设置比较全面;95,19％认为授课方式应该多种方式有机结合;86．45％认为STS课程效果较好;89．58％认为收获多或较多。结论可从三个方面即提高教师STS素质,完善STS课程内容。采取多种教学形式不断完善STS课程教学。