The association between plant-based diet and erectile function in Chinese young healthy men: A population-based study

The study was designed and conducted to evaluate the plant-based diet status and its association with erectile function (EF) in Chinese young healthy men. From July 2018 to May 2020, 116 objectively proved physically and psychologically healthy men were selected. Clinical questionnaires, detailed physical examinations and blood tests were all assessed. An overall plant-based diet index (PDI) and a healthful plant-based diet index (hPDI) were developed from each participant to measure plant-based diet quantitatively. The EF was measured by both the International Index of Erectile Function-5 (IIEF-5) and the surrogated measures of endothelial function, peripheral levels of nitric oxide (NO) and E-selectin. In subjects, the mean PDI and hPDI were 53.8 ± 8.2 and 54.7 ± 8.9 respectively. Results of multivariate analysis showed that both PDI and hPDI were negatively associated with BMI (all p < .05), but had no relationships with NO, E-selectin, TT levels and IIEF-5 scores (all p > .05). In a subgroup of male population, Chinese young healthy men, the plant-based diet, measured by PDI and hPDI, was not related to erectile function. The population can adhere to plant-based diet to keep healthy without concerns of negative influence on erectile function.     

长链非编码RNA KLHL7-DT对人退变髓核细胞增殖和凋亡的影响及其相关机制

目的 探讨长链非编码RNA KLHL7-DT对人退变髓核细胞增殖和凋亡的影响及其相关机制。方法 选取2018年1月—2019年10月南京江北医院骨科脊柱骨折患者手术切除的正常椎间盘标本18例,其中男11例、女7例,年龄为22~46 （38.3±4.3）岁,PfirrmannⅠ级6例、Ⅱ级12例。取椎间盘标本常规分离、培养髓核细胞,使用10 ng/mL IL-1β处理髓核细胞获得退变髓核细胞。将退变髓核细胞分为沉默对照组、KLHL7-DT沉默组、过表达对照组、KLHL7-DT过表达组。4组细胞分别对应转染沉默对照序列、siRNA-KLHL7-DT沉默序列、过表达对照序列、KLHL7-DT过表达序列。取转染后4组退变髓核细胞采用5-乙炔基-2’脱氧尿嘧啶核苷（EdU）法检测细胞增殖情况,流式细胞术检测细胞凋亡情况,Western blot检测聚集蛋白聚糖（Aggrecan）、Ⅱ型胶原（Col Ⅱ）蛋白的表达情况。结果 （1）KLHL7-DT过表达组EdU染色阳性细胞/DAPI染色阳性比值（0.147±0.002）低于过表达对照组（0.203±0.007）,而KLHL7-DT沉默组比值（0.428±0.050）高于沉默对照组（0.240±0.032）,差异均有统计学意义（t=14.25、-5.44,P值均<0.05）。（2）KLHL7-DT过表达组细胞凋亡率（19.01%±0.41%）高于过表达对照组（14.38%±0.31%）,KLHL7-DT沉默组细胞凋亡率（16.08%±0.59%）低于沉默对照组（17.42%±0.36%）,差异均有统计学意义（t=15.69、3.36,P值均<0.05）。（3）Western blot结果显示,KLHL7-DT过表达组细胞Aggrecan和Col Ⅱ蛋白的相对表达量（分别为0.34±0.29、0.57±0.11）均低于过表达对照组（1.00±0.22、1.05±0.10）,KLHL7-DT沉默组Aggrecan和Col Ⅱ蛋白的相对表达量（分别为1.77±0.14、1.63±0.12）均高于沉默对照组（1.10±0.18、0.98±0.08）,差异均有统计学意义（t=3.10、5.54、-5.05、-7.66,P值均<0.05）。结论 上调KLHL7-DT的表达可抑制退变髓核细胞的增殖,促进退变髓核细胞的凋亡,其机制可能是通过调节细胞外基质Aggrecan、Col Ⅱ蛋白的合成,进而参与椎间盘退变的发展。     

Berberine plays a cardioprotective role by inhibiting macrophage Wnt5a/β-catenin pathway in the myocardium of mice after myocardial infarction

Myocardial infarction (MI) is one of the diseases with high fatality rate. Berberine (BBR) is a monomer compound with various biological functions. And some studies have confirmed that BBR plays an important role in alleviating cardiomyocyte injury after MI. However, the specific mechanism is unclear. In this study, we induced a model of MI by ligation of the left anterior descending coronary artery and we surprisingly found that BBR significantly improved ventricular remodeling, with a minor inflammatory and oxidative stress injury, and stronger angiogenesis. Moreover, BBR inhibited the secretion of Wnt5a/β-catenin pathway in macrophages after MI, thus promoting the differentiation of macrophages into M2 type. In summary, BBR effectively improved cardiac function of mice after MI, and the potential protective mechanism was associated with the regulation of inflammatory responses and the inhibition of macrophage Wnt5a/β-catenin pathway in the infarcted heart tissues. Importantly, these findings supported BBR as an effective cardioprotective drug after MI.     

Comparison between small renal masses 0-2 cm vs. 2.1-4 cm in size: A population-based study

BackgroundThe NCCN guidelines recommend active surveillance (AS) as an option for the initial management of cT1a 0-2 cm renal lesions. However, data about comparison between renal cell carcinoma (RCC) 0-2 cm vs. 2.1-4 cm are scarce.MethodsWithin the Surveillance, Epidemiology, and End Results database (2002–2016), 46,630 T1a N_anyM_any stage patients treated with nephrectomy were identified. Data were tabulated according to histological subtype, tumor grade (low [LG] vs. high [HG]), as well as age category and gender. Additionally, rates of synchronous metastases were quantified.ResultsOverall, 69.3 vs. 74.1% clear cell, 21.4 vs. 17.6% papillary, 6.9 vs. 6.8% chromophobe, 2.0 vs. 1.1% sarcomatoid dedifferentiation, 0.2 vs. 0.2% collecting duct histological subtype were identified for respectively 0-2 cm and 2.1-4 cm RCCs. In both groups, advanced age was associated with higher rate of HG clear cell and HG papillary histological subtype. In 0-2 cm vs. 2.1-4 cm RCCs, 13.8% vs. 20.2% individuals operated on harbored HG tumors and were more prevalent in males. Lower synchronous metastases rates were recorded in 0-2 cm RCC and ranged from 0 in respectively multilocular cystic to 0.9% in HG papillary histological subtype. The highest synchronous metastases rates were recorded in sarcomatoid dedifferentiation histological subtype (13.8% and 9.7%) in both groups.ConclusionsRelative to 2.1-4 cm RCCs, 0-2 cm RCCs harbored lower rates of HG tumors, lower rates of aggressive variant histology and lower rates of synchronous metastases. The indications and demographics of patients selected for AS may be expanded in the future to include younger and healthier patients.     

Effects of bariatric surgery on patients with obesity and polycystic ovary syndrome: a meta-analysis

BackgroundBariatric surgery is effective for polycystic ovary syndrome (PCOS), while the exact mechanism remains unclear.ObjectivesTo assess the impact of bariatric surgery on PCOS patients and further explore the possible mechanism.SettingA meta-analysis.MethodsWe searched PubMed, Web of Science, The Cochrane Library, and Embase to identify relevant studies published before November 2020.ResultsTwenty-one studies met our inclusion criteria, and we identified 552 patients with PCOS study. Results showed that the prevalence of preoperative PCOS, menstrual irregularity, hirsutism, type 2 diabetes (T2D), hypertension, infertility, and depression significantly decreased after bariatric surgery. Levels of total testosterone, fasting insulin, and luteinizing hormone (LH) decreased and estradiol increased, while levels of follicle-stimulating hormone (FSH) and LH/FSH did not show significant changes during the 3-month follow-up. There were decreases in testosterone and fasting insulin levels when the postoperative follow-up time was 6 months or ≥12 months. Levels of fasting blood glucose and triglycerides were significantly reduced after 6 months or ≥12 months of bariatric surgery. High-density lipoprotein (HDL) and sex hormone-binding globulin (SHBG) significantly improved ≥12 months after bariatric surgery.ConclusionSymptoms of PCOS and related complications are significantly alleviated after bariatric surgery. In addition, we found a significant improvement on anomalous secretion of gonadotropins, glucose metabolism, and lipid metabolism in patients with PCOS after bariatric surgery.     

单孔+1腹腔镜全胃切除、D2淋巴结清扫术

因技术难度大、操作复杂及缺乏三角牵拉等原因,单孔+1腹腔镜全胃切除+D2淋巴结清扫+食管空肠吻合术存在技术上的挑战,目前尚未得到广泛应用。在此报道单孔+1腹腔镜全胃切除、D2淋巴结清扫术的初步经验。采用之前报道的单孔多通道通加1个戳孔(5 mm)的方式进行手术。全胃切除、D2淋巴结清扫的手术过程与传统腹腔镜手术方法相同。通过绕脐切口取出标本,使用体外空肠空肠吻合术和体内食管空肠吻合术完成Roux-en-Y重建(overlap)。手术时间198 min,出血量30 ml,没有观察到术中和术后并发症,清扫淋巴结数目50枚。术后排气时间、恢复流质饮食和住院时间分别为第2、4、7天。