The oncogenic impact of RNF2 on cell proliferation,invasion and migration through EMT on mammary carcinoma

Mammary carcinoma (MC) is one of most common malignancy in women, and ring finger protein 2 (RNF2) possesses various roles in vast human tumors. In MC tissues as well as in cell lines RNF2 exhibited high expression, had significant association with tumor size, lymph node status, TNM stage, patients’ poor survival, and promoted cell proliferation, colony formation, cell migration and invasion of MC cell lines which was mediated by downregulation of E-cadherin protein. These data reveal that RNF2 protein plays a vital role in the development of MC and may be a potential therapy target of MC.     

Simultaneous metastasized primary unknown signet ring cell carcinoma of the cervical lymph node and mucoepidermoid carcinoma of the parotid gland as double cancers

Lymph node metastasis from signet ring cellcarcinoma (SRCC) primary unknown is extremely rare. We here report a case of primary-unknown SRCC that metastasized to the cervical lymph nodes, co-existing with mucoepidermoid carcinoma (MEC) of the parotid gland as a simultaneous double cancer. A 68-year-old female patient with right swollen cervical lymph nodes consulted our medical center. A diagnosis of bilateral cervical lymph node metastasis and a right parotid tumor was made. After bilateral neck dissection and right parotidectomy, the pathological diagnosis was SRCC of primary unknown with metastasis to the cervical lymph node and MEC of the parotid gland. Examination of the CRTC1/3-MAML2 fusion gene showed no relation between SRCC of primary unknown with metastasis to the cervical lymph node and MEC of the parotid gland. Ten months after the first treatment, there was recurrence in the left neck lymph node, and left neck dissection was performed. Fourteen months after the first treatment, the patient is alive and cancer-free. This case is the fourth report of SRCC with lymph node metastasis, and highlights the value of fusion gene detection to determine relatedness between simultaneous cancers. Moreover, such cases should be closely monitored for the subsequent appearance of distant metastases.     

超声乳化术中联合应用囊袋张力环对不同眼轴长度超高度近视合并白内障患者的临床疗效

目的探讨超声乳化术中联合囊袋张力环植入对不同眼轴长度(axial length,AL)超高度近视合并白内障患者的疗效和安全性。方法选取2016年10月至2019年6月于我院治疗的超高度近视合并白内障患者56例(56眼)。将患者随机分成两组观察组28例(28眼),其中AL为27~<30 mm者12眼,AL≥30 mm者16眼;对照组28例(28眼),其中AL为27~<30 mm者14眼,AL≥30 mm者14眼。观察组超声乳化术中联合应用囊袋张力环植入,对照组术中不植入张力环。术后随访3个月,检测各组患者视力、眼压、角膜内皮细胞计数、人工晶状体偏心量和倾斜度,同时对各组患者进行主观视觉质量量表评分。结果两组不同AL患者术后3个月最佳矫正视力均较术前升高(均为P<0.05);两组不同AL患者间比较差异则均无统计学意义(均为P>0.05)。两组不同AL患者术后3个月眼压和角膜内皮细胞计数均较术前降低(均为P<0.05);两组不同AL患者间比较差异则均无统计学意义(均为P>0.05)。术后1个月和3个月两组不同AL患者各自组间水平偏心量、垂直偏心量及总偏心量比较,差异均无统计学意义(均为P>0.05)。术后1个月和3个月两组27 mm≤AL<30 mm患者组间水平倾斜度、垂直倾斜度及总倾斜度比较,差异均无统计学意义(均为P>0.05)。术后1个月,观察组AL≥30 mm患者水平倾斜度和总倾斜度均低于对照组同级AL患者,差异均有统计学意义(均为P<0.05);垂直倾斜度比较差异无统计学意义(P>0.05)。术后3个月,观察组AL≥30 mm患者垂直倾斜度和总倾斜度均低于对照组同级AL患者,差异均有统计学意义(均为P<0.05);水平倾斜度比较差异无统计学意义(P>0.05)。术后3个月两组患者主观视觉质量评分均高于术前;两组间同级AL患者观察组均高于对照组,差异均有统计学意义(均为P<0.05)。术后随访3个月,两组患者均未发生眼压升高、角膜内皮失代偿、人工晶状体脱位、眼内炎、视网膜脱离等并发症。结论超声乳化术中联合应用囊袋张力环治疗超高度近视合并白内障安全稳定,并能获得理想的视觉质量。     

Direct Observation of a Cyclic Vinyl Polymer Prepared by Anionic Polymerization using N‐Heterocyclic Carbene and Subsequent Ring‐Closure without Highly Diluted Conditions

A 1:1 adduct of methyl sorbate (MS) and 1,3‐di‐tert‐butylimidazol‐2‐ylidene (NHCtBu) initiates anionic polymerization of a nonconjugated polar alkene, allyl methacrylate (AMA) in toluene at ?20 °C. After the monomer is consumed quantitatively using a bulky aluminum Lewis acid, methylaluminum bis(2,6‐di‐tert‐butyl‐4‐methylphenoxide) (MAD), as an additive, successive ring‐closure occurs without highly dilute conditions to give a cyclic poly(AMA) containing α‐terminal MS unit, and an M_n of 8.8 × 10³?58.5 × 10³ with a narrow molecular dispersity index (M_w/M_n = 1.1₄–1.3₇). The lack of a need for dilution is due to the fact that an α‐terminal NHCtBu group is acting as the counter cation for the propagating center in the polymerization. From ¹H NMR and matrix assisted laser desorption/ionization (MALDI‐TOF) mass spectra, combined with transmittance electron microscope (TEM) observation of a synthesized poly(AMA) with longer alkyl side chains prepared via a thiol‐ene click reaction, it is concluded that once the monomer is consumed, nucleophilic attack at the neighboring methine of the α‐terminal NHCtBu residue by the propagating anionic center causes ring‐closing to cyclic poly(AMA).     

Winograd surgery can be performed under partial digital block in patients with ingrown toenails

BackgroundWinograd procedures performed under a partial digital block with a single needle to the surgical side instead of the entire toe were not evaluated. This study aimed to examine the clinical results of classic ring block and partial digital block performed during Winograd procedures in cases of ingrown toenails.MethodsA total of 210 patients underwent Winograd surgery were divided into two groups according to the type of anesthesia used as follows: traditional ring block (TRB) and partial digital block (PDB). Visual analog scale (VAS) scores, Heifetz stage patient satisfaction levels, recurrence rates, and need for reoperation were recorded.ResultsCompared with the PDB group, the during operation VAS score was statistically significantly higher in the TRB group (p = 0001). There was no statistically significant difference between the groups in terms of postoperative satisfaction, recurrence (p = 0294), and reoperation rates (p = 0651).ConclusionsThis study is the first to show that adequate anesthetic efficacy can be achieved with a less invasive intervention for Winograd procedures.