A CLINICAL STUDY ON PROSTATE CANCER DIAGNOSIS WITH cDNA MACROARRAY

Objective: To diagnose prostatic cancer (CAP) with cDNA macroarray. Methods: Total RNA was isolated from patients with prostate cancer and from normal people, and poly(A) RNA was further purified. Then differentially expressed genes were analysed in CaP and normal prostate by cDNA macroarray system. Results: There were differential expressions of nine prostate-associated specific genes in CaP as compared with normal prostate, among which, 7 were significantly up-regulated and 2 were down-regulated. Conclusion: As a diagnostic approach at molecular level, the cDNA macroarray is supposed to elevate the detection rate of CaP.     

紫苏子油-β-环糊精包合物的制备研究

目的:对紫苏子油-β-环糊精包合物的制备工艺及其性能进行研究。方法:采用正交试验研究制备工艺,利用同步热分析仪对产物的性能进行表征,获得了脱包曲线研究产物的稳定性。结果:通过正交试验及其数据分析,确定制备紫苏子油-β-环糊精包合物的最优工艺为A3B2C1D2和A3B2C3D2,紫苏子油与环糊精的比例对包合率、收率的影响较大;TGA曲线和DSC曲线证明了包合物的生成,显示经过包合后热稳定性增强;脱包曲线显示包合物脱包速率降低,稳定性增强。结论:紫苏子油-β-环糊精包合物的差热、热重和脱包性质,以及包合反应的最佳工艺为紫苏子油的微粉化和制剂的研究、开发提供了依据。     

怀牛膝化学成分的研究

目的 对怀牛膝(Achyranthes bidentata B1．)的化学成分进行分离、鉴定。方法 采用硅胶柱色谱等分离手段；利用理化性质与波谱技术对化合物进行鉴定。结果 得到7个化合物，经鉴定为β-谷甾醇(β-sitosterol，1)，豆甾醇(stigmasterol，2)，齐墩果酸(oleanolic acid，3)，胡萝卜苷(daucosteml，4)，竹节参皂苷-1(PJS-1，5)，正丁基-β-D-吡喃果糖苷(n-butyl-β-D-fructopyranoside，6)，β-蜕皮甾酮(ecdystemne，7)。结论 化合物2、3为首次从怀牛膝中分离得到。     

头孢霉AL031真菌次生代谢产物的抗菌活性研究

采用滤纸片法 ,以 11株革兰氏阳性或阴性细菌为指示菌 ,对从头孢霉AL0 31真菌次生代谢产物中分离到的 14个化合物进行了体外抗细菌活性筛选。结果表明 :新化合物 :S ( ) 5 羟基蜂蜜曲菌素、S ( ) 7 羟基蜂蜜曲菌素和已知化合物 :蜂蜜曲菌素、2 ,4 -二羟基 3,6 二甲基苯甲酸、3,6 二羟基 2 ,4 二甲基苯甲酸、琥珀酸具有广谱的抗细菌活性 ,采用杯碟法 ,以三种细菌为指示菌 ,测定了具有抗菌活性的 6个化合物的最低抑菌浓度 (MIC) ,其MIC为 0 0 312 5～ 0 5mg/ml。     

Phacoemulsification in eyes with corneal opacities after deep anterior lamellar keratoplasty

To evaluate the maneuverability and efficacy of phacoemulsification and intraocular lens (IOL) implantation in eyes with corneal opacities after deep anterior lamellar keratoplasty (DALK), twelve eyes of 12 patients with mild to moderate corneal opacities after DALK and coexisting cataracts were analyzed retrospectively. Phacoemulsification and IOL implantation assisted with anterior capsule staining, as well as non-invasive optical fiber illumination, were performed on all eyes. No intraoperative or postoperative complications were noted. Mean corrected distance visual acuity (logMAR) improved from 1.24±0.17 to 0.73±0.22. Post-phaco intraocular pressure was maintained between 13 to 20 mm Hg in all cases throughout the follow-up period. Mean endothelial cell density decreased from 2258.42±205.94 to 1906.25±174.23 cells/mm2. Phacoemulsification and IOL implantation are safe and valid in eyes with mild to moderate corneal opacities after DALK and coexisting cataracts when assisted with anterior capsule staining and non-invasive optical fiber illumination.     

Wnt通路中散乱蛋白在儿童急性淋巴细胞白血病中的表达及意义

目的 探讨Wnt信号通路中散乱蛋白（DVL）对儿童急性淋巴细胞白血病（ALL）发病及预后的意义。方法 选取33例新发ALL患儿为病例组,根据危险度将ALL患儿分为低危组（n=14）、中危组（n=5）和高危组（n=14）;29例免疫性血小板减少症（ITP）患儿为对照组。采集病例组患儿初发及诱导治疗第33天时,以及对照组骨髓血各2 mL,采用实时荧光定量聚合酶链反应（qRT-PCR）检测骨髓血细胞DVL1、DVL2、DVL3 mRNA表达。结果 病例组初发期DVL1、DVL2、DVL3 mRNA表达水平高于缓解期及对照组（P < 0.05）,与对照组比较,病例组缓解期DVL2 mRNA水平升高（P < 0.05）。DVL2 mRNA表达水平在病例组初发期及缓解期均高于DVL 1、DVL 3 mRNA （P < 0.05）。高、中危组DVL1、DVL2 mRNA表达水平高于低危组（P < 0.05）。DVL2 mRNA表达水平在低、中、高危组均高于DVL1、DVL3 mRNA （P < 0.05）。结论 Wnt通路中DVL,尤其是DVL2的表达变化可能对儿童ALL的发病及预后有一定意义。     

PSTPIP1‐associated myeloid‐related proteinemia inflammatory syndrome: A rare cause of childhood neutropenia associated with systemic inflammation and hyperzincemia

Neutropenia in pediatric patients can be due to a variety of disorders. We describe two patients who underwent extensive evaluation over many years for arthralgias and moderate neutropenia of unclear etiology. Genetic testing identified a pathogenic variant in PSTPIP1 (proline‐serine‐threonine phosphatase‐interacting protein 1) in both patients. Markedly elevated inflammatory markers and zinc levels confirmed the rare diagnosis of PSTPIP1‐associated myeloid‐related proteinemia inflammatory (PAMI) syndrome, tailoring treatment. Neutropenia is common in patients with PAMI syndrome. Unique mutations seen in PAMI syndrome may account for the specific phenotypic features of this disorder.     

Early changes in corneal densitometry after FS-LASIK combined with accelerated corneal cross-linking for correction of high myopia

AIM: To observe the effects of femtosecond laser-assisted excimer laser in situ keratomileusis combined with accelerated corneal cross-linking (FS-LASIK Xtra) on corneal densitometry after correcting for high myopia. METHODS: In this prospectively study, 130 patients underwent FS-LASIK or FS-LASIK Xtra for high myopia. Their right eyes were selected for inclusion in the study, of which 65 cases of 65 eyes in the FS-LASIK group, 65 patients with 65 eyes in the FS-LASIK Xtra group. Patients were evaluated for corneal densitometry at 1, 3, and 6mo postoperatively using Pentacam Scheimpflug imaging. RESULTS: Preoperative differences in corneal densitometry between the FS-LASIK and FS-LASIK Xtra groups in different ranges were not statistically significant (P>0.05). Layer-by-layer analysis revealed statistically significant differences in the anterior (120 μm), central, and total layer corneal densitometry between the FS-LASIK and FS-LASIK Xtra groups at 1 and 3mo postoperatively (all P<0.05), the FS-LASIK Xtra group is higher than that of the FS-LASIK group. Analysis of different diameter ranges showed statistically significant differences between the FS-LASIK group and the FS-LASIK Xtra group at 1mo postoperatively in the ranges of 0–2, 2–6, and 6–10 mm (both P<0.05); At 3mo postoperatively, the FS-LASIK Xtra group is higher than that of the FS-LASIK group in the ranges of 0–2 and 2–6 mm (P<0.05). At 6mo postoperatively, there were no statistically significant differences in corneal densitometry between the FS-LASIK group and the FS-LASIK Xtra group in different diameter ranges (all P>0.05). CONCLUSION: There is an increase in internal corneal densitometry during the early postoperative period after FS-LASIK Xtra for correction of high myopia. However, the densitometry values decreased to the level of conventional FS-LASIK at 6mo after surgery, with the most significant changes observed in the superficial central zone.     

沙库巴曲缬沙坦对急性心肌梗死伴心力衰竭患者的临床疗效

目的 探讨沙库巴曲缬沙坦(LCZ696)对急性心肌梗死伴心力衰竭患者的临床疗效及安全性.方法 选取我院急性心肌梗死伴心力衰竭的住院患者120例,其中58例接受LCZ696和常规药物治疗作为干预组,另外62例作为对照组仅接受常规药物治疗.治疗6个月后随访,比较两组治疗前后NT-proBNP、肌酐、血钾水平以及心脏彩超结果...     

淫羊藿甙对家兔血管平滑肌细胞凋亡相关基因表达水平的影响

目的：观察葡萄糖调节蛋白基因78（GRP78）在动脉粥样硬化组织中的表达,探讨淫羊藿甙防治动脉粥样硬化的可能机制。方法：淫羊藿甙诱导培养的兔血管平滑肌细胞凋亡,组织原位杂交观察凋亡基因GRP78在兔斑块组织中的表达水平。结果：兔斑块组织原位杂交显示该基因片段在动脉粥样硬化斑块组织中表达水平增高。结论：葡萄糖调节蛋白78基因在AS细胞质中表达增高,可能是淫羊藿甙作用靶点之一,如上调该基因促进则可促进平滑肌细胞凋亡,将对动脉粥样硬化治疗产生一定作用。