花鲈的胚胎发育和仔鱼发育

本文描述了温度为１２．２－１４．０℃、盐度为２２‰的天然海水中用捕自浙江省宁海县和奉化市沿海的花鲈进行人工繁殖时，花鲈的胚胎发育和仔鱼发育情况。     

Synthesis and Neuroprotective Action of Xyloketal Derivatives in Parkinson’s Disease Models

Parkinson’s disease (PD) is the second most common neurodegenerative disease affecting people over age 55. Oxidative stress actively participates in the dopaminergic (DA) neuron degeneration of PD. Xyloketals are a series of natural compounds from marine mangrove fungus strain No. 2508 that have been reported to protect against neurotoxicity through their antioxidant properties. However, their protection versus 1-methyl-4-phenylpyridinium (MPP+)-induced neurotoxicity is only modest, and appropriate structural modifications are necessary to discover better candidates for treating PD. In this work, we designed and synthesized 39 novel xyloketal derivatives (1–39) in addition to the previously reported compound, xyloketal B. The neuroprotective activities of all 40 compounds were evaluated in vivo via respiratory burst assays and longevity-extending assays. During the zebrafish respiratory burst assay, compounds 1, 9, 23, 24, 36 and 39 strongly attenuated reactive oxygen species (ROS) generation at 50 μM. In the Caenorhabditis elegans longevity-extending assay, compounds 1, 8, 15, 16 and 36 significantly extended the survival rates (p < 0.005 vs. dimethyl sulfoxide (DMSO)). A total of 15 compounds were tested for the treatment of Parkinson’s disease using the MPP+-induced C. elegans model, and compounds 1 and 8 exhibited the highest activities (p < 0.005 vs. MPP⁺). In the MPP+-induced C57BL/6 mouse PD model, 40 mg/kg of 1 and 8 protected against MPP+-induced dopaminergic neurodegeneration and increased the number of DA neurons from 53% for the MPP+ group to 78% and 74%, respectively (p < 0.001 vs. MPP+ group). Thus, these derivatives are novel candidates for the treatment of PD.     

湖南林业知识产权事业现状与建议

分析了湖南林业知识产权事业的现状、面临的发展机遇,并就未来的发展提出了一些建议.     

香猪北方舍饲的合理化管理

香猪是贵州东部（中亚热带气候区）闭锁山区的猪种，引入黑龙江（寒温带大陆性季风气候区）饲养，必然经过一段风土驯化过程。几年来，在对香猪进行风土驯化的同时，我们对其在北方的舍饲合理化管理模式亦进行了探索。     

利用初乳诱导产后奶牛提早发情技术初探

应用产后1h和24h的初乳及三合激素诱导产后高产奶牛提早发情。结果表明,应用产后1h的初乳、产后24h的初乳及三合激素处理后,奶牛的发情率分别为90.00%、35%和100%;奶牛的配种受胎率分别为38.75%、41.67%和35.00%。应用产后1h的初乳处理产后高产奶牛的发情率较高,与三合激素处理的结果差异不显著(P>0.05);三种方法处理后奶牛的受胎率差异不明显,结果相似(P>0.05)。     

结球甘蓝胞质雄性不育系546A的选育

利用品比试验中发现的青花菜雄性不育单株为不育源,与近圆球形结球甘蓝自交系进行回交转育,育成了综合性状优良、配合力强、不育株率和不育度均达100%的甘蓝胞质雄性不育系及相应的保持系.并利用该不育系试配了几个杂种优势明显的甘蓝杂交新组合.     

Effect of FH535 on in vitro maturation of porcine oocytes by inhibiting WNT signaling pathway

Wingless‐int (WNT) signaling pathway is vital to modulate life processes, including cell fate determination, cell differentiation, cell proliferation, cell apoptosis and embryogenesis. To demonstrate the uncertain effect of the canonical WNT signaling pathway on oocyte maturation, immature porcine oocytes were collected and cultured in vitro with the WNT/β‐catenin inhibitor FH535. The concentrations of FH535 were selected as 0.00, 0.01, 0.10, 1.00 and 10.00 μmol/L. The results showed that the optimum concentration of FH535 on oocyte maturation was 1.00 μmol/L. In this concentration, the proportion of MII oocytes increased (P < 0.05). The rate of cleavage was the same with the control (P > 0.05), while the rate of blastocysts in the 1.00 μmol/L FH535 treated group was higher than that of control (P < 0.01). Additionally, the average number of nuclei in blastocysts raised significantly (P < 0.05). The inhibition of WNT could regulate expression of maturation‐related genes, including Cdc‐2, Bmp‐15, Gdf‐9 and Mos. In the 1.00 μmol/L FH535 treated group, the messenger RNA level of β‐catenin showed no significant change compared to the control (P > 0.05), but the protein abundance was decreased (P < 0.05). This study revealed that the inhibition of FH535 on the WNT signaling pathway could promote the maturation of porcine oocytes and altered gene expressions in vitro.     

柑桔脚腐病病原菌的分离与鉴定

脚腐病是柑桔树的重要病害之一。四川部分地区的调查表明,发病率轻者为10%—20%,重者达80%以上。该病不仅削弱树势,降低产量,而且会造成植株大量死亡。对其病原菌,国内外学者看法不一。左华清等(1985)认为是以镰刀菌为主,鲁显道(1984)、游标等(1987)认为是疫霉菌。1986—1989年,作者对该病原菌作了系统研究,现将部分结果简报如下。     

New Plant Growth Regulator Emistim C AS used on Watermelon in Field Evaluation

Most plant growth regulators available are synthesized and tend to be dangerous if used inappropriately.Emistim C AS is a natural plant growth regulator,with less side-effect.The research performed an assessment on Emistim C AS application in watermelon cultivation in a greenhouse.The results showed that 0.11％ Emistim C AS increased reducing sugar by 15.49％,soluble solid by 13.7％,Vc content by 3.72％,titratable acid by 18.1％,and yield per hectare by 18.01％,so that watermelon quality and yield were both improved.Emistim C AS can be widely promoted in watermelon cultivation in future.     

养肺消积分期疗法治疗晚期非小细胞肺癌的疗效观察

目的 观察养肺消积分期疗法对晚期（IIIb-IV期）非小细胞肺癌患者的临床疗效及生存的影响。方法 采用队列研究,选取符合入组标准非小细胞肺癌患者156例,其中综合治疗组82例,单纯西医组74例,综合治疗组在西医规范化疗的基础上采用养肺消积分期疗法按阶段治疗,以中位无疾病进展时间（M-PFS）、中位生存期（MST）为主要观察指标,中医临床症状积分变化、肿瘤控制率（DCR）、不良反应等为次要观察指标。结果 综合治疗组第1年、第2年总生存率分别较单纯西医组提高了23.9%、14.6%（P<0.05）;与单纯西医组比较,综合治疗组无疾病进展时间、中位生存期均提高了3个月（P<0.01）;综合治疗组瘤体控制率比单纯西医组提高13.2%（P<0.05）。结论 养肺消积分期疗法联合西医治疗能够提高晚期非小细胞肺癌患者的总生存期,延长中位无疾病进展时间、中位生存期;同时,可以改善患者中医临床症状积分,增加肿瘤控制率,不良反应小,具有增效减毒作用。