1-乙基-6-氟-1,4-二氢-4-氧代-7-(4-芳酰硫代氨甲酰基-1-哌嗪基)-3-喹啉羧酸的合成及抗菌作用

Thirteen new 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-aroyl-thiocarbamoyl- 1 piperazinyl)-3-quinoline carboxylic acids were prepared, Their structures were characterized by elemental analysis, IR, HNMR and MS spectra.Preliminary pharmacological tests indicated that some of compounds Ia～m possess strong inhibiting activity against Escherichia coli, Bacillus subtilis and Proteus at concentration of 100 μg/ml.     

用混合粘合剂碳糊电极测定丁螺环酮

用混合粘合剂碳糊电极测定丁螺环酮张正奇，曾鸽鸣，刘传桂，黎艳飞（湖南大学化学化工系，长沙４１００８２）碳糊电极无毒，制作方便，表面更新容易，应用电位范围广，在药物分析中已有应用［１～５］。我们在液体石腊中加入添加剂，组成混合粘合剂，可显著改善电极的检...     

Transplantation using hearts from primary pulmonary hypertensive donors for recipients with a high pulmonary vascular resistance

BACKGROUND: Transplantation for patients with a high pulmonary vascular resistance (PVR) carries an increased risk of mortality and right heart failure following heart transplantation and continues to be a major problem. We evaluated the use of hearts from patients who underwent heart and lung transplantation for primary pulmonary hypertension (PPH) as part of a domino procedure because these hearts have hypertrophied right ventricles used to increased pulmonary pressures, but could have a compromised left ventricle or irreversible damage of the right ventricle. METHODS: We reviewed 12 patients with PVR >4 Wood units who underwent orthotopic heart transplantation between 1989 and 1998 using hearts from donors with PPH as part of a domino procedure. RESULTS: We studied 10 men and 2 women, mean age 42.9 years. Mean PVR was 5.3 (range, 4-9) Wood units. Mean ischemia time was 85.3 minutes, and mean donor age was 32 years. Actuarial survival was 75% at 1 year and 75% at 5 years. In the early post-operative period, 3 patients had temporary arrhythmias, 2 required permanent pacemaker implantation, 1 had atrial fibrillation, and 1 had ventricular tachycardia that required defibrillator implantation. At a mean follow-up of 7.8 years, 2 patients had developed asymptomatic transplant coronary disease (both at 8.5 years after transplantation), 1 moderate and 1 very mild; the rest had none. Mean left ventricular ejection fraction at latest follow-up was 70.1% (range, 63%-78%). Right ventricular function assessed clinically and by echocardiography was adequate in the short and long term. CONCLUSIONS: Our results suggest that heart and lung recipients with PPH can provide useful donor hearts to patients with increased PVR and that these hearts function well in the intermediate and long term.     

路路通内酯的化学结构

用红外,质谱,¹H,¹³CNMR和¹H-¹³CCOLOC等光谱解析,确定了新化合物路路通内酯的结构为3-羰基-11α,12α-环氧-13β-氧-齐墩果-28β-酸-13,28-γ-内酯,命名为路路通内酯。     

同种异体黑素细胞移植治疗白癜风

0　引言　白癜风患者免疫紊乱 ,黑素细胞 (melanocyte,MC)异体移植有可能不被排斥 ,治疗如成功将有很大临床前景 [1 ] .探索同种异体黑素细胞移植后的效果很有意义 .1　病例报告　女 ,2 7岁 ,确诊白癜风 (稳定期 ) ,患者皮肤自幼出现色素脱失斑 ,逐渐增多扩大 . 1996年外用“敏白灵”,前2 mo有效 . 1999- 0 7外用补骨酯酊 ,日服 5 g· L- 1 硫酸铜 10m L和中药 1剂 ,转移因子 4m L ,sc,1· 2 d- 1 .皮损缩小 ,4mo后稳定 .用健康男青年环切的包皮培养 MC,第 4代大约80 %融合时 ,用 2 .5 g· L- 1 胰酶消化 5 min,加入含 2 0 0 g·L- 1小…     

Randomised controlled trial of hip protectors for the prevention of second hip fractures

OBJECTIVE: to assess whether the use of Safehip hip protectors would prevent second hip fractures among men and women living in the community. DESIGN: pragmatic randomised controlled trial. SETTING: people living in the community. PARTICIPANTS: men and women aged 70 years and over who had sustained one hip fracture and who were living in the community. RESULTS: 366 men and women who were either living outside residential care or were about to be discharged back home were randomised to receive three pairs of hip protectors or to act as controls. Approximately 34% of participants allocated to receive hip protectors wore them every day. After a median follow up of 14 months 8 participants had a second hip fracture with 6 in the intervention and 2 in the control group (Odds Ratio for second hip fracture=3.10, 95% confidence interval 0.62-15.58). Hip protectors had no effect on risk of other fractures or on falls. CONCLUSION: this trial does not suggest a benefit of the studied hip protector among people living outside residential accommodation.     

Photoperiod effects on hydroxyindole-O-methyltransferase activity in the pineal gland of chinook salmon (Oncorhynchus tshawytscha)

Juvenile chinook salmon (Oncorhynchus tshawytsch) were acclimated to photoperiods of 12L:12D, 0L:24D, or 24L:0D. Fish were sampled over a 24-hr period and pineal glands were analyzed for hydroxyindole-O-methyltransferase (HIOMT) activity and total protein. HIOMT specific activity (pmoles melatonin/hr/μg protein) exhibited a diel cycle in fish acclimated to 12L:12D and 0L:24D, with a peak at approximately 2400 hr and a low at approximately 1700 hr. The cycle was not apparent in fish acclimated to 24L:0D or in fish acclimated to 12L:12D but sampled with 18L:6D. In all cases where a cycle in HIOMT specific activity occurred, pineal protein content was found to cycle opposite in phase to that of specific activity. No significant change was seen in HIOMT activity (pmoles melatonin produced/hr/pineal gland) at any of the sampling times. Thus, we conclude that the cycles observed in HIOMT specific activity reflect changes in pineal gland protein content and not changes in HIOMT activity.     

Supporting public involvement in research design and grant development: a case study of a public involvement award scheme managed by a National Institute for Health Research (NIHR) Research Design Service (RDS)

Background

It is good practice for the public to be involved in developing health research. Resources should be available for researchers to fund the involvement of the public in the development of their grants.

Objective

To describe a funding award scheme to support public involvement in grant development, managed by an NIHR Research Design Service (RDS). Case examples of how the award contributed to successful grant applications and findings from a recent evaluation of the scheme are presented.

Design

A case study of resource provision to support public involvement activities in one region of England.

Participants

University and NHS‐based researchers, and members of the public.

Findings

Between 2009 and 2012, the RDS approved 45 public involvement funding awards (totalling nearly £19 000). These awards contributed to 27 submitted applications at the time of writing, of which 11 were successful (totalling over £7.5 million). The evaluation revealed difficulties encountered by some researchers when involving the public in grant development, which led to suggestions about how the scheme could be improved.

Conclusion

This award scheme represents an efficient method of providing researchers with resources to involve the public in grant development and would appear to represent good value for money.