Objective To investigate the degree of retinal developmen t in pret erm infants and compare the electroretinograms between preterm and fullterm in fants. Methods Flash electroretinogram (ERG) were obtained wit h contact lens el ectrodes in one eye from ten preterm infants (10 eyes) and twenty full-term inf a nts (20 eyes) in seven days after birth. The rod cell, cone cell, maximal combi nation, oscillatory potentials, and 30 Hz flicker responses were recorded. Results Compared with the full-term infants, the implicit time of rod cell respon s e (t=3.216，P=0.003) was longer and the amplitudes were lower (t=6.0 50，P=0.000) in the preterm infants; the difference of implicit time of maximal response was not significant (t=0.465，P=0.650; t=1.068，P=0.295), while th e amplitudes dec reased (t=6.584, P=0.000; t=6.649, P=0.000). The a- and b-wav e implicit time of cone response was not differed much between the two groups (t=0.077, P=0.939; t=0.935,P=0.358); the amplitudes was obvious lower in preterm group (t =3 .417，P=0.002；t=6.310，P=0.000); the difference of implicit t ime of 30 Hz flic ker betw een the two groups was not significant (t=3.745，P=0.001). The difference of b/a value of maximal combination response was not obvious between the two groups ( t=0.215, P=0.831). Conclusions The development of retinal function is slower in preterm infants than that in full-term ones．
Objective To detect expression of NF-κB in the inner retina and in vestigate the inhibitoryeffect of pyrrolidine dithiocarbamate on retinal neovascularization in rats. Methods The rat models with retinopathy were set up un der the hypoxia condition, and fluorescein fundus angiography (FFA) was used to observe the retinal neovascularization. The expressions of NF-κB in the inner retina in rats with and without neovascularization were detected by immunohisto chemical method. PDTC was intraperitoneally injected in rats with neovascularization to observe the expression of NF-κB in the inner retina and the effect on retinal neovascularization. Results Hypoxia induced NF-κB activation in the retinal glial cells and endothelial cells. But immuno-staining intensity for NF-κB and adhesion molecules were reduced by PDTC intraperitoneal injection. Retin al angiogenesis in rats were suppressed effectively (P＜0.05). Conclusions NF-κB activation correlates with retinal neovascularization closely. PDTC may inhibit the NF-κB activation and prove beneficial in the treatment of ischemic neovascularization. (Chin J Ocul Fundus Dis，2003，19：201-268)
Objective To explore the effect of antihypertensive treatment on target-organ damage in very elderly patients (gt;80 years). Methods One hundred and sixty-seven very elderly hypertensive patients were randomized into two groups, i.e. anti-hypertension treatment group and placebo-control group. All the patients received echocardiographic examination of left ventricular mass index, laboratory tests of urinary creatinine and urinary albumin and 24-hour ambulatory blood pressure monitoring 2 months after placebo washout period and at the end of the one year treatment, respectively. Results After treatment, the improvement in all the dynamic blood pressure parameters except daytime diastolic blood pressure and heart rate(24 h, daytime and night time), were significantly better than that of placebo-control group(Plt;0.05).The improvement in left ventricular and renal functional parameters were significantly better than that of placebo-control group(Plt;0.05). Conclusion Anti-hypertension treatment may significantly improve left ventricular pachynsis and renal function damage in very elderly hypertensive patients.
According to the evidence pyramid model, systematic review (SR)/meta-analysis (MA) is one of the essential sources with a high level of clinical evidence. A high-quality SR/MA can effectively guide clinical decision-making and practice. The preferred reporting items for systematic reviews and meta-analyses extension for Chinese herbal medicines (PRISMA-CHM) were officially published in 2020. In this study, based on research cases, the features of PRISMA-CHM were interpreted in detail, so as to help domestic users accurately grasp the details of the reports, in order to improve the quality of the reports of SR/MA of traditional Chinese medicine.