PubMed · 13972557
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S PUR. 1963. [Hyperphoria alternans].. https://pubmed.ncbi.nlm.nih.gov/13972557/
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The development of rice fertility is a complex process, which is precisely regulated by numerous genes. In this study, we cloned and characterized OsPAIP11, a PABP-interacting protein that functions as an auxiliary factor in translation initiation. The ospaip11 exhibited multiple defects, including impaired callose synthesis, delayed tapetum apoptosis, and abnormal pollen wall development, which are essentially consistent with the phenotype of the allelic mutant dcet1. Subcellular localization analysis revealed that OsPAIP11 is localized in both the cytoplasm and nucleus. Interestingly, further investigation demonstrated that the RRM2 domain of OsPAIP11 exhibits transcriptional activation activity. Moreover, OsPAIP11 directly binds to the promoter of the callose synthesis-related genes GLUCAN SYNTHASE-LIKE 5 (OsGSL5) and OsGAMYB, thereby regulating their transcription and influencing callose biosynthesis during pollen development. Additionally, OsPAIP11 also interacts with the translation initiation factor and auxiliary factors. These findings suggest that OsPAIP11 modulates male fertility primarily by regulating the transcription of callose synthesis-related genes and may also participate in the translation process.
BACKGROUND: Use of icodextrin has the potential of several clinical benefits, including reduced systemic and peritoneal glucose exposure and improvement in fluid status as a result of better ultrafiltration. This article explores the recent evidence for such benefits. METHODS: Systematic literature review to include all randomized controlled trials and longitudinal observational cohort studies of peritoneal dialysis patients treated with icodextrin. Secondary, comparative analysis of the relationship between increased ultrafiltration and preservation of residual urine volume. RESULTS: Several studies provide support for clinically relevant improvements in biocompatibility. In particular, improved glucose control in diabetics and hyperinsulinaemia and gastric emptying in non-diabetics indicate systemic benefits. Evidence for improved lipid profiles of blood pressure control is less compelling. The increases in net ultrafiltration, especially in high transport patients, in whom glucose solutions are associated with fluid reabsorption in the long dwell, are associated with sustained reductions in the extra-cellular fluid volume. For a given increase in ultrafiltration, residual urine volume is relatively well-preserved with icodextrin, but severe volume depletion puts residual renal function at risk. Considerable variability in achieved ultrafiltration is observed. CONCLUSION: The potential clinical benefits of icodextrin are increasingly supported by observational and randomized studies. Further research is required in order to understand the between-patient variability in the efficacy of ultrafiltration achieved with icodextrin, which might in part be explained by differences in metabolism.
INTRODUCTION: Intra-abdominal adhesions occur in many patients following major abdominal surgery and represent a serious burden to patients and healthcare providers. The multicentre ARIEL (Adept Registry for Clinical Evaluation) Registry was established to gather clinical experiences in the use of icodextrin 4% solution, an approved adhesion-reduction agent, during routine general surgery. PATIENTS AND METHODS: General surgeons from five European countries completed anonymised data collection forms for patients undergoing laparotomy or laparoscopy. Surgeons recorded patient demographics, use of icodextrin 4% solution and adverse events, and made subjective assessments of ease of use and patient acceptability with the agent. RESULTS: The general surgery registry included 1738 patients (1469 laparotomies, 269 laparoscopies). Leakage of fluid from the surgical site did not appear to be affected by icodextrin 4% solution and was classified as 'normal' or 'less than normal' in most patients (laparotomies 86%, laparoscopies 88%). Overall, satisfaction with ease of use was rated as 'good' or 'excellent' by the majority of surgeons (laparotomies 77%, laparoscopies 86%). Patient acceptability was also good, with ratings of 'as expected' or 'less than expected' in most cases for both abdominal distension (laparotomies 90%, laparoscopies 91%) and abdominal discomfort (laparotomies 91%, laparoscopies 93%). Adverse events occurred in 30.6% of laparotomy patients and 16.7% of laparoscopy patients; the most common events were septic/infective events (4.2% and 3.4% in the laparotomy and laparoscopy groups, respectively). Anastomotic wound-healing problems were reported in 7.6% of patients in the subset of laparoscopy patients undergoing anastomotic procedures (n = 66). DISCUSSION: Volumes of icodextrin 4% solution used as an irrigant and instillate were in line with recommendations. Surgeons considered the agent to be easy to use and acceptable to patients. The reported frequencies of adverse events were in line with those published in the literature for surgical procedures, supporting the good safety profile of this agent. CONCLUSIONS: Icodextrin 4% solution can be used in a wide range of surgical procedures. In combination with good surgical technique, it may play an important role in adhesion reduction.