Resveratrol Supplementation Confers Neuroprotection in Cortical Brain Tissue of Nonhuman Primates Fed a High-Fat/Sucrose Diet

Previous studies have shown positive effects of long-term resveratrol (RSV) supplementation in preventing pancreatic beta cell dysfunction, arterial stiffening and metabolic decline induced by high-fat/high-sugar (HFS) diet in nonhuman primates. Here, the analysis was extended to examine whether RSV may reduce dietary stress toxicity in the cerebral cortex of the same cohort of treated animals. Middle-aged male rhesus monkeys were fed for 2 years with HFS alone or combined with RSV, after which whole-genome microarray analysis of cerebral cortex tissue was carried out along with ELISA, immunofluorescence, and biochemical analyses to examine markers of vascular health and inflammation in the cerebral cortices. A number of genes and pathways that were differentially modulated in these dietary interventions indicated an exacerbation of neuroinflammation (e.g., oxidative stress markers, apoptosis, NF-κB activation) in HFS-fed animals and protection by RSV treatment. The decreased expression of mitochondrial aldehyde dehydrogenase 2, dysregulation in endothelial nitric oxide synthase, and reduced capillary density induced by HFS stress were rescued by RSV supplementation. Our results suggest that long-term RSV treatment confers neuroprotection against cerebral vascular dysfunction during nutrient stress

Minimal access surgery in newborns and small infants; five years experience

Aims and Objectives: The aim of this study was to assess and present the outcome (initial experience and lessons learnt) of minimally invasive surgery for various indications in neonates and small infants (< 5 kg) at a single medical centre. Materials and Methods: A retrospective analysis was performed on 65 patients (age day 2 to 10 months) managed with minimal access surgery (MAS) for various indications, between 2005 and 2010. We analyzed demographic information, procedures, complications, outcomes, and follow-up and overall feasibility of the procedure. Results: No serious complications except one death in congenital diaphragmatic hernia (CDH) (due to other comorbidities) occurred. Intra operative hypercarbia and hypoxia were observed more frequently in thoracoscopic procedures. Intra operative hypothermia was not common and was well tolerated. Conversion to open procedure (n = 5), post operative ileus (n = 3), port site infection (n = 5) were other complications. Conclusion: MAS in neonates and small infants is a technically demanding but a feasible choice available. Some prior experience in older children is required for safe and effective outcome. Good quality optics, video equipments and instruments are required for safe and effective procedure. Intra operative measurement of oxygen saturation and temperature, and diligent post operative ICU care are mandatory for safe and successful outcome