OCT观察玻璃体黄斑牵拉综合征自发愈合1例

1临床资料患者,女性,57岁,2018年3月因左眼视力下降,伴有视物变形7 d于沧州市中心医院就诊,既往体健。眼科检查:视力右眼1.0,左眼0.2,右眼前后节未见明显异常,左眼前节未见明显异常,眼底黄斑中心凹水肿。光学相干断层成像术(optital coherence tomography,OCT)扫描黄斑区显示中心凹处膜状反射牵拉,层间分离,视网膜组织局部完全断裂(见图1)。

Neuroprotective mechanisms of rutin for spinal cord injury through anti-oxidation and anti-inflammation and inhibition of p38 mitogen activated protein kinase pathway

Rutin has anti-inflammatory, antioxidant, anti-viral, anti-tumor and immune regulatory effects. However, the neuroprotective effects of rutin in spinal cord injury are unknown. The p38 mitogen activated protein kinase （p38 MAPK） pathway is the most important member of the MAPK family that controls inflammation. We assumed that the mechanism of rutin in the repair of spinal cord injury is associated with the inhibition of p38 MAPK pathway. Allen’s method was used to establish a rat model of spinal cord injury. The rat model was intraperitoneally injected with rutin （30 mg/kg） for 3 days. After treatment with rutin, Basso, Beattie and Bresnahan locomotor function scores increased. Water content, tumor necrosis factor alpha, interleukin 1 beta, and interleukin 6 levels, p38 MAPK protein expression and caspase-3 and -9 activities in T8–9 spinal cord decreased. Oxidative stress related markers superoxide dismutase and glutathione peroxidase levels increased in peripheral blood. Rutin exerts neuroprotective effect through anti-oxidation, anti-inflammation, anti-apoptosis and inhibition of p38 MAPK pathway.

Rotarex mechanical thrombectomy in renal artery thrombosis:A case report

BACKGROUND Acute renal artery thrombosis is a relatively rare disease.Early diagnosis and emergent treatment can prevent the loss of renal function and the development of hypertension.CASE SUMMARY We report a patient with acute renal artery thrombosis who presented to our hospital with acute-onset right flank pain and was treated by percutaneous mechanical thrombectomy using the Rotarex device.After 2 mo,right kidney function had recovered slightly.CONCLUSION Renal artery thrombosis may lead to loss of renal function and the development of hypertension.Rotarex mechanical thrombectomy may be a viable treatment option for rapid recanalization of the renal artery in patients with renal artery thrombosis.

Nutritional status efficacy of early nutritional support in gastrointestinal care: A systematic review and meta-analysis

BACKGROUND Gastrointestinal surgery is a complicated process used to treat many gastrointestinal diseases,and it is associated with a large trauma:Most patients often have different degrees of malnutrition and immune dysfunction before surgery and are prone to various infectious complications during postoperative recovery,thus affecting the efficacy of surgical treatment.Therefore,early postoperative nutritional support can provide essential nutritional supply,restore the intestinal barrier and reduce complication occurrence.However,different studies have shown different conclusions.AIM To assess whether early postoperative nutritional support can improve the nutritional status of patients based on literature search and meta-analysis.METHODS Articles comparing the effect of early nutritional support and delayed nutritional support were retrieved from PubMed,EMBASE,Springer Link,Ovid,China National Knowledge Infrastructure,China Biology Medicine databases.Notably,only randomized controlled trial articles were retrieved from the databases(from establishment date to October 2022).The risk of bias of the included articles was determined using Cochrane Risk of Bias V2.0.The outcome indicators,such as albumin,prealbumin,and total protein,after statistical intervention were combined.RESULTS Fourteen literatures with 2145 adult patients undergoing gastrointestinal surgery(1138 patients(53.1%)receiving early postoperative nutritional support and 1007 patients(46.9%)receiving traditional nutritional support or delayed nutritional support)were included in this study.Seven of the 14 studies assessed early enteral nutrition while the other seven studies assessed early oral feeding.Furthermore,six literatures had"some risk of bias,"and eight literatures had"low risk".The overall quality of the included studies was good.Meta-analysis showed that patients receiving early nutritional support had slightly higher serum albumin levels,than patients receiving delayed nutritional support[MD(mean difference)=3.51,95%CI:-0.05 to 7.07,Z=1.93,P=0.05].Also,patients receiving early nutritional support had shorter hospital stay(MD=-2.29,95%CI:-2.89 to-1.69),Z=-7.46,P<0.0001)shorter first defecation time(MD=-1.00,95%CI:-1.37 to-0.64),Z=-5.42,P<0.0001),and fewer complications(Odd ratio=0.61,95%CI:0.50 to 0.76,Z=-4.52,P<0.0001)than patients receiving delayed nutritional support.CONCLUSION Early enteral nutritional support can slightly shorten the defecation time and overall hospital stay,reduce complication incidence,and accelerate the rehabilitation process of patients undergoing gastrointestinal surgery.

High specific surface area inherited from sea-urchin-like AACH clusters prepared by a novel spray precipitation

High specific surface of(α/γ)-Al_(2)O_(3)powder is essential for its applications in adsorbents,catalysts or ceramic raw materials.However,the phase transformation from precursor to oxide powder inevitably experiences the hightemperature calcination process which coarsens or agglomerates the particles,and then loses the high dispersity and activity.