Red blood cell fatty acid composition in low-birth-weight infants fed either human milk or formula during the first months of life

The fatty acid composition of red blood cell (RBC) phospholipids in low-birth-weight infants was determined immediately after delivery and during the first 3 months of life. In the first study, infants were fed either human milk or two formulas with different fatty acid compositions but no long chain polyunsaturated fatty acids (LCPUFA). Both groups of formula-fed infants had significantly lower levels of docosahexaenoic acid (DHA) in RBC phospholipids compared with breast-fed infants. RBC phospholipid DHA was similar in the two formula groups at all ages. In the second study, infants received either a non-supplemented or a LCPUFA-supplemented formula. DHA remained stable in RBC phospholipids of infants supplemented with LCPUFA, whereas DHA decreased in RBC phospholipids of unsupplemented infants. These results confirm that adding DHA to formulas is more effective than increasing 18:3 n-3 content, in maintaining RBC phospholipid DHA levels.     

Scintigraphic diagnosis of tricuspid regurgitation

The authors describe a simple technique for diagnosis of tricuspid regurgitation. Red blood cells were labeled in vivo with 99mTc and 22 patients were studied with ECG-gated blood-pool imaging of the liver. A single region of interest was manually drawn around the liver and a time-activity curve obtained. The per cent change in liver counts during the cardiac cycle was found to be significantly higher in the 12 patients with tricuspid regurgitation (Group I) (mean, 4.04 +/- 1.6%; range, 1.3-21.4%) compared with the 10 controls (Group II) (mean, 0.35 +/- 0.16%; range, 0.013-1.3%) (p less than 0.05). Using a 1% change in liver counts as the criterion of a positive study, all 12 cases in Group I were diagnosed correctly, but there was one false positive in Group II; thus the sensitivity was 100% and the specificity 90%.     

急性有机磷农药中毒120例的救治

0　引言　近年来 ,我科在救治急性有机磷农药 (organophos-phorus,OP)中毒方面 ,积累了一些经验 ,现报告如下 .1　对象和方法1 .1　对象　本组 1 2 0例符合《急诊急救学》中的诊断标准 [1 ](男 2 9例 ,女 91例 ) ,年龄 1 .5～ 70岁 ,平均 2 8.6岁 .经口中毒 99例 ,经皮肤中毒 2 1例 .轻度中毒 1 5例 ,中度中毒 42例 ,重度 (含极重度 )中毒 6 3例 . 1 996年 39例 ,1 997年 43例 ,1 998年 38例 . DDV 79例 ,乐果 2 0例 ,混合性中毒 1 0例 ,水胺磷 3例 ,氧化乐果、 391 1、 1 0 5 9、对硫磷各 2例 ,敌百虫 1例 ,药名不详 1 0例 .服毒量 >2 5 …     

子宫颈妊娠1例

１　病例报告　患者,２８岁,因“停经３ｍｏ余,不规则阴道流血２ｍｏ余,于１９９９－０６－３０入院．患者１９９３年足月妊娠剖宫产一男婴．末次月经１９９９－０３－１２,０６－１４始阴道少量流血,无腹痛．０４－２８当地医院Ｂ超提示“不全流产”,未行清宫术．...     

神经节苷脂GM1对乙醇引起的神经膜磷脂脂肪酸参入变化的影响

研究神经节苷脂ＧＭ１对乙醇引起的神经膜磷脂的脂肪酸参入变化的影响。使用同位素标记的脂肪酸测定其对神经膜磷脂不同组分的参入率，比较ＧＭ１和乙醇对参入率的影响。慢性乙醇暴露发迹了不饱和脂肪酸「油酸，亚油酸，花生四烯酸和二十二碳六烯酸」参入到旨酰肌醇，磷脂酰丝氨酸和磷脂酰胆碱。