References: Lecithin
J Indian Med Assoc. 1995 Jul;93(7):262-5.
The relationship of sonographic placental grading, biochemical pulmonary maturity and neonatal outcome in pregnancy-induced hypertension.
Jana N, Dhall K, Majumdar S, Suri S, Dhall GI.
Postgraduate Institute of Medical Education and Research, Chandigarh.
In a prospective study, the accuracy of placental grade in predicting pulmonary maturity was evaluated in 50 cases of pregnancy-induced hypertension (PIH) between 28 and 41 weeks of gestation. Pulmonary maturity was measured by lecithin/sphingomyelin (L/S) ratio and phosphatidylglycerol (PG) in amniotic fluid and by clinical development of respiratory distress syndrome (RDS) in the neonates. Fifty normotensive healthy primigravidae, who were matched for age and period of gestation, served as control. No difference (p > 0.05) in the placental grading was observed between normotensive and hypertensive pregnancies. The advancement of placental grade was found to be associated with an increase in L/S ratio and PG level in amniotic fluid. A mature placental grade (grade III) identified by real-time sonography corresponded to foetal lung maturity (L/S > or = 2.0, PG > or = 0.36 mg/dl) and absence of RDS in all cases. Hence, in PIH a grade III placenta appeared to be a reliable predictor of foetal lung maturity in the population examined.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=8576589&dopt=Abstract lecithin
JPEN J Parenter Enteral Nutr. 1995 Sep-Oct;19(5):369-72.
Effects of administration of different intravenous lipid emulsions on plasma LP-X concentrations in the rat.
Tomsits E, Rischak K, Molnar M, Filiczky I, Szollar L.
Department of Pathophysiology, Semmelweis University of Medicine, Budapest, Hungary.
BACKGROUND: Prolonged parenteral nutrition with lipid emulsions is essential to provide sufficient energy supply and to avoid essential fatty acid deficiency in preterm infants. However, chronic administration of lipid emulsions may lead to the development of pathological plasma lipid and LP-X concentrations. The aim of this study was to evaluate the relative importance of the phospholipid-triglyceride (PL-TG) ratio and the source of phospholipid in lipid emulsions, with respect to plasma lipid and LP-X levels. METHODS: Rats were infused for 9 days with IV lipid emulsion containing 10% (IL-10) or 20% (IL-20) egg lecithin or Lipofundin containing 20% soya lecithin (LF), with PL-TG ratios of .12, .06, and 0.75, respectively. RESULTS: LF significantly increased plasma triglyceride concentration (p < .01), whereas the rise in cholesterol levels observed with all emulsions was primarily caused by the increase in low-density lipoprotein cholesterol concentrations. The plasma phospholipid concentration was increased most by IL-10 (p < .005). There was a strong correlation between the PL-TG ratio of emulsions and the developing plasma phospholipid and LP-X concentrations (r2 = .91 and .96, respectively), despite the different origin of phospholipids in the emulsions, suggesting that it is the PL-TG ratio, rather than the source of phospholipids in lipid emulsions that primarily influences developing plasma lipid and LP-X concentrations. CONCLUSION: These results indicate that the administration of lipid emulsions with lower PL-TG ratios should be considered, to avoid the development of pathological plasma lipoprotein concentrations.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=8577013&dopt=Abstract lecithin
Tierarztl Prax. 1995 Aug;23(4):363-6.
[Investigations on egg yolk-free diluting medium for the cryopreservation of bull spermatozoa]
[Article in German]
Muller-Schlosser F, Hinsch E, Bohm J, Schill WB, Hinsch KD.
Zentralbesamungsstation Giessen eG.
On the basis of various laboratory researches and field experiments with 959 alternating first inseminations the traditional tris-extender and a yolk-free medium for semen freezing on soy lecithin base were compared in studies using a split-sample technique. Concerning important criteria such as non-return-rate, conservation quality, and standard of hygiene and practicability, the alternative product was found at least of equal quality. The renunciation of chicken yolk is to be seen as a general advantage. Here, the development of cryomedia has been enriched by a useful and sensitive new component. Apart from being competitive this product is also the first to conform to future demands in standardization through ISO-norm.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=8578568&dopt=Abstract lecithin
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