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docosahexaenoic acid oestrogen

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https://www.readbyqxmd.com/read/25849092/the-therapeutic-effects-of-docosahexaenoic-acid-on-oestrogen-androgen-induced-benign-prostatic-hyperplasia-in-rats
#1
Chao Wang, Fei Luo, Ying Zhou, Xiaoling Du, Jiandang Shi, Xiaoling Zhao, Yong Xu, Yan Zhu, Wei Hong, Ju Zhang
Benign prostatic hyperplasia (BPH) is one of the major disorders of the urinary system in elderly men. Docosahexaenoic acid (DHA) is the main component of n-3 polyunsaturated fatty acids (n-3 PUFAs) and has nerve protective, anti-inflammatory and tumour-growth inhibitory effects. Here, the therapeutic potential of DHA in treating BPH was investigated. Seal oil effectively prevented the development of prostatic hyperplasia induced by oestradiol/testosterone in a rat model by suppressing the increase of the prostatic index (PI), reducing the thickness of the peri-glandular smooth muscle layer, inhibiting the proliferation of both prostate epithelial and stromal cells, and downregulating the expression of androgen receptor (AR) and oestrogen receptor α (ERα)...
July 15, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/23795744/oestrogens-as-modulators-of-neuronal-signalosomes-and-brain-lipid-homeostasis-related-to-protection-against-neurodegeneration
#2
REVIEW
R Marin, V Casañas, J A Pérez, N Fabelo, C E Fernandez, M Diaz
Oestrogens trigger several pathways at the plasma membrane that exert beneficial actions against neurodegenerative diseases, such as Alzheimer's disease and Parkinson's disease. Part of these actions takes place in lipid rafts, which are membrane domains with a singular protein and lipid composition. These microdomains also represent a preferential site for signalling protein complexes, or signalosomes. A plausible hypothesis is that the dynamic interaction of signalosomes with different extracellular ligands may be at the basis of neuronal maintenance against different neuropathologies...
November 2013: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/22322885/a-fatty-acid-binding-protein-7-rxr%C3%AE-pathway-enhances-survival-and-proliferation-in-triple-negative-breast-cancer
#3
COMPARATIVE STUDY
Rong-Zong Liu, Kathryn Graham, Darryl D Glubrecht, Raymond Lai, John R Mackey, Roseline Godbout
FABP7 has been implicated in tumour cell proliferation, cell migration, and poor prognosis in patients with high-grade astrocytoma and melanoma. In this study, we examine FABP7 expression in a cohort of 176 primary breast cancers by gene profiling and tissue microarray immunostaining. We show that FABP7 is significantly up-regulated in triple-negative breast cancer. Elevated FABP7 levels are associated with poor prognosis, absence of oestrogen and progesterone hormone receptors (ER, PR) and HER2, increased cell proliferation, and high tumour grade...
November 2012: Journal of Pathology
https://www.readbyqxmd.com/read/22007691/effects-of-oestradiol-on-brain-lipid-class-and-fatty-acid-composition-comparison-between-pregnant-and-ovariectomised-oestradiol-treated-rats
#4
COMPARATIVE STUDY
N Fabelo, V Martin, C González, A Alonso, M Diaz
To determine the involvement of physiological doses of oestradiol on brain lipid composition, we have analysed the lipid class and fatty acid composition of phospholipids in the brain from pregnant and 17β-oestradiol-treated rats. Rats were randomly divided into three groups: ovariectomised control (OVX + VEH), ovariectomised oestradiol-treated (OVX + E(2) ) and pregnant (PREG) rats. Rats from the OVX + E(2) group were injected daily with different doses of 17β-oestradiol mimicking the plasma levels observed during pregnancy...
February 2012: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/20668323/short-term-pregnancy-hormone-treatment-of-n-methyl-n-nitrosourea-induced-mammary-carcinogenesis-in-relation-to-fatty-acid-composition-of-serum-phospholipids-in-female-lewis-rats
#5
Yen-Chang Lai, Kei Hamazaki, Katsuhiko Yoshizawa, Ayako Kawanaka, Maki Kuwata, Sayaka Kanematsu, Tomohito Hamazaki, Hideho Takada, Airo Tsubura
AIM: Short-term oestrogen and progesterone treatment (STEPT) mimics the pregnancy hormone milieu. This study compared the development of N-methyl-N-nitrosourea (MNU)-induced mammary cancer in female Lewis rats that received STEPT in early or later life. MATERIALS AND METHODS: Rats in Groups 1 and 2 received a single intraperitoneal injection of 50 mg/kg MNU at 4 weeks old. Pellets containing 0.5 mg 17beta-estradiol and 32.5 mg progesterone (EP) were subcutaneously implanted in rats in Group 1 during 6-9 weeks old...
July 2010: In Vivo
https://www.readbyqxmd.com/read/16828546/metabolism-of-alpha-linolenic-acid-in-humans
#6
REVIEW
G C Burdge
Alpha-linolenic acid (18:3n-3) is essential in the human diet, probably because it is the substrate for the synthesis of longer-chain, more unsaturated n-3 fatty acids eicosapentaenoic acid (20:5n-3) and docosahexaenoic acid (22:6n-3) which are required for tissue function. This article reviews the recent literature on 18:3n-3 metabolism in humans, including fatty acid beta-oxidation, recycling of carbon by fatty acid synthesis de novo and conversion to longer-chain polyunsaturated fatty acids (PUFA). In men, stable isotope tracer studies and studies in which volunteers increased their consumption of 18:3n-3 show conversion to 20:5n-3 and 22:5n-3, but limited conversion to 22:6n-3...
September 2006: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/16441943/long-chain-n-3-pufa-plant-v-marine-sources
#7
REVIEW
Christine M Williams, Graham Burdge
Increasing recognition of the importance of the long-chain n-3 PUFA, EPA and DHA, to cardiovascular health, and in the case of DHA to normal neurological development in the fetus and the newborn, has focused greater attention on the dietary supply of these fatty acids. The reason for low intakes of EPA and DHA in most developed countries (0.1-0.5 g/d) is the low consumption of oily fish, the richest dietary source of these fatty acids. An important question is whether dietary intake of the precursor n-3 fatty acid, alpha-linolenic acid (alphaLNA), can provide sufficient amounts of tissue EPA and DHA by conversion through the n-3 PUFA elongation-desaturation pathway...
February 2006: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/16188209/conversion-of-alpha-linolenic-acid-to-longer-chain-polyunsaturated-fatty-acids-in-human-adults
#8
REVIEW
Graham C Burdge, Philip C Calder
The principal biological role of alpha-linolenic acid (alphaLNA; 18:3n-3) appears to be as a precursor for the synthesis of longer chain n-3 polyunsaturated fatty acids (PUFA). Increasing alphaLNA intake for a period of weeks to months results in an increase in the proportion of eicosapentaenoic acid (EPA; 20:5n-3) in plasma lipids, in erythrocytes, leukocytes, platelets and in breast milk but there is no increase in docosahexaenoic acid (DHA; 22:6n-3), which may even decline in some pools at high alphaLNA intakes...
September 2005: Reproduction, Nutrition, Development
https://www.readbyqxmd.com/read/15075703/alpha-linolenic-acid-metabolism-in-men-and-women-nutritional-and-biological-implications
#9
REVIEW
Graham Burdge
PURPOSE OF REVIEW: This review critically evaluates current knowledge of alpha-linolenic acid metabolism in adult humans based on the findings of studies using stable isotope tracers and on increased dietary alpha-linolenic acid intake. The relative roles of alpha-linolenic acid and of longer-chain polyunsaturated fatty acids in cell structure and function are discussed together with an overview of the major metabolic fates of alpha-linolenic acid. The extent of partitioning towards beta-oxidation and carbon recycling in humans is described...
March 2004: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/8042978/oestradiol-induced-changes-in-the-composition-of-phospholipid-classes-of-quail-oviduct-specific-replacement-of-arachidonic-acid-by-docosahexaenoic-acid-in-alkenylacyl-glycerophosphoethanolamine
#10
B E Felouati, J F Pageaux, J M Fayard, M Lagarde, C Laugier
The phospholipid composition and the molecular species of the major subclasses of ethanolamine and choline glycerophospholipids were determined during the natural or oestradiol-induced development of the quail oviduct. The phospholipid concentration increased significantly during oviduct development, and the proportion of ethanolamine glycerophospholipids (EPL) remained constant while that of choline glycerophospholipids increased. The immature oviduct contained the majority of its endogenous arachidonic acid mass (71%) in EPL, mainly in alkenylacyl-glycerophosphoethanolamine (alkenylacyl-GPE) (49% of the total)...
July 15, 1994: Biochemical Journal
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