infertility/triacylglycerol

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Genetic variation of hormone sensitive lipase and male infertility.

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Hormone sensitive lipase (HSL) is a triacylglycerol hydrolase and cholesterol esterase that is essential for male fertility. The aim of the study was to investigate the distribution of C-60G polymorphism of HSL gene and alleles in fertile and infertile males living in Hamadan, Iran. In addition,

A Shift in Glycerolipid Metabolism Defines the Follicular Fluid of IVF Patients with Unexplained Infertility

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Follicular fluid (FF) constitutes the microenvironment of the developing oocyte. We recently characterized its lipid composition and found lipid signatures of positive pregnancy outcome after in vitro fertilization (IVF). In the current study, we aimed to test the hypothesis that unexplained female

Infertility and testicular defects in hormone-sensitive lipase-deficient mice.

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The 84-kDa hormone-sensitive lipase (gene designation Lipe; EC 3.1.1.3) is a cholesterol esterase and triglyceride hydrolase that functions in the release of fatty acids from adipocytes. The role of hormone-sensitive lipase in other tissues such as the testis, where a specific 120-kDa

Targeted disruption of hormone-sensitive lipase results in male sterility and adipocyte hypertrophy, but not in obesity.

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Hormone-sensitive lipase (HSL) is known to mediate the hydrolysis not only of triacylglycerol stored in adipose tissue but also of cholesterol esters in the adrenals, ovaries, testes, and macrophages. To elucidate its precise role in the development of obesity and steroidogenesis, we generated HSL

Cold stress alters transcription in meiotic anthers of cold tolerant chickpea (Cicer arietinum L.).

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BACKGROUND Cold stress at reproductive phase in susceptible chickpea (Cicer arietinum L.) leads to pollen sterility induced flower abortion. The tolerant genotypes, on the other hand, produce viable pollen and set seed under cold stress. Genomic information on pollen development in cold-tolerant

Unraveling the sperm proteome and post-genomic pathways associated with sperm nuclear DNA fragmentation.

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OBJECTIVE Sperm DNA fragmentation has been suggested as a marker for infertility diagnosis and prognosis. Hence, understanding its impact on male physiology and post-genomic pathways would be clinically important. We performed the proteomics and functional enrichment analyses of viable spermatozoa

Antioxidant protection and lipid peroxidation in testes and different parts of epididymis in boars.

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The antioxidative ability of testes and epididymis to protect spermatozoa from detrimental effects of oxidation processes induced by excessive generation of reactive oxygen species has not been previously studied in detail in boar reproductive tissues. The aim of this study was to investigate

Multilocus sequence typing characterizes diversity of Ureaplasma diversum strains, and intra-species variability induces different immune response profiles

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Background: Ureaplasma diversum is a pathogen found in the genital tract of cattle and associated with genital disorders such as infertility, placentitis, abortion, birth of weak calves, low sperm motility, seminal vesiculitis and

Effects of insulin on the metabolism of the isolated working rat heart perfused with undiluted rat blood.

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Working rat hearts were perfused with either buffer or with defibrinated, undiluted rat blood dialyzed to remove vasoconstrictor factors. With precautions taken for sterility in the preparation of the perfusate and the apparatus, hearts were obtained which were stable as judged by stroke rate and

Hypothyroidism affects lipid and glycogen content and peroxisome proliferator-activated receptor ? expression in the ovary of the rabbit.

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Dyslipidaemia and hyperglycaemia are associated with ovarian failure and both have been related to hypothyroidism. Hypothyroidism promotes anovulation and ovarian cysts in women and reduces the size of follicles and the expression of aromatase in the ovary of rabbits. Considering that ovarian

Reversible phenotypic modulation induced by deprivation of exogenous essential fatty acids.

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Essential fatty acid deficiency, produced by deprivation of omega-6 and omega-3 fatty acids, is a condition characterized by renal disease, dermatitis, and infertility. Although many of the biochemical aspects of this disorder have been investigated, little is known about the ultrastructural changes

Hypothyroidism modifies differentially the content of lipids and glycogen, lipid receptors, and intraepithelial lymphocytes among oviductal regions of rabbits.

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Hypothyroidism affects the content of triacylglycerol (TAG), total cholesterol (TC), oxidized lipids, glycogen, and infiltration of immune cells into the ovary and uterus. This study aimed to analyze the impact of hypothyroidism on the lipid content of different regions of the oviduct. Control (n =

Apolipoprotein E genotypes of fertile and infertile men.

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Lipid components of spermatozoa have an important role in the functional activity of this cell. The protein, apolipoprotein E (apoE), has a central role in lipid transport. The aim of this study was to investigate the distribution of APOE genotypes, ϵ3ϵ3, ϵ3ϵ4, and ϵ2ϵ3, and the corresponding

The effect of nutritional management of the dairy cow on reproductive efficiency.

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The cause of low fertility in dairy cows is multifactorial. Poor nutrition during the dry and early postpartum periods results in reduced glucose, insulin, insulin-like growth factor (IGF-I) and low LH pulse frequency with concomitant increases in beta-hydroxy butyrate, non-esterified fatty acids

Normal plasma lipoproteins and fertility in gene-targeted mice homozygous for a disruption in the gene encoding very low density lipoprotein receptor.

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The very low density lipoprotein (VLDL) receptor is a recently cloned member of the low density lipoprotein (LDL) receptor family that mediates the binding and uptake of VLDL when overexpressed in animal cells. Its sequence is 94% identical in humans and rabbits and 84% identical in humans and

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