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Uterine metabolism

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https://www.readbyqxmd.com/read/29471520/effect-of-exposure-to-second-hand-smoke-from-husbands-on-biochemical-hyperandrogenism-metabolic-syndrome-and-conception-rates-in-women-with-polycystic-ovary-syndrome-undergoing-ovulation-induction
#1
Jian Li, Q Wu, Xiao-Ke Wu, Zhong-Ming Zhou, Ping Fu, Xiu-Hua Chen, Ying Yan, Xin Wang, Zheng-Wang Yang, Wei-Li Li, Elisabet Stener-Victorin, Richard S Legro, Ernest Hung-Yu Ng, Heping Zhang, Ben Willem J Mol, Chi Chiu Wang
STUDY QUESTION: Does second-hand smoke (SHS) exposure from husbands have adverse effects on sex hormones, metabolic profiles, clinical phenotypes and fertility outcomes in women with polycystic ovary syndrome (PCOS) undergoing ovulation induction? SUMMARY ANSWER: SHS exposure is associated with worsened biochemical hyperandrogenism, higher incidence of metabolic syndrome and reduced conception rates in women with PCOS. WHAT IS KNOWN ALREADY: Smoking in women impairs fecundity at some stages of the reproductive process including folliculogenesis, embryo transport, endometrial angiogenesis and uterine blood flow...
February 20, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29466875/impacts-of-maternal-dietary-protein-intake-on-fetal-survival-growth-and-development
#2
Cassandra M Herring, Fuller W Bazer, Gregory A Johnson, Guoyao Wu
Maternal nutrition during gestation, especially dietary protein intake, is a key determinant in embryonic survival, growth, and development. Low maternal dietary protein intake can cause embryonic losses, intra-uterine growth restriction, and reduced postnatal growth due to a deficiency in specific amino acids that are important for cell metabolism and function. Of note, high maternal dietary protein intake can also result in intra-uterine growth restriction and embryonic death, due to amino acid excesses, as well as the toxicity of ammonia, homocysteine, and H2 S that are generated from amino acid catabolism...
January 1, 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29466770/neonatal-triphenyl-phosphate-and-its-metabolite-diphenyl-phosphate-exposure-induce-sex-and-dose-dependent-metabolic-disruptions-in-adult-mice
#3
Dezhen Wang, Wentao Zhu, Li Chen, Jin Yan, Miaomiao Teng, Zhiqiang Zhou
The widespread application of organophosphorous flame retardants (OPFRs) has led to considerable human exposure, with major concerns regarding their health risks. Herein, we investigate the effects of triphenyl phosphate (TPP), one of the most widely used OPFRs, and one of its main metabolite diphenyl phosphate (DPP) on the endocrine systems and metabolic profiles after neonatal exposure from postnatal days 1-10 at two dosages (2 and 200 μg per day). Both TPP and DPP had no negative effect on uterine weight, glucose tolerance, and estradiol...
February 18, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29457805/urinary-metabolomic-study-of-the-antagonistic-effect-of-p-ginseng-in-rats-with-estrogen-decline-using-ultra-performance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#4
He Lin, Zhongying Liu, Zifeng Pi, Lihui Men, Weijia Chen, Zhiqiang Liu
Estrogens are biologically active steroid hormones mainly released from the ovary by ovarian secretion of estrogen into the circulating blood to regulate or function at the distal target. Estrogens play an important role in the central nervous system, cardiovascular system and immune system, especially for post-menopausal women. Panax ginseng Mayer has been reported to relieve women's menopausal symptoms and affect estrogen activities. However, the mechanism of its estrogen regulation has not yet been clearly investigated...
February 19, 2018: Food & Function
https://www.readbyqxmd.com/read/29434026/identification-of-early-indicators-of-altered-metabolism-in-normal-development-using-a-rodent-model-system
#5
Ashok Daniel Prabakaran, Jimsheena Valiyakath Karakkat, Ranjit Vijayan, Jisha Chalissery, Marwa F Ibrahim, Suneesh Kaimala, Ernest A Adeghate, Ahmed Hasan Al-Marzouqi, Suraiya Anjum Ansari, Mensah-Brown Epk, Bright Starling Emerald
Although the existence of a close relationship between the early maternal developmental environment, fetal size at birth and the risk of developing disease in adulthood has been suggested, most studies, however, employed experimentally induced intrauterine growth restriction as model to link this with later adult disease. Since embryonic size variation occurs under normal growth and differentataion as well, elucidating the molecular mechanisms underlying these changes and their relevance to later adult disease risk becomes important...
January 30, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29432237/hypoxic-ischemic-encephalopathy-and-other-neonatal-encephalopathies
#6
Hannah C Glass
PURPOSE OF REVIEW: Neonatal encephalopathy is the most common condition in neonates encountered by child neurologists. The etiology is most often global hypoxia-ischemia due to failure of cerebral perfusion to the fetus caused by uterine, placental, or umbilical cord compromise prior to or during delivery. Other etiologies of neonatal encephalopathy include ischemic stroke and intracranial hemorrhage, infection, developmental anomalies, and inborn errors of metabolism. RECENT FINDINGS: Therapeutic hypothermia is standard of care for the treatment of neonatal encephalopathy presumed to be caused by hypoxia-ischemia...
February 2018: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29422210/pathophysiology-of-placental-derived-fetal-growth-restriction
#7
REVIEW
Graham J Burton, Eric Jauniaux
Placental-related fetal growth restriction arises primarily due to deficient remodeling of the uterine spiral arteries supplying the placenta during early pregnancy. The resultant malperfusion induces cell stress within the placental tissues, leading to selective suppression of protein synthesis and reduced cell proliferation. These effects are compounded in more severe cases by increased infarction and fibrin deposition. Consequently, there is a reduction in villous volume and surface area for maternal-fetal exchange...
February 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29406990/understanding-pluripotency-under-folic-acid-deficiency-using-embryonic-stem-cells-as-an-in-vitro-model
#8
Sowmya Kasulanati, Vijayalakshmi Venkatesan
Innumerable studies have been carried out by people to trace out those elements, find out the mechanisms that are vital to the maintenance of stemness. Amongst them, the one which is gaining importance in the recent past is the metabolism of stem cells, especially One carbon metabolism. Being associated directly or indirectly, with DNA and Histone methylation, One carbon metabolism has an important role to play as far as epigenetic regulation of stemness is concerned. Folic acid being a methyl donor, forms an important component of One Carbon metabolism, and thus its availability has a significant effect on the methylation reactions...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29402916/transcriptomic-changes-in-the-pre-implantation-uterus-highlight-histotrophic-nutrition-of-the-developing-marsupial-embryo
#9
Camilla M Whittington, Denis O'Meally, Melanie K Laird, Katherine Belov, Michael B Thompson, Bronwyn M McAllan
Early pregnancy is a critical time for successful reproduction; up to half of human pregnancies fail before the development of the definitive chorioallantoic placenta. Unlike the situation in eutherian mammals, marsupial pregnancy is characterised by a long pre-implantation period prior to the development of the short-lived placenta, making them ideal models for study of the uterine environment promoting embryonic survival pre-implantation. Here we present a transcriptomic study of pre-implantation marsupial pregnancy, and identify differentially expressed genes in the Sminthopsis crassicaudata uterus involved in metabolism and biosynthesis, transport, immunity, tissue remodelling, and uterine receptivity...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29402637/endometrial-blood-perfusion-as-assessed-using-a-novel-laser-doppler-technique-in-angus-cows
#10
M P T Owen, K J McCarty, C G Hart, C S Steadman, C O Lemley
Previous studies have characterized ovarian steroid synthesis which directly affects uterine environment and blood flow. Clearance of steroids occurs primarily in hepatic tissues, however, it was discovered that there is an abundant activity of the phase II steroid metabolizing enzyme UDP-glucuronosyltransferase (UGT) in uterine biopsies. No minimally invasive techniques for collecting endometrial perfusion, which is affected by steroids and indicative of reproductive health, have been developed for livestock...
February 1, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29401269/chronic-hyperandrogenemia-and-western-style-diet-beginning-at-puberty-reduces-fertility-and-increases-metabolic-dysfunction-during-pregnancy-in-young-adult-female-macaques
#11
C V Bishop, R L Stouffer, D L Takahashi, E C Mishler, M C Wilcox, O D Slayden, C A True
STUDY QUESTION: What are the impacts of elevated testosterone (T) and an obesogenic western-style diet (WSD), either independently or together, on fertility and metabolic adaptations of pregnancy in primates? SUMMARY ANSWER: Testosterone increases the time to achieve pregnancy, while a WSD reduces overall fertility, and the combination of testosterone and WSD additionally impairs glucose tolerance and causes pregnancy loss. WHAT IS KNOWN ALREADY: Both hyperandrogenemia and obesity are hallmarks of polycystic ovary syndrome, which is a leading cause of infertility among women worldwide...
February 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29399968/utility-of-18f-fluorodeoxyglucose-positron-emission-tomography-in-the-differential-diagnosis-of-benign-and-malignant-gynaecological-tumours
#12
Hiroaki Takagi, Jinichi Sakamoto, Yasuhiro Osaka, Takeo Shibata, Satoko Fujita, Toshiyuki Sasagawa
INTRODUCTION: Positron emission tomography/computed tomography (PET/CT) involving 18F-fluorodeoxyglucose (FDG) is widely used for systemic cancer and recurrence diagnosis. However, the differential diagnosis of benign and malignant gynaecological tumours according to FDG accumulation is unclear. This study aimed to investigate the intensity of FDG uptake/metabolic activity for the differential diagnosis of benign and malignant gynaecological tumours. METHODS: This study included seven patients with physiological phenomena, 34 with benign tumours, 13 with borderline malignant tumours and 119 with malignant tumours who underwent 18F-FDG PET/CT...
February 5, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29390568/uterine-fibroids-with-positive-18f-fdg-pet-ct-image-and-significantly-increased-ca19-9-a-case-report
#13
Yan Ma, Xiaonan Shao
RATIONALE: Uterine fibroids are the most common pelvic solid tumors and common to 25% of women. F-fluorodexyglucose (F-FDG) is an energy metabolism tracer. Although FDG is generally concentrated in malignant lesions with high glucose metabolism, it can also accumulate in normal tissues, benign lesions, and inflammatory sites. The exact mechanism of FDG uptake by uterine fibroids is not clear. Here, we report a case of uterine fibroids with positive F-FDG positron emission tomography/computed tomography (PET/CT) imaging and significantly increased CA19-9...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29347814/-customization-of-hormonal-contraception
#14
Vincenzo DE Leo, Antonio Cianci, Costantino DI Carlo, Valentina Cappelli, Franca Fruzzetti
In the last few years new oral contraceptives have been marketed showing a better safety profile for women. They are the result of important changes made to the old compounds. As far as the estrogenic component, with the aim of decreasing side effects, the dose of ethinyl estradiol has been reduced and synthetic estrogens have been replaced by natural estradiol, further improving the safety profile. Also the progestin component in the last years has been changed in terms of dose, endocrine and metabolic characteristics...
February 2018: Minerva Ginecologica
https://www.readbyqxmd.com/read/29341890/periodontal-diseases-and-adverse-pregnancy-outcomes-is-there-a-role-for-vitamin-d
#15
REVIEW
Anne Marie Uwitonze, Peace Uwambaye, Moses Isyagi, Chrispinus H Mumena, Alice Hudder, Afrozul Haq, Kamrun Nessa, Mohammed S Razzaque
Studies have shown a relationship between maternal periodontal diseases (PDs) and premature delivery. PDs are commonly encountered oral diseases which cause progressive damage to the periodontal ligament and alveolar bones, leading to loss of teeth and oral disabilities. PDs also adversely affect general health by worsening cardiovascular and metabolic diseases. Moreover, maternal PDs are thought to be related to increasing the frequency of preterm-birth with low birth weight (PBLBW) new-borns. Prematurity and immaturity are the leading causes of prenatal and infant mortality and is a major public health problem around the world...
January 13, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29339836/the-role-of-metabolic-enzymes-in-mesenchymal-tumors-and-tumor-syndromes-genetics-pathology-and-molecular-mechanisms
#16
REVIEW
Inga-Marie Schaefer, Jason L Hornick, Judith V M G Bovée
The discovery of mutations in genes encoding the metabolic enzymes isocitrate dehydrogenase (IDH), succinate dehydrogenase (SDH), and fumarate hydratase (FH) has expanded our understanding not only of altered metabolic pathways but also epigenetic dysregulation in cancer. IDH1/2 mutations occur in enchondromas and chondrosarcomas in patients with the non-hereditary enchondromatosis syndromes Ollier disease and Maffucci syndrome and in sporadic tumors. IDH1/2 mutations result in excess production of the oncometabolite (D)-2-hydroxyglutarate...
January 16, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29339399/ovariectomy-induced-bone-loss-in-tnf%C3%AE-and-il6-knockout-mice-is-regulated-by-different-mechanisms
#17
Siyi Zhu, Hongchen He, Chengfei Gao, Guojing Luo, Ying Xie, Haiming Wang, Li Tian, Chen Xiang, Yu Xijie, Chengqi He
Female wild-type (WT), TNFα knockout (TNFα-/-) or IL6 knockout (IL6-/-) mice aged 12 weeks were sham-operated (SHAM) or subjected to OVX and euthanized after 4 weeks. Bone mass and skeletal microarchitecture were determined using micro-CT. Bone marrow stromal cells (BMSCs) from all three groups were induced to differentiate into osteoblasts or osteoclasts. Bone metabolism was assessed by histological analysis and qRT-PCR. OVX significantly increased the body weight only in WT mice and decreased the uterine weight in all three genotypes...
January 16, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29311229/integrated-analysis-of-proteomic-and-transcriptomic-data-highlights-late-fetal-muscle-maturation-process
#18
Valentin Voillet, Magali San Cristobal, Marie-Christine Pere, Yvon Billon, Laurianne Canario, Laurence Liaubet, Louis Lefaucheur
BACKGROUND: In pigs, the perinatal period is the most critical time for survival. Piglet maturation, which occurs at the end of gestation, leads to a state of full development after birth. Maturity is thus an important determinant of early survival. Skeletal muscle plays a key role in adaptation to extra-uterine life, e.g. motor function and thermoregulation. Progeny from two breeds with extreme neonatal mortality rates were analyzed at 90 and 110 days of gestation (dg). The Large White breed is a highly selected breed for lean growth with a high rate of mortality at birth, whereas the Chinese Meishan breed is fatter and more robust and has a low mortality rate...
January 8, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29306096/embryotoxic-cytokines-potential-roles-in-embryo-loss-and-fetal-programming
#19
REVIEW
Sarah A Robertson, Peck-Yin Chin, Joseph G Femia, Hannah M Brown
Cytokines in the reproductive tract environment at conception mediate a dialogue between the embryo and maternal tissues to profoundly influence embryo development and implantation success. Through effects on gene expression and the cell stress response, cytokines elicit an epigenetic impact with consequences for placental development and fetal growth, which in turn affect metabolic phenotype and long-term health of offspring. There is substantial evidence demonstrating that pro-survival cytokines, such as GM-CSF, CSF1, LIF, HB-EGF and IGFII, support embryos to develop optimally...
December 27, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29289754/estrogen-regulated-transcription-mammary-gland-and-uterus
#20
Yasmin M Vasquez
Estrogen (E2) plays a central role in the developmental, metabolic and reproductive functions of both males and females. E2 acts via the estrogen receptor alpha (ERα) to regulate transcription of genes involved in numerous cellular functions. The E2-dependent engagement of ERα across the genome, collectively called the ERα 'cistrome', exhibits a high degree of complexity and plasticity. The ERα cistrome is defined by pioneer factors, transcription co-factors, posttranslational modifications of ERα, the chromatin environment, and cross talk with other signaling pathways...
December 29, 2017: Steroids
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