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https://www.readbyqxmd.com/read/28534183/prognostic-importance-of-lymph-node-to-primary-tumor-standardized-uptake-value-ratio-in-invasive-squamous-cell-carcinoma-of-uterine-cervix
#1
Hyun Hoon Chung, Gi Jeong Cheon, Jae-Weon Kim, Noh-Hyun Park, Yong Sang Song
PURPOSE: Using integrated PET/CT, we evaluated the prognostic value of [(18)F]FDG uptake ratio between pelvic lymph node (LN) and primary tumor in invasive squamous cell carcinoma (SCCA) of the uterine cervix. METHODS: We retrospectively reviewed patients with International Federation of Gynecology and Obstetrics (FIGO) stages IB to IIA cervical SCCA who underwent preoperative [(18)F]FDG PET/CT scans. PET/CT parameters such as maximum standardized uptake value (SUV) of the primary cervical cancer (SUVcervix) and LN (SUVLN), and the LN-to-cervical cancer SUV ratio (SUVLN/SUVcervix) were assessed...
May 23, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#2
Panagiota Filippou, Roy Homburg
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting reproductive-aged women. The pathophysiology of this syndrome is still not completely understood but recent evidence suggests that the intra-uterine environment may be a key factor in the pathogenesis of PCOS, in particular, hyperexposure of the foetus to androgens. High concentrations of maternal serum testosterone during pregnancy have been shown to influence behaviour during childhood, the prevalence of autism disorders and anti-Mullerian hormone (AMH) concentrations in adolescence...
May 20, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28523429/kir-lilrb-and-their-ligands-genes-as-potential-biomarkers-in-recurrent-implantation-failure
#3
REVIEW
Izabela Nowak, Karolina Wilczyńska, Jacek R Wilczyński, Andrzej Malinowski, Paweł Radwan, Michał Radwan, Piotr Kuśnierczyk
Reproductive failure in humans is a very important social and economic problem, because nowadays women decide to conceive later in life and delay motherhood. Unfortunately, with increasing age they have less chance for natural fertilization and maintenance of pregnancy. Many of them need assisted reproductive technology. Approximately 10% of women after in vitro fertilization-embryo transfers experience recurrent implantation failure (RIF). Multiple factors may contribute to RIF, including oocyte and sperm quality, parental chromosomal anomalies, genetic or metabolic abnormalities of the embryo, poor uterine receptivity, immunological disturbances in the implantation site, and some gynecologic pathologies such as endometriosis, uterine fibroids, hydrosalpinx and endometrial polyps...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28523389/effects-of-calving-season-on-the-voluntary-waiting-period-and-reproductive-performance-of-holstein-cows-in-the-tropical-savannah
#4
Thiago Vilar Silva, Benner Geraldo Alves, Kele Amaral Alves, Regiani Nascimento Gagno Porto, Maria Lucia Gambarini
The effects of calving season [rainy (RS) and dry (DS)] on the voluntary waiting period (VWP) of 58 Holstein cows raised in the tropical savannah were investigated using data of temperature humidity index (THI), total antioxidant status (TAS), respiratory rate (RR), rectal temperature (RT), glucose, total cholesterol (TC), triglycerides (TG), velocity of uterine regression, and subsequent reproductive performance. Blood samples and clinical data were taken once every week, from calving until the sixth postpartum week...
May 18, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28508679/comparison-of-fdg-pet-metabolic-tumour-volume-versus-adc-histogram-prognostic-value-of-tumour-treatment-response-and-survival-in-patients-with-locally-advanced-uterine-cervical-cancer
#5
Yoshiko Ueno, Robert Lisbona, Tsutomu Tamada, Amer Alaref, Kazuro Sugimura, Caroline Reinhold
OBJECTIVE: To evaluate the prognostic utility of volume-based parameters of fluorine 18 fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) and apparent diffusion coefficient (ADC) histogram analysis for tumour response to therapy and event-free survival (EFS) in patients with uterine cervical cancer receiving chemoradiotherapy (CRT). METHODS: The study included 21 patients diagnosed as locally advanced uterine cervical cancer who underwent pre-treatment MRI and (18)F-FDG PET and were treated with concurrent CRT...
May 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28483502/oxidative-stress-a-key-regulator-of-leiomyoma-cell-survival
#6
Nicole M Fletcher, Mohammed S Abusamaan, Ira Memaj, Mohammed G Saed, Ayman Al-Hendy, Michael P Diamond, Ghassan M Saed
OBJECTIVE: To determine the effects of attenuating oxidative stress with the use of dichloroacetate (DCA) on the expression of key redox enzymes myeloperoxidase (MPO) and inducible nitric oxide synthase (iNOS) as well as on apoptosis. DESIGN: Prospective experimental study. SETTING: University medical center. PATIENT(S): Cells established from myometrium and uterine fibroid from the same patients. INTERVENTION(S): Cells were exposed to normal (20% O2) or hypoxic (2% O2) conditions for 24 hours with or without DCA (20 μg/mL), a metabolic modulator that shifts anaerobic to aerobic metabolism...
May 5, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28472298/adiponectin-stimulates-lipid-metabolism-via-ampk-in-rabbit-blastocysts
#7
Maria Schindler, Mareike Pendzialek, Katarzyna Joanna Grybel, Tom Seeling, Jacqueline Gürke, Bernd Fischer, Anne Navarrete Santos
STUDY QUESTION: How does a maternal diabetic hyperadiponectineamia affect signal transduction and lipid metabolism in rabbit preimplantation blastocysts? SUMMARY ANSWER: In a diabetic pregnancy increased levels of adiponectin led to a switch in embryonic metabolism towards a fatty acid-dependent energy metabolism, mainly affecting genes that are responsible for fatty acid uptake and turnover. WHAT IS KNOWN ALREADY: Although studies in cell culture experiments have shown that adiponectin is able to regulate lipid metabolism via 5'-AMP-activated protein kinase (AMPK) and peroxisome proliferator-activated receptor α (PPARα), data on the effects of adiponectin on embryonic lipid metabolism are not available...
May 4, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28469842/peripheral-leukocyte-and-endometrium-molecular-biomarkers-of-inflammation-and-oxidative-stress-are-altered-in-peripartal-dairy-cows-supplemented-with-zn-mn-and-cu-from-amino-acid-complexes-and-co-from-co-glucoheptonate
#8
Fernanda Batistel, Johan S Osorio, Muhammad Rizwan Tariq, Cong Li, Jessica Caputo, Michael T Socha, Juan J Loor
BACKGROUND: Immune dysfunction and a higher risk of uterine infections are characteristics of the transition into lactation in dairy cows. The supply of complexed trace minerals, which are more bioavailable, could help overcome the greater needs of these nutrients in tissues around parturition and early lactation. RESULTS: Twenty Holstein cows received an oral bolus with a mix of inorganic trace minerals (INO) or complexed trace minerals (AAC) to achieve 75, 65, 11, and 1 ppm supplemental Zn, Mn, Cu, and Co, respectively, in the total diet dry matter from -30 d through +30 d relative to parturition...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28439056/-calcium-and-bone-metabolism-across-women-s-life-stages-treatment-for-the-malignant-tumors-in-women-and-bone-calcium-metabolism
#9
Noriko Kobayashi
In the malignant tumors in women, uterine cervical cancer, endometrial cancer, ovarian cancer, and breast cancer are representative diseases. The cancer treatment is classified roughly into an operation, medical treatment, and radiation therapy and has an extremely big influence on ovarian function. With the improvement in survival of cancer patients, the importance of the health care for the cancer survivors increases. It is necessary to prevent the onset of the osteoporotic fractures to maintain QOL. This paper describes the action that the malignant tumors of the women affect bone metabolism mainly from the viewpoint of ovarian function...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28428364/role-of-oestrogen-receptor-signaling-in-skeletal-response-to-leptin-in-female-ob-ob-mice
#10
Russell T Turner, Kenneth A Philbrick, Amida Kuah, Adam J Branscum, Urszula T Iwaniec
Leptin, critical in regulation of energy metabolism, is also important for normal bone growth, maturation and turnover. Compared to wild type (WT) mice, bone mass is lower in leptin-deficient ob/ob mice; osteopenia in growing ob/ob mice is due to decreased bone accrual, and is associated with reduced longitudinal bone growth, impaired cancellous bone maturation and increased marrow adipose tissue (MAT). However, leptin deficiency also results in gonadal dysfunction, disrupting production of gonadal hormones which regulate bone growth and turnover...
April 20, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28423698/parameters-of-simultaneous-18f-fdg-pet-mri-predict-tumor-stage-and-several-histopathological-features-in-uterine-cervical-cancer
#11
Alexey Surov, Hans Jonas Meyer, Stefan Schob, Anne-Kathrin Höhn, Kristina Bremicker, Marc Exner, Patrick Stumpp, Sandra Purz
The purpose of this study was to analyze associations between apparent diffusion coefficient (ADC) and standardized uptake values (SUV) values and different histopathological parameters in uterine cervical cancer. 21 patients with primary uterine cervical cancer were involved into the study. All patients underwent a whole body simultaneous18F-FDG PET/MRI. Mean and maximum SUV were noted (SUVmean and SUVmax). In all tumors minimal, mean, and maximal ADC values (ADCmin, ADCmean, and ADCmax) were estimated. Combined parameters were calculated: SUVmax/SUVmean, ADCmin/ ADCmean, SUVmax/ADCmin and SUVmax/ADCmean...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28395335/role-of-stro1-cd44-stem-cells-in-myometrial-physiology-and-uterine-remodeling-during-pregnancy%C3%A2
#12
Aymara Mas, Lauren Prusinski, Qiwei Yang, Patricia Diaz-Gimeno, Lelyand Stone, Michael P Diamond, Carlos Simón, Ayman Al-Hendy
Regulation of myometrial functions during pregnancy has been considered the result of the integration of endocrine and mechanical signals. Nevertheless, uterine regeneration is poorly understood, and the cellular source within the gravid uterus is largely unexplored.In this study, we isolated and quantified the myometrial stem cells (MSC) population from pregnant female Eker rat uteri, by using Stro1/CD44 surface markers. We demonstrated that prior parity significantly increased the percentage of Stro1+/CD44+ MSC because of injured tissue response...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28389056/effects-of-adipokines-and-obesity-on-uterine-contractility
#13
REVIEW
Henri Azaïs, Audrey Leroy, Louise Ghesquiere, Philippe Deruelle, Sandy Hanssens
Obesity is a major public health problem. The prevalence of obesity has significantly increased in developed countries, particularly in France with an overall increase of 76% over the last 15 years. In pregnant women, obesity is associated with alterations in the quality of labor, such as delayed onset of labor, a higher rate of prolonged pregnancies, prolonged labor, and higher oxytocin requirements. There is also an increased prevalence of Cesarean sections, particularly during the active phase of labor, and perinatal complications (postpartum hemorrhage)...
January 13, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28339573/augmented-h2s-production-via-cystathionine-beta-synthase-upregulation-plays-a-role-in-pregnancy-associated-uterine-vasodilation%C3%A2
#14
Lili Sheibani, Thomas J Lechuga, Honghai Zhang, Afshan Hameed, Deborah A Wing, Sathish Kumar, Charles R Rosenfeld, Dong-Bao Chen
Endogenous hydrogen sulfide (H2S) synthesized via metabolizing L-cysteine by cystathionine-beta-synthase (CBS) and cystathionine-gamma-lyase (CSE) is a potent vasodilator and angiogenic factor. The objectives of this study were to determine if human uterine artery (UA) H2S production increases with augmented expression and/or activity of CBS and/or CSE during the menstrual cycle and pregnancy and whether exogenous H2S dilates UA. Uterine arteries from nonpregnant (NP) premenopausal proliferative (pPRM) and secretory (sPRM) phases of the menstrual cycle and pregnant (P) women were studied...
March 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28336389/metformin-ameliorates-uterine-defects-in-a-rat-model-of-polycystic-ovary-syndrome
#15
Yuehui Zhang, Min Hu, Fanci Meng, Xiaoyan Sun, Hongfei Xu, Jiao Zhang, Peng Cui, Njomeza Morina, Xin Li, Wei Li, Xiao-Ke Wu, Mats Brännström, Ruijin Shao, Håkan Billig
Adult rats treated concomitantly with insulin and human chorionic gonadotropin exhibit endocrine, metabolic, and reproductive abnormalities that are very similar to those observed in polycystic ovary syndrome (PCOS) patients. In this study, we used this rat model to assess the effects of metformin on PCOS-related uterine dysfunction. In addition to reducing androgen levels, improving insulin sensitivity, and correcting the reproductive cycle, metformin treatment induced morphological changes in the PCOS-like uterus...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28335821/differential-gene-expression-profiling-of-endometrium-during-the-mid-luteal-phase-of-the-estrous-cycle-between-a-repeat-breeder-rb-and-non-rb-cows
#16
Ken-Go Hayashi, Misa Hosoe, Keiichiro Kizaki, Shiori Fujii, Hiroko Kanahara, Toru Takahashi, Ryosuke Sakumoto
BACKGROUND: Repeat breeding directly affects reproductive efficiency in cattle due to an increase in services per conception and calving interval. This study aimed to investigate whether changes in endometrial gene expression profile are involved in repeat breeding in cows. Differential gene expression profiles of the endometrium were investigated during the mid-luteal phase of the estrous cycle between repeat breeder (RB) and non-RB cows using microarray analysis. METHODS: The caruncular (CAR) and intercaruncular (ICAR) endometrium of both ipsilateral and contralateral uterine horns to the corpus luteum were collected from RB (inseminated at least three times but not pregnant) and non-RB cows on Day 15 of the estrous cycle (4 cows/group)...
March 23, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#17
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
May 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28324053/hepatic-insulin-resistance-and-altered-gluconeogenic-pathway-in-premature-baboons
#18
Lisa McGill-Vargas, Amalia Gastaldelli, Hanyu Liang, Diana Anzueto Guerra, Teresa Johnson-Pais, Steven Seidner, Donald McCurnin, Giovanna Muscogiuri, Ralph DeFronzo, Nicolas Musi, Cynthia Blanco
Premature infants have altered glucose regulation early in life and increased risk for diabetes in adulthood. Although prematurity leads to an increased risk of diabetes and metabolic syndrome in adult life, the role of hepatic glucose regulation and adaptation to an early extra-uterine environment in preterm infants remain unknown. The purpose of this study was to investigate developmental differences in glucose metabolism, hepatic protein content and gene expression of key insulin signaling/gluconeogenic molecules...
January 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28301988/the-influence-of-lipid-and-proinflammatory-status-on-maternal-uterine-blood-flow-in-women-with-late-onset-gestational-diabetes
#19
Fernando Bugatto, Rocío Quintero-Prado, Francisco M Visiedo, José M Vilar-Sánchez, Alejandro Figueroa-Quiñones, Cristina López-Tinoco, Rafael Torrejón, José L Bartha
BACKGROUND: Gestational diabetes mellitus (GDM) is associated with increased proinflammatory cytokines and is also associated with adverse cardiovascular disease (CVD) outcomes later in life. We aim to evaluate the relationships between uterine arteries vascularization and endothelial dysfunction markers, proinflammatory cytokines, and glycemic and lipid profile in women with GDM. METHODS: Fifty pregnant women were recruited at the third trimester of pregnancy for a prospective cohort study...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28285017/effects-of-the-aryl-hydrocarbon-receptor-agonist-3-methylcholanthrene-on-the-17%C3%AE-estradiol-regulated-mrna-transcriptome-of-the-rat-uterus
#20
Janina Helle, Annekathrin M Keiler, Oliver Zierau, Peggy Dörfelt, Günter Vollmer, Leane Lehmann, Sridar V Chittur, Martin Tenniswood, JoEllen Welsh, Georg Kretzschmar
Polycyclic aromatic hydrocarbons (PAHs) are products of incomplete combustion of organic compounds, abundant in exhaust fumes and cigarette smoke. They act by binding to the aryl hydrocarbon receptor (AHR) which induces expression of phase 1 and phase 2 enzymes in the liver. PAH induced AHR activation may also lead to adverse effects by modulating other pathways, for example estrogen receptor (ER) signaling in the female reproductive tract. We have investigated the effects of the PAH 3-methylcholanthrene (3-MC) on 17β-estradiol (E2) dependent signaling in the uterus of ovariectomized rats to characterize the cross talk between AHR and ER on an mRNA transcriptome wide scale...
March 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
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