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https://www.readbyqxmd.com/read/28109853/variants-of-estrogen-receptor-alpha-and-beta-genes-modify-the-severity-of-sporadic-breast-cancer
#1
Luciana Montes Rezende, Fernando Augusto Lima Marson, Carmen Sílvia Passos Lima, Carmen Sílvia Bertuzzo
INTRODUCTION: Reproductive factors pose a risk for sporadic breast cancer(BC) development owing to the lifetime exposure to estrogen, a hormone responsible for cell proliferation in the breast. Because variants of the estrogen receptor(ER) alpha and beta genes have been associated with BC risk in numerous populations, the objective of the study was to determine whether the risk and severity of sporadic BC was associated with the rs2228480(ESR1) and rs4986938(ESR2) variants in a Brazilian population...
January 18, 2017: Gene
https://www.readbyqxmd.com/read/28109826/biological-relevance-of-effects-following-chronic-administration-of-octamethylcyclotetrasiloxane-d4-in-fischer-344-rats
#2
Wolfgang Dekant, Anthony R Scialli, Kathy Plotzke, James E Klaunig
Octamethylcyclotetrasiloxane (D4) is a cyclic siloxane primarily used as a monomer or intermediate in the production of silicone polymers resulting in potential exposure of workers, and potential low level inhalation or dermal exposure for consumers and the general public. Following a two-year inhalation toxicity study with D4 in rats, increases in uterine endometrial cystic hyperplasia and adenomas were observed at the highest concentration of D4 administered (700ppm). No other neoplasms were increased with D4 treatment...
January 18, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28098598/science-of-intracrinology-in-postmenopausal-women
#3
Fernand Labrie, Alain Bélanger, Georges Pelletier, Céline Martel, David F Archer, Wulf H Utian
OBJECTIVE: To illustrate the marked differences between classical endocrinology that distributes hormones to all tissues of the body through the bloodstream and the science of intracrinology, whereby each cell of each peripheral tissue makes a small and appropriate amount of estrogens and androgens from the inactive precursor dehydroepiandrosterone (DHEA), DHEA being mainly of adrenal origin. Because only the inactivated sex steroids are released in the blood, influence in the other tissues is avoided...
January 16, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28096640/prevalence-of-metabolic-syndrome-in-pre-and-post-menopausal-women-a-prospective-study-from-apex-institute-of-north-india
#4
Sandeep Sharma, Neelam Aggarwal, Bharti Joshi, Vanita Suri, Sanjay Badada
BACKGROUND: The metabolic syndrome (MS) (syndrome X, insulin resistance syndrome) is a constellation of metabolic abnormalities and a complex predisease state that predicts future development of type 2 diabetes mellitus and cardiovascular disease. Menopausal transition and postmenopausal state are considered as a vulnerable period for developing MS, and this increased risk has been attributed to decreasing estrogen levels with an increasing risk of insulin resistance following menopause...
October 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28093566/estrogen-dependent-association-of-hdac4-with-fear-in-female-mice-and-women-with-ptsd
#5
S A Maddox, V Kilaru, J Shin, T Jovanovic, L M Almli, B G Dias, S D Norrholm, N Fani, V Michopoulos, Z Ding, K N Conneely, E B Binder, K J Ressler, A K Smith
Women are at increased risk of developing post-traumatic stress disorder (PTSD) following a traumatic event. Recent studies suggest that this may be mediated, in part, by circulating estrogen levels. This study evaluated the hypothesis that individual variation in response to estrogen levels contributes to fear regulation and PTSD risk in women. We evaluated DNA methylation from blood of female participants in the Grady Trauma Project and found that serum estradiol levels associates with DNA methylation across the genome...
January 17, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28090005/unstable-angina-pectoris-in-a-22-year-old-female-patient
#6
Hanae Yoshimura, Toyoharu Oba, Takanobu Nagata, Eita Kumagai, Naoki Itaya, Naohiro Yoshikawa, Daiki Akagaki, Hideki Ohshima, Michihide Nishihara, Takafumi Ueno, Yoshihiro Fukumoto
Because of the protective effect of estrogen for atherosclerosis, the prevalence of acute coronary syndrome in women before menopause is low. We report a rare case of unstable angina in a young Japanese female who had a history of cigarette smoking and contraceptive use. Her coronary stenosis was successfully treated by percutaneous coronary intervention.
January 16, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/28064523/iranian-postmenopausal-women-s-experiences-of-treatment-of-symptomatic-vulvovaginal-atrophy
#7
E Fooladi, M Deldar, F Mohammadzadeh, E Ahmadnia, S Khani, Z Ghanbari
OBJECTIVES: Our aim was to explore the experiences of Iranian postmenopausal women who sought medical help for their symptomatic vulvovaginal atrophy (VVA). METHODS: Five focus group discussions (FGDs) were conducted. Participants had to be postmenopausal; had bothersome symptoms of VVA for which they came to the clinic; had previously sought medical help for their VVA; and had confirmed physical signs of VVA upon examination by a gynecologist. RESULTS: Twenty-five women, aged 49-60 years participated in the five FGDs...
January 8, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28062232/interactions-between-estradiol-and-haloperidol-on-perseveration-and-reversal-learning-in-amphetamine-sensitized-female-rats
#8
Anne Almey, Lauren Arena, Joshua Oliel, Nada Hafez, Cynthia Mancinelli, Lukas Henning, Aleks Tsanev, Wayne G Brake
There are sex differences associated with schizophrenia, as women exhibit later onset of the disorder, less severe symptomatology, and better response to antipsychotic medications. Estrogens are thought to play a role in these sex differences; estrogens facilitate the effects of antipsychotic medications to reduce the positive symptoms of schizophrenia, but it remains unclear whether estrogens protect against the cognitive symptoms of this disorder. Amphetamine sensitization is used to model some symptoms of schizophrenia in rats, including cognitive deficits like excessive perseveration and slower reversal learning...
January 4, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28061893/prognostic-significance-of-ki67-in-chinese-women-diagnosed-with-er-her2-breast-cancers-by-the-2015%C3%A2-st-gallen-consensus-classification
#9
Yue Hu, Ran Gu, Jinghua Zhao, Yaping Yang, Fengtao Liu, Liang Jin, Kai Chen, Haixia Jia, Hongli Wang, Qiang Liu, Fengxi Su, Weijuan Jia
BACKGROUND: This study evaluated the distribution pattern of the Ki67-labeling index (LI) among patients at a Chinese breast cancer center, and analyzed its prognostic significance in the 2015 St Gallen consensus breast cancer classification, estrogen receptor-positive and human epidermal growth factor receptor 2-negative(ER(+)/HER2(-))subtype. METHODS: We classified 939 women with ER(+)/HER2(-) breast cancer into three groups by Ki67-LI levels, and followed their clinicopathologic characteristics and prognoses...
January 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28042734/vulvar-and-vaginal-atrophy-as-viewed-by-the-spanish-revive-participants-symptoms-management-and-treatment-perceptions
#10
S Palacios, M J Cancelo, C Castelo Branco, P Llaneza, F Molero, R Sanchez Borrego
OBJECTIVES: To gain a deeper comprehension of current vulvovaginal atrophy (VVA) knowledge among Spanish postmenopausal women. METHODS: An online survey (REVIVE) was conducted in four European countries with an overall sample of 768 participants included in Spain. Perceptions, experiences and needs of Spanish postmenopausal women in terms of sexual and vaginal health were reported. RESULTS: Vaginal dryness was the most common VVA symptom in Spain (81%)...
January 2, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28040128/impact-of-low-concentrations-of-phthalates-on-the-effects-of-17%C3%AE-estradiol-in-mcf-7-breast-cancer-cells
#11
Fang-Ping Chen, Mei-Hua Chien, Ingrid Ying-Yu Chern
OBJECTIVE: To explore whether lower concentrations of phthalates interfere with the effects of 17β-estradiol on the growth of MCF-7 breast cancer cells. MATERIALS AND METHODS: MCF-7 cells were treated with 17β-estradiol (E2), phthalates, including butyl benzyl phthalate (BBP), di(n-butyl) phthalate (DBP), and di(20ethylhexyl) phthalate (DEHP), or with both E2 and phthalates, all at 10nM. After incubation for 48 hours, the cells were harvested and extracted for MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay...
December 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28034986/influence-of-sexual-hormones-on-neural-orofacial-perception
#12
Bruna Alves, Flavia Ibuki, Alyne Simões Gonçalves, Manoel Jacobsen Teixeira, Silvia Regina Dowgan Tesseroli De Siqueira
OBJECTIVE  : To investigate the trigeminal somatosensory (thermal, pain, tactile, vibratory, and electric), gustative (salty, bitter, sweet, sour), and olfactory thresholds in healthy women during the menstrual cycle and investigate any association with estradiol and progesterone levels in saliva. METHODS : We examined/tested 39 women between age 19 and 47 years and with regular menstrual cycles and no comorbidities. All women were informed about the purposes of the study, and only those who signed the informed consent were included...
December 29, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28032426/lipoprotein-a-in-postmenopausal-women-assessment-of-cardiovascular-risk-and-therapeutic-options
#13
REVIEW
Panagiotis Anagnostis, Spyridon Karras, Irene Lambrinoudaki, John C Stevenson, Dimitrios G Goulis
INTRODUCTION: Lipoprotein(a) [Lp(a)], a low-density lipoprotein (LDL)-like particle, has been independently associated with increased cardiovascular disease (CVD) risk in various populations, such as postmenopausal women. The purpose of this narrative review is to present current data on the role of Lp(a) in augmenting CVD risk in postmenopausal women and focus on the available therapeutic strategies. METHODS: PubMed was searched for English language publications until November 2015 under the following terms: "therapy" OR "treatment" AND ["lipoprotein (a)" OR "Lp(a)"] AND ("postmenopausal women" OR "menopausal women" OR "menopause")...
December 2016: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28024987/effects-of-high-intensity-training-on-cardiovascular-risk-factors-in-pre-and-postmenopausal-women
#14
Camilla M Mandrup, Jon Egelund, Michael Nyberg, Martina H Lundberg Slingsby, Caroline Andersen, Sofie Løgstrup, Jens Bangsbo, Charlotte Suetta, Bente Stallknecht, Ylva Hellsten
BACKGROUND: Menopause is associated with increased risk of cardiovascular disease and the causal factors have been proposed to be the loss of estrogen and the subsequent alterations of the hormonal milieu. However, which factors that contribute to the deterioration of cardio-metabolic health in postmenopausal women is debated as the menopausal transition is also associated with increased age and fat mass. Furthermore, indications of reduced cardio-metabolic adaptations to exercise in postmenopausal women add to the adverse health profile...
December 23, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28008325/lactobacilli-dominance-and-vaginal-ph-why-is-the-human-vaginal-microbiome-unique
#15
Elizabeth A Miller, DeAnna E Beasley, Robert R Dunn, Elizabeth A Archie
The human vaginal microbiome is dominated by bacteria from the genus Lactobacillus, which create an acidic environment thought to protect women against sexually transmitted pathogens and opportunistic infections. Strikingly, lactobacilli dominance appears to be unique to humans; while the relative abundance of lactobacilli in the human vagina is typically >70%, in other mammals lactobacilli rarely comprise more than 1% of vaginal microbiota. Several hypotheses have been proposed to explain humans' unique vaginal microbiota, including humans' distinct reproductive physiology, high risk of STDs, and high risk of microbial complications linked to pregnancy and birth...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27997350/a-low-dose-6-5-mg-of-intravaginal-dhea-permits-a-strictly-local-action-while-maintaining-all-serum-estrogens-or-androgens-as-well-as-their-metabolites-within-normal-values
#16
Fernand Labrie, Céline Martel
OBJECTIVE: Serum concentrations of estradiol (E2) and testosterone (testo) measured by mass spectrometry-based assays should remain below the 95th centile measured at 9.3 pg/mL for E2 and 0.26 ng/mL for testo in normal postmenopausal women in order to avoid the risk of non-physiological systemic exposure to elevated serum concentrations of these two sex steroids. METHODS: Serum E2 and testo, as well as dehydroepiandrosterone (DHEA) and nine of its other metabolites, were measured at 10 time intervals over 24 h on the first and seventh days of daily intravaginal administration of 0...
December 20, 2016: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/27981512/reduced-serum-levels-of-oestradiol-and-brain-derived-neurotrophic-factor-in-both-diabetic-women-and-hfd-feeding-female-mice
#17
Yi Zhang, Shan-Wen Zhang, Neeta Khandekar, Shi-Fei Tong, He-Qin Yang, Wan-Ru Wang, Xu-Feng Huang, Zhi-Yuan Song, Shu Lin
The estrogen levels in the pre and post menstrual phases interact with brain-derived neurotrophic factor in a complex manner, which influences the overall state of the body. To study the role of oestradiol and brain-derived neurotrophic factor in modulating obesity related type 2 diabetes and the interactions between two factors, we enrolled 15 diabetic premenopausal women and 15 diabetic postmenopausal women respectively, the same number of healthy pre and postmenopausal women were recruited as two control groups...
December 16, 2016: Endocrine
https://www.readbyqxmd.com/read/27960568/altered-expression-of-hormone-receptor-integrin-%C3%AE-3-and-pinopode-in-the-endometrium-of-luteal-phase-defect-women
#18
Shuangge Liu, Teng Hua, Xiaoyan Xin, Rui Shi, Shuqi Chi, Hongbo Wang
OBJECTIVE: To invistigate estrogen receptor (ER), progesterone receptor (PR), integrin β3, and pinopode expression in luteal phase deficiency (LPD) women. METHODS: There were 52 nulligravidas consecutive infertile patients undergoing a routine assistant reproduction consultation included in this study. An endometrial biopsy sample was randomly obtained between days 4 and 10 of the luteal phase. Endometrial morphology was examined with scanning electron microscopy...
December 14, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27959335/functional-evaluation-of-a-ptsd-associated-genetic-variant-estradiol-regulation-and-adcyap1r1
#19
K B Mercer, B Dias, D Shafer, S A Maddox, J G Mulle, P Hu, J Walton, K J Ressler
Posttraumatic stress disorder (PTSD) affects 5-10% percent of the US adult population with a higher prevalence among women compared with men. Although it remains unclear how biological sex associates with susceptibility to PTSD, one mechanism may involve a role for estrogen in a gene by environment interaction. We previously demonstrated a sex-dependent association between the pituitary adenylate cyclase-activating polypeptide type 1 receptor (PAC1) and PTSD, where carriers of a C allele at single-nucleotide polymorphism (SNP) rs2267735 within the PAC1 receptor gene (ADCYAP1R1) have increased symptoms of PTSD...
December 13, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27929271/hormone-therapy-and-other-treatments-for-symptoms-of-menopause
#20
D Ashley Hill, Mark Crider, Susan R Hill
The results of large clinical trials have led physicians and patients to question the safety of hormone therapy for menopause. In the past, physicians prescribed hormone therapy to improve overall health and prevent cardiac disease, as well as for symptoms of menopause. Combined estrogen/progestogen therapy, but not estrogen alone, increases the risk of breast cancer when used for more than three to five years. Therefore, in women with a uterus, it is recommended that physicians prescribe combination therapy only to treat menopausal symptoms such as vasomotor symptoms (hot flashes) and vaginal atrophy, using the smallest effective dosage for the shortest possible duration...
December 1, 2016: American Family Physician
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