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Luteal phase

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https://www.readbyqxmd.com/read/29792048/annals-express-a-novel-high-throughput-assay-for-the-measurement-of-salivary-progesterone-by-liquid-chromatography-tandem-mass-spectrometry
#1
Lina Schiffer, Joanne Elaine Adaway, Elizabeth S Baranowski, Wiebke Arlt, Brian G Keevil
BACKGROUND: Liquid chromatography tandem mass spectrometry (LC-MS/MS) enables specific and sensitive quantification of steroids with a high-throughput. Saliva sampling is advantageous for multi-sample profiling over longer periods of time as it is non-invasive, cheap, can be carried out at home and does not require the attendance of clinical personnel. We developed a rapid LC-MS/MS for the measurement of salivary progesterone, frequently assessed as ovulation marker in patients desiring fertility...
January 1, 2018: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/29790961/increased-vulnerability-to-attentional-failure-during-acute-sleep-deprivation-in-women-depends-on-menstrual-phase
#2
Parisa Vidafar, Joshua J Gooley, Angus C Burns, Shantha M W Rajaratnam, Melanie Rueger, Eliza Van Reen, Charles A Czeisler, Steven W Lockley, Sean W Cain
Study Objectives: Investigate sex differences in the effect of sleep deprivation on performance, accounting for menstrual phase in women. Methods: We examined alertness data from 124 healthy women and men (40 women, 84 men; aged 18 - 30 years) who maintained wakefulness for at least 30 hours in a laboratory setting using a constant routine protocol. Objective alertness was assessed every two hours using a 10-minute Psychomotor Vigilance Task. Subjective alertness was assessed every hour via the Karolinska Sleepiness Scale...
May 22, 2018: Sleep
https://www.readbyqxmd.com/read/29790386/estrogen-biosynthesis-in-breast-adipose-tissue-during-menstrual-cycle-in-women-with-and-without-breast-cancer
#3
Hanna Savolainen-Peltonen, Veera Vihma, Feng Wang, Ursula Turpeinen, Esa Hämäläinen, Mikko Haanpää, Marjut Leidenius, Matti J Tikkanen, Tomi S Mikkola
Circulating estrogens fluctuate during the menstrual cycle but it is not known whether this fluctuation is related to local hormone levels in adipose tissue. We analyzed estrogen concentrations and gene expression of estrogen-regulating enzymes in breast subcutaneous adipose tissue in premenopausal women with (n = 11) and without (n = 17) estrogen receptor-positive breast cancer. Estrone (E1 ) was the predominant estrogen in premenopausal breast adipose tissue, and E1 and mRNA expression of CYP19A1 in adipose tissue correlated positively with BMI...
May 23, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29789322/a-missing-piece-the-spiny-mouse-and-the-puzzle-of-menstruating-species
#4
REVIEW
Nadia Bellofiore, Fiona Cousins, Peter Temple-Smith, Hayley Dickinson, Jemma Evans
We recently discovered the first known menstruating rodent. With the exception of four bats and the elephant shrew, the common spiny mouse ( Acomys cahirinus ) is the only species outside the primate order to exhibit menses. There are few widely accepted theories on why menstruation developed as the preferred reproductive strategy of these select mammals, all of which reference the evolution of spontaneous decidualisation prior to menstrual shedding. Though menstruating species share several reproductive traits, there has been no identifiable feature unique to menstruating species...
July 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29788545/evaluation-of-aromatherapy-with-essential-oils-of-rosa-damascena-for-the-management-of-premenstrual-syndrome
#5
Naval Heydari, Maliheh Abootalebi, Neda Jamalimoghadam, Maryam Kasraeian, Masoumeh Emamghoreishi, Marzieh Akbarzaded
OBJECTIVE: To investigate the efficacy of aromatherapy with essential oils of Rosa damascena for the management of premenstrual syndrome (PMS). METHODS: The present triple-blind randomized clinical trial was conducted between March 5, 2016, and February 20, 2017, among female students attending Shiraz University of Medical Sciences, Shiraz, Iran, who experienced PMS, had a menstrual cycle of 24-35 days, were not using vitamin supplements or hormonal drugs, and did not have any underlying diseases...
May 22, 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29788311/adipose-tissue-proteomic-analyses-to-study-puberty-in-brahman-heifers
#6
L T Nguyen, L F Zacchi, B L Schulz, S S Moore, M R S Fortes
The adipose tissue has been recognized as an active endocrine organ which can modulate numerous physiological processes such as metabolism, appetite, immunity, and reproduction. The aim of this study was to look for differentially abundant proteins and their biological functions in the abdominal adipose tissue between pre- and postpubertal Brahman heifers. Twelve Brahman heifers were divided into 2 groups and paired on slaughter day. Prepubertal heifers had never ovulated and postpubertal heifers were slaughtered on the luteal phase of their second estrous cycle...
May 17, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29783035/estrogen-receptor-progesterone-receptor-cd8-expression-in-endometrium-of-women-of-unexplained-infertility
#7
Shilpi Gupta Dixit, Surajit Ghatak, Pratibha Singh, Shilajit Bhattacharya
OBJECTIVE: The present study aimed to investigate the changes of endometrial progesterone and estrogen receptors in luteal phase biopsy specimens of infertile women and find a correlation, if any, between these and CD8+ receptors in the same. METHODS: The study was conducted on luteal phase endometrial biopsy specimens of 30 women of Unexplained Infertility and 15 age matched controls. Paraffin sections were first H & E stained. A standardized immunohistochemical protocol was then used to localize the estrogen, progesterone and CD8+ receptors in these samples that were expressed as percentage positivity...
May 18, 2018: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29780028/induced-endometrial-trauma-endometrial-scratch-in-the-mid-luteal-menstrual-cycle-phase-preceding-first-cycle-ivf-icsi-versus-usual-ivf-icsi-therapy-study-protocol-for-a-randomised-controlled-trial
#8
Clare Pye, Robin Chatters, Judith Cohen, Kate Brian, Ying C Cheong, Susan Laird, Lamiya Mohiyiddeen, Jonathan Skull, Stephen Walters, Tracey Young, Mostafa Metwally
INTRODUCTION: Endometrial trauma commonly known as endometrial scratch (ES) has been shown to improve pregnancy rates in women with a history of repeated implantation failure undergoing in vitro fertilisation (IVF), with or without intracytoplasmic sperm injection (ICSI). However, the procedure has not yet been fully explored in women having IVF/ICSI for the first time. This study aims to examine the effect of performing an ES in the mid-luteal phase prior to a first-time IVF/ICSI cycle on the chances of achieving a clinical pregnancy and live birth...
May 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29778368/oral-dydrogesterone-for-luteal-phase-support-in-fresh-in-vitro-fertilization-cycles-a-new-standard
#9
REVIEW
Georg Griesinger, Christophe Blockeel, Herman Tournaye
Oral dydrogesterone has been used for luteal phase support on an empirical basis since the early days of in vitro fertilization (IVF) treatment. Systematic comparisons of oral dydrogesterone with vaginal progesterone, so far considered to be the standard of care, started to appear in the middle 2000s. Recently, a large, randomized, double-blind, double-dummy phase III trial on the use of daily 30 mg oral dydrogesterone versus daily 600 mg micronized vaginal progesterone for LPS in IVF was published. This company-sponsored trial confirmed the efficacy findings from previous independent researchers and firmly established the noninferiority of daily 30 mg oral dydrogesterone for luteal phase support...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29778367/role-of-gonadotropin-releasing-hormone-agonists-human-chorionic-gonadotropin-hcg-progesterone-and-estrogen-in-luteal-phase-support-after-hcg-triggering-and-when-in-pregnancy-hormonal-support-can-be-stopped
#10
REVIEW
Dominique de Ziegler, Paul Pirtea, Claus Yding Andersen, Jean Marc Ayoubi
Luteal phase support is mandatory in ovarian stimulation cycles in assisted reproductive technology owing to a deficit in LH pulsatility after the effects of exogenous hCG-used for triggering ovulation-vanish. This is classically accomplished by means of exogenous P administration, but emerging new options include microdoses of hCG and exogenous GnRH agonist. Although luteal phase support is commonly continued for up to 10 weeks into pregnancy, there is accumulating evidence that it can be stopped after the first ultrasound or even after a positive pregnancy test...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29778366/introduction-management-of-the-luteal-phase-in-assisted-reproductive-technology
#11
Georg Griesinger, David Meldrum
The increasing utilization of a gonadotropin-releasing hormone agonist ovulation trigger and the widespread use of artificial cycles for the transfer of frozen-thawed or donated embryos has renewed interest in the luteal phase in assisted reproductive technology. The "luteal phase defect" phenomenon is now understood as a continuum: there is less impairment with milder stimulation than with more intense ovarian stimulation, and less impairment after controlled ovarian stimulation and human chorionic gonadotropin ovulation triggering than after gonadotropin-releasing hormone agonist ovulation triggering, the latter being associated with rapid luteolysis...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29778102/effects-of-extending-the-length-of-pro-oestrus-in-an-oestradiol-and-progesterone-based-oestrus-synchronisation-program-on-ovarian-function-uterine-environment-and-pregnancy-establishment-in-beef-heifers
#12
J J de la Mata, R Núñez-Olivera, F Cuadro, D Bosolasco, V de Brun, A Meikle, G A Bó, A Menchaca
The aim of the present study was to investigate the effects of a strategy for extending pro-oestrus (the interval between luteolysis and ovulation) in an oestrus synchronisation protocol (named J-Synch) in beef heifers on follicular growth, sexual steroid concentrations, the oestrogen receptor ERα and progesterone receptors (PR) in the uterus, insulin-like growth factor (IGF) 1 and pregnancy rates. In Experiment 1, heifers treated with the new J-Synch protocol had a longer pro-oestrus period than those treated with the conventional protocol (mean (±s...
May 21, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29769477/enzyme-immunoassays-for-water-soluble-steroid-metabolites-in-the-urine-and-feces-of-japanese-macaques-macaca-fuscata-using-a-simple-elution-method
#13
Keiko Shimizu, Keiko Mouri
A simple, non-alcoholic extraction method for measuring estrogen and progesterone metabolites in excreta using enzyme immunoassays (EIAs) was developed in Japanese macaques. The obtained detection limits of EIAs using estrone conjugates (E1 C), pregnanediol glucuronide (PdG), and estriol glucuronide (E3 G) polyclonal antibodies with cross-reactivity to urinary and fecal steroid metabolites were 6.6 pg/ml, 2.1 ng/ml, and 0.35 ng/ml, respectively. These assays allowed the determination of E1 C, PdG, and E3 G from the excreta with good reproducibility and accuracy...
May 17, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29767754/mid-luteal-progesterone-a-marker-of-treatment-outcomes-in-couples-with-unexplained-infertility
#14
Karl R Hansen, Esther Eisenberg, Valerie Baker, Micah J Hill, Sixia Chen, Sara Talken, Michael P Diamond, Richard S Legro, Christos Coutifaris, Ruben Alvero, Randal D Robinson, Peter Casson, Gregory M Christman, Nanette Santoro, Heping Zhang, Robert A Wild
Context: Adequate luteal phase progesterone exposure is necessary to induce endometrial changes required for a successful pregnancy outcome. The relationship between low mid-luteal progesterone concentration and the outcome of live birth in ovarian stimulation with intrauterine insemination (OS-IUI) treatments is not defined. Objective: To determine the level of mid-luteal progesterone portending a low chance of live birth following OS-IUI in couples with unexplained infertility...
May 14, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29762856/vitamin-d-a-steroid-hormone-with-progesterone-like-activity
#15
G Monastra, S De Grazia, L De Luca, S Vittorio, V Unfer
OBJECTIVE: This review is aimed at demonstrating the progesterone-like activity exerted by the active form of vitamin D, or calcitriol (1,25(OH)2D). To achieve this outcome, we compared the effects in vivo and in vitro exerted by progesterone and vitamin D, with a special focus on the female reproductive system and pregnancy. MATERIALS AND METHODS: This is a literature review of the most important articles published in English on vitamin D as a hormone, mainly found by MEDLINE...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29754696/follicle-stimulating-hormone-receptor-protein-is-expressed-in-ovine-uterus-during-the-estrous-cycle-and-utero-placenta-during-early-pregnancy-an-immunohistochemical-study
#16
Anna T Grazul-Bilska, Arshi Reyaz, Veselina Valkov, Sheri T Dorsam, Dale A Redmer
Follicle stimulating hormone (FSH) is a well characterized gonadotropin that controls primarily development and functions of ovarian follicles in mammalian species. FSH binds to a specific G protein-coupled receptor (FSHR) belonging to the glycoprotein hormone receptor family that plays an essential role in reproduction. Although the primary location of FSHR is in the gonads (mainly in ovarian follicles), FSHR protein and/or mRNA have also been detected in extragonadal female reproductive tissues including embryo, placenta, endometrium, cervix, ovarian cancer tissues, and/or endometriotic lesions in several species...
May 11, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29754425/effects-of-oestradiol-for-luteal-phase-support-in-fresh-embryo-transfer-cycles-a-retrospective-cohort-study
#17
Wei Zhao, Yifeng Liu, Peng Xu, Yiqing Wu, Kai Chen, Xiaoyan Guo, Fan Zhang, Yun Huang, Linlin Zhu, Runjv Zhang, Dan Zhang
OBJECTIVE: Any benefit of oestradiol supplementation with progesterone for luteal support after fresh embryo transfer in in vitro fertilisation/intracytoplasmic sperm injection (IVF/ICSI) cycles remains controversial. In this study, we further addressed this question in cycles using gonadotropin-releasing hormone (GnRH) agonist for ovarian stimulation. DESIGN: A retrospective cohort study in a tertiary teaching and research hospital. PATIENT(S): A total of 1602 patients were given oestradiol valerate (E) in addition to progesterone(P) as luteal support...
May 12, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29742384/reproductive-biology-of-captive-female-southern-hairy-nosed-wombats-lasiorhinus-latifrons-part-2-oestrous-behaviour
#18
Alyce M Swinbourne, Clive J C Phillips, Tina Janssen, Allan Lisle, Tamara Keeley, Stephen D Johnston
The poor captive breeding success of southern hairy-nosed wombats (SHNWs; Lasiorhinus latifrons) has been attributed to the difficulty in accurately characterising oestrous behaviour and their relationship to circulating reproductive hormones. Over two wombat breeding seasons, the use of infrared cameras for 24-h remote behavioural monitoring and the analysis of urine samples collected from seven captive females, were investigated to determine the relationship between behaviour and changes in urinary progesterone metabolites (P4M)...
May 10, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29742383/reproductive-biology-of-captive-southern-hairy-nosed-wombats-lasiorhinus-latifrons-part-1-oestrous-cycle-characterisation
#19
Alyce M Swinbourne, Stephen D Johnston, Tina Janssen, Alan Lisle, Tamara Keeley
Southern hairy-nosed wombats (SHNWs: Lasiorhinus latifrons) do not breed well in captivity. To better understand their reproduction, daily urine samples were collected from nine captive females and analysed for volume (mL), specific gravity and a qualitative index of the number of epithelial cells, then stored at -20°C until samples could be analysed for progesterone metabolites (P4M). The mean oestrous cycle length was 35.1±2.4 days; however, individual cycle length ranged from 23 to 47 days. The mean luteal phase length was 20...
May 10, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29741787/gonadal-hormones-modulate-the-hpa-axis-and-the-sns-in-response-to-psychosocial-stress
#20
Efrat Barel, Randa Abu-Shkara, Raul Colodner, Refaat Masalha, Lila Mahagna, Or Chen Zemel, Ami Cohen
Exposure to stress activates both the hypothalamus-pituitary-adrenal (HPA) axis and the sympathetic nervous system (SNS). A growing body of research points to the contribution of sex hormones (testosterone, estrogen, and progesterone), the end products of the hypothalamus-pituitary-gonadal (HPG) axis, in modulating stress reactivity. The present study aimed at investigating the potential modulating role of sex hormones on HPA and SNS reactivity to psychosocial stress. The reactivity, induced by the Trier Social Stress Test, was analyzed by measuring the levels of cortisol and alpha-amylase (markers for SNS activity) in four saliva samples each of 21 men and 37 women (17 not using oral contraceptives and in their luteal phase, and 20 women using oral contraceptives)...
May 9, 2018: Journal of Neuroscience Research
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