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https://www.readbyqxmd.com/read/28726748/effect-of-air-pollution-on-menstrual-cycle-length-a-prognostic-factor-of-women-s-reproductive-health
#1
Anna Merklinger-Gruchala, Grazyna Jasienska, Maria Kapiszewska
Air pollution can influence women's reproductive health, specifically menstrual cycle characteristics, oocyte quality, and risk of miscarriage. The aim of the study was to assess whether air pollution can affect the length of the overall menstrual cycle and the length of its phases (follicular and luteal). Municipal ecological monitoring data was used to assess the air pollution exposure during the monitored menstrual cycle of each of 133 woman of reproductive age. Principal component analyses were used to group pollutants (PM10, SO₂, CO, and NOx) to represent a source-related mixture...
July 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28725187/lack-of-associations-between-female-hormone-levels-and-visuospatial-working-memory-divided-attention-and-cognitive-bias-across-two-consecutive-menstrual-cycles
#2
Brigitte Leeners, Tillmann H C Kruger, Kirsten Geraedts, Enrico Tronci, Toni Mancini, Fabian Ille, Marcel Egli, Susanna Röblitz, Lanja Saleh, Katharina Spanaus, Cordula Schippert, Yuangyuang Zhang, Michael P Hengartner
Background: Interpretation of observational studies on associations between prefrontal cognitive functioning and hormone levels across the female menstrual cycle is complicated due to small sample sizes and poor replicability. Methods: This observational multisite study comprised data of n = 88 menstruating women from Hannover, Germany, and Zurich, Switzerland, assessed during a first cycle and n = 68 re-assessed during a second cycle to rule out practice effects and false-positive chance findings. We assessed visuospatial working memory, attention, cognitive bias and hormone levels at four consecutive time-points across both cycles...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28723963/impact-of-thyroid-function-abnormalities-on-reproductive-hormones-during-menstrual-cycle-in-premenopausal-hiv-infected-females-at-nauth-nnewi-nigeria
#3
Nkiruka Rose Ukibe, Solomon Nwabueze Ukibe, Obiageli Fidelia Emelumadu, Chinedum Charles Onyenekwe, Joseph Eberendu Ahaneku, Anthony Osita Igwegbe, Ifeoma Nwamaka Monago, Amobi Linus Ilika
BACKGROUND: This was a prospective study designed to evaluate the impact of thyroid function abnormalities on reproductive hormones during menstrual cycle in HIV infected females at Nnamdi Azikiwe University Teaching Hospital Nnewi, South-East Nigeria. METHODS: The study randomly recruited 35 Symptomatic HIV infected females and 35 Symptomatic HIV infected females on antiretroviral therapy (HAART) for not less than six weeks from an HIV clinic and 40 apparently heathy control females among the hospital staff of NAUTH Nnewi...
2017: PloS One
https://www.readbyqxmd.com/read/28712426/negative-affect-is-unrelated-to-fluctuations-in-hormone-levels-across-the-menstrual-cycle-evidence-from-a-multisite-observational-study-across-two-successive-cycles
#4
Michael P Hengartner, Tillmann H C Kruger, Kirsten Geraedts, Enrico Tronci, Toni Mancini, Fabian Ille, Marcel Egli, Susanna Röblitz, Rainald Ehrig, Lanja Saleh, Katharina Spanaus, Cordula Schippert, Yuanyuan Zhang, Brigitte Leeners
BACKGROUND: Female sex hormones may play a crucial role in the occurrence of cycle-related mood disorders. However, the literature is inconsistent and methodologically stringent observational studies on the relationship between sex hormones and negative affect are lacking. METHODS: In this longitudinal multisite study from Hannover, Germany, and Zurich, Switzerland, we examined oestrogen, progesterone, luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone serum levels in association with negative affect as measured with the Positive and Negative Affect Schedule (PANAS)...
August 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28708539/ppar-expression-throughout-the-oestrous-cycle-in-the-bovine-endometrium
#5
B M Socha, M Łupicka, A A Szczepańska, A J Korzekwa
Peroxisome proliferator-activated receptors (PPARs) are a family of nuclear receptors that is composed of three isoforms: PPARα, PPARβ/δ and PPARγ. The ratio of two isoforms of PPARγ (1 and 2) varies among both species and tissues. The activity of PPARs can be modified by a number of endogenous compounds, including arachidonic acid (AA), its eicosanoid metabolites and synthetic ligands. Many studies have revealed that PPARs are important in reproduction. We hypothesized that the profiles of PPARs expression vary in the bovine endometrium during certain days of the oestrous cycle...
June 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708531/relationships-among-early-postpartum-luteal-activity-parity-and-insemination-outcomes-based-on-in-line-milk-progesterone-profiles-in-canadian-holstein-cows
#6
Tony C Bruinjé, Marcos G Colazo, Mohanathas Gobikrushanth, Divakar J Ambrose
The objectives of this retrospective study were to use in-line milk progesterone (mP4) data to investigate relationships of (1) commencement of luteal activity (CLA), and (2) luteal phase (LP) length and frequency preceding first postpartum AI, with parity and AI outcomes in Canadian Holstein cows. Starting 21 ± 1 days postpartum (DPP), levels of mP4 were assessed every 2.2 ± 2.0 d through an automated in-line milk analysis system (Herd Navigator™, DeLaval International, Tumba, Sweden) until ∼55 d after first or second AI in 748 Holstein cows from two herds...
May 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/28694156/sex-and-menstrual-cycle-influences-on-three-aspects-of-attention
#7
Belinda Pletzer, Ti-Anni Harris, Tuulia Ortner
Sex differences and menstrual cycle influences have been investigated in a variety of cognitive abilities, but results regarding attention are comparably sparse. In the present study, 35 men and 32 naturally cycling women completed three attention tasks, which are commonly used in neuropsychological assessment situations. All participants completed two sessions, which were time-locked to the follicular (low progesterone) and luteal cycle phase (high progesterone) in women. The results reveal higher operation speed during sustained attention in men, but no sex differences in selected and divided attention...
July 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28692631/increased-protein-requirements-in-female-athletes-after-variable-intensity-exercise
#8
Denise J Wooding, Jeff E Packer, Hiroyuki Kato, Daniel W D West, Glenda Courtney-Martin, Paul B Pencharz, Daniel R Moore
PURPOSE: Protein requirements are primarily studied in the context of resistance or endurance exercise with little research devoted to variable-intensity intermittent exercise characteristic of many team sports. Further, female populations are underrepresented in dietary sports science studies. We aimed to determine a dietary protein requirement in active females performing variable-intensity intermittent exercise using the indicator amino acid oxidation (IAAO) method. We hypothesized that these requirements would be greater than current IAAO-derived estimates in non-active adult males...
July 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28684053/three-step-method-for-menstrual-and-oral-contraceptive-cycle-verification
#9
Mia A Schaumberg, David G Jenkins, Xanne A K Janse de Jonge, Lynne M Emmerton, Tina L Skinner
OBJECTIVES: Fluctuating endogenous and exogenous ovarian hormones may influence exercise parameters; yet control and verification of ovarian hormone status is rarely reported and limits current exercise science and sports medicine research. The purpose of this study was to determine the effectiveness of an individualised three-step method in identifying the mid-luteal or high hormone phase in endogenous and exogenous hormone cycles in recreationally-active women and determine hormone and demographic characteristics associated with unsuccessful classification...
August 26, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28676251/the-not-so-bitter-pill-effects-of-combined-oral-contraceptives-on-peripheral-physiological-indicators-of-emotional-reactivity
#10
Diana Armbruster, Clemens Kirschbaum, Alexander Strobel
Combined oral contraceptives (COC) are used by millions of women worldwide. Although findings are not entirely consistent, COC have been found to impact on brain function and, thus, to modulate affective processes. Here, we investigated electro-physiological responses to emotional stimuli in free cycling women in both the early follicular and late luteal phase as well as in COC users. Skin conductance response (SCR), startle reflex, corrugator and zygomaticus activity were assessed. COC users showed reduced overall startle magnitude and SCR amplitude, but heightened overall zygomaticus activity, although effect sizes were small...
July 19, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28670921/progesterone-progesterone-estradiol-and-art-outcomes-in-day-5-transfer-cycles
#11
Ritika Arora, Crystal Chan, Xiang Y Ye, Ellen M Greenblatt
The objective of this study was to assess the effects of elevated luteal-phase progesterone levels (PE) and high progesterone/estradiol ratio ('P/E2' ratio) on IVF outcomes, exclusively in GnRH-antagonist cycles with day-5 embryo transfer. PE was not found to have a significant effect on implantation or clinical pregnancy rate (CPR) (OR 0.56, 95% CI 0.25-1.25, p = .16). Elevated 'P/E2' ratio (≥0.55) on trigger day was associated with a poorer response to stimulation and lower clinical pregnancy rates (OR 0...
July 2, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28670155/ruptured-corpus-luteal-cyst-prediction-of-clinical-outcomes-with-ct
#12
Myoung Seok Lee, Min Hoan Moon, Hyunsik Woo, Chang Kyu Sung, Hye Won Jeon, Taek Sang Lee
OBJECTIVE: To evaluate the determinant pretreatment CT findings that can predict surgical intervention for patients suffering from corpus luteal cyst rupture with hemoperitoneum. MATERIALS AND METHODS: From January 2009 to December 2014, a total of 106 female patients (mean age, 26.1 years; range, 17-44 years) who visited the emergency room of our institute for acute abdominal pain and were subsequently diagnosed with ruptured corpus luteal cyst with hemoperitoneum were included in the retrospective study...
July 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28670129/stress-reactivity-and-emotion-in-premenstrual-syndrome
#13
Qing Liu, Yongshun Wang, Cornelis Hermanus van Heck, Wei Qiao
BACKGROUND: Hormone level fluctuation across the menstrual cycle causes women to experience negative emotions and also affects their mood regulation and stress sensitivity. However, the stress reactivity and emotional variations in women with premenstrual syndrome (PMS), who are especially sensitive to the variations in hormone cycles, have not been explained. METHODS: The present study used an electroencephalogram (EEG) stress evaluation test, a physiology stress evaluation test, and the positive affect and negative affect scale (PANAS) to evaluate the stress reactivity pattern and emotional state of women with PMS...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28663739/impact-of-mid-luteal-phase-gnrh-agonist-administration-on-reproductive-outcomes-in-gnrh-agonist-triggered-cycles-a-randomized-controlled-trial
#14
Abdelhamid Benmachiche, Sebti Benbouhedja, Abdelali Zoghmar, Amel Boularak, Peter Humaidan
OBJECTIVE: To explore whether the addition of a mid-luteal bolus of GnRH agonist (GnRHa) improves the implantation rate (IR) in in vitro fertilization (IVF) cycles. DESIGN: A randomized controlled trial. SETTING: Private IVF center. PATIENTS: 328 IVF/intracytoplasmic sperm injection patients were triggered with GnRHa and received 1,500 IU HCG on the day of oocyte pick-up (OPU) in addition to a standard luteal phase support (LPS)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28661216/luteal-phase-protocol-in-poor-ovarian-response-a-comparative-study-with-an-antagonist-protocol
#15
Yan Wu, Fu-Chun Zhao, Yong Sun, Pei-Shu Liu
Objective This retrospective study compared the effect of the luteal phase ovarian stimulation protocol (LP group) with the gonadotrophin-releasing hormone (GnRH) antagonist protocol (AN group) in women with poor ovarian responses. Methods Ovarian stimulation was initiated with 225 IU of human gonadotrophin (hMG) daily. When the dominant follicle diameter exceeded 13 mm, 0.25 mg of a GnRH antagonist was used daily until human chorionic gonadotrophin (HCG) administration in the AN group. A GnRH antagonist was not used in the LP group...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28658753/effect-of-menstrual-cycle-phases-on-plasma-lipid-and-lipoprotein-levels-in-regularly-menstruating-women
#16
Shilpi Vashishta, Sushila Gahlot, Rajni Goyal
INTRODUCTION: Physiological cyclic variability in levels of sex hormones during a menstrual cycle may possibly have an impact on lipids, lipoprotein levels and therefore on cardiovascular health status of females. AIM: To ascertain the effect of menstrual cycle phases on the levels of cardiovascular risk predictors i.e., plasma lipids and lipoproteins in healthy menstruating women. MATERIALS AND METHODS: In the present study, 111 healthy regularly menstruating females aged 15-45 years were examined at two points of a menstrual cycle i...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28647355/random-start-ovarian-stimulation-in-women-desiring-elective-cryopreservation-of-oocytes
#17
Nigel Pereira, Anna Voskuilen-Gonzalez, Kolbe Hancock, Jovana P Lekovich, Glenn L Schattman, Zev Rosenwaks
The current study investigates the utility of random-start ovarian stimulation in women desiring elective oocyte cryopreservation. Women in the study cohort underwent random-start ovarian stimulation, and were subdivided based on the phase of the menstrual cycle that ovarian stimulation began, i.e. early follicular, late follicular or luteal phase. Women undergoing conventional cycle day (CD) 2/3 ovarian stimulation start were controls. A total of 1302 women were included - 859 (66.0%) conventional CD 2/3, 342 (26...
June 12, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28642801/differences-in-the-tongue-features-of-primary-dysmenorrhea-patients-and-controls-over-a-normal-menstrual-cycle
#18
Jihye Kim, Haebeom Lee, Hyunho Kim, Jong Yeol Kim, Keun Ho Kim
BACKGROUND: The aims of this study were to investigate the relationships between tongue features and the existence of menstrual pain and to provide basic information regarding the changes in tongue features during a menstrual cycle. METHODS: This study was conducted at the Kyung Hee University Medical Center. Forty-eight eligible participants aged 20 to 29 years were enrolled and assigned to two groups according to their visual analogue scale (VAS) scores. Group A included 24 females suffering from primary dysmenorrhea (PD) caused by qi stagnation and blood stasis syndrome with VAS ≥ 4...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28638367/gnrh-agonist-trigger-and-lh-activity-luteal-phase-support-versus-hcg-trigger-and-conventional-luteal-phase-support-in-fresh-embryo-transfer-ivf-icsi-cycles-a-systematic-prisma-review-and-meta-analysis
#19
REVIEW
Thor Haahr, Matheus Roque, Sandro C Esteves, Peter Humaidan
INTRODUCTION: The use of GnRH agonist (GnRHa) for final oocyte maturation trigger in oocyte donation and elective frozen embryo transfer cycles is well established due to lower ovarian hyperstimulation syndrome (OHSS) rates as compared to hCG trigger. A recent Cochrane meta-analysis concluded that GnRHa trigger was associated with reduced live birth rates (LBRs) in fresh autologous IVF cycles compared to hCG trigger. However, the evidence is not unequivocal, and recent trials have found encouraging reproductive outcomes among couples undergoing GnRHa trigger and individualized luteal LH activity support...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28633739/autoimmune-progesterone-dermatitis-presenting-as-fixed-drug-eruption-a-case-report
#20
Raya Mokhtari, Mozhdeh Sepaskhah, Fatemeh Sari Aslani, Ladan Dastgheib
Autoimmune progesterone dermatitis (APD) is a rare disorder characterized by periodic skin lesions that erupt during the luteal phase of the menstrual cycle. Clinical manifestations of APD is caused by an unusual allergy to progesterone and has a wide range of clinical manifestations from eczema and urticaria to angioedema and erythema multiforme. A 46-year-old woman described recurrent, round erythematous plaques on the lower lip, both forearms and buttocks. These skin eruptions waxed and waned for 10 months, reoccurring 3-4 days before menstruation...
June 15, 2017: Dermatology Online Journal
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