keyword
MENU ▼
Read by QxMD icon Read
search

lutein

keyword
https://www.readbyqxmd.com/read/29332050/supplemental-retinal-carotenoids-enhance-memory-in-healthy-individuals-with-low-levels-of-macular-pigment-in-a-randomized-double-blind-placebo-controlled-clinical-trial
#1
Rebecca Power, Robert F Coen, Stephen Beatty, Riona Mulcahy, Rachel Moran, Jim Stack, Alan N Howard, John M Nolan
BACKGROUND: There is a biologically plausible rationale whereby the dietary carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ), which are collectively referred to as macular pigment (MP) in the central retina (macula), support the maintenance of cognition via their antioxidant and anti-inflammatory properties. OBJECTIVE: To investigate the impact of supplemental L, Z, and MZ on memory, executive function, and verbal fluency among healthy individuals with low MP levels...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29330967/the-impact-of-bisphenol-s-on-bovine-granulosa-and-theca-cells
#2
K A Campen, M Lavallee, Cmh Combelles
Bisphenol S (BPS) is an endocrine-disrupting chemical with multiple potential mechanisms of action, including as an oestrogen receptor agonist. BPS is increasingly used in plastics and thermal receipts as a substitute for bisphenol A, which has been phased out due to concerns about human health implications. The ability of BPS to alter female reproductive function in mammals has not been widely studied, despite the importance of normal hormone signalling for female reproduction. The aim of this study was to investigate how BPS (in a wide range of doses, including very low doses) affects granulosa cell and theca cell steroid hormone production and cell viability in the bovine...
January 12, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29326060/ovulation-is-associated-with-the-lh-dependent-induction-of-pla2g4aa-in-zebrafish
#3
Haipei Tang, Le Wang, Yu Chen, Jianan He, Ling Qu, Yin Guo, Yun Liu, Xiaochun Liu, Haoran Lin
The effects of the preovulatory luteinizing hormone (LH) surge on the ovulatory process are mediated by prostaglandins (PGs), the synthesis of which involves prostaglandin synthetase and cytosolic phospholipase A2 (cPLA2). In our previous study, we systematically investigated the function of prostaglandin endoperoxide synthase (ptgs) genes on ovulation in zebrafish. However, the role of cPLA2 in ovulation was not determined in zebrafish. In this study, we investigated the function of cpla2α in PGs production and ovulation in periovulatory follicles...
January 8, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29325133/the-efficacy-of-24-month-metformin-for-improving-menses-hormone-and-metabolic-profiles-in-polycystic-ovary-syndrome
#4
Po-Kai Yang, Chih-Yuan Hsu, Mei-Jou Chen, Mei-Yu Lai, Zheng-Rong Li, Chen-Hsin Chen, Shee-Uan Chen, Hong-Nerng Ho
Context: The long-term effects of metformin in women with polycystic ovarian syndrome (PCOS) are inadequately studied. Objective: The effects of metformin on women with PCOS over 24-month with respect to menses, hormones and metabolic profiles are assessed. Design: Prospective cohort. Setting: A reproductive endocrinology clinic in a university-affiliated medical center. Patients: 119 women with PCOS, defined by the Rotterdam criteria, were enrolled...
January 9, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29324670/dietary-carotenoid-intakes-and-prostate-cancer-risk-a-case-control-study-from-vietnam
#5
Dong Van Hoang, Ngoc Minh Pham, Andy H Lee, Duong Nhu Tran, Colin W Binns
The incidence of prostate cancer has increased in Vietnam, but there have been few studies of the risk factors associated with this change. This retrospective case-control study investigated the relation of the intake of carotenoids and their food sources to prostate cancer risk. A sample of 652 participants (244 incident prostate cancer patients, aged 64-75 years, and 408 age frequency-matched controls) were recruited in Ho Chi Minh City during 2013-2015. The habitual diet was ascertained with a validated food-frequency questionnaire, and other factors including demographic and lifestyle characteristics were assessed via face-to-face interviews by trained nurses...
January 11, 2018: Nutrients
https://www.readbyqxmd.com/read/29322011/safety-evaluation-of-bon-sant%C3%A3-cleanser%C3%A2-polyherbal-in-male-wistar-rats-further-investigations-on-androgenic-and-toxicological-profile
#6
O Awodele, O E Kale, A O Odewabi, M Ekor, B A Salau, A O Adefule-Ositelu
Background: The global increase in acceptance and use of herbal remedies in recent times is still accompanied with poor knowledge of their potential adverse effects and the toxicological implications of their use are underestimated. Methods: Bon-santé Cleanser® (BSC), a polyherbal containing Anogeissus leiocarpus, Terminalia ivorensis, Massularia acuminate and Macuna pruriens, is an "energizer and hormone booster". We assessed the effect of BSC on reproductive function after administration for 60 days in male Wistar rats...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321687/impact-of-biofortified-maize-consumption-on-serum-carotenoid-concentrations-in-zambian-children
#7
Amanda C Palmer, Neal E Craft, Kerry J Schulze, Maxwell Barffour, Justin Chileshe, Ward Siamusantu, Keith P West
Biofortified maize, designed as an intervention strategy to prevent vitamin A deficiency, can provide upwards of 15 μg β-carotene per g dry weight. Some varieties also have elevated concentrations of other carotenoids. We conducted a cluster randomized, controlled feeding trial in rural Zambia to test the impact of daily consumption of biofortified maize over a 6-month period on vitamin A status. Serum concentrations of retinol and carotenoids were assessed by high-performance liquid chromatography. Data on circulating carotenoids by intervention group in 679 children are reported here...
January 10, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29319312/induced-high-yield-production-of-zeaxanthin-lutein-and-%C3%AE-carotene-by-a-mutant-of-chlorella-zofingiensis
#8
Weiping Huang, Yan Lin, Mingxia He, Yuhao Gong, Junchao Huang
Natural resources of zeaxanthin are extremely limited. A Chlorella zofingiensis mutant (CZ-bkt1), which could accumulate high amounts of zeaxanthin, was generated and characterized. CZ-bkt1 was achieved by treating the algal cells with a chemical mutagen followed by a colour-based colony screening approach. CZ-bkt1 was found to consist of a dysfunctional carotenoid ketolase, leading to the accumulation of zeaxanthin rather than its downstream ketocarotenoid astaxanthin. Light irradiation, glucose, NaCl, and nitrogen deficiency all induced CZ-bkt1 to accumulate zeaxanthin...
January 10, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29319133/the-assessment-of-testosterone-and-radioisotopic-index-of-bone-metabolism-and-bone-mineral-density-in-men-with-testosterone-deficiency-after-one-year-of-testosterone-therapy
#9
Wieslaw Tryniszewski, Grzegorz Kamiński, Zbigniew Maziarz, Michal Nowak, Mariusz Gadzicki, Maciej Radek
BACKGROUND: Testosterone deficiency in men is characterized by typical symptoms of hypogonadism and negative influence on the preservation of bone mass. In this study, we analysed the relationship between testosterone concentration and bone metabolism. Moreover, we assessed the impact of one-year compensation of testosterone deficiency in elderly men on bone metabolism and bone mineral density. Radioisotopic methods of bone metabolism assessment provide new research opportunities. MATERIALS AND METHODS: Men with total testosterone concentration (TT) ≤ 3 ng/ml were included into this study...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29317238/gender-differences-in-mrna-expression-of-aquaporin-8-and-glutathione-peroxidase-in-cataractous-lens-following-intake-of-an-antioxidant-supplement
#10
Rijo Hayashi, Shimmin Hayashi, Miki Sakai, Kiyomi Arai, Makoto Chikuda, Shigeki Machida
Antioxidants can decrease oxidative damage and prevent age-related ocular disease. Our previous investigation on human aqueous humor following intake of a lutein-containing antioxidant supplement reported an increase in the scavenging activity of superoxide in both genders and an increase in the amount of hydrogen peroxide (H2O2) in females. Aquaporin 8 (AQP8) is a diffusion facilitator of H2O2 and glutathione peroxidase (Gpx) is a H2O2 scavenging enzyme. The correlation between AQP8 and Gpx may be the key to determining how oxidative stress in the aqueous humor affects the lens after intake of antioxidant supplements...
January 6, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29315797/high-luteinizing-hormone-weakens-urinary-continence-mechanisms-in-association-with-prostaglandin-e2-elevation-in-a-postmenopausal-rat-model
#11
Tomohiro Eriguchi, Naoki Kawamorita, Natsuho Hayashi, Yohei Satake, Hideaki Izumi, Yasuhiro Kaiho, Yoichi Arai
AIMS: To explore the role of luteinizing hormone (LH) in the urinary continence mechanism, urethral function was investigated using a postmenopausal rat model with high serum LH concentrations and the postmenopausal rat model given a gonadotropin releasing hormone (GnRH) antagonist to lower LH concentrations. METHODS: Adult female rats were divided into: 1) sham group; 2) ovariectomy group (OVX) with removal of bilateral ovaries; 3) OVX and GnRH-antagonist administered group (OVX + G); and 4) sham and GnRH-antagonist administered group (Sham + G)...
January 9, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29315457/evaluation-of-sex-hormones-and-sperm-parameters-in-male-epileptic-patients
#12
L Ocek, H Tarhan, F I Uludağ, A Sarıteke, C Köse, A Colak, F Zorlu, Y Zorlu
OBJECTIVES: The aim of this study was to investigate the effect of carbamazepine (CBZ) and sodium valproate (VPA) monotherapy on sexual functions, sex hormones, and semen analysis and quality in male patients with epilepsy. METHODS: A total of 59 male patients with epilepsy, of which 30 were on VPA monotherapy and 29 were on CBZ monotherapy, were included in the study between January 2015 and March 2016. A control group was established with 30 healthy males. Luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin (PRL), free testosterone (fT), estradiol (E2), sex hormone-binding globulin (SHBG) levels and bioactive testosterone (BAT)/bioactive estradiol (BAE), and BAT/LH ratio were studied in groups...
January 7, 2018: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29313753/compared-to-an-oatmeal-breakfast-two-eggs-day-increased-plasma-carotenoids-and-choline-without-increasing-trimethyl-amine-n-oxide-concentrations
#13
Amanda Missimer, Maria Luz Fernandez, Diana M DiMarco, Gregory H Norris, Christopher N Blesso, Ana Gabriela Murillo, Marcela Vergara-Jimenez, Bruno S Lemos, Isabel Medina-Vera, Olga V Malysheva, Marie A Caudill
BACKGROUND: Habitual consumption of eggs has been hypothesized to positively modify biomarkers of cardiovascular disease risk through proposed antioxidant properties. OBJECTIVES: To examine this relationship, 50 young, healthy men and women were enrolled into a randomized crossover clinical intervention. METHODS: Participants consumed either 2 eggs per day or one packet of oatmeal a day for 4 weeks, followed by a 3-week wash-out and crossed over to the alternate breakfast...
January 9, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29313033/detection-of-ovulation-a-review-of-currently-available-methods
#14
REVIEW
Hsiu-Wei Su, Yu-Chiao Yi, Ting-Yen Wei, Ting-Chang Chang, Chao-Min Cheng
The ability to identify the precise time of ovulation is important for women who want to plan conception or practice contraception. Here, we review the current literature on various methods for detecting ovulation including a review of point-of-care device technology. We incorporate an examination of methods to detect ovulation that have been developed and practiced for decades and analyze the indications and limitations of each-transvaginal ultrasonography, urinary luteinizing hormone detection, serum progesterone and urinary pregnanediol 3-glucuronide detection, urinary follicular stimulating hormone detection, basal body temperature monitoring, and cervical mucus and salivary ferning analysis...
September 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/29312842/bladder-neck-collagen-injection-in-the-treatment-of-congenital-retrograde-ejaculation-a-case-report
#15
Basri Cakiroglu, Orhun Sinanoglu, Ersan Arda
The present study describes the first successful treatment of a congenital retrograde ejaculation case with a submucosal collagen injection to the bladder neck. A 28-year-old male (height 170 cm, weight 80 kg) attended to the urology outpatient clinic with complaints of scattered urine stream and absence of ejaculation. The laboratory tests, including hormone profile (follicle stimulating hormone, luteinizing hormone, and testosterone) and the routine blood count were within normal ranges, whereas semen analysis demonstrated a total absence of ejaculation...
November 3, 2017: Curēus
https://www.readbyqxmd.com/read/29311296/ibuprofen-alters-human-testicular-physiology-to-produce-a-state-of-compensated-hypogonadism
#16
David Møbjerg Kristensen, Christèle Desdoits-Lethimonier, Abigail L Mackey, Marlene Danner Dalgaard, Federico De Masi, Cecilie Hurup Munkbøl, Bjarne Styrishave, Jean-Philippe Antignac, Bruno Le Bizec, Christian Platel, Anders Hay-Schmidt, Tina Kold Jensen, Laurianne Lesné, Séverine Mazaud-Guittot, Karsten Kristiansen, Søren Brunak, Michael Kjaer, Anders Juul, Bernard Jégou
Concern has been raised over increased male reproductive disorders in the Western world, and the disruption of male endocrinology has been suggested to play a central role. Several studies have shown that mild analgesics exposure during fetal life is associated with antiandrogenic effects and congenital malformations, but the effects on the adult man remain largely unknown. Through a clinical trial with young men exposed to ibuprofen, we show that the analgesic resulted in the clinical condition named "compensated hypogonadism," a condition prevalent among elderly men and associated with reproductive and physical disorders...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29306822/celecoxib-a-cyclooxygenase-2-inhibitor-offers-chemoprevention-against-reproductive-and-neurobehavioural-abnormalities-induced-by-atrazine-in-male-wistar-rats
#17
O E Kale, T O Oyesola, F S Raji
The cyclooxygenase-2/prostanoid pathway (COX-2) serves as a potential therapeutic target in various pathological conditions. Thus, the modulatory effect of celecoxib (CXB), a COX-2 inhibitor, in atrazine-induced toxicity was investigated. Five groups (n = 6 rats per group) of adult male Wistar rats received corn oil (2 ml/kg), atrazine (ATZ, 300 mg/kg) and CXB (5.7 mg/kg) respectively and their combinations via the oral route. Results obtained showed reduced (p < 0.05) sperm motility (25.8%) and counts (27...
December 30, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29305568/novel-compound-heterozygous-variants-in-the-lhcgr-gene-identified-in-a-subject-with-leydig-cell-hypoplasia-type-1
#18
Yufei Xu, Yulin Chen, Niu Li, Xuyun Hu, Guoqiang Li, Yu Ding, Juan Li, Yiping Shen, Xiumin Wang, Jian Wang
BACKGROUND: Leydig cell hypoplasia (LCH) is a rare disease and one of the causes of male disorder of sexual differentiation (DSD). Inactivating mutations in the luteinizing hormone/chorionic gonadotropin receptor (LHCGR) gene account for the underlying LCH pathogenicity. This study aimed to analyze the clinical presentation and diagnosis as well as highlight the molecular characteristics of a subject with LCH type 1. CASE PRESENTATION: Clinical data were collected from the subject and analyzed...
January 6, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29301980/mir-210-and-gpd1l-regulate-edn2-in-primary-and-immortalized-human-granulosa-lutein-cells
#19
Ketan Shrestha, Adepeju Esther Onasanya, Iris Eisenberg, Noa Wigoda, Simcha Yagel, Ronit Yalu, Rina Meidan, Tal Imbar
Endothelin-2 (EDN2), expressed at a narrow window during the periovulatory period, critically affects ovulation and corpus luteum (CL) formation. LH (acting mainly via cAMP) and hypoxia are implicated in CL formation; therefore, we aimed to elucidate how these signals regulate EDN2 using human primary (hGLCs) and immortalized (SVOG) granulosa-lutein cells. The hypoxiamiR, microRNA-210 (miR-210) was identified as a new essential player in EDN2 expression. Hypoxia (either mimetic compound-CoCl2, or low O2) elevated hypoxia inducible factor 1A (HIF1A), miR-210, and EDN2...
January 4, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29300925/progesterone-mediated-inhibition-of-the-gnrh-pulse-generator-differential-sensitivity-as-a-function-of-sleep-status
#20
Su Hee Kim, Jessica A Lundgren, Ruchi Bhabhra, Jessicah S Collins, James T Patrie, Christine M Burt Solorzano, John C Marshall, Christopher R McCartney
Context: During normal early puberty, luteinizing hormone (LH) pulse frequency is low while awake but increases during sleep. Mechanisms underlying such changes are unclear, but a small study in early pubertal girls suggested that differential wake-sleep sensitivity to progesterone negative feedback plays a role. Objective: To test the hypothesis that progesterone acutely reduces waking LH pulse frequency more than sleep-associated pulse frequency in late pubertal girls...
December 28, 2017: Journal of Clinical Endocrinology and Metabolism
keyword
keyword
40563
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"