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vitamin d and infertility

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https://www.readbyqxmd.com/read/28333357/dietary-patterns-foods-and-nutrients-in-male-fertility-parameters-and-fecundability-a-systematic-review-of-observational-studies
#1
Albert Salas-Huetos, Mònica Bulló, Jordi Salas-Salvadó
BACKGROUND: Infertility is a global public health issue, affecting 15% of all couples of reproductive age. Male factors, including decreased semen quality, are responsible for ~25% of these cases. The dietary pattern, the components of the diet and nutrients have been studied as possible determinants of sperm function and/or fertility. OBJECTIVE AND RATIONALE: Previous systematic reviews have been made of the few heterogeneous low-quality randomized clinical trials (RCTs) conducted in small samples of participants and investigating the effect of specific nutrients and nutritional supplements on male infertility...
March 10, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28326519/influence-of-diet-on-the-risk-of-developing-endometriosis
#2
Joanna Jurkiewicz-Przondziono, Magdalena Lemm, Anna Kwiatkowska-Pamuła, Ewa Ziółko, Mariusz K Wójtowicz
Endometriosis is a hormone-dependent chronic inflammatory disease characterized by the presence of endometrium beyond the uterine cavity. The disease affects 5-15% of women of child-bearing age, 30-50% of whom suffer from infertility. Understanding the role of dietary factors in the development of endometriosis is critical to development of effective dietary instructions for prevention. Existing studies concerning nutrition and endometriosis suggest that diet is a potentially modifiable risk factor for endometriosis...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28131909/differential-gene-expression-by-1-25-oh-2d3-in-an-endometriosis-stromal-cell-line
#3
Sue Ann Ingles, Liang Wu, Benjamin T Liu, Yibu Chen, Chun-Yeh Wang, Claire Templeman, Doerthe Brueggmann
Endometriosis is a common female reproductive disease characterized by invasion of endometrial cells into other organs, frequently causing pelvic pain and infertility. Alterations of the vitamin D system have been linked to endometriosis incidence and severity. To shed light on the potential mechanism for these associations, we examined the effects of 1,25(OH)2D3 on gene expression in endometriosis cells. Stromal cell lines derived from endometriosis tissue were treated with 1,25(OH)2D3, and RNA-seq was used to identify genes differentially expressed between treated and untreated cells...
January 28, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28119950/optimizing-inflammatory-bowel-disease-for-successful-in-vitro-fertilization
#4
Jason J Pan, Mora Cannon, Edward Kane, Gauree Konijeti
We present a nulliparous woman with mild to moderate ulcerative colitis (UC) and multiple failed cycles of in vitro fertilization (IVF) in whom we achieved a successful, viable pregnancy following clinical and endoscopic UC remission. Infertile patients with inflammatory bowel disease who have failed multiple cycles of IVF should try to achieve clinical remission and mucosal healing (absence of erosions or ulcers) prior to reattempting conception. Furthermore, deficiencies in vitamin B12, vitamin D, and iron should be addressed...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28102491/shedding-new-light-on-female-fertility-the-role-of-vitamin-d
#5
REVIEW
Giovanna Muscogiuri, Barbara Altieri, Cristina de Angelis, Stefano Palomba, Rosario Pivonello, Annamaria Colao, Francesco Orio
In the last decades several studies suggested that vitamin D is involved in the modulation of the reproductive process in women due to the expression of VDR and 1α-hydroxylase in reproductive tissues such as ovary, uterus, placenta, pituitary and hypothalamus. Vitamin D has also a role in the regulation of sex hormone steroidogenesis. Increasing evidence suggests that vitamin D might have a regulatory role in polycystic ovary syndrome (PCOS)-associated symptoms, including ovulatory dysfunction, insulin resistance and hyperandrogenism...
January 19, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28090459/anti-m%C3%A3-llerian-hormone-as-a-predictor-of-polycystic-ovary-syndrome-treated-with-clomiphene-citrate
#6
Andon Hestiantoro, Yuwono Sri Negoro, Yohana Afrita, Budi Wiweko, Kanadi Sumapradja, Muharam Natadisastra
OBJECTIVE: This study aimed to determine the threshold of anti-Müllerian hormone (AMH) as predictor of follicular growth failure in polycystic ovary syndrome (PCOS) patients treated with clomiphene citrate (CC). METHODS: Fifty female subjects with PCOS were recruited and divided into two groups based on successful and unsuccessful follicular growth. Related variables such as age, infertility duration, cigarette smoking, use of Moslem hijab, sunlight exposure, fiber intake, body mass index, waist circumference, AMH level, 25-hydroxy vitamin D level, and growth of dominant follicles were obtained, assessed, and statistically analyzed...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28030942/the-role-of-vitamin-d-in-reproductive-dysfunction-in-women-a-systematic-review
#7
REVIEW
Patrycja Skowrońska, Ewa Pastuszek, Waldemar Kuczyński, Mariusz Jaszczoł, Paweł Kuć, Grzegorz Jakiel, Izabela Wocławek-Potocka, Krzysztof Łukaszuk
Vitamin D is essential for the proper functioning of the human body. There is also evidence of its strong association with fertility problems in women. This review aims to evaluate the relationship between vitamin D and diseases affecting women's fertility (polycystic ovarian syndrome (PCOS), uterine leiomyomas and endometriosis), and in vitro fertilization (IVF) outcome. A systematic review of the literature was conducted in Scopus and PubMed for relevant English language publications since 1989. Vitamin D influences the functioning of the reproductive system in women and has been associated with PCOS, uterine leiomyomas, endometriosis and in vitro fertilization (IVF) outcome...
December 23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/27977320/selection-of-high-quality-spermatozoa-may-be-promoted-by-activated-vitamin-d-in-the-woman
#8
Lasse Bøllehuus Hansen, Anders Rehfeld, Rosanna de Neergaard, John Erik Nielsen, Lea Hedegaard Iversen, Ida Marie Boisen, Li Juel Mortensen, Beate Lanske, Kristian Almstrup, Elisabeth Carlsen, Anders Hayden Berg, Niels Jørgensen, Anders Nyboe Andersen, Anders Juul, Martin Blomberg Jensen
CONTEXT: The vitamin D receptor (VDR) and enzymes involved in activation (CYP2R1, CYP27B1) and inactivation (CYP24A1) of vitamin D are expressed in ovary, testes, and spermatozoa. OBJECTIVE: Determine responsiveness to 1,25-dihydroxyvitamin D (1,25(OH)2D3) in spermatozoa from normal and infertile men, identify site of exposure and how 1,25(OH)2D3 influences sperm function. DESIGN: Spermatozoa expressing VDR, CYP2R1, CYP27B1, and CYP24A1 were analyzed in normal and infertile men...
December 15, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27927849/the-effect-of-serum-vitamin-d-levels-on-ovarian-reserve-markers-a-prospective-cross-sectional-study
#9
Panagiotis Drakopoulos, Arne van de Vijver, Valerie Schutyser, Stevan Milatovic, Ellen Anckaert, Johan Schiettecatte, Christophe Blockeel, Michel Camus, Herman Tournaye, Nikolaos P Polyzos
STUDY QUESTION: Is there any association between serum 25-OH vitamin D levels and ovarian reserve markers in infertile women? SUMMARY ANSWER: Vitamin D is not associated with the ovarian reserve markers, anti-mullerian hormone (AMH) and antral follicle count (AFC), in infertile women. WHAT IS KNOWN ALREADY: The mechanism underlying the relationship between vitamin D deficiency and reproduction is still unclear; however, evidence indicates a potential direct negative impact on ovarian function...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27795706/inositol-treatment-and-art-outcomes-in-women-with-pcos
#10
REVIEW
Deepika Garg, Reshef Tal
Polycystic ovary syndrome (PCOS) affects 5-10% of women in reproductive age and is characterized by oligo/amenorrhea, androgen excess, insulin resistance, and typical polycystic ovarian morphology. It is the most common cause of infertility secondary to ovulatory dysfunction. The underlying etiology is still unknown but is believed to be multifactorial. Insulin-sensitizing compounds such as inositol, a B-complex vitamin, and its stereoisomers (myo-inositol and D-chiro-inositol) have been studied as an effective treatment of PCOS...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27792863/association-of-vitamin-d-status-with-semen-quality-and-reproductive-hormones-in-iranian-subfertile-men
#11
Sh Abbasihormozi, A Kouhkan, A R Alizadeh, A H Shahverdi, M H Nasr-Esfahani, M A Sadighi Gilani, R Salman Yazdi, A Matinibehzad, Z Zolfaghari
Although vitamin D deficiency is one of the most common health problems throughout the world, including Iran, conflicting information exists on the potential association between serum vitamin D levels and semen quality. This study intended to evaluate the association between serum vitamin D [25(OH) D3] with semen quality and hormones in Iranian subfertile men. We also compared mean vitamin D and hormone levels in normospermic men with oligoasthenoteratozoospermia (OAT) men. This cross-sectional study was conducted on 278 men who were referred to Royan Infertility Clinic (Tehran, Iran) from March to September 2014...
January 2017: Andrology
https://www.readbyqxmd.com/read/27737331/highly-prevalence-of-vitamin-d-deficiency-among-brazilian-women-of-reproductive-age
#12
Vinicius Medina Lopes, Joaquim Roberto Costa Lopes, Jean Pierre Barguil Brasileiro, Ingrid de Oliveira, Ricardo Peclat Lacerda, Marcos Renato Dib Andrade, Natália Ivet Zavattiero Tierno, Roberto Costa Cavalcante de Souza, Luiz Augusto Casulari Roxo da Motta
Objective: Vitamin D has several metabolic functions and possible reproductive functions. This study aimed to determine the prevalence of vitamin D deficiency among Brazilian women of reproductive age, and to evaluate the relationship between serum 25-hydroxyvitamin D [25(OH)D] concentrations and infertility causes. Subjects and methods: This retrospective cross-sectional study evaluated data from a private Brazilian assisted reproduction center that were collected between January 1 and May 5, 2012...
January 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27693423/possible-influence-of-vitamin-d-on-male-reproduction
#13
Ida Marie Boisen, Lasse Bøllehuus Hansen, Li Juel Mortensen, Beate Lanske, Anders Juul, Martin Blomberg Jensen
Vitamin D is a versatile signaling molecule with an established role in the regulation of calcium homeostasis and bone health. In recent years the spectrum of vitamin D target organs has expanded and a reproductive role is supported by the presence of the vitamin D receptor (VDR) and the vitamin D metabolizing enzymes in the gonads, reproductive tract, and human spermatozoa. Interestingly, expression levels of VDR and the vitamin D inactivating enzyme CYP24A1 in human spermatozoa serve as positive predictive markers of semen quality and are higher expressed in spermatozoa from normal than infertile men...
September 28, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27584605/body-weight-and-25-hidroxyvitamin-d-follicular-levels-a-prospective-study-of-women-submitted-to-in-vitro-fertilization
#14
Vitor As Deriquehem, Roberto A Antunes, Mila W Reginatto, Ana C Mancebo, Patricia Areas, Enrrico Bloise, Maria do Carmo B de Souza, Tania M Ortiga-Carvalho
OBJECTIVE: Vitamin D deficiency has been largely related to infertility in animals. However, data demonstrating a direct association between hypovitaminosis D and infertility in humans are still conflicting. Increased body weight and an elevated body mass index (BMI) are known for their association with infertility. Therefore, this study attempted to verify whether increases in body weight and the BMI were associated with lower 25-hidroxyvitamin D [25(OH)D3] levels in the follicular fluid (FF) of patients treated for infertility with intracytoplasmic sperm injections (ICSI)...
August 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/27496946/vitamin-d-deficiency-and-low-ionized-calcium-are-linked-with-semen-quality-and-sex-steroid-levels-in-infertile-men
#15
Martin Blomberg Jensen, Jacob Gerner Lawaetz, Anna-Maria Andersson, Jørgen Holm Petersen, Loa Nordkap, Anne Kirstine Bang, Pia Ekbom, Ulla Nordström Joensen, Lisbeth Prætorius, Peter Lundstrøm, Vibeke Hartvig Boujida, Beate Lanske, Anders Juul, Niels Jørgensen
STUDY QUESTION: Are low vitamin D levels linked with semen quality and sex steroids in infertile men? SUMMARY ANSWER: Infertile men with vitamin D deficiency had lower sperm motility, total numbers of motile sperm, Inhibin B, sex-hormone-binding-globulin (SHBG) and testosterone/estradiol ratio, but higher levels of free sex steroids, than infertile men with normal vitamin D levels. WHAT IS KNOWN ALREADY: Low vitamin D levels have been associated with decreased sperm motility in healthy men, but a relationship between vitamin D and calcium with semen quality and especially sex steroids has not been sufficiently described in infertile men...
August 2016: Human Reproduction
https://www.readbyqxmd.com/read/27465382/serum-25-hydroxyvitamin-d-concentrations-and-treatment-outcomes-of-women-undergoing-assisted-reproduction
#16
Laura Abadia, Audrey J Gaskins, Yu-Han Chiu, Paige L Williams, Myra Keller, Diane L Wright, Irene Souter, Russ Hauser, Jorge E Chavarro
BACKGROUND: Vitamin D deficiency impairs fertility in animal models, but the role of vitamin D in human fertility or treatment of infertility is less clear. OBJECTIVE: We examined the association between circulating 25-hydroxyvitamin D [25(OH)D] concentrations and the outcome in women undergoing assisted reproduction technologies (ARTs). DESIGN: We randomly selected 100 women undergoing infertility treatment with ART enrolled in an ongoing prospective cohort study who underwent 168 treatment cycles...
September 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27246740/nutrient-patterns-and-asthenozoospermia-a-case-control-study
#17
G Eslamian, N Amirjannati, B Rashidkhani, M-R Sadeghi, A Hekmatdoost
The association of dietary nutrient patterns and sperm motility is not yet well elucidated, and previous studies have just focused on the isolated nutrients. This case-control study examined the association of nutrient patterns with asthenozoospermia among Iranian men. In total, 107 incident asthenozoospermic men and 235 age-matched controls were interviewed through the infertility clinics in Tehran, Iran, from January 2012 to November 2013. Semen quality data were analysed according to the fifth edition of WHO guideline...
April 2017: Andrologia
https://www.readbyqxmd.com/read/27170434/vitamin-d-deficiency-and-pregnancy-rates-following-frozen-thawed-embryo-transfer-a-prospective-cohort-study
#18
Arne van de Vijver, Panagiotis Drakopoulos, Lisbet Van Landuyt, Alberto Vaiarelli, Christophe Blockeel, Samuel Santos-Ribeiro, Herman Tournaye, Nikolaos P Polyzos
STUDY QUESTION: What is the effect of vitamin D deficiency on the pregnancy rates following frozen embryo transfer (FET)?. SUMMARY ANSWER: Vitamin D deficiency does not affect pregnancy rates in FET cycles. WHAT IS KNOWN ALREADY: Although there is evidence that the potential impact of vitamin D deficiency on reproductive outcome may be mediated through a detrimental effect on oocyte or embryo quality, the rationale of our design was based on evidence derived from basic science, suggesting that vitamin D may have a key role in endometrial receptivity and implantation...
August 2016: Human Reproduction
https://www.readbyqxmd.com/read/27022933/serum-vitamin-d-status-and-in-vitro-fertilization-outcomes-a-systematic-review-and-meta-analysis
#19
REVIEW
Shi Shi Lv, Ji Ying Wang, Xiao Qian Wang, Yan Wang, Yong Xu
OBJECTIVE: To assess the correlation between serum 25-hydroxy vitamin D [25(OH)D] status and outcomes of in vitro fertilization (IVF) in infertile women through review systematically. METHODS: We used Embase, Pubmed, and Cochrane database to identify all studies that assessed the correlation between serum vitamin D levels and IVF outcomes in infertile women up until 30 June 2015, with the restricted language of English. We included studies that compared IVF outcomes between infertile women vitamin D <20 ng/ml and vitamin D ≥20 ng/ml...
June 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27003458/association-of-vitamin-d-with-outcome-after-intra-cytoplasmic-sperm-injection
#20
Umme Hani Abdullah, Salima Lalani, Fatima Syed, Sara Arif, Rehana Rehman
OBJECTIVE: To observe effects of vitamin D levels on pregnancy outcome after intra cytoplasmic sperm injection (ICSI). METHOD: It was a cross-sectional study conducted in Australian Concept Infertility Medical Center from July 2011 to August 2014. Estimation of 25-hydroxy cholecalciferol (25-OHD) of consented females (252) was done before treatment protocol for ICSI. Results of β hCG performed 14 days after embryo transfer categorized groups; Pregnant with ß hCG more than 25 IU/mL and rest included in non-pregnant group...
January 2017: Journal of Maternal-fetal & Neonatal Medicine
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