Environmental doses of arsenic exposure are associated with increased reproductive-age male urinary hormone excretion and in vitro Leydig cell steroidogenesis

2021 ◽  
Vol 408 ◽  
pp. 124904
Author(s):  
Meiping Tian ◽  
Yi-Xin Wang ◽  
Xiaofei Wang ◽  
Heng Wang ◽  
Liangpo Liu ◽  
...  
Keyword(s):  
Leydig Cell ◽  
Arsenic Exposure ◽  
Reproductive Age ◽  
Hormone Excretion

FSH regulates cultured Leydig cell function via Sertoli cell proteins: An in vitro study

1985 ◽  
Vol 132 (2) ◽  
pp. 729-734 ◽  
Author(s):  
M. Benahmed ◽  
C. Grenot ◽  
E. Tabone ◽  
P. Sanchez ◽  
A.M. Morera
Keyword(s):  
Sertoli Cell ◽  
Leydig Cell ◽  
Cell Function ◽  
In Vitro Study ◽  
Vitro Study ◽  
Leydig Cell Function

scholarly journals Endocrine Disruptors Differentially Target ATP-Binding Cassette Transporters in the Blood-Testis Barrier and Affect Leydig Cell Testosterone Secretion In Vitro

2013 ◽  
Vol 136 (2) ◽  
pp. 382-391 ◽  
Author(s):  
Anita C. A. Dankers ◽  
Maarke J. E. Roelofs ◽  
Aldert H. Piersma ◽  
Fred C. G. J. Sweep ◽  
Frans G. M. Russel ◽  
...  
Keyword(s):  
Endocrine Disruptors ◽  
Leydig Cell ◽  
Atp Binding ◽  
Testosterone Secretion ◽  
Atp Binding Cassette Transporters ◽  
Blood Testis Barrier ◽  
Atp Binding Cassette

scholarly journals Conazole fungicides inhibit Leydig cell testosterone secretion and androgen receptor activation in vitro

2014 ◽  
Vol 1 ◽  
pp. 271-283 ◽  
Author(s):  
Maarke J.E. Roelofs ◽  
A. Roberto Temming ◽  
Aldert H. Piersma ◽  
Martin van den Berg ◽  
Majorie B.M. van Duursen
Keyword(s):  
Androgen Receptor ◽  
Leydig Cell ◽  
Receptor Activation ◽  
Testosterone Secretion ◽  
Androgen Receptor Activation

Achieving pregnancy at a late reproductive age in a patient with a history of multiple failed in vitro fertilization attempts

2021 ◽  
Vol 7_2021 ◽  
pp. 202-209
Author(s):  
Kirienko K.V. Kirienko ◽  
Osina E.A. Osina ◽  
Apryshko V.P. Apryshko ◽  
Voloshanenko V.V. Voloshanenko V ◽  
Yakovenko S.A. Yakovenko S ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Reproductive Age ◽  
Vitro Fertilization ◽  
History Of

scholarly journals Arsenic Exposure Is Associated with Decreased DNA Repair in Vitro and in Individuals Exposed to Drinking Water Arsenic

2006 ◽  
Vol 114 (8) ◽  
pp. 1193-1198 ◽  
Author(s):  
Angeline S. Andrew ◽  
Jefferey L. Burgess ◽  
Maria M. Meza ◽  
Eugene Demidenko ◽  
Mary G. Waugh ◽  
...  
Keyword(s):  
Dna Repair ◽  
Drinking Water ◽  
Arsenic Exposure

scholarly journals Poor ovarian reserve and male infertility in a rural in vitro fertilization setup: a case report

2021 ◽  
Vol 10 (10) ◽  
pp. 4020
Author(s):  
Neha V. Harne ◽  
Vaibhav K. Nadkarni ◽  
Purnima Nadkarni ◽  
Jigna Garasia
Keyword(s):  
Semen Analysis ◽  
Oocyte Quality ◽  
Reproductive Age ◽  
Vitro Fertilization ◽  
Advanced Reproductive Age ◽  
Sperm Chromosomes ◽  
Definition Of ◽  
Poor Ovarian Reserve ◽  
Strict Definition

Female fertility begins to decline many years prior to the onset of menopause despite continued regular ovulatory cycles. Although there is no strict definition of advanced reproductive age in women, infertility becomes more pronounced after the age of 35. In the female, the number of oocytes decreases with age until the menopause. Oocyte quality also diminishes, due in part to increased aneuploidy because of factors such as changes in spindle integrity. Although older male age affects the likelihood of conception, abnormalities in sperm chromosomes and in some components of the semen analysis are less important than the frequency of intercourse. Age is as accurate as any other predictor of conception with assisted reproductive technology.

scholarly journals Correlation of in vitro fertilization (IVF) infertility treatment outcomes and body weight index in women of reproductive age

2021 ◽  
Vol 67 (1) ◽  
pp. 76-82
Author(s):  
A. S. Druzhinina ◽  
I. I. Vitiazeva ◽  
D. A. Dimitrova
Keyword(s):  
Body Weight ◽  
Spontaneous Abortion ◽  
Polycystic Ovary ◽  
Statistical Significance ◽  
Reproductive Age ◽  
Research Centre ◽  
Class Iii ◽  
Menstrual Dysfunction ◽  
Ivf Outcomes

Backgraund: obesity/overweight in women are often the causes of menstrual dysfunction and infertility.Aims: To identify the association between overweight/obesity and IVF outcomes.Materials and methods: retrospective study — data of 1874 patients undergoing IVF in the Endocrinology Research Centre (2012–2019) was analyzed. Exclusion criteria: BMI <18.5 kg/m2, polycystic ovary syndrome, donation of ­oocytes, ectopic pregnancy, fertilization with partner’s epididymal/testicular sperm. The study included 1583 women aged 21–45 years (median 33.0 y.o. [30.0; 37.0], median BMI 23 kg/m2 [20.7; 26.2]). Statistical data processing was performed using the STATISTICA application package (StatSoft). The threshold level of statistical significance is <0.05.Results: Patients were divided into 5 groups (gr.): normal body weight (NBW) - 1061 people (ppl.) (gr. 1), overweight — 368 (gr. 2), class I obesity — 117 (gr. 3), class II obesity — 36 (gr. 4), class III obesity — 1 (gr. 5). In each group, the estimated pregnancy rate (PR) and its outcomes, the frequency of lightweight newborns (body weight at birth <2500g), newborns with NBW (2500-3999g), births with a large fetus (≥4000g) were measured. The PR didn’t differ: 34.6%, 34.5%, 30,7%, 41,7%, respectively, the woman in gr.5 got pregnant. Among 407 (74.4%) singleton pregnancies urgent delivery was registered in 71.91%, 67,57%, 70,83%, 60,0%, gr. 5 — no ­information. Premature birth: 7,66%, 5,41%, 8,33%, 0%. Spontaneous abortion in the 1st trimester: 18,30%, 25,68%, 20,83%, 40,0%. Spontaneous abortion in the 2nd trimester: 2,13%, 1,35% in gr. 2, 3, 4. Lightweight newborns: 8,81%, 11,36%, 6,25%, 0%. Newborns with NBW: 84,91%, 84,09%, 75,0%, 60,0%. Large-childbirth — 6,29%, 4,55%, 18,75%, 40,0%.Conclusions: Correlation analysis of the dependence of PR and its outcomes on the BMI was not revealed (p=0.975 and p=0.469, respectively). Large fetus births were more often detected in obese patients (p=0.0016). A large prospective group is needed to expand the estimated body parameters to the IVF outcomes.

scholarly journals Results and experiences after 1000 IVF cycles at the Clinic for gynecology and obstetrics in Novi Sad

2011 ◽  
Vol 64 (11-12) ◽  
pp. 565-569
Author(s):  
Vesna Kopitovic ◽  
Stevan Milatovic ◽  
Aleksandra Trninic-Pjevic ◽  
Artur Bjelica ◽  
Irena Bujas ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Intracytoplasmic Sperm Injection ◽  
Clinical Pregnancy ◽  
Reproductive Age ◽  
Male Factor ◽  
Fertilization Program ◽  
Vitro Fertilization ◽  
Gynecology And Obstetrics ◽  
Novi Sad

Introduction. Infertility affects 15-17% of reproductive age couples in our country, and 10-15% of couples worldwide. The aim of this paper was to present results and experience gained after the first 1000 cycles of the national In Vitro Fertilization (IVF) program, to offer professional standard of work in our country and to compare it with results obtained in Europe and worldwide. Material and methods. The study prospectively included 1000 women who had undergone national In Vitro Fertilization program from October 2006 until November 2009 at the Department of Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad. Results. The analysis included 1000 in vitro fertilization cycles. Male factor infertility was the leading cause (56.9%) followed by tubal factor (45.9%). The classic method of in vitro fertilization constituted 72.3% of all cycles, while intracytoplasmic sperm injection (ICSI) method was used in 27.7% of all cycles. The average number of embryos transferred was 2.67. The cycle cancellation rate was 14.10% and the aspiration rate was 94.40%. The clinical pregnancy and live birth rate were 33.41% and 26.78% per embryo transfer, respectively. Discussion and conclusion. The results in our study showed that in our setting there are far less intracytoplasmic sperm injection cycles compared with the European average of 66.5% of all fresh cycles, and that we transferred more embryos on average. Our success rates are comparable with those in other European countries where the clinical pregnancy rates per aspiration and per transfer for in vitro fertilization were 29 and 32.4%, respectively in the period of observation. For intracytoplasmic sperm injection, the corresponding rates were 29.9 and 33%.

scholarly journals Long-acting reversible contraception by effervescent microneedle patch

2019 ◽  
Vol 5 (11) ◽  
pp. eaaw8145 ◽  
Author(s):  
Wei Li ◽  
Jie Tang ◽  
Richard N. Terry ◽  
Song Li ◽  
Aurelie Brunie ◽  
...  
Keyword(s):  
Biodegradable Polymer ◽  
Glycolic Acid ◽  
Interstitial Fluid ◽  
Threshold Level ◽  
Reproductive Age ◽  
Women Of Reproductive Age ◽  
Human Participants ◽  
Microneedle Patch ◽  
Long Acting

To increase access to long-acting contraception, we developed a reversible contraceptive microneedle patch that is simple-to-administer, slowly releases contraceptive hormone (levonorgestrel) for >1 month, and generates no biohazardous sharps waste. After manually pressing the patch to skin for 1 min, microneedles rapidly separate from the patch within the skin due to effervescence triggered by contact with skin’s interstitial fluid, as demonstrated in rats and human participants. Long-acting contraception is achieved by formulating microneedles with a biodegradable polymer [poly(lactic-co-glycolic) acid] that slowly releases levonorgestrel for ~1 month in vitro. In rats, the patch maintained levonorgestrel concentration above the human contraceptive threshold level for >1 month, and a placebo microneedle patch was well-tolerated in human participants. Women of reproductive age in three continents demonstrated interest in and preference for long-acting contraception by microneedle patch. These studies indicate that an effervescent microneedle patch could facilitate greater access to long-acting contraception.

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