scholarly journals Euthyroid Hyperthyrotropinemia in Children Born after in Vitro Fertilization

2009 ◽  
Vol 94 (4) ◽  
pp. 1338-1341 ◽  
Author(s):  
Sophia D. Sakka ◽  
Ariadne Malamitsi-Puchner ◽  
Dimitrios Loutradis ◽  
George P. Chrousos ◽  
Christina Kanaka-Gantenbein
Keyword(s):  
In Vitro Fertilization ◽  
Assisted Reproduction ◽  
Primary Hypothyroidism ◽  
Thyroid Peroxidase ◽  
Thyroglobulin Antibodies ◽  
Assisted Reproduction Techniques ◽  
Vitro Fertilization ◽  
Serum T3

Abstract Context: Assisted reproduction techniques are now commonly used. Although classic in vitro fertilization (IVF) started almost 30 yr ago, few long-term systematic prospective studies of children conceived with assisted reproduction have been performed. Objective: Our objective was to investigate thyroid function in children conceived after IVF vs. naturally conceived controls. Populations and Methods: A total of 106 children conceived after classic IVF and 68 naturally conceived controls, aged 4–14 yr, were studied. All children were thoroughly examined, and serum T3, T4, TSH, anti-thyroid peroxidase, and anti-thyroglobulin antibodies were measured. A second TSH determination and a thyroid ultrasound were performed for TSH higher than 5 μIU/ml, and children were considered to have persistent hyperthyrotropinemia, if the TSH elevation was confirmed. Results: Seven IVF children but none of the controls had persistent elevations of circulating TSH, suggesting euthyroid hyperthyrotropinemia or subclinical primary hypothyroidism (P = 0.044). TSH was significantly higher in the IVF group than in controls (P = 0.046), whereas no significant differences in the concentrations of T3 or T4 were observed. None of the children had detectable circulating antithyroid antibodies in either group. Conclusions: A significant elevation of serum TSH compatible with a mild TSH resistance of the thyroid were found in IVF children compared with controls. This was not due to the presence of antithyroid autoantibodies. We suggest that this might represent a slight epigenetic developmental abnormality related to the preimplantation manipulation of the embryo. Further studies are needed to confirm these findings and to better determine their etiopathogenesis and clinical significance.

scholarly journals Reproductive aspects of the male jaguar (Panthera onca): A review

2021 ◽  
Author(s):  
E. López-Pérez ◽  
F. Cortés-Villavicencio ◽  
C. Muñoz-García ◽  
J. Gallegos-Sánchez ◽  
Alejandro Ávalos-Rodríguez
Keyword(s):  
In Vitro Fertilization ◽  
Assisted Reproduction ◽  
Reproductive System ◽  
Artificial Insemination ◽  
Relevant Information ◽  
Panthera Onca ◽  
Leopardus Pardalis ◽  
Assisted Reproduction Techniques ◽  
Vitro Fertilization

Objective: To describe the anatomy, morphology and physiology of the reproductive system of male jaguars, as well as assisted reproduction techniques. Methodology: A literature review on the anatomy and morphology of the jaguar´s reproductive system, its physiological characteristics and assisted reproduction techniques were carried out to document relevant information on the topic. Results: With this review, basic aspects of the morphology of the reproductive system of the jaguars are disclosed, although scarce knowledge is available on their reproduction. The advances in the collection, evaluation and cryopreservation of semen of this feline are shown, in addition to assisted reproduction techniques such as artificial insemination and in vitro fertilization, which have a great potential to safeguard the species. Study limitations: The jaguar, an emblematic species of Latinamerica, is an endangered species, like other wild felids species as ocelot (Leopardus pardalis) and margay (Leopardus wiedii), which makes it necessary to have a national assisted reproduction program. However, for this to be possible, information about their reproductive physiology is necessary, which is complicated in wild animals and even more so because the reproductive mechanisms greatly differ between felids species. There is scarce information in this regard from its free-living or Mexican zoos, it is for this reason necessary to generate such information. Conclusions: It is necessary to continue working on designing protocols for artificial insemination and other assisted reproduction techniques such as in-vitro fertilization specifically for male Panthera onca.

scholarly journals PP-25 EVOLUTION IN METHOD OF IN VITRO FERTILIZATION (CLASSICAL IVF OR ICSI) IN ASSISTED REPRODUCTION TECHNIQUES IN SPAIN

2012 ◽  
Vol 24 ◽  
pp. S14
Author(s):  
Yolanda Cabello ◽  
Esther Vidal ◽  
Fernando Prados ◽  
María José De Los Santos ◽  
Francisca Luceño ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Assisted Reproduction ◽  
Assisted Reproduction Techniques ◽  
Vitro Fertilization

scholarly journals The Role of MEMS in In-Vitro-Fertilization

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
I. D. Wijegunawardana ◽  
Y. W. R. Amarasinghe
Keyword(s):  
In Vitro Fertilization ◽  
Assisted Reproduction ◽  
Success Rates ◽  
Assisted Reproduction Techniques ◽  
Vitro Fertilization ◽  
Viable Solution ◽  
Micro Electromechanical System ◽  
Experienced Individual

The assisted reproduction has been considered a viable solution for the infertility of humankind for more than four decades. In-Vitro-Fertilization (IVF) is one of the most successful assisted reproduction techniques, where the reproductive cell of the female partner is fertilized outside of her body. Initially, the IVF process has been conducted manually by an experienced embryologist. However, even with a highly experienced individual, the operation had extremely lower success rates due to the limited control in environmental conditions and the requirement of precise movements. Therefore, to address this technological deficit, the feasibility of the mechatronics devices for IVF procedures has been investigated. Among the different mechatronics concepts, micro-electromechanical system (MEMS) technologies have been gradually attracted to the IVF process and improved its capabilities. The purpose of this paper is to present a brief overview of the role of MEMS technologies in IVF. The article classifies the MEMS technologies in IVF based on their application in order to emphasize its contribution. In addition, the article extensively discusses the state-of-the-art mechatronic techniques utilized in Intracytoplasmic Sperm Injection (ICSI), one of the most popular techniques used in IVF. This review article expects to become extremely beneficial for the engineering researchers new to this field who seek critical information on IVF in simple terms with highlights on the possible advancements and challenges that may emerge in the future.

Peculiarities of pregnancy and delivery course in women after the application of assisted reproductive technologies against obesity (Based on the retrospective analysis)

2018 ◽  
pp. 122-126
Author(s):  
I.A. Zhabchenko ◽  
◽  
O.R. Sudmak ◽  
Keyword(s):  
In Vitro Fertilization ◽  
Pregnant Women ◽  
Retrospective Analysis ◽  
Perinatal Outcomes ◽  
Reproductive Technologies ◽  
Ischemic Lesion ◽  
Vitro Fertilization ◽  
Pregnancy And Delivery

The objective: to study the structure and frequency of complications of pregnancy, deliveries and perinatal outcomes in three groups of women: women with infertility and obesity, treated by application of in vitro fertilization (hereinafter IVF), pregnant women after IVF application with normal body weight, and pregnant women on the background of obesity which did not have an infertility in past history. Materials and methods. A retrospective analysis of 221 case histories of pregnancies and labors in women who were treated and gave birth in the Pregnancy and delivery pathology Department of SI «Institute of Pediatrics, Obstetrics and Gynecology named after Acad. O. M. Lukyanova of NAMS of Ukraine» for 2012 – 2016 years was carried out. Results. The overwhelming majority of pregnant women after IVF on the background of obesity are primaparas, who have a complicated obstetric history, hormonal changes in the form of progesterone deficiency predominantly and chronic inflammatory processes. Pregnancy with a combination of infertility, treated by the means of IVF application, and obesity, in most cases is accompanied by a long-term threat of termination of pregnancy (48.8%), threatening preterm deliveries (56%), placental dysfunction (41.5%), premature rupture of the amniotic membranes (41.5%), other problems during pregnancy, at the same time, every second woman (58.5%) had a combination of several complications, and required a long-term and repeated inpatient treatment (53.7%). The specific gravity of surgical delivery was 90%, and 16.2% of such deliveries were complicated by pathological blood loss. The number of preterm deliveries was 17.1%, with perinatal losses up to 11.3‰. Among full-term newborns 21.3% of newborns had malnutrition of the I degree and 17% of them had hypoxic-ischemic lesion of CNS. Conclusion. The course of pregnancy, delivery and the postpartum period in the studied contingent of women has a significant frequency of complications, mainly the coinciding ones, which affects on the consequences of perinatal outcomes and requires further study of this problem and the development of differentiated algorithms for antenatal observation. Key words: pregnancy, obesity, in vitro fertilization, complications, delivery, newborn.

Slægtskabsreguleringer. Feministisk retsretorik som analyseramme og dens potentiale for at identificere lovens performative effekter

2019 ◽  
Vol 23 (79) ◽  
Author(s):  
Charlotte Kroløkke ◽  
Janne Rothmar Herrmann
Keyword(s):  
In Vitro Fertilization ◽  
Gender Equality ◽  
Assisted Reproduction ◽  
Reproductive Technologies ◽  
Global Market ◽  
Ethical Guidelines ◽  
Vitro Fertilization ◽  
Rhetorical Figures ◽  
Master Plots

Involuntary childlessness is a well-known phenomenon, and in Denmark, every twelfth child is born through the use of assisted reproduction. Denmark is currently positioned as one of the key global actors both as far as the use of in-vitro ­fertilization (IVF) is concerned as well as within the global ­market in sperm and reproductive technologies. In this article, the authors develop a feminist legal rhetorical framework to discuss how the Danish law and ethical guidelines on adoption and assisted reproduction rhetorically produce different master plots on “natural,” “artificial,” and “monstrous” forms of kinship. The authors conclude with a discussion of the potential that a feminist legal rhetorical framework holds, including its ability to analyze how rhetorical figures and metaphors legitimize certain types of kinship as well as the ability to raise new and provo­cative questions related to gender equality within the law

scholarly journals Effect of long-term caffeine administration to mice on in vitro fertilization and embryo development using oocytes

2013 ◽  
Vol 12 (4) ◽  
pp. 167-171 ◽  
Author(s):  
Hidemi Yokota ◽  
Yoshimasa Yokota ◽  
Mikako Yokota ◽  
Yasuyuki Araki ◽  
Yasuhisa Araki
Keyword(s):  
In Vitro Fertilization ◽  
Embryo Development ◽  
Vitro Fertilization
Sign in / Sign up

Export Citation Format

Share Document