Intrauterine development of fetus in the conditions of oil technogenesis

2021 ◽  
pp. 56-64
Author(s):  
M. K. Ivanova ◽  
A. N. Bakshaeva ◽  
E. P. Kuznetsova ◽  
E. V. Osipova ◽  
E. V. Mikhajlova ◽  
...  
Keyword(s):  
Congenital Anomalies ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Soil Surface ◽  
Reproductive Technologies ◽  
Medical Documentation ◽  
Observation Group ◽  
Intrauterine Development ◽  
Underground Waters ◽  
Musculoskeletal Systems

The oil industry is a leader in the negative impact on all areas of the natural environment. Polluting the atmospheric air, soil, surface and underground waters, oil production processes expose the population living in the adjacent territory to the dangerous effects of xenobiotics. The reproductive system is the most sensitive to environmental problems.The aim of the study was to identify the features of the intrauterine development of fetuses of women living in the territory of oil technogenesis in comparison with the fetuses of women living in a territory without it. A comparative assessment of the frequency of blastogenesis defects in the studied groups was carried out as a result of the analysis of embryological protocols of women who received infertility treatment using methods of assisted reproductive technologies. In order to assess the frequency and structure of defects in embryogenesis and fetogenesis, an analysis of cases of congenital malformations was carried out according to the data of the primary medical documentation of the Medical Genetic Consultation.The identification of differences in the development of embryos was determined by the Pearson agreement criterion. Assessment of statistically significant differences in indicators in the study of the frequency and structure of congenital anomalies in fetuses identified by ultrasound and in newborns, the structure of factors that influenced the mother during pregnancy, which could lead to the development of congenital anomalies and complications of the course of pregnancy, was carried out using t-Student's criterion. Defects of cleavage and blastulation of embryos of women in the observation group were revealed. It was found that the frequency of birth of children with congenital anomalies in the territories of oil technogenesis is statistically significantly higher than in the territories without it. In the observation group, congenital anomalies of the respiratory system detected by ultrasound examination of the fetus, congenital anomalies of the genitals, urinary organs, musculoskeletal systems, multiple malformations revealed antenatally are statistically significantly more common.

scholarly journals Negative impact of high doses of follicle-stimulating hormone during superovulation on the ovulatory follicle function in small ovarian reserve dairy heifers†

2020 ◽  
Author(s):  
Kaitlin R Karl ◽  
Fermin Jimenez-Krassel ◽  
Emily Gibbings ◽  
Janet L H Ireland ◽  
Zaramasina L Clark ◽  
...  
Keyword(s):  
Ovarian Reserve ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Follicle Stimulating Hormone ◽  
Prostaglandin F2α ◽  
Reproductive Technologies ◽  
Corpora Lutea ◽  
Ovulatory Follicle ◽  
High Doses ◽  
Stimulating Hormone

Abstract When women with small ovarian reserves are subjected to assisted reproductive technologies, high doses of gonadotropins are linked to high oocyte and embryo wastage and low live birth rates. We hypothesized that excessive follicle-stimulating hormone (FSH) doses during superovulation are detrimental to ovulatory follicle function in individuals with a small ovarian reserve. To test this hypothesis, heifers with small ovarian reserves were injected twice daily for 4 days, beginning on Day 1 of the estrous cycle with 35, 70, 140, or 210 IU doses of Folltropin-V (FSH). Each heifer (n = 8) was superovulated using a Williams Latin Square Design. During each superovulation regimen, three prostaglandin F2α injections were given at 12-h interval, starting at the seventh FSH injection to regress the newly formed corpus luteum (CL). Human chorionic gonadotropin was injected 12 h after the last (8th) FSH injection to induce ovulation. Daily ultrasonography and blood sampling were used to determine the number and size of follicles and corpora lutea, uterine thickness, and circulating concentrations of estradiol, progesterone, and anti-Müllerian hormone (AMH). The highest doses of FSH did not increase AMH, progesterone, number of ovulatory-size follicles, uterine thickness, or number of CL. However, estradiol production and ovulation rate were lower for heifers given high FSH doses compared to lower doses, indicating detrimental effects on ovulatory follicle function.

Effectiveness and outcomes of embryo cryopreservation programs in assisted reproductive technologies

2014 ◽  
Vol 63 (4) ◽  
pp. 39-46 ◽  
Author(s):  
Yana Nikolayevna Kravchuk ◽  
Alla Stanislavovna Kalugina ◽  
Olga Vladimirovna Bystrova ◽  
Svetlana Aleksandrovna Shlykova
Keyword(s):  
Embryo Transfer ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Perinatal Outcomes ◽  
Reproductive Technologies ◽  
Embryo Cryopreservation ◽  
Control Group ◽  
Fresh Embryo Transfer ◽  
Art Programs ◽  
Thawed Embryo Transfer

Background. Embryo cryopreservation is an essential part of ART programs today. In recent years vitrification method is used increasingly widely. Purposes and tasks. To compare the effectiveness of ART programs using vitrified and fresh embryos, as well as different endometrial preparation regimes for frozen\thawed embryo transfer (modified natural cycle (MNC) and the preparatory hormone therapy(PHT)). To analyze the course of pregnancy and perinatal outcomes after vitrified embryo transfer. Materials and methods. We prospectively assessed the ART programs effectiveness and perinatal outcomes in 153 patients (I group), who underwent vitrified embryo transfer in 2011-2013 year. To prepare the endometrium for thawed embryo transfer in 83 patients PHT (Ia subgroup) and MNC in 70 patients (Ib subgroup) were used. Control group consisted of 70 patients, who underwent fresh embryo transfer. Results. The clinical pregnancy rate, birth rate and “take home baby” rate were not significantly different between the I (47,5 %; 30,9 %; 30,9 %) and II (53,0 %; 34,9 %; 32,5 %) groups, and between Ia (48,3 %; 28,4 %; 28,4 %) and IIb (46,6 %; 34,1 %; 34,1 %) subgroups. Complications during pregnancy and delivery, birthweight, length, Apgar score, congenital malformation rate did not differ significantly after vitrified and fresh embryo transfer. Conclusion. Vitrification is an effective method to achieve clinical results, comparable to native cycles. Application of PHT and MNC results in similar clinical outcomes. Transfer Vitrified embryo transfer does not have a negative impact on obstetric and perinatal outcomes when compared with native cycles.

scholarly journals Current Status of Sex Sorted Semen and its Long Term effect on Population Dynamics and Y-Chromosome Degeneration of the Breed Among Dairy Animals in Jharkhand, India: A Review

2021 ◽  
pp. 34-44
Author(s):  
N. Kumari ◽  
S. Prasad ◽  
A. K. Pandey ◽  
S. Dash ◽  
R. Sinha
Keyword(s):  
Population Dynamics ◽  
Y Chromosome ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Research Work ◽  
Reproductive Technologies ◽  
Current Status ◽  
Effective Population ◽  
Female Population ◽  
Y Chromosome Degeneration

Sex Sorted Semen gives the liberty of producing offspring of the desired sex - in farming animals by using it in conjunction with other assisted reproductive technologies such as Artificial Insemination and In-Vitro Fertilization after selecting the healthy sperm and separating into X-Female and Y-male Chromosome bearing populations based on their DNA content. It is an important biotechnological tool to increase the milk production and the profitability of Dairy Industry. Current study deals with the Principle, methods, main method, advantages, disadvantages and the current status of Sex sorted semen in India and Jharkhand. The main emphasis of this study is to draw the attention of Scientific fraternity towards the effect of Sex Sorted Semen on Population dynamics. The Sex Sorted semen increases the deviation of ratio between Male and Female Population from ideal 1:1, thereby decreasing the effective population size Ne and thus slowly reducing the viability and survivability of the population or breed concerned. Further the already depleting Y chromosomes will be reaped off all its genes in long run at a faster rate due to antagonistic selection pressure arising out of Artificial selection via Sex Sorted Semen acting against all the gene of Y chromosome of the breed or population concerned which might disturb many vital genes and the associated functions. The degeneration and extinction of scientists have been predicted long ago. The effect of Sex Sorted semen on Y- chromosome degeneration is yet to be pointed out, calculated and subsequently verified in any of the literatures. SSS is indeed a boon for India as well as Jharkhand. It might be too early to predict about the negative impact of SSS on population dynamics and Y-Chromosome degeneration. Further research work must be done to assess the extent and authencity of above mentioned impact( Predicted  theoretically) by calculation as well as practical field based Experimentation.

scholarly journals A clinical example of the management of a premature baby born after IFV

2019 ◽  
pp. 141-145
Author(s):  
N. A. Druzhinina ◽  
D. R. Merzlyakova ◽  
G. P. Shiryaeva
Keyword(s):  
Nervous System ◽  
Assisted Reproductive Technologies ◽  
Subsequent Development ◽  
Reproductive Technologies ◽  
Premature Baby ◽  
Extremely Low Birth Weight ◽  
Medical Documentation ◽  
Central Nervous System Damage ◽  
Premature Babies

Babies born through in vitro fertilization (IVF) treatment are most often born preterm [1]. Most authors state that these children are more likely to have congenital malformations, bronchopulmonary dysplasia (BPD), hypoxic central nervous system damage, hyperbilirubinemia. It is known that these children are 6 times more likely to have an extremely low birth weight and intrauterine growth retardation [2]. More than 35 years have passed since the birth of the first child through the IVF treatment. During this time, the assisted reproductive technologies have improved and therewith the number of children conceived in vitro has also increased. In this regard, the issues relating to the study of the health of children conceived through IVF treatment are growing more urgent. In the Russian Federation, the share of premature babies averages 6–8% among all newborns. Children born prematurely should always be in the center of attention of pediatricians, since it is among them that the highest percentage of perinatal pathology is observed and deviations in subsequent development are detected much more often [3].Objective of the study: to study the state of health of a premature baby in the first year of life born through IVF. Material and methods: the researchers performed a continuous, documentary, retrospective analysis of the medical history of a child treated in the Special Care Nursery of the City Children’s Clinical Hospital in Ufa, and afterwards monitored the child in the Catamnesis Unit. The child underwent clinical examination, assessment of physical development using the centile method, laboratory tests, analysis of primary medical documentation (hospital neonatal record f. 097/u, outpatient medical record f. 112/u). The premature baby was examined taking into account the adjusted age (from the calendar age to 40 weeks of gestation).Results: the health and age of the mother are crucial in forming the health of the child. The mother had a combined pathology. The 3rd pregnancy (the 1st pregnancy ended in childbirth at 35 weeks, the child grows in a family, the 2nd pregnancy ended in spontaneous abortion) through IVF treatment developed against the threat of interruption starting from 8 weeks, combined gestosis, grade 1B placental violation, low placentation, isthmic-cervical insufficiency (ICI), antiphospholipid syndrome, which resulted in early, premature birth at 29 weeks’ gestational age. The child was born prematurely with perinatal nervous system damage, the development of acute pneumonia, respiratory distress syndrome of the newborn.Findings: A clinical case determines the need for targeted observation of a premature child from a risk group, timely advanced training of a pediatrician regarding the features of management of premature babies born through the IVF treatment, taking into account the adjusted age.

scholarly journals Infertility and reproductive disorders: impact of hormonal and inflammatory mechanisms on pregnancy outcome

2015 ◽  
Vol 22 (1) ◽  
pp. 104-115 ◽  
Author(s):  
Silvia Vannuccini ◽  
Vicki L. Clifton ◽  
Ian S. Fraser ◽  
Hugh S. Taylor ◽  
Hilary Critchley ◽  
...  
Keyword(s):  
Pregnancy Outcome ◽  
Pregnancy Outcomes ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Polycystic Ovary ◽  
Reproductive Technologies ◽  
Obstetric Complications ◽  
Reproductive Disorders ◽  
Childbearing Age ◽  
Increased Risk

Abstract BACKGROUND Reproductive disorders and infertility are associated with the risk of obstetric complications and have a negative impact on pregnancy outcome. Affected patients often require assisted reproductive technologies (ART) to conceive, and advanced maternal age is a further confounding factor. The challenge is to dissect causation, correlation and confounders in determining how infertility and reproductive disorders individually or together predispose women to poor pregnancy outcomes. METHODS The published literature, to June 2015, was searched using PubMed, summarizing all evidences concerning the perinatal outcome of women with infertility and reproductive disorders and the potential mechanisms that may influence poor pregnancy outcome. RESULTS Reproductive disorders (endometriosis, adenomyosis, polycystic ovary syndrome and uterine fibroids) and unexplained infertility share inflammatory pathways, hormonal aberrations, decidual senescence and vascular abnormalities that may impair pregnancy success through common mechanisms. Either in combination or alone, these disorders results in an increased risk of preterm birth, fetal growth restriction, placental pathologies and hypertensive disorders. Systemic hormonal aberrations, and inflammatory and metabolic factors acting on endometrium, myometrium, cervix and placenta are all associated with an aberrant milieu during implantation and pregnancy, thus contributing to the genesis of obstetric complications. Some of these features have been also described in placentas from ART. CONCLUSIONS Reproductive disorders are common in women of childbearing age and rarely occur in isolation. Inflammatory, endocrine and metabolic mechanisms associated with these disorders are responsible for an increased incidence of obstetric complications. These patients should be recognized as ‘high risk’ for poor pregnancy outcomes and monitored with specialized follow-up. There is a real need for development of evidence-based recommendations about clinical management and specific obstetric care pathways for the introduction of prompt preventative care measures.

scholarly journals Hot Topics on Fertility Preservation for Women and Girls—Current Research, Knowledge Gaps, and Future Possibilities

2021 ◽  
Vol 10 (8) ◽  
pp. 1650
Author(s):  
Kenny A. Rodriguez-Wallberg ◽  
Xia Hao ◽  
Anna Marklund ◽  
Gry Johansen ◽  
Birgit Borgström ◽  
...  
Keyword(s):  
Fertility Preservation ◽  
Clinical Medicine ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Experimental Studies ◽  
Reproductive Technologies ◽  
Research Knowledge ◽  
Scientific Publications ◽  
Gonadal Tissue ◽  
Adults And Children

Fertility preservation is a novel clinical discipline aiming to protect the fertility potential of young adults and children at risk of infertility. The field is evolving quickly, enriched by advances in assisted reproductive technologies and cryopreservation methods, in addition to surgical developments. The best-characterized target group for fertility preservation is the patient population diagnosed with cancer at a young age since the bulk of the data indicates that the gonadotoxicity inherent to most cancer treatments induces iatrogenic infertility. Since improvements in cancer therapy have resulted in increasing numbers of long-term survivors, survivorship issues and the negative impact of infertility on the quality of life have come to the front line. These facts are reflected in an increasing number of scientific publications referring to clinical medicine and research in the field of fertility preservation. Cryopreservation of gametes, embryos, and gonadal tissue has achieved quality standards for clinical use, with the retrieval of gonadal tissue for cryopreservation being currently the only method feasible in prepubertal children. Additionally, the indications for fertility preservation beyond cancer are also increasing since a number of benign diseases and chronic conditions either require gonadotoxic treatments or are associated with premature follicle depletion. There are many remaining challenges, and current research encompasses clinical health care and caring sciences, ethics, societal, epidemiological, experimental studies, etc.

scholarly journals THE USE OF THE PRP THERAPY TO ACTIVATE FOLLICULOGENESIS IN WOMEN OF THE LATE REPRODUCTIVE AGE IN PROGRAMS OF ASSISTED REPRODUCTIVE TECHNOLOGIES

World Science ◽  
2021 ◽  
Author(s):  
Uliana Dorofeieva ◽  
Oleksandra Boichuk
Keyword(s):  
Embryo Quality ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Platelet Rich Plasma ◽  
Married Couples ◽  
Treatment Method ◽  
Reproductive Technologies ◽  
Reproductive Age ◽  
Medical Problems ◽  
Fertilization Program

The rate of infertility in married couples of reproductive age in this country makes up from 10 to 15%, in some regions this value is close to 20% - acritical level that has a negative impact on demographic figures. The rate of pregnancy depends directly on the women’s age and decreases by 3.3times starting from the age of 19 and by the age of 48. The decrease in the ability to conceive is accounted for by subtle mechanisms related to thedeterioration of the quality of oocytes. The patients who are prepared for an extracorporeal fertilization program (ECF) and do not respond tocontrolled ovarian hyperstimulation protocols are considered to be poor respondents. Many studies focused on the development of an optimaltreatment method. However, none of the approaches seems to be effective enough to guarantee a successful use. Platelet-rich plasma is a new andpromising method that is successfully used in the reproductive science to solve a number of medical problems. All the patients whose commonfeatures were low oocyte output and poor embryo quality as well as failed ECF attempts were offered a treatment method of autologous PRP therapyafter their written consent. Three months later, one obtained astonishing results, which by the markers of biochemical infertility alone could beclassified as a complete biological phenomenon and are also characterized by improved embryo quality. The results of hormonal homeostasis show adecrease in the level of the follicle-stimulating hormone by 67.33% while the level of the anti-muellerian hormone is 75.18% higher.Thus, the use of the PRP therapy in poor respondents helps them to overcome their problematic reproductive barrier.

scholarly journals Assisted Reproductive Technology and Anorectal Malformation: A Single-Center Experience

2021 ◽  
Vol 9 ◽  
Author(s):  
Chiara Iacusso ◽  
Barbara Daniela Iacobelli ◽  
Francesco Morini ◽  
Giorgia Totonelli ◽  
Milena Viggiano ◽  
...  
Keyword(s):  
Congenital Anomalies ◽  
Anorectal Malformation ◽  
Assisted Reproductive Technologies ◽  
Reproductive Technologies ◽  
Single Center ◽  
Retrospective Case ◽  
Single Center Experience ◽  
Potential Association ◽  
The Relationship ◽  
Control Study

Background: Assisted reproductive technologies (ART) are becoming widespread, accounting for approximately 2% of all births in the western countries. Concerns exist on the potential association of ART with congenital anomalies. Few studies have addressed if a relationship exists between ART and the development of anorectal malformation (ARM). Our aim was to analyze the relationship between ARM and ART.Methods: Single-center retrospective case control study of all patients treated for ARM between 2010 and 2017. Patients with bronchiolitis treated since 2014 were used as controls. Variables analyzed include the following: prevalence of ART, gestational age, birth weight, and maternal age. Patients with ARM born after ART were also compared with those naturally conceived for disease complexity. Fisher's exact and Mann-Whitney U-tests were used as appropriate.Results: Three hundred sixty-nine patients were analyzed (143 cases and 226 controls). Prevalence of ART was significantly higher in ARM patients than in controls [7.6 vs. 3.0%; odds ratio: 2.59 (95% CI, 0.98–0.68); p = 0.05]. Among ARM patients, incidence of VACTERL association (17%) is more frequent in ART babies.Conclusion: Patients with ARM were more likely to be conceived following ART as compared with controls without congenital anomalies. Disease complexity of patients with ARM born after ART seems greater that those born after nonassisted conception.

Ovarian endometriosis associated infertility: a modern view to the problem

GYNECOLOGY ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 44-49
Author(s):  
Mekan R. Orazov ◽  
Marina B. Khamoshina ◽  
Marianna Z. Abitova ◽  
Lyudmila M. Mikhaleva ◽  
Snezhana V. Volkova ◽  
...  
Keyword(s):  
Ovarian Reserve ◽  
Assisted Reproductive Technologies ◽  
Negative Impact ◽  
Ovarian Tissue ◽  
Reproductive Function ◽  
Reproductive Technologies ◽  
Reproductive Age ◽  
Ovarian Endometriosis ◽  
Surgical Interventions ◽  
Ovarian Endometriomas

This review summarizes current understanding of the pathogenesis of one of the most common forms of external genital endometriosis ovarian endometriomas. Due to their frequent occurrence in young women of reproductive age and extremely negative impact on the morphophysiological state of the ovaries, this disease makes a significant contribution to the structure of endometriosis-associated infertility. The main determinant of the negative effect of ovarian endometriomas on reproductive function is a decrease in ovarian reserve, which can occur either due to the direct gonadotoxic effect of the endometriod cyst itself, or due to the unintentional removal of healthy ovarian tissue during surgery or the use of aggressive methods of electrosurgery. Hence, the question of methods for achieving hemostasis during surgery in terms of iatrogenic effects on healthy ovarian tissue is debatable. The management strategy for patients with infertility associated with ovarian endometriosis consists of two components: surgical treatment and/or the use of assisted reproductive technologies. Laparoscopic cystectomy is indicated for cysts larger than 3 cm. Repeated surgical interventions in case of endometriosis do not improve fertility outcomes. Assisted reproductive technologies methods should be considered as a priority tactic in patients of older reproductive age with low ovarian reserve indicators or infertility duration of more than 2 years, as well as in cases of recurrent ovarian endometriomas. Management of such patients must be personalized and take into account the age, state of the ovarian reserve, duration of infertility, stage and number of surgical interventions for this disease.

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