scholarly journals Human Placenta Exosomes: Biogenesis, Isolation, Composition, and Prospects for Use in Diagnostics

2021 ◽  
Vol 22 (4) ◽  
pp. 2158 ◽  
Author(s):  
Evgeniya E. Burkova ◽  
Sergey E. Sedykh ◽  
Georgy A. Nevinsky
Keyword(s):  
Fetal Development ◽  
Biochemical Composition ◽  
First Trimester ◽  
Maternal Blood ◽  
Target Cells ◽  
Normal Functioning ◽  
Maternal Circulation ◽  
Placental Dysfunction ◽  
Bioactive Proteins ◽  
First Trimester Of Pregnancy

Exosomes are 40–100 nm nanovesicles participating in intercellular communication and transferring various bioactive proteins, mRNAs, miRNAs, and lipids. During pregnancy, the placenta releases exosomes into the maternal circulation. Placental exosomes are detected in the maternal blood even in the first trimester of pregnancy and their numbers increase significantly by the end of pregnancy. Exosomes are necessary for the normal functioning of the placenta and fetal development. Effects of exosomes on target cells depend not only on their concentration but also on their intrinsic components. The biochemical composition of the placental exosomes may cause various complications of pregnancy. Some studies relate the changes in the composition of nanovesicles to placental dysfunction. Isolation of placental exosomes from the blood of pregnant women and the study of protein, lipid, and nucleic composition can lead to the development of methods for early diagnosis of pregnancy pathologies. This review describes the biogenesis of exosomes, methods of their isolation, analyzes their biochemical composition, and considers the prospects for using exosomes to diagnose pregnancy pathologies.

scholarly journals LABOR COURSE AND CONDITION OF NEWBORNS IN WOMEN WITH PLACENTAL DYSFUNCTION DUE TO GESTATIONAL ENDOTHELIOPATHY

World Science ◽  
2019 ◽  
Vol 2 (9(49)) ◽  
pp. 4-8
Author(s):  
V. V. Lazurenko ◽  
I. B. Borzenko ◽  
D. Yu. Tertyshnik
Keyword(s):  
Birth Weight ◽  
Preterm Birth ◽  
Caesarean Section ◽  
Fetal Growth ◽  
Fetal Distress ◽  
First Trimester ◽  
Control Group ◽  
Perinatal Complications ◽  
Placental Dysfunction ◽  
First Trimester Of Pregnancy

The purpose of the study is to evaluate the effect of placental dysfunction caused by gestational endotheliopathy on the course of labor and the condition of the newborn. The first group consisted of 70 patients with placental dysfunction with gestational endotheliopathy confirmed by laboratory-instrumental findings in the first trimester of pregnancy. The control group included 30 pregnant women with physiological gestational course. PD secondary to GE leads to preterm birth, fetal distress, increases the percentage of caesarean section, contributes to the delay of fetal growth and birth weight, poor infant status and perinatal complications.

Pregnancy after influenza in the first trimester

2018 ◽  
pp. 14-18
Author(s):  
V.V. Kaminskyi ◽  
◽  
O.I. Zhdanovich ◽  
T.V. Kolomiychenko ◽  
A.D. Derkach ◽  
...  
Keyword(s):  
Pregnant Women ◽  
High Frequency ◽  
Clinical Manifestations ◽  
Birth Asphyxia ◽  
Fetal Distress ◽  
First Trimester ◽  
Placental Insufficiency ◽  
Perinatal Complications ◽  
Placental Dysfunction ◽  
First Trimester Of Pregnancy

The endpoint of the negative impact of adverse processes in the mother’s body with influenza is the formation of placental insufficiency, the basis of which is a violation of the uteroplacental blood flow. The objective: to study the features of the course of pregnancy, the state of the fetus and the newborn after the influenza in the first trimester of pregnancy. Materials and methods. 120 women who had the influenza in the first trimester of pregnancy were examined. In 68 (56.7%) pregnant women signs of feto-placental dysfunction were observed, 2 groups were distinguished: the main group - 68 patients with feto-placental dysfunction, the comparison group – 52 pregnant women without signs of feto-placental insufficiency. Results. 3 times more often than women without manifestations of placental insufficiency (42.6% versus 15.4%; p<0.05) a severe course of influenza was observed, it accompanied by a high frequency of clinical manifestations, including in almost all patients (95.6% versus 67.3%; p<0.05), body temperature rose to 38 °C and higher, and in 61.7% of women it stayed for 4–6 days (versus 11.5%; p<0.05). Among the complications of influenza: bronchitis (25.0% versus 9.3%; p<0.05), pneumonia (17.6% versus 5.7%; p<0.05), sinusitis (17.6% versus 7.7%; p<0.05). The threat of abortion was noted in 57.4% of cases, the threat of preterm birth was observed in 39.7% of women. Most often, placental dysfunction was associated with fetal distress (76.5% versus 13.5%; p<0.05) and growth retardation (54.4% versus 3.8%; p<0.05). 32.4% versus 13.5% of women had preeclampsia (p<0.05). The frequency of both polyhydramnios (17.6%) and low water (10.3%) is significantly higher. By cesarean section, 35.3% women were delivered (versus 15.4%, (p<0.05). Delivery was preterm in 17.6% of women versus 7.7% (p<0.05). Premature discharge of amniotic fluid (17.6%) and pathological blood loss during childbirth (16.2%), fetal distress during childbirth (48.5% versus 9.6%; p<0.05) were noted. Maternal placental dysfunction, fetal distress, prematurity (17.6%) and malnutrition (22.1%) led to a high incidence of birth asphyxia (46.5% versus 19.2%, p <0.05). Half (51.5%) of children had disadaptation syndromes, most often neurological disorders (32.4% versus 11.5%; p<0.05) and respiratory disorders (27.9% versus 7.7%; p<0.05). Conclusion. Influenza in early pregnancy with a severe course and a high frequency of complications is associated with a high frequency of feto-placental dysfunction and other obstetric and perinatal complications, which requires a more detailed study to determine risk factors and develop tactics for managing this category of pregnant women. Keywords: pregnancy, influenza, feto-placental dysfunction, obstetric and perinatal complications, newborn.

scholarly journals Clinical and Pathogenetic Causes of Developing Complications in Multiple Pregnancy

2020 ◽  
Vol 27 (1) ◽  
pp. E202016
Author(s):  
Iryna Nikitina ◽  
Volodymyr Boiko ◽  
Tetiana Babar ◽  
Natalia Kalashnik ◽  
Nataliia Ikonopistseva ◽  
...  
Keyword(s):  
Growth Factor ◽  
Pregnant Women ◽  
Multiple Pregnancy ◽  
First Trimester ◽  
Placental Growth Factor ◽  
Enzyme Linked Immunosorbent Assay ◽  
Full Time ◽  
Singleton Pregnancy ◽  
Placental Dysfunction ◽  
First Trimester Of Pregnancy

To assess the role of the placental growth factor in the development of gestational complications during multiple pregnancy, there was conducted a study of this indicator in serum of 320 pregnant women with multiple pregnancy in the first trimester and 40 pregnant women with singleton pregnancy (the control group).          The objective of the research was to study the effect of placental growth factors on the gestational process in multiple pregnancy.          Materials and Methods. There was conducted a prospective study of pregnancy and childbirth in 320 females with multiple pregnancy (the main group) and 40 healthy women with singleton pregnancy. The level of serum placental growth factor was determined by enzyme-linked immunosorbent assay using monoclonal antibodies in the first trimester of pregnancy. The indicators of the hemostasis system (vascular, platelet and coagulation components) were evaluated according to generally accepted methods. Doppler ultrasound of the placental and fetal blood flow was performed in the uterine arteries, the umbilical artery and vein, the fetal middle cerebral artery.          Results. Women with multiple pregnancy were at high risk of developing gestational complications such as preterm deliveries (67.8%, p<0.01), placental dysfunction, pre-eclampsia (17.5%, p<0.05). The disorders of the vascular platelet and coagulation hemostasis in the first trimester of pregnancy were the main risk factors for early termination of pregnancy. Low level of serum placental growth factor in pregnant women with multiple pregnancy in case of preterm delivery, placental dysfunction and pre-eclampsia (111.23 ± 8.4, 203.24 ± 6.4 and 305.86 ± 7.4 pg/ml), in comparison with the corresponding indicators in singleton pregnancy (418.2 ± 10.4 pg/ml), was proven to be a prognostic marker for the development of gestational complications.          Conclusions. Timely correction of gestational complications in multiple pregnancy with micronized progesterone, low molecular weight heparins, angio-protective agents allowed us to prolong pregnancy with monochorionic placentation type for 3.2 weeks (up to 34.2 ± 2.4 weeks) and provide full-time delivery of dichorionic twin pregnancy.

Real opportunities for early prenatal diagnosis of omphalocele

2020 ◽  
Author(s):  
O.L. Galkina, N.A. Savel'eva, I.V. Poddubnaya
Keyword(s):  
Prenatal Diagnosis ◽  
Fetal Development ◽  
Perinatal Outcome ◽  
Congenital Heart ◽  
Chromosomal Abnormalities ◽  
Heart Defects ◽  
First Trimester ◽  
Prenatal Counseling ◽  
First Trimester Of Pregnancy ◽  
Prenatal Examination

During 5 years in the first trimester of pregnancy 82 cases of congenital anomalies of fetal development were diagnosed, in 14 cases (17%) an omphalocele was found. An analysis of the results of prenatal examination of fetuses with omphalocele in an isolated and combined version has been carried out. In 78% of cases, omphalocele was combined with other fetal anomalies, most often with congenital heart defects (82%). The frequency of chromosomal abnormalities in fetuses with omphalocele was 69%. Perinatal outcome in the case of early prenatal omphalocele diagnosis is unfavorable in 93% of cases. Early prenatal diagnosis of omphalocele is possible in 100% of cases. Diagnosed in the first trimester of pregnancy, omphalocele is an indication for an extended anatomical evaluation of the fetus with the aim of forming a clinical hypothesis and conducting timely optimal prenatal counseling.

scholarly journals Household Air Pollution, Levels of Micronutrients and Heavy Metals in Cord and Maternal Blood, and Pregnancy Outcomes

2018 ◽  
Vol 15 (12) ◽  
pp. 2891 ◽  
Author(s):  
Ganiyu Arinola ◽  
Anindita Dutta ◽  
Oluwafemi Oluwole ◽  
Christopher Olopade
Keyword(s):  
Heavy Metals ◽  
Folic Acid ◽  
Birth Weight ◽  
Cord Blood ◽  
Pregnancy Outcomes ◽  
First Trimester ◽  
Maternal Blood ◽  
Blood Levels ◽  
Pollution Levels ◽  
First Trimester Of Pregnancy

Cooking with kerosene emits toxic pollutants that may impact pregnancy outcomes. Sixty-eight women in their first trimester of pregnancy, kerosene users (n = 42) and liquefied natural gas (LNG) users (n = 26), were followed until birth. Maternal and cord blood were collected immediately after birth. Levels of micronutrients and heavy metals were quantified. Pregnancy outcomes (gestation age (GA), birth weight (BW), and chest and head circumference) were also measured. Mean (± standard deviation (SD)) age of mothers in kerosene and LNG groups were similar (p = 0.734). Mean (±SD) BW of newborns of LNG users was significantly higher compared to newborns of kerosene users (3.43 ± 0.32 vs. 3.02 ± 0.43, p < 0.001). Mean GA (in weeks) was similar between the two groups (p = 0.532). Women in the kerosene group had significantly higher cord blood levels of zinc, lead, mercury, iodine and vitamin B6 and lower levels of folic acid compared to LNG users (p < 0.05). Newborns of kerosene users had reduced levels of zinc, lead, mercury, iodine, vitamins B6 and B12, folic acid, and homocysteine compared with LNG users (p < 0.05). Also, cooking with kerosene was significantly associated with reduced birth weight after adjusting for potential confounders (β ± standard error (SE) = −0.326 ± 0.155; p = 0.040). Smoke from kerosene stove was associated with reduced birth weight and micronutrients imbalance in mothers and newborns.

Sign in / Sign up

Export Citation Format

Share Document