scholarly journals Fetal Sex and Fetal Environment Interact to Alter Diameter, Myogenic Tone, and Contractile Response to Thromboxane Analog in Rat Umbilical Cord Vessels

2021 ◽  
Vol 12 ◽  
Author(s):  
Benoit Sicotte ◽  
Michèle Brochu
Keyword(s):  
Cord Blood ◽  
Blood Vessels ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Contractile Response ◽  
Maximal Response ◽  
Myogenic Tone ◽  
Control Group ◽  
Control Groups ◽  
Umbilical Arteries

Fetal growth needs adequate blood perfusion from both sides of the placenta, on the maternal side through the uterine vessels and on the fetal side through the umbilical cord. In a model of intrauterine growth restriction (IUGR) induced by reduced blood volume expansion, uterine artery remodeling was blunted. The aim of this study is to determine if IUGR and fetus sex alter the functional and mechanical parameters of umbilical cord blood vessels. Pregnant rats were given a low sodium (IUGR) or a control diet for the last 7 days of pregnancy. Umbilical arteries and veins from term (22 day) fetal rats were isolated and set-up in wire myographs. Myogenic tone, diameter, length tension curve and contractile response to thromboxane analog U46619 and serotonin (5-HT) were measured. In arteries from IUGR fetuses, myogenic tone was increased in both sexes while diameter was significantly greater only in male fetuses. In umbilical arteries collected from the control group, the maximal contraction to U46619 was lower in females than males. Compared to the control groups, the maximal response decreased in IUGR male arteries and increased in female ones, thus abolishing the sexual dimorphism observed in the control groups. Reduced contractile response to U46619 was observed in the IUGR vein of both sexes. No difference between groups was observed in response to 5HT in arteries. In conclusion, the change in parameters of the umbilical cord blood vessels in response to a mild insult seems to show adaptation that favors better exchange of deoxygenated and wasted blood from the fetus to the placenta with increased myogenic tone.

scholarly journals The content of gas transmitters in umbilical cord blood and blood of newborns born to mothers with preeclampsia

2021 ◽  
Vol 66 (4) ◽  
pp. 53-57
Author(s):  
I. G. Popova ◽  
O. G. Sitnikova ◽  
S. B. Nazarov ◽  
G. N. Kuzmenko ◽  
M. M. Klychevа ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Life Support ◽  
Venous Blood ◽  
The Body ◽  
Control Group ◽  
Control Groups ◽  
And Control

To assess endothelial function in the newborns born to mothers with preeclampsia and without preeclampsia the scientists assessed the content of nitricoxide and hydrogen sulfide in the umbilical and venous blood of these children. The main group consisted of 80 women with moderate preeclampsia and their80 newborns; the control group included 50 children born to women without preeclampsia. The authors studied the content of nitric oxide by determining the totalnitrates and nitrites (NOx), hydrogen sulfide in mixed cord blood collected within 30 minutes after delivery, and venous blood taken from newborns on the 1-3rd day of life. Umbilical cord blood demonstrated no significant differences in the content of NO xand hydrogen sulfide in newborns of the main and control groups. However, in general, the study of umbilical cord blood revealed a relationship between the concentration of hydrogen sulfide and the possibility of developing intraventricular hemorrhagein a newborn of the main and control groups. In the venous blood there was a significant increase in the content of NOx and hydrogen sulfide in newborns born to mothers with preeclampsia. It may cause vasodilation asa compensatory reaction of the body during the period of postnatal adaptation of the child’s body, aimed at life support.

scholarly journals Histomorphometry of Umbilical Cord Blood Vessels in Preeclampsia

2010 ◽  
Vol 13 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Manuel V. Blanco ◽  
Hilda R. Vega ◽  
Rodolfo Giuliano ◽  
Daniel R. Grana ◽  
Francisco Azzato ◽  
...  
Keyword(s):  
Cord Blood ◽  
Blood Vessels ◽  
Umbilical Cord ◽  
Umbilical Cord Blood

scholarly journals Gestational Diabetes Mellitus in Pregnancy Increased Erythropoietin Level Affecting Differentiation Potency of Haematopoietic Stem Cell of Umbilical Cord Blood

2021 ◽  
Vol 8 ◽  
Author(s):  
Mohd Razif Mohd Idris ◽  
Fazlina Nordin ◽  
Zaleha Abdullah Mahdy ◽  
S. Fadilah Abd Wahid
Keyword(s):  
Diabetes Mellitus ◽  
Stem Cell ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
In Utero ◽  
Haematopoietic Stem Cell ◽  
Control Group

Background: The in utero environment has many factors that can support cell differentiation. Cytokines, chemokines and growth factors play big roles in haematopoietic mechanisms. Some diseases like gestational diabetes mellitus (GDM) might affect the environment and haematopoietic stem cell (HSC) quality. The aim of this study is to investigate the adverse effects of GDM on umbilical cord blood (UCB) HSC in terms of differentiation potency including the UCB parameters used for banking and transplantation purposes.Methods: UCB-HSC was collected from 42 GDM and 38 normal pregnancies. UCB-HSC was isolated and further enriched using immuno-magnetic separation beads (MACS). The UCB-HSC were cultured in methylcellulose media to investigate the differentiation potency. The level of erythropoietin (EPO) and insulin in the UCB plasma was measured using enzyme linked immunoassay (ELISA) technique.Result: The UCB parameters; volume, total nucleated count (TNC) and total CD34+ cells were significantly reduced in the GDM group compared to the control group. The number of HSC progenitors' colonies were significantly reduced in the GDM group except for progenitor BFU-E, which was significantly increased (GDM = 94.19 ± 6.21, Control = 73.61 ± 2.73, p = 0.010). This data was associated with higher EPO level in GDM group. However, the insulin level in the GDM group was comparable to the Control group.Conclusion: Our results suggest that the changes in the in utero environment due to abnormalities during pregnancy such as GDM might affect the differentiation potency of UCB-HSC. These findings can be considered as an additional parameter for the inclusion and exclusion criteria for UCB banking, particularly for mothers with GDM.

scholarly journals Gestational diabetes mellitus in pregnancy increased erythropoietin level affecting differentiation potency of haematopoietic stem cell of umbilical cord blood

2020 ◽  
Author(s):  
Mohd Razif Mohd Idris ◽  
Fazlina Nordin ◽  
Zaleha Abdullah Mahdy ◽  
S Fadilah Abd Wahid
Keyword(s):  
Diabetes Mellitus ◽  
Stem Cell ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
In Utero ◽  
Haematopoietic Stem Cell ◽  
Control Group

Abstract Background The in utero environment has many factors that can support cell differentiation. Cytokines, chemokines, and growth factors play big roles in haematopoietic mechanisms. Some diseases like gestational diabetes mellitus (GDM) might affect the environment and quality of haematopoietic stem cell (HSC). This study aims to investigate the adverse effects of GDM on umbilical cord blood (UCB) HSC regarding its differentiation potency, including the UCB parameters used for banking and transplantation purposes. Methods UCB-HSC was collected from 42 GDM and 38 normal pregnancies. UCB-HSC was isolated and further enriched using immuno-magnetic separation beads (MACS). The UCB-HSC were cultured in methylcellulose media to investigate the differentiation potency. The level of erythropoietin (EPO) and insulin in the UCB plasma was measured using enzyme-linked immunoassay (ELISA) technique. Results The UCB parameters, i.e., volume, total nucleated count (TNC), and total CD34+ cells, were significantly reduced in the GDM group compared to the control group. The number of HSC progenitor colonies was significantly reduced in the GDM group, except for progenitor BFU-E, which was significantly increased (GDM = 94.19 ± 6.21, Control = 73.61 ± 2.73, p = 0.010). This data was associated with a higher EPO level in the GDM group. However, the insulin level in the GDM group was comparable to the control group. Conclusion Our results suggest that the changes in the in utero environment due to abnormalities during pregnancy, such as GDM might affect the differentiation potency of UCB-HSC. These findings can be considered as an additional parameter for the inclusion and exclusion criteria for UCB banking, particularly for mothers with GDM.

scholarly journals The Influence of Gestational Diabetes Mellitus upon the Selected Parameters of the Maternal and Fetal System of Insulin-Like Growth Factors (IGF-1, IGF-2, IGFBP1-3)—A Review and a Clinical Study

2020 ◽  
Vol 9 (10) ◽  
pp. 3256
Author(s):  
Tomasz Gęca ◽  
Anna Kwaśniewska
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Peripheral Blood ◽  
Control Group ◽  
Study Group ◽  
Igfbp 3 ◽  
Insulin Like Growth Factors

Background: Gestational diabetes mellitus (GDM), defined as impaired glucose tolerance with onset or first recognition in pregnancy, increases the risk of not only maternal but also fetal and neonatal complications. Given the structural similarity of insulin-like growth factors with insulin and participation of components of the insulin-like growth factor system in glucose homeostasis, we hypothesized that the IGF axis is involved in the development of GDM complications or its pathogenesis. The aim of this study was to evaluate the effect of GDM on the selected parameters of the insulin-like growth factors (IGF-1, IGF-2, IGFBP1-3) in the maternal and fetal blood. Methods: The clinical material of this case-control study included 109 pregnant women and their offspring. The study group (n = 120) consisted of 60 patients with diagnosed gestational diabetes and their newborn babies. The control group (n = 98) comprised 49 healthy parturients and their offspring. We measured the concentrations of IGF-1, IGF-2, IGFBP-1, IGFBP-2, IGFBP-3, insulin and glucose made by the ELISA method in peripheral blood serum in patients suffering from GDM and pregnant women without GDM, and in the umbilical cord blood of newborn babies born to them. Results: The analysis of concentrations of IGF-1, -2 and IGFBP-3 in peripheral blood as well as umbilical cord blood did not demonstrate a statistically significant difference between the study group and the control group. Significantly lower concentration of IGFBP-1, IGFBP-2 in peripheral blood and in umbilical cord blood was detected in the study group in comparison to the control group. A statistically positive correlation between the concentration of IGF-1 in umbilical cord serum of newborn babies born to women with gestational diabetes and the length of a baby after its birth was observed. Conclusions: Gestational diabetes mellitus does not significantly affect the concentrations of IGF-1, -2, IGFBP-3 in the peripheral blood and umbilical cord blood, but has the greatest influence on maternal and fetal IGFBP-2 concentrations. A positive correlation between the concentration of IGF-1 in umbilical cord blood and the length of a newborn suggests an influence of IGF-1 on the process of fetal development.

Use of Human Umbilical Cord Serum to Treat Animal Skin Burns

2019 ◽  
Vol 28 (2) ◽  
pp. 165-173
Author(s):  
Hanan J. Kassab ◽  
Maysoon A. MERDAW ◽  
Intesar J. Al- Ramahi ◽  
Alaa A. Alasadi ◽  
Sawsan Al Mousauy ◽  
...  
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Burn Injury ◽  
Healing Process ◽  
Boiling Water ◽  
Control Group ◽  
Human Umbilical Cord Blood ◽  
Human Umbilical Cord ◽  
Hair Regrowth

Objective: The objective of the study was to test the hypothesis, that umbilical cord blood crude serum applied topically with its high concentration of growth factors may promote an early healing for animal models with burn injury. Methods:  Fresh human umbilical cord blood UCBS was collected and screened for transmitted diseases such as hepatitis B, hepatitis C and HIV. Mice and rabbits were scalded by boiling water and chemical burning by NaOH, then treated with UCBS. In comparison with a Cetrimide treated group and a control group (without treatment). The UCBS was subjected to microbial testing to demonstrate the presence or absence of extraneous viable contaminating microorganisms. Results: Topical application of UCBS promoted the healing process; complete healing was seen after 10 days for the mice group and in 7 days in the rabbit group. Cetrimide group applied to the rabbit showed slow healing and needed 10 days for hair regrowth. Control group in both mice and rabbits showed very slow response and the burn area diameter remained the same for over 10 days, and no hair regrowth was obvious after 10 days.    Conclusion: The results of the current study indicated that UCBS is a promising therapy for the healing of burns by boiling water and/or chemical substance, more clinical trials are needed to further explore the long-term effects after UCBS use.

Platelet-Derived Microparticels Stimulate Proliferation of Colony-Forming Unit Granulocyte-Macrophage of Umbilical Cord Blood Hematopoietic Stem Cells.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 4191-4191
Author(s):  
Bao-An Chen ◽  
Fei Fei ◽  
Cheng-Yin Huang ◽  
Cui-Ping Li ◽  
Xiao-Ping Pei ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Cord Blood ◽  
Adhesion Molecules ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Hematopoietic Cells ◽  
Control Group ◽  
Hematopoietic Stem ◽  
Hematopoietic Recovery

Abstract Umbilical Cord blood has become an important source of hematopoietic stem-progenitor cells for transplantation, however hematopoietic recovery after transplantation with umbilical cord blood is slower than with bone marrow or mobilized peripheral blood. Adhesion molecules on hematopoietic cells are involved in hematopoietic cells’ homing, which is considered the most important step of hematological recovery. Some articles indicated that expressions of adhesion molecules on CD34+ cells could predict the time to hematopoietic recovery after transplantation with bone marrow and peripheral blood of many adhesion molecules (such as CD62, CXCR4) are significantly lower on umbilical cord blood than on bone marrow. It is a possible reason for the difficulty in hematopoietic recovery after umbilical cord blood transplant. Platelet -derived microparticles (PMPs) are submicroscopic (<1 μm) membrane vesicles released from platelet if they are stimulated with agonists such as thrombin, collagen, or calcium ionophore A23187 or if exposed to high-stress shear forces. PMPs express several platelet-endothelium attachment receptors on their surface, for example, glycoprotein IIb/IIIa (CD41), Ib and IaIIa, and P-selectin (CD62P) and several other platelet relevant receptors such as CXCR4 and PAR-1. Some articles indicate that PMPs can affect the function of hematopoietic stem cells by increasing the adhesion of hematopoietic cells to fibrinogen, which suggests that PMP-transferred CD41 antigen plays an important role in this process. PMPs can also increase the survival of human hematopoietic cells including human CD34+ clonogenic progenitors. In our research, we observe the function of PMP to affect the cloning efficiency of colony-forming unit granulocyte-macrophage (CFU-GM). We adopt different concentrations of Thrombin (2U/ml, 1.5U/ml, 1.0U/ml and 0.5U/ml) to activate the platelet and acquire PMPs. Then PMPs were evaluated by using flow cytometry. Based on the result that stimulation of platelets by Thrombin (1U/ml) can acquire the best efficiency of PMPs, we used this concentration in all subsequent experiments. Umbilical cord mononuclear cells (MNCs) were obtained from healthy donors and isolate the MNCs by Ficoll-Hypaque density gradient centrifugation. Briefly, MNCs incubated with or without PMPs cultured in 2.7% methylcellulose. CFU-GM growth was stimulated with 30% umbilical cord serum, rhIL-3 and rh GM-CSF. Cultures were incubated at 37°C in a fully humidified atmosphere supplemented with 5% CO2. Colonies were counted under an inverted microscope after 7 or 10 days. The research was divided into four groups: 1. control group; 2. PMPs(10μg/ml); 3. PMPs(50μg/ml); 4. PMPs(100μg/ml). The colony formation was enhanced with PMPs and is dependently stimulated with PMPs. The number of colonies in the group of PMPs(100μg/ml) is more than that of other groups. The number of colonies in control group, PMPs(10μg/ml), PMPs(50μg/ml) and PMPs(100μg/ml) are 57.4±3.2, 65.6±5.6, 77.1±1.7 and 87.8±5.0 per 1×105 respectively. These increases in different groups were statistically significant when compared with control group(p<0.05). To sum up, PMPs can affect the cloning efficiency of CFU-GM of umbilical cord hematopoietic stem cells and the efficiencies are depended on the concentration of PMPs.

scholarly journals Effect of Docosahexaenoic Acid on Apoptosis and Proliferation in the Placenta: Preliminary Report

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ewa Wietrak ◽  
Krzysztof Kamiński ◽  
Bożena Leszczyńska-Gorzelak ◽  
Jan Oleszczuk
Keyword(s):  
Docosahexaenoic Acid ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Intrauterine Growth Restriction ◽  
Caspase 3 ◽  
Control Group ◽  
Omega 3 ◽  
Ki 67 ◽  
Pathological Pregnancy

Introduction.Observational studies confirm a higher incidence of preeclampsia in patients with low erythrocyte concentrations of omega-3 fatty acids. Observations point to an association of disorders of pregnancy, such as intrauterine growth restriction (IUGR) and preeclampsia, with excessive apoptosis. One potential mechanism of action of docosahexaenoic acid (DHA) promoting a reduction in the risk of pathological pregnancy may be by influencing these processes in the placenta.Materials and Methods.We investigated 28 pregnant women supplemented with a fish oil product containing 300 mg DHA starting from pregnancy week 20 until delivery (DHA group). The control group consisted of 50 women who did not receive such supplementation (control group). We determined the expression of Ki-67 and p21 as markers of proliferation and caspase 3 activity as a marker of apoptosis and DHA levels in umbilical cord blood.Results.Caspase 3 activity was significantly lower in the DHA group in comparison to the control group. Umbilical cord blood DHA concentration was higher in the DHA group. The expression of the proteins p21 and Ki-67 did not differ significantly between the groups.Conclusions.We observed an association between DHA supplementation and inhibition of placental apoptosis. We did not find an association between DHA and proliferation process in the placenta.

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