scholarly journals P21.07: Association between uterine artery blood flow volume and fetal weight gain

2017 ◽  
Vol 50 ◽  
pp. 223-224
Author(s):  
H. Arneberg ◽  
T. Andersen ◽  
T. Scholbach ◽  
L. Loraas ◽  
T.M. Eggebø
Keyword(s):  
Blood Flow ◽  
Weight Gain ◽  
Uterine Artery ◽  
Fetal Weight ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume

scholarly journals P07.04: Uterine artery blood flow volume is reduced in human pregnancies with increase utero-placental downstream impedance

2006 ◽  
Vol 28 (4) ◽  
pp. 569-569
Author(s):  
S. Boito ◽  
S. Rigano ◽  
G. Pennati ◽  
L. Mandia ◽  
A. Padoan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Uterine Artery ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume

scholarly journals OP10.08: Is uterine artery blood flow volume correlated to placental site in normal human pregnancies?

2006 ◽  
Vol 28 (4) ◽  
pp. 481-481
Author(s):  
S. Rigano ◽  
S. Boito ◽  
S. Fiore ◽  
G. Pennati ◽  
A. Padoan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Uterine Artery ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume ◽  
Placental Site ◽  
Normal Human

scholarly journals P07.05: Uterine artery blood flow volume growth rate in uncomplicated human pregnancies

2006 ◽  
Vol 28 (4) ◽  
pp. 570-570 ◽  
Author(s):  
S. Rigano ◽  
S. Boito ◽  
S. Fiore ◽  
G. Pennati ◽  
A. Padoan ◽  
...  
Keyword(s):  
Growth Rate ◽  
Blood Flow ◽  
Uterine Artery ◽  
Volume Growth ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume

scholarly journals OP13.11: Uterine artery blood flow volume: ranges in uncomplicated human pregnancies

2006 ◽  
Vol 28 (4) ◽  
pp. 491-492
Author(s):  
S. Rigano ◽  
S. Boito ◽  
S. Fiore ◽  
G. Pennati ◽  
A. Padoan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Uterine Artery ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume

scholarly journals OP15.01: Absolute uterine artery blood flow volume is increased in twin human pregnancies compared to singletons

2007 ◽  
Vol 30 (4) ◽  
pp. 506-506
Author(s):  
S. Rigano ◽  
S. Boito ◽  
E. Maspero ◽  
L. Mandia ◽  
A. Padoan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Uterine Artery ◽  
Flow Volume ◽  
Artery Blood Flow ◽  
Blood Flow Volume

scholarly journals 144 Nutritional advances in fetal and neonatal development: stage of gestation and placental nutrient supply

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 120-120
Author(s):  
Caleb O Lemley
Keyword(s):  
Blood Flow ◽  
Fetal Growth ◽  
Uterine Artery ◽  
Environmental Changes ◽  
Nutrient Supply ◽  
Fetal Weight ◽  
Nutrient Restriction ◽  
Compensatory Mechanism ◽  
Artery Blood Flow ◽  
Low Input

Abstract Placental and fetal development is especially sensitive to direct and indirect effects of the maternal environment. The duration and timing of environmental insults or stimuli in relation to the stage of gestation influences the phenotypic outcomes of offspring. Nutrient restriction during early gestation, such as developing heifers on low-input forage-based management schemes followed by nutrient re-alimentation at pregnancy confirmation, increased late-term uterine artery blood flow relative to maternal body weight compared with conventionally developed heifers. In this study, calf birth weights were not different between low-input vs conventionally developed heifers, which may indicate a compensatory mechanism to safeguard late-term fetal growth. In comparison, nutrient restriction during early to mid-gestation (from day 50 to 180 of pregnancy) decreased uterine artery blood flow, decreased fetal weight, and increased placental blood vessel density in both Brahman and Angus heifers. Moreover, the efficiency of uterine artery blood flow relative to fetal weight was improved in nutrient restricted dams versus adequate fed as well as Brahman vs Angus. These responses indicate improved placental nutrient supply following early to mid-gestation nutrient restriction. Apart from nutritional management, season and melatonin supplementation impacts placental nutrient supply in cattle. Specifically, spring calving heifers with increased uterine artery blood flow had heavier calves at birth compared with their fall calving counterparts. Although several seasonal environmental changes can influence performance and reproductive traits, specific changes in hormone concentrations as a result of photoperiod may alter blood distribution to the reproductive tract. This is apparent when supplementing dairy heifers and beef cows with melatonin during the last third of pregnancy, which increased uterine artery blood flow and calf weaning weights compared with non-supplemented controls. Elucidating the consequences of specific supplements on the continual plasticity of placental nutrient supply will allow us to determine important mediators of fetal growth and development.

scholarly journals PSII-7 Uterine artery hemodynamics and placentome quantification during maternal nutrient restriction in beef cattle

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 237-237
Author(s):  
Dana Reid ◽  
Caleb O Lemley ◽  
Kalisha Yankey ◽  
Derris Burnett
Keyword(s):  
Blood Flow ◽  
Beef Cattle ◽  
Uterine Artery ◽  
Late Gestation ◽  
Fetal Weight ◽  
Nutrient Restriction ◽  
Artery Blood Flow ◽  
Uteroplacental Blood Flow ◽  
Group 2 ◽  
Group 1

Abstract Proper fetal nutrition via adequate uteroplacental blood flow is critical for maximizing fetal development and reducing mortality. However, our understanding of adaptations during maternal nutrient restriction is incomplete. The purpose of this study was to determine the effect of nutrient restriction during mid to late gestation on utero-placental hemodynamics and placentome morphometrics in gestating beef cattle. Animals (n = 10) were randomly assigned one of 2 treatments: Control (CON; 100% NRC Requirements) vs Restricted Feed (NR; 60% of NRC Requirements) from 140 to 240 days of gestation. Hemodynamic parameters were collected by Doppler ultrasonography 1 week prior to slaughter from the ipsilateral and contralateral uterine arteries, after which, total uterine artery blood flow was calculated. Six animals (n = 3 per treatment) were slaughtered on day 240 of gestation (Group 1) and the remaining 4 animals were slaughtered on 265 ± 15 days (Group 2). Placentome tissues were harvested for weight and number determination. Placentome number decreased (P = 0.01) in nutrient restricted (49 ± 6) versus control (83 ± 6) fed dams. There was an interaction between treatment and group in which ipsilateral diameter increased (P < 0.05) in group 2 NR animals versus group 2 CON animals while there was no difference between NR and CON in group 1. There was no difference (P = 0.30) in total uterine artery blood flow in fetal weight, which averaged 212 ± 37 mL/min*kg in nutrient restricted versus 153 ± 34 mL/min*kg in control fed dams. In summary, these data indicate limited alterations in uterine artery blood flow and fetal weight in nutrient restricted dams during the last half of gestation. The decrease in placentome number with no difference in placentome weight could indicate larger placentomes in nutrient restricted dams were able to compensate for the reduction in total number.

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