scholarly journals Calcium levels in maternal milk: relationships with calcium intake during the third trimester of pregnancy

1998 ◽  
Vol 79 (6) ◽  
pp. 501-507 ◽  
Author(s):  
Rosa M. Ortega ◽  
Rosa M. Martínez ◽  
M. Elena Quintas ◽  
Ana M. López-Sobaler ◽  
Pedro Andrés

The aim of the present study was to investigate the relationship of Ca intake and serum Ca levels during the third trimester of pregnancy with levels of the same mineral in transition milk (days 13−14 of lactation) and mature milk (day 40 of lactation). The study subjects were a group of fifty-seven healthy, lactating mothers aged between 18 and 35 years (mean 27 (SD3·7) years) whose pregnancies and labour were attended by the Department of Obstetrics and Gynaecology of Cuenca INSALUD Hospital, Spain. Ca intake during the third trimester was determined by recording the consumption of foods over a 5 d period and by registering Ca provided by dietary supplements. The same method was used to investigate the intake of protein, vitamin D, fibre and Fe, nutrients that could affect the use of dietary Ca. Ca levels in maternal serum during this stage of pregnancy, during lactation and in transition and mature milk samples, were determined using 2-cresolphthalein complexone. During pregnancy 70·2% of subjects showed Ca intakes below 1100mg/d (75th percentile). The consumption of Ca supplements was very small and hardly modified the mean quantity supplied by the diet. Subjects with an intake < 1100mg/d showed no fall in Ca levels in serum, either during pregnancy or lactation, nor were decreased levels found in transition milk. However, these subjects showed lower Ca levels in mature milk (5·95 (SD1·56) mmol/1) than did subjects with greater Ca intakes (6·82 (SD1·31) mmol/1). This may suggest that breast-fed babies of mothers with lower Ca intakes during pregnancy also receive less Ca.

1998 ◽  
Vol 79 (5) ◽  
pp. 431-437 ◽  
Author(s):  
Rosa M. Ortega ◽  
M. Elena Quintas ◽  
Pedro Andrés ◽  
Rosa M. Martínez ◽  
Ana M. López-Sobaler

The aim of the present investigation was to study the relationship between ascorbic acid status during the third trimester of pregnancy and levels of this vitamin in transition milk (days 13–14 of lactation) and mature milk (day 40 of lactation). To this end, the pregnancies and lactation periods of fifty-seven healthy women between 18 and 35 years of age (27 (sd 3.7) years) were monitored. Vitamin intake during the third trimester was determined by recording the consumption of foods over 5 d, and by registering the quantities provided by dietary supplements. Ascorbic acid levels in maternal serum during this stage of pregnancy, and in transition and mature milk samples, were determined by spectrophotometry. Those subjects with ascorbic acid intakes below that recommended (80 mg/d) (group L) showed lower consumption of fruit and vegetables than did those with greater intakes (group H). The consumption of ascorbic acid supplements was very low, and was only seen in three group H subjects. The difference in ascorbic acid intake was reflected at serum level. Group L subjects showed significantly lower serum values than did group H subjects (30.1 (sd 36.3) μmol/l compared with 101.1 (sd 168.1) μmol/l). Vitamin intake also influenced the composition of transition milk. Group L subjects showed significantly lower levels of ascorbic acid in milk than did group H subjects (255.5 (sd 220.3) μmol/l compared with 437.8 (sd 288.4) μmol/l). The results of the present study reveal the need to increase the consumption of fruits and vegetables during pregnancy and to monitor maternal ascorbic acid intake and vitamin C status.


2020 ◽  
Vol 6 (1) ◽  
pp. 32-37
Author(s):  
Dewi Aprilia Ningsih ◽  
Sanisahhuri Sanisahhuri ◽  
Dwi Mulyani

Sexual intercourse will be better done in the third trimester because the physical and mental conditions of pregnant women support, of course with the right sexual position. This study aims to study the relationship of knowledge with sexual behavior of pregnant women in third trimester in the working area of ​​Puskesmas Basuki Rahmad Bengkulu City.This study uses a cross sectional design. The population in this study were all pregnant women in the third trimester in the working area of ​​the health center, basuki rahmad, bengkulu city. Sample appearance technique in this study uses purposive sampling. A sample of 35 third trimester pregnant women was obtained. data collection in this study uses a questionnaire.The results were obtained: 15 (42.9%) respondents had good knowledge, 24 (68.6%) respondents had sexual intercourse during the third trimester of pregnancy. There was a significant relationship between the knowledge of third trimester pregnant women with third trimester pregnant women sexual behavior. in the Puskesmas Basuki Rahmad Working Area, the City of Bengkulu with the category of moderate relations. To various parties, especially pregnant women in the third trimester to increase their knowledge about sexual relations during the third trimester of pregnancy and for health workers to improve the information provided to pregnant women both in terms of counseling and at the time of pregnancy examination.  


PEDIATRICS ◽  
1956 ◽  
Vol 18 (5) ◽  
pp. 721-729
Author(s):  
I. F. Gittleman ◽  
J. B. Pincus ◽  
E. Schmerzler ◽  
M. Saito

The incidence of hypocalcemia on the first day of life in mature infants born to mothers per vias naturales who had uncomplicated pregnancies and labors is 1.2%. In our series of infants born to mothers who had complications during pregnancies and/or labors, every one had hypocalcemia on the first day of life. Infants delivered by cesarean section because of cephalopelvic disproportion or because of "repeat" section had an incidence of hypocalcemia of 13.7% while those infants delivered by section because their mothers had pathologic states during pregnancy had an incidence of 36.8%. The effect of complications during pregnancy and/or labor was not apparent when we studied the incidence of hypocalcemia in premature infants on the first day of life. We noted that the avenue of birth or the presence or absence of complications during pregnancy and/or labor did not affect significantly the incidence of hypocalcemia on the first day of life. There is a significant positive correlation between weight of the premature infant and the total concentration of calcium in the plasma. There was no significant statistical correlation between the mean concentrations of protein and of calcium in the serums of the premature infants studied. We have speculated that, because premature births occur during the third trimester of pregnancy, the adrenocorticosteroids, which attain their highest concentration in the maternal serum during this period, may exercise a depressing effect on the concentrations of calcium in plasma of infants.


2021 ◽  
Vol 29 (1) ◽  
pp. 39-45
Author(s):  
Gülşen Doğan Durdağ ◽  
Şafak Yılmaz Baran ◽  
Songül Alemdaroğlu ◽  
Hakan Kalaycı ◽  
Seda Yüksel Şimşek ◽  
...  

Objective Progesterone, which is necessary for maintenance of pregnancy, is secreted by corpus luteum until 10 weeks of gestation, and is produced from the placenta afterwards. Aim of this study is to investigate the relationship of serum progesterone concentrations measured in 6–8 weeks and 12 weeks of gestation with the parameters that may demonstrate placental dysfunction in the third trimester. Methods Relationship of the progesterone values measured at 6–8 weeks and 12 weeks of gestation with indicators of placental dysfunction, including hypertensive disorders of pregnancy, intrauterine growth restriction, preterm delivery and low birth weight, were evaluated. Furthermore, based on a previous study, two groups with progesterone levels below and above 11 ng/mL in early pregnancy were formed, and the difference between these groups regarding gestational outcomes were investigated. Results Progesterone concentrations at 6–8 and 12 weeks of gestation were not significantly different between the subgroups with and without gestational complications indicating placental dysfunction (p>0.05 for all parameters). As for the two groups, significant difference was not found in terms of third trimester complications due to progesterone cut-off of 11 ng/mL at 6-8 weeks of gestation. Conclusion In this study, we did not find progesterone values measured at early and late first trimester periods to be associated with placental dysfunction in the third trimester. Also, we did not validate a previously suggested threshold value to predict gestational outcome. Therefore, routine first trimester progesterone screening in guiding pregnancy follow-up may not be appropriate.


2013 ◽  
Vol 20 (3) ◽  
pp. 259-265
Author(s):  
Monica Vereş ◽  
Aurel Babeş ◽  
Szidonia Lacziko

Abstract Background and aims: Gestational diabetes represents a form of diabetes diagnosed during pregnancy that is not clearly overt diabetes. In the last trimester of gestation the growth of fetoplacental unit takes place, thus maternal hyperglycemia will determine an increased transplacental passage, hyperinsulinemia and fetal macrosomia. The aim of our study was that o analyzing the effect of maternal glycemia from the last trimester of pregnancy over fetal weight. Material and method: We run an observational study on a group of 46 pregnant women taken into evidence from the first trimester of pregnancy, separated in two groups according to blood glucose determined in the third trimester (before birth): group I normoglycemic and group II with hyperglycemia (>92mg/dl). Results: The mean value of third trimester glycemia for the entire group was of 87.13±22.03. The mean value of the glycemia determined in the third trimester of pregnancy was higher in the second group (109.17 mg/dl) in comparison to the first group (74.,21 mg/dl). The ROC curve for third trimester glycemia as fetal macrosomia appreciation test has an AUC of 0.517. Conclusions: Glycemia determined in the last trimester of pregnancy cannot be used alone as the predictive factor for fetal macrosomia.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Li-Xia Zhang ◽  
Ning Dong ◽  
Rui-Xia Yang ◽  
Ang Li ◽  
Xuan-Mei Luo ◽  
...  

AbstractObjectivesGestational thrombocytopenia (GT) is the most common cause of thrombocytopenia during pregnancy. However, the occurrence and severity of thrombocytopenia throughout pregnancy in Chinese women are not fully defined.MethodsWe analyzed platelet counts in Chinese women who received prenatal care and/or delivered at the First Affiliated Hospital with Nanjing Medical University between January 2, 2018 and July 19, 2018 in China. These platelet counts were compared with those of nonpregnant women in the same study period.ResultsThe platelet counts of all women continued to decrease significantly each trimester (p < 0.0001). The mean platelet counts of the 818 women who had pregnancy-related complications were lower than those of the 796 women who had uncomplicated pregnancies during the third trimester (p = 0.047). At the time of delivery, platelet counts less than 150 × 109/L were more common in women with pregnancy-related complications than in women with uncomplicated pregnancy (26.7% vs. 19.7%, p = 0.03).ConclusionsPlatelet counts decrease throughout pregnancy in Chinese women and platelet counts less than 150 × 109/L were more common in women with pregnancy-related complications than in women with uncomplicated pregnancy. The pregnant women should be paid more attention for thrombocytopenia to avoid the occurrence of bleeding events.


1970 ◽  
Vol 30 (2) ◽  
pp. 583-587 ◽  
Author(s):  
Albert V. Carron

The present report is based on reanalysis of data of Marisi (1969) in order to examine the relationship of consistency of motor response among the component responses of a single motor task. 120 high school Ss were tested on a special task, the rho. A single trial on this motor task can be logically separated into three component motor responses: reaction time, a short circular movement, and a short linear movement. The results indicated that consistency of motor response was moderately reliable within the response components but tended to be response-component specific. Further, both the reliability and specificity of motor-response consistency were independent of the size of the mean performance scores.


2007 ◽  
Vol 8 (4) ◽  
pp. 249-260 ◽  
Author(s):  
Barbara Waag Carlson ◽  
Virginia J. Neelon ◽  
John R. Carlson ◽  
Marilyn Hartman ◽  
Sunil Dogra

The aim of this exploratory study was to examine the relationship of electroencephalogram (EEG) arousals to breathing patterns and the relationship of both arousals and breathing patterns to arterial oxygenation during sleep in older adults. Five older adults were monitored using standard polysomnography. Records were divided into 5-min segments and breathing patterns identified based on the level of respiratory periodicity and the variability in the frequency of breathing cycles. Standard criteria were used to determine sleep states and occurrence of EEG arousals. High respiratory periodicity was seen in 23% of the segments, whereas 24% had low respiratory periodicity with minimal variability in the frequency of breathing (Type A low respiratory periodicity) and 53% had low respiratory periodicity with high variability in the frequency of breathing (Type B low respiratory periodicity). Nearly all (97%) segments with high respiratory periodicity had EEG arousals, whereas fewer segments (33%) with low respiratory periodicity had arousals, regardless of the stage of sleep. Desaturations occurred more often in segments with high respiratory periodicity, F (2,4) = 57.3, p < .001, but overall, the mean SaO2 of segments with high respiratory periodicity did not differ from levels seen in segments with low respiratory periodicity, F( 2,4) = 0.77, ns. Our findings suggest that high respiratory periodicity is a common feature of EEG arousals and, in older adults, may be important for maintaining oxygen levels during desaturations during sleep.


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