摘要:

SummaryCalcium supplementation during pregnancy attenuates maternal blood pressure and reduces the risk of pregnancy hypertension in Andean women with low calcium intake. Calcium supplementation might result in an increase in the vascular production of prostacyclin, and this might be responsible for the hypotensive effect of calcium supplementation. We measured the release of prostacyclin from umbilical arteries in two groups of nulliparous women:- 14 supplemented with 2 g elemental calcium daily from 20 weeks pregnant to delivery, and 11 assigned to placebo starch tablets. The levels of 6-keto-prostaglandin F1αwere similar in both groups. However, the calcium supplemented group had a mean blood pressure (106±8/70±8 mmHg; s.d.), lower (P<0.05) than the placebo group (112±10/74±6 mmHg). Although these data confirm that calcium supplementation attenuates maternal blood pressure in normal pregnancy in these women, the hypotensive effect is unlikely to be mediated by an increased vascular production of prostacyclin.

ISSN:1340-9654    

DOI:10.3109/01443619109013523

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

摘要:

SummarySerum osteocalcin (bone Gla protein) levels are reduced in pregnant women, and further decreased in pregnant drug abusers.Sixteen pregnant drug abusers (nine heroin and seven cocaine) were compared to 18 normal pregnant women at the time of delivery. Serum osteocalcin, parathormone and calcium were all lower (P<0.001) in the drug abusers and in the arterial and venous umbilical blood of their newborn (P<0.01). Parathormone levels were higher in the umbilical venous than in umbilical arterial blood in normal newborn (P<0.01) but not in the newborn of drug abusers. Maternal serum parathormone levels were negatively correlated (P<0.001) with drug intake during pregnancy. No differences were found between heroin users and cocaine users.These results suggest a relative hypoparathyroidism in drug abusers during pregnancy.The birth weights of the newborn of drug abusers were lower (P<001) than those of controls.

ISSN:1340-9654    

DOI:10.3109/01443619109013524

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

摘要:

SummaryFour cases of heterotopic pregnancy are reported. Clomiphene citrate treatment, endometriosis and an intra-uterine contraceptive device were all potential aetiological factors. One patient presented with a spontaneous miscarriage, the other three proceeded to term delivery.

ISSN:1340-9654    

DOI:10.3109/01443619109013525

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

摘要:

SummaryWe report the obstetric outcome of 33 pregnancies in 32 women treated with pulsatile luteinising hormone releasing hormone (LHRH) for various causes of anovulatory infertility. Of the 35 births, one twin, one triplet and 30 singleton births occurred. Preterm intervention was necessary during two pregnancies (one singleton and the triplet pregnancy) as a result of deteriorating hypertensive disease of pregnancy. The twin pregnancy delivered spontaneously at 36 weeks while all the other singleton pregnancies proceeded to term. Patients with a low pre-treatment body mass index [maternal weight in kg/ (height in metres)2] had lighter babies than those who embarked on treatment with a normal body mass index. The instrumental and operative delivery rates were 22 and 16 per cent, respectively. The male-female sex ratio (singleton pregnancies) was 0.55. There were no congenital abnormalities detected at birth.

ISSN:1340-9654    

DOI:10.3109/01443619109013526

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013527

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013528

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013529

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013530

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013531

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY

ISSN:1340-9654    

DOI:10.3109/01443619109013532

出版商:Taylor&Francis    

年代:1991

数据来源: WILEY