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Abdel Halim Harrath عبد الحليم حراث

Professor

أستاذ, قسم علم الحيوان

كليات العلوم
P.O. Box 2455, Building 5
المنشورات
مقال فى مجلة
2013

The velocity of fetal growth is associated with the breadth of the placental surface, but not with the length

Barker, Saleh H. Alwasel, Abdul-Halaim Harrath, Jamal S. Aljarallah, Zeinab Abotalib, Clive Osmond, S.Y. Al Omar, Kent Thornburg, David J.P. . 2013

Objectives Studies of the placenta in pregnancies complicated by pre-eclampsia have led to the suggestion that tissue along the length and breadth of its surface has different functions. A recent study in Saudi Arabia showed that the body size of newborn babies was related to the breadth of the surface at birth but not to its length. We have now examined whether the association between placental breadth and body size reflects large size of the baby from an early stage of gestation or rapid growth between early and late gestation. Methods We studied 230 women who gave birth to singleton babies in King Khalid Hospital, Riyadh, Saudi Arabia. In total, 176 had ultrasound measurements both before 28 weeks and at 28 weeks or later, which we define as early and late gestation. We used these to calculate growth velocities between early and late gestation, which we expressed as the change in standard deviation scores over a 10-week period. Results The breadth of the placental surface was correlated with fetal growth velocity. The correlation coefficients were 0.24 (P=0.002) for the head circumference, 0.24 (P=0.001) for the biparietal diameter and 0.34 (P<0.001) for the abdominal circumference. The length of the surface was not related to fetal growth velocity. Conclusions Tissue along the breadth of the placental surface may be more important than tissue along the length in the transfer of nutrients from mother to baby. This may be part of a wider phenomenon of regional differences in function across the placental surface.

رقم المجلد
25
مجلة/صحيفة
AMERICAN JOURNAL OF HUMAN BIOLOGY
الصفحات
534-537
مزيد من المنشورات
publications

There may be regional specialisation in structure and function across the placental surface. In Riyadh, Saudi Arabia, the length and the breadth of the placental surface at birth were highly…

بواسطة S.H. Alwasel, A.H. Harrath, W.M. Aldahmash, Z. Abotalib, J.R. Nyengaard, C. Osmond, M.R. Dilworth, S.Y. Al Omar, A.A. Jerah, D.J.P. Barker
2014
publications

Toxicity of nanoparticles depends on many factors including size, shape, chemical composition, surface area and surface charge. Silver nanoparticles (AgNPs) are likely to enter the aquatic…

بواسطة Daoud Ali, Phool Gend Yadav, Sudhir Kumar, Huma Ali, Saud Alarifi, Abdul Halim Harrath
2014
publications

Boswellia papyrifera and Boswellia carterii diffuses smoke polluting air that adversely affects indoor environment that certainly harm human health. Therefore, this study aims at…

بواسطة Mukhtar Ahmed, Daoud Ali, Abdel Halim Harrath, Tajamul Hussain, Nasser Al-Daghri, Majed S. Alokail, Ravindranath H. Aladakatti, Mukhtar Ahmed G. Ghodesawar
2014