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Prediction of Placenta Accreta Using Hyperglycosylated Human Chorionic Gonadotropin
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Objectives: Hyperglycosylated human chorionic gonadotropin (hCG) is a variant of hCG. In addition, it has a different oligosaccharide structure compared to the regular hCG and promotes the invasion and differentiation of peripheral cytotrophoblast. This study aimed to measure hyperglycosylated hCG as a predictor in the diagnosis of placenta accreta. Materials and Methods: In general, 90 pregnant women were involved in this case-control study among which, 30 ladies (control group) were pregnant within the gestational age of ≥36 weeks with at least one previous caesarean section and a normal sited placenta in transabdominal ultrasound (TAU). The other 60 pregnant women (case group) were within a gestational age of ≥36 weeks at least, one previous caesarean section and placenta previa with or without signs of placenta accreta in TAU. Hyperglycosylated hCG and total hCG were measured in each group and the results of the surgery were followed up. Results: Hyperglycosylated hCG showed higher serum levels in patients with placenta accreta compared to those with placenta previa and control women. Hyperglycosylated hCG with an optimal cut point of (3) IU/L predicted placenta accreta in pregnant women with 90% specificity, 76.7% sensitivity, and 81.1% accuracy. Conclusions: The high specificity of the above approach makes it a good diagnostic tool (as a single test) for confirming placenta accreta in clinical settings. When this test is added to our established workup, its high positive predictive value makes it a suitable method within the algorithm of accreta confirmation when there is a high suspicion or insufficient evidence to the diagnosis of placenta accreta.

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Publication Date
Tue Jan 18 2022
Journal Name
Materials Science Forum
The Effect of Gamma Radiation on the Manufactured HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>2.4</sub>Ag<sub>0.6</sub>O<sub>8+δ</sub> Compound
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In this article four samples of HgBa2Ca2Cu2.4Ag0.6O8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa2Ca2Cu2.4Ag0.6O8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I

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