background and aim: horseshoe placenta is a variant of ring-shaped placenta. ring-shaped placenta is a rare anomaly seen in fewer than 1 in 6000 deliveries, which could be seen as horseshoe shape due to atrophy in a portion of the ring. this report refers to a possible relationship between the horseshoe shape placenta and preterm labor; although it has not been yet validated in the literature. ...

Background and aim: Horseshoe placenta is a variant of ring-shaped placenta. Ring-shaped placenta is a rare anomaly seen in fewer than 1 in 6000 deliveries, which could be seen as horseshoe shape due to atrophy in a portion of the ring. This report refers to a possible relationship between the horseshoe shape placenta and preterm labor; although it has not been yet validated in the literature. ...

We have investigated the structure of the cell adhesion molecule L1 by electron microscopy. We were particularly interested in the conformation of the four N-terminal immunoglobulin domains, because x-ray diffraction showed that these domains are bent into a horseshoe shape in the related molecules hemolin and axonin-1. Surprisingly, rotary-shadowed specimens showed the molecules to be elongate...

The biomechanical role of the horseshoe geometry of the acetabular cartilage is described using a three-dimensional mathematical model. It is shown that the acetabular fossa contributes to a more uniform articular contact stress distribution and a consequent decrease in the peak contact stress. Based on the results it is suggested that the characteristic horseshoe shape of the articular cartila...

The effect of the shape of six different periodic forces and second periodic forces on the onset of horseshoe chaos are studied both analytically and numerically in a Duffing oscillator. The external periodic forces considered are sine wave, square wave, symmetric saw-tooth wave, asymmetric saw-tooth wave, rectified sine wave, and modulus of sine wave. An analytical threshold condition for the ...

prom april, 1983 until december, 1987, 15 patients with horseshoe kidneys underwent surgery in shahid labbafi nejad medical center. pyelolithotomy was done in 11 cases, pyeloplasty in 2 cases, and nephrectomy in 2 cases. symphysiotomy was performed in 14 of these patients. preoperative angiography was not done in any of the cases and midline transperitoneal approach was utilized in all of the c...

Prom April, 1983 until December, 1987, 15 patients with horseshoe kidneys underwent surgery in Shahid Labbafi Nejad Medical Center. Pyelolithotomy was done in 11 cases, pyeloplasty in 2 cases, and nephrectomy in 2 cases. Symphysiotomy was performed in 14 of these patients. Preoperative angiography was not done in any of the cases and midline transperitoneal approach was utilized in all of ...

BACKGROUND: Placenta is a discoid, chorio-deciduate organ which connects the foetus with the uterine wall of mother. Maternal hypertension during pregnancy represents changes in morphological parameters of placenta. MATERIAL AND METHODS: 100 cases of hypertensive disorder of pregnancy and 100 placenta from normal cases between gestational age 28 to 42 weeks at SSG Hospital attached to Medical C...

conclusions the association of horseshoe kidney with a wandering spleen in this case may be due to an embryological anomaly. introduction a wandering spleen occurs when there is a laxity of the ligaments that fix the spleen in its normal anatomical position. case presentation this is a case report of a wandering spleen with horseshoe kidney in a 29-year-old male admitted with acute lower abdomi...

The human newborn is a reflection of the entirety of nutrients transferred from the maternal to the fetal circulation across the placenta during gestation. By extension, birth weight and newborn health depend on placental function. The goal of this paper is to introduce the use of optimal transport modeling to study the expected effects of (i) placental size, (ii) placental shape (separate from...