Now showing items 1-10 of 69
In vitro fertilization failure: Identification of gamete defects by investigation of sperm-zona pellucida binding capacity of unfertilized oocytes
The objective of the study was to determine whether fertilization failure was due to spermatozoal or oocyte factors. Twenty-five unfertilized oocytes and from 12 IVF/GIFT couples showing total or partial fertilization ...
Sequence variation and subtyping of human and simian T-cell lymphotropic virus type I strains from South Africa
We report on the subtyping of South African primate T-cell lymphotropic virus type I (PTLV-I) strains by investigating the LTR region using sequence analysis and restriction fragment length polymorphism (RFLP) techniques. ...
Dynamics of respiratory gas exchange during exercise after correction of congenital heart disease
In pediatric exercise testing, conventional measures of aerobic exercise function such as maximal O2 uptake or the ventilatory anaerobic threshold (VAT) use only one value for the assessment of exercise capacity. We studied ...
Defining bioassay conditions to evaluate sperm/zona interaction: Inhibition of zona binding mediated by solubilized human zona pellucida
Objective: Our goal was to study the influence of solubilized human zonae pellucidae on zona binding potential and acrosome reaction. Materials and Methods: Zona pellucida (ZP) solutions were prepared by dissolving zona ...
Fertilization and pregnancy using metaphase I oocytes in an intracytoplasmic sperm injection program
Purpose: In this study we investigated whether metaphase I oocytes collected in an intracytoplasmic sperm injection program could successfully be matured and fertilized by injecting aged (>20-hr) spermatozoa. Materials and ...
Age, weight, body mass index and endometrial thickness in postmenopausal women
[No abstract available]
A comparative analysis of embryo implantation potential in patients with severe teratozoospermia undergoing in-vitro fertilization with a high insemination concentration or intracytoplasmic sperm injection
The objective of this study was to assess fertilization, implantation and pregnancy rates in infertile patients with severe teratozoospermia [P (poor prognosis) pattern sperm morphology assessed by strict criteria] treated ...
Bowel herniation through the torn diaphragm: II. Intestinal herniation
Five cases of intestinal herniation through the torn diaphragm are presented. Plain radiography, single contrast examination, and ultrasonography show some simple features that either have not been previously published or ...
Raised ICP in a child with cryptococcal meningitis: CT evidence of a distal CSF block
Raised intracranial pressure (ICP) often complicates the course of cryptococcal meningitis. The pathogenesis of the severely raised cerebrospinal fluid (CSF) pressure commonly associated with this condition is largely ...
Congenially absent pulmonary veins -diagnostic pitfalls two case reports
Two patients with partial absence of the right and left pulmonary veins respectively are described. Congenitally absent pulmonary veins are a rare phenomenon and the diagnosis is often missed or delayed. When children ...