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Your search keyword '"Konstantinos Zikopoulos"' showing total 3 results
Start Over Author "Konstantinos Zikopoulos" Publisher hindawi limited
3 results on '"Konstantinos Zikopoulos"'

1. Ascites in the Puerperium in the Context of a Woman with Turner Syndrome Who Conceived through Assisted Reproductive Technology

Author

Nikolaos Tsagkas, George Valasoulis, Konstantinos Zikopoulos, Calliope Zerzi, Ioannis Mitselos, Ioannis Koutoulakis, Nikolaos Tzampouras, and Theodor Stefos

Subjects
Gynecology and obstetrics, RG1-991
Abstract

The case is about a young female who delivered twins by caesarean section (CS). On the 4th postoperative day, she presented with ascites which was resistant to empirical antibiotic and diuretic treatment. The woman was affected by Turner syndrome (TS); she had a medical background of chronic use of hormonal medication since puberty and conceived through ART- (assisted reproduction techniques-) IVF-oocyte donation. It is important to exhibit high suspicion for clot formation in the hepatic vasculature during the puerperium, especially in the case of history of chronic hormone treatment. Ascites albumin gradient and Doppler values lead to the diagnosis of thrombosis and the administration of high doses of anticoagulants is considered to be fundamental.

Published
2015
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2. Dramatic reduction in sperm parameters following bariatric surgery: report of two cases

Author

Atsushi Takenaka, Leandros Lazaros, Ioannis Georgiou, Konstantinos Zikopoulos, E. Hatzi, Nikolaos Sofikitis, and Sofia Markoula

Subjects
Adult, Male, Infertility, medicine.medical_specialty, Reproductive Techniques, Assisted, Urology, medicine.medical_treatment, Bariatric Surgery, Context (language use), Fertilization in Vitro, Male infertility, Endocrinology, Pregnancy, medicine, Humans, Sperm Injections, Intracytoplasmic, Treatment Failure, Infertility, Male, Reduction (orthopedic surgery), Azoospermia, Sperm Count, business.industry, Public health, General Medicine, Middle Aged, medicine.disease, Sperm, Obesity, Obesity, Morbid, Surgery, Sperm Motility, Female, business
Abstract

Severe obesity constitutes the main public health crisis of the industrialised world. Bariatric surgery has been proposed as the most efficient treatment of obesity. In this study, we report the potential effects of bariatric surgery on semen parameters in male partners of couples undergoing assisted reproduction. These patients had been tested in the context of infertility treatment in two consecutive cycles before and after bariatric surgery. A marked reduction in sperm parameters was observed in a period of twelve to eighteen months after surgery. This unfavourable effect had also remarkable effects on the assisted reproduction outcome, necessitating the counselling of patients before bariatric surgery.

Published
2012

3. Evidence for association of sex hormone-binding globulin and androgen receptor genes with semen quality

Author

Nikolaos Sofikitis, Ioannis Georgiou, N. Xita, Leandros Lazaros, Apostolos Kaponis, and Konstantinos Zikopoulos

Subjects
Male, Polymerase Chain Reaction, Oligospermia/etiology/genetics/physiopathology, Endocrinology, Sex hormone-binding globulin, Trinucleotide Repeats, Polymorphism (computer science), Sex Hormone-Binding Globulin, reproductive and urinary physiology, Sperm motility, Sperm Count, biology, General Medicine, Middle Aged, Receptors, Androgen, Sperm Motility, Adult, endocrine system, medicine.medical_specialty, Genotype, Urology, Sex Hormone-Binding Globulin/*genetics/physiology, Semen, DNA/genetics, Receptors, Androgen/*genetics/physiology, Spermatogenesis/genetics/physiology, Andrology, Semen quality, Internal medicine, medicine, Humans, Spermatogenesis, Alleles, DNA Primers, DNA Primers/genetics, Polymorphism, Genetic, Base Sequence, urogenital system, DNA, Oligospermia, Sperm, Androgen receptor, Case-Control Studies, Semen/*cytology/*metabolism, Sperm Motility/genetics/physiology, biology.protein, Microsatellite Repeats
Abstract

The roles of androgen receptor AR(CAG)n gene polymorphisms and sex hormone-binding globulin SHBG(TAAAA)n gene polymorphisms on semen quality were studied. One hundred fourteen men were included in the study: 85 with normal sperm count and 29 oligospermic. The genotype analysis, on DNA extracted from spermatozoa, revealed five SHBG(TAAAA)n alleles with 6-10 repeats and 18 AR(CAG)n alleles with 12-32 repeats. The SHBG allelic distribution showed that in men with normal sperm count and motility, those with short SHBG alleles had higher sperm concentration than men with long SHBG alleles (P = 0.039). As concerns AR(CAG)n polymorphisms, men with short AR alleles had lower sperm motility compared to those with long AR alleles (P < 0.001) in both total study population and normal sperm count men. The synergistic effect analysis of the two polymorphisms revealed an association between sperm motility (P = 0.036), because of the effect of AR(CAG)n polymorphism on sperm motility. In conclusion, long AR alleles were found to be associated with higher sperm motility, while short SHBG alleles were associated with higher sperm concentration, supporting the significance of these genes in spermatogenesis and semen quality. Andrologia

Published
2008

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