scholarly journals Construction and Analysis of the Cell Surface’s Protein Network for Human Sperm-Egg Interaction

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Soudabeh Sabetian Fard Jahromi ◽  
Mohd Shahir Shamsir
Keyword(s):  
Interaction Analysis ◽  
Interaction Network ◽  
Human Sperm ◽  
Cellular Membrane ◽  
Surface Proteins ◽  
Receptor Protein ◽  
Protein Signaling ◽  
Vitro Fertilization ◽  
Biological Interpretation

Sperm-egg interaction is one of the most impressive processes in sexual reproduction, and understanding the molecular mechanism is crucial in solving problems in infertility and failed in vitro fertilization. The main purpose of this study is to map the sperm-egg interaction network between cell-surface proteins and perform an interaction analysis on this new network. We built the first protein interaction network of human sperm-egg binding and fusion proteins that consists of 84 protein nodes and 112 interactions. The gene ontology analysis identified a number of functional clusters that may be involved in the sperm-egg interaction. These include G-protein coupled receptor protein signaling pathway, cellular membrane fusion, and single fertilization. The PPI network showed a highly interconnected network and identified a set of candidate proteins: ADAM-ZP3, ZP3-CLGN, IZUMO1-CD9, and ADAM2-IZUMO1 that may have an important role in sperm-egg interaction. The result showed that the ADAM2 may mediate interaction between two essential factors CD9 and IZUMO1. The KEGG analysis showed 12 statistically significant pathways with 10 proteins associated with cancer, suggesting a common pathway between tumor fusion and sperm-egg fusion. We believe that the availability of this map will assist future researches in the fertilization mechanism and will also facilitate biological interpretation of sperm-egg interaction.

Quality control in an in-vitro fertilization laboratory: use of human sperm survival studies

1989 ◽  
Vol 4 (5) ◽  
pp. 545-549 ◽  
Author(s):  
J. Diane Critchlow ◽  
Phillip L. Matson ◽  
C. Newman Maureen ◽  
Gregory Horne ◽  
Stephen A. Troup ◽  
...  
Keyword(s):  
Quality Control ◽  
In Vitro Fertilization ◽  
Human Sperm ◽  
Vitro Fertilization ◽  
Sperm Survival ◽  
Survival Studies

Prematurely condensed human sperm chromosomes after in vitro fertilization (IVF)

1986 ◽  
Vol 74 (4) ◽  
pp. 441-443 ◽  
Author(s):  
H. Schmiady ◽  
K. Sperling ◽  
H. Kentenich ◽  
M. Stauber
Keyword(s):  
In Vitro Fertilization ◽  
Human Sperm ◽  
Vitro Fertilization ◽  
Sperm Chromosomes ◽  
Human Sperm Chromosomes

Development and implementation of intracytoplasmic sperm injection (ICSI)

1995 ◽  
Vol 7 (2) ◽  
pp. 211 ◽  
Author(s):  
GD Palermo ◽  
J Cohen ◽  
M Alikani ◽  
A Adler ◽  
Z Rosenwaks
Keyword(s):  
Intracytoplasmic Sperm Injection ◽  
Human Sperm ◽  
Fertilization Rate ◽  
Semen Parameters ◽  
Ongoing Pregnancy Rate ◽  
Vitro Fertilization ◽  
Human Oocytes ◽  
Intracytoplasmic Injection ◽  
Previously Treated

The purpose of this paper is to elucidate the experimental steps that led to the development of intracytoplasmic sperm injection (ICSI) and its application in the human. ICSI has become the most successful micromanipulation procedure for treating male infertility. A total of 355 in vitro fertilization (IVF) cycles utilizing ICSI are described; 180 couples were previously treated in 509 IVF cycles but achieved no fertilization and 175 couples could not be treated by IVF because of extremely poor semen parameters. Of the 3063 metaphase II (M II) oocytes retrieved, 2970 were injected with a survival rate of 93.6%, yielding 1917 bipronuclear zygotes (64.5%). In 148 patients, a foetal heart was evidenced by ultrasound; 11 of these patients miscarried between 7 and 13 weeks of gestation. The ongoing pregnancy rate was 38.6% (137/355) per retrieval and 40.5% (137/338) per embryo replacement. At the time of writing, there were 22 deliveries and one therapeutic abortion for a trisomy 21 chromosomal abnormality. In addition, 66 singleton, 37 twin, 10 triplet and 1 quadruplet pregnancies were ongoing. The concentration of motile spermatozoa in the ejaculate only slightly influenced the fertilization rate (P < 0.001) and the pregnancy outcome (P < 0.01). A preliminary injection procedure utilizing intracytoplasmic injection of isolated sperm heads was performed in 35 M II human oocytes with resultant fertilization and cleavage rates of 74% and 73% respectively. Skills in ICSI were acquired by injecting hamster and unfertilized human oocytes with human sperm. ICSI can be used to successfully treat couples who have failed IVF or who have too few spermatozoa for conventional in vitro insemination.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Assisted Reproductive Technology

2014 ◽  
Vol 4 (1) ◽  
pp. 1-10 ◽  
Author(s):  
JP Deep
Keyword(s):  
Assisted Reproductive Technology ◽  
Human Sperm ◽  
Reproductive Technology ◽  
Human Reproduction ◽  
Unprotected Sexual Intercourse ◽  
Vitro Fertilization ◽  
Medical College ◽  
The United Kingdom ◽  
One Year

All the treatment or procedure that includes the handling of both human sperm and oocytes or embryos in vitro for the purpose of establishing a pregnancy in order to bypass some pathological obstacles in human reproduction is known as Assisted Reproductive Technology (ART). Now we must be approaching 1.5 million Assisted Reproductive Technology birth since the birth of the world’s first in vitro fertilization baby, Louise Brown, in the United Kingdom. The infertility is caused by various reason and factors from either or both partners. Infertility affects worldwide by 8-15 percent of couples in general and defined as a disease of the reproductive system by the failure to achieve a clinical pregnancy after one year or more of regular unprotected sexual intercourse. DOI: http://dx.doi.org/10.3126/jcmc.v4i1.10840 Journal of Chitwan Medical College 2014; 4(1): 1-10

Dynamics of human sperm acrosome reaction: relation with in vitro fertilization

1991 ◽  
Vol 55 (5) ◽  
pp. 994-999 ◽  
Author(s):  
Patrick Fénichel ◽  
Michèle Donzeau ◽  
Dariush Farahifar ◽  
Bernard Basteris ◽  
Noël Ayraud ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Acrosome Reaction ◽  
Human Sperm ◽  
Vitro Fertilization ◽  
Sperm Acrosome Reaction ◽  
Sperm Acrosome

Evaluation of morphological criteria of sperm quality before in vitro fertilization and intracytoplasmic sperm injection

2013 ◽  
Vol 16 (4) ◽  
pp. 773-785 ◽  
Author(s):  
K. Lasiene ◽  
V. Gedrimas ◽  
A. Vitkus ◽  
S. Glinskyte ◽  
V. Lasys ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Intracytoplasmic Sperm Injection ◽  
Sperm Quality ◽  
Human Sperm ◽  
Developmental Competence ◽  
Vitro Fertilization ◽  
Abnormal Sperm ◽  
Morphological Criteria ◽  
Negative Effect

Abstract The quality of sperm has a direct influence on the fertilization and developmental competence of embryos. In the literature we did not find defined criteria for evaluation of normal sperm parameters in various species of domestic mammals. Therefore we attempted to review evaluation of criteria of morphologically normal human sperm and their abnormalities. All sperm cells observed in the stained sample are classified as normal or abnormal. Any abnormalities in morphology of sperm have a negative effect on the outcome in in vitro fertilization and intracytoplasmic sperm injection. Abnormal sperm are categorized into subgroups according to the observed defects (concerning the head and/or midpiece and/or tail). Most morphologically abnormal sperm have multiple defects. This article can be considered as guideline for the manual of sperm quality evaluation in different species of domestic mammals.

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