A condition characterized by the complete absence of SEMEN. This disorder should be differentiated from AZOOSPERMIA, absence of sperm in the semen.
2 compound(s) have been researched along with Aspermia
| Compound | Studies (this condition) | Studies (all conditions) | Specificity |
|---|---|---|---|
| guanethidine | 1 | 3803 | 0.0003 |
| thioridazine | 1 | 2501 | 0.0004 |
10 drug roles or functions have been studied along with Aspermia
| Drug Role | Role Definition | Studies |
|---|---|---|
| adrenergic antagonist | An agent that binds to but does not activate adrenergic receptors thereby blocking the actions of endogenous or exogenous adrenergic agonists. | 1 |
| alpha-adrenergic antagonist | An agent that binds to but does not activate alpha-adrenergic receptors thereby blocking the actions of endogenous or exogenous alpha-adrenergic agonists. alpha-Adrenergic antagonists are used in the treatment of hypertension, vasospasm, peripheral vascular disease, shock, and pheochromocytoma. | 1 |
| antihypertensive agent | Any drug used in the treatment of acute or chronic vascular hypertension regardless of pharmacological mechanism. | 1 |
| dopaminergic antagonist | A drug that binds to but does not activate dopamine receptors, thereby blocking the actions of dopamine or exogenous agonists. | 1 |
| EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor | An EC 1.8.1.* (oxidoreductase acting on sulfur group of donors, NAD+ or NADP+ as acceptor) inhibitor that interferes with the action of trypanothione-disulfide reductase (EC 1.8.1.12). | 1 |
| EC 3.4.21.26 (prolyl oligopeptidase) inhibitor | Any EC 3.4.21.* (serine endopeptidase) inhibitor that interferes with the action of prolyl oligopeptidase (EC 3.4.21.26). | 1 |
| first generation antipsychotic | Antipsychotic drugs which can have different modes of action but which tend to be more likely than second generation antipsychotics to cause extrapyramidal motor control disabilities such as body rigidity or Parkinson's disease-type movements; such body movements can become permanent even after treatment has ceased. | 1 |
| H1-receptor antagonist | H1-receptor antagonists are the drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. | 1 |
| serotonergic antagonist | Drugs that bind to but do not activate serotonin receptors, thereby blocking the actions of serotonin or serotonergic agonists. | 1 |
| sympatholytic agent | Any compound which inhibits the postganglionic functioning of the sympathetic nervous system (SNS). | 1 |
0 protein target(s) studied along with Aspermia
| Article |
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Primary infertility secondary to a hidden posterior urethral valve representing a diagnostic challenge in the fifth decade.
Posterior urethral valves (PUVs) are frequently recognized during the perinatal period. Delayed diagnosis is reported usually within the first decade of life with diverse clinical presentations. In the current case report, we describe a 45 years old man patient who presented with aspermia and primary infertility for 8 years in whom his diagnostic workup revealed radiological imaging suggestive of PUVs. This phenomenon was confirmed by cystourethroscopy that showed obstructive valve. Endoscopic ablation resulted in significant improvement of his seminal parameter with successful conception. |
Targeted knock-in mice with a human mutation in GRTH/DDX25 reveals the essential role of phosphorylated GRTH in spermatid development during spermatogenesis.
Gonadotropin-regulated testicular RNA helicase (GRTH/DDX25) is a testis specific member of the DEAD-box family of RNA helicases expressed in meiotic and haploid germ cells which plays an essential role in spermatogenesis. There are two species of GRTH the 56 kDa non-phospho and 61 kDa phospho forms. Our early studies revealed a missense mutation (R242H) of GRTH in azoospermic men that when expressed in COS1-cells lack the phospho-form of GRTH. To investigate the role of the phospho-GRTH species in spermatogenesis, we generated a GRTH knock-in (KI) transgenic mice with the R242H mutation. GRTH-KI mice are sterile with reduced testis size, lack sperm with spermatogenic arrest at round spermatid stage and loss of the cytoplasmic phospho-GRTH species. Electron microscopy studies revealed reduction in the size of chromatoid bodies (CB) of round spermatids (RS) and germ cell apoptosis. We observed absence of phospho-GRTH in the CB of RS. Complete loss of chromatin remodeling and related proteins such as TP2, PRM2, TSSK6 and marked reduction of their respective mRNAs and half-lives were observed in GRTH-KI mice. We showed that phospho-GRTH has a role in TP2 translation and revealed its occurrence in a 3' UTR dependent manner. These findings demonstrate the relevance of phospho-GRTH in the structure of the chromatoid body, spermatid development and completion of spermatogenesis and provide an avenue for the development of a male contraceptive. |
Idiopathic pan genital tract calcification: A rare cause of aspermia & infertility.
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Risk of diabetes according to male factor infertility: a register-based cohort study.
Is male factor infertility associated with an increased risk of developing diabetes?. The study provides evidence that male factor infertility may predict later occurrence of diabetes mellitus with the risk being related to the severity of the underlying fertility problem.. Previous cross-sectional studies have shown an increased prevalence of comorbidities among infertile men when compared to controls.. In this prospective cohort study, 39 516 men who had since 1994 undergone fertility treatment with their female partner were identified from the Danish national IVF register, which includes data on assumed cause of couple infertility (male/female factor, mixed and unexplained infertility) and type of fertility treatment. With a median follow-up time of 5.6 years, each man was followed for diabetes occurrence from enrollment until 31 December 2012 using the National Diabetes Register (NDR). Men with a history of diabetes prior to their fertility diagnosis were excluded. Hazard ratios (HR) were estimated by Cox proportional hazard models with age as the underlying time scale. In addition to analyzing the data for the entire IVF registration period (1994-2012), separate analyses were performed for men identified from the first (1994-2005) and second (2006-2012) IVF registration period owing to heterogeneity in the reporting of male factor infertility in these two time periods, because the reason for male factor infertility was not available from the first register.. Male factor infertility was identified from the variable 'yes' or 'no' from the first IVF register and through a diagnosis code (e.g. oligospermia, azoospermia) from the second IVF register. The reference group was men with male factor infertility (='no') and those with normal semen quality or sterilized men. Of the included men, 18 499 (46.8%) had male factor infertility and 21 017 (53.2%) made up the reference group.. A total of 651 (1.6%) diabetes cases were identified during the follow-up period. The adjusted HR's for diabetes risk among men with male factor infertility when compared to the reference group were HR = 1.08 (95% CI: 0.89, 1.31) and HR = 1.45 (95% CI: 1.06, 1.97) for the first and second IVF registration period, respectively. When assessing the effects of individual causes of male factor infertility, the adjusted HR's for men with oligospermia, azoospermia and aspermia were HR = 1.44 (95% CI: 1.01, 2.06), HR = 2.10 (95% 1.25, 3.56) and HR = 3.20 (95% CI 1.00, 10.31), respectively.. We found no increased risk among men identified from the first IVF register, which may be related to exposure misclassification as the reason for male factor infertility was not available from this time period. The NDR does not distinguish between type 1 and type 2 diabetes.. These findings support previous studies that a man's reproductive and somatic health are closely intertwined and highlight the importance for further monitoring of these men. Further, implementation of diabetes screening may be especially relevant among aspermic and azoospermic men.. This article is part of the ReproUnion collaborative study, co-financed by the European Union, Intereg V Öresund-Kattegat-Skagerrak. None of the authors declare any conflict of interest.. None. |
Association of single nucleotide polymorphisms in UBR2 gene with idiopathic aspermia or oligospermia in Sichuan, China.
The associations between three single nucleotide polymorphisms (SNPs; rs3749897, rs16895863 and rs373341) of UBR2 gene and idiopathic aspermia or oligospermia were investigated in this study by a case-control experiment with 149 fertile and 316 infertile men, including 244 patients with idiopathic aspermia and 72 patients with severe oligospermia. The time-of-flight mass spectrometry (Sequenom MassARRAY |
Re: Pregnancy outcome according to male diagnosis after ICSI with non-ejaculated sperm compared with ejaculated sperm controls.
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Re: Pregnancy outcome according to male diagnosis after ICSI with non-ejaculated sperm compared with ejaculated sperm controls.
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Management of the dry ejaculate: a systematic review of aspermia and retrograde ejaculation.
A dry ejaculate (aspermia), may occur either because of an inability to transport semen (anejaculation) or because of an inability to ejaculate in an antegrade direction (retrograde ejaculation). The treatment of aspermia varies with underlying etiology and includes medical therapy with sympathomimetics, urinary sperm retrieval, bladder neck reconstruction, prostatic massage, penile vibratory stimulation, electroejaculation, and surgical sperm retrieval. A systematic review of the current literature was performed for articles on ejaculatory dysfunction related to dry ejaculate. However, the data are insufficient to allow firm comparisons between treatment options. Treatments must be tailored to the individual patient, and treatment decisions should involve consideration of ease of administration, degree of invasiveness, and anticipated success. |
Pregnancy outcome according to male diagnosis after ICSI with non-ejaculated sperm compared with ejaculated sperm controls.
The aim of this study was to describe pregnancy outcome in couples who had undergone ICSI using non-ejaculated sperm from men with non-obstructive azoospermia, obstructive azoospermia and aspermia compared with the outcome of ICSI with ejaculated sperm from men with severe oligozoospermia, treated during the same time period. This nationwide cohort study included all children born after ICSI with non-ejaculated sperm in Norway, from when the method was first permitted in Norway in April 2004 to the end of 2010, resulting in 420 pregnancies and a total of 359 children. In 235 of these children, the father was diagnosed with obstructive azoospermia, in 72 with non-obstructive azoospermia, in 31 with aspermia, and in 21 the male cause was unclassifiable. The control group consisted of 760 children from 939 pregnancies conceived by ICSI with ejaculated sperm. Sex ratio, birth weight, rate of pregnancy loss and congenital malformations were not significantly associated with sperm origin or the cause of male factor infertility. |
Molecular analysis of aspermic Fasciola flukes from Korea on the basis of the nuclear ITS1 region and mitochondrial DNA markers and comparison with Japanese aspermic Fasciola flukes.
It has been speculated that populations of aspermic Fasciola flukes in Korea and Japan have a close phylogenetic relationship. To evaluate this, we analyzed 33 Korean aspermic Fasciola flukes on the basis of nuclear ribosomal internal transcribed spacer 1 (ITS1) and mitochondrial NADH dehydrogenase subunit 1 (nad1) and cytochrome c oxidase 1 (cox1) sequences. Fh, Fg, and Fh/Fg types were detected in the ITS1 region and displayed the fragment patterns of F. hepatica, F. gigantica, and both species, respectively by a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Additionally, three concatenated haplotypes of nad1 and cox1(nad1/cox1) were detected, and 2 of these, Kor1/Kor1 (Fsp1/Fsp1) haplotype and Kor2a/Kor2 (Fsp2/Fsp2) haplotype, were shared by Korean and Japanese aspermic flukes. The Fst value (0.019), calculated using the concatenated sequences, indicated that Korean and Japanese aspermic Fasciola populations were genetically undifferentiated. Interestingly, a combination of the Fh/Fg type and Kor1/Kor1 haplotype was found at the highest frequency in Korean aspermic flukes, whereas the Fg type and Fsp2/Fsp2 haplotype combination was found at a conspicuously high frequency in Japanese aspermic flukes. This indicates that a founder effect caused by the introduction of infected hosts may have played a key role in the introduction of aspermic Fasciola flukes from Korea into Japan. |