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oligozoospermia

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https://www.readbyqxmd.com/read/29730678/reliability-of-testicular-stiffness-quantification-using-shear-wave-elastography-in-predicting-male-fertility-a-preliminary-prospective-study
#1
Alpaslan Yavuz, Adem Yokus, Kerem Taken, Abdussamet Batur, Mesut Ozgokce, Harun Arslan
AIMS: To evaluate the reliability of testicular stiffness quantification using shear wave elastography in predicting the fertility potential of males and for the pre-diagnosis of disorders based upon sperm quantification. MATERIAL AND METHODS: One hundred males between the ages of 19-49 years (mean age of 28.77±6.11), ninety of whom with complaints of infertility, were enrolled in this prospective study. Scrotal grey-scale, Doppler ultrasound (US), and mean testicular shear wave velocity quantifications (SWVQs) were performed...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29722946/-correlation-of-serum-anti-m%C3%A3-llerian-hormone-with-semen-parameters
#2
Long-Ping Peng, Yong Shao, Cen-Cen Wang, Zhi-Chuan Zou, Tao Shen, Li Chen, Bing Yao
Objective: To investigate the relationship between the serum anti-Müllerian hormone (AMH) level and semen parameters. METHODS: We collected the data about 726 outpatients at the Male Infertility Clinic of Jinling Hospital from September 2015 to November 2016, including 72 with non-obstructive azoospermia, 123 with oligospermia, and 531 with normal sperm concentration. We obtained the semen volume, total sperm count, sperm concentration, sperm motility, the percentages of progressively motile sperm (PMS) and morphologically normal sperm (MNS), and the levels of serum AMH, inhibin B (INH-B), total testosterone (TT) and follicle - stimulating hormone (FSH) of the patients, analyzed the correlation of the serum AMH level with the other parameters, and compared the AMH level among different groups...
June 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29714436/analysis-of-partial-azfc-gr-gr-b1-b3-and-b2-b3-deletions-in-iranian-oligozoospermia-candidates-for-intracytoplasmic-sperm-injection-icsi
#3
Mitra Ataei, Fatemeh Akbarian, Mahba Ataei Talebi, Peyman Dolati, Maryam Mobaraki, Abolfazl Faraji, Massoud Houshmand
Background/aim: Infertility is a main health issue. The human Y chromosome contains essential genes for spermatogenesis, especially those located on four major intervals defined as AZFa, AZFb, AZFc, and AZFd. A partial deletion of the AZFc region is reported as a significant risk factor for oligo-/azoospermia. The main purpose of this study was to investigate the prevalence of partial deletions in the AZFc region (gr/gr, b1/b3, and b2/b3) in Iranian oligozoospermic candidates for intracytoplasmic sperm injection...
April 30, 2018: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29713544/chromosomal-abnormalities-in-infertile-men-with-azoospermia-and-severe-oligozoospermia-in-qatar-and-their-association-with-sperm-retrieval-intracytoplasmic-sperm-injection-outcomes
#4
Mohamed M Arafa, Ahmad Majzoub, Sami S AlSaid, Walid ElAnsari, Abdulla Al Ansari, Yara Elbardisi, Haitham T Elbardisi
Objective: To study the types and incidence of chromosomal abnormalities in infertile men with azoospermia and severe oligozoospermia in Qatar, and to compare the hormonal changes, testicular sperm retrieval rate, and intracytoplasmic sperm injection (ICSI) outcome between patients with chromosomal abnormalities and patients with idiopathic infertility. Patients and methods: This study involved the retrospective chart review of 625 infertile male patients attending an academic tertiary medical centre in Qatar...
March 2018: Arab Journal of Urology
https://www.readbyqxmd.com/read/29707937/detection-of-y-chromosome-microdeletions-and-hormonal-profile-analysis-of-infertile-men-undergoing-assisted-reproductive-technologies
#5
Ardeshir Bahmanimehr, Shahryar Zeighami, Bahia Namavar Jahromi, Zahra Anvar, Mohammad Ebrahim Parsanezhad, Maryam Davari, Somayeh Montazeri
Background: Y chromosome deletions (YCDs) in azoospermia factor (AZF) region are associated with abnormal spermatogenesis and may lead to azoospermia or severe oligozoospermia. Assisted reproductive technologies (ART) by intracytoplasmic sperm injection (ICSI) and testicular sperm extraction (TESE) are commonly required for infertility management of patients carrying YCDs. The aim of this study was to estimate the frequency of YCDs, to find the most frequent variant in infertile men candidate for ART and to compare YCD distribution with a control fertile group...
July 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29684482/two-cases-of-complex-balanced-autosomal-translocations-associated-with-severe-oligozoospermia
#6
Yan-Wei Sha, Li-Bin Mei, Zhi-Yong Ji, Lu Ding, Yunsheng Ge, Qiong Wu, Hui Kong, Zhi-Ying Su, Ping Li
Complex balanced autosomal translocation is rare and can lead to impaired spermatogenesis in males; however, its effects on oligozoospermia have rarely been reported. We report here two cases of rare complex balanced translocation in men with infertility. The karyotype of the first case was 46,XY,der(1)t(1;12)(p22;p11.2)ins(9;1)(p24;q25q23),der(9)ins(9;1),der(12)t(1;12)·ish der(1)t(1;12)(RP11-636B1+;RP11-659D23+)ins(9;1)(RP11-118P13+),der(9)ins(9;1),der(12)t(1;12). And the patient showed severe oligozoospermia with adult schizophrenia without other abnormalities...
April 20, 2018: Gene
https://www.readbyqxmd.com/read/29540081/testing-for-genetic-contributions-to-infertility-potential-clinical-impact
#7
Csilla Krausz, Francesca Cioppi, Antoni Riera-Escamilla
Male infertility affects about 7% of the general male population, and it is a multifactorial, polygenic pathological condition. Known genetic factors, accounting for about 20-25% of male factor infertility, are present in each etiological category: i) hypothalamic-pituitary axis dysfunction; ii) quantitative and qualitative alterations of spermatogenesis; iii) ductal obstruction/dysfunction. Areas covered: All routinely available genetic tests are described. Indication for testing for chromosomal anomalies and Y chromosome microdeletions is based on sperm count (severe oligozoospermia/azoospermia)...
April 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29538680/spontaneous-fertility-in-a-male-patient-with-testotoxicosis-despite-suppression-of-fsh-levels
#8
M Cunha-Silva, V N Brito, D B Macedo, D S Bessa, C O Ramos, L G Lima, P S Barroso, I J P Arnhold, D L Segaloff, B B Mendonca, A C Latronico
Testotoxicosis is a rare cause of peripheral precocious puberty in boys caused by constitutively activating mutations of the LHCG receptor. Affected males usually have normal gonadotropin profiles and fertility in their adult life. Here, we described the long-term follow-up of a 24-year-old young man with severe testotoxicosis due to a de novo activating mutation in the third transmembrane helix of the LHCGR (p.Leu457Arg). This patient was treated with different medications, including medroxyprogesterone acetate, ketoconazole, cyproterone acetate and aromatase inhibitor from age 2...
May 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29509528/pre-screening-method-for-somatic-cell-contamination-in-human-sperm-epigenetic-studies
#9
Timothy G Jenkins, Lihua Liu, Kenneth I Aston, Douglas T Carrell
Sperm epigenetic profiles are frequently studied and are of great interest in many fields. One major technical concern when assessing these marks is the potential for somatic cell contamination. Because somatic cells have dramatically different epigenetic signatures, even small levels of contamination can result in significant problems in analysis and interpretation of data. In this study we evaluate an assay, which we designed to offer a reliable 'pre-screen' for somatic cell contamination that directly assesses the DNA being used in the study to determine tissue purity...
April 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29492471/ion-channel-gene-expressions-in-infertile-men-a-case-control-study
#10
Serkan Carkci, Ebru Onalan Etem, Seda Ozaydin, Ahmet Karakeci, Ahmet Tektemur, Tunc Ozan, Irfan Orhan
Background: Infertility is described as not receiving pregnancy despite unprotected and regular sexual intercourse in a 1 yr period. It is detected by 15% of the couples. Male and female factor in the etiology may be detected in similar rates. Objective: The present study aims to investigate ion channel gene expression in semen samples of infertile male compared with fertile men. Materials and Methods: A total of 150 men who applied to the urology clinic due to infertility were divided into five equal groups: asthenozoospermia, oligozoospermia, oligoasthenoteratozoospermia, teratozoospermia, and normozoospermia (control)...
December 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29430151/azoospermia-factor-c-subregion-of-the-y-chromosome
#11
REVIEW
Mili Nailwal, Jenabhai B Chauhan
The azoospermia factor (AZF) region on the Y chromosome consists of genes required for spermatogenesis. Among the three subregions, the AZFc subregion located at the distal portion of AZF is the driver for genetic variation in Y chromosome. The candidate gene of AZFc is known as deleted in azoospermia gene, which is studied with interest because it is involved in germ cell development and most frequently deleted genes leading to oligozoospermia and azoospermia. Recently, two partial deletions in AZFc gr/gr and b2/b3 are characterized at the molecular level which showed homologous recombination between amplicons, affecting spermatogenesis process...
October 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29393271/phenotypic-variation-in-46-xx-disorders-of-sex-development-due-to-the-nr5a1-p-r92w-variant-a-sibling-case-report-and-literature-review
#12
Kei Takasawa, Maki Igarashi, Makoto Ono, Akira Takemoto, Shuji Takada, Atsuyuki Yamataka, Tsutomu Ogata, Tomohiro Morio, Maki Fukami, Kenichi Kashimada
Recently, a heterozygous missense mutation in NR5A1, p.R92W, was identified as a cause of 46,XX testicular/ovo-testicular disorders of sexual development (DSD). We report a sibling pair with 46,XX DSD due to an NR5A1 mutation with distinct phenotypes, including external and internal genitalia and gonads, for whom different rearing sexes were selected. Thus, the phenotypes of p.R92W vary, even within a family. The father of the patients showed oligozoospermia with the p.R92W mutation, suggesting that in 46,XY individuals, the mutation would cause various gonadal phenotypes...
2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/29369195/the-effectiveness-of-korean-medicine-treatment-in-male-patients-with-infertility-a-study-protocol-for-a-prospective-observational-pilot-study
#13
Kwan-Ii Kim, Junyoung Jo
Male factor subfertility has increasingly been considered the cause of infertility in couples. Many men with male infertility have sperm problems such as oligozoospermia, asthenozoospermia, or teratozoospermia. Because abnormal semen parameters are idiopathic to some extent, no standard therapy has been established to date. Herbal medicine has been reported to have beneficial properties in the treatment of subfertility, especially in improving semen quality both in vivo and in human studies. Therefore, we intend to investigate the effectiveness and safety of treatment using Korean medicine (KM) for infertile male patients with poor semen quality...
January 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29282757/level-of-neutral-alpha-1-4-glucosidase-in-seminal-plasma-of-chinese-men
#14
Z Qiu, Q Chu, W Zhang, C Luo, S Quan
Neutral alpha-1,4-glucosidase (NAG) is a crucial biomarker for the function of epididymis and is reported to be associated with semen quality. However, the correlation between NAG and Chinese semen quality has never been reported. This study aimed to investigate the level of NAG in the seminal plasma of Chinese men. A total of 394 cases of seminal plasma samples from normal, subfertile and infertile men were enrolled in this study. Male subfertility was caused by teratozoospermia, asthenospermia, severe oligozoospermia, asthenoteratozoospermia, oligoasthenospermia and oligoasthenoteratozoospermia...
April 2018: Andrologia
https://www.readbyqxmd.com/read/29219278/clinical-features-of-carriers-of-reciprocal-chromosomal-translocations-involving-chromosome-2-report-of-nine-cases-and-review-of-the-literature
#15
Xinyue Zhang, Hongguo Zhang, Cong Hu, Ruixue Wang, Qi Xi, Ruizhi Liu
OBJECTIVE: To explore the clinical features of carriers of chromosome 2 translocations, enabling informed genetic counseling of these patients. MATERIALS AND METHODS: Eighty-two male carriers of a translocation who were infertile or receiving fertility counseling were recruited. Cytogenetic analyses were performed using G-banding. A search of PubMed was performed to determine whether the identified translocations on chromosome 2 are involved in male infertility...
December 11, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29082206/the-society-for-translational-medicine-clinical-practice-guidelines-for-sperm-dna-fragmentation-testing-in-male-infertility
#16
REVIEW
Ashok Agarwal, Chak-Lam Cho, Ahmad Majzoub, Sandro C Esteves
Sperm DNA fragmentation (SDF) testing has been emerging as a valuable tool for male fertility evaluation. While the essential role of sperm DNA integrity in human reproduction was extensively studied, the clinical indication of SDF testing is less clear. This clinical practice guideline provides recommendations of clinical utility of the test supported by evidence. It is intended to serve as a reference for fertility specialists in identifying the circumstances in which SDF testing should be of greatest clinical value...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29064078/defective-wnt3-expression-by-testicular-sertoli-cells-compromise-male-fertility
#17
Sayon Basu, Satya Pal Arya, Abul Usmani, Bhola Shankar Pradhan, Rajesh Kumar Sarkar, Nirmalya Ganguli, Mansi Shukla, Kamal Mandal, Surendra Singh, Kanchan Sarda, Subeer S Majumdar
Testicular Sertoli cells make a niche for the division and differentiation of germ cells. Sertoli cells respond to increased follicle-stimulating hormone (FSH) and testosterone (T) levels at the onset of puberty by producing paracrine factors which affect germ cells and trigger robust onset of spermatogenesis. Such paracrine support to germ cells is absent during infancy, despite Sertoli cells being exposed to high FSH and T within the infant testis. This situation is similar to certain cases of male idiopathic infertility where post-pubertal Sertoli cells fail to support germ cell division and differentiation in spite of endogenous or exogenous hormonal support...
February 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29063501/the-normality-of-sperm-in-an-infertile-man-with-ring-chromosome-15-a-case-report
#18
Kazuyo Nishikawa, Fumiaki Itoi, Miki Nagahara, Mami Jose, Ayumi Matsunaga, Jun Ueda, Takashi Iwamoto
PURPOSE: The purpose of this report is to analyze the chromosome status and fertilization capability of sperm obtained from an infertile male patient with ring chromosome 15. METHODS: This was a case report at a private in vitro fertilization clinic. A man diagnosed with severe oligozoospermia carrying ring chromosome 15. To evaluate the chromosome status and fertilization capability, sperm from a patient carrying ring chromosome 15 were injected into enucleated mouse oocytes...
February 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29062795/y-chromosome-microdeletions-in-infertile-men-with-non-obstructive-azoospermia-and-severe-oligozoospermia
#19
Shin Young Kim, Hyun Jin Kim, Bom Yi Lee, So Yeon Park, Hyo Serk Lee, Ju Tae Seo
BACKGROUND: The purpose of the study was to investigate the frequencies and types of Y chromosome microdeletions in infertile men and to analyze the relationship between the levels of reproductive hormones and Y microdeletions. METHODS: A total of 1,226 infertile men were screened for Y chromosome microdeletions using multiplex PCR assay. Karyotype analysis was performed on peripheral blood lymphocytes with standard G-banding. Serum reproductive hormone levels were measured...
July 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/29017965/a-novel-mutation-in-haus7-results-in-severe-oligozoospermia-in-two-brothers
#20
Lin Li, Yan-Wei Sha, Zhi-Ying Su, Li-Bin Mei, Zhi-Yong Ji, Qing Zhang, Shao-Bin Lin, Xu Wang, Ping-Ping Qiu, Ping Li, Chenghong Yin
Severe oligozoospermia (SO) is a common disease resulting in male infertility; however, its pathophysiology remains unclear. Here, we report two brothers with SO. Whole-exome sequencing (WES) identified a hemizygous variant in HAUS7 (c.G386T:p.G129V), an X-linked gene. HAUS7 has been reported to play a role in the meiotic maturation and chromosome alignment of germ cells. The two patients inherited this variant from their mother, and this variant was considered to be a highly pathogenic mutation by in silico analysis...
January 10, 2018: Gene
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