Prevalence of Y chromosome microdeletion in azoospermic infertile males of Iraqi population

Al-janabi, Anwar Madlool; Rahim, Ali Ibrahim; Faris, Shehab A; Al-Khafaji, Salih Mahdi; Jawad, Dhafer

doi:10.1007/s12041-020-1181-3

Cited by 10 publications

(19 citation statements)

References 23 publications

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“…However, the present microdeletion frequency is very close to a recent study among Iraqi infertile men where the Y chromosome microdeletions reached a frequency of 47.8% (43/90 infertile male patients) [ 32 ] and a previous one in the same population conducted in 2017 with a frequency of 65% (26/40) [ 33 ]. We found in the present study these microdeletions are more common in azoospermic than oligozoospermic and this in agreement with what was found in many reports [ 20 , 22 , 24 ].…”

Section: Discussionsupporting

confidence: 87%

“…In this study, we were able to identify deletions of the AZFa, AZFb, AZFc, and AZFd plus several combinations. Previous and recent studies reported a maximum of three region deletions [ 19 , 24 , 26 , 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…We were able in this study to add more information about the frequency of AZFd of 23.3% which is rarely analyzed in previous studies [ 38 , 39 ]. Other studies showed conflicting results [ 20 , 32 , 40 ].…”

Section: Discussionmentioning

confidence: 99%

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Detection of AZF microdeletions and reproductive hormonal profile analysis of infertile sudanese men pursuing assisted reproductive approaches

et al. 2021

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Background Male factor is the major contributor in roughly half of infertility cases. Genetic factors account for 10–15% of male infertility. Microdeletions of azoospermia factors (AZF) on the Yq region are the second most frequent spermatogenesis disorder among infertile men after Klinefelter syndrome. We detected in our previous study a frequency of 37.5% AZF microdeletions which investigated mainly the AZFb and AZFc. We attempted in this study for the first time to evaluate the frequencies of all AZF sub-regions microdeletions and to analyze reproductive hormonal profiles in idiopathic cases of azoospermic and oligozoospermic men from Sudan. Methods A group of 51 medically fit infertile men were subjected to semen analysis. Four couples have participated in this study as a control group. Semen analysis was performed according to WHO criteria by professionals at Elsir Abu-Elhassan Fertility Centre where samples have been collected. We detected 12 STSs markers of Y chromosome AZF microdeletions using a multiplex polymerase chain reaction. Analysis of reproductive hormone levels including Follicle Stimulating, Luteinizing, and Prolactin hormones was performed using ELISA. Comparisons between outcome groups were performed using Student’s t-test Chi-square test or Fisher’s exact test. Results AZF microdeletion was identified in 16 out of 25 Azoospermic and 14 out of 26 of the Oligozoospermic. Microdeletion in the AZFa region was the most frequent among the 30 patients (N = 11) followed by AZFc, AZFd (N = 4 for each) and AZFb (N = 3). Among the Oligozoospermic participants, the most frequent deletions detected were in the AZFa region (N = 10 out of 14) and was significantly associated with Oligozoospermic phenotype, Fisher's Exact Test (2-sided) p = 0.009. Among the Azoospermic patients, the deletion of the AZFc region was the most frequent (N = 9 out of 16) and was significantly associated with Azoospermia phenotype Fisher's Exact Test p = 0.026. There was a significant difference in Y chromosome microdeletion frequency between the two groups. The hormonal analysis showed that the mean levels of PRL, LH, and FSH in Azoospermic patients were slightly higher than those in oligozoospermic. A weak negative correlation between prolactin higher level and Azoospermic patients was detected. (AZFa r = 0.665 and 0.602, p = 0.000 and 0.0004, AZFb r = 0.636 and 0.409, p = 0.000 and 0.025, and AZFd r = 0.398 and 0.442, p = 0.029 and 0.015). The correlation was positive for AZFa and negative for AZFb and AZFd. Conclusions We concluded in this study that the incidences of microdeletions of the Y chromosome confined to AZF a, b, c and d regions is 58.8% in infertile subjects with 31.4% were Azoospermic and 27.5% were Oligozoospermic. This might provide a piece of evidence that these specified regions of the Y chromosome are essential for controlling spermatogenesis. These findings will be useful for genetic counseling within infertility clinics in Sudan and to adopt appropriate methods for assisted reproduction.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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Detection of AZF microdeletions and reproductive hormonal profile analysis of infertile sudanese men pursuing assisted reproductive approaches

et al. 2021

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“…In a recent study by Al‐Janabi et al 9 from Iraq, the most predominant deleted region was AZFb (33.3%), followed by AZFc region (23.0%), while no microdeletion was noticed in AZFa. In severe oligozoospermia and azoospermia men, the incidence of the microdeletions in AZFa, AZFb, and AZFc regions ranged from 1% to 50.0%.…”

Section: Introductionmentioning

confidence: 90%

“…In around 15.0% of couples who want to have a child, infertility is a public health concern; the male gender is present in approximately 50.0% of instances. 9 So far, few studies have been conducted on the prevalence of AZFa microdeletions in azoospermia and severe oligozoospermia infertile Iraqi patients. Hence, this study aimed to analyze the incidence of AZFa microdeletions in the Y chromosome in patients with azoospermia and severe oligozoospermia from Iraq.…”

Section: Introductionmentioning

confidence: 99%