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    Genetic analysis of mitochondrial DNA variants in the population of Pakistan
    (Nature Publishing Group, 2018) Bhatti, S.; Khan, M. A.; Abbas, S.; Attimonelli, M.; Aydin, H. Hakan
    [No Abstract Available]
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    Melatonin levels and microRNA (miRNA) relative expression profile in the follicular ambient microenvironment in patients undergoing in vitro fertilization process
    (Springer, 2020) Khan, H.L.; Bhatti, S.; Abbas, S.; Kaloglu, C.; Qurat-ul-Ain Zahra, S.; Khan, Y.L.; Aydin, H.H.
    Purpose: Intrafollicular fluid (IFF) melatonin plays a decisive role in maintaining granulosa cells’ DNA integrity and protects them against apoptosis. It reduces oxidative stress and improves the oocyte quality with a higher fertilization rate. Method: This prospective study investigated the antioxidant property of IFF melatonin and its impact on IVF outcome parameters. We also explored the relative expression of five microRNAs (miR-663b, miR-320a, miR-766-3p, miR-132-3p, miR-16-5p) and levels of cell-free DNA (cfDNA) by real-time PCR in unexplained infertile patients. We collected 425 follicular fluid (FF) samples containing mature oocytes from 295 patients undergoing IVF. Results: Patients were subgrouped based on IFF melatonin concentration (group A ? 30 pg/mL, group B > 70 to ? 110 pg/mL, group C > 111 to ? 385 pg/mL). Our results showed that patients with ? 30 pg/mL IFF melatonin levels have significantly higher oxidative stress markers, cfDNA levels, and lower relative expression of miR-663b, miR-320a, miR-766-3p, miR-132-3p, and miR-16-5p compared to other subgroups (p < 0.001). Similarly, they have a low fertilization rate and a reduced number of high-quality day 3 embryos. Conclusion: Findings suggest that the therapeutic use of melatonin produces a considerable rise in the number of mature oocytes retrieved, fertilization rate, and good-quality embryo selection. Furthermore, miRNA signature enhances the quality of embryo selection, thus, may allow us to classify them as non-invasive biomarkers to identify good-quality embryos. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
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    Serotonin transporter (5-HTTLPR) genotypes and trinucleotide repeats of androgen receptor exert a combinatorial effect on hormonal milieu in patients with lifelong premature ejaculation
    (Wiley, 2018) Khan, H. L.; Bhatti, S.; Abbas, S.; Khan, Y. L.; Gonzalez, R. M. M.; Aslamkhan, M.; Gonzalez, G. R.; Aydin, H. H.
    Premature ejaculation is one of the most common sexual disorders in men due to uncontrolled modulation of spinal reflexes controlled by cortico-limbic centers in the brain. In this study, we investigate the combinatorial effects of trinucleotide repeats of androgen receptor and allelic variants of the 5-HTTLPR gene on sex steroids, hypophyseal hormones, sexual performance, and premature ejaculation assessment parameters among evidence-based lifelong premature ejaculation subjects. A total of 271 outpatients (age 26.6 +/- 1.9) consulting for evidence-based lifelong premature ejaculatory dysfunction were selected in this study. The control group consists of 155 men with normal IELT (>4 min). The study revealed that the subjects who have the highest (>= 26) CAG stretches depicted a significantly higher serum oxytocin levels (102.1 pg/ml; n = 126, p < 0.001) compared with the control group (71.2 pg/ml; n = 75, p = <0.001) and patients which have medium (22-25) and short (<= 21) CAG stretches (76.63 ng/ml; n = 64, p n = 81, p < 0.001). Almost 33 (26.1%) lifelong premature ejaculatory patients had AR variant of longer (>= 26) CAG repeats was homozygous for S alleles (SS), 45 (35.7%) was homozygous for L allele (LL), and 48 (38%) had the L/S or S/L genotype of 5-HTTLPR gene. Homozygous (SS) alleles have a significant positive correlation (r = 0.44, p < 0.0001) with the high score of BDI-II (39.1, n = 126, p < 0.001). However, LL alleles have shown a significant positive correlation with PEDT (r = 0.46, p < 0.001) and negative correlation with self-estimated IELT and intercourse satisfaction (r = -0.35, p < 0.001). The innovative study design elaborates that androgen receptor trinucleotide repeats and 5-HTTLPR genotypes have combinatorial impact on hormonal milieu and sexual function regarding evidence-based lifelong premature ejaculatory dysfunction patients.