Mendeluk Gabriela Ruth, Costa Sergio López, Scigliano Sergio, Menga Guillermo, Demiceu Sergio, Palaoro Luis Alberto
Laboratorio de Fertilidad Masculina, Area Citología. Departamento de Bioquímica Clínica, INFIBIOC, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
Allergy Rhinol (Providence). 2013 Spring;4(1):e1-5. doi: 10.2500/ar.2013.4.0038.
The study of nasal ciliary beat frequency (CBF) and ultrastructure may contribute to the understanding of pathognomonic cases of male infertility associated with defects in sperm motility. This study was designed to report a particular case of male infertility, characterized by the association of two respiratory autosomal recessive genetic diseases (alpha-1-antitrypsin deficiency [AAT-D] and primary ciliary dyskinesia [PCD]). A 39-year-old patient with complete sperm immotility, AAT-D, and bronchiectasis was studied in the Laboratory of Male Fertility, the Department of Urology, the Respiratory Center of a Pediatric Hospital, and in the Department of Clinical Medicine of a Rehabilitation Respiratory Hospital. Family history, physical examination, hormonal analysis, microbial assays, semen analysis, nasal ciliary function, and structure study by digital high-speed video photography and transmission electron microscopy are described. A noninvasive nasal biopsy to retrieve ciliated epithelium lining the inferior surface of the inferior nasal turbinates was performed and CBF was determined. Beat pattern was slightly curved and rigid, not wide, and metacronic in all the observed fields analyzed. CBF was 8.2 Hz in average (reference value, 10-15 Hz) Ultrastructural assay revealed absence of the inner dynein arms in 97% of the cilia observed. The final infertility accurate diagnosis was achieved by the study of nasal CBF and ultrastructure contributing to the patient health management and genetic counseling while deciding fatherhood. Beyond this particular case, the present report may open a new field of studies in male infertility, mainly in cases of asthenozoospermia.
对鼻纤毛摆动频率(CBF)和超微结构的研究可能有助于理解与精子活力缺陷相关的男性不育症的典型病例。本研究旨在报告一例特殊的男性不育病例,其特征是两种常染色体隐性遗传性呼吸疾病(α-1抗胰蛋白酶缺乏症[AAT-D]和原发性纤毛运动障碍[PCD])并存。一名39岁的患者,精子完全不动,患有AAT-D和支气管扩张症,在一家儿童医院的泌尿外科男性生育实验室、呼吸中心以及一家康复呼吸医院的临床医学科接受了研究。描述了家族史、体格检查、激素分析、微生物检测、精液分析、鼻纤毛功能以及通过数字高速视频摄影和透射电子显微镜进行的结构研究。进行了一项非侵入性鼻活检,以获取下鼻甲下表面的纤毛上皮,并测定了CBF。在所有观察到的分析视野中,纤毛的摆动模式略微弯曲且僵硬,幅度不大,呈同步摆动。CBF平均为8.2Hz(参考值为10-15Hz)。超微结构检测显示,在观察到的97%的纤毛中,内侧动力蛋白臂缺失。通过对鼻CBF和超微结构的研究,最终实现了对不育症的准确诊断,这有助于患者的健康管理和遗传咨询,同时决定是否生育。除了这个特殊病例外,本报告可能会在男性不育领域,主要是弱精子症病例中,开辟一个新的研究领域。