Results 21 to 30 of about 30,935 (242)

Testicular sperm aspiration has a poor effect in predicting micro-TESE outcomes in NOA patients with AZFc deletion

open access: yesBasic and Clinical Andrology, 2023
Background Testicular sperm aspiration (TESA) is widely used in the diagnosis and management of nonobstructive azoospermia. However, its ability for predicting microdissection testicular sperm extraction in nonobstructive azoospermia (NOA) patients with ...
Chenyao Deng   +9 more
doaj   +1 more source

Evaluation of Preincubation Time Interval in TesticularBiopsy to Obtain Optimum Sperm Parameters [PDF]

open access: yesCell Journal, 2012
Objective: In sever oligospermia; one of the paths used for surgical sperm retrieval (SSR) is to extract sperm via a testicular biopsy. The aim of our study is to determine the reliable time interval between testicular biopsy and intracytoplasmic sperm ...
Arsalan-Ali Ramaji   +4 more
doaj  

Effect of recombinant human vascular endothelial growth factor on testis tissue xenotransplants from prepubertal boys: a three-case study [PDF]

open access: yes, 2019
Research question Does recombinant human vascular endothelial growth factor (VEGF-165) improve the efficiency of human immature testis tissue (ITT) xenotransplantation?
Goossens, Ellen   +5 more
core   +1 more source

HISTOPATHOLOGIC FINDINGS IN 848 TESTICULAR BIOPSIES OF INFERTILE MALES [PDF]

open access: yesActa Medica Iranica, 1999
848 testicular biopsy slides of 664 infertile men were reviewed from the archive of Jahad Daneshgahi pathology Center. Tite mean age of patients was 33 years. Bilateral testicular biopsies were performed in 197 cases.
M. Jamaii   +1 more
doaj   +1 more source

Effect of Recombinant Gonadotropin on Testicular Function and Testicular Sperm Extraction in Five Cases of NR0B1 (DAX1) Pathogenic Variants

open access: yesFrontiers in Endocrinology, 2022
BackgroundNR0B1 pathogenic variants can cause congenital adrenal hypoplasia or primary adrenal insufficiency in early childhood usually associated with hypogonadotropic hypogonadism.
Jordan Teoli   +28 more
doaj   +1 more source

Microlitíase e tumor testicular.

open access: yesActa Médica Portuguesa, 2005
Testicular microlithiasis is a rare entity, usually asymptomatic and bilateral. There are however reports that until 40% of the cases may be related with testicular tumours. We report an 11-year-old boy, with a four-month history of left testicular mass.
Raquel Coelho   +4 more
doaj   +1 more source

Testicular biopsies in infertility and correlation with clinical and laboratory features

open access: yesAsian Journal of Medical Sciences, 2022
Background: With advances in assisted reproductive techniques management of infertility is changing at a very fast pace. Although minimally invasive techniques such as testicular sperm aspiration and micro-dissection testicular sperm extraction ...
Priscilla Babu , Vivi M Srivastava
doaj   +1 more source

Management of germ cell tumors in children: Approaches to cure [PDF]

open access: yes, 2002
The introduction of cisplatinum chemotherapy and current advances in the surgical treatment have resulted in a dramatic improvement of the prognosis of children with malignant germ cell tumors (GCT).
Calaminus, G.   +4 more
core   +1 more source

Testicular expression of TDRD1, TDRD5, TDRD9 and TDRD12 in azoospermia. [PDF]

open access: yes, 2020
BACKGROUND: Tudor domain-containing proteins (TDRDs) play a critical role in piRNA biogenesis and germ cell development. piRNAs, small regulatory RNAs, act by silencing of transposons during germline development and it has recently been shown in animal ...
Aghaei, M   +9 more
core   +1 more source

Leydig Cells in Patients with Non-Obstructive Azoospermia: Do They Really Proliferate?

open access: yesLife, 2021
Background: Non-obstructive azoospermia (NOA) is a form of male infertility caused by disorders of the testicular parenchyma and impaired spermatogenesis.
Dinko Hauptman   +7 more
doaj   +1 more source

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