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https://www.readbyqxmd.com/read/28104681/copy-number-variations-of-e2f1-a-new-genetic-risk-factor-for-testicular-cancer
#1
Maria Santa Rocca, Andrea Di Nisio, Arianna Marchiori, Marco Ghezzi, Giuseppe Opocher, Carlo Foresta, Alberto Ferlin
Testicular germ cell tumor (TGCT) is one of the most heritable forms of cancer. In last years many evidence suggested that constitutional genetic factors, mainly single nucleotide polymorphisms, can increase its risk. However, the possible contribution of copy-number variations (CNVs) in TGCT susceptibility has not been substantially addressed. Indeed, an increasing number of studies have focused on the effect of CNVs on gene expression and on the role of these structural genetic variations as risk factors for different forms of cancer...
January 19, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28097877/the-epigenetics-of-testicular-germ-cell-tumors-looking-for-novel-disease-biomarkers
#2
Ana Laura Costa, João Lobo, Carmen Jerónimo, Rui Henrique
Testicular germ cell tumors (TGCT) are a group of heterogeneous, biologically diverse and clinically challenging neoplasms. Despite the relatively low incidence and mortality rates, a subgroup of patients with disseminated disease relapse after conventional therapy and have a dismal prognosis. Moreover, TGCT afflict mostly young men and have therapeutic peculiarities, with some patients showing resistance to cisplatin-based treatments and others being troubled by irreversible side effects, such as infertility...
January 18, 2017: Epigenomics
https://www.readbyqxmd.com/read/28096358/repair-shielding-of-platinum-dna-lesions-in-testicular-germ-cell-tumors-by-high-mobility-group-box-protein-4-imparts-cisplatin-hypersensitivity
#3
Samuel G Awuah, Imogen A Riddell, Stephen J Lippard
Cisplatin is the most commonly used anticancer drug for the treatment of testicular germ cell tumors (TGCTs). The hypersensitivity of TGCTs to cisplatin is a subject of widespread interest. Here, we show that high-mobility group box protein 4 (HMGB4), a protein preferentially expressed in testes, uniquely blocks excision repair of cisplatin-DNA adducts, 1,2-intrastrand cross-links, to potentiate the sensitivity of TGCTs to cisplatin therapy. We used CRISPR/Cas9-mediated gene editing to knockout the HMGB4 gene in a testicular human embryonic carcinoma and examined cellular responses...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28087892/editorial-comment-to-clinical-characteristics-of-testicular-germ-cell-tumors-in-patients-aged-50%C3%A2-years-and-older-a-large-scale-study-from-the-cancer-registration-committee-of-the-japanese-urological-association
#4
Takeshi Kishida
No abstract text is available yet for this article.
January 13, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28081195/assessment-of-volumetric-versus-manual-measurement-in-disseminated-testicular-cancer-no-difference-in-assessment-between-non-radiologists-and-genitourinary-radiologist
#5
Çiğdem Öztürk, Ton Velleman, Alphons H H Bongaerts, L M Bergman, Robert J van Ginkel, Jourik A Gietema, Harald J Hoekstra
BACKGROUND: The aim of this study was to assess the feasibility and reproducibility of semi-automatic volumetric measurement of retroperitoneal lymph node metastases in testicular cancer (TC) patients treated with chemotherapy versus the standardized manual measurements based on RECIST criteria. METHODS: 21 TC patients with retroperitoneal lymph node metastases of testicular cancer were studied with a CT scan of chest and abdomen before and after cisplatin based chemotherapy...
2017: PloS One
https://www.readbyqxmd.com/read/28079292/germ-cell-tumors-insights-from-the-drosophila-ovary-and-the-mouse-testis
#6
REVIEW
Helen K Salz, Emily P Dawson, Jason D Heaney
Ovarian and testicular germ cell tumors of young adults are thought to arise from defects in germ cell development, but the molecular mechanisms underlying malignant transformation are poorly understood. In this review, we focus on the biology of germ cell tumor formation in the Drosophila ovary and the mouse testis, for which the evidence supports common underlying mechanisms such as blocking initiation into the differentiation pathway, impaired lineage progression, and sexual identity instability. We then discuss how these concepts inform our understanding of the disease in humans...
January 12, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28073207/intraoperative-ultrasound-guided-enucleation-of-testicular-nodule
#7
Riccardo Boschian, Giovanni Liguori, Stefano Bucci, Michele Bertolotto, Carlo Trombetta
OBJECTIVE: We report a case of enucleation of a non-palpable right testicular lesion found incidentally at testicular ultrasonography during investigations in a patient with azoospermia. MATERIALS AND METHODS: In 2011 bilateral hypoechoic nonpalpable testicular lesions (5 mm and 3 mm to the right, 3 mm to the left) were found in a 28 years old patient, during diagnostic investigations for azoospermia. In March 2016, ultrasonography showed that the diameter of the right major nodule had grown to 12 mm, characterized by increased vascularization and increased texture...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073205/rare-presentation-of-a-testicular-angiofibroma-treated-with-testis-sparing-surgery
#8
Luca Leone, Paola Fulvi, Giulia Sbrollini, Alessandra Filosa, Enrico Caraceni, Angelo Marronaro, Andrea B Galosi
INTRODUCTION: Testicular benign tumors are very rare (< 5%). Testicular Angiofibroma (AF) is one of those, however the gold standard of treatment and follow-up is still unclear. CASE REPORT: A 47 years-old man with only one functioning testis was referred to our clinic for a palpable right testicular mass and atrophic contralateral testis. Patient underwent testis-sparing surgery with inguinal approach and intraoperative frozen sections examination with diagnosis of AF...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073203/testicular-sparing-surgery-in-small-testis-masses-a-multinstitutional-experience
#9
Andrea B Galosi, Paola Fulvi, Andrea Fabiani, Lucilla Servi, Alessandra Filosa, Luca Leone, Angelo Marronaro, Enrico Caraceni, Rodolfo Montironi
INTRODUCTION: The incidence of benign testicular tumors is increasing in particular in small lesion incidentally found at scrotal ultrasonography. Primary aim of this study was to perform radical surgery in malignant tumor. Secondary aim was to verify the efficacy of the diagnostic-therapeutic pathway recently adopted in management of small masses with testis sparing surgery in benign lesions. MATERIALS AND METHODS: In this multicenter study, we reviewed all patients with single testis lesion less than 15 mm at ultrasound as main diameter...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073127/long-term-consequences-of-congenital-adrenal-hyperplasia-due-to-classic-21-hydroxylase-deficiency-in-adolescents-and-adults
#10
Ja Hye Kim, Jin-Ho Choi, Eungu Kang, Yoon-Myung Kim, Beom Hee Lee, Han-Wook Yoo
Background The management of congenital adrenal hyperplasia (CAH) from pediatric to adulthood is challenging to achieve optimal growth and puberty. This study characterizes the clinical outcomes of 21-hydroxylase deficiency. Methods 53 CAH patients were included (33 females, 15 and 18 patients with the salt-wasting [SW] and simple-virilizing [SV] forms; and 20 males, 16 and 4 patients with the SW and SV forms). We reviewed growth parameters, pubertal status, and long-term morbidities. Results In females, the age at pubertal onset and pubarche was 9...
January 10, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28071636/epidemiology-of-male-seminomatous-and-nonseminomatous-germ-cell-tumors-and-response-to-first-line-chemotherapy-from-a-tertiary-cancer-center-in-india
#11
A Joshi, S Zanwar, N Shetty, V Patil, V Noronha, G Bakshi, G Prakash, S Menon, K Prabhash
INTRODUCTION: Unlike the developed countries, there is a lack of good epidemiologic data for testicular germ cell tumors (GCTs) in India with majority presenting in advanced stage. This study aims to elaborate on the epidemiology of testicular GCTs and response to standard first-line chemotherapy (CT). METHODS: GCTs treated at our center from January 2013 to June 2014 were retrospectively analyzed. Patients underwent orchidectomy either outside or at our hospital...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28069337/erratum-to-non-palpable-incidentally-found-testicular-tumors-differentiation-between-benign-malignant-and-burned-out-tumors-using-dynamic-contrast-enhanced-mri-eur-j-radiol-85-11-2016-2072-2082
#12
Imane El Sanharawi, Jean-Michel Correas, Ludivine Glas, Sophie Ferlicot, Vincent Izard, Béatrice Ducot, Marie-France Bellin, Gérard Benoît, Laurence Rocher
No abstract text is available yet for this article.
January 6, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28066838/neuroendocrine-carcinoma-of-the-ovotestis-a-case-report-and-review-of-literatures
#13
Tahereh Ashrafganjoei, Ainaz Sourati, Mahdiss Mohamadianamiri
BACKGROUND: Neuroendocine carcinoma of the gynecologic tract is rare and poses a significant clinical challenge because of tumor heterogeneity and lack of standardized guidelines for treatment. Ovotestis refers to the histology of a gonad that contains both ovarian follicles and testicular tubular elements. Ovotesticular disorder of sexual development occurs in fewer than 10% of all disorders of sexual development. Gonadal tumors with malignant potential occur in 2.6% of all cases of ovotesticular disorder of sexual development...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28064312/-polymorphisms-of-kitlg-spry4-and-bak1-genes-in-patients-with-testicular-germ-cell-tumors-and-individuals-with-infertility-associated-with-azfc-deletion-of-the-y-chromosome
#14
M V Nemtsova, E V Ivkin, O A Simonova, V V Rudenko, V B Chernykh, D S Mikhaylenko, O B Loran
Testicular cancer is the most common form of solid cancer in young men. Testicular cancer is represented by testicular germ cell tumors (TGCTs) derived from embryonic stem cells with different degrees of differentiation in about 95% of cases. The development of these tumors is related to the formation of a pool of male germ cells and gametogenesis. Clinical factors that are predisposed to the development of germ-cell tumors include cryptorchidism and testicular microlithiasis, as well as infertility associated with the gr/gr deletion within the AZFс locus...
November 2016: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28061407/the-antioxidant-role-of-agomelatine-and-gallic-acid-on-oxidative-stress-in-stz-induced-type-i-diabetic-rat-testes
#15
Gurkan Yigitturk, Ahmet Cagdas Acara, Oytun Erbas, Fatih Oltulu, Nefise Ulku Karabay Yavasoglu, Aysegul Uysal, Altug Yavasoglu
Diabetes is a multisystem disorder and its effects are observed on the reproductive system. One of the main causes of testicular tissue damage is diabetes-induced overproduction of reactive oxygen species and glycated end products. The main objectives of this study were to investigate the possible effects of agomelatine (AG) and gallic acid (GA) in suppressing oxidative stress in Type I diabetes induced testicular damage. A total of 28 adult male rats were included in the study. Diabetes was induced by intraperitoneal injection of streptozocin (STZ, 55mg/kg) to 21 rats, which were then randomly assigned to 3 groups; 1mL saline solution was given to the diabetes+saline group by oral gavage, 20mg/kg/day oral AG was given to the diabetes+AG group, and 20mg/kg/day oral GA was given to the diabetes+GA group for 4 weeks...
January 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28058004/testicular-cancer-in-down-syndrome-with-spinal-cord-metastases
#16
Turky Almouhissen, Hattan Badr, Bassam AlMatrafi, Noor Alessa, Anmar Nassir
A 22-year-old male patient with Down syndrome was referred to our hospital with a vast left testicular mass. He underwent a left radical inguinal orchiectomy, and a histopathological examination of the mass showed a yolk sac tumor invading the epididymis. The patient was discharged in a satisfactory condition. Sixteen days later, the patient presented again complaining of lower limb weakness. Magnetic resonance imaging of the spine showed metastatic lesions compressing the dorsal spine, and he underwent emergency surgical decompression...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28058002/the-diagnostic-yield-of-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-in-recurrent-testicular-seminoma
#17
Athanasios Bantis, Petros Sountoulides, Linda Metaxa, Pavlos Pavlidis, Eleni Aggelonidou, Halil Arif, Athanasios Zisimopoulos
The use of positron emission tomography-computed tomography (PET-CT) scan imaging is undoubtedly a significant evolution in oncological urology, although at present of limited use in every day urology practice. The aim of this study is to highlight the indication and diagnostic accuracy of fluorine-18 fluorodeoxyglucose PET/CT in the staging of a patient with metachronous bilateral testicular seminoma, elevated tumor markers, and equivocal conventional imaging findings.
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28057998/cisplatin-and-bleomycin-induced-acute-peripheral-vascular-stenosis-in-patient-with-testicular-cancer
#18
Tayyar Alp Ozkan, Ufuk Aydin, Derih Ay, I Oguz Ozden Cebeci
After cisplatin and bleomycin-containing chemotherapy (CTx) for testicular cancer, part of the patients may develop acute or long-term cardiovascular toxicity. In the present case, we reported that a 58-year-old male patient presenting with testicular tumors who developed acute peripheral arterial disease during combination CTx with bleomycin, etoposide, and cisplatin. Superficial femoral artery occlusion not responded to structure thrombolytic and anticoagulators treatment. Left lower extremity was amputated below knee...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28054283/mediastinal-seminoma-associated-with-multilocular-thymic-cyst
#19
Masato Inui, Jun-Ichi Nitadori, Shogo Tajima, Takahusa Yoshioka, Noriko Hiyama, Takeyuki Watadani, Aya Shinozaki-Ushiku, Kazuhiro Nagayama, Masaki Anraku, Masaaki Sato, Masashi Fukayama, Jun Nakajima
An asymptomatic 26-year-old man received an annual medical check-up, and chest X-ray showed a protrusion of the aortopulmonary window. Chest computed tomography (CT) revealed an anterior mediastinal tumor and cysts with thin wall and septum enhancement. The preoperative diagnosis was cystic thymoma or malignant lymphoma. We performed total resection of the tumor through a median sternotomy. The pathological findings revealed seminoma, positive for c-kit stain, and multilocular thymic cysts. Cysts were lined by normal squamous epithelium and no seminoma cells were located on their surface...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28052023/spermatogonial-stem-cells-and-progenitors-are-refractory-to-reprogramming-to-pluripotency-by-the-transcription-factors-oct3-4-c-myc-sox2-and-klf4
#20
Sébastien Corbineau, Bruno Lassalle, Maelle Givelet, Inès Souissi-Sarahoui, Virginie Firlej, Paul Henri Romeo, Isabelle Allemand, Lydia Riou, Pierre Fouchet
The male germinal lineage, which is defined as unipotent, produces sperm through spermatogenesis. However, embryonic primordial germ cells and postnatal spermatogonial stem cells (SSCs) can change their fate and convert to pluripotency in culture when they are not controlled by the testicular microenvironment. The mechanisms underlying these reprogramming processes are poorly understood. Testicular germ cell tumors, including teratoma, share some molecular characteristics with pluripotent cells, suggesting that cancer could result from an abnormal differentiation of primordial germ cells or from an abnormal conversion of SCCs to pluripotency in the testis...
December 28, 2016: Oncotarget
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