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Asian Journal of Andrology

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https://www.readbyqxmd.com/read/29319007/calpain-inhibition-improves-erectile-function-in-diabetic-mice-via-upregulating-endothelial-nitric-oxide-synthase-expression-and-reducing-apoptosis
#1
Hao Li, Li-Ping Chen, Tao Wang, Shao-Gang Wang, Ji-Hong Liu
Calpain activation contributes to hyperglycemia-induced endothelial dysfunction and apoptosis. This study was designed to investigate the role of calpain inhibition in improving diabetic erectile dysfunction (ED) in mice. Thirty-eight-week-old male C57BL/6J mice were divided into three groups: (1) nondiabetic control group, (2) diabetic mice + vehicle group, and (3) diabetic mice + MDL28170 (an inhibitor of calpain) group. Type 1 diabetes was induced by intraperitoneal injection of streptozotocin at 60 mg kg-1 body weight for 5 consecutive days...
January 9, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29286007/histological-subtype-is-a-significant-predictor-for-inguinal-lymph-node-metastasis-in-patients-with-penile-squamous-cell-carcinoma
#2
Jin-You Wang, Ming-Zhu Gao, De-Xin Yu, Dong-Dong Xie, Yi Wang, Liang-Kuan Bi, Tao Zhang, De-Mao Ding
The present study aimed to investigate the relationship between histopathological subtype and the probability of inguinal lymph node metastasis (ILNM) in patients with penile squamous cell carcinoma (PSCC). The clinical records of 198 consecutive patients with PSCC were analyzed retrospectively. Primary lesions were reevaluated according to the 2016 World Health Organization (WHO) histopathological classification. We retrieved the clinicopathological factors from the medical records including age, clinical lymph node stage, pathological tumor stage, lymphatic invasion, and nerve invasion...
December 29, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29286005/current-concepts-and-trends-in-the-treatment-of-bone-metastases-in-patients-with-advanced-prostate-cancer
#3
REVIEW
Miriam Hegemann, Moritz Maas, Steffen Rausch, Simon Walz, Jens Bedke, Arnulf Stenzl, Tilman Todenhöfer
Bone metastases have a major impact on quality of life and survival of patients with advanced prostate cancer. In the last decade, the development and approval of substances inhibiting the vicious cycle of bone metastases have enabled the reduction of complications caused by bone metastases in patients with castration-resistant prostate cancer. These drugs have raised awareness of the importance of skeletal-related events which in the meantime represent an important end point also in trials using agents not specifically designed for bone lesions...
December 29, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29286006/altered-piwi-like-1-and-piwi-like-2-mrna-expression-in-ejaculated-spermatozoa-of-men-with-impaired-sperm-characteristics
#4
Maria Giebler, Thomas Greither, Lisa Müller, Carina Mösinger, Hermann M Behre
In about half the cases of involuntary childlessness, a male infertility factor is involved. The PIWI-LIKE genes, a subclade of the Argonaute protein family, are involved in RNA silencing and transposon control in the germline. Knockout of murine Piwi-like 1 and 2 homologs results in complete infertility in males. The aim of this study was to analyze whether the mRNA expression of human PIWI-LIKE 1-4 genes is altered in ejaculated spermatozoa of men with impaired sperm characteristics. Ninety male participants were included in the study, among which 47 were with normozoospermia, 36 with impaired semen characteristics according to the World Health Organization (WHO) manual, 5th edition, and 7 with azoospermia serving as negative control for the PIWI-LIKE 1-4 mRNA expression in somatic cells in the ejaculate...
December 26, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29271400/phosphoglycerate-mutase-1-knockdown-inhibits-prostate-cancer-cell-growth-migration-and-invasion
#5
Yao-An Wen, Bo-Wei Zhou, Dao-Jun Lv, Fang-Peng Shu, Xian-Lu Song, Bin Huang, Chong Wang, Shan-Chao Zhao
Phosphoglycerate mutase 1 (PGAM1) is upregulated in many cancer types and involved in cell proliferation, migration, invasion, and apoptosis. However, the relationship between PGAM1 and prostate cancer is poorly understood. The present study investigated the changes in PGAM1 expression in prostate cancer tissues compared with normal prostate tissues and examined the cellular function of PGAM1 and its relationship with clinicopathological variables. Immunohistochemistry and Western blotting revealed that PGAM1 expression was upregulated in prostate cancer tissues and cell lines...
December 22, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29271399/intermittent-low-dose-antiandrogen-monotherapy-as-an-alternative-therapeutic-option-for-patients-with-positive-surgical-margins-after-radical-prostatectomy
#6
Kyung Hwa Choi, Seung Ryeol Lee, Young Kwon Hong, Dong Soo Park
The aim of the present study was to determine whether oncologic outcomes and adverse events associated with active on/off intermittent antiandrogen monotherapy (daily bicalutamide, 50 mg per day) are comparable with those of standard external beam radiation therapy (EBRT) or combined androgen blockade (CAB) therapy in prostate cancers with positive surgical margins after radical prostatectomy. Two hundred twenty-three patients with positive surgical margins post-radical prostatectomy who underwent active surveillance (AS, n = 32), EBRT without hormone therapy (n = 55), intermittent antiandrogen monotherapy without EBRT (IAAM, n = 50), or CAB without EBRT (n = 86), between 2007 and 2014, were reviewed retrospectively...
December 22, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29271398/abnormal-synapses-recombination-and-impaired-double-strand-break-repair-in-a-man-with-nonobstructive-azoospermia
#7
LETTER
Xiao-Yan Luo, Qing-Ling Yang, Hang Xin, Fei-Fei Zhao, Rui Bai, Fang-Yuan Li, Jing Zhu, Ying-Pu Sun
No abstract text is available yet for this article.
December 19, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29271397/the-transcription-factor-zeb1-promotes-an-aggressive-phenotype-in-prostate-cancer-cell-lines
#8
Octavio Orellana-Serradell, Daniela Herrera, Enrique A Castellon, Hector R Contreras
It has been reported that one of the factors that promotes tumoral progression is the abnormal activation of the epithelial-mesenchymal transition program. This process is associated with tumoral cells acquiring invasive and malignant properties and has the transcription factor zinc finger E-box-binding homeobox 1 (ZEB1) as one of its main activators. However, the role of ZEB1 in promoting malignancy in prostate cancer (PCa) is still unclear. Here, we report that ZEB1 expression correlates with Gleason score in PCa samples and that expression of ZEB1 regulates epithelial-mesenchymal transition and malignant characteristics in PCa cell lines...
December 19, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29226878/asic1a-contributes-to-the-symptom-of-pain-in-a-rat-model-of-chronic-prostatitis
#9
Song Fan, Zong-Yao Hao, Li Zhang, Jun Zhou, Yi-Fei Zhang, Shen Tai, Xian-Sheng Zhang, Chao-Zhao Liang
This study aims to validate our hypothesis that acid-sensing ion channels (ASICs) may contribute to the symptom of pain in patients with chronic prostatitis (CP). We first established a CP rat model, then isolated the L5-S2 spinal dorsal horn neurons for further studies. ASIC1a was knocked down and its effects on the expression of neurogenic inflammation-related factors in the dorsal horn neurons of rat spinal cord were evaluated. The effect of ASIC1a on the Ca2+ ion concentration in the dorsal horn neurons of rat spinal cord was measured by the intracellular calcium ([Ca2+]i) intensity...
December 8, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29205180/androgen-receptor-deficiency-in-monocytes-macrophages-does-not-alter-adiposity-or-glucose-homeostasis-in-male-mice
#10
Katya B Rubinow, Barbara Houston, Shari Wang, Leela Goodspeed, Kayoko Ogimoto, Gregory J Morton, Christopher McCarty, Robert E Braun, Stephanie T Page
Androgen deprivation in men leads to increased adiposity, but the mechanisms underlying androgen regulation of fat mass have not been fully defined. Androgen receptor (AR) is expressed in monocytes/macrophages, which are resident in key metabolic tissues and influence energy metabolism in surrounding cells. Male mice bearing a cell-specific knockout of the AR in monocytes/macrophages (M-ARKO) were generated to determine whether selective loss of androgen signaling in these cells would lead to altered body composition...
December 5, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29205179/commentary-on-nondegloving-technique-for-peyronie-s-disease-with-penile-prosthesis-implantation-and-double-dorsal-ventral-patch-graft
#11
Gerard D Henry, Kavina Jani
No abstract text is available yet for this article.
December 5, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29205178/association-of-subcutaneous-testosterone-pellet-therapy-with-developing-secondary-polycythemia
#12
Katherine Lang Rotker, Michael Alavian, Bethany Nelson, Grayson L Baird, Martin M Miner, Mark Sigman, Kathleen Hwang
A variety of methods for testosterone replacement therapy (TRT) exist, and the major potential risks of TRT have been well established. The risk of developing polycythemia secondary to exogenous testosterone (T) has been reported to range from 0.4% to 40%. Implantable T pellets have been used since 1972, and secondary polycythemia has been reported to be as low as 0.4% with this administration modality. However, our experience has suggested a higher rate. We conducted an institutional review board-approved, single-institution, retrospective chart review (2009-2013) to determine the rate of secondary polycythemia in 228 men treated with subcutaneously implanted testosterone pellets...
December 5, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29199649/testosterone-and-its-metabolites-differential-associations-with-cardiovascular-and-cerebrovascular-events-in-men
#13
REVIEW
Bu B Yeap
As men grow older, circulating testosterone declines while the incidence of cardiovascular disease increases. Thus, the role of sex hormones as biomarkers, and possibly contributing factors to clinical manifestations of cardiovascular disease in the increasing demographic of aging men, has attracted considerable interest. This review focuses on observational studies of endogenous androgens, namely circulating testosterone and dihydrotestosterone, which have examined their associations with cardiovascular events such as myocardial infarction and stroke...
December 1, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29176187/current-and-emerging-trends-in-prostate-cancer-immunotherapy
#14
Adam Schatz, Badar M Mian
No abstract text is available yet for this article.
November 24, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29148520/an-in-vitro-prototype-of-a-porcine-biomimetic-testis-like-cell-culture-system-a-novel-tool-for-the-study-of-reassembled-sertoli-and-leydig-cells
#15
Iva Arato, Giovanni Luca, Francesca Mancuso, Catia Bellucci, Cinzia Lilli, Mario Calvitti, Barbara C Hansen, Domenico Milardi, Giuseppe Grande, Riccardo Calafiore
At present, there is no reliable in vitro assembled prepubertal testis-like biomimetic organ culture system designed to assess the functional effects of human gonadotropins on Sertoli and Leydig cells. Spermatogenesis is regulated by endocrine, paracrine, and juxtacrine factors (testicular cross-talk), mainly orchestrated by gonadotropins such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) that play a pivotal role by stimulating Leydig and Sertoli cells, respectively. The aim of our study was to set up an in vitro prepubertal porcine bioengineered construct as a new model for experimental studies on reassembled Sertoli and Leydig cells...
November 10, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29111541/lipoxin-a4-improves-erectile-dysfunction-in-rats-with-type-i-diabetes-by-inhibiting-oxidative-stress-and-corporal-fibrosis
#16
Kai Cui, Zhe Tang, Chuan-Chang Li, Tao Wang, Ke Rao, Shao-Gang Wang, Ji-Hong Liu, Zhong Chen
Previous studies have shown that oxidative stress and corporal fibrosis in penile tissues of rats were key pathological factors of erectile dysfunction induced by diabetic mellitus (DMED). Lipoxin A4 (LXA4) was reported to inhibit oxidative stress and fibrosis diseases, while whether it could exert a protective role on erectile function was not clear. Type I diabetic mellitus (DM) was induced in thirty male 10-week-old Sprague-Dawley rats using streptozotocin. Ten weeks later, twenty-two rats with DMED confirmed by an apomorphine test were divided into two groups: the DMED group (n = 11) and the DMED + LXA4 group (n = 11; LXA4 injection daily for 4 weeks)...
November 7, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29111540/transcription-and-regulation-of-hepatitis-b-virus-genes-in-host-sperm-cells
#17
Ying Zhong, Dong-Ling Liu, Mohamed Morsi M Ahmed, Peng-Hao Li, Xiao-Ling Zhou, Qing-Dong Xie, Xiao-Qing Xu, Ting-Ting Han, Zhi-Wei Hou, Ji-Hua Huang, Lan Xu, Tian-Hua Huang
To investigate whether transcription of hepatitis B virus (HBV) gene occurs in human sperm, total RNA was extracted from sperm of patients with chronic HBV infection (test-1), from donor sperm transfected with a plasmid containing the full-length HBV genome (test-2), and from nontransfected donor sperm (control), used as the template for reverse transcription-polymerase chain reaction (RT-PCR). Positive bands for HBV DNA were observed in the test groups but not in the control. Next, to identify the role of host genes in regulating viral gene transcription in sperm, total RNA was extracted from 2-cell embryos derived from hamster oocytes fertilized in vitro by HBV-transfected (test) or nontransfected (control) human sperm and successively subjected to SMART-PCR, suppression subtractive hybridization, T/A cloning, bacterial amplification, microarray hybridization, sequencing and the Basic Local Alignment Search Tool (BLAST) search to isolate differentially expressed genes...
November 7, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29111539/external-validation-and-newly-development-of-a-nomogram-to-predict-overall-survival-of-abiraterone-treated-castration-resistant-patients-with-metastatic-prostate-cancer
#18
Yun-Jie Yang, Guo-Wen Lin, Gao-Xiang Li, Bo Dai, Ding-Wei Ye, Jun-Long Wu, Hu-Yang Xie, Yao Zhu
Abiraterone acetate is approved for the treatment of castration-resistant prostate cancer (CRPC); however, its effects vary. An accurate prediction model to identify patient groups that will benefit from abiraterone treatment is therefore urgently required. The Chi model exhibits a good profile for risk classification, although its utility for the chemotherapy-naive group is unclear. This study aimed to externally validate the Chi model and develop a new nomogram to predict overall survival (OS). We retrospectively analyzed a cohort of 110 patients...
November 7, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29111538/hormone-levels-following-surgical-and-medical-castration-defining-optimal-androgen-suppression
#19
LETTER
Michael T Schweizer, Michael L Hancock, Robert H Getzenberg, Evan Y Yu
No abstract text is available yet for this article.
November 7, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29086760/penile-cutaneous-horn-a-rare-case-report-and-review-of-the-literature
#20
LETTER
Ying Wang, Min-Qi Tu, Xiao-Jing Li, Qiang Fu, Guo-Wei Shi
No abstract text is available yet for this article.
October 27, 2017: Asian Journal of Andrology
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