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https://www.readbyqxmd.com/read/29738189/-bipolar-androgen-therapy-a-novel-therapeutic-strategy-for-castration-resistant-prostate-cancer
#1
REVIEW
Yong-Hui Hu, Jian-Chao Guo, Meng Zhang
Bipolar androgen therapy (BAT), as a new therapeutic strategy for castration-resistant prostate cancer (CRPC), can significantly reduce the level of prostate-specific antigen (PSA) for prostate cancer patients and has exhibited an excellent safety profile with no serious adverse events. Based on the clinical trials recently published at home and abroad, this article reviews the background, action mechanism, development, and prospect of BAT.
December 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29707086/epigenetics-of-metabolic-syndrome-as-a-mood-disorder
#2
REVIEW
Sermin Kesebir
Mood disorders comprise major depressive disorder (MDD), bipolar disorder (BD) and the milder forms of these two disorders. Reccurring MDD is also known as unipolar disorder. The distinction between unipolar and bipolar disorders was first suggested in 1957 by Leonard and was made official after support by several studies in 1980. Indeed, in 150 AD, Aretaeus of Cappadocia wrote "It seems to me that melancholia is the beginning and a part of mania". Additionally, Kraepelin, who proposed the first medical disease model in psychiatry a century ago, considered recurrent unipolar depression cases under the category of bipolar disorder and conceptualized spectrum disorders...
June 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29666833/resolving-the-coffey-paradox-what-does-the-androgen-receptor-do-in-normal-vs-malignant-prostate-epithelial-cells
#3
REVIEW
John T Isaacs
Donald Straley Coffey completed his 85 year life's journey on November 9, 2017. In his wake, he left a legion of inspired and loyal students, fellows, and faculty colleagues from all over the world to carry on his passion both for life in general and his 50 year quest to conquer cancer. Early in his career, Dr. Coffey developed a series of animal models to study how androgen regulates the growth of both normal and abnormal prostatic epithelium. As part of these early studies, Dr. Coffey uncovered a paradox in that anti-androgen treatment given at the "wrong" time paradoxically enhanced, not inhibited, normal prostate growth...
2018: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/29541149/coping-with-the-new-era-noise-and-light-pollution-hperactivity-and-steroid-hormones-towards-an-evolutionary-view-of-bipolar-disorders
#4
REVIEW
M G Carta, A Preti, H S Akiskal
Human population is increasing in immense cities with millions of inhabitants, in which life is expected to run 24 hours a day for seven days a week (24/7). Noise and light pollution are the most reported consequences, with a profound impact on sleep patterns and circadian biorhythms. Disruption of sleep and biorhythms has severe consequences on many metabolic pathways. Suppression of melatonin incretion at night and the subsequent effect on DNA methylation may increase the risk of prostate and breast cancer...
2018: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/29417820/bidirectional-electrochemiluminescence-color-switch-an-application-in-detecting-multimarkers-of-prostate-cancer
#5
Yin-Zhu Wang, Si-Yuan Ji, Heng-Yu Xu, Wei Zhao, Jing-Juan Xu, Hong-Yuan Chen
A selective excitation of [Ir(df-ppy)2 (pic)] and [Ru(bpy)3 ]2+ through tuning the electrode potential is reported in this work. Bidirectional color change from blue-green to red could be observed along with increase and decrease of the potential, which was ascribed to the dual-potential excitation property of [Ir(df-ppy)2 (pic)]. Similar to the three-electrode system, selective excitation of ECL could be achieved at the anode of the bipolar electrode (BPE). Both increase and decrease of the faradic reactions at the cathode of the BPE could induce ECL reporting color at the other pole switched from blue-green to red...
March 6, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29275414/a-prospective-audit-of-intermittent-anti-androgen-verses-pituitary-blockade-suggests-a-bipolar-androgen-type-strategy-may-be-safe-in-untreated-prostate-cancer
#6
Timothy Oliver, Peter Wilson, Wendy Ansell, Tim Philp, Frank Chinegwundoh, Jonathan Shamash, Greg Shaw, Amar Ahmad
OBJECTIVE: A locally advanced Gleason 4 + 4 prostate cancer patient who was on self-medication with intermittent anti-androgen monotherapy (iAAm) over 14 years suggested that raised testosterone was not dangerous and this suggestion needed investigating. PATIENTS: Others who were on AA continuously were recruited to ongoing audit of intermittent hormone therapy (IHT) and iAAm outcomes were compared with intermittent LHRH therapy (iLHRH or iMAB). RESULTS: Between 1994 and 2007, 111 patients sought IHT because of side effects of treatment...
2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29248716/visual-electrochemiluminescence-ratiometry-on-bipolar-electrode-for-bioanalysis
#7
Hai-Jie Lu, Wei Zhao, Jing-Juan Xu, Hong-Yuan Chen
In this work, we developed a visual ECL ratiometry on a closed bipolar electrode (BPE) for the detection of prostate specific antigen (PSA), prostate cancer biomarker. High efficient CdTe QDs was synthesized which emitted visualized red light at BPE cathode. Integrating with the anodic ECL emitters, luminol, visual emission of red-blue ratiometric ECL was achieved in BPE array chips. As a sensing probe, Au NRs nanocomposite was assembled on the surface of the cathode and acted as both the quencher of the CdTe QDs ECL and the promoter of the luminol ECL...
April 15, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29248236/bipolar-androgen-therapy-in-men-with-metastatic-castration-resistant-prostate-cancer-after-progression-on-enzalutamide-an-open-label-phase-2-multicohort-study
#8
Benjamin A Teply, Hao Wang, Brandon Luber, Rana Sullivan, Irina Rifkind, Ashley Bruns, Avery Spitz, Morgan DeCarli, Victoria Sinibaldi, Caroline F Pratz, Changxue Lu, John L Silberstein, Jun Luo, Michael T Schweizer, Charles G Drake, Michael A Carducci, Channing J Paller, Emmanuel S Antonarakis, Mario A Eisenberger, Samuel R Denmeade
BACKGROUND: Prostate cancer that progresses after enzalutamide treatment is poorly responsive to further antiandrogen therapy, and paradoxically, rapid cycling between high and low serum testosterone concentrations (bipolar androgen therapy [BAT]) in this setting might induce tumour responses. We aimed to evaluate BAT in patients with metastatic castration-resistant prostate cancer that progressed after enzalutamide. METHODS: We did this single-centre, open-label, phase 2, multicohort study in the USA...
January 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29067142/intermittent-96-hour-auricular-electroacupuncture-for-hot-flashes-in-patients-with-prostate-cancer-a-pilot-study
#9
Tyvin Rich, Gerald W Porter, Luisel Ricks-Santi, Tzvi Milshtein, Thomas Corbin
Objective: The hot flash is a common vasomotor disorder that causes distress in menopausal women and that can be debilitating in men with prostate cancer who are treated with androgen deprivation therapy (ADT). The utility of auricular electroacupuncture (AEA) was tested exclusively for a small cohort of men with ADT-induced vasomotor symptoms while the men underwent a course of curative radiotherapy. Materials and Methods: Prior to and during radiotherapy treatment, men with vasomotor symptoms were given repeated questionnaires regarding severity and frequency of hot flashes, quality of life (QoL), and sleep over a 6-week span of an AEA protocol...
October 1, 2017: Medical Acupuncture
https://www.readbyqxmd.com/read/28861306/the-predictive-value-of-platelet-to-lymphocyte-and-neutrophil-to-lymphocyte-ratio-in-determining-urethral-stricture-after-transurethral-resection-of-prostate
#10
Murat Gül, Emre Altıntaş, Mehmet Kaynar, Muhammet Serdar Buğday, Serdar Göktaş
OBJECTIVE: The pathology of urethral stricture disease is still unclear however progressive inflammation may contribute to the development of urethral stricture. The platelet-to- lymphocyte ratio (PLR) is a new and simple marker that indicates inflammation. In this study we aimed to investigate the predictive value of neutrophil to lymphocyte ratio (NLR) and PLR in patients with urethral stricture who underwent transurethral resection of prostate (TURP). MATERIAL AND METHODS: A total of 208 patients who underwent bipolar-TURP were included in this study...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28820291/rationale-for-bipolar-androgen-therapy-bat-for-metastatic-prostate-cancer
#11
John T Isaacs, W Nathaniel Brennen, Samuel R Denmeade
No abstract text is available yet for this article.
September 17, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28752333/significance-of-long-chain-polyunsaturated-fatty-acids-in-human-health
#12
REVIEW
Rafael Zárate, Nabil El Jaber-Vazdekis, Noemi Tejera, José A Pérez, Covadonga Rodríguez
In the last decades, the development of new technologies applied to lipidomics has revitalized the analysis of lipid profile alterations and the understanding of the underlying molecular mechanisms of lipid metabolism, together with their involvement in the occurrence of human disease. Of particular interest is the study of omega-3 and omega-6 long chain polyunsaturated fatty acids (LC-PUFAs), notably EPA (eicosapentaenoic acid, 20:5n-3), DHA (docosahexaenoic acid, 22:6n-3), and ARA (arachidonic acid, 20:4n-6), and their transformation into bioactive lipid mediators...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28573914/treatment-strategies-for-dna-repair-deficient-prostate-cancer
#13
REVIEW
Benjamin A Teply, Emmanuel S Antonarakis
Common recurrent genetic alterations have been identified in prostate cancer through comprehensive sequencing efforts, and the prevalence of mutations in DNA repair pathway genes in patients with advanced and metastatic disease approaches 20-25%. Identification of these underlying DNA repair defects may present unique treatment opportunities for patients, both in terms of standard-of-care treatments and selected investigational agents. Areas covered: We review our current understanding of the genomic landscape of prostate cancer, with special attention to alterations in DNA repair pathway genes in metastatic castration-resistant disease...
August 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28377935/gastrointestinal-bleeding-from-metastatic-prostate-adenocarcinoma-to-the-stomach
#14
Andree Koop, Bhaumik Brauhmbhatt, Jason Lewis, Michele D Lewis
We present a rare case of gastrointestinal (GI) bleeding associated with metastatic prostate adenocarcinoma to the stomach. Prostate cancer, which is the most common noncutaneous malignancy among men, rarely spreads to the stomach, with only 7 cases reported in the English literature. Symptoms may include abdominal pain, nausea, vomiting, and GI bleeding. Our patient was treated with epinephrine injection and bipolar cautery, but GI bleeding recurred 7 months later when he had worsening of his thrombocytopenia while using ibuprofen...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28365160/bipolar-androgen-therapy-a-paradoxical-approach-for-the-treatment-of-castration-resistant-prostate-cancer
#15
EDITORIAL
Michael T Schweizer, Emmanuel S Antonarakis, Samuel R Denmeade
Bipolar androgen therapy (BAT) is a paradoxical treatment for castrate-resistant prostate cancer whereby testosterone levels are rapidly alternated between supraphysiologic and near-castrate concentrations. Initial studies demonstrated that BAT is safe and produces clinical responses. A trial comparing enzalutamide against BAT is ongoing.
September 2017: European Urology
https://www.readbyqxmd.com/read/28334950/downstream-targets-of-gwas-detected-genes-for-breast-lung-and-prostate-and-colon-cancer-converge-to-g1-s-transition-pathway
#16
Olga Y Gorlova, Eugene I Demidenko, Christopher I Amos, Ivan P Gorlov
Genome-wide association studies (GWASs) identified over 500 single nucleotide polymorphisms (SNPs) influencing cancer risk. It is logical to expect the cancer-associated genes to cluster in pathways directly involved in carcinogenesis, e.g. cell cycle. Nevertheless, analyses of the GWAS-detected cancer risk genes usually show no or weak enrichment by known cancer genes.We hypothesized that GWAS-detected cancer risk-associated genes function as upstream regulators of the genes directly involved in carcinogenesis...
April 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28246761/-antihormonal-therapy-in-prostate-cancer-side-effects
#17
C H Ohlmann, P Thelen
Androgen deprivation is still standard therapy for prostate cancer, either as primary androgen deprivation therapy or with the use of secondary hormonal drugs including abiraterone and enzalutamide. However, especially the clinically occult side effects like metabolic changes or cardiovascular complications and effects on the psyche of the patient are often not recognized in daily practice. Active monitoring of such side effects is essential for prevention and early intervention. In addition, the efficacy of androgen deprivation therapies is limited by primary and secondary resistance...
April 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28230171/impact-of-genetic-variation-on-human-camkk2-regulation-by-ca-2-calmodulin-and-multisite-phosphorylation
#18
Matthew T O'Brien, Jonathan S Oakhill, Naomi X Y Ling, Christopher G Langendorf, Ashfaqul Hoque, Toby A Dite, Anthony R Means, Bruce E Kemp, John W Scott
The Ca(2+)-calmodulin dependent protein kinase kinase-2 (CaMKK2) is a key regulator of neuronal function and whole-body energy metabolism. Elevated CaMKK2 activity is strongly associated with prostate and hepatic cancers, whereas reduced CaMKK2 activity has been linked to schizophrenia and bipolar disease in humans. Here we report the functional effects of nine rare-variant point mutations that were detected in large-scale human genetic studies and cancer tissues, all of which occur close to two regulatory phosphorylation sites and the catalytic site on human CaMKK2...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28100850/molecular-characteristic-and-physiological-role-of-dopa-decarboxylase
#19
REVIEW
Joanna Guenter, Robert Lenartowski
The enzyme DOPA decarboxylase (aromatic-L-amino-acid decarboxylase, DDC) plays an important role in the dopaminergic system and participates in the uptake and decarboxylation of amine precursors in the peripheral tissues. Apart from catecholamines, DDC catalyses the biosynthesis of serotonin and trace amines. It has been shown that the DDC amino acid sequence is highly evolutionarily conserved across many species. The activity of holoenzyme is regulated by stimulation/blockade of membrane receptors, phosphorylation of serine residues, and DDC interaction with regulatory proteins...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/27749326/the-role-of-testosterone-in-the-treatment-of-castration-resistant-prostate-cancer
#20
REVIEW
Michael W Drazer, Walter M Stadler
Most men with metastatic prostate cancer who are treated with androgen deprivation therapy will eventually develop castration-resistant disease. In this review, we examine the molecular mechanisms that constitute castration resistance and how these processes may be exploited using testosterone-based therapies. We detail how the utilization of superphysiologic doses of testosterone at regular intervals, followed by a rapid clearance of testosterone through continued chemical castration, also known as bipolar androgen therapy, offers an especially promising therapeutic approach...
September 2016: Cancer Journal
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