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https://www.readbyqxmd.com/read/28777889/strategies-of-gnrh-synthetic-analogues-determination-in-doping-control-in-vitro-and-in-vivo-metabolism-data-evaluation-of-lh-and-steroid-profile-parameters-fluctuations-as-suitable-biomarkers
#1
Irina Zvereva, Grigory Dudko, Marina Dikunets
Gonadotropin-releasing hormone (GnRH) and its small peptide synthetic analogues included at Section S2 of World Anti-Doping Agency (WADA) Prohibited List as they stimulate pituitary LH and testicular testosterone (T) secretion. Both following approaches can be applied for determination of these peptides abuse: direct identification of intact compounds and their metabolites in athletes' biofluids along with evaluation of LH and T concentrations as mediate markers of drug intake. To develop an effective concept for GnRH and its analogues determination in anti-doping control in vitro and in vivo studies were conducted...
August 4, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28755574/impact-of-the-cu-ii-ions-on-the-chemical-and-biological-properties-of-goserelin-coordination-pattern-dna-degradation-oxidative-reactivity-and-in-vitro-cytotoxicity
#2
Paulina K Walencik, Kamila Stokowa-Sołtys, Robert Wieczorek, Urszula K Komarnicka, Agnieszka Kyzioł, Małgorzata Jeżowska-Bojczuk
Goserelin acetate (Gos) as a synthetic analog of the mammalian gonadotropin-releasing hormone (GnRH) is widely used in the treatment of sex hormone-related conditions. In this paper we present the chemical and biological aspects of its interaction with Cu(II) ions. The mode of Cu(II) binding and the thermodynamic stability of the obtained complexes were characterized by potentiometry, UV-Vis and CD spectroscopic methods. The DFT calculations were applied in order to investigate and confirm the molecular structure of the studied systems...
July 21, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28652278/palbociclib-combined-with-fulvestrant-in-premenopausal-women-with-advanced-breast-cancer-and-prior-progression-on-endocrine-therapy-paloma-3-results
#3
Sibylle Loibl, Nicholas C Turner, Jungsil Ro, Massimo Cristofanilli, Hiroji Iwata, Seock-Ah Im, Norikazu Masuda, Sherene Loi, Fabrice André, Nadia Harbeck, Sunil Verma, Elizabeth Folkerd, Kathy Puyana Theall, Justin Hoffman, Ke Zhang, Cynthia Huang Bartlett, Mitchell Dowsett
BACKGROUND: The efficacy and safety of palbociclib, a cyclin-dependent kinase 4/6 inhibitor, combined with fulvestrant and goserelin was assessed in premenopausal women with advanced breast cancer (ABC) who had progressed on prior endocrine therapy (ET). PATIENTS AND METHODS: One hundred eight premenopausal endocrine-refractory women ≥18 years with hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) ABC were among 521 women randomized 2:1 (347:174) to fulvestrant (500 mg) ± goserelin with either palbociclib (125 mg/day orally, 3 weeks on, 1 week off) or placebo...
June 26, 2017: Oncologist
https://www.readbyqxmd.com/read/28591499/-dienogest-usefulness-in-pelvic-pain-due-to-endometriosis-a-meta-analysis-of-its-effectiveness
#4
Jack García Uranga-Romano, Marcelino Hernández-Valencia, Arturo Zárate, María Antonia Basavilvazo-Rodríguez
BACKGROUND: Endometriosis is the presence of functional endometrial tissue in the pelvic peritoneum and it affects several age groups. That is why the impact of endometriosis in quality of life is considerable. The objective of this study was to evaluate the effectiveness of dienogest in patients with pelvic pain associated to endometriosis (PPAE). METHODS: The evaluation of the effectiveness was carried out through a systematic review using the Cochrane methodology...
July 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28463149/duration-of-androgen-deprivation-in-locally-advanced-prostate-cancer-long-term-update-of-nrg-oncology-rtog-9202
#5
RANDOMIZED CONTROLLED TRIAL
Colleen A F Lawton, Xiaolei Lin, Gerald E Hanks, Herbert Lepor, David J Grignon, Harmar D Brereton, Meena Bedi, Seth A Rosenthal, Kenneth L Zeitzer, Varagur M Venkatesan, Eric M Horwitz, Thomas M Pisansky, Harold Kim, Matthew B Parliament, Rachel Rabinovitch, Mack Roach, Young Kwok, James J Dignam, Howard M Sandler
PURPOSE: Trial RTOG 9202 was a phase 3 randomized trial designed to determine the optimal duration of androgen deprivation therapy (ADT) when combined with definitive radiation therapy (RT) in the treatment of locally advanced nonmetastatic adenocarcinoma of the prostate. Long-term follow-up results of this study now available are relevant to the management of this disease. METHODS AND MATERIALS: Men (N=1554) with adenocarcinoma of the prostate (cT2c-T4, N0-Nx) with a prostate-specific antigen (PSA) <150 ng/mL and no evidence of distant metastasis were randomized (June 1992 to April 1995) to short-term ADT (STAD: 4 months of flutamide 250 mg 3 times per day and goserelin 3...
June 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28405705/-cost-effectiveness-of-gnrh-antagonists-in-patients-with-prostate-cancer-and-cardiovascular-risk-comparative-analysis-against-leuprorelin-by-the-number-needed-to-treat
#6
D Anderson, J Lehmann, T Ecker, S Vosgerau, V Donatz
BACKGROUND: Recent studies suggest that androgen deprivation therapy (ADT) is associated with increased cardiovascular (CV) risk for patients with hormone-sensitive prostate cancer (PCa) and pre-existing CV disease. This risk seems to be different for the gonadotropin-releasing hormone (GnRH) agonists leuprolide and goserelin and GnRH antagonists, whereas the slightly more expensive GnRH antagonist shows a beneficial risk profile. The present study assesses the cost effectiveness of degarelix compared to leuprolide for PCa patients with increased CV risk...
July 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28394498/degarelix-versus-goserelin-plus-bicalutamide-in-the-short-term-relief-of-lower-urinary-tract-symptoms-in-prostate-cancer-patients-results-of-a-pooled-analysis
#7
Malcolm Mason, Pierre Richaud, Zsolt Bosnyak, Anders Malmberg, Anders Neijber
OBJECTIVE: In patients with prostate cancer (PCa), prostate enlargement may give rise to lower urinary tract symptoms (LUTS); many patients suffer from moderate-to-severe symptoms. We compare the efficacy of degarelix and goserelin plus bicalutamide in improving LUTS in PCa patients. METHODS: Data were pooled from three Phase 3, randomized clinical trials of once-monthly treatment for 12 weeks with degarelix (240/80 mg; n = 289) or goserelin (3.6 mg) plus bicalutamide (50 mg; n = 174) for initial flare protection...
May 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/28270497/neopalana-neoadjuvant-palbociclib-a-cyclin-dependent-kinase-4-6-inhibitor-and-anastrozole-for-clinical-stage-2-or-3-estrogen-receptor-positive-breast-cancer
#8
Cynthia X Ma, Feng Gao, Jingqin Luo, Donald W Northfelt, Matthew Goetz, Andres Forero, Jeremy Hoog, Michael Naughton, Foluso Ademuyiwa, Rama Suresh, Karen S Anderson, Julie Margenthaler, Rebecca Aft, Timothy Hobday, Timothy Moynihan, William Gillanders, Amy Cyr, Timothy J Eberlein, Tina Hieken, Helen Krontiras, Zhanfang Guo, Michelle V Lee, Nicholas C Spies, Zachary L Skidmore, Obi L Griffith, Malachi Griffith, Shana Thomas, Caroline Bumb, Kiran Vij, Cynthia Huang Bartlett, Maria Koehler, Hussam Al-Kateb, Souzan Sanati, Matthew J Ellis
Purpose: Cyclin-dependent kinase (CDK) 4/6 drives cell proliferation in estrogen receptor-positive (ER(+)) breast cancer. This single-arm phase II neoadjuvant trial (NeoPalAna) assessed the antiproliferative activity of the CDK4/6 inhibitor palbociclib in primary breast cancer as a prelude to adjuvant studies.Experimental Design: Eligible patients with clinical stage II/III ER(+)/HER2(-) breast cancer received anastrozole 1 mg daily for 4 weeks (cycle 0; with goserelin if premenopausal), followed by adding palbociclib (125 mg daily on days 1-21) on cycle 1 day 1 (C1D1) for four 28-day cycles unless C1D15 Ki67 > 10%, in which case patients went off study due to inadequate response...
August 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28240661/molecular-imaging-in-neuroendocrine-differentiation-of-prostate-cancer-68ga-psma-versus-68ga-dota-noc-pet-ct
#9
COMPARATIVE STUDY
Sharjeel Usmani, Najeeb Ahmed, Fahad Marafi, Rashid Rasheed, Henney G Amanguno, Fareeda Al Kandari
We report on a 62-year-old man with metastatic prostate cancer (cT3b N1) diagnosed in 2011, treated with total androgen blockage with flutamide and goserelin acetate (Zoladex). He presented with left suprascapular swelling and low-back pain after being asymptomatic for 5 years. His prostate-specific antigen was 0.049 ng/mL. F-NaF PET-CT and Ga-PSMA scan were negative, whereas Ga-DOTA NOC scan done after 10 days showed multiple somatostatin-avid hepatic and lymph node metastasis.
May 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28239652/estrogens-regulate-glycosylation-of-igg-in-women-and-men
#10
Altan Ercan, Wendy M Kohrt, Jing Cui, Kevin D Deane, Marija Pezer, Elaine W Yu, Jonathan S Hausmann, Harry Campbell, Ursula B Kaiser, Pauline M Rudd, Gordan Lauc, James F Wilson, Joel S Finkelstein, Peter A Nigrovic
The immunologic potency of IgG is modulated by glycosylation, but mechanisms regulating this process are undefined. A role for sex hormones is suggested by differences in IgG glycans between women and men, most prominently with respect to galactose. We therefore assessed IgG galactosylation in 713 healthy adults from 2 cohorts as well as in 159 subjects from 4 randomized controlled studies of endocrine manipulation: postmenopausal women receiving conjugated estrogens, raloxifene, or placebo; premenopausal women deprived of gonadal hormones with leuprolide and treated with estradiol or placebo; men deprived of gonadal hormones with goserelin and given testosterone or placebo; and men deprived of gonadal hormones with goserelin and given testosterone or placebo together with anastrozole to block conversion of testosterone to estradiol...
February 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28220410/an-audit-of-the-use-of-gonadorelin-analogues-to-prevent-recurrent-acute-symptoms-in-patients-with-acute-porphyria-in-the-united-kingdom
#11
Danja Schulenburg-Brand, Tricia Gardiner, Simon Guppy, David C Rees, Penelope Stein, Julian Barth, M Felicity Stewart, Michael Badminton
Severe recurrent acute attacks of porphyria have traditionally been treated with either prophylactic human haemin or gonadorelin analogues (GnA) in females. Evidence on the most effective treatment for this patient subgroup is lacking. This audit surveyed the use of prophylactic GnA in the UK.Twenty female patients (who experienced between 2 and 45 acute attacks of porphyria requiring hospitalisation and treatment with human haemin prior to GnA prophylaxis) were included in the audit. Data was retrospectively collected based on patient history and case review...
February 21, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28101033/maximizing-the-benefit-cost-ratio-of-anthracyclines-in-metastatic-breast-cancer-case-report-of-a-patient-with-a-complete-response-to-high-dose-doxorubicin
#12
Kevin Shee, Alan T Kono, Susan P D'Anna, Mark A Seltzer, Xiaoying Lu, Todd W Miller, Mary D Chamberlin
Despite the clinical efficacy of anthracycline agents such as doxorubicin, dose-limiting cardiac toxicities significantly limit their long-term use. Here, we present the case of a 33-year-old female patient with extensive metastatic ER+/PR+/HER2- mucinous adenocarcinoma of the breast, who was started on doxorubicin/cyclophosphamide therapy after progressing on paclitaxel and ovarian suppressor goserelin with aromatase inhibitor exemestane. The patient was comanaged by cardiology, who carefully monitored measures of cardiac function, including EKGs, serial echocardiograms, and profiling of lipids, troponin, and pro-BNP every 2 months...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27987429/a-reduction-in-long-term-spatial-memory-persists-after-discontinuation-of-peripubertal-gnrh-agonist-treatment-in-sheep
#13
D Hough, M Bellingham, I R Haraldsen, M McLaughlin, J E Robinson, A K Solbakk, N P Evans
Chronic gonadotropin-releasing hormone agonist (GnRHa) administration is used where suppression of hypothalamic-pituitary-gonadal axis activity is beneficial, such as steroid-dependent cancers, early onset gender dysphoria, central precocious puberty and as a reversible contraceptive in veterinary medicine. GnRH receptors, however, are expressed outside the reproductive axis, e.g. brain areas such as the hippocampus which is crucial for learning and memory processes. Previous work, using an ovine model, has demonstrated that long-term spatial memory is reduced in adult rams (45 weeks of age), following peripubertal blockade of GnRH signaling (GnRHa: goserelin acetate), and this was independent of the associated loss of gonadal steroid signaling...
March 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27943566/impact-of-androgen-deprivation-therapy-on-volume-reduction-and-lower-urinary-tract-symptoms-in-patients-with-prostate-cancer
#14
Satoshi Washino, Masaru Hirai, Kimitoshi Saito, Yutaka Kobayashi, Yoshiaki Arai, Tomoaki Miyagawa
OBJECTIVE: To evaluate the impact of androgen deprivation therapy (ADT) on prostate volume, lower urinary tract symptoms (LUTS), and LUTS-related quality of life (QOL) in patients with prostate cancer. METHODS: Patients with prostate cancer (PCa) were treated with goserelin and bicalutamide for 24 weeks. Changes in the total prostate volume (TPV), International Prostate Symptom Score (IPSS), and QOL score for urinary symptoms were assessed every 12 weeks. Of the 42 patients enrolled, 8 patients withdrew and 2 were excluded, so 32 patients were analyzed...
December 12, 2016: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/27900064/enzalutamide-induced-acute-generalized-exanthematous-pustulosis
#15
Chloé Alberto, Maria Polina Konstantinou, Catherine Martinage, Eline Casassa, Emilie Tournier, Haleh Bagheri, Vincent Sibaud, Loïc Mourey, Juliette Mazereeuw-Hautier, Nicolas Meyer, Carle Paul, Cristina Bulai Livideanu
INTRODUCTION: Enzalutamide (Xtandi®) is a new potent inhibitor of the signaling pathway for the androgen receptor with a half-life of 5.8 days. It has been on the market for the treatment of metastatic castration-resistant prostate cancer since November 2013. OBJECTIVE: We report the first case of acute generalized exanthematous pustulosis (AGEP) induced by enzalutamide. OBSERVATION: A 62-year-old male patient with no significant medical history, was diagnosed in April 2014 with metastatic prostatic adenocarcinoma...
November 13, 2016: Journal of Dermatological Case Reports
https://www.readbyqxmd.com/read/27847099/efficacy-of-switching-therapy-of-luteinizing-hormone-releasing-hormone-analogue-for-advanced-prostate-cancer
#16
Yuan-Chi Shen, Chih-Hsiung Kang, Po-Hui Chiang
This study was conducted to determine the efficacy of switching therapy with a second-line luteinizing hormone-releasing hormone (LHRH) analogue after prostate-specific antigen (PSA) progression for advanced prostate cancer. We enrolled 200 patients, from December 2005 to September 2013, with nodal positive, metastatic prostate cancer or disease progression after definite treatment receiving continuous LHRH analogue therapy with monthly depot leuprorelin(sc) acetate 3.75 mg/vial (LA) or goserelin acetate(sc) 3...
November 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27798900/what-characterizes-long-term-survivors-of-recurrent-ovarian-cancer-case-report-and-review-of-the-literature
#17
REVIEW
Ziad Hilal, Beate Schultheis, Franziska Hartmann, Askin Dogan, Cem Cetin, Harald Krentel, Sven Schiermeier, Clemens B Tempfer
BACKGROUND: Women with recurrent ovarian cancer have a poor prognosis and short survival. However, some women are long-term survivors and it is unclear whether they share specific common characteristics. CASE REPORT: We present the case of a 63-year-old woman with histologically-proven recurrent ovarian cancer and a survival time of 16 years after the diagnosis of recurrence. She underwent initial debulking surgery in 1994, followed by 6 cycles of adjuvant chemotherapy with cisplatin and paclitaxel...
2016: Anticancer Research
https://www.readbyqxmd.com/read/27697675/goserelin-plus-tamoxifen-compared-to-chemotherapy-followed-by-tamoxifen-in-premenopausal-patients-with-early-stage-lymph-node-negative-breast-cancer-of-luminal-a-subtype
#18
COMPARATIVE STUDY
Mansoor Alramadhan, Jai Min Ryu, Musaed Rayzah, Seok Jin Nam, Seok Won Kim, Jonghan Yu, Se Kyung Lee, Soo Youn Bae, Sungmin Park, Hyun-June Paik, Jeong Eon Lee
OBJECTIVES: To study the outcomes of adjuvant goserelin combined with tamoxifen (GosTam) compared to chemotherapy followed by tamoxifen (ChemTam) in premenopausal patients with early stage, luminal A breast cancer. METHODS: From 2008 until 2013, data were retrospectively collected for premenopausal patients who underwent surgery for invasive tumors that were ≤2.0 cm, node-negative, strongly positive for estrogen and progesterone receptors, HER-2-negative, and Ki-67 < 25%...
December 2016: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/27679555/elevated-levels-of-autophagy-related-marker-ulk1-and-mitochondrion-associated-autophagy-inhibitor-lrpprc-are-associated-with-biochemical-progression-and-overall-survival-after-androgen-deprivation-therapy-in-patients-with-metastatic-prostate-cancer
#19
Hong-Yi Zhang, Ya-Dong Ma, Ye Zhang, Jie Cui, Zi-Ming Wang
AIM: To evaluate the expression levels and prognostic significance of autophagy-related markers, UNC-51-like kinase1 (ULK1), Beclin1, microtubule-associated protein light chain 3 (LC3), autophagy-related gene 5 (ATG5) and mitochondrion-associated autophagy inhibitor, LRPPRC, in patients with metastatic prostate cancer (PCa) after androgen deprivation therapy (ADT). METHODS: Expressions of ULK1, Beclin1, LC3, ATG5 and LRPPRC were assessed by immunohistochemical examination in 198 patients with metastatic PCa who were receiving ADT (goserelin and bicalutamide)...
May 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27649641/pharmacologically-induced-sex-hormone-fluctuation-effects-on-resting-state-functional-connectivity-in-a-risk-model-for-depression-a-randomized-trial
#20
Patrick MacDonald Fisher, Camilla Borgsted Larsen, Vincent Beliveau, Susanne Henningsson, Anja Pinborg, Klaus Kähler Holst, Peter Steen Jensen, Claus Svarer, Hartwig Roman Siebner, Gitte Moos Knudsen, Vibe Gedsoe Frokjaer
Women are at relatively greater lifetime risk for depression than men. This elevated risk in women is partly due to heightened risk during time periods characterized by marked fluctuations in sex hormones, including postpartum and perimenopausal periods. How sex hormone fluctuations contribute to heightened risk is not fully understood but may involve intrinsic functional connectivity. We induced a biphasic ovarian sex hormone fluctuation using the gonadotropin-releasing hormone agonist (GnRHa) goserelin to determine, with a randomized placebo-controlled design, intervention effects on or GnRHa-provoked depressive symptoms associations with change in resting-state functional connectivity (rs-FC) in 58 healthy women for six seeds (amygdala, hippocampus, anterior cingulate cortex, dorsal raphe, median raphe, and posterior cingulate cortex)...
January 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
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