Dat Nguyen

Dat Nguyen

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25
Publications
6,400
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731
Citations
Citations since 2017
3 Research Items
449 Citations
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2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080

Publications

Publications (25)
Article
Background: Hypokalemia (K+ level <3.5 mEq/L) is common in patients with hypercortisolism. Treatment with mifepristone, a glucocorticoid receptor antagonist, can exacerbate hypokalemia due to the mineralocorticoid effects produced by the rapid and significant increase in cortisol levels that result from the loss of negative feedback of the HPA axis...
Article
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Background: Glucocorticoid receptor (GR) activity plays a role in many aspects of human physiology and may play a crucial role in chemotherapy resistance in a wide variety of solid tumors. A novel immunohistochemistry (IHC) based assay has been previously developed and validated in order to assess GR immunoreactivity in triple-negative breast canc...
Article
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Context Adrenal insufficiency (AI) is an important medical concern for clinicians when normocortisolemia is achieved during treatment of endogenous Cushing syndrome (CS). Objective To examine symptoms of potential AI in a large population of normocortisolemic patients without CS treated with mifepristone, a glucocorticoid receptor antagonist indic...
Article
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Glucocorticoids (GCs) are involved in a large number of the physiological changes associated with metabolic syndrome and certain psychiatric illness. Although significance is often given to the concentration of GC, its biological action is determined by the activation of intracellular GC receptors (GR). Genetic polymorphisms of the GR and the large...
Article
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Background: Overweight and obesity are common among patients with Cushing's syndrome (CS) and may persist in some patients even after ostensibly curative surgery, contributing to cardiometabolic dysfunction and increased cardiovascular risk. Mifepristone, a selective glucocorticoid receptor antagonist, was effective in controlling hyperglycemia in...
Article
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Background: Glucocorticoid receptor (GR) activity has been associated with chemotherapy resistance and poor outcomes in patients with triple negative breast cancer (TNBC). The aim of this study was to develop an immunohistochemistry (IHC) assay to assess GR expression in archival formalin-fixed, paraffin-embedded human invasive breast carcinoma sa...
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To examine the relationship between dose, clinical response (based on independent evaluation of metabolic, physical, neurological, and social assessments), and safety of mifepristone treatment in patients with endogenous Cushing's syndrome (CS). This post-hoc analysis included 40 clinical responders and 50 participants who received a dose of mifepr...
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Full-text available
Collagenase Clostridium histolyticum (CCH) injection is a nonoperative treatment of hand contractures from Dupuytren disease. This study assessed the efficacy and safety of CCH in several subgroups of patients with increased surgical risk.Data were pooled from 3 randomized, placebo-controlled, double-blind trials. This analysis included 271 patient...
Article
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Among patients with hypogonadism-associated comorbidities, opioid users have the highest incidence of hypogonadism. Data from the Testim Registry in the United States were analyzed to determine the efficacy of testosterone replacement therapy in opioid users vs nonusers. Prospective, 12-month observational cohort registry. Hypogonadal men (N = 849)...
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To determine the effect of long-term testosterone replacement therapy (TRT) on depression symptoms in hypogonadal men. Data were from TRiUS, a multicenter, 12-month observational registry (N = 849) of hypogonadal men prescribed 1% testosterone gel. Measures including total testosterone (TT) were assessed at baseline and months 3, 6, and 12. Depress...
Article
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Background: Recent evidence suggests that there may be a bidirectional, physiological link between hypogonadism and metabolic syndrome (MetS), and testosterone replacement therapy (TRT) has been shown to improve some symptoms of MetS in small patient populations. We examined the effect of 12 months of TRT on MetS components in a large cohort of hy...
Data
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Based on responses to particular items, not all respondents were asked all questions, according to skip patterns. Additionally, some of the questions may have looped back based on number of symptoms/doctors reported, etc.
Article
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Purpose. To estimate the US prevalence of Peyronie's disease (PD) from patient-reported data and to identify diagnosis and treatment patterns. Methods. 11,420 US males ≥18 years old completed a brief web-based survey regarding the presence of PD, past treatments, and penile symptoms (Phase 1). Phase 1 respondents with PD diagnosis, history of trea...
Article
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We measured prostate specific antigen after 12 months of testosterone replacement therapy in hypogonadal men. Data were collected from the TRiUS (Testim® Registry in the United States), an observational registry of hypogonadal men on testosterone replacement therapy (849). Participants were Testim naïve, had no prostate cancer and received 5 to 10...
Article
Full-text available
Up to 30% of erectile dysfunction (ED) patients treated with phosphodiesterase type 5 (PDE5) inhibitors do not show improved sexual function, which may be due in part to low serum testosterone. Hypogonadal patients already receiving testosterone replacement therapy (TRT) likewise can still suffer from symptoms of sexual dysfunction. In these patien...
Article
Full-text available
This large population-based study was conducted to estimate the prevalence of Dupuytren's disease in US adults and describe associated treatment patterns. A total of 23,103 individuals from an Internet-based research panel representative of the US population completed a brief online survey designed to identify individuals with symptoms, diagnoses,...
Article
Full-text available
Purpose: We measured prostate specific antigen after 12 months of testosterone replacement therapy in hypogonadal men. Materials and Methods: Data were collected from the TRiUS (Testim® Registry in the United States), an observational registry of hypogonadal men on testosterone replacement therapy (849). Participants were Testim naïve, had no prost...
Article
Full-text available
Objective: To determine the effect of long-term testosterone replacement therapy (TRT) on depression symptoms in hypogonadal men. Methods: Data were from TRiUS, a multicenter, 12-month observational registry (N = 849) of hypogonadal men prescribed 1% testosterone gel. Measures including total testosterone (TT) were assessed at baseline and months 3...

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Projects (4)