Publications by authors named "Adam Sharp"

Purpose: Advanced prostate cancer (PCa) is invariably fatal with the androgen receptor (AR) being a major therapeutic target. AR signaling inhibitors have improved overall survival for men with advanced PCa, but treatment resistance is inevitable and includes reactivation of AR signaling. Novel therapeutic approaches targeting these mechanisms to block tumor growth is an urgent unmet clinical need.

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  • - PARP inhibitors show promise in treating castration-resistant prostate cancer (CRPC) with homologous recombination repair (HRR) defects, but the reasons behind resistance are not completely understood.
  • - A study from the TOPARP-B trial found that 79% of BRCA2/PALB2-mutated tumors exhibited reversion mutations at the end of treatment, with many related to POLQ-mediated DNA repair mechanisms.
  • - In cases of BRCA2 homozygous deletions, rare subclones lacking the BRCA2 deletion are selected for after PARP inhibitor treatment, indicating the necessity for restored HRR function in developing resistance.
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Objective: Opioid overdose is a public health epidemic adversely impacting individuals and communities. To combat this, California passed a law mandating that prescribers offer a naloxone prescription in certain circumstances. Our objective was to evaluate associations with California's naloxone prescription mandate and emergency department (ED) overdose visits/hospitalizations, opioid and naloxone prescribing, and 30-day mortality.

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Despite novel therapeutic strategies, advanced-stage prostate cancer (PCa) remains highly lethal, pointing out the urgent need for effective therapeutic strategies. While dysregulation of the splicing process is considered a cancer hallmark, the role of certain splicing factors remains unknown in PCa. This study focuses on characterizing the levels and role of SRSF6 in this disease.

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  • * BCL2, an anti-apoptotic protein, is upregulated in these aggressive prostate cancers, which presents a potential target for therapy and highlights the importance of studying its expression in metastatic CRPC (mCRPC).
  • * Research shows that BCL2 is more prevalent in AR-negative mCRPC and is linked to poorer survival outcomes; also, its regulation involves DNA methylation and a transcription factor called ASCL1, suggesting the need for combination therapies to improve treatment efficacy.
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Castration resistant prostate cancer (CRPC) remains an incurable disease stage with ineffective treatments options. Here, the androgen receptor (AR) coactivators CBP/p300, which are histone acetyltransferases, were identified as critical mediators of DNA damage repair (DDR) to potentially enhance therapeutic targeting of CRPC. Key findings demonstrate that CBP/p300 expression increases with disease progression and selects for poor prognosis in metastatic disease.

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  • Insects are declining globally, especially in tropical forests, which have high biodiversity but are also experiencing significant biodiversity loss.
  • Most predictions about insect biodiversity rely on well-studied species, leaving many undescribed species unaccounted for, particularly in hyper-diverse tropical environments.
  • A study in Borneo found that 76% of collected staphylinid beetle species were undescribed, showing that these unknown species are more negatively affected by environmental changes caused by logging.
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  • Logged and disturbed forests, often seen as degraded, actually harbor significant biodiversity and should not be dismissed in conservation efforts.
  • A study in Sabah, Malaysia examined the effects of logging intensity on 1,681 species, revealing two important conservation thresholds.
  • Lightly logged forests (less than 29% biomass removed) can recover well, while heavily degraded forests (over 68% biomass removed) may need more intensive recovery efforts, highlighting the varying conservation values of logged forests.
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Continued exploration of the androgen receptor (AR) is crucial, as it plays pivotal roles in diverse diseases such as prostate cancer (PCa), serving as a significant therapeutic focus. Therefore, the Department of Urology Dresden hosted an international meeting for scientists and clinical oncologists to discuss the newest advances in AR research. The 2nd International Androgen Receptor Symposium was held in Dresden, Saxony, Germany, from 26-27.

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  • Older people often have cancer but aren’t included enough in research trials for new treatments.
  • Researchers used a tool called SAOP3 to check the health needs of patients aged 70 and older in a study, and found many had challenges, especially with mobility and thinking.
  • The study showed that screening could help find out what older patients need, which can make their experience in trials safer and better.
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BACKGROUNDClinical trials have suggested antitumor activity from PARP inhibition beyond homologous recombination deficiency (HRD). RNASEH2B loss is unrelated to HRD and preclinically sensitizes to PARP inhibition. The current study reports on RNASEH2B protein loss in advanced prostate cancer and its association with RB1 protein loss, clinical outcome, and clonal dynamics during treatment with PARP inhibition in a prospective clinical trial.

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Castration resistant prostate cancer (CRPC) remains an incurable disease stage with ineffective treatments options. Here, the androgen receptor (AR) coactivators CBP/p300, which are histone acetyltransferases, were identified as critical mediators of DNA damage repair (DDR) to potentially enhance therapeutic targeting of CRPC. Key findings demonstrate that CBP/p300 expression increases with disease progression and selects for poor prognosis in metastatic disease.

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(1) Background: We assessed the test-re-test repeatability of radiomics in metastatic castration-resistant prostate cancer (mCPRC) bone disease on whole-body diffusion-weighted (DWI) and T1-weighted Dixon MRI. (2) Methods: In 10 mCRPC patients, 1.5 T MRI, including DWI and T1-weighted gradient-echo Dixon sequences, was performed twice on the same day.

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Objectives: Diagnostic errors are the leading cause of preventable harm in clinical practice. Implementable tools to quantify and target this problem are needed. To address this gap, we aimed to generalize the Symptom-Disease Pair Analysis of Diagnostic Error (SPADE) framework by developing its computable phenotype and then demonstrated how that schema could be applied in multiple clinical contexts.

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Background: Invasive bacterial infections (IBIs) in febrile infants are rare but potentially devastating. We aimed to derive and validate a predictive model for IBI among febrile infants age 7-60 days.

Methods: Data were abstracted retrospectively from electronic records of 37 emergency departments (EDs) for infants with a measured temperature >=100.

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Therapies that abrogate persistent androgen receptor (AR) signaling in castration-resistant prostate cancer (CRPC) remain an unmet clinical need. The N-terminal domain of the AR that drives transcriptional activity in CRPC remains a challenging therapeutic target. Herein we demonstrate that BCL-2-associated athanogene-1 (BAG-1) mRNA is highly expressed and associates with signaling pathways, including AR signaling, that are implicated in the development and progression of CRPC.

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  • Researchers developed the COVID Hospitalized Patient Deterioration Index (COVID-HDI) to better predict serious health declines in hospitalized COVID-19 patients, improving on an existing model not tailored for respiratory issues related to the virus.
  • The study involved analyzing data from COVID patients at Kaiser Permanente Southern California, applying machine learning techniques and various predictors to create an effective model for identifying high-risk patients.
  • With a high accuracy rate (0.83) and the ability to classify 74% of patients as low-risk during hospitalization, COVID-HDI aids in clinical decisions regarding patient discharge and care escalation.
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  • Patients in the emergency department with chest pain are evaluated for serious heart issues using the HEART score pathway, which includes various clinical factors and troponin testing; a new approach using high-sensitivity troponin may enhance this process.
  • The study aimed to assess health outcomes and resource use in patients using either conventional or high-sensitivity troponin for risk stratification of major cardiac events.
  • Results showed that the high-sensitivity troponin method detected more acute myocardial infarctions within 30 days (5.8%) compared to the conventional method (4.4%), indicating its potential for better risk assessment.
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Inflammation is a hallmark of cancer. In patients with cancer, peripheral blood myeloid expansion, indicated by a high neutrophil-to-lymphocyte ratio, associates with shorter survival and treatment resistance across malignancies and therapeutic modalities. Whether myeloid inflammation drives progression of prostate cancer in humans remain unclear.

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  • * AR-Vs activate androgenic signaling independently and resist existing therapies, highlighting the need for new treatment strategies targeting their function.
  • * The study identifies DNA-PKcs as a crucial element in regulating AR-V activity and suggests that targeting this protein may effectively reduce AR-V signaling in advanced PC, offering a promising therapeutic avenue for resistant cases.
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  • BAG-1L is a key protein that enhances the androgen receptor's function, playing a role in the progression of prostate cancer.
  • Researchers developed a new antibody specific to BAG-1L to study its expression in various prostate cancer stages and breast cancer tissues.
  • Higher BAG-1L levels were found in metastases of castration-resistant prostate cancer compared to untreated cases, but no correlation was found between BAG-1L levels and patient outcomes or responses to treatments, highlighting some limitations in the study's findings.
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Introduction There is considerable variation in the approach to infants presenting to the emergency department (ED) with fever. The authors' primary aim was to develop a robust set of algorithms using community ED data to inform modifications of broader clinical guidance. Methods The authors report the development of California Febrile Infant Risk Stratification Tool (CA FIRST) using key components of the Roseville Protocol (ROS) and American Academy of Pediatrics (AAP) Clinical Practice Guideline (CPG).

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Unlabelled: The pro-oncogenic activities of estrogen receptor alpha (ERα) drive breast cancer pathogenesis. Endocrine therapies that impair the production of estrogen or the action of the ERα are therefore used to prevent primary disease metastasis. Although recent successes with ERα degraders have been reported, there is still the need to develop further ERα antagonists with additional properties for breast cancer therapy.

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Cancer is highly infiltrated by myeloid-derived suppressor cells (MDSCs). Currently available immunotherapies do not completely eradicate MDSCs. Through a genome-wide analysis of the translatome of prostate cancers driven by different genetic alterations, we demonstrate that prostate cancer rewires its secretome at the translational level to recruit MDSCs.

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