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The association between sexual function and prostate cancer risk in US veterans

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Asian journal of Andrology 2017年第2期19卷 191-195页

作者： Daniel F Zapata Lauren E Howard jennifer Frank Ross M Simon Cathrine Hoyo Delores j Grant stephen j freedland Adriana C Vidal Duke University Medical Center Division of Urology Department of Surgery Durham NC 27710 USA Durham Veterans Affairs Medical Center Urology Division Durham NC 27710 USA North Carolina State University Department of Biology Raleigh NC 27695 USA North Carolina Central University Department of Biology Durham NC 27707 USA Department of Surgery Division of Urology Samuel Oschin Comprehensive Cancer institute Cedars-Sinai Medical Center Los Angeles California 90048 USA

Sexual dysfunction and prostate cancer are common among older men. Few studies explored the association between these two illnesses. We examined whether sexual function is associated with prostate cancer risk among older men. Among 448 men undergoing prostate biopsy at the Durham Veterans Affairs Hospital, sexual function was ascertained from the Expanded Prostate Cancer Index Composite sexual assessment. We tested the link between sexual function and prostate cancer risk adjusting for multiple demographic and clinical characteristics using logistic regression. Multinomial logistic regression was used to test the associations with risk of low-grade （Gleason 〈6） and high-grade （Gleason 〉7 or 〉4 ＋ 3） disease versus no cancer. Of 448 men, 209 （47%） had a positive biopsy; these men were less likely to be white （43% vs 55%, P=0.013）, had higher prostate-specific antigen （PSA）（6.0 vs 5.4 ng ml-1, P 〈 0.001）, but with lower mean sexual function score （47 vs 54, P = 0.007）. There was no difference in age, BMI, pack years smoked, history of heart disease and/or diabetes. After adjusting for baseline differences, sexual function was linked with a decreased risk of overall prostate cancer risk （OR. 0.91 per lO-point change in sexual function, P= 0.004） and high-grade disease whether defined as Gleason ≥7 （OR： 0.86, P= 0.001） or 〉4 ＋ 3 （OR： 0.85, P= 0.009）. Sexual function was unrelated to low-grade prostate cancer （OR： 0.94, P = 0.13）. Thus, among men undergoing prostate biopsy, higher sexual function was associated with a decreased risk of overall and high-grade prostate cancer. Confirmatory studies are needed.

关键词： erectile dysfunction prostate prostate cancer risk sexual function

Re： Commentary on ＂The association between sexual function and prostate cancer risk in US veterans＂

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Asian journal of Andrology 2018年第1期20卷 100-100页

作者： Adriana C Vidal stephen j freedland Department of Surgery Cedars-Sinai Medical Center Samuel Oschin CancerInstitute Los Angeles CA 90048 USA

Dear Editor, Kai Wang and Linda B Cottler recently commented on our article entitled, ＂The association between sexual function and prostate cancer risk in US veterans＂ published in Asian journal *** made the good point that sexual function could be a clinical symptom of low serum testosterone, and that men with low testosterone may be using testosterone replacement therapy （TRT） which could be confounding the associations between sexual function and prostate cancer risk.

关键词： cancer risk replacement therapy

Practice patterns and outcomes of equivocal bone scans for patients with castration-resistant prostate cancer: Results from SEARCH

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Asian journal of Urology 2019年第3期6卷 242-248页

作者： Brian T.Hanyok Mary M.Everist Lauren E.Howard Amanda M.De Hoedt William j.Aronson Matthew R.Cooperberg Christopher j.Kane Christopher L.Amling Martha K.Terris stephen j.freedland Urology Section Department of SurgeryVeterans Affairs Medical CenterDurhamNCUSA New York Medical College ValhallaNYUSA Department of Biostatistics and Bioinformatics Duke University School of MedicineDurhamNCUSA Urology Section Department of SurgeryVeterans Affairs Medical CenterGreater Los AngelesLos AngelesCAUSA Department of Urology University of California at Los Angeles Medical CenterLos AngelesCAUSA Departments ofUrology and Epidemiology&Biostatistics University of CaliforniaSan FranciscoCAUSA Urology Section Department of SurgeryVeterans Affairs Medical CenterSan FranciscoCAUSA Division of Urology Department of SurgeryUniversity of California at San Diego Medical CenterSan DiegoCAUSA Division of Urology Department of SurgeryOregon Health&Science UniversityPortlandORUSA Urology Section Division of SurgeryVeterans Affairs Medical CenterAugustaGAUSA Division of Urologic Surgery Department of SurgeryMedical College of GeorgiaAugustaGAUSA Division of Urology Department of SurgerySamuel Oschin Comprehensive Cancer InstituteCedars-Sinai Medical CenterLos AngelesCAUSA Center for Integrated Research in Cancer and Lifestyle Samuel Oschin Comprehensive Cancer InstituteCedars-Sinai Medical CenterLos AngelesCAUSA

Objective:To review follow-up imaging after equivocal bone scans in men with castration resistant prostate cancer(CRPC)and examine the characteristics of equivocal bone scans that are associated with positive follow-up ***:We identified 639 men from five Veterans Affairs Hospitals with a technetium-99m bone scan after CRPC diagnosis,of whom 99(15%)had equivocal *** with equivocal scans were segregated into“high-risk”and“low-risk”subcategories based upon wording in the bone scan *** follow-up imaging(bone scans,computed tomography[CT],magnetic resonance imaging[MRI],and X-rays)in the 3 months after the equivocal scan were *** were compared between patients with a positive *** follow-up imaging after an equivocal bone ***:Of 99 men with an equivocal bone scan,43(43%)received at least one follow-up imaging test,including 32/82(39%)with low-risk scans and 11/17(65%)with high-risk scans(p=0.052).Of follow-up tests,67%were negative,14%were equivocal,and 19%were *** those who underwent follow-up imaging,3/32(9%)low-risk men had metastases vs.5/11(45%)high-risk men(p=0.015).Conclusion:While 19%of all men who received follow-up imaging had positive follow-up imaging,only 9%of those with a low-risk equivocal bone scan had metastases versus 45%of those with *** preliminary findings,if confirmed in larger studies,suggest follow-up imaging tests for low-risk equivocal scans can be delayed while high-risk equivocal scans should receive follow-up imaging.

关键词： Castration-resistant prostate cancer Equivocal test result Bone scan Radiology report Follow-up imaging Neoplasm metastasis

Epithelial-mesenchymal transition in prostate cancer： providing new targets for therapy

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Asian journal of Andrology 2011年第2期13卷 179-180页

作者： Andrew j Armstrong stephen，freedland Mariano Garcia-Blanco Duke Cancer Institute Departments of Medicine and Surgery Duke Prostate Center Duke University Durham NC 27710 USA Section of Urology Durham VA Medical Center Duke Prostate Center Division of Urologic Surgery Departments of Surgery and Pathology Duke University Medical Center Durham NC 27710 USA Department of Molecular Genetics and Microbiology Department ol Medicine Center for RNA Biology Duke Universit＇ Medical Center NC 27710 USA

The ability of epithelial cells to undergo phenotypic transitions during embryo-genesis, wound healing and malignant pro- gression is now widely accepted as a core biological process termed epithelialmesenchymal transition （EMT）. During cancer progression, the process of EMT has been associated with the acquisition of stemness properties, treatment resistance and metastatic progression, hallmarks of malig- nancy.

关键词： Cells Lymphocytes Associations Cancer (genus) Neoplasms Processing Models Crossing over Proteins Castration

Combining Aluminum Heat Treat with Hot Isostatic Pressing: A Comparison of Structure, Properties, and Processing Routes for a Cast AI-Si-Mg Alloy

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材料热处理学报 2004年第5期25卷 546-551页

作者： stephen j. Mashl Body cote HIP Inc. Andover Massachusetts USA

Bodycote researchers have successfully demonstrated that a T6 heat treatment can be integrated with Densal?, a proprietary, aluminum specific, hot isostatic pressing (HIP) process. In this combined operation, at least a portion of the solution heat treatment is conducted at elevated pressure. During development, two issues, adiabatic cooling during depressurization and a possible variation in the kinetics of homogenization resulting from conducting the solution heat treat at elevated pressure were perceived as factors which could alter the heat treat response from that seen in conventional processing. This paper reviews the results of experiments performed to Al-Si-Mg (A356.0) castings subjected to both combined and conventional processing routes. Results indicate that the combined HIP and heat treat process is an efficient means of achieving a microstructure characteristic of a conventionally T6 processed material while eliminating porosity within the casting. Further, the fatigue life of an A356.0 casting processed using the combined cycle can be improved by more than an order of magnitude over the as-cast and T6 treated component.

关键词： Al-Si-Mg合金热处理热等静压缩 HIP 机械性质疲劳寿命

A relational database of global U-Pb ages

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Geoscience Frontiers 2018年第3期9卷 877-891页

作者： stephen j.Puetz Progressive Science Institute HonoluluHI 96815USA

Enhanced understanding of how sampling techniques affect estimates of the global U-Pb age-distribution have, in turn, constrained U-Pb database design. Recent studies indicate that each continent has a unique age-distribution, as determined by zircon ages dated by the U-Pb isotope method. Likewise, broad regions within a continent also exhibit diverse age-distributions. To achieve a reliable estimate of the global distribution, the heterogenous composition of the continental crust requires sampling as many regions as feasibly possible. To attain this goal, and to provide a method for calculating age histograms, the records from a recent global U-Pb compilation are supplemented with 281,631 new records. These additions increase the database size to 700,598 records. In addition, the data are now restructured and made available as a relational database. After filtering the records by the six age-models included with the database, the results reveal two problems that might generally be unrecognized. First, an abrupt switch in the best-age at any given point(such as 1000 Ma) from ^(206)Pb/^(238)U ages to ^(207)Pb/^(206)Pb ages artificially depresses the age-distribution at the cutoff point. Second, rejecting analyses based on either absolute discordance or the magnitude of 2σ precision errors artificially depresses the age-distribution between 900 Ma and 2000 Ma. The results indicate that, when estimating the global U-Pb age-distribution, the methods for determining best-age and for rejecting records both require some attention. Possible solutions include using either an Accuracy Model or a Precision Model for estimating best-age, and then including all U-Pb records in the estimate, rather than rejecting any of them.

关键词： U-Pb age-distribution Histogram Global database Sampling Filtering Zircon

Apples to oranges:environmentally derived,dynamic regulation of serotonin neuron subpopulations in adulthood?

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Neural Regeneration Research 2025年第9期20卷 2596-2597页

作者： Christopher j.O’Connell Matthew j.Robson Department of Genetics College of MedicineHarvard UniversityBostonMAUSA james L.Winkle College of Pharmacy Division of Pharmaceutical SciencesUniversity of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program College of MedicineUniversity of CincinnatiCincinnatiOHUSA

Traumatic brain injury(TBI)is a public health problem with an undue economic burden that impacts nearly every age,ethnic,and gender group across the globe(Capizzi et al.,2020).TBIs are often sustained during a dynamic range of exposures to energetic environmental forces and as such outcomes are typically heterogeneous regarding severity and pathology(Capizzi et al.,2020).

关键词： sustained orange dynamic

Temporal dynamics of neonatal hypoxic-ischemic encephalopathy injuries on magnetic resonance imaging

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Neural Regeneration Research 2025年第11期20卷 3144-3150页

作者： Holly Flyger Samantha j.Holdsworth Alistair j.Gunn Laura Bennet Hamid Abbasi Mātai Medical Research Institute Tairāwhiti GisborneNew Zealand Department of Anatomy&Medical Imaging Faculty of Medical and Health SciencesThe University of AucklandAucklandNew Zealand Center for Brain Research The University of AucklandAucklandNew Zealand Auckland Bioengineering Institute The University of AucklandAucklandNew Zealand

Moderate to severe perinatal hypoxic-ischemic encephalopathy occurs in~1 to 3/1000 live births in high-income countries and is associated with a significant risk of death or neurodevelopmental *** assessment is important to help identify highrisk infants,to help families,and to support appropriate interventions.A wide range of monitoring tools is available to assess changes over time,including urine and blood biomarkers,neurological examination,and *** present,magnetic resonance imaging is unique as although it is expensive and not suited to monitoring the early evolution of hypoxic-ischemic encephalopathy by a week of life it can provide direct insight into the anatomical changes in the brain after hypoxic-ischemic encephalopathy and so offers strong prognostic information on the long-term outcome after hypoxic-ischemic *** review investigated the temporal dynamics of neonatal hypoxic-ischemic encephalopathy injuries,with a particular emphasis on exploring the correlation between the prognostic implications of magnetic resonance imaging scans in the first week of life and their relationship to long-term outcome prediction,particularly for infants treated with therapeutic hypothermia.A comprehensive literature search,from 2016 to 2024,identified 20 pertinent *** review highlights that while the optimal timing of magnetic resonance imaging scans is not clear,overall,it suggests that magnetic resonance imaging within the first week of life provides strong prognostic *** challenges limit the timing consistency,particularly the need for intensive care and clinical ***,although most reports examined the prognostic value of scans taken between 4 and 10 days after birth,there is evidence from small numbers of cases that,at times,brain injury may continue to evolve for weeks after *** suggests that in the future it will be important to explore a wider range of times after hypo

关键词： magnetic resonance imaging neonatal hypoxic-ischemic encephalopathy neurodevelopmental outcomes prognostic biomarkers in neuroimaging scan timing therapeutic hypothermia

Tumor ablation with nanosecond pulsed electric fields

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Hepatobiliary & Pancreatic Diseases International 2012年第2期11卷 122-124页

作者： stephen j Beebe Frank Reidy Research Center for Bioelectrics Old Dominion University Norfolk VA 23508 USA

Liver cancer is one of the most malignant cancers. It is reported that 600 000 patients died from liver cancer every year. [1,2] Hepatocellular carcinoma (HCC) is a particular problem because symptoms are not evident until the disease has progressed and hepatitis B, which is prominent specific regions of Asia, is a common precursor of the disease. There are many liver cancer

关键词： HCC cell Tumor ablation with nanosecond pulsed electric fields