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9. Survival benefit of radical prostatectomy in patients with advanced TURP-diagnosed prostate cancer: a population-based real-world study

Author

Deng Lin, Le Lin, Liefu Ye, Tao Li, Yongbao Wei, and Lizhi Li

Subjects
Prostate cancer, TURP, Radical prostatectomy, Survival benefit, Elderly, Marching study, Surgery, RD1-811
Abstract

Abstract Objectives A considerable number of patients are diagnosed with prostate cancer (PCa) by transurethral resection of the prostate (TURP). We aimed to evaluate whether radical prostatectomy (RP) brings survival benefits for these patients, especially in the elderly with advanced PCa. Patients and methods We used the Surveillance, Epidemiology, and End Results (SEER) database to obtain PCa cases diagnosed with TURP. After the propensity matching score (PSM) for case matching, univariate, multivariate, and subgroup analyses were performed to investigate whether RP impacts the survival benefit. Results 4,677 cases diagnosed with PCa by TURP from 2010 to 2019 were obtained, including 1,313 RP patients and 3,364 patients with no RP (nRP). 9.6% of RP patients had advanced PCa. With or without PSM, cancer-specific mortality (CSM) and overall mortality (OM) were significantly reduced in the RP patients compared to the nRP patients, even for older (> 75 ys.) patients with advanced stages (all p 0.05). Conclusions Based on this retrospective population-matched study, we first found that in patients diagnosed with PCa by TURP, RP treatment may lead to a survival benefit, especially a reduction in CSM, even in old aged patients (> 75 ys.) with advanced PCa.

Published
2024
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11. Bridge effect on charge transfer and energy transfer in fullerene–chromophore dyads.

Author

Wang, Yu, Luan, Ke, Li, Jiahao, Chen, Zuochang, Deng, Lin-Long, and Yang, Ye

Subjects
PHOTOINDUCED electron transfer, ELECTRON donors, ENERGY transfer, CHARGE transfer, DYADS, CHARGE exchange, EXCITED states
Abstract

Fullerene–chromophore dyads have attracted a great deal of research interest because these complexes can be potentially designed as nanoscale artificial photosynthetic centers, in which the chromophore and fullerene function as the electron donor and acceptor, respectively. The basic operation of this dyad-type artificial reaction center is photoinduced electron transfer from the donor to the acceptor. The fullerene and chromophore are usually covalently linked so that sufficient electronic coupling between these two moieties can facilitate the electron transfer. However, other deactivation pathways for the chromophore excited state, such as energy transfer to the fullerene, may reduce the quantum yield of the photoinduced electron transfer. Here, a series of C60-perylene dyads is exploited to interrogate the effect of the linkage on deactivation mechanisms of the chromophore excited state. For the C60-perylene dyads with a single or double bond bridge, we find that the decay of the singlet state of the chromophore is dominated by the electron transfer, and the corresponding time constant is determined to be 45 ps. On the other hand, for the dyad with a triple bond bridge, the singlet state of the chromophore is quickly quenched through energy transfer to fullerene, and the time constant is as short as 7.9 ps. Our finding suggests that the bond order of the bridge in the fullerene–chromophore dyads can be utilized to control the deactivation pathways of the excited state. [ABSTRACT FROM AUTHOR]

Published
2024
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24. A Contrastive Study of Rhetorical Move Structure of English Medium Instruction Lectures Given by Native English and Chinese Lecturers

Author

Deng, Lin and Wannaruk, Anchalee

Abstract

This study aims to compare the rhetorical move structure of English Medium Instruction (EMI) lectures given by native English and Chinese lecturers. Two specialized corpora were therefore accordingly created with transcripts of twelve science-oriented lectures selected from MICASE and the BASE corpus and twelve science-oriented EMI lectures collected at a Chinese university, respectively. Adopting the Swalesian genre analysis framework, this study examines the moves/steps of EMI lectures in the two corpora. Then, the conventionality and frequency of moves/steps were quantified and analyzed to capture statistical variations. In addition, semi-structured interviews were conducted with four Chinese EMI lecturers to probe into their discursive practices from an emic perspective. Statistical variations were apparent in several moves and steps, which could be mainly attributed to Chinese EMI lecturers' concern for the program quality, dense course syllabus requirements, a lack of specific English for EMI teaching, as well as the emergence and influence of new social media. The study argues for well-targeted teacher training for non-native English lecturers and more teacher autonomy in course syllabus design.

Published
2021

25. Case report: Systemic presentation of ALK-positive Histiocytosis

Author

Yongbao Wei, Ruochen Zhang, Deng Lin, Xiaoyan Chen, Lizhi Li, and Haijian Huang

Subjects
ALK-positive histiocytosis, ALK, male genitourinary system, KIF5B, rare disease, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

ALK-positive Histiocytosis (ALK-HSs) is a recently identified rare clinical entity characterized by tissue histiocytic alterations associated with ALK gene rearrangement. Clinical presentations can be solitary, multifocal, or systemic (involving multiple sites and organs). Due to limited reported cases, there is inadequate understanding of this disease. This report presents a case of ALK-HSs in a 71-year-old male patient who presented with hematuria for one week. Imaging studies conducted at an external hospital showed multiple lesions in the penis, bilateral testes, back skin, and the third lumbar vertebra. Histopathological findings included spindle and histiocytic cell proliferation with mild or indistinct cellular atypia, interstitial infiltration of lymphocytes, plasma cells, foamy histiocytes, and fibrous tissue proliferation. Immunohistochemistry of the lesion cells revealed positivity for CD68, CD163, ALK1, ALK (D5F3), and Vimentin. FISH testing indicated ALK gene separation in the lesion cells. NGS testing identified the fusion genes KIF5B(NM_004521) and ALK(NM_004304) in the lesion cells. We combined the characteristics of this case with a review of the literature to enhance our understanding of this rare clinical entity.

Published
2024
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