1.Clinical experience in 36 cases of using of the extended translabyrinthine technique for the treatment of large acoustic neuromas.
Michael C F TONG ; Joseph M K LAM ; Bao-Hua HU ; Mario SANNA
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(9):705-707
Adolescent
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Adult
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Female
;
Fenestration, Labyrinth
;
methods
;
Humans
;
Male
;
Middle Aged
;
Neuroma, Acoustic
;
surgery
;
Young Adult
2.Presence of extensive intraductal component in patients undergoing breast conservative surgery predicts presence of residual disease in subsequent completion mastectomy.
Christopher C P YIU ; Wings T Y LOO ; C K LAM ; Louis W C CHOW
Chinese Medical Journal 2009;122(8):900-905
BACKGROUNDLocal recurrence remains a serious problem among patients undergoing breast conservative surgery. This study aimed at identifying risk factors for residual disease after breast conservative surgery.
METHODSThis retrospective study was based on patients with invasive breast cancer who have received breast conservative surgery and subsequent completion mastectomy. All patients had a clear resection margin in the initial operation. We analyzed the association between the presence of residual disease during completion mastectomy and the following risk factors: T staging, young age, and presence of extensive intraductal component (EIC), a close margin, lymphovascular permeation (LVP), positivity of estrogen receptor, progesterone receptor, and c-erbB-2.
RESULTSResidual disease was encountered in 21 (45.7%) of 46 patients; EIC was present in 28 patients (60.9%), of whom 17 had residual disease. Presence of EIC during breast conservation surgery was associated with a higher risk of residual disease during completion mastectomy (P = 0.011). Other variables were not statistically significant risk factors for presence of residual disease. No local recurrence was recorded in our cohort, and the disease-free survival and overall survival after completion mastectomy were similar for patients who had residual disease and those who had not.
CONCLUSIONSThe presence of EIC is a significant risk factor for residual disease in patients after breast conservative surgery. Our findings may suggest the indicated value of completion mastectomy in patients with EIC during initial breast conservative surgery to decrease the risk of subsequent local failure.
Adult ; Age Factors ; Aged ; Aged, 80 and over ; Breast Neoplasms ; surgery ; Carcinoma, Intraductal, Noninfiltrating ; complications ; Disease-Free Survival ; Female ; Humans ; Mastectomy ; Mastectomy, Segmental ; Middle Aged ; Neoplasm, Residual ; pathology ; surgery ; Retrospective Studies ; Risk Factors
3.Updates on the surgical management of paediatric cataract with primary intraocular lens implantation.
Dorothy S P FAN ; Wilson W K YIP ; Christopher B O YU ; Srinivas K RAO ; Dennis S C LAM
Annals of the Academy of Medicine, Singapore 2006;35(8):564-570
With the advent of modern surgical techniques, paediatric cataract has become much more manageable. Intraocular lens (IOL) implantation is the standard of care for patients over the age of 2 years. The use of IOL in young infants is still controversial. In addition, there are still unresolved issues, such as the minimum age at which IOL can be safely implanted, IOL power selection and IOL power calculation. The current trends in the management of the above challenges are discussed. Although numerous reports on the prevention and management of posterior capsule opacification have been published, there are ongoing intensive debates and research. Long-term postoperative complications like glaucoma and rhegmatogenous retinal detachment are problems that cannot be overemphasised and these issues are also reviewed.
Cataract
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congenital
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Cataract Extraction
;
adverse effects
;
methods
;
Child
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Child, Preschool
;
Humans
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Infant
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Infant, Newborn
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Lens Implantation, Intraocular
;
adverse effects
;
methods
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Lenses, Intraocular
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Postoperative Complications
;
prevention & control
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Refraction, Ocular
4.Infection Risks Faced by Public Health Laboratory Services Teams When Handling Specimens Associated With Coronavirus Disease 2019 (COVID-19)
Chun-Kwan WONG ; Dominic N.-C. TSANG ; Rickjason C.-W. CHAN ; Edman T.-K. LAM ; Kwok-Kwan JONG
Safety and Health at Work 2020;11(3):372-377
Infection risks of handling specimens associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by public health laboratory services teams were assessed to scrutinize the potential hazards arising from the work procedures. Through risk assessments of all work sequences, laboratory equipment, and workplace environments, no aerosol-generating procedures could be identified except the procedures (mixing and transfer steps) inside biological safety cabinets. Appropriate personal protective equipment (PPE) such as surgical masks, protective gowns, face shields/safety goggles, and disposable gloves, together with pertinent safety training, was provided for laboratory work. Proper disinfection and good hand hygiene practices could minimize the probability of SARS-CoV-2 infection at work. All residual risk levels of the potential hazards identified were within the acceptable level. Contamination by gloved hands was considered as a major exposure route for SARS-CoV-2 when compared with eye protection equipment. Competence in proper donning and doffing of PPE accompanied by hand washing techniques was of utmost importance for infection control.
5.Establishing a blueprint for nature-based products development and conservation for the Philippines.
Hilton Y. LAM ; Maria Luisa D. ENRIQUEZ ; Francisco M. HERALDE III ; Monet M. LOQUIAS ; Marco Nemesio E. MONTAÑ ; O ; Josephine D. AGAPITO ; Andrew K. ARRIOLA ; Lourdes J. CRUZ ; Isidro C. SIA ; Kent Jason G. CHENG ; Carissa May D. ENRIQUEZ ; Hanaih N. MAROHOMSALIC ; Jean Ramon D. YAP
Acta Medica Philippina 2018;52(4):295-301
BACKGROUND: Many of the leading causes of mortality and morbidity in the Philippines are controllable with nature-based products, either as agents of intervention, or prevention, as nutritional supplements or for the control of side-effects of medications. The different R&D programs on nature-based products in the Philippines are usually conducted in isolation, or through silos. These often lead to products that are shortsighted, duplicate products, or products with minimal innovation, not readily applicable to population and environmental sustainability.
OBJECTIVE: The study aimed to draft an internationally benchmarked and integrated blueprint for a population health and environmental health-led nature-based product development and conservation for the Philippines.
METHODS: The methodology consisted of a review of literature; regional educational visits; and a series of consultative meetings with stakeholders.
RESULTS: The study resulted in a stakeholder-validated blueprint that assigns the Philippine Institute of Traditional and Alternative Health Care (PITAHC) to lead the way for Filipinos to produce more nature-based products that are of international quality and attuned with local health needs. The blueprint has identified "9 Optimizations" in the realization of this aspiration, including an expanded role for PITAHC, a national database, an ethical researchers list, and to produce at least five commercial products and 20 intellectual property rights within 5 years with an estimated total investment of approximately PhP 816 M.
Patents
6.DPHL:A DIA Pan-human Protein Mass Spectrometry Library for Robust Biomarker Discovery
Zhu TIANSHENG ; Zhu YI ; Xuan YUE ; Gao HUANHUAN ; Cai XUE ; Piersma R. SANDER ; Pham V. THANG ; Schelfhorst TIM ; Haas R.G.D. RICHARD ; Bijnsdorp V. IRENE ; Sun RUI ; Yue LIANG ; Ruan GUAN ; Zhang QIUSHI ; Hu MO ; Zhou YUE ; Winan J. Van Houdt ; Tessa Y.S. Le Large ; Cloos JACQUELINE ; Wojtuszkiewicz ANNA ; Koppers-Lalic DANIJELA ; B(o)ttger FRANZISKA ; Scheepbouwer CHANTAL ; Brakenhoff H. RUUD ; Geert J.L.H. van Leenders ; Ijzermans N.M. JAN ; Martens W.M. JOHN ; Steenbergen D.M. RENSKE ; Grieken C. NICOLE ; Selvarajan SATHIYAMOORTHY ; Mantoo SANGEETA ; Lee S. SZE ; Yeow J.Y. SERENE ; Alkaff M.F. SYED ; Xiang NAN ; Sun YAOTING ; Yi XIAO ; Dai SHAOZHENG ; Liu WEI ; Lu TIAN ; Wu ZHICHENG ; Liang XIAO ; Wang MAN ; Shao YINGKUAN ; Zheng XI ; Xu KAILUN ; Yang QIN ; Meng YIFAN ; Lu CONG ; Zhu JIANG ; Zheng JIN'E ; Wang BO ; Lou SAI ; Dai YIBEI ; Xu CHAO ; Yu CHENHUAN ; Ying HUAZHONG ; Lim K. TONY ; Wu JIANMIN ; Gao XIAOFEI ; Luan ZHONGZHI ; Teng XIAODONG ; Wu PENG ; Huang SHI'ANG ; Tao ZHIHUA ; Iyer G. NARAYANAN ; Zhou SHUIGENG ; Shao WENGUANG ; Lam HENRY ; Ma DING ; Ji JIAFU ; Kon L. OI ; Zheng SHU ; Aebersold RUEDI ; Jimenez R. CONNIE ; Guo TIANNAN
Genomics, Proteomics & Bioinformatics 2020;18(2):104-119
To address the increasing need for detecting and validating protein biomarkers in clinical specimens, mass spectrometry (MS)-based targeted proteomic techniques, including the selected reaction monitoring (SRM), parallel reaction monitoring (PRM), and massively parallel data-independent acquisition (DIA), have been developed. For optimal performance, they require the fragment ion spectra of targeted peptides as prior knowledge. In this report, we describe a MS pipe-line and spectral resource to support targeted proteomics studies for human tissue samples. To build the spectral resource, we integrated common open-source MS computational tools to assemble a freely accessible computational workflow based on Docker. We then applied the workflow to gen-erate DPHL, a comprehensive DIA pan-human library, from 1096 data-dependent acquisition (DDA) MS raw files for 16 types of cancer samples. This extensive spectral resource was then applied to a proteomic study of 17 prostate cancer (PCa) patients. Thereafter, PRM validation was applied to a larger study of 57 PCa patients and the differential expression of three proteins in prostate tumor was validated. As a second application, the DPHL spectral resource was applied to a study consisting of plasma samples from 19 diffuse large B cell lymphoma (DLBCL) patients and 18 healthy control subjects. Differentially expressed proteins between DLBCL patients and healthy control subjects were detected by DIA-MS and confirmed by PRM. These data demonstrate that the DPHL supports DIA and PRM MS pipelines for robust protein biomarker discovery. DPHL is freely accessible at https://www.iprox.org/page/project.html?id=IPX0001400000.
7.Comprehensive functional annotation of susceptibility variants identifies genetic heterogeneity between lung adenocarcinoma and squamous cell carcinoma.
Na QIN ; Yuancheng LI ; Cheng WANG ; Meng ZHU ; Juncheng DAI ; Tongtong HONG ; Demetrius ALBANES ; Stephen LAM ; Adonina TARDON ; Chu CHEN ; Gary GOODMAN ; Stig E BOJESEN ; Maria Teresa LANDI ; Mattias JOHANSSON ; Angela RISCH ; H-Erich WICHMANN ; Heike BICKEBOLLER ; Gadi RENNERT ; Susanne ARNOLD ; Paul BRENNAN ; John K FIELD ; Sanjay SHETE ; Loic LE MARCHAND ; Olle MELANDER ; Hans BRUNNSTROM ; Geoffrey LIU ; Rayjean J HUNG ; Angeline ANDREW ; Lambertus A KIEMENEY ; Shan ZIENOLDDINY ; Kjell GRANKVIST ; Mikael JOHANSSON ; Neil CAPORASO ; Penella WOLL ; Philip LAZARUS ; Matthew B SCHABATH ; Melinda C ALDRICH ; Victoria L STEVENS ; Guangfu JIN ; David C CHRISTIANI ; Zhibin HU ; Christopher I AMOS ; Hongxia MA ; Hongbing SHEN
Frontiers of Medicine 2021;15(2):275-291
Although genome-wide association studies have identified more than eighty genetic variants associated with non-small cell lung cancer (NSCLC) risk, biological mechanisms of these variants remain largely unknown. By integrating a large-scale genotype data of 15 581 lung adenocarcinoma (AD) cases, 8350 squamous cell carcinoma (SqCC) cases, and 27 355 controls, as well as multiple transcriptome and epigenomic databases, we conducted histology-specific meta-analyses and functional annotations of both reported and novel susceptibility variants. We identified 3064 credible risk variants for NSCLC, which were overrepresented in enhancer-like and promoter-like histone modification peaks as well as DNase I hypersensitive sites. Transcription factor enrichment analysis revealed that USF1 was AD-specific while CREB1 was SqCC-specific. Functional annotation and gene-based analysis implicated 894 target genes, including 274 specifics for AD and 123 for SqCC, which were overrepresented in somatic driver genes (ER = 1.95, P = 0.005). Pathway enrichment analysis and Gene-Set Enrichment Analysis revealed that AD genes were primarily involved in immune-related pathways, while SqCC genes were homologous recombination deficiency related. Our results illustrate the molecular basis of both well-studied and new susceptibility loci of NSCLC, providing not only novel insights into the genetic heterogeneity between AD and SqCC but also a set of plausible gene targets for post-GWAS functional experiments.
Adenocarcinoma of Lung/genetics*
;
Carcinoma, Non-Small-Cell Lung/genetics*
;
Carcinoma, Squamous Cell/genetics*
;
Genetic Heterogeneity
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Genetic Predisposition to Disease
;
Genome-Wide Association Study
;
Humans
;
Lung Neoplasms/genetics*
;
Polymorphism, Single Nucleotide