21 results on '"Kim Hoang"'
Search Results
2. Better survival is observed in cervical cancer patients positive for specific anti-glycan antibodies and receiving brachytherapy
- Author
-
Manual Alvarez, Peng George Wang, Daron G. Ferris, Richard D. Cummings, Wenbo Zhi, Sharad Purohit, Paul Minh Huy Tran, Boying Dun, Lynn Kim Hoang Tran, Diane Hopkins, John J. Wallbillich, David Mysona, and Jin-Xiong She
- Subjects
Adult ,0301 basic medicine ,Oncology ,medicine.medical_specialty ,Glycan ,medicine.medical_treatment ,Brachytherapy ,External beam radiation ,Uterine Cervical Neoplasms ,Article ,Antibodies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Progression-free survival ,Stage (cooking) ,Glucans ,Aged ,Neoplasm Staging ,Cervical cancer ,biology ,Proportional hazards model ,business.industry ,Age Factors ,Obstetrics and Gynecology ,Middle Aged ,medicine.disease ,Progression-Free Survival ,Survival Rate ,030104 developmental biology ,030220 oncology & carcinogenesis ,biology.protein ,Female ,Antibody ,business - Abstract
OBJECTIVE: To measure anti-glycan antibodies (AGA) in cervical cancer (CC) patient sera and assess their effect on therapeutic outcome. PATIENTS AND METHODS: Serum AGA was measured in 276 stage II and 292 stage III Peruvian CC patients using a high content and throughput Luminex multiplex glycan array (LMGA) containing 177 glycans. Association with disease-specific survival (DSS) and progression free survival (PFS) were analyzed using Cox regression. RESULTS: AGAs were detected against 50 (28.3%) of the 177 glycans assayed. Of the 568 patients, 84.5% received external beam radiation therapy (EBRT) plus brachytherapy (BT), while 15.5% only received EBRT. For stage-matched patients (Stage III), receiving EBRT alone was significantly associated with worse survival (HR 6.4, p < 0.001). Stage III patients have significantly worse survival than Stage II patients after matching for treatment (HR = 2.8 in EBRT+BT treatment group). Furthermore, better PFS and DSS were observed in patients positive for AGA against multiple glycans belonging to the blood group H, Lewis, Ganglio, Isoglobo, lacto and sialylated tetrarose antigens (best HR = 0.49, best p = 0.0008). CONCLUSIONS: Better PFS and DSS are observed in cervical cancer patients that are positive for specific antiglycan antibodies and received brachytherapy.
- Published
- 2020
3. Clinical calculator predictive of chemotherapy benefit in stage 1A uterine papillary serous cancers
- Author
-
Jin-Xiong She, L. Van Le, Bruno Dos Santos, J. Liao, Daniel S. Kapp, Lynn Kim Hoang Tran, Bunja Rungruang, Sharad A. Ghamande, James J. Java, Amandeep Mann, J.K. Chan, Paul Minh Huy Tran, David Mysona, and Paola A. Gehrig
- Subjects
0301 basic medicine ,Oncology ,medicine.medical_specialty ,Lymphovascular invasion ,medicine.medical_treatment ,Machine Learning ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Internal medicine ,medicine ,Humans ,Stage (cooking) ,Lymph node ,Aged ,Neoplasm Staging ,Proportional Hazards Models ,Chemotherapy ,Tumor size ,business.industry ,Reproducibility of Results ,Obstetrics and Gynecology ,Cancer ,Prognosis ,medicine.disease ,Cystadenocarcinoma, Serous ,Nomograms ,Dissection ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Papillary serous ,Uterine Neoplasms ,Cystadenocarcinoma, Papillary ,Female ,business ,Algorithms - Abstract
Determine the utility of a clinical calculator to predict the benefit of chemotherapy in stage IA uterine papillary serous cancer (UPSC).Data were collected from NCDB from years 2010-2014. Based on demographic and surgical characteristics, a clinical score was developed using the random survival forest machine learning algorithm.Of 1,751 patients with stage IA UPSC, 1,012 (58%) received chemotherapy and 739 (42%) did not. Older age (HR 1.06), comorbidities (HR 1.31), larger tumor size (HR 1.27), lymphovascular invasion (HR 1.86), positive peritoneal cytology (HR 2.62), no pelvic lymph node dissection (HR 1.51), and no chemotherapy (HR 2.16) were associated with poorer prognosis. Compared to no chemotherapy, patients who underwent chemotherapy had a 5-year overall survival of 80% vs. 67%. To better delineate those who may derive more benefit from chemotherapy, we designed a clinical calculator capable of dividing patients into low, moderate, and high-risk groups with associated 5-year OS of 86%, 73%, and 53%, respectively. Using the calculator to assess the relative benefit of chemotherapy in each risk group, chemotherapy improved the 5-year OS in the high (42% to 64%; p 0.001) and moderate risk group (66% to 79%; p 0.001) but did not benefit the low risk group (84% to 87%; p = 0.29).Our results suggest a clinical calculator is useful for counseling and personalizing chemotherapy for stage IA UPSC.
- Published
- 2020
4. T1DMicro: A Clinical Risk Calculator for Type 1 Diabetes Related Microvascular Complications
- Author
-
Jin-Xiong She, Paul Minh Huy Tran, John C. Reed, bin Satter Khaled, John C. Morgan, Sharad Purohit, Bruce W. Bode, Jennifer Bryant, Melissa Gardiner, Diane Hopkins, Lynn Kim Hoang Tran, Eileen Kim, and Risa Bernard
- Subjects
medicine.medical_specialty ,complications ,type 1 diabetes ,Health, Toxicology and Mutagenesis ,Article ,Nephropathy ,risk prediction ,Diabetic Neuropathies ,Risk Factors ,Internal medicine ,retinopathy ,medicine ,Humans ,Type 1 diabetes ,Diabetic Retinopathy ,business.industry ,Public Health, Environmental and Occupational Health ,medicine.disease ,Cross-Sectional Studies ,Diabetes Mellitus, Type 1 ,Peripheral neuropathy ,Blood pressure ,Diabetes Mellitus, Type 2 ,peripheral and autonomic neuropathy ,Cohort ,nephropathy ,Medicine ,clinical calculator ,Autonomic neuropathy ,business ,Clinical risk factor ,Retinopathy - Abstract
Development of complications in type 1 diabetes patients can be reduced by modifying risk factors. We used a cross-sectional cohort of 1646 patients diagnosed with type 1 diabetes (T1D) to develop a clinical risk score for diabetic peripheral neuropathy (DPN), autonomic neuropathy (AN), retinopathy (DR), and nephropathy (DN). Of these patients, 199 (12.1%) had DPN, 63 (3.8%) had AN, 244 (14.9%) had DR, and 88 (5.4%) had DN. We selected five variables to include in each of the four microvascular complications risk models: age, age of T1D diagnosis, duration of T1D, and average systolic blood pressure and HbA1C over the last three clinic visits. These variables were selected for their strong evidence of association with diabetic complications in the literature and because they are modifiable risk factors. We found the optimism-corrected R2 and Harrell’s C statistic were 0.39 and 0.87 for DPN, 0.24 and 0.86 for AN, 0.49 and 0.91 for DR, and 0.22 and 0.83 for DN, respectively. This tool was built to help inform patients of their current risk of microvascular complications and to motivate patients to control their HbA1c and systolic blood pressure in order to reduce their risk of these complications.
- Published
- 2021
5. T1DMicro: A Clinical Risk Calculator for Type 1 Diabetes Related Microvascular Complications
- Author
-
Sharad Purohit, Wenbo Zhi, bin Satter Khaled, John C. Reed, John C. Morgan, Lynn Kim Hoang Tran, Jin-Xiong She, Jennifer Bryant, Bruce W. Bode, Shan Bai, Melissa Gardiner, Diane Hopkins, Paul Minh Huy Tran, Risa Bernard, and Eileen Kim
- Subjects
Type 1 diabetes ,medicine.medical_specialty ,business.industry ,medicine.disease ,Nephropathy ,Blood pressure ,Peripheral neuropathy ,Internal medicine ,Cohort ,medicine ,Autonomic neuropathy ,business ,Clinical risk factor ,Retinopathy - Abstract
Development of complications in type-1 diabetes patients can be reduced by modifying risk factors. We used a cross-sectional cohort of 1646 patients diagnosed with type 1 diabetes (T1D) to develop a clinical risk score for diabetic peripheral neuropathy (DPN), autonomic neuropathy (AN), retinopathy (DR), and nephropathy (DN). Of these patients, 199 (12.1%) had DPN, 63 (3.8%) had AN, 244 (14.9%) had DR, and 88 (5.4%) had DN. We selected five variables to include in each of the four microvascular complications risk models: age, age of T1D diagnosis, duration of T1D, and average systolic blood pressure and HbA1C over the last three clinic visits. These variables were selected for their strong evidence of association with diabetic complications in the literature and because they are modifiable risk factors. We found the optimism-corrected R2 and Harrell’s C statistic were 0.39 and 0.87 for DPN, 0.24 and 0.86 for AN, 0.49 and 0.91 for DR, and 0.22 and 0.83 for DN respectively.This tool (https://ptran25.shinyapps.io/Diabetic_Peripheral_Neuropathy_Risk) was built to help inform patients of their current risk of microvascular complications and to motivate patients to control their HbA1c and systolic blood pressure in order to reduce their risk of these complications.
- Published
- 2021
6. Comparative Analysis on Molecular Characteristics of Chromophobe Renal Cancer and Oncocytoma
- Author
-
Sravan Kavuri, Martha K. Terris, Jin-Xiong She, Shan Bai, Sharad Purohit, Paul Minh Huy Tran, Khaled Bin Satter, Lynn Kim Hoang Tran, and Natasha M. Savage
- Subjects
business.industry ,Cancer research ,Medicine ,Cancer ,Unsupervised learning ,Renal cancers ,Oncocytoma ,Chromophobe cell ,Gene signature ,business ,medicine.disease ,oncology_oncogenics - Abstract
Chromophobe renal cell carcinoma (chRCC) and oncocytoma (RO) are renal tumor types originating from alpha intercalated cells of the collecting ducts of the kidney. Both tumor types have similar gross histological morphology and increased mitochondria, which leads to difficulties differentiating between these tumors, especially with core biopsy samples. This study aims to apply a machine learning approach to develop a molecular classifier based on transcriptomics data. Here we generated a meta-data set containing 62 chRCC and 45 RO gene expression arrays. Arrays were subjected to quality control steps, and genes were selected based on differential expression and ROC analysis. The final gene list was evaluated with UMAP based dimension reduction followed by density-based clustering with 95.5% accuracy. Molecular profiling by KEGG pathway analysis identified enrichment of fatty acid oxidation pathway in RO. We finally identified and validated the 30-gene signature, with an accuracy of 94.4% to distinguish chRCC from RO on UMAP analysis. Our results show that chRCC and RO have a distinct gene signature that can differentiate these tumors and complement histology for routine diagnosis of these two tumors.
- Published
- 2021
7. Orchidopexy Results in the Recovery of Sperm in the Ejaculate of a Non-obstructive Azoospermic Adult with Bilateral Cryptorchidism — A Case Report
- Author
-
Georgios Liperis, Van Kim Hoang Tang, Le Dang Khoa, and Huy Quang Duong
- Subjects
Azoospermia ,endocrine system ,030219 obstetrics & reproductive medicine ,lcsh:QH471-489 ,urogenital system ,business.industry ,azoospermia ,030232 urology & nephrology ,Physiology ,medicine.disease ,Sperm ,spermatogenesis ,orchidopexy ,03 medical and health sciences ,0302 clinical medicine ,Bilateral Cryptorchidism ,lcsh:Reproduction ,Medicine ,Abnormality ,business ,cryptorchidism ,Spermatogenesis ,Endocrine gland - Abstract
Cryptorchidism or undescended testis is one of the most common pediatric disorders of the male endocrine glands and the most typical congenital abnormality identified at birth. Bilateral cryptorchidism is frequently associated with azoospermia and male infertility. The standard therapy is the surgical repositioning of the testes (orchidopexy) within the scrotal sac after the age of six months to eighteen months. Current findings suggest that no sperm is recovered in the ejaculate, for patients with bilateral cryptorchidism, when the mean age at the time of orchidopexy is around 16 years and above. Here we report an unusual case of an adult patient with bilateral cryptorchidism and non-obstructive azoospermia for which orchidopexy resulted in the recovery of sperm in the ejaculate, improving his options for future fertility treatment.
- Published
- 2019
8. A combined score of clinical factors and serum proteins can predict time to recurrence in high grade serous ovarian cancer
- Author
-
Adam Pyrzak, Ashok Sharma, Sharad A. Ghamande, Jin-Xiong She, Wenbo Zhi, Paul Minh Huy Tran, Shan Bai, Lynn Kim Hoang Tran, Bunja Rungruang, David Mysona, and Sharad Purohit
- Subjects
0301 basic medicine ,Oncology ,medicine.medical_specialty ,Multivariate statistics ,Multivariate analysis ,Platelet-derived growth factor ,Disease-Free Survival ,Article ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Predictive Value of Tests ,Internal medicine ,medicine ,Serous ovarian cancer ,Humans ,Prospective Studies ,Ovarian Neoplasms ,business.industry ,Univariate ,Obstetrics and Gynecology ,Cytoreduction Surgical Procedures ,Middle Aged ,medicine.disease ,Blood proteins ,Progression-Free Survival ,Cystadenocarcinoma, Serous ,Neoplasm Proteins ,Serous fluid ,030104 developmental biology ,chemistry ,030220 oncology & carcinogenesis ,Female ,Neoplasm Grading ,Neoplasm Recurrence, Local ,business ,Ovarian cancer - Abstract
INTRODUCTION: Ovarian cancer is one of the most lethal neoplasms with 22,000 new cases and 14,000 deaths per year. Aggressive cytoreduction and chemotherapy have response rates as high as 80%. Most women are diagnosed with stage 3 disease or later and over 70% of women recur within 18 months. There is need for a test to determine prognosis of remission patients to allow for intervention and prolonged survival. METHODS AND MATERIALS: Women at Augusta University with ovarian cancer were enrolled between 2005 and 2015 (n=71). Blood was drawn at enrollment and follow-up visits. Patient serum collected at remission was analyzed using the SOMAscan array (n=35) to measure concentrations of 1129 proteins. The best 26 proteins were confirmed using Luminex assays in the same 35 patients and an additional 36 patients (n(total)=71) as orthogonal validation. The data from these proteins was combined with clinical factors using an elastic net multivariate model to find an optimized combination predictive of progression-free survival (PFS). RESULTS: Brain Derived Neurotrophic Factor and Platelet Derived Growth Factor molecules were significant for predicting PFS on univariate and multivariate analyses. The 26 proteins were combined with clinical factors using the elastic net algorithm. Ten components were determined to predict PFS (HR of 6.55, p-value 1.12 × 10(−6), CI 2.57 – 16.71). This model was named the Serous High Grade Ovarian Cancer (SHOC) Score. CONCLUSION: The SHOC score can predict patient prognosis in remission and will hopefully lead to early intervention and consolidation therapy strategies in remission patients destined to recur.
- Published
- 2019
9. Retrospective Validation of a 168-Gene Expression Signature for Glioma Classification on a Single Molecule Counting Platform
- Author
-
Ravindra Kolhe, Bruno Dos Santos, Roni J. Bollag, Sharad Purohit, Khaled Bin Satter, John Nechtman, Paul Minh Huy Tran, Lynn Kim Hoang Tran, Jin-Xiong She, Diane Hopkins, and Suash Sharma
- Subjects
0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,brain cancers ,Biology ,lcsh:RC254-282 ,Article ,Transcriptome ,03 medical and health sciences ,transcriptomics ,0302 clinical medicine ,Glioma ,Internal medicine ,retrospective validation ,Gene expression ,medicine ,single molecule counting ,Gene ,RNA ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,Cell Cycle Gene ,Gene expression profiling ,gliomas ,030104 developmental biology ,030220 oncology & carcinogenesis ,Biomarker (medicine) ,biomarker - Abstract
Gene expression profiling has been shown to be comparable to other molecular methods for glioma classification. We sought to validate a gene-expression based glioma classification method. Formalin-fixed paraffin embedded tissue and flash frozen tissue collected at the Augusta University (AU) Pathology Department between 2000&ndash, 2019 were identified and 2 mm cores were taken. The RNA was extracted from these cores after deparaffinization and bead homogenization. One hundred sixty-eight genes were evaluated in the RNA samples on the nCounter instrument. Forty-eight gliomas were classified using a supervised learning algorithm trained by using data from The Cancer Genome Atlas. An ensemble of 1000 linear support vector models classified 30 glioma samples into TP1 with classification confidence of 0.99. Glioma patients in TP1 group have a poorer survival (HR (95% CI) = 4.5 (1.3&ndash, 15.4), p = 0.005) with median survival time of 12.1 months, compared to non-TP1 groups. Network analysis revealed that cell cycle genes play an important role in distinguishing TP1 from non-TP1 cases and that these genes may play an important role in glioma survival. This could be a good clinical pipeline for molecular classification of gliomas.
- Published
- 2021
10. Comparative analysis of transcriptomic profile, histology, and IDH mutation for classification of gliomas
- Author
-
Khaled Bin Satter, Ravindra Kolhe, John Nechtman, Suash Sharma, Lynn Kim Hoang Tran, Jin-Xiong She, Bruno Dos Santos, Roni J. Bollag, Sharad Purohit, Boying Dun, and Paul Minh Huy Tran
- Subjects
Microarray ,Concordance ,lcsh:Medicine ,Gene Expression ,Computational biology ,Biology ,Astrocytoma ,Article ,Transcriptome ,Text mining ,Glioma ,medicine ,Cancer genomics ,Biomarkers, Tumor ,Humans ,lcsh:Science ,Cell Proliferation ,Neurons ,Multidisciplinary ,business.industry ,Microarray analysis techniques ,Brain Neoplasms ,Gene Expression Profiling ,lcsh:R ,RNA sequencing ,DNA Methylation ,medicine.disease ,Prognosis ,Isocitrate Dehydrogenase ,DNA methylation ,Mutation ,lcsh:Q ,business - Abstract
Gliomas are currently classified through integration of histology and mutation information, with new developments in DNA methylation classification. However, discrepancies exist amongst the major classification methods. This study sought to compare transcriptome-based classification to the established methods. RNAseq and microarray data were obtained for 1032 gliomas from the TCGA and 395 gliomas from REMBRANDT. Data were analyzed using unsupervised and supervised learning and other statistical methods. Global transcriptomic profiles defined four transcriptomic glioma subgroups with 91.4% concordance with the WHO-defined mutation subtypes. Using these subgroups, 168 genes were selected for the development of 1000 linear support vector classifiers (LSVC). Based on plurality voting of 1000 LSVC, the final ensemble classifier confidently classified all but 17 TCGA gliomas to one of the four transcriptomic profile (TP) groups. The classifier was validated using a gene expression microarray dataset. TP1 cases include IDHwt, glioblastoma high immune infiltration and cellular proliferation and poor survival prognosis. TP2a is characterized as IDHmut-codel, oligodendrogliomas with high tumor purity. TP2b tissue is mostly composed of neurons and few infiltrating malignant cells. TP3 exhibit increased NOTCH signaling, are astrocytoma and IDHmut-non-codel. TP groups are highly concordant with both WHO integrated histology and mutation classification as well as methylation-based classification of gliomas. Transcriptomic profiling provides a robust and objective method to classify gliomas with high agreement to the current WHO guidelines and may provide additional survival prediction to the current methods.
- Published
- 2020
11. Senescence-Associated Secretory Phenotype Determines Survival and Therapeutic Response in Cervical Cancer
- Author
-
Manual Alverez, Lynn Kim Hoang Tran, Boying Dun, Sharad A. Ghamande, Wenbo Zhi, Paul Minh Huy Tran, Sharad Purohit, Daron G. Ferris, Bruno Dos Santos, Jin-Xiong She, and Diane Hopkins
- Subjects
Senescence ,Oncology ,Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,Brachytherapy ,Proteomics ,lcsh:RC254-282 ,radiation therapy ,Article ,proteomics ,Internal medicine ,medicine ,gynecologic cancers ,cervical neoplasia ,serum proteins ,Cervical cancer ,Senescence-Associated Secretory Phenotype ,business.industry ,fungi ,biomarkers ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,Phenotype ,Blood proteins ,Radiation therapy ,prognosis ,business - Abstract
Molecular biomarkers that can predict survival and therapeutic outcome are still lacking for cervical cancer. Here we measured a panel of 19 serum proteins in sera from 565 patients with stage II or III cervical cancer and identified 10 proteins that have an impact on disease specific survival (DSS) (Hazzard&rsquo, s ratio, HR = 1.51&ndash, 2.1). Surprisingly, all ten proteins are implicated in senescence-associated secreted phenotype (SASP), a hallmark of cellular senescence. Machine learning using Ridge regression of these SASP proteins can robustly stratify patients with high SASP, which is associated with poor survival, and patients with low SASP associated with good survival (HR = 3.09&ndash, 4.52). Furthermore, brachytherapy, an effective therapy for cervical cancer, greatly improves survival in SASP-high patients (HR = 3.3, p <, 5 ×, 10&minus, 5) but has little impact on survival of SASP-low patients (HR = 1.5, p = 0.31). These results demonstrate that cellular senescence is a major determining factor for survival and therapeutic response in cervical cancer and suggest that senescence reduction therapy may be an efficacious strategy to improve the therapeutic outcome of cervical cancer.
- Published
- 2020
12. A Previously Healthy Adolescent With Acute Psychosis and Severe Hyperhidrosis
- Author
-
Richard J. Shaw, Katherine Ort, Tatiana R. Rosenblatt, Chen Chen, Kim Hoang, Angela Niemi, and Rebecca J. Levy
- Subjects
Male ,Psychosis ,medicine.medical_specialty ,Pediatrics ,Neurology ,Adolescent ,Nerve Tissue Proteins ,Severity of Illness Index ,Diagnosis, Differential ,Severity of illness ,medicine ,Humans ,Hyperhidrosis ,Autoantibodies ,Autoimmune encephalitis ,Groin ,medicine.diagnostic_test ,business.industry ,Lumbar puncture ,Membrane Proteins ,medicine.disease ,Syringomyelia ,Blood pressure ,medicine.anatomical_structure ,Psychotic Disorders ,Pediatrics, Perinatology and Child Health ,Acute Disease ,medicine.symptom ,business - Abstract
A previously healthy 15-year-old boy presented with 3 months of progressive psychosis, insomnia, back and groin pain, and hyperhidrosis. On examination, the patient was disheveled, agitated, and soaked with sweat, with systolic blood pressure in the 160s and heart rate in the 130s. Aside from occasional auditory and visual hallucinations, his neurologic examination was normal. The patient was admitted for an extensive workup, including MRI of the brain and spine and lumbar puncture, which were normal. Through collaboration with various pediatric specialists, including psychiatry and neurology, a rare diagnosis was ultimately unveiled.
- Published
- 2020
13. A 73-gene proliferative transcriptomic signature predicts uterine serous carcinoma patient survival and response to primary therapy
- Author
-
Bunja Rungruang, Daniel T. Kleven, Duo Xu, Haitao Liu, John J. Wallbillich, Paul Minh Huy Tran, Sharad A. Ghamande, Chris L. Scelsi, Won Sok Lee, David Mysona, Jin-Xiong She, Pardeep Mittal, Sharad Purohit, Emily Myers, Diane Hopkins, John Nechtman, Lynn Kim Hoang Tran, and Boying Dun
- Subjects
0301 basic medicine ,Oncology ,Candidate gene ,medicine.medical_specialty ,Uterine serous carcinoma ,Transcriptome ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Tumor Cells, Cultured ,Humans ,Stage (cooking) ,Gene ,Aged ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Sequence Analysis, RNA ,Obstetrics and Gynecology ,Reproducibility of Results ,Middle Aged ,medicine.disease ,Prognosis ,Cystadenocarcinoma, Serous ,Serous fluid ,030104 developmental biology ,Tissue Array Analysis ,030220 oncology & carcinogenesis ,Cohort ,Uterine Neoplasms ,Disease Progression ,Biomarker (medicine) ,Female ,business - Abstract
Objectives To develop a transcriptomic signature capable of predicting overall survival (OS) for uterine serous carcinoma (USC). Methods RNAseq data for 58 USC patients were obtained from TCGA. Expression of 73 candidate genes was measured for 67 Augusta University (AU) samples using NanoString technology. Results Analysis of the TCGA RNAseq data identified 73 genes that individually predict prognosis for USC patients and an elastic net model with all 73 genes (USC73) distinguishes a good OS group with low USC73 score from a poor OS group with high USC73 score (5-year OS = 83.3% and 13.3% respectively, HR = 40.1; p = 3 × 10−8). This finding was validated in the independent AU cohort (HR = 4.3; p = 0.0004). The poor prognosis group with high USC73 score consists of 37.9% and 32.8% of patients in the TCGA and AU cohort respectively. USC73 score and pathologic stage independently contribute to OS and together provide the best prognostic value. Early stage, low USC73 patients have the best prognosis (5-year OS = 85.1% in the combined dataset), while advanced stage, high USC73 patients have the worst prognosis (5-year OS = 6.4%, HR = 30.5, p = 1.2 × 10−12). Consistent with the observed poor survival, primary cell cultures from high USC73 patients had higher proliferation rate and cell cycle progression; and high USC73 patients had lower rates of complete response to standard therapy. Conclusions The USC73 transcriptomic signature and stage independently predict OS of USC patients and the best prediction is achieved using USC73 and stage. USC73 may also serve as a therapeutic biomarker to guide patient care.
- Published
- 2019
14. Reporting of cross-over clinical trials of analgesic treatments for chronic pain: Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks systematic review and recommendations
- Author
-
Daniel Rothstein, Kim Hoang, Stephen Senn, Michael P. McDermott, Andrew McKeown, Nathaniel P. Katz, Srinivasa N. Raja, Robert H. Dworkin, Dennis C. Turk, Katarzyna B. Iwan, Jennifer S. Gewandter, Sarah Kralovic, Shannon M. Smith, and Ian Gilron
- Subjects
medicine.medical_specialty ,Databases, Factual ,media_common.quotation_subject ,Alternative medicine ,MEDLINE ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Animals ,Humans ,Translations ,030212 general & internal medicine ,Randomized Controlled Trials as Topic ,media_common ,Analgesics ,Cross-Over Studies ,business.industry ,Addiction ,Chronic pain ,Missing data ,medicine.disease ,Crossover study ,Clinical trial ,Anesthesiology and Pain Medicine ,Neurology ,Sample size determination ,Anesthesia ,Physical therapy ,Neurology (clinical) ,Chronic Pain ,business ,030217 neurology & neurosurgery - Abstract
Cross-over trials are typically more efficient than parallel group trials in that the sample size required to yield a desired power is substantially smaller. It is important, however, to consider some issues specific to cross-over trials when designing and reporting them, and when evaluating the published results of such trials. This systematic review evaluated the quality of reporting and its evolution over time in articles of cross-over clinical trials of pharmacologic treatments for chronic pain published between 1993 and 2013. Seventy-six (61%) articles reported a within-subject primary analysis, or if no primary analysis was identified, reported at least 1 within-subject analysis, which is required to achieve the gain in power associated with the cross-over design. For 39 (31%) articles, it was unclear whether analyses conducted were within-subject or between-group. Only 36 (29%) articles reported a method to accommodate missing data (eg, last observation carried forward, n = 29), and of those, just 14 included subjects in the analysis who provided data from only 1 period. Of the articles that identified a within-subject primary analysis, 21 (51%) provided sufficient information for the results to be included in a meta-analysis (ie, estimates of the within-subject treatment effect and variability). These results and others presented in this article demonstrate deficiencies in reporting of cross-over trials for analgesic treatments. Clearer reporting in future trials could improve readers' ability to critically evaluate the results, use these data in meta-analyses, and plan future trials. Recommendations for proper reporting of cross-over trials that apply to any condition are provided.
- Published
- 2016
15. Factors Influencing Survival and Survivorship Outcomes in Vulvar Cancer
- Author
-
L. Griswold, Bunja Rungruang, Sharad A. Ghamande, C. Bailey, Lynn Kim Hoang Tran, C. Tarallo, Khilen Patel, and Heather R. Williams
- Subjects
Oncology ,medicine.medical_specialty ,business.industry ,Internal medicine ,Survivorship curve ,Obstetrics and Gynecology ,Medicine ,Vulvar cancer ,business ,medicine.disease - Published
- 2020
16. Implementation of a Prehospital Protocol Change For Asthmatic Children
- Author
-
Mary Kate Claiborne, Anriada Nassif, Daniel G Ostermayer, Elizabeth A. Camp, Kim Hoang, and Manish I. Shah
- Subjects
Pediatric emergency ,Male ,medicine.medical_specialty ,Emergency Medical Services ,Adolescent ,Critical Care ,Asthma treatment ,Emergency Nursing ,03 medical and health sciences ,0302 clinical medicine ,Clinical Protocols ,immune system diseases ,030225 pediatrics ,Emergency medical services ,Medicine ,Humans ,Child ,Asthma ,Retrospective Studies ,Protocol (science) ,Evidence-Based Medicine ,Respiratory distress ,business.industry ,030208 emergency & critical care medicine ,medicine.disease ,respiratory tract diseases ,Asthmatic children ,Medical services ,Emergency Medical Technicians ,Intensive Care Units ,Child, Preschool ,Emergency medicine ,Emergency Medicine ,Female ,business ,Respiratory Insufficiency - Abstract
Respiratory distress due to asthma is a common reason for pediatric emergency medical services (EMS) transports. Timely initiation of asthma treatment, including glucocorticoids, improves hospital outcomes. The impact of EMS-administered glucocorticoids on hospital-based outcomes for pediatric asthma patients is unknown.The objective of this study was to evaluate the effect of an evidence-based pediatric EMS asthma protocol update, inclusive of oral glucocorticoid administration, on time to hospital discharge.This was a retrospective cohort study of children (2-18 years) with an acute asthma exacerbation transported by an urban EMS system to 10 emergency departments over 2 years. The investigators implemented an EMS protocol update one year into the study period requiring glucocorticoid administration for all patients, with the major change being inclusion of oral dexamethasone (0.6 mg/kg, max. dose = 10 mg). Protocol implementation included mandatory paramedic training. Data was abstracted from linked prehospital and hospital records. Continuous data were compared before and after the protocol change with the Mann-Whitney test, and categorical data were compared with the Pearson χDuring the study period, 482 asthmatic children met inclusion criteria. After the protocol change, patients were more likely to receive a prehospital glucocorticoid (11% vs. 18%, p = 0.02). Median total hospital time after the protocol change decreased from 6.1 hours (95% CI: 5.4-6.8) to 4.5 hours (95% CI: 4.2-4.8), p0.001. Total care time, defined as time from ambulance arrival to hospital discharge, also decreased [6.6 hours (95% CI: 5.8-7.3) vs. 5.2 hours (95% CI: 4.8-5.6), p = 0.01]. Overall, patients were less likely to be admitted to the hospital (30% vs. 21%, p = 0.02) after the change. Those with more severe exacerbations were less likely to be admitted to a critical care unit (82% vs. 44%, p = 0.02) after the change, rather than an acute care floor.Prehospital protocol change for asthmatic children is associated with shorter total hospital and total care times. This protocol change was also associated with decreased hospitalization rates and less need for critical care in those hospitalized. Further study is necessary to determine if other factors also contributed.
- Published
- 2018
17. Warfarin Interaction With Hepatic Cytochrome P-450 Enzyme-Inducing Anticonvulsants
- Author
-
Thomas Delate, Kim Hoang, John R. Horn, Daniel M. Witt, and Nathan P. Clark
- Subjects
Phenytoin ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,INR self-monitoring ,medicine ,Humans ,heterocyclic compounds ,Drug Interactions ,030212 general & internal medicine ,cardiovascular diseases ,International Normalized Ratio ,Oxcarbazepine ,Aged ,Aged, 80 and over ,Cytochrome P-450 Enzyme Inducers ,business.industry ,Warfarin ,Atrial fibrillation ,Hematology ,General Medicine ,Carbamazepine ,Original Articles ,Middle Aged ,medicine.disease ,Anticonvulsant ,Anesthesia ,Phenobarbital ,Anticonvulsants ,business ,medicine.drug ,Follow-Up Studies - Abstract
Initiation of cytochrome P-450 (CYP)-inducing anticonvulsant medications during warfarin therapy may decrease anticoagulant effect and necessitate frequent warfarin dose adjustments to maintain therapeutic response measured by the international normalized ratio (INR). Clinical information regarding interactions between warfarin and these medications is limited. This study investigated warfarin dose and INR response following CYP-inducing anticonvulsant initiation among chronic warfarin users. This retrospective, pre-post study included patients ≥18 years who were receiving chronic warfarin therapy and who initiated carbamazepine, oxcarbazepine, phenobarbital, or phenytoin between January 1, 2006, and December 31, 2013. Mean weekly warfarin dose/INR ratio and mean weekly warfarin dose were compared in the 90 days pre- and days post-anticonvulsant initiation periods. Of the 57 included patients, 34 (60%), 15 (26%), 6 (11%), and 2 (3%) patients purchased a prescription for carbamazepine, phenytoin, oxcarbazepine, and phenobarbital, respectively. Mean age was 70 years, 59% were female, and the majority were receiving chronic warfarin therapy for atrial fibrillation (39%) or venous thromboembolism (26%). The ratio of mean warfarin dose and INR increased significantly between the pre- and post-anticonvulsant initiation periods (from 13 mg/INR to 18 mg/INR, respectively, P ≤ .001) as did the mean weekly warfarin dose (from 33 mg to 37 mg, P =
- Published
- 2017
18. Pediatricians' Communication About Weight With Overweight Latino Children and Their Parents
- Author
-
Sergio Montaño, Hua Lin, Kim Hoang, Glenn Flores, and Christy B. Turer
- Subjects
Male ,Parents ,medicine.medical_specialty ,Pediatrics ,Referral ,Cross-sectional study ,Primary care ,Overweight ,computer.software_genre ,Article ,Childhood obesity ,medicine ,Humans ,Child ,Physician-Patient Relations ,Growth chart ,business.industry ,Communication ,Body Weight ,Hispanic or Latino ,medicine.disease ,Cross-Sectional Studies ,Family medicine ,Limited English proficiency ,Pediatrics, Perinatology and Child Health ,Female ,medicine.symptom ,business ,computer ,Interpreter - Abstract
OBJECTIVE: To examine pediatrician weight-management communication with overweight Latino children and their parents and whether communication differs by pediatrician-patient language congruency. METHODS: Mixed-methods analysis of video-recorded primary care visits with overweight 6- to 12-year-old children. Three independent reviewers used video/transcript data to identify American Academy of Pediatrics–recommended communication content and establish communication themes/subthemes. Language incongruence (LI) was defined as pediatrician limited Spanish proficiency combined with parent limited English proficiency (LEP). Bivariate analyses examined associations of LI with communication content/themes. RESULTS: The mean child age ( N = 26) was 9.5 years old; 81% were obese. Sixty-two percent of parents had LEP. Twenty-seven percent of pediatricians were Spanish-proficient. An interpreter was used in 25% of LI visits. Major themes for how pediatricians communicate overweight included BMI, weight, obese, chubby, and no communication (which only occurred in LI visits). The pediatrician communicated child overweight in 81% of visits, a weight-management plan in 50%, a culturally relevant dietary recommendation in 42%, a recommendation for a follow-up visit in 65%, and nutrition referral in 50%. Growth charts were used in 62% of visits but significantly less often in LI (13%) versus language-congruent (83%) visits ( P CONCLUSIONS: Many overweight Latino children do not receive direct communication of overweight, culturally sensitive dietary advice, or follow-up visits. LI is associated with a lower likelihood of growth chart use. During primary care visits with overweight Latino children, special attention should be paid to directly communicating child overweight, formulating culturally sensitive weight-management plans, and follow-up. With LEP families, vigilance is needed in providing a trained interpreter and using growth charts.
- Published
- 2014
19. Abstract 2301: Antiglycan antibodies as predictors of therapeutic outcome in cervical cancer patients
- Author
-
Boying Dun, Ferris G. Ferris, John J. Wallbillich, Lynn Kim Hoang Tran, Sharad Purohit, Jin-Xiong She, Xuezheng Song, and Paul Minh Huy Tran
- Subjects
Cervical cancer ,Oncology ,Cancer Research ,medicine.medical_specialty ,biology ,Proportional hazards model ,business.industry ,medicine.medical_treatment ,Brachytherapy ,Cancer ,medicine.disease ,Radiation therapy ,Antigen ,Internal medicine ,medicine ,biology.protein ,Progression-free survival ,Antibody ,business - Abstract
Cervical cancer is a significant cause of cancer related death among women, with the highest mortality rates in developing countries. We aim to identify serum biomarkers for predicting outcome of radio therapy alone or combination of radiotherapy and brachytherapy. We measured natural anti-glycan IgG antibodies in the serum of stage II (n=276) and III (n=292) cervical cancer patients treated with radiation alone or in combination with brachytherapy on a suspension glycan array containing 184 glycans. Overall and progression free survival was used to determine the treatment outcome by Kaplan-Meier and Cox proportional hazards ratio. Significant protective effects were observed for Blood Group H antigens (HR=0.642, p=0.0013), Lewis Antigens (0.72, 0.015; 0.654, 0.003), Galili antigens (0.671, p=0.004), and other glycans belonging to Isoglobo (0.671,0.004) and 3fucosyllactose series (0.687,0.004). The protective effects remained significant after adjusting for stage and treatment. Our data suggest that measurement of natural anti-glycan IgG antibodies in serum can predict outcome of therapy in cervical cancer patients. Citation Format: SHARAD PUROHIT, Paul M. Tran, Lynn K. Tran, Xuezheng Song, Ferris G. Ferris, John J. Wallbillich, Boying Dun, Jin-Xiong She. Antiglycan antibodies as predictors of therapeutic outcome in cervical cancer patients [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 2301.
- Published
- 2019
20. Anti-tax interacting protein-1 (TIP-1) monoclonal antibody targets human cancers
- Author
-
Jalen Scott, Richard Laforest, Buck E. Rogers, Walter J. Akers, Heping Yan, Vaishali Kapoor, Hua Li, Dinesh Thotala, Dennis E. Hallahan, and Kim Hoang Nguyen
- Subjects
0301 basic medicine ,Pathology ,medicine.medical_treatment ,TIP-1 ,Epitope ,Mice ,0302 clinical medicine ,Antineoplastic Agents, Immunological ,Neoplasms ,Antibody-dependent cell-mediated cytotoxicity ,Mice, Inbred BALB C ,biology ,Indium Radioisotopes ,Intracellular Signaling Peptides and Proteins ,Antibodies, Monoclonal ,3. Good health ,Oncology ,030220 oncology & carcinogenesis ,Radioimmunotherapy ,Female ,Antibody ,in vivo imaging ,Research Paper ,medicine.medical_specialty ,Single Photon Emission Computed Tomography Computed Tomography ,medicine.drug_class ,Mice, Nude ,Enzyme-Linked Immunosorbent Assay ,Monoclonal antibody ,03 medical and health sciences ,In vivo ,Antigens, Neoplasm ,Cell Line, Tumor ,medicine ,Animals ,Humans ,radiation-inducible ,business.industry ,Cancer ,medicine.disease ,Molecular biology ,Xenograft Model Antitumor Assays ,Mice, Inbred C57BL ,030104 developmental biology ,monoclonal antibody ,Cancer cell ,biology.protein ,business ,Epitope Mapping - Abstract
Radiation-inducible neo-antigens are proteins expressed on cancer cell surface after exposure to ionizing radiation (IR). These neo-antigens provide opportunities to specifically target cancers while sparing normal tissues. Tax interacting protein-1 (TIP-1) is induced by irradiation and is translocated to the surface of cancer cells. We have developed a monoclonal antibody, 2C6F3, against TIP-1. Epitope mapping revealed that 2C6F3 binds to the QPVTAVVQRV epitope of the TIP-1 protein. 2C6F3 binds to the surface of lung cancer (A549, LLC) and glioma (D54, GL261) cell lines. 2C6F3 binds specifically to TIP-1 and ELISA analysis showed that unconjugated 2C6F3 efficiently blocked binding of radiolabeled 2C6F3 to purified TIP-1 protein. To study in vivo tumor binding, we injected near infrared (NIR) fluorochrome-conjugated 2C6F3 via tail vein in mice bearing subcutaneous LLC and GL261 heterotopic tumors. The NIR images indicated that 2C6F3 bound specifically to irradiated LLC and GL261 tumors, with little or no binding in un-irradiated tumors. We also determined the specificity of 2C6F3 to bind tumors in vivo using SPECT/CT imaging. 2C6F3 was conjugated with diethylene triamine penta acetic acid (DTPA) chelator and radiolabeled with 111Indium (111In). SPECT/CT imaging revealed that 111In-2C6F3 bound more to the irradiated LLC tumors compared to un-irradiated tumors. Furthermore, injection of DTPA-2C6F3 labeled with the therapeutic radioisotope, 90Y, (90Y-DTPA-2C6F3) significantly delayed LLC tumor growth. 2C6F3 mediated antibody dependent cell-mediated cytotoxicity (ADCC) and antibody dependent cell-mediated phagocytosis (ADCP) in vitro. In conclusion, the monoclonal antibody 2C6F3 binds specifically to TIP-1 on cancer and radio-immunoconjugated 2C6F3 improves tumor control.
- Published
- 2016
21. The association between positive screen for future persistent posttraumatic stress symptoms and injury incident variables in the pediatric trauma care setting
- Author
-
Prerna Arora, R. Todd Maxson, Kevin D. Stark, Kim Hoang Nguyen, Catherine Funk, Nilda M. Garcia, Nicolina A. Calfa, Yesenia Marroquin, Sarah V. Duzinski, Kristina Metz, and Karla A. Lawson
- Subjects
Male ,Parents ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Population ,Poison control ,Comorbidity ,Anxiety ,Critical Care and Intensive Care Medicine ,Risk Assessment ,Cohort Studies ,Stress Disorders, Post-Traumatic ,Age Distribution ,Injury Severity Score ,Trauma Centers ,Predictive Value of Tests ,Acute care ,Sickness Impact Profile ,Injury prevention ,medicine ,Humans ,Prospective Studies ,Parent-Child Relations ,Sex Distribution ,education ,Child ,education.field_of_study ,business.industry ,Incidence ,Length of Stay ,medicine.disease ,Hospitals, Pediatric ,United States ,Child, Preschool ,Wounds and Injuries ,Surgery ,Female ,business ,Child, Hospitalized ,State-Trait Anxiety Inventory ,Needs Assessment ,Pediatric trauma ,Follow-Up Studies - Abstract
BACKGROUND: Posttraumatic stress (PTS) disorder after injury is a significant yet underaddressed issue in the trauma care setting. Parental anxiety may impact a child's risk of future, persistent PTS symptoms after injury. This study aimed to: (1) identify injury incident and demographic variables related to a positive screen for future, persistent PTS symptoms in children; and (2) examine the relationship between parental anxiety and a positive screen for future, persistent PTS symptoms in children. METHODS: From November 2009 to August 2010, 124 patients were enrolled at a pediatric trauma center. Inclusion criteria were as follows: (1) age 7 years to 17 years; (2) hospitalized for at least 24 hours after physical trauma; and (3) English or Spanish speaking. State and trait anxiety were measured for both pediatric patients and their parents/guardians via the state trait anxiety inventory for children and state trait anxiety inventory, respectively. Risk for future, persistent PTS, among pediatric patients was assessed via the screening tool for early predictor of posttraumatic stress disorder (STEPP). RESULTS: Of 116 participants assessed via the STEPP, 32 (28%) screened positive for risk of future, persistent PTS symptoms. Motor vehicle collision and parental presence at injury were associated with a positive STEPP screen. The effect of parental presence on positive STEPP screen was modified by parental trait anxiety. Children of anxious parents present at injury were over 14 times as likely to screen positive for risk of future, persistent PTS, as those without a parent present. CONCLUSION: The risk of future, persistent PTS, after injury among the pediatric population is substantial. Parents with existing trait anxiety are shown to influence their child's risk for future, persistent PTS, particularly if present at the injury event. Further study of PTS prevention and control strategies are needed among this population within the trauma care setting. (J Trauma Acute Care Surg. 2012;72: 1640-1646. Copyright © 2012 by Lippincott Williams & Wilkins) LEVEL OF EVIDENCE: Epidemiological study, level II. Language: en
- Published
- 2012
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.